vendor/assets/javascripts/chart2.js in chart-0.1.4.4 vs vendor/assets/javascripts/chart2.js in chart-0.1.4.6

- old
+ new

@@ -1,17 +1,659 @@ /*! * Chart.js * http://chartjs.org/ - * Version: 2.0.2 + * Version: 2.1.3 * * Copyright 2016 Nick Downie * Released under the MIT license * https://github.com/chartjs/Chart.js/blob/master/LICENSE.md */ (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){ },{}],2:[function(require,module,exports){ +/* MIT license */ +var colorNames = require('color-name'); + +module.exports = { + getRgba: getRgba, + getHsla: getHsla, + getRgb: getRgb, + getHsl: getHsl, + getHwb: getHwb, + getAlpha: getAlpha, + + hexString: hexString, + rgbString: rgbString, + rgbaString: rgbaString, + percentString: percentString, + percentaString: percentaString, + hslString: hslString, + hslaString: hslaString, + hwbString: hwbString, + keyword: keyword +} + +function getRgba(string) { + if (!string) { + return; + } + var abbr = /^#([a-fA-F0-9]{3})$/, + hex = /^#([a-fA-F0-9]{6})$/, + rgba = /^rgba?\(\s*([+-]?\d+)\s*,\s*([+-]?\d+)\s*,\s*([+-]?\d+)\s*(?:,\s*([+-]?[\d\.]+)\s*)?\)$/, + per = /^rgba?\(\s*([+-]?[\d\.]+)\%\s*,\s*([+-]?[\d\.]+)\%\s*,\s*([+-]?[\d\.]+)\%\s*(?:,\s*([+-]?[\d\.]+)\s*)?\)$/, + keyword = /(\w+)/; + + var rgb = [0, 0, 0], + a = 1, + match = string.match(abbr); + if (match) { + match = match[1]; + for (var i = 0; i < rgb.length; i++) { + rgb[i] = parseInt(match[i] + match[i], 16); + } + } + else if (match = string.match(hex)) { + match = match[1]; + for (var i = 0; i < rgb.length; i++) { + rgb[i] = parseInt(match.slice(i * 2, i * 2 + 2), 16); + } + } + else if (match = string.match(rgba)) { + for (var i = 0; i < rgb.length; i++) { + rgb[i] = parseInt(match[i + 1]); + } + a = parseFloat(match[4]); + } + else if (match = string.match(per)) { + for (var i = 0; i < rgb.length; i++) { + rgb[i] = Math.round(parseFloat(match[i + 1]) * 2.55); + } + a = parseFloat(match[4]); + } + else if (match = string.match(keyword)) { + if (match[1] == "transparent") { + return [0, 0, 0, 0]; + } + rgb = colorNames[match[1]]; + if (!rgb) { + return; + } + } + + for (var i = 0; i < rgb.length; i++) { + rgb[i] = scale(rgb[i], 0, 255); + } + if (!a && a != 0) { + a = 1; + } + else { + a = scale(a, 0, 1); + } + rgb[3] = a; + return rgb; +} + +function getHsla(string) { + if (!string) { + return; + } + var hsl = /^hsla?\(\s*([+-]?\d+)(?:deg)?\s*,\s*([+-]?[\d\.]+)%\s*,\s*([+-]?[\d\.]+)%\s*(?:,\s*([+-]?[\d\.]+)\s*)?\)/; + var match = string.match(hsl); + if (match) { + var alpha = parseFloat(match[4]); + var h = scale(parseInt(match[1]), 0, 360), + s = scale(parseFloat(match[2]), 0, 100), + l = scale(parseFloat(match[3]), 0, 100), + a = scale(isNaN(alpha) ? 1 : alpha, 0, 1); + return [h, s, l, a]; + } +} + +function getHwb(string) { + if (!string) { + return; + } + var hwb = /^hwb\(\s*([+-]?\d+)(?:deg)?\s*,\s*([+-]?[\d\.]+)%\s*,\s*([+-]?[\d\.]+)%\s*(?:,\s*([+-]?[\d\.]+)\s*)?\)/; + var match = string.match(hwb); + if (match) { + var alpha = parseFloat(match[4]); + var h = scale(parseInt(match[1]), 0, 360), + w = scale(parseFloat(match[2]), 0, 100), + b = scale(parseFloat(match[3]), 0, 100), + a = scale(isNaN(alpha) ? 1 : alpha, 0, 1); + return [h, w, b, a]; + } +} + +function getRgb(string) { + var rgba = getRgba(string); + return rgba && rgba.slice(0, 3); +} + +function getHsl(string) { + var hsla = getHsla(string); + return hsla && hsla.slice(0, 3); +} + +function getAlpha(string) { + var vals = getRgba(string); + if (vals) { + return vals[3]; + } + else if (vals = getHsla(string)) { + return vals[3]; + } + else if (vals = getHwb(string)) { + return vals[3]; + } +} + +// generators +function hexString(rgb) { + return "#" + hexDouble(rgb[0]) + hexDouble(rgb[1]) + + hexDouble(rgb[2]); +} + +function rgbString(rgba, alpha) { + if (alpha < 1 || (rgba[3] && rgba[3] < 1)) { + return rgbaString(rgba, alpha); + } + return "rgb(" + rgba[0] + ", " + rgba[1] + ", " + rgba[2] + ")"; +} + +function rgbaString(rgba, alpha) { + if (alpha === undefined) { + alpha = (rgba[3] !== undefined ? rgba[3] : 1); + } + return "rgba(" + rgba[0] + ", " + rgba[1] + ", " + rgba[2] + + ", " + alpha + ")"; +} + +function percentString(rgba, alpha) { + if (alpha < 1 || (rgba[3] && rgba[3] < 1)) { + return percentaString(rgba, alpha); + } + var r = Math.round(rgba[0]/255 * 100), + g = Math.round(rgba[1]/255 * 100), + b = Math.round(rgba[2]/255 * 100); + + return "rgb(" + r + "%, " + g + "%, " + b + "%)"; +} + +function percentaString(rgba, alpha) { + var r = Math.round(rgba[0]/255 * 100), + g = Math.round(rgba[1]/255 * 100), + b = Math.round(rgba[2]/255 * 100); + return "rgba(" + r + "%, " + g + "%, " + b + "%, " + (alpha || rgba[3] || 1) + ")"; +} + +function hslString(hsla, alpha) { + if (alpha < 1 || (hsla[3] && hsla[3] < 1)) { + return hslaString(hsla, alpha); + } + return "hsl(" + hsla[0] + ", " + hsla[1] + "%, " + hsla[2] + "%)"; +} + +function hslaString(hsla, alpha) { + if (alpha === undefined) { + alpha = (hsla[3] !== undefined ? hsla[3] : 1); + } + return "hsla(" + hsla[0] + ", " + hsla[1] + "%, " + hsla[2] + "%, " + + alpha + ")"; +} + +// hwb is a bit different than rgb(a) & hsl(a) since there is no alpha specific syntax +// (hwb have alpha optional & 1 is default value) +function hwbString(hwb, alpha) { + if (alpha === undefined) { + alpha = (hwb[3] !== undefined ? hwb[3] : 1); + } + return "hwb(" + hwb[0] + ", " + hwb[1] + "%, " + hwb[2] + "%" + + (alpha !== undefined && alpha !== 1 ? ", " + alpha : "") + ")"; +} + +function keyword(rgb) { + return reverseNames[rgb.slice(0, 3)]; +} + +// helpers +function scale(num, min, max) { + return Math.min(Math.max(min, num), max); +} + +function hexDouble(num) { + var str = num.toString(16).toUpperCase(); + return (str.length < 2) ? "0" + str : str; +} + + +//create a list of reverse color names +var reverseNames = {}; +for (var name in colorNames) { + reverseNames[colorNames[name]] = name; +} + +},{"color-name":6}],3:[function(require,module,exports){ +/* MIT license */ + +var convert = require("color-convert"), + string = require("chartjs-color-string"); + +var Color = function(obj) { + if (obj instanceof Color) return obj; + if (!(this instanceof Color)) return new Color(obj); + + this.values = { + rgb: [0, 0, 0], + hsl: [0, 0, 0], + hsv: [0, 0, 0], + hwb: [0, 0, 0], + cmyk: [0, 0, 0, 0], + alpha: 1 + } + + // parse Color() argument + if (typeof obj == "string") { + var vals = string.getRgba(obj); + if (vals) { + this.setValues("rgb", vals); + } else if (vals = string.getHsla(obj)) { + this.setValues("hsl", vals); + } else if (vals = string.getHwb(obj)) { + this.setValues("hwb", vals); + } else { + throw new Error("Unable to parse color from string \"" + obj + "\""); + } + } else if (typeof obj == "object") { + var vals = obj; + if (vals["r"] !== undefined || vals["red"] !== undefined) { + this.setValues("rgb", vals) + } else if (vals["l"] !== undefined || vals["lightness"] !== undefined) { + this.setValues("hsl", vals) + } else if (vals["v"] !== undefined || vals["value"] !== undefined) { + this.setValues("hsv", vals) + } else if (vals["w"] !== undefined || vals["whiteness"] !== undefined) { + this.setValues("hwb", vals) + } else if (vals["c"] !== undefined || vals["cyan"] !== undefined) { + this.setValues("cmyk", vals) + } else { + throw new Error("Unable to parse color from object " + JSON.stringify(obj)); + } + } +} + +Color.prototype = { + rgb: function(vals) { + return this.setSpace("rgb", arguments); + }, + hsl: function(vals) { + return this.setSpace("hsl", arguments); + }, + hsv: function(vals) { + return this.setSpace("hsv", arguments); + }, + hwb: function(vals) { + return this.setSpace("hwb", arguments); + }, + cmyk: function(vals) { + return this.setSpace("cmyk", arguments); + }, + + rgbArray: function() { + return this.values.rgb; + }, + hslArray: function() { + return this.values.hsl; + }, + hsvArray: function() { + return this.values.hsv; + }, + hwbArray: function() { + if (this.values.alpha !== 1) { + return this.values.hwb.concat([this.values.alpha]) + } + return this.values.hwb; + }, + cmykArray: function() { + return this.values.cmyk; + }, + rgbaArray: function() { + var rgb = this.values.rgb; + return rgb.concat([this.values.alpha]); + }, + hslaArray: function() { + var hsl = this.values.hsl; + return hsl.concat([this.values.alpha]); + }, + alpha: function(val) { + if (val === undefined) { + return this.values.alpha; + } + this.setValues("alpha", val); + return this; + }, + + red: function(val) { + return this.setChannel("rgb", 0, val); + }, + green: function(val) { + return this.setChannel("rgb", 1, val); + }, + blue: function(val) { + return this.setChannel("rgb", 2, val); + }, + hue: function(val) { + return this.setChannel("hsl", 0, val); + }, + saturation: function(val) { + return this.setChannel("hsl", 1, val); + }, + lightness: function(val) { + return this.setChannel("hsl", 2, val); + }, + saturationv: function(val) { + return this.setChannel("hsv", 1, val); + }, + whiteness: function(val) { + return this.setChannel("hwb", 1, val); + }, + blackness: function(val) { + return this.setChannel("hwb", 2, val); + }, + value: function(val) { + return this.setChannel("hsv", 2, val); + }, + cyan: function(val) { + return this.setChannel("cmyk", 0, val); + }, + magenta: function(val) { + return this.setChannel("cmyk", 1, val); + }, + yellow: function(val) { + return this.setChannel("cmyk", 2, val); + }, + black: function(val) { + return this.setChannel("cmyk", 3, val); + }, + + hexString: function() { + return string.hexString(this.values.rgb); + }, + rgbString: function() { + return string.rgbString(this.values.rgb, this.values.alpha); + }, + rgbaString: function() { + return string.rgbaString(this.values.rgb, this.values.alpha); + }, + percentString: function() { + return string.percentString(this.values.rgb, this.values.alpha); + }, + hslString: function() { + return string.hslString(this.values.hsl, this.values.alpha); + }, + hslaString: function() { + return string.hslaString(this.values.hsl, this.values.alpha); + }, + hwbString: function() { + return string.hwbString(this.values.hwb, this.values.alpha); + }, + keyword: function() { + return string.keyword(this.values.rgb, this.values.alpha); + }, + + rgbNumber: function() { + return (this.values.rgb[0] << 16) | (this.values.rgb[1] << 8) | this.values.rgb[2]; + }, + + luminosity: function() { + // http://www.w3.org/TR/WCAG20/#relativeluminancedef + var rgb = this.values.rgb; + var lum = []; + for (var i = 0; i < rgb.length; i++) { + var chan = rgb[i] / 255; + lum[i] = (chan <= 0.03928) ? chan / 12.92 : Math.pow(((chan + 0.055) / 1.055), 2.4) + } + return 0.2126 * lum[0] + 0.7152 * lum[1] + 0.0722 * lum[2]; + }, + + contrast: function(color2) { + // http://www.w3.org/TR/WCAG20/#contrast-ratiodef + var lum1 = this.luminosity(); + var lum2 = color2.luminosity(); + if (lum1 > lum2) { + return (lum1 + 0.05) / (lum2 + 0.05) + }; + return (lum2 + 0.05) / (lum1 + 0.05); + }, + + level: function(color2) { + var contrastRatio = this.contrast(color2); + return (contrastRatio >= 7.1) ? 'AAA' : (contrastRatio >= 4.5) ? 'AA' : ''; + }, + + dark: function() { + // YIQ equation from http://24ways.org/2010/calculating-color-contrast + var rgb = this.values.rgb, + yiq = (rgb[0] * 299 + rgb[1] * 587 + rgb[2] * 114) / 1000; + return yiq < 128; + }, + + light: function() { + return !this.dark(); + }, + + negate: function() { + var rgb = [] + for (var i = 0; i < 3; i++) { + rgb[i] = 255 - this.values.rgb[i]; + } + this.setValues("rgb", rgb); + return this; + }, + + lighten: function(ratio) { + this.values.hsl[2] += this.values.hsl[2] * ratio; + this.setValues("hsl", this.values.hsl); + return this; + }, + + darken: function(ratio) { + this.values.hsl[2] -= this.values.hsl[2] * ratio; + this.setValues("hsl", this.values.hsl); + return this; + }, + + saturate: function(ratio) { + this.values.hsl[1] += this.values.hsl[1] * ratio; + this.setValues("hsl", this.values.hsl); + return this; + }, + + desaturate: function(ratio) { + this.values.hsl[1] -= this.values.hsl[1] * ratio; + this.setValues("hsl", this.values.hsl); + return this; + }, + + whiten: function(ratio) { + this.values.hwb[1] += this.values.hwb[1] * ratio; + this.setValues("hwb", this.values.hwb); + return this; + }, + + blacken: function(ratio) { + this.values.hwb[2] += this.values.hwb[2] * ratio; + this.setValues("hwb", this.values.hwb); + return this; + }, + + greyscale: function() { + var rgb = this.values.rgb; + // http://en.wikipedia.org/wiki/Grayscale#Converting_color_to_grayscale + var val = rgb[0] * 0.3 + rgb[1] * 0.59 + rgb[2] * 0.11; + this.setValues("rgb", [val, val, val]); + return this; + }, + + clearer: function(ratio) { + this.setValues("alpha", this.values.alpha - (this.values.alpha * ratio)); + return this; + }, + + opaquer: function(ratio) { + this.setValues("alpha", this.values.alpha + (this.values.alpha * ratio)); + return this; + }, + + rotate: function(degrees) { + var hue = this.values.hsl[0]; + hue = (hue + degrees) % 360; + hue = hue < 0 ? 360 + hue : hue; + this.values.hsl[0] = hue; + this.setValues("hsl", this.values.hsl); + return this; + }, + + mix: function(color2, weight) { + weight = 1 - (weight == null ? 0.5 : weight); + + // algorithm from Sass's mix(). Ratio of first color in mix is + // determined by the alphas of both colors and the weight + var t1 = weight * 2 - 1, + d = this.alpha() - color2.alpha(); + + var weight1 = (((t1 * d == -1) ? t1 : (t1 + d) / (1 + t1 * d)) + 1) / 2; + var weight2 = 1 - weight1; + + var rgb = this.rgbArray(); + var rgb2 = color2.rgbArray(); + + for (var i = 0; i < rgb.length; i++) { + rgb[i] = rgb[i] * weight1 + rgb2[i] * weight2; + } + this.setValues("rgb", rgb); + + var alpha = this.alpha() * weight + color2.alpha() * (1 - weight); + this.setValues("alpha", alpha); + + return this; + }, + + toJSON: function() { + return this.rgb(); + }, + + clone: function() { + return new Color(this.rgb()); + } +} + + +Color.prototype.getValues = function(space) { + var vals = {}; + for (var i = 0; i < space.length; i++) { + vals[space.charAt(i)] = this.values[space][i]; + } + if (this.values.alpha != 1) { + vals["a"] = this.values.alpha; + } + // {r: 255, g: 255, b: 255, a: 0.4} + return vals; +} + +Color.prototype.setValues = function(space, vals) { + var spaces = { + "rgb": ["red", "green", "blue"], + "hsl": ["hue", "saturation", "lightness"], + "hsv": ["hue", "saturation", "value"], + "hwb": ["hue", "whiteness", "blackness"], + "cmyk": ["cyan", "magenta", "yellow", "black"] + }; + + var maxes = { + "rgb": [255, 255, 255], + "hsl": [360, 100, 100], + "hsv": [360, 100, 100], + "hwb": [360, 100, 100], + "cmyk": [100, 100, 100, 100] + }; + + var alpha = 1; + if (space == "alpha") { + alpha = vals; + } else if (vals.length) { + // [10, 10, 10] + this.values[space] = vals.slice(0, space.length); + alpha = vals[space.length]; + } else if (vals[space.charAt(0)] !== undefined) { + // {r: 10, g: 10, b: 10} + for (var i = 0; i < space.length; i++) { + this.values[space][i] = vals[space.charAt(i)]; + } + alpha = vals.a; + } else if (vals[spaces[space][0]] !== undefined) { + // {red: 10, green: 10, blue: 10} + var chans = spaces[space]; + for (var i = 0; i < space.length; i++) { + this.values[space][i] = vals[chans[i]]; + } + alpha = vals.alpha; + } + this.values.alpha = Math.max(0, Math.min(1, (alpha !== undefined ? alpha : this.values.alpha))); + if (space == "alpha") { + return; + } + + // cap values of the space prior converting all values + for (var i = 0; i < space.length; i++) { + var capped = Math.max(0, Math.min(maxes[space][i], this.values[space][i])); + this.values[space][i] = Math.round(capped); + } + + // convert to all the other color spaces + for (var sname in spaces) { + if (sname != space) { + this.values[sname] = convert[space][sname](this.values[space]) + } + + // cap values + for (var i = 0; i < sname.length; i++) { + var capped = Math.max(0, Math.min(maxes[sname][i], this.values[sname][i])); + this.values[sname][i] = Math.round(capped); + } + } + return true; +} + +Color.prototype.setSpace = function(space, args) { + var vals = args[0]; + if (vals === undefined) { + // color.rgb() + return this.getValues(space); + } + // color.rgb(10, 10, 10) + if (typeof vals == "number") { + vals = Array.prototype.slice.call(args); + } + this.setValues(space, vals); + return this; +} + +Color.prototype.setChannel = function(space, index, val) { + if (val === undefined) { + // color.red() + return this.values[space][index]; + } + // color.red(100) + this.values[space][index] = val; + this.setValues(space, this.values[space]); + return this; +} + +window.Color = module.exports = Color + +},{"chartjs-color-string":2,"color-convert":5}],4:[function(require,module,exports){ /* MIT license */ module.exports = { rgb2hsl: rgb2hsl, rgb2hsv: rgb2hsv, @@ -707,11 +1349,11 @@ var reverseKeywords = {}; for (var key in cssKeywords) { reverseKeywords[JSON.stringify(cssKeywords[key])] = key; } -},{}],3:[function(require,module,exports){ +},{}],5:[function(require,module,exports){ var conversions = require("./conversions"); var convert = function() { return new Converter(); } @@ -800,234 +1442,11 @@ return this.routeSpace(space, arguments); } }); module.exports = convert; -},{"./conversions":2}],4:[function(require,module,exports){ -/* MIT license */ -var colorNames = require('color-name'); - -module.exports = { - getRgba: getRgba, - getHsla: getHsla, - getRgb: getRgb, - getHsl: getHsl, - getHwb: getHwb, - getAlpha: getAlpha, - - hexString: hexString, - rgbString: rgbString, - rgbaString: rgbaString, - percentString: percentString, - percentaString: percentaString, - hslString: hslString, - hslaString: hslaString, - hwbString: hwbString, - keyword: keyword -} - -function getRgba(string) { - if (!string) { - return; - } - var abbr = /^#([a-fA-F0-9]{3})$/, - hex = /^#([a-fA-F0-9]{6})$/, - rgba = /^rgba?\(\s*([+-]?\d+)\s*,\s*([+-]?\d+)\s*,\s*([+-]?\d+)\s*(?:,\s*([+-]?[\d\.]+)\s*)?\)$/, - per = /^rgba?\(\s*([+-]?[\d\.]+)\%\s*,\s*([+-]?[\d\.]+)\%\s*,\s*([+-]?[\d\.]+)\%\s*(?:,\s*([+-]?[\d\.]+)\s*)?\)$/, - keyword = /(\w+)/; - - var rgb = [0, 0, 0], - a = 1, - match = string.match(abbr); - if (match) { - match = match[1]; - for (var i = 0; i < rgb.length; i++) { - rgb[i] = parseInt(match[i] + match[i], 16); - } - } - else if (match = string.match(hex)) { - match = match[1]; - for (var i = 0; i < rgb.length; i++) { - rgb[i] = parseInt(match.slice(i * 2, i * 2 + 2), 16); - } - } - else if (match = string.match(rgba)) { - for (var i = 0; i < rgb.length; i++) { - rgb[i] = parseInt(match[i + 1]); - } - a = parseFloat(match[4]); - } - else if (match = string.match(per)) { - for (var i = 0; i < rgb.length; i++) { - rgb[i] = Math.round(parseFloat(match[i + 1]) * 2.55); - } - a = parseFloat(match[4]); - } - else if (match = string.match(keyword)) { - if (match[1] == "transparent") { - return [0, 0, 0, 0]; - } - rgb = colorNames[match[1]]; - if (!rgb) { - return; - } - } - - for (var i = 0; i < rgb.length; i++) { - rgb[i] = scale(rgb[i], 0, 255); - } - if (!a && a != 0) { - a = 1; - } - else { - a = scale(a, 0, 1); - } - rgb[3] = a; - return rgb; -} - -function getHsla(string) { - if (!string) { - return; - } - var hsl = /^hsla?\(\s*([+-]?\d+)(?:deg)?\s*,\s*([+-]?[\d\.]+)%\s*,\s*([+-]?[\d\.]+)%\s*(?:,\s*([+-]?[\d\.]+)\s*)?\)/; - var match = string.match(hsl); - if (match) { - var alpha = parseFloat(match[4]); - var h = scale(parseInt(match[1]), 0, 360), - s = scale(parseFloat(match[2]), 0, 100), - l = scale(parseFloat(match[3]), 0, 100), - a = scale(isNaN(alpha) ? 1 : alpha, 0, 1); - return [h, s, l, a]; - } -} - -function getHwb(string) { - if (!string) { - return; - } - var hwb = /^hwb\(\s*([+-]?\d+)(?:deg)?\s*,\s*([+-]?[\d\.]+)%\s*,\s*([+-]?[\d\.]+)%\s*(?:,\s*([+-]?[\d\.]+)\s*)?\)/; - var match = string.match(hwb); - if (match) { - var alpha = parseFloat(match[4]); - var h = scale(parseInt(match[1]), 0, 360), - w = scale(parseFloat(match[2]), 0, 100), - b = scale(parseFloat(match[3]), 0, 100), - a = scale(isNaN(alpha) ? 1 : alpha, 0, 1); - return [h, w, b, a]; - } -} - -function getRgb(string) { - var rgba = getRgba(string); - return rgba && rgba.slice(0, 3); -} - -function getHsl(string) { - var hsla = getHsla(string); - return hsla && hsla.slice(0, 3); -} - -function getAlpha(string) { - var vals = getRgba(string); - if (vals) { - return vals[3]; - } - else if (vals = getHsla(string)) { - return vals[3]; - } - else if (vals = getHwb(string)) { - return vals[3]; - } -} - -// generators -function hexString(rgb) { - return "#" + hexDouble(rgb[0]) + hexDouble(rgb[1]) - + hexDouble(rgb[2]); -} - -function rgbString(rgba, alpha) { - if (alpha < 1 || (rgba[3] && rgba[3] < 1)) { - return rgbaString(rgba, alpha); - } - return "rgb(" + rgba[0] + ", " + rgba[1] + ", " + rgba[2] + ")"; -} - -function rgbaString(rgba, alpha) { - if (alpha === undefined) { - alpha = (rgba[3] !== undefined ? rgba[3] : 1); - } - return "rgba(" + rgba[0] + ", " + rgba[1] + ", " + rgba[2] - + ", " + alpha + ")"; -} - -function percentString(rgba, alpha) { - if (alpha < 1 || (rgba[3] && rgba[3] < 1)) { - return percentaString(rgba, alpha); - } - var r = Math.round(rgba[0]/255 * 100), - g = Math.round(rgba[1]/255 * 100), - b = Math.round(rgba[2]/255 * 100); - - return "rgb(" + r + "%, " + g + "%, " + b + "%)"; -} - -function percentaString(rgba, alpha) { - var r = Math.round(rgba[0]/255 * 100), - g = Math.round(rgba[1]/255 * 100), - b = Math.round(rgba[2]/255 * 100); - return "rgba(" + r + "%, " + g + "%, " + b + "%, " + (alpha || rgba[3] || 1) + ")"; -} - -function hslString(hsla, alpha) { - if (alpha < 1 || (hsla[3] && hsla[3] < 1)) { - return hslaString(hsla, alpha); - } - return "hsl(" + hsla[0] + ", " + hsla[1] + "%, " + hsla[2] + "%)"; -} - -function hslaString(hsla, alpha) { - if (alpha === undefined) { - alpha = (hsla[3] !== undefined ? hsla[3] : 1); - } - return "hsla(" + hsla[0] + ", " + hsla[1] + "%, " + hsla[2] + "%, " - + alpha + ")"; -} - -// hwb is a bit different than rgb(a) & hsl(a) since there is no alpha specific syntax -// (hwb have alpha optional & 1 is default value) -function hwbString(hwb, alpha) { - if (alpha === undefined) { - alpha = (hwb[3] !== undefined ? hwb[3] : 1); - } - return "hwb(" + hwb[0] + ", " + hwb[1] + "%, " + hwb[2] + "%" - + (alpha !== undefined && alpha !== 1 ? ", " + alpha : "") + ")"; -} - -function keyword(rgb) { - return reverseNames[rgb.slice(0, 3)]; -} - -// helpers -function scale(num, min, max) { - return Math.min(Math.max(min, num), max); -} - -function hexDouble(num) { - var str = num.toString(16).toUpperCase(); - return (str.length < 2) ? "0" + str : str; -} - - -//create a list of reverse color names -var reverseNames = {}; -for (var name in colorNames) { - reverseNames[colorNames[name]] = name; -} - -},{"color-name":5}],5:[function(require,module,exports){ +},{"./conversions":4}],6:[function(require,module,exports){ module.exports = { "aliceblue": [240, 248, 255], "antiquewhite": [250, 235, 215], "aqua": [0, 255, 255], "aquamarine": [127, 255, 212], @@ -1174,8600 +1593,8215 @@ "white": [255, 255, 255], "whitesmoke": [245, 245, 245], "yellow": [255, 255, 0], "yellowgreen": [154, 205, 50] }; -},{}],6:[function(require,module,exports){ -/* MIT license */ +},{}],7:[function(require,module,exports){ +var Chart = require('./core/core.js')(); + +require('./core/core.helpers')(Chart); +require('./core/core.element')(Chart); +require('./core/core.animation')(Chart); +require('./core/core.controller')(Chart); +require('./core/core.datasetController')(Chart); +require('./core/core.layoutService')(Chart); +require('./core/core.legend')(Chart); +require('./core/core.plugin.js')(Chart); +require('./core/core.scale')(Chart); +require('./core/core.scaleService')(Chart); +require('./core/core.title')(Chart); +require('./core/core.tooltip')(Chart); + +require('./controllers/controller.bar')(Chart); +require('./controllers/controller.bubble')(Chart); +require('./controllers/controller.doughnut')(Chart); +require('./controllers/controller.line')(Chart); +require('./controllers/controller.polarArea')(Chart); +require('./controllers/controller.radar')(Chart); + +require('./scales/scale.category')(Chart); +require('./scales/scale.linear')(Chart); +require('./scales/scale.logarithmic')(Chart); +require('./scales/scale.radialLinear')(Chart); +require('./scales/scale.time')(Chart); + +require('./elements/element.arc')(Chart); +require('./elements/element.line')(Chart); +require('./elements/element.point')(Chart); +require('./elements/element.rectangle')(Chart); + +require('./charts/Chart.Bar')(Chart); +require('./charts/Chart.Bubble')(Chart); +require('./charts/Chart.Doughnut')(Chart); +require('./charts/Chart.Line')(Chart); +require('./charts/Chart.PolarArea')(Chart); +require('./charts/Chart.Radar')(Chart); +require('./charts/Chart.Scatter')(Chart); + +window.Chart = module.exports = Chart; -var convert = require("color-convert"), - string = require("color-string"); - -var Color = function(obj) { - if (obj instanceof Color) return obj; - if (!(this instanceof Color)) return new Color(obj); - - this.values = { - rgb: [0, 0, 0], - hsl: [0, 0, 0], - hsv: [0, 0, 0], - hwb: [0, 0, 0], - cmyk: [0, 0, 0, 0], - alpha: 1 - } - - // parse Color() argument - if (typeof obj == "string") { - var vals = string.getRgba(obj); - if (vals) { - this.setValues("rgb", vals); - } else if (vals = string.getHsla(obj)) { - this.setValues("hsl", vals); - } else if (vals = string.getHwb(obj)) { - this.setValues("hwb", vals); - } else { - throw new Error("Unable to parse color from string \"" + obj + "\""); - } - } else if (typeof obj == "object") { - var vals = obj; - if (vals["r"] !== undefined || vals["red"] !== undefined) { - this.setValues("rgb", vals) - } else if (vals["l"] !== undefined || vals["lightness"] !== undefined) { - this.setValues("hsl", vals) - } else if (vals["v"] !== undefined || vals["value"] !== undefined) { - this.setValues("hsv", vals) - } else if (vals["w"] !== undefined || vals["whiteness"] !== undefined) { - this.setValues("hwb", vals) - } else if (vals["c"] !== undefined || vals["cyan"] !== undefined) { - this.setValues("cmyk", vals) - } else { - throw new Error("Unable to parse color from object " + JSON.stringify(obj)); - } - } -} - -Color.prototype = { - rgb: function(vals) { - return this.setSpace("rgb", arguments); - }, - hsl: function(vals) { - return this.setSpace("hsl", arguments); - }, - hsv: function(vals) { - return this.setSpace("hsv", arguments); - }, - hwb: function(vals) { - return this.setSpace("hwb", arguments); - }, - cmyk: function(vals) { - return this.setSpace("cmyk", arguments); - }, - - rgbArray: function() { - return this.values.rgb; - }, - hslArray: function() { - return this.values.hsl; - }, - hsvArray: function() { - return this.values.hsv; - }, - hwbArray: function() { - if (this.values.alpha !== 1) { - return this.values.hwb.concat([this.values.alpha]) - } - return this.values.hwb; - }, - cmykArray: function() { - return this.values.cmyk; - }, - rgbaArray: function() { - var rgb = this.values.rgb; - return rgb.concat([this.values.alpha]); - }, - hslaArray: function() { - var hsl = this.values.hsl; - return hsl.concat([this.values.alpha]); - }, - alpha: function(val) { - if (val === undefined) { - return this.values.alpha; - } - this.setValues("alpha", val); - return this; - }, - - red: function(val) { - return this.setChannel("rgb", 0, val); - }, - green: function(val) { - return this.setChannel("rgb", 1, val); - }, - blue: function(val) { - return this.setChannel("rgb", 2, val); - }, - hue: function(val) { - return this.setChannel("hsl", 0, val); - }, - saturation: function(val) { - return this.setChannel("hsl", 1, val); - }, - lightness: function(val) { - return this.setChannel("hsl", 2, val); - }, - saturationv: function(val) { - return this.setChannel("hsv", 1, val); - }, - whiteness: function(val) { - return this.setChannel("hwb", 1, val); - }, - blackness: function(val) { - return this.setChannel("hwb", 2, val); - }, - value: function(val) { - return this.setChannel("hsv", 2, val); - }, - cyan: function(val) { - return this.setChannel("cmyk", 0, val); - }, - magenta: function(val) { - return this.setChannel("cmyk", 1, val); - }, - yellow: function(val) { - return this.setChannel("cmyk", 2, val); - }, - black: function(val) { - return this.setChannel("cmyk", 3, val); - }, - - hexString: function() { - return string.hexString(this.values.rgb); - }, - rgbString: function() { - return string.rgbString(this.values.rgb, this.values.alpha); - }, - rgbaString: function() { - return string.rgbaString(this.values.rgb, this.values.alpha); - }, - percentString: function() { - return string.percentString(this.values.rgb, this.values.alpha); - }, - hslString: function() { - return string.hslString(this.values.hsl, this.values.alpha); - }, - hslaString: function() { - return string.hslaString(this.values.hsl, this.values.alpha); - }, - hwbString: function() { - return string.hwbString(this.values.hwb, this.values.alpha); - }, - keyword: function() { - return string.keyword(this.values.rgb, this.values.alpha); - }, - - rgbNumber: function() { - return (this.values.rgb[0] << 16) | (this.values.rgb[1] << 8) | this.values.rgb[2]; - }, - - luminosity: function() { - // http://www.w3.org/TR/WCAG20/#relativeluminancedef - var rgb = this.values.rgb; - var lum = []; - for (var i = 0; i < rgb.length; i++) { - var chan = rgb[i] / 255; - lum[i] = (chan <= 0.03928) ? chan / 12.92 : Math.pow(((chan + 0.055) / 1.055), 2.4) - } - return 0.2126 * lum[0] + 0.7152 * lum[1] + 0.0722 * lum[2]; - }, - - contrast: function(color2) { - // http://www.w3.org/TR/WCAG20/#contrast-ratiodef - var lum1 = this.luminosity(); - var lum2 = color2.luminosity(); - if (lum1 > lum2) { - return (lum1 + 0.05) / (lum2 + 0.05) - }; - return (lum2 + 0.05) / (lum1 + 0.05); - }, - - level: function(color2) { - var contrastRatio = this.contrast(color2); - return (contrastRatio >= 7.1) ? 'AAA' : (contrastRatio >= 4.5) ? 'AA' : ''; - }, - - dark: function() { - // YIQ equation from http://24ways.org/2010/calculating-color-contrast - var rgb = this.values.rgb, - yiq = (rgb[0] * 299 + rgb[1] * 587 + rgb[2] * 114) / 1000; - return yiq < 128; - }, - - light: function() { - return !this.dark(); - }, - - negate: function() { - var rgb = [] - for (var i = 0; i < 3; i++) { - rgb[i] = 255 - this.values.rgb[i]; - } - this.setValues("rgb", rgb); - return this; - }, - - lighten: function(ratio) { - this.values.hsl[2] += this.values.hsl[2] * ratio; - this.setValues("hsl", this.values.hsl); - return this; - }, - - darken: function(ratio) { - this.values.hsl[2] -= this.values.hsl[2] * ratio; - this.setValues("hsl", this.values.hsl); - return this; - }, - - saturate: function(ratio) { - this.values.hsl[1] += this.values.hsl[1] * ratio; - this.setValues("hsl", this.values.hsl); - return this; - }, - - desaturate: function(ratio) { - this.values.hsl[1] -= this.values.hsl[1] * ratio; - this.setValues("hsl", this.values.hsl); - return this; - }, - - whiten: function(ratio) { - this.values.hwb[1] += this.values.hwb[1] * ratio; - this.setValues("hwb", this.values.hwb); - return this; - }, - - blacken: function(ratio) { - this.values.hwb[2] += this.values.hwb[2] * ratio; - this.setValues("hwb", this.values.hwb); - return this; - }, - - greyscale: function() { - var rgb = this.values.rgb; - // http://en.wikipedia.org/wiki/Grayscale#Converting_color_to_grayscale - var val = rgb[0] * 0.3 + rgb[1] * 0.59 + rgb[2] * 0.11; - this.setValues("rgb", [val, val, val]); - return this; - }, - - clearer: function(ratio) { - this.setValues("alpha", this.values.alpha - (this.values.alpha * ratio)); - return this; - }, - - opaquer: function(ratio) { - this.setValues("alpha", this.values.alpha + (this.values.alpha * ratio)); - return this; - }, - - rotate: function(degrees) { - var hue = this.values.hsl[0]; - hue = (hue + degrees) % 360; - hue = hue < 0 ? 360 + hue : hue; - this.values.hsl[0] = hue; - this.setValues("hsl", this.values.hsl); - return this; - }, - - mix: function(color2, weight) { - weight = 1 - (weight == null ? 0.5 : weight); - - // algorithm from Sass's mix(). Ratio of first color in mix is - // determined by the alphas of both colors and the weight - var t1 = weight * 2 - 1, - d = this.alpha() - color2.alpha(); - - var weight1 = (((t1 * d == -1) ? t1 : (t1 + d) / (1 + t1 * d)) + 1) / 2; - var weight2 = 1 - weight1; - - var rgb = this.rgbArray(); - var rgb2 = color2.rgbArray(); - - for (var i = 0; i < rgb.length; i++) { - rgb[i] = rgb[i] * weight1 + rgb2[i] * weight2; - } - this.setValues("rgb", rgb); - - var alpha = this.alpha() * weight + color2.alpha() * (1 - weight); - this.setValues("alpha", alpha); - - return this; - }, - - toJSON: function() { - return this.rgb(); - }, - - clone: function() { - return new Color(this.rgb()); - } -} - - -Color.prototype.getValues = function(space) { - var vals = {}; - for (var i = 0; i < space.length; i++) { - vals[space.charAt(i)] = this.values[space][i]; - } - if (this.values.alpha != 1) { - vals["a"] = this.values.alpha; - } - // {r: 255, g: 255, b: 255, a: 0.4} - return vals; -} - -Color.prototype.setValues = function(space, vals) { - var spaces = { - "rgb": ["red", "green", "blue"], - "hsl": ["hue", "saturation", "lightness"], - "hsv": ["hue", "saturation", "value"], - "hwb": ["hue", "whiteness", "blackness"], - "cmyk": ["cyan", "magenta", "yellow", "black"] - }; - - var maxes = { - "rgb": [255, 255, 255], - "hsl": [360, 100, 100], - "hsv": [360, 100, 100], - "hwb": [360, 100, 100], - "cmyk": [100, 100, 100, 100] - }; - - var alpha = 1; - if (space == "alpha") { - alpha = vals; - } else if (vals.length) { - // [10, 10, 10] - this.values[space] = vals.slice(0, space.length); - alpha = vals[space.length]; - } else if (vals[space.charAt(0)] !== undefined) { - // {r: 10, g: 10, b: 10} - for (var i = 0; i < space.length; i++) { - this.values[space][i] = vals[space.charAt(i)]; - } - alpha = vals.a; - } else if (vals[spaces[space][0]] !== undefined) { - // {red: 10, green: 10, blue: 10} - var chans = spaces[space]; - for (var i = 0; i < space.length; i++) { - this.values[space][i] = vals[chans[i]]; - } - alpha = vals.alpha; - } - this.values.alpha = Math.max(0, Math.min(1, (alpha !== undefined ? alpha : this.values.alpha))); - if (space == "alpha") { - return; - } - - // cap values of the space prior converting all values - for (var i = 0; i < space.length; i++) { - var capped = Math.max(0, Math.min(maxes[space][i], this.values[space][i])); - this.values[space][i] = Math.round(capped); - } - - // convert to all the other color spaces - for (var sname in spaces) { - if (sname != space) { - this.values[sname] = convert[space][sname](this.values[space]) - } - - // cap values - for (var i = 0; i < sname.length; i++) { - var capped = Math.max(0, Math.min(maxes[sname][i], this.values[sname][i])); - this.values[sname][i] = Math.round(capped); - } - } - return true; -} - -Color.prototype.setSpace = function(space, args) { - var vals = args[0]; - if (vals === undefined) { - // color.rgb() - return this.getValues(space); - } - // color.rgb(10, 10, 10) - if (typeof vals == "number") { - vals = Array.prototype.slice.call(args); - } - this.setValues(space, vals); - return this; -} - -Color.prototype.setChannel = function(space, index, val) { - if (val === undefined) { - // color.red() - return this.values[space][index]; - } - // color.red(100) - this.values[space][index] = val; - this.setValues(space, this.values[space]); - return this; -} - -window.Color = module.exports = Color - -},{"color-convert":3,"color-string":4}],7:[function(require,module,exports){ -var Chart = require('./core/core.js')(); - -require('./core/core.helpers')(Chart); -require('./core/core.element')(Chart); -require('./core/core.animation')(Chart); -require('./core/core.controller')(Chart); -require('./core/core.datasetController')(Chart); -require('./core/core.layoutService')(Chart); -require('./core/core.legend')(Chart); -require('./core/core.plugin.js')(Chart); -require('./core/core.scale')(Chart); -require('./core/core.scaleService')(Chart); -require('./core/core.title')(Chart); -require('./core/core.tooltip')(Chart); - -require('./controllers/controller.bar')(Chart); -require('./controllers/controller.bubble')(Chart); -require('./controllers/controller.doughnut')(Chart); -require('./controllers/controller.line')(Chart); -require('./controllers/controller.polarArea')(Chart); -require('./controllers/controller.radar')(Chart); - -require('./scales/scale.category')(Chart); -require('./scales/scale.linear')(Chart); -require('./scales/scale.logarithmic')(Chart); -require('./scales/scale.radialLinear')(Chart); -require('./scales/scale.time')(Chart); - -require('./elements/element.arc')(Chart); -require('./elements/element.line')(Chart); -require('./elements/element.point')(Chart); -require('./elements/element.rectangle')(Chart); - -require('./charts/Chart.Bar')(Chart); -require('./charts/Chart.Bubble')(Chart); -require('./charts/Chart.Doughnut')(Chart); -require('./charts/Chart.Line')(Chart); -require('./charts/Chart.PolarArea')(Chart); -require('./charts/Chart.Radar')(Chart); -require('./charts/Chart.Scatter')(Chart); - -window.Chart = module.exports = Chart; - },{"./charts/Chart.Bar":8,"./charts/Chart.Bubble":9,"./charts/Chart.Doughnut":10,"./charts/Chart.Line":11,"./charts/Chart.PolarArea":12,"./charts/Chart.Radar":13,"./charts/Chart.Scatter":14,"./controllers/controller.bar":15,"./controllers/controller.bubble":16,"./controllers/controller.doughnut":17,"./controllers/controller.line":18,"./controllers/controller.polarArea":19,"./controllers/controller.radar":20,"./core/core.animation":21,"./core/core.controller":22,"./core/core.datasetController":23,"./core/core.element":24,"./core/core.helpers":25,"./core/core.js":26,"./core/core.layoutService":27,"./core/core.legend":28,"./core/core.plugin.js":29,"./core/core.scale":30,"./core/core.scaleService":31,"./core/core.title":32,"./core/core.tooltip":33,"./elements/element.arc":34,"./elements/element.line":35,"./elements/element.point":36,"./elements/element.rectangle":37,"./scales/scale.category":38,"./scales/scale.linear":39,"./scales/scale.logarithmic":40,"./scales/scale.radialLinear":41,"./scales/scale.time":42}],8:[function(require,module,exports){ -"use strict"; - -module.exports = function(Chart) { - - Chart.Bar = function(context, config) { - config.type = 'bar'; - - return new Chart(context, config); - }; - +"use strict"; + +module.exports = function(Chart) { + + Chart.Bar = function(context, config) { + config.type = 'bar'; + + return new Chart(context, config); + }; + }; },{}],9:[function(require,module,exports){ -"use strict"; - -module.exports = function(Chart) { - - Chart.Bubble = function(context, config) { - config.type = 'bubble'; - return new Chart(context, config); - }; - +"use strict"; + +module.exports = function(Chart) { + + Chart.Bubble = function(context, config) { + config.type = 'bubble'; + return new Chart(context, config); + }; + }; },{}],10:[function(require,module,exports){ -"use strict"; - -module.exports = function(Chart) { - - Chart.Doughnut = function(context, config) { - config.type = 'doughnut'; - - return new Chart(context, config); - }; - +"use strict"; + +module.exports = function(Chart) { + + Chart.Doughnut = function(context, config) { + config.type = 'doughnut'; + + return new Chart(context, config); + }; + }; },{}],11:[function(require,module,exports){ -"use strict"; - -module.exports = function(Chart) { - - Chart.Line = function(context, config) { - config.type = 'line'; - - return new Chart(context, config); - }; - +"use strict"; + +module.exports = function(Chart) { + + Chart.Line = function(context, config) { + config.type = 'line'; + + return new Chart(context, config); + }; + }; },{}],12:[function(require,module,exports){ -"use strict"; - -module.exports = function(Chart) { - - Chart.PolarArea = function(context, config) { - config.type = 'polarArea'; - - return new Chart(context, config); - }; - +"use strict"; + +module.exports = function(Chart) { + + Chart.PolarArea = function(context, config) { + config.type = 'polarArea'; + + return new Chart(context, config); + }; + }; },{}],13:[function(require,module,exports){ -"use strict"; +"use strict"; + +module.exports = function(Chart) { + + var helpers = Chart.helpers; + + var defaultConfig = { + aspectRatio: 1 + }; + + Chart.Radar = function(context, config) { + config.options = helpers.configMerge(defaultConfig, config.options); + config.type = 'radar'; + + return new Chart(context, config); + }; + +}; -module.exports = function(Chart) { - - var helpers = Chart.helpers; - - var defaultConfig = { - aspectRatio: 1 - }; - - Chart.Radar = function(context, config) { - config.options = helpers.configMerge(defaultConfig, config.options); - config.type = 'radar'; - - return new Chart(context, config); - }; - -}; - },{}],14:[function(require,module,exports){ -"use strict"; - -module.exports = function(Chart) { - - var defaultConfig = { - hover: { - mode: 'single' - }, - - scales: { - xAxes: [{ - type: "linear", // scatter should not use a category axis - position: "bottom", - id: "x-axis-1" // need an ID so datasets can reference the scale - }], - yAxes: [{ - type: "linear", - position: "left", - id: "y-axis-1" - }] - }, - - tooltips: { - callbacks: { - title: function(tooltipItems, data) { - // Title doesn't make sense for scatter since we format the data as a point - return ''; - }, - label: function(tooltipItem, data) { - return '(' + tooltipItem.xLabel + ', ' + tooltipItem.yLabel + ')'; - } - } - } - }; - - // Register the default config for this type - Chart.defaults.scatter = defaultConfig; - - // Scatter charts use line controllers - Chart.controllers.scatter = Chart.controllers.line; - - Chart.Scatter = function(context, config) { - config.type = 'scatter'; - return new Chart(context, config); - }; - +"use strict"; + +module.exports = function(Chart) { + + var defaultConfig = { + hover: { + mode: 'single' + }, + + scales: { + xAxes: [{ + type: "linear", // scatter should not use a category axis + position: "bottom", + id: "x-axis-1" // need an ID so datasets can reference the scale + }], + yAxes: [{ + type: "linear", + position: "left", + id: "y-axis-1" + }] + }, + + tooltips: { + callbacks: { + title: function(tooltipItems, data) { + // Title doesn't make sense for scatter since we format the data as a point + return ''; + }, + label: function(tooltipItem, data) { + return '(' + tooltipItem.xLabel + ', ' + tooltipItem.yLabel + ')'; + } + } + } + }; + + // Register the default config for this type + Chart.defaults.scatter = defaultConfig; + + // Scatter charts use line controllers + Chart.controllers.scatter = Chart.controllers.line; + + Chart.Scatter = function(context, config) { + config.type = 'scatter'; + return new Chart(context, config); + }; + }; },{}],15:[function(require,module,exports){ -"use strict"; - -module.exports = function(Chart) { - - var helpers = Chart.helpers; - - Chart.defaults.bar = { - hover: { - mode: "label" - }, - - scales: { - xAxes: [{ - type: "category", - - // Specific to Bar Controller - categoryPercentage: 0.8, - barPercentage: 0.9, - - // grid line settings - gridLines: { - offsetGridLines: true - } - }], - yAxes: [{ - type: "linear" - }] - } - }; - - Chart.controllers.bar = Chart.DatasetController.extend({ - initialize: function(chart, datasetIndex) { - Chart.DatasetController.prototype.initialize.call(this, chart, datasetIndex); - - // Use this to indicate that this is a bar dataset. - this.getMeta().bar = true; - }, - // Get the number of datasets that display bars. We use this to correctly calculate the bar width - getBarCount: function getBarCount() { - var barCount = 0; - helpers.each(this.chart.data.datasets, function(dataset, datasetIndex) { - var meta = this.chart.getDatasetMeta(datasetIndex); - if (meta.bar && this.chart.isDatasetVisible(datasetIndex)) { - ++barCount; - } - }, this); - return barCount; - }, - - addElements: function() { - var meta = this.getMeta(); - helpers.each(this.getDataset().data, function(value, index) { - meta.data[index] = meta.data[index] || new Chart.elements.Rectangle({ - _chart: this.chart.chart, - _datasetIndex: this.index, - _index: index - }); - }, this); - }, - - addElementAndReset: function(index) { - var rectangle = new Chart.elements.Rectangle({ - _chart: this.chart.chart, - _datasetIndex: this.index, - _index: index - }); - - var numBars = this.getBarCount(); - - // Add to the points array and reset it - this.getMeta().data.splice(index, 0, rectangle); - this.updateElement(rectangle, index, true, numBars); - }, - - update: function update(reset) { - var numBars = this.getBarCount(); - - helpers.each(this.getMeta().data, function(rectangle, index) { - this.updateElement(rectangle, index, reset, numBars); - }, this); - }, - - updateElement: function updateElement(rectangle, index, reset, numBars) { - var meta = this.getMeta(); - var xScale = this.getScaleForId(meta.xAxisID); - var yScale = this.getScaleForId(meta.yAxisID); - - var yScalePoint; - - if (yScale.min < 0 && yScale.max < 0) { - // all less than 0. use the top - yScalePoint = yScale.getPixelForValue(yScale.max); - } else if (yScale.min > 0 && yScale.max > 0) { - yScalePoint = yScale.getPixelForValue(yScale.min); - } else { - yScalePoint = yScale.getPixelForValue(0); - } - - helpers.extend(rectangle, { - // Utility - _chart: this.chart.chart, - _xScale: xScale, - _yScale: yScale, - _datasetIndex: this.index, - _index: index, - - - // Desired view properties - _model: { - x: this.calculateBarX(index, this.index), - y: reset ? yScalePoint : this.calculateBarY(index, this.index), - - // Tooltip - label: this.chart.data.labels[index], - datasetLabel: this.getDataset().label, - - // Appearance - base: reset ? yScalePoint : this.calculateBarBase(this.index, index), - width: this.calculateBarWidth(numBars), - backgroundColor: rectangle.custom && rectangle.custom.backgroundColor ? rectangle.custom.backgroundColor : helpers.getValueAtIndexOrDefault(this.getDataset().backgroundColor, index, this.chart.options.elements.rectangle.backgroundColor), - borderSkipped: rectangle.custom && rectangle.custom.borderSkipped ? rectangle.custom.borderSkipped : this.chart.options.elements.rectangle.borderSkipped, - borderColor: rectangle.custom && rectangle.custom.borderColor ? rectangle.custom.borderColor : helpers.getValueAtIndexOrDefault(this.getDataset().borderColor, index, this.chart.options.elements.rectangle.borderColor), - borderWidth: rectangle.custom && rectangle.custom.borderWidth ? rectangle.custom.borderWidth : helpers.getValueAtIndexOrDefault(this.getDataset().borderWidth, index, this.chart.options.elements.rectangle.borderWidth) - } - }); - rectangle.pivot(); - }, - - calculateBarBase: function(datasetIndex, index) { - var meta = this.getMeta(); - var xScale = this.getScaleForId(meta.xAxisID); - var yScale = this.getScaleForId(meta.yAxisID); - - var base = 0; - - if (yScale.options.stacked) { - - var value = this.chart.data.datasets[datasetIndex].data[index]; - - if (value < 0) { - for (var i = 0; i < datasetIndex; i++) { - var negDS = this.chart.data.datasets[i]; - var negDSMeta = this.chart.getDatasetMeta(i); - if (negDSMeta.bar && negDSMeta.yAxisID === yScale.id && this.chart.isDatasetVisible(i)) { - base += negDS.data[index] < 0 ? negDS.data[index] : 0; - } - } - } else { - for (var j = 0; j < datasetIndex; j++) { - var posDS = this.chart.data.datasets[j]; - var posDSMeta = this.chart.getDatasetMeta(j); - if (posDSMeta.bar && posDSMeta.yAxisID === yScale.id && this.chart.isDatasetVisible(j)) { - base += posDS.data[index] > 0 ? posDS.data[index] : 0; - } - } - } - - return yScale.getPixelForValue(base); - } - - base = yScale.getPixelForValue(yScale.min); - - if (yScale.beginAtZero || ((yScale.min <= 0 && yScale.max >= 0) || (yScale.min >= 0 && yScale.max <= 0))) { - base = yScale.getPixelForValue(0, 0); - //base += yScale.options.gridLines.lineWidth; - } else if (yScale.min < 0 && yScale.max < 0) { - // All values are negative. Use the top as the base - base = yScale.getPixelForValue(yScale.max); - } - - return base; - - }, - - getRuler: function() { - var meta = this.getMeta(); - var xScale = this.getScaleForId(meta.xAxisID); - var yScale = this.getScaleForId(meta.yAxisID); - var datasetCount = this.getBarCount(); - - var tickWidth = (function() { - var min = xScale.getPixelForTick(1) - xScale.getPixelForTick(0); - for (var i = 2; i < this.getDataset().data.length; i++) { - min = Math.min(xScale.getPixelForTick(i) - xScale.getPixelForTick(i - 1), min); - } - return min; - }).call(this); - var categoryWidth = tickWidth * xScale.options.categoryPercentage; - var categorySpacing = (tickWidth - (tickWidth * xScale.options.categoryPercentage)) / 2; - var fullBarWidth = categoryWidth / datasetCount; - - if (xScale.ticks.length !== this.chart.data.labels.length) { - var perc = xScale.ticks.length / this.chart.data.labels.length; - fullBarWidth = fullBarWidth * perc; - } - - var barWidth = fullBarWidth * xScale.options.barPercentage; - var barSpacing = fullBarWidth - (fullBarWidth * xScale.options.barPercentage); - - return { - datasetCount: datasetCount, - tickWidth: tickWidth, - categoryWidth: categoryWidth, - categorySpacing: categorySpacing, - fullBarWidth: fullBarWidth, - barWidth: barWidth, - barSpacing: barSpacing - }; - }, - - calculateBarWidth: function() { - var xScale = this.getScaleForId(this.getMeta().xAxisID); - var ruler = this.getRuler(); - return xScale.options.stacked ? ruler.categoryWidth : ruler.barWidth; - }, - - // Get bar index from the given dataset index accounting for the fact that not all bars are visible - getBarIndex: function(datasetIndex) { - var barIndex = 0; - var meta, j; - - for (j = 0; j < datasetIndex; ++j) { - meta = this.chart.getDatasetMeta(j); - if (meta.bar && this.chart.isDatasetVisible(j)) { - ++barIndex; - } - } - - return barIndex; - }, - - calculateBarX: function(index, datasetIndex) { - var meta = this.getMeta(); - var yScale = this.getScaleForId(meta.yAxisID); - var xScale = this.getScaleForId(meta.xAxisID); - var barIndex = this.getBarIndex(datasetIndex); - - var ruler = this.getRuler(); - var leftTick = xScale.getPixelForValue(null, index, datasetIndex, this.chart.isCombo); - leftTick -= this.chart.isCombo ? (ruler.tickWidth / 2) : 0; - - if (xScale.options.stacked) { - return leftTick + (ruler.categoryWidth / 2) + ruler.categorySpacing; - } - - return leftTick + - (ruler.barWidth / 2) + - ruler.categorySpacing + - (ruler.barWidth * barIndex) + - (ruler.barSpacing / 2) + - (ruler.barSpacing * barIndex); - }, - - calculateBarY: function(index, datasetIndex) { - var meta = this.getMeta(); - var xScale = this.getScaleForId(meta.xAxisID); - var yScale = this.getScaleForId(meta.yAxisID); - - var value = this.getDataset().data[index]; - - if (yScale.options.stacked) { - - var sumPos = 0, - sumNeg = 0; - - for (var i = 0; i < datasetIndex; i++) { - var ds = this.chart.data.datasets[i]; - var dsMeta = this.chart.getDatasetMeta(i); - if (dsMeta.bar && dsMeta.yAxisID === yScale.id && this.chart.isDatasetVisible(i)) { - if (ds.data[index] < 0) { - sumNeg += ds.data[index] || 0; - } else { - sumPos += ds.data[index] || 0; - } - } - } - - if (value < 0) { - return yScale.getPixelForValue(sumNeg + value); - } else { - return yScale.getPixelForValue(sumPos + value); - } - } - - return yScale.getPixelForValue(value); - }, - - draw: function(ease) { - var easingDecimal = ease || 1; - helpers.each(this.getMeta().data, function(rectangle, index) { - var d = this.getDataset().data[index]; - if (d !== null && d !== undefined && !isNaN(d)) { - rectangle.transition(easingDecimal).draw(); - } - }, this); - }, - - setHoverStyle: function(rectangle) { - var dataset = this.chart.data.datasets[rectangle._datasetIndex]; - var index = rectangle._index; - - rectangle._model.backgroundColor = rectangle.custom && rectangle.custom.hoverBackgroundColor ? rectangle.custom.hoverBackgroundColor : helpers.getValueAtIndexOrDefault(dataset.hoverBackgroundColor, index, helpers.color(rectangle._model.backgroundColor).saturate(0.5).darken(0.1).rgbString()); - rectangle._model.borderColor = rectangle.custom && rectangle.custom.hoverBorderColor ? rectangle.custom.hoverBorderColor : helpers.getValueAtIndexOrDefault(dataset.hoverBorderColor, index, helpers.color(rectangle._model.borderColor).saturate(0.5).darken(0.1).rgbString()); - rectangle._model.borderWidth = rectangle.custom && rectangle.custom.hoverBorderWidth ? rectangle.custom.hoverBorderWidth : helpers.getValueAtIndexOrDefault(dataset.hoverBorderWidth, index, rectangle._model.borderWidth); - }, - - removeHoverStyle: function(rectangle) { - var dataset = this.chart.data.datasets[rectangle._datasetIndex]; - var index = rectangle._index; - - rectangle._model.backgroundColor = rectangle.custom && rectangle.custom.backgroundColor ? rectangle.custom.backgroundColor : helpers.getValueAtIndexOrDefault(this.getDataset().backgroundColor, index, this.chart.options.elements.rectangle.backgroundColor); - rectangle._model.borderColor = rectangle.custom && rectangle.custom.borderColor ? rectangle.custom.borderColor : helpers.getValueAtIndexOrDefault(this.getDataset().borderColor, index, this.chart.options.elements.rectangle.borderColor); - rectangle._model.borderWidth = rectangle.custom && rectangle.custom.borderWidth ? rectangle.custom.borderWidth : helpers.getValueAtIndexOrDefault(this.getDataset().borderWidth, index, this.chart.options.elements.rectangle.borderWidth); - } - - }); - - - // including horizontalBar in the bar file, instead of a file of its own - // it extends bar (like pie extends doughnut) +"use strict"; + +module.exports = function(Chart) { + + var helpers = Chart.helpers; + + Chart.defaults.bar = { + hover: { + mode: "label" + }, + + scales: { + xAxes: [{ + type: "category", + + // Specific to Bar Controller + categoryPercentage: 0.8, + barPercentage: 0.9, + + // grid line settings + gridLines: { + offsetGridLines: true + } + }], + yAxes: [{ + type: "linear" + }] + } + }; + + Chart.controllers.bar = Chart.DatasetController.extend({ + initialize: function(chart, datasetIndex) { + Chart.DatasetController.prototype.initialize.call(this, chart, datasetIndex); + + // Use this to indicate that this is a bar dataset. + this.getMeta().bar = true; + }, + // Get the number of datasets that display bars. We use this to correctly calculate the bar width + getBarCount: function getBarCount() { + var barCount = 0; + helpers.each(this.chart.data.datasets, function(dataset, datasetIndex) { + var meta = this.chart.getDatasetMeta(datasetIndex); + if (meta.bar && this.chart.isDatasetVisible(datasetIndex)) { + ++barCount; + } + }, this); + return barCount; + }, + + addElements: function() { + var meta = this.getMeta(); + helpers.each(this.getDataset().data, function(value, index) { + meta.data[index] = meta.data[index] || new Chart.elements.Rectangle({ + _chart: this.chart.chart, + _datasetIndex: this.index, + _index: index + }); + }, this); + }, + + addElementAndReset: function(index) { + var rectangle = new Chart.elements.Rectangle({ + _chart: this.chart.chart, + _datasetIndex: this.index, + _index: index + }); + + var numBars = this.getBarCount(); + + // Add to the points array and reset it + this.getMeta().data.splice(index, 0, rectangle); + this.updateElement(rectangle, index, true, numBars); + }, + + update: function update(reset) { + var numBars = this.getBarCount(); + + helpers.each(this.getMeta().data, function(rectangle, index) { + this.updateElement(rectangle, index, reset, numBars); + }, this); + }, + + updateElement: function updateElement(rectangle, index, reset, numBars) { + var meta = this.getMeta(); + var xScale = this.getScaleForId(meta.xAxisID); + var yScale = this.getScaleForId(meta.yAxisID); + + var yScalePoint; + + if (yScale.min < 0 && yScale.max < 0) { + // all less than 0. use the top + yScalePoint = yScale.getPixelForValue(yScale.max); + } else if (yScale.min > 0 && yScale.max > 0) { + yScalePoint = yScale.getPixelForValue(yScale.min); + } else { + yScalePoint = yScale.getPixelForValue(0); + } + + helpers.extend(rectangle, { + // Utility + _chart: this.chart.chart, + _xScale: xScale, + _yScale: yScale, + _datasetIndex: this.index, + _index: index, + + + // Desired view properties + _model: { + x: this.calculateBarX(index, this.index), + y: reset ? yScalePoint : this.calculateBarY(index, this.index), + + // Tooltip + label: this.chart.data.labels[index], + datasetLabel: this.getDataset().label, + + // Appearance + base: reset ? yScalePoint : this.calculateBarBase(this.index, index), + width: this.calculateBarWidth(numBars), + backgroundColor: rectangle.custom && rectangle.custom.backgroundColor ? rectangle.custom.backgroundColor : helpers.getValueAtIndexOrDefault(this.getDataset().backgroundColor, index, this.chart.options.elements.rectangle.backgroundColor), + borderSkipped: rectangle.custom && rectangle.custom.borderSkipped ? rectangle.custom.borderSkipped : this.chart.options.elements.rectangle.borderSkipped, + borderColor: rectangle.custom && rectangle.custom.borderColor ? rectangle.custom.borderColor : helpers.getValueAtIndexOrDefault(this.getDataset().borderColor, index, this.chart.options.elements.rectangle.borderColor), + borderWidth: rectangle.custom && rectangle.custom.borderWidth ? rectangle.custom.borderWidth : helpers.getValueAtIndexOrDefault(this.getDataset().borderWidth, index, this.chart.options.elements.rectangle.borderWidth) + } + }); + rectangle.pivot(); + }, + + calculateBarBase: function(datasetIndex, index) { + var meta = this.getMeta(); + var xScale = this.getScaleForId(meta.xAxisID); + var yScale = this.getScaleForId(meta.yAxisID); + + var base = 0; + + if (yScale.options.stacked) { + + var value = this.chart.data.datasets[datasetIndex].data[index]; + + if (value < 0) { + for (var i = 0; i < datasetIndex; i++) { + var negDS = this.chart.data.datasets[i]; + var negDSMeta = this.chart.getDatasetMeta(i); + if (negDSMeta.bar && negDSMeta.yAxisID === yScale.id && this.chart.isDatasetVisible(i)) { + base += negDS.data[index] < 0 ? negDS.data[index] : 0; + } + } + } else { + for (var j = 0; j < datasetIndex; j++) { + var posDS = this.chart.data.datasets[j]; + var posDSMeta = this.chart.getDatasetMeta(j); + if (posDSMeta.bar && posDSMeta.yAxisID === yScale.id && this.chart.isDatasetVisible(j)) { + base += posDS.data[index] > 0 ? posDS.data[index] : 0; + } + } + } + + return yScale.getPixelForValue(base); + } + + base = yScale.getPixelForValue(yScale.min); + + if (yScale.beginAtZero || ((yScale.min <= 0 && yScale.max >= 0) || (yScale.min >= 0 && yScale.max <= 0))) { + base = yScale.getPixelForValue(0, 0); + //base += yScale.options.gridLines.lineWidth; + } else if (yScale.min < 0 && yScale.max < 0) { + // All values are negative. Use the top as the base + base = yScale.getPixelForValue(yScale.max); + } + + return base; + + }, + + getRuler: function() { + var meta = this.getMeta(); + var xScale = this.getScaleForId(meta.xAxisID); + var yScale = this.getScaleForId(meta.yAxisID); + var datasetCount = this.getBarCount(); + + var tickWidth = (function() { + var min = xScale.getPixelForTick(1) - xScale.getPixelForTick(0); + for (var i = 2; i < xScale.ticks.length; i++) { + min = Math.min(xScale.getPixelForTick(i) - xScale.getPixelForTick(i - 1), min); + } + return min; + }).call(this); + var categoryWidth = tickWidth * xScale.options.categoryPercentage; + var categorySpacing = (tickWidth - (tickWidth * xScale.options.categoryPercentage)) / 2; + var fullBarWidth = categoryWidth / datasetCount; + + if (xScale.ticks.length !== this.chart.data.labels.length) { + var perc = xScale.ticks.length / this.chart.data.labels.length; + fullBarWidth = fullBarWidth * perc; + } + + var barWidth = fullBarWidth * xScale.options.barPercentage; + var barSpacing = fullBarWidth - (fullBarWidth * xScale.options.barPercentage); + + return { + datasetCount: datasetCount, + tickWidth: tickWidth, + categoryWidth: categoryWidth, + categorySpacing: categorySpacing, + fullBarWidth: fullBarWidth, + barWidth: barWidth, + barSpacing: barSpacing + }; + }, + + calculateBarWidth: function() { + var xScale = this.getScaleForId(this.getMeta().xAxisID); + var ruler = this.getRuler(); + return xScale.options.stacked ? ruler.categoryWidth : ruler.barWidth; + }, + + // Get bar index from the given dataset index accounting for the fact that not all bars are visible + getBarIndex: function(datasetIndex) { + var barIndex = 0; + var meta, j; + + for (j = 0; j < datasetIndex; ++j) { + meta = this.chart.getDatasetMeta(j); + if (meta.bar && this.chart.isDatasetVisible(j)) { + ++barIndex; + } + } + + return barIndex; + }, + + calculateBarX: function(index, datasetIndex) { + var meta = this.getMeta(); + var yScale = this.getScaleForId(meta.yAxisID); + var xScale = this.getScaleForId(meta.xAxisID); + var barIndex = this.getBarIndex(datasetIndex); + + var ruler = this.getRuler(); + var leftTick = xScale.getPixelForValue(null, index, datasetIndex, this.chart.isCombo); + leftTick -= this.chart.isCombo ? (ruler.tickWidth / 2) : 0; + + if (xScale.options.stacked) { + return leftTick + (ruler.categoryWidth / 2) + ruler.categorySpacing; + } + + return leftTick + + (ruler.barWidth / 2) + + ruler.categorySpacing + + (ruler.barWidth * barIndex) + + (ruler.barSpacing / 2) + + (ruler.barSpacing * barIndex); + }, + + calculateBarY: function(index, datasetIndex) { + var meta = this.getMeta(); + var xScale = this.getScaleForId(meta.xAxisID); + var yScale = this.getScaleForId(meta.yAxisID); + + var value = this.getDataset().data[index]; + + if (yScale.options.stacked) { + + var sumPos = 0, + sumNeg = 0; + + for (var i = 0; i < datasetIndex; i++) { + var ds = this.chart.data.datasets[i]; + var dsMeta = this.chart.getDatasetMeta(i); + if (dsMeta.bar && dsMeta.yAxisID === yScale.id && this.chart.isDatasetVisible(i)) { + if (ds.data[index] < 0) { + sumNeg += ds.data[index] || 0; + } else { + sumPos += ds.data[index] || 0; + } + } + } + + if (value < 0) { + return yScale.getPixelForValue(sumNeg + value); + } else { + return yScale.getPixelForValue(sumPos + value); + } + } + + return yScale.getPixelForValue(value); + }, + + draw: function(ease) { + var easingDecimal = ease || 1; + helpers.each(this.getMeta().data, function(rectangle, index) { + var d = this.getDataset().data[index]; + if (d !== null && d !== undefined && !isNaN(d)) { + rectangle.transition(easingDecimal).draw(); + } + }, this); + }, + + setHoverStyle: function(rectangle) { + var dataset = this.chart.data.datasets[rectangle._datasetIndex]; + var index = rectangle._index; + + rectangle._model.backgroundColor = rectangle.custom && rectangle.custom.hoverBackgroundColor ? rectangle.custom.hoverBackgroundColor : helpers.getValueAtIndexOrDefault(dataset.hoverBackgroundColor, index, helpers.getHoverColor(rectangle._model.backgroundColor)); + rectangle._model.borderColor = rectangle.custom && rectangle.custom.hoverBorderColor ? rectangle.custom.hoverBorderColor : helpers.getValueAtIndexOrDefault(dataset.hoverBorderColor, index, helpers.getHoverColor(rectangle._model.borderColor)); + rectangle._model.borderWidth = rectangle.custom && rectangle.custom.hoverBorderWidth ? rectangle.custom.hoverBorderWidth : helpers.getValueAtIndexOrDefault(dataset.hoverBorderWidth, index, rectangle._model.borderWidth); + }, + + removeHoverStyle: function(rectangle) { + var dataset = this.chart.data.datasets[rectangle._datasetIndex]; + var index = rectangle._index; + + rectangle._model.backgroundColor = rectangle.custom && rectangle.custom.backgroundColor ? rectangle.custom.backgroundColor : helpers.getValueAtIndexOrDefault(this.getDataset().backgroundColor, index, this.chart.options.elements.rectangle.backgroundColor); + rectangle._model.borderColor = rectangle.custom && rectangle.custom.borderColor ? rectangle.custom.borderColor : helpers.getValueAtIndexOrDefault(this.getDataset().borderColor, index, this.chart.options.elements.rectangle.borderColor); + rectangle._model.borderWidth = rectangle.custom && rectangle.custom.borderWidth ? rectangle.custom.borderWidth : helpers.getValueAtIndexOrDefault(this.getDataset().borderWidth, index, this.chart.options.elements.rectangle.borderWidth); + } + + }); + + + // including horizontalBar in the bar file, instead of a file of its own + // it extends bar (like pie extends doughnut) Chart.defaults.horizontalBar = { hover: { mode: "label" - }, - + }, + scales: { xAxes: [{ - type: "linear", + type: "linear", position: "bottom" }], yAxes: [{ - position: "left", - type: "category", - - // Specific to Horizontal Bar Controller - categoryPercentage: 0.8, - barPercentage: 0.9, - - // grid line settings + position: "left", + type: "category", + + // Specific to Horizontal Bar Controller + categoryPercentage: 0.8, + barPercentage: 0.9, + + // grid line settings gridLines: { offsetGridLines: true } - }] + }] }, - }; - + }; + Chart.controllers.horizontalBar = Chart.controllers.bar.extend({ updateElement: function updateElement(rectangle, index, reset, numBars) { - var meta = this.getMeta(); - var xScale = this.getScaleForId(meta.xAxisID); - var yScale = this.getScaleForId(meta.yAxisID); - - var xScalePoint; - - if (xScale.min < 0 && xScale.max < 0) { - // all less than 0. use the right + var meta = this.getMeta(); + var xScale = this.getScaleForId(meta.xAxisID); + var yScale = this.getScaleForId(meta.yAxisID); + + var xScalePoint; + + if (xScale.min < 0 && xScale.max < 0) { + // all less than 0. use the right xScalePoint = xScale.getPixelForValue(xScale.max); } else if (xScale.min > 0 && xScale.max > 0) { xScalePoint = xScale.getPixelForValue(xScale.min); } else { xScalePoint = xScale.getPixelForValue(0); - } - - helpers.extend(rectangle, { - // Utility - _chart: this.chart.chart, - _xScale: xScale, - _yScale: yScale, - _datasetIndex: this.index, - _index: index, - - // Desired view properties + } + + helpers.extend(rectangle, { + // Utility + _chart: this.chart.chart, + _xScale: xScale, + _yScale: yScale, + _datasetIndex: this.index, + _index: index, + + // Desired view properties _model: { - x: reset ? xScalePoint : this.calculateBarX(index, this.index), - y: this.calculateBarY(index, this.index), - - // Tooltip - label: this.chart.data.labels[index], - datasetLabel: this.getDataset().label, - - // Appearance - base: reset ? xScalePoint : this.calculateBarBase(this.index, index), - height: this.calculateBarHeight(numBars), - backgroundColor: rectangle.custom && rectangle.custom.backgroundColor ? rectangle.custom.backgroundColor : helpers.getValueAtIndexOrDefault(this.getDataset().backgroundColor, index, this.chart.options.elements.rectangle.backgroundColor), - borderSkipped: rectangle.custom && rectangle.custom.borderSkipped ? rectangle.custom.borderSkipped : this.chart.options.elements.rectangle.borderSkipped, - borderColor: rectangle.custom && rectangle.custom.borderColor ? rectangle.custom.borderColor : helpers.getValueAtIndexOrDefault(this.getDataset().borderColor, index, this.chart.options.elements.rectangle.borderColor), + x: reset ? xScalePoint : this.calculateBarX(index, this.index), + y: this.calculateBarY(index, this.index), + + // Tooltip + label: this.chart.data.labels[index], + datasetLabel: this.getDataset().label, + + // Appearance + base: reset ? xScalePoint : this.calculateBarBase(this.index, index), + height: this.calculateBarHeight(numBars), + backgroundColor: rectangle.custom && rectangle.custom.backgroundColor ? rectangle.custom.backgroundColor : helpers.getValueAtIndexOrDefault(this.getDataset().backgroundColor, index, this.chart.options.elements.rectangle.backgroundColor), + borderSkipped: rectangle.custom && rectangle.custom.borderSkipped ? rectangle.custom.borderSkipped : this.chart.options.elements.rectangle.borderSkipped, + borderColor: rectangle.custom && rectangle.custom.borderColor ? rectangle.custom.borderColor : helpers.getValueAtIndexOrDefault(this.getDataset().borderColor, index, this.chart.options.elements.rectangle.borderColor), borderWidth: rectangle.custom && rectangle.custom.borderWidth ? rectangle.custom.borderWidth : helpers.getValueAtIndexOrDefault(this.getDataset().borderWidth, index, this.chart.options.elements.rectangle.borderWidth) - }, - + }, + draw: function () { - - var ctx = this._chart.ctx; - var vm = this._view; - - var halfHeight = vm.height / 2, - topY = vm.y - halfHeight, - bottomY = vm.y + halfHeight, - right = vm.base - (vm.base - vm.x), - halfStroke = vm.borderWidth / 2; - - // Canvas doesn't allow us to stroke inside the width so we can - // adjust the sizes to fit if we're setting a stroke on the line + + var ctx = this._chart.ctx; + var vm = this._view; + + var halfHeight = vm.height / 2, + topY = vm.y - halfHeight, + bottomY = vm.y + halfHeight, + right = vm.base - (vm.base - vm.x), + halfStroke = vm.borderWidth / 2; + + // Canvas doesn't allow us to stroke inside the width so we can + // adjust the sizes to fit if we're setting a stroke on the line if (vm.borderWidth) { - topY += halfStroke; - bottomY -= halfStroke; + topY += halfStroke; + bottomY -= halfStroke; right += halfStroke; - } - - ctx.beginPath(); - - ctx.fillStyle = vm.backgroundColor; - ctx.strokeStyle = vm.borderColor; - ctx.lineWidth = vm.borderWidth; - - // Corner points, from bottom-left to bottom-right clockwise - // | 1 2 | - // | 0 3 | - var corners = [ - [vm.base, bottomY], - [vm.base, topY], - [right, topY], - [right, bottomY] - ]; - - // Find first (starting) corner with fallback to 'bottom' - var borders = ['bottom', 'left', 'top', 'right']; - var startCorner = borders.indexOf(vm.borderSkipped, 0); - if (startCorner === -1) - startCorner = 0; - + } + + ctx.beginPath(); + + ctx.fillStyle = vm.backgroundColor; + ctx.strokeStyle = vm.borderColor; + ctx.lineWidth = vm.borderWidth; + + // Corner points, from bottom-left to bottom-right clockwise + // | 1 2 | + // | 0 3 | + var corners = [ + [vm.base, bottomY], + [vm.base, topY], + [right, topY], + [right, bottomY] + ]; + + // Find first (starting) corner with fallback to 'bottom' + var borders = ['bottom', 'left', 'top', 'right']; + var startCorner = borders.indexOf(vm.borderSkipped, 0); + if (startCorner === -1) + startCorner = 0; + function cornerAt(index) { return corners[(startCorner + index) % 4]; - } - - // Draw rectangle from 'startCorner' - ctx.moveTo.apply(ctx, cornerAt(0)); - for (var i = 1; i < 4; i++) - ctx.lineTo.apply(ctx, cornerAt(i)); - - ctx.fill(); + } + + // Draw rectangle from 'startCorner' + ctx.moveTo.apply(ctx, cornerAt(0)); + for (var i = 1; i < 4; i++) + ctx.lineTo.apply(ctx, cornerAt(i)); + + ctx.fill(); if (vm.borderWidth) { ctx.stroke(); } - }, - + }, + inRange: function (mouseX, mouseY) { - var vm = this._view; - var inRange = false; - + var vm = this._view; + var inRange = false; + if (vm) { if (vm.x < vm.base) { inRange = (mouseY >= vm.y - vm.height / 2 && mouseY <= vm.y + vm.height / 2) && (mouseX >= vm.x && mouseX <= vm.base); } else { inRange = (mouseY >= vm.y - vm.height / 2 && mouseY <= vm.y + vm.height / 2) && (mouseX >= vm.base && mouseX <= vm.x); } - } - + } + return inRange; } - }); - + }); + rectangle.pivot(); - }, - + }, + calculateBarBase: function (datasetIndex, index) { - var meta = this.getMeta(); - var xScale = this.getScaleForId(meta.xAxisID); - var yScale = this.getScaleForId(meta.yAxisID); - - var base = 0; - + var meta = this.getMeta(); + var xScale = this.getScaleForId(meta.xAxisID); + var yScale = this.getScaleForId(meta.yAxisID); + + var base = 0; + if (xScale.options.stacked) { - - var value = this.chart.data.datasets[datasetIndex].data[index]; - + + var value = this.chart.data.datasets[datasetIndex].data[index]; + if (value < 0) { for (var i = 0; i < datasetIndex; i++) { - var negDS = this.chart.data.datasets[i]; - var negDSMeta = this.chart.getDatasetMeta(i); + var negDS = this.chart.data.datasets[i]; + var negDSMeta = this.chart.getDatasetMeta(i); if (negDSMeta.bar && negDSMeta.xAxisID === xScale.id && this.chart.isDatasetVisible(i)) { base += negDS.data[index] < 0 ? negDS.data[index] : 0; } } } else { for (var j = 0; j < datasetIndex; j++) { - var posDS = this.chart.data.datasets[j]; - var posDSMeta = this.chart.getDatasetMeta(j); + var posDS = this.chart.data.datasets[j]; + var posDSMeta = this.chart.getDatasetMeta(j); if (posDSMeta.bar && posDSMeta.xAxisID === xScale.id && this.chart.isDatasetVisible(j)) { base += posDS.data[index] > 0 ? posDS.data[index] : 0; } } - } - + } + return xScale.getPixelForValue(base); - } - - base = xScale.getPixelForValue(xScale.min); - + } + + base = xScale.getPixelForValue(xScale.min); + if (xScale.beginAtZero || ((xScale.min <= 0 && xScale.max >= 0) || (xScale.min >= 0 && xScale.max <= 0))) { base = xScale.getPixelForValue(0, 0); - } else if (xScale.min < 0 && xScale.max < 0) { - // All values are negative. Use the right as the base + } else if (xScale.min < 0 && xScale.max < 0) { + // All values are negative. Use the right as the base base = xScale.getPixelForValue(xScale.max); - } - + } + return base; - }, - + }, + getRuler: function () { - var meta = this.getMeta(); - var xScale = this.getScaleForId(meta.xAxisID); - var yScale = this.getScaleForId(meta.yAxisID); - var datasetCount = this.getBarCount(); - + var meta = this.getMeta(); + var xScale = this.getScaleForId(meta.xAxisID); + var yScale = this.getScaleForId(meta.yAxisID); + var datasetCount = this.getBarCount(); + var tickHeight = (function () { - var min = yScale.getPixelForTick(1) - yScale.getPixelForTick(0); + var min = yScale.getPixelForTick(1) - yScale.getPixelForTick(0); for (var i = 2; i < this.getDataset().data.length; i++) { min = Math.min(yScale.getPixelForTick(i) - yScale.getPixelForTick(i - 1), min); - } + } return min; - }).call(this); - var categoryHeight = tickHeight * yScale.options.categoryPercentage; - var categorySpacing = (tickHeight - (tickHeight * yScale.options.categoryPercentage)) / 2; - var fullBarHeight = categoryHeight / datasetCount; - + }).call(this); + var categoryHeight = tickHeight * yScale.options.categoryPercentage; + var categorySpacing = (tickHeight - (tickHeight * yScale.options.categoryPercentage)) / 2; + var fullBarHeight = categoryHeight / datasetCount; + if (yScale.ticks.length !== this.chart.data.labels.length) { - var perc = yScale.ticks.length / this.chart.data.labels.length; + var perc = yScale.ticks.length / this.chart.data.labels.length; fullBarHeight = fullBarHeight * perc; - } - - var barHeight = fullBarHeight * yScale.options.barPercentage; - var barSpacing = fullBarHeight - (fullBarHeight * yScale.options.barPercentage); - + } + + var barHeight = fullBarHeight * yScale.options.barPercentage; + var barSpacing = fullBarHeight - (fullBarHeight * yScale.options.barPercentage); + return { - datasetCount: datasetCount, - tickHeight: tickHeight, - categoryHeight: categoryHeight, - categorySpacing: categorySpacing, - fullBarHeight: fullBarHeight, - barHeight: barHeight, + datasetCount: datasetCount, + tickHeight: tickHeight, + categoryHeight: categoryHeight, + categorySpacing: categorySpacing, + fullBarHeight: fullBarHeight, + barHeight: barHeight, barSpacing: barSpacing, }; - }, - + }, + calculateBarHeight: function () { - var yScale = this.getScaleForId(this.getMeta().yAxisID); - var ruler = this.getRuler(); + var yScale = this.getScaleForId(this.getMeta().yAxisID); + var ruler = this.getRuler(); return yScale.options.stacked ? ruler.categoryHeight : ruler.barHeight; - }, - + }, + calculateBarX: function (index, datasetIndex) { - var meta = this.getMeta(); - var xScale = this.getScaleForId(meta.xAxisID); - var yScale = this.getScaleForId(meta.yAxisID); - - var value = this.getDataset().data[index]; - + var meta = this.getMeta(); + var xScale = this.getScaleForId(meta.xAxisID); + var yScale = this.getScaleForId(meta.yAxisID); + + var value = this.getDataset().data[index]; + if (xScale.options.stacked) { - var sumPos = 0, - sumNeg = 0; - + var sumPos = 0, + sumNeg = 0; + for (var i = 0; i < datasetIndex; i++) { - var ds = this.chart.data.datasets[i]; - var dsMeta = this.chart.getDatasetMeta(i); + var ds = this.chart.data.datasets[i]; + var dsMeta = this.chart.getDatasetMeta(i); if (dsMeta.bar && dsMeta.xAxisID === xScale.id && this.chart.isDatasetVisible(i)) { if (ds.data[index] < 0) { sumNeg += ds.data[index] || 0; } else { sumPos += ds.data[index] || 0; } } - } - + } + if (value < 0) { return xScale.getPixelForValue(sumNeg + value); } else { return xScale.getPixelForValue(sumPos + value); - } - } - + } + } + return xScale.getPixelForValue(value); - }, - + }, + calculateBarY: function (index, datasetIndex) { - var meta = this.getMeta(); - var yScale = this.getScaleForId(meta.yAxisID); - var xScale = this.getScaleForId(meta.xAxisID); - var barIndex = this.getBarIndex(datasetIndex); - - var ruler = this.getRuler(); - var topTick = yScale.getPixelForValue(null, index, datasetIndex, this.chart.isCombo); - topTick -= this.chart.isCombo ? (ruler.tickHeight / 2) : 0; - + var meta = this.getMeta(); + var yScale = this.getScaleForId(meta.yAxisID); + var xScale = this.getScaleForId(meta.xAxisID); + var barIndex = this.getBarIndex(datasetIndex); + + var ruler = this.getRuler(); + var topTick = yScale.getPixelForValue(null, index, datasetIndex, this.chart.isCombo); + topTick -= this.chart.isCombo ? (ruler.tickHeight / 2) : 0; + if (yScale.options.stacked) { return topTick + (ruler.categoryHeight / 2) + ruler.categorySpacing; - } - - return topTick + - (ruler.barHeight / 2) + - ruler.categorySpacing + - (ruler.barHeight * barIndex) + - (ruler.barSpacing / 2) + + } + + return topTick + + (ruler.barHeight / 2) + + ruler.categorySpacing + + (ruler.barHeight * barIndex) + + (ruler.barSpacing / 2) + (ruler.barSpacing * barIndex); } - }); -}; + }); +}; },{}],16:[function(require,module,exports){ -"use strict"; +"use strict"; + +module.exports = function(Chart) { + + var helpers = Chart.helpers; + + Chart.defaults.bubble = { + hover: { + mode: "single" + }, + + scales: { + xAxes: [{ + type: "linear", // bubble should probably use a linear scale by default + position: "bottom", + id: "x-axis-0" // need an ID so datasets can reference the scale + }], + yAxes: [{ + type: "linear", + position: "left", + id: "y-axis-0" + }] + }, + + tooltips: { + callbacks: { + title: function(tooltipItems, data) { + // Title doesn't make sense for scatter since we format the data as a point + return ''; + }, + label: function(tooltipItem, data) { + var datasetLabel = data.datasets[tooltipItem.datasetIndex].label || ''; + var dataPoint = data.datasets[tooltipItem.datasetIndex].data[tooltipItem.index]; + return datasetLabel + ': (' + dataPoint.x + ', ' + dataPoint.y + ', ' + dataPoint.r + ')'; + } + } + } + }; + + + Chart.controllers.bubble = Chart.DatasetController.extend({ + addElements: function() { + var meta = this.getMeta(); + helpers.each(this.getDataset().data, function(value, index) { + meta.data[index] = meta.data[index] || new Chart.elements.Point({ + _chart: this.chart.chart, + _datasetIndex: this.index, + _index: index + }); + }, this); + }, + addElementAndReset: function(index) { + var point = new Chart.elements.Point({ + _chart: this.chart.chart, + _datasetIndex: this.index, + _index: index + }); + + // Add to the points array and reset it + this.getMeta().data.splice(index, 0, point); + this.updateElement(point, index, true); + }, + + update: function update(reset) { + var meta = this.getMeta(); + var points = meta.data; + var yScale = this.getScaleForId(meta.yAxisID); + var xScale = this.getScaleForId(meta.xAxisID); + var scaleBase; + + if (yScale.min < 0 && yScale.max < 0) { + scaleBase = yScale.getPixelForValue(yScale.max); + } else if (yScale.min > 0 && yScale.max > 0) { + scaleBase = yScale.getPixelForValue(yScale.min); + } else { + scaleBase = yScale.getPixelForValue(0); + } + + // Update Points + helpers.each(points, function(point, index) { + this.updateElement(point, index, reset); + }, this); + + }, + + updateElement: function(point, index, reset) { + var meta = this.getMeta(); + var yScale = this.getScaleForId(meta.yAxisID); + var xScale = this.getScaleForId(meta.xAxisID); + var scaleBase; + + if (yScale.min < 0 && yScale.max < 0) { + scaleBase = yScale.getPixelForValue(yScale.max); + } else if (yScale.min > 0 && yScale.max > 0) { + scaleBase = yScale.getPixelForValue(yScale.min); + } else { + scaleBase = yScale.getPixelForValue(0); + } + + helpers.extend(point, { + // Utility + _chart: this.chart.chart, + _xScale: xScale, + _yScale: yScale, + _datasetIndex: this.index, + _index: index, + + // Desired view properties + _model: { + x: reset ? xScale.getPixelForDecimal(0.5) : xScale.getPixelForValue(this.getDataset().data[index], index, this.index, this.chart.isCombo), + y: reset ? scaleBase : yScale.getPixelForValue(this.getDataset().data[index], index, this.index), + // Appearance + radius: reset ? 0 : point.custom && point.custom.radius ? point.custom.radius : this.getRadius(this.getDataset().data[index]), + backgroundColor: point.custom && point.custom.backgroundColor ? point.custom.backgroundColor : helpers.getValueAtIndexOrDefault(this.getDataset().backgroundColor, index, this.chart.options.elements.point.backgroundColor), + borderColor: point.custom && point.custom.borderColor ? point.custom.borderColor : helpers.getValueAtIndexOrDefault(this.getDataset().borderColor, index, this.chart.options.elements.point.borderColor), + borderWidth: point.custom && point.custom.borderWidth ? point.custom.borderWidth : helpers.getValueAtIndexOrDefault(this.getDataset().borderWidth, index, this.chart.options.elements.point.borderWidth), + + // Tooltip + hitRadius: point.custom && point.custom.hitRadius ? point.custom.hitRadius : helpers.getValueAtIndexOrDefault(this.getDataset().hitRadius, index, this.chart.options.elements.point.hitRadius) + } + }); + + point._model.skip = point.custom && point.custom.skip ? point.custom.skip : (isNaN(point._model.x) || isNaN(point._model.y)); + + point.pivot(); + }, + + getRadius: function(value) { + return value.r || this.chart.options.elements.point.radius; + }, + + draw: function(ease) { + var easingDecimal = ease || 1; + + // Transition and Draw the Points + helpers.each(this.getMeta().data, function(point, index) { + point.transition(easingDecimal); + point.draw(); + }); + + }, + + setHoverStyle: function(point) { + // Point + var dataset = this.chart.data.datasets[point._datasetIndex]; + var index = point._index; + + point._model.radius = point.custom && point.custom.hoverRadius ? point.custom.hoverRadius : (helpers.getValueAtIndexOrDefault(dataset.hoverRadius, index, this.chart.options.elements.point.hoverRadius)) + this.getRadius(this.getDataset().data[point._index]); + point._model.backgroundColor = point.custom && point.custom.hoverBackgroundColor ? point.custom.hoverBackgroundColor : helpers.getValueAtIndexOrDefault(dataset.hoverBackgroundColor, index, helpers.getHoverColor(point._model.backgroundColor)); + point._model.borderColor = point.custom && point.custom.hoverBorderColor ? point.custom.hoverBorderColor : helpers.getValueAtIndexOrDefault(dataset.hoverBorderColor, index, helpers.getHoverColor(point._model.borderColor)); + point._model.borderWidth = point.custom && point.custom.hoverBorderWidth ? point.custom.hoverBorderWidth : helpers.getValueAtIndexOrDefault(dataset.hoverBorderWidth, index, point._model.borderWidth); + }, + + removeHoverStyle: function(point) { + var dataset = this.chart.data.datasets[point._datasetIndex]; + var index = point._index; + + point._model.radius = point.custom && point.custom.radius ? point.custom.radius : this.getRadius(this.getDataset().data[point._index]); + point._model.backgroundColor = point.custom && point.custom.backgroundColor ? point.custom.backgroundColor : helpers.getValueAtIndexOrDefault(this.getDataset().backgroundColor, index, this.chart.options.elements.point.backgroundColor); + point._model.borderColor = point.custom && point.custom.borderColor ? point.custom.borderColor : helpers.getValueAtIndexOrDefault(this.getDataset().borderColor, index, this.chart.options.elements.point.borderColor); + point._model.borderWidth = point.custom && point.custom.borderWidth ? point.custom.borderWidth : helpers.getValueAtIndexOrDefault(this.getDataset().borderWidth, index, this.chart.options.elements.point.borderWidth); + } + }); +}; -module.exports = function(Chart) { - - var helpers = Chart.helpers; - - Chart.defaults.bubble = { - hover: { - mode: "single" - }, - - scales: { - xAxes: [{ - type: "linear", // bubble should probably use a linear scale by default - position: "bottom", - id: "x-axis-0" // need an ID so datasets can reference the scale - }], - yAxes: [{ - type: "linear", - position: "left", - id: "y-axis-0" - }] - }, - - tooltips: { - callbacks: { - title: function(tooltipItems, data) { - // Title doesn't make sense for scatter since we format the data as a point - return ''; - }, - label: function(tooltipItem, data) { - var datasetLabel = data.datasets[tooltipItem.datasetIndex].label || ''; - var dataPoint = data.datasets[tooltipItem.datasetIndex].data[tooltipItem.index]; - return datasetLabel + ': (' + dataPoint.x + ', ' + dataPoint.y + ', ' + dataPoint.r + ')'; - } - } - } - }; - - - Chart.controllers.bubble = Chart.DatasetController.extend({ - addElements: function() { - var meta = this.getMeta(); - helpers.each(this.getDataset().data, function(value, index) { - meta.data[index] = meta.data[index] || new Chart.elements.Point({ - _chart: this.chart.chart, - _datasetIndex: this.index, - _index: index - }); - }, this); - }, - addElementAndReset: function(index) { - var point = new Chart.elements.Point({ - _chart: this.chart.chart, - _datasetIndex: this.index, - _index: index - }); - - // Add to the points array and reset it - this.getMeta().data.splice(index, 0, point); - this.updateElement(point, index, true); - }, - - update: function update(reset) { - var meta = this.getMeta(); - var points = meta.data; - var yScale = this.getScaleForId(meta.yAxisID); - var xScale = this.getScaleForId(meta.xAxisID); - var scaleBase; - - if (yScale.min < 0 && yScale.max < 0) { - scaleBase = yScale.getPixelForValue(yScale.max); - } else if (yScale.min > 0 && yScale.max > 0) { - scaleBase = yScale.getPixelForValue(yScale.min); - } else { - scaleBase = yScale.getPixelForValue(0); - } - - // Update Points - helpers.each(points, function(point, index) { - this.updateElement(point, index, reset); - }, this); - - }, - - updateElement: function(point, index, reset) { - var meta = this.getMeta(); - var yScale = this.getScaleForId(meta.yAxisID); - var xScale = this.getScaleForId(meta.xAxisID); - var scaleBase; - - if (yScale.min < 0 && yScale.max < 0) { - scaleBase = yScale.getPixelForValue(yScale.max); - } else if (yScale.min > 0 && yScale.max > 0) { - scaleBase = yScale.getPixelForValue(yScale.min); - } else { - scaleBase = yScale.getPixelForValue(0); - } - - helpers.extend(point, { - // Utility - _chart: this.chart.chart, - _xScale: xScale, - _yScale: yScale, - _datasetIndex: this.index, - _index: index, - - // Desired view properties - _model: { - x: reset ? xScale.getPixelForDecimal(0.5) : xScale.getPixelForValue(this.getDataset().data[index], index, this.index, this.chart.isCombo), - y: reset ? scaleBase : yScale.getPixelForValue(this.getDataset().data[index], index, this.index), - // Appearance - radius: reset ? 0 : point.custom && point.custom.radius ? point.custom.radius : this.getRadius(this.getDataset().data[index]), - backgroundColor: point.custom && point.custom.backgroundColor ? point.custom.backgroundColor : helpers.getValueAtIndexOrDefault(this.getDataset().backgroundColor, index, this.chart.options.elements.point.backgroundColor), - borderColor: point.custom && point.custom.borderColor ? point.custom.borderColor : helpers.getValueAtIndexOrDefault(this.getDataset().borderColor, index, this.chart.options.elements.point.borderColor), - borderWidth: point.custom && point.custom.borderWidth ? point.custom.borderWidth : helpers.getValueAtIndexOrDefault(this.getDataset().borderWidth, index, this.chart.options.elements.point.borderWidth), - - // Tooltip - hitRadius: point.custom && point.custom.hitRadius ? point.custom.hitRadius : helpers.getValueAtIndexOrDefault(this.getDataset().hitRadius, index, this.chart.options.elements.point.hitRadius) - } - }); - - point._model.skip = point.custom && point.custom.skip ? point.custom.skip : (isNaN(point._model.x) || isNaN(point._model.y)); - - point.pivot(); - }, - - getRadius: function(value) { - return value.r || this.chart.options.elements.point.radius; - }, - - draw: function(ease) { - var easingDecimal = ease || 1; - - // Transition and Draw the Points - helpers.each(this.getMeta().data, function(point, index) { - point.transition(easingDecimal); - point.draw(); - }); - - }, - - setHoverStyle: function(point) { - // Point - var dataset = this.chart.data.datasets[point._datasetIndex]; - var index = point._index; - - point._model.radius = point.custom && point.custom.hoverRadius ? point.custom.hoverRadius : (helpers.getValueAtIndexOrDefault(dataset.hoverRadius, index, this.chart.options.elements.point.hoverRadius)) + this.getRadius(this.getDataset().data[point._index]); - point._model.backgroundColor = point.custom && point.custom.hoverBackgroundColor ? point.custom.hoverBackgroundColor : helpers.getValueAtIndexOrDefault(dataset.hoverBackgroundColor, index, helpers.color(point._model.backgroundColor).saturate(0.5).darken(0.1).rgbString()); - point._model.borderColor = point.custom && point.custom.hoverBorderColor ? point.custom.hoverBorderColor : helpers.getValueAtIndexOrDefault(dataset.hoverBorderColor, index, helpers.color(point._model.borderColor).saturate(0.5).darken(0.1).rgbString()); - point._model.borderWidth = point.custom && point.custom.hoverBorderWidth ? point.custom.hoverBorderWidth : helpers.getValueAtIndexOrDefault(dataset.hoverBorderWidth, index, point._model.borderWidth); - }, - - removeHoverStyle: function(point) { - var dataset = this.chart.data.datasets[point._datasetIndex]; - var index = point._index; - - point._model.radius = point.custom && point.custom.radius ? point.custom.radius : this.getRadius(this.getDataset().data[point._index]); - point._model.backgroundColor = point.custom && point.custom.backgroundColor ? point.custom.backgroundColor : helpers.getValueAtIndexOrDefault(this.getDataset().backgroundColor, index, this.chart.options.elements.point.backgroundColor); - point._model.borderColor = point.custom && point.custom.borderColor ? point.custom.borderColor : helpers.getValueAtIndexOrDefault(this.getDataset().borderColor, index, this.chart.options.elements.point.borderColor); - point._model.borderWidth = point.custom && point.custom.borderWidth ? point.custom.borderWidth : helpers.getValueAtIndexOrDefault(this.getDataset().borderWidth, index, this.chart.options.elements.point.borderWidth); - } - }); -}; },{}],17:[function(require,module,exports){ -"use strict"; +"use strict"; + +module.exports = function(Chart) { + + var helpers = Chart.helpers; + + Chart.defaults.doughnut = { + animation: { + //Boolean - Whether we animate the rotation of the Doughnut + animateRotate: true, + //Boolean - Whether we animate scaling the Doughnut from the centre + animateScale: false + }, + aspectRatio: 1, + hover: { + mode: 'single' + }, + legendCallback: function(chart) { + var text = []; + text.push('<ul class="' + chart.id + '-legend">'); + + if (chart.data.datasets.length) { + for (var i = 0; i < chart.data.datasets[0].data.length; ++i) { + text.push('<li><span style="background-color:' + chart.data.datasets[0].backgroundColor[i] + '"></span>'); + if (chart.data.labels[i]) { + text.push(chart.data.labels[i]); + } + text.push('</li>'); + } + } + + text.push('</ul>'); + return text.join(""); + }, + legend: { + labels: { + generateLabels: function(chart) { + var data = chart.data; + if (data.labels.length && data.datasets.length) { + return data.labels.map(function(label, i) { + var meta = chart.getDatasetMeta(0); + var ds = data.datasets[0]; + var arc = meta.data[i]; + var fill = arc.custom && arc.custom.backgroundColor ? arc.custom.backgroundColor : helpers.getValueAtIndexOrDefault(ds.backgroundColor, i, this.chart.options.elements.arc.backgroundColor); + var stroke = arc.custom && arc.custom.borderColor ? arc.custom.borderColor : helpers.getValueAtIndexOrDefault(ds.borderColor, i, this.chart.options.elements.arc.borderColor); + var bw = arc.custom && arc.custom.borderWidth ? arc.custom.borderWidth : helpers.getValueAtIndexOrDefault(ds.borderWidth, i, this.chart.options.elements.arc.borderWidth); + + return { + text: label, + fillStyle: fill, + strokeStyle: stroke, + lineWidth: bw, + hidden: isNaN(ds.data[i]) || meta.data[i].hidden, + + // Extra data used for toggling the correct item + index: i + }; + }, this); + } else { + return []; + } + } + }, + + onClick: function(e, legendItem) { + var index = legendItem.index; + var chart = this.chart; + var i, ilen, meta; + + for (i = 0, ilen = (chart.data.datasets || []).length; i < ilen; ++i) { + meta = chart.getDatasetMeta(i); + meta.data[index].hidden = !meta.data[index].hidden; + } + + chart.update(); + } + }, + + //The percentage of the chart that we cut out of the middle. + cutoutPercentage: 50, + + //The rotation of the chart, where the first data arc begins. + rotation: Math.PI * -0.5, + + //The total circumference of the chart. + circumference: Math.PI * 2.0, + + // Need to override these to give a nice default + tooltips: { + callbacks: { + title: function() { + return ''; + }, + label: function(tooltipItem, data) { + return data.labels[tooltipItem.index] + ': ' + data.datasets[tooltipItem.datasetIndex].data[tooltipItem.index]; + } + } + } + }; + + Chart.defaults.pie = helpers.clone(Chart.defaults.doughnut); + helpers.extend(Chart.defaults.pie, { + cutoutPercentage: 0 + }); + + + Chart.controllers.doughnut = Chart.controllers.pie = Chart.DatasetController.extend({ + linkScales: function() { + // no scales for doughnut + }, + + addElements: function() { + var meta = this.getMeta(); + helpers.each(this.getDataset().data, function(value, index) { + meta.data[index] = meta.data[index] || new Chart.elements.Arc({ + _chart: this.chart.chart, + _datasetIndex: this.index, + _index: index + }); + }, this); + }, + + addElementAndReset: function(index, colorForNewElement) { + var arc = new Chart.elements.Arc({ + _chart: this.chart.chart, + _datasetIndex: this.index, + _index: index + }); + + if (colorForNewElement && helpers.isArray(this.getDataset().backgroundColor)) { + this.getDataset().backgroundColor.splice(index, 0, colorForNewElement); + } + + // Add to the points array and reset it + this.getMeta().data.splice(index, 0, arc); + this.updateElement(arc, index, true); + }, + + // Get index of the dataset in relation to the visible datasets. This allows determining the inner and outer radius correctly + getRingIndex: function getRingIndex(datasetIndex) { + var ringIndex = 0; + + for (var j = 0; j < datasetIndex; ++j) { + if (this.chart.isDatasetVisible(j)) { + ++ringIndex; + } + } + + return ringIndex; + }, + + update: function update(reset) { + var availableWidth = this.chart.chartArea.right - this.chart.chartArea.left - this.chart.options.elements.arc.borderWidth; + var availableHeight = this.chart.chartArea.bottom - this.chart.chartArea.top - this.chart.options.elements.arc.borderWidth; + var minSize = Math.min(availableWidth, availableHeight); + var offset = {x: 0, y: 0}; + + // If the chart's circumference isn't a full circle, calculate minSize as a ratio of the width/height of the arc + if (this.chart.options.circumference < Math.PI * 2.0) { + var startAngle = this.chart.options.rotation % (Math.PI * 2.0); + startAngle += Math.PI * 2.0 * (startAngle >= Math.PI ? -1 : startAngle < -Math.PI ? 1 : 0); + var endAngle = startAngle + this.chart.options.circumference; + var start = {x: Math.cos(startAngle), y: Math.sin(startAngle)}; + var end = {x: Math.cos(endAngle), y: Math.sin(endAngle)}; + var contains0 = (startAngle <= 0 && 0 <= endAngle) || (startAngle <= Math.PI * 2.0 && Math.PI * 2.0 <= endAngle); + var contains90 = (startAngle <= Math.PI * 0.5 && Math.PI * 0.5 <= endAngle) || (startAngle <= Math.PI * 2.5 && Math.PI * 2.5 <= endAngle); + var contains180 = (startAngle <= -Math.PI && -Math.PI <= endAngle) || (startAngle <= Math.PI && Math.PI <= endAngle); + var contains270 = (startAngle <= -Math.PI * 0.5 && -Math.PI * 0.5 <= endAngle) || (startAngle <= Math.PI * 1.5 && Math.PI * 1.5 <= endAngle); + var cutout = this.chart.options.cutoutPercentage / 100.0; + var min = {x: contains180 ? -1 : Math.min(start.x * (start.x < 0 ? 1 : cutout), end.x * (end.x < 0 ? 1 : cutout)), y: contains270 ? -1 : Math.min(start.y * (start.y < 0 ? 1 : cutout), end.y * (end.y < 0 ? 1 : cutout))}; + var max = {x: contains0 ? 1 : Math.max(start.x * (start.x > 0 ? 1 : cutout), end.x * (end.x > 0 ? 1 : cutout)), y: contains90 ? 1 : Math.max(start.y * (start.y > 0 ? 1 : cutout), end.y * (end.y > 0 ? 1 : cutout))}; + var size = {width: (max.x - min.x) * 0.5, height: (max.y - min.y) * 0.5}; + minSize = Math.min(availableWidth / size.width, availableHeight / size.height); + offset = {x: (max.x + min.x) * -0.5, y: (max.y + min.y) * -0.5}; + } + + this.chart.outerRadius = Math.max(minSize / 2, 0); + this.chart.innerRadius = Math.max(this.chart.options.cutoutPercentage ? (this.chart.outerRadius / 100) * (this.chart.options.cutoutPercentage) : 1, 0); + this.chart.radiusLength = (this.chart.outerRadius - this.chart.innerRadius) / this.chart.getVisibleDatasetCount(); + this.chart.offsetX = offset.x * this.chart.outerRadius; + this.chart.offsetY = offset.y * this.chart.outerRadius; + + this.getMeta().total = this.calculateTotal(); + + this.outerRadius = this.chart.outerRadius - (this.chart.radiusLength * this.getRingIndex(this.index)); + this.innerRadius = this.outerRadius - this.chart.radiusLength; + + helpers.each(this.getMeta().data, function(arc, index) { + this.updateElement(arc, index, reset); + }, this); + }, + + updateElement: function(arc, index, reset) { + var centerX = (this.chart.chartArea.left + this.chart.chartArea.right) / 2; + var centerY = (this.chart.chartArea.top + this.chart.chartArea.bottom) / 2; + var startAngle = this.chart.options.rotation; // non reset case handled later + var endAngle = this.chart.options.rotation; // non reset case handled later + var circumference = reset && this.chart.options.animation.animateRotate ? 0 : arc.hidden? 0 : this.calculateCircumference(this.getDataset().data[index]) * (this.chart.options.circumference / (2.0 * Math.PI)); + var innerRadius = reset && this.chart.options.animation.animateScale ? 0 : this.innerRadius; + var outerRadius = reset && this.chart.options.animation.animateScale ? 0 : this.outerRadius; + + helpers.extend(arc, { + // Utility + _chart: this.chart.chart, + _datasetIndex: this.index, + _index: index, + + // Desired view properties + _model: { + x: centerX + this.chart.offsetX, + y: centerY + this.chart.offsetY, + startAngle: startAngle, + endAngle: endAngle, + circumference: circumference, + outerRadius: outerRadius, + innerRadius: innerRadius, + + backgroundColor: arc.custom && arc.custom.backgroundColor ? arc.custom.backgroundColor : helpers.getValueAtIndexOrDefault(this.getDataset().backgroundColor, index, this.chart.options.elements.arc.backgroundColor), + hoverBackgroundColor: arc.custom && arc.custom.hoverBackgroundColor ? arc.custom.hoverBackgroundColor : helpers.getValueAtIndexOrDefault(this.getDataset().hoverBackgroundColor, index, this.chart.options.elements.arc.hoverBackgroundColor), + borderWidth: arc.custom && arc.custom.borderWidth ? arc.custom.borderWidth : helpers.getValueAtIndexOrDefault(this.getDataset().borderWidth, index, this.chart.options.elements.arc.borderWidth), + borderColor: arc.custom && arc.custom.borderColor ? arc.custom.borderColor : helpers.getValueAtIndexOrDefault(this.getDataset().borderColor, index, this.chart.options.elements.arc.borderColor), + + label: helpers.getValueAtIndexOrDefault(this.getDataset().label, index, this.chart.data.labels[index]) + } + }); + + // Set correct angles if not resetting + if (!reset || !this.chart.options.animation.animateRotate) { + + if (index === 0) { + arc._model.startAngle = this.chart.options.rotation; + } else { + arc._model.startAngle = this.getMeta().data[index - 1]._model.endAngle; + } + + arc._model.endAngle = arc._model.startAngle + arc._model.circumference; + } + + arc.pivot(); + }, + + draw: function(ease) { + var easingDecimal = ease || 1; + helpers.each(this.getMeta().data, function(arc, index) { + arc.transition(easingDecimal).draw(); + }); + }, + + setHoverStyle: function(arc) { + var dataset = this.chart.data.datasets[arc._datasetIndex]; + var index = arc._index; + + arc._model.backgroundColor = arc.custom && arc.custom.hoverBackgroundColor ? arc.custom.hoverBackgroundColor : helpers.getValueAtIndexOrDefault(dataset.hoverBackgroundColor, index, helpers.getHoverColor(arc._model.backgroundColor)); + arc._model.borderColor = arc.custom && arc.custom.hoverBorderColor ? arc.custom.hoverBorderColor : helpers.getValueAtIndexOrDefault(dataset.hoverBorderColor, index, helpers.getHoverColor(arc._model.borderColor)); + arc._model.borderWidth = arc.custom && arc.custom.hoverBorderWidth ? arc.custom.hoverBorderWidth : helpers.getValueAtIndexOrDefault(dataset.hoverBorderWidth, index, arc._model.borderWidth); + }, + + removeHoverStyle: function(arc) { + var dataset = this.chart.data.datasets[arc._datasetIndex]; + var index = arc._index; + + arc._model.backgroundColor = arc.custom && arc.custom.backgroundColor ? arc.custom.backgroundColor : helpers.getValueAtIndexOrDefault(this.getDataset().backgroundColor, index, this.chart.options.elements.arc.backgroundColor); + arc._model.borderColor = arc.custom && arc.custom.borderColor ? arc.custom.borderColor : helpers.getValueAtIndexOrDefault(this.getDataset().borderColor, index, this.chart.options.elements.arc.borderColor); + arc._model.borderWidth = arc.custom && arc.custom.borderWidth ? arc.custom.borderWidth : helpers.getValueAtIndexOrDefault(this.getDataset().borderWidth, index, this.chart.options.elements.arc.borderWidth); + }, + + calculateTotal: function() { + var dataset = this.getDataset(); + var meta = this.getMeta(); + var total = 0; + var value; + + helpers.each(meta.data, function(element, index) { + value = dataset.data[index]; + if (!isNaN(value) && !element.hidden) { + total += Math.abs(value); + } + }); + + return total; + }, + + calculateCircumference: function(value) { + var total = this.getMeta().total; + if (total > 0 && !isNaN(value)) { + return (Math.PI * 2.0) * (value / total); + } else { + return 0; + } + } + }); +}; -module.exports = function(Chart) { - - var helpers = Chart.helpers; - - Chart.defaults.doughnut = { - animation: { - //Boolean - Whether we animate the rotation of the Doughnut - animateRotate: true, - //Boolean - Whether we animate scaling the Doughnut from the centre - animateScale: false - }, - aspectRatio: 1, - hover: { - mode: 'single' - }, - legendCallback: function(chart) { - var text = []; - text.push('<ul class="' + chart.id + '-legend">'); - - if (chart.data.datasets.length) { - for (var i = 0; i < chart.data.datasets[0].data.length; ++i) { - text.push('<li><span style="background-color:' + chart.data.datasets[0].backgroundColor[i] + '"></span>'); - if (chart.data.labels[i]) { - text.push(chart.data.labels[i]); - } - text.push('</li>'); - } - } - - text.push('</ul>'); - return text.join(""); - }, - legend: { - labels: { - generateLabels: function(chart) { - var data = chart.data; - if (data.labels.length && data.datasets.length) { - return data.labels.map(function(label, i) { - var meta = chart.getDatasetMeta(0); - var ds = data.datasets[0]; - var arc = meta.data[i]; - var fill = arc.custom && arc.custom.backgroundColor ? arc.custom.backgroundColor : helpers.getValueAtIndexOrDefault(ds.backgroundColor, i, this.chart.options.elements.arc.backgroundColor); - var stroke = arc.custom && arc.custom.borderColor ? arc.custom.borderColor : helpers.getValueAtIndexOrDefault(ds.borderColor, i, this.chart.options.elements.arc.borderColor); - var bw = arc.custom && arc.custom.borderWidth ? arc.custom.borderWidth : helpers.getValueAtIndexOrDefault(ds.borderWidth, i, this.chart.options.elements.arc.borderWidth); - - return { - text: label, - fillStyle: fill, - strokeStyle: stroke, - lineWidth: bw, - hidden: isNaN(ds.data[i]) || meta.data[i].hidden, - - // Extra data used for toggling the correct item - index: i - }; - }, this); - } else { - return []; - } - } - }, - - onClick: function(e, legendItem) { - var index = legendItem.index; - var chart = this.chart; - var i, ilen, meta; - - for (i = 0, ilen = (chart.data.datasets || []).length; i < ilen; ++i) { - meta = chart.getDatasetMeta(i); - meta.data[index].hidden = !meta.data[index].hidden; - } - - chart.update(); - } - }, - - //The percentage of the chart that we cut out of the middle. - cutoutPercentage: 50, - - //The rotation of the chart, where the first data arc begins. - rotation: Math.PI * -0.5, - - //The total circumference of the chart. - circumference: Math.PI * 2.0, - - // Need to override these to give a nice default - tooltips: { - callbacks: { - title: function() { - return ''; - }, - label: function(tooltipItem, data) { - return data.labels[tooltipItem.index] + ': ' + data.datasets[tooltipItem.datasetIndex].data[tooltipItem.index]; - } - } - } - }; - - Chart.defaults.pie = helpers.clone(Chart.defaults.doughnut); - helpers.extend(Chart.defaults.pie, { - cutoutPercentage: 0 - }); - - - Chart.controllers.doughnut = Chart.controllers.pie = Chart.DatasetController.extend({ - linkScales: function() { - // no scales for doughnut - }, - - addElements: function() { - var meta = this.getMeta(); - helpers.each(this.getDataset().data, function(value, index) { - meta.data[index] = meta.data[index] || new Chart.elements.Arc({ - _chart: this.chart.chart, - _datasetIndex: this.index, - _index: index - }); - }, this); - }, - - addElementAndReset: function(index, colorForNewElement) { - var arc = new Chart.elements.Arc({ - _chart: this.chart.chart, - _datasetIndex: this.index, - _index: index - }); - - if (colorForNewElement && helpers.isArray(this.getDataset().backgroundColor)) { - this.getDataset().backgroundColor.splice(index, 0, colorForNewElement); - } - - // Add to the points array and reset it - this.getMeta().data.splice(index, 0, arc); - this.updateElement(arc, index, true); - }, - - // Get index of the dataset in relation to the visible datasets. This allows determining the inner and outer radius correctly - getRingIndex: function getRingIndex(datasetIndex) { - var ringIndex = 0; - - for (var j = 0; j < datasetIndex; ++j) { - if (this.chart.isDatasetVisible(j)) { - ++ringIndex; - } - } - - return ringIndex; - }, - - update: function update(reset) { - var availableWidth = this.chart.chartArea.right - this.chart.chartArea.left - this.chart.options.elements.arc.borderWidth; - var availableHeight = this.chart.chartArea.bottom - this.chart.chartArea.top - this.chart.options.elements.arc.borderWidth; - var minSize = Math.min(availableWidth, availableHeight); - var offset = {x: 0, y: 0}; - - // If the chart's circumference isn't a full circle, calculate minSize as a ratio of the width/height of the arc - if (this.chart.options.circumference < Math.PI * 2.0) { - var startAngle = this.chart.options.rotation % (Math.PI * 2.0); - startAngle += Math.PI * 2.0 * (startAngle >= Math.PI ? -1 : startAngle < -Math.PI ? 1 : 0); - var endAngle = startAngle + this.chart.options.circumference; - var start = {x: Math.cos(startAngle), y: Math.sin(startAngle)}; - var end = {x: Math.cos(endAngle), y: Math.sin(endAngle)}; - var contains0 = (startAngle <= 0 && 0 <= endAngle) || (startAngle <= Math.PI * 2.0 && Math.PI * 2.0 <= endAngle); - var contains90 = (startAngle <= Math.PI * 0.5 && Math.PI * 0.5 <= endAngle) || (startAngle <= Math.PI * 2.5 && Math.PI * 2.5 <= endAngle); - var contains180 = (startAngle <= -Math.PI && -Math.PI <= endAngle) || (startAngle <= Math.PI && Math.PI <= endAngle); - var contains270 = (startAngle <= -Math.PI * 0.5 && -Math.PI * 0.5 <= endAngle) || (startAngle <= Math.PI * 1.5 && Math.PI * 1.5 <= endAngle); - var cutout = this.chart.options.cutoutPercentage / 100.0; - var min = {x: contains180 ? -1 : Math.min(start.x * (start.x < 0 ? 1 : cutout), end.x * (end.x < 0 ? 1 : cutout)), y: contains270 ? -1 : Math.min(start.y * (start.y < 0 ? 1 : cutout), end.y * (end.y < 0 ? 1 : cutout))}; - var max = {x: contains0 ? 1 : Math.max(start.x * (start.x > 0 ? 1 : cutout), end.x * (end.x > 0 ? 1 : cutout)), y: contains90 ? 1 : Math.max(start.y * (start.y > 0 ? 1 : cutout), end.y * (end.y > 0 ? 1 : cutout))}; - var size = {width: (max.x - min.x) * 0.5, height: (max.y - min.y) * 0.5}; - minSize = Math.min(availableWidth / size.width, availableHeight / size.height); - offset = {x: (max.x + min.x) * -0.5, y: (max.y + min.y) * -0.5}; - } - - this.chart.outerRadius = Math.max(minSize / 2, 0); - this.chart.innerRadius = Math.max(this.chart.options.cutoutPercentage ? (this.chart.outerRadius / 100) * (this.chart.options.cutoutPercentage) : 1, 0); - this.chart.radiusLength = (this.chart.outerRadius - this.chart.innerRadius) / this.chart.getVisibleDatasetCount(); - this.chart.offsetX = offset.x * this.chart.outerRadius; - this.chart.offsetY = offset.y * this.chart.outerRadius; - - this.getMeta().total = this.calculateTotal(); - - this.outerRadius = this.chart.outerRadius - (this.chart.radiusLength * this.getRingIndex(this.index)); - this.innerRadius = this.outerRadius - this.chart.radiusLength; - - helpers.each(this.getMeta().data, function(arc, index) { - this.updateElement(arc, index, reset); - }, this); - }, - - updateElement: function(arc, index, reset) { - var centerX = (this.chart.chartArea.left + this.chart.chartArea.right) / 2; - var centerY = (this.chart.chartArea.top + this.chart.chartArea.bottom) / 2; - var startAngle = this.chart.options.rotation; // non reset case handled later - var endAngle = this.chart.options.rotation; // non reset case handled later - var circumference = reset && this.chart.options.animation.animateRotate ? 0 : arc.hidden? 0 : this.calculateCircumference(this.getDataset().data[index]) * (this.chart.options.circumference / (2.0 * Math.PI)); - var innerRadius = reset && this.chart.options.animation.animateScale ? 0 : this.innerRadius; - var outerRadius = reset && this.chart.options.animation.animateScale ? 0 : this.outerRadius; - - helpers.extend(arc, { - // Utility - _chart: this.chart.chart, - _datasetIndex: this.index, - _index: index, - - // Desired view properties - _model: { - x: centerX + this.chart.offsetX, - y: centerY + this.chart.offsetY, - startAngle: startAngle, - endAngle: endAngle, - circumference: circumference, - outerRadius: outerRadius, - innerRadius: innerRadius, - - backgroundColor: arc.custom && arc.custom.backgroundColor ? arc.custom.backgroundColor : helpers.getValueAtIndexOrDefault(this.getDataset().backgroundColor, index, this.chart.options.elements.arc.backgroundColor), - hoverBackgroundColor: arc.custom && arc.custom.hoverBackgroundColor ? arc.custom.hoverBackgroundColor : helpers.getValueAtIndexOrDefault(this.getDataset().hoverBackgroundColor, index, this.chart.options.elements.arc.hoverBackgroundColor), - borderWidth: arc.custom && arc.custom.borderWidth ? arc.custom.borderWidth : helpers.getValueAtIndexOrDefault(this.getDataset().borderWidth, index, this.chart.options.elements.arc.borderWidth), - borderColor: arc.custom && arc.custom.borderColor ? arc.custom.borderColor : helpers.getValueAtIndexOrDefault(this.getDataset().borderColor, index, this.chart.options.elements.arc.borderColor), - - label: helpers.getValueAtIndexOrDefault(this.getDataset().label, index, this.chart.data.labels[index]) - } - }); - - // Set correct angles if not resetting - if (!reset || !this.chart.options.animation.animateRotate) { - - if (index === 0) { - arc._model.startAngle = this.chart.options.rotation; - } else { - arc._model.startAngle = this.getMeta().data[index - 1]._model.endAngle; - } - - arc._model.endAngle = arc._model.startAngle + arc._model.circumference; - } - - arc.pivot(); - }, - - draw: function(ease) { - var easingDecimal = ease || 1; - helpers.each(this.getMeta().data, function(arc, index) { - arc.transition(easingDecimal).draw(); - }); - }, - - setHoverStyle: function(arc) { - var dataset = this.chart.data.datasets[arc._datasetIndex]; - var index = arc._index; - - arc._model.backgroundColor = arc.custom && arc.custom.hoverBackgroundColor ? arc.custom.hoverBackgroundColor : helpers.getValueAtIndexOrDefault(dataset.hoverBackgroundColor, index, helpers.color(arc._model.backgroundColor).saturate(0.5).darken(0.1).rgbString()); - arc._model.borderColor = arc.custom && arc.custom.hoverBorderColor ? arc.custom.hoverBorderColor : helpers.getValueAtIndexOrDefault(dataset.hoverBorderColor, index, helpers.color(arc._model.borderColor).saturate(0.5).darken(0.1).rgbString()); - arc._model.borderWidth = arc.custom && arc.custom.hoverBorderWidth ? arc.custom.hoverBorderWidth : helpers.getValueAtIndexOrDefault(dataset.hoverBorderWidth, index, arc._model.borderWidth); - }, - - removeHoverStyle: function(arc) { - var dataset = this.chart.data.datasets[arc._datasetIndex]; - var index = arc._index; - - arc._model.backgroundColor = arc.custom && arc.custom.backgroundColor ? arc.custom.backgroundColor : helpers.getValueAtIndexOrDefault(this.getDataset().backgroundColor, index, this.chart.options.elements.arc.backgroundColor); - arc._model.borderColor = arc.custom && arc.custom.borderColor ? arc.custom.borderColor : helpers.getValueAtIndexOrDefault(this.getDataset().borderColor, index, this.chart.options.elements.arc.borderColor); - arc._model.borderWidth = arc.custom && arc.custom.borderWidth ? arc.custom.borderWidth : helpers.getValueAtIndexOrDefault(this.getDataset().borderWidth, index, this.chart.options.elements.arc.borderWidth); - }, - - calculateTotal: function() { - var dataset = this.getDataset(); - var meta = this.getMeta(); - var total = 0; - var value; - - helpers.each(meta.data, function(element, index) { - value = dataset.data[index]; - if (!isNaN(value) && !element.hidden) { - total += Math.abs(value); - } - }); - - return total; - }, - - calculateCircumference: function(value) { - var total = this.getMeta().total; - if (total > 0 && !isNaN(value)) { - return (Math.PI * 2.0) * (value / total); - } else { - return 0; - } - } - }); -}; - },{}],18:[function(require,module,exports){ -"use strict"; +"use strict"; + +module.exports = function(Chart) { + + var helpers = Chart.helpers; + + Chart.defaults.line = { + showLines: true, + + hover: { + mode: "label" + }, + + scales: { + xAxes: [{ + type: "category", + id: 'x-axis-0' + }], + yAxes: [{ + type: "linear", + id: 'y-axis-0' + }] + } + }; + + + Chart.controllers.line = Chart.DatasetController.extend({ + addElements: function() { + var meta = this.getMeta(); + meta.dataset = meta.dataset || new Chart.elements.Line({ + _chart: this.chart.chart, + _datasetIndex: this.index, + _points: meta.data + }); + + helpers.each(this.getDataset().data, function(value, index) { + meta.data[index] = meta.data[index] || new Chart.elements.Point({ + _chart: this.chart.chart, + _datasetIndex: this.index, + _index: index + }); + }, this); + }, + + addElementAndReset: function(index) { + var point = new Chart.elements.Point({ + _chart: this.chart.chart, + _datasetIndex: this.index, + _index: index + }); + + // Add to the points array and reset it + this.getMeta().data.splice(index, 0, point); + this.updateElement(point, index, true); + + // Make sure bezier control points are updated + if (this.chart.options.showLines && this.chart.options.elements.line.tension !== 0) + this.updateBezierControlPoints(); + }, + + update: function update(reset) { + var meta = this.getMeta(); + var line = meta.dataset; + var points = meta.data; + + var yScale = this.getScaleForId(meta.yAxisID); + var xScale = this.getScaleForId(meta.xAxisID); + var scaleBase; + + if (yScale.min < 0 && yScale.max < 0) { + scaleBase = yScale.getPixelForValue(yScale.max); + } else if (yScale.min > 0 && yScale.max > 0) { + scaleBase = yScale.getPixelForValue(yScale.min); + } else { + scaleBase = yScale.getPixelForValue(0); + } + + // Update Line + if (this.chart.options.showLines) { + // Utility + line._scale = yScale; + line._datasetIndex = this.index; + // Data + line._children = points; + // Model + + // Compatibility: If the properties are defined with only the old name, use those values + if ((this.getDataset().tension !== undefined) && (this.getDataset().lineTension === undefined)) + { + this.getDataset().lineTension = this.getDataset().tension; + } + + line._model = { + // Appearance + tension: line.custom && line.custom.tension ? line.custom.tension : helpers.getValueOrDefault(this.getDataset().lineTension, this.chart.options.elements.line.tension), + backgroundColor: line.custom && line.custom.backgroundColor ? line.custom.backgroundColor : (this.getDataset().backgroundColor || this.chart.options.elements.line.backgroundColor), + borderWidth: line.custom && line.custom.borderWidth ? line.custom.borderWidth : (this.getDataset().borderWidth || this.chart.options.elements.line.borderWidth), + borderColor: line.custom && line.custom.borderColor ? line.custom.borderColor : (this.getDataset().borderColor || this.chart.options.elements.line.borderColor), + borderCapStyle: line.custom && line.custom.borderCapStyle ? line.custom.borderCapStyle : (this.getDataset().borderCapStyle || this.chart.options.elements.line.borderCapStyle), + borderDash: line.custom && line.custom.borderDash ? line.custom.borderDash : (this.getDataset().borderDash || this.chart.options.elements.line.borderDash), + borderDashOffset: line.custom && line.custom.borderDashOffset ? line.custom.borderDashOffset : (this.getDataset().borderDashOffset || this.chart.options.elements.line.borderDashOffset), + borderJoinStyle: line.custom && line.custom.borderJoinStyle ? line.custom.borderJoinStyle : (this.getDataset().borderJoinStyle || this.chart.options.elements.line.borderJoinStyle), + fill: line.custom && line.custom.fill ? line.custom.fill : (this.getDataset().fill !== undefined ? this.getDataset().fill : this.chart.options.elements.line.fill), + // Scale + scaleTop: yScale.top, + scaleBottom: yScale.bottom, + scaleZero: scaleBase + }; + line.pivot(); + } + + // Update Points + helpers.each(points, function(point, index) { + this.updateElement(point, index, reset); + }, this); + + if (this.chart.options.showLines && this.chart.options.elements.line.tension !== 0) + this.updateBezierControlPoints(); + }, + + getPointBackgroundColor: function(point, index) { + var backgroundColor = this.chart.options.elements.point.backgroundColor; + var dataset = this.getDataset(); + + if (point.custom && point.custom.backgroundColor) { + backgroundColor = point.custom.backgroundColor; + } else if (dataset.pointBackgroundColor) { + backgroundColor = helpers.getValueAtIndexOrDefault(dataset.pointBackgroundColor, index, backgroundColor); + } else if (dataset.backgroundColor) { + backgroundColor = dataset.backgroundColor; + } + + return backgroundColor; + }, + getPointBorderColor: function(point, index) { + var borderColor = this.chart.options.elements.point.borderColor; + var dataset = this.getDataset(); + + if (point.custom && point.custom.borderColor) { + borderColor = point.custom.borderColor; + } else if (dataset.pointBorderColor) { + borderColor = helpers.getValueAtIndexOrDefault(this.getDataset().pointBorderColor, index, borderColor); + } else if (dataset.borderColor) { + borderColor = dataset.borderColor; + } + + return borderColor; + }, + getPointBorderWidth: function(point, index) { + var borderWidth = this.chart.options.elements.point.borderWidth; + var dataset = this.getDataset(); + + if (point.custom && point.custom.borderWidth !== undefined) { + borderWidth = point.custom.borderWidth; + } else if (dataset.pointBorderWidth !== undefined) { + borderWidth = helpers.getValueAtIndexOrDefault(dataset.pointBorderWidth, index, borderWidth); + } else if (dataset.borderWidth !== undefined) { + borderWidth = dataset.borderWidth; + } + + return borderWidth; + }, + + updateElement: function(point, index, reset) { + var meta = this.getMeta(); + var yScale = this.getScaleForId(meta.yAxisID); + var xScale = this.getScaleForId(meta.xAxisID); + var scaleBase; + + if (yScale.min < 0 && yScale.max < 0) { + scaleBase = yScale.getPixelForValue(yScale.max); + } else if (yScale.min > 0 && yScale.max > 0) { + scaleBase = yScale.getPixelForValue(yScale.min); + } else { + scaleBase = yScale.getPixelForValue(0); + } + + // Utility + point._chart = this.chart.chart; + point._xScale = xScale; + point._yScale = yScale; + point._datasetIndex = this.index; + point._index = index; + + // Desired view properties + + // Compatibility: If the properties are defined with only the old name, use those values + if ((this.getDataset().radius !== undefined) && (this.getDataset().pointRadius === undefined)) + { + this.getDataset().pointRadius = this.getDataset().radius; + } + if ((this.getDataset().hitRadius !== undefined) && (this.getDataset().pointHitRadius === undefined)) + { + this.getDataset().pointHitRadius = this.getDataset().hitRadius; + } + + point._model = { + x: xScale.getPixelForValue(this.getDataset().data[index], index, this.index, this.chart.isCombo), + y: reset ? scaleBase : this.calculatePointY(this.getDataset().data[index], index, this.index, this.chart.isCombo), + // Appearance + radius: point.custom && point.custom.radius ? point.custom.radius : helpers.getValueAtIndexOrDefault(this.getDataset().pointRadius, index, this.chart.options.elements.point.radius), + pointStyle: point.custom && point.custom.pointStyle ? point.custom.pointStyle : helpers.getValueAtIndexOrDefault(this.getDataset().pointStyle, index, this.chart.options.elements.point.pointStyle), + backgroundColor: this.getPointBackgroundColor(point, index), + borderColor: this.getPointBorderColor(point, index), + borderWidth: this.getPointBorderWidth(point, index), + tension: meta.dataset._model ? meta.dataset._model.tension : 0, + // Tooltip + hitRadius: point.custom && point.custom.hitRadius ? point.custom.hitRadius : helpers.getValueAtIndexOrDefault(this.getDataset().pointHitRadius, index, this.chart.options.elements.point.hitRadius) + }; + + point._model.skip = point.custom && point.custom.skip ? point.custom.skip : (isNaN(point._model.x) || isNaN(point._model.y)); + }, + + calculatePointY: function(value, index, datasetIndex, isCombo) { + var meta = this.getMeta(); + var xScale = this.getScaleForId(meta.xAxisID); + var yScale = this.getScaleForId(meta.yAxisID); + + if (yScale.options.stacked) { + + var sumPos = 0, + sumNeg = 0; + + for (var i = 0; i < datasetIndex; i++) { + var ds = this.chart.data.datasets[i]; + var dsMeta = this.chart.getDatasetMeta(i); + if (dsMeta.type === 'line' && this.chart.isDatasetVisible(i)) { + if (ds.data[index] < 0) { + sumNeg += ds.data[index] || 0; + } else { + sumPos += ds.data[index] || 0; + } + } + } + + if (value < 0) { + return yScale.getPixelForValue(sumNeg + value); + } else { + return yScale.getPixelForValue(sumPos + value); + } + } + + return yScale.getPixelForValue(value); + }, + + updateBezierControlPoints: function() { + // Update bezier control points + var meta = this.getMeta(); + helpers.each(meta.data, function(point, index) { + var controlPoints = helpers.splineCurve( + helpers.previousItem(meta.data, index)._model, + point._model, + helpers.nextItem(meta.data, index)._model, + meta.dataset._model.tension + ); + + // Prevent the bezier going outside of the bounds of the graph + point._model.controlPointPreviousX = Math.max(Math.min(controlPoints.previous.x, this.chart.chartArea.right), this.chart.chartArea.left); + point._model.controlPointPreviousY = Math.max(Math.min(controlPoints.previous.y, this.chart.chartArea.bottom), this.chart.chartArea.top); + + point._model.controlPointNextX = Math.max(Math.min(controlPoints.next.x, this.chart.chartArea.right), this.chart.chartArea.left); + point._model.controlPointNextY = Math.max(Math.min(controlPoints.next.y, this.chart.chartArea.bottom), this.chart.chartArea.top); + + // Now pivot the point for animation + point.pivot(); + }, this); + }, + + draw: function(ease) { + var meta = this.getMeta(); + var easingDecimal = ease || 1; + + // Transition Point Locations + helpers.each(meta.data, function(point) { + point.transition(easingDecimal); + }); + + // Transition and Draw the line + if (this.chart.options.showLines) + meta.dataset.transition(easingDecimal).draw(); + + // Draw the points + helpers.each(meta.data, function(point) { + point.draw(); + }); + }, + + setHoverStyle: function(point) { + // Point + var dataset = this.chart.data.datasets[point._datasetIndex]; + var index = point._index; + + point._model.radius = point.custom && point.custom.hoverRadius ? point.custom.hoverRadius : helpers.getValueAtIndexOrDefault(dataset.pointHoverRadius, index, this.chart.options.elements.point.hoverRadius); + point._model.backgroundColor = point.custom && point.custom.hoverBackgroundColor ? point.custom.hoverBackgroundColor : helpers.getValueAtIndexOrDefault(dataset.pointHoverBackgroundColor, index, helpers.getHoverColor(point._model.backgroundColor)); + point._model.borderColor = point.custom && point.custom.hoverBorderColor ? point.custom.hoverBorderColor : helpers.getValueAtIndexOrDefault(dataset.pointHoverBorderColor, index, helpers.getHoverColor(point._model.borderColor)); + point._model.borderWidth = point.custom && point.custom.hoverBorderWidth ? point.custom.hoverBorderWidth : helpers.getValueAtIndexOrDefault(dataset.pointHoverBorderWidth, index, point._model.borderWidth); + }, + + removeHoverStyle: function(point) { + var dataset = this.chart.data.datasets[point._datasetIndex]; + var index = point._index; + + // Compatibility: If the properties are defined with only the old name, use those values + if ((this.getDataset().radius !== undefined) && (this.getDataset().pointRadius === undefined)) + { + this.getDataset().pointRadius = this.getDataset().radius; + } + + point._model.radius = point.custom && point.custom.radius ? point.custom.radius : helpers.getValueAtIndexOrDefault(this.getDataset().pointRadius, index, this.chart.options.elements.point.radius); + point._model.backgroundColor = this.getPointBackgroundColor(point, index); + point._model.borderColor = this.getPointBorderColor(point, index); + point._model.borderWidth = this.getPointBorderWidth(point, index); + } + }); +}; -module.exports = function(Chart) { - - var helpers = Chart.helpers; - - Chart.defaults.line = { - showLines: true, - - hover: { - mode: "label" - }, - - scales: { - xAxes: [{ - type: "category", - id: 'x-axis-0' - }], - yAxes: [{ - type: "linear", - id: 'y-axis-0' - }] - } - }; - - - Chart.controllers.line = Chart.DatasetController.extend({ - addElements: function() { - var meta = this.getMeta(); - meta.dataset = meta.dataset || new Chart.elements.Line({ - _chart: this.chart.chart, - _datasetIndex: this.index, - _points: meta.data - }); - - helpers.each(this.getDataset().data, function(value, index) { - meta.data[index] = meta.data[index] || new Chart.elements.Point({ - _chart: this.chart.chart, - _datasetIndex: this.index, - _index: index - }); - }, this); - }, - - addElementAndReset: function(index) { - var point = new Chart.elements.Point({ - _chart: this.chart.chart, - _datasetIndex: this.index, - _index: index - }); - - // Add to the points array and reset it - this.getMeta().data.splice(index, 0, point); - this.updateElement(point, index, true); - - // Make sure bezier control points are updated - if (this.chart.options.showLines && this.chart.options.elements.line.tension !== 0) - this.updateBezierControlPoints(); - }, - - update: function update(reset) { - var meta = this.getMeta(); - var line = meta.dataset; - var points = meta.data; - - var yScale = this.getScaleForId(meta.yAxisID); - var xScale = this.getScaleForId(meta.xAxisID); - var scaleBase; - - if (yScale.min < 0 && yScale.max < 0) { - scaleBase = yScale.getPixelForValue(yScale.max); - } else if (yScale.min > 0 && yScale.max > 0) { - scaleBase = yScale.getPixelForValue(yScale.min); - } else { - scaleBase = yScale.getPixelForValue(0); - } - - // Update Line - if (this.chart.options.showLines) { - // Utility - line._scale = yScale; - line._datasetIndex = this.index; - // Data - line._children = points; - // Model - - // Compatibility: If the properties are defined with only the old name, use those values - if ((this.getDataset().tension !== undefined) && (this.getDataset().lineTension === undefined)) - { - this.getDataset().lineTension = this.getDataset().tension; - } - - line._model = { - // Appearance - tension: line.custom && line.custom.tension ? line.custom.tension : helpers.getValueOrDefault(this.getDataset().lineTension, this.chart.options.elements.line.tension), - backgroundColor: line.custom && line.custom.backgroundColor ? line.custom.backgroundColor : (this.getDataset().backgroundColor || this.chart.options.elements.line.backgroundColor), - borderWidth: line.custom && line.custom.borderWidth ? line.custom.borderWidth : (this.getDataset().borderWidth || this.chart.options.elements.line.borderWidth), - borderColor: line.custom && line.custom.borderColor ? line.custom.borderColor : (this.getDataset().borderColor || this.chart.options.elements.line.borderColor), - borderCapStyle: line.custom && line.custom.borderCapStyle ? line.custom.borderCapStyle : (this.getDataset().borderCapStyle || this.chart.options.elements.line.borderCapStyle), - borderDash: line.custom && line.custom.borderDash ? line.custom.borderDash : (this.getDataset().borderDash || this.chart.options.elements.line.borderDash), - borderDashOffset: line.custom && line.custom.borderDashOffset ? line.custom.borderDashOffset : (this.getDataset().borderDashOffset || this.chart.options.elements.line.borderDashOffset), - borderJoinStyle: line.custom && line.custom.borderJoinStyle ? line.custom.borderJoinStyle : (this.getDataset().borderJoinStyle || this.chart.options.elements.line.borderJoinStyle), - fill: line.custom && line.custom.fill ? line.custom.fill : (this.getDataset().fill !== undefined ? this.getDataset().fill : this.chart.options.elements.line.fill), - // Scale - scaleTop: yScale.top, - scaleBottom: yScale.bottom, - scaleZero: scaleBase - }; - line.pivot(); - } - - // Update Points - helpers.each(points, function(point, index) { - this.updateElement(point, index, reset); - }, this); - - if (this.chart.options.showLines && this.chart.options.elements.line.tension !== 0) - this.updateBezierControlPoints(); - }, - - getPointBackgroundColor: function(point, index) { - var backgroundColor = this.chart.options.elements.point.backgroundColor; - var dataset = this.getDataset(); - - if (point.custom && point.custom.backgroundColor) { - backgroundColor = point.custom.backgroundColor; - } else if (dataset.pointBackgroundColor) { - backgroundColor = helpers.getValueAtIndexOrDefault(dataset.pointBackgroundColor, index, backgroundColor); - } else if (dataset.backgroundColor) { - backgroundColor = dataset.backgroundColor; - } - - return backgroundColor; - }, - getPointBorderColor: function(point, index) { - var borderColor = this.chart.options.elements.point.borderColor; - var dataset = this.getDataset(); - - if (point.custom && point.custom.borderColor) { - borderColor = point.custom.borderColor; - } else if (dataset.pointBorderColor) { - borderColor = helpers.getValueAtIndexOrDefault(this.getDataset().pointBorderColor, index, borderColor); - } else if (dataset.borderColor) { - borderColor = dataset.borderColor; - } - - return borderColor; - }, - getPointBorderWidth: function(point, index) { - var borderWidth = this.chart.options.elements.point.borderWidth; - var dataset = this.getDataset(); - - if (point.custom && point.custom.borderWidth !== undefined) { - borderWidth = point.custom.borderWidth; - } else if (dataset.pointBorderWidth !== undefined) { - borderWidth = helpers.getValueAtIndexOrDefault(dataset.pointBorderWidth, index, borderWidth); - } else if (dataset.borderWidth !== undefined) { - borderWidth = dataset.borderWidth; - } - - return borderWidth; - }, - - updateElement: function(point, index, reset) { - var meta = this.getMeta(); - var yScale = this.getScaleForId(meta.yAxisID); - var xScale = this.getScaleForId(meta.xAxisID); - var scaleBase; - - if (yScale.min < 0 && yScale.max < 0) { - scaleBase = yScale.getPixelForValue(yScale.max); - } else if (yScale.min > 0 && yScale.max > 0) { - scaleBase = yScale.getPixelForValue(yScale.min); - } else { - scaleBase = yScale.getPixelForValue(0); - } - - // Utility - point._chart = this.chart.chart; - point._xScale = xScale; - point._yScale = yScale; - point._datasetIndex = this.index; - point._index = index; - - // Desired view properties - - // Compatibility: If the properties are defined with only the old name, use those values - if ((this.getDataset().radius !== undefined) && (this.getDataset().pointRadius === undefined)) - { - this.getDataset().pointRadius = this.getDataset().radius; - } - if ((this.getDataset().hitRadius !== undefined) && (this.getDataset().pointHitRadius === undefined)) - { - this.getDataset().pointHitRadius = this.getDataset().hitRadius; - } - - point._model = { - x: xScale.getPixelForValue(this.getDataset().data[index], index, this.index, this.chart.isCombo), - y: reset ? scaleBase : this.calculatePointY(this.getDataset().data[index], index, this.index, this.chart.isCombo), - // Appearance - radius: point.custom && point.custom.radius ? point.custom.radius : helpers.getValueAtIndexOrDefault(this.getDataset().pointRadius, index, this.chart.options.elements.point.radius), - pointStyle: point.custom && point.custom.pointStyle ? point.custom.pointStyle : helpers.getValueAtIndexOrDefault(this.getDataset().pointStyle, index, this.chart.options.elements.point.pointStyle), - backgroundColor: this.getPointBackgroundColor(point, index), - borderColor: this.getPointBorderColor(point, index), - borderWidth: this.getPointBorderWidth(point, index), - // Tooltip - hitRadius: point.custom && point.custom.hitRadius ? point.custom.hitRadius : helpers.getValueAtIndexOrDefault(this.getDataset().pointHitRadius, index, this.chart.options.elements.point.hitRadius) - }; - - point._model.skip = point.custom && point.custom.skip ? point.custom.skip : (isNaN(point._model.x) || isNaN(point._model.y)); - }, - - calculatePointY: function(value, index, datasetIndex, isCombo) { - var meta = this.getMeta(); - var xScale = this.getScaleForId(meta.xAxisID); - var yScale = this.getScaleForId(meta.yAxisID); - - if (yScale.options.stacked) { - - var sumPos = 0, - sumNeg = 0; - - for (var i = 0; i < datasetIndex; i++) { - var ds = this.chart.data.datasets[i]; - var dsMeta = this.chart.getDatasetMeta(i); - if (dsMeta.type === 'line' && this.chart.isDatasetVisible(i)) { - if (ds.data[index] < 0) { - sumNeg += ds.data[index] || 0; - } else { - sumPos += ds.data[index] || 0; - } - } - } - - if (value < 0) { - return yScale.getPixelForValue(sumNeg + value); - } else { - return yScale.getPixelForValue(sumPos + value); - } - } - - return yScale.getPixelForValue(value); - }, - - updateBezierControlPoints: function() { - // Update bezier control points - var meta = this.getMeta(); - helpers.each(meta.data, function(point, index) { - var controlPoints = helpers.splineCurve( - helpers.previousItem(meta.data, index)._model, - point._model, - helpers.nextItem(meta.data, index)._model, - meta.dataset._model.tension - ); - - // Prevent the bezier going outside of the bounds of the graph - point._model.controlPointPreviousX = Math.max(Math.min(controlPoints.previous.x, this.chart.chartArea.right), this.chart.chartArea.left); - point._model.controlPointPreviousY = Math.max(Math.min(controlPoints.previous.y, this.chart.chartArea.bottom), this.chart.chartArea.top); - - point._model.controlPointNextX = Math.max(Math.min(controlPoints.next.x, this.chart.chartArea.right), this.chart.chartArea.left); - point._model.controlPointNextY = Math.max(Math.min(controlPoints.next.y, this.chart.chartArea.bottom), this.chart.chartArea.top); - - // Now pivot the point for animation - point.pivot(); - }, this); - }, - - draw: function(ease) { - var meta = this.getMeta(); - var easingDecimal = ease || 1; - - // Transition Point Locations - helpers.each(meta.data, function(point) { - point.transition(easingDecimal); - }); - - // Transition and Draw the line - if (this.chart.options.showLines) - meta.dataset.transition(easingDecimal).draw(); - - // Draw the points - helpers.each(meta.data, function(point) { - point.draw(); - }); - }, - - setHoverStyle: function(point) { - // Point - var dataset = this.chart.data.datasets[point._datasetIndex]; - var index = point._index; - - point._model.radius = point.custom && point.custom.hoverRadius ? point.custom.hoverRadius : helpers.getValueAtIndexOrDefault(dataset.pointHoverRadius, index, this.chart.options.elements.point.hoverRadius); - point._model.backgroundColor = point.custom && point.custom.hoverBackgroundColor ? point.custom.hoverBackgroundColor : helpers.getValueAtIndexOrDefault(dataset.pointHoverBackgroundColor, index, helpers.color(point._model.backgroundColor).saturate(0.5).darken(0.1).rgbString()); - point._model.borderColor = point.custom && point.custom.hoverBorderColor ? point.custom.hoverBorderColor : helpers.getValueAtIndexOrDefault(dataset.pointHoverBorderColor, index, helpers.color(point._model.borderColor).saturate(0.5).darken(0.1).rgbString()); - point._model.borderWidth = point.custom && point.custom.hoverBorderWidth ? point.custom.hoverBorderWidth : helpers.getValueAtIndexOrDefault(dataset.pointHoverBorderWidth, index, point._model.borderWidth); - }, - - removeHoverStyle: function(point) { - var dataset = this.chart.data.datasets[point._datasetIndex]; - var index = point._index; - - // Compatibility: If the properties are defined with only the old name, use those values - if ((this.getDataset().radius !== undefined) && (this.getDataset().pointRadius === undefined)) - { - this.getDataset().pointRadius = this.getDataset().radius; - } - - point._model.radius = point.custom && point.custom.radius ? point.custom.radius : helpers.getValueAtIndexOrDefault(this.getDataset().pointRadius, index, this.chart.options.elements.point.radius); - point._model.backgroundColor = this.getPointBackgroundColor(point, index); - point._model.borderColor = this.getPointBorderColor(point, index); - point._model.borderWidth = this.getPointBorderWidth(point, index); - } - }); -}; - },{}],19:[function(require,module,exports){ -"use strict"; +"use strict"; + +module.exports = function(Chart) { + + var helpers = Chart.helpers; + + Chart.defaults.polarArea = { + + scale: { + type: "radialLinear", + lineArc: true // so that lines are circular + }, + + //Boolean - Whether to animate the rotation of the chart + animation: { + animateRotate: true, + animateScale: true + }, + + aspectRatio: 1, + legendCallback: function(chart) { + var text = []; + text.push('<ul class="' + chart.id + '-legend">'); + + if (chart.data.datasets.length) { + for (var i = 0; i < chart.data.datasets[0].data.length; ++i) { + text.push('<li><span style="background-color:' + chart.data.datasets[0].backgroundColor[i] + '">'); + if (chart.data.labels[i]) { + text.push(chart.data.labels[i]); + } + text.push('</span></li>'); + } + } + + text.push('</ul>'); + return text.join(""); + }, + legend: { + labels: { + generateLabels: function(chart) { + var data = chart.data; + if (data.labels.length && data.datasets.length) { + return data.labels.map(function(label, i) { + var meta = chart.getDatasetMeta(0); + var ds = data.datasets[0]; + var arc = meta.data[i]; + var fill = arc.custom && arc.custom.backgroundColor ? arc.custom.backgroundColor : helpers.getValueAtIndexOrDefault(ds.backgroundColor, i, this.chart.options.elements.arc.backgroundColor); + var stroke = arc.custom && arc.custom.borderColor ? arc.custom.borderColor : helpers.getValueAtIndexOrDefault(ds.borderColor, i, this.chart.options.elements.arc.borderColor); + var bw = arc.custom && arc.custom.borderWidth ? arc.custom.borderWidth : helpers.getValueAtIndexOrDefault(ds.borderWidth, i, this.chart.options.elements.arc.borderWidth); + + return { + text: label, + fillStyle: fill, + strokeStyle: stroke, + lineWidth: bw, + hidden: isNaN(ds.data[i]) || meta.data[i].hidden, + + // Extra data used for toggling the correct item + index: i + }; + }, this); + } else { + return []; + } + } + }, + + onClick: function(e, legendItem) { + var index = legendItem.index; + var chart = this.chart; + var i, ilen, meta; + + for (i = 0, ilen = (chart.data.datasets || []).length; i < ilen; ++i) { + meta = chart.getDatasetMeta(i); + meta.data[index].hidden = !meta.data[index].hidden; + } + + chart.update(); + } + }, + + // Need to override these to give a nice default + tooltips: { + callbacks: { + title: function() { + return ''; + }, + label: function(tooltipItem, data) { + return data.labels[tooltipItem.index] + ': ' + tooltipItem.yLabel; + } + } + } + }; + + Chart.controllers.polarArea = Chart.DatasetController.extend({ + linkScales: function() { + // no scales for doughnut + }, + + addElements: function() { + var meta = this.getMeta(); + helpers.each(this.getDataset().data, function(value, index) { + meta.data[index] = meta.data[index] || new Chart.elements.Arc({ + _chart: this.chart.chart, + _datasetIndex: this.index, + _index: index + }); + }, this); + }, + + addElementAndReset: function(index) { + var arc = new Chart.elements.Arc({ + _chart: this.chart.chart, + _datasetIndex: this.index, + _index: index + }); + + // Add to the points array and reset it + this.getMeta().data.splice(index, 0, arc); + this.updateElement(arc, index, true); + }, + + update: function update(reset) { + var meta = this.getMeta(); + var minSize = Math.min(this.chart.chartArea.right - this.chart.chartArea.left, this.chart.chartArea.bottom - this.chart.chartArea.top); + this.chart.outerRadius = Math.max((minSize - this.chart.options.elements.arc.borderWidth / 2) / 2, 0); + this.chart.innerRadius = Math.max(this.chart.options.cutoutPercentage ? (this.chart.outerRadius / 100) * (this.chart.options.cutoutPercentage) : 1, 0); + this.chart.radiusLength = (this.chart.outerRadius - this.chart.innerRadius) / this.chart.getVisibleDatasetCount(); + + this.outerRadius = this.chart.outerRadius - (this.chart.radiusLength * this.index); + this.innerRadius = this.outerRadius - this.chart.radiusLength; + + meta.count = this.countVisibleElements(); + + helpers.each(meta.data, function(arc, index) { + this.updateElement(arc, index, reset); + }, this); + }, + + updateElement: function(arc, index, reset) { + var circumference = this.calculateCircumference(this.getDataset().data[index]); + var centerX = (this.chart.chartArea.left + this.chart.chartArea.right) / 2; + var centerY = (this.chart.chartArea.top + this.chart.chartArea.bottom) / 2; + + // If there is NaN data before us, we need to calculate the starting angle correctly. + // We could be way more efficient here, but its unlikely that the polar area chart will have a lot of data + var visibleCount = 0; + var meta = this.getMeta(); + for (var i = 0; i < index; ++i) { + if (!isNaN(this.getDataset().data[i]) && !meta.data[i].hidden) { + ++visibleCount; + } + } + + var distance = arc.hidden? 0 : this.chart.scale.getDistanceFromCenterForValue(this.getDataset().data[index]); + var startAngle = (-0.5 * Math.PI) + (circumference * visibleCount); + var endAngle = startAngle + (arc.hidden? 0 : circumference); + + var resetModel = { + x: centerX, + y: centerY, + innerRadius: 0, + outerRadius: this.chart.options.animation.animateScale ? 0 : this.chart.scale.getDistanceFromCenterForValue(this.getDataset().data[index]), + startAngle: this.chart.options.animation.animateRotate ? Math.PI * -0.5 : startAngle, + endAngle: this.chart.options.animation.animateRotate ? Math.PI * -0.5 : endAngle, + + backgroundColor: arc.custom && arc.custom.backgroundColor ? arc.custom.backgroundColor : helpers.getValueAtIndexOrDefault(this.getDataset().backgroundColor, index, this.chart.options.elements.arc.backgroundColor), + borderWidth: arc.custom && arc.custom.borderWidth ? arc.custom.borderWidth : helpers.getValueAtIndexOrDefault(this.getDataset().borderWidth, index, this.chart.options.elements.arc.borderWidth), + borderColor: arc.custom && arc.custom.borderColor ? arc.custom.borderColor : helpers.getValueAtIndexOrDefault(this.getDataset().borderColor, index, this.chart.options.elements.arc.borderColor), + + label: helpers.getValueAtIndexOrDefault(this.chart.data.labels, index, this.chart.data.labels[index]) + }; + + helpers.extend(arc, { + // Utility + _chart: this.chart.chart, + _datasetIndex: this.index, + _index: index, + _scale: this.chart.scale, + + // Desired view properties + _model: reset ? resetModel : { + x: centerX, + y: centerY, + innerRadius: 0, + outerRadius: distance, + startAngle: startAngle, + endAngle: endAngle, + + backgroundColor: arc.custom && arc.custom.backgroundColor ? arc.custom.backgroundColor : helpers.getValueAtIndexOrDefault(this.getDataset().backgroundColor, index, this.chart.options.elements.arc.backgroundColor), + borderWidth: arc.custom && arc.custom.borderWidth ? arc.custom.borderWidth : helpers.getValueAtIndexOrDefault(this.getDataset().borderWidth, index, this.chart.options.elements.arc.borderWidth), + borderColor: arc.custom && arc.custom.borderColor ? arc.custom.borderColor : helpers.getValueAtIndexOrDefault(this.getDataset().borderColor, index, this.chart.options.elements.arc.borderColor), + + label: helpers.getValueAtIndexOrDefault(this.chart.data.labels, index, this.chart.data.labels[index]) + } + }); + + arc.pivot(); + }, + + draw: function(ease) { + var easingDecimal = ease || 1; + helpers.each(this.getMeta().data, function(arc, index) { + arc.transition(easingDecimal).draw(); + }); + }, + + setHoverStyle: function(arc) { + var dataset = this.chart.data.datasets[arc._datasetIndex]; + var index = arc._index; + + arc._model.backgroundColor = arc.custom && arc.custom.hoverBackgroundColor ? arc.custom.hoverBackgroundColor : helpers.getValueAtIndexOrDefault(dataset.hoverBackgroundColor, index, helpers.getHoverColor(arc._model.backgroundColor)); + arc._model.borderColor = arc.custom && arc.custom.hoverBorderColor ? arc.custom.hoverBorderColor : helpers.getValueAtIndexOrDefault(dataset.hoverBorderColor, index, helpers.getHoverColor(arc._model.borderColor)); + arc._model.borderWidth = arc.custom && arc.custom.hoverBorderWidth ? arc.custom.hoverBorderWidth : helpers.getValueAtIndexOrDefault(dataset.hoverBorderWidth, index, arc._model.borderWidth); + }, + + removeHoverStyle: function(arc) { + var dataset = this.chart.data.datasets[arc._datasetIndex]; + var index = arc._index; + + arc._model.backgroundColor = arc.custom && arc.custom.backgroundColor ? arc.custom.backgroundColor : helpers.getValueAtIndexOrDefault(this.getDataset().backgroundColor, index, this.chart.options.elements.arc.backgroundColor); + arc._model.borderColor = arc.custom && arc.custom.borderColor ? arc.custom.borderColor : helpers.getValueAtIndexOrDefault(this.getDataset().borderColor, index, this.chart.options.elements.arc.borderColor); + arc._model.borderWidth = arc.custom && arc.custom.borderWidth ? arc.custom.borderWidth : helpers.getValueAtIndexOrDefault(this.getDataset().borderWidth, index, this.chart.options.elements.arc.borderWidth); + }, + + countVisibleElements: function() { + var dataset = this.getDataset(); + var meta = this.getMeta(); + var count = 0; + + helpers.each(meta.data, function(element, index) { + if (!isNaN(dataset.data[index]) && !element.hidden) { + count++; + } + }); + + return count; + }, + + calculateCircumference: function(value) { + var count = this.getMeta().count; + if (count > 0 && !isNaN(value)) { + return (2 * Math.PI) / count; + } else { + return 0; + } + } + }); +}; -module.exports = function(Chart) { - - var helpers = Chart.helpers; - - Chart.defaults.polarArea = { - - scale: { - type: "radialLinear", - lineArc: true // so that lines are circular - }, - - //Boolean - Whether to animate the rotation of the chart - animation: { - animateRotate: true, - animateScale: true - }, - - aspectRatio: 1, - legendCallback: function(chart) { - var text = []; - text.push('<ul class="' + chart.id + '-legend">'); - - if (chart.data.datasets.length) { - for (var i = 0; i < chart.data.datasets[0].data.length; ++i) { - text.push('<li><span style="background-color:' + chart.data.datasets[0].backgroundColor[i] + '">'); - if (chart.data.labels[i]) { - text.push(chart.data.labels[i]); - } - text.push('</span></li>'); - } - } - - text.push('</ul>'); - return text.join(""); - }, - legend: { - labels: { - generateLabels: function(chart) { - var data = chart.data; - if (data.labels.length && data.datasets.length) { - return data.labels.map(function(label, i) { - var meta = chart.getDatasetMeta(0); - var ds = data.datasets[0]; - var arc = meta.data[i]; - var fill = arc.custom && arc.custom.backgroundColor ? arc.custom.backgroundColor : helpers.getValueAtIndexOrDefault(ds.backgroundColor, i, this.chart.options.elements.arc.backgroundColor); - var stroke = arc.custom && arc.custom.borderColor ? arc.custom.borderColor : helpers.getValueAtIndexOrDefault(ds.borderColor, i, this.chart.options.elements.arc.borderColor); - var bw = arc.custom && arc.custom.borderWidth ? arc.custom.borderWidth : helpers.getValueAtIndexOrDefault(ds.borderWidth, i, this.chart.options.elements.arc.borderWidth); - - return { - text: label, - fillStyle: fill, - strokeStyle: stroke, - lineWidth: bw, - hidden: isNaN(ds.data[i]) || meta.data[i].hidden, - - // Extra data used for toggling the correct item - index: i - }; - }, this); - } else { - return []; - } - } - }, - - onClick: function(e, legendItem) { - var index = legendItem.index; - var chart = this.chart; - var i, ilen, meta; - - for (i = 0, ilen = (chart.data.datasets || []).length; i < ilen; ++i) { - meta = chart.getDatasetMeta(i); - meta.data[index].hidden = !meta.data[index].hidden; - } - - chart.update(); - } - }, - - // Need to override these to give a nice default - tooltips: { - callbacks: { - title: function() { - return ''; - }, - label: function(tooltipItem, data) { - return data.labels[tooltipItem.index] + ': ' + tooltipItem.yLabel; - } - } - } - }; - - Chart.controllers.polarArea = Chart.DatasetController.extend({ - linkScales: function() { - // no scales for doughnut - }, - - addElements: function() { - var meta = this.getMeta(); - helpers.each(this.getDataset().data, function(value, index) { - meta.data[index] = meta.data[index] || new Chart.elements.Arc({ - _chart: this.chart.chart, - _datasetIndex: this.index, - _index: index - }); - }, this); - }, - - addElementAndReset: function(index) { - var arc = new Chart.elements.Arc({ - _chart: this.chart.chart, - _datasetIndex: this.index, - _index: index - }); - - // Add to the points array and reset it - this.getMeta().data.splice(index, 0, arc); - this.updateElement(arc, index, true); - }, - - update: function update(reset) { - var meta = this.getMeta(); - var minSize = Math.min(this.chart.chartArea.right - this.chart.chartArea.left, this.chart.chartArea.bottom - this.chart.chartArea.top); - this.chart.outerRadius = Math.max((minSize - this.chart.options.elements.arc.borderWidth / 2) / 2, 0); - this.chart.innerRadius = Math.max(this.chart.options.cutoutPercentage ? (this.chart.outerRadius / 100) * (this.chart.options.cutoutPercentage) : 1, 0); - this.chart.radiusLength = (this.chart.outerRadius - this.chart.innerRadius) / this.chart.getVisibleDatasetCount(); - - this.outerRadius = this.chart.outerRadius - (this.chart.radiusLength * this.index); - this.innerRadius = this.outerRadius - this.chart.radiusLength; - - meta.count = this.countVisibleElements(); - - helpers.each(meta.data, function(arc, index) { - this.updateElement(arc, index, reset); - }, this); - }, - - updateElement: function(arc, index, reset) { - var circumference = this.calculateCircumference(this.getDataset().data[index]); - var centerX = (this.chart.chartArea.left + this.chart.chartArea.right) / 2; - var centerY = (this.chart.chartArea.top + this.chart.chartArea.bottom) / 2; - - // If there is NaN data before us, we need to calculate the starting angle correctly. - // We could be way more efficient here, but its unlikely that the polar area chart will have a lot of data - var visibleCount = 0; - var meta = this.getMeta(); - for (var i = 0; i < index; ++i) { - if (!isNaN(this.getDataset().data[i]) && !meta.data[i].hidden) { - ++visibleCount; - } - } - - var distance = arc.hidden? 0 : this.chart.scale.getDistanceFromCenterForValue(this.getDataset().data[index]); - var startAngle = (-0.5 * Math.PI) + (circumference * visibleCount); - var endAngle = startAngle + (arc.hidden? 0 : circumference); - - var resetModel = { - x: centerX, - y: centerY, - innerRadius: 0, - outerRadius: this.chart.options.animation.animateScale ? 0 : this.chart.scale.getDistanceFromCenterForValue(this.getDataset().data[index]), - startAngle: this.chart.options.animation.animateRotate ? Math.PI * -0.5 : startAngle, - endAngle: this.chart.options.animation.animateRotate ? Math.PI * -0.5 : endAngle, - - backgroundColor: arc.custom && arc.custom.backgroundColor ? arc.custom.backgroundColor : helpers.getValueAtIndexOrDefault(this.getDataset().backgroundColor, index, this.chart.options.elements.arc.backgroundColor), - borderWidth: arc.custom && arc.custom.borderWidth ? arc.custom.borderWidth : helpers.getValueAtIndexOrDefault(this.getDataset().borderWidth, index, this.chart.options.elements.arc.borderWidth), - borderColor: arc.custom && arc.custom.borderColor ? arc.custom.borderColor : helpers.getValueAtIndexOrDefault(this.getDataset().borderColor, index, this.chart.options.elements.arc.borderColor), - - label: helpers.getValueAtIndexOrDefault(this.chart.data.labels, index, this.chart.data.labels[index]) - }; - - helpers.extend(arc, { - // Utility - _chart: this.chart.chart, - _datasetIndex: this.index, - _index: index, - _scale: this.chart.scale, - - // Desired view properties - _model: reset ? resetModel : { - x: centerX, - y: centerY, - innerRadius: 0, - outerRadius: distance, - startAngle: startAngle, - endAngle: endAngle, - - backgroundColor: arc.custom && arc.custom.backgroundColor ? arc.custom.backgroundColor : helpers.getValueAtIndexOrDefault(this.getDataset().backgroundColor, index, this.chart.options.elements.arc.backgroundColor), - borderWidth: arc.custom && arc.custom.borderWidth ? arc.custom.borderWidth : helpers.getValueAtIndexOrDefault(this.getDataset().borderWidth, index, this.chart.options.elements.arc.borderWidth), - borderColor: arc.custom && arc.custom.borderColor ? arc.custom.borderColor : helpers.getValueAtIndexOrDefault(this.getDataset().borderColor, index, this.chart.options.elements.arc.borderColor), - - label: helpers.getValueAtIndexOrDefault(this.chart.data.labels, index, this.chart.data.labels[index]) - } - }); - - arc.pivot(); - }, - - draw: function(ease) { - var easingDecimal = ease || 1; - helpers.each(this.getMeta().data, function(arc, index) { - arc.transition(easingDecimal).draw(); - }); - }, - - setHoverStyle: function(arc) { - var dataset = this.chart.data.datasets[arc._datasetIndex]; - var index = arc._index; - - arc._model.backgroundColor = arc.custom && arc.custom.hoverBackgroundColor ? arc.custom.hoverBackgroundColor : helpers.getValueAtIndexOrDefault(dataset.hoverBackgroundColor, index, helpers.color(arc._model.backgroundColor).saturate(0.5).darken(0.1).rgbString()); - arc._model.borderColor = arc.custom && arc.custom.hoverBorderColor ? arc.custom.hoverBorderColor : helpers.getValueAtIndexOrDefault(dataset.hoverBorderColor, index, helpers.color(arc._model.borderColor).saturate(0.5).darken(0.1).rgbString()); - arc._model.borderWidth = arc.custom && arc.custom.hoverBorderWidth ? arc.custom.hoverBorderWidth : helpers.getValueAtIndexOrDefault(dataset.hoverBorderWidth, index, arc._model.borderWidth); - }, - - removeHoverStyle: function(arc) { - var dataset = this.chart.data.datasets[arc._datasetIndex]; - var index = arc._index; - - arc._model.backgroundColor = arc.custom && arc.custom.backgroundColor ? arc.custom.backgroundColor : helpers.getValueAtIndexOrDefault(this.getDataset().backgroundColor, index, this.chart.options.elements.arc.backgroundColor); - arc._model.borderColor = arc.custom && arc.custom.borderColor ? arc.custom.borderColor : helpers.getValueAtIndexOrDefault(this.getDataset().borderColor, index, this.chart.options.elements.arc.borderColor); - arc._model.borderWidth = arc.custom && arc.custom.borderWidth ? arc.custom.borderWidth : helpers.getValueAtIndexOrDefault(this.getDataset().borderWidth, index, this.chart.options.elements.arc.borderWidth); - }, - - countVisibleElements: function() { - var dataset = this.getDataset(); - var meta = this.getMeta(); - var count = 0; - - helpers.each(meta.data, function(element, index) { - if (!isNaN(dataset.data[index]) && !element.hidden) { - count++; - } - }); - - return count; - }, - - calculateCircumference: function(value) { - var count = this.getMeta().count; - if (count > 0 && !isNaN(value)) { - return (2 * Math.PI) / count; - } else { - return 0; - } - } - }); -}; - },{}],20:[function(require,module,exports){ -"use strict"; +"use strict"; + +module.exports = function(Chart) { + + var helpers = Chart.helpers; + + + Chart.defaults.radar = { + scale: { + type: "radialLinear" + }, + elements: { + line: { + tension: 0 // no bezier in radar + } + } + }; + + Chart.controllers.radar = Chart.DatasetController.extend({ + linkScales: function() { + // No need. Single scale only + }, + + addElements: function() { + var meta = this.getMeta(); + + meta.dataset = meta.dataset || new Chart.elements.Line({ + _chart: this.chart.chart, + _datasetIndex: this.index, + _points: meta.data, + _loop: true + }); + + helpers.each(this.getDataset().data, function(value, index) { + meta.data[index] = meta.data[index] || new Chart.elements.Point({ + _chart: this.chart.chart, + _datasetIndex: this.index, + _index: index, + _model: { + x: 0, //xScale.getPixelForValue(null, index, true), + y: 0 //this.chartArea.bottom, + } + }); + }, this); + }, + addElementAndReset: function(index) { + var point = new Chart.elements.Point({ + _chart: this.chart.chart, + _datasetIndex: this.index, + _index: index + }); + + // Add to the points array and reset it + this.getMeta().data.splice(index, 0, point); + this.updateElement(point, index, true); + + // Make sure bezier control points are updated + this.updateBezierControlPoints(); + }, + + update: function update(reset) { + var meta = this.getMeta(); + var line = meta.dataset; + var points = meta.data; + + var scale = this.chart.scale; + var scaleBase; + + if (scale.min < 0 && scale.max < 0) { + scaleBase = scale.getPointPositionForValue(0, scale.max); + } else if (scale.min > 0 && scale.max > 0) { + scaleBase = scale.getPointPositionForValue(0, scale.min); + } else { + scaleBase = scale.getPointPositionForValue(0, 0); + } + + // Compatibility: If the properties are defined with only the old name, use those values + if ((this.getDataset().tension !== undefined) && (this.getDataset().lineTension === undefined)) + { + this.getDataset().lineTension = this.getDataset().tension; + } + + helpers.extend(meta.dataset, { + // Utility + _datasetIndex: this.index, + // Data + _children: points, + // Model + _model: { + // Appearance + tension: line.custom && line.custom.tension ? line.custom.tension : helpers.getValueOrDefault(this.getDataset().lineTension, this.chart.options.elements.line.tension), + backgroundColor: line.custom && line.custom.backgroundColor ? line.custom.backgroundColor : (this.getDataset().backgroundColor || this.chart.options.elements.line.backgroundColor), + borderWidth: line.custom && line.custom.borderWidth ? line.custom.borderWidth : (this.getDataset().borderWidth || this.chart.options.elements.line.borderWidth), + borderColor: line.custom && line.custom.borderColor ? line.custom.borderColor : (this.getDataset().borderColor || this.chart.options.elements.line.borderColor), + fill: line.custom && line.custom.fill ? line.custom.fill : (this.getDataset().fill !== undefined ? this.getDataset().fill : this.chart.options.elements.line.fill), + borderCapStyle: line.custom && line.custom.borderCapStyle ? line.custom.borderCapStyle : (this.getDataset().borderCapStyle || this.chart.options.elements.line.borderCapStyle), + borderDash: line.custom && line.custom.borderDash ? line.custom.borderDash : (this.getDataset().borderDash || this.chart.options.elements.line.borderDash), + borderDashOffset: line.custom && line.custom.borderDashOffset ? line.custom.borderDashOffset : (this.getDataset().borderDashOffset || this.chart.options.elements.line.borderDashOffset), + borderJoinStyle: line.custom && line.custom.borderJoinStyle ? line.custom.borderJoinStyle : (this.getDataset().borderJoinStyle || this.chart.options.elements.line.borderJoinStyle), + + // Scale + scaleTop: scale.top, + scaleBottom: scale.bottom, + scaleZero: scaleBase + } + }); + + meta.dataset.pivot(); + + // Update Points + helpers.each(points, function(point, index) { + this.updateElement(point, index, reset); + }, this); + + + // Update bezier control points + this.updateBezierControlPoints(); + }, + updateElement: function(point, index, reset) { + var pointPosition = this.chart.scale.getPointPositionForValue(index, this.getDataset().data[index]); + + helpers.extend(point, { + // Utility + _datasetIndex: this.index, + _index: index, + _scale: this.chart.scale, + + // Desired view properties + _model: { + x: reset ? this.chart.scale.xCenter : pointPosition.x, // value not used in dataset scale, but we want a consistent API between scales + y: reset ? this.chart.scale.yCenter : pointPosition.y, + + // Appearance + tension: point.custom && point.custom.tension ? point.custom.tension : helpers.getValueOrDefault(this.getDataset().tension, this.chart.options.elements.line.tension), + radius: point.custom && point.custom.radius ? point.custom.radius : helpers.getValueAtIndexOrDefault(this.getDataset().pointRadius, index, this.chart.options.elements.point.radius), + backgroundColor: point.custom && point.custom.backgroundColor ? point.custom.backgroundColor : helpers.getValueAtIndexOrDefault(this.getDataset().pointBackgroundColor, index, this.chart.options.elements.point.backgroundColor), + borderColor: point.custom && point.custom.borderColor ? point.custom.borderColor : helpers.getValueAtIndexOrDefault(this.getDataset().pointBorderColor, index, this.chart.options.elements.point.borderColor), + borderWidth: point.custom && point.custom.borderWidth ? point.custom.borderWidth : helpers.getValueAtIndexOrDefault(this.getDataset().pointBorderWidth, index, this.chart.options.elements.point.borderWidth), + pointStyle: point.custom && point.custom.pointStyle ? point.custom.pointStyle : helpers.getValueAtIndexOrDefault(this.getDataset().pointStyle, index, this.chart.options.elements.point.pointStyle), + + // Tooltip + hitRadius: point.custom && point.custom.hitRadius ? point.custom.hitRadius : helpers.getValueAtIndexOrDefault(this.getDataset().hitRadius, index, this.chart.options.elements.point.hitRadius) + } + }); + + point._model.skip = point.custom && point.custom.skip ? point.custom.skip : (isNaN(point._model.x) || isNaN(point._model.y)); + }, + updateBezierControlPoints: function() { + var meta = this.getMeta(); + helpers.each(meta.data, function(point, index) { + var controlPoints = helpers.splineCurve( + helpers.previousItem(meta.data, index, true)._model, + point._model, + helpers.nextItem(meta.data, index, true)._model, + point._model.tension + ); + + // Prevent the bezier going outside of the bounds of the graph + point._model.controlPointPreviousX = Math.max(Math.min(controlPoints.previous.x, this.chart.chartArea.right), this.chart.chartArea.left); + point._model.controlPointPreviousY = Math.max(Math.min(controlPoints.previous.y, this.chart.chartArea.bottom), this.chart.chartArea.top); + + point._model.controlPointNextX = Math.max(Math.min(controlPoints.next.x, this.chart.chartArea.right), this.chart.chartArea.left); + point._model.controlPointNextY = Math.max(Math.min(controlPoints.next.y, this.chart.chartArea.bottom), this.chart.chartArea.top); + + // Now pivot the point for animation + point.pivot(); + }, this); + }, + + draw: function(ease) { + var meta = this.getMeta(); + var easingDecimal = ease || 1; + + // Transition Point Locations + helpers.each(meta.data, function(point, index) { + point.transition(easingDecimal); + }); + + // Transition and Draw the line + meta.dataset.transition(easingDecimal).draw(); + + // Draw the points + helpers.each(meta.data, function(point) { + point.draw(); + }); + }, + + setHoverStyle: function(point) { + // Point + var dataset = this.chart.data.datasets[point._datasetIndex]; + var index = point._index; + + point._model.radius = point.custom && point.custom.hoverRadius ? point.custom.hoverRadius : helpers.getValueAtIndexOrDefault(dataset.pointHoverRadius, index, this.chart.options.elements.point.hoverRadius); + point._model.backgroundColor = point.custom && point.custom.hoverBackgroundColor ? point.custom.hoverBackgroundColor : helpers.getValueAtIndexOrDefault(dataset.pointHoverBackgroundColor, index, helpers.getHoverColor(point._model.backgroundColor)); + point._model.borderColor = point.custom && point.custom.hoverBorderColor ? point.custom.hoverBorderColor : helpers.getValueAtIndexOrDefault(dataset.pointHoverBorderColor, index, helpers.getHoverColor(point._model.borderColor)); + point._model.borderWidth = point.custom && point.custom.hoverBorderWidth ? point.custom.hoverBorderWidth : helpers.getValueAtIndexOrDefault(dataset.pointHoverBorderWidth, index, point._model.borderWidth); + }, + + removeHoverStyle: function(point) { + var dataset = this.chart.data.datasets[point._datasetIndex]; + var index = point._index; + + point._model.radius = point.custom && point.custom.radius ? point.custom.radius : helpers.getValueAtIndexOrDefault(this.getDataset().radius, index, this.chart.options.elements.point.radius); + point._model.backgroundColor = point.custom && point.custom.backgroundColor ? point.custom.backgroundColor : helpers.getValueAtIndexOrDefault(this.getDataset().pointBackgroundColor, index, this.chart.options.elements.point.backgroundColor); + point._model.borderColor = point.custom && point.custom.borderColor ? point.custom.borderColor : helpers.getValueAtIndexOrDefault(this.getDataset().pointBorderColor, index, this.chart.options.elements.point.borderColor); + point._model.borderWidth = point.custom && point.custom.borderWidth ? point.custom.borderWidth : helpers.getValueAtIndexOrDefault(this.getDataset().pointBorderWidth, index, this.chart.options.elements.point.borderWidth); + } + }); +}; -module.exports = function(Chart) { - - var helpers = Chart.helpers; - - - Chart.defaults.radar = { - scale: { - type: "radialLinear" - }, - elements: { - line: { - tension: 0 // no bezier in radar - } - } - }; - - Chart.controllers.radar = Chart.DatasetController.extend({ - linkScales: function() { - // No need. Single scale only - }, - - addElements: function() { - var meta = this.getMeta(); - - meta.dataset = meta.dataset || new Chart.elements.Line({ - _chart: this.chart.chart, - _datasetIndex: this.index, - _points: meta.data, - _loop: true - }); - - helpers.each(this.getDataset().data, function(value, index) { - meta.data[index] = meta.data[index] || new Chart.elements.Point({ - _chart: this.chart.chart, - _datasetIndex: this.index, - _index: index, - _model: { - x: 0, //xScale.getPixelForValue(null, index, true), - y: 0 //this.chartArea.bottom, - } - }); - }, this); - }, - addElementAndReset: function(index) { - var point = new Chart.elements.Point({ - _chart: this.chart.chart, - _datasetIndex: this.index, - _index: index - }); - - // Add to the points array and reset it - this.getMeta().data.splice(index, 0, point); - this.updateElement(point, index, true); - - // Make sure bezier control points are updated - this.updateBezierControlPoints(); - }, - - update: function update(reset) { - var meta = this.getMeta(); - var line = meta.dataset; - var points = meta.data; - - var scale = this.chart.scale; - var scaleBase; - - if (scale.min < 0 && scale.max < 0) { - scaleBase = scale.getPointPositionForValue(0, scale.max); - } else if (scale.min > 0 && scale.max > 0) { - scaleBase = scale.getPointPositionForValue(0, scale.min); - } else { - scaleBase = scale.getPointPositionForValue(0, 0); - } - - // Compatibility: If the properties are defined with only the old name, use those values - if ((this.getDataset().tension !== undefined) && (this.getDataset().lineTension === undefined)) - { - this.getDataset().lineTension = this.getDataset().tension; - } - - helpers.extend(meta.dataset, { - // Utility - _datasetIndex: this.index, - // Data - _children: points, - // Model - _model: { - // Appearance - tension: line.custom && line.custom.tension ? line.custom.tension : helpers.getValueOrDefault(this.getDataset().lineTension, this.chart.options.elements.line.tension), - backgroundColor: line.custom && line.custom.backgroundColor ? line.custom.backgroundColor : (this.getDataset().backgroundColor || this.chart.options.elements.line.backgroundColor), - borderWidth: line.custom && line.custom.borderWidth ? line.custom.borderWidth : (this.getDataset().borderWidth || this.chart.options.elements.line.borderWidth), - borderColor: line.custom && line.custom.borderColor ? line.custom.borderColor : (this.getDataset().borderColor || this.chart.options.elements.line.borderColor), - fill: line.custom && line.custom.fill ? line.custom.fill : (this.getDataset().fill !== undefined ? this.getDataset().fill : this.chart.options.elements.line.fill), - borderCapStyle: line.custom && line.custom.borderCapStyle ? line.custom.borderCapStyle : (this.getDataset().borderCapStyle || this.chart.options.elements.line.borderCapStyle), - borderDash: line.custom && line.custom.borderDash ? line.custom.borderDash : (this.getDataset().borderDash || this.chart.options.elements.line.borderDash), - borderDashOffset: line.custom && line.custom.borderDashOffset ? line.custom.borderDashOffset : (this.getDataset().borderDashOffset || this.chart.options.elements.line.borderDashOffset), - borderJoinStyle: line.custom && line.custom.borderJoinStyle ? line.custom.borderJoinStyle : (this.getDataset().borderJoinStyle || this.chart.options.elements.line.borderJoinStyle), - - // Scale - scaleTop: scale.top, - scaleBottom: scale.bottom, - scaleZero: scaleBase - } - }); - - meta.dataset.pivot(); - - // Update Points - helpers.each(points, function(point, index) { - this.updateElement(point, index, reset); - }, this); - - - // Update bezier control points - this.updateBezierControlPoints(); - }, - updateElement: function(point, index, reset) { - var pointPosition = this.chart.scale.getPointPositionForValue(index, this.getDataset().data[index]); - - helpers.extend(point, { - // Utility - _datasetIndex: this.index, - _index: index, - _scale: this.chart.scale, - - // Desired view properties - _model: { - x: reset ? this.chart.scale.xCenter : pointPosition.x, // value not used in dataset scale, but we want a consistent API between scales - y: reset ? this.chart.scale.yCenter : pointPosition.y, - - // Appearance - tension: point.custom && point.custom.tension ? point.custom.tension : helpers.getValueOrDefault(this.getDataset().tension, this.chart.options.elements.line.tension), - radius: point.custom && point.custom.radius ? point.custom.radius : helpers.getValueAtIndexOrDefault(this.getDataset().pointRadius, index, this.chart.options.elements.point.radius), - backgroundColor: point.custom && point.custom.backgroundColor ? point.custom.backgroundColor : helpers.getValueAtIndexOrDefault(this.getDataset().pointBackgroundColor, index, this.chart.options.elements.point.backgroundColor), - borderColor: point.custom && point.custom.borderColor ? point.custom.borderColor : helpers.getValueAtIndexOrDefault(this.getDataset().pointBorderColor, index, this.chart.options.elements.point.borderColor), - borderWidth: point.custom && point.custom.borderWidth ? point.custom.borderWidth : helpers.getValueAtIndexOrDefault(this.getDataset().pointBorderWidth, index, this.chart.options.elements.point.borderWidth), - pointStyle: point.custom && point.custom.pointStyle ? point.custom.pointStyle : helpers.getValueAtIndexOrDefault(this.getDataset().pointStyle, index, this.chart.options.elements.point.pointStyle), - - // Tooltip - hitRadius: point.custom && point.custom.hitRadius ? point.custom.hitRadius : helpers.getValueAtIndexOrDefault(this.getDataset().hitRadius, index, this.chart.options.elements.point.hitRadius) - } - }); - - point._model.skip = point.custom && point.custom.skip ? point.custom.skip : (isNaN(point._model.x) || isNaN(point._model.y)); - }, - updateBezierControlPoints: function() { - var meta = this.getMeta(); - helpers.each(meta.data, function(point, index) { - var controlPoints = helpers.splineCurve( - helpers.previousItem(meta.data, index, true)._model, - point._model, - helpers.nextItem(meta.data, index, true)._model, - point._model.tension - ); - - // Prevent the bezier going outside of the bounds of the graph - point._model.controlPointPreviousX = Math.max(Math.min(controlPoints.previous.x, this.chart.chartArea.right), this.chart.chartArea.left); - point._model.controlPointPreviousY = Math.max(Math.min(controlPoints.previous.y, this.chart.chartArea.bottom), this.chart.chartArea.top); - - point._model.controlPointNextX = Math.max(Math.min(controlPoints.next.x, this.chart.chartArea.right), this.chart.chartArea.left); - point._model.controlPointNextY = Math.max(Math.min(controlPoints.next.y, this.chart.chartArea.bottom), this.chart.chartArea.top); - - // Now pivot the point for animation - point.pivot(); - }, this); - }, - - draw: function(ease) { - var meta = this.getMeta(); - var easingDecimal = ease || 1; - - // Transition Point Locations - helpers.each(meta.data, function(point, index) { - point.transition(easingDecimal); - }); - - // Transition and Draw the line - meta.dataset.transition(easingDecimal).draw(); - - // Draw the points - helpers.each(meta.data, function(point) { - point.draw(); - }); - }, - - setHoverStyle: function(point) { - // Point - var dataset = this.chart.data.datasets[point._datasetIndex]; - var index = point._index; - - point._model.radius = point.custom && point.custom.hoverRadius ? point.custom.hoverRadius : helpers.getValueAtIndexOrDefault(dataset.pointHoverRadius, index, this.chart.options.elements.point.hoverRadius); - point._model.backgroundColor = point.custom && point.custom.hoverBackgroundColor ? point.custom.hoverBackgroundColor : helpers.getValueAtIndexOrDefault(dataset.pointHoverBackgroundColor, index, helpers.color(point._model.backgroundColor).saturate(0.5).darken(0.1).rgbString()); - point._model.borderColor = point.custom && point.custom.hoverBorderColor ? point.custom.hoverBorderColor : helpers.getValueAtIndexOrDefault(dataset.pointHoverBorderColor, index, helpers.color(point._model.borderColor).saturate(0.5).darken(0.1).rgbString()); - point._model.borderWidth = point.custom && point.custom.hoverBorderWidth ? point.custom.hoverBorderWidth : helpers.getValueAtIndexOrDefault(dataset.pointHoverBorderWidth, index, point._model.borderWidth); - }, - - removeHoverStyle: function(point) { - var dataset = this.chart.data.datasets[point._datasetIndex]; - var index = point._index; - - point._model.radius = point.custom && point.custom.radius ? point.custom.radius : helpers.getValueAtIndexOrDefault(this.getDataset().radius, index, this.chart.options.elements.point.radius); - point._model.backgroundColor = point.custom && point.custom.backgroundColor ? point.custom.backgroundColor : helpers.getValueAtIndexOrDefault(this.getDataset().pointBackgroundColor, index, this.chart.options.elements.point.backgroundColor); - point._model.borderColor = point.custom && point.custom.borderColor ? point.custom.borderColor : helpers.getValueAtIndexOrDefault(this.getDataset().pointBorderColor, index, this.chart.options.elements.point.borderColor); - point._model.borderWidth = point.custom && point.custom.borderWidth ? point.custom.borderWidth : helpers.getValueAtIndexOrDefault(this.getDataset().pointBorderWidth, index, this.chart.options.elements.point.borderWidth); - } - }); -}; },{}],21:[function(require,module,exports){ -/*global window: false */ -"use strict"; - -module.exports = function(Chart) { - - var helpers = Chart.helpers; - - Chart.defaults.global.animation = { - duration: 1000, - easing: "easeOutQuart", - onProgress: helpers.noop, - onComplete: helpers.noop - }; - - Chart.Animation = Chart.Element.extend({ - currentStep: null, // the current animation step - numSteps: 60, // default number of steps - easing: "", // the easing to use for this animation - render: null, // render function used by the animation service - - onAnimationProgress: null, // user specified callback to fire on each step of the animation - onAnimationComplete: null // user specified callback to fire when the animation finishes - }); - - Chart.animationService = { - frameDuration: 17, - animations: [], - dropFrames: 0, - request: null, - addAnimation: function(chartInstance, animationObject, duration, lazy) { - - if (!lazy) { - chartInstance.animating = true; - } - - for (var index = 0; index < this.animations.length; ++index) { - if (this.animations[index].chartInstance === chartInstance) { - // replacing an in progress animation - this.animations[index].animationObject = animationObject; - return; - } - } - - this.animations.push({ - chartInstance: chartInstance, - animationObject: animationObject - }); - - // If there are no animations queued, manually kickstart a digest, for lack of a better word - if (this.animations.length === 1) { - this.requestAnimationFrame(); - } - }, - // Cancel the animation for a given chart instance - cancelAnimation: function(chartInstance) { - var index = helpers.findIndex(this.animations, function(animationWrapper) { - return animationWrapper.chartInstance === chartInstance; - }); - - if (index !== -1) { - this.animations.splice(index, 1); - chartInstance.animating = false; - } - }, - requestAnimationFrame: function() { - var me = this; - if (me.request === null) { - // Skip animation frame requests until the active one is executed. - // This can happen when processing mouse events, e.g. 'mousemove' - // and 'mouseout' events will trigger multiple renders. - me.request = helpers.requestAnimFrame.call(window, function() { - me.request = null; - me.startDigest(); - }); - } - }, - startDigest: function() { - - var startTime = Date.now(); - var framesToDrop = 0; - - if (this.dropFrames > 1) { - framesToDrop = Math.floor(this.dropFrames); - this.dropFrames = this.dropFrames % 1; - } - - var i = 0; - while (i < this.animations.length) { - if (this.animations[i].animationObject.currentStep === null) { - this.animations[i].animationObject.currentStep = 0; - } - - this.animations[i].animationObject.currentStep += 1 + framesToDrop; - - if (this.animations[i].animationObject.currentStep > this.animations[i].animationObject.numSteps) { - this.animations[i].animationObject.currentStep = this.animations[i].animationObject.numSteps; - } - - this.animations[i].animationObject.render(this.animations[i].chartInstance, this.animations[i].animationObject); - if (this.animations[i].animationObject.onAnimationProgress && this.animations[i].animationObject.onAnimationProgress.call) { - this.animations[i].animationObject.onAnimationProgress.call(this.animations[i].chartInstance, this.animations[i]); - } - - if (this.animations[i].animationObject.currentStep === this.animations[i].animationObject.numSteps) { - if (this.animations[i].animationObject.onAnimationComplete && this.animations[i].animationObject.onAnimationComplete.call) { - this.animations[i].animationObject.onAnimationComplete.call(this.animations[i].chartInstance, this.animations[i]); - } - - // executed the last frame. Remove the animation. - this.animations[i].chartInstance.animating = false; - - this.animations.splice(i, 1); - } else { - ++i; - } - } - - var endTime = Date.now(); - var dropFrames = (endTime - startTime) / this.frameDuration; - - this.dropFrames += dropFrames; - - // Do we have more stuff to animate? - if (this.animations.length > 0) { - this.requestAnimationFrame(); - } - } - }; +/*global window: false */ +"use strict"; + +module.exports = function(Chart) { + + var helpers = Chart.helpers; + + Chart.defaults.global.animation = { + duration: 1000, + easing: "easeOutQuart", + onProgress: helpers.noop, + onComplete: helpers.noop + }; + + Chart.Animation = Chart.Element.extend({ + currentStep: null, // the current animation step + numSteps: 60, // default number of steps + easing: "", // the easing to use for this animation + render: null, // render function used by the animation service + + onAnimationProgress: null, // user specified callback to fire on each step of the animation + onAnimationComplete: null // user specified callback to fire when the animation finishes + }); + + Chart.animationService = { + frameDuration: 17, + animations: [], + dropFrames: 0, + request: null, + addAnimation: function(chartInstance, animationObject, duration, lazy) { + + if (!lazy) { + chartInstance.animating = true; + } + + for (var index = 0; index < this.animations.length; ++index) { + if (this.animations[index].chartInstance === chartInstance) { + // replacing an in progress animation + this.animations[index].animationObject = animationObject; + return; + } + } + + this.animations.push({ + chartInstance: chartInstance, + animationObject: animationObject + }); + + // If there are no animations queued, manually kickstart a digest, for lack of a better word + if (this.animations.length === 1) { + this.requestAnimationFrame(); + } + }, + // Cancel the animation for a given chart instance + cancelAnimation: function(chartInstance) { + var index = helpers.findIndex(this.animations, function(animationWrapper) { + return animationWrapper.chartInstance === chartInstance; + }); + + if (index !== -1) { + this.animations.splice(index, 1); + chartInstance.animating = false; + } + }, + requestAnimationFrame: function() { + var me = this; + if (me.request === null) { + // Skip animation frame requests until the active one is executed. + // This can happen when processing mouse events, e.g. 'mousemove' + // and 'mouseout' events will trigger multiple renders. + me.request = helpers.requestAnimFrame.call(window, function() { + me.request = null; + me.startDigest(); + }); + } + }, + startDigest: function() { + + var startTime = Date.now(); + var framesToDrop = 0; + + if (this.dropFrames > 1) { + framesToDrop = Math.floor(this.dropFrames); + this.dropFrames = this.dropFrames % 1; + } + + var i = 0; + while (i < this.animations.length) { + if (this.animations[i].animationObject.currentStep === null) { + this.animations[i].animationObject.currentStep = 0; + } + + this.animations[i].animationObject.currentStep += 1 + framesToDrop; + + if (this.animations[i].animationObject.currentStep > this.animations[i].animationObject.numSteps) { + this.animations[i].animationObject.currentStep = this.animations[i].animationObject.numSteps; + } + + this.animations[i].animationObject.render(this.animations[i].chartInstance, this.animations[i].animationObject); + if (this.animations[i].animationObject.onAnimationProgress && this.animations[i].animationObject.onAnimationProgress.call) { + this.animations[i].animationObject.onAnimationProgress.call(this.animations[i].chartInstance, this.animations[i]); + } + + if (this.animations[i].animationObject.currentStep === this.animations[i].animationObject.numSteps) { + if (this.animations[i].animationObject.onAnimationComplete && this.animations[i].animationObject.onAnimationComplete.call) { + this.animations[i].animationObject.onAnimationComplete.call(this.animations[i].chartInstance, this.animations[i]); + } + + // executed the last frame. Remove the animation. + this.animations[i].chartInstance.animating = false; + + this.animations.splice(i, 1); + } else { + ++i; + } + } + + var endTime = Date.now(); + var dropFrames = (endTime - startTime) / this.frameDuration; + + this.dropFrames += dropFrames; + + // Do we have more stuff to animate? + if (this.animations.length > 0) { + this.requestAnimationFrame(); + } + } + }; }; },{}],22:[function(require,module,exports){ -"use strict"; +"use strict"; + +module.exports = function(Chart) { + + var helpers = Chart.helpers; + //Create a dictionary of chart types, to allow for extension of existing types + Chart.types = {}; + + //Store a reference to each instance - allowing us to globally resize chart instances on window resize. + //Destroy method on the chart will remove the instance of the chart from this reference. + Chart.instances = {}; + + // Controllers available for dataset visualization eg. bar, line, slice, etc. + Chart.controllers = {}; + + // The main controller of a chart + Chart.Controller = function(instance) { + + this.chart = instance; + this.config = instance.config; + this.options = this.config.options = helpers.configMerge(Chart.defaults.global, Chart.defaults[this.config.type], this.config.options || {}); + this.id = helpers.uid(); + + Object.defineProperty(this, 'data', { + get: function() { + return this.config.data; + } + }); + + //Add the chart instance to the global namespace + Chart.instances[this.id] = this; + + if (this.options.responsive) { + // Silent resize before chart draws + this.resize(true); + } + + this.initialize(); + + return this; + }; + + helpers.extend(Chart.Controller.prototype, { + + initialize: function initialize() { + // Before init plugin notification + Chart.pluginService.notifyPlugins('beforeInit', [this]); + + this.bindEvents(); + + // Make sure controllers are built first so that each dataset is bound to an axis before the scales + // are built + this.ensureScalesHaveIDs(); + this.buildOrUpdateControllers(); + this.buildScales(); + this.buildSurroundingItems(); + this.updateLayout(); + this.resetElements(); + this.initToolTip(); + this.update(); + + // After init plugin notification + Chart.pluginService.notifyPlugins('afterInit', [this]); + + return this; + }, + + clear: function clear() { + helpers.clear(this.chart); + return this; + }, + + stop: function stop() { + // Stops any current animation loop occuring + Chart.animationService.cancelAnimation(this); + return this; + }, + + resize: function resize(silent) { + var canvas = this.chart.canvas; + var newWidth = helpers.getMaximumWidth(this.chart.canvas); + var newHeight = (this.options.maintainAspectRatio && isNaN(this.chart.aspectRatio) === false && isFinite(this.chart.aspectRatio) && this.chart.aspectRatio !== 0) ? newWidth / this.chart.aspectRatio : helpers.getMaximumHeight(this.chart.canvas); + + var sizeChanged = this.chart.width !== newWidth || this.chart.height !== newHeight; + + if (!sizeChanged) + return this; + + canvas.width = this.chart.width = newWidth; + canvas.height = this.chart.height = newHeight; + + helpers.retinaScale(this.chart); + + if (!silent) { + this.stop(); + this.update(this.options.responsiveAnimationDuration); + } + + return this; + }, + ensureScalesHaveIDs: function ensureScalesHaveIDs() { + var defaultXAxisID = 'x-axis-'; + var defaultYAxisID = 'y-axis-'; + + if (this.options.scales) { + if (this.options.scales.xAxes && this.options.scales.xAxes.length) { + helpers.each(this.options.scales.xAxes, function(xAxisOptions, index) { + xAxisOptions.id = xAxisOptions.id || (defaultXAxisID + index); + }); + } + + if (this.options.scales.yAxes && this.options.scales.yAxes.length) { + // Build the y axes + helpers.each(this.options.scales.yAxes, function(yAxisOptions, index) { + yAxisOptions.id = yAxisOptions.id || (defaultYAxisID + index); + }); + } + } + }, + buildScales: function buildScales() { + // Map of scale ID to scale object so we can lookup later + this.scales = {}; + + // Build the x axes + if (this.options.scales) { + if (this.options.scales.xAxes && this.options.scales.xAxes.length) { + helpers.each(this.options.scales.xAxes, function(xAxisOptions, index) { + var xType = helpers.getValueOrDefault(xAxisOptions.type, 'category'); + var ScaleClass = Chart.scaleService.getScaleConstructor(xType); + if (ScaleClass) { + var scale = new ScaleClass({ + ctx: this.chart.ctx, + options: xAxisOptions, + chart: this, + id: xAxisOptions.id + }); + + this.scales[scale.id] = scale; + } + }, this); + } + + if (this.options.scales.yAxes && this.options.scales.yAxes.length) { + // Build the y axes + helpers.each(this.options.scales.yAxes, function(yAxisOptions, index) { + var yType = helpers.getValueOrDefault(yAxisOptions.type, 'linear'); + var ScaleClass = Chart.scaleService.getScaleConstructor(yType); + if (ScaleClass) { + var scale = new ScaleClass({ + ctx: this.chart.ctx, + options: yAxisOptions, + chart: this, + id: yAxisOptions.id + }); + + this.scales[scale.id] = scale; + } + }, this); + } + } + if (this.options.scale) { + // Build radial axes + var ScaleClass = Chart.scaleService.getScaleConstructor(this.options.scale.type); + if (ScaleClass) { + var scale = new ScaleClass({ + ctx: this.chart.ctx, + options: this.options.scale, + chart: this + }); + + this.scale = scale; + + this.scales.radialScale = scale; + } + } + + Chart.scaleService.addScalesToLayout(this); + }, + + buildSurroundingItems: function() { + if (this.options.title) { + this.titleBlock = new Chart.Title({ + ctx: this.chart.ctx, + options: this.options.title, + chart: this + }); + + Chart.layoutService.addBox(this, this.titleBlock); + } + + if (this.options.legend) { + this.legend = new Chart.Legend({ + ctx: this.chart.ctx, + options: this.options.legend, + chart: this + }); + + Chart.layoutService.addBox(this, this.legend); + } + }, + + updateLayout: function() { + Chart.layoutService.update(this, this.chart.width, this.chart.height); + }, + + buildOrUpdateControllers: function buildOrUpdateControllers() { + var types = []; + var newControllers = []; + + helpers.each(this.data.datasets, function(dataset, datasetIndex) { + var meta = this.getDatasetMeta(datasetIndex); + if (!meta.type) { + meta.type = dataset.type || this.config.type; + } + + types.push(meta.type); + + if (meta.controller) { + meta.controller.updateIndex(datasetIndex); + } else { + meta.controller = new Chart.controllers[meta.type](this, datasetIndex); + newControllers.push(meta.controller); + } + }, this); + + if (types.length > 1) { + for (var i = 1; i < types.length; i++) { + if (types[i] !== types[i - 1]) { + this.isCombo = true; + break; + } + } + } + + return newControllers; + }, + + resetElements: function resetElements() { + helpers.each(this.data.datasets, function(dataset, datasetIndex) { + this.getDatasetMeta(datasetIndex).controller.reset(); + }, this); + }, + + update: function update(animationDuration, lazy) { + Chart.pluginService.notifyPlugins('beforeUpdate', [this]); + + // In case the entire data object changed + this.tooltip._data = this.data; + + // Make sure dataset controllers are updated and new controllers are reset + var newControllers = this.buildOrUpdateControllers(); + + // Make sure all dataset controllers have correct meta data counts + helpers.each(this.data.datasets, function(dataset, datasetIndex) { + this.getDatasetMeta(datasetIndex).controller.buildOrUpdateElements(); + }, this); + + Chart.layoutService.update(this, this.chart.width, this.chart.height); + + // Apply changes to the dataets that require the scales to have been calculated i.e BorderColor chages + Chart.pluginService.notifyPlugins('afterScaleUpdate', [this]); + + // Can only reset the new controllers after the scales have been updated + helpers.each(newControllers, function(controller) { + controller.reset(); + }); + + // This will loop through any data and do the appropriate element update for the type + helpers.each(this.data.datasets, function(dataset, datasetIndex) { + this.getDatasetMeta(datasetIndex).controller.update(); + }, this); + + // Do this before render so that any plugins that need final scale updates can use it + Chart.pluginService.notifyPlugins('afterUpdate', [this]); + + this.render(animationDuration, lazy); + }, + + render: function render(duration, lazy) { + Chart.pluginService.notifyPlugins('beforeRender', [this]); + + if (this.options.animation && ((typeof duration !== 'undefined' && duration !== 0) || (typeof duration === 'undefined' && this.options.animation.duration !== 0))) { + var animation = new Chart.Animation(); + animation.numSteps = (duration || this.options.animation.duration) / 16.66; //60 fps + animation.easing = this.options.animation.easing; + + // render function + animation.render = function(chartInstance, animationObject) { + var easingFunction = helpers.easingEffects[animationObject.easing]; + var stepDecimal = animationObject.currentStep / animationObject.numSteps; + var easeDecimal = easingFunction(stepDecimal); + + chartInstance.draw(easeDecimal, stepDecimal, animationObject.currentStep); + }; + + // user events + animation.onAnimationProgress = this.options.animation.onProgress; + animation.onAnimationComplete = this.options.animation.onComplete; + + Chart.animationService.addAnimation(this, animation, duration, lazy); + } else { + this.draw(); + if (this.options.animation && this.options.animation.onComplete && this.options.animation.onComplete.call) { + this.options.animation.onComplete.call(this); + } + } + return this; + }, + + draw: function(ease) { + var easingDecimal = ease || 1; + this.clear(); + + Chart.pluginService.notifyPlugins('beforeDraw', [this, easingDecimal]); + + // Draw all the scales + helpers.each(this.boxes, function(box) { + box.draw(this.chartArea); + }, this); + if (this.scale) { + this.scale.draw(); + } + + // Clip out the chart area so that anything outside does not draw. This is necessary for zoom and pan to function + this.chart.ctx.save(); + this.chart.ctx.beginPath(); + this.chart.ctx.rect(this.chartArea.left, this.chartArea.top, this.chartArea.right - this.chartArea.left, this.chartArea.bottom - this.chartArea.top); + this.chart.ctx.clip(); + + // Draw each dataset via its respective controller (reversed to support proper line stacking) + helpers.each(this.data.datasets, function(dataset, datasetIndex) { + if (this.isDatasetVisible(datasetIndex)) { + this.getDatasetMeta(datasetIndex).controller.draw(ease); + } + }, this, true); + + // Restore from the clipping operation + this.chart.ctx.restore(); + + // Finally draw the tooltip + this.tooltip.transition(easingDecimal).draw(); + + Chart.pluginService.notifyPlugins('afterDraw', [this, easingDecimal]); + }, + + // Get the single element that was clicked on + // @return : An object containing the dataset index and element index of the matching element. Also contains the rectangle that was draw + getElementAtEvent: function(e) { + var eventPosition = helpers.getRelativePosition(e, this.chart); + var elementsArray = []; + + helpers.each(this.data.datasets, function(dataset, datasetIndex) { + if (this.isDatasetVisible(datasetIndex)) { + var meta = this.getDatasetMeta(datasetIndex); + helpers.each(meta.data, function(element, index) { + if (element.inRange(eventPosition.x, eventPosition.y)) { + elementsArray.push(element); + return elementsArray; + } + }); + } + }, this); + + return elementsArray; + }, + + getElementsAtEvent: function(e) { + var eventPosition = helpers.getRelativePosition(e, this.chart); + var elementsArray = []; + + var found = (function() { + if (this.data.datasets) { + for (var i = 0; i < this.data.datasets.length; i++) { + var meta = this.getDatasetMeta(i); + if (this.isDatasetVisible(i)) { + for (var j = 0; j < meta.data.length; j++) { + if (meta.data[j].inRange(eventPosition.x, eventPosition.y)) { + return meta.data[j]; + } + } + } + } + } + }).call(this); + + if (!found) { + return elementsArray; + } + + helpers.each(this.data.datasets, function(dataset, datasetIndex) { + if (this.isDatasetVisible(datasetIndex)) { + var meta = this.getDatasetMeta(datasetIndex); + elementsArray.push(meta.data[found._index]); + } + }, this); + + return elementsArray; + }, + + getDatasetAtEvent: function(e) { + var elementsArray = this.getElementAtEvent(e); + + if (elementsArray.length > 0) { + elementsArray = this.getDatasetMeta(elementsArray[0]._datasetIndex).data; + } + + return elementsArray; + }, + + getDatasetMeta: function(datasetIndex) { + var dataset = this.data.datasets[datasetIndex]; + if (!dataset._meta) { + dataset._meta = {}; + } + + var meta = dataset._meta[this.id]; + if (!meta) { + meta = dataset._meta[this.id] = { + type: null, + data: [], + dataset: null, + controller: null, + hidden: null, // See isDatasetVisible() comment + xAxisID: null, + yAxisID: null + }; + } + + return meta; + }, + + getVisibleDatasetCount: function() { + var count = 0; + for (var i = 0, ilen = this.data.datasets.length; i<ilen; ++i) { + if (this.isDatasetVisible(i)) { + count++; + } + } + return count; + }, + + isDatasetVisible: function(datasetIndex) { + var meta = this.getDatasetMeta(datasetIndex); + + // meta.hidden is a per chart dataset hidden flag override with 3 states: if true or false, + // the dataset.hidden value is ignored, else if null, the dataset hidden state is returned. + return typeof meta.hidden === 'boolean'? !meta.hidden : !this.data.datasets[datasetIndex].hidden; + }, + + generateLegend: function generateLegend() { + return this.options.legendCallback(this); + }, + + destroy: function destroy() { + this.clear(); + helpers.unbindEvents(this, this.events); + helpers.removeResizeListener(this.chart.canvas.parentNode); + + // Reset canvas height/width attributes + var canvas = this.chart.canvas; + canvas.width = this.chart.width; + canvas.height = this.chart.height; + + // if we scaled the canvas in response to a devicePixelRatio !== 1, we need to undo that transform here + if (this.chart.originalDevicePixelRatio !== undefined) { + this.chart.ctx.scale(1 / this.chart.originalDevicePixelRatio, 1 / this.chart.originalDevicePixelRatio); + } + + // Reset to the old style since it may have been changed by the device pixel ratio changes + canvas.style.width = this.chart.originalCanvasStyleWidth; + canvas.style.height = this.chart.originalCanvasStyleHeight; + + Chart.pluginService.notifyPlugins('destroy', [this]); + + delete Chart.instances[this.id]; + }, + + toBase64Image: function toBase64Image() { + return this.chart.canvas.toDataURL.apply(this.chart.canvas, arguments); + }, + + initToolTip: function initToolTip() { + this.tooltip = new Chart.Tooltip({ + _chart: this.chart, + _chartInstance: this, + _data: this.data, + _options: this.options + }, this); + }, + + bindEvents: function bindEvents() { + helpers.bindEvents(this, this.options.events, function(evt) { + this.eventHandler(evt); + }); + }, + eventHandler: function eventHandler(e) { + this.lastActive = this.lastActive || []; + this.lastTooltipActive = this.lastTooltipActive || []; + + // Find Active Elements for hover and tooltips + if (e.type === 'mouseout') { + this.active = []; + this.tooltipActive = []; + } else { + + var _this = this; + var getItemsForMode = function(mode) { + switch (mode) { + case 'single': + return _this.getElementAtEvent(e); + case 'label': + return _this.getElementsAtEvent(e); + case 'dataset': + return _this.getDatasetAtEvent(e); + default: + return e; + } + }; + + this.active = getItemsForMode(this.options.hover.mode); + this.tooltipActive = getItemsForMode(this.options.tooltips.mode); + } + + // On Hover hook + if (this.options.hover.onHover) { + this.options.hover.onHover.call(this, this.active); + } + + if (e.type === 'mouseup' || e.type === 'click') { + if (this.options.onClick) { + this.options.onClick.call(this, e, this.active); + } + + if (this.legend && this.legend.handleEvent) { + this.legend.handleEvent(e); + } + } + + // Remove styling for last active (even if it may still be active) + if (this.lastActive.length) { + switch (this.options.hover.mode) { + case 'single': + this.getDatasetMeta(this.lastActive[0]._datasetIndex).controller.removeHoverStyle(this.lastActive[0], this.lastActive[0]._datasetIndex, this.lastActive[0]._index); + break; + case 'label': + case 'dataset': + for (var i = 0; i < this.lastActive.length; i++) { + if (this.lastActive[i]) + this.getDatasetMeta(this.lastActive[i]._datasetIndex).controller.removeHoverStyle(this.lastActive[i], this.lastActive[i]._datasetIndex, this.lastActive[i]._index); + } + break; + default: + // Don't change anything + } + } + + // Built in hover styling + if (this.active.length && this.options.hover.mode) { + switch (this.options.hover.mode) { + case 'single': + this.getDatasetMeta(this.active[0]._datasetIndex).controller.setHoverStyle(this.active[0]); + break; + case 'label': + case 'dataset': + for (var j = 0; j < this.active.length; j++) { + if (this.active[j]) + this.getDatasetMeta(this.active[j]._datasetIndex).controller.setHoverStyle(this.active[j]); + } + break; + default: + // Don't change anything + } + } + + + // Built in Tooltips + if (this.options.tooltips.enabled || this.options.tooltips.custom) { + + // The usual updates + this.tooltip.initialize(); + this.tooltip._active = this.tooltipActive; + this.tooltip.update(true); + } + + // Hover animations + this.tooltip.pivot(); + + if (!this.animating) { + var changed; + + helpers.each(this.active, function(element, index) { + if (element !== this.lastActive[index]) { + changed = true; + } + }, this); + + helpers.each(this.tooltipActive, function(element, index) { + if (element !== this.lastTooltipActive[index]) { + changed = true; + } + }, this); + + // If entering, leaving, or changing elements, animate the change via pivot + if ((this.lastActive.length !== this.active.length) || + (this.lastTooltipActive.length !== this.tooltipActive.length) || + changed) { + + this.stop(); + + if (this.options.tooltips.enabled || this.options.tooltips.custom) { + this.tooltip.update(true); + } + + // We only need to render at this point. Updating will cause scales to be recomputed generating flicker & using more + // memory than necessary. + this.render(this.options.hover.animationDuration, true); + } + } + + // Remember Last Actives + this.lastActive = this.active; + this.lastTooltipActive = this.tooltipActive; + return this; + } + }); +}; -module.exports = function(Chart) { - - var helpers = Chart.helpers; - //Create a dictionary of chart types, to allow for extension of existing types - Chart.types = {}; - - //Store a reference to each instance - allowing us to globally resize chart instances on window resize. - //Destroy method on the chart will remove the instance of the chart from this reference. - Chart.instances = {}; - - // Controllers available for dataset visualization eg. bar, line, slice, etc. - Chart.controllers = {}; - - // The main controller of a chart - Chart.Controller = function(instance) { - - this.chart = instance; - this.config = instance.config; - this.options = this.config.options = helpers.configMerge(Chart.defaults.global, Chart.defaults[this.config.type], this.config.options || {}); - this.id = helpers.uid(); - - Object.defineProperty(this, 'data', { - get: function() { - return this.config.data; - } - }); - - //Add the chart instance to the global namespace - Chart.instances[this.id] = this; - - if (this.options.responsive) { - // Silent resize before chart draws - this.resize(true); - } - - this.initialize(); - - return this; - }; - - helpers.extend(Chart.Controller.prototype, { - - initialize: function initialize() { - // Before init plugin notification - Chart.pluginService.notifyPlugins('beforeInit', [this]); - - this.bindEvents(); - - // Make sure controllers are built first so that each dataset is bound to an axis before the scales - // are built - this.ensureScalesHaveIDs(); - this.buildOrUpdateControllers(); - this.buildScales(); - this.buildSurroundingItems(); - this.updateLayout(); - this.resetElements(); - this.initToolTip(); - this.update(); - - // After init plugin notification - Chart.pluginService.notifyPlugins('afterInit', [this]); - - return this; - }, - - clear: function clear() { - helpers.clear(this.chart); - return this; - }, - - stop: function stop() { - // Stops any current animation loop occuring - Chart.animationService.cancelAnimation(this); - return this; - }, - - resize: function resize(silent) { - var canvas = this.chart.canvas; - var newWidth = helpers.getMaximumWidth(this.chart.canvas); - var newHeight = (this.options.maintainAspectRatio && isNaN(this.chart.aspectRatio) === false && isFinite(this.chart.aspectRatio) && this.chart.aspectRatio !== 0) ? newWidth / this.chart.aspectRatio : helpers.getMaximumHeight(this.chart.canvas); - - var sizeChanged = this.chart.width !== newWidth || this.chart.height !== newHeight; - - if (!sizeChanged) - return this; - - canvas.width = this.chart.width = newWidth; - canvas.height = this.chart.height = newHeight; - - helpers.retinaScale(this.chart); - - if (!silent) { - this.stop(); - this.update(this.options.responsiveAnimationDuration); - } - - return this; - }, - ensureScalesHaveIDs: function ensureScalesHaveIDs() { - var defaultXAxisID = 'x-axis-'; - var defaultYAxisID = 'y-axis-'; - - if (this.options.scales) { - if (this.options.scales.xAxes && this.options.scales.xAxes.length) { - helpers.each(this.options.scales.xAxes, function(xAxisOptions, index) { - xAxisOptions.id = xAxisOptions.id || (defaultXAxisID + index); - }); - } - - if (this.options.scales.yAxes && this.options.scales.yAxes.length) { - // Build the y axes - helpers.each(this.options.scales.yAxes, function(yAxisOptions, index) { - yAxisOptions.id = yAxisOptions.id || (defaultYAxisID + index); - }); - } - } - }, - buildScales: function buildScales() { - // Map of scale ID to scale object so we can lookup later - this.scales = {}; - - // Build the x axes - if (this.options.scales) { - if (this.options.scales.xAxes && this.options.scales.xAxes.length) { - helpers.each(this.options.scales.xAxes, function(xAxisOptions, index) { - var xType = helpers.getValueOrDefault(xAxisOptions.type, 'category'); - var ScaleClass = Chart.scaleService.getScaleConstructor(xType); - if (ScaleClass) { - var scale = new ScaleClass({ - ctx: this.chart.ctx, - options: xAxisOptions, - chart: this, - id: xAxisOptions.id - }); - - this.scales[scale.id] = scale; - } - }, this); - } - - if (this.options.scales.yAxes && this.options.scales.yAxes.length) { - // Build the y axes - helpers.each(this.options.scales.yAxes, function(yAxisOptions, index) { - var yType = helpers.getValueOrDefault(yAxisOptions.type, 'linear'); - var ScaleClass = Chart.scaleService.getScaleConstructor(yType); - if (ScaleClass) { - var scale = new ScaleClass({ - ctx: this.chart.ctx, - options: yAxisOptions, - chart: this, - id: yAxisOptions.id - }); - - this.scales[scale.id] = scale; - } - }, this); - } - } - if (this.options.scale) { - // Build radial axes - var ScaleClass = Chart.scaleService.getScaleConstructor(this.options.scale.type); - if (ScaleClass) { - var scale = new ScaleClass({ - ctx: this.chart.ctx, - options: this.options.scale, - chart: this - }); - - this.scale = scale; - - this.scales.radialScale = scale; - } - } - - Chart.scaleService.addScalesToLayout(this); - }, - - buildSurroundingItems: function() { - if (this.options.title) { - this.titleBlock = new Chart.Title({ - ctx: this.chart.ctx, - options: this.options.title, - chart: this - }); - - Chart.layoutService.addBox(this, this.titleBlock); - } - - if (this.options.legend) { - this.legend = new Chart.Legend({ - ctx: this.chart.ctx, - options: this.options.legend, - chart: this - }); - - Chart.layoutService.addBox(this, this.legend); - } - }, - - updateLayout: function() { - Chart.layoutService.update(this, this.chart.width, this.chart.height); - }, - - buildOrUpdateControllers: function buildOrUpdateControllers() { - var types = []; - var newControllers = []; - - helpers.each(this.data.datasets, function(dataset, datasetIndex) { - var meta = this.getDatasetMeta(datasetIndex); - if (!meta.type) { - meta.type = dataset.type || this.config.type; - } - - types.push(meta.type); - - if (meta.controller) { - meta.controller.updateIndex(datasetIndex); - } else { - meta.controller = new Chart.controllers[meta.type](this, datasetIndex); - newControllers.push(meta.controller); - } - }, this); - - if (types.length > 1) { - for (var i = 1; i < types.length; i++) { - if (types[i] !== types[i - 1]) { - this.isCombo = true; - break; - } - } - } - - return newControllers; - }, - - resetElements: function resetElements() { - helpers.each(this.data.datasets, function(dataset, datasetIndex) { - this.getDatasetMeta(datasetIndex).controller.reset(); - }, this); - }, - - update: function update(animationDuration, lazy) { - Chart.pluginService.notifyPlugins('beforeUpdate', [this]); - - // In case the entire data object changed - this.tooltip._data = this.data; - - // Make sure dataset controllers are updated and new controllers are reset - var newControllers = this.buildOrUpdateControllers(); - - // Make sure all dataset controllers have correct meta data counts - helpers.each(this.data.datasets, function(dataset, datasetIndex) { - this.getDatasetMeta(datasetIndex).controller.buildOrUpdateElements(); - }, this); - - Chart.layoutService.update(this, this.chart.width, this.chart.height); - - // Can only reset the new controllers after the scales have been updated - helpers.each(newControllers, function(controller) { - controller.reset(); - }); - - // This will loop through any data and do the appropriate element update for the type - helpers.each(this.data.datasets, function(dataset, datasetIndex) { - this.getDatasetMeta(datasetIndex).controller.update(); - }, this); - - this.render(animationDuration, lazy); - - Chart.pluginService.notifyPlugins('afterUpdate', [this]); - }, - - render: function render(duration, lazy) { - Chart.pluginService.notifyPlugins('beforeRender', [this]); - - if (this.options.animation && ((typeof duration !== 'undefined' && duration !== 0) || (typeof duration === 'undefined' && this.options.animation.duration !== 0))) { - var animation = new Chart.Animation(); - animation.numSteps = (duration || this.options.animation.duration) / 16.66; //60 fps - animation.easing = this.options.animation.easing; - - // render function - animation.render = function(chartInstance, animationObject) { - var easingFunction = helpers.easingEffects[animationObject.easing]; - var stepDecimal = animationObject.currentStep / animationObject.numSteps; - var easeDecimal = easingFunction(stepDecimal); - - chartInstance.draw(easeDecimal, stepDecimal, animationObject.currentStep); - }; - - // user events - animation.onAnimationProgress = this.options.animation.onProgress; - animation.onAnimationComplete = this.options.animation.onComplete; - - Chart.animationService.addAnimation(this, animation, duration, lazy); - } else { - this.draw(); - if (this.options.animation && this.options.animation.onComplete && this.options.animation.onComplete.call) { - this.options.animation.onComplete.call(this); - } - } - return this; - }, - - draw: function(ease) { - var easingDecimal = ease || 1; - this.clear(); - - Chart.pluginService.notifyPlugins('beforeDraw', [this, easingDecimal]); - - // Draw all the scales - helpers.each(this.boxes, function(box) { - box.draw(this.chartArea); - }, this); - if (this.scale) { - this.scale.draw(); - } - - // Clip out the chart area so that anything outside does not draw. This is necessary for zoom and pan to function - this.chart.ctx.save(); - this.chart.ctx.beginPath(); - this.chart.ctx.rect(this.chartArea.left, this.chartArea.top, this.chartArea.right - this.chartArea.left, this.chartArea.bottom - this.chartArea.top); - this.chart.ctx.clip(); - - // Draw each dataset via its respective controller (reversed to support proper line stacking) - helpers.each(this.data.datasets, function(dataset, datasetIndex) { - if (this.isDatasetVisible(datasetIndex)) { - this.getDatasetMeta(datasetIndex).controller.draw(ease); - } - }, this, true); - - // Restore from the clipping operation - this.chart.ctx.restore(); - - // Finally draw the tooltip - this.tooltip.transition(easingDecimal).draw(); - - Chart.pluginService.notifyPlugins('afterDraw', [this, easingDecimal]); - }, - - // Get the single element that was clicked on - // @return : An object containing the dataset index and element index of the matching element. Also contains the rectangle that was draw - getElementAtEvent: function(e) { - var eventPosition = helpers.getRelativePosition(e, this.chart); - var elementsArray = []; - - helpers.each(this.data.datasets, function(dataset, datasetIndex) { - if (this.isDatasetVisible(datasetIndex)) { - var meta = this.getDatasetMeta(datasetIndex); - helpers.each(meta.data, function(element, index) { - if (element.inRange(eventPosition.x, eventPosition.y)) { - elementsArray.push(element); - return elementsArray; - } - }); - } - }, this); - - return elementsArray; - }, - - getElementsAtEvent: function(e) { - var eventPosition = helpers.getRelativePosition(e, this.chart); - var elementsArray = []; - - var found = (function() { - if (this.data.datasets) { - for (var i = 0; i < this.data.datasets.length; i++) { - var meta = this.getDatasetMeta(i); - if (this.isDatasetVisible(i)) { - for (var j = 0; j < meta.data.length; j++) { - if (meta.data[j].inRange(eventPosition.x, eventPosition.y)) { - return meta.data[j]; - } - } - } - } - } - }).call(this); - - if (!found) { - return elementsArray; - } - - helpers.each(this.data.datasets, function(dataset, datasetIndex) { - if (this.isDatasetVisible(datasetIndex)) { - var meta = this.getDatasetMeta(datasetIndex); - elementsArray.push(meta.data[found._index]); - } - }, this); - - return elementsArray; - }, - - getDatasetAtEvent: function(e) { - var elementsArray = this.getElementAtEvent(e); - - if (elementsArray.length > 0) { - elementsArray = this.getDatasetMeta(elementsArray[0]._datasetIndex).data; - } - - return elementsArray; - }, - - getDatasetMeta: function(datasetIndex) { - var dataset = this.data.datasets[datasetIndex]; - if (!dataset._meta) { - dataset._meta = {}; - } - - var meta = dataset._meta[this.id]; - if (!meta) { - meta = dataset._meta[this.id] = { - type: null, - data: [], - dataset: null, - controller: null, - hidden: null, // See isDatasetVisible() comment - xAxisID: null, - yAxisID: null - }; - } - - return meta; - }, - - getVisibleDatasetCount: function() { - var count = 0; - for (var i = 0, ilen = this.data.datasets.length; i<ilen; ++i) { - if (this.isDatasetVisible(i)) { - count++; - } - } - return count; - }, - - isDatasetVisible: function(datasetIndex) { - var meta = this.getDatasetMeta(datasetIndex); - - // meta.hidden is a per chart dataset hidden flag override with 3 states: if true or false, - // the dataset.hidden value is ignored, else if null, the dataset hidden state is returned. - return typeof meta.hidden === 'boolean'? !meta.hidden : !this.data.datasets[datasetIndex].hidden; - }, - - generateLegend: function generateLegend() { - return this.options.legendCallback(this); - }, - - destroy: function destroy() { - this.clear(); - helpers.unbindEvents(this, this.events); - helpers.removeResizeListener(this.chart.canvas.parentNode); - - // Reset canvas height/width attributes - var canvas = this.chart.canvas; - canvas.width = this.chart.width; - canvas.height = this.chart.height; - - // if we scaled the canvas in response to a devicePixelRatio !== 1, we need to undo that transform here - if (this.chart.originalDevicePixelRatio !== undefined) { - this.chart.ctx.scale(1 / this.chart.originalDevicePixelRatio, 1 / this.chart.originalDevicePixelRatio); - } - - // Reset to the old style since it may have been changed by the device pixel ratio changes - canvas.style.width = this.chart.originalCanvasStyleWidth; - canvas.style.height = this.chart.originalCanvasStyleHeight; - - Chart.pluginService.notifyPlugins('destroy', [this]); - - delete Chart.instances[this.id]; - }, - - toBase64Image: function toBase64Image() { - return this.chart.canvas.toDataURL.apply(this.chart.canvas, arguments); - }, - - initToolTip: function initToolTip() { - this.tooltip = new Chart.Tooltip({ - _chart: this.chart, - _chartInstance: this, - _data: this.data, - _options: this.options - }, this); - }, - - bindEvents: function bindEvents() { - helpers.bindEvents(this, this.options.events, function(evt) { - this.eventHandler(evt); - }); - }, - eventHandler: function eventHandler(e) { - this.lastActive = this.lastActive || []; - this.lastTooltipActive = this.lastTooltipActive || []; - - // Find Active Elements for hover and tooltips - if (e.type === 'mouseout') { - this.active = []; - this.tooltipActive = []; - } else { - - var _this = this; - var getItemsForMode = function(mode) { - switch (mode) { - case 'single': - return _this.getElementAtEvent(e); - case 'label': - return _this.getElementsAtEvent(e); - case 'dataset': - return _this.getDatasetAtEvent(e); - default: - return e; - } - }; - - this.active = getItemsForMode(this.options.hover.mode); - this.tooltipActive = getItemsForMode(this.options.tooltips.mode); - } - - // On Hover hook - if (this.options.hover.onHover) { - this.options.hover.onHover.call(this, this.active); - } - - if (e.type === 'mouseup' || e.type === 'click') { - if (this.options.onClick) { - this.options.onClick.call(this, e, this.active); - } - - if (this.legend && this.legend.handleEvent) { - this.legend.handleEvent(e); - } - } - - // Remove styling for last active (even if it may still be active) - if (this.lastActive.length) { - switch (this.options.hover.mode) { - case 'single': - this.getDatasetMeta(this.lastActive[0]._datasetIndex).controller.removeHoverStyle(this.lastActive[0], this.lastActive[0]._datasetIndex, this.lastActive[0]._index); - break; - case 'label': - case 'dataset': - for (var i = 0; i < this.lastActive.length; i++) { - if (this.lastActive[i]) - this.getDatasetMeta(this.lastActive[i]._datasetIndex).controller.removeHoverStyle(this.lastActive[i], this.lastActive[i]._datasetIndex, this.lastActive[i]._index); - } - break; - default: - // Don't change anything - } - } - - // Built in hover styling - if (this.active.length && this.options.hover.mode) { - switch (this.options.hover.mode) { - case 'single': - this.getDatasetMeta(this.active[0]._datasetIndex).controller.setHoverStyle(this.active[0]); - break; - case 'label': - case 'dataset': - for (var j = 0; j < this.active.length; j++) { - if (this.active[j]) - this.getDatasetMeta(this.active[j]._datasetIndex).controller.setHoverStyle(this.active[j]); - } - break; - default: - // Don't change anything - } - } - - - // Built in Tooltips - if (this.options.tooltips.enabled || this.options.tooltips.custom) { - - // The usual updates - this.tooltip.initialize(); - this.tooltip._active = this.tooltipActive; - this.tooltip.update(); - } - - // Hover animations - this.tooltip.pivot(); - - if (!this.animating) { - var changed; - - helpers.each(this.active, function(element, index) { - if (element !== this.lastActive[index]) { - changed = true; - } - }, this); - - helpers.each(this.tooltipActive, function(element, index) { - if (element !== this.lastTooltipActive[index]) { - changed = true; - } - }, this); - - // If entering, leaving, or changing elements, animate the change via pivot - if ((this.lastActive.length !== this.active.length) || - (this.lastTooltipActive.length !== this.tooltipActive.length) || - changed) { - - this.stop(); - - if (this.options.tooltips.enabled || this.options.tooltips.custom) { - this.tooltip.update(true); - } - - // We only need to render at this point. Updating will cause scales to be recomputed generating flicker & using more - // memory than necessary. - this.render(this.options.hover.animationDuration, true); - } - } - - // Remember Last Actives - this.lastActive = this.active; - this.lastTooltipActive = this.tooltipActive; - return this; - } - }); -}; - },{}],23:[function(require,module,exports){ -"use strict"; - -module.exports = function(Chart) { - - var helpers = Chart.helpers; - - // Base class for all dataset controllers (line, bar, etc) - Chart.DatasetController = function(chart, datasetIndex) { - this.initialize.call(this, chart, datasetIndex); - }; - - helpers.extend(Chart.DatasetController.prototype, { - initialize: function(chart, datasetIndex) { - this.chart = chart; - this.index = datasetIndex; - this.linkScales(); - this.addElements(); - }, - updateIndex: function(datasetIndex) { - this.index = datasetIndex; - }, - - linkScales: function() { - var meta = this.getMeta(); - var dataset = this.getDataset(); - - if (meta.xAxisID === null) { - meta.xAxisID = dataset.xAxisID || this.chart.options.scales.xAxes[0].id; - } - if (meta.yAxisID === null) { - meta.yAxisID = dataset.yAxisID || this.chart.options.scales.yAxes[0].id; - } - }, - - getDataset: function() { - return this.chart.data.datasets[this.index]; - }, - - getMeta: function() { - return this.chart.getDatasetMeta(this.index); - }, - - getScaleForId: function(scaleID) { - return this.chart.scales[scaleID]; - }, - - reset: function() { - this.update(true); - }, - - buildOrUpdateElements: function buildOrUpdateElements() { - // Handle the number of data points changing - var meta = this.getMeta(); - var numData = this.getDataset().data.length; - var numMetaData = meta.data.length; - - // Make sure that we handle number of datapoints changing - if (numData < numMetaData) { - // Remove excess bars for data points that have been removed - meta.data.splice(numData, numMetaData - numData); - } else if (numData > numMetaData) { - // Add new elements - for (var index = numMetaData; index < numData; ++index) { - this.addElementAndReset(index); - } - } - }, - - // Controllers should implement the following - addElements: helpers.noop, - addElementAndReset: helpers.noop, - draw: helpers.noop, - removeHoverStyle: helpers.noop, - setHoverStyle: helpers.noop, - update: helpers.noop - }); - - Chart.DatasetController.extend = helpers.inherits; - +"use strict"; + +module.exports = function(Chart) { + + var helpers = Chart.helpers; + var noop = helpers.noop; + + // Base class for all dataset controllers (line, bar, etc) + Chart.DatasetController = function(chart, datasetIndex) { + this.initialize.call(this, chart, datasetIndex); + }; + + helpers.extend(Chart.DatasetController.prototype, { + initialize: function(chart, datasetIndex) { + this.chart = chart; + this.index = datasetIndex; + this.linkScales(); + this.addElements(); + }, + updateIndex: function(datasetIndex) { + this.index = datasetIndex; + }, + + linkScales: function() { + var meta = this.getMeta(); + var dataset = this.getDataset(); + + if (meta.xAxisID === null) { + meta.xAxisID = dataset.xAxisID || this.chart.options.scales.xAxes[0].id; + } + if (meta.yAxisID === null) { + meta.yAxisID = dataset.yAxisID || this.chart.options.scales.yAxes[0].id; + } + }, + + getDataset: function() { + return this.chart.data.datasets[this.index]; + }, + + getMeta: function() { + return this.chart.getDatasetMeta(this.index); + }, + + getScaleForId: function(scaleID) { + return this.chart.scales[scaleID]; + }, + + reset: function() { + this.update(true); + }, + + buildOrUpdateElements: function buildOrUpdateElements() { + // Handle the number of data points changing + var meta = this.getMeta(), + md = meta.data, + numData = this.getDataset().data.length, + numMetaData = md.length; + + // Make sure that we handle number of datapoints changing + if (numData < numMetaData) { + // Remove excess bars for data points that have been removed + md.splice(numData, numMetaData - numData); + } else if (numData > numMetaData) { + // Add new elements + for (var index = numMetaData; index < numData; ++index) { + this.addElementAndReset(index); + } + } + }, + + // Controllers should implement the following + addElements: noop, + addElementAndReset: noop, + draw: noop, + removeHoverStyle: noop, + setHoverStyle: noop, + update: noop + }); + + Chart.DatasetController.extend = helpers.inherits; }; },{}],24:[function(require,module,exports){ -"use strict"; +"use strict"; + +module.exports = function(Chart) { + + var helpers = Chart.helpers; + + Chart.elements = {}; + + Chart.Element = function(configuration) { + helpers.extend(this, configuration); + this.initialize.apply(this, arguments); + }; + helpers.extend(Chart.Element.prototype, { + initialize: function() { + this.hidden = false; + }, + pivot: function() { + if (!this._view) { + this._view = helpers.clone(this._model); + } + this._start = helpers.clone(this._view); + return this; + }, + transition: function(ease) { + if (!this._view) { + this._view = helpers.clone(this._model); + } + + // No animation -> No Transition + if (ease === 1) { + this._view = this._model; + this._start = null; + return this; + } + + if (!this._start) { + this.pivot(); + } + + helpers.each(this._model, function(value, key) { + + if (key[0] === '_' || !this._model.hasOwnProperty(key)) { + // Only non-underscored properties + } + + // Init if doesn't exist + else if (!this._view.hasOwnProperty(key)) { + if (typeof value === 'number' && !isNaN(this._view[key])) { + this._view[key] = value * ease; + } else { + this._view[key] = value; + } + } + + // No unnecessary computations + else if (value === this._view[key]) { + // It's the same! Woohoo! + } + + // Color transitions if possible + else if (typeof value === 'string') { + try { + var color = helpers.color(this._start[key]).mix(helpers.color(this._model[key]), ease); + this._view[key] = color.rgbString(); + } catch (err) { + this._view[key] = value; + } + } + // Number transitions + else if (typeof value === 'number') { + var startVal = this._start[key] !== undefined && isNaN(this._start[key]) === false ? this._start[key] : 0; + this._view[key] = ((this._model[key] - startVal) * ease) + startVal; + } + // Everything else + else { + this._view[key] = value; + } + }, this); + + return this; + }, + tooltipPosition: function() { + return { + x: this._model.x, + y: this._model.y + }; + }, + hasValue: function() { + return helpers.isNumber(this._model.x) && helpers.isNumber(this._model.y); + } + }); + + Chart.Element.extend = helpers.inherits; + +}; -module.exports = function(Chart) { - - var helpers = Chart.helpers; - - Chart.elements = {}; - - Chart.Element = function(configuration) { - helpers.extend(this, configuration); - this.initialize.apply(this, arguments); - }; - helpers.extend(Chart.Element.prototype, { - initialize: function() { - this.hidden = false; - }, - pivot: function() { - if (!this._view) { - this._view = helpers.clone(this._model); - } - this._start = helpers.clone(this._view); - return this; - }, - transition: function(ease) { - if (!this._view) { - this._view = helpers.clone(this._model); - } - - // No animation -> No Transition - if (ease === 1) { - this._view = this._model; - this._start = null; - return this; - } - - if (!this._start) { - this.pivot(); - } - - helpers.each(this._model, function(value, key) { - - if (key[0] === '_' || !this._model.hasOwnProperty(key)) { - // Only non-underscored properties - } - - // Init if doesn't exist - else if (!this._view.hasOwnProperty(key)) { - if (typeof value === 'number' && !isNaN(this._view[key])) { - this._view[key] = value * ease; - } else { - this._view[key] = value; - } - } - - // No unnecessary computations - else if (value === this._view[key]) { - // It's the same! Woohoo! - } - - // Color transitions if possible - else if (typeof value === 'string') { - try { - var color = helpers.color(this._start[key]).mix(helpers.color(this._model[key]), ease); - this._view[key] = color.rgbString(); - } catch (err) { - this._view[key] = value; - } - } - // Number transitions - else if (typeof value === 'number') { - var startVal = this._start[key] !== undefined && isNaN(this._start[key]) === false ? this._start[key] : 0; - this._view[key] = ((this._model[key] - startVal) * ease) + startVal; - } - // Everything else - else { - this._view[key] = value; - } - }, this); - - return this; - }, - tooltipPosition: function() { - return { - x: this._model.x, - y: this._model.y - }; - }, - hasValue: function() { - return helpers.isNumber(this._model.x) && helpers.isNumber(this._model.y); - } - }); - - Chart.Element.extend = helpers.inherits; - -}; - },{}],25:[function(require,module,exports){ -/*global window: false */ -/*global document: false */ -"use strict"; +/*global window: false */ +/*global document: false */ +"use strict"; + +var color = require('chartjs-color'); + +module.exports = function(Chart) { + + //Global Chart helpers object for utility methods and classes + var helpers = Chart.helpers = {}; + + //-- Basic js utility methods + helpers.each = function(loopable, callback, self, reverse) { + // Check to see if null or undefined firstly. + var i, len; + if (helpers.isArray(loopable)) { + len = loopable.length; + if (reverse) { + for (i = len - 1; i >= 0; i--) { + callback.call(self, loopable[i], i); + } + } else { + for (i = 0; i < len; i++) { + callback.call(self, loopable[i], i); + } + } + } else if (typeof loopable === 'object') { + var keys = Object.keys(loopable); + len = keys.length; + for (i = 0; i < len; i++) { + callback.call(self, loopable[keys[i]], keys[i]); + } + } + }; + helpers.clone = function(obj) { + var objClone = {}; + helpers.each(obj, function(value, key) { + if (obj.hasOwnProperty(key)) { + if (helpers.isArray(value)) { + objClone[key] = value.slice(0); + } else if (typeof value === 'object' && value !== null) { + objClone[key] = helpers.clone(value); + } else { + objClone[key] = value; + } + } + }); + return objClone; + }; + helpers.extend = function(base) { + var len = arguments.length; + var additionalArgs = []; + for (var i = 1; i < len; i++) { + additionalArgs.push(arguments[i]); + } + helpers.each(additionalArgs, function(extensionObject) { + helpers.each(extensionObject, function(value, key) { + if (extensionObject.hasOwnProperty(key)) { + base[key] = value; + } + }); + }); + return base; + }; + // Need a special merge function to chart configs since they are now grouped + helpers.configMerge = function(_base) { + var base = helpers.clone(_base); + helpers.each(Array.prototype.slice.call(arguments, 1), function(extension) { + helpers.each(extension, function(value, key) { + if (extension.hasOwnProperty(key)) { + if (key === 'scales') { + // Scale config merging is complex. Add out own function here for that + base[key] = helpers.scaleMerge(base.hasOwnProperty(key) ? base[key] : {}, value); + + } else if (key === 'scale') { + // Used in polar area & radar charts since there is only one scale + base[key] = helpers.configMerge(base.hasOwnProperty(key) ? base[key] : {}, Chart.scaleService.getScaleDefaults(value.type), value); + } else if (base.hasOwnProperty(key) && helpers.isArray(base[key]) && helpers.isArray(value)) { + // In this case we have an array of objects replacing another array. Rather than doing a strict replace, + // merge. This allows easy scale option merging + var baseArray = base[key]; + + helpers.each(value, function(valueObj, index) { + + if (index < baseArray.length) { + if (typeof baseArray[index] === 'object' && baseArray[index] !== null && typeof valueObj === 'object' && valueObj !== null) { + // Two objects are coming together. Do a merge of them. + baseArray[index] = helpers.configMerge(baseArray[index], valueObj); + } else { + // Just overwrite in this case since there is nothing to merge + baseArray[index] = valueObj; + } + } else { + baseArray.push(valueObj); // nothing to merge + } + }); + + } else if (base.hasOwnProperty(key) && typeof base[key] === "object" && base[key] !== null && typeof value === "object") { + // If we are overwriting an object with an object, do a merge of the properties. + base[key] = helpers.configMerge(base[key], value); + + } else { + // can just overwrite the value in this case + base[key] = value; + } + } + }); + }); + + return base; + }; + helpers.extendDeep = function(_base) { + return _extendDeep.apply(this, arguments); + + function _extendDeep(dst) { + helpers.each(arguments, function(obj) { + if (obj !== dst) { + helpers.each(obj, function(value, key) { + if (dst[key] && dst[key].constructor && dst[key].constructor === Object) { + _extendDeep(dst[key], value); + } else { + dst[key] = value; + } + }); + } + }); + return dst; + } + }; + helpers.scaleMerge = function(_base, extension) { + var base = helpers.clone(_base); + + helpers.each(extension, function(value, key) { + if (extension.hasOwnProperty(key)) { + if (key === 'xAxes' || key === 'yAxes') { + // These properties are arrays of items + if (base.hasOwnProperty(key)) { + helpers.each(value, function(valueObj, index) { + var axisType = helpers.getValueOrDefault(valueObj.type, key === 'xAxes' ? 'category' : 'linear'); + var axisDefaults = Chart.scaleService.getScaleDefaults(axisType); + if (index >= base[key].length || !base[key][index].type) { + base[key].push(helpers.configMerge(axisDefaults, valueObj)); + } else if (valueObj.type && valueObj.type !== base[key][index].type) { + // Type changed. Bring in the new defaults before we bring in valueObj so that valueObj can override the correct scale defaults + base[key][index] = helpers.configMerge(base[key][index], axisDefaults, valueObj); + } else { + // Type is the same + base[key][index] = helpers.configMerge(base[key][index], valueObj); + } + }); + } else { + base[key] = []; + helpers.each(value, function(valueObj) { + var axisType = helpers.getValueOrDefault(valueObj.type, key === 'xAxes' ? 'category' : 'linear'); + base[key].push(helpers.configMerge(Chart.scaleService.getScaleDefaults(axisType), valueObj)); + }); + } + } else if (base.hasOwnProperty(key) && typeof base[key] === "object" && base[key] !== null && typeof value === "object") { + // If we are overwriting an object with an object, do a merge of the properties. + base[key] = helpers.configMerge(base[key], value); + + } else { + // can just overwrite the value in this case + base[key] = value; + } + } + }); + + return base; + }; + helpers.getValueAtIndexOrDefault = function(value, index, defaultValue) { + if (value === undefined || value === null) { + return defaultValue; + } + + if (helpers.isArray(value)) { + return index < value.length ? value[index] : defaultValue; + } + + return value; + }; + helpers.getValueOrDefault = function(value, defaultValue) { + return value === undefined ? defaultValue : value; + }; + helpers.indexOf = function(arrayToSearch, item) { + if (Array.prototype.indexOf) { + return arrayToSearch.indexOf(item); + } else { + for (var i = 0; i < arrayToSearch.length; i++) { + if (arrayToSearch[i] === item) + return i; + } + return -1; + } + }; + helpers.where = function(collection, filterCallback) { + var filtered = []; + + helpers.each(collection, function(item) { + if (filterCallback(item)) { + filtered.push(item); + } + }); + + return filtered; + }; + helpers.findIndex = function(arrayToSearch, callback, thisArg) { + var index = -1; + if (Array.prototype.findIndex) { + index = arrayToSearch.findIndex(callback, thisArg); + } else { + for (var i = 0; i < arrayToSearch.length; ++i) { + thisArg = thisArg !== undefined ? thisArg : arrayToSearch; + + if (callback.call(thisArg, arrayToSearch[i], i, arrayToSearch)) { + index = i; + break; + } + } + } + + return index; + }; + helpers.findNextWhere = function(arrayToSearch, filterCallback, startIndex) { + // Default to start of the array + if (startIndex === undefined || startIndex === null) { + startIndex = -1; + } + for (var i = startIndex + 1; i < arrayToSearch.length; i++) { + var currentItem = arrayToSearch[i]; + if (filterCallback(currentItem)) { + return currentItem; + } + } + }; + helpers.findPreviousWhere = function(arrayToSearch, filterCallback, startIndex) { + // Default to end of the array + if (startIndex === undefined || startIndex === null) { + startIndex = arrayToSearch.length; + } + for (var i = startIndex - 1; i >= 0; i--) { + var currentItem = arrayToSearch[i]; + if (filterCallback(currentItem)) { + return currentItem; + } + } + }; + helpers.inherits = function(extensions) { + //Basic javascript inheritance based on the model created in Backbone.js + var parent = this; + var ChartElement = (extensions && extensions.hasOwnProperty("constructor")) ? extensions.constructor : function() { + return parent.apply(this, arguments); + }; + + var Surrogate = function() { + this.constructor = ChartElement; + }; + Surrogate.prototype = parent.prototype; + ChartElement.prototype = new Surrogate(); + + ChartElement.extend = helpers.inherits; + + if (extensions) { + helpers.extend(ChartElement.prototype, extensions); + } + + ChartElement.__super__ = parent.prototype; + + return ChartElement; + }; + helpers.noop = function() {}; + helpers.uid = (function() { + var id = 0; + return function() { + return id++; + }; + })(); + helpers.warn = function(str) { + //Method for warning of errors + if (console && typeof console.warn === "function") { + console.warn(str); + } + }; + //-- Math methods + helpers.isNumber = function(n) { + return !isNaN(parseFloat(n)) && isFinite(n); + }; + helpers.almostEquals = function(x, y, epsilon) { + return Math.abs(x - y) < epsilon; + }; + helpers.max = function(array) { + return array.reduce(function(max, value) { + if (!isNaN(value)) { + return Math.max(max, value); + } else { + return max; + } + }, Number.NEGATIVE_INFINITY); + }; + helpers.min = function(array) { + return array.reduce(function(min, value) { + if (!isNaN(value)) { + return Math.min(min, value); + } else { + return min; + } + }, Number.POSITIVE_INFINITY); + }; + helpers.sign = function(x) { + if (Math.sign) { + return Math.sign(x); + } else { + x = +x; // convert to a number + if (x === 0 || isNaN(x)) { + return x; + } + return x > 0 ? 1 : -1; + } + }; + helpers.log10 = function(x) { + if (Math.log10) { + return Math.log10(x); + } else { + return Math.log(x) / Math.LN10; + } + }; + helpers.toRadians = function(degrees) { + return degrees * (Math.PI / 180); + }; + helpers.toDegrees = function(radians) { + return radians * (180 / Math.PI); + }; + // Gets the angle from vertical upright to the point about a centre. + helpers.getAngleFromPoint = function(centrePoint, anglePoint) { + var distanceFromXCenter = anglePoint.x - centrePoint.x, + distanceFromYCenter = anglePoint.y - centrePoint.y, + radialDistanceFromCenter = Math.sqrt(distanceFromXCenter * distanceFromXCenter + distanceFromYCenter * distanceFromYCenter); + + var angle = Math.atan2(distanceFromYCenter, distanceFromXCenter); + + if (angle < (-0.5 * Math.PI)) { + angle += 2.0 * Math.PI; // make sure the returned angle is in the range of (-PI/2, 3PI/2] + } + + return { + angle: angle, + distance: radialDistanceFromCenter + }; + }; + helpers.aliasPixel = function(pixelWidth) { + return (pixelWidth % 2 === 0) ? 0 : 0.5; + }; + helpers.splineCurve = function(firstPoint, middlePoint, afterPoint, t) { + //Props to Rob Spencer at scaled innovation for his post on splining between points + //http://scaledinnovation.com/analytics/splines/aboutSplines.html + + // This function must also respect "skipped" points + + var previous = firstPoint.skip ? middlePoint : firstPoint, + current = middlePoint, + next = afterPoint.skip ? middlePoint : afterPoint; + + var d01 = Math.sqrt(Math.pow(current.x - previous.x, 2) + Math.pow(current.y - previous.y, 2)); + var d12 = Math.sqrt(Math.pow(next.x - current.x, 2) + Math.pow(next.y - current.y, 2)); + + var s01 = d01 / (d01 + d12); + var s12 = d12 / (d01 + d12); + + // If all points are the same, s01 & s02 will be inf + s01 = isNaN(s01) ? 0 : s01; + s12 = isNaN(s12) ? 0 : s12; + + var fa = t * s01; // scaling factor for triangle Ta + var fb = t * s12; + + return { + previous: { + x: current.x - fa * (next.x - previous.x), + y: current.y - fa * (next.y - previous.y) + }, + next: { + x: current.x + fb * (next.x - previous.x), + y: current.y + fb * (next.y - previous.y) + } + }; + }; + helpers.nextItem = function(collection, index, loop) { + if (loop) { + return index >= collection.length - 1 ? collection[0] : collection[index + 1]; + } + + return index >= collection.length - 1 ? collection[collection.length - 1] : collection[index + 1]; + }; + helpers.previousItem = function(collection, index, loop) { + if (loop) { + return index <= 0 ? collection[collection.length - 1] : collection[index - 1]; + } + return index <= 0 ? collection[0] : collection[index - 1]; + }; + // Implementation of the nice number algorithm used in determining where axis labels will go + helpers.niceNum = function(range, round) { + var exponent = Math.floor(helpers.log10(range)); + var fraction = range / Math.pow(10, exponent); + var niceFraction; + + if (round) { + if (fraction < 1.5) { + niceFraction = 1; + } else if (fraction < 3) { + niceFraction = 2; + } else if (fraction < 7) { + niceFraction = 5; + } else { + niceFraction = 10; + } + } else { + if (fraction <= 1.0) { + niceFraction = 1; + } else if (fraction <= 2) { + niceFraction = 2; + } else if (fraction <= 5) { + niceFraction = 5; + } else { + niceFraction = 10; + } + } + + return niceFraction * Math.pow(10, exponent); + }; + //Easing functions adapted from Robert Penner's easing equations + //http://www.robertpenner.com/easing/ + var easingEffects = helpers.easingEffects = { + linear: function(t) { + return t; + }, + easeInQuad: function(t) { + return t * t; + }, + easeOutQuad: function(t) { + return -1 * t * (t - 2); + }, + easeInOutQuad: function(t) { + if ((t /= 1 / 2) < 1) { + return 1 / 2 * t * t; + } + return -1 / 2 * ((--t) * (t - 2) - 1); + }, + easeInCubic: function(t) { + return t * t * t; + }, + easeOutCubic: function(t) { + return 1 * ((t = t / 1 - 1) * t * t + 1); + }, + easeInOutCubic: function(t) { + if ((t /= 1 / 2) < 1) { + return 1 / 2 * t * t * t; + } + return 1 / 2 * ((t -= 2) * t * t + 2); + }, + easeInQuart: function(t) { + return t * t * t * t; + }, + easeOutQuart: function(t) { + return -1 * ((t = t / 1 - 1) * t * t * t - 1); + }, + easeInOutQuart: function(t) { + if ((t /= 1 / 2) < 1) { + return 1 / 2 * t * t * t * t; + } + return -1 / 2 * ((t -= 2) * t * t * t - 2); + }, + easeInQuint: function(t) { + return 1 * (t /= 1) * t * t * t * t; + }, + easeOutQuint: function(t) { + return 1 * ((t = t / 1 - 1) * t * t * t * t + 1); + }, + easeInOutQuint: function(t) { + if ((t /= 1 / 2) < 1) { + return 1 / 2 * t * t * t * t * t; + } + return 1 / 2 * ((t -= 2) * t * t * t * t + 2); + }, + easeInSine: function(t) { + return -1 * Math.cos(t / 1 * (Math.PI / 2)) + 1; + }, + easeOutSine: function(t) { + return 1 * Math.sin(t / 1 * (Math.PI / 2)); + }, + easeInOutSine: function(t) { + return -1 / 2 * (Math.cos(Math.PI * t / 1) - 1); + }, + easeInExpo: function(t) { + return (t === 0) ? 1 : 1 * Math.pow(2, 10 * (t / 1 - 1)); + }, + easeOutExpo: function(t) { + return (t === 1) ? 1 : 1 * (-Math.pow(2, -10 * t / 1) + 1); + }, + easeInOutExpo: function(t) { + if (t === 0) { + return 0; + } + if (t === 1) { + return 1; + } + if ((t /= 1 / 2) < 1) { + return 1 / 2 * Math.pow(2, 10 * (t - 1)); + } + return 1 / 2 * (-Math.pow(2, -10 * --t) + 2); + }, + easeInCirc: function(t) { + if (t >= 1) { + return t; + } + return -1 * (Math.sqrt(1 - (t /= 1) * t) - 1); + }, + easeOutCirc: function(t) { + return 1 * Math.sqrt(1 - (t = t / 1 - 1) * t); + }, + easeInOutCirc: function(t) { + if ((t /= 1 / 2) < 1) { + return -1 / 2 * (Math.sqrt(1 - t * t) - 1); + } + return 1 / 2 * (Math.sqrt(1 - (t -= 2) * t) + 1); + }, + easeInElastic: function(t) { + var s = 1.70158; + var p = 0; + var a = 1; + if (t === 0) { + return 0; + } + if ((t /= 1) === 1) { + return 1; + } + if (!p) { + p = 1 * 0.3; + } + if (a < Math.abs(1)) { + a = 1; + s = p / 4; + } else { + s = p / (2 * Math.PI) * Math.asin(1 / a); + } + return -(a * Math.pow(2, 10 * (t -= 1)) * Math.sin((t * 1 - s) * (2 * Math.PI) / p)); + }, + easeOutElastic: function(t) { + var s = 1.70158; + var p = 0; + var a = 1; + if (t === 0) { + return 0; + } + if ((t /= 1) === 1) { + return 1; + } + if (!p) { + p = 1 * 0.3; + } + if (a < Math.abs(1)) { + a = 1; + s = p / 4; + } else { + s = p / (2 * Math.PI) * Math.asin(1 / a); + } + return a * Math.pow(2, -10 * t) * Math.sin((t * 1 - s) * (2 * Math.PI) / p) + 1; + }, + easeInOutElastic: function(t) { + var s = 1.70158; + var p = 0; + var a = 1; + if (t === 0) { + return 0; + } + if ((t /= 1 / 2) === 2) { + return 1; + } + if (!p) { + p = 1 * (0.3 * 1.5); + } + if (a < Math.abs(1)) { + a = 1; + s = p / 4; + } else { + s = p / (2 * Math.PI) * Math.asin(1 / a); + } + if (t < 1) { + return -0.5 * (a * Math.pow(2, 10 * (t -= 1)) * Math.sin((t * 1 - s) * (2 * Math.PI) / p)); + } + return a * Math.pow(2, -10 * (t -= 1)) * Math.sin((t * 1 - s) * (2 * Math.PI) / p) * 0.5 + 1; + }, + easeInBack: function(t) { + var s = 1.70158; + return 1 * (t /= 1) * t * ((s + 1) * t - s); + }, + easeOutBack: function(t) { + var s = 1.70158; + return 1 * ((t = t / 1 - 1) * t * ((s + 1) * t + s) + 1); + }, + easeInOutBack: function(t) { + var s = 1.70158; + if ((t /= 1 / 2) < 1) { + return 1 / 2 * (t * t * (((s *= (1.525)) + 1) * t - s)); + } + return 1 / 2 * ((t -= 2) * t * (((s *= (1.525)) + 1) * t + s) + 2); + }, + easeInBounce: function(t) { + return 1 - easingEffects.easeOutBounce(1 - t); + }, + easeOutBounce: function(t) { + if ((t /= 1) < (1 / 2.75)) { + return 1 * (7.5625 * t * t); + } else if (t < (2 / 2.75)) { + return 1 * (7.5625 * (t -= (1.5 / 2.75)) * t + 0.75); + } else if (t < (2.5 / 2.75)) { + return 1 * (7.5625 * (t -= (2.25 / 2.75)) * t + 0.9375); + } else { + return 1 * (7.5625 * (t -= (2.625 / 2.75)) * t + 0.984375); + } + }, + easeInOutBounce: function(t) { + if (t < 1 / 2) { + return easingEffects.easeInBounce(t * 2) * 0.5; + } + return easingEffects.easeOutBounce(t * 2 - 1) * 0.5 + 1 * 0.5; + } + }; + //Request animation polyfill - http://www.paulirish.com/2011/requestanimationframe-for-smart-animating/ + helpers.requestAnimFrame = (function() { + return window.requestAnimationFrame || + window.webkitRequestAnimationFrame || + window.mozRequestAnimationFrame || + window.oRequestAnimationFrame || + window.msRequestAnimationFrame || + function(callback) { + return window.setTimeout(callback, 1000 / 60); + }; + })(); + helpers.cancelAnimFrame = (function() { + return window.cancelAnimationFrame || + window.webkitCancelAnimationFrame || + window.mozCancelAnimationFrame || + window.oCancelAnimationFrame || + window.msCancelAnimationFrame || + function(callback) { + return window.clearTimeout(callback, 1000 / 60); + }; + })(); + //-- DOM methods + helpers.getRelativePosition = function(evt, chart) { + var mouseX, mouseY; + var e = evt.originalEvent || evt, + canvas = evt.currentTarget || evt.srcElement, + boundingRect = canvas.getBoundingClientRect(); + + if (e.touches && e.touches.length > 0) { + mouseX = e.touches[0].clientX; + mouseY = e.touches[0].clientY; + + } else { + mouseX = e.clientX; + mouseY = e.clientY; + } + + // Scale mouse coordinates into canvas coordinates + // by following the pattern laid out by 'jerryj' in the comments of + // http://www.html5canvastutorials.com/advanced/html5-canvas-mouse-coordinates/ + var paddingLeft = parseFloat(helpers.getStyle(canvas, 'padding-left')); + var paddingTop = parseFloat(helpers.getStyle(canvas, 'padding-top')); + var paddingRight = parseFloat(helpers.getStyle(canvas, 'padding-right')); + var paddingBottom = parseFloat(helpers.getStyle(canvas, 'padding-bottom')); + var width = boundingRect.right - boundingRect.left - paddingLeft - paddingRight; + var height = boundingRect.bottom - boundingRect.top - paddingTop - paddingBottom; + + // We divide by the current device pixel ratio, because the canvas is scaled up by that amount in each direction. However + // the backend model is in unscaled coordinates. Since we are going to deal with our model coordinates, we go back here + mouseX = Math.round((mouseX - boundingRect.left - paddingLeft) / (width) * canvas.width / chart.currentDevicePixelRatio); + mouseY = Math.round((mouseY - boundingRect.top - paddingTop) / (height) * canvas.height / chart.currentDevicePixelRatio); + + return { + x: mouseX, + y: mouseY + }; + + }; + helpers.addEvent = function(node, eventType, method) { + if (node.addEventListener) { + node.addEventListener(eventType, method); + } else if (node.attachEvent) { + node.attachEvent("on" + eventType, method); + } else { + node["on" + eventType] = method; + } + }; + helpers.removeEvent = function(node, eventType, handler) { + if (node.removeEventListener) { + node.removeEventListener(eventType, handler, false); + } else if (node.detachEvent) { + node.detachEvent("on" + eventType, handler); + } else { + node["on" + eventType] = helpers.noop; + } + }; + helpers.bindEvents = function(chartInstance, arrayOfEvents, handler) { + // Create the events object if it's not already present + if (!chartInstance.events) + chartInstance.events = {}; + + helpers.each(arrayOfEvents, function(eventName) { + chartInstance.events[eventName] = function() { + handler.apply(chartInstance, arguments); + }; + helpers.addEvent(chartInstance.chart.canvas, eventName, chartInstance.events[eventName]); + }); + }; + helpers.unbindEvents = function(chartInstance, arrayOfEvents) { + helpers.each(arrayOfEvents, function(handler, eventName) { + helpers.removeEvent(chartInstance.chart.canvas, eventName, handler); + }); + }; + + // Private helper function to convert max-width/max-height values that may be percentages into a number + function parseMaxStyle(styleValue, node, parentProperty) { + var valueInPixels; + if (typeof(styleValue) === 'string') { + valueInPixels = parseInt(styleValue, 10); + + if (styleValue.indexOf('%') != -1) { + // percentage * size in dimension + valueInPixels = valueInPixels / 100 * node.parentNode[parentProperty]; + } + } else { + valueInPixels = styleValue; + } + + return valueInPixels; + } + + // Private helper to get a constraint dimension + // @param domNode : the node to check the constraint on + // @param maxStyle : the style that defines the maximum for the direction we are using (max-width / max-height) + // @param percentageProperty : property of parent to use when calculating width as a percentage + function getConstraintDimension(domNode, maxStyle, percentageProperty) { + var constrainedDimension; + var constrainedNode = document.defaultView.getComputedStyle(domNode)[maxStyle]; + var constrainedContainer = document.defaultView.getComputedStyle(domNode.parentNode)[maxStyle]; + var hasCNode = constrainedNode !== null && constrainedNode !== "none"; + var hasCContainer = constrainedContainer !== null && constrainedContainer !== "none"; + + if (hasCNode || hasCContainer) { + constrainedDimension = Math.min((hasCNode ? parseMaxStyle(constrainedNode, domNode, percentageProperty) : Number.POSITIVE_INFINITY), (hasCContainer ? parseMaxStyle(constrainedContainer, domNode.parentNode, percentageProperty) : Number.POSITIVE_INFINITY)); + } + return constrainedDimension; + } + // returns Number or undefined if no constraint + helpers.getConstraintWidth = function(domNode) { + return getConstraintDimension(domNode, 'max-width', 'clientWidth'); + }; + // returns Number or undefined if no constraint + helpers.getConstraintHeight = function(domNode) { + return getConstraintDimension(domNode, 'max-height', 'clientHeight'); + }; + helpers.getMaximumWidth = function(domNode) { + var container = domNode.parentNode; + var padding = parseInt(helpers.getStyle(container, 'padding-left')) + parseInt(helpers.getStyle(container, 'padding-right')); + + var w = container.clientWidth - padding; + var cw = helpers.getConstraintWidth(domNode); + if (cw !== undefined) { + w = Math.min(w, cw); + } + + return w; + }; + helpers.getMaximumHeight = function(domNode) { + var container = domNode.parentNode; + var padding = parseInt(helpers.getStyle(container, 'padding-top')) + parseInt(helpers.getStyle(container, 'padding-bottom')); + + var h = container.clientHeight - padding; + var ch = helpers.getConstraintHeight(domNode); + if (ch !== undefined) { + h = Math.min(h, ch); + } + + return h; + }; + helpers.getStyle = function(el, property) { + return el.currentStyle ? + el.currentStyle[property] : + document.defaultView.getComputedStyle(el, null).getPropertyValue(property); + }; + helpers.retinaScale = function(chart) { + var ctx = chart.ctx; + var width = chart.canvas.width; + var height = chart.canvas.height; + var pixelRatio = chart.currentDevicePixelRatio = window.devicePixelRatio || 1; + + if (pixelRatio !== 1) { + ctx.canvas.height = height * pixelRatio; + ctx.canvas.width = width * pixelRatio; + ctx.scale(pixelRatio, pixelRatio); + + // Store the device pixel ratio so that we can go backwards in `destroy`. + // The devicePixelRatio changes with zoom, so there are no guarantees that it is the same + // when destroy is called + chart.originalDevicePixelRatio = chart.originalDevicePixelRatio || pixelRatio; + } + + ctx.canvas.style.width = width + 'px'; + ctx.canvas.style.height = height + 'px'; + }; + //-- Canvas methods + helpers.clear = function(chart) { + chart.ctx.clearRect(0, 0, chart.width, chart.height); + }; + helpers.fontString = function(pixelSize, fontStyle, fontFamily) { + return fontStyle + " " + pixelSize + "px " + fontFamily; + }; + helpers.longestText = function(ctx, font, arrayOfStrings, cache) { + cache = cache || {}; + cache.data = cache.data || {}; + cache.garbageCollect = cache.garbageCollect || []; + + if (cache.font !== font) { + cache.data = {}; + cache.garbageCollect = []; + cache.font = font; + } + + ctx.font = font; + var longest = 0; + helpers.each(arrayOfStrings, function(string) { + // Undefined strings should not be measured + if (string !== undefined && string !== null) { + var textWidth = cache.data[string]; + if (!textWidth) { + textWidth = cache.data[string] = ctx.measureText(string).width; + cache.garbageCollect.push(string); + } + + if (textWidth > longest) { + longest = textWidth; + } + } + }); + + var gcLen = cache.garbageCollect.length / 2; + if (gcLen > arrayOfStrings.length) { + for (var i = 0; i < gcLen; i++) { + delete cache.data[cache.garbageCollect[i]]; + } + cache.garbageCollect.splice(0, gcLen); + } + + return longest; + }; + helpers.drawRoundedRectangle = function(ctx, x, y, width, height, radius) { + ctx.beginPath(); + ctx.moveTo(x + radius, y); + ctx.lineTo(x + width - radius, y); + ctx.quadraticCurveTo(x + width, y, x + width, y + radius); + ctx.lineTo(x + width, y + height - radius); + ctx.quadraticCurveTo(x + width, y + height, x + width - radius, y + height); + ctx.lineTo(x + radius, y + height); + ctx.quadraticCurveTo(x, y + height, x, y + height - radius); + ctx.lineTo(x, y + radius); + ctx.quadraticCurveTo(x, y, x + radius, y); + ctx.closePath(); + }; + helpers.color = function(c) { + if (!color) { + console.log('Color.js not found!'); + return c; + } + + /* global CanvasGradient */ + if (c instanceof CanvasGradient) { + return color(Chart.defaults.global.defaultColor); + } + + return color(c); + }; + helpers.addResizeListener = function(node, callback) { + // Hide an iframe before the node + var hiddenIframe = document.createElement('iframe'); + var hiddenIframeClass = 'chartjs-hidden-iframe'; + + if (hiddenIframe.classlist) { + // can use classlist + hiddenIframe.classlist.add(hiddenIframeClass); + } else { + hiddenIframe.setAttribute('class', hiddenIframeClass); + } + + // Set the style + hiddenIframe.style.width = '100%'; + hiddenIframe.style.display = 'block'; + hiddenIframe.style.border = 0; + hiddenIframe.style.height = 0; + hiddenIframe.style.margin = 0; + hiddenIframe.style.position = 'absolute'; + hiddenIframe.style.left = 0; + hiddenIframe.style.right = 0; + hiddenIframe.style.top = 0; + hiddenIframe.style.bottom = 0; + + // Insert the iframe so that contentWindow is available + node.insertBefore(hiddenIframe, node.firstChild); + + (hiddenIframe.contentWindow || hiddenIframe).onresize = function() { + if (callback) { + callback(); + } + }; + }; + helpers.removeResizeListener = function(node) { + var hiddenIframe = node.querySelector('.chartjs-hidden-iframe'); + + // Remove the resize detect iframe + if (hiddenIframe) { + hiddenIframe.parentNode.removeChild(hiddenIframe); + } + }; + helpers.isArray = function(obj) { + if (!Array.isArray) { + return Object.prototype.toString.call(obj) === '[object Array]'; + } + return Array.isArray(obj); + }; + helpers.pushAllIfDefined = function(element, array) { + if (typeof element === "undefined") { + return; + } + + if (helpers.isArray(element)) { + array.push.apply(array, element); + } else { + array.push(element); + } + }; + helpers.callCallback = function(fn, args, _tArg) { + if (fn && typeof fn.call === 'function') { + fn.apply(_tArg, args); + } + }; + helpers.getHoverColor = function(color) { + /* global CanvasPattern */ + return (color instanceof CanvasPattern) ? + color : + helpers.color(color).saturate(0.5).darken(0.1).rgbString(); + }; +}; -var color = require('chartjs-color'); +},{"chartjs-color":3}],26:[function(require,module,exports){ +"use strict"; + +module.exports = function() { + + //Occupy the global variable of Chart, and create a simple base class + var Chart = function(context, config) { + this.config = config; + + // Support a jQuery'd canvas element + if (context.length && context[0].getContext) { + context = context[0]; + } + + // Support a canvas domnode + if (context.getContext) { + context = context.getContext("2d"); + } + + this.ctx = context; + this.canvas = context.canvas; + + // Figure out what the size of the chart will be. + // If the canvas has a specified width and height, we use those else + // we look to see if the canvas node has a CSS width and height. + // If there is still no height, fill the parent container + this.width = context.canvas.width || parseInt(Chart.helpers.getStyle(context.canvas, 'width')) || Chart.helpers.getMaximumWidth(context.canvas); + this.height = context.canvas.height || parseInt(Chart.helpers.getStyle(context.canvas, 'height')) || Chart.helpers.getMaximumHeight(context.canvas); + + this.aspectRatio = this.width / this.height; + + if (isNaN(this.aspectRatio) || isFinite(this.aspectRatio) === false) { + // If the canvas has no size, try and figure out what the aspect ratio will be. + // Some charts prefer square canvases (pie, radar, etc). If that is specified, use that + // else use the canvas default ratio of 2 + this.aspectRatio = config.aspectRatio !== undefined ? config.aspectRatio : 2; + } + + // Store the original style of the element so we can set it back + this.originalCanvasStyleWidth = context.canvas.style.width; + this.originalCanvasStyleHeight = context.canvas.style.height; + + // High pixel density displays - multiply the size of the canvas height/width by the device pixel ratio, then scale. + Chart.helpers.retinaScale(this); + + if (config) { + this.controller = new Chart.Controller(this); + } + + // Always bind this so that if the responsive state changes we still work + var _this = this; + Chart.helpers.addResizeListener(context.canvas.parentNode, function() { + if (_this.controller && _this.controller.config.options.responsive) { + _this.controller.resize(); + } + }); + + return this.controller ? this.controller : this; + + }; + + //Globally expose the defaults to allow for user updating/changing + Chart.defaults = { + global: { + responsive: true, + responsiveAnimationDuration: 0, + maintainAspectRatio: true, + events: ["mousemove", "mouseout", "click", "touchstart", "touchmove"], + hover: { + onHover: null, + mode: 'single', + animationDuration: 400 + }, + onClick: null, + defaultColor: 'rgba(0,0,0,0.1)', + defaultFontColor: '#666', + defaultFontFamily: "'Helvetica Neue', 'Helvetica', 'Arial', sans-serif", + defaultFontSize: 12, + defaultFontStyle: 'normal', + showLines: true, + + // Element defaults defined in element extensions + elements: {}, + + // Legend callback string + legendCallback: function(chart) { + var text = []; + text.push('<ul class="' + chart.id + '-legend">'); + for (var i = 0; i < chart.data.datasets.length; i++) { + text.push('<li><span style="background-color:' + chart.data.datasets[i].backgroundColor + '"></span>'); + if (chart.data.datasets[i].label) { + text.push(chart.data.datasets[i].label); + } + text.push('</li>'); + } + text.push('</ul>'); + + return text.join(""); + } + } + }; + + return Chart; + +}; -module.exports = function(Chart) { - - //Global Chart helpers object for utility methods and classes - var helpers = Chart.helpers = {}; - - //-- Basic js utility methods - helpers.each = function(loopable, callback, self, reverse) { - // Check to see if null or undefined firstly. - var i, len; - if (helpers.isArray(loopable)) { - len = loopable.length; - if (reverse) { - for (i = len - 1; i >= 0; i--) { - callback.call(self, loopable[i], i); - } - } else { - for (i = 0; i < len; i++) { - callback.call(self, loopable[i], i); - } - } - } else if (typeof loopable === 'object') { - var keys = Object.keys(loopable); - len = keys.length; - for (i = 0; i < len; i++) { - callback.call(self, loopable[keys[i]], keys[i]); - } - } - }; - helpers.clone = function(obj) { - var objClone = {}; - helpers.each(obj, function(value, key) { - if (obj.hasOwnProperty(key)) { - if (helpers.isArray(value)) { - objClone[key] = value.slice(0); - } else if (typeof value === 'object' && value !== null) { - objClone[key] = helpers.clone(value); - } else { - objClone[key] = value; - } - } - }); - return objClone; - }; - helpers.extend = function(base) { - var len = arguments.length; - var additionalArgs = []; - for (var i = 1; i < len; i++) { - additionalArgs.push(arguments[i]); - } - helpers.each(additionalArgs, function(extensionObject) { - helpers.each(extensionObject, function(value, key) { - if (extensionObject.hasOwnProperty(key)) { - base[key] = value; - } - }); - }); - return base; - }; - // Need a special merge function to chart configs since they are now grouped - helpers.configMerge = function(_base) { - var base = helpers.clone(_base); - helpers.each(Array.prototype.slice.call(arguments, 1), function(extension) { - helpers.each(extension, function(value, key) { - if (extension.hasOwnProperty(key)) { - if (key === 'scales') { - // Scale config merging is complex. Add out own function here for that - base[key] = helpers.scaleMerge(base.hasOwnProperty(key) ? base[key] : {}, value); - - } else if (key === 'scale') { - // Used in polar area & radar charts since there is only one scale - base[key] = helpers.configMerge(base.hasOwnProperty(key) ? base[key] : {}, Chart.scaleService.getScaleDefaults(value.type), value); - } else if (base.hasOwnProperty(key) && helpers.isArray(base[key]) && helpers.isArray(value)) { - // In this case we have an array of objects replacing another array. Rather than doing a strict replace, - // merge. This allows easy scale option merging - var baseArray = base[key]; - - helpers.each(value, function(valueObj, index) { - - if (index < baseArray.length) { - if (typeof baseArray[index] === 'object' && baseArray[index] !== null && typeof valueObj === 'object' && valueObj !== null) { - // Two objects are coming together. Do a merge of them. - baseArray[index] = helpers.configMerge(baseArray[index], valueObj); - } else { - // Just overwrite in this case since there is nothing to merge - baseArray[index] = valueObj; - } - } else { - baseArray.push(valueObj); // nothing to merge - } - }); - - } else if (base.hasOwnProperty(key) && typeof base[key] === "object" && base[key] !== null && typeof value === "object") { - // If we are overwriting an object with an object, do a merge of the properties. - base[key] = helpers.configMerge(base[key], value); - - } else { - // can just overwrite the value in this case - base[key] = value; - } - } - }); - }); - - return base; - }; - helpers.extendDeep = function(_base) { - return _extendDeep.apply(this, arguments); - - function _extendDeep(dst) { - helpers.each(arguments, function(obj) { - if (obj !== dst) { - helpers.each(obj, function(value, key) { - if (dst[key] && dst[key].constructor && dst[key].constructor === Object) { - _extendDeep(dst[key], value); - } else { - dst[key] = value; - } - }); - } - }); - return dst; - } - }; - helpers.scaleMerge = function(_base, extension) { - var base = helpers.clone(_base); - - helpers.each(extension, function(value, key) { - if (extension.hasOwnProperty(key)) { - if (key === 'xAxes' || key === 'yAxes') { - // These properties are arrays of items - if (base.hasOwnProperty(key)) { - helpers.each(value, function(valueObj, index) { - var axisType = helpers.getValueOrDefault(valueObj.type, key === 'xAxes' ? 'category' : 'linear'); - var axisDefaults = Chart.scaleService.getScaleDefaults(axisType); - if (index >= base[key].length || !base[key][index].type) { - base[key].push(helpers.configMerge(axisDefaults, valueObj)); - } else if (valueObj.type && valueObj.type !== base[key][index].type) { - // Type changed. Bring in the new defaults before we bring in valueObj so that valueObj can override the correct scale defaults - base[key][index] = helpers.configMerge(base[key][index], axisDefaults, valueObj); - } else { - // Type is the same - base[key][index] = helpers.configMerge(base[key][index], valueObj); - } - }); - } else { - base[key] = []; - helpers.each(value, function(valueObj) { - var axisType = helpers.getValueOrDefault(valueObj.type, key === 'xAxes' ? 'category' : 'linear'); - base[key].push(helpers.configMerge(Chart.scaleService.getScaleDefaults(axisType), valueObj)); - }); - } - } else if (base.hasOwnProperty(key) && typeof base[key] === "object" && base[key] !== null && typeof value === "object") { - // If we are overwriting an object with an object, do a merge of the properties. - base[key] = helpers.configMerge(base[key], value); - - } else { - // can just overwrite the value in this case - base[key] = value; - } - } - }); - - return base; - }; - helpers.getValueAtIndexOrDefault = function(value, index, defaultValue) { - if (value === undefined || value === null) { - return defaultValue; - } - - if (helpers.isArray(value)) { - return index < value.length ? value[index] : defaultValue; - } - - return value; - }; - helpers.getValueOrDefault = function(value, defaultValue) { - return value === undefined ? defaultValue : value; - }; - helpers.indexOf = function(arrayToSearch, item) { - if (Array.prototype.indexOf) { - return arrayToSearch.indexOf(item); - } else { - for (var i = 0; i < arrayToSearch.length; i++) { - if (arrayToSearch[i] === item) - return i; - } - return -1; - } - }; - helpers.where = function(collection, filterCallback) { - var filtered = []; - - helpers.each(collection, function(item) { - if (filterCallback(item)) { - filtered.push(item); - } - }); - - return filtered; - }; - helpers.findIndex = function(arrayToSearch, callback, thisArg) { - var index = -1; - if (Array.prototype.findIndex) { - index = arrayToSearch.findIndex(callback, thisArg); - } else { - for (var i = 0; i < arrayToSearch.length; ++i) { - thisArg = thisArg !== undefined ? thisArg : arrayToSearch; - - if (callback.call(thisArg, arrayToSearch[i], i, arrayToSearch)) { - index = i; - break; - } - } - } - - return index; - }; - helpers.findNextWhere = function(arrayToSearch, filterCallback, startIndex) { - // Default to start of the array - if (startIndex === undefined || startIndex === null) { - startIndex = -1; - } - for (var i = startIndex + 1; i < arrayToSearch.length; i++) { - var currentItem = arrayToSearch[i]; - if (filterCallback(currentItem)) { - return currentItem; - } - } - }; - helpers.findPreviousWhere = function(arrayToSearch, filterCallback, startIndex) { - // Default to end of the array - if (startIndex === undefined || startIndex === null) { - startIndex = arrayToSearch.length; - } - for (var i = startIndex - 1; i >= 0; i--) { - var currentItem = arrayToSearch[i]; - if (filterCallback(currentItem)) { - return currentItem; - } - } - }; - helpers.inherits = function(extensions) { - //Basic javascript inheritance based on the model created in Backbone.js - var parent = this; - var ChartElement = (extensions && extensions.hasOwnProperty("constructor")) ? extensions.constructor : function() { - return parent.apply(this, arguments); - }; - - var Surrogate = function() { - this.constructor = ChartElement; - }; - Surrogate.prototype = parent.prototype; - ChartElement.prototype = new Surrogate(); - - ChartElement.extend = helpers.inherits; - - if (extensions) { - helpers.extend(ChartElement.prototype, extensions); - } - - ChartElement.__super__ = parent.prototype; - - return ChartElement; - }; - helpers.noop = function() {}; - helpers.uid = (function() { - var id = 0; - return function() { - return id++; - }; - })(); - helpers.warn = function(str) { - //Method for warning of errors - if (console && typeof console.warn === "function") { - console.warn(str); - } - }; - //-- Math methods - helpers.isNumber = function(n) { - return !isNaN(parseFloat(n)) && isFinite(n); - }; - helpers.almostEquals = function(x, y, epsilon) { - return Math.abs(x - y) < epsilon; - }; - helpers.max = function(array) { - return array.reduce(function(max, value) { - if (!isNaN(value)) { - return Math.max(max, value); - } else { - return max; - } - }, Number.NEGATIVE_INFINITY); - }; - helpers.min = function(array) { - return array.reduce(function(min, value) { - if (!isNaN(value)) { - return Math.min(min, value); - } else { - return min; - } - }, Number.POSITIVE_INFINITY); - }; - helpers.sign = function(x) { - if (Math.sign) { - return Math.sign(x); - } else { - x = +x; // convert to a number - if (x === 0 || isNaN(x)) { - return x; - } - return x > 0 ? 1 : -1; - } - }; - helpers.log10 = function(x) { - if (Math.log10) { - return Math.log10(x); - } else { - return Math.log(x) / Math.LN10; - } - }; - helpers.toRadians = function(degrees) { - return degrees * (Math.PI / 180); - }; - helpers.toDegrees = function(radians) { - return radians * (180 / Math.PI); - }; - // Gets the angle from vertical upright to the point about a centre. - helpers.getAngleFromPoint = function(centrePoint, anglePoint) { - var distanceFromXCenter = anglePoint.x - centrePoint.x, - distanceFromYCenter = anglePoint.y - centrePoint.y, - radialDistanceFromCenter = Math.sqrt(distanceFromXCenter * distanceFromXCenter + distanceFromYCenter * distanceFromYCenter); - - var angle = Math.atan2(distanceFromYCenter, distanceFromXCenter); - - if (angle < (-0.5 * Math.PI)) { - angle += 2.0 * Math.PI; // make sure the returned angle is in the range of (-PI/2, 3PI/2] - } - - return { - angle: angle, - distance: radialDistanceFromCenter - }; - }; - helpers.aliasPixel = function(pixelWidth) { - return (pixelWidth % 2 === 0) ? 0 : 0.5; - }; - helpers.splineCurve = function(firstPoint, middlePoint, afterPoint, t) { - //Props to Rob Spencer at scaled innovation for his post on splining between points - //http://scaledinnovation.com/analytics/splines/aboutSplines.html - - // This function must also respect "skipped" points - - var previous = firstPoint.skip ? middlePoint : firstPoint, - current = middlePoint, - next = afterPoint.skip ? middlePoint : afterPoint; - - var d01 = Math.sqrt(Math.pow(current.x - previous.x, 2) + Math.pow(current.y - previous.y, 2)); - var d12 = Math.sqrt(Math.pow(next.x - current.x, 2) + Math.pow(next.y - current.y, 2)); - - var s01 = d01 / (d01 + d12); - var s12 = d12 / (d01 + d12); - - // If all points are the same, s01 & s02 will be inf - s01 = isNaN(s01) ? 0 : s01; - s12 = isNaN(s12) ? 0 : s12; - - var fa = t * s01; // scaling factor for triangle Ta - var fb = t * s12; - - return { - previous: { - x: current.x - fa * (next.x - previous.x), - y: current.y - fa * (next.y - previous.y) - }, - next: { - x: current.x + fb * (next.x - previous.x), - y: current.y + fb * (next.y - previous.y) - } - }; - }; - helpers.nextItem = function(collection, index, loop) { - if (loop) { - return index >= collection.length - 1 ? collection[0] : collection[index + 1]; - } - - return index >= collection.length - 1 ? collection[collection.length - 1] : collection[index + 1]; - }; - helpers.previousItem = function(collection, index, loop) { - if (loop) { - return index <= 0 ? collection[collection.length - 1] : collection[index - 1]; - } - return index <= 0 ? collection[0] : collection[index - 1]; - }; - // Implementation of the nice number algorithm used in determining where axis labels will go - helpers.niceNum = function(range, round) { - var exponent = Math.floor(helpers.log10(range)); - var fraction = range / Math.pow(10, exponent); - var niceFraction; - - if (round) { - if (fraction < 1.5) { - niceFraction = 1; - } else if (fraction < 3) { - niceFraction = 2; - } else if (fraction < 7) { - niceFraction = 5; - } else { - niceFraction = 10; - } - } else { - if (fraction <= 1.0) { - niceFraction = 1; - } else if (fraction <= 2) { - niceFraction = 2; - } else if (fraction <= 5) { - niceFraction = 5; - } else { - niceFraction = 10; - } - } - - return niceFraction * Math.pow(10, exponent); - }; - //Easing functions adapted from Robert Penner's easing equations - //http://www.robertpenner.com/easing/ - var easingEffects = helpers.easingEffects = { - linear: function(t) { - return t; - }, - easeInQuad: function(t) { - return t * t; - }, - easeOutQuad: function(t) { - return -1 * t * (t - 2); - }, - easeInOutQuad: function(t) { - if ((t /= 1 / 2) < 1) { - return 1 / 2 * t * t; - } - return -1 / 2 * ((--t) * (t - 2) - 1); - }, - easeInCubic: function(t) { - return t * t * t; - }, - easeOutCubic: function(t) { - return 1 * ((t = t / 1 - 1) * t * t + 1); - }, - easeInOutCubic: function(t) { - if ((t /= 1 / 2) < 1) { - return 1 / 2 * t * t * t; - } - return 1 / 2 * ((t -= 2) * t * t + 2); - }, - easeInQuart: function(t) { - return t * t * t * t; - }, - easeOutQuart: function(t) { - return -1 * ((t = t / 1 - 1) * t * t * t - 1); - }, - easeInOutQuart: function(t) { - if ((t /= 1 / 2) < 1) { - return 1 / 2 * t * t * t * t; - } - return -1 / 2 * ((t -= 2) * t * t * t - 2); - }, - easeInQuint: function(t) { - return 1 * (t /= 1) * t * t * t * t; - }, - easeOutQuint: function(t) { - return 1 * ((t = t / 1 - 1) * t * t * t * t + 1); - }, - easeInOutQuint: function(t) { - if ((t /= 1 / 2) < 1) { - return 1 / 2 * t * t * t * t * t; - } - return 1 / 2 * ((t -= 2) * t * t * t * t + 2); - }, - easeInSine: function(t) { - return -1 * Math.cos(t / 1 * (Math.PI / 2)) + 1; - }, - easeOutSine: function(t) { - return 1 * Math.sin(t / 1 * (Math.PI / 2)); - }, - easeInOutSine: function(t) { - return -1 / 2 * (Math.cos(Math.PI * t / 1) - 1); - }, - easeInExpo: function(t) { - return (t === 0) ? 1 : 1 * Math.pow(2, 10 * (t / 1 - 1)); - }, - easeOutExpo: function(t) { - return (t === 1) ? 1 : 1 * (-Math.pow(2, -10 * t / 1) + 1); - }, - easeInOutExpo: function(t) { - if (t === 0) { - return 0; - } - if (t === 1) { - return 1; - } - if ((t /= 1 / 2) < 1) { - return 1 / 2 * Math.pow(2, 10 * (t - 1)); - } - return 1 / 2 * (-Math.pow(2, -10 * --t) + 2); - }, - easeInCirc: function(t) { - if (t >= 1) { - return t; - } - return -1 * (Math.sqrt(1 - (t /= 1) * t) - 1); - }, - easeOutCirc: function(t) { - return 1 * Math.sqrt(1 - (t = t / 1 - 1) * t); - }, - easeInOutCirc: function(t) { - if ((t /= 1 / 2) < 1) { - return -1 / 2 * (Math.sqrt(1 - t * t) - 1); - } - return 1 / 2 * (Math.sqrt(1 - (t -= 2) * t) + 1); - }, - easeInElastic: function(t) { - var s = 1.70158; - var p = 0; - var a = 1; - if (t === 0) { - return 0; - } - if ((t /= 1) === 1) { - return 1; - } - if (!p) { - p = 1 * 0.3; - } - if (a < Math.abs(1)) { - a = 1; - s = p / 4; - } else { - s = p / (2 * Math.PI) * Math.asin(1 / a); - } - return -(a * Math.pow(2, 10 * (t -= 1)) * Math.sin((t * 1 - s) * (2 * Math.PI) / p)); - }, - easeOutElastic: function(t) { - var s = 1.70158; - var p = 0; - var a = 1; - if (t === 0) { - return 0; - } - if ((t /= 1) === 1) { - return 1; - } - if (!p) { - p = 1 * 0.3; - } - if (a < Math.abs(1)) { - a = 1; - s = p / 4; - } else { - s = p / (2 * Math.PI) * Math.asin(1 / a); - } - return a * Math.pow(2, -10 * t) * Math.sin((t * 1 - s) * (2 * Math.PI) / p) + 1; - }, - easeInOutElastic: function(t) { - var s = 1.70158; - var p = 0; - var a = 1; - if (t === 0) { - return 0; - } - if ((t /= 1 / 2) === 2) { - return 1; - } - if (!p) { - p = 1 * (0.3 * 1.5); - } - if (a < Math.abs(1)) { - a = 1; - s = p / 4; - } else { - s = p / (2 * Math.PI) * Math.asin(1 / a); - } - if (t < 1) { - return -0.5 * (a * Math.pow(2, 10 * (t -= 1)) * Math.sin((t * 1 - s) * (2 * Math.PI) / p)); - } - return a * Math.pow(2, -10 * (t -= 1)) * Math.sin((t * 1 - s) * (2 * Math.PI) / p) * 0.5 + 1; - }, - easeInBack: function(t) { - var s = 1.70158; - return 1 * (t /= 1) * t * ((s + 1) * t - s); - }, - easeOutBack: function(t) { - var s = 1.70158; - return 1 * ((t = t / 1 - 1) * t * ((s + 1) * t + s) + 1); - }, - easeInOutBack: function(t) { - var s = 1.70158; - if ((t /= 1 / 2) < 1) { - return 1 / 2 * (t * t * (((s *= (1.525)) + 1) * t - s)); - } - return 1 / 2 * ((t -= 2) * t * (((s *= (1.525)) + 1) * t + s) + 2); - }, - easeInBounce: function(t) { - return 1 - easingEffects.easeOutBounce(1 - t); - }, - easeOutBounce: function(t) { - if ((t /= 1) < (1 / 2.75)) { - return 1 * (7.5625 * t * t); - } else if (t < (2 / 2.75)) { - return 1 * (7.5625 * (t -= (1.5 / 2.75)) * t + 0.75); - } else if (t < (2.5 / 2.75)) { - return 1 * (7.5625 * (t -= (2.25 / 2.75)) * t + 0.9375); - } else { - return 1 * (7.5625 * (t -= (2.625 / 2.75)) * t + 0.984375); - } - }, - easeInOutBounce: function(t) { - if (t < 1 / 2) { - return easingEffects.easeInBounce(t * 2) * 0.5; - } - return easingEffects.easeOutBounce(t * 2 - 1) * 0.5 + 1 * 0.5; - } - }; - //Request animation polyfill - http://www.paulirish.com/2011/requestanimationframe-for-smart-animating/ - helpers.requestAnimFrame = (function() { - return window.requestAnimationFrame || - window.webkitRequestAnimationFrame || - window.mozRequestAnimationFrame || - window.oRequestAnimationFrame || - window.msRequestAnimationFrame || - function(callback) { - return window.setTimeout(callback, 1000 / 60); - }; - })(); - helpers.cancelAnimFrame = (function() { - return window.cancelAnimationFrame || - window.webkitCancelAnimationFrame || - window.mozCancelAnimationFrame || - window.oCancelAnimationFrame || - window.msCancelAnimationFrame || - function(callback) { - return window.clearTimeout(callback, 1000 / 60); - }; - })(); - //-- DOM methods - helpers.getRelativePosition = function(evt, chart) { - var mouseX, mouseY; - var e = evt.originalEvent || evt, - canvas = evt.currentTarget || evt.srcElement, - boundingRect = canvas.getBoundingClientRect(); - - if (e.touches && e.touches.length > 0) { - mouseX = e.touches[0].clientX; - mouseY = e.touches[0].clientY; - - } else { - mouseX = e.clientX; - mouseY = e.clientY; - } - - // Scale mouse coordinates into canvas coordinates - // by following the pattern laid out by 'jerryj' in the comments of - // http://www.html5canvastutorials.com/advanced/html5-canvas-mouse-coordinates/ - var paddingLeft = parseFloat(helpers.getStyle(canvas, 'padding-left')); - var paddingTop = parseFloat(helpers.getStyle(canvas, 'padding-top')); - var paddingRight = parseFloat(helpers.getStyle(canvas, 'padding-right')); - var paddingBottom = parseFloat(helpers.getStyle(canvas, 'padding-bottom')); - var width = boundingRect.right - boundingRect.left - paddingLeft - paddingRight; - var height = boundingRect.bottom - boundingRect.top - paddingTop - paddingBottom; - - // We divide by the current device pixel ratio, because the canvas is scaled up by that amount in each direction. However - // the backend model is in unscaled coordinates. Since we are going to deal with our model coordinates, we go back here - mouseX = Math.round((mouseX - boundingRect.left - paddingLeft) / (width) * canvas.width / chart.currentDevicePixelRatio); - mouseY = Math.round((mouseY - boundingRect.top - paddingTop) / (height) * canvas.height / chart.currentDevicePixelRatio); - - return { - x: mouseX, - y: mouseY - }; - - }; - helpers.addEvent = function(node, eventType, method) { - if (node.addEventListener) { - node.addEventListener(eventType, method); - } else if (node.attachEvent) { - node.attachEvent("on" + eventType, method); - } else { - node["on" + eventType] = method; - } - }; - helpers.removeEvent = function(node, eventType, handler) { - if (node.removeEventListener) { - node.removeEventListener(eventType, handler, false); - } else if (node.detachEvent) { - node.detachEvent("on" + eventType, handler); - } else { - node["on" + eventType] = helpers.noop; - } - }; - helpers.bindEvents = function(chartInstance, arrayOfEvents, handler) { - // Create the events object if it's not already present - if (!chartInstance.events) - chartInstance.events = {}; - - helpers.each(arrayOfEvents, function(eventName) { - chartInstance.events[eventName] = function() { - handler.apply(chartInstance, arguments); - }; - helpers.addEvent(chartInstance.chart.canvas, eventName, chartInstance.events[eventName]); - }); - }; - helpers.unbindEvents = function(chartInstance, arrayOfEvents) { - helpers.each(arrayOfEvents, function(handler, eventName) { - helpers.removeEvent(chartInstance.chart.canvas, eventName, handler); - }); - }; - - // Private helper function to convert max-width/max-height values that may be percentages into a number - function parseMaxStyle(styleValue, node, parentProperty) { - var valueInPixels; - if (typeof(styleValue) === 'string') { - valueInPixels = parseInt(styleValue, 10); - - if (styleValue.indexOf('%') != -1) { - // percentage * size in dimension - valueInPixels = valueInPixels / 100 * node.parentNode[parentProperty]; - } - } else { - valueInPixels = styleValue; - } - - return valueInPixels; - } - - // Private helper to get a constraint dimension - // @param domNode : the node to check the constraint on - // @param maxStyle : the style that defines the maximum for the direction we are using (max-width / max-height) - // @param percentageProperty : property of parent to use when calculating width as a percentage - function getConstraintDimension(domNode, maxStyle, percentageProperty) { - var constrainedDimension; - var constrainedNode = document.defaultView.getComputedStyle(domNode)[maxStyle]; - var constrainedContainer = document.defaultView.getComputedStyle(domNode.parentNode)[maxStyle]; - var hasCNode = constrainedNode !== null && constrainedNode !== "none"; - var hasCContainer = constrainedContainer !== null && constrainedContainer !== "none"; - - if (hasCNode || hasCContainer) { - constrainedDimension = Math.min((hasCNode ? parseMaxStyle(constrainedNode, domNode, percentageProperty) : Number.POSITIVE_INFINITY), (hasCContainer ? parseMaxStyle(constrainedContainer, domNode.parentNode, percentageProperty) : Number.POSITIVE_INFINITY)); - } - return constrainedDimension; - } - // returns Number or undefined if no constraint - helpers.getConstraintWidth = function(domNode) { - return getConstraintDimension(domNode, 'max-width', 'clientWidth'); - }; - // returns Number or undefined if no constraint - helpers.getConstraintHeight = function(domNode) { - return getConstraintDimension(domNode, 'max-height', 'clientHeight'); - }; - helpers.getMaximumWidth = function(domNode) { - var container = domNode.parentNode; - var padding = parseInt(helpers.getStyle(container, 'padding-left')) + parseInt(helpers.getStyle(container, 'padding-right')); - - var w = container.clientWidth - padding; - var cw = helpers.getConstraintWidth(domNode); - if (cw !== undefined) { - w = Math.min(w, cw); - } - - return w; - }; - helpers.getMaximumHeight = function(domNode) { - var container = domNode.parentNode; - var padding = parseInt(helpers.getStyle(container, 'padding-top')) + parseInt(helpers.getStyle(container, 'padding-bottom')); - - var h = container.clientHeight - padding; - var ch = helpers.getConstraintHeight(domNode); - if (ch !== undefined) { - h = Math.min(h, ch); - } - - return h; - }; - helpers.getStyle = function(el, property) { - return el.currentStyle ? - el.currentStyle[property] : - document.defaultView.getComputedStyle(el, null).getPropertyValue(property); - }; - helpers.retinaScale = function(chart) { - var ctx = chart.ctx; - var width = chart.canvas.width; - var height = chart.canvas.height; - var pixelRatio = chart.currentDevicePixelRatio = window.devicePixelRatio || 1; - - if (pixelRatio !== 1) { - ctx.canvas.height = height * pixelRatio; - ctx.canvas.width = width * pixelRatio; - ctx.scale(pixelRatio, pixelRatio); - - // Store the device pixel ratio so that we can go backwards in `destroy`. - // The devicePixelRatio changes with zoom, so there are no guarantees that it is the same - // when destroy is called - chart.originalDevicePixelRatio = chart.originalDevicePixelRatio || pixelRatio; - } - - ctx.canvas.style.width = width + 'px'; - ctx.canvas.style.height = height + 'px'; - }; - //-- Canvas methods - helpers.clear = function(chart) { - chart.ctx.clearRect(0, 0, chart.width, chart.height); - }; - helpers.fontString = function(pixelSize, fontStyle, fontFamily) { - return fontStyle + " " + pixelSize + "px " + fontFamily; - }; - helpers.longestText = function(ctx, font, arrayOfStrings, cache) { - cache = cache || {}; - cache.data = cache.data || {}; - cache.garbageCollect = cache.garbageCollect || []; - - if (cache.font !== font) { - cache.data = {}; - cache.garbageCollect = []; - cache.font = font; - } - - ctx.font = font; - var longest = 0; - helpers.each(arrayOfStrings, function(string) { - // Undefined strings should not be measured - if (string !== undefined && string !== null) { - var textWidth = cache.data[string]; - if (!textWidth) { - textWidth = cache.data[string] = ctx.measureText(string).width; - cache.garbageCollect.push(string); - } - - if (textWidth > longest) { - longest = textWidth; - } - } - }); - - var gcLen = cache.garbageCollect.length / 2; - if (gcLen > arrayOfStrings.length) { - for (var i = 0; i < gcLen; i++) { - delete cache.data[cache.garbageCollect[i]]; - } - cache.garbageCollect.splice(0, gcLen); - } - - return longest; - }; - helpers.drawRoundedRectangle = function(ctx, x, y, width, height, radius) { - ctx.beginPath(); - ctx.moveTo(x + radius, y); - ctx.lineTo(x + width - radius, y); - ctx.quadraticCurveTo(x + width, y, x + width, y + radius); - ctx.lineTo(x + width, y + height - radius); - ctx.quadraticCurveTo(x + width, y + height, x + width - radius, y + height); - ctx.lineTo(x + radius, y + height); - ctx.quadraticCurveTo(x, y + height, x, y + height - radius); - ctx.lineTo(x, y + radius); - ctx.quadraticCurveTo(x, y, x + radius, y); - ctx.closePath(); - }; - helpers.color = function(c) { - if (!color) { - console.log('Color.js not found!'); - return c; - } - - /* global CanvasGradient */ - if (c instanceof CanvasGradient) { - return color(Chart.defaults.global.defaultColor); - } - - return color(c); - }; - helpers.addResizeListener = function(node, callback) { - // Hide an iframe before the node - var hiddenIframe = document.createElement('iframe'); - var hiddenIframeClass = 'chartjs-hidden-iframe'; - - if (hiddenIframe.classlist) { - // can use classlist - hiddenIframe.classlist.add(hiddenIframeClass); - } else { - hiddenIframe.setAttribute('class', hiddenIframeClass); - } - - // Set the style - hiddenIframe.style.width = '100%'; - hiddenIframe.style.display = 'block'; - hiddenIframe.style.border = 0; - hiddenIframe.style.height = 0; - hiddenIframe.style.margin = 0; - hiddenIframe.style.position = 'absolute'; - hiddenIframe.style.left = 0; - hiddenIframe.style.right = 0; - hiddenIframe.style.top = 0; - hiddenIframe.style.bottom = 0; - - // Insert the iframe so that contentWindow is available - node.insertBefore(hiddenIframe, node.firstChild); - - (hiddenIframe.contentWindow || hiddenIframe).onresize = function() { - if (callback) { - callback(); - } - }; - }; - helpers.removeResizeListener = function(node) { - var hiddenIframe = node.querySelector('.chartjs-hidden-iframe'); - - // Remove the resize detect iframe - if (hiddenIframe) { - hiddenIframe.parentNode.removeChild(hiddenIframe); - } - }; - helpers.isArray = function(obj) { - if (!Array.isArray) { - return Object.prototype.toString.call(obj) === '[object Array]'; - } - return Array.isArray(obj); - }; - helpers.pushAllIfDefined = function(element, array) { - if (typeof element === "undefined") { - return; - } - - if (helpers.isArray(element)) { - array.push.apply(array, element); - } else { - array.push(element); - } - }; - helpers.callCallback = function(fn, args, _tArg) { - if (fn && typeof fn.call === 'function') { - fn.apply(_tArg, args); - } - }; - -}; - -},{"chartjs-color":6}],26:[function(require,module,exports){ -"use strict"; - -module.exports = function() { - - //Occupy the global variable of Chart, and create a simple base class - var Chart = function(context, config) { - this.config = config; - - // Support a jQuery'd canvas element - if (context.length && context[0].getContext) { - context = context[0]; - } - - // Support a canvas domnode - if (context.getContext) { - context = context.getContext("2d"); - } - - this.ctx = context; - this.canvas = context.canvas; - - // Figure out what the size of the chart will be. - // If the canvas has a specified width and height, we use those else - // we look to see if the canvas node has a CSS width and height. - // If there is still no height, fill the parent container - this.width = context.canvas.width || parseInt(Chart.helpers.getStyle(context.canvas, 'width')) || Chart.helpers.getMaximumWidth(context.canvas); - this.height = context.canvas.height || parseInt(Chart.helpers.getStyle(context.canvas, 'height')) || Chart.helpers.getMaximumHeight(context.canvas); - - this.aspectRatio = this.width / this.height; - - if (isNaN(this.aspectRatio) || isFinite(this.aspectRatio) === false) { - // If the canvas has no size, try and figure out what the aspect ratio will be. - // Some charts prefer square canvases (pie, radar, etc). If that is specified, use that - // else use the canvas default ratio of 2 - this.aspectRatio = config.aspectRatio !== undefined ? config.aspectRatio : 2; - } - - // Store the original style of the element so we can set it back - this.originalCanvasStyleWidth = context.canvas.style.width; - this.originalCanvasStyleHeight = context.canvas.style.height; - - // High pixel density displays - multiply the size of the canvas height/width by the device pixel ratio, then scale. - Chart.helpers.retinaScale(this); - - if (config) { - this.controller = new Chart.Controller(this); - } - - // Always bind this so that if the responsive state changes we still work - var _this = this; - Chart.helpers.addResizeListener(context.canvas.parentNode, function() { - if (_this.controller && _this.controller.config.options.responsive) { - _this.controller.resize(); - } - }); - - return this.controller ? this.controller : this; - - }; - - //Globally expose the defaults to allow for user updating/changing - Chart.defaults = { - global: { - responsive: true, - responsiveAnimationDuration: 0, - maintainAspectRatio: true, - events: ["mousemove", "mouseout", "click", "touchstart", "touchmove"], - hover: { - onHover: null, - mode: 'single', - animationDuration: 400 - }, - onClick: null, - defaultColor: 'rgba(0,0,0,0.1)', - defaultFontColor: '#666', - defaultFontFamily: "'Helvetica Neue', 'Helvetica', 'Arial', sans-serif", - defaultFontSize: 12, - defaultFontStyle: 'normal', - showLines: true, - - // Element defaults defined in element extensions - elements: {}, - - // Legend callback string - legendCallback: function(chart) { - var text = []; - text.push('<ul class="' + chart.id + '-legend">'); - for (var i = 0; i < chart.data.datasets.length; i++) { - text.push('<li><span style="background-color:' + chart.data.datasets[i].backgroundColor + '"></span>'); - if (chart.data.datasets[i].label) { - text.push(chart.data.datasets[i].label); - } - text.push('</li>'); - } - text.push('</ul>'); - - return text.join(""); - } - } - }; - - return Chart; - -}; - },{}],27:[function(require,module,exports){ -"use strict"; +"use strict"; + +module.exports = function(Chart) { + + var helpers = Chart.helpers; + + // The layout service is very self explanatory. It's responsible for the layout within a chart. + // Scales, Legends and Plugins all rely on the layout service and can easily register to be placed anywhere they need + // It is this service's responsibility of carrying out that layout. + Chart.layoutService = { + defaults: {}, + + // Register a box to a chartInstance. A box is simply a reference to an object that requires layout. eg. Scales, Legend, Plugins. + addBox: function(chartInstance, box) { + if (!chartInstance.boxes) { + chartInstance.boxes = []; + } + chartInstance.boxes.push(box); + }, + + removeBox: function(chartInstance, box) { + if (!chartInstance.boxes) { + return; + } + chartInstance.boxes.splice(chartInstance.boxes.indexOf(box), 1); + }, + + // The most important function + update: function(chartInstance, width, height) { + + if (!chartInstance) { + return; + } + + var xPadding = 0; + var yPadding = 0; + + var leftBoxes = helpers.where(chartInstance.boxes, function(box) { + return box.options.position === "left"; + }); + var rightBoxes = helpers.where(chartInstance.boxes, function(box) { + return box.options.position === "right"; + }); + var topBoxes = helpers.where(chartInstance.boxes, function(box) { + return box.options.position === "top"; + }); + var bottomBoxes = helpers.where(chartInstance.boxes, function(box) { + return box.options.position === "bottom"; + }); + + // Boxes that overlay the chartarea such as the radialLinear scale + var chartAreaBoxes = helpers.where(chartInstance.boxes, function(box) { + return box.options.position === "chartArea"; + }); + + // Ensure that full width boxes are at the very top / bottom + topBoxes.sort(function(a, b) { + return (b.options.fullWidth ? 1 : 0) - (a.options.fullWidth ? 1 : 0); + }); + bottomBoxes.sort(function(a, b) { + return (a.options.fullWidth ? 1 : 0) - (b.options.fullWidth ? 1 : 0); + }); + + // Essentially we now have any number of boxes on each of the 4 sides. + // Our canvas looks like the following. + // The areas L1 and L2 are the left axes. R1 is the right axis, T1 is the top axis and + // B1 is the bottom axis + // There are also 4 quadrant-like locations (left to right instead of clockwise) reserved for chart overlays + // These locations are single-box locations only, when trying to register a chartArea location that is already taken, + // an error will be thrown. + // + // |----------------------------------------------------| + // | T1 (Full Width) | + // |----------------------------------------------------| + // | | | T2 | | + // | |----|-------------------------------------|----| + // | | | C1 | | C2 | | + // | | |----| |----| | + // | | | | | + // | L1 | L2 | ChartArea (C0) | R1 | + // | | | | | + // | | |----| |----| | + // | | | C3 | | C4 | | + // | |----|-------------------------------------|----| + // | | | B1 | | + // |----------------------------------------------------| + // | B2 (Full Width) | + // |----------------------------------------------------| + // + // What we do to find the best sizing, we do the following + // 1. Determine the minimum size of the chart area. + // 2. Split the remaining width equally between each vertical axis + // 3. Split the remaining height equally between each horizontal axis + // 4. Give each layout the maximum size it can be. The layout will return it's minimum size + // 5. Adjust the sizes of each axis based on it's minimum reported size. + // 6. Refit each axis + // 7. Position each axis in the final location + // 8. Tell the chart the final location of the chart area + // 9. Tell any axes that overlay the chart area the positions of the chart area + + // Step 1 + var chartWidth = width - (2 * xPadding); + var chartHeight = height - (2 * yPadding); + var chartAreaWidth = chartWidth / 2; // min 50% + var chartAreaHeight = chartHeight / 2; // min 50% + + // Step 2 + var verticalBoxWidth = (width - chartAreaWidth) / (leftBoxes.length + rightBoxes.length); + + // Step 3 + var horizontalBoxHeight = (height - chartAreaHeight) / (topBoxes.length + bottomBoxes.length); + + // Step 4 + var maxChartAreaWidth = chartWidth; + var maxChartAreaHeight = chartHeight; + var minBoxSizes = []; + + helpers.each(leftBoxes.concat(rightBoxes, topBoxes, bottomBoxes), getMinimumBoxSize); + + function getMinimumBoxSize(box) { + var minSize; + var isHorizontal = box.isHorizontal(); + + if (isHorizontal) { + minSize = box.update(box.options.fullWidth ? chartWidth : maxChartAreaWidth, horizontalBoxHeight); + maxChartAreaHeight -= minSize.height; + } else { + minSize = box.update(verticalBoxWidth, chartAreaHeight); + maxChartAreaWidth -= minSize.width; + } + + minBoxSizes.push({ + horizontal: isHorizontal, + minSize: minSize, + box: box + }); + } + + // At this point, maxChartAreaHeight and maxChartAreaWidth are the size the chart area could + // be if the axes are drawn at their minimum sizes. + + // Steps 5 & 6 + var totalLeftBoxesWidth = xPadding; + var totalRightBoxesWidth = xPadding; + var totalTopBoxesHeight = yPadding; + var totalBottomBoxesHeight = yPadding; + + // Update, and calculate the left and right margins for the horizontal boxes + helpers.each(leftBoxes.concat(rightBoxes), fitBox); + + helpers.each(leftBoxes, function(box) { + totalLeftBoxesWidth += box.width; + }); + + helpers.each(rightBoxes, function(box) { + totalRightBoxesWidth += box.width; + }); + + // Set the Left and Right margins for the horizontal boxes + helpers.each(topBoxes.concat(bottomBoxes), fitBox); + + // Function to fit a box + function fitBox(box) { + var minBoxSize = helpers.findNextWhere(minBoxSizes, function(minBoxSize) { + return minBoxSize.box === box; + }); + + if (minBoxSize) { + if (box.isHorizontal()) { + var scaleMargin = { + left: totalLeftBoxesWidth, + right: totalRightBoxesWidth, + top: 0, + bottom: 0 + }; + + // Don't use min size here because of label rotation. When the labels are rotated, their rotation highly depends + // on the margin. Sometimes they need to increase in size slightly + box.update(box.options.fullWidth ? chartWidth : maxChartAreaWidth, chartHeight / 2, scaleMargin); + } else { + box.update(minBoxSize.minSize.width, maxChartAreaHeight); + } + } + } + + // Figure out how much margin is on the top and bottom of the vertical boxes + helpers.each(topBoxes, function(box) { + totalTopBoxesHeight += box.height; + }); + + helpers.each(bottomBoxes, function(box) { + totalBottomBoxesHeight += box.height; + }); + + // Let the left layout know the final margin + helpers.each(leftBoxes.concat(rightBoxes), finalFitVerticalBox); + + function finalFitVerticalBox(box) { + var minBoxSize = helpers.findNextWhere(minBoxSizes, function(minBoxSize) { + return minBoxSize.box === box; + }); + + var scaleMargin = { + left: 0, + right: 0, + top: totalTopBoxesHeight, + bottom: totalBottomBoxesHeight + }; + + if (minBoxSize) { + box.update(minBoxSize.minSize.width, maxChartAreaHeight, scaleMargin); + } + } + + // Recalculate because the size of each layout might have changed slightly due to the margins (label rotation for instance) + totalLeftBoxesWidth = xPadding; + totalRightBoxesWidth = xPadding; + totalTopBoxesHeight = yPadding; + totalBottomBoxesHeight = yPadding; + + helpers.each(leftBoxes, function(box) { + totalLeftBoxesWidth += box.width; + }); + + helpers.each(rightBoxes, function(box) { + totalRightBoxesWidth += box.width; + }); + + helpers.each(topBoxes, function(box) { + totalTopBoxesHeight += box.height; + }); + helpers.each(bottomBoxes, function(box) { + totalBottomBoxesHeight += box.height; + }); + + // Figure out if our chart area changed. This would occur if the dataset layout label rotation + // changed due to the application of the margins in step 6. Since we can only get bigger, this is safe to do + // without calling `fit` again + var newMaxChartAreaHeight = height - totalTopBoxesHeight - totalBottomBoxesHeight; + var newMaxChartAreaWidth = width - totalLeftBoxesWidth - totalRightBoxesWidth; + + if (newMaxChartAreaWidth !== maxChartAreaWidth || newMaxChartAreaHeight !== maxChartAreaHeight) { + helpers.each(leftBoxes, function(box) { + box.height = newMaxChartAreaHeight; + }); + + helpers.each(rightBoxes, function(box) { + box.height = newMaxChartAreaHeight; + }); + + helpers.each(topBoxes, function(box) { + if (!box.options.fullWidth) { + box.width = newMaxChartAreaWidth; + } + }); + + helpers.each(bottomBoxes, function(box) { + if (!box.options.fullWidth) { + box.width = newMaxChartAreaWidth; + } + }); + + maxChartAreaHeight = newMaxChartAreaHeight; + maxChartAreaWidth = newMaxChartAreaWidth; + } + + // Step 7 - Position the boxes + var left = xPadding; + var top = yPadding; + var right = 0; + var bottom = 0; + + helpers.each(leftBoxes.concat(topBoxes), placeBox); + + // Account for chart width and height + left += maxChartAreaWidth; + top += maxChartAreaHeight; + + helpers.each(rightBoxes, placeBox); + helpers.each(bottomBoxes, placeBox); + + function placeBox(box) { + if (box.isHorizontal()) { + box.left = box.options.fullWidth ? xPadding : totalLeftBoxesWidth; + box.right = box.options.fullWidth ? width - xPadding : totalLeftBoxesWidth + maxChartAreaWidth; + box.top = top; + box.bottom = top + box.height; + + // Move to next point + top = box.bottom; + + } else { + + box.left = left; + box.right = left + box.width; + box.top = totalTopBoxesHeight; + box.bottom = totalTopBoxesHeight + maxChartAreaHeight; + + // Move to next point + left = box.right; + } + } + + // Step 8 + chartInstance.chartArea = { + left: totalLeftBoxesWidth, + top: totalTopBoxesHeight, + right: totalLeftBoxesWidth + maxChartAreaWidth, + bottom: totalTopBoxesHeight + maxChartAreaHeight + }; + + // Step 9 + helpers.each(chartAreaBoxes, function(box) { + box.left = chartInstance.chartArea.left; + box.top = chartInstance.chartArea.top; + box.right = chartInstance.chartArea.right; + box.bottom = chartInstance.chartArea.bottom; + + box.update(maxChartAreaWidth, maxChartAreaHeight); + }); + } + }; +}; -module.exports = function(Chart) { - - var helpers = Chart.helpers; - - // The layout service is very self explanatory. It's responsible for the layout within a chart. - // Scales, Legends and Plugins all rely on the layout service and can easily register to be placed anywhere they need - // It is this service's responsibility of carrying out that layout. - Chart.layoutService = { - defaults: {}, - - // Register a box to a chartInstance. A box is simply a reference to an object that requires layout. eg. Scales, Legend, Plugins. - addBox: function(chartInstance, box) { - if (!chartInstance.boxes) { - chartInstance.boxes = []; - } - chartInstance.boxes.push(box); - }, - - removeBox: function(chartInstance, box) { - if (!chartInstance.boxes) { - return; - } - chartInstance.boxes.splice(chartInstance.boxes.indexOf(box), 1); - }, - - // The most important function - update: function(chartInstance, width, height) { - - if (!chartInstance) { - return; - } - - var xPadding = 0; - var yPadding = 0; - - var leftBoxes = helpers.where(chartInstance.boxes, function(box) { - return box.options.position === "left"; - }); - var rightBoxes = helpers.where(chartInstance.boxes, function(box) { - return box.options.position === "right"; - }); - var topBoxes = helpers.where(chartInstance.boxes, function(box) { - return box.options.position === "top"; - }); - var bottomBoxes = helpers.where(chartInstance.boxes, function(box) { - return box.options.position === "bottom"; - }); - - // Boxes that overlay the chartarea such as the radialLinear scale - var chartAreaBoxes = helpers.where(chartInstance.boxes, function(box) { - return box.options.position === "chartArea"; - }); - - // Ensure that full width boxes are at the very top / bottom - topBoxes.sort(function(a, b) { - return (b.options.fullWidth ? 1 : 0) - (a.options.fullWidth ? 1 : 0); - }); - bottomBoxes.sort(function(a, b) { - return (a.options.fullWidth ? 1 : 0) - (b.options.fullWidth ? 1 : 0); - }); - - // Essentially we now have any number of boxes on each of the 4 sides. - // Our canvas looks like the following. - // The areas L1 and L2 are the left axes. R1 is the right axis, T1 is the top axis and - // B1 is the bottom axis - // There are also 4 quadrant-like locations (left to right instead of clockwise) reserved for chart overlays - // These locations are single-box locations only, when trying to register a chartArea location that is already taken, - // an error will be thrown. - // - // |----------------------------------------------------| - // | T1 (Full Width) | - // |----------------------------------------------------| - // | | | T2 | | - // | |----|-------------------------------------|----| - // | | | C1 | | C2 | | - // | | |----| |----| | - // | | | | | - // | L1 | L2 | ChartArea (C0) | R1 | - // | | | | | - // | | |----| |----| | - // | | | C3 | | C4 | | - // | |----|-------------------------------------|----| - // | | | B1 | | - // |----------------------------------------------------| - // | B2 (Full Width) | - // |----------------------------------------------------| - // - // What we do to find the best sizing, we do the following - // 1. Determine the minimum size of the chart area. - // 2. Split the remaining width equally between each vertical axis - // 3. Split the remaining height equally between each horizontal axis - // 4. Give each layout the maximum size it can be. The layout will return it's minimum size - // 5. Adjust the sizes of each axis based on it's minimum reported size. - // 6. Refit each axis - // 7. Position each axis in the final location - // 8. Tell the chart the final location of the chart area - // 9. Tell any axes that overlay the chart area the positions of the chart area - - // Step 1 - var chartWidth = width - (2 * xPadding); - var chartHeight = height - (2 * yPadding); - var chartAreaWidth = chartWidth / 2; // min 50% - var chartAreaHeight = chartHeight / 2; // min 50% - - // Step 2 - var verticalBoxWidth = (width - chartAreaWidth) / (leftBoxes.length + rightBoxes.length); - - // Step 3 - var horizontalBoxHeight = (height - chartAreaHeight) / (topBoxes.length + bottomBoxes.length); - - // Step 4 - var maxChartAreaWidth = chartWidth; - var maxChartAreaHeight = chartHeight; - var minBoxSizes = []; - - helpers.each(leftBoxes.concat(rightBoxes, topBoxes, bottomBoxes), getMinimumBoxSize); - - function getMinimumBoxSize(box) { - var minSize; - var isHorizontal = box.isHorizontal(); - - if (isHorizontal) { - minSize = box.update(box.options.fullWidth ? chartWidth : maxChartAreaWidth, horizontalBoxHeight); - maxChartAreaHeight -= minSize.height; - } else { - minSize = box.update(verticalBoxWidth, chartAreaHeight); - maxChartAreaWidth -= minSize.width; - } - - minBoxSizes.push({ - horizontal: isHorizontal, - minSize: minSize, - box: box - }); - } - - // At this point, maxChartAreaHeight and maxChartAreaWidth are the size the chart area could - // be if the axes are drawn at their minimum sizes. - - // Steps 5 & 6 - var totalLeftBoxesWidth = xPadding; - var totalRightBoxesWidth = xPadding; - var totalTopBoxesHeight = yPadding; - var totalBottomBoxesHeight = yPadding; - - // Update, and calculate the left and right margins for the horizontal boxes - helpers.each(leftBoxes.concat(rightBoxes), fitBox); - - helpers.each(leftBoxes, function(box) { - totalLeftBoxesWidth += box.width; - }); - - helpers.each(rightBoxes, function(box) { - totalRightBoxesWidth += box.width; - }); - - // Set the Left and Right margins for the horizontal boxes - helpers.each(topBoxes.concat(bottomBoxes), fitBox); - - // Function to fit a box - function fitBox(box) { - var minBoxSize = helpers.findNextWhere(minBoxSizes, function(minBoxSize) { - return minBoxSize.box === box; - }); - - if (minBoxSize) { - if (box.isHorizontal()) { - var scaleMargin = { - left: totalLeftBoxesWidth, - right: totalRightBoxesWidth, - top: 0, - bottom: 0 - }; - - // Don't use min size here because of label rotation. When the labels are rotated, their rotation highly depends - // on the margin. Sometimes they need to increase in size slightly - box.update(box.options.fullWidth ? chartWidth : maxChartAreaWidth, chartHeight / 2, scaleMargin); - } else { - box.update(minBoxSize.minSize.width, maxChartAreaHeight); - } - } - } - - // Figure out how much margin is on the top and bottom of the vertical boxes - helpers.each(topBoxes, function(box) { - totalTopBoxesHeight += box.height; - }); - - helpers.each(bottomBoxes, function(box) { - totalBottomBoxesHeight += box.height; - }); - - // Let the left layout know the final margin - helpers.each(leftBoxes.concat(rightBoxes), finalFitVerticalBox); - - function finalFitVerticalBox(box) { - var minBoxSize = helpers.findNextWhere(minBoxSizes, function(minBoxSize) { - return minBoxSize.box === box; - }); - - var scaleMargin = { - left: 0, - right: 0, - top: totalTopBoxesHeight, - bottom: totalBottomBoxesHeight - }; - - if (minBoxSize) { - box.update(minBoxSize.minSize.width, maxChartAreaHeight, scaleMargin); - } - } - - // Recalculate because the size of each layout might have changed slightly due to the margins (label rotation for instance) - totalLeftBoxesWidth = xPadding; - totalRightBoxesWidth = xPadding; - totalTopBoxesHeight = yPadding; - totalBottomBoxesHeight = yPadding; - - helpers.each(leftBoxes, function(box) { - totalLeftBoxesWidth += box.width; - }); - - helpers.each(rightBoxes, function(box) { - totalRightBoxesWidth += box.width; - }); - - helpers.each(topBoxes, function(box) { - totalTopBoxesHeight += box.height; - }); - helpers.each(bottomBoxes, function(box) { - totalBottomBoxesHeight += box.height; - }); - - // Figure out if our chart area changed. This would occur if the dataset layout label rotation - // changed due to the application of the margins in step 6. Since we can only get bigger, this is safe to do - // without calling `fit` again - var newMaxChartAreaHeight = height - totalTopBoxesHeight - totalBottomBoxesHeight; - var newMaxChartAreaWidth = width - totalLeftBoxesWidth - totalRightBoxesWidth; - - if (newMaxChartAreaWidth !== maxChartAreaWidth || newMaxChartAreaHeight !== maxChartAreaHeight) { - helpers.each(leftBoxes, function(box) { - box.height = newMaxChartAreaHeight; - }); - - helpers.each(rightBoxes, function(box) { - box.height = newMaxChartAreaHeight; - }); - - helpers.each(topBoxes, function(box) { - if (!box.options.fullWidth) { - box.width = newMaxChartAreaWidth; - } - }); - - helpers.each(bottomBoxes, function(box) { - if (!box.options.fullWidth) { - box.width = newMaxChartAreaWidth; - } - }); - - maxChartAreaHeight = newMaxChartAreaHeight; - maxChartAreaWidth = newMaxChartAreaWidth; - } - - // Step 7 - Position the boxes - var left = xPadding; - var top = yPadding; - var right = 0; - var bottom = 0; - - helpers.each(leftBoxes.concat(topBoxes), placeBox); - - // Account for chart width and height - left += maxChartAreaWidth; - top += maxChartAreaHeight; - - helpers.each(rightBoxes, placeBox); - helpers.each(bottomBoxes, placeBox); - - function placeBox(box) { - if (box.isHorizontal()) { - box.left = box.options.fullWidth ? xPadding : totalLeftBoxesWidth; - box.right = box.options.fullWidth ? width - xPadding : totalLeftBoxesWidth + maxChartAreaWidth; - box.top = top; - box.bottom = top + box.height; - - // Move to next point - top = box.bottom; - - } else { - - box.left = left; - box.right = left + box.width; - box.top = totalTopBoxesHeight; - box.bottom = totalTopBoxesHeight + maxChartAreaHeight; - - // Move to next point - left = box.right; - } - } - - // Step 8 - chartInstance.chartArea = { - left: totalLeftBoxesWidth, - top: totalTopBoxesHeight, - right: totalLeftBoxesWidth + maxChartAreaWidth, - bottom: totalTopBoxesHeight + maxChartAreaHeight - }; - - // Step 9 - helpers.each(chartAreaBoxes, function(box) { - box.left = chartInstance.chartArea.left; - box.top = chartInstance.chartArea.top; - box.right = chartInstance.chartArea.right; - box.bottom = chartInstance.chartArea.bottom; - - box.update(maxChartAreaWidth, maxChartAreaHeight); - }); - } - }; -}; - },{}],28:[function(require,module,exports){ -"use strict"; +"use strict"; + +module.exports = function(Chart) { + + var helpers = Chart.helpers; + var noop = helpers.noop; + + Chart.defaults.global.legend = { + + display: true, + position: 'top', + fullWidth: true, // marks that this box should take the full width of the canvas (pushing down other boxes) + reverse: false, + + // a callback that will handle + onClick: function(e, legendItem) { + var index = legendItem.datasetIndex; + var ci = this.chart; + var meta = ci.getDatasetMeta(index); + + // See controller.isDatasetVisible comment + meta.hidden = meta.hidden === null? !ci.data.datasets[index].hidden : null; + + // We hid a dataset ... rerender the chart + ci.update(); + }, + + labels: { + boxWidth: 40, + padding: 10, + // Generates labels shown in the legend + // Valid properties to return: + // text : text to display + // fillStyle : fill of coloured box + // strokeStyle: stroke of coloured box + // hidden : if this legend item refers to a hidden item + // lineCap : cap style for line + // lineDash + // lineDashOffset : + // lineJoin : + // lineWidth : + generateLabels: function(chart) { + var data = chart.data; + return helpers.isArray(data.datasets) ? data.datasets.map(function(dataset, i) { + return { + text: dataset.label, + fillStyle: dataset.backgroundColor, + hidden: !chart.isDatasetVisible(i), + lineCap: dataset.borderCapStyle, + lineDash: dataset.borderDash, + lineDashOffset: dataset.borderDashOffset, + lineJoin: dataset.borderJoinStyle, + lineWidth: dataset.borderWidth, + strokeStyle: dataset.borderColor, + + // Below is extra data used for toggling the datasets + datasetIndex: i + }; + }, this) : []; + } + } + }; + + Chart.Legend = Chart.Element.extend({ + + initialize: function(config) { + helpers.extend(this, config); + + // Contains hit boxes for each dataset (in dataset order) + this.legendHitBoxes = []; + + // Are we in doughnut mode which has a different data type + this.doughnutMode = false; + }, + + // These methods are ordered by lifecyle. Utilities then follow. + // Any function defined here is inherited by all legend types. + // Any function can be extended by the legend type + + beforeUpdate: noop, + update: function(maxWidth, maxHeight, margins) { + + // Update Lifecycle - Probably don't want to ever extend or overwrite this function ;) + this.beforeUpdate(); + + // Absorb the master measurements + this.maxWidth = maxWidth; + this.maxHeight = maxHeight; + this.margins = margins; + + // Dimensions + this.beforeSetDimensions(); + this.setDimensions(); + this.afterSetDimensions(); + // Labels + this.beforeBuildLabels(); + this.buildLabels(); + this.afterBuildLabels(); + + // Fit + this.beforeFit(); + this.fit(); + this.afterFit(); + // + this.afterUpdate(); + + return this.minSize; + }, + afterUpdate: noop, + + // + + beforeSetDimensions: noop, + setDimensions: function() { + // Set the unconstrained dimension before label rotation + if (this.isHorizontal()) { + // Reset position before calculating rotation + this.width = this.maxWidth; + this.left = 0; + this.right = this.width; + } else { + this.height = this.maxHeight; + + // Reset position before calculating rotation + this.top = 0; + this.bottom = this.height; + } + + // Reset padding + this.paddingLeft = 0; + this.paddingTop = 0; + this.paddingRight = 0; + this.paddingBottom = 0; + + // Reset minSize + this.minSize = { + width: 0, + height: 0 + }; + }, + afterSetDimensions: noop, + + // + + beforeBuildLabels: noop, + buildLabels: function() { + this.legendItems = this.options.labels.generateLabels.call(this, this.chart); + if(this.options.reverse){ + this.legendItems.reverse(); + } + }, + afterBuildLabels: noop, + + // + + beforeFit: noop, + fit: function() { + var opts = this.options; + var labelOpts = opts.labels; + var display = opts.display; + + var ctx = this.ctx; + + var globalDefault = Chart.defaults.global, + itemOrDefault = helpers.getValueOrDefault, + fontSize = itemOrDefault(labelOpts.fontSize, globalDefault.defaultFontSize), + fontStyle = itemOrDefault(labelOpts.fontStyle, globalDefault.defaultFontStyle), + fontFamily = itemOrDefault(labelOpts.fontFamily, globalDefault.defaultFontFamily), + labelFont = helpers.fontString(fontSize, fontStyle, fontFamily); + + // Reset hit boxes + var hitboxes = this.legendHitBoxes = []; + + var minSize = this.minSize; + var isHorizontal = this.isHorizontal(); + + if (isHorizontal) { + minSize.width = this.maxWidth; // fill all the width + minSize.height = display ? 10 : 0; + } else { + minSize.width = display ? 10 : 0; + minSize.height = this.maxHeight; // fill all the height + } + + // Increase sizes here + if (display) { + if (isHorizontal) { + // Labels + + // Width of each line of legend boxes. Labels wrap onto multiple lines when there are too many to fit on one + var lineWidths = this.lineWidths = [0]; + var totalHeight = this.legendItems.length ? fontSize + (labelOpts.padding) : 0; + + ctx.textAlign = "left"; + ctx.textBaseline = 'top'; + ctx.font = labelFont; + + helpers.each(this.legendItems, function(legendItem, i) { + var width = labelOpts.boxWidth + (fontSize / 2) + ctx.measureText(legendItem.text).width; + if (lineWidths[lineWidths.length - 1] + width + labelOpts.padding >= this.width) { + totalHeight += fontSize + (labelOpts.padding); + lineWidths[lineWidths.length] = this.left; + } + + // Store the hitbox width and height here. Final position will be updated in `draw` + hitboxes[i] = { + left: 0, + top: 0, + width: width, + height: fontSize + }; + + lineWidths[lineWidths.length - 1] += width + labelOpts.padding; + }, this); + + minSize.height += totalHeight; + + } else { + // TODO vertical + } + } + + this.width = minSize.width; + this.height = minSize.height; + }, + afterFit: noop, + + // Shared Methods + isHorizontal: function() { + return this.options.position === "top" || this.options.position === "bottom"; + }, + + // Actualy draw the legend on the canvas + draw: function() { + var opts = this.options; + var labelOpts = opts.labels; + var globalDefault = Chart.defaults.global, + lineDefault = globalDefault.elements.line, + legendWidth = this.width, + lineWidths = this.lineWidths; + + if (opts.display) { + var ctx = this.ctx, + cursor = { + x: this.left + ((legendWidth - lineWidths[0]) / 2), + y: this.top + labelOpts.padding, + line: 0 + }, + itemOrDefault = helpers.getValueOrDefault, + fontColor = itemOrDefault(labelOpts.fontColor, globalDefault.defaultFontColor), + fontSize = itemOrDefault(labelOpts.fontSize, globalDefault.defaultFontSize), + fontStyle = itemOrDefault(labelOpts.fontStyle, globalDefault.defaultFontStyle), + fontFamily = itemOrDefault(labelOpts.fontFamily, globalDefault.defaultFontFamily), + labelFont = helpers.fontString(fontSize, fontStyle, fontFamily); + + // Horizontal + if (this.isHorizontal()) { + // Labels + ctx.textAlign = "left"; + ctx.textBaseline = 'top'; + ctx.lineWidth = 0.5; + ctx.strokeStyle = fontColor; // for strikethrough effect + ctx.fillStyle = fontColor; // render in correct colour + ctx.font = labelFont; + + var boxWidth = labelOpts.boxWidth, + hitboxes = this.legendHitBoxes; + + helpers.each(this.legendItems, function(legendItem, i) { + var textWidth = ctx.measureText(legendItem.text).width, + width = boxWidth + (fontSize / 2) + textWidth, + x = cursor.x, + y = cursor.y; + + if (x + width >= legendWidth) { + y = cursor.y += fontSize + (labelOpts.padding); + cursor.line++; + x = cursor.x = this.left + ((legendWidth - lineWidths[cursor.line]) / 2); + } + + // Set the ctx for the box + ctx.save(); + + ctx.fillStyle = itemOrDefault(legendItem.fillStyle, globalDefault.defaultColor); + ctx.lineCap = itemOrDefault(legendItem.lineCap, lineDefault.borderCapStyle); + ctx.lineDashOffset = itemOrDefault(legendItem.lineDashOffset, lineDefault.borderDashOffset); + ctx.lineJoin = itemOrDefault(legendItem.lineJoin, lineDefault.borderJoinStyle); + ctx.lineWidth = itemOrDefault(legendItem.lineWidth, lineDefault.borderWidth); + ctx.strokeStyle = itemOrDefault(legendItem.strokeStyle, globalDefault.defaultColor); + + if (ctx.setLineDash) { + // IE 9 and 10 do not support line dash + ctx.setLineDash(itemOrDefault(legendItem.lineDash, lineDefault.borderDash)); + } + + // Draw the box + ctx.strokeRect(x, y, boxWidth, fontSize); + ctx.fillRect(x, y, boxWidth, fontSize); + + ctx.restore(); + + hitboxes[i].left = x; + hitboxes[i].top = y; + + // Fill the actual label + ctx.fillText(legendItem.text, boxWidth + (fontSize / 2) + x, y); + + if (legendItem.hidden) { + // Strikethrough the text if hidden + ctx.beginPath(); + ctx.lineWidth = 2; + ctx.moveTo(boxWidth + (fontSize / 2) + x, y + (fontSize / 2)); + ctx.lineTo(boxWidth + (fontSize / 2) + x + textWidth, y + (fontSize / 2)); + ctx.stroke(); + } + + cursor.x += width + (labelOpts.padding); + }, this); + } else { + + } + } + }, + + // Handle an event + handleEvent: function(e) { + var position = helpers.getRelativePosition(e, this.chart.chart), + x = position.x, + y = position.y, + opts = this.options; + + if (x >= this.left && x <= this.right && y >= this.top && y <= this.bottom) { + // See if we are touching one of the dataset boxes + var lh = this.legendHitBoxes; + for (var i = 0; i < lh.length; ++i) { + var hitBox = lh[i]; + + if (x >= hitBox.left && x <= hitBox.left + hitBox.width && y >= hitBox.top && y <= hitBox.top + hitBox.height) { + // Touching an element + if (opts.onClick) { + opts.onClick.call(this, e, this.legendItems[i]); + } + break; + } + } + } + } + }); + +}; -module.exports = function(Chart) { - - var helpers = Chart.helpers; - - Chart.defaults.global.legend = { - - display: true, - position: 'top', - fullWidth: true, // marks that this box should take the full width of the canvas (pushing down other boxes) - reverse: false, - - // a callback that will handle - onClick: function(e, legendItem) { - var index = legendItem.datasetIndex; - var meta = this.chart.getDatasetMeta(index); - - // See controller.isDatasetVisible comment - meta.hidden = meta.hidden === null? !this.chart.data.datasets[index].hidden : null; - - // We hid a dataset ... rerender the chart - this.chart.update(); - }, - - labels: { - boxWidth: 40, - padding: 10, - // Generates labels shown in the legend - // Valid properties to return: - // text : text to display - // fillStyle : fill of coloured box - // strokeStyle: stroke of coloured box - // hidden : if this legend item refers to a hidden item - // lineCap : cap style for line - // lineDash - // lineDashOffset : - // lineJoin : - // lineWidth : - generateLabels: function(chart) { - var data = chart.data; - return helpers.isArray(data.datasets) ? data.datasets.map(function(dataset, i) { - return { - text: dataset.label, - fillStyle: dataset.backgroundColor, - hidden: !chart.isDatasetVisible(i), - lineCap: dataset.borderCapStyle, - lineDash: dataset.borderDash, - lineDashOffset: dataset.borderDashOffset, - lineJoin: dataset.borderJoinStyle, - lineWidth: dataset.borderWidth, - strokeStyle: dataset.borderColor, - - // Below is extra data used for toggling the datasets - datasetIndex: i - }; - }, this) : []; - } - } - }; - - Chart.Legend = Chart.Element.extend({ - - initialize: function(config) { - helpers.extend(this, config); - - // Contains hit boxes for each dataset (in dataset order) - this.legendHitBoxes = []; - - // Are we in doughnut mode which has a different data type - this.doughnutMode = false; - }, - - // These methods are ordered by lifecyle. Utilities then follow. - // Any function defined here is inherited by all legend types. - // Any function can be extended by the legend type - - beforeUpdate: helpers.noop, - update: function(maxWidth, maxHeight, margins) { - - // Update Lifecycle - Probably don't want to ever extend or overwrite this function ;) - this.beforeUpdate(); - - // Absorb the master measurements - this.maxWidth = maxWidth; - this.maxHeight = maxHeight; - this.margins = margins; - - // Dimensions - this.beforeSetDimensions(); - this.setDimensions(); - this.afterSetDimensions(); - // Labels - this.beforeBuildLabels(); - this.buildLabels(); - this.afterBuildLabels(); - - // Fit - this.beforeFit(); - this.fit(); - this.afterFit(); - // - this.afterUpdate(); - - return this.minSize; - }, - afterUpdate: helpers.noop, - - // - - beforeSetDimensions: helpers.noop, - setDimensions: function() { - // Set the unconstrained dimension before label rotation - if (this.isHorizontal()) { - // Reset position before calculating rotation - this.width = this.maxWidth; - this.left = 0; - this.right = this.width; - } else { - this.height = this.maxHeight; - - // Reset position before calculating rotation - this.top = 0; - this.bottom = this.height; - } - - // Reset padding - this.paddingLeft = 0; - this.paddingTop = 0; - this.paddingRight = 0; - this.paddingBottom = 0; - - // Reset minSize - this.minSize = { - width: 0, - height: 0 - }; - }, - afterSetDimensions: helpers.noop, - - // - - beforeBuildLabels: helpers.noop, - buildLabels: function() { - this.legendItems = this.options.labels.generateLabels.call(this, this.chart); - if(this.options.reverse){ - this.legendItems.reverse(); - } - }, - afterBuildLabels: helpers.noop, - - // - - beforeFit: helpers.noop, - fit: function() { - - var ctx = this.ctx; - var fontSize = helpers.getValueOrDefault(this.options.labels.fontSize, Chart.defaults.global.defaultFontSize); - var fontStyle = helpers.getValueOrDefault(this.options.labels.fontStyle, Chart.defaults.global.defaultFontStyle); - var fontFamily = helpers.getValueOrDefault(this.options.labels.fontFamily, Chart.defaults.global.defaultFontFamily); - var labelFont = helpers.fontString(fontSize, fontStyle, fontFamily); - - // Reset hit boxes - this.legendHitBoxes = []; - - // Width - if (this.isHorizontal()) { - this.minSize.width = this.maxWidth; // fill all the width - } else { - this.minSize.width = this.options.display ? 10 : 0; - } - - // height - if (this.isHorizontal()) { - this.minSize.height = this.options.display ? 10 : 0; - } else { - this.minSize.height = this.maxHeight; // fill all the height - } - - // Increase sizes here - if (this.options.display) { - if (this.isHorizontal()) { - // Labels - - // Width of each line of legend boxes. Labels wrap onto multiple lines when there are too many to fit on one - this.lineWidths = [0]; - var totalHeight = this.legendItems.length ? fontSize + (this.options.labels.padding) : 0; - - ctx.textAlign = "left"; - ctx.textBaseline = 'top'; - ctx.font = labelFont; - - helpers.each(this.legendItems, function(legendItem, i) { - var width = this.options.labels.boxWidth + (fontSize / 2) + ctx.measureText(legendItem.text).width; - if (this.lineWidths[this.lineWidths.length - 1] + width + this.options.labels.padding >= this.width) { - totalHeight += fontSize + (this.options.labels.padding); - this.lineWidths[this.lineWidths.length] = this.left; - } - - // Store the hitbox width and height here. Final position will be updated in `draw` - this.legendHitBoxes[i] = { - left: 0, - top: 0, - width: width, - height: fontSize - }; - - this.lineWidths[this.lineWidths.length - 1] += width + this.options.labels.padding; - }, this); - - this.minSize.height += totalHeight; - - } else { - // TODO vertical - } - } - - this.width = this.minSize.width; - this.height = this.minSize.height; - - }, - afterFit: helpers.noop, - - // Shared Methods - isHorizontal: function() { - return this.options.position === "top" || this.options.position === "bottom"; - }, - - // Actualy draw the legend on the canvas - draw: function() { - if (this.options.display) { - var ctx = this.ctx; - var cursor = { - x: this.left + ((this.width - this.lineWidths[0]) / 2), - y: this.top + this.options.labels.padding, - line: 0 - }; - - var fontColor = helpers.getValueOrDefault(this.options.labels.fontColor, Chart.defaults.global.defaultFontColor); - var fontSize = helpers.getValueOrDefault(this.options.labels.fontSize, Chart.defaults.global.defaultFontSize); - var fontStyle = helpers.getValueOrDefault(this.options.labels.fontStyle, Chart.defaults.global.defaultFontStyle); - var fontFamily = helpers.getValueOrDefault(this.options.labels.fontFamily, Chart.defaults.global.defaultFontFamily); - var labelFont = helpers.fontString(fontSize, fontStyle, fontFamily); - - // Horizontal - if (this.isHorizontal()) { - // Labels - ctx.textAlign = "left"; - ctx.textBaseline = 'top'; - ctx.lineWidth = 0.5; - ctx.strokeStyle = fontColor; // for strikethrough effect - ctx.fillStyle = fontColor; // render in correct colour - ctx.font = labelFont; - - helpers.each(this.legendItems, function(legendItem, i) { - var textWidth = ctx.measureText(legendItem.text).width; - var width = this.options.labels.boxWidth + (fontSize / 2) + textWidth; - - if (cursor.x + width >= this.width) { - cursor.y += fontSize + (this.options.labels.padding); - cursor.line++; - cursor.x = this.left + ((this.width - this.lineWidths[cursor.line]) / 2); - } - - // Set the ctx for the box - ctx.save(); - - var itemOrDefault = function(item, defaulVal) { - return item !== undefined ? item : defaulVal; - }; - - ctx.fillStyle = itemOrDefault(legendItem.fillStyle, Chart.defaults.global.defaultColor); - ctx.lineCap = itemOrDefault(legendItem.lineCap, Chart.defaults.global.elements.line.borderCapStyle); - ctx.lineDashOffset = itemOrDefault(legendItem.lineDashOffset, Chart.defaults.global.elements.line.borderDashOffset); - ctx.lineJoin = itemOrDefault(legendItem.lineJoin, Chart.defaults.global.elements.line.borderJoinStyle); - ctx.lineWidth = itemOrDefault(legendItem.lineWidth, Chart.defaults.global.elements.line.borderWidth); - ctx.strokeStyle = itemOrDefault(legendItem.strokeStyle, Chart.defaults.global.defaultColor); - - if (ctx.setLineDash) { - // IE 9 and 10 do not support line dash - ctx.setLineDash(itemOrDefault(legendItem.lineDash, Chart.defaults.global.elements.line.borderDash)); - } - - // Draw the box - ctx.strokeRect(cursor.x, cursor.y, this.options.labels.boxWidth, fontSize); - ctx.fillRect(cursor.x, cursor.y, this.options.labels.boxWidth, fontSize); - - ctx.restore(); - - this.legendHitBoxes[i].left = cursor.x; - this.legendHitBoxes[i].top = cursor.y; - - // Fill the actual label - ctx.fillText(legendItem.text, this.options.labels.boxWidth + (fontSize / 2) + cursor.x, cursor.y); - - if (legendItem.hidden) { - // Strikethrough the text if hidden - ctx.beginPath(); - ctx.lineWidth = 2; - ctx.moveTo(this.options.labels.boxWidth + (fontSize / 2) + cursor.x, cursor.y + (fontSize / 2)); - ctx.lineTo(this.options.labels.boxWidth + (fontSize / 2) + cursor.x + textWidth, cursor.y + (fontSize / 2)); - ctx.stroke(); - } - - cursor.x += width + (this.options.labels.padding); - }, this); - } else { - - } - } - }, - - // Handle an event - handleEvent: function(e) { - var position = helpers.getRelativePosition(e, this.chart.chart); - - if (position.x >= this.left && position.x <= this.right && position.y >= this.top && position.y <= this.bottom) { - // See if we are touching one of the dataset boxes - for (var i = 0; i < this.legendHitBoxes.length; ++i) { - var hitBox = this.legendHitBoxes[i]; - - if (position.x >= hitBox.left && position.x <= hitBox.left + hitBox.width && position.y >= hitBox.top && position.y <= hitBox.top + hitBox.height) { - // Touching an element - if (this.options.onClick) { - this.options.onClick.call(this, e, this.legendItems[i]); - } - break; - } - } - } - } - }); - -}; - },{}],29:[function(require,module,exports){ -"use strict"; +"use strict"; + +module.exports = function(Chart) { + var helpers = Chart.helpers; + + // Plugins are stored here + Chart.plugins = []; + Chart.pluginService = { + // Register a new plugin + register: function(plugin) { + var p = Chart.plugins; + if (p.indexOf(plugin) === -1) { + p.push(plugin); + } + }, + + // Remove a registered plugin + remove: function(plugin) { + var p = Chart.plugins; + var idx = p.indexOf(plugin); + if (idx !== -1) { + p.splice(idx, 1); + } + }, + + // Iterate over all plugins + notifyPlugins: function(method, args, scope) { + helpers.each(Chart.plugins, function(plugin) { + if (plugin[method] && typeof plugin[method] === 'function') { + plugin[method].apply(scope, args); + } + }, scope); + } + }; + + var noop = helpers.noop; + Chart.PluginBase = Chart.Element.extend({ + // Plugin methods. All functions are passed the chart instance + + // Called at start of chart init + beforeInit: noop, + + // Called at end of chart init + afterInit: noop, + + // Called at start of update + beforeUpdate: noop, + + // Called at end of update + afterUpdate: noop, + + // Called at start of draw + beforeDraw: noop, + + // Called at end of draw + afterDraw: noop, + + // Called during destroy + destroy: noop, + }); +}; -module.exports = function(Chart) { - var helpers = Chart.helpers; - - // Plugins are stored here - Chart.plugins = []; - Chart.pluginService = { - // Register a new plugin - register: function(plugin) { - if (Chart.plugins.indexOf(plugin) === -1) { - Chart.plugins.push(plugin); - } - }, - - // Remove a registered plugin - remove: function(plugin) { - var idx = Chart.plugins.indexOf(plugin); - if (idx !== -1) { - Chart.plugins.splice(idx, 1); - } - }, - - // Iterate over all plugins - notifyPlugins: function(method, args, scope) { - helpers.each(Chart.plugins, function(plugin) { - if (plugin[method] && typeof plugin[method] === 'function') { - plugin[method].apply(scope, args); - } - }, scope); - } - }; - - Chart.PluginBase = Chart.Element.extend({ - // Plugin methods. All functions are passed the chart instance - - // Called at start of chart init - beforeInit: helpers.noop, - - // Called at end of chart init - afterInit: helpers.noop, - - // Called at start of update - beforeUpdate: helpers.noop, - - // Called at end of update - afterUpdate: helpers.noop, - - // Called at start of draw - beforeDraw: helpers.noop, - - // Called at end of draw - afterDraw: helpers.noop, - - // Called during destroy - destroy: helpers.noop, - }); -}; - },{}],30:[function(require,module,exports){ -"use strict"; +"use strict"; + +module.exports = function(Chart) { + + var helpers = Chart.helpers; + + Chart.defaults.scale = { + display: true, + position: "left", + + // grid line settings + gridLines: { + display: true, + color: "rgba(0, 0, 0, 0.1)", + lineWidth: 1, + drawOnChartArea: true, + drawTicks: true, + tickMarkLength: 10, + zeroLineWidth: 1, + zeroLineColor: "rgba(0,0,0,0.25)", + offsetGridLines: false + }, + + // scale label + scaleLabel: { + // actual label + labelString: '', + + // display property + display: false + }, + + // label settings + ticks: { + beginAtZero: false, + minRotation: 0, + maxRotation: 50, + mirror: false, + padding: 10, + reverse: false, + display: true, + autoSkip: true, + autoSkipPadding: 0, + labelOffset: 0, + callback: function(value) { + return '' + value; + } + } + }; + + Chart.Scale = Chart.Element.extend({ + + // These methods are ordered by lifecyle. Utilities then follow. + // Any function defined here is inherited by all scale types. + // Any function can be extended by the scale type + + beforeUpdate: function() { + helpers.callCallback(this.options.beforeUpdate, [this]); + }, + update: function(maxWidth, maxHeight, margins) { + + // Update Lifecycle - Probably don't want to ever extend or overwrite this function ;) + this.beforeUpdate(); + + // Absorb the master measurements + this.maxWidth = maxWidth; + this.maxHeight = maxHeight; + this.margins = helpers.extend({ + left: 0, + right: 0, + top: 0, + bottom: 0 + }, margins); + + // Dimensions + this.beforeSetDimensions(); + this.setDimensions(); + this.afterSetDimensions(); + + // Data min/max + this.beforeDataLimits(); + this.determineDataLimits(); + this.afterDataLimits(); + + // Ticks + this.beforeBuildTicks(); + this.buildTicks(); + this.afterBuildTicks(); + + this.beforeTickToLabelConversion(); + this.convertTicksToLabels(); + this.afterTickToLabelConversion(); + + // Tick Rotation + this.beforeCalculateTickRotation(); + this.calculateTickRotation(); + this.afterCalculateTickRotation(); + // Fit + this.beforeFit(); + this.fit(); + this.afterFit(); + // + this.afterUpdate(); + + return this.minSize; + + }, + afterUpdate: function() { + helpers.callCallback(this.options.afterUpdate, [this]); + }, + + // + + beforeSetDimensions: function() { + helpers.callCallback(this.options.beforeSetDimensions, [this]); + }, + setDimensions: function() { + // Set the unconstrained dimension before label rotation + if (this.isHorizontal()) { + // Reset position before calculating rotation + this.width = this.maxWidth; + this.left = 0; + this.right = this.width; + } else { + this.height = this.maxHeight; + + // Reset position before calculating rotation + this.top = 0; + this.bottom = this.height; + } + + // Reset padding + this.paddingLeft = 0; + this.paddingTop = 0; + this.paddingRight = 0; + this.paddingBottom = 0; + }, + afterSetDimensions: function() { + helpers.callCallback(this.options.afterSetDimensions, [this]); + }, + + // Data limits + beforeDataLimits: function() { + helpers.callCallback(this.options.beforeDataLimits, [this]); + }, + determineDataLimits: helpers.noop, + afterDataLimits: function() { + helpers.callCallback(this.options.afterDataLimits, [this]); + }, + + // + beforeBuildTicks: function() { + helpers.callCallback(this.options.beforeBuildTicks, [this]); + }, + buildTicks: helpers.noop, + afterBuildTicks: function() { + helpers.callCallback(this.options.afterBuildTicks, [this]); + }, + + beforeTickToLabelConversion: function() { + helpers.callCallback(this.options.beforeTickToLabelConversion, [this]); + }, + convertTicksToLabels: function() { + // Convert ticks to strings + this.ticks = this.ticks.map(function(numericalTick, index, ticks) { + if (this.options.ticks.userCallback) { + return this.options.ticks.userCallback(numericalTick, index, ticks); + } + return this.options.ticks.callback(numericalTick, index, ticks); + }, + this); + }, + afterTickToLabelConversion: function() { + helpers.callCallback(this.options.afterTickToLabelConversion, [this]); + }, + + // + + beforeCalculateTickRotation: function() { + helpers.callCallback(this.options.beforeCalculateTickRotation, [this]); + }, + calculateTickRotation: function() { + //Get the width of each grid by calculating the difference + //between x offsets between 0 and 1. + var tickFontSize = helpers.getValueOrDefault(this.options.ticks.fontSize, Chart.defaults.global.defaultFontSize); + var tickFontStyle = helpers.getValueOrDefault(this.options.ticks.fontStyle, Chart.defaults.global.defaultFontStyle); + var tickFontFamily = helpers.getValueOrDefault(this.options.ticks.fontFamily, Chart.defaults.global.defaultFontFamily); + var tickLabelFont = helpers.fontString(tickFontSize, tickFontStyle, tickFontFamily); + this.ctx.font = tickLabelFont; + + var firstWidth = this.ctx.measureText(this.ticks[0]).width; + var lastWidth = this.ctx.measureText(this.ticks[this.ticks.length - 1]).width; + var firstRotated; + + this.labelRotation = this.options.ticks.minRotation || 0; + this.paddingRight = 0; + this.paddingLeft = 0; + + if (this.options.display) { + if (this.isHorizontal()) { + this.paddingRight = lastWidth / 2 + 3; + this.paddingLeft = firstWidth / 2 + 3; + + if (!this.longestTextCache) { + this.longestTextCache = {}; + } + var originalLabelWidth = helpers.longestText(this.ctx, tickLabelFont, this.ticks, this.longestTextCache); + var labelWidth = originalLabelWidth; + var cosRotation; + var sinRotation; + + // Allow 3 pixels x2 padding either side for label readability + // only the index matters for a dataset scale, but we want a consistent interface between scales + var tickWidth = this.getPixelForTick(1) - this.getPixelForTick(0) - 6; + + //Max label rotation can be set or default to 90 - also act as a loop counter + while (labelWidth > tickWidth && this.labelRotation < this.options.ticks.maxRotation) { + cosRotation = Math.cos(helpers.toRadians(this.labelRotation)); + sinRotation = Math.sin(helpers.toRadians(this.labelRotation)); + + firstRotated = cosRotation * firstWidth; + + // We're right aligning the text now. + if (firstRotated + tickFontSize / 2 > this.yLabelWidth) { + this.paddingLeft = firstRotated + tickFontSize / 2; + } + + this.paddingRight = tickFontSize / 2; + + if (sinRotation * originalLabelWidth > this.maxHeight) { + // go back one step + this.labelRotation--; + break; + } + + this.labelRotation++; + labelWidth = cosRotation * originalLabelWidth; + } + } + } + + if (this.margins) { + this.paddingLeft = Math.max(this.paddingLeft - this.margins.left, 0); + this.paddingRight = Math.max(this.paddingRight - this.margins.right, 0); + } + }, + afterCalculateTickRotation: function() { + helpers.callCallback(this.options.afterCalculateTickRotation, [this]); + }, + + // + + beforeFit: function() { + helpers.callCallback(this.options.beforeFit, [this]); + }, + fit: function() { + // Reset + var minSize = this.minSize = { + width: 0, + height: 0 + }; + + var opts = this.options; + var tickOpts = opts.ticks; + var scaleLabelOpts = opts.scaleLabel; + var globalOpts = Chart.defaults.global; + var display = opts.display; + var isHorizontal = this.isHorizontal(); + + var tickFontSize = helpers.getValueOrDefault(tickOpts.fontSize, globalOpts.defaultFontSize); + var tickFontStyle = helpers.getValueOrDefault(tickOpts.fontStyle, globalOpts.defaultFontStyle); + var tickFontFamily = helpers.getValueOrDefault(tickOpts.fontFamily, globalOpts.defaultFontFamily); + var tickLabelFont = helpers.fontString(tickFontSize, tickFontStyle, tickFontFamily); + + var scaleLabelFontSize = helpers.getValueOrDefault(scaleLabelOpts.fontSize, globalOpts.defaultFontSize); + var scaleLabelFontStyle = helpers.getValueOrDefault(scaleLabelOpts.fontStyle, globalOpts.defaultFontStyle); + var scaleLabelFontFamily = helpers.getValueOrDefault(scaleLabelOpts.fontFamily, globalOpts.defaultFontFamily); + var scaleLabelFont = helpers.fontString(scaleLabelFontSize, scaleLabelFontStyle, scaleLabelFontFamily); + + var tickMarkLength = opts.gridLines.tickMarkLength; + + // Width + if (isHorizontal) { + // subtract the margins to line up with the chartArea if we are a full width scale + minSize.width = this.isFullWidth() ? this.maxWidth - this.margins.left - this.margins.right : this.maxWidth; + } else { + minSize.width = display ? tickMarkLength : 0; + } + + // height + if (isHorizontal) { + minSize.height = display ? tickMarkLength : 0; + } else { + minSize.height = this.maxHeight; // fill all the height + } + + // Are we showing a title for the scale? + if (scaleLabelOpts.display && display) { + if (isHorizontal) { + minSize.height += (scaleLabelFontSize * 1.5); + } else { + minSize.width += (scaleLabelFontSize * 1.5); + } + } + + if (tickOpts.display && display) { + // Don't bother fitting the ticks if we are not showing them + if (!this.longestTextCache) { + this.longestTextCache = {}; + } + + var largestTextWidth = helpers.longestText(this.ctx, tickLabelFont, this.ticks, this.longestTextCache); + + if (isHorizontal) { + // A horizontal axis is more constrained by the height. + this.longestLabelWidth = largestTextWidth; + + // TODO - improve this calculation + var labelHeight = (Math.sin(helpers.toRadians(this.labelRotation)) * this.longestLabelWidth) + 1.5 * tickFontSize; + + minSize.height = Math.min(this.maxHeight, minSize.height + labelHeight); + this.ctx.font = tickLabelFont; + + var firstLabelWidth = this.ctx.measureText(this.ticks[0]).width; + var lastLabelWidth = this.ctx.measureText(this.ticks[this.ticks.length - 1]).width; + + // Ensure that our ticks are always inside the canvas. When rotated, ticks are right aligned which means that the right padding is dominated + // by the font height + var cosRotation = Math.cos(helpers.toRadians(this.labelRotation)); + var sinRotation = Math.sin(helpers.toRadians(this.labelRotation)); + this.paddingLeft = this.labelRotation !== 0 ? (cosRotation * firstLabelWidth) + 3 : firstLabelWidth / 2 + 3; // add 3 px to move away from canvas edges + this.paddingRight = this.labelRotation !== 0 ? (sinRotation * (tickFontSize / 2)) + 3 : lastLabelWidth / 2 + 3; // when rotated + } else { + // A vertical axis is more constrained by the width. Labels are the dominant factor here, so get that length first + var maxLabelWidth = this.maxWidth - minSize.width; + + // Account for padding + var mirror = tickOpts.mirror; + if (!mirror) { + largestTextWidth += this.options.ticks.padding; + } else { + // If mirrored text is on the inside so don't expand + largestTextWidth = 0; + } + + if (largestTextWidth < maxLabelWidth) { + // We don't need all the room + minSize.width += largestTextWidth; + } else { + // Expand to max size + minSize.width = this.maxWidth; + } + + this.paddingTop = tickFontSize / 2; + this.paddingBottom = tickFontSize / 2; + } + } + + if (this.margins) { + this.paddingLeft = Math.max(this.paddingLeft - this.margins.left, 0); + this.paddingTop = Math.max(this.paddingTop - this.margins.top, 0); + this.paddingRight = Math.max(this.paddingRight - this.margins.right, 0); + this.paddingBottom = Math.max(this.paddingBottom - this.margins.bottom, 0); + } + + this.width = minSize.width; + this.height = minSize.height; + + }, + afterFit: function() { + helpers.callCallback(this.options.afterFit, [this]); + }, + + // Shared Methods + isHorizontal: function() { + return this.options.position === "top" || this.options.position === "bottom"; + }, + isFullWidth: function() { + return (this.options.fullWidth); + }, + + // Get the correct value. NaN bad inputs, If the value type is object get the x or y based on whether we are horizontal or not + getRightValue: function getRightValue(rawValue) { + // Null and undefined values first + if (rawValue === null || typeof(rawValue) === 'undefined') { + return NaN; + } + // isNaN(object) returns true, so make sure NaN is checking for a number + if (typeof(rawValue) === 'number' && isNaN(rawValue)) { + return NaN; + } + // If it is in fact an object, dive in one more level + if (typeof(rawValue) === "object") { + if (rawValue instanceof Date) { + return rawValue; + } else { + return getRightValue(this.isHorizontal() ? rawValue.x : rawValue.y); + } + } + + // Value is good, return it + return rawValue; + }, + + // Used to get the value to display in the tooltip for the data at the given index + // function getLabelForIndex(index, datasetIndex) + getLabelForIndex: helpers.noop, + + // Used to get data value locations. Value can either be an index or a numerical value + getPixelForValue: helpers.noop, + + // Used to get the data value from a given pixel. This is the inverse of getPixelForValue + getValueForPixel: helpers.noop, + + // Used for tick location, should + getPixelForTick: function(index, includeOffset) { + if (this.isHorizontal()) { + var innerWidth = this.width - (this.paddingLeft + this.paddingRight); + var tickWidth = innerWidth / Math.max((this.ticks.length - ((this.options.gridLines.offsetGridLines) ? 0 : 1)), 1); + var pixel = (tickWidth * index) + this.paddingLeft; + + if (includeOffset) { + pixel += tickWidth / 2; + } + + var finalVal = this.left + Math.round(pixel); + finalVal += this.isFullWidth() ? this.margins.left : 0; + return finalVal; + } else { + var innerHeight = this.height - (this.paddingTop + this.paddingBottom); + return this.top + (index * (innerHeight / (this.ticks.length - 1))); + } + }, + + // Utility for getting the pixel location of a percentage of scale + getPixelForDecimal: function(decimal /*, includeOffset*/ ) { + if (this.isHorizontal()) { + var innerWidth = this.width - (this.paddingLeft + this.paddingRight); + var valueOffset = (innerWidth * decimal) + this.paddingLeft; + + var finalVal = this.left + Math.round(valueOffset); + finalVal += this.isFullWidth() ? this.margins.left : 0; + return finalVal; + } else { + return this.top + (decimal * this.height); + } + }, + + // Actualy draw the scale on the canvas + // @param {rectangle} chartArea : the area of the chart to draw full grid lines on + draw: function(chartArea) { + if (this.options.display) { + + var setContextLineSettings; + var isRotated = this.labelRotation !== 0; + var skipRatio; + var scaleLabelX; + var scaleLabelY; + var useAutoskipper = this.options.ticks.autoSkip; + + + // figure out the maximum number of gridlines to show + var maxTicks; + + if (this.options.ticks.maxTicksLimit) { + maxTicks = this.options.ticks.maxTicksLimit; + } + + var tickFontColor = helpers.getValueOrDefault(this.options.ticks.fontColor, Chart.defaults.global.defaultFontColor); + var tickFontSize = helpers.getValueOrDefault(this.options.ticks.fontSize, Chart.defaults.global.defaultFontSize); + var tickFontStyle = helpers.getValueOrDefault(this.options.ticks.fontStyle, Chart.defaults.global.defaultFontStyle); + var tickFontFamily = helpers.getValueOrDefault(this.options.ticks.fontFamily, Chart.defaults.global.defaultFontFamily); + var tickLabelFont = helpers.fontString(tickFontSize, tickFontStyle, tickFontFamily); + var tl = this.options.gridLines.tickMarkLength; + + var scaleLabelFontColor = helpers.getValueOrDefault(this.options.scaleLabel.fontColor, Chart.defaults.global.defaultFontColor); + var scaleLabelFontSize = helpers.getValueOrDefault(this.options.scaleLabel.fontSize, Chart.defaults.global.defaultFontSize); + var scaleLabelFontStyle = helpers.getValueOrDefault(this.options.scaleLabel.fontStyle, Chart.defaults.global.defaultFontStyle); + var scaleLabelFontFamily = helpers.getValueOrDefault(this.options.scaleLabel.fontFamily, Chart.defaults.global.defaultFontFamily); + var scaleLabelFont = helpers.fontString(scaleLabelFontSize, scaleLabelFontStyle, scaleLabelFontFamily); + + var cosRotation = Math.cos(helpers.toRadians(this.labelRotation)); + var sinRotation = Math.sin(helpers.toRadians(this.labelRotation)); + var longestRotatedLabel = this.longestLabelWidth * cosRotation; + var rotatedLabelHeight = tickFontSize * sinRotation; + + // Make sure we draw text in the correct color and font + this.ctx.fillStyle = tickFontColor; + + if (this.isHorizontal()) { + setContextLineSettings = true; + var yTickStart = this.options.position === "bottom" ? this.top : this.bottom - tl; + var yTickEnd = this.options.position === "bottom" ? this.top + tl : this.bottom; + skipRatio = false; + + if (((longestRotatedLabel / 2) + this.options.ticks.autoSkipPadding) * this.ticks.length > (this.width - (this.paddingLeft + this.paddingRight))) { + skipRatio = 1 + Math.floor((((longestRotatedLabel / 2) + this.options.ticks.autoSkipPadding) * this.ticks.length) / (this.width - (this.paddingLeft + this.paddingRight))); + } + + // if they defined a max number of ticks, + // increase skipRatio until that number is met + if (maxTicks && this.ticks.length > maxTicks) { + while (!skipRatio || this.ticks.length / (skipRatio || 1) > maxTicks) { + if (!skipRatio) { + skipRatio = 1; + } + skipRatio += 1; + } + } + + if (!useAutoskipper) { + skipRatio = false; + } + + helpers.each(this.ticks, function(label, index) { + // Blank ticks + var isLastTick = this.ticks.length === index + 1; + + // Since we always show the last tick,we need may need to hide the last shown one before + var shouldSkip = (skipRatio > 1 && index % skipRatio > 0) || (index % skipRatio === 0 && index + skipRatio > this.ticks.length); + if (shouldSkip && !isLastTick || (label === undefined || label === null)) { + return; + } + var xLineValue = this.getPixelForTick(index); // xvalues for grid lines + var xLabelValue = this.getPixelForTick(index, this.options.gridLines.offsetGridLines); // x values for ticks (need to consider offsetLabel option) + + if (this.options.gridLines.display) { + if (index === (typeof this.zeroLineIndex !== 'undefined' ? this.zeroLineIndex : 0)) { + // Draw the first index specially + this.ctx.lineWidth = this.options.gridLines.zeroLineWidth; + this.ctx.strokeStyle = this.options.gridLines.zeroLineColor; + setContextLineSettings = true; // reset next time + } else if (setContextLineSettings) { + this.ctx.lineWidth = this.options.gridLines.lineWidth; + this.ctx.strokeStyle = this.options.gridLines.color; + setContextLineSettings = false; + } + + xLineValue += helpers.aliasPixel(this.ctx.lineWidth); + + // Draw the label area + this.ctx.beginPath(); + + if (this.options.gridLines.drawTicks) { + this.ctx.moveTo(xLineValue, yTickStart); + this.ctx.lineTo(xLineValue, yTickEnd); + } + + // Draw the chart area + if (this.options.gridLines.drawOnChartArea) { + this.ctx.moveTo(xLineValue, chartArea.top); + this.ctx.lineTo(xLineValue, chartArea.bottom); + } + + // Need to stroke in the loop because we are potentially changing line widths & colours + this.ctx.stroke(); + } + + if (this.options.ticks.display) { + this.ctx.save(); + this.ctx.translate(xLabelValue + this.options.ticks.labelOffset, (isRotated) ? this.top + 12 : this.options.position === "top" ? this.bottom - tl : this.top + tl); + this.ctx.rotate(helpers.toRadians(this.labelRotation) * -1); + this.ctx.font = tickLabelFont; + this.ctx.textAlign = (isRotated) ? "right" : "center"; + this.ctx.textBaseline = (isRotated) ? "middle" : this.options.position === "top" ? "bottom" : "top"; + this.ctx.fillText(label, 0, 0); + this.ctx.restore(); + } + }, this); + + if (this.options.scaleLabel.display) { + // Draw the scale label + this.ctx.textAlign = "center"; + this.ctx.textBaseline = 'middle'; + this.ctx.fillStyle = scaleLabelFontColor; // render in correct colour + this.ctx.font = scaleLabelFont; + + scaleLabelX = this.left + ((this.right - this.left) / 2); // midpoint of the width + scaleLabelY = this.options.position === 'bottom' ? this.bottom - (scaleLabelFontSize / 2) : this.top + (scaleLabelFontSize / 2); + + this.ctx.fillText(this.options.scaleLabel.labelString, scaleLabelX, scaleLabelY); + } + + } else { + setContextLineSettings = true; + var xTickStart = this.options.position === "right" ? this.left : this.right - 5; + var xTickEnd = this.options.position === "right" ? this.left + 5 : this.right; + + helpers.each(this.ticks, function(label, index) { + // If the callback returned a null or undefined value, do not draw this line + if (label === undefined || label === null) { + return; + } + + var yLineValue = this.getPixelForTick(index); // xvalues for grid lines + + if (this.options.gridLines.display) { + if (index === (typeof this.zeroLineIndex !== 'undefined' ? this.zeroLineIndex : 0)) { + // Draw the first index specially + this.ctx.lineWidth = this.options.gridLines.zeroLineWidth; + this.ctx.strokeStyle = this.options.gridLines.zeroLineColor; + setContextLineSettings = true; // reset next time + } else if (setContextLineSettings) { + this.ctx.lineWidth = this.options.gridLines.lineWidth; + this.ctx.strokeStyle = this.options.gridLines.color; + setContextLineSettings = false; + } + + yLineValue += helpers.aliasPixel(this.ctx.lineWidth); + + // Draw the label area + this.ctx.beginPath(); + + if (this.options.gridLines.drawTicks) { + this.ctx.moveTo(xTickStart, yLineValue); + this.ctx.lineTo(xTickEnd, yLineValue); + } + + // Draw the chart area + if (this.options.gridLines.drawOnChartArea) { + this.ctx.moveTo(chartArea.left, yLineValue); + this.ctx.lineTo(chartArea.right, yLineValue); + } + + // Need to stroke in the loop because we are potentially changing line widths & colours + this.ctx.stroke(); + } + + if (this.options.ticks.display) { + var xLabelValue; + var yLabelValue = this.getPixelForTick(index, this.options.gridLines.offsetGridLines); // x values for ticks (need to consider offsetLabel option) + + this.ctx.save(); + + if (this.options.position === "left") { + if (this.options.ticks.mirror) { + xLabelValue = this.right + this.options.ticks.padding; + this.ctx.textAlign = "left"; + } else { + xLabelValue = this.right - this.options.ticks.padding; + this.ctx.textAlign = "right"; + } + } else { + // right side + if (this.options.ticks.mirror) { + xLabelValue = this.left - this.options.ticks.padding; + this.ctx.textAlign = "right"; + } else { + xLabelValue = this.left + this.options.ticks.padding; + this.ctx.textAlign = "left"; + } + } + + this.ctx.translate(xLabelValue, yLabelValue + this.options.ticks.labelOffset); + this.ctx.rotate(helpers.toRadians(this.labelRotation) * -1); + this.ctx.font = tickLabelFont; + this.ctx.textBaseline = "middle"; + this.ctx.fillText(label, 0, 0); + this.ctx.restore(); + } + }, this); + + if (this.options.scaleLabel.display) { + // Draw the scale label + scaleLabelX = this.options.position === 'left' ? this.left + (scaleLabelFontSize / 2) : this.right - (scaleLabelFontSize / 2); + scaleLabelY = this.top + ((this.bottom - this.top) / 2); + var rotation = this.options.position === 'left' ? -0.5 * Math.PI : 0.5 * Math.PI; + + this.ctx.save(); + this.ctx.translate(scaleLabelX, scaleLabelY); + this.ctx.rotate(rotation); + this.ctx.textAlign = "center"; + this.ctx.fillStyle =scaleLabelFontColor; // render in correct colour + this.ctx.font = scaleLabelFont; + this.ctx.textBaseline = 'middle'; + this.ctx.fillText(this.options.scaleLabel.labelString, 0, 0); + this.ctx.restore(); + } + } + + // Draw the line at the edge of the axis + this.ctx.lineWidth = this.options.gridLines.lineWidth; + this.ctx.strokeStyle = this.options.gridLines.color; + var x1 = this.left, + x2 = this.right, + y1 = this.top, + y2 = this.bottom; + + if (this.isHorizontal()) { + y1 = y2 = this.options.position === 'top' ? this.bottom : this.top; + y1 += helpers.aliasPixel(this.ctx.lineWidth); + y2 += helpers.aliasPixel(this.ctx.lineWidth); + } else { + x1 = x2 = this.options.position === 'left' ? this.right : this.left; + x1 += helpers.aliasPixel(this.ctx.lineWidth); + x2 += helpers.aliasPixel(this.ctx.lineWidth); + } + + this.ctx.beginPath(); + this.ctx.moveTo(x1, y1); + this.ctx.lineTo(x2, y2); + this.ctx.stroke(); + } + } + }); +}; -module.exports = function(Chart) { - - var helpers = Chart.helpers; - - Chart.defaults.scale = { - display: true, - position: "left", - - // grid line settings - gridLines: { - display: true, - color: "rgba(0, 0, 0, 0.1)", - lineWidth: 1, - drawOnChartArea: true, - drawTicks: true, - tickMarkLength: 10, - zeroLineWidth: 1, - zeroLineColor: "rgba(0,0,0,0.25)", - offsetGridLines: false - }, - - // scale label - scaleLabel: { - // actual label - labelString: '', - - // display property - display: false - }, - - // label settings - ticks: { - beginAtZero: false, - maxRotation: 50, - mirror: false, - padding: 10, - reverse: false, - display: true, - autoSkip: true, - autoSkipPadding: 0, - callback: function(value) { - return '' + value; - } - } - }; - - Chart.Scale = Chart.Element.extend({ - - // These methods are ordered by lifecyle. Utilities then follow. - // Any function defined here is inherited by all scale types. - // Any function can be extended by the scale type - - beforeUpdate: function() { - helpers.callCallback(this.options.beforeUpdate, [this]); - }, - update: function(maxWidth, maxHeight, margins) { - - // Update Lifecycle - Probably don't want to ever extend or overwrite this function ;) - this.beforeUpdate(); - - // Absorb the master measurements - this.maxWidth = maxWidth; - this.maxHeight = maxHeight; - this.margins = helpers.extend({ - left: 0, - right: 0, - top: 0, - bottom: 0 - }, margins); - - // Dimensions - this.beforeSetDimensions(); - this.setDimensions(); - this.afterSetDimensions(); - - // Data min/max - this.beforeDataLimits(); - this.determineDataLimits(); - this.afterDataLimits(); - - // Ticks - this.beforeBuildTicks(); - this.buildTicks(); - this.afterBuildTicks(); - - this.beforeTickToLabelConversion(); - this.convertTicksToLabels(); - this.afterTickToLabelConversion(); - - // Tick Rotation - this.beforeCalculateTickRotation(); - this.calculateTickRotation(); - this.afterCalculateTickRotation(); - // Fit - this.beforeFit(); - this.fit(); - this.afterFit(); - // - this.afterUpdate(); - - return this.minSize; - - }, - afterUpdate: function() { - helpers.callCallback(this.options.afterUpdate, [this]); - }, - - // - - beforeSetDimensions: function() { - helpers.callCallback(this.options.beforeSetDimensions, [this]); - }, - setDimensions: function() { - // Set the unconstrained dimension before label rotation - if (this.isHorizontal()) { - // Reset position before calculating rotation - this.width = this.maxWidth; - this.left = 0; - this.right = this.width; - } else { - this.height = this.maxHeight; - - // Reset position before calculating rotation - this.top = 0; - this.bottom = this.height; - } - - // Reset padding - this.paddingLeft = 0; - this.paddingTop = 0; - this.paddingRight = 0; - this.paddingBottom = 0; - }, - afterSetDimensions: function() { - helpers.callCallback(this.options.afterSetDimensions, [this]); - }, - - // Data limits - beforeDataLimits: function() { - helpers.callCallback(this.options.beforeDataLimits, [this]); - }, - determineDataLimits: helpers.noop, - afterDataLimits: function() { - helpers.callCallback(this.options.afterDataLimits, [this]); - }, - - // - beforeBuildTicks: function() { - helpers.callCallback(this.options.beforeBuildTicks, [this]); - }, - buildTicks: helpers.noop, - afterBuildTicks: function() { - helpers.callCallback(this.options.afterBuildTicks, [this]); - }, - - beforeTickToLabelConversion: function() { - helpers.callCallback(this.options.beforeTickToLabelConversion, [this]); - }, - convertTicksToLabels: function() { - // Convert ticks to strings - this.ticks = this.ticks.map(function(numericalTick, index, ticks) { - if (this.options.ticks.userCallback) { - return this.options.ticks.userCallback(numericalTick, index, ticks); - } - return this.options.ticks.callback(numericalTick, index, ticks); - }, - this); - }, - afterTickToLabelConversion: function() { - helpers.callCallback(this.options.afterTickToLabelConversion, [this]); - }, - - // - - beforeCalculateTickRotation: function() { - helpers.callCallback(this.options.beforeCalculateTickRotation, [this]); - }, - calculateTickRotation: function() { - //Get the width of each grid by calculating the difference - //between x offsets between 0 and 1. - var tickFontSize = helpers.getValueOrDefault(this.options.ticks.fontSize, Chart.defaults.global.defaultFontSize); - var tickFontStyle = helpers.getValueOrDefault(this.options.ticks.fontStyle, Chart.defaults.global.defaultFontStyle); - var tickFontFamily = helpers.getValueOrDefault(this.options.ticks.fontFamily, Chart.defaults.global.defaultFontFamily); - var tickLabelFont = helpers.fontString(tickFontSize, tickFontStyle, tickFontFamily); - this.ctx.font = tickLabelFont; - - var firstWidth = this.ctx.measureText(this.ticks[0]).width; - var lastWidth = this.ctx.measureText(this.ticks[this.ticks.length - 1]).width; - var firstRotated; - - this.labelRotation = 0; - this.paddingRight = 0; - this.paddingLeft = 0; - - if (this.options.display) { - if (this.isHorizontal()) { - this.paddingRight = lastWidth / 2 + 3; - this.paddingLeft = firstWidth / 2 + 3; - - if (!this.longestTextCache) { - this.longestTextCache = {}; - } - var originalLabelWidth = helpers.longestText(this.ctx, tickLabelFont, this.ticks, this.longestTextCache); - var labelWidth = originalLabelWidth; - var cosRotation; - var sinRotation; - - // Allow 3 pixels x2 padding either side for label readability - // only the index matters for a dataset scale, but we want a consistent interface between scales - var tickWidth = this.getPixelForTick(1) - this.getPixelForTick(0) - 6; - - //Max label rotation can be set or default to 90 - also act as a loop counter - while (labelWidth > tickWidth && this.labelRotation < this.options.ticks.maxRotation) { - cosRotation = Math.cos(helpers.toRadians(this.labelRotation)); - sinRotation = Math.sin(helpers.toRadians(this.labelRotation)); - - firstRotated = cosRotation * firstWidth; - - // We're right aligning the text now. - if (firstRotated + tickFontSize / 2 > this.yLabelWidth) { - this.paddingLeft = firstRotated + tickFontSize / 2; - } - - this.paddingRight = tickFontSize / 2; - - if (sinRotation * originalLabelWidth > this.maxHeight) { - // go back one step - this.labelRotation--; - break; - } - - this.labelRotation++; - labelWidth = cosRotation * originalLabelWidth; - } - } - } - - if (this.margins) { - this.paddingLeft = Math.max(this.paddingLeft - this.margins.left, 0); - this.paddingRight = Math.max(this.paddingRight - this.margins.right, 0); - } - }, - afterCalculateTickRotation: function() { - helpers.callCallback(this.options.afterCalculateTickRotation, [this]); - }, - - // - - beforeFit: function() { - helpers.callCallback(this.options.beforeFit, [this]); - }, - fit: function() { - - this.minSize = { - width: 0, - height: 0 - }; - - var tickFontSize = helpers.getValueOrDefault(this.options.ticks.fontSize, Chart.defaults.global.defaultFontSize); - var tickFontStyle = helpers.getValueOrDefault(this.options.ticks.fontStyle, Chart.defaults.global.defaultFontStyle); - var tickFontFamily = helpers.getValueOrDefault(this.options.ticks.fontFamily, Chart.defaults.global.defaultFontFamily); - var tickLabelFont = helpers.fontString(tickFontSize, tickFontStyle, tickFontFamily); - - var scaleLabelFontSize = helpers.getValueOrDefault(this.options.scaleLabel.fontSize, Chart.defaults.global.defaultFontSize); - var scaleLabelFontStyle = helpers.getValueOrDefault(this.options.scaleLabel.fontStyle, Chart.defaults.global.defaultFontStyle); - var scaleLabelFontFamily = helpers.getValueOrDefault(this.options.scaleLabel.fontFamily, Chart.defaults.global.defaultFontFamily); - var scaleLabelFont = helpers.fontString(scaleLabelFontSize, scaleLabelFontStyle, scaleLabelFontFamily); - - // Width - if (this.isHorizontal()) { - // subtract the margins to line up with the chartArea if we are a full width scale - this.minSize.width = this.isFullWidth() ? this.maxWidth - this.margins.left - this.margins.right : this.maxWidth; - } else { - this.minSize.width = this.options.gridLines.tickMarkLength; - } - - // height - if (this.isHorizontal()) { - this.minSize.height = this.options.gridLines.tickMarkLength; - } else { - this.minSize.height = this.maxHeight; // fill all the height - } - - // Are we showing a title for the scale? - if (this.options.scaleLabel.display) { - if (this.isHorizontal()) { - this.minSize.height += (scaleLabelFontSize * 1.5); - } else { - this.minSize.width += (scaleLabelFontSize * 1.5); - } - } - - if (this.options.ticks.display && this.options.display) { - // Don't bother fitting the ticks if we are not showing them - if (!this.longestTextCache) { - this.longestTextCache = {}; - } - - var largestTextWidth = helpers.longestText(this.ctx, tickLabelFont, this.ticks, this.longestTextCache); - - if (this.isHorizontal()) { - // A horizontal axis is more constrained by the height. - this.longestLabelWidth = largestTextWidth; - - // TODO - improve this calculation - var labelHeight = (Math.sin(helpers.toRadians(this.labelRotation)) * this.longestLabelWidth) + 1.5 * tickFontSize; - - this.minSize.height = Math.min(this.maxHeight, this.minSize.height + labelHeight); - this.ctx.font = tickLabelFont; - - var firstLabelWidth = this.ctx.measureText(this.ticks[0]).width; - var lastLabelWidth = this.ctx.measureText(this.ticks[this.ticks.length - 1]).width; - - // Ensure that our ticks are always inside the canvas. When rotated, ticks are right aligned which means that the right padding is dominated - // by the font height - var cosRotation = Math.cos(helpers.toRadians(this.labelRotation)); - var sinRotation = Math.sin(helpers.toRadians(this.labelRotation)); - this.paddingLeft = this.labelRotation !== 0 ? (cosRotation * firstLabelWidth) + 3 : firstLabelWidth / 2 + 3; // add 3 px to move away from canvas edges - this.paddingRight = this.labelRotation !== 0 ? (sinRotation * (tickFontSize / 2)) + 3 : lastLabelWidth / 2 + 3; // when rotated - } else { - // A vertical axis is more constrained by the width. Labels are the dominant factor here, so get that length first - var maxLabelWidth = this.maxWidth - this.minSize.width; - - // Account for padding - if (!this.options.ticks.mirror) { - largestTextWidth += this.options.ticks.padding; - } - - if (largestTextWidth < maxLabelWidth) { - // We don't need all the room - this.minSize.width += largestTextWidth; - } else { - // Expand to max size - this.minSize.width = this.maxWidth; - } - - this.paddingTop = tickFontSize / 2; - this.paddingBottom = tickFontSize / 2; - } - } - - if (this.margins) { - this.paddingLeft = Math.max(this.paddingLeft - this.margins.left, 0); - this.paddingTop = Math.max(this.paddingTop - this.margins.top, 0); - this.paddingRight = Math.max(this.paddingRight - this.margins.right, 0); - this.paddingBottom = Math.max(this.paddingBottom - this.margins.bottom, 0); - } - - this.width = this.minSize.width; - this.height = this.minSize.height; - - }, - afterFit: function() { - helpers.callCallback(this.options.afterFit, [this]); - }, - - // Shared Methods - isHorizontal: function() { - return this.options.position === "top" || this.options.position === "bottom"; - }, - isFullWidth: function() { - return (this.options.fullWidth); - }, - - // Get the correct value. NaN bad inputs, If the value type is object get the x or y based on whether we are horizontal or not - getRightValue: function getRightValue(rawValue) { - // Null and undefined values first - if (rawValue === null || typeof(rawValue) === 'undefined') { - return NaN; - } - // isNaN(object) returns true, so make sure NaN is checking for a number - if (typeof(rawValue) === 'number' && isNaN(rawValue)) { - return NaN; - } - // If it is in fact an object, dive in one more level - if (typeof(rawValue) === "object") { - if (rawValue instanceof Date) { - return rawValue; - } else { - return getRightValue(this.isHorizontal() ? rawValue.x : rawValue.y); - } - } - - // Value is good, return it - return rawValue; - }, - - // Used to get the value to display in the tooltip for the data at the given index - // function getLabelForIndex(index, datasetIndex) - getLabelForIndex: helpers.noop, - - // Used to get data value locations. Value can either be an index or a numerical value - getPixelForValue: helpers.noop, - - // Used to get the data value from a given pixel. This is the inverse of getPixelForValue - getValueForPixel: helpers.noop, - - // Used for tick location, should - getPixelForTick: function(index, includeOffset) { - if (this.isHorizontal()) { - var innerWidth = this.width - (this.paddingLeft + this.paddingRight); - var tickWidth = innerWidth / Math.max((this.ticks.length - ((this.options.gridLines.offsetGridLines) ? 0 : 1)), 1); - var pixel = (tickWidth * index) + this.paddingLeft; - - if (includeOffset) { - pixel += tickWidth / 2; - } - - var finalVal = this.left + Math.round(pixel); - finalVal += this.isFullWidth() ? this.margins.left : 0; - return finalVal; - } else { - var innerHeight = this.height - (this.paddingTop + this.paddingBottom); - return this.top + (index * (innerHeight / (this.ticks.length - 1))); - } - }, - - // Utility for getting the pixel location of a percentage of scale - getPixelForDecimal: function(decimal /*, includeOffset*/ ) { - if (this.isHorizontal()) { - var innerWidth = this.width - (this.paddingLeft + this.paddingRight); - var valueOffset = (innerWidth * decimal) + this.paddingLeft; - - var finalVal = this.left + Math.round(valueOffset); - finalVal += this.isFullWidth() ? this.margins.left : 0; - return finalVal; - } else { - return this.top + (decimal * this.height); - } - }, - - // Actualy draw the scale on the canvas - // @param {rectangle} chartArea : the area of the chart to draw full grid lines on - draw: function(chartArea) { - if (this.options.display) { - - var setContextLineSettings; - var isRotated = this.labelRotation !== 0; - var skipRatio; - var scaleLabelX; - var scaleLabelY; - var useAutoskipper = this.options.ticks.autoSkip; - - - // figure out the maximum number of gridlines to show - var maxTicks; - - if (this.options.ticks.maxTicksLimit) { - maxTicks = this.options.ticks.maxTicksLimit; - } - - var tickFontColor = helpers.getValueOrDefault(this.options.ticks.fontColor, Chart.defaults.global.defaultFontColor); - var tickFontSize = helpers.getValueOrDefault(this.options.ticks.fontSize, Chart.defaults.global.defaultFontSize); - var tickFontStyle = helpers.getValueOrDefault(this.options.ticks.fontStyle, Chart.defaults.global.defaultFontStyle); - var tickFontFamily = helpers.getValueOrDefault(this.options.ticks.fontFamily, Chart.defaults.global.defaultFontFamily); - var tickLabelFont = helpers.fontString(tickFontSize, tickFontStyle, tickFontFamily); - var tl = this.options.gridLines.tickMarkLength; - - var scaleLabelFontColor = helpers.getValueOrDefault(this.options.scaleLabel.fontColor, Chart.defaults.global.defaultFontColor); - var scaleLabelFontSize = helpers.getValueOrDefault(this.options.scaleLabel.fontSize, Chart.defaults.global.defaultFontSize); - var scaleLabelFontStyle = helpers.getValueOrDefault(this.options.scaleLabel.fontStyle, Chart.defaults.global.defaultFontStyle); - var scaleLabelFontFamily = helpers.getValueOrDefault(this.options.scaleLabel.fontFamily, Chart.defaults.global.defaultFontFamily); - var scaleLabelFont = helpers.fontString(scaleLabelFontSize, scaleLabelFontStyle, scaleLabelFontFamily); - - var cosRotation = Math.cos(helpers.toRadians(this.labelRotation)); - var sinRotation = Math.sin(helpers.toRadians(this.labelRotation)); - var longestRotatedLabel = this.longestLabelWidth * cosRotation; - var rotatedLabelHeight = tickFontSize * sinRotation; - - // Make sure we draw text in the correct color and font - this.ctx.fillStyle = tickFontColor; - - if (this.isHorizontal()) { - setContextLineSettings = true; - var yTickStart = this.options.position === "bottom" ? this.top : this.bottom - tl; - var yTickEnd = this.options.position === "bottom" ? this.top + tl : this.bottom; - skipRatio = false; - - if (((longestRotatedLabel / 2) + this.options.ticks.autoSkipPadding) * this.ticks.length > (this.width - (this.paddingLeft + this.paddingRight))) { - skipRatio = 1 + Math.floor((((longestRotatedLabel / 2) + this.options.ticks.autoSkipPadding) * this.ticks.length) / (this.width - (this.paddingLeft + this.paddingRight))); - } - - // if they defined a max number of ticks, - // increase skipRatio until that number is met - if (maxTicks && this.ticks.length > maxTicks) { - while (!skipRatio || this.ticks.length / (skipRatio || 1) > maxTicks) { - if (!skipRatio) { - skipRatio = 1; - } - skipRatio += 1; - } - } - - if (!useAutoskipper) { - skipRatio = false; - } - - helpers.each(this.ticks, function(label, index) { - // Blank ticks - var isLastTick = this.ticks.length === index + 1; - - // Since we always show the last tick,we need may need to hide the last shown one before - var shouldSkip = (skipRatio > 1 && index % skipRatio > 0) || (index % skipRatio === 0 && index + skipRatio > this.ticks.length); - if (shouldSkip && !isLastTick || (label === undefined || label === null)) { - return; - } - var xLineValue = this.getPixelForTick(index); // xvalues for grid lines - var xLabelValue = this.getPixelForTick(index, this.options.gridLines.offsetGridLines); // x values for ticks (need to consider offsetLabel option) - - if (this.options.gridLines.display) { - if (index === (typeof this.zeroLineIndex !== 'undefined' ? this.zeroLineIndex : 0)) { - // Draw the first index specially - this.ctx.lineWidth = this.options.gridLines.zeroLineWidth; - this.ctx.strokeStyle = this.options.gridLines.zeroLineColor; - setContextLineSettings = true; // reset next time - } else if (setContextLineSettings) { - this.ctx.lineWidth = this.options.gridLines.lineWidth; - this.ctx.strokeStyle = this.options.gridLines.color; - setContextLineSettings = false; - } - - xLineValue += helpers.aliasPixel(this.ctx.lineWidth); - - // Draw the label area - this.ctx.beginPath(); - - if (this.options.gridLines.drawTicks) { - this.ctx.moveTo(xLineValue, yTickStart); - this.ctx.lineTo(xLineValue, yTickEnd); - } - - // Draw the chart area - if (this.options.gridLines.drawOnChartArea) { - this.ctx.moveTo(xLineValue, chartArea.top); - this.ctx.lineTo(xLineValue, chartArea.bottom); - } - - // Need to stroke in the loop because we are potentially changing line widths & colours - this.ctx.stroke(); - } - - if (this.options.ticks.display) { - this.ctx.save(); - this.ctx.translate(xLabelValue, (isRotated) ? this.top + 12 : this.options.position === "top" ? this.bottom - tl : this.top + tl); - this.ctx.rotate(helpers.toRadians(this.labelRotation) * -1); - this.ctx.font = tickLabelFont; - this.ctx.textAlign = (isRotated) ? "right" : "center"; - this.ctx.textBaseline = (isRotated) ? "middle" : this.options.position === "top" ? "bottom" : "top"; - this.ctx.fillText(label, 0, 0); - this.ctx.restore(); - } - }, this); - - if (this.options.scaleLabel.display) { - // Draw the scale label - this.ctx.textAlign = "center"; - this.ctx.textBaseline = 'middle'; - this.ctx.fillStyle = scaleLabelFontColor; // render in correct colour - this.ctx.font = scaleLabelFont; - - scaleLabelX = this.left + ((this.right - this.left) / 2); // midpoint of the width - scaleLabelY = this.options.position === 'bottom' ? this.bottom - (scaleLabelFontSize / 2) : this.top + (scaleLabelFontSize / 2); - - this.ctx.fillText(this.options.scaleLabel.labelString, scaleLabelX, scaleLabelY); - } - - } else { - setContextLineSettings = true; - var xTickStart = this.options.position === "right" ? this.left : this.right - 5; - var xTickEnd = this.options.position === "right" ? this.left + 5 : this.right; - - helpers.each(this.ticks, function(label, index) { - // If the callback returned a null or undefined value, do not draw this line - if (label === undefined || label === null) { - return; - } - - var yLineValue = this.getPixelForTick(index); // xvalues for grid lines - - if (this.options.gridLines.display) { - if (index === (typeof this.zeroLineIndex !== 'undefined' ? this.zeroLineIndex : 0)) { - // Draw the first index specially - this.ctx.lineWidth = this.options.gridLines.zeroLineWidth; - this.ctx.strokeStyle = this.options.gridLines.zeroLineColor; - setContextLineSettings = true; // reset next time - } else if (setContextLineSettings) { - this.ctx.lineWidth = this.options.gridLines.lineWidth; - this.ctx.strokeStyle = this.options.gridLines.color; - setContextLineSettings = false; - } - - yLineValue += helpers.aliasPixel(this.ctx.lineWidth); - - // Draw the label area - this.ctx.beginPath(); - - if (this.options.gridLines.drawTicks) { - this.ctx.moveTo(xTickStart, yLineValue); - this.ctx.lineTo(xTickEnd, yLineValue); - } - - // Draw the chart area - if (this.options.gridLines.drawOnChartArea) { - this.ctx.moveTo(chartArea.left, yLineValue); - this.ctx.lineTo(chartArea.right, yLineValue); - } - - // Need to stroke in the loop because we are potentially changing line widths & colours - this.ctx.stroke(); - } - - if (this.options.ticks.display) { - var xLabelValue; - var yLabelValue = this.getPixelForTick(index, this.options.gridLines.offsetGridLines); // x values for ticks (need to consider offsetLabel option) - - this.ctx.save(); - - if (this.options.position === "left") { - if (this.options.ticks.mirror) { - xLabelValue = this.right + this.options.ticks.padding; - this.ctx.textAlign = "left"; - } else { - xLabelValue = this.right - this.options.ticks.padding; - this.ctx.textAlign = "right"; - } - } else { - // right side - if (this.options.ticks.mirror) { - xLabelValue = this.left - this.options.ticks.padding; - this.ctx.textAlign = "right"; - } else { - xLabelValue = this.left + this.options.ticks.padding; - this.ctx.textAlign = "left"; - } - } - - this.ctx.translate(xLabelValue, yLabelValue); - this.ctx.rotate(helpers.toRadians(this.labelRotation) * -1); - this.ctx.font = tickLabelFont; - this.ctx.textBaseline = "middle"; - this.ctx.fillText(label, 0, 0); - this.ctx.restore(); - } - }, this); - - if (this.options.scaleLabel.display) { - // Draw the scale label - scaleLabelX = this.options.position === 'left' ? this.left + (scaleLabelFontSize / 2) : this.right - (scaleLabelFontSize / 2); - scaleLabelY = this.top + ((this.bottom - this.top) / 2); - var rotation = this.options.position === 'left' ? -0.5 * Math.PI : 0.5 * Math.PI; - - this.ctx.save(); - this.ctx.translate(scaleLabelX, scaleLabelY); - this.ctx.rotate(rotation); - this.ctx.textAlign = "center"; - this.ctx.fillStyle =scaleLabelFontColor; // render in correct colour - this.ctx.font = scaleLabelFont; - this.ctx.textBaseline = 'middle'; - this.ctx.fillText(this.options.scaleLabel.labelString, 0, 0); - this.ctx.restore(); - } - } - - // Draw the line at the edge of the axis - this.ctx.lineWidth = this.options.gridLines.lineWidth; - this.ctx.strokeStyle = this.options.gridLines.color; - var x1 = this.left, - x2 = this.right, - y1 = this.top, - y2 = this.bottom; - - if (this.isHorizontal()) { - y1 = y2 = this.options.position === 'top' ? this.bottom : this.top; - y1 += helpers.aliasPixel(this.ctx.lineWidth); - y2 += helpers.aliasPixel(this.ctx.lineWidth); - } else { - x1 = x2 = this.options.position === 'left' ? this.right : this.left; - x1 += helpers.aliasPixel(this.ctx.lineWidth); - x2 += helpers.aliasPixel(this.ctx.lineWidth); - } - - this.ctx.beginPath(); - this.ctx.moveTo(x1, y1); - this.ctx.lineTo(x2, y2); - this.ctx.stroke(); - } - } - }); -}; - },{}],31:[function(require,module,exports){ -"use strict"; - -module.exports = function(Chart) { - - var helpers = Chart.helpers; - - Chart.scaleService = { - // Scale registration object. Extensions can register new scale types (such as log or DB scales) and then - // use the new chart options to grab the correct scale - constructors: {}, - // Use a registration function so that we can move to an ES6 map when we no longer need to support - // old browsers - - // Scale config defaults - defaults: {}, - registerScaleType: function(type, scaleConstructor, defaults) { - this.constructors[type] = scaleConstructor; - this.defaults[type] = helpers.clone(defaults); - }, - getScaleConstructor: function(type) { - return this.constructors.hasOwnProperty(type) ? this.constructors[type] : undefined; - }, - getScaleDefaults: function(type) { - // Return the scale defaults merged with the global settings so that we always use the latest ones - return this.defaults.hasOwnProperty(type) ? helpers.scaleMerge(Chart.defaults.scale, this.defaults[type]) : {}; - }, - addScalesToLayout: function(chartInstance) { - // Adds each scale to the chart.boxes array to be sized accordingly - helpers.each(chartInstance.scales, function(scale) { - Chart.layoutService.addBox(chartInstance, scale); - }); - } - }; +"use strict"; + +module.exports = function(Chart) { + + var helpers = Chart.helpers; + + Chart.scaleService = { + // Scale registration object. Extensions can register new scale types (such as log or DB scales) and then + // use the new chart options to grab the correct scale + constructors: {}, + // Use a registration function so that we can move to an ES6 map when we no longer need to support + // old browsers + + // Scale config defaults + defaults: {}, + registerScaleType: function(type, scaleConstructor, defaults) { + this.constructors[type] = scaleConstructor; + this.defaults[type] = helpers.clone(defaults); + }, + getScaleConstructor: function(type) { + return this.constructors.hasOwnProperty(type) ? this.constructors[type] : undefined; + }, + getScaleDefaults: function(type) { + // Return the scale defaults merged with the global settings so that we always use the latest ones + return this.defaults.hasOwnProperty(type) ? helpers.scaleMerge(Chart.defaults.scale, this.defaults[type]) : {}; + }, + updateScaleDefaults: function(type, additions) { + var defaults = this.defaults; + if (defaults.hasOwnProperty(type)) { + defaults[type] = helpers.extend(defaults[type], additions); + } + }, + addScalesToLayout: function(chartInstance) { + // Adds each scale to the chart.boxes array to be sized accordingly + helpers.each(chartInstance.scales, function(scale) { + Chart.layoutService.addBox(chartInstance, scale); + }); + } + }; }; },{}],32:[function(require,module,exports){ -"use strict"; - -module.exports = function(Chart) { - - var helpers = Chart.helpers; - - Chart.defaults.global.title = { - display: false, - position: 'top', - fullWidth: true, // marks that this box should take the full width of the canvas (pushing down other boxes) - - fontStyle: 'bold', - padding: 10, - - // actual title - text: '' - }; - - Chart.Title = Chart.Element.extend({ - - initialize: function(config) { - helpers.extend(this, config); - this.options = helpers.configMerge(Chart.defaults.global.title, config.options); - - // Contains hit boxes for each dataset (in dataset order) - this.legendHitBoxes = []; - }, - - // These methods are ordered by lifecyle. Utilities then follow. - - beforeUpdate: helpers.noop, - update: function(maxWidth, maxHeight, margins) { - - // Update Lifecycle - Probably don't want to ever extend or overwrite this function ;) - this.beforeUpdate(); - - // Absorb the master measurements - this.maxWidth = maxWidth; - this.maxHeight = maxHeight; - this.margins = margins; - - // Dimensions - this.beforeSetDimensions(); - this.setDimensions(); - this.afterSetDimensions(); - // Labels - this.beforeBuildLabels(); - this.buildLabels(); - this.afterBuildLabels(); - - // Fit - this.beforeFit(); - this.fit(); - this.afterFit(); - // - this.afterUpdate(); - - return this.minSize; - - }, - afterUpdate: helpers.noop, - - // - - beforeSetDimensions: helpers.noop, - setDimensions: function() { - // Set the unconstrained dimension before label rotation - if (this.isHorizontal()) { - // Reset position before calculating rotation - this.width = this.maxWidth; - this.left = 0; - this.right = this.width; - } else { - this.height = this.maxHeight; - - // Reset position before calculating rotation - this.top = 0; - this.bottom = this.height; - } - - // Reset padding - this.paddingLeft = 0; - this.paddingTop = 0; - this.paddingRight = 0; - this.paddingBottom = 0; - - // Reset minSize - this.minSize = { - width: 0, - height: 0 - }; - }, - afterSetDimensions: helpers.noop, - - // - - beforeBuildLabels: helpers.noop, - buildLabels: helpers.noop, - afterBuildLabels: helpers.noop, - - // - - beforeFit: helpers.noop, - fit: function() { - - var ctx = this.ctx; - var fontSize = helpers.getValueOrDefault(this.options.fontSize, Chart.defaults.global.defaultFontSize); - var fontStyle = helpers.getValueOrDefault(this.options.fontStyle, Chart.defaults.global.defaultFontStyle); - var fontFamily = helpers.getValueOrDefault(this.options.fontFamily, Chart.defaults.global.defaultFontFamily); - var titleFont = helpers.fontString(fontSize, fontStyle, fontFamily); - - // Width - if (this.isHorizontal()) { - this.minSize.width = this.maxWidth; // fill all the width - } else { - this.minSize.width = 0; - } - - // height - if (this.isHorizontal()) { - this.minSize.height = 0; - } else { - this.minSize.height = this.maxHeight; // fill all the height - } - - // Increase sizes here - if (this.isHorizontal()) { - - // Title - if (this.options.display) { - this.minSize.height += fontSize + (this.options.padding * 2); - } - } else { - if (this.options.display) { - this.minSize.width += fontSize + (this.options.padding * 2); - } - } - - this.width = this.minSize.width; - this.height = this.minSize.height; - - }, - afterFit: helpers.noop, - - // Shared Methods - isHorizontal: function() { - return this.options.position === "top" || this.options.position === "bottom"; - }, - - // Actualy draw the title block on the canvas - draw: function() { - if (this.options.display) { - var ctx = this.ctx; - var titleX, titleY; - - var fontColor = helpers.getValueOrDefault(this.options.fontColor, Chart.defaults.global.defaultFontColor); - var fontSize = helpers.getValueOrDefault(this.options.fontSize, Chart.defaults.global.defaultFontSize); - var fontStyle = helpers.getValueOrDefault(this.options.fontStyle, Chart.defaults.global.defaultFontStyle); - var fontFamily = helpers.getValueOrDefault(this.options.fontFamily, Chart.defaults.global.defaultFontFamily); - var titleFont = helpers.fontString(fontSize, fontStyle, fontFamily); - - ctx.fillStyle = fontColor; // render in correct colour - ctx.font = titleFont; - - // Horizontal - if (this.isHorizontal()) { - // Title - ctx.textAlign = "center"; - ctx.textBaseline = 'middle'; - - titleX = this.left + ((this.right - this.left) / 2); // midpoint of the width - titleY = this.top + ((this.bottom - this.top) / 2); // midpoint of the height - - ctx.fillText(this.options.text, titleX, titleY); - } else { - - // Title - titleX = this.options.position === 'left' ? this.left + (fontSize / 2) : this.right - (fontSize / 2); - titleY = this.top + ((this.bottom - this.top) / 2); - var rotation = this.options.position === 'left' ? -0.5 * Math.PI : 0.5 * Math.PI; - - ctx.save(); - ctx.translate(titleX, titleY); - ctx.rotate(rotation); - ctx.textAlign = "center"; - ctx.textBaseline = 'middle'; - ctx.fillText(this.options.text, 0, 0); - ctx.restore(); - } - } - } - }); +"use strict"; + +module.exports = function(Chart) { + + var helpers = Chart.helpers; + + Chart.defaults.global.title = { + display: false, + position: 'top', + fullWidth: true, // marks that this box should take the full width of the canvas (pushing down other boxes) + + fontStyle: 'bold', + padding: 10, + + // actual title + text: '' + }; + + var noop = helpers.noop; + Chart.Title = Chart.Element.extend({ + + initialize: function(config) { + helpers.extend(this, config); + this.options = helpers.configMerge(Chart.defaults.global.title, config.options); + + // Contains hit boxes for each dataset (in dataset order) + this.legendHitBoxes = []; + }, + + // These methods are ordered by lifecyle. Utilities then follow. + + beforeUpdate: noop, + update: function(maxWidth, maxHeight, margins) { + + // Update Lifecycle - Probably don't want to ever extend or overwrite this function ;) + this.beforeUpdate(); + + // Absorb the master measurements + this.maxWidth = maxWidth; + this.maxHeight = maxHeight; + this.margins = margins; + + // Dimensions + this.beforeSetDimensions(); + this.setDimensions(); + this.afterSetDimensions(); + // Labels + this.beforeBuildLabels(); + this.buildLabels(); + this.afterBuildLabels(); + + // Fit + this.beforeFit(); + this.fit(); + this.afterFit(); + // + this.afterUpdate(); + + return this.minSize; + + }, + afterUpdate: noop, + + // + + beforeSetDimensions: noop, + setDimensions: function() { + // Set the unconstrained dimension before label rotation + if (this.isHorizontal()) { + // Reset position before calculating rotation + this.width = this.maxWidth; + this.left = 0; + this.right = this.width; + } else { + this.height = this.maxHeight; + + // Reset position before calculating rotation + this.top = 0; + this.bottom = this.height; + } + + // Reset padding + this.paddingLeft = 0; + this.paddingTop = 0; + this.paddingRight = 0; + this.paddingBottom = 0; + + // Reset minSize + this.minSize = { + width: 0, + height: 0 + }; + }, + afterSetDimensions: noop, + + // + + beforeBuildLabels: noop, + buildLabels: noop, + afterBuildLabels: noop, + + // + + beforeFit: noop, + fit: function() { + + var ctx = this.ctx, + valueOrDefault = helpers.getValueOrDefault, + opts = this.options, + globalDefaults = Chart.defaults.global, + display = opts.display, + fontSize = valueOrDefault(opts.fontSize, globalDefaults.defaultFontSize), + minSize = this.minSize; + + if (this.isHorizontal()) { + minSize.width = this.maxWidth; // fill all the width + minSize.height = display ? fontSize + (opts.padding * 2) : 0; + } else { + minSize.width = display ? fontSize + (opts.padding * 2) : 0; + minSize.height = this.maxHeight; // fill all the height + } + + this.width = minSize.width; + this.height = minSize.height; + + }, + afterFit: noop, + + // Shared Methods + isHorizontal: function() { + var pos = this.options.position; + return pos === "top" || pos === "bottom"; + }, + + // Actualy draw the title block on the canvas + draw: function() { + var ctx = this.ctx, + valueOrDefault = helpers.getValueOrDefault, + opts = this.options, + globalDefaults = Chart.defaults.global; + + if (opts.display) { + var fontSize = valueOrDefault(opts.fontSize, globalDefaults.defaultFontSize), + fontStyle = valueOrDefault(opts.fontStyle, globalDefaults.defaultFontStyle), + fontFamily = valueOrDefault(opts.fontFamily, globalDefaults.defaultFontFamily), + titleFont = helpers.fontString(fontSize, fontStyle, fontFamily), + rotation = 0, + titleX, + titleY; + + ctx.fillStyle = valueOrDefault(opts.fontColor, globalDefaults.defaultFontColor); // render in correct colour + ctx.font = titleFont; + + // Horizontal + if (this.isHorizontal()) { + titleX = this.left + ((this.right - this.left) / 2); // midpoint of the width + titleY = this.top + ((this.bottom - this.top) / 2); // midpoint of the height + } else { + titleX = opts.position === 'left' ? this.left + (fontSize / 2) : this.right - (fontSize / 2); + titleY = this.top + ((this.bottom - this.top) / 2); + rotation = Math.PI * (opts.position === 'left' ? -0.5 : 0.5); + } + + ctx.save(); + ctx.translate(titleX, titleY); + ctx.rotate(rotation); + ctx.textAlign = 'center'; + ctx.textBaseline = 'middle'; + ctx.fillText(opts.text, 0, 0); + ctx.restore(); + } + } + }); }; },{}],33:[function(require,module,exports){ -"use strict"; +"use strict"; + +module.exports = function(Chart) { + + var helpers = Chart.helpers; + + Chart.defaults.global.tooltips = { + enabled: true, + custom: null, + mode: 'single', + backgroundColor: "rgba(0,0,0,0.8)", + titleFontStyle: "bold", + titleSpacing: 2, + titleMarginBottom: 6, + titleColor: "#fff", + titleAlign: "left", + bodySpacing: 2, + bodyColor: "#fff", + bodyAlign: "left", + footerFontStyle: "bold", + footerSpacing: 2, + footerMarginTop: 6, + footerColor: "#fff", + footerAlign: "left", + yPadding: 6, + xPadding: 6, + yAlign : 'center', + xAlign : 'center', + caretSize: 5, + cornerRadius: 6, + multiKeyBackground: '#fff', + callbacks: { + // Args are: (tooltipItems, data) + beforeTitle: helpers.noop, + title: function(tooltipItems, data) { + // Pick first xLabel for now + var title = ''; + + if (tooltipItems.length > 0) { + if (tooltipItems[0].xLabel) { + title = tooltipItems[0].xLabel; + } else if (data.labels.length > 0 && tooltipItems[0].index < data.labels.length) { + title = data.labels[tooltipItems[0].index]; + } + } + + return title; + }, + afterTitle: helpers.noop, + + // Args are: (tooltipItems, data) + beforeBody: helpers.noop, + + // Args are: (tooltipItem, data) + beforeLabel: helpers.noop, + label: function(tooltipItem, data) { + var datasetLabel = data.datasets[tooltipItem.datasetIndex].label || ''; + return datasetLabel + ': ' + tooltipItem.yLabel; + }, + afterLabel: helpers.noop, + + // Args are: (tooltipItems, data) + afterBody: helpers.noop, + + // Args are: (tooltipItems, data) + beforeFooter: helpers.noop, + footer: helpers.noop, + afterFooter: helpers.noop + } + }; + + // Helper to push or concat based on if the 2nd parameter is an array or not + function pushOrConcat(base, toPush) { + if (toPush) { + if (helpers.isArray(toPush)) { + base = base.concat(toPush); + } else { + base.push(toPush); + } + } + + return base; + } + + Chart.Tooltip = Chart.Element.extend({ + initialize: function() { + var options = this._options; + helpers.extend(this, { + _model: { + // Positioning + xPadding: options.tooltips.xPadding, + yPadding: options.tooltips.yPadding, + xAlign : options.tooltips.yAlign, + yAlign : options.tooltips.xAlign, + + // Body + bodyColor: options.tooltips.bodyColor, + _bodyFontFamily: helpers.getValueOrDefault(options.tooltips.bodyFontFamily, Chart.defaults.global.defaultFontFamily), + _bodyFontStyle: helpers.getValueOrDefault(options.tooltips.bodyFontStyle, Chart.defaults.global.defaultFontStyle), + _bodyAlign: options.tooltips.bodyAlign, + bodyFontSize: helpers.getValueOrDefault(options.tooltips.bodyFontSize, Chart.defaults.global.defaultFontSize), + bodySpacing: options.tooltips.bodySpacing, + + // Title + titleColor: options.tooltips.titleColor, + _titleFontFamily: helpers.getValueOrDefault(options.tooltips.titleFontFamily, Chart.defaults.global.defaultFontFamily), + _titleFontStyle: helpers.getValueOrDefault(options.tooltips.titleFontStyle, Chart.defaults.global.defaultFontStyle), + titleFontSize: helpers.getValueOrDefault(options.tooltips.titleFontSize, Chart.defaults.global.defaultFontSize), + _titleAlign: options.tooltips.titleAlign, + titleSpacing: options.tooltips.titleSpacing, + titleMarginBottom: options.tooltips.titleMarginBottom, + + // Footer + footerColor: options.tooltips.footerColor, + _footerFontFamily: helpers.getValueOrDefault(options.tooltips.footerFontFamily, Chart.defaults.global.defaultFontFamily), + _footerFontStyle: helpers.getValueOrDefault(options.tooltips.footerFontStyle, Chart.defaults.global.defaultFontStyle), + footerFontSize: helpers.getValueOrDefault(options.tooltips.footerFontSize, Chart.defaults.global.defaultFontSize), + _footerAlign: options.tooltips.footerAlign, + footerSpacing: options.tooltips.footerSpacing, + footerMarginTop: options.tooltips.footerMarginTop, + + // Appearance + caretSize: options.tooltips.caretSize, + cornerRadius: options.tooltips.cornerRadius, + backgroundColor: options.tooltips.backgroundColor, + opacity: 0, + legendColorBackground: options.tooltips.multiKeyBackground + } + }); + }, + + // Get the title + // Args are: (tooltipItem, data) + getTitle: function() { + var beforeTitle = this._options.tooltips.callbacks.beforeTitle.apply(this, arguments), + title = this._options.tooltips.callbacks.title.apply(this, arguments), + afterTitle = this._options.tooltips.callbacks.afterTitle.apply(this, arguments); + + var lines = []; + lines = pushOrConcat(lines, beforeTitle); + lines = pushOrConcat(lines, title); + lines = pushOrConcat(lines, afterTitle); + + return lines; + }, + + // Args are: (tooltipItem, data) + getBeforeBody: function() { + var lines = this._options.tooltips.callbacks.beforeBody.apply(this, arguments); + return helpers.isArray(lines) ? lines : lines !== undefined ? [lines] : []; + }, + + // Args are: (tooltipItem, data) + getBody: function(tooltipItems, data) { + var lines = []; + + helpers.each(tooltipItems, function(bodyItem) { + helpers.pushAllIfDefined(this._options.tooltips.callbacks.beforeLabel.call(this, bodyItem, data), lines); + helpers.pushAllIfDefined(this._options.tooltips.callbacks.label.call(this, bodyItem, data), lines); + helpers.pushAllIfDefined(this._options.tooltips.callbacks.afterLabel.call(this, bodyItem, data), lines); + }, this); + + return lines; + }, + + // Args are: (tooltipItem, data) + getAfterBody: function() { + var lines = this._options.tooltips.callbacks.afterBody.apply(this, arguments); + return helpers.isArray(lines) ? lines : lines !== undefined ? [lines] : []; + }, + + // Get the footer and beforeFooter and afterFooter lines + // Args are: (tooltipItem, data) + getFooter: function() { + var beforeFooter = this._options.tooltips.callbacks.beforeFooter.apply(this, arguments); + var footer = this._options.tooltips.callbacks.footer.apply(this, arguments); + var afterFooter = this._options.tooltips.callbacks.afterFooter.apply(this, arguments); + + var lines = []; + lines = pushOrConcat(lines, beforeFooter); + lines = pushOrConcat(lines, footer); + lines = pushOrConcat(lines, afterFooter); + + return lines; + }, + + getAveragePosition: function(elements) { + + if (!elements.length) { + return false; + } + + var xPositions = []; + var yPositions = []; + + helpers.each(elements, function(el) { + if (el) { + var pos = el.tooltipPosition(); + xPositions.push(pos.x); + yPositions.push(pos.y); + } + }); + + var x = 0, + y = 0; + for (var i = 0; i < xPositions.length; i++) { + x += xPositions[i]; + y += yPositions[i]; + } + + return { + x: Math.round(x / xPositions.length), + y: Math.round(y / xPositions.length) + }; + + }, + + update: function(changed) { + if (this._active.length) { + this._model.opacity = 1; + + var element = this._active[0], + labelColors = [], + tooltipPosition; + + var tooltipItems = []; + + if (this._options.tooltips.mode === 'single') { + var yScale = element._yScale || element._scale; // handle radar || polarArea charts + tooltipItems.push({ + xLabel: element._xScale ? element._xScale.getLabelForIndex(element._index, element._datasetIndex) : '', + yLabel: yScale ? yScale.getLabelForIndex(element._index, element._datasetIndex) : '', + index: element._index, + datasetIndex: element._datasetIndex + }); + tooltipPosition = this.getAveragePosition(this._active); + } else { + helpers.each(this._data.datasets, function(dataset, datasetIndex) { + if (!this._chartInstance.isDatasetVisible(datasetIndex)) { + return; + } + + var meta = this._chartInstance.getDatasetMeta(datasetIndex); + var currentElement = meta.data[element._index]; + if (currentElement) { + var yScale = element._yScale || element._scale; // handle radar || polarArea charts + + tooltipItems.push({ + xLabel: currentElement._xScale ? currentElement._xScale.getLabelForIndex(currentElement._index, currentElement._datasetIndex) : '', + yLabel: yScale ? yScale.getLabelForIndex(currentElement._index, currentElement._datasetIndex) : '', + index: element._index, + datasetIndex: datasetIndex + }); + } + }, this); + + helpers.each(this._active, function(active) { + if (active) { + labelColors.push({ + borderColor: active._view.borderColor, + backgroundColor: active._view.backgroundColor + }); + } + }, null); + + tooltipPosition = this.getAveragePosition(this._active); + } + + // Build the Text Lines + helpers.extend(this._model, { + title: this.getTitle(tooltipItems, this._data), + beforeBody: this.getBeforeBody(tooltipItems, this._data), + body: this.getBody(tooltipItems, this._data), + afterBody: this.getAfterBody(tooltipItems, this._data), + footer: this.getFooter(tooltipItems, this._data) + }); + + helpers.extend(this._model, { + x: Math.round(tooltipPosition.x), + y: Math.round(tooltipPosition.y), + caretPadding: helpers.getValueOrDefault(tooltipPosition.padding, 2), + labelColors: labelColors + }); + + // We need to determine alignment of + var tooltipSize = this.getTooltipSize(this._model); + this.determineAlignment(tooltipSize); // Smart Tooltip placement to stay on the canvas + + helpers.extend(this._model, this.getBackgroundPoint(this._model, tooltipSize)); + } else { + this._model.opacity = 0; + } + + if (changed && this._options.tooltips.custom) { + this._options.tooltips.custom.call(this, this._model); + } + + return this; + }, + getTooltipSize: function getTooltipSize(vm) { + var ctx = this._chart.ctx; + + var size = { + height: vm.yPadding * 2, // Tooltip Padding + width: 0 + }; + var combinedBodyLength = vm.body.length + vm.beforeBody.length + vm.afterBody.length; + + size.height += vm.title.length * vm.titleFontSize; // Title Lines + size.height += (vm.title.length - 1) * vm.titleSpacing; // Title Line Spacing + size.height += vm.title.length ? vm.titleMarginBottom : 0; // Title's bottom Margin + size.height += combinedBodyLength * vm.bodyFontSize; // Body Lines + size.height += combinedBodyLength ? (combinedBodyLength - 1) * vm.bodySpacing : 0; // Body Line Spacing + size.height += vm.footer.length ? vm.footerMarginTop : 0; // Footer Margin + size.height += vm.footer.length * (vm.footerFontSize); // Footer Lines + size.height += vm.footer.length ? (vm.footer.length - 1) * vm.footerSpacing : 0; // Footer Line Spacing + + // Width + ctx.font = helpers.fontString(vm.titleFontSize, vm._titleFontStyle, vm._titleFontFamily); + helpers.each(vm.title, function(line) { + size.width = Math.max(size.width, ctx.measureText(line).width); + }); + + ctx.font = helpers.fontString(vm.bodyFontSize, vm._bodyFontStyle, vm._bodyFontFamily); + helpers.each(vm.beforeBody.concat(vm.afterBody), function(line) { + size.width = Math.max(size.width, ctx.measureText(line).width); + }); + helpers.each(vm.body, function(line) { + size.width = Math.max(size.width, ctx.measureText(line).width + (this._options.tooltips.mode !== 'single' ? (vm.bodyFontSize + 2) : 0)); + }, this); + + ctx.font = helpers.fontString(vm.footerFontSize, vm._footerFontStyle, vm._footerFontFamily); + helpers.each(vm.footer, function(line) { + size.width = Math.max(size.width, ctx.measureText(line).width); + }); + size.width += 2 * vm.xPadding; + + return size; + }, + determineAlignment: function determineAlignment(size) { + if (this._model.y < size.height) { + this._model.yAlign = 'top'; + } else if (this._model.y > (this._chart.height - size.height)) { + this._model.yAlign = 'bottom'; + } + + var lf, rf; // functions to determine left, right alignment + var olf, orf; // functions to determine if left/right alignment causes tooltip to go outside chart + var yf; // function to get the y alignment if the tooltip goes outside of the left or right edges + var _this = this; + var midX = (this._chartInstance.chartArea.left + this._chartInstance.chartArea.right) / 2; + var midY = (this._chartInstance.chartArea.top + this._chartInstance.chartArea.bottom) / 2; + + if (this._model.yAlign === 'center') { + lf = function(x) { + return x <= midX; + }; + rf = function(x) { + return x > midX; + }; + } else { + lf = function(x) { + return x <= (size.width / 2); + }; + rf = function(x) { + return x >= (_this._chart.width - (size.width / 2)); + }; + } + + olf = function(x) { + return x + size.width > _this._chart.width; + }; + orf = function(x) { + return x - size.width < 0; + }; + yf = function(y) { + return y <= midY ? 'top' : 'bottom'; + }; + + if (lf(this._model.x)) { + this._model.xAlign = 'left'; + + // Is tooltip too wide and goes over the right side of the chart.? + if (olf(this._model.x)) { + this._model.xAlign = 'center'; + this._model.yAlign = yf(this._model.y); + } + } else if (rf(this._model.x)) { + this._model.xAlign = 'right'; + + // Is tooltip too wide and goes outside left edge of canvas? + if (orf(this._model.x)) { + this._model.xAlign = 'center'; + this._model.yAlign = yf(this._model.y); + } + } + }, + getBackgroundPoint: function getBackgroundPoint(vm, size) { + // Background Position + var pt = { + x: vm.x, + y: vm.y + }; + + if (vm.xAlign === 'right') { + pt.x -= size.width; + } else if (vm.xAlign === 'center') { + pt.x -= (size.width / 2); + } + + if (vm.yAlign === 'top') { + pt.y += vm.caretPadding + vm.caretSize; + } else if (vm.yAlign === 'bottom') { + pt.y -= size.height + vm.caretPadding + vm.caretSize; + } else { + pt.y -= (size.height / 2); + } + + if (vm.yAlign === 'center') { + if (vm.xAlign === 'left') { + pt.x += vm.caretPadding + vm.caretSize; + } else if (vm.xAlign === 'right') { + pt.x -= vm.caretPadding + vm.caretSize; + } + } else { + if (vm.xAlign === 'left') { + pt.x -= vm.cornerRadius + vm.caretPadding; + } else if (vm.xAlign === 'right') { + pt.x += vm.cornerRadius + vm.caretPadding; + } + } + + return pt; + }, + drawCaret: function drawCaret(tooltipPoint, size, opacity, caretPadding) { + var vm = this._view; + var ctx = this._chart.ctx; + var x1, x2, x3; + var y1, y2, y3; + + if (vm.yAlign === 'center') { + // Left or right side + if (vm.xAlign === 'left') { + x1 = tooltipPoint.x; + x2 = x1 - vm.caretSize; + x3 = x1; + } else { + x1 = tooltipPoint.x + size.width; + x2 = x1 + vm.caretSize; + x3 = x1; + } + + y2 = tooltipPoint.y + (size.height / 2); + y1 = y2 - vm.caretSize; + y3 = y2 + vm.caretSize; + } else { + if (vm.xAlign === 'left') { + x1 = tooltipPoint.x + vm.cornerRadius; + x2 = x1 + vm.caretSize; + x3 = x2 + vm.caretSize; + } else if (vm.xAlign === 'right') { + x1 = tooltipPoint.x + size.width - vm.cornerRadius; + x2 = x1 - vm.caretSize; + x3 = x2 - vm.caretSize; + } else { + x2 = tooltipPoint.x + (size.width / 2); + x1 = x2 - vm.caretSize; + x3 = x2 + vm.caretSize; + } + + if (vm.yAlign === 'top') { + y1 = tooltipPoint.y; + y2 = y1 - vm.caretSize; + y3 = y1; + } else { + y1 = tooltipPoint.y + size.height; + y2 = y1 + vm.caretSize; + y3 = y1; + } + } + + var bgColor = helpers.color(vm.backgroundColor); + ctx.fillStyle = bgColor.alpha(opacity * bgColor.alpha()).rgbString(); + ctx.beginPath(); + ctx.moveTo(x1, y1); + ctx.lineTo(x2, y2); + ctx.lineTo(x3, y3); + ctx.closePath(); + ctx.fill(); + }, + drawTitle: function drawTitle(pt, vm, ctx, opacity) { + if (vm.title.length) { + ctx.textAlign = vm._titleAlign; + ctx.textBaseline = "top"; + + var titleColor = helpers.color(vm.titleColor); + ctx.fillStyle = titleColor.alpha(opacity * titleColor.alpha()).rgbString(); + ctx.font = helpers.fontString(vm.titleFontSize, vm._titleFontStyle, vm._titleFontFamily); + + helpers.each(vm.title, function(title, i) { + ctx.fillText(title, pt.x, pt.y); + pt.y += vm.titleFontSize + vm.titleSpacing; // Line Height and spacing + + if (i + 1 === vm.title.length) { + pt.y += vm.titleMarginBottom - vm.titleSpacing; // If Last, add margin, remove spacing + } + }); + } + }, + drawBody: function drawBody(pt, vm, ctx, opacity) { + ctx.textAlign = vm._bodyAlign; + ctx.textBaseline = "top"; + + var bodyColor = helpers.color(vm.bodyColor); + ctx.fillStyle = bodyColor.alpha(opacity * bodyColor.alpha()).rgbString(); + ctx.font = helpers.fontString(vm.bodyFontSize, vm._bodyFontStyle, vm._bodyFontFamily); + + // Before Body + helpers.each(vm.beforeBody, function(beforeBody) { + ctx.fillText(beforeBody, pt.x, pt.y); + pt.y += vm.bodyFontSize + vm.bodySpacing; + }); + + helpers.each(vm.body, function(body, i) { + // Draw Legend-like boxes if needed + if (this._options.tooltips.mode !== 'single') { + // Fill a white rect so that colours merge nicely if the opacity is < 1 + ctx.fillStyle = helpers.color(vm.legendColorBackground).alpha(opacity).rgbaString(); + ctx.fillRect(pt.x, pt.y, vm.bodyFontSize, vm.bodyFontSize); + + // Border + ctx.strokeStyle = helpers.color(vm.labelColors[i].borderColor).alpha(opacity).rgbaString(); + ctx.strokeRect(pt.x, pt.y, vm.bodyFontSize, vm.bodyFontSize); + + // Inner square + ctx.fillStyle = helpers.color(vm.labelColors[i].backgroundColor).alpha(opacity).rgbaString(); + ctx.fillRect(pt.x + 1, pt.y + 1, vm.bodyFontSize - 2, vm.bodyFontSize - 2); + + ctx.fillStyle = helpers.color(vm.bodyColor).alpha(opacity).rgbaString(); // Return fill style for text + } + + // Body Line + ctx.fillText(body, pt.x + (this._options.tooltips.mode !== 'single' ? (vm.bodyFontSize + 2) : 0), pt.y); + + pt.y += vm.bodyFontSize + vm.bodySpacing; + }, this); + + // After Body + helpers.each(vm.afterBody, function(afterBody) { + ctx.fillText(afterBody, pt.x, pt.y); + pt.y += vm.bodyFontSize; + }); + + pt.y -= vm.bodySpacing; // Remove last body spacing + }, + drawFooter: function drawFooter(pt, vm, ctx, opacity) { + if (vm.footer.length) { + pt.y += vm.footerMarginTop; + + ctx.textAlign = vm._footerAlign; + ctx.textBaseline = "top"; + + var footerColor = helpers.color(vm.footerColor); + ctx.fillStyle = footerColor.alpha(opacity * footerColor.alpha()).rgbString(); + ctx.font = helpers.fontString(vm.footerFontSize, vm._footerFontStyle, vm._footerFontFamily); + + helpers.each(vm.footer, function(footer) { + ctx.fillText(footer, pt.x, pt.y); + pt.y += vm.footerFontSize + vm.footerSpacing; + }); + } + }, + draw: function draw() { + var ctx = this._chart.ctx; + var vm = this._view; + + if (vm.opacity === 0) { + return; + } + + var caretPadding = vm.caretPadding; + var tooltipSize = this.getTooltipSize(vm); + var pt = { + x: vm.x, + y: vm.y + }; + + // IE11/Edge does not like very small opacities, so snap to 0 + var opacity = Math.abs(vm.opacity < 1e-3) ? 0 : vm.opacity; + + if (this._options.tooltips.enabled) { + // Draw Background + var bgColor = helpers.color(vm.backgroundColor); + ctx.fillStyle = bgColor.alpha(opacity * bgColor.alpha()).rgbString(); + helpers.drawRoundedRectangle(ctx, pt.x, pt.y, tooltipSize.width, tooltipSize.height, vm.cornerRadius); + ctx.fill(); + + // Draw Caret + this.drawCaret(pt, tooltipSize, opacity, caretPadding); + + // Draw Title, Body, and Footer + pt.x += vm.xPadding; + pt.y += vm.yPadding; + + // Titles + this.drawTitle(pt, vm, ctx, opacity); + + // Body + this.drawBody(pt, vm, ctx, opacity); + + // Footer + this.drawFooter(pt, vm, ctx, opacity); + } + } + }); +}; -module.exports = function(Chart) { - - var helpers = Chart.helpers; - - Chart.defaults.global.tooltips = { - enabled: true, - custom: null, - mode: 'single', - backgroundColor: "rgba(0,0,0,0.8)", - titleFontStyle: "bold", - titleSpacing: 2, - titleMarginBottom: 6, - titleColor: "#fff", - titleAlign: "left", - bodySpacing: 2, - bodyColor: "#fff", - bodyAlign: "left", - footerFontStyle: "bold", - footerSpacing: 2, - footerMarginTop: 6, - footerColor: "#fff", - footerAlign: "left", - yPadding: 6, - xPadding: 6, - yAlign : 'center', - xAlign : 'center', - caretSize: 5, - cornerRadius: 6, - multiKeyBackground: '#fff', - callbacks: { - // Args are: (tooltipItems, data) - beforeTitle: helpers.noop, - title: function(tooltipItems, data) { - // Pick first xLabel for now - var title = ''; - - if (tooltipItems.length > 0) { - if (tooltipItems[0].xLabel) { - title = tooltipItems[0].xLabel; - } else if (data.labels.length > 0 && tooltipItems[0].index < data.labels.length) { - title = data.labels[tooltipItems[0].index]; - } - } - - return title; - }, - afterTitle: helpers.noop, - - // Args are: (tooltipItems, data) - beforeBody: helpers.noop, - - // Args are: (tooltipItem, data) - beforeLabel: helpers.noop, - label: function(tooltipItem, data) { - var datasetLabel = data.datasets[tooltipItem.datasetIndex].label || ''; - return datasetLabel + ': ' + tooltipItem.yLabel; - }, - afterLabel: helpers.noop, - - // Args are: (tooltipItems, data) - afterBody: helpers.noop, - - // Args are: (tooltipItems, data) - beforeFooter: helpers.noop, - footer: helpers.noop, - afterFooter: helpers.noop - } - }; - - // Helper to push or concat based on if the 2nd parameter is an array or not - function pushOrConcat(base, toPush) { - if (toPush) { - if (helpers.isArray(toPush)) { - base = base.concat(toPush); - } else { - base.push(toPush); - } - } - - return base; - } - - Chart.Tooltip = Chart.Element.extend({ - initialize: function() { - var options = this._options; - helpers.extend(this, { - _model: { - // Positioning - xPadding: options.tooltips.xPadding, - yPadding: options.tooltips.yPadding, - xAlign : options.tooltips.yAlign, - yAlign : options.tooltips.xAlign, - - // Body - bodyColor: options.tooltips.bodyColor, - _bodyFontFamily: helpers.getValueOrDefault(options.tooltips.bodyFontFamily, Chart.defaults.global.defaultFontFamily), - _bodyFontStyle: helpers.getValueOrDefault(options.tooltips.bodyFontStyle, Chart.defaults.global.defaultFontStyle), - _bodyAlign: options.tooltips.bodyAlign, - bodyFontSize: helpers.getValueOrDefault(options.tooltips.bodyFontSize, Chart.defaults.global.defaultFontSize), - bodySpacing: options.tooltips.bodySpacing, - - // Title - titleColor: options.tooltips.titleColor, - _titleFontFamily: helpers.getValueOrDefault(options.tooltips.titleFontFamily, Chart.defaults.global.defaultFontFamily), - _titleFontStyle: helpers.getValueOrDefault(options.tooltips.titleFontStyle, Chart.defaults.global.defaultFontStyle), - titleFontSize: helpers.getValueOrDefault(options.tooltips.titleFontSize, Chart.defaults.global.defaultFontSize), - _titleAlign: options.tooltips.titleAlign, - titleSpacing: options.tooltips.titleSpacing, - titleMarginBottom: options.tooltips.titleMarginBottom, - - // Footer - footerColor: options.tooltips.footerColor, - _footerFontFamily: helpers.getValueOrDefault(options.tooltips.footerFontFamily, Chart.defaults.global.defaultFontFamily), - _footerFontStyle: helpers.getValueOrDefault(options.tooltips.footerFontStyle, Chart.defaults.global.defaultFontStyle), - footerFontSize: helpers.getValueOrDefault(options.tooltips.footerFontSize, Chart.defaults.global.defaultFontSize), - _footerAlign: options.tooltips.footerAlign, - footerSpacing: options.tooltips.footerSpacing, - footerMarginTop: options.tooltips.footerMarginTop, - - // Appearance - caretSize: options.tooltips.caretSize, - cornerRadius: options.tooltips.cornerRadius, - backgroundColor: options.tooltips.backgroundColor, - opacity: 0, - legendColorBackground: options.tooltips.multiKeyBackground - } - }); - }, - - // Get the title - // Args are: (tooltipItem, data) - getTitle: function() { - var beforeTitle = this._options.tooltips.callbacks.beforeTitle.apply(this, arguments), - title = this._options.tooltips.callbacks.title.apply(this, arguments), - afterTitle = this._options.tooltips.callbacks.afterTitle.apply(this, arguments); - - var lines = []; - lines = pushOrConcat(lines, beforeTitle); - lines = pushOrConcat(lines, title); - lines = pushOrConcat(lines, afterTitle); - - return lines; - }, - - // Args are: (tooltipItem, data) - getBeforeBody: function() { - var lines = this._options.tooltips.callbacks.beforeBody.apply(this, arguments); - return helpers.isArray(lines) ? lines : lines !== undefined ? [lines] : []; - }, - - // Args are: (tooltipItem, data) - getBody: function(tooltipItems, data) { - var lines = []; - - helpers.each(tooltipItems, function(bodyItem) { - helpers.pushAllIfDefined(this._options.tooltips.callbacks.beforeLabel.call(this, bodyItem, data), lines); - helpers.pushAllIfDefined(this._options.tooltips.callbacks.label.call(this, bodyItem, data), lines); - helpers.pushAllIfDefined(this._options.tooltips.callbacks.afterLabel.call(this, bodyItem, data), lines); - }, this); - - return lines; - }, - - // Args are: (tooltipItem, data) - getAfterBody: function() { - var lines = this._options.tooltips.callbacks.afterBody.apply(this, arguments); - return helpers.isArray(lines) ? lines : lines !== undefined ? [lines] : []; - }, - - // Get the footer and beforeFooter and afterFooter lines - // Args are: (tooltipItem, data) - getFooter: function() { - var beforeFooter = this._options.tooltips.callbacks.beforeFooter.apply(this, arguments); - var footer = this._options.tooltips.callbacks.footer.apply(this, arguments); - var afterFooter = this._options.tooltips.callbacks.afterFooter.apply(this, arguments); - - var lines = []; - lines = pushOrConcat(lines, beforeFooter); - lines = pushOrConcat(lines, footer); - lines = pushOrConcat(lines, afterFooter); - - return lines; - }, - - getAveragePosition: function(elements) { - - if (!elements.length) { - return false; - } - - var xPositions = []; - var yPositions = []; - - helpers.each(elements, function(el) { - if (el) { - var pos = el.tooltipPosition(); - xPositions.push(pos.x); - yPositions.push(pos.y); - } - }); - - var x = 0, - y = 0; - for (var i = 0; i < xPositions.length; i++) { - x += xPositions[i]; - y += yPositions[i]; - } - - return { - x: Math.round(x / xPositions.length), - y: Math.round(y / xPositions.length) - }; - - }, - - update: function(changed) { - if (this._active.length) { - this._model.opacity = 1; - - var element = this._active[0], - labelColors = [], - tooltipPosition; - - var tooltipItems = []; - - if (this._options.tooltips.mode === 'single') { - var yScale = element._yScale || element._scale; // handle radar || polarArea charts - tooltipItems.push({ - xLabel: element._xScale ? element._xScale.getLabelForIndex(element._index, element._datasetIndex) : '', - yLabel: yScale ? yScale.getLabelForIndex(element._index, element._datasetIndex) : '', - index: element._index, - datasetIndex: element._datasetIndex - }); - tooltipPosition = this.getAveragePosition(this._active); - } else { - helpers.each(this._data.datasets, function(dataset, datasetIndex) { - if (!this._chartInstance.isDatasetVisible(datasetIndex)) { - return; - } - - var meta = this._chartInstance.getDatasetMeta(datasetIndex); - var currentElement = meta.data[element._index]; - if (currentElement) { - var yScale = element._yScale || element._scale; // handle radar || polarArea charts - - tooltipItems.push({ - xLabel: currentElement._xScale ? currentElement._xScale.getLabelForIndex(currentElement._index, currentElement._datasetIndex) : '', - yLabel: yScale ? yScale.getLabelForIndex(currentElement._index, currentElement._datasetIndex) : '', - index: element._index, - datasetIndex: datasetIndex - }); - } - }, this); - - helpers.each(this._active, function(active) { - if (active) { - labelColors.push({ - borderColor: active._view.borderColor, - backgroundColor: active._view.backgroundColor - }); - } - }, null); - - tooltipPosition = this.getAveragePosition(this._active); - } - - // Build the Text Lines - helpers.extend(this._model, { - title: this.getTitle(tooltipItems, this._data), - beforeBody: this.getBeforeBody(tooltipItems, this._data), - body: this.getBody(tooltipItems, this._data), - afterBody: this.getAfterBody(tooltipItems, this._data), - footer: this.getFooter(tooltipItems, this._data) - }); - - helpers.extend(this._model, { - x: Math.round(tooltipPosition.x), - y: Math.round(tooltipPosition.y), - caretPadding: helpers.getValueOrDefault(tooltipPosition.padding, 2), - labelColors: labelColors - }); - - // We need to determine alignment of - var tooltipSize = this.getTooltipSize(this._model); - this.determineAlignment(tooltipSize); // Smart Tooltip placement to stay on the canvas - - helpers.extend(this._model, this.getBackgroundPoint(this._model, tooltipSize)); - } else { - this._model.opacity = 0; - } - - if (changed && this._options.tooltips.custom) { - this._options.tooltips.custom.call(this, this._model); - } - - return this; - }, - getTooltipSize: function getTooltipSize(vm) { - var ctx = this._chart.ctx; - - var size = { - height: vm.yPadding * 2, // Tooltip Padding - width: 0 - }; - var combinedBodyLength = vm.body.length + vm.beforeBody.length + vm.afterBody.length; - - size.height += vm.title.length * vm.titleFontSize; // Title Lines - size.height += (vm.title.length - 1) * vm.titleSpacing; // Title Line Spacing - size.height += vm.title.length ? vm.titleMarginBottom : 0; // Title's bottom Margin - size.height += combinedBodyLength * vm.bodyFontSize; // Body Lines - size.height += combinedBodyLength ? (combinedBodyLength - 1) * vm.bodySpacing : 0; // Body Line Spacing - size.height += vm.footer.length ? vm.footerMarginTop : 0; // Footer Margin - size.height += vm.footer.length * (vm.footerFontSize); // Footer Lines - size.height += vm.footer.length ? (vm.footer.length - 1) * vm.footerSpacing : 0; // Footer Line Spacing - - // Width - ctx.font = helpers.fontString(vm.titleFontSize, vm._titleFontStyle, vm._titleFontFamily); - helpers.each(vm.title, function(line) { - size.width = Math.max(size.width, ctx.measureText(line).width); - }); - - ctx.font = helpers.fontString(vm.bodyFontSize, vm._bodyFontStyle, vm._bodyFontFamily); - helpers.each(vm.beforeBody.concat(vm.afterBody), function(line) { - size.width = Math.max(size.width, ctx.measureText(line).width); - }); - helpers.each(vm.body, function(line) { - size.width = Math.max(size.width, ctx.measureText(line).width + (this._options.tooltips.mode !== 'single' ? (vm.bodyFontSize + 2) : 0)); - }, this); - - ctx.font = helpers.fontString(vm.footerFontSize, vm._footerFontStyle, vm._footerFontFamily); - helpers.each(vm.footer, function(line) { - size.width = Math.max(size.width, ctx.measureText(line).width); - }); - size.width += 2 * vm.xPadding; - - return size; - }, - determineAlignment: function determineAlignment(size) { - if (this._model.y < size.height) { - this._model.yAlign = 'top'; - } else if (this._model.y > (this._chart.height - size.height)) { - this._model.yAlign = 'bottom'; - } - - var lf, rf; // functions to determine left, right alignment - var olf, orf; // functions to determine if left/right alignment causes tooltip to go outside chart - var yf; // function to get the y alignment if the tooltip goes outside of the left or right edges - var _this = this; - var midX = (this._chartInstance.chartArea.left + this._chartInstance.chartArea.right) / 2; - var midY = (this._chartInstance.chartArea.top + this._chartInstance.chartArea.bottom) / 2; - - if (this._model.yAlign === 'center') { - lf = function(x) { - return x <= midX; - }; - rf = function(x) { - return x > midX; - }; - } else { - lf = function(x) { - return x <= (size.width / 2); - }; - rf = function(x) { - return x >= (_this._chart.width - (size.width / 2)); - }; - } - - olf = function(x) { - return x + size.width > _this._chart.width; - }; - orf = function(x) { - return x - size.width < 0; - }; - yf = function(y) { - return y <= midY ? 'top' : 'bottom'; - }; - - if (lf(this._model.x)) { - this._model.xAlign = 'left'; - - // Is tooltip too wide and goes over the right side of the chart.? - if (olf(this._model.x)) { - this._model.xAlign = 'center'; - this._model.yAlign = yf(this._model.y); - } - } else if (rf(this._model.x)) { - this._model.xAlign = 'right'; - - // Is tooltip too wide and goes outside left edge of canvas? - if (orf(this._model.x)) { - this._model.xAlign = 'center'; - this._model.yAlign = yf(this._model.y); - } - } - }, - getBackgroundPoint: function getBackgroundPoint(vm, size) { - // Background Position - var pt = { - x: vm.x, - y: vm.y - }; - - if (vm.xAlign === 'right') { - pt.x -= size.width; - } else if (vm.xAlign === 'center') { - pt.x -= (size.width / 2); - } - - if (vm.yAlign === 'top') { - pt.y += vm.caretPadding + vm.caretSize; - } else if (vm.yAlign === 'bottom') { - pt.y -= size.height + vm.caretPadding + vm.caretSize; - } else { - pt.y -= (size.height / 2); - } - - if (vm.yAlign === 'center') { - if (vm.xAlign === 'left') { - pt.x += vm.caretPadding + vm.caretSize; - } else if (vm.xAlign === 'right') { - pt.x -= vm.caretPadding + vm.caretSize; - } - } else { - if (vm.xAlign === 'left') { - pt.x -= vm.cornerRadius + vm.caretPadding; - } else if (vm.xAlign === 'right') { - pt.x += vm.cornerRadius + vm.caretPadding; - } - } - - return pt; - }, - drawCaret: function drawCaret(tooltipPoint, size, opacity, caretPadding) { - var vm = this._view; - var ctx = this._chart.ctx; - var x1, x2, x3; - var y1, y2, y3; - - if (vm.yAlign === 'center') { - // Left or right side - if (vm.xAlign === 'left') { - x1 = tooltipPoint.x; - x2 = x1 - vm.caretSize; - x3 = x1; - } else { - x1 = tooltipPoint.x + size.width; - x2 = x1 + vm.caretSize; - x3 = x1; - } - - y2 = tooltipPoint.y + (size.height / 2); - y1 = y2 - vm.caretSize; - y3 = y2 + vm.caretSize; - } else { - if (vm.xAlign === 'left') { - x1 = tooltipPoint.x + vm.cornerRadius; - x2 = x1 + vm.caretSize; - x3 = x2 + vm.caretSize; - } else if (vm.xAlign === 'right') { - x1 = tooltipPoint.x + size.width - vm.cornerRadius; - x2 = x1 - vm.caretSize; - x3 = x2 - vm.caretSize; - } else { - x2 = tooltipPoint.x + (size.width / 2); - x1 = x2 - vm.caretSize; - x3 = x2 + vm.caretSize; - } - - if (vm.yAlign === 'top') { - y1 = tooltipPoint.y; - y2 = y1 - vm.caretSize; - y3 = y1; - } else { - y1 = tooltipPoint.y + size.height; - y2 = y1 + vm.caretSize; - y3 = y1; - } - } - - var bgColor = helpers.color(vm.backgroundColor); - ctx.fillStyle = bgColor.alpha(opacity * bgColor.alpha()).rgbString(); - ctx.beginPath(); - ctx.moveTo(x1, y1); - ctx.lineTo(x2, y2); - ctx.lineTo(x3, y3); - ctx.closePath(); - ctx.fill(); - }, - drawTitle: function drawTitle(pt, vm, ctx, opacity) { - if (vm.title.length) { - ctx.textAlign = vm._titleAlign; - ctx.textBaseline = "top"; - - var titleColor = helpers.color(vm.titleColor); - ctx.fillStyle = titleColor.alpha(opacity * titleColor.alpha()).rgbString(); - ctx.font = helpers.fontString(vm.titleFontSize, vm._titleFontStyle, vm._titleFontFamily); - - helpers.each(vm.title, function(title, i) { - ctx.fillText(title, pt.x, pt.y); - pt.y += vm.titleFontSize + vm.titleSpacing; // Line Height and spacing - - if (i + 1 === vm.title.length) { - pt.y += vm.titleMarginBottom - vm.titleSpacing; // If Last, add margin, remove spacing - } - }); - } - }, - drawBody: function drawBody(pt, vm, ctx, opacity) { - ctx.textAlign = vm._bodyAlign; - ctx.textBaseline = "top"; - - var bodyColor = helpers.color(vm.bodyColor); - ctx.fillStyle = bodyColor.alpha(opacity * bodyColor.alpha()).rgbString(); - ctx.font = helpers.fontString(vm.bodyFontSize, vm._bodyFontStyle, vm._bodyFontFamily); - - // Before Body - helpers.each(vm.beforeBody, function(beforeBody) { - ctx.fillText(beforeBody, pt.x, pt.y); - pt.y += vm.bodyFontSize + vm.bodySpacing; - }); - - helpers.each(vm.body, function(body, i) { - // Draw Legend-like boxes if needed - if (this._options.tooltips.mode !== 'single') { - // Fill a white rect so that colours merge nicely if the opacity is < 1 - ctx.fillStyle = helpers.color(vm.legendColorBackground).alpha(opacity).rgbaString(); - ctx.fillRect(pt.x, pt.y, vm.bodyFontSize, vm.bodyFontSize); - - // Border - ctx.strokeStyle = helpers.color(vm.labelColors[i].borderColor).alpha(opacity).rgbaString(); - ctx.strokeRect(pt.x, pt.y, vm.bodyFontSize, vm.bodyFontSize); - - // Inner square - ctx.fillStyle = helpers.color(vm.labelColors[i].backgroundColor).alpha(opacity).rgbaString(); - ctx.fillRect(pt.x + 1, pt.y + 1, vm.bodyFontSize - 2, vm.bodyFontSize - 2); - - ctx.fillStyle = helpers.color(vm.bodyColor).alpha(opacity).rgbaString(); // Return fill style for text - } - - // Body Line - ctx.fillText(body, pt.x + (this._options.tooltips.mode !== 'single' ? (vm.bodyFontSize + 2) : 0), pt.y); - - pt.y += vm.bodyFontSize + vm.bodySpacing; - }, this); - - // After Body - helpers.each(vm.afterBody, function(afterBody) { - ctx.fillText(afterBody, pt.x, pt.y); - pt.y += vm.bodyFontSize; - }); - - pt.y -= vm.bodySpacing; // Remove last body spacing - }, - drawFooter: function drawFooter(pt, vm, ctx, opacity) { - if (vm.footer.length) { - pt.y += vm.footerMarginTop; - - ctx.textAlign = vm._footerAlign; - ctx.textBaseline = "top"; - - var footerColor = helpers.color(vm.footerColor); - ctx.fillStyle = footerColor.alpha(opacity * footerColor.alpha()).rgbString(); - ctx.font = helpers.fontString(vm.footerFontSize, vm._footerFontStyle, vm._footerFontFamily); - - helpers.each(vm.footer, function(footer) { - ctx.fillText(footer, pt.x, pt.y); - pt.y += vm.footerFontSize + vm.footerSpacing; - }); - } - }, - draw: function draw() { - var ctx = this._chart.ctx; - var vm = this._view; - - if (vm.opacity === 0) { - return; - } - - var caretPadding = vm.caretPadding; - var tooltipSize = this.getTooltipSize(vm); - var pt = { - x: vm.x, - y: vm.y - }; - - // IE11/Edge does not like very small opacities, so snap to 0 - var opacity = Math.abs(vm.opacity < 1e-3) ? 0 : vm.opacity; - - if (this._options.tooltips.enabled) { - // Draw Background - var bgColor = helpers.color(vm.backgroundColor); - ctx.fillStyle = bgColor.alpha(opacity * bgColor.alpha()).rgbString(); - helpers.drawRoundedRectangle(ctx, pt.x, pt.y, tooltipSize.width, tooltipSize.height, vm.cornerRadius); - ctx.fill(); - - // Draw Caret - this.drawCaret(pt, tooltipSize, opacity, caretPadding); - - // Draw Title, Body, and Footer - pt.x += vm.xPadding; - pt.y += vm.yPadding; - - // Titles - this.drawTitle(pt, vm, ctx, opacity); - - // Body - this.drawBody(pt, vm, ctx, opacity); - - // Footer - this.drawFooter(pt, vm, ctx, opacity); - } - } - }); -}; - },{}],34:[function(require,module,exports){ -"use strict"; +"use strict"; + +module.exports = function(Chart, moment) { + + var helpers = Chart.helpers, + globalOpts = Chart.defaults.global; + + globalOpts.elements.arc = { + backgroundColor: globalOpts.defaultColor, + borderColor: "#fff", + borderWidth: 2 + }; + + Chart.elements.Arc = Chart.Element.extend({ + inLabelRange: function(mouseX) { + var vm = this._view; + + if (vm) { + return (Math.pow(mouseX - vm.x, 2) < Math.pow(vm.radius + vm.hoverRadius, 2)); + } else { + return false; + } + }, + inRange: function(chartX, chartY) { + var vm = this._view; + + if (vm) { + var pointRelativePosition = helpers.getAngleFromPoint(vm, { + x: chartX, + y: chartY + }), + angle = pointRelativePosition.angle, + distance = pointRelativePosition.distance; + + //Sanitise angle range + var startAngle = vm.startAngle; + var endAngle = vm.endAngle; + while (endAngle < startAngle) { + endAngle += 2.0 * Math.PI; + } + while (angle > endAngle) { + angle -= 2.0 * Math.PI; + } + while (angle < startAngle) { + angle += 2.0 * Math.PI; + } + + //Check if within the range of the open/close angle + var betweenAngles = (angle >= startAngle && angle <= endAngle), + withinRadius = (distance >= vm.innerRadius && distance <= vm.outerRadius); + + return (betweenAngles && withinRadius); + } else { + return false; + } + }, + tooltipPosition: function() { + var vm = this._view; + + var centreAngle = vm.startAngle + ((vm.endAngle - vm.startAngle) / 2), + rangeFromCentre = (vm.outerRadius - vm.innerRadius) / 2 + vm.innerRadius; + return { + x: vm.x + (Math.cos(centreAngle) * rangeFromCentre), + y: vm.y + (Math.sin(centreAngle) * rangeFromCentre) + }; + }, + draw: function() { + + var ctx = this._chart.ctx, + vm = this._view, + sA = vm.startAngle, + eA = vm.endAngle; + + ctx.beginPath(); + + ctx.arc(vm.x, vm.y, vm.outerRadius, sA, eA); + ctx.arc(vm.x, vm.y, vm.innerRadius, eA, sA, true); + + ctx.closePath(); + ctx.strokeStyle = vm.borderColor; + ctx.lineWidth = vm.borderWidth; + + ctx.fillStyle = vm.backgroundColor; + + ctx.fill(); + ctx.lineJoin = 'bevel'; + + if (vm.borderWidth) { + ctx.stroke(); + } + } + }); +}; -module.exports = function(Chart, moment) { - - var helpers = Chart.helpers; - - Chart.defaults.global.elements.arc = { - backgroundColor: Chart.defaults.global.defaultColor, - borderColor: "#fff", - borderWidth: 2 - }; - - Chart.elements.Arc = Chart.Element.extend({ - inLabelRange: function(mouseX) { - var vm = this._view; - - if (vm) { - return (Math.pow(mouseX - vm.x, 2) < Math.pow(vm.radius + vm.hoverRadius, 2)); - } else { - return false; - } - }, - inRange: function(chartX, chartY) { - - var vm = this._view; - - if (vm) { - var pointRelativePosition = helpers.getAngleFromPoint(vm, { - x: chartX, - y: chartY - }); - - //Sanitise angle range - var startAngle = vm.startAngle; - var endAngle = vm.endAngle; - while (endAngle < startAngle) { - endAngle += 2.0 * Math.PI; - } - while (pointRelativePosition.angle > endAngle) { - pointRelativePosition.angle -= 2.0 * Math.PI; - } - while (pointRelativePosition.angle < startAngle) { - pointRelativePosition.angle += 2.0 * Math.PI; - } - - //Check if within the range of the open/close angle - var betweenAngles = (pointRelativePosition.angle >= startAngle && pointRelativePosition.angle <= endAngle), - withinRadius = (pointRelativePosition.distance >= vm.innerRadius && pointRelativePosition.distance <= vm.outerRadius); - - return (betweenAngles && withinRadius); - } else { - return false; - } - }, - tooltipPosition: function() { - var vm = this._view; - - var centreAngle = vm.startAngle + ((vm.endAngle - vm.startAngle) / 2), - rangeFromCentre = (vm.outerRadius - vm.innerRadius) / 2 + vm.innerRadius; - return { - x: vm.x + (Math.cos(centreAngle) * rangeFromCentre), - y: vm.y + (Math.sin(centreAngle) * rangeFromCentre) - }; - }, - draw: function() { - - var ctx = this._chart.ctx; - var vm = this._view; - - ctx.beginPath(); - - ctx.arc(vm.x, vm.y, vm.outerRadius, vm.startAngle, vm.endAngle); - - ctx.arc(vm.x, vm.y, vm.innerRadius, vm.endAngle, vm.startAngle, true); - - ctx.closePath(); - ctx.strokeStyle = vm.borderColor; - ctx.lineWidth = vm.borderWidth; - - ctx.fillStyle = vm.backgroundColor; - - ctx.fill(); - ctx.lineJoin = 'bevel'; - - if (vm.borderWidth) { - ctx.stroke(); - } - } - }); -}; - },{}],35:[function(require,module,exports){ -"use strict"; - -module.exports = function(Chart) { - - var helpers = Chart.helpers; - - Chart.defaults.global.elements.line = { - tension: 0.4, - backgroundColor: Chart.defaults.global.defaultColor, - borderWidth: 3, - borderColor: Chart.defaults.global.defaultColor, - borderCapStyle: 'butt', - borderDash: [], - borderDashOffset: 0.0, - borderJoinStyle: 'miter', - fill: true // do we fill in the area between the line and its base axis - }; - - Chart.elements.Line = Chart.Element.extend({ - lineToNextPoint: function(previousPoint, point, nextPoint, skipHandler, previousSkipHandler) { - var ctx = this._chart.ctx; - - if (point._view.skip) { - skipHandler.call(this, previousPoint, point, nextPoint); - } else if (previousPoint._view.skip) { - previousSkipHandler.call(this, previousPoint, point, nextPoint); - } else if (point._view.tension === 0) { - ctx.lineTo(point._view.x, point._view.y); - } else { - // Line between points - ctx.bezierCurveTo( - previousPoint._view.controlPointNextX, - previousPoint._view.controlPointNextY, - point._view.controlPointPreviousX, - point._view.controlPointPreviousY, - point._view.x, - point._view.y - ); - } - }, - - draw: function() { - var _this = this; - - var vm = this._view; - var ctx = this._chart.ctx; - var first = this._children[0]; - var last = this._children[this._children.length - 1]; - - function loopBackToStart(drawLineToCenter) { - if (!first._view.skip && !last._view.skip) { - // Draw a bezier line from last to first - ctx.bezierCurveTo( - last._view.controlPointNextX, - last._view.controlPointNextY, - first._view.controlPointPreviousX, - first._view.controlPointPreviousY, - first._view.x, - first._view.y - ); - } else if (drawLineToCenter) { - // Go to center - ctx.lineTo(_this._view.scaleZero.x, _this._view.scaleZero.y); - } - } - - ctx.save(); - - // If we had points and want to fill this line, do so. - if (this._children.length > 0 && vm.fill) { - // Draw the background first (so the border is always on top) - ctx.beginPath(); - - helpers.each(this._children, function(point, index) { - var previous = helpers.previousItem(this._children, index); - var next = helpers.nextItem(this._children, index); - - // First point moves to it's starting position no matter what - if (index === 0) { - if (this._loop) { - ctx.moveTo(vm.scaleZero.x, vm.scaleZero.y); - } else { - ctx.moveTo(point._view.x, vm.scaleZero); - } - - if (point._view.skip) { - if (!this._loop) { - ctx.moveTo(next._view.x, this._view.scaleZero); - } - } else { - ctx.lineTo(point._view.x, point._view.y); - } - } else { - this.lineToNextPoint(previous, point, next, function(previousPoint, point, nextPoint) { - if (this._loop) { - // Go to center - ctx.lineTo(this._view.scaleZero.x, this._view.scaleZero.y); - } else { - ctx.lineTo(previousPoint._view.x, this._view.scaleZero); - ctx.moveTo(nextPoint._view.x, this._view.scaleZero); - } - }, function(previousPoint, point) { - // If we skipped the last point, draw a line to ourselves so that the fill is nice - ctx.lineTo(point._view.x, point._view.y); - }); - } - }, this); - - // For radial scales, loop back around to the first point - if (this._loop) { - loopBackToStart(true); - } else { - //Round off the line by going to the base of the chart, back to the start, then fill. - ctx.lineTo(this._children[this._children.length - 1]._view.x, vm.scaleZero); - ctx.lineTo(this._children[0]._view.x, vm.scaleZero); - } - - ctx.fillStyle = vm.backgroundColor || Chart.defaults.global.defaultColor; - ctx.closePath(); - ctx.fill(); - } - - // Now draw the line between all the points with any borders - ctx.lineCap = vm.borderCapStyle || Chart.defaults.global.elements.line.borderCapStyle; - - // IE 9 and 10 do not support line dash - if (ctx.setLineDash) { - ctx.setLineDash(vm.borderDash || Chart.defaults.global.elements.line.borderDash); - } - - ctx.lineDashOffset = vm.borderDashOffset || Chart.defaults.global.elements.line.borderDashOffset; - ctx.lineJoin = vm.borderJoinStyle || Chart.defaults.global.elements.line.borderJoinStyle; - ctx.lineWidth = vm.borderWidth || Chart.defaults.global.elements.line.borderWidth; - ctx.strokeStyle = vm.borderColor || Chart.defaults.global.defaultColor; - ctx.beginPath(); - - helpers.each(this._children, function(point, index) { - var previous = helpers.previousItem(this._children, index); - var next = helpers.nextItem(this._children, index); - - if (index === 0) { - ctx.moveTo(point._view.x, point._view.y); - } else { - this.lineToNextPoint(previous, point, next, function(previousPoint, point, nextPoint) { - ctx.moveTo(nextPoint._view.x, nextPoint._view.y); - }, function(previousPoint, point) { - // If we skipped the last point, move up to our point preventing a line from being drawn - ctx.moveTo(point._view.x, point._view.y); - }); - } - }, this); - - if (this._loop && this._children.length > 0) { - loopBackToStart(); - } - - ctx.stroke(); - ctx.restore(); - } - }); +"use strict"; + +module.exports = function(Chart) { + + var helpers = Chart.helpers; + + Chart.defaults.global.elements.line = { + tension: 0.4, + backgroundColor: Chart.defaults.global.defaultColor, + borderWidth: 3, + borderColor: Chart.defaults.global.defaultColor, + borderCapStyle: 'butt', + borderDash: [], + borderDashOffset: 0.0, + borderJoinStyle: 'miter', + fill: true // do we fill in the area between the line and its base axis + }; + + Chart.elements.Line = Chart.Element.extend({ + lineToNextPoint: function(previousPoint, point, nextPoint, skipHandler, previousSkipHandler) { + var ctx = this._chart.ctx; + + if (point._view.skip) { + skipHandler.call(this, previousPoint, point, nextPoint); + } else if (previousPoint._view.skip) { + previousSkipHandler.call(this, previousPoint, point, nextPoint); + } else if (point._view.tension === 0) { + ctx.lineTo(point._view.x, point._view.y); + } else { + // Line between points + ctx.bezierCurveTo( + previousPoint._view.controlPointNextX, + previousPoint._view.controlPointNextY, + point._view.controlPointPreviousX, + point._view.controlPointPreviousY, + point._view.x, + point._view.y + ); + } + }, + + draw: function() { + var _this = this; + + var vm = this._view; + var ctx = this._chart.ctx; + var first = this._children[0]; + var last = this._children[this._children.length - 1]; + + function loopBackToStart(drawLineToCenter) { + if (!first._view.skip && !last._view.skip) { + // Draw a bezier line from last to first + ctx.bezierCurveTo( + last._view.controlPointNextX, + last._view.controlPointNextY, + first._view.controlPointPreviousX, + first._view.controlPointPreviousY, + first._view.x, + first._view.y + ); + } else if (drawLineToCenter) { + // Go to center + ctx.lineTo(_this._view.scaleZero.x, _this._view.scaleZero.y); + } + } + + ctx.save(); + + // If we had points and want to fill this line, do so. + if (this._children.length > 0 && vm.fill) { + // Draw the background first (so the border is always on top) + ctx.beginPath(); + + helpers.each(this._children, function(point, index) { + var previous = helpers.previousItem(this._children, index); + var next = helpers.nextItem(this._children, index); + + // First point moves to it's starting position no matter what + if (index === 0) { + if (this._loop) { + ctx.moveTo(vm.scaleZero.x, vm.scaleZero.y); + } else { + ctx.moveTo(point._view.x, vm.scaleZero); + } + + if (point._view.skip) { + if (!this._loop) { + ctx.moveTo(next._view.x, this._view.scaleZero); + } + } else { + ctx.lineTo(point._view.x, point._view.y); + } + } else { + this.lineToNextPoint(previous, point, next, function(previousPoint, point, nextPoint) { + if (this._loop) { + // Go to center + ctx.lineTo(this._view.scaleZero.x, this._view.scaleZero.y); + } else { + ctx.lineTo(previousPoint._view.x, this._view.scaleZero); + ctx.moveTo(nextPoint._view.x, this._view.scaleZero); + } + }, function(previousPoint, point) { + // If we skipped the last point, draw a line to ourselves so that the fill is nice + ctx.lineTo(point._view.x, point._view.y); + }); + } + }, this); + + // For radial scales, loop back around to the first point + if (this._loop) { + loopBackToStart(true); + } else { + //Round off the line by going to the base of the chart, back to the start, then fill. + ctx.lineTo(this._children[this._children.length - 1]._view.x, vm.scaleZero); + ctx.lineTo(this._children[0]._view.x, vm.scaleZero); + } + + ctx.fillStyle = vm.backgroundColor || Chart.defaults.global.defaultColor; + ctx.closePath(); + ctx.fill(); + } + + // Now draw the line between all the points with any borders + ctx.lineCap = vm.borderCapStyle || Chart.defaults.global.elements.line.borderCapStyle; + + // IE 9 and 10 do not support line dash + if (ctx.setLineDash) { + ctx.setLineDash(vm.borderDash || Chart.defaults.global.elements.line.borderDash); + } + + ctx.lineDashOffset = vm.borderDashOffset || Chart.defaults.global.elements.line.borderDashOffset; + ctx.lineJoin = vm.borderJoinStyle || Chart.defaults.global.elements.line.borderJoinStyle; + ctx.lineWidth = vm.borderWidth || Chart.defaults.global.elements.line.borderWidth; + ctx.strokeStyle = vm.borderColor || Chart.defaults.global.defaultColor; + ctx.beginPath(); + + helpers.each(this._children, function(point, index) { + var previous = helpers.previousItem(this._children, index); + var next = helpers.nextItem(this._children, index); + + if (index === 0) { + ctx.moveTo(point._view.x, point._view.y); + } else { + this.lineToNextPoint(previous, point, next, function(previousPoint, point, nextPoint) { + ctx.moveTo(nextPoint._view.x, nextPoint._view.y); + }, function(previousPoint, point) { + // If we skipped the last point, move up to our point preventing a line from being drawn + ctx.moveTo(point._view.x, point._view.y); + }); + } + }, this); + + if (this._loop && this._children.length > 0) { + loopBackToStart(); + } + + ctx.stroke(); + ctx.restore(); + } + }); }; },{}],36:[function(require,module,exports){ -"use strict"; - -module.exports = function(Chart) { - - var helpers = Chart.helpers; - - Chart.defaults.global.elements.point = { - radius: 3, - pointStyle: 'circle', - backgroundColor: Chart.defaults.global.defaultColor, - borderWidth: 1, - borderColor: Chart.defaults.global.defaultColor, - // Hover - hitRadius: 1, - hoverRadius: 4, - hoverBorderWidth: 1 - }; - - - Chart.elements.Point = Chart.Element.extend({ - inRange: function(mouseX, mouseY) { - var vm = this._view; - - if (vm) { - var hoverRange = vm.hitRadius + vm.radius; - return ((Math.pow(mouseX - vm.x, 2) + Math.pow(mouseY - vm.y, 2)) < Math.pow(hoverRange, 2)); - } else { - return false; - } - }, - inLabelRange: function(mouseX) { - var vm = this._view; - - if (vm) { - return (Math.pow(mouseX - vm.x, 2) < Math.pow(vm.radius + vm.hitRadius, 2)); - } else { - return false; - } - }, - tooltipPosition: function() { - var vm = this._view; - return { - x: vm.x, - y: vm.y, - padding: vm.radius + vm.borderWidth - }; - }, - draw: function() { - - var vm = this._view; - var ctx = this._chart.ctx; - - - if (vm.skip) { - return; - } - - if (typeof vm.pointStyle === 'object' && ((vm.pointStyle.toString() === '[object HTMLImageElement]') || (vm.pointStyle.toString() === '[object HTMLCanvasElement]'))) { - ctx.drawImage(vm.pointStyle, vm.x - vm.pointStyle.width / 2, vm.y - vm.pointStyle.height / 2); - return; - } - - if (!isNaN(vm.radius) && vm.radius > 0) { - - ctx.strokeStyle = vm.borderColor || Chart.defaults.global.defaultColor; - ctx.lineWidth = helpers.getValueOrDefault(vm.borderWidth, Chart.defaults.global.elements.point.borderWidth); - - ctx.fillStyle = vm.backgroundColor || Chart.defaults.global.defaultColor; - - var radius = vm.radius; - - var xOffset; - var yOffset; - - switch (vm.pointStyle) { - // Default includes circle - default: ctx.beginPath(); - ctx.arc(vm.x, vm.y, radius, 0, Math.PI * 2); - ctx.closePath(); - ctx.fill(); - break; - case 'triangle': - ctx.beginPath(); - var edgeLength = 3 * radius / Math.sqrt(3); - var height = edgeLength * Math.sqrt(3) / 2; - ctx.moveTo(vm.x - edgeLength / 2, vm.y + height / 3); - ctx.lineTo(vm.x + edgeLength / 2, vm.y + height / 3); - ctx.lineTo(vm.x, vm.y - 2 * height / 3); - ctx.closePath(); - ctx.fill(); - break; - case 'rect': - ctx.fillRect(vm.x - 1 / Math.SQRT2 * radius, vm.y - 1 / Math.SQRT2 * radius, 2 / Math.SQRT2 * radius, 2 / Math.SQRT2 * radius); - ctx.strokeRect(vm.x - 1 / Math.SQRT2 * radius, vm.y - 1 / Math.SQRT2 * radius, 2 / Math.SQRT2 * radius, 2 / Math.SQRT2 * radius); - break; - case 'rectRot': - ctx.translate(vm.x, vm.y); - ctx.rotate(Math.PI / 4); - ctx.fillRect(-1 / Math.SQRT2 * radius, -1 / Math.SQRT2 * radius, 2 / Math.SQRT2 * radius, 2 / Math.SQRT2 * radius); - ctx.strokeRect(-1 / Math.SQRT2 * radius, -1 / Math.SQRT2 * radius, 2 / Math.SQRT2 * radius, 2 / Math.SQRT2 * radius); - ctx.setTransform(1, 0, 0, 1, 0, 0); - break; - case 'cross': - ctx.beginPath(); - ctx.moveTo(vm.x, vm.y + radius); - ctx.lineTo(vm.x, vm.y - radius); - ctx.moveTo(vm.x - radius, vm.y); - ctx.lineTo(vm.x + radius, vm.y); - ctx.closePath(); - break; - case 'crossRot': - ctx.beginPath(); - xOffset = Math.cos(Math.PI / 4) * radius; - yOffset = Math.sin(Math.PI / 4) * radius; - ctx.moveTo(vm.x - xOffset, vm.y - yOffset); - ctx.lineTo(vm.x + xOffset, vm.y + yOffset); - ctx.moveTo(vm.x - xOffset, vm.y + yOffset); - ctx.lineTo(vm.x + xOffset, vm.y - yOffset); - ctx.closePath(); - break; - case 'star': - ctx.beginPath(); - ctx.moveTo(vm.x, vm.y + radius); - ctx.lineTo(vm.x, vm.y - radius); - ctx.moveTo(vm.x - radius, vm.y); - ctx.lineTo(vm.x + radius, vm.y); - xOffset = Math.cos(Math.PI / 4) * radius; - yOffset = Math.sin(Math.PI / 4) * radius; - ctx.moveTo(vm.x - xOffset, vm.y - yOffset); - ctx.lineTo(vm.x + xOffset, vm.y + yOffset); - ctx.moveTo(vm.x - xOffset, vm.y + yOffset); - ctx.lineTo(vm.x + xOffset, vm.y - yOffset); - ctx.closePath(); - break; - case 'line': - ctx.beginPath(); - ctx.moveTo(vm.x - radius, vm.y); - ctx.lineTo(vm.x + radius, vm.y); - ctx.closePath(); - break; - case 'dash': - ctx.beginPath(); - ctx.moveTo(vm.x, vm.y); - ctx.lineTo(vm.x + radius, vm.y); - ctx.closePath(); - break; - } - - ctx.stroke(); - } - } - }); +"use strict"; + +module.exports = function(Chart) { + + var helpers = Chart.helpers, + globalOpts = Chart.defaults.global; + + globalOpts.elements.point = { + radius: 3, + pointStyle: 'circle', + backgroundColor: globalOpts.defaultColor, + borderWidth: 1, + borderColor: globalOpts.defaultColor, + // Hover + hitRadius: 1, + hoverRadius: 4, + hoverBorderWidth: 1 + }; + + + Chart.elements.Point = Chart.Element.extend({ + inRange: function(mouseX, mouseY) { + var vm = this._view; + return vm ? ((Math.pow(mouseX - vm.x, 2) + Math.pow(mouseY - vm.y, 2)) < Math.pow(vm.hitRadius + vm.radius, 2)) : false; + }, + inLabelRange: function(mouseX) { + var vm = this._view; + return vm ? (Math.pow(mouseX - vm.x, 2) < Math.pow(vm.radius + vm.hitRadius, 2)) : false; + }, + tooltipPosition: function() { + var vm = this._view; + return { + x: vm.x, + y: vm.y, + padding: vm.radius + vm.borderWidth + }; + }, + draw: function() { + var vm = this._view, + x = vm.x, + y = vm.y; + var ctx = this._chart.ctx; + + if (vm.skip) { + return; + } + + var pointStyle = vm.pointStyle; + if (typeof pointStyle === 'object' && ((pointStyle.toString() === '[object HTMLImageElement]') || (pointStyle.toString() === '[object HTMLCanvasElement]'))) { + ctx.drawImage(pointStyle, x - pointStyle.width / 2, y - pointStyle.height / 2); + return; + } + + if (!isNaN(vm.radius) && vm.radius > 0) { + + ctx.strokeStyle = vm.borderColor || Chart.defaults.global.defaultColor; + ctx.lineWidth = helpers.getValueOrDefault(vm.borderWidth, Chart.defaults.global.elements.point.borderWidth); + + ctx.fillStyle = vm.backgroundColor || Chart.defaults.global.defaultColor; + + var radius = vm.radius; + + var xOffset, + yOffset; + + switch (pointStyle) { + // Default includes circle + default: + ctx.beginPath(); + ctx.arc(x, y, radius, 0, Math.PI * 2); + ctx.closePath(); + ctx.fill(); + break; + case 'triangle': + ctx.beginPath(); + var edgeLength = 3 * radius / Math.sqrt(3); + var height = edgeLength * Math.sqrt(3) / 2; + ctx.moveTo(x - edgeLength / 2, y + height / 3); + ctx.lineTo(x + edgeLength / 2, y + height / 3); + ctx.lineTo(x, y - 2 * height / 3); + ctx.closePath(); + ctx.fill(); + break; + case 'rect': + ctx.fillRect(x - 1 / Math.SQRT2 * radius, y - 1 / Math.SQRT2 * radius, 2 / Math.SQRT2 * radius, 2 / Math.SQRT2 * radius); + ctx.strokeRect(x - 1 / Math.SQRT2 * radius, y - 1 / Math.SQRT2 * radius, 2 / Math.SQRT2 * radius, 2 / Math.SQRT2 * radius); + break; + case 'rectRot': + ctx.translate(x, y); + ctx.rotate(Math.PI / 4); + ctx.fillRect(-1 / Math.SQRT2 * radius, -1 / Math.SQRT2 * radius, 2 / Math.SQRT2 * radius, 2 / Math.SQRT2 * radius); + ctx.strokeRect(-1 / Math.SQRT2 * radius, -1 / Math.SQRT2 * radius, 2 / Math.SQRT2 * radius, 2 / Math.SQRT2 * radius); + ctx.setTransform(1, 0, 0, 1, 0, 0); + break; + case 'cross': + ctx.beginPath(); + ctx.moveTo(x, y + radius); + ctx.lineTo(x, y - radius); + ctx.moveTo(x - radius, y); + ctx.lineTo(x + radius, y); + ctx.closePath(); + break; + case 'crossRot': + ctx.beginPath(); + xOffset = Math.cos(Math.PI / 4) * radius; + yOffset = Math.sin(Math.PI / 4) * radius; + ctx.moveTo(x - xOffset, y - yOffset); + ctx.lineTo(x + xOffset, y + yOffset); + ctx.moveTo(x - xOffset, y + yOffset); + ctx.lineTo(x + xOffset, y - yOffset); + ctx.closePath(); + break; + case 'star': + ctx.beginPath(); + ctx.moveTo(x, y + radius); + ctx.lineTo(x, y - radius); + ctx.moveTo(x - radius, y); + ctx.lineTo(x + radius, y); + xOffset = Math.cos(Math.PI / 4) * radius; + yOffset = Math.sin(Math.PI / 4) * radius; + ctx.moveTo(x - xOffset, y - yOffset); + ctx.lineTo(x + xOffset, y + yOffset); + ctx.moveTo(x - xOffset, y + yOffset); + ctx.lineTo(x + xOffset, y - yOffset); + ctx.closePath(); + break; + case 'line': + ctx.beginPath(); + ctx.moveTo(x - radius, y); + ctx.lineTo(x + radius, y); + ctx.closePath(); + break; + case 'dash': + ctx.beginPath(); + ctx.moveTo(x, y); + ctx.lineTo(x + radius, y); + ctx.closePath(); + break; + } + + ctx.stroke(); + } + } + }); }; },{}],37:[function(require,module,exports){ -"use strict"; - -module.exports = function(Chart) { - - var helpers = Chart.helpers; - - Chart.defaults.global.elements.rectangle = { - backgroundColor: Chart.defaults.global.defaultColor, - borderWidth: 0, - borderColor: Chart.defaults.global.defaultColor, - borderSkipped: 'bottom' - }; - - Chart.elements.Rectangle = Chart.Element.extend({ - draw: function() { - - var ctx = this._chart.ctx; - var vm = this._view; - - var halfWidth = vm.width / 2, - leftX = vm.x - halfWidth, - rightX = vm.x + halfWidth, - top = vm.base - (vm.base - vm.y), - halfStroke = vm.borderWidth / 2; - - // Canvas doesn't allow us to stroke inside the width so we can - // adjust the sizes to fit if we're setting a stroke on the line - if (vm.borderWidth) { - leftX += halfStroke; - rightX -= halfStroke; - top += halfStroke; - } - - ctx.beginPath(); - - ctx.fillStyle = vm.backgroundColor; - ctx.strokeStyle = vm.borderColor; - ctx.lineWidth = vm.borderWidth; - - // Corner points, from bottom-left to bottom-right clockwise - // | 1 2 | - // | 0 3 | - var corners = [ - [leftX, vm.base], - [leftX, top], - [rightX, top], - [rightX, vm.base] - ]; - - // Find first (starting) corner with fallback to 'bottom' - var borders = ['bottom', 'left', 'top', 'right']; - var startCorner = borders.indexOf(vm.borderSkipped, 0); - if (startCorner === -1) - startCorner = 0; - - function cornerAt(index) { - return corners[(startCorner + index) % 4]; - } - - // Draw rectangle from 'startCorner' - ctx.moveTo.apply(ctx, cornerAt(0)); - for (var i = 1; i < 4; i++) - ctx.lineTo.apply(ctx, cornerAt(i)); - - ctx.fill(); - if (vm.borderWidth) { - ctx.stroke(); - } - }, - height: function() { - var vm = this._view; - return vm.base - vm.y; - }, - inRange: function(mouseX, mouseY) { - var vm = this._view; - var inRange = false; - - if (vm) { - if (vm.y < vm.base) { - inRange = (mouseX >= vm.x - vm.width / 2 && mouseX <= vm.x + vm.width / 2) && (mouseY >= vm.y && mouseY <= vm.base); - } else { - inRange = (mouseX >= vm.x - vm.width / 2 && mouseX <= vm.x + vm.width / 2) && (mouseY >= vm.base && mouseY <= vm.y); - } - } - - return inRange; - }, - inLabelRange: function(mouseX) { - var vm = this._view; - - if (vm) { - return (mouseX >= vm.x - vm.width / 2 && mouseX <= vm.x + vm.width / 2); - } else { - return false; - } - }, - tooltipPosition: function() { - var vm = this._view; - return { - x: vm.x, - y: vm.y - }; - } - }); - +"use strict"; + +module.exports = function(Chart) { + + var helpers = Chart.helpers, + globalOpts = Chart.defaults.global; + + globalOpts.elements.rectangle = { + backgroundColor: globalOpts.defaultColor, + borderWidth: 0, + borderColor: globalOpts.defaultColor, + borderSkipped: 'bottom' + }; + + Chart.elements.Rectangle = Chart.Element.extend({ + draw: function() { + var ctx = this._chart.ctx; + var vm = this._view; + + var halfWidth = vm.width / 2, + leftX = vm.x - halfWidth, + rightX = vm.x + halfWidth, + top = vm.base - (vm.base - vm.y), + halfStroke = vm.borderWidth / 2; + + // Canvas doesn't allow us to stroke inside the width so we can + // adjust the sizes to fit if we're setting a stroke on the line + if (vm.borderWidth) { + leftX += halfStroke; + rightX -= halfStroke; + top += halfStroke; + } + + ctx.beginPath(); + ctx.fillStyle = vm.backgroundColor; + ctx.strokeStyle = vm.borderColor; + ctx.lineWidth = vm.borderWidth; + + // Corner points, from bottom-left to bottom-right clockwise + // | 1 2 | + // | 0 3 | + var corners = [ + [leftX, vm.base], + [leftX, top], + [rightX, top], + [rightX, vm.base] + ]; + + // Find first (starting) corner with fallback to 'bottom' + var borders = ['bottom', 'left', 'top', 'right']; + var startCorner = borders.indexOf(vm.borderSkipped, 0); + if (startCorner === -1) + startCorner = 0; + + function cornerAt(index) { + return corners[(startCorner + index) % 4]; + } + + // Draw rectangle from 'startCorner' + ctx.moveTo.apply(ctx, cornerAt(0)); + for (var i = 1; i < 4; i++) + ctx.lineTo.apply(ctx, cornerAt(i)); + + ctx.fill(); + if (vm.borderWidth) { + ctx.stroke(); + } + }, + height: function() { + var vm = this._view; + return vm.base - vm.y; + }, + inRange: function(mouseX, mouseY) { + var vm = this._view; + return vm ? + (vm.y < vm.base ? + (mouseX >= vm.x - vm.width / 2 && mouseX <= vm.x + vm.width / 2) && (mouseY >= vm.y && mouseY <= vm.base) : + (mouseX >= vm.x - vm.width / 2 && mouseX <= vm.x + vm.width / 2) && (mouseY >= vm.base && mouseY <= vm.y)) : + false; + }, + inLabelRange: function(mouseX) { + var vm = this._view; + return vm ? (mouseX >= vm.x - vm.width / 2 && mouseX <= vm.x + vm.width / 2) : false; + }, + tooltipPosition: function() { + var vm = this._view; + return { + x: vm.x, + y: vm.y + }; + } + }); + }; },{}],38:[function(require,module,exports){ -"use strict"; - -module.exports = function(Chart) { - - var helpers = Chart.helpers; - // Default config for a category scale - var defaultConfig = { - position: "bottom" - }; - - var DatasetScale = Chart.Scale.extend({ - // Implement this so that - determineDataLimits: function() { - this.minIndex = 0; - this.maxIndex = this.chart.data.labels.length - 1; - var findIndex; - - if (this.options.ticks.min !== undefined) { - // user specified min value - findIndex = helpers.indexOf(this.chart.data.labels, this.options.ticks.min); - this.minIndex = findIndex !== -1 ? findIndex : this.minIndex; - } - - if (this.options.ticks.max !== undefined) { - // user specified max value - findIndex = helpers.indexOf(this.chart.data.labels, this.options.ticks.max); - this.maxIndex = findIndex !== -1 ? findIndex : this.maxIndex; - } - - this.min = this.chart.data.labels[this.minIndex]; - this.max = this.chart.data.labels[this.maxIndex]; - }, - - buildTicks: function(index) { - // If we are viewing some subset of labels, slice the original array - this.ticks = (this.minIndex === 0 && this.maxIndex === this.chart.data.labels.length - 1) ? this.chart.data.labels : this.chart.data.labels.slice(this.minIndex, this.maxIndex + 1); - }, - - getLabelForIndex: function(index, datasetIndex) { - return this.ticks[index]; - }, - - // Used to get data value locations. Value can either be an index or a numerical value - getPixelForValue: function(value, index, datasetIndex, includeOffset) { - // 1 is added because we need the length but we have the indexes - var offsetAmt = Math.max((this.maxIndex + 1 - this.minIndex - ((this.options.gridLines.offsetGridLines) ? 0 : 1)), 1); - - if (this.isHorizontal()) { - var innerWidth = this.width - (this.paddingLeft + this.paddingRight); - var valueWidth = innerWidth / offsetAmt; - var widthOffset = (valueWidth * (index - this.minIndex)) + this.paddingLeft; - - if (this.options.gridLines.offsetGridLines && includeOffset) { - widthOffset += (valueWidth / 2); - } - - return this.left + Math.round(widthOffset); - } else { - var innerHeight = this.height - (this.paddingTop + this.paddingBottom); - var valueHeight = innerHeight / offsetAmt; - var heightOffset = (valueHeight * (index - this.minIndex)) + this.paddingTop; - - if (this.options.gridLines.offsetGridLines && includeOffset) { - heightOffset += (valueHeight / 2); - } - - return this.top + Math.round(heightOffset); - } - }, - getPixelForTick: function(index, includeOffset) { - return this.getPixelForValue(this.ticks[index], index + this.minIndex, null, includeOffset); - }, - getValueForPixel: function(pixel) { - var value -; var offsetAmt = Math.max((this.ticks.length - ((this.options.gridLines.offsetGridLines) ? 0 : 1)), 1); - var horz = this.isHorizontal(); - var innerDimension = horz ? this.width - (this.paddingLeft + this.paddingRight) : this.height - (this.paddingTop + this.paddingBottom); - var valueDimension = innerDimension / offsetAmt; - - if (this.options.gridLines.offsetGridLines) { - pixel -= (valueDimension / 2); - } - pixel -= horz ? this.paddingLeft : this.paddingTop; - - if (pixel <= 0) { - value = 0; - } else { - value = Math.round(pixel / valueDimension); - } - - return value; - } - }); - - Chart.scaleService.registerScaleType("category", DatasetScale, defaultConfig); - +"use strict"; + +module.exports = function(Chart) { + + var helpers = Chart.helpers; + // Default config for a category scale + var defaultConfig = { + position: "bottom" + }; + + var DatasetScale = Chart.Scale.extend({ + // Implement this so that + determineDataLimits: function() { + this.minIndex = 0; + this.maxIndex = this.chart.data.labels.length - 1; + var findIndex; + + if (this.options.ticks.min !== undefined) { + // user specified min value + findIndex = helpers.indexOf(this.chart.data.labels, this.options.ticks.min); + this.minIndex = findIndex !== -1 ? findIndex : this.minIndex; + } + + if (this.options.ticks.max !== undefined) { + // user specified max value + findIndex = helpers.indexOf(this.chart.data.labels, this.options.ticks.max); + this.maxIndex = findIndex !== -1 ? findIndex : this.maxIndex; + } + + this.min = this.chart.data.labels[this.minIndex]; + this.max = this.chart.data.labels[this.maxIndex]; + }, + + buildTicks: function(index) { + // If we are viewing some subset of labels, slice the original array + this.ticks = (this.minIndex === 0 && this.maxIndex === this.chart.data.labels.length - 1) ? this.chart.data.labels : this.chart.data.labels.slice(this.minIndex, this.maxIndex + 1); + }, + + getLabelForIndex: function(index, datasetIndex) { + return this.ticks[index]; + }, + + // Used to get data value locations. Value can either be an index or a numerical value + getPixelForValue: function(value, index, datasetIndex, includeOffset) { + // 1 is added because we need the length but we have the indexes + var offsetAmt = Math.max((this.maxIndex + 1 - this.minIndex - ((this.options.gridLines.offsetGridLines) ? 0 : 1)), 1); + + if (this.isHorizontal()) { + var innerWidth = this.width - (this.paddingLeft + this.paddingRight); + var valueWidth = innerWidth / offsetAmt; + var widthOffset = (valueWidth * (index - this.minIndex)) + this.paddingLeft; + + if (this.options.gridLines.offsetGridLines && includeOffset) { + widthOffset += (valueWidth / 2); + } + + return this.left + Math.round(widthOffset); + } else { + var innerHeight = this.height - (this.paddingTop + this.paddingBottom); + var valueHeight = innerHeight / offsetAmt; + var heightOffset = (valueHeight * (index - this.minIndex)) + this.paddingTop; + + if (this.options.gridLines.offsetGridLines && includeOffset) { + heightOffset += (valueHeight / 2); + } + + return this.top + Math.round(heightOffset); + } + }, + getPixelForTick: function(index, includeOffset) { + return this.getPixelForValue(this.ticks[index], index + this.minIndex, null, includeOffset); + }, + getValueForPixel: function(pixel) { + var value +; var offsetAmt = Math.max((this.ticks.length - ((this.options.gridLines.offsetGridLines) ? 0 : 1)), 1); + var horz = this.isHorizontal(); + var innerDimension = horz ? this.width - (this.paddingLeft + this.paddingRight) : this.height - (this.paddingTop + this.paddingBottom); + var valueDimension = innerDimension / offsetAmt; + + if (this.options.gridLines.offsetGridLines) { + pixel -= (valueDimension / 2); + } + pixel -= horz ? this.paddingLeft : this.paddingTop; + + if (pixel <= 0) { + value = 0; + } else { + value = Math.round(pixel / valueDimension); + } + + return value; + } + }); + + Chart.scaleService.registerScaleType("category", DatasetScale, defaultConfig); + }; },{}],39:[function(require,module,exports){ -"use strict"; - -module.exports = function(Chart) { - - var helpers = Chart.helpers; - - var defaultConfig = { - position: "left", - ticks: { - callback: function(tickValue, index, ticks) { - // If we have lots of ticks, don't use the ones - var delta = ticks.length > 3 ? ticks[2] - ticks[1] : ticks[1] - ticks[0]; - - // If we have a number like 2.5 as the delta, figure out how many decimal places we need - if (Math.abs(delta) > 1) { - if (tickValue !== Math.floor(tickValue)) { - // not an integer - delta = tickValue - Math.floor(tickValue); - } - } - - var logDelta = helpers.log10(Math.abs(delta)); - var tickString = ''; - - if (tickValue !== 0) { - var numDecimal = -1 * Math.floor(logDelta); - numDecimal = Math.max(Math.min(numDecimal, 20), 0); // toFixed has a max of 20 decimal places - tickString = tickValue.toFixed(numDecimal); - } else { - tickString = '0'; // never show decimal places for 0 - } - - return tickString; - } - } - }; - - var LinearScale = Chart.Scale.extend({ - determineDataLimits: function() { - // First Calculate the range - this.min = null; - this.max = null; - - if (this.options.stacked) { - var valuesPerType = {}; - var hasPositiveValues = false; - var hasNegativeValues = false; - - helpers.each(this.chart.data.datasets, function(dataset, datasetIndex) { - var meta = this.chart.getDatasetMeta(datasetIndex); - if (valuesPerType[meta.type] === undefined) { - valuesPerType[meta.type] = { - positiveValues: [], - negativeValues: [] - }; - } - - // Store these per type - var positiveValues = valuesPerType[meta.type].positiveValues; - var negativeValues = valuesPerType[meta.type].negativeValues; - - if (this.chart.isDatasetVisible(datasetIndex) && (this.isHorizontal() ? meta.xAxisID === this.id : meta.yAxisID === this.id)) { - helpers.each(dataset.data, function(rawValue, index) { - var value = +this.getRightValue(rawValue); - if (isNaN(value) || meta.data[index].hidden) { - return; - } - - positiveValues[index] = positiveValues[index] || 0; - negativeValues[index] = negativeValues[index] || 0; - - if (this.options.relativePoints) { - positiveValues[index] = 100; - } else { - if (value < 0) { - hasNegativeValues = true; - negativeValues[index] += value; - } else { - hasPositiveValues = true; - positiveValues[index] += value; - } - } - }, this); - } - }, this); - - helpers.each(valuesPerType, function(valuesForType) { - var values = valuesForType.positiveValues.concat(valuesForType.negativeValues); - var minVal = helpers.min(values); - var maxVal = helpers.max(values); - this.min = this.min === null ? minVal : Math.min(this.min, minVal); - this.max = this.max === null ? maxVal : Math.max(this.max, maxVal); - }, this); - - } else { - helpers.each(this.chart.data.datasets, function(dataset, datasetIndex) { - var meta = this.chart.getDatasetMeta(datasetIndex); - if (this.chart.isDatasetVisible(datasetIndex) && (this.isHorizontal() ? meta.xAxisID === this.id : meta.yAxisID === this.id)) { - helpers.each(dataset.data, function(rawValue, index) { - var value = +this.getRightValue(rawValue); - if (isNaN(value) || meta.data[index].hidden) { - return; - } - - if (this.min === null) { - this.min = value; - } else if (value < this.min) { - this.min = value; - } - - if (this.max === null) { - this.max = value; - } else if (value > this.max) { - this.max = value; - } - }, this); - } - }, this); - } - - // If we are forcing it to begin at 0, but 0 will already be rendered on the chart, - // do nothing since that would make the chart weird. If the user really wants a weird chart - // axis, they can manually override it - if (this.options.ticks.beginAtZero) { - var minSign = helpers.sign(this.min); - var maxSign = helpers.sign(this.max); - - if (minSign < 0 && maxSign < 0) { - // move the top up to 0 - this.max = 0; - } else if (minSign > 0 && maxSign > 0) { - // move the botttom down to 0 - this.min = 0; - } - } - - if (this.options.ticks.min !== undefined) { - this.min = this.options.ticks.min; - } else if (this.options.ticks.suggestedMin !== undefined) { - this.min = Math.min(this.min, this.options.ticks.suggestedMin); - } - - if (this.options.ticks.max !== undefined) { - this.max = this.options.ticks.max; - } else if (this.options.ticks.suggestedMax !== undefined) { - this.max = Math.max(this.max, this.options.ticks.suggestedMax); - } - - if (this.min === this.max) { - this.min--; - this.max++; - } - }, - buildTicks: function() { - - // Then calulate the ticks - this.ticks = []; - - // Figure out what the max number of ticks we can support it is based on the size of - // the axis area. For now, we say that the minimum tick spacing in pixels must be 50 - // We also limit the maximum number of ticks to 11 which gives a nice 10 squares on - // the graph - - var maxTicks; - - if (this.isHorizontal()) { - maxTicks = Math.min(this.options.ticks.maxTicksLimit ? this.options.ticks.maxTicksLimit : 11, Math.ceil(this.width / 50)); - } else { - // The factor of 2 used to scale the font size has been experimentally determined. - var tickFontSize = helpers.getValueOrDefault(this.options.ticks.fontSize, Chart.defaults.global.defaultFontSize); - maxTicks = Math.min(this.options.ticks.maxTicksLimit ? this.options.ticks.maxTicksLimit : 11, Math.ceil(this.height / (2 * tickFontSize))); - } - - // Make sure we always have at least 2 ticks - maxTicks = Math.max(2, maxTicks); - - // To get a "nice" value for the tick spacing, we will use the appropriately named - // "nice number" algorithm. See http://stackoverflow.com/questions/8506881/nice-label-algorithm-for-charts-with-minimum-ticks - // for details. - - var spacing; - var fixedStepSizeSet = (this.options.ticks.fixedStepSize && this.options.ticks.fixedStepSize > 0) || (this.options.ticks.stepSize && this.options.ticks.stepSize > 0); - if (fixedStepSizeSet) { - spacing = helpers.getValueOrDefault(this.options.ticks.fixedStepSize, this.options.ticks.stepSize); - } else { - var niceRange = helpers.niceNum(this.max - this.min, false); - spacing = helpers.niceNum(niceRange / (maxTicks - 1), true); - } - var niceMin = Math.floor(this.min / spacing) * spacing; - var niceMax = Math.ceil(this.max / spacing) * spacing; - var numSpaces = (niceMax - niceMin) / spacing; - - // If very close to our rounded value, use it. - if (helpers.almostEquals(numSpaces, Math.round(numSpaces), spacing / 1000)) { - numSpaces = Math.round(numSpaces); - } else { - numSpaces = Math.ceil(numSpaces); - } - - // Put the values into the ticks array - this.ticks.push(this.options.ticks.min !== undefined ? this.options.ticks.min : niceMin); - for (var j = 1; j < numSpaces; ++j) { - this.ticks.push(niceMin + (j * spacing)); - } - this.ticks.push(this.options.ticks.max !== undefined ? this.options.ticks.max : niceMax); - - if (this.options.position === "left" || this.options.position === "right") { - // We are in a vertical orientation. The top value is the highest. So reverse the array - this.ticks.reverse(); - } - - // At this point, we need to update our max and min given the tick values since we have expanded the - // range of the scale - this.max = helpers.max(this.ticks); - this.min = helpers.min(this.ticks); - - if (this.options.ticks.reverse) { - this.ticks.reverse(); - - this.start = this.max; - this.end = this.min; - } else { - this.start = this.min; - this.end = this.max; - } - }, - getLabelForIndex: function(index, datasetIndex) { - return +this.getRightValue(this.chart.data.datasets[datasetIndex].data[index]); - }, - convertTicksToLabels: function() { - this.ticksAsNumbers = this.ticks.slice(); - this.zeroLineIndex = this.ticks.indexOf(0); - - Chart.Scale.prototype.convertTicksToLabels.call(this); - }, - // Utils - getPixelForValue: function(value, index, datasetIndex, includeOffset) { - // This must be called after fit has been run so that - // this.left, this.top, this.right, and this.bottom have been defined - var rightValue = +this.getRightValue(value); - var pixel; - var range = this.end - this.start; - - if (this.isHorizontal()) { - var innerWidth = this.width - (this.paddingLeft + this.paddingRight); - pixel = this.left + (innerWidth / range * (rightValue - this.start)); - return Math.round(pixel + this.paddingLeft); - } else { - var innerHeight = this.height - (this.paddingTop + this.paddingBottom); - pixel = (this.bottom - this.paddingBottom) - (innerHeight / range * (rightValue - this.start)); - return Math.round(pixel); - } - }, - getValueForPixel: function(pixel) { - var offset; - - if (this.isHorizontal()) { - var innerWidth = this.width - (this.paddingLeft + this.paddingRight); - offset = (pixel - this.left - this.paddingLeft) / innerWidth; - } else { - var innerHeight = this.height - (this.paddingTop + this.paddingBottom); - offset = (this.bottom - this.paddingBottom - pixel) / innerHeight; - } - - return this.start + ((this.end - this.start) * offset); - }, - getPixelForTick: function(index, includeOffset) { - return this.getPixelForValue(this.ticksAsNumbers[index], null, null, includeOffset); - } - }); - Chart.scaleService.registerScaleType("linear", LinearScale, defaultConfig); - +"use strict"; + +module.exports = function(Chart) { + + var helpers = Chart.helpers; + + var defaultConfig = { + position: "left", + ticks: { + callback: function(tickValue, index, ticks) { + // If we have lots of ticks, don't use the ones + var delta = ticks.length > 3 ? ticks[2] - ticks[1] : ticks[1] - ticks[0]; + + // If we have a number like 2.5 as the delta, figure out how many decimal places we need + if (Math.abs(delta) > 1) { + if (tickValue !== Math.floor(tickValue)) { + // not an integer + delta = tickValue - Math.floor(tickValue); + } + } + + var logDelta = helpers.log10(Math.abs(delta)); + var tickString = ''; + + if (tickValue !== 0) { + var numDecimal = -1 * Math.floor(logDelta); + numDecimal = Math.max(Math.min(numDecimal, 20), 0); // toFixed has a max of 20 decimal places + tickString = tickValue.toFixed(numDecimal); + } else { + tickString = '0'; // never show decimal places for 0 + } + + return tickString; + } + } + }; + + var LinearScale = Chart.Scale.extend({ + determineDataLimits: function() { + // First Calculate the range + this.min = null; + this.max = null; + + if (this.options.stacked) { + var valuesPerType = {}; + var hasPositiveValues = false; + var hasNegativeValues = false; + + helpers.each(this.chart.data.datasets, function(dataset, datasetIndex) { + var meta = this.chart.getDatasetMeta(datasetIndex); + if (valuesPerType[meta.type] === undefined) { + valuesPerType[meta.type] = { + positiveValues: [], + negativeValues: [] + }; + } + + // Store these per type + var positiveValues = valuesPerType[meta.type].positiveValues; + var negativeValues = valuesPerType[meta.type].negativeValues; + + if (this.chart.isDatasetVisible(datasetIndex) && (this.isHorizontal() ? meta.xAxisID === this.id : meta.yAxisID === this.id)) { + helpers.each(dataset.data, function(rawValue, index) { + var value = +this.getRightValue(rawValue); + if (isNaN(value) || meta.data[index].hidden) { + return; + } + + positiveValues[index] = positiveValues[index] || 0; + negativeValues[index] = negativeValues[index] || 0; + + if (this.options.relativePoints) { + positiveValues[index] = 100; + } else { + if (value < 0) { + hasNegativeValues = true; + negativeValues[index] += value; + } else { + hasPositiveValues = true; + positiveValues[index] += value; + } + } + }, this); + } + }, this); + + helpers.each(valuesPerType, function(valuesForType) { + var values = valuesForType.positiveValues.concat(valuesForType.negativeValues); + var minVal = helpers.min(values); + var maxVal = helpers.max(values); + this.min = this.min === null ? minVal : Math.min(this.min, minVal); + this.max = this.max === null ? maxVal : Math.max(this.max, maxVal); + }, this); + + } else { + helpers.each(this.chart.data.datasets, function(dataset, datasetIndex) { + var meta = this.chart.getDatasetMeta(datasetIndex); + if (this.chart.isDatasetVisible(datasetIndex) && (this.isHorizontal() ? meta.xAxisID === this.id : meta.yAxisID === this.id)) { + helpers.each(dataset.data, function(rawValue, index) { + var value = +this.getRightValue(rawValue); + if (isNaN(value) || meta.data[index].hidden) { + return; + } + + if (this.min === null) { + this.min = value; + } else if (value < this.min) { + this.min = value; + } + + if (this.max === null) { + this.max = value; + } else if (value > this.max) { + this.max = value; + } + }, this); + } + }, this); + } + + // If we are forcing it to begin at 0, but 0 will already be rendered on the chart, + // do nothing since that would make the chart weird. If the user really wants a weird chart + // axis, they can manually override it + if (this.options.ticks.beginAtZero) { + var minSign = helpers.sign(this.min); + var maxSign = helpers.sign(this.max); + + if (minSign < 0 && maxSign < 0) { + // move the top up to 0 + this.max = 0; + } else if (minSign > 0 && maxSign > 0) { + // move the botttom down to 0 + this.min = 0; + } + } + + if (this.options.ticks.min !== undefined) { + this.min = this.options.ticks.min; + } else if (this.options.ticks.suggestedMin !== undefined) { + this.min = Math.min(this.min, this.options.ticks.suggestedMin); + } + + if (this.options.ticks.max !== undefined) { + this.max = this.options.ticks.max; + } else if (this.options.ticks.suggestedMax !== undefined) { + this.max = Math.max(this.max, this.options.ticks.suggestedMax); + } + + if (this.min === this.max) { + this.max++; + + if (!this.options.ticks.beginAtZero) { + this.min--; + } + } + }, + buildTicks: function() { + + // Then calulate the ticks + this.ticks = []; + + // Figure out what the max number of ticks we can support it is based on the size of + // the axis area. For now, we say that the minimum tick spacing in pixels must be 50 + // We also limit the maximum number of ticks to 11 which gives a nice 10 squares on + // the graph + + var maxTicks; + + if (this.isHorizontal()) { + maxTicks = Math.min(this.options.ticks.maxTicksLimit ? this.options.ticks.maxTicksLimit : 11, Math.ceil(this.width / 50)); + } else { + // The factor of 2 used to scale the font size has been experimentally determined. + var tickFontSize = helpers.getValueOrDefault(this.options.ticks.fontSize, Chart.defaults.global.defaultFontSize); + maxTicks = Math.min(this.options.ticks.maxTicksLimit ? this.options.ticks.maxTicksLimit : 11, Math.ceil(this.height / (2 * tickFontSize))); + } + + // Make sure we always have at least 2 ticks + maxTicks = Math.max(2, maxTicks); + + // To get a "nice" value for the tick spacing, we will use the appropriately named + // "nice number" algorithm. See http://stackoverflow.com/questions/8506881/nice-label-algorithm-for-charts-with-minimum-ticks + // for details. + + var spacing; + var fixedStepSizeSet = (this.options.ticks.fixedStepSize && this.options.ticks.fixedStepSize > 0) || (this.options.ticks.stepSize && this.options.ticks.stepSize > 0); + if (fixedStepSizeSet) { + spacing = helpers.getValueOrDefault(this.options.ticks.fixedStepSize, this.options.ticks.stepSize); + } else { + var niceRange = helpers.niceNum(this.max - this.min, false); + spacing = helpers.niceNum(niceRange / (maxTicks - 1), true); + } + var niceMin = Math.floor(this.min / spacing) * spacing; + var niceMax = Math.ceil(this.max / spacing) * spacing; + var numSpaces = (niceMax - niceMin) / spacing; + + // If very close to our rounded value, use it. + if (helpers.almostEquals(numSpaces, Math.round(numSpaces), spacing / 1000)) { + numSpaces = Math.round(numSpaces); + } else { + numSpaces = Math.ceil(numSpaces); + } + + // Put the values into the ticks array + this.ticks.push(this.options.ticks.min !== undefined ? this.options.ticks.min : niceMin); + for (var j = 1; j < numSpaces; ++j) { + this.ticks.push(niceMin + (j * spacing)); + } + this.ticks.push(this.options.ticks.max !== undefined ? this.options.ticks.max : niceMax); + + if (this.options.position === "left" || this.options.position === "right") { + // We are in a vertical orientation. The top value is the highest. So reverse the array + this.ticks.reverse(); + } + + // At this point, we need to update our max and min given the tick values since we have expanded the + // range of the scale + this.max = helpers.max(this.ticks); + this.min = helpers.min(this.ticks); + + if (this.options.ticks.reverse) { + this.ticks.reverse(); + + this.start = this.max; + this.end = this.min; + } else { + this.start = this.min; + this.end = this.max; + } + }, + getLabelForIndex: function(index, datasetIndex) { + return +this.getRightValue(this.chart.data.datasets[datasetIndex].data[index]); + }, + convertTicksToLabels: function() { + this.ticksAsNumbers = this.ticks.slice(); + this.zeroLineIndex = this.ticks.indexOf(0); + + Chart.Scale.prototype.convertTicksToLabels.call(this); + }, + // Utils + getPixelForValue: function(value, index, datasetIndex, includeOffset) { + // This must be called after fit has been run so that + // this.left, this.top, this.right, and this.bottom have been defined + var rightValue = +this.getRightValue(value); + var pixel; + var range = this.end - this.start; + + if (this.isHorizontal()) { + var innerWidth = this.width - (this.paddingLeft + this.paddingRight); + pixel = this.left + (innerWidth / range * (rightValue - this.start)); + return Math.round(pixel + this.paddingLeft); + } else { + var innerHeight = this.height - (this.paddingTop + this.paddingBottom); + pixel = (this.bottom - this.paddingBottom) - (innerHeight / range * (rightValue - this.start)); + return Math.round(pixel); + } + }, + getValueForPixel: function(pixel) { + var offset; + + if (this.isHorizontal()) { + var innerWidth = this.width - (this.paddingLeft + this.paddingRight); + offset = (pixel - this.left - this.paddingLeft) / innerWidth; + } else { + var innerHeight = this.height - (this.paddingTop + this.paddingBottom); + offset = (this.bottom - this.paddingBottom - pixel) / innerHeight; + } + + return this.start + ((this.end - this.start) * offset); + }, + getPixelForTick: function(index, includeOffset) { + return this.getPixelForValue(this.ticksAsNumbers[index], null, null, includeOffset); + } + }); + Chart.scaleService.registerScaleType("linear", LinearScale, defaultConfig); + }; },{}],40:[function(require,module,exports){ -"use strict"; - -module.exports = function(Chart) { - - var helpers = Chart.helpers; - - var defaultConfig = { - position: "left", - - // label settings - ticks: { - callback: function(value, index, arr) { - var remain = value / (Math.pow(10, Math.floor(Chart.helpers.log10(value)))); - - if (remain === 1 || remain === 2 || remain === 5 || index === 0 || index === arr.length - 1) { - return value.toExponential(); - } else { - return ''; - } - } - } - }; - - var LogarithmicScale = Chart.Scale.extend({ - determineDataLimits: function() { - // Calculate Range - this.min = null; - this.max = null; - - if (this.options.stacked) { - var valuesPerType = {}; - - helpers.each(this.chart.data.datasets, function(dataset, datasetIndex) { - var meta = this.chart.getDatasetMeta(datasetIndex); - if (this.chart.isDatasetVisible(datasetIndex) && (this.isHorizontal() ? meta.xAxisID === this.id : meta.yAxisID === this.id)) { - if (valuesPerType[meta.type] === undefined) { - valuesPerType[meta.type] = []; - } - - helpers.each(dataset.data, function(rawValue, index) { - var values = valuesPerType[meta.type]; - var value = +this.getRightValue(rawValue); - if (isNaN(value) || meta.data[index].hidden) { - return; - } - - values[index] = values[index] || 0; - - if (this.options.relativePoints) { - values[index] = 100; - } else { - // Don't need to split positive and negative since the log scale can't handle a 0 crossing - values[index] += value; - } - }, this); - } - }, this); - - helpers.each(valuesPerType, function(valuesForType) { - var minVal = helpers.min(valuesForType); - var maxVal = helpers.max(valuesForType); - this.min = this.min === null ? minVal : Math.min(this.min, minVal); - this.max = this.max === null ? maxVal : Math.max(this.max, maxVal); - }, this); - - } else { - helpers.each(this.chart.data.datasets, function(dataset, datasetIndex) { - var meta = this.chart.getDatasetMeta(datasetIndex); - if (this.chart.isDatasetVisible(datasetIndex) && (this.isHorizontal() ? meta.xAxisID === this.id : meta.yAxisID === this.id)) { - helpers.each(dataset.data, function(rawValue, index) { - var value = +this.getRightValue(rawValue); - if (isNaN(value) || meta.data[index].hidden) { - return; - } - - if (this.min === null) { - this.min = value; - } else if (value < this.min) { - this.min = value; - } - - if (this.max === null) { - this.max = value; - } else if (value > this.max) { - this.max = value; - } - }, this); - } - }, this); - } - - this.min = this.options.ticks.min !== undefined ? this.options.ticks.min : this.min; - this.max = this.options.ticks.max !== undefined ? this.options.ticks.max : this.max; - - if (this.min === this.max) { - if (this.min !== 0 && this.min !== null) { - this.min = Math.pow(10, Math.floor(helpers.log10(this.min)) - 1); - this.max = Math.pow(10, Math.floor(helpers.log10(this.max)) + 1); - } else { - this.min = 1; - this.max = 10; - } - } - }, - buildTicks: function() { - // Reset the ticks array. Later on, we will draw a grid line at these positions - // The array simply contains the numerical value of the spots where ticks will be - this.ticks = []; - - // Figure out what the max number of ticks we can support it is based on the size of - // the axis area. For now, we say that the minimum tick spacing in pixels must be 50 - // We also limit the maximum number of ticks to 11 which gives a nice 10 squares on - // the graph - - var tickVal = this.options.ticks.min !== undefined ? this.options.ticks.min : Math.pow(10, Math.floor(helpers.log10(this.min))); - - while (tickVal < this.max) { - this.ticks.push(tickVal); - - var exp = Math.floor(helpers.log10(tickVal)); - var significand = Math.floor(tickVal / Math.pow(10, exp)) + 1; - - if (significand === 10) { - significand = 1; - ++exp; - } - - tickVal = significand * Math.pow(10, exp); - } - - var lastTick = this.options.ticks.max !== undefined ? this.options.ticks.max : tickVal; - this.ticks.push(lastTick); - - if (this.options.position === "left" || this.options.position === "right") { - // We are in a vertical orientation. The top value is the highest. So reverse the array - this.ticks.reverse(); - } - - // At this point, we need to update our max and min given the tick values since we have expanded the - // range of the scale - this.max = helpers.max(this.ticks); - this.min = helpers.min(this.ticks); - - if (this.options.ticks.reverse) { - this.ticks.reverse(); - - this.start = this.max; - this.end = this.min; - } else { - this.start = this.min; - this.end = this.max; - } - }, - convertTicksToLabels: function() { - this.tickValues = this.ticks.slice(); - - Chart.Scale.prototype.convertTicksToLabels.call(this); - }, - // Get the correct tooltip label - getLabelForIndex: function(index, datasetIndex) { - return +this.getRightValue(this.chart.data.datasets[datasetIndex].data[index]); - }, - getPixelForTick: function(index, includeOffset) { - return this.getPixelForValue(this.tickValues[index], null, null, includeOffset); - }, - getPixelForValue: function(value, index, datasetIndex, includeOffset) { - var pixel; - - var newVal = +this.getRightValue(value) -; var range = helpers.log10(this.end) - helpers.log10(this.start); - - if (this.isHorizontal()) { - - if (newVal === 0) { - pixel = this.left + this.paddingLeft; - } else { - var innerWidth = this.width - (this.paddingLeft + this.paddingRight); - pixel = this.left + (innerWidth / range * (helpers.log10(newVal) - helpers.log10(this.start))); - pixel += this.paddingLeft; - } - } else { - // Bottom - top since pixels increase downard on a screen - if (newVal === 0) { - pixel = this.top + this.paddingTop; - } else { - var innerHeight = this.height - (this.paddingTop + this.paddingBottom); - pixel = (this.bottom - this.paddingBottom) - (innerHeight / range * (helpers.log10(newVal) - helpers.log10(this.start))); - } - } - - return pixel; - }, - getValueForPixel: function(pixel) { - var offset; - var range = helpers.log10(this.end) - helpers.log10(this.start); - var value; - - if (this.isHorizontal()) { - var innerWidth = this.width - (this.paddingLeft + this.paddingRight); - value = this.start * Math.pow(10, (pixel - this.left - this.paddingLeft) * range / innerWidth); - } else { - var innerHeight = this.height - (this.paddingTop + this.paddingBottom); - value = Math.pow(10, (this.bottom - this.paddingBottom - pixel) * range / innerHeight) / this.start; - } - - return value; - } - - }); - Chart.scaleService.registerScaleType("logarithmic", LogarithmicScale, defaultConfig); - +"use strict"; + +module.exports = function(Chart) { + + var helpers = Chart.helpers; + + var defaultConfig = { + position: "left", + + // label settings + ticks: { + callback: function(value, index, arr) { + var remain = value / (Math.pow(10, Math.floor(Chart.helpers.log10(value)))); + + if (remain === 1 || remain === 2 || remain === 5 || index === 0 || index === arr.length - 1) { + return value.toExponential(); + } else { + return ''; + } + } + } + }; + + var LogarithmicScale = Chart.Scale.extend({ + determineDataLimits: function() { + // Calculate Range + this.min = null; + this.max = null; + + if (this.options.stacked) { + var valuesPerType = {}; + + helpers.each(this.chart.data.datasets, function(dataset, datasetIndex) { + var meta = this.chart.getDatasetMeta(datasetIndex); + if (this.chart.isDatasetVisible(datasetIndex) && (this.isHorizontal() ? meta.xAxisID === this.id : meta.yAxisID === this.id)) { + if (valuesPerType[meta.type] === undefined) { + valuesPerType[meta.type] = []; + } + + helpers.each(dataset.data, function(rawValue, index) { + var values = valuesPerType[meta.type]; + var value = +this.getRightValue(rawValue); + if (isNaN(value) || meta.data[index].hidden) { + return; + } + + values[index] = values[index] || 0; + + if (this.options.relativePoints) { + values[index] = 100; + } else { + // Don't need to split positive and negative since the log scale can't handle a 0 crossing + values[index] += value; + } + }, this); + } + }, this); + + helpers.each(valuesPerType, function(valuesForType) { + var minVal = helpers.min(valuesForType); + var maxVal = helpers.max(valuesForType); + this.min = this.min === null ? minVal : Math.min(this.min, minVal); + this.max = this.max === null ? maxVal : Math.max(this.max, maxVal); + }, this); + + } else { + helpers.each(this.chart.data.datasets, function(dataset, datasetIndex) { + var meta = this.chart.getDatasetMeta(datasetIndex); + if (this.chart.isDatasetVisible(datasetIndex) && (this.isHorizontal() ? meta.xAxisID === this.id : meta.yAxisID === this.id)) { + helpers.each(dataset.data, function(rawValue, index) { + var value = +this.getRightValue(rawValue); + if (isNaN(value) || meta.data[index].hidden) { + return; + } + + if (this.min === null) { + this.min = value; + } else if (value < this.min) { + this.min = value; + } + + if (this.max === null) { + this.max = value; + } else if (value > this.max) { + this.max = value; + } + }, this); + } + }, this); + } + + this.min = this.options.ticks.min !== undefined ? this.options.ticks.min : this.min; + this.max = this.options.ticks.max !== undefined ? this.options.ticks.max : this.max; + + if (this.min === this.max) { + if (this.min !== 0 && this.min !== null) { + this.min = Math.pow(10, Math.floor(helpers.log10(this.min)) - 1); + this.max = Math.pow(10, Math.floor(helpers.log10(this.max)) + 1); + } else { + this.min = 1; + this.max = 10; + } + } + }, + buildTicks: function() { + // Reset the ticks array. Later on, we will draw a grid line at these positions + // The array simply contains the numerical value of the spots where ticks will be + this.ticks = []; + + // Figure out what the max number of ticks we can support it is based on the size of + // the axis area. For now, we say that the minimum tick spacing in pixels must be 50 + // We also limit the maximum number of ticks to 11 which gives a nice 10 squares on + // the graph + + var tickVal = this.options.ticks.min !== undefined ? this.options.ticks.min : Math.pow(10, Math.floor(helpers.log10(this.min))); + + while (tickVal < this.max) { + this.ticks.push(tickVal); + + var exp = Math.floor(helpers.log10(tickVal)); + var significand = Math.floor(tickVal / Math.pow(10, exp)) + 1; + + if (significand === 10) { + significand = 1; + ++exp; + } + + tickVal = significand * Math.pow(10, exp); + } + + var lastTick = this.options.ticks.max !== undefined ? this.options.ticks.max : tickVal; + this.ticks.push(lastTick); + + if (this.options.position === "left" || this.options.position === "right") { + // We are in a vertical orientation. The top value is the highest. So reverse the array + this.ticks.reverse(); + } + + // At this point, we need to update our max and min given the tick values since we have expanded the + // range of the scale + this.max = helpers.max(this.ticks); + this.min = helpers.min(this.ticks); + + if (this.options.ticks.reverse) { + this.ticks.reverse(); + + this.start = this.max; + this.end = this.min; + } else { + this.start = this.min; + this.end = this.max; + } + }, + convertTicksToLabels: function() { + this.tickValues = this.ticks.slice(); + + Chart.Scale.prototype.convertTicksToLabels.call(this); + }, + // Get the correct tooltip label + getLabelForIndex: function(index, datasetIndex) { + return +this.getRightValue(this.chart.data.datasets[datasetIndex].data[index]); + }, + getPixelForTick: function(index, includeOffset) { + return this.getPixelForValue(this.tickValues[index], null, null, includeOffset); + }, + getPixelForValue: function(value, index, datasetIndex, includeOffset) { + var pixel; + + var newVal = +this.getRightValue(value) +; var range = helpers.log10(this.end) - helpers.log10(this.start); + + if (this.isHorizontal()) { + + if (newVal === 0) { + pixel = this.left + this.paddingLeft; + } else { + var innerWidth = this.width - (this.paddingLeft + this.paddingRight); + pixel = this.left + (innerWidth / range * (helpers.log10(newVal) - helpers.log10(this.start))); + pixel += this.paddingLeft; + } + } else { + // Bottom - top since pixels increase downard on a screen + if (newVal === 0) { + pixel = this.top + this.paddingTop; + } else { + var innerHeight = this.height - (this.paddingTop + this.paddingBottom); + pixel = (this.bottom - this.paddingBottom) - (innerHeight / range * (helpers.log10(newVal) - helpers.log10(this.start))); + } + } + + return pixel; + }, + getValueForPixel: function(pixel) { + var offset; + var range = helpers.log10(this.end) - helpers.log10(this.start); + var value; + + if (this.isHorizontal()) { + var innerWidth = this.width - (this.paddingLeft + this.paddingRight); + value = this.start * Math.pow(10, (pixel - this.left - this.paddingLeft) * range / innerWidth); + } else { + var innerHeight = this.height - (this.paddingTop + this.paddingBottom); + value = Math.pow(10, (this.bottom - this.paddingBottom - pixel) * range / innerHeight) / this.start; + } + + return value; + } + + }); + Chart.scaleService.registerScaleType("logarithmic", LogarithmicScale, defaultConfig); + }; },{}],41:[function(require,module,exports){ -"use strict"; - -module.exports = function(Chart) { - - var helpers = Chart.helpers; - - var defaultConfig = { - display: true, - - //Boolean - Whether to animate scaling the chart from the centre - animate: true, - lineArc: false, - position: "chartArea", - - angleLines: { - display: true, - color: "rgba(0, 0, 0, 0.1)", - lineWidth: 1 - }, - - // label settings - ticks: { - //Boolean - Show a backdrop to the scale label - showLabelBackdrop: true, - - //String - The colour of the label backdrop - backdropColor: "rgba(255,255,255,0.75)", - - //Number - The backdrop padding above & below the label in pixels - backdropPaddingY: 2, - - //Number - The backdrop padding to the side of the label in pixels - backdropPaddingX: 2 - }, - - pointLabels: { - //Number - Point label font size in pixels - fontSize: 10, - - //Function - Used to convert point labels - callback: function(label) { - return label; - } - } - }; - - var LinearRadialScale = Chart.Scale.extend({ - getValueCount: function() { - return this.chart.data.labels.length; - }, - setDimensions: function() { - // Set the unconstrained dimension before label rotation - this.width = this.maxWidth; - this.height = this.maxHeight; - this.xCenter = Math.round(this.width / 2); - this.yCenter = Math.round(this.height / 2); - - var minSize = helpers.min([this.height, this.width]); - var tickFontSize = helpers.getValueOrDefault(this.options.ticks.fontSize, Chart.defaults.global.defaultFontSize); - this.drawingArea = (this.options.display) ? (minSize / 2) - (tickFontSize / 2 + this.options.ticks.backdropPaddingY) : (minSize / 2); - }, - determineDataLimits: function() { - this.min = null; - this.max = null; - - helpers.each(this.chart.data.datasets, function(dataset, datasetIndex) { - if (this.chart.isDatasetVisible(datasetIndex)) { - var meta = this.chart.getDatasetMeta(datasetIndex); - helpers.each(dataset.data, function(rawValue, index) { - var value = +this.getRightValue(rawValue); - if (isNaN(value) || meta.data[index].hidden) { - return; - } - - if (this.min === null) { - this.min = value; - } else if (value < this.min) { - this.min = value; - } - - if (this.max === null) { - this.max = value; - } else if (value > this.max) { - this.max = value; - } - }, this); - } - }, this); - - // If we are forcing it to begin at 0, but 0 will already be rendered on the chart, - // do nothing since that would make the chart weird. If the user really wants a weird chart - // axis, they can manually override it - if (this.options.ticks.beginAtZero) { - var minSign = helpers.sign(this.min); - var maxSign = helpers.sign(this.max); - - if (minSign < 0 && maxSign < 0) { - // move the top up to 0 - this.max = 0; - } else if (minSign > 0 && maxSign > 0) { - // move the botttom down to 0 - this.min = 0; - } - } - - if (this.options.ticks.min !== undefined) { - this.min = this.options.ticks.min; - } else if (this.options.ticks.suggestedMin !== undefined) { - this.min = Math.min(this.min, this.options.ticks.suggestedMin); - } - - if (this.options.ticks.max !== undefined) { - this.max = this.options.ticks.max; - } else if (this.options.ticks.suggestedMax !== undefined) { - this.max = Math.max(this.max, this.options.ticks.suggestedMax); - } - - if (this.min === this.max) { - this.min--; - this.max++; - } - }, - buildTicks: function() { - - - this.ticks = []; - - // Figure out what the max number of ticks we can support it is based on the size of - // the axis area. For now, we say that the minimum tick spacing in pixels must be 50 - // We also limit the maximum number of ticks to 11 which gives a nice 10 squares on - // the graph - var tickFontSize = helpers.getValueOrDefault(this.options.ticks.fontSize, Chart.defaults.global.defaultFontSize); - var maxTicks = Math.min(this.options.ticks.maxTicksLimit ? this.options.ticks.maxTicksLimit : 11, Math.ceil(this.drawingArea / (1.5 * tickFontSize))); - maxTicks = Math.max(2, maxTicks); // Make sure we always have at least 2 ticks - - // To get a "nice" value for the tick spacing, we will use the appropriately named - // "nice number" algorithm. See http://stackoverflow.com/questions/8506881/nice-label-algorithm-for-charts-with-minimum-ticks - // for details. - - var niceRange = helpers.niceNum(this.max - this.min, false); - var spacing = helpers.niceNum(niceRange / (maxTicks - 1), true); - var niceMin = Math.floor(this.min / spacing) * spacing; - var niceMax = Math.ceil(this.max / spacing) * spacing; - - var numSpaces = Math.ceil((niceMax - niceMin) / spacing); - - // Put the values into the ticks array - this.ticks.push(this.options.ticks.min !== undefined ? this.options.ticks.min : niceMin); - for (var j = 1; j < numSpaces; ++j) { - this.ticks.push(niceMin + (j * spacing)); - } - this.ticks.push(this.options.ticks.max !== undefined ? this.options.ticks.max : niceMax); - - // At this point, we need to update our max and min given the tick values since we have expanded the - // range of the scale - this.max = helpers.max(this.ticks); - this.min = helpers.min(this.ticks); - - if (this.options.ticks.reverse) { - this.ticks.reverse(); - - this.start = this.max; - this.end = this.min; - } else { - this.start = this.min; - this.end = this.max; - } - - this.zeroLineIndex = this.ticks.indexOf(0); - }, - convertTicksToLabels: function() { - Chart.Scale.prototype.convertTicksToLabels.call(this); - - // Point labels - this.pointLabels = this.chart.data.labels.map(this.options.pointLabels.callback, this); - }, - getLabelForIndex: function(index, datasetIndex) { - return +this.getRightValue(this.chart.data.datasets[datasetIndex].data[index]); - }, - fit: function() { - /* - * Right, this is really confusing and there is a lot of maths going on here - * The gist of the problem is here: https://gist.github.com/nnnick/696cc9c55f4b0beb8fe9 - * - * Reaction: https://dl.dropboxusercontent.com/u/34601363/toomuchscience.gif - * - * Solution: - * - * We assume the radius of the polygon is half the size of the canvas at first - * at each index we check if the text overlaps. - * - * Where it does, we store that angle and that index. - * - * After finding the largest index and angle we calculate how much we need to remove - * from the shape radius to move the point inwards by that x. - * - * We average the left and right distances to get the maximum shape radius that can fit in the box - * along with labels. - * - * Once we have that, we can find the centre point for the chart, by taking the x text protrusion - * on each side, removing that from the size, halving it and adding the left x protrusion width. - * - * This will mean we have a shape fitted to the canvas, as large as it can be with the labels - * and position it in the most space efficient manner - * - * https://dl.dropboxusercontent.com/u/34601363/yeahscience.gif - */ - - var pointLabelFontSize = helpers.getValueOrDefault(this.options.pointLabels.fontSize, Chart.defaults.global.defaultFontSize); - var pointLabeFontStyle = helpers.getValueOrDefault(this.options.pointLabels.fontStyle, Chart.defaults.global.defaultFontStyle); - var pointLabeFontFamily = helpers.getValueOrDefault(this.options.pointLabels.fontFamily, Chart.defaults.global.defaultFontFamily); - var pointLabeFont = helpers.fontString(pointLabelFontSize, pointLabeFontStyle, pointLabeFontFamily); - - // Get maximum radius of the polygon. Either half the height (minus the text width) or half the width. - // Use this to calculate the offset + change. - Make sure L/R protrusion is at least 0 to stop issues with centre points - var largestPossibleRadius = helpers.min([(this.height / 2 - pointLabelFontSize - 5), this.width / 2]), - pointPosition, - i, - textWidth, - halfTextWidth, - furthestRight = this.width, - furthestRightIndex, - furthestRightAngle, - furthestLeft = 0, - furthestLeftIndex, - furthestLeftAngle, - xProtrusionLeft, - xProtrusionRight, - radiusReductionRight, - radiusReductionLeft, - maxWidthRadius; - this.ctx.font = pointLabeFont; - - for (i = 0; i < this.getValueCount(); i++) { - // 5px to space the text slightly out - similar to what we do in the draw function. - pointPosition = this.getPointPosition(i, largestPossibleRadius); - textWidth = this.ctx.measureText(this.pointLabels[i] ? this.pointLabels[i] : '').width + 5; - if (i === 0 || i === this.getValueCount() / 2) { - // If we're at index zero, or exactly the middle, we're at exactly the top/bottom - // of the radar chart, so text will be aligned centrally, so we'll half it and compare - // w/left and right text sizes - halfTextWidth = textWidth / 2; - if (pointPosition.x + halfTextWidth > furthestRight) { - furthestRight = pointPosition.x + halfTextWidth; - furthestRightIndex = i; - } - if (pointPosition.x - halfTextWidth < furthestLeft) { - furthestLeft = pointPosition.x - halfTextWidth; - furthestLeftIndex = i; - } - } else if (i < this.getValueCount() / 2) { - // Less than half the values means we'll left align the text - if (pointPosition.x + textWidth > furthestRight) { - furthestRight = pointPosition.x + textWidth; - furthestRightIndex = i; - } - } else if (i > this.getValueCount() / 2) { - // More than half the values means we'll right align the text - if (pointPosition.x - textWidth < furthestLeft) { - furthestLeft = pointPosition.x - textWidth; - furthestLeftIndex = i; - } - } - } - - xProtrusionLeft = furthestLeft; - xProtrusionRight = Math.ceil(furthestRight - this.width); - - furthestRightAngle = this.getIndexAngle(furthestRightIndex); - furthestLeftAngle = this.getIndexAngle(furthestLeftIndex); - - radiusReductionRight = xProtrusionRight / Math.sin(furthestRightAngle + Math.PI / 2); - radiusReductionLeft = xProtrusionLeft / Math.sin(furthestLeftAngle + Math.PI / 2); - - // Ensure we actually need to reduce the size of the chart - radiusReductionRight = (helpers.isNumber(radiusReductionRight)) ? radiusReductionRight : 0; - radiusReductionLeft = (helpers.isNumber(radiusReductionLeft)) ? radiusReductionLeft : 0; - - this.drawingArea = Math.round(largestPossibleRadius - (radiusReductionLeft + radiusReductionRight) / 2); - this.setCenterPoint(radiusReductionLeft, radiusReductionRight); - }, - setCenterPoint: function(leftMovement, rightMovement) { - - var maxRight = this.width - rightMovement - this.drawingArea, - maxLeft = leftMovement + this.drawingArea; - - this.xCenter = Math.round(((maxLeft + maxRight) / 2) + this.left); - // Always vertically in the centre as the text height doesn't change - this.yCenter = Math.round((this.height / 2) + this.top); - }, - - getIndexAngle: function(index) { - var angleMultiplier = (Math.PI * 2) / this.getValueCount(); - // Start from the top instead of right, so remove a quarter of the circle - - return index * angleMultiplier - (Math.PI / 2); - }, - getDistanceFromCenterForValue: function(value) { - if (value === null) { - return 0; // null always in center - } - - // Take into account half font size + the yPadding of the top value - var scalingFactor = this.drawingArea / (this.max - this.min); - if (this.options.reverse) { - return (this.max - value) * scalingFactor; - } else { - return (value - this.min) * scalingFactor; - } - }, - getPointPosition: function(index, distanceFromCenter) { - var thisAngle = this.getIndexAngle(index); - return { - x: Math.round(Math.cos(thisAngle) * distanceFromCenter) + this.xCenter, - y: Math.round(Math.sin(thisAngle) * distanceFromCenter) + this.yCenter - }; - }, - getPointPositionForValue: function(index, value) { - return this.getPointPosition(index, this.getDistanceFromCenterForValue(value)); - }, - draw: function() { - if (this.options.display) { - var ctx = this.ctx; - helpers.each(this.ticks, function(label, index) { - // Don't draw a centre value (if it is minimum) - if (index > 0 || this.options.reverse) { - var yCenterOffset = this.getDistanceFromCenterForValue(this.ticks[index]); - var yHeight = this.yCenter - yCenterOffset; - - // Draw circular lines around the scale - if (this.options.gridLines.display) { - ctx.strokeStyle = this.options.gridLines.color; - ctx.lineWidth = this.options.gridLines.lineWidth; - - if (this.options.lineArc) { - // Draw circular arcs between the points - ctx.beginPath(); - ctx.arc(this.xCenter, this.yCenter, yCenterOffset, 0, Math.PI * 2); - ctx.closePath(); - ctx.stroke(); - } else { - // Draw straight lines connecting each index - ctx.beginPath(); - for (var i = 0; i < this.getValueCount(); i++) { - var pointPosition = this.getPointPosition(i, this.getDistanceFromCenterForValue(this.ticks[index])); - if (i === 0) { - ctx.moveTo(pointPosition.x, pointPosition.y); - } else { - ctx.lineTo(pointPosition.x, pointPosition.y); - } - } - ctx.closePath(); - ctx.stroke(); - } - } - - if (this.options.ticks.display) { - var tickFontColor = helpers.getValueOrDefault(this.options.ticks.fontColor, Chart.defaults.global.defaultFontColor); - var tickFontSize = helpers.getValueOrDefault(this.options.ticks.fontSize, Chart.defaults.global.defaultFontSize); - var tickFontStyle = helpers.getValueOrDefault(this.options.ticks.fontStyle, Chart.defaults.global.defaultFontStyle); - var tickFontFamily = helpers.getValueOrDefault(this.options.ticks.fontFamily, Chart.defaults.global.defaultFontFamily); - var tickLabelFont = helpers.fontString(tickFontSize, tickFontStyle, tickFontFamily); - ctx.font = tickLabelFont; - - if (this.options.ticks.showLabelBackdrop) { - var labelWidth = ctx.measureText(label).width; - ctx.fillStyle = this.options.ticks.backdropColor; - ctx.fillRect( - this.xCenter - labelWidth / 2 - this.options.ticks.backdropPaddingX, - yHeight - tickFontSize / 2 - this.options.ticks.backdropPaddingY, - labelWidth + this.options.ticks.backdropPaddingX * 2, - tickFontSize + this.options.ticks.backdropPaddingY * 2 - ); - } - - ctx.textAlign = 'center'; - ctx.textBaseline = "middle"; - ctx.fillStyle = tickFontColor; - ctx.fillText(label, this.xCenter, yHeight); - } - } - }, this); - - if (!this.options.lineArc) { - ctx.lineWidth = this.options.angleLines.lineWidth; - ctx.strokeStyle = this.options.angleLines.color; - - for (var i = this.getValueCount() - 1; i >= 0; i--) { - if (this.options.angleLines.display) { - var outerPosition = this.getPointPosition(i, this.getDistanceFromCenterForValue(this.options.reverse ? this.min : this.max)); - ctx.beginPath(); - ctx.moveTo(this.xCenter, this.yCenter); - ctx.lineTo(outerPosition.x, outerPosition.y); - ctx.stroke(); - ctx.closePath(); - } - // Extra 3px out for some label spacing - var pointLabelPosition = this.getPointPosition(i, this.getDistanceFromCenterForValue(this.options.reverse ? this.min : this.max) + 5); - - var pointLabelFontColor = helpers.getValueOrDefault(this.options.pointLabels.fontColor, Chart.defaults.global.defaultFontColor); - var pointLabelFontSize = helpers.getValueOrDefault(this.options.pointLabels.fontSize, Chart.defaults.global.defaultFontSize); - var pointLabeFontStyle = helpers.getValueOrDefault(this.options.pointLabels.fontStyle, Chart.defaults.global.defaultFontStyle); - var pointLabeFontFamily = helpers.getValueOrDefault(this.options.pointLabels.fontFamily, Chart.defaults.global.defaultFontFamily); - var pointLabeFont = helpers.fontString(pointLabelFontSize, pointLabeFontStyle, pointLabeFontFamily); - - ctx.font = pointLabeFont; - ctx.fillStyle = pointLabelFontColor; - - var labelsCount = this.pointLabels.length, - halfLabelsCount = this.pointLabels.length / 2, - quarterLabelsCount = halfLabelsCount / 2, - upperHalf = (i < quarterLabelsCount || i > labelsCount - quarterLabelsCount), - exactQuarter = (i === quarterLabelsCount || i === labelsCount - quarterLabelsCount); - if (i === 0) { - ctx.textAlign = 'center'; - } else if (i === halfLabelsCount) { - ctx.textAlign = 'center'; - } else if (i < halfLabelsCount) { - ctx.textAlign = 'left'; - } else { - ctx.textAlign = 'right'; - } - - // Set the correct text baseline based on outer positioning - if (exactQuarter) { - ctx.textBaseline = 'middle'; - } else if (upperHalf) { - ctx.textBaseline = 'bottom'; - } else { - ctx.textBaseline = 'top'; - } - - ctx.fillText(this.pointLabels[i] ? this.pointLabels[i] : '', pointLabelPosition.x, pointLabelPosition.y); - } - } - } - } - }); - Chart.scaleService.registerScaleType("radialLinear", LinearRadialScale, defaultConfig); - +"use strict"; + +module.exports = function(Chart) { + + var helpers = Chart.helpers; + + var defaultConfig = { + display: true, + + //Boolean - Whether to animate scaling the chart from the centre + animate: true, + lineArc: false, + position: "chartArea", + + angleLines: { + display: true, + color: "rgba(0, 0, 0, 0.1)", + lineWidth: 1 + }, + + // label settings + ticks: { + //Boolean - Show a backdrop to the scale label + showLabelBackdrop: true, + + //String - The colour of the label backdrop + backdropColor: "rgba(255,255,255,0.75)", + + //Number - The backdrop padding above & below the label in pixels + backdropPaddingY: 2, + + //Number - The backdrop padding to the side of the label in pixels + backdropPaddingX: 2 + }, + + pointLabels: { + //Number - Point label font size in pixels + fontSize: 10, + + //Function - Used to convert point labels + callback: function(label) { + return label; + } + } + }; + + var LinearRadialScale = Chart.Scale.extend({ + getValueCount: function() { + return this.chart.data.labels.length; + }, + setDimensions: function() { + // Set the unconstrained dimension before label rotation + this.width = this.maxWidth; + this.height = this.maxHeight; + this.xCenter = Math.round(this.width / 2); + this.yCenter = Math.round(this.height / 2); + + var minSize = helpers.min([this.height, this.width]); + var tickFontSize = helpers.getValueOrDefault(this.options.ticks.fontSize, Chart.defaults.global.defaultFontSize); + this.drawingArea = (this.options.display) ? (minSize / 2) - (tickFontSize / 2 + this.options.ticks.backdropPaddingY) : (minSize / 2); + }, + determineDataLimits: function() { + this.min = null; + this.max = null; + + helpers.each(this.chart.data.datasets, function(dataset, datasetIndex) { + if (this.chart.isDatasetVisible(datasetIndex)) { + var meta = this.chart.getDatasetMeta(datasetIndex); + helpers.each(dataset.data, function(rawValue, index) { + var value = +this.getRightValue(rawValue); + if (isNaN(value) || meta.data[index].hidden) { + return; + } + + if (this.min === null) { + this.min = value; + } else if (value < this.min) { + this.min = value; + } + + if (this.max === null) { + this.max = value; + } else if (value > this.max) { + this.max = value; + } + }, this); + } + }, this); + + // If we are forcing it to begin at 0, but 0 will already be rendered on the chart, + // do nothing since that would make the chart weird. If the user really wants a weird chart + // axis, they can manually override it + if (this.options.ticks.beginAtZero) { + var minSign = helpers.sign(this.min); + var maxSign = helpers.sign(this.max); + + if (minSign < 0 && maxSign < 0) { + // move the top up to 0 + this.max = 0; + } else if (minSign > 0 && maxSign > 0) { + // move the botttom down to 0 + this.min = 0; + } + } + + if (this.options.ticks.min !== undefined) { + this.min = this.options.ticks.min; + } else if (this.options.ticks.suggestedMin !== undefined) { + this.min = Math.min(this.min, this.options.ticks.suggestedMin); + } + + if (this.options.ticks.max !== undefined) { + this.max = this.options.ticks.max; + } else if (this.options.ticks.suggestedMax !== undefined) { + this.max = Math.max(this.max, this.options.ticks.suggestedMax); + } + + if (this.min === this.max) { + this.min--; + this.max++; + } + }, + buildTicks: function() { + + + this.ticks = []; + + // Figure out what the max number of ticks we can support it is based on the size of + // the axis area. For now, we say that the minimum tick spacing in pixels must be 50 + // We also limit the maximum number of ticks to 11 which gives a nice 10 squares on + // the graph + var tickFontSize = helpers.getValueOrDefault(this.options.ticks.fontSize, Chart.defaults.global.defaultFontSize); + var maxTicks = Math.min(this.options.ticks.maxTicksLimit ? this.options.ticks.maxTicksLimit : 11, Math.ceil(this.drawingArea / (1.5 * tickFontSize))); + maxTicks = Math.max(2, maxTicks); // Make sure we always have at least 2 ticks + + // To get a "nice" value for the tick spacing, we will use the appropriately named + // "nice number" algorithm. See http://stackoverflow.com/questions/8506881/nice-label-algorithm-for-charts-with-minimum-ticks + // for details. + + var niceRange = helpers.niceNum(this.max - this.min, false); + var spacing = helpers.niceNum(niceRange / (maxTicks - 1), true); + var niceMin = Math.floor(this.min / spacing) * spacing; + var niceMax = Math.ceil(this.max / spacing) * spacing; + + var numSpaces = Math.ceil((niceMax - niceMin) / spacing); + + // Put the values into the ticks array + this.ticks.push(this.options.ticks.min !== undefined ? this.options.ticks.min : niceMin); + for (var j = 1; j < numSpaces; ++j) { + this.ticks.push(niceMin + (j * spacing)); + } + this.ticks.push(this.options.ticks.max !== undefined ? this.options.ticks.max : niceMax); + + // At this point, we need to update our max and min given the tick values since we have expanded the + // range of the scale + this.max = helpers.max(this.ticks); + this.min = helpers.min(this.ticks); + + if (this.options.ticks.reverse) { + this.ticks.reverse(); + + this.start = this.max; + this.end = this.min; + } else { + this.start = this.min; + this.end = this.max; + } + + this.zeroLineIndex = this.ticks.indexOf(0); + }, + convertTicksToLabels: function() { + Chart.Scale.prototype.convertTicksToLabels.call(this); + + // Point labels + this.pointLabels = this.chart.data.labels.map(this.options.pointLabels.callback, this); + }, + getLabelForIndex: function(index, datasetIndex) { + return +this.getRightValue(this.chart.data.datasets[datasetIndex].data[index]); + }, + fit: function() { + /* + * Right, this is really confusing and there is a lot of maths going on here + * The gist of the problem is here: https://gist.github.com/nnnick/696cc9c55f4b0beb8fe9 + * + * Reaction: https://dl.dropboxusercontent.com/u/34601363/toomuchscience.gif + * + * Solution: + * + * We assume the radius of the polygon is half the size of the canvas at first + * at each index we check if the text overlaps. + * + * Where it does, we store that angle and that index. + * + * After finding the largest index and angle we calculate how much we need to remove + * from the shape radius to move the point inwards by that x. + * + * We average the left and right distances to get the maximum shape radius that can fit in the box + * along with labels. + * + * Once we have that, we can find the centre point for the chart, by taking the x text protrusion + * on each side, removing that from the size, halving it and adding the left x protrusion width. + * + * This will mean we have a shape fitted to the canvas, as large as it can be with the labels + * and position it in the most space efficient manner + * + * https://dl.dropboxusercontent.com/u/34601363/yeahscience.gif + */ + + var pointLabelFontSize = helpers.getValueOrDefault(this.options.pointLabels.fontSize, Chart.defaults.global.defaultFontSize); + var pointLabeFontStyle = helpers.getValueOrDefault(this.options.pointLabels.fontStyle, Chart.defaults.global.defaultFontStyle); + var pointLabeFontFamily = helpers.getValueOrDefault(this.options.pointLabels.fontFamily, Chart.defaults.global.defaultFontFamily); + var pointLabeFont = helpers.fontString(pointLabelFontSize, pointLabeFontStyle, pointLabeFontFamily); + + // Get maximum radius of the polygon. Either half the height (minus the text width) or half the width. + // Use this to calculate the offset + change. - Make sure L/R protrusion is at least 0 to stop issues with centre points + var largestPossibleRadius = helpers.min([(this.height / 2 - pointLabelFontSize - 5), this.width / 2]), + pointPosition, + i, + textWidth, + halfTextWidth, + furthestRight = this.width, + furthestRightIndex, + furthestRightAngle, + furthestLeft = 0, + furthestLeftIndex, + furthestLeftAngle, + xProtrusionLeft, + xProtrusionRight, + radiusReductionRight, + radiusReductionLeft, + maxWidthRadius; + this.ctx.font = pointLabeFont; + + for (i = 0; i < this.getValueCount(); i++) { + // 5px to space the text slightly out - similar to what we do in the draw function. + pointPosition = this.getPointPosition(i, largestPossibleRadius); + textWidth = this.ctx.measureText(this.pointLabels[i] ? this.pointLabels[i] : '').width + 5; + if (i === 0 || i === this.getValueCount() / 2) { + // If we're at index zero, or exactly the middle, we're at exactly the top/bottom + // of the radar chart, so text will be aligned centrally, so we'll half it and compare + // w/left and right text sizes + halfTextWidth = textWidth / 2; + if (pointPosition.x + halfTextWidth > furthestRight) { + furthestRight = pointPosition.x + halfTextWidth; + furthestRightIndex = i; + } + if (pointPosition.x - halfTextWidth < furthestLeft) { + furthestLeft = pointPosition.x - halfTextWidth; + furthestLeftIndex = i; + } + } else if (i < this.getValueCount() / 2) { + // Less than half the values means we'll left align the text + if (pointPosition.x + textWidth > furthestRight) { + furthestRight = pointPosition.x + textWidth; + furthestRightIndex = i; + } + } else if (i > this.getValueCount() / 2) { + // More than half the values means we'll right align the text + if (pointPosition.x - textWidth < furthestLeft) { + furthestLeft = pointPosition.x - textWidth; + furthestLeftIndex = i; + } + } + } + + xProtrusionLeft = furthestLeft; + xProtrusionRight = Math.ceil(furthestRight - this.width); + + furthestRightAngle = this.getIndexAngle(furthestRightIndex); + furthestLeftAngle = this.getIndexAngle(furthestLeftIndex); + + radiusReductionRight = xProtrusionRight / Math.sin(furthestRightAngle + Math.PI / 2); + radiusReductionLeft = xProtrusionLeft / Math.sin(furthestLeftAngle + Math.PI / 2); + + // Ensure we actually need to reduce the size of the chart + radiusReductionRight = (helpers.isNumber(radiusReductionRight)) ? radiusReductionRight : 0; + radiusReductionLeft = (helpers.isNumber(radiusReductionLeft)) ? radiusReductionLeft : 0; + + this.drawingArea = Math.round(largestPossibleRadius - (radiusReductionLeft + radiusReductionRight) / 2); + this.setCenterPoint(radiusReductionLeft, radiusReductionRight); + }, + setCenterPoint: function(leftMovement, rightMovement) { + + var maxRight = this.width - rightMovement - this.drawingArea, + maxLeft = leftMovement + this.drawingArea; + + this.xCenter = Math.round(((maxLeft + maxRight) / 2) + this.left); + // Always vertically in the centre as the text height doesn't change + this.yCenter = Math.round((this.height / 2) + this.top); + }, + + getIndexAngle: function(index) { + var angleMultiplier = (Math.PI * 2) / this.getValueCount(); + // Start from the top instead of right, so remove a quarter of the circle + + return index * angleMultiplier - (Math.PI / 2); + }, + getDistanceFromCenterForValue: function(value) { + if (value === null) { + return 0; // null always in center + } + + // Take into account half font size + the yPadding of the top value + var scalingFactor = this.drawingArea / (this.max - this.min); + if (this.options.reverse) { + return (this.max - value) * scalingFactor; + } else { + return (value - this.min) * scalingFactor; + } + }, + getPointPosition: function(index, distanceFromCenter) { + var thisAngle = this.getIndexAngle(index); + return { + x: Math.round(Math.cos(thisAngle) * distanceFromCenter) + this.xCenter, + y: Math.round(Math.sin(thisAngle) * distanceFromCenter) + this.yCenter + }; + }, + getPointPositionForValue: function(index, value) { + return this.getPointPosition(index, this.getDistanceFromCenterForValue(value)); + }, + draw: function() { + if (this.options.display) { + var ctx = this.ctx; + helpers.each(this.ticks, function(label, index) { + // Don't draw a centre value (if it is minimum) + if (index > 0 || this.options.reverse) { + var yCenterOffset = this.getDistanceFromCenterForValue(this.ticks[index]); + var yHeight = this.yCenter - yCenterOffset; + + // Draw circular lines around the scale + if (this.options.gridLines.display) { + ctx.strokeStyle = this.options.gridLines.color; + ctx.lineWidth = this.options.gridLines.lineWidth; + + if (this.options.lineArc) { + // Draw circular arcs between the points + ctx.beginPath(); + ctx.arc(this.xCenter, this.yCenter, yCenterOffset, 0, Math.PI * 2); + ctx.closePath(); + ctx.stroke(); + } else { + // Draw straight lines connecting each index + ctx.beginPath(); + for (var i = 0; i < this.getValueCount(); i++) { + var pointPosition = this.getPointPosition(i, this.getDistanceFromCenterForValue(this.ticks[index])); + if (i === 0) { + ctx.moveTo(pointPosition.x, pointPosition.y); + } else { + ctx.lineTo(pointPosition.x, pointPosition.y); + } + } + ctx.closePath(); + ctx.stroke(); + } + } + + if (this.options.ticks.display) { + var tickFontColor = helpers.getValueOrDefault(this.options.ticks.fontColor, Chart.defaults.global.defaultFontColor); + var tickFontSize = helpers.getValueOrDefault(this.options.ticks.fontSize, Chart.defaults.global.defaultFontSize); + var tickFontStyle = helpers.getValueOrDefault(this.options.ticks.fontStyle, Chart.defaults.global.defaultFontStyle); + var tickFontFamily = helpers.getValueOrDefault(this.options.ticks.fontFamily, Chart.defaults.global.defaultFontFamily); + var tickLabelFont = helpers.fontString(tickFontSize, tickFontStyle, tickFontFamily); + ctx.font = tickLabelFont; + + if (this.options.ticks.showLabelBackdrop) { + var labelWidth = ctx.measureText(label).width; + ctx.fillStyle = this.options.ticks.backdropColor; + ctx.fillRect( + this.xCenter - labelWidth / 2 - this.options.ticks.backdropPaddingX, + yHeight - tickFontSize / 2 - this.options.ticks.backdropPaddingY, + labelWidth + this.options.ticks.backdropPaddingX * 2, + tickFontSize + this.options.ticks.backdropPaddingY * 2 + ); + } + + ctx.textAlign = 'center'; + ctx.textBaseline = "middle"; + ctx.fillStyle = tickFontColor; + ctx.fillText(label, this.xCenter, yHeight); + } + } + }, this); + + if (!this.options.lineArc) { + ctx.lineWidth = this.options.angleLines.lineWidth; + ctx.strokeStyle = this.options.angleLines.color; + + for (var i = this.getValueCount() - 1; i >= 0; i--) { + if (this.options.angleLines.display) { + var outerPosition = this.getPointPosition(i, this.getDistanceFromCenterForValue(this.options.reverse ? this.min : this.max)); + ctx.beginPath(); + ctx.moveTo(this.xCenter, this.yCenter); + ctx.lineTo(outerPosition.x, outerPosition.y); + ctx.stroke(); + ctx.closePath(); + } + // Extra 3px out for some label spacing + var pointLabelPosition = this.getPointPosition(i, this.getDistanceFromCenterForValue(this.options.reverse ? this.min : this.max) + 5); + + var pointLabelFontColor = helpers.getValueOrDefault(this.options.pointLabels.fontColor, Chart.defaults.global.defaultFontColor); + var pointLabelFontSize = helpers.getValueOrDefault(this.options.pointLabels.fontSize, Chart.defaults.global.defaultFontSize); + var pointLabeFontStyle = helpers.getValueOrDefault(this.options.pointLabels.fontStyle, Chart.defaults.global.defaultFontStyle); + var pointLabeFontFamily = helpers.getValueOrDefault(this.options.pointLabels.fontFamily, Chart.defaults.global.defaultFontFamily); + var pointLabeFont = helpers.fontString(pointLabelFontSize, pointLabeFontStyle, pointLabeFontFamily); + + ctx.font = pointLabeFont; + ctx.fillStyle = pointLabelFontColor; + + var labelsCount = this.pointLabels.length, + halfLabelsCount = this.pointLabels.length / 2, + quarterLabelsCount = halfLabelsCount / 2, + upperHalf = (i < quarterLabelsCount || i > labelsCount - quarterLabelsCount), + exactQuarter = (i === quarterLabelsCount || i === labelsCount - quarterLabelsCount); + if (i === 0) { + ctx.textAlign = 'center'; + } else if (i === halfLabelsCount) { + ctx.textAlign = 'center'; + } else if (i < halfLabelsCount) { + ctx.textAlign = 'left'; + } else { + ctx.textAlign = 'right'; + } + + // Set the correct text baseline based on outer positioning + if (exactQuarter) { + ctx.textBaseline = 'middle'; + } else if (upperHalf) { + ctx.textBaseline = 'bottom'; + } else { + ctx.textBaseline = 'top'; + } + + ctx.fillText(this.pointLabels[i] ? this.pointLabels[i] : '', pointLabelPosition.x, pointLabelPosition.y); + } + } + } + } + }); + Chart.scaleService.registerScaleType("radialLinear", LinearRadialScale, defaultConfig); + }; },{}],42:[function(require,module,exports){ -/*global window: false */ -"use strict"; - -var moment = require('moment'); -moment = typeof(moment) === 'function' ? moment : window.moment; - -module.exports = function(Chart) { - - var helpers = Chart.helpers; - var time = { - units: [{ - name: 'millisecond', - steps: [1, 2, 5, 10, 20, 50, 100, 250, 500] - }, { - name: 'second', - steps: [1, 2, 5, 10, 30] - }, { - name: 'minute', - steps: [1, 2, 5, 10, 30] - }, { - name: 'hour', - steps: [1, 2, 3, 6, 12] - }, { - name: 'day', - steps: [1, 2, 5] - }, { - name: 'week', - maxStep: 4 - }, { - name: 'month', - maxStep: 3 - }, { - name: 'quarter', - maxStep: 4 - }, { - name: 'year', - maxStep: false - }] - }; - - var defaultConfig = { - position: "bottom", - - time: { - parser: false, // false == a pattern string from http://momentjs.com/docs/#/parsing/string-format/ or a custom callback that converts its argument to a moment - format: false, // DEPRECATED false == date objects, moment object, callback or a pattern string from http://momentjs.com/docs/#/parsing/string-format/ - unit: false, // false == automatic or override with week, month, year, etc. - round: false, // none, or override with week, month, year, etc. - displayFormat: false, // DEPRECATED - - // defaults to unit's corresponding unitFormat below or override using pattern string from http://momentjs.com/docs/#/displaying/format/ - displayFormats: { - 'millisecond': 'h:mm:ss.SSS a', // 11:20:01.123 AM, - 'second': 'h:mm:ss a', // 11:20:01 AM - 'minute': 'h:mm:ss a', // 11:20:01 AM - 'hour': 'MMM D, hA', // Sept 4, 5PM - 'day': 'll', // Sep 4 2015 - 'week': 'll', // Week 46, or maybe "[W]WW - YYYY" ? - 'month': 'MMM YYYY', // Sept 2015 - 'quarter': '[Q]Q - YYYY', // Q3 - 'year': 'YYYY' // 2015 - } - }, - ticks: { - autoSkip: false - } - }; - - var TimeScale = Chart.Scale.extend({ - initialize: function() { - if (!moment) { - throw new Error('Chart.js - Moment.js could not be found! You must include it before Chart.js to use the time scale. Download at https://momentjs.com'); - } - - Chart.Scale.prototype.initialize.call(this); - }, - getLabelMoment: function(datasetIndex, index) { - return this.labelMoments[datasetIndex][index]; - }, - determineDataLimits: function() { - this.labelMoments = []; - - // Only parse these once. If the dataset does not have data as x,y pairs, we will use - // these - var scaleLabelMoments = []; - if (this.chart.data.labels && this.chart.data.labels.length > 0) { - helpers.each(this.chart.data.labels, function(label, index) { - var labelMoment = this.parseTime(label); - - if (labelMoment.isValid()) { - if (this.options.time.round) { - labelMoment.startOf(this.options.time.round); - } - scaleLabelMoments.push(labelMoment); - } - }, this); - - this.firstTick = moment.min.call(this, scaleLabelMoments); - this.lastTick = moment.max.call(this, scaleLabelMoments); - } else { - this.firstTick = null; - this.lastTick = null; - } - - helpers.each(this.chart.data.datasets, function(dataset, datasetIndex) { - var momentsForDataset = []; - var datasetVisible = this.chart.isDatasetVisible(datasetIndex); - - if (typeof dataset.data[0] === 'object') { - helpers.each(dataset.data, function(value, index) { - var labelMoment = this.parseTime(this.getRightValue(value)); - - if (labelMoment.isValid()) { - if (this.options.time.round) { - labelMoment.startOf(this.options.time.round); - } - momentsForDataset.push(labelMoment); - - if (datasetVisible) { - // May have gone outside the scale ranges, make sure we keep the first and last ticks updated - this.firstTick = this.firstTick !== null ? moment.min(this.firstTick, labelMoment) : labelMoment; - this.lastTick = this.lastTick !== null ? moment.max(this.lastTick, labelMoment) : labelMoment; - } - } - }, this); - } else { - // We have no labels. Use the ones from the scale - momentsForDataset = scaleLabelMoments; - } - - this.labelMoments.push(momentsForDataset); - }, this); - - // Set these after we've done all the data - if (this.options.time.min) { - this.firstTick = this.parseTime(this.options.time.min); - } - - if (this.options.time.max) { - this.lastTick = this.parseTime(this.options.time.max); - } - - // We will modify these, so clone for later - this.firstTick = (this.firstTick || moment()).clone(); - this.lastTick = (this.lastTick || moment()).clone(); - }, - buildTicks: function(index) { - - this.ctx.save(); - var tickFontSize = helpers.getValueOrDefault(this.options.ticks.fontSize, Chart.defaults.global.defaultFontSize); - var tickFontStyle = helpers.getValueOrDefault(this.options.ticks.fontStyle, Chart.defaults.global.defaultFontStyle); - var tickFontFamily = helpers.getValueOrDefault(this.options.ticks.fontFamily, Chart.defaults.global.defaultFontFamily); - var tickLabelFont = helpers.fontString(tickFontSize, tickFontStyle, tickFontFamily); - this.ctx.font = tickLabelFont; - - this.ticks = []; - this.unitScale = 1; // How much we scale the unit by, ie 2 means 2x unit per step - this.scaleSizeInUnits = 0; // How large the scale is in the base unit (seconds, minutes, etc) - - // Set unit override if applicable - if (this.options.time.unit) { - this.tickUnit = this.options.time.unit || 'day'; - this.displayFormat = this.options.time.displayFormats[this.tickUnit]; - this.scaleSizeInUnits = this.lastTick.diff(this.firstTick, this.tickUnit, true); - this.unitScale = helpers.getValueOrDefault(this.options.time.unitStepSize, 1); - } else { - // Determine the smallest needed unit of the time - var innerWidth = this.isHorizontal() ? this.width - (this.paddingLeft + this.paddingRight) : this.height - (this.paddingTop + this.paddingBottom); - - // Crude approximation of what the label length might be - var tempFirstLabel = this.tickFormatFunction(this.firstTick, 0, []); - var tickLabelWidth = this.ctx.measureText(tempFirstLabel).width; - var cosRotation = Math.cos(helpers.toRadians(this.options.ticks.maxRotation)); - var sinRotation = Math.sin(helpers.toRadians(this.options.ticks.maxRotation)); - tickLabelWidth = (tickLabelWidth * cosRotation) + (tickFontSize * sinRotation); - var labelCapacity = innerWidth / (tickLabelWidth); - - // Start as small as possible - this.tickUnit = 'millisecond'; - this.scaleSizeInUnits = this.lastTick.diff(this.firstTick, this.tickUnit, true); - this.displayFormat = this.options.time.displayFormats[this.tickUnit]; - - var unitDefinitionIndex = 0; - var unitDefinition = time.units[unitDefinitionIndex]; - - // While we aren't ideal and we don't have units left - while (unitDefinitionIndex < time.units.length) { - // Can we scale this unit. If `false` we can scale infinitely - this.unitScale = 1; - - if (helpers.isArray(unitDefinition.steps) && Math.ceil(this.scaleSizeInUnits / labelCapacity) < helpers.max(unitDefinition.steps)) { - // Use one of the prefedined steps - for (var idx = 0; idx < unitDefinition.steps.length; ++idx) { - if (unitDefinition.steps[idx] >= Math.ceil(this.scaleSizeInUnits / labelCapacity)) { - this.unitScale = helpers.getValueOrDefault(this.options.time.unitStepSize, unitDefinition.steps[idx]); - break; - } - } - - break; - } else if ((unitDefinition.maxStep === false) || (Math.ceil(this.scaleSizeInUnits / labelCapacity) < unitDefinition.maxStep)) { - // We have a max step. Scale this unit - this.unitScale = helpers.getValueOrDefault(this.options.time.unitStepSize, Math.ceil(this.scaleSizeInUnits / labelCapacity)); - break; - } else { - // Move to the next unit up - ++unitDefinitionIndex; - unitDefinition = time.units[unitDefinitionIndex]; - - this.tickUnit = unitDefinition.name; - var leadingUnitBuffer = this.firstTick.diff(this.firstTick.clone().startOf(this.tickUnit), this.tickUnit, true); - var trailingUnitBuffer = this.lastTick.clone().add(1, this.tickUnit).startOf(this.tickUnit).diff(this.lastTick, this.tickUnit, true); - this.scaleSizeInUnits = this.lastTick.diff(this.firstTick, this.tickUnit, true) + leadingUnitBuffer + trailingUnitBuffer; - this.displayFormat = this.options.time.displayFormats[unitDefinition.name]; - } - } - } - - var roundedStart; - - // Only round the first tick if we have no hard minimum - if (!this.options.time.min) { - this.firstTick.startOf(this.tickUnit); - roundedStart = this.firstTick; - } else { - roundedStart = this.firstTick.clone().startOf(this.tickUnit); - } - - // Only round the last tick if we have no hard maximum - if (!this.options.time.max) { - var roundedEnd = this.lastTick.clone().startOf(this.tickUnit); - if (roundedEnd.diff(this.lastTick, this.tickUnit, true) !== 0) { - // Do not use end of because we need this to be in the next time unit - this.lastTick.add(1, this.tickUnit).startOf(this.tickUnit); - } - } - - this.smallestLabelSeparation = this.width; - - helpers.each(this.chart.data.datasets, function(dataset, datasetIndex) { - for (var i = 1; i < this.labelMoments[datasetIndex].length; i++) { - this.smallestLabelSeparation = Math.min(this.smallestLabelSeparation, this.labelMoments[datasetIndex][i].diff(this.labelMoments[datasetIndex][i - 1], this.tickUnit, true)); - } - }, this); - - // Tick displayFormat override - if (this.options.time.displayFormat) { - this.displayFormat = this.options.time.displayFormat; - } - - // first tick. will have been rounded correctly if options.time.min is not specified - this.ticks.push(this.firstTick.clone()); - - // For every unit in between the first and last moment, create a moment and add it to the ticks tick - for (var i = 1; i <= this.scaleSizeInUnits; ++i) { - var newTick = roundedStart.clone().add(i, this.tickUnit); - - // Are we greater than the max time - if (this.options.time.max && newTick.diff(this.lastTick, this.tickUnit, true) >= 0) { - break; - } - - if (i % this.unitScale === 0) { - this.ticks.push(newTick); - } - } - - // Always show the right tick - var diff = this.ticks[this.ticks.length - 1].diff(this.lastTick, this.tickUnit); - if (diff !== 0 || this.scaleSizeInUnits === 0) { - // this is a weird case. If the <max> option is the same as the end option, we can't just diff the times because the tick was created from the roundedStart - // but the last tick was not rounded. - if (this.options.time.max) { - this.ticks.push(this.lastTick.clone()); - this.scaleSizeInUnits = this.lastTick.diff(this.ticks[0], this.tickUnit, true); - } else { - this.ticks.push(this.lastTick.clone()); - this.scaleSizeInUnits = this.lastTick.diff(this.firstTick, this.tickUnit, true); - } - } - - this.ctx.restore(); - }, - // Get tooltip label - getLabelForIndex: function(index, datasetIndex) { - var label = this.chart.data.labels && index < this.chart.data.labels.length ? this.chart.data.labels[index] : ''; - - if (typeof this.chart.data.datasets[datasetIndex].data[0] === 'object') { - label = this.getRightValue(this.chart.data.datasets[datasetIndex].data[index]); - } - - // Format nicely - if (this.options.time.tooltipFormat) { - label = this.parseTime(label).format(this.options.time.tooltipFormat); - } - - return label; - }, - // Function to format an individual tick mark - tickFormatFunction: function tickFormatFunction(tick, index, ticks) { - var formattedTick = tick.format(this.displayFormat); - - if (this.options.ticks.userCallback) { - return this.options.ticks.userCallback(formattedTick, index, ticks); - } else { - return formattedTick; - } - }, - convertTicksToLabels: function() { - this.ticks = this.ticks.map(this.tickFormatFunction, this); - }, - getPixelForValue: function(value, index, datasetIndex, includeOffset) { - var labelMoment = value && value.isValid && value.isValid() ? value : this.getLabelMoment(datasetIndex, index); - - if (labelMoment) { - var offset = labelMoment.diff(this.firstTick, this.tickUnit, true); - - var decimal = offset / this.scaleSizeInUnits; - - if (this.isHorizontal()) { - var innerWidth = this.width - (this.paddingLeft + this.paddingRight); - var valueWidth = innerWidth / Math.max(this.ticks.length - 1, 1); - var valueOffset = (innerWidth * decimal) + this.paddingLeft; - - return this.left + Math.round(valueOffset); - } else { - var innerHeight = this.height - (this.paddingTop + this.paddingBottom); - var valueHeight = innerHeight / Math.max(this.ticks.length - 1, 1); - var heightOffset = (innerHeight * decimal) + this.paddingTop; - - return this.top + Math.round(heightOffset); - } - } - }, - getValueForPixel: function(pixel) { - var innerDimension = this.isHorizontal() ? this.width - (this.paddingLeft + this.paddingRight) : this.height - (this.paddingTop + this.paddingBottom); - var offset = (pixel - (this.isHorizontal() ? this.left + this.paddingLeft : this.top + this.paddingTop)) / innerDimension; - offset *= this.scaleSizeInUnits; - return this.firstTick.clone().add(moment.duration(offset, this.tickUnit).asSeconds(), 'seconds'); - }, - parseTime: function(label) { - if (typeof this.options.time.parser === 'string') { - return moment(label, this.options.time.parser); - } - if (typeof this.options.time.parser === 'function') { - return this.options.time.parser(label); - } - // Date objects - if (typeof label.getMonth === 'function' || typeof label === 'number') { - return moment(label); - } - // Moment support - if (label.isValid && label.isValid()) { - return label; - } - // Custom parsing (return an instance of moment) - if (typeof this.options.time.format !== 'string' && this.options.time.format.call) { - console.warn("options.time.format is deprecated and replaced by options.time.parser. See http://nnnick.github.io/Chart.js/docs-v2/#scales-time-scale"); - return this.options.time.format(label); - } - // Moment format parsing - return moment(label, this.options.time.format); - } - }); - Chart.scaleService.registerScaleType("time", TimeScale, defaultConfig); - -}; +/*global window: false */ +"use strict"; + +var moment = require('moment'); +moment = typeof(moment) === 'function' ? moment : window.moment; + +module.exports = function(Chart) { + + var helpers = Chart.helpers; + var time = { + units: [{ + name: 'millisecond', + steps: [1, 2, 5, 10, 20, 50, 100, 250, 500] + }, { + name: 'second', + steps: [1, 2, 5, 10, 30] + }, { + name: 'minute', + steps: [1, 2, 5, 10, 30] + }, { + name: 'hour', + steps: [1, 2, 3, 6, 12] + }, { + name: 'day', + steps: [1, 2, 5] + }, { + name: 'week', + maxStep: 4 + }, { + name: 'month', + maxStep: 3 + }, { + name: 'quarter', + maxStep: 4 + }, { + name: 'year', + maxStep: false + }] + }; + + var defaultConfig = { + position: "bottom", + + time: { + parser: false, // false == a pattern string from http://momentjs.com/docs/#/parsing/string-format/ or a custom callback that converts its argument to a moment + format: false, // DEPRECATED false == date objects, moment object, callback or a pattern string from http://momentjs.com/docs/#/parsing/string-format/ + unit: false, // false == automatic or override with week, month, year, etc. + round: false, // none, or override with week, month, year, etc. + displayFormat: false, // DEPRECATED + isoWeekday: false, // override week start day - see http://momentjs.com/docs/#/get-set/iso-weekday/ + + // defaults to unit's corresponding unitFormat below or override using pattern string from http://momentjs.com/docs/#/displaying/format/ + displayFormats: { + 'millisecond': 'h:mm:ss.SSS a', // 11:20:01.123 AM, + 'second': 'h:mm:ss a', // 11:20:01 AM + 'minute': 'h:mm:ss a', // 11:20:01 AM + 'hour': 'MMM D, hA', // Sept 4, 5PM + 'day': 'll', // Sep 4 2015 + 'week': 'll', // Week 46, or maybe "[W]WW - YYYY" ? + 'month': 'MMM YYYY', // Sept 2015 + 'quarter': '[Q]Q - YYYY', // Q3 + 'year': 'YYYY' // 2015 + } + }, + ticks: { + autoSkip: false + } + }; + + var TimeScale = Chart.Scale.extend({ + initialize: function() { + if (!moment) { + throw new Error('Chart.js - Moment.js could not be found! You must include it before Chart.js to use the time scale. Download at https://momentjs.com'); + } + + Chart.Scale.prototype.initialize.call(this); + }, + getLabelMoment: function(datasetIndex, index) { + return this.labelMoments[datasetIndex][index]; + }, + getMomentStartOf: function(tick) { + if (this.options.time.unit === 'week' && this.options.time.isoWeekday !== false) { + return tick.clone().startOf('isoWeek').isoWeekday(this.options.time.isoWeekday); + } else { + return tick.clone().startOf(this.tickUnit); + } + }, + determineDataLimits: function() { + this.labelMoments = []; + + // Only parse these once. If the dataset does not have data as x,y pairs, we will use + // these + var scaleLabelMoments = []; + if (this.chart.data.labels && this.chart.data.labels.length > 0) { + helpers.each(this.chart.data.labels, function(label, index) { + var labelMoment = this.parseTime(label); + + if (labelMoment.isValid()) { + if (this.options.time.round) { + labelMoment.startOf(this.options.time.round); + } + scaleLabelMoments.push(labelMoment); + } + }, this); + + this.firstTick = moment.min.call(this, scaleLabelMoments); + this.lastTick = moment.max.call(this, scaleLabelMoments); + } else { + this.firstTick = null; + this.lastTick = null; + } + + helpers.each(this.chart.data.datasets, function(dataset, datasetIndex) { + var momentsForDataset = []; + var datasetVisible = this.chart.isDatasetVisible(datasetIndex); + + if (typeof dataset.data[0] === 'object') { + helpers.each(dataset.data, function(value, index) { + var labelMoment = this.parseTime(this.getRightValue(value)); + + if (labelMoment.isValid()) { + if (this.options.time.round) { + labelMoment.startOf(this.options.time.round); + } + momentsForDataset.push(labelMoment); + + if (datasetVisible) { + // May have gone outside the scale ranges, make sure we keep the first and last ticks updated + this.firstTick = this.firstTick !== null ? moment.min(this.firstTick, labelMoment) : labelMoment; + this.lastTick = this.lastTick !== null ? moment.max(this.lastTick, labelMoment) : labelMoment; + } + } + }, this); + } else { + // We have no labels. Use the ones from the scale + momentsForDataset = scaleLabelMoments; + } + + this.labelMoments.push(momentsForDataset); + }, this); + + // Set these after we've done all the data + if (this.options.time.min) { + this.firstTick = this.parseTime(this.options.time.min); + } + + if (this.options.time.max) { + this.lastTick = this.parseTime(this.options.time.max); + } + + // We will modify these, so clone for later + this.firstTick = (this.firstTick || moment()).clone(); + this.lastTick = (this.lastTick || moment()).clone(); + }, + buildTicks: function(index) { + + this.ctx.save(); + var tickFontSize = helpers.getValueOrDefault(this.options.ticks.fontSize, Chart.defaults.global.defaultFontSize); + var tickFontStyle = helpers.getValueOrDefault(this.options.ticks.fontStyle, Chart.defaults.global.defaultFontStyle); + var tickFontFamily = helpers.getValueOrDefault(this.options.ticks.fontFamily, Chart.defaults.global.defaultFontFamily); + var tickLabelFont = helpers.fontString(tickFontSize, tickFontStyle, tickFontFamily); + this.ctx.font = tickLabelFont; + + this.ticks = []; + this.unitScale = 1; // How much we scale the unit by, ie 2 means 2x unit per step + this.scaleSizeInUnits = 0; // How large the scale is in the base unit (seconds, minutes, etc) + + // Set unit override if applicable + if (this.options.time.unit) { + this.tickUnit = this.options.time.unit || 'day'; + this.displayFormat = this.options.time.displayFormats[this.tickUnit]; + this.scaleSizeInUnits = this.lastTick.diff(this.firstTick, this.tickUnit, true); + this.unitScale = helpers.getValueOrDefault(this.options.time.unitStepSize, 1); + } else { + // Determine the smallest needed unit of the time + var innerWidth = this.isHorizontal() ? this.width - (this.paddingLeft + this.paddingRight) : this.height - (this.paddingTop + this.paddingBottom); + + // Crude approximation of what the label length might be + var tempFirstLabel = this.tickFormatFunction(this.firstTick, 0, []); + var tickLabelWidth = this.ctx.measureText(tempFirstLabel).width; + var cosRotation = Math.cos(helpers.toRadians(this.options.ticks.maxRotation)); + var sinRotation = Math.sin(helpers.toRadians(this.options.ticks.maxRotation)); + tickLabelWidth = (tickLabelWidth * cosRotation) + (tickFontSize * sinRotation); + var labelCapacity = innerWidth / (tickLabelWidth); + + // Start as small as possible + this.tickUnit = 'millisecond'; + this.scaleSizeInUnits = this.lastTick.diff(this.firstTick, this.tickUnit, true); + this.displayFormat = this.options.time.displayFormats[this.tickUnit]; + + var unitDefinitionIndex = 0; + var unitDefinition = time.units[unitDefinitionIndex]; + + // While we aren't ideal and we don't have units left + while (unitDefinitionIndex < time.units.length) { + // Can we scale this unit. If `false` we can scale infinitely + this.unitScale = 1; + + if (helpers.isArray(unitDefinition.steps) && Math.ceil(this.scaleSizeInUnits / labelCapacity) < helpers.max(unitDefinition.steps)) { + // Use one of the prefedined steps + for (var idx = 0; idx < unitDefinition.steps.length; ++idx) { + if (unitDefinition.steps[idx] >= Math.ceil(this.scaleSizeInUnits / labelCapacity)) { + this.unitScale = helpers.getValueOrDefault(this.options.time.unitStepSize, unitDefinition.steps[idx]); + break; + } + } + + break; + } else if ((unitDefinition.maxStep === false) || (Math.ceil(this.scaleSizeInUnits / labelCapacity) < unitDefinition.maxStep)) { + // We have a max step. Scale this unit + this.unitScale = helpers.getValueOrDefault(this.options.time.unitStepSize, Math.ceil(this.scaleSizeInUnits / labelCapacity)); + break; + } else { + // Move to the next unit up + ++unitDefinitionIndex; + unitDefinition = time.units[unitDefinitionIndex]; + + this.tickUnit = unitDefinition.name; + var leadingUnitBuffer = this.firstTick.diff(this.getMomentStartOf(this.firstTick), this.tickUnit, true); + var trailingUnitBuffer = this.getMomentStartOf(this.lastTick.clone().add(1, this.tickUnit)).diff(this.lastTick, this.tickUnit, true); + this.scaleSizeInUnits = this.lastTick.diff(this.firstTick, this.tickUnit, true) + leadingUnitBuffer + trailingUnitBuffer; + this.displayFormat = this.options.time.displayFormats[unitDefinition.name]; + } + } + } + + var roundedStart; + + // Only round the first tick if we have no hard minimum + if (!this.options.time.min) { + this.firstTick = this.getMomentStartOf(this.firstTick); + roundedStart = this.firstTick; + } else { + roundedStart = this.getMomentStartOf(this.firstTick); + } + + // Only round the last tick if we have no hard maximum + if (!this.options.time.max) { + var roundedEnd = this.getMomentStartOf(this.lastTick); + if (roundedEnd.diff(this.lastTick, this.tickUnit, true) !== 0) { + // Do not use end of because we need this to be in the next time unit + this.lastTick = this.getMomentStartOf(this.lastTick.add(1, this.tickUnit)); + } + } + + this.smallestLabelSeparation = this.width; + + helpers.each(this.chart.data.datasets, function(dataset, datasetIndex) { + for (var i = 1; i < this.labelMoments[datasetIndex].length; i++) { + this.smallestLabelSeparation = Math.min(this.smallestLabelSeparation, this.labelMoments[datasetIndex][i].diff(this.labelMoments[datasetIndex][i - 1], this.tickUnit, true)); + } + }, this); + + // Tick displayFormat override + if (this.options.time.displayFormat) { + this.displayFormat = this.options.time.displayFormat; + } + + // first tick. will have been rounded correctly if options.time.min is not specified + this.ticks.push(this.firstTick.clone()); + + // For every unit in between the first and last moment, create a moment and add it to the ticks tick + for (var i = 1; i <= this.scaleSizeInUnits; ++i) { + var newTick = roundedStart.clone().add(i, this.tickUnit); + + // Are we greater than the max time + if (this.options.time.max && newTick.diff(this.lastTick, this.tickUnit, true) >= 0) { + break; + } + + if (i % this.unitScale === 0) { + this.ticks.push(newTick); + } + } + + // Always show the right tick + var diff = this.ticks[this.ticks.length - 1].diff(this.lastTick, this.tickUnit); + if (diff !== 0 || this.scaleSizeInUnits === 0) { + // this is a weird case. If the <max> option is the same as the end option, we can't just diff the times because the tick was created from the roundedStart + // but the last tick was not rounded. + if (this.options.time.max) { + this.ticks.push(this.lastTick.clone()); + this.scaleSizeInUnits = this.lastTick.diff(this.ticks[0], this.tickUnit, true); + } else { + this.ticks.push(this.lastTick.clone()); + this.scaleSizeInUnits = this.lastTick.diff(this.firstTick, this.tickUnit, true); + } + } + + this.ctx.restore(); + }, + // Get tooltip label + getLabelForIndex: function(index, datasetIndex) { + var label = this.chart.data.labels && index < this.chart.data.labels.length ? this.chart.data.labels[index] : ''; + + if (typeof this.chart.data.datasets[datasetIndex].data[0] === 'object') { + label = this.getRightValue(this.chart.data.datasets[datasetIndex].data[index]); + } + + // Format nicely + if (this.options.time.tooltipFormat) { + label = this.parseTime(label).format(this.options.time.tooltipFormat); + } + + return label; + }, + // Function to format an individual tick mark + tickFormatFunction: function tickFormatFunction(tick, index, ticks) { + var formattedTick = tick.format(this.displayFormat); + var tickOpts = this.options.ticks; + var callback = helpers.getValueOrDefault(tickOpts.callback, tickOpts.userCallback); + + if (callback) { + return callback(formattedTick, index, ticks); + } else { + return formattedTick; + } + }, + convertTicksToLabels: function() { + this.tickMoments = this.ticks; + this.ticks = this.ticks.map(this.tickFormatFunction, this); + }, + getPixelForValue: function(value, index, datasetIndex, includeOffset) { + var labelMoment = value && value.isValid && value.isValid() ? value : this.getLabelMoment(datasetIndex, index); + + if (labelMoment) { + var offset = labelMoment.diff(this.firstTick, this.tickUnit, true); + + var decimal = offset / this.scaleSizeInUnits; + + if (this.isHorizontal()) { + var innerWidth = this.width - (this.paddingLeft + this.paddingRight); + var valueWidth = innerWidth / Math.max(this.ticks.length - 1, 1); + var valueOffset = (innerWidth * decimal) + this.paddingLeft; + + return this.left + Math.round(valueOffset); + } else { + var innerHeight = this.height - (this.paddingTop + this.paddingBottom); + var valueHeight = innerHeight / Math.max(this.ticks.length - 1, 1); + var heightOffset = (innerHeight * decimal) + this.paddingTop; + + return this.top + Math.round(heightOffset); + } + } + }, + getPixelForTick: function(index, includeOffset) { + return this.getPixelForValue(this.tickMoments[index], null, null, includeOffset); + }, + getValueForPixel: function(pixel) { + var innerDimension = this.isHorizontal() ? this.width - (this.paddingLeft + this.paddingRight) : this.height - (this.paddingTop + this.paddingBottom); + var offset = (pixel - (this.isHorizontal() ? this.left + this.paddingLeft : this.top + this.paddingTop)) / innerDimension; + offset *= this.scaleSizeInUnits; + return this.firstTick.clone().add(moment.duration(offset, this.tickUnit).asSeconds(), 'seconds'); + }, + parseTime: function(label) { + if (typeof this.options.time.parser === 'string') { + return moment(label, this.options.time.parser); + } + if (typeof this.options.time.parser === 'function') { + return this.options.time.parser(label); + } + // Date objects + if (typeof label.getMonth === 'function' || typeof label === 'number') { + return moment(label); + } + // Moment support + if (label.isValid && label.isValid()) { + return label; + } + // Custom parsing (return an instance of moment) + if (typeof this.options.time.format !== 'string' && this.options.time.format.call) { + console.warn("options.time.format is deprecated and replaced by options.time.parser. See http://nnnick.github.io/Chart.js/docs-v2/#scales-time-scale"); + return this.options.time.format(label); + } + // Moment format parsing + return moment(label, this.options.time.format); + } + }); + Chart.scaleService.registerScaleType("time", TimeScale, defaultConfig); + +}; },{"moment":1}]},{},[7]);