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Contents
/**
* Module dependencies.
*/
var stylus = require('stylus')
, Canvas = require('canvas')
, nodes = stylus.nodes
, utils = stylus.utils
/**
* Expose `ColorImage`.
*/
exports = module.exports = ColorImage;
/**
* Create a new `ColorImage` node with the given `color`.
*
* @param {Color} color node
* @return {ColorImage}
* @api public
*/
exports.create = function(color){
utils.assertColor(color);
return new ColorImage(color);
};
/**
* Return the data URI for `colorImage`.
*
* @param {ColorImage} colorImage
* @return {String}
* @api public
*/
exports.dataURL = function(colorImage){
utils.assertType(colorImage, 'colorimage');
return new nodes.String(colorImage.toDataURL());
};
/**
* Initialize a new `ColorImage` node with the given arguments.
*
* @param {Color} color node
* @api private
*/
function ColorImage(color) {
this.color = color;
this.canvas = new Canvas(1, 1);
this.ctx = this.canvas.getContext('2d');
this.ctx.fillStyle = color.toString();
this.ctx.fillRect(0, 0, 1, 1);
};
/**
* Inherit from `nodes.Node.prototype`.
*/
ColorImage.prototype.__proto__ = nodes.Node.prototype;
/**
* Inspect the color.
*
* @return {String}
* @api private
*/
ColorImage.prototype.toString = function(){
return 'ColorImage(' + this.color.toString() + ')';
};
/**
* Return data URI string.
*
* @return {String}
* @api private
*/
ColorImage.prototype.toDataURL = function(){
return this.canvas.toDataURL();
};
Version data entries
14 entries across 14 versions & 1 rubygems