Sha256: 44ce4e856921bb28de1433aba20df2e200428690c7b925e7e1e4b612887e6c6d
Contents?: true
Size: 1.01 KB
Versions: 13
Compression:
Stored size: 1.01 KB
Contents
pageflow.linkmapPage.ImageData = (function() {
function ImageData(width, height, image) {
var canvas = document.createElement('canvas');
this.width = width;
this.height = height;
canvas.width = width;
canvas.height = height;
image.draw(canvas.getContext('2d'), {
width: width,
disableImageSmoothing: true
});
this.draw = function(context, sx, sy, sw, sh, dx, dy, dw, dh) {
context.drawImage(canvas, sx, sy, sw, sh, dx, dy, dw, dh);
};
this.nonTransparentAt = function(x, y) {
var context = canvas.getContext('2d');
var pixel = context.getImageData(x, y, 1, 1).data;
return pixel[3] > 0;
};
}
ImageData.empty = {
hasColorAt: function() {
return false;
},
colorAt: function() {
return null;
}
};
ImageData.load = function(url) {
return pageflow.linkmapPage.RemoteImage.load(url).then(function(image) {
return new ImageData(image.width(), image.height(), image);
});
};
return ImageData;
}());
Version data entries
13 entries across 13 versions & 1 rubygems