scratchfoundation/paper.js
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Allow for Raster#setPixel(x, y, color).

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This commit is contained in:
Jonathan Puckey 2011-03-11 14:23:30 +01:00
parent 1bb9a262d9
commit d7399926a0
1 changed files with 6 additions and 5 deletions

11
src/item/Raster.js
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@ -153,17 +153,18 @@ var Raster = this.Raster = Item.extend({
return RGBColor.read(channels);
},
// TODO: setPixel(point, color)
setPixel: function(x, y, color) {
color = Color.read(arguments, 2);
setPixel: function(point, color) {
var hasPoint = arguments.length == 2;
point = Point.read(arguments, 0, hasPoint ? 1 : 2);
color = Color.read(arguments, hasPoint ? 1 : 2);
var ctx = this.getContext(),
imageData = ctx.getImageData(x, y, 1, 1),
imageData = ctx.createImageData(1, 1),
alpha = color.getAlpha();
imageData.data[0] = color.getRed() * 255;
imageData.data[1] = color.getGreen() * 255;
imageData.data[2] = color.getBlue() * 255;
imageData.data[3] = alpha != null ? alpha * 255 : 255;
ctx.putImageData(imageData, x, y);
ctx.putImageData(imageData, point.x, point.y);
},
createData: function(size) {