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/*
* Paper.js - The Swiss Army Knife of Vector Graphics Scripting.
* http://paperjs.org/
*
* Copyright (c) 2011 - 2013, Juerg Lehni & Jonathan Puckey
* http://lehni.org/ & http://jonathanpuckey.com/
*
* Distributed under the MIT license. See LICENSE file for details.
*
* All rights reserved.
*/
module('Raster');
test('Create a raster without a source and check its size', function() {
var raster = new Raster();
equals(raster.size.toString(), new Size(0, 0).toString(), true);
});
test('Create a raster without a source and set its size', function() {
var raster = new Raster();
raster.size = [640, 480];
equals(raster.size.toString(), new Size(640, 480).toString(), true);
});
asyncTest('Create a raster from a url', function(callback) {
var raster = new Raster('resources/paper-js.gif');
raster.onLoad = function() {
equals(raster.size.toString(), new Size(146, 146).toString(), true);
callback();
};
});
asyncTest('Create a raster from a data url', function(callback) {
var raster = new Raster('data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAIAAAD91JpzAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAABlJREFUeNpi+s/AwPCfgYmR4f9/hv8AAQYAHiAFAS8Lwy8AAAAASUVORK5CYII=');
raster.onLoad = function() {
equals(raster.size.toString(), new Size(2, 2).toString(), true);
callback();
};
});
asyncTest('Create a raster from a dom image', function(callback) {
var img = document.createElement('img');
img.src = 'resources/paper-js.gif';
document.body.appendChild(img);
DomEvent.add(img, {
load: function() {
var raster = new Raster(img);
equals(raster.size.toString(), new Size(146, 146).toString(), true);
document.body.removeChild(img);
callback();
}
});
});
test('Create a raster from a canvas', function(callback) {
var canvas = CanvasProvider.getCanvas(30, 20);
var raster = new Raster(canvas);
equals(raster.size.toString(), new Size(30, 20).toString(), true);
CanvasProvider.release(canvas);
});
asyncTest('Create a raster from a dom id', function(callback) {
var img = document.createElement('img');
img.src = 'resources/paper-js.gif';
img.id = 'testimage';
document.body.appendChild(img);
DomEvent.add(img, {
load: function() {
var raster = new Raster('testimage');
equals(raster.size.toString(), new Size(146, 146).toString(), true);
document.body.removeChild(img);
callback();
}
});
});
asyncTest('Raster#getPixel / setPixel', function(callback) {
var raster = new Raster('data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAIAAAD91JpzAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAABlJREFUeNpi+s/AwPCfgYmR4f9/hv8AAQYAHiAFAS8Lwy8AAAAASUVORK5CYII=');
raster.onLoad = function() {
compareColors(raster.getPixel(0, 0), new Color(1, 0, 0, 1));
compareColors(raster.getPixel(1, 0), new Color(0, 1, 0, 1));
compareColors(raster.getPixel(0, 1), new Color(0, 0, 1, 1));
compareColors(raster.getPixel(1, 1), new Color(1, 1, 1, 1));
// Alpha
var color = new Color(1, 1, 0, 0.50196);
raster.setPixel([0, 0], color);
compareColors(raster.getPixel([0, 0]), color, 'alpha');
callback();
};
});
asyncTest('Raster#getSubCanvas', function(callback) {
var raster = new Raster('data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAIAAAD91JpzAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAABlJREFUeNpi+s/AwPCfgYmR4f9/hv8AAQYAHiAFAS8Lwy8AAAAASUVORK5CYII=');
raster.onLoad = function() {
var canvas = raster.getSubCanvas(new Rectangle({
point: [1, 0],
size: [1, 2]
}));
equals(function() {
return canvas.width;
}, 1);
equals(function() {
return canvas.height;
}, 2);
var ctx = canvas.getContext('2d');
var expected = [
// green pixel:
0, 255, 0, 255,
// white pixel:
255, 255, 255, 255
];
equals(function() {
return Base.equals(Array.prototype.slice.call(ctx.getImageData(0, 0, 1, 2).data), expected);
}, true);
callback();
};
});
test('Raster#getAverageColor(path)', function() {
var rect = new Path.Rectangle({
point: [0, 0],
size: [100, 100],
fillColor: new Color(0, 1, 0)
});
var circle = new Path.Circle({
center: [50, 50],
radius: 25,
fillColor: new Color(1, 0, 0)
});
var raster = paper.project.activeLayer.rasterize();
circle.scale(0.9);
compareColors(raster.getAverageColor(circle), circle.fillColor, null, 3);
});
test('Raster#getAverageColor(path) with compound path', function() {
new Path.Rectangle({
point: [0, 0],
size: [100, 100],
fillColor: new Color(0, 1, 0)
});
var path = new Path.Circle({
center: [50, 50],
radius: 25
});
var path2 = new Path.Circle({
center: [50, 50],
radius: 10
});
var compoundPath = new CompoundPath(path, path2);
compoundPath.fillColor = new Color(1, 0, 0);
var raster = paper.project.activeLayer.rasterize();
path.scale(0.9);
path2.scale(1.1);
compareColors(raster.getAverageColor(compoundPath), new Color(1, 0, 0), null, 3);
});