paper.js/test/tests/CompoundPath.js

/*
 * Paper.js
 *
 * This file is part of Paper.js, a JavaScript Vector Graphics Library,
 * based on Scriptographer.org and designed to be largely API compatible.
 * http://paperjs.org/
 * http://scriptographer.org/
 *
 * Copyright (c) 2011, Juerg Lehni & Jonathan Puckey
 * http://lehni.org/ & http://jonathanpuckey.com/
 *
 * Distributed under the MIT license. See LICENSE file for details.
 *
 * All rights reserved.
 */

module('Compound Path');

test('moveTo / lineTo', function() {
	var path = new CompoundPath();

	var lists = [
		[new Point(279, 151), new Point(149, 151), new Point(149, 281), new Point(279, 281)],
		[new Point(319, 321), new Point(109, 321), new Point(109, 111), new Point(319, 111)]
	];

	for (var i = 0; i < lists.length; i++) {
		var list = lists[i];
		for (var j = 0; j < list.length; j++) {
			path[j == 0 ? 'moveTo' : 'lineTo'](list[j]);
		}
	}

	path.fillColor = 'black';
	
	equals(function() {
		return path.children.length;
	}, 2);
});

test('clockwise', function() {
	var path1 = new Path.Rectangle([200, 200], [100, 100]);
	var path2 = new Path.Rectangle([50, 50], [200, 200]);
	var path3 = new Path.Rectangle([0, 0], [400, 400]);

	equals(function() {
		return path1.clockwise;
	}, true);
	equals(function() {
		return path2.clockwise;
	}, true);
	equals(function() {
		return path3.clockwise;
	}, true);

	var compound = new CompoundPath(path1, path2, path3);

	equals(function() {
		return compound.lastChild == path3;
	}, true);
	equals(function() {
		return compound.firstChild == path1;
	}, true);
	equals(function() {
		return path1.clockwise;
	}, true);
	equals(function() {
		return path2.clockwise;
	}, true);
	equals(function() {
		return path3.clockwise;
	}, false);
})