ningbouni.git - Gitblit

main / ningbouni

宁波大学

查看 | 历史 | 提交 | 提交对比

懒羊羊

2023-11-14 8286c62256f23bc2367a6729c0f46f84215e380b

提交 \| 用户 \| 时间
8286c6	1	/**
懒	2	* @license A class to parse color values
	3	* @author Stoyan Stefanov <sstoo@gmail.com>
	4	* @link http://www.phpied.com/rgb-color-parser-in-javascript/
	5	* Use it if you like it
	6	*
	7	*/
	8	function RGBColor(color_string)
	9	{
	10	this.ok = false;
	11
	12	// strip any leading #
	13	if (color_string.charAt(0) == '#') { // remove # if any
	14	color_string = color_string.substr(1,6);
	15	}
	16
	17	color_string = color_string.replace(/ /g,'');
	18	color_string = color_string.toLowerCase();
	19
	20	// before getting into regexps, try simple matches
	21	// and overwrite the input
	22	var simple_colors = {
	23	aliceblue: 'f0f8ff',
	24	antiquewhite: 'faebd7',
	25	aqua: '00ffff',
	26	aquamarine: '7fffd4',
	27	azure: 'f0ffff',
	28	beige: 'f5f5dc',
	29	bisque: 'ffe4c4',
	30	black: '000000',
	31	blanchedalmond: 'ffebcd',
	32	blue: '0000ff',
	33	blueviolet: '8a2be2',
	34	brown: 'a52a2a',
	35	burlywood: 'deb887',
	36	cadetblue: '5f9ea0',
	37	chartreuse: '7fff00',
	38	chocolate: 'd2691e',
	39	coral: 'ff7f50',
	40	cornflowerblue: '6495ed',
	41	cornsilk: 'fff8dc',
	42	crimson: 'dc143c',
	43	cyan: '00ffff',
	44	darkblue: '00008b',
	45	darkcyan: '008b8b',
	46	darkgoldenrod: 'b8860b',
	47	darkgray: 'a9a9a9',
	48	darkgreen: '006400',
	49	darkkhaki: 'bdb76b',
	50	darkmagenta: '8b008b',
	51	darkolivegreen: '556b2f',
	52	darkorange: 'ff8c00',
	53	darkorchid: '9932cc',
	54	darkred: '8b0000',
	55	darksalmon: 'e9967a',
	56	darkseagreen: '8fbc8f',
	57	darkslateblue: '483d8b',
	58	darkslategray: '2f4f4f',
	59	darkturquoise: '00ced1',
	60	darkviolet: '9400d3',
	61	deeppink: 'ff1493',
	62	deepskyblue: '00bfff',
	63	dimgray: '696969',
	64	dodgerblue: '1e90ff',
	65	feldspar: 'd19275',
	66	firebrick: 'b22222',
	67	floralwhite: 'fffaf0',
	68	forestgreen: '228b22',
	69	fuchsia: 'ff00ff',
	70	gainsboro: 'dcdcdc',
	71	ghostwhite: 'f8f8ff',
	72	gold: 'ffd700',
	73	goldenrod: 'daa520',
	74	gray: '808080',
	75	green: '008000',
	76	greenyellow: 'adff2f',
	77	honeydew: 'f0fff0',
	78	hotpink: 'ff69b4',
	79	indianred : 'cd5c5c',
	80	indigo : '4b0082',
	81	ivory: 'fffff0',
	82	khaki: 'f0e68c',
	83	lavender: 'e6e6fa',
	84	lavenderblush: 'fff0f5',
	85	lawngreen: '7cfc00',
	86	lemonchiffon: 'fffacd',
	87	lightblue: 'add8e6',
	88	lightcoral: 'f08080',
	89	lightcyan: 'e0ffff',
	90	lightgoldenrodyellow: 'fafad2',
	91	lightgrey: 'd3d3d3',
	92	lightgreen: '90ee90',
	93	lightpink: 'ffb6c1',
	94	lightsalmon: 'ffa07a',
	95	lightseagreen: '20b2aa',
	96	lightskyblue: '87cefa',
	97	lightslateblue: '8470ff',
	98	lightslategray: '778899',
	99	lightsteelblue: 'b0c4de',
	100	lightyellow: 'ffffe0',
	101	lime: '00ff00',
	102	limegreen: '32cd32',
	103	linen: 'faf0e6',
	104	magenta: 'ff00ff',
	105	maroon: '800000',
	106	mediumaquamarine: '66cdaa',
	107	mediumblue: '0000cd',
	108	mediumorchid: 'ba55d3',
	109	mediumpurple: '9370d8',
	110	mediumseagreen: '3cb371',
	111	mediumslateblue: '7b68ee',
	112	mediumspringgreen: '00fa9a',
	113	mediumturquoise: '48d1cc',
	114	mediumvioletred: 'c71585',
	115	midnightblue: '191970',
	116	mintcream: 'f5fffa',
	117	mistyrose: 'ffe4e1',
	118	moccasin: 'ffe4b5',
	119	navajowhite: 'ffdead',
	120	navy: '000080',
	121	oldlace: 'fdf5e6',
	122	olive: '808000',
	123	olivedrab: '6b8e23',
	124	orange: 'ffa500',
	125	orangered: 'ff4500',
	126	orchid: 'da70d6',
	127	palegoldenrod: 'eee8aa',
	128	palegreen: '98fb98',
	129	paleturquoise: 'afeeee',
	130	palevioletred: 'd87093',
	131	papayawhip: 'ffefd5',
	132	peachpuff: 'ffdab9',
	133	peru: 'cd853f',
	134	pink: 'ffc0cb',
	135	plum: 'dda0dd',
	136	powderblue: 'b0e0e6',
	137	purple: '800080',
	138	red: 'ff0000',
	139	rosybrown: 'bc8f8f',
	140	royalblue: '4169e1',
	141	saddlebrown: '8b4513',
	142	salmon: 'fa8072',
	143	sandybrown: 'f4a460',
	144	seagreen: '2e8b57',
	145	seashell: 'fff5ee',
	146	sienna: 'a0522d',
	147	silver: 'c0c0c0',
	148	skyblue: '87ceeb',
	149	slateblue: '6a5acd',
	150	slategray: '708090',
	151	snow: 'fffafa',
	152	springgreen: '00ff7f',
	153	steelblue: '4682b4',
	154	tan: 'd2b48c',
	155	teal: '008080',
	156	thistle: 'd8bfd8',
	157	tomato: 'ff6347',
	158	turquoise: '40e0d0',
	159	violet: 'ee82ee',
	160	violetred: 'd02090',
	161	wheat: 'f5deb3',
	162	white: 'ffffff',
	163	whitesmoke: 'f5f5f5',
	164	yellow: 'ffff00',
	165	yellowgreen: '9acd32'
	166	};
	167	for (var key in simple_colors) {
	168	if (color_string == key) {
	169	color_string = simple_colors[key];
	170	}
	171	}
	172	// emd of simple type-in colors
	173
	174	// array of color definition objects
	175	var color_defs = [
	176	{
	177	re: /^rgb\((\d{1,3}),\s(\d{1,3}),\s(\d{1,3})\)$/,
	178	example: ['rgb(123, 234, 45)', 'rgb(255,234,245)'],
	179	process: function (bits){
	180	return [
	181	parseInt(bits[1]),
	182	parseInt(bits[2]),
	183	parseInt(bits[3])
	184	];
	185	}
	186	},
	187	{
	188	re: /^(\w{2})(\w{2})(\w{2})$/,
	189	example: ['#00ff00', '336699'],
	190	process: function (bits){
	191	return [
	192	parseInt(bits[1], 16),
	193	parseInt(bits[2], 16),
	194	parseInt(bits[3], 16)
	195	];
	196	}
	197	},
	198	{
	199	re: /^(\w{1})(\w{1})(\w{1})$/,
	200	example: ['#fb0', 'f0f'],
	201	process: function (bits){
	202	return [
	203	parseInt(bits[1] + bits[1], 16),
	204	parseInt(bits[2] + bits[2], 16),
	205	parseInt(bits[3] + bits[3], 16)
	206	];
	207	}
	208	}
	209	];
	210
	211	// search through the definitions to find a match
	212	for (var i = 0; i < color_defs.length; i++) {
	213	var re = color_defs[i].re;
	214	var processor = color_defs[i].process;
	215	var bits = re.exec(color_string);
	216	if (bits) {
	217	channels = processor(bits);
	218	this.r = channels[0];
	219	this.g = channels[1];
	220	this.b = channels[2];
	221	this.ok = true;
	222	}
	223
	224	}
	225
	226	// validate/cleanup values
	227	this.r = (this.r < 0 \|\| isNaN(this.r)) ? 0 : ((this.r > 255) ? 255 : this.r);
	228	this.g = (this.g < 0 \|\| isNaN(this.g)) ? 0 : ((this.g > 255) ? 255 : this.g);
	229	this.b = (this.b < 0 \|\| isNaN(this.b)) ? 0 : ((this.b > 255) ? 255 : this.b);
	230
	231	// some getters
	232	this.toRGB = function () {
	233	return 'rgb(' + this.r + ', ' + this.g + ', ' + this.b + ')';
	234	}
	235	this.toHex = function () {
	236	var r = this.r.toString(16);
	237	var g = this.g.toString(16);
	238	var b = this.b.toString(16);
	239	if (r.length == 1) r = '0' + r;
	240	if (g.length == 1) g = '0' + g;
	241	if (b.length == 1) b = '0' + b;
	242	return '#' + r + g + b;
	243	}
	244
	245	// help
	246	this.getHelpXML = function () {
	247
	248	var examples = new Array();
	249	// add regexps
	250	for (var i = 0; i < color_defs.length; i++) {
	251	var example = color_defs[i].example;
	252	for (var j = 0; j < example.length; j++) {
	253	examples[examples.length] = example[j];
	254	}
	255	}
	256	// add type-in colors
	257	for (var sc in simple_colors) {
	258	examples[examples.length] = sc;
	259	}
	260
	261	var xml = document.createElement('ul');
	262	xml.setAttribute('id', 'rgbcolor-examples');
	263	for (var i = 0; i < examples.length; i++) {
	264	try {
	265	var list_item = document.createElement('li');
	266	var list_color = new RGBColor(examples[i]);
	267	var example_div = document.createElement('div');
	268	example_div.style.cssText =
	269	'margin: 3px; '
	270	+ 'border: 1px solid black; '
	271	+ 'background:' + list_color.toHex() + '; '
	272	+ 'color:' + list_color.toHex()
	273	;
	274	example_div.appendChild(document.createTextNode('test'));
	275	var list_item_value = document.createTextNode(
	276	' ' + examples[i] + ' -> ' + list_color.toRGB() + ' -> ' + list_color.toHex()
	277	);
	278	list_item.appendChild(example_div);
	279	list_item.appendChild(list_item_value);
	280	xml.appendChild(list_item);
	281
	282	} catch(e){}
	283	}
	284	return xml;
	285
	286	}
	287
	288	}
	289
	290	/**
	291	* @license canvg.js - Javascript SVG parser and renderer on Canvas
	292	* MIT Licensed
	293	* Gabe Lerner (gabelerner@gmail.com)
	294	* http://code.google.com/p/canvg/
	295	*
	296	* Requires: rgbcolor.js - http://www.phpied.com/rgb-color-parser-in-javascript/
	297	*
	298	*/
	299	if(!window.console) {
	300	window.console = {};
	301	window.console.log = function(str) {};
	302	window.console.dir = function(str) {};
	303	}
	304
	305	if(!Array.prototype.indexOf){
	306	Array.prototype.indexOf = function(obj){
	307	for(var i=0; i<this.length; i++){
	308	if(this[i]==obj){
	309	return i;
	310	}
	311	}
	312	return -1;
	313	}
	314	}
	315
	316	(function(){
	317	// canvg(target, s)
	318	// empty parameters: replace all 'svg' elements on page with 'canvas' elements
	319	// target: canvas element or the id of a canvas element
	320	// s: svg string, url to svg file, or xml document
	321	// opts: optional hash of options
	322	// ignoreMouse: true => ignore mouse events
	323	// ignoreAnimation: true => ignore animations
	324	// ignoreDimensions: true => does not try to resize canvas
	325	// ignoreClear: true => does not clear canvas
	326	// offsetX: int => draws at a x offset
	327	// offsetY: int => draws at a y offset
	328	// scaleWidth: int => scales horizontally to width
	329	// scaleHeight: int => scales vertically to height
	330	// renderCallback: function => will call the function after the first render is completed
	331	// forceRedraw: function => will call the function on every frame, if it returns true, will redraw
	332	this.canvg = function (target, s, opts) {
	333	// no parameters
	334	if (target == null && s == null && opts == null) {
	335	var svgTags = document.getElementsByTagName('svg');
	336	for (var i=0; i<svgTags.length; i++) {
	337	var svgTag = svgTags[i];
	338	var c = document.createElement('canvas');
	339	c.width = svgTag.clientWidth;
	340	c.height = svgTag.clientHeight;
	341	svgTag.parentNode.insertBefore(c, svgTag);
	342	svgTag.parentNode.removeChild(svgTag);
	343	var div = document.createElement('div');
	344	div.appendChild(svgTag);
	345	canvg(c, div.innerHTML);
	346	}
	347	return;
	348	}
	349	opts = opts \|\| {};
	350
	351	if (typeof target == 'string') {
	352	target = document.getElementById(target);
	353	}
	354
	355	// reuse class per canvas
	356	var svg;
	357	if (target.svg == null) {
	358	svg = build();
	359	target.svg = svg;
	360	}
	361	else {
	362	svg = target.svg;
	363	svg.stop();
	364	}
	365	svg.opts = opts;
	366
	367	var ctx = target.getContext('2d');
	368	if (typeof(s.documentElement) != 'undefined') {
	369	// load from xml doc
	370	svg.loadXmlDoc(ctx, s);
	371	}
	372	else if (s.substr(0,1) == '<') {
	373	// load from xml string
	374	svg.loadXml(ctx, s);
	375	}
	376	else {
	377	// load from url
	378	svg.load(ctx, s);
	379	}
	380	}
	381
	382	function build() {
	383	var svg = { };
	384
	385	svg.FRAMERATE = 30;
	386	svg.MAX_VIRTUAL_PIXELS = 30000;
	387
	388	// globals
	389	svg.init = function(ctx) {
	390	svg.Definitions = {};
	391	svg.Styles = {};
	392	svg.Animations = [];
	393	svg.Images = [];
	394	svg.ctx = ctx;
	395	svg.ViewPort = new (function () {
	396	this.viewPorts = [];
	397	this.Clear = function() { this.viewPorts = []; }
	398	this.SetCurrent = function(width, height) { this.viewPorts.push({ width: width, height: height }); }
	399	this.RemoveCurrent = function() { this.viewPorts.pop(); }
	400	this.Current = function() { return this.viewPorts[this.viewPorts.length - 1]; }
	401	this.width = function() { return this.Current().width; }
	402	this.height = function() { return this.Current().height; }
	403	this.ComputeSize = function(d) {
	404	if (d != null && typeof(d) == 'number') return d;
	405	if (d == 'x') return this.width();
	406	if (d == 'y') return this.height();
	407	return Math.sqrt(Math.pow(this.width(), 2) + Math.pow(this.height(), 2)) / Math.sqrt(2);
	408	}
	409	});
	410	}
	411	svg.init();
	412
	413	// images loaded
	414	svg.ImagesLoaded = function() {
	415	for (var i=0; i<svg.Images.length; i++) {
	416	if (!svg.Images[i].loaded) return false;
	417	}
	418	return true;
	419	}
	420
	421	// trim
	422	svg.trim = function(s) { return s.replace(/^\s+\|\s+$/g, ''); }
	423
	424	// compress spaces
	425	svg.compressSpaces = function(s) { return s.replace(/[\s\r\t\n]+/gm,' '); }
	426
	427	// ajax
	428	svg.ajax = function(url) {
	429	var AJAX;
	430	if(window.XMLHttpRequest){AJAX=new XMLHttpRequest();}
	431	else{AJAX=new ActiveXObject('Microsoft.XMLHTTP');}
	432	if(AJAX){
	433	AJAX.open('GET',url,false);
	434	AJAX.send(null);
	435	return AJAX.responseText;
	436	}
	437	return null;
	438	}
	439
	440	// parse xml
	441	svg.parseXml = function(xml) {
	442	if (window.DOMParser)
	443	{
	444	var parser = new DOMParser();
	445	return parser.parseFromString(xml, 'text/xml');
	446	}
	447	else
	448	{
	449	xml = xml.replace(/<!DOCTYPE svg[^>]*>/, '');
	450	var xmlDoc = new ActiveXObject('Microsoft.XMLDOM');
	451	xmlDoc.async = 'false';
	452	xmlDoc.loadXML(xml);
	453	return xmlDoc;
	454	}
	455	}
	456
	457	svg.Property = function(name, value) {
	458	this.name = name;
	459	this.value = value;
	460
	461	this.hasValue = function() {
	462	return (this.value != null && this.value !== '');
	463	}
	464
	465	// return the numerical value of the property
	466	this.numValue = function() {
	467	if (!this.hasValue()) return 0;
	468
	469	var n = parseFloat(this.value);
	470	if ((this.value + '').match(/%$/)) {
	471	n = n / 100.0;
	472	}
	473	return n;
	474	}
	475
	476	this.valueOrDefault = function(def) {
	477	if (this.hasValue()) return this.value;
	478	return def;
	479	}
	480
	481	this.numValueOrDefault = function(def) {
	482	if (this.hasValue()) return this.numValue();
	483	return def;
	484	}
	485
	486	/* EXTENSIONS */
	487	var that = this;
	488
	489	// color extensions
	490	this.Color = {
	491	// augment the current color value with the opacity
	492	addOpacity: function(opacity) {
	493	var newValue = that.value;
	494	if (opacity != null && opacity != '') {
	495	var color = new RGBColor(that.value);
	496	if (color.ok) {
	497	newValue = 'rgba(' + color.r + ', ' + color.g + ', ' + color.b + ', ' + opacity + ')';
	498	}
	499	}
	500	return new svg.Property(that.name, newValue);
	501	}
	502	}
	503
	504	// definition extensions
	505	this.Definition = {
	506	// get the definition from the definitions table
	507	getDefinition: function() {
	508	var name = that.value.replace(/^(url\()?#([^\)]+)\)?$/, '$2');
	509	return svg.Definitions[name];
	510	},
	511
	512	isUrl: function() {
	513	return that.value.indexOf('url(') == 0
	514	},
	515
	516	getFillStyle: function(e) {
	517	var def = this.getDefinition();
	518
	519	// gradient
	520	if (def != null && def.createGradient) {
	521	return def.createGradient(svg.ctx, e);
	522	}
	523
	524	// pattern
	525	if (def != null && def.createPattern) {
	526	return def.createPattern(svg.ctx, e);
	527	}
	528
	529	return null;
	530	}
	531	}
	532
	533	// length extensions
	534	this.Length = {
	535	DPI: function(viewPort) {
	536	return 96.0; // TODO: compute?
	537	},
	538
	539	EM: function(viewPort) {
	540	var em = 12;
	541
	542	var fontSize = new svg.Property('fontSize', svg.Font.Parse(svg.ctx.font).fontSize);
	543	if (fontSize.hasValue()) em = fontSize.Length.toPixels(viewPort);
	544
	545	return em;
	546	},
	547
	548	// get the length as pixels
	549	toPixels: function(viewPort) {
	550	if (!that.hasValue()) return 0;
	551	var s = that.value+'';
	552	if (s.match(/em$/)) return that.numValue() * this.EM(viewPort);
	553	if (s.match(/ex$/)) return that.numValue() * this.EM(viewPort) / 2.0;
	554	if (s.match(/px$/)) return that.numValue();
	555	if (s.match(/pt$/)) return that.numValue() * 1.25;
	556	if (s.match(/pc$/)) return that.numValue() * 15;
	557	if (s.match(/cm$/)) return that.numValue() * this.DPI(viewPort) / 2.54;
	558	if (s.match(/mm$/)) return that.numValue() * this.DPI(viewPort) / 25.4;
	559	if (s.match(/in$/)) return that.numValue() * this.DPI(viewPort);
	560	if (s.match(/%$/)) return that.numValue() * svg.ViewPort.ComputeSize(viewPort);
	561	return that.numValue();
	562	}
	563	}
	564
	565	// time extensions
	566	this.Time = {
	567	// get the time as milliseconds
	568	toMilliseconds: function() {
	569	if (!that.hasValue()) return 0;
	570	var s = that.value+'';
	571	if (s.match(/s$/)) return that.numValue() * 1000;
	572	if (s.match(/ms$/)) return that.numValue();
	573	return that.numValue();
	574	}
	575	}
	576
	577	// angle extensions
	578	this.Angle = {
	579	// get the angle as radians
	580	toRadians: function() {
	581	if (!that.hasValue()) return 0;
	582	var s = that.value+'';
	583	if (s.match(/deg$/)) return that.numValue() * (Math.PI / 180.0);
	584	if (s.match(/grad$/)) return that.numValue() * (Math.PI / 200.0);
	585	if (s.match(/rad$/)) return that.numValue();
	586	return that.numValue() * (Math.PI / 180.0);
	587	}
	588	}
	589	}
	590
	591	// fonts
	592	svg.Font = new (function() {
	593	this.Styles = ['normal','italic','oblique','inherit'];
	594	this.Variants = ['normal','small-caps','inherit'];
	595	this.Weights = ['normal','bold','bolder','lighter','100','200','300','400','500','600','700','800','900','inherit'];
	596
	597	this.CreateFont = function(fontStyle, fontVariant, fontWeight, fontSize, fontFamily, inherit) {
	598	var f = inherit != null ? this.Parse(inherit) : this.CreateFont('', '', '', '', '', svg.ctx.font);
	599	return {
	600	fontFamily: fontFamily \|\| f.fontFamily,
	601	fontSize: fontSize \|\| f.fontSize,
	602	fontStyle: fontStyle \|\| f.fontStyle,
	603	fontWeight: fontWeight \|\| f.fontWeight,
	604	fontVariant: fontVariant \|\| f.fontVariant,
	605	toString: function () { return [this.fontStyle, this.fontVariant, this.fontWeight, this.fontSize, this.fontFamily].join(' ') }
	606	}
	607	}
	608
	609	var that = this;
	610	this.Parse = function(s) {
	611	var f = {};
	612	var d = svg.trim(svg.compressSpaces(s \|\| '')).split(' ');
	613	var set = { fontSize: false, fontStyle: false, fontWeight: false, fontVariant: false }
	614	var ff = '';
	615	for (var i=0; i<d.length; i++) {
	616	if (!set.fontStyle && that.Styles.indexOf(d[i]) != -1) { if (d[i] != 'inherit') f.fontStyle = d[i]; set.fontStyle = true; }
	617	else if (!set.fontVariant && that.Variants.indexOf(d[i]) != -1) { if (d[i] != 'inherit') f.fontVariant = d[i]; set.fontStyle = set.fontVariant = true; }
	618	else if (!set.fontWeight && that.Weights.indexOf(d[i]) != -1) { if (d[i] != 'inherit') f.fontWeight = d[i]; set.fontStyle = set.fontVariant = set.fontWeight = true; }
	619	else if (!set.fontSize) { if (d[i] != 'inherit') f.fontSize = d[i].split('/')[0]; set.fontStyle = set.fontVariant = set.fontWeight = set.fontSize = true; }
	620	else { if (d[i] != 'inherit') ff += d[i]; }
	621	} if (ff != '') f.fontFamily = ff;
	622	return f;
	623	}
	624	});
	625
	626	// points and paths
	627	svg.ToNumberArray = function(s) {
	628	var a = svg.trim(svg.compressSpaces((s \|\| '').replace(/,/g, ' '))).split(' ');
	629	for (var i=0; i<a.length; i++) {
	630	a[i] = parseFloat(a[i]);
	631	}
	632	return a;
	633	}
	634	svg.Point = function(x, y) {
	635	this.x = x;
	636	this.y = y;
	637
	638	this.angleTo = function(p) {
	639	return Math.atan2(p.y - this.y, p.x - this.x);
	640	}
	641
	642	this.applyTransform = function(v) {
	643	var xp = this.x * v[0] + this.y * v[2] + v[4];
	644	var yp = this.x * v[1] + this.y * v[3] + v[5];
	645	this.x = xp;
	646	this.y = yp;
	647	}
	648	}
	649	svg.CreatePoint = function(s) {
	650	var a = svg.ToNumberArray(s);
	651	return new svg.Point(a[0], a[1]);
	652	}
	653	svg.CreatePath = function(s) {
	654	var a = svg.ToNumberArray(s);
	655	var path = [];
	656	for (var i=0; i<a.length; i+=2) {
	657	path.push(new svg.Point(a[i], a[i+1]));
	658	}
	659	return path;
	660	}
	661
	662	// bounding box
	663	svg.BoundingBox = function(x1, y1, x2, y2) { // pass in initial points if you want
	664	this.x1 = Number.NaN;
	665	this.y1 = Number.NaN;
	666	this.x2 = Number.NaN;
	667	this.y2 = Number.NaN;
	668
	669	this.x = function() { return this.x1; }
	670	this.y = function() { return this.y1; }
	671	this.width = function() { return this.x2 - this.x1; }
	672	this.height = function() { return this.y2 - this.y1; }
	673
	674	this.addPoint = function(x, y) {
	675	if (x != null) {
	676	if (isNaN(this.x1) \|\| isNaN(this.x2)) {
	677	this.x1 = x;
	678	this.x2 = x;
	679	}
	680	if (x < this.x1) this.x1 = x;
	681	if (x > this.x2) this.x2 = x;
	682	}
	683
	684	if (y != null) {
	685	if (isNaN(this.y1) \|\| isNaN(this.y2)) {
	686	this.y1 = y;
	687	this.y2 = y;
	688	}
	689	if (y < this.y1) this.y1 = y;
	690	if (y > this.y2) this.y2 = y;
	691	}
	692	}
	693	this.addX = function(x) { this.addPoint(x, null); }
	694	this.addY = function(y) { this.addPoint(null, y); }
	695
	696	this.addBoundingBox = function(bb) {
	697	this.addPoint(bb.x1, bb.y1);
	698	this.addPoint(bb.x2, bb.y2);
	699	}
	700
	701	this.addQuadraticCurve = function(p0x, p0y, p1x, p1y, p2x, p2y) {
	702	var cp1x = p0x + 2/3 * (p1x - p0x); // CP1 = QP0 + 2/3 *(QP1-QP0)
	703	var cp1y = p0y + 2/3 * (p1y - p0y); // CP1 = QP0 + 2/3 *(QP1-QP0)
	704	var cp2x = cp1x + 1/3 * (p2x - p0x); // CP2 = CP1 + 1/3 *(QP2-QP0)
	705	var cp2y = cp1y + 1/3 * (p2y - p0y); // CP2 = CP1 + 1/3 *(QP2-QP0)
	706	this.addBezierCurve(p0x, p0y, cp1x, cp2x, cp1y, cp2y, p2x, p2y);
	707	}
	708
	709	this.addBezierCurve = function(p0x, p0y, p1x, p1y, p2x, p2y, p3x, p3y) {
	710	// from http://blog.hackers-cafe.net/2009/06/how-to-calculate-bezier-curves-bounding.html
	711	var p0 = [p0x, p0y], p1 = [p1x, p1y], p2 = [p2x, p2y], p3 = [p3x, p3y];
	712	this.addPoint(p0[0], p0[1]);
	713	this.addPoint(p3[0], p3[1]);
	714
	715	for (i=0; i<=1; i++) {
	716	var f = function(t) {
	717	return Math.pow(1-t, 3) * p0[i]
	718	+ 3 * Math.pow(1-t, 2) * t * p1[i]
	719	+ 3 * (1-t) * Math.pow(t, 2) * p2[i]
	720	+ Math.pow(t, 3) * p3[i];
	721	}
	722
	723	var b = 6 * p0[i] - 12 * p1[i] + 6 * p2[i];
	724	var a = -3 * p0[i] + 9 * p1[i] - 9 * p2[i] + 3 * p3[i];
	725	var c = 3 * p1[i] - 3 * p0[i];
	726
	727	if (a == 0) {
	728	if (b == 0) continue;
	729	var t = -c / b;
	730	if (0 < t && t < 1) {
	731	if (i == 0) this.addX(f(t));
	732	if (i == 1) this.addY(f(t));
	733	}
	734	continue;
	735	}
	736
	737	var b2ac = Math.pow(b, 2) - 4 * c * a;
	738	if (b2ac < 0) continue;
	739	var t1 = (-b + Math.sqrt(b2ac)) / (2 * a);
	740	if (0 < t1 && t1 < 1) {
	741	if (i == 0) this.addX(f(t1));
	742	if (i == 1) this.addY(f(t1));
	743	}
	744	var t2 = (-b - Math.sqrt(b2ac)) / (2 * a);
	745	if (0 < t2 && t2 < 1) {
	746	if (i == 0) this.addX(f(t2));
	747	if (i == 1) this.addY(f(t2));
	748	}
	749	}
	750	}
	751
	752	this.isPointInBox = function(x, y) {
	753	return (this.x1 <= x && x <= this.x2 && this.y1 <= y && y <= this.y2);
	754	}
	755
	756	this.addPoint(x1, y1);
	757	this.addPoint(x2, y2);
	758	}
	759
	760	// transforms
	761	svg.Transform = function(v) {
	762	var that = this;
	763	this.Type = {}
	764
	765	// translate
	766	this.Type.translate = function(s) {
	767	this.p = svg.CreatePoint(s);
	768	this.apply = function(ctx) {
	769	ctx.translate(this.p.x \|\| 0.0, this.p.y \|\| 0.0);
	770	}
	771	this.applyToPoint = function(p) {
	772	p.applyTransform([1, 0, 0, 1, this.p.x \|\| 0.0, this.p.y \|\| 0.0]);
	773	}
	774	}
	775
	776	// rotate
	777	this.Type.rotate = function(s) {
	778	var a = svg.ToNumberArray(s);
	779	this.angle = new svg.Property('angle', a[0]);
	780	this.cx = a[1] \|\| 0;
	781	this.cy = a[2] \|\| 0;
	782	this.apply = function(ctx) {
	783	ctx.translate(this.cx, this.cy);
	784	ctx.rotate(this.angle.Angle.toRadians());
	785	ctx.translate(-this.cx, -this.cy);
	786	}
	787	this.applyToPoint = function(p) {
	788	var a = this.angle.Angle.toRadians();
	789	p.applyTransform([1, 0, 0, 1, this.p.x \|\| 0.0, this.p.y \|\| 0.0]);
	790	p.applyTransform([Math.cos(a), Math.sin(a), -Math.sin(a), Math.cos(a), 0, 0]);
	791	p.applyTransform([1, 0, 0, 1, -this.p.x \|\| 0.0, -this.p.y \|\| 0.0]);
	792	}
	793	}
	794
	795	this.Type.scale = function(s) {
	796	this.p = svg.CreatePoint(s);
	797	this.apply = function(ctx) {
	798	ctx.scale(this.p.x \|\| 1.0, this.p.y \|\| this.p.x \|\| 1.0);
	799	}
	800	this.applyToPoint = function(p) {
	801	p.applyTransform([this.p.x \|\| 0.0, 0, 0, this.p.y \|\| 0.0, 0, 0]);
	802	}
	803	}
	804
	805	this.Type.matrix = function(s) {
	806	this.m = svg.ToNumberArray(s);
	807	this.apply = function(ctx) {
	808	ctx.transform(this.m[0], this.m[1], this.m[2], this.m[3], this.m[4], this.m[5]);
	809	}
	810	this.applyToPoint = function(p) {
	811	p.applyTransform(this.m);
	812	}
	813	}
	814
	815	this.Type.SkewBase = function(s) {
	816	this.base = that.Type.matrix;
	817	this.base(s);
	818	this.angle = new svg.Property('angle', s);
	819	}
	820	this.Type.SkewBase.prototype = new this.Type.matrix;
	821
	822	this.Type.skewX = function(s) {
	823	this.base = that.Type.SkewBase;
	824	this.base(s);
	825	this.m = [1, 0, Math.tan(this.angle.Angle.toRadians()), 1, 0, 0];
	826	}
	827	this.Type.skewX.prototype = new this.Type.SkewBase;
	828
	829	this.Type.skewY = function(s) {
	830	this.base = that.Type.SkewBase;
	831	this.base(s);
	832	this.m = [1, Math.tan(this.angle.Angle.toRadians()), 0, 1, 0, 0];
	833	}
	834	this.Type.skewY.prototype = new this.Type.SkewBase;
	835
	836	this.transforms = [];
	837
	838	this.apply = function(ctx) {
	839	for (var i=0; i<this.transforms.length; i++) {
	840	this.transforms[i].apply(ctx);
	841	}
	842	}
	843
	844	this.applyToPoint = function(p) {
	845	for (var i=0; i<this.transforms.length; i++) {
	846	this.transforms[i].applyToPoint(p);
	847	}
	848	}
	849
	850	var data = svg.trim(svg.compressSpaces(v)).split(/\s(?=[a-z])/);
	851	for (var i=0; i<data.length; i++) {
	852	var type = data[i].split('(')[0];
	853	var s = data[i].split('(')[1].replace(')','');
	854	var transform = new this.Type[type](s);
	855	this.transforms.push(transform);
	856	}
	857	}
	858
	859	// aspect ratio
	860	svg.AspectRatio = function(ctx, aspectRatio, width, desiredWidth, height, desiredHeight, minX, minY, refX, refY) {
	861	// aspect ratio - http://www.w3.org/TR/SVG/coords.html#PreserveAspectRatioAttribute
	862	aspectRatio = svg.compressSpaces(aspectRatio);
	863	aspectRatio = aspectRatio.replace(/^defer\s/,''); // ignore defer
	864	var align = aspectRatio.split(' ')[0] \|\| 'xMidYMid';
	865	var meetOrSlice = aspectRatio.split(' ')[1] \|\| 'meet';
	866
	867	// calculate scale
	868	var scaleX = width / desiredWidth;
	869	var scaleY = height / desiredHeight;
	870	var scaleMin = Math.min(scaleX, scaleY);
	871	var scaleMax = Math.max(scaleX, scaleY);
	872	if (meetOrSlice == 'meet') { desiredWidth = scaleMin; desiredHeight = scaleMin; }
	873	if (meetOrSlice == 'slice') { desiredWidth = scaleMax; desiredHeight = scaleMax; }
	874
	875	refX = new svg.Property('refX', refX);
	876	refY = new svg.Property('refY', refY);
	877	if (refX.hasValue() && refY.hasValue()) {
	878	ctx.translate(-scaleMin * refX.Length.toPixels('x'), -scaleMin * refY.Length.toPixels('y'));
	879	}
	880	else {
	881	// align
	882	if (align.match(/^xMid/) && ((meetOrSlice == 'meet' && scaleMin == scaleY) \|\| (meetOrSlice == 'slice' && scaleMax == scaleY))) ctx.translate(width / 2.0 - desiredWidth / 2.0, 0);
	883	if (align.match(/YMid$/) && ((meetOrSlice == 'meet' && scaleMin == scaleX) \|\| (meetOrSlice == 'slice' && scaleMax == scaleX))) ctx.translate(0, height / 2.0 - desiredHeight / 2.0);
	884	if (align.match(/^xMax/) && ((meetOrSlice == 'meet' && scaleMin == scaleY) \|\| (meetOrSlice == 'slice' && scaleMax == scaleY))) ctx.translate(width - desiredWidth, 0);
	885	if (align.match(/YMax$/) && ((meetOrSlice == 'meet' && scaleMin == scaleX) \|\| (meetOrSlice == 'slice' && scaleMax == scaleX))) ctx.translate(0, height - desiredHeight);
	886	}
	887
	888	// scale
	889	if (align == 'none') ctx.scale(scaleX, scaleY);
	890	else if (meetOrSlice == 'meet') ctx.scale(scaleMin, scaleMin);
	891	else if (meetOrSlice == 'slice') ctx.scale(scaleMax, scaleMax);
	892
	893	// translate
	894	ctx.translate(minX == null ? 0 : -minX, minY == null ? 0 : -minY);
	895	}
	896
	897	// elements
	898	svg.Element = {}
	899
	900	svg.Element.ElementBase = function(node) {
	901	this.attributes = {};
	902	this.styles = {};
	903	this.children = [];
	904
	905	// get or create attribute
	906	this.attribute = function(name, createIfNotExists) {
	907	var a = this.attributes[name];
	908	if (a != null) return a;
	909
	910	a = new svg.Property(name, '');
	911	if (createIfNotExists == true) this.attributes[name] = a;
	912	return a;
	913	}
	914
	915	// get or create style, crawls up node tree
	916	this.style = function(name, createIfNotExists) {
	917	var s = this.styles[name];
	918	if (s != null) return s;
	919
	920	var a = this.attribute(name);
	921	if (a != null && a.hasValue()) {
	922	return a;
	923	}
	924
	925	var p = this.parent;
	926	if (p != null) {
	927	var ps = p.style(name);
	928	if (ps != null && ps.hasValue()) {
	929	return ps;
	930	}
	931	}
	932
	933	s = new svg.Property(name, '');
	934	if (createIfNotExists == true) this.styles[name] = s;
	935	return s;
	936	}
	937
	938	// base render
	939	this.render = function(ctx) {
	940	// don't render display=none
	941	if (this.style('display').value == 'none') return;
	942
	943	// don't render visibility=hidden
	944	if (this.attribute('visibility').value == 'hidden') return;
	945
	946	ctx.save();
	947	this.setContext(ctx);
	948	// mask
	949	if (this.attribute('mask').hasValue()) {
	950	var mask = this.attribute('mask').Definition.getDefinition();
	951	if (mask != null) mask.apply(ctx, this);
	952	}
	953	else if (this.style('filter').hasValue()) {
	954	var filter = this.style('filter').Definition.getDefinition();
	955	if (filter != null) filter.apply(ctx, this);
	956	}
	957	else this.renderChildren(ctx);
	958	this.clearContext(ctx);
	959	ctx.restore();
	960	}
	961
	962	// base set context
	963	this.setContext = function(ctx) {
	964	// OVERRIDE ME!
	965	}
	966
	967	// base clear context
	968	this.clearContext = function(ctx) {
	969	// OVERRIDE ME!
	970	}
	971
	972	// base render children
	973	this.renderChildren = function(ctx) {
	974	for (var i=0; i<this.children.length; i++) {
	975	this.children[i].render(ctx);
	976	}
	977	}
	978
	979	this.addChild = function(childNode, create) {
	980	var child = childNode;
	981	if (create) child = svg.CreateElement(childNode);
	982	child.parent = this;
	983	this.children.push(child);
	984	}
	985
	986	if (node != null && node.nodeType == 1) { //ELEMENT_NODE
	987	// add children
	988	for (var i=0; i<node.childNodes.length; i++) {
	989	var childNode = node.childNodes[i];
	990	if (childNode.nodeType == 1) this.addChild(childNode, true); //ELEMENT_NODE
	991	}
	992
	993	// add attributes
	994	for (var i=0; i<node.attributes.length; i++) {
	995	var attribute = node.attributes[i];
	996	this.attributes[attribute.nodeName] = new svg.Property(attribute.nodeName, attribute.nodeValue);
	997	}
	998
	999	// add tag styles
	1000	var styles = svg.Styles[node.nodeName];
	1001	if (styles != null) {
	1002	for (var name in styles) {
	1003	this.styles[name] = styles[name];
	1004	}
	1005	}
	1006
	1007	// add class styles
	1008	if (this.attribute('class').hasValue()) {
	1009	var classes = svg.compressSpaces(this.attribute('class').value).split(' ');
	1010	for (var j=0; j<classes.length; j++) {
	1011	styles = svg.Styles['.'+classes[j]];
	1012	if (styles != null) {
	1013	for (var name in styles) {
	1014	this.styles[name] = styles[name];
	1015	}
	1016	}
	1017	styles = svg.Styles[node.nodeName+'.'+classes[j]];
	1018	if (styles != null) {
	1019	for (var name in styles) {
	1020	this.styles[name] = styles[name];
	1021	}
	1022	}
	1023	}
	1024	}
	1025
	1026	// add inline styles
	1027	if (this.attribute('style').hasValue()) {
	1028	var styles = this.attribute('style').value.split(';');
	1029	for (var i=0; i<styles.length; i++) {
	1030	if (svg.trim(styles[i]) != '') {
	1031	var style = styles[i].split(':');
	1032	var name = svg.trim(style[0]);
	1033	var value = svg.trim(style[1]);
	1034	this.styles[name] = new svg.Property(name, value);
	1035	}
	1036	}
	1037	}
	1038
	1039	// add id
	1040	if (this.attribute('id').hasValue()) {
	1041	if (svg.Definitions[this.attribute('id').value] == null) {
	1042	svg.Definitions[this.attribute('id').value] = this;
	1043	}
	1044	}
	1045	}
	1046	}
	1047
	1048	svg.Element.RenderedElementBase = function(node) {
	1049	this.base = svg.Element.ElementBase;
	1050	this.base(node);
	1051
	1052	this.setContext = function(ctx) {
	1053	// fill
	1054	if (this.style('fill').Definition.isUrl()) {
	1055	var fs = this.style('fill').Definition.getFillStyle(this);
	1056	if (fs != null) ctx.fillStyle = fs;
	1057	}
	1058	else if (this.style('fill').hasValue()) {
	1059	var fillStyle = this.style('fill');
	1060	if (this.style('fill-opacity').hasValue()) fillStyle = fillStyle.Color.addOpacity(this.style('fill-opacity').value);
	1061	ctx.fillStyle = (fillStyle.value == 'none' ? 'rgba(0,0,0,0)' : fillStyle.value);
	1062	}
	1063
	1064	// stroke
	1065	if (this.style('stroke').Definition.isUrl()) {
	1066	var fs = this.style('stroke').Definition.getFillStyle(this);
	1067	if (fs != null) ctx.strokeStyle = fs;
	1068	}
	1069	else if (this.style('stroke').hasValue()) {
	1070	var strokeStyle = this.style('stroke');
	1071	if (this.style('stroke-opacity').hasValue()) strokeStyle = strokeStyle.Color.addOpacity(this.style('stroke-opacity').value);
	1072	ctx.strokeStyle = (strokeStyle.value == 'none' ? 'rgba(0,0,0,0)' : strokeStyle.value);
	1073	}
	1074	if (this.style('stroke-width').hasValue()) ctx.lineWidth = this.style('stroke-width').Length.toPixels();
	1075	if (this.style('stroke-linecap').hasValue()) ctx.lineCap = this.style('stroke-linecap').value;
	1076	if (this.style('stroke-linejoin').hasValue()) ctx.lineJoin = this.style('stroke-linejoin').value;
	1077	if (this.style('stroke-miterlimit').hasValue()) ctx.miterLimit = this.style('stroke-miterlimit').value;
	1078
	1079	// font
	1080	if (typeof(ctx.font) != 'undefined') {
	1081	ctx.font = svg.Font.CreateFont(
	1082	this.style('font-style').value,
	1083	this.style('font-variant').value,
	1084	this.style('font-weight').value,
	1085	this.style('font-size').hasValue() ? this.style('font-size').Length.toPixels() + 'px' : '',
	1086	this.style('font-family').value).toString();
	1087	}
	1088
	1089	// transform
	1090	if (this.attribute('transform').hasValue()) {
	1091	var transform = new svg.Transform(this.attribute('transform').value);
	1092	transform.apply(ctx);
	1093	}
	1094
	1095	// clip
	1096	if (this.attribute('clip-path').hasValue()) {
	1097	var clip = this.attribute('clip-path').Definition.getDefinition();
	1098	if (clip != null) clip.apply(ctx);
	1099	}
	1100
	1101	// opacity
	1102	if (this.style('opacity').hasValue()) {
	1103	ctx.globalAlpha = this.style('opacity').numValue();
	1104	}
	1105	}
	1106	}
	1107	svg.Element.RenderedElementBase.prototype = new svg.Element.ElementBase;
	1108
	1109	svg.Element.PathElementBase = function(node) {
	1110	this.base = svg.Element.RenderedElementBase;
	1111	this.base(node);
	1112
	1113	this.path = function(ctx) {
	1114	if (ctx != null) ctx.beginPath();
	1115	return new svg.BoundingBox();
	1116	}
	1117
	1118	this.renderChildren = function(ctx) {
	1119	this.path(ctx);
	1120	svg.Mouse.checkPath(this, ctx);
	1121	if (ctx.fillStyle != '') ctx.fill();
	1122	if (ctx.strokeStyle != '') ctx.stroke();
	1123
	1124	var markers = this.getMarkers();
	1125	if (markers != null) {
	1126	if (this.style('marker-start').Definition.isUrl()) {
	1127	var marker = this.style('marker-start').Definition.getDefinition();
	1128	marker.render(ctx, markers[0][0], markers[0][1]);
	1129	}
	1130	if (this.style('marker-mid').Definition.isUrl()) {
	1131	var marker = this.style('marker-mid').Definition.getDefinition();
	1132	for (var i=1;i<markers.length-1;i++) {
	1133	marker.render(ctx, markers[i][0], markers[i][1]);
	1134	}
	1135	}
	1136	if (this.style('marker-end').Definition.isUrl()) {
	1137	var marker = this.style('marker-end').Definition.getDefinition();
	1138	marker.render(ctx, markers[markers.length-1][0], markers[markers.length-1][1]);
	1139	}
	1140	}
	1141	}
	1142
	1143	this.getBoundingBox = function() {
	1144	return this.path();
	1145	}
	1146
	1147	this.getMarkers = function() {
	1148	return null;
	1149	}
	1150	}
	1151	svg.Element.PathElementBase.prototype = new svg.Element.RenderedElementBase;
	1152
	1153	// svg element
	1154	svg.Element.svg = function(node) {
	1155	this.base = svg.Element.RenderedElementBase;
	1156	this.base(node);
	1157
	1158	this.baseClearContext = this.clearContext;
	1159	this.clearContext = function(ctx) {
	1160	this.baseClearContext(ctx);
	1161	svg.ViewPort.RemoveCurrent();
	1162	}
	1163
	1164	this.baseSetContext = this.setContext;
	1165	this.setContext = function(ctx) {
	1166	// initial values
	1167	ctx.strokeStyle = 'rgba(0,0,0,0)';
	1168	ctx.lineCap = 'butt';
	1169	ctx.lineJoin = 'miter';
	1170	ctx.miterLimit = 4;
	1171
	1172	this.baseSetContext(ctx);
	1173
	1174	// create new view port
	1175	if (this.attribute('x').hasValue() && this.attribute('y').hasValue()) {
	1176	ctx.translate(this.attribute('x').Length.toPixels('x'), this.attribute('y').Length.toPixels('y'));
	1177	}
	1178
	1179	var width = svg.ViewPort.width();
	1180	var height = svg.ViewPort.height();
	1181	if (typeof(this.root) == 'undefined' && this.attribute('width').hasValue() && this.attribute('height').hasValue()) {
	1182	width = this.attribute('width').Length.toPixels('x');
	1183	height = this.attribute('height').Length.toPixels('y');
	1184
	1185	var x = 0;
	1186	var y = 0;
	1187	if (this.attribute('refX').hasValue() && this.attribute('refY').hasValue()) {
	1188	x = -this.attribute('refX').Length.toPixels('x');
	1189	y = -this.attribute('refY').Length.toPixels('y');
	1190	}
	1191
	1192	ctx.beginPath();
	1193	ctx.moveTo(x, y);
	1194	ctx.lineTo(width, y);
	1195	ctx.lineTo(width, height);
	1196	ctx.lineTo(x, height);
	1197	ctx.closePath();
	1198	ctx.clip();
	1199	}
	1200	svg.ViewPort.SetCurrent(width, height);
	1201
	1202	// viewbox
	1203	if (this.attribute('viewBox').hasValue()) {
	1204	var viewBox = svg.ToNumberArray(this.attribute('viewBox').value);
	1205	var minX = viewBox[0];
	1206	var minY = viewBox[1];
	1207	width = viewBox[2];
	1208	height = viewBox[3];
	1209
	1210	svg.AspectRatio(ctx,
	1211	this.attribute('preserveAspectRatio').value,
	1212	svg.ViewPort.width(),
	1213	width,
	1214	svg.ViewPort.height(),
	1215	height,
	1216	minX,
	1217	minY,
	1218	this.attribute('refX').value,
	1219	this.attribute('refY').value);
	1220
	1221	svg.ViewPort.RemoveCurrent();
	1222	svg.ViewPort.SetCurrent(viewBox[2], viewBox[3]);
	1223	}
	1224	}
	1225	}
	1226	svg.Element.svg.prototype = new svg.Element.RenderedElementBase;
	1227
	1228	// rect element
	1229	svg.Element.rect = function(node) {
	1230	this.base = svg.Element.PathElementBase;
	1231	this.base(node);
	1232
	1233	this.path = function(ctx) {
	1234	var x = this.attribute('x').Length.toPixels('x');
	1235	var y = this.attribute('y').Length.toPixels('y');
	1236	var width = this.attribute('width').Length.toPixels('x');
	1237	var height = this.attribute('height').Length.toPixels('y');
	1238	var rx = this.attribute('rx').Length.toPixels('x');
	1239	var ry = this.attribute('ry').Length.toPixels('y');
	1240	if (this.attribute('rx').hasValue() && !this.attribute('ry').hasValue()) ry = rx;
	1241	if (this.attribute('ry').hasValue() && !this.attribute('rx').hasValue()) rx = ry;
	1242
	1243	if (ctx != null) {
	1244	ctx.beginPath();
	1245	ctx.moveTo(x + rx, y);
	1246	ctx.lineTo(x + width - rx, y);
	1247	ctx.quadraticCurveTo(x + width, y, x + width, y + ry)
	1248	ctx.lineTo(x + width, y + height - ry);
	1249	ctx.quadraticCurveTo(x + width, y + height, x + width - rx, y + height)
	1250	ctx.lineTo(x + rx, y + height);
	1251	ctx.quadraticCurveTo(x, y + height, x, y + height - ry)
	1252	ctx.lineTo(x, y + ry);
	1253	ctx.quadraticCurveTo(x, y, x + rx, y)
	1254	ctx.closePath();
	1255	}
	1256
	1257	return new svg.BoundingBox(x, y, x + width, y + height);
	1258	}
	1259	}
	1260	svg.Element.rect.prototype = new svg.Element.PathElementBase;
	1261
	1262	// circle element
	1263	svg.Element.circle = function(node) {
	1264	this.base = svg.Element.PathElementBase;
	1265	this.base(node);
	1266
	1267	this.path = function(ctx) {
	1268	var cx = this.attribute('cx').Length.toPixels('x');
	1269	var cy = this.attribute('cy').Length.toPixels('y');
	1270	var r = this.attribute('r').Length.toPixels();
	1271
	1272	if (ctx != null) {
	1273	ctx.beginPath();
	1274	ctx.arc(cx, cy, r, 0, Math.PI * 2, true);
	1275	ctx.closePath();
	1276	}
	1277
	1278	return new svg.BoundingBox(cx - r, cy - r, cx + r, cy + r);
	1279	}
	1280	}
	1281	svg.Element.circle.prototype = new svg.Element.PathElementBase;
	1282
	1283	// ellipse element
	1284	svg.Element.ellipse = function(node) {
	1285	this.base = svg.Element.PathElementBase;
	1286	this.base(node);
	1287
	1288	this.path = function(ctx) {
	1289	var KAPPA = 4 * ((Math.sqrt(2) - 1) / 3);
	1290	var rx = this.attribute('rx').Length.toPixels('x');
	1291	var ry = this.attribute('ry').Length.toPixels('y');
	1292	var cx = this.attribute('cx').Length.toPixels('x');
	1293	var cy = this.attribute('cy').Length.toPixels('y');
	1294
	1295	if (ctx != null) {
	1296	ctx.beginPath();
	1297	ctx.moveTo(cx, cy - ry);
	1298	ctx.bezierCurveTo(cx + (KAPPA * rx), cy - ry, cx + rx, cy - (KAPPA * ry), cx + rx, cy);
	1299	ctx.bezierCurveTo(cx + rx, cy + (KAPPA * ry), cx + (KAPPA * rx), cy + ry, cx, cy + ry);
	1300	ctx.bezierCurveTo(cx - (KAPPA * rx), cy + ry, cx - rx, cy + (KAPPA * ry), cx - rx, cy);
	1301	ctx.bezierCurveTo(cx - rx, cy - (KAPPA * ry), cx - (KAPPA * rx), cy - ry, cx, cy - ry);
	1302	ctx.closePath();
	1303	}
	1304
	1305	return new svg.BoundingBox(cx - rx, cy - ry, cx + rx, cy + ry);
	1306	}
	1307	}
	1308	svg.Element.ellipse.prototype = new svg.Element.PathElementBase;
	1309
	1310	// line element
	1311	svg.Element.line = function(node) {
	1312	this.base = svg.Element.PathElementBase;
	1313	this.base(node);
	1314
	1315	this.getPoints = function() {
	1316	return [
	1317	new svg.Point(this.attribute('x1').Length.toPixels('x'), this.attribute('y1').Length.toPixels('y')),
	1318	new svg.Point(this.attribute('x2').Length.toPixels('x'), this.attribute('y2').Length.toPixels('y'))];
	1319	}
	1320
	1321	this.path = function(ctx) {
	1322	var points = this.getPoints();
	1323
	1324	if (ctx != null) {
	1325	ctx.beginPath();
	1326	ctx.moveTo(points[0].x, points[0].y);
	1327	ctx.lineTo(points[1].x, points[1].y);
	1328	}
	1329
	1330	return new svg.BoundingBox(points[0].x, points[0].y, points[1].x, points[1].y);
	1331	}
	1332
	1333	this.getMarkers = function() {
	1334	var points = this.getPoints();
	1335	var a = points[0].angleTo(points[1]);
	1336	return [[points[0], a], [points[1], a]];
	1337	}
	1338	}
	1339	svg.Element.line.prototype = new svg.Element.PathElementBase;
	1340
	1341	// polyline element
	1342	svg.Element.polyline = function(node) {
	1343	this.base = svg.Element.PathElementBase;
	1344	this.base(node);
	1345
	1346	this.points = svg.CreatePath(this.attribute('points').value);
	1347	this.path = function(ctx) {
	1348	var bb = new svg.BoundingBox(this.points[0].x, this.points[0].y);
	1349	if (ctx != null) {
	1350	ctx.beginPath();
	1351	ctx.moveTo(this.points[0].x, this.points[0].y);
	1352	}
	1353	for (var i=1; i<this.points.length; i++) {
	1354	bb.addPoint(this.points[i].x, this.points[i].y);
	1355	if (ctx != null) ctx.lineTo(this.points[i].x, this.points[i].y);
	1356	}
	1357	return bb;
	1358	}
	1359
	1360	this.getMarkers = function() {
	1361	var markers = [];
	1362	for (var i=0; i<this.points.length - 1; i++) {
	1363	markers.push([this.points[i], this.points[i].angleTo(this.points[i+1])]);
	1364	}
	1365	markers.push([this.points[this.points.length-1], markers[markers.length-1][1]]);
	1366	return markers;
	1367	}
	1368	}
	1369	svg.Element.polyline.prototype = new svg.Element.PathElementBase;
	1370
	1371	// polygon element
	1372	svg.Element.polygon = function(node) {
	1373	this.base = svg.Element.polyline;
	1374	this.base(node);
	1375
	1376	this.basePath = this.path;
	1377	this.path = function(ctx) {
	1378	var bb = this.basePath(ctx);
	1379	if (ctx != null) {
	1380	ctx.lineTo(this.points[0].x, this.points[0].y);
	1381	ctx.closePath();
	1382	}
	1383	return bb;
	1384	}
	1385	}
	1386	svg.Element.polygon.prototype = new svg.Element.polyline;
	1387
	1388	// path element
	1389	svg.Element.path = function(node) {
	1390	this.base = svg.Element.PathElementBase;
	1391	this.base(node);
	1392
	1393	var d = this.attribute('d').value;
	1394	// TODO: convert to real lexer based on http://www.w3.org/TR/SVG11/paths.html#PathDataBNF
	1395	d = d.replace(/,/gm,' '); // get rid of all commas
	1396	d = d.replace(/([MmZzLlHhVvCcSsQqTtAa])([MmZzLlHhVvCcSsQqTtAa])/gm,'$1 $2'); // separate commands from commands
	1397	d = d.replace(/([MmZzLlHhVvCcSsQqTtAa])([MmZzLlHhVvCcSsQqTtAa])/gm,'$1 $2'); // separate commands from commands
	1398	d = d.replace(/([MmZzLlHhVvCcSsQqTtAa])([^\s])/gm,'$1 $2'); // separate commands from points
	1399	d = d.replace(/([^\s])([MmZzLlHhVvCcSsQqTtAa])/gm,'$1 $2'); // separate commands from points
	1400	d = d.replace(/([0-9])([+\-])/gm,'$1 $2'); // separate digits when no comma
	1401	d = d.replace(/(\.[0-9]*)(\.)/gm,'$1 $2'); // separate digits when no comma
	1402	d = d.replace(/([Aa](\s+[0-9]+){3})\s+([01])\s*([01])/gm,'$1 $3 $4 '); // shorthand elliptical arc path syntax
	1403	d = svg.compressSpaces(d); // compress multiple spaces
	1404	d = svg.trim(d);
	1405	this.PathParser = new (function(d) {
	1406	this.tokens = d.split(' ');
	1407
	1408	this.reset = function() {
	1409	this.i = -1;
	1410	this.command = '';
	1411	this.previousCommand = '';
	1412	this.start = new svg.Point(0, 0);
	1413	this.control = new svg.Point(0, 0);
	1414	this.current = new svg.Point(0, 0);
	1415	this.points = [];
	1416	this.angles = [];
	1417	}
	1418
	1419	this.isEnd = function() {
	1420	return this.i >= this.tokens.length - 1;
	1421	}
	1422
	1423	this.isCommandOrEnd = function() {
	1424	if (this.isEnd()) return true;
	1425	return this.tokens[this.i + 1].match(/^[A-Za-z]$/) != null;
	1426	}
	1427
	1428	this.isRelativeCommand = function() {
	1429	return this.command == this.command.toLowerCase();
	1430	}
	1431
	1432	this.getToken = function() {
	1433	this.i = this.i + 1;
	1434	return this.tokens[this.i];
	1435	}
	1436
	1437	this.getScalar = function() {
	1438	return parseFloat(this.getToken());
	1439	}
	1440
	1441	this.nextCommand = function() {
	1442	this.previousCommand = this.command;
	1443	this.command = this.getToken();
	1444	}
	1445
	1446	this.getPoint = function() {
	1447	var p = new svg.Point(this.getScalar(), this.getScalar());
	1448	return this.makeAbsolute(p);
	1449	}
	1450
	1451	this.getAsControlPoint = function() {
	1452	var p = this.getPoint();
	1453	this.control = p;
	1454	return p;
	1455	}
	1456
	1457	this.getAsCurrentPoint = function() {
	1458	var p = this.getPoint();
	1459	this.current = p;
	1460	return p;
	1461	}
	1462
	1463	this.getReflectedControlPoint = function() {
	1464	if (this.previousCommand.toLowerCase() != 'c' && this.previousCommand.toLowerCase() != 's') {
	1465	return this.current;
	1466	}
	1467
	1468	// reflect point
	1469	var p = new svg.Point(2 * this.current.x - this.control.x, 2 * this.current.y - this.control.y);
	1470	return p;
	1471	}
	1472
	1473	this.makeAbsolute = function(p) {
	1474	if (this.isRelativeCommand()) {
	1475	p.x = this.current.x + p.x;
	1476	p.y = this.current.y + p.y;
	1477	}
	1478	return p;
	1479	}
	1480
	1481	this.addMarker = function(p, from, priorTo) {
	1482	// if the last angle isn't filled in because we didn't have this point yet ...
	1483	if (priorTo != null && this.angles.length > 0 && this.angles[this.angles.length-1] == null) {
	1484	this.angles[this.angles.length-1] = this.points[this.points.length-1].angleTo(priorTo);
	1485	}
	1486	this.addMarkerAngle(p, from == null ? null : from.angleTo(p));
	1487	}
	1488
	1489	this.addMarkerAngle = function(p, a) {
	1490	this.points.push(p);
	1491	this.angles.push(a);
	1492	}
	1493
	1494	this.getMarkerPoints = function() { return this.points; }
	1495	this.getMarkerAngles = function() {
	1496	for (var i=0; i<this.angles.length; i++) {
	1497	if (this.angles[i] == null) {
	1498	for (var j=i+1; j<this.angles.length; j++) {
	1499	if (this.angles[j] != null) {
	1500	this.angles[i] = this.angles[j];
	1501	break;
	1502	}
	1503	}
	1504	}
	1505	}
	1506	return this.angles;
	1507	}
	1508	})(d);
	1509
	1510	this.path = function(ctx) {
	1511	var pp = this.PathParser;
	1512	pp.reset();
	1513
	1514	var bb = new svg.BoundingBox();
	1515	if (ctx != null) ctx.beginPath();
	1516	while (!pp.isEnd()) {
	1517	pp.nextCommand();
	1518	switch (pp.command.toUpperCase()) {
	1519	case 'M':
	1520	var p = pp.getAsCurrentPoint();
	1521	pp.addMarker(p);
	1522	bb.addPoint(p.x, p.y);
	1523	if (ctx != null) ctx.moveTo(p.x, p.y);
	1524	pp.start = pp.current;
	1525	while (!pp.isCommandOrEnd()) {
	1526	var p = pp.getAsCurrentPoint();
	1527	pp.addMarker(p, pp.start);
	1528	bb.addPoint(p.x, p.y);
	1529	if (ctx != null) ctx.lineTo(p.x, p.y);
	1530	}
	1531	break;
	1532	case 'L':
	1533	while (!pp.isCommandOrEnd()) {
	1534	var c = pp.current;
	1535	var p = pp.getAsCurrentPoint();
	1536	pp.addMarker(p, c);
	1537	bb.addPoint(p.x, p.y);
	1538	if (ctx != null) ctx.lineTo(p.x, p.y);
	1539	}
	1540	break;
	1541	case 'H':
	1542	while (!pp.isCommandOrEnd()) {
	1543	var newP = new svg.Point((pp.isRelativeCommand() ? pp.current.x : 0) + pp.getScalar(), pp.current.y);
	1544	pp.addMarker(newP, pp.current);
	1545	pp.current = newP;
	1546	bb.addPoint(pp.current.x, pp.current.y);
	1547	if (ctx != null) ctx.lineTo(pp.current.x, pp.current.y);
	1548	}
	1549	break;
	1550	case 'V':
	1551	while (!pp.isCommandOrEnd()) {
	1552	var newP = new svg.Point(pp.current.x, (pp.isRelativeCommand() ? pp.current.y : 0) + pp.getScalar());
	1553	pp.addMarker(newP, pp.current);
	1554	pp.current = newP;
	1555	bb.addPoint(pp.current.x, pp.current.y);
	1556	if (ctx != null) ctx.lineTo(pp.current.x, pp.current.y);
	1557	}
	1558	break;
	1559	case 'C':
	1560	while (!pp.isCommandOrEnd()) {
	1561	var curr = pp.current;
	1562	var p1 = pp.getPoint();
	1563	var cntrl = pp.getAsControlPoint();
	1564	var cp = pp.getAsCurrentPoint();
	1565	pp.addMarker(cp, cntrl, p1);
	1566	bb.addBezierCurve(curr.x, curr.y, p1.x, p1.y, cntrl.x, cntrl.y, cp.x, cp.y);
	1567	if (ctx != null) ctx.bezierCurveTo(p1.x, p1.y, cntrl.x, cntrl.y, cp.x, cp.y);
	1568	}
	1569	break;
	1570	case 'S':
	1571	while (!pp.isCommandOrEnd()) {
	1572	var curr = pp.current;
	1573	var p1 = pp.getReflectedControlPoint();
	1574	var cntrl = pp.getAsControlPoint();
	1575	var cp = pp.getAsCurrentPoint();
	1576	pp.addMarker(cp, cntrl, p1);
	1577	bb.addBezierCurve(curr.x, curr.y, p1.x, p1.y, cntrl.x, cntrl.y, cp.x, cp.y);
	1578	if (ctx != null) ctx.bezierCurveTo(p1.x, p1.y, cntrl.x, cntrl.y, cp.x, cp.y);
	1579	}
	1580	break;
	1581	case 'Q':
	1582	while (!pp.isCommandOrEnd()) {
	1583	var curr = pp.current;
	1584	var cntrl = pp.getAsControlPoint();
	1585	var cp = pp.getAsCurrentPoint();
	1586	pp.addMarker(cp, cntrl, cntrl);
	1587	bb.addQuadraticCurve(curr.x, curr.y, cntrl.x, cntrl.y, cp.x, cp.y);
	1588	if (ctx != null) ctx.quadraticCurveTo(cntrl.x, cntrl.y, cp.x, cp.y);
	1589	}
	1590	break;
	1591	case 'T':
	1592	while (!pp.isCommandOrEnd()) {
	1593	var curr = pp.current;
	1594	var cntrl = pp.getReflectedControlPoint();
	1595	pp.control = cntrl;
	1596	var cp = pp.getAsCurrentPoint();
	1597	pp.addMarker(cp, cntrl, cntrl);
	1598	bb.addQuadraticCurve(curr.x, curr.y, cntrl.x, cntrl.y, cp.x, cp.y);
	1599	if (ctx != null) ctx.quadraticCurveTo(cntrl.x, cntrl.y, cp.x, cp.y);
	1600	}
	1601	break;
	1602	case 'A':
	1603	while (!pp.isCommandOrEnd()) {
	1604	var curr = pp.current;
	1605	var rx = pp.getScalar();
	1606	var ry = pp.getScalar();
	1607	var xAxisRotation = pp.getScalar() * (Math.PI / 180.0);
	1608	var largeArcFlag = pp.getScalar();
	1609	var sweepFlag = pp.getScalar();
	1610	var cp = pp.getAsCurrentPoint();
	1611
	1612	// Conversion from endpoint to center parameterization
	1613	// http://www.w3.org/TR/SVG11/implnote.html#ArcImplementationNotes
	1614	// x1', y1'
	1615	var currp = new svg.Point(
	1616	Math.cos(xAxisRotation) * (curr.x - cp.x) / 2.0 + Math.sin(xAxisRotation) * (curr.y - cp.y) / 2.0,
	1617	-Math.sin(xAxisRotation) * (curr.x - cp.x) / 2.0 + Math.cos(xAxisRotation) * (curr.y - cp.y) / 2.0
	1618	);
	1619	// adjust radii
	1620	var l = Math.pow(currp.x,2)/Math.pow(rx,2)+Math.pow(currp.y,2)/Math.pow(ry,2);
	1621	if (l > 1) {
	1622	rx *= Math.sqrt(l);
	1623	ry *= Math.sqrt(l);
	1624	}
	1625	// cx', cy'
	1626	var s = (largeArcFlag == sweepFlag ? -1 : 1) * Math.sqrt(
	1627	((Math.pow(rx,2)Math.pow(ry,2))-(Math.pow(rx,2)Math.pow(currp.y,2))-(Math.pow(ry,2)*Math.pow(currp.x,2))) /
	1628	(Math.pow(rx,2)Math.pow(currp.y,2)+Math.pow(ry,2)Math.pow(currp.x,2))
	1629	);
	1630	if (isNaN(s)) s = 0;
	1631	var cpp = new svg.Point(s * rx * currp.y / ry, s * -ry * currp.x / rx);
	1632	// cx, cy
	1633	var centp = new svg.Point(
	1634	(curr.x + cp.x) / 2.0 + Math.cos(xAxisRotation) * cpp.x - Math.sin(xAxisRotation) * cpp.y,
	1635	(curr.y + cp.y) / 2.0 + Math.sin(xAxisRotation) * cpp.x + Math.cos(xAxisRotation) * cpp.y
	1636	);
	1637	// vector magnitude
	1638	var m = function(v) { return Math.sqrt(Math.pow(v[0],2) + Math.pow(v[1],2)); }
	1639	// ratio between two vectors
	1640	var r = function(u, v) { return (u[0]v[0]+u[1]v[1]) / (m(u)*m(v)) }
	1641	// angle between two vectors
	1642	var a = function(u, v) { return (u[0]v[1] < u[1]v[0] ? -1 : 1) * Math.acos(r(u,v)); }
	1643	// initial angle
	1644	var a1 = a([1,0], [(currp.x-cpp.x)/rx,(currp.y-cpp.y)/ry]);
	1645	// angle delta
	1646	var u = [(currp.x-cpp.x)/rx,(currp.y-cpp.y)/ry];
	1647	var v = [(-currp.x-cpp.x)/rx,(-currp.y-cpp.y)/ry];
	1648	var ad = a(u, v);
	1649	if (r(u,v) <= -1) ad = Math.PI;
	1650	if (r(u,v) >= 1) ad = 0;
	1651
	1652	if (sweepFlag == 0 && ad > 0) ad = ad - 2 * Math.PI;
	1653	if (sweepFlag == 1 && ad < 0) ad = ad + 2 * Math.PI;
	1654
	1655	// for markers
	1656	var halfWay = new svg.Point(
	1657	centp.x - rx * Math.cos((a1 + ad) / 2),
	1658	centp.y - ry * Math.sin((a1 + ad) / 2)
	1659	);
	1660	pp.addMarkerAngle(halfWay, (a1 + ad) / 2 + (sweepFlag == 0 ? 1 : -1) * Math.PI / 2);
	1661	pp.addMarkerAngle(cp, ad + (sweepFlag == 0 ? 1 : -1) * Math.PI / 2);
	1662
	1663	bb.addPoint(cp.x, cp.y); // TODO: this is too naive, make it better
	1664	if (ctx != null) {
	1665	var r = rx > ry ? rx : ry;
	1666	var sx = rx > ry ? 1 : rx / ry;
	1667	var sy = rx > ry ? ry / rx : 1;
	1668
	1669	ctx.translate(centp.x, centp.y);
	1670	ctx.rotate(xAxisRotation);
	1671	ctx.scale(sx, sy);
	1672	ctx.arc(0, 0, r, a1, a1 + ad, 1 - sweepFlag);
	1673	ctx.scale(1/sx, 1/sy);
	1674	ctx.rotate(-xAxisRotation);
	1675	ctx.translate(-centp.x, -centp.y);
	1676	}
	1677	}
	1678	break;
	1679	case 'Z':
	1680	if (ctx != null) ctx.closePath();
	1681	pp.current = pp.start;
	1682	}
	1683	}
	1684
	1685	return bb;
	1686	}
	1687
	1688	this.getMarkers = function() {
	1689	var points = this.PathParser.getMarkerPoints();
	1690	var angles = this.PathParser.getMarkerAngles();
	1691
	1692	var markers = [];
	1693	for (var i=0; i<points.length; i++) {
	1694	markers.push([points[i], angles[i]]);
	1695	}
	1696	return markers;
	1697	}
	1698	}
	1699	svg.Element.path.prototype = new svg.Element.PathElementBase;
	1700
	1701	// pattern element
	1702	svg.Element.pattern = function(node) {
	1703	this.base = svg.Element.ElementBase;
	1704	this.base(node);
	1705
	1706	this.createPattern = function(ctx, element) {
	1707	// render me using a temporary svg element
	1708	var tempSvg = new svg.Element.svg();
	1709	tempSvg.attributes['viewBox'] = new svg.Property('viewBox', this.attribute('viewBox').value);
	1710	tempSvg.attributes['x'] = new svg.Property('x', this.attribute('x').value);
	1711	tempSvg.attributes['y'] = new svg.Property('y', this.attribute('y').value);
	1712	tempSvg.attributes['width'] = new svg.Property('width', this.attribute('width').value);
	1713	tempSvg.attributes['height'] = new svg.Property('height', this.attribute('height').value);
	1714	tempSvg.children = this.children;
	1715
	1716	var c = document.createElement('canvas');
	1717	c.width = this.attribute('width').Length.toPixels('x');
	1718	c.height = this.attribute('height').Length.toPixels('y');
	1719	tempSvg.render(c.getContext('2d'));
	1720	return ctx.createPattern(c, 'repeat');
	1721	}
	1722	}
	1723	svg.Element.pattern.prototype = new svg.Element.ElementBase;
	1724
	1725	// marker element
	1726	svg.Element.marker = function(node) {
	1727	this.base = svg.Element.ElementBase;
	1728	this.base(node);
	1729
	1730	this.baseRender = this.render;
	1731	this.render = function(ctx, point, angle) {
	1732	ctx.translate(point.x, point.y);
	1733	if (this.attribute('orient').valueOrDefault('auto') == 'auto') ctx.rotate(angle);
	1734	if (this.attribute('markerUnits').valueOrDefault('strokeWidth') == 'strokeWidth') ctx.scale(ctx.lineWidth, ctx.lineWidth);
	1735	ctx.save();
	1736
	1737	// render me using a temporary svg element
	1738	var tempSvg = new svg.Element.svg();
	1739	tempSvg.attributes['viewBox'] = new svg.Property('viewBox', this.attribute('viewBox').value);
	1740	tempSvg.attributes['refX'] = new svg.Property('refX', this.attribute('refX').value);
	1741	tempSvg.attributes['refY'] = new svg.Property('refY', this.attribute('refY').value);
	1742	tempSvg.attributes['width'] = new svg.Property('width', this.attribute('markerWidth').value);
	1743	tempSvg.attributes['height'] = new svg.Property('height', this.attribute('markerHeight').value);
	1744	tempSvg.attributes['fill'] = new svg.Property('fill', this.attribute('fill').valueOrDefault('black'));
	1745	tempSvg.attributes['stroke'] = new svg.Property('stroke', this.attribute('stroke').valueOrDefault('none'));
	1746	tempSvg.children = this.children;
	1747	tempSvg.render(ctx);
	1748
	1749	ctx.restore();
	1750	if (this.attribute('markerUnits').valueOrDefault('strokeWidth') == 'strokeWidth') ctx.scale(1/ctx.lineWidth, 1/ctx.lineWidth);
	1751	if (this.attribute('orient').valueOrDefault('auto') == 'auto') ctx.rotate(-angle);
	1752	ctx.translate(-point.x, -point.y);
	1753	}
	1754	}
	1755	svg.Element.marker.prototype = new svg.Element.ElementBase;
	1756
	1757	// definitions element
	1758	svg.Element.defs = function(node) {
	1759	this.base = svg.Element.ElementBase;
	1760	this.base(node);
	1761
	1762	this.render = function(ctx) {
	1763	// NOOP
	1764	}
	1765	}
	1766	svg.Element.defs.prototype = new svg.Element.ElementBase;
	1767
	1768	// base for gradients
	1769	svg.Element.GradientBase = function(node) {
	1770	this.base = svg.Element.ElementBase;
	1771	this.base(node);
	1772
	1773	this.gradientUnits = this.attribute('gradientUnits').valueOrDefault('objectBoundingBox');
	1774
	1775	this.stops = [];
	1776	for (var i=0; i<this.children.length; i++) {
	1777	var child = this.children[i];
	1778	this.stops.push(child);
	1779	}
	1780
	1781	this.getGradient = function() {
	1782	// OVERRIDE ME!
	1783	}
	1784
	1785	this.createGradient = function(ctx, element) {
	1786	var stopsContainer = this;
	1787	if (this.attribute('xlink:href').hasValue()) {
	1788	stopsContainer = this.attribute('xlink:href').Definition.getDefinition();
	1789	}
	1790
	1791	var g = this.getGradient(ctx, element);
	1792	for (var i=0; i<stopsContainer.stops.length; i++) {
	1793	g.addColorStop(stopsContainer.stops[i].offset, stopsContainer.stops[i].color);
	1794	}
	1795
	1796	if (this.attribute('gradientTransform').hasValue()) {
	1797	// render as transformed pattern on temporary canvas
	1798	var rootView = svg.ViewPort.viewPorts[0];
	1799
	1800	var rect = new svg.Element.rect();
	1801	rect.attributes['x'] = new svg.Property('x', -svg.MAX_VIRTUAL_PIXELS/3.0);
	1802	rect.attributes['y'] = new svg.Property('y', -svg.MAX_VIRTUAL_PIXELS/3.0);
	1803	rect.attributes['width'] = new svg.Property('width', svg.MAX_VIRTUAL_PIXELS);
	1804	rect.attributes['height'] = new svg.Property('height', svg.MAX_VIRTUAL_PIXELS);
	1805
	1806	var group = new svg.Element.g();
	1807	group.attributes['transform'] = new svg.Property('transform', this.attribute('gradientTransform').value);
	1808	group.children = [ rect ];
	1809
	1810	var tempSvg = new svg.Element.svg();
	1811	tempSvg.attributes['x'] = new svg.Property('x', 0);
	1812	tempSvg.attributes['y'] = new svg.Property('y', 0);
	1813	tempSvg.attributes['width'] = new svg.Property('width', rootView.width);
	1814	tempSvg.attributes['height'] = new svg.Property('height', rootView.height);
	1815	tempSvg.children = [ group ];
	1816
	1817	var c = document.createElement('canvas');
	1818	c.width = rootView.width;
	1819	c.height = rootView.height;
	1820	var tempCtx = c.getContext('2d');
	1821	tempCtx.fillStyle = g;
	1822	tempSvg.render(tempCtx);
	1823	return tempCtx.createPattern(c, 'no-repeat');
	1824	}
	1825
	1826	return g;
	1827	}
	1828	}
	1829	svg.Element.GradientBase.prototype = new svg.Element.ElementBase;
	1830
	1831	// linear gradient element
	1832	svg.Element.linearGradient = function(node) {
	1833	this.base = svg.Element.GradientBase;
	1834	this.base(node);
	1835
	1836	this.getGradient = function(ctx, element) {
	1837	var bb = element.getBoundingBox();
	1838
	1839	var x1 = (this.gradientUnits == 'objectBoundingBox'
	1840	? bb.x() + bb.width() * this.attribute('x1').numValue()
	1841	: this.attribute('x1').Length.toPixels('x'));
	1842	var y1 = (this.gradientUnits == 'objectBoundingBox'
	1843	? bb.y() + bb.height() * this.attribute('y1').numValue()
	1844	: this.attribute('y1').Length.toPixels('y'));
	1845	var x2 = (this.gradientUnits == 'objectBoundingBox'
	1846	? bb.x() + bb.width() * this.attribute('x2').numValue()
	1847	: this.attribute('x2').Length.toPixels('x'));
	1848	var y2 = (this.gradientUnits == 'objectBoundingBox'
	1849	? bb.y() + bb.height() * this.attribute('y2').numValue()
	1850	: this.attribute('y2').Length.toPixels('y'));
	1851
	1852	return ctx.createLinearGradient(x1, y1, x2, y2);
	1853	}
	1854	}
	1855	svg.Element.linearGradient.prototype = new svg.Element.GradientBase;
	1856
	1857	// radial gradient element
	1858	svg.Element.radialGradient = function(node) {
	1859	this.base = svg.Element.GradientBase;
	1860	this.base(node);
	1861
	1862	this.getGradient = function(ctx, element) {
	1863	var bb = element.getBoundingBox();
	1864
	1865	var cx = (this.gradientUnits == 'objectBoundingBox'
	1866	? bb.x() + bb.width() * this.attribute('cx').numValue()
	1867	: this.attribute('cx').Length.toPixels('x'));
	1868	var cy = (this.gradientUnits == 'objectBoundingBox'
	1869	? bb.y() + bb.height() * this.attribute('cy').numValue()
	1870	: this.attribute('cy').Length.toPixels('y'));
	1871
	1872	var fx = cx;
	1873	var fy = cy;
	1874	if (this.attribute('fx').hasValue()) {
	1875	fx = (this.gradientUnits == 'objectBoundingBox'
	1876	? bb.x() + bb.width() * this.attribute('fx').numValue()
	1877	: this.attribute('fx').Length.toPixels('x'));
	1878	}
	1879	if (this.attribute('fy').hasValue()) {
	1880	fy = (this.gradientUnits == 'objectBoundingBox'
	1881	? bb.y() + bb.height() * this.attribute('fy').numValue()
	1882	: this.attribute('fy').Length.toPixels('y'));
	1883	}
	1884
	1885	var r = (this.gradientUnits == 'objectBoundingBox'
	1886	? (bb.width() + bb.height()) / 2.0 * this.attribute('r').numValue()
	1887	: this.attribute('r').Length.toPixels());
	1888
	1889	return ctx.createRadialGradient(fx, fy, 0, cx, cy, r);
	1890	}
	1891	}
	1892	svg.Element.radialGradient.prototype = new svg.Element.GradientBase;
	1893
	1894	// gradient stop element
	1895	svg.Element.stop = function(node) {
	1896	this.base = svg.Element.ElementBase;
	1897	this.base(node);
	1898
	1899	this.offset = this.attribute('offset').numValue();
	1900
	1901	var stopColor = this.style('stop-color');
	1902	if (this.style('stop-opacity').hasValue()) stopColor = stopColor.Color.addOpacity(this.style('stop-opacity').value);
	1903	this.color = stopColor.value;
	1904	}
	1905	svg.Element.stop.prototype = new svg.Element.ElementBase;
	1906
	1907	// animation base element
	1908	svg.Element.AnimateBase = function(node) {
	1909	this.base = svg.Element.ElementBase;
	1910	this.base(node);
	1911
	1912	svg.Animations.push(this);
	1913
	1914	this.duration = 0.0;
	1915	this.begin = this.attribute('begin').Time.toMilliseconds();
	1916	this.maxDuration = this.begin + this.attribute('dur').Time.toMilliseconds();
	1917
	1918	this.getProperty = function() {
	1919	var attributeType = this.attribute('attributeType').value;
	1920	var attributeName = this.attribute('attributeName').value;
	1921
	1922	if (attributeType == 'CSS') {
	1923	return this.parent.style(attributeName, true);
	1924	}
	1925	return this.parent.attribute(attributeName, true);
	1926	};
	1927
	1928	this.initialValue = null;
	1929	this.removed = false;
	1930
	1931	this.calcValue = function() {
	1932	// OVERRIDE ME!
	1933	return '';
	1934	}
	1935
	1936	this.update = function(delta) {
	1937	// set initial value
	1938	if (this.initialValue == null) {
	1939	this.initialValue = this.getProperty().value;
	1940	}
	1941
	1942	// if we're past the end time
	1943	if (this.duration > this.maxDuration) {
	1944	// loop for indefinitely repeating animations
	1945	if (this.attribute('repeatCount').value == 'indefinite') {
	1946	this.duration = 0.0
	1947	}
	1948	else if (this.attribute('fill').valueOrDefault('remove') == 'remove' && !this.removed) {
	1949	this.removed = true;
	1950	this.getProperty().value = this.initialValue;
	1951	return true;
	1952	}
	1953	else {
	1954	return false; // no updates made
	1955	}
	1956	}
	1957	this.duration = this.duration + delta;
	1958
	1959	// if we're past the begin time
	1960	var updated = false;
	1961	if (this.begin < this.duration) {
	1962	var newValue = this.calcValue(); // tween
	1963
	1964	if (this.attribute('type').hasValue()) {
	1965	// for transform, etc.
	1966	var type = this.attribute('type').value;
	1967	newValue = type + '(' + newValue + ')';
	1968	}
	1969
	1970	this.getProperty().value = newValue;
	1971	updated = true;
	1972	}
	1973
	1974	return updated;
	1975	}
	1976
	1977	// fraction of duration we've covered
	1978	this.progress = function() {
	1979	return ((this.duration - this.begin) / (this.maxDuration - this.begin));
	1980	}
	1981	}
	1982	svg.Element.AnimateBase.prototype = new svg.Element.ElementBase;
	1983
	1984	// animate element
	1985	svg.Element.animate = function(node) {
	1986	this.base = svg.Element.AnimateBase;
	1987	this.base(node);
	1988
	1989	this.calcValue = function() {
	1990	var from = this.attribute('from').numValue();
	1991	var to = this.attribute('to').numValue();
	1992
	1993	// tween value linearly
	1994	return from + (to - from) * this.progress();
	1995	};
	1996	}
	1997	svg.Element.animate.prototype = new svg.Element.AnimateBase;
	1998
	1999	// animate color element
	2000	svg.Element.animateColor = function(node) {
	2001	this.base = svg.Element.AnimateBase;
	2002	this.base(node);
	2003
	2004	this.calcValue = function() {
	2005	var from = new RGBColor(this.attribute('from').value);
	2006	var to = new RGBColor(this.attribute('to').value);
	2007
	2008	if (from.ok && to.ok) {
	2009	// tween color linearly
	2010	var r = from.r + (to.r - from.r) * this.progress();
	2011	var g = from.g + (to.g - from.g) * this.progress();
	2012	var b = from.b + (to.b - from.b) * this.progress();
	2013	return 'rgb('+parseInt(r,10)+','+parseInt(g,10)+','+parseInt(b,10)+')';
	2014	}
	2015	return this.attribute('from').value;
	2016	};
	2017	}
	2018	svg.Element.animateColor.prototype = new svg.Element.AnimateBase;
	2019
	2020	// animate transform element
	2021	svg.Element.animateTransform = function(node) {
	2022	this.base = svg.Element.animate;
	2023	this.base(node);
	2024	}
	2025	svg.Element.animateTransform.prototype = new svg.Element.animate;
	2026
	2027	// font element
	2028	svg.Element.font = function(node) {
	2029	this.base = svg.Element.ElementBase;
	2030	this.base(node);
	2031
	2032	this.horizAdvX = this.attribute('horiz-adv-x').numValue();
	2033
	2034	this.isRTL = false;
	2035	this.isArabic = false;
	2036	this.fontFace = null;
	2037	this.missingGlyph = null;
	2038	this.glyphs = [];
	2039	for (var i=0; i<this.children.length; i++) {
	2040	var child = this.children[i];
	2041	if (child.type == 'font-face') {
	2042	this.fontFace = child;
	2043	if (child.style('font-family').hasValue()) {
	2044	svg.Definitions[child.style('font-family').value] = this;
	2045	}
	2046	}
	2047	else if (child.type == 'missing-glyph') this.missingGlyph = child;
	2048	else if (child.type == 'glyph') {
	2049	if (child.arabicForm != '') {
	2050	this.isRTL = true;
	2051	this.isArabic = true;
	2052	if (typeof(this.glyphs[child.unicode]) == 'undefined') this.glyphs[child.unicode] = [];
	2053	this.glyphs[child.unicode][child.arabicForm] = child;
	2054	}
	2055	else {
	2056	this.glyphs[child.unicode] = child;
	2057	}
	2058	}
	2059	}
	2060	}
	2061	svg.Element.font.prototype = new svg.Element.ElementBase;
	2062
	2063	// font-face element
	2064	svg.Element.fontface = function(node) {
	2065	this.base = svg.Element.ElementBase;
	2066	this.base(node);
	2067
	2068	this.ascent = this.attribute('ascent').value;
	2069	this.descent = this.attribute('descent').value;
	2070	this.unitsPerEm = this.attribute('units-per-em').numValue();
	2071	}
	2072	svg.Element.fontface.prototype = new svg.Element.ElementBase;
	2073
	2074	// missing-glyph element
	2075	svg.Element.missingglyph = function(node) {
	2076	this.base = svg.Element.path;
	2077	this.base(node);
	2078
	2079	this.horizAdvX = 0;
	2080	}
	2081	svg.Element.missingglyph.prototype = new svg.Element.path;
	2082
	2083	// glyph element
	2084	svg.Element.glyph = function(node) {
	2085	this.base = svg.Element.path;
	2086	this.base(node);
	2087
	2088	this.horizAdvX = this.attribute('horiz-adv-x').numValue();
	2089	this.unicode = this.attribute('unicode').value;
	2090	this.arabicForm = this.attribute('arabic-form').value;
	2091	}
	2092	svg.Element.glyph.prototype = new svg.Element.path;
	2093
	2094	// text element
	2095	svg.Element.text = function(node) {
	2096	this.base = svg.Element.RenderedElementBase;
	2097	this.base(node);
	2098
	2099	if (node != null) {
	2100	// add children
	2101	this.children = [];
	2102	for (var i=0; i<node.childNodes.length; i++) {
	2103	var childNode = node.childNodes[i];
	2104	if (childNode.nodeType == 1) { // capture tspan and tref nodes
	2105	this.addChild(childNode, true);
	2106	}
	2107	else if (childNode.nodeType == 3) { // capture text
	2108	this.addChild(new svg.Element.tspan(childNode), false);
	2109	}
	2110	}
	2111	}
	2112
	2113	this.baseSetContext = this.setContext;
	2114	this.setContext = function(ctx) {
	2115	this.baseSetContext(ctx);
	2116	if (this.style('dominant-baseline').hasValue()) ctx.textBaseline = this.style('dominant-baseline').value;
	2117	if (this.style('alignment-baseline').hasValue()) ctx.textBaseline = this.style('alignment-baseline').value;
	2118	}
	2119
	2120	this.renderChildren = function(ctx) {
	2121	var textAnchor = this.style('text-anchor').valueOrDefault('start');
	2122	var x = this.attribute('x').Length.toPixels('x');
	2123	var y = this.attribute('y').Length.toPixels('y');
	2124	for (var i=0; i<this.children.length; i++) {
	2125	var child = this.children[i];
	2126
	2127	if (child.attribute('x').hasValue()) {
	2128	child.x = child.attribute('x').Length.toPixels('x');
	2129	}
	2130	else {
	2131	if (child.attribute('dx').hasValue()) x += child.attribute('dx').Length.toPixels('x');
	2132	child.x = x;
	2133	}
	2134
	2135	var childLength = child.measureText(ctx);
	2136	if (textAnchor != 'start' && (i==0 \|\| child.attribute('x').hasValue())) { // new group?
	2137	// loop through rest of children
	2138	var groupLength = childLength;
	2139	for (var j=i+1; j<this.children.length; j++) {
	2140	var childInGroup = this.children[j];
	2141	if (childInGroup.attribute('x').hasValue()) break; // new group
	2142	groupLength += childInGroup.measureText(ctx);
	2143	}
	2144	child.x -= (textAnchor == 'end' ? groupLength : groupLength / 2.0);
	2145	}
	2146	x = child.x + childLength;
	2147
	2148	if (child.attribute('y').hasValue()) {
	2149	child.y = child.attribute('y').Length.toPixels('y');
	2150	}
	2151	else {
	2152	if (child.attribute('dy').hasValue()) y += child.attribute('dy').Length.toPixels('y');
	2153	child.y = y;
	2154	}
	2155	y = child.y;
	2156
	2157	child.render(ctx);
	2158	}
	2159	}
	2160	}
	2161	svg.Element.text.prototype = new svg.Element.RenderedElementBase;
	2162
	2163	// text base
	2164	svg.Element.TextElementBase = function(node) {
	2165	this.base = svg.Element.RenderedElementBase;
	2166	this.base(node);
	2167
	2168	this.getGlyph = function(font, text, i) {
	2169	var c = text[i];
	2170	var glyph = null;
	2171	if (font.isArabic) {
	2172	var arabicForm = 'isolated';
	2173	if ((i==0 \|\| text[i-1]==' ') && i<text.length-2 && text[i+1]!=' ') arabicForm = 'terminal';
	2174	if (i>0 && text[i-1]!=' ' && i<text.length-2 && text[i+1]!=' ') arabicForm = 'medial';
	2175	if (i>0 && text[i-1]!=' ' && (i == text.length-1 \|\| text[i+1]==' ')) arabicForm = 'initial';
	2176	if (typeof(font.glyphs[c]) != 'undefined') {
	2177	glyph = font.glyphs[c][arabicForm];
	2178	if (glyph == null && font.glyphs[c].type == 'glyph') glyph = font.glyphs[c];
	2179	}
	2180	}
	2181	else {
	2182	glyph = font.glyphs[c];
	2183	}
	2184	if (glyph == null) glyph = font.missingGlyph;
	2185	return glyph;
	2186	}
	2187
	2188	this.renderChildren = function(ctx) {
	2189	var customFont = this.parent.style('font-family').Definition.getDefinition();
	2190	if (customFont != null) {
	2191	var fontSize = this.parent.style('font-size').numValueOrDefault(svg.Font.Parse(svg.ctx.font).fontSize);
	2192	var fontStyle = this.parent.style('font-style').valueOrDefault(svg.Font.Parse(svg.ctx.font).fontStyle);
	2193	var text = this.getText();
	2194	if (customFont.isRTL) text = text.split("").reverse().join("");
	2195
	2196	var dx = svg.ToNumberArray(this.parent.attribute('dx').value);
	2197	for (var i=0; i<text.length; i++) {
	2198	var glyph = this.getGlyph(customFont, text, i);
	2199	var scale = fontSize / customFont.fontFace.unitsPerEm;
	2200	ctx.translate(this.x, this.y);
	2201	ctx.scale(scale, -scale);
	2202	var lw = ctx.lineWidth;
	2203	ctx.lineWidth = ctx.lineWidth * customFont.fontFace.unitsPerEm / fontSize;
	2204	if (fontStyle == 'italic') ctx.transform(1, 0, .4, 1, 0, 0);
	2205	glyph.render(ctx);
	2206	if (fontStyle == 'italic') ctx.transform(1, 0, -.4, 1, 0, 0);
	2207	ctx.lineWidth = lw;
	2208	ctx.scale(1/scale, -1/scale);
	2209	ctx.translate(-this.x, -this.y);
	2210
	2211	this.x += fontSize * (glyph.horizAdvX \|\| customFont.horizAdvX) / customFont.fontFace.unitsPerEm;
	2212	if (typeof(dx[i]) != 'undefined' && !isNaN(dx[i])) {
	2213	this.x += dx[i];
	2214	}
	2215	}
	2216	return;
	2217	}
	2218
	2219	if (ctx.strokeStyle != '') ctx.strokeText(svg.compressSpaces(this.getText()), this.x, this.y);
	2220	if (ctx.fillStyle != '') ctx.fillText(svg.compressSpaces(this.getText()), this.x, this.y);
	2221	}
	2222
	2223	this.getText = function() {
	2224	// OVERRIDE ME
	2225	}
	2226
	2227	this.measureText = function(ctx) {
	2228	var customFont = this.parent.style('font-family').Definition.getDefinition();
	2229	if (customFont != null) {
	2230	var fontSize = this.parent.style('font-size').numValueOrDefault(svg.Font.Parse(svg.ctx.font).fontSize);
	2231	var measure = 0;
	2232	var text = this.getText();
	2233	if (customFont.isRTL) text = text.split("").reverse().join("");
	2234	var dx = svg.ToNumberArray(this.parent.attribute('dx').value);
	2235	for (var i=0; i<text.length; i++) {
	2236	var glyph = this.getGlyph(customFont, text, i);
	2237	measure += (glyph.horizAdvX \|\| customFont.horizAdvX) * fontSize / customFont.fontFace.unitsPerEm;
	2238	if (typeof(dx[i]) != 'undefined' && !isNaN(dx[i])) {
	2239	measure += dx[i];
	2240	}
	2241	}
	2242	return measure;
	2243	}
	2244
	2245	var textToMeasure = svg.compressSpaces(this.getText());
	2246	if (!ctx.measureText) return textToMeasure.length * 10;
	2247
	2248	ctx.save();
	2249	this.setContext(ctx);
	2250	var width = ctx.measureText(textToMeasure).width;
	2251	ctx.restore();
	2252	return width;
	2253	}
	2254	}
	2255	svg.Element.TextElementBase.prototype = new svg.Element.RenderedElementBase;
	2256
	2257	// tspan
	2258	svg.Element.tspan = function(node) {
	2259	this.base = svg.Element.TextElementBase;
	2260	this.base(node);
	2261
	2262	this.text = node.nodeType == 3 ? node.nodeValue : // text
	2263	node.childNodes.length > 0 ? node.childNodes[0].nodeValue : // element
	2264	node.text;
	2265	this.getText = function() {
	2266	return this.text;
	2267	}
	2268	}
	2269	svg.Element.tspan.prototype = new svg.Element.TextElementBase;
	2270
	2271	// tref
	2272	svg.Element.tref = function(node) {
	2273	this.base = svg.Element.TextElementBase;
	2274	this.base(node);
	2275
	2276	this.getText = function() {
	2277	var element = this.attribute('xlink:href').Definition.getDefinition();
	2278	if (element != null) return element.children[0].getText();
	2279	}
	2280	}
	2281	svg.Element.tref.prototype = new svg.Element.TextElementBase;
	2282
	2283	// a element
	2284	svg.Element.a = function(node) {
	2285	this.base = svg.Element.TextElementBase;
	2286	this.base(node);
	2287
	2288	this.hasText = true;
	2289	for (var i=0; i<node.childNodes.length; i++) {
	2290	if (node.childNodes[i].nodeType != 3) this.hasText = false;
	2291	}
	2292
	2293	// this might contain text
	2294	this.text = this.hasText ? node.childNodes[0].nodeValue : '';
	2295	this.getText = function() {
	2296	return this.text;
	2297	}
	2298
	2299	this.baseRenderChildren = this.renderChildren;
	2300	this.renderChildren = function(ctx) {
	2301	if (this.hasText) {
	2302	// render as text element
	2303	this.baseRenderChildren(ctx);
	2304	var fontSize = new svg.Property('fontSize', svg.Font.Parse(svg.ctx.font).fontSize);
	2305	svg.Mouse.checkBoundingBox(this, new svg.BoundingBox(this.x, this.y - fontSize.Length.toPixels('y'), this.x + this.measureText(ctx), this.y));
	2306	}
	2307	else {
	2308	// render as temporary group
	2309	var g = new svg.Element.g();
	2310	g.children = this.children;
	2311	g.parent = this;
	2312	g.render(ctx);
	2313	}
	2314	}
	2315
	2316	this.onclick = function() {
	2317	window.open(this.attribute('xlink:href').value);
	2318	}
	2319
	2320	this.onmousemove = function() {
	2321	svg.ctx.canvas.style.cursor = 'pointer';
	2322	}
	2323	}
	2324	svg.Element.a.prototype = new svg.Element.TextElementBase;
	2325
	2326	// image element
	2327	svg.Element.image = function(node) {
	2328	this.base = svg.Element.RenderedElementBase;
	2329	this.base(node);
	2330
	2331	svg.Images.push(this);
	2332	this.img = document.createElement('img');
	2333	this.loaded = false;
	2334	var that = this;
	2335	this.img.onload = function() { that.loaded = true; }
	2336	this.img.src = this.attribute('xlink:href').value;
	2337
	2338	this.renderChildren = function(ctx) {
	2339	var x = this.attribute('x').Length.toPixels('x');
	2340	var y = this.attribute('y').Length.toPixels('y');
	2341
	2342	var width = this.attribute('width').Length.toPixels('x');
	2343	var height = this.attribute('height').Length.toPixels('y');
	2344	if (width == 0 \|\| height == 0) return;
	2345
	2346	ctx.save();
	2347	ctx.translate(x, y);
	2348	svg.AspectRatio(ctx,
	2349	this.attribute('preserveAspectRatio').value,
	2350	width,
	2351	this.img.width,
	2352	height,
	2353	this.img.height,
	2354	0,
	2355	0);
	2356	ctx.drawImage(this.img, 0, 0);
	2357	ctx.restore();
	2358	}
	2359	}
	2360	svg.Element.image.prototype = new svg.Element.RenderedElementBase;
	2361
	2362	// group element
	2363	svg.Element.g = function(node) {
	2364	this.base = svg.Element.RenderedElementBase;
	2365	this.base(node);
	2366
	2367	this.getBoundingBox = function() {
	2368	var bb = new svg.BoundingBox();
	2369	for (var i=0; i<this.children.length; i++) {
	2370	bb.addBoundingBox(this.children[i].getBoundingBox());
	2371	}
	2372	return bb;
	2373	};
	2374	}
	2375	svg.Element.g.prototype = new svg.Element.RenderedElementBase;
	2376
	2377	// symbol element
	2378	svg.Element.symbol = function(node) {
	2379	this.base = svg.Element.RenderedElementBase;
	2380	this.base(node);
	2381
	2382	this.baseSetContext = this.setContext;
	2383	this.setContext = function(ctx) {
	2384	this.baseSetContext(ctx);
	2385
	2386	// viewbox
	2387	if (this.attribute('viewBox').hasValue()) {
	2388	var viewBox = svg.ToNumberArray(this.attribute('viewBox').value);
	2389	var minX = viewBox[0];
	2390	var minY = viewBox[1];
	2391	width = viewBox[2];
	2392	height = viewBox[3];
	2393
	2394	svg.AspectRatio(ctx,
	2395	this.attribute('preserveAspectRatio').value,
	2396	this.attribute('width').Length.toPixels('x'),
	2397	width,
	2398	this.attribute('height').Length.toPixels('y'),
	2399	height,
	2400	minX,
	2401	minY);
	2402
	2403	svg.ViewPort.SetCurrent(viewBox[2], viewBox[3]);
	2404	}
	2405	}
	2406	}
	2407	svg.Element.symbol.prototype = new svg.Element.RenderedElementBase;
	2408
	2409	// style element
	2410	svg.Element.style = function(node) {
	2411	this.base = svg.Element.ElementBase;
	2412	this.base(node);
	2413
	2414	// text, or spaces then CDATA
	2415	var css = node.childNodes[0].nodeValue + (node.childNodes.length > 1 ? node.childNodes[1].nodeValue : '');
	2416	css = css.replace(/(\/\([^]\|[\r\n]\|(\+([^\/]\|[\r\n])))\+\/)\|(^[\s]\/\/.)/gm, ''); // remove comments
	2417	css = svg.compressSpaces(css); // replace whitespace
	2418	var cssDefs = css.split('}');
	2419	for (var i=0; i<cssDefs.length; i++) {
	2420	if (svg.trim(cssDefs[i]) != '') {
	2421	var cssDef = cssDefs[i].split('{');
	2422	var cssClasses = cssDef[0].split(',');
	2423	var cssProps = cssDef[1].split(';');
	2424	for (var j=0; j<cssClasses.length; j++) {
	2425	var cssClass = svg.trim(cssClasses[j]);
	2426	if (cssClass != '') {
	2427	var props = {};
	2428	for (var k=0; k<cssProps.length; k++) {
	2429	var prop = cssProps[k].indexOf(':');
	2430	var name = cssProps[k].substr(0, prop);
	2431	var value = cssProps[k].substr(prop + 1, cssProps[k].length - prop);
	2432	if (name != null && value != null) {
	2433	props[svg.trim(name)] = new svg.Property(svg.trim(name), svg.trim(value));
	2434	}
	2435	}
	2436	svg.Styles[cssClass] = props;
	2437	if (cssClass == '@font-face') {
	2438	var fontFamily = props['font-family'].value.replace(/"/g,'');
	2439	var srcs = props['src'].value.split(',');
	2440	for (var s=0; s<srcs.length; s++) {
	2441	if (srcs[s].indexOf('format("svg")') > 0) {
	2442	var urlStart = srcs[s].indexOf('url');
	2443	var urlEnd = srcs[s].indexOf(')', urlStart);
	2444	var url = srcs[s].substr(urlStart + 5, urlEnd - urlStart - 6);
	2445	var doc = svg.parseXml(svg.ajax(url));
	2446	var fonts = doc.getElementsByTagName('font');
	2447	for (var f=0; f<fonts.length; f++) {
	2448	var font = svg.CreateElement(fonts[f]);
	2449	svg.Definitions[fontFamily] = font;
	2450	}
	2451	}
	2452	}
	2453	}
	2454	}
	2455	}
	2456	}
	2457	}
	2458	}
	2459	svg.Element.style.prototype = new svg.Element.ElementBase;
	2460
	2461	// use element
	2462	svg.Element.use = function(node) {
	2463	this.base = svg.Element.RenderedElementBase;
	2464	this.base(node);
	2465
	2466	this.baseSetContext = this.setContext;
	2467	this.setContext = function(ctx) {
	2468	this.baseSetContext(ctx);
	2469	if (this.attribute('x').hasValue()) ctx.translate(this.attribute('x').Length.toPixels('x'), 0);
	2470	if (this.attribute('y').hasValue()) ctx.translate(0, this.attribute('y').Length.toPixels('y'));
	2471	}
	2472
	2473	this.getDefinition = function() {
	2474	var element = this.attribute('xlink:href').Definition.getDefinition();
	2475	if (this.attribute('width').hasValue()) element.attribute('width', true).value = this.attribute('width').value;
	2476	if (this.attribute('height').hasValue()) element.attribute('height', true).value = this.attribute('height').value;
	2477	return element;
	2478	}
	2479
	2480	this.path = function(ctx) {
	2481	var element = this.getDefinition();
	2482	if (element != null) element.path(ctx);
	2483	}
	2484
	2485	this.renderChildren = function(ctx) {
	2486	var element = this.getDefinition();
	2487	if (element != null) element.render(ctx);
	2488	}
	2489	}
	2490	svg.Element.use.prototype = new svg.Element.RenderedElementBase;
	2491
	2492	// mask element
	2493	svg.Element.mask = function(node) {
	2494	this.base = svg.Element.ElementBase;
	2495	this.base(node);
	2496
	2497	this.apply = function(ctx, element) {
	2498	// render as temp svg
	2499	var x = this.attribute('x').Length.toPixels('x');
	2500	var y = this.attribute('y').Length.toPixels('y');
	2501	var width = this.attribute('width').Length.toPixels('x');
	2502	var height = this.attribute('height').Length.toPixels('y');
	2503
	2504	// temporarily remove mask to avoid recursion
	2505	var mask = element.attribute('mask').value;
	2506	element.attribute('mask').value = '';
	2507
	2508	var cMask = document.createElement('canvas');
	2509	cMask.width = x + width;
	2510	cMask.height = y + height;
	2511	var maskCtx = cMask.getContext('2d');
	2512	this.renderChildren(maskCtx);
	2513
	2514	var c = document.createElement('canvas');
	2515	c.width = x + width;
	2516	c.height = y + height;
	2517	var tempCtx = c.getContext('2d');
	2518	element.render(tempCtx);
	2519	tempCtx.globalCompositeOperation = 'destination-in';
	2520	tempCtx.fillStyle = maskCtx.createPattern(cMask, 'no-repeat');
	2521	tempCtx.fillRect(0, 0, x + width, y + height);
	2522
	2523	ctx.fillStyle = tempCtx.createPattern(c, 'no-repeat');
	2524	ctx.fillRect(0, 0, x + width, y + height);
	2525
	2526	// reassign mask
	2527	element.attribute('mask').value = mask;
	2528	}
	2529
	2530	this.render = function(ctx) {
	2531	// NO RENDER
	2532	}
	2533	}
	2534	svg.Element.mask.prototype = new svg.Element.ElementBase;
	2535
	2536	// clip element
	2537	svg.Element.clipPath = function(node) {
	2538	this.base = svg.Element.ElementBase;
	2539	this.base(node);
	2540
	2541	this.apply = function(ctx) {
	2542	for (var i=0; i<this.children.length; i++) {
	2543	if (this.children[i].path) {
	2544	this.children[i].path(ctx);
	2545	ctx.clip();
	2546	}
	2547	}
	2548	}
	2549
	2550	this.render = function(ctx) {
	2551	// NO RENDER
	2552	}
	2553	}
	2554	svg.Element.clipPath.prototype = new svg.Element.ElementBase;
	2555
	2556	// filters
	2557	svg.Element.filter = function(node) {
	2558	this.base = svg.Element.ElementBase;
	2559	this.base(node);
	2560
	2561	this.apply = function(ctx, element) {
	2562	// render as temp svg
	2563	var bb = element.getBoundingBox();
	2564	var x = this.attribute('x').Length.toPixels('x');
	2565	var y = this.attribute('y').Length.toPixels('y');
	2566	if (x == 0 \|\| y == 0) {
	2567	x = bb.x1;
	2568	y = bb.y1;
	2569	}
	2570	var width = this.attribute('width').Length.toPixels('x');
	2571	var height = this.attribute('height').Length.toPixels('y');
	2572	if (width == 0 \|\| height == 0) {
	2573	width = bb.width();
	2574	height = bb.height();
	2575	}
	2576
	2577	// temporarily remove filter to avoid recursion
	2578	var filter = element.style('filter').value;
	2579	element.style('filter').value = '';
	2580
	2581	// max filter distance
	2582	var extraPercent = .20;
	2583	var px = extraPercent * width;
	2584	var py = extraPercent * height;
	2585
	2586	var c = document.createElement('canvas');
	2587	c.width = width + 2*px;
	2588	c.height = height + 2*py;
	2589	var tempCtx = c.getContext('2d');
	2590	tempCtx.translate(-x + px, -y + py);
	2591	element.render(tempCtx);
	2592
	2593	// apply filters
	2594	for (var i=0; i<this.children.length; i++) {
	2595	this.children[i].apply(tempCtx, 0, 0, width + 2px, height + 2py);
	2596	}
	2597
	2598	// render on me
	2599	ctx.drawImage(c, 0, 0, width + 2px, height + 2py, x - px, y - py, width + 2px, height + 2py);
	2600
	2601	// reassign filter
	2602	element.style('filter', true).value = filter;
	2603	}
	2604
	2605	this.render = function(ctx) {
	2606	// NO RENDER
	2607	}
	2608	}
	2609	svg.Element.filter.prototype = new svg.Element.ElementBase;
	2610
	2611	svg.Element.feGaussianBlur = function(node) {
	2612	this.base = svg.Element.ElementBase;
	2613	this.base(node);
	2614
	2615	function make_fgauss(sigma) {
	2616	sigma = Math.max(sigma, 0.01);
	2617	var len = Math.ceil(sigma * 4.0) + 1;
	2618	mask = [];
	2619	for (var i = 0; i < len; i++) {
	2620	mask[i] = Math.exp(-0.5 * (i / sigma) * (i / sigma));
	2621	}
	2622	return mask;
	2623	}
	2624
	2625	function normalize(mask) {
	2626	var sum = 0;
	2627	for (var i = 1; i < mask.length; i++) {
	2628	sum += Math.abs(mask[i]);
	2629	}
	2630	sum = 2 * sum + Math.abs(mask[0]);
	2631	for (var i = 0; i < mask.length; i++) {
	2632	mask[i] /= sum;
	2633	}
	2634	return mask;
	2635	}
	2636
	2637	function convolve_even(src, dst, mask, width, height) {
	2638	for (var y = 0; y < height; y++) {
	2639	for (var x = 0; x < width; x++) {
	2640	var a = imGet(src, x, y, width, height, 3)/255;
	2641	for (var rgba = 0; rgba < 4; rgba++) {
	2642	var sum = mask[0] * (a==0?255:imGet(src, x, y, width, height, rgba)) * (a==0\|\|rgba==3?1:a);
	2643	for (var i = 1; i < mask.length; i++) {
	2644	var a1 = imGet(src, Math.max(x-i,0), y, width, height, 3)/255;
	2645	var a2 = imGet(src, Math.min(x+i, width-1), y, width, height, 3)/255;
	2646	sum += mask[i] *
	2647	((a1==0?255:imGet(src, Math.max(x-i,0), y, width, height, rgba)) * (a1==0\|\|rgba==3?1:a1) +
	2648	(a2==0?255:imGet(src, Math.min(x+i, width-1), y, width, height, rgba)) * (a2==0\|\|rgba==3?1:a2));
	2649	}
	2650	imSet(dst, y, x, height, width, rgba, sum);
	2651	}
	2652	}
	2653	}
	2654	}
	2655
	2656	function imGet(img, x, y, width, height, rgba) {
	2657	return img[ywidth4 + x*4 + rgba];
	2658	}
	2659
	2660	function imSet(img, x, y, width, height, rgba, val) {
	2661	img[ywidth4 + x*4 + rgba] = val;
	2662	}
	2663
	2664	function blur(ctx, width, height, sigma)
	2665	{
	2666	var srcData = ctx.getImageData(0, 0, width, height);
	2667	var mask = make_fgauss(sigma);
	2668	mask = normalize(mask);
	2669	tmp = [];
	2670	convolve_even(srcData.data, tmp, mask, width, height);
	2671	convolve_even(tmp, srcData.data, mask, height, width);
	2672	ctx.clearRect(0, 0, width, height);
	2673	ctx.putImageData(srcData, 0, 0);
	2674	}
	2675
	2676	this.apply = function(ctx, x, y, width, height) {
	2677	// assuming x==0 && y==0 for now
	2678	blur(ctx, width, height, this.attribute('stdDeviation').numValue());
	2679	}
	2680	}
	2681	svg.Element.filter.prototype = new svg.Element.feGaussianBlur;
	2682
	2683	// title element, do nothing
	2684	svg.Element.title = function(node) {
	2685	}
	2686	svg.Element.title.prototype = new svg.Element.ElementBase;
	2687
	2688	// desc element, do nothing
	2689	svg.Element.desc = function(node) {
	2690	}
	2691	svg.Element.desc.prototype = new svg.Element.ElementBase;
	2692
	2693	svg.Element.MISSING = function(node) {
	2694	console.log('ERROR: Element \'' + node.nodeName + '\' not yet implemented.');
	2695	}
	2696	svg.Element.MISSING.prototype = new svg.Element.ElementBase;
	2697
	2698	// element factory
	2699	svg.CreateElement = function(node) {
	2700	var className = node.nodeName.replace(/^[^:]+:/,''); // remove namespace
	2701	className = className.replace(/\-/g,''); // remove dashes
	2702	var e = null;
	2703	if (typeof(svg.Element[className]) != 'undefined') {
	2704	e = new svg.Element[className](node);
	2705	}
	2706	else {
	2707	e = new svg.Element.MISSING(node);
	2708	}
	2709
	2710	e.type = node.nodeName;
	2711	return e;
	2712	}
	2713
	2714	// load from url
	2715	svg.load = function(ctx, url) {
	2716	svg.loadXml(ctx, svg.ajax(url));
	2717	}
	2718
	2719	// load from xml
	2720	svg.loadXml = function(ctx, xml) {
	2721	svg.loadXmlDoc(ctx, svg.parseXml(xml));
	2722	}
	2723
	2724	svg.loadXmlDoc = function(ctx, dom) {
	2725	svg.init(ctx);
	2726
	2727	var mapXY = function(p) {
	2728	var e = ctx.canvas;
	2729	while (e) {
	2730	p.x -= e.offsetLeft;
	2731	p.y -= e.offsetTop;
	2732	e = e.offsetParent;
	2733	}
	2734	if (window.scrollX) p.x += window.scrollX;
	2735	if (window.scrollY) p.y += window.scrollY;
	2736	return p;
	2737	}
	2738
	2739	// bind mouse
	2740	if (svg.opts['ignoreMouse'] != true) {
	2741	ctx.canvas.onclick = function(e) {
	2742	var p = mapXY(new svg.Point(e != null ? e.clientX : event.clientX, e != null ? e.clientY : event.clientY));
	2743	svg.Mouse.onclick(p.x, p.y);
	2744	};
	2745	ctx.canvas.onmousemove = function(e) {
	2746	var p = mapXY(new svg.Point(e != null ? e.clientX : event.clientX, e != null ? e.clientY : event.clientY));
	2747	svg.Mouse.onmousemove(p.x, p.y);
	2748	};
	2749	}
	2750
	2751	var e = svg.CreateElement(dom.documentElement);
	2752	e.root = true;
	2753
	2754	// render loop
	2755	var isFirstRender = true;
	2756	var draw = function() {
	2757	svg.ViewPort.Clear();
	2758	if (ctx.canvas.parentNode) svg.ViewPort.SetCurrent(ctx.canvas.parentNode.clientWidth, ctx.canvas.parentNode.clientHeight);
	2759
	2760	if (svg.opts['ignoreDimensions'] != true) {
	2761	// set canvas size
	2762	if (e.style('width').hasValue()) {
	2763	ctx.canvas.width = e.style('width').Length.toPixels('x');
	2764	ctx.canvas.style.width = ctx.canvas.width + 'px';
	2765	}
	2766	if (e.style('height').hasValue()) {
	2767	ctx.canvas.height = e.style('height').Length.toPixels('y');
	2768	ctx.canvas.style.height = ctx.canvas.height + 'px';
	2769	}
	2770	}
	2771	var cWidth = ctx.canvas.clientWidth \|\| ctx.canvas.width;
	2772	var cHeight = ctx.canvas.clientHeight \|\| ctx.canvas.height;
	2773	svg.ViewPort.SetCurrent(cWidth, cHeight);
	2774
	2775	if (svg.opts != null && svg.opts['offsetX'] != null) e.attribute('x', true).value = svg.opts['offsetX'];
	2776	if (svg.opts != null && svg.opts['offsetY'] != null) e.attribute('y', true).value = svg.opts['offsetY'];
	2777	if (svg.opts != null && svg.opts['scaleWidth'] != null && svg.opts['scaleHeight'] != null) {
	2778	var xRatio = 1, yRatio = 1;
	2779	if (e.attribute('width').hasValue()) xRatio = e.attribute('width').Length.toPixels('x') / svg.opts['scaleWidth'];
	2780	if (e.attribute('height').hasValue()) yRatio = e.attribute('height').Length.toPixels('y') / svg.opts['scaleHeight'];
	2781
	2782	e.attribute('width', true).value = svg.opts['scaleWidth'];
	2783	e.attribute('height', true).value = svg.opts['scaleHeight'];
	2784	e.attribute('viewBox', true).value = '0 0 ' + (cWidth * xRatio) + ' ' + (cHeight * yRatio);
	2785	e.attribute('preserveAspectRatio', true).value = 'none';
	2786	}
	2787
	2788	// clear and render
	2789	if (svg.opts['ignoreClear'] != true) {
	2790	ctx.clearRect(0, 0, cWidth, cHeight);
	2791	}
	2792	e.render(ctx);
	2793	if (isFirstRender) {
	2794	isFirstRender = false;
	2795	if (svg.opts != null && typeof(svg.opts['renderCallback']) == 'function') svg.opts['renderCallback']();
	2796	}
	2797	}
	2798
	2799	var waitingForImages = true;
	2800	if (svg.ImagesLoaded()) {
	2801	waitingForImages = false;
	2802	draw();
	2803	}
	2804	svg.intervalID = setInterval(function() {
	2805	var needUpdate = false;
	2806
	2807	if (waitingForImages && svg.ImagesLoaded()) {
	2808	waitingForImages = false;
	2809	needUpdate = true;
	2810	}
	2811
	2812	// need update from mouse events?
	2813	if (svg.opts['ignoreMouse'] != true) {
	2814	needUpdate = needUpdate \| svg.Mouse.hasEvents();
	2815	}
	2816
	2817	// need update from animations?
	2818	if (svg.opts['ignoreAnimation'] != true) {
	2819	for (var i=0; i<svg.Animations.length; i++) {
	2820	needUpdate = needUpdate \| svg.Animations[i].update(1000 / svg.FRAMERATE);
	2821	}
	2822	}
	2823
	2824	// need update from redraw?
	2825	if (svg.opts != null && typeof(svg.opts['forceRedraw']) == 'function') {
	2826	if (svg.opts['forceRedraw']() == true) needUpdate = true;
	2827	}
	2828
	2829	// render if needed
	2830	if (needUpdate) {
	2831	draw();
	2832	svg.Mouse.runEvents(); // run and clear our events
	2833	}
	2834	}, 1000 / svg.FRAMERATE);
	2835	}
	2836
	2837	svg.stop = function() {
	2838	if (svg.intervalID) {
	2839	clearInterval(svg.intervalID);
	2840	}
	2841	}
	2842
	2843	svg.Mouse = new (function() {
	2844	this.events = [];
	2845	this.hasEvents = function() { return this.events.length != 0; }
	2846
	2847	this.onclick = function(x, y) {
	2848	this.events.push({ type: 'onclick', x: x, y: y,
	2849	run: function(e) { if (e.onclick) e.onclick(); }
	2850	});
	2851	}
	2852
	2853	this.onmousemove = function(x, y) {
	2854	this.events.push({ type: 'onmousemove', x: x, y: y,
	2855	run: function(e) { if (e.onmousemove) e.onmousemove(); }
	2856	});
	2857	}
	2858
	2859	this.eventElements = [];
	2860
	2861	this.checkPath = function(element, ctx) {
	2862	for (var i=0; i<this.events.length; i++) {
	2863	var e = this.events[i];
	2864	if (ctx.isPointInPath && ctx.isPointInPath(e.x, e.y)) this.eventElements[i] = element;
	2865	}
	2866	}
	2867
	2868	this.checkBoundingBox = function(element, bb) {
	2869	for (var i=0; i<this.events.length; i++) {
	2870	var e = this.events[i];
	2871	if (bb.isPointInBox(e.x, e.y)) this.eventElements[i] = element;
	2872	}
	2873	}
	2874
	2875	this.runEvents = function() {
	2876	svg.ctx.canvas.style.cursor = '';
	2877
	2878	for (var i=0; i<this.events.length; i++) {
	2879	var e = this.events[i];
	2880	var element = this.eventElements[i];
	2881	while (element) {
	2882	e.run(element);
	2883	element = element.parent;
	2884	}
	2885	}
	2886
	2887	// done running, clear
	2888	this.events = [];
	2889	this.eventElements = [];
	2890	}
	2891	});
	2892
	2893	return svg;
	2894	}
	2895	})();
	2896
	2897	if (CanvasRenderingContext2D) {
	2898	CanvasRenderingContext2D.prototype.drawSvg = function(s, dx, dy, dw, dh) {
	2899	canvg(this.canvas, s, {
	2900	ignoreMouse: true,
	2901	ignoreAnimation: true,
	2902	ignoreDimensions: true,
	2903	ignoreClear: true,
	2904	offsetX: dx,
	2905	offsetY: dy,
	2906	scaleWidth: dw,
	2907	scaleHeight: dh
	2908	});
	2909	}
	2910	}/**
	2911	* @license Highcharts JS v3.0.6 (2013-10-04)
	2912	* CanVGRenderer Extension module
	2913	*
	2914	* (c) 2011-2012 Torstein Hønsi, Erik Olsson
	2915	*
	2916	* License: www.highcharts.com/license
	2917	*/
	2918
	2919	// JSLint options:
	2920	/global Highcharts /
	2921
	2922	(function (Highcharts) { // encapsulate
	2923	var UNDEFINED,
	2924	DIV = 'div',
	2925	ABSOLUTE = 'absolute',
	2926	RELATIVE = 'relative',
	2927	HIDDEN = 'hidden',
	2928	VISIBLE = 'visible',
	2929	PX = 'px',
	2930	css = Highcharts.css,
	2931	CanVGRenderer = Highcharts.CanVGRenderer,
	2932	SVGRenderer = Highcharts.SVGRenderer,
	2933	extend = Highcharts.extend,
	2934	merge = Highcharts.merge,
	2935	addEvent = Highcharts.addEvent,
	2936	createElement = Highcharts.createElement,
	2937	discardElement = Highcharts.discardElement;
	2938
	2939	// Extend CanVG renderer on demand, inherit from SVGRenderer
	2940	extend(CanVGRenderer.prototype, SVGRenderer.prototype);
	2941
	2942	// Add additional functionality:
	2943	extend(CanVGRenderer.prototype, {
	2944	create: function (chart, container, chartWidth, chartHeight) {
	2945	this.setContainer(container, chartWidth, chartHeight);
	2946	this.configure(chart);
	2947	},
	2948	setContainer: function (container, chartWidth, chartHeight) {
	2949	var containerStyle = container.style,
	2950	containerParent = container.parentNode,
	2951	containerLeft = containerStyle.left,
	2952	containerTop = containerStyle.top,
	2953	containerOffsetWidth = container.offsetWidth,
	2954	containerOffsetHeight = container.offsetHeight,
	2955	canvas,
	2956	initialHiddenStyle = { visibility: HIDDEN, position: ABSOLUTE };
	2957
	2958	this.init.apply(this, [container, chartWidth, chartHeight]);
	2959
	2960	// add the canvas above it
	2961	canvas = createElement('canvas', {
	2962	width: containerOffsetWidth,
	2963	height: containerOffsetHeight
	2964	}, {
	2965	position: RELATIVE,
	2966	left: containerLeft,
	2967	top: containerTop
	2968	}, container);
	2969	this.canvas = canvas;
	2970
	2971	// Create the tooltip line and div, they are placed as siblings to
	2972	// the container (and as direct childs to the div specified in the html page)
	2973	this.ttLine = createElement(DIV, null, initialHiddenStyle, containerParent);
	2974	this.ttDiv = createElement(DIV, null, initialHiddenStyle, containerParent);
	2975	this.ttTimer = UNDEFINED;
	2976
	2977	// Move away the svg node to a new div inside the container's parent so we can hide it.
	2978	var hiddenSvg = createElement(DIV, {
	2979	width: containerOffsetWidth,
	2980	height: containerOffsetHeight
	2981	}, {
	2982	visibility: HIDDEN,
	2983	left: containerLeft,
	2984	top: containerTop
	2985	}, containerParent);
	2986	this.hiddenSvg = hiddenSvg;
	2987	hiddenSvg.appendChild(this.box);
	2988	},
	2989
	2990	/**
	2991	* Configures the renderer with the chart. Attach a listener to the event tooltipRefresh.
	2992	**/
	2993	configure: function (chart) {
	2994	var renderer = this,
	2995	options = chart.options.tooltip,
	2996	borderWidth = options.borderWidth,
	2997	tooltipDiv = renderer.ttDiv,
	2998	tooltipDivStyle = options.style,
	2999	tooltipLine = renderer.ttLine,
	3000	padding = parseInt(tooltipDivStyle.padding, 10);
	3001
	3002	// Add border styling from options to the style
	3003	tooltipDivStyle = merge(tooltipDivStyle, {
	3004	padding: padding + PX,
	3005	'background-color': options.backgroundColor,
	3006	'border-style': 'solid',
	3007	'border-width': borderWidth + PX,
	3008	'border-radius': options.borderRadius + PX
	3009	});
	3010
	3011	// Optionally add shadow
	3012	if (options.shadow) {
	3013	tooltipDivStyle = merge(tooltipDivStyle, {
	3014	'box-shadow': '1px 1px 3px gray', // w3c
	3015	'-webkit-box-shadow': '1px 1px 3px gray' // webkit
	3016	});
	3017	}
	3018	css(tooltipDiv, tooltipDivStyle);
	3019
	3020	// Set simple style on the line
	3021	css(tooltipLine, {
	3022	'border-left': '1px solid darkgray'
	3023	});
	3024
	3025	// This event is triggered when a new tooltip should be shown
	3026	addEvent(chart, 'tooltipRefresh', function (args) {
	3027	var chartContainer = chart.container,
	3028	offsetLeft = chartContainer.offsetLeft,
	3029	offsetTop = chartContainer.offsetTop,
	3030	position;
	3031
	3032	// Set the content of the tooltip
	3033	tooltipDiv.innerHTML = args.text;
	3034
	3035	// Compute the best position for the tooltip based on the divs size and container size.
	3036	position = chart.tooltip.getPosition(tooltipDiv.offsetWidth, tooltipDiv.offsetHeight, {plotX: args.x, plotY: args.y});
	3037
	3038	css(tooltipDiv, {
	3039	visibility: VISIBLE,
	3040	left: position.x + PX,
	3041	top: position.y + PX,
	3042	'border-color': args.borderColor
	3043	});
	3044
	3045	// Position the tooltip line
	3046	css(tooltipLine, {
	3047	visibility: VISIBLE,
	3048	left: offsetLeft + args.x + PX,
	3049	top: offsetTop + chart.plotTop + PX,
	3050	height: chart.plotHeight + PX
	3051	});
	3052
	3053	// This timeout hides the tooltip after 3 seconds
	3054	// First clear any existing timer
	3055	if (renderer.ttTimer !== UNDEFINED) {
	3056	clearTimeout(renderer.ttTimer);
	3057	}
	3058
	3059	// Start a new timer that hides tooltip and line
	3060	renderer.ttTimer = setTimeout(function () {
	3061	css(tooltipDiv, { visibility: HIDDEN });
	3062	css(tooltipLine, { visibility: HIDDEN });
	3063	}, 3000);
	3064	});
	3065	},
	3066
	3067	/**
	3068	* Extend SVGRenderer.destroy to also destroy the elements added by CanVGRenderer.
	3069	*/
	3070	destroy: function () {
	3071	var renderer = this;
	3072
	3073	// Remove the canvas
	3074	discardElement(renderer.canvas);
	3075
	3076	// Kill the timer
	3077	if (renderer.ttTimer !== UNDEFINED) {
	3078	clearTimeout(renderer.ttTimer);
	3079	}
	3080
	3081	// Remove the divs for tooltip and line
	3082	discardElement(renderer.ttLine);
	3083	discardElement(renderer.ttDiv);
	3084	discardElement(renderer.hiddenSvg);
	3085
	3086	// Continue with base class
	3087	return SVGRenderer.prototype.destroy.apply(renderer);
	3088	},
	3089
	3090	/**
	3091	* Take a color and return it if it's a string, do not make it a gradient even if it is a
	3092	* gradient. Currently canvg cannot render gradients (turns out black),
	3093	* see: http://code.google.com/p/canvg/issues/detail?id=104
	3094	*
	3095	* @param {Object} color The color or config object
	3096	*/
	3097	color: function (color, elem, prop) {
	3098	if (color && color.linearGradient) {
	3099	// Pick the end color and forward to base implementation
	3100	color = color.stops[color.stops.length - 1][1];
	3101	}
	3102	return SVGRenderer.prototype.color.call(this, color, elem, prop);
	3103	},
	3104
	3105	/**
	3106	* Draws the SVG on the canvas or adds a draw invokation to the deferred list.
	3107	*/
	3108	draw: function () {
	3109	var renderer = this;
	3110	window.canvg(renderer.canvas, renderer.hiddenSvg.innerHTML);
	3111	}
	3112	});
	3113	}(Highcharts));