WebSVN – corrade-nucleus-nucleons – Blame – Rev 20 – /base/000_base/node

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office

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/** @preserve

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* canvg.js - Javascript SVG parser and renderer on Canvas

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* MIT Licensed

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* Gabe Lerner (gabelerner@gmail.com)

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* http://code.google.com/p/canvg/

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*

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* Requires: rgbcolor.js - http://www.phpied.com/rgb-color-parser-in-javascript/

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*/

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(function ( global, factory ) {

'use strict';

// export as AMD...

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if ( typeof define !== 'undefined' && define.amd ) {

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define('canvgModule', [ 'rgbcolor', 'stackblur' ], factory );

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}

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// ...or as browserify

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else if ( typeof module !== 'undefined' && module.exports ) {

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module.exports = factory( require( 'rgbcolor' ), require( 'stackblur' ) );

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}

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global.canvg = factory( global.RGBColor, global.stackBlur );

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}( typeof window !== 'undefined' ? window : this, function ( RGBColor, stackBlur ) {

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// canvg(target, s)

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// empty parameters: replace all 'svg' elements on page with 'canvas' elements

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// target: canvas element or the id of a canvas element

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// s: svg string, url to svg file, or xml document

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// opts: optional hash of options

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// ignoreMouse: true => ignore mouse events

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// ignoreAnimation: true => ignore animations

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// ignoreDimensions: true => does not try to resize canvas

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// ignoreClear: true => does not clear canvas

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// offsetX: int => draws at a x offset

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// offsetY: int => draws at a y offset

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// scaleWidth: int => scales horizontally to width

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// scaleHeight: int => scales vertically to height

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// renderCallback: function => will call the function after the first render is completed

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// forceRedraw: function => will call the function on every frame, if it returns true, will redraw

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var canvg = function (target, s, opts) {

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// no parameters

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if (target == null && s == null && opts == null) {

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var svgTags = document.querySelectorAll('svg');

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for (var i=0; i<svgTags.length; i++) {

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var svgTag = svgTags[i];

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var c = document.createElement('canvas');

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c.width = svgTag.clientWidth;

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c.height = svgTag.clientHeight;

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svgTag.parentNode.insertBefore(c, svgTag);

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svgTag.parentNode.removeChild(svgTag);

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var div = document.createElement('div');

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div.appendChild(svgTag);

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canvg(c, div.innerHTML);

}

return;

}

if (typeof target == 'string') {

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target = document.getElementById(target);

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}

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// store class on canvas

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if (target.svg != null) target.svg.stop();

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var svg = build(opts || {});

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// on i.e. 8 for flash canvas, we can't assign the property so check for it

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if (!(target.childNodes.length == 1 && target.childNodes[0].nodeName == 'OBJECT')) target.svg = svg;

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var ctx = target.getContext('2d');

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if (typeof(s.documentElement) != 'undefined') {

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// load from xml doc

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svg.loadXmlDoc(ctx, s);

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}

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else if (s.substr(0,1) == '<') {

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// load from xml string

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svg.loadXml(ctx, s);

}

else {

// load from url

svg.load(ctx, s);

}

}

// see https://developer.mozilla.org/en-US/docs/Web/API/Element.matches

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var matchesSelector;

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if (typeof(Element.prototype.matches) != 'undefined') {

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matchesSelector = function(node, selector) {

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return node.matches(selector);

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};

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} else if (typeof(Element.prototype.webkitMatchesSelector) != 'undefined') {

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matchesSelector = function(node, selector) {

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return node.webkitMatchesSelector(selector);

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};

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} else if (typeof(Element.prototype.mozMatchesSelector) != 'undefined') {

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matchesSelector = function(node, selector) {

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return node.mozMatchesSelector(selector);

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};

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} else if (typeof(Element.prototype.msMatchesSelector) != 'undefined') {

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matchesSelector = function(node, selector) {

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return node.msMatchesSelector(selector);

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};

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} else if (typeof(Element.prototype.oMatchesSelector) != 'undefined') {

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matchesSelector = function(node, selector) {

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return node.oMatchesSelector(selector);

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};

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} else {

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// requires Sizzle: https://github.com/jquery/sizzle/wiki/Sizzle-Documentation

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// or jQuery: http://jquery.com/download/

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// or Zepto: http://zeptojs.com/#

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// without it, this is a ReferenceError

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if (typeof jQuery === 'function' || typeof Zepto === 'function') {

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matchesSelector = function (node, selector) {

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return $(node).is(selector);

};

}

if (typeof matchesSelector === 'undefined') {

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matchesSelector = Sizzle.matchesSelector;

}

}

// slightly modified version of https://github.com/keeganstreet/specificity/blob/master/specificity.js

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var attributeRegex = /(\[[^\]]+\])/g;

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var idRegex = /(#[^\s\+>~\.\[:]+)/g;

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var classRegex = /(\.[^\s\+>~\.\[:]+)/g;

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var pseudoElementRegex = /(::[^\s\+>~\.\[:]+|:first-line|:first-letter|:before|:after)/gi;

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var pseudoClassWithBracketsRegex = /(:[\w-]+$[^$]*\))/gi;

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var pseudoClassRegex = /(:[^\s\+>~\.\[:]+)/g;

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var elementRegex = /([^\s\+>~\.\[:]+)/g;

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function getSelectorSpecificity(selector) {

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var typeCount = [0, 0, 0];

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var findMatch = function(regex, type) {

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var matches = selector.match(regex);

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if (matches == null) {

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return;

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}

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typeCount[type] += matches.length;

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selector = selector.replace(regex, ' ');

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};

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selector = selector.replace(/:not$([^$]*)\)/g, ' $1 ');

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selector = selector.replace(/{[^]*/gm, ' ');

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findMatch(attributeRegex, 1);

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findMatch(idRegex, 0);

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findMatch(classRegex, 1);

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findMatch(pseudoElementRegex, 2);

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findMatch(pseudoClassWithBracketsRegex, 1);

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findMatch(pseudoClassRegex, 1);

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selector = selector.replace(/[\*\s\+>~]/g, ' ');

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selector = selector.replace(/[#\.]/g, ' ');

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findMatch(elementRegex, 2);

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return typeCount.join('');

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}

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function build(opts) {

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var svg = { opts: opts };

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svg.FRAMERATE = 30;

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svg.MAX_VIRTUAL_PIXELS = 30000;

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svg.log = function(msg) {};

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if (svg.opts['log'] == true && typeof(console) != 'undefined') {

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svg.log = function(msg) { console.log(msg); };

};

// globals

svg.init = function(ctx) {

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var uniqueId = 0;

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svg.UniqueId = function () { uniqueId++; return 'canvg' + uniqueId; };

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svg.Definitions = {};

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svg.Styles = {};

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svg.StylesSpecificity = {};

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svg.Animations = [];

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svg.Images = [];

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svg.ctx = ctx;

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svg.ViewPort = new (function () {

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this.viewPorts = [];

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this.Clear = function() { this.viewPorts = []; }

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this.SetCurrent = function(width, height) { this.viewPorts.push({ width: width, height: height }); }

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this.RemoveCurrent = function() { this.viewPorts.pop(); }

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this.Current = function() { return this.viewPorts[this.viewPorts.length - 1]; }

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this.width = function() { return this.Current().width; }

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this.height = function() { return this.Current().height; }

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this.ComputeSize = function(d) {

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if (d != null && typeof(d) == 'number') return d;

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if (d == 'x') return this.width();

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if (d == 'y') return this.height();

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return Math.sqrt(Math.pow(this.width(), 2) + Math.pow(this.height(), 2)) / Math.sqrt(2);

}

});

}

svg.init();

// images loaded

svg.ImagesLoaded = function() {

for (var i=0; i

/ trim

svg.trim = function(s) { return s.replace(/^\s+|\s+$/g, ''); }

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// compress spaces

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svg.compressSpaces = function(s) { return s.replace(/[\s\r\t\n]+/gm,' '); }

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// ajax

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svg.ajax = function(url) {

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var AJAX;

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if(window.XMLHttpRequest){AJAX=new XMLHttpRequest();}

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else{AJAX=new ActiveXObject('Microsoft.XMLHTTP');}

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if(AJAX){

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AJAX.open('GET',url,false);

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AJAX.send(null);

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return AJAX.responseText;

}

return null;

}

// parse xml

svg.parseXml = function(xml) {

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			if (typeof(Windows) != 'undefined' && typeof(Windows.Data) != 'undefined' && typeof(Windows.Data.Xml) != 'undefined') {

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var xmlDoc = new Windows.Data.Xml.Dom.XmlDocument();

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var settings = new Windows.Data.Xml.Dom.XmlLoadSettings();

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settings.prohibitDtd = false;

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xmlDoc.loadXml(xml, settings);

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return xmlDoc;

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}

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else if (window.DOMParser)

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{

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var parser = new DOMParser();

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return parser.parseFromString(xml, 'text/xml');

}

else

{

xml = xml.replace(/<!DOCTYPE svg[^>]*>/, '');

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var xmlDoc = new ActiveXObject('Microsoft.XMLDOM');

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xmlDoc.async = 'false';

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xmlDoc.loadXML(xml);

return xmlDoc;

}

}

svg.Property = function(name, value) {

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this.name = name;

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this.value = value;

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}

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svg.Property.prototype.getValue = function() {

return this.value;

}

svg.Property.prototype.hasValue = function() {

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return (this.value != null && this.value !== '');

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}

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// return the numerical value of the property

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svg.Property.prototype.numValue = function() {

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if (!this.hasValue()) return 0;

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var n = parseFloat(this.value);

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if ((this.value + '').match(/%$/)) {

n = n / 100.0;

}

return n;

}

svg.Property.prototype.valueOrDefault = function(def) {

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if (this.hasValue()) return this.value;

return def;

}

svg.Property.prototype.numValueOrDefault = function(def) {

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if (this.hasValue()) return this.numValue();

return def;

}

// color extensions

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// augment the current color value with the opacity

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svg.Property.prototype.addOpacity = function(opacityProp) {

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var newValue = this.value;

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					if (opacityProp.value != null && opacityProp.value != '' && typeof(this.value)=='string') { // can only add opacity to colors, not patterns

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var color = new RGBColor(this.value);

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if (color.ok) {

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newValue = 'rgba(' + color.r + ', ' + color.g + ', ' + color.b + ', ' + opacityProp.numValue() + ')';

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}

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}

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return new svg.Property(this.name, newValue);

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}

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// definition extensions

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// get the definition from the definitions table

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svg.Property.prototype.getDefinition = function() {

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var name = this.value.match(/#([^\)'"]+)/);

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if (name) { name = name[1]; }

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if (!name) { name = this.value; }

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return svg.Definitions[name];

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}

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svg.Property.prototype.isUrlDefinition = function() {

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return this.value.indexOf('url(') == 0

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}

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svg.Property.prototype.getFillStyleDefinition = function(e, opacityProp) {

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var def = this.getDefinition();

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// gradient

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if (def != null && def.createGradient) {

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return def.createGradient(svg.ctx, e, opacityProp);

}

// pattern

if (def != null && def.createPattern) {

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if (def.getHrefAttribute().hasValue()) {

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var pt = def.attribute('patternTransform');

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def = def.getHrefAttribute().getDefinition();

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if (pt.hasValue()) { def.attribute('patternTransform', true).value = pt.value; }

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}

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return def.createPattern(svg.ctx, e);

}

return null;

}

// length extensions

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svg.Property.prototype.getDPI = function(viewPort) {

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return 96.0; // TODO: compute?

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}

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svg.Property.prototype.getEM = function(viewPort) {

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var em = 12;

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var fontSize = new svg.Property('fontSize', svg.Font.Parse(svg.ctx.font).fontSize);

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if (fontSize.hasValue()) em = fontSize.toPixels(viewPort);

return em;

}

svg.Property.prototype.getUnits = function() {

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var s = this.value+'';

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return s.replace(/[0-9\.\-]/g,'');

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}

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// get the length as pixels

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svg.Property.prototype.toPixels = function(viewPort, processPercent) {

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if (!this.hasValue()) return 0;

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var s = this.value+'';

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if (s.match(/em$/)) return this.numValue() * this.getEM(viewPort);

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if (s.match(/ex$/)) return this.numValue() * this.getEM(viewPort) / 2.0;

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if (s.match(/px$/)) return this.numValue();

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if (s.match(/pt$/)) return this.numValue() * this.getDPI(viewPort) * (1.0 / 72.0);

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if (s.match(/pc$/)) return this.numValue() * 15;

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if (s.match(/cm$/)) return this.numValue() * this.getDPI(viewPort) / 2.54;

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if (s.match(/mm$/)) return this.numValue() * this.getDPI(viewPort) / 25.4;

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if (s.match(/in$/)) return this.numValue() * this.getDPI(viewPort);

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if (s.match(/%$/)) return this.numValue() * svg.ViewPort.ComputeSize(viewPort);

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var n = this.numValue();

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if (processPercent && n < 1.0) return n * svg.ViewPort.ComputeSize(viewPort);

return n;

}

// time extensions

// get the time as milliseconds

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svg.Property.prototype.toMilliseconds = function() {

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if (!this.hasValue()) return 0;

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var s = this.value+'';

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if (s.match(/s$/)) return this.numValue() * 1000;

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if (s.match(/ms$/)) return this.numValue();

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return this.numValue();

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}

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// angle extensions

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// get the angle as radians

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svg.Property.prototype.toRadians = function() {

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if (!this.hasValue()) return 0;

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var s = this.value+'';

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if (s.match(/deg$/)) return this.numValue() * (Math.PI / 180.0);

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if (s.match(/grad$/)) return this.numValue() * (Math.PI / 200.0);

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if (s.match(/rad$/)) return this.numValue();

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return this.numValue() * (Math.PI / 180.0);

}

// text extensions

// get the text baseline

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var textBaselineMapping = {

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'baseline': 'alphabetic',

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'before-edge': 'top',

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'text-before-edge': 'top',

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'middle': 'middle',

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'central': 'middle',

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'after-edge': 'bottom',

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'text-after-edge': 'bottom',

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'ideographic': 'ideographic',

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'alphabetic': 'alphabetic',

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'hanging': 'hanging',

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'mathematical': 'alphabetic'

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};

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svg.Property.prototype.toTextBaseline = function () {

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if (!this.hasValue()) return null;

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return textBaselineMapping[this.value];

}

// fonts

svg.Font = new (function() {

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this.Styles = 'normal|italic|oblique|inherit';

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this.Variants = 'normal|small-caps|inherit';

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this.Weights = 'normal|bold|bolder|lighter|100|200|300|400|500|600|700|800|900|inherit';

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this.CreateFont = function(fontStyle, fontVariant, fontWeight, fontSize, fontFamily, inherit) {

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var f = inherit != null ? this.Parse(inherit) : this.CreateFont('', '', '', '', '', svg.ctx.font);

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return {

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fontFamily: fontFamily || f.fontFamily,

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fontSize: fontSize || f.fontSize,

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fontStyle: fontStyle || f.fontStyle,

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fontWeight: fontWeight || f.fontWeight,

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fontVariant: fontVariant || f.fontVariant,

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					toString: function () { return [this.fontStyle, this.fontVariant, this.fontWeight, this.fontSize, this.fontFamily].join(' ') }

}

}

var that = this;

this.Parse = function(s) {

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var f = {};

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var d = svg.trim(svg.compressSpaces(s || '')).split(' ');

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var set = { fontSize: false, fontStyle: false, fontWeight: false, fontVariant: false }

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var ff = '';

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for (var i=0; i<d.length; i++) {

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					if (!set.fontStyle && that.Styles.indexOf(d[i]) != -1) { if (d[i] != 'inherit') f.fontStyle = d[i]; set.fontStyle = true; }

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					else if (!set.fontVariant && that.Variants.indexOf(d[i]) != -1) { if (d[i] != 'inherit') f.fontVariant = d[i]; set.fontStyle = set.fontVariant = true;	}

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					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; }

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					else if (!set.fontSize) { if (d[i] != 'inherit') f.fontSize = d[i].split('/')[0]; set.fontStyle = set.fontVariant = set.fontWeight = set.fontSize = true; }

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else { if (d[i] != 'inherit') ff += d[i]; }

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} if (ff != '') f.fontFamily = ff;

return f;

}

});

// points and paths

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svg.ToNumberArray = function(s) {

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var a = svg.trim(svg.compressSpaces((s || '').replace(/,/g, ' '))).split(' ');

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for (var i=0; i<a.length; i++) {

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a[i] = parseFloat(a[i]);

}

return a;

}

svg.Point = function(x, y) {

this.x = x;

this.y = y;

}

svg.Point.prototype.angleTo = function(p) {

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return Math.atan2(p.y - this.y, p.x - this.x);

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}

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svg.Point.prototype.applyTransform = function(v) {

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var xp = this.x * v[0] + this.y * v[2] + v[4];

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var yp = this.x * v[1] + this.y * v[3] + v[5];

this.x = xp;

this.y = yp;

}

svg.CreatePoint = function(s) {

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var a = svg.ToNumberArray(s);

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return new svg.Point(a[0], a[1]);

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}

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svg.CreatePath = function(s) {

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var a = svg.ToNumberArray(s);

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var path = [];

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for (var i=0; i<a.length; i+=2) {

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path.push(new svg.Point(a[i], a[i+1]));

}

return path;

}

// bounding box

svg.BoundingBox = function(x1, y1, x2, y2) { // pass in initial points if you want

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this.x1 = Number.NaN;

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this.y1 = Number.NaN;

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this.x2 = Number.NaN;

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this.y2 = Number.NaN;

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this.x = function() { return this.x1; }

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this.y = function() { return this.y1; }

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this.width = function() { return this.x2 - this.x1; }

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this.height = function() { return this.y2 - this.y1; }

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this.addPoint = function(x, y) {

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if (x != null) {

490

if (isNaN(this.x1) || isNaN(this.x2)) {

this.x1 = x;

this.x2 = x;

}

if (x < this.x1) this.x1 = x;

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if (x > this.x2) this.x2 = x;

}

if (y != null) {

if (isNaN(this.y1) || isNaN(this.y2)) {

this.y1 = y;

this.y2 = y;

}

if (y < this.y1) this.y1 = y;

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if (y > this.y2) this.y2 = y;

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}

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}

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this.addX = function(x) { this.addPoint(x, null); }

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this.addY = function(y) { this.addPoint(null, y); }

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this.addBoundingBox = function(bb) {

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this.addPoint(bb.x1, bb.y1);

512

this.addPoint(bb.x2, bb.y2);

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}

514

515

this.addQuadraticCurve = function(p0x, p0y, p1x, p1y, p2x, p2y) {

516

var cp1x = p0x + 2/3 * (p1x - p0x); // CP1 = QP0 + 2/3 *(QP1-QP0)

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var cp1y = p0y + 2/3 * (p1y - p0y); // CP1 = QP0 + 2/3 *(QP1-QP0)

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var cp2x = cp1x + 1/3 * (p2x - p0x); // CP2 = CP1 + 1/3 *(QP2-QP0)

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var cp2y = cp1y + 1/3 * (p2y - p0y); // CP2 = CP1 + 1/3 *(QP2-QP0)

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this.addBezierCurve(p0x, p0y, cp1x, cp2x, cp1y, cp2y, p2x, p2y);

521

}

522

523

this.addBezierCurve = function(p0x, p0y, p1x, p1y, p2x, p2y, p3x, p3y) {

524

// from http://blog.hackers-cafe.net/2009/06/how-to-calculate-bezier-curves-bounding.html

525

var p0 = [p0x, p0y], p1 = [p1x, p1y], p2 = [p2x, p2y], p3 = [p3x, p3y];

526

this.addPoint(p0[0], p0[1]);

527

this.addPoint(p3[0], p3[1]);

528

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for (i=0; i<=1; i++) {

530

var f = function(t) {

531

return Math.pow(1-t, 3) * p0[i]

532

+ 3 * Math.pow(1-t, 2) * t * p1[i]

533

+ 3 * (1-t) * Math.pow(t, 2) * p2[i]

534

+ Math.pow(t, 3) * p3[i];

535

}

536

537

var b = 6 * p0[i] - 12 * p1[i] + 6 * p2[i];

538

var a = -3 * p0[i] + 9 * p1[i] - 9 * p2[i] + 3 * p3[i];

539

var c = 3 * p1[i] - 3 * p0[i];

540

541

if (a == 0) {

542

if (b == 0) continue;

543

var t = -c / b;

544

if (0 < t && t < 1) {

545

if (i == 0) this.addX(f(t));

546

if (i == 1) this.addY(f(t));

}

continue;

}

var b2ac = Math.pow(b, 2) - 4 * c * a;

552

if (b2ac < 0) continue;

553

var t1 = (-b + Math.sqrt(b2ac)) / (2 * a);

554

if (0 < t1 && t1 < 1) {

555

if (i == 0) this.addX(f(t1));

556

if (i == 1) this.addY(f(t1));

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}

558

var t2 = (-b - Math.sqrt(b2ac)) / (2 * a);

559

if (0 < t2 && t2 < 1) {

560

if (i == 0) this.addX(f(t2));

561

if (i == 1) this.addY(f(t2));

}

}

}

this.isPointInBox = function(x, y) {

567

return (this.x1 <= x && x <= this.x2 && this.y1 <= y && y <= this.y2);

568

}

569

570

this.addPoint(x1, y1);

571

this.addPoint(x2, y2);

}

// transforms

svg.Transform = function(v) {

var that = this;

this.Type = {}

// translate

this.Type.translate = function(s) {

581

this.p = svg.CreatePoint(s);

582

this.apply = function(ctx) {

583

ctx.translate(this.p.x || 0.0, this.p.y || 0.0);

584

}

585

this.unapply = function(ctx) {

586

ctx.translate(-1.0 * this.p.x || 0.0, -1.0 * this.p.y || 0.0);

587

}

588

this.applyToPoint = function(p) {

589

p.applyTransform([1, 0, 0, 1, this.p.x || 0.0, this.p.y || 0.0]);

}

}

// rotate

this.Type.rotate = function(s) {

595

var a = svg.ToNumberArray(s);

596

this.angle = new svg.Property('angle', a[0]);

597

this.cx = a[1] || 0;

598

this.cy = a[2] || 0;

599

this.apply = function(ctx) {

600

ctx.translate(this.cx, this.cy);

601

ctx.rotate(this.angle.toRadians());

602

ctx.translate(-this.cx, -this.cy);

603

}

604

this.unapply = function(ctx) {

605

ctx.translate(this.cx, this.cy);

606

ctx.rotate(-1.0 * this.angle.toRadians());

607

ctx.translate(-this.cx, -this.cy);

608

}

609

this.applyToPoint = function(p) {

610

var a = this.angle.toRadians();

611

p.applyTransform([1, 0, 0, 1, this.p.x || 0.0, this.p.y || 0.0]);

612

p.applyTransform([Math.cos(a), Math.sin(a), -Math.sin(a), Math.cos(a), 0, 0]);

613

p.applyTransform([1, 0, 0, 1, -this.p.x || 0.0, -this.p.y || 0.0]);

}

}

this.Type.scale = function(s) {

618

this.p = svg.CreatePoint(s);

619

this.apply = function(ctx) {

620

ctx.scale(this.p.x || 1.0, this.p.y || this.p.x || 1.0);

621

}

622

this.unapply = function(ctx) {

623

ctx.scale(1.0 / this.p.x || 1.0, 1.0 / this.p.y || this.p.x || 1.0);

624

}

625

this.applyToPoint = function(p) {

626

p.applyTransform([this.p.x || 0.0, 0, 0, this.p.y || 0.0, 0, 0]);

}

}

this.Type.matrix = function(s) {

631

this.m = svg.ToNumberArray(s);

632

this.apply = function(ctx) {

633

ctx.transform(this.m[0], this.m[1], this.m[2], this.m[3], this.m[4], this.m[5]);

634

}

635

this.unapply = function(ctx) {

var a = this.m[0];

var b = this.m[2];

var c = this.m[4];

var d = this.m[1];

var e = this.m[3];

var f = this.m[5];

var g = 0.0;

var h = 0.0;

var i = 1.0;

var det = 1 / (a*(e*i-f*h)-b*(d*i-f*g)+c*(d*h-e*g));

ctx.transform(

det*(e*i-f*h),

det*(f*g-d*i),

det*(c*h-b*i),

det*(a*i-c*g),

det*(b*f-c*e),

det*(c*d-a*f)

);

}

this.applyToPoint = function(p) {

656

p.applyTransform(this.m);

}

}

this.Type.SkewBase = function(s) {

661

this.base = that.Type.matrix;

662

this.base(s);

663

this.angle = new svg.Property('angle', s);

664

}

665

this.Type.SkewBase.prototype = new this.Type.matrix;

666

667

this.Type.skewX = function(s) {

668

this.base = that.Type.SkewBase;

669

this.base(s);

670

this.m = [1, 0, Math.tan(this.angle.toRadians()), 1, 0, 0];

671

}

672

this.Type.skewX.prototype = new this.Type.SkewBase;

673

674

this.Type.skewY = function(s) {

675

this.base = that.Type.SkewBase;

676

this.base(s);

677

this.m = [1, Math.tan(this.angle.toRadians()), 0, 1, 0, 0];

678

}

679

this.Type.skewY.prototype = new this.Type.SkewBase;

680

681

this.transforms = [];

682

683

this.apply = function(ctx) {

684

for (var i=0; i<this.transforms.length; i++) {

685

this.transforms[i].apply(ctx);

}

}

this.unapply = function(ctx) {

690

for (var i=this.transforms.length-1; i>=0; i--) {

691

this.transforms[i].unapply(ctx);

}

}

this.applyToPoint = function(p) {

696

for (var i=0; i<this.transforms.length; i++) {

697

this.transforms[i].applyToPoint(p);

}

}

			var data = svg.trim(svg.compressSpaces(v)).replace(/\)([a-zA-Z])/g, ') $1').replace(/\)(\s?,\s?)/g,') ').split(/\s(?=[a-z])/);

702

for (var i=0; i<data.length; i++) {

703

var type = svg.trim(data[i].split('(')[0]);

704

var s = data[i].split('(')[1].replace(')','');

705

var transform = new this.Type[type](s);

706

transform.type = type;

707

this.transforms.push(transform);

}

}

// aspect ratio

svg.AspectRatio = function(ctx, aspectRatio, width, desiredWidth, height, desiredHeight, minX, minY, refX, refY) {

713

// aspect ratio - http://www.w3.org/TR/SVG/coords.html#PreserveAspectRatioAttribute

714

aspectRatio = svg.compressSpaces(aspectRatio);

715

aspectRatio = aspectRatio.replace(/^defer\s/,''); // ignore defer

716

var align = aspectRatio.split(' ')[0] || 'xMidYMid';

717

var meetOrSlice = aspectRatio.split(' ')[1] || 'meet';

718

719

// calculate scale

720

var scaleX = width / desiredWidth;

721

var scaleY = height / desiredHeight;

722

var scaleMin = Math.min(scaleX, scaleY);

723

var scaleMax = Math.max(scaleX, scaleY);

724

if (meetOrSlice == 'meet') { desiredWidth *= scaleMin; desiredHeight *= scaleMin; }

725

if (meetOrSlice == 'slice') { desiredWidth *= scaleMax; desiredHeight *= scaleMax; }

726

727

refX = new svg.Property('refX', refX);

728

refY = new svg.Property('refY', refY);

729

if (refX.hasValue() && refY.hasValue()) {

730

ctx.translate(-scaleMin * refX.toPixels('x'), -scaleMin * refY.toPixels('y'));

}

else {

// align

				if (align.match(/^xMid/) && ((meetOrSlice == 'meet' && scaleMin == scaleY) || (meetOrSlice == 'slice' && scaleMax == scaleY))) ctx.translate(width / 2.0 - desiredWidth / 2.0, 0);

735

				if (align.match(/YMid$/) && ((meetOrSlice == 'meet' && scaleMin == scaleX) || (meetOrSlice == 'slice' && scaleMax == scaleX))) ctx.translate(0, height / 2.0 - desiredHeight / 2.0);

736

				if (align.match(/^xMax/) && ((meetOrSlice == 'meet' && scaleMin == scaleY) || (meetOrSlice == 'slice' && scaleMax == scaleY))) ctx.translate(width - desiredWidth, 0);

737

				if (align.match(/YMax$/) && ((meetOrSlice == 'meet' && scaleMin == scaleX) || (meetOrSlice == 'slice' && scaleMax == scaleX))) ctx.translate(0, height - desiredHeight);

}

// scale

if (align == 'none') ctx.scale(scaleX, scaleY);

742

else if (meetOrSlice == 'meet') ctx.scale(scaleMin, scaleMin);

743

else if (meetOrSlice == 'slice') ctx.scale(scaleMax, scaleMax);

744

745

// translate

746

ctx.translate(minX == null ? 0 : -minX, minY == null ? 0 : -minY);

}

// elements

svg.Element = {}

svg.EmptyProperty = new svg.Property('EMPTY', '');

753

754

svg.Element.ElementBase = function(node) {

755

this.attributes = {};

756

this.styles = {};

757

this.stylesSpecificity = {};

758

this.children = [];

759

760

// get or create attribute

761

this.attribute = function(name, createIfNotExists) {

762

var a = this.attributes[name];

763

if (a != null) return a;

764

765

if (createIfNotExists == true) { a = new svg.Property(name, ''); this.attributes[name] = a; }

766

return a || svg.EmptyProperty;

767

}

768

769

this.getHrefAttribute = function() {

770

for (var a in this.attributes) {

771

if (a == 'href' || a.match(/:href$/)) {

772

return this.attributes[a];

773

}

774

}

775

return svg.EmptyProperty;

776

}

777

778

// get or create style, crawls up node tree

779

this.style = function(name, createIfNotExists, skipAncestors) {

780

var s = this.styles[name];

781

if (s != null) return s;

782

783

var a = this.attribute(name);

784

if (a != null && a.hasValue()) {

785

this.styles[name] = a; // move up to me to cache

return a;

}

if (skipAncestors != true) {

790

var p = this.parent;

791

if (p != null) {

792

var ps = p.style(name);

793

if (ps != null && ps.hasValue()) {

return ps;

}

}

}

if (createIfNotExists == true) { s = new svg.Property(name, ''); this.styles[name] = s; }

800

return s || svg.EmptyProperty;

}

// base render

this.render = function(ctx) {

805

// don't render display=none

806

if (this.style('display').value == 'none') return;

807

808

// don't render visibility=hidden

809

if (this.style('visibility').value == 'hidden') return;

810

811

ctx.save();

812

if (this.style('mask').hasValue()) { // mask

813

var mask = this.style('mask').getDefinition();

814

if (mask != null) mask.apply(ctx, this);

815

}

816

else if (this.style('filter').hasValue()) { // filter

817

var filter = this.style('filter').getDefinition();

818

if (filter != null) filter.apply(ctx, this);

819

}

820

else {

821

this.setContext(ctx);

822

this.renderChildren(ctx);

823

this.clearContext(ctx);

}

ctx.restore();

}

// base set context

829

this.setContext = function(ctx) {

// OVERRIDE ME!

}

// base clear context

834

this.clearContext = function(ctx) {

// OVERRIDE ME!

}

// base render children

839

this.renderChildren = function(ctx) {

840

for (var i=0; i<this.children.length; i++) {

841

this.children[i].render(ctx);

}

}

this.addChild = function(childNode, create) {

846

var child = childNode;

847

if (create) child = svg.CreateElement(childNode);

848

child.parent = this;

849

if (child.type != 'title') { this.children.push(child); }

850

}

851

852

this.addStylesFromStyleDefinition = function () {

853

// add styles

854

for (var selector in svg.Styles) {

855

if (selector[0] != '@' && matchesSelector(node, selector)) {

856

var styles = svg.Styles[selector];

857

var specificity = svg.StylesSpecificity[selector];

858

if (styles != null) {

859

for (var name in styles) {

860

var existingSpecificity = this.stylesSpecificity[name];

861

if (typeof(existingSpecificity) == 'undefined') {

862

existingSpecificity = '000';

863

}

864

if (specificity > existingSpecificity) {

865

this.styles[name] = styles[name];

866

this.stylesSpecificity[name] = specificity;

}

}

}

}

}

};

if (node != null && node.nodeType == 1) { //ELEMENT_NODE

875

// add attributes

876

for (var i=0; i<node.attributes.length; i++) {

877

var attribute = node.attributes[i];

878

this.attributes[attribute.nodeName] = new svg.Property(attribute.nodeName, attribute.value);

879

}

880

881

this.addStylesFromStyleDefinition();

882

883

// add inline styles

884

if (this.attribute('style').hasValue()) {

885

var styles = this.attribute('style').value.split(';');

886

for (var i=0; i<styles.length; i++) {

887

if (svg.trim(styles[i]) != '') {

888

var style = styles[i].split(':');

889

var name = svg.trim(style[0]);

890

var value = svg.trim(style[1]);

891

this.styles[name] = new svg.Property(name, value);

}

}

}

// add id

if (this.attribute('id').hasValue()) {

898

if (svg.Definitions[this.attribute('id').value] == null) {

899

svg.Definitions[this.attribute('id').value] = this;

}

}

// add children

for (var i=0; i<node.childNodes.length; i++) {

905

var childNode = node.childNodes[i];

906

if (childNode.nodeType == 1) this.addChild(childNode, true); //ELEMENT_NODE

907

if (this.captureTextNodes && (childNode.nodeType == 3 || childNode.nodeType == 4)) {

908

var text = childNode.value || childNode.text || childNode.textContent || '';

909

if (svg.compressSpaces(text) != '') {

910

this.addChild(new svg.Element.tspan(childNode), false); // TEXT_NODE

}

}

}

}

}

svg.Element.RenderedElementBase = function(node) {

918

this.base = svg.Element.ElementBase;

919

this.base(node);

920

921

this.setContext = function(ctx) {

922

// fill

923

if (this.style('fill').isUrlDefinition()) {

924

var fs = this.style('fill').getFillStyleDefinition(this, this.style('fill-opacity'));

925

if (fs != null) ctx.fillStyle = fs;

926

}

927

else if (this.style('fill').hasValue()) {

928

var fillStyle = this.style('fill');

929

if (fillStyle.value == 'currentColor') fillStyle.value = this.style('color').value;

930

if (fillStyle.value != 'inherit') ctx.fillStyle = (fillStyle.value == 'none' ? 'rgba(0,0,0,0)' : fillStyle.value);

931

}

932

if (this.style('fill-opacity').hasValue()) {

933

var fillStyle = new svg.Property('fill', ctx.fillStyle);

934

fillStyle = fillStyle.addOpacity(this.style('fill-opacity'));

935

ctx.fillStyle = fillStyle.value;

}

// stroke

if (this.style('stroke').isUrlDefinition()) {

940

var fs = this.style('stroke').getFillStyleDefinition(this, this.style('stroke-opacity'));

941

if (fs != null) ctx.strokeStyle = fs;

942

}

943

else if (this.style('stroke').hasValue()) {

944

var strokeStyle = this.style('stroke');

945

if (strokeStyle.value == 'currentColor') strokeStyle.value = this.style('color').value;

946

					if (strokeStyle.value != 'inherit') ctx.strokeStyle = (strokeStyle.value == 'none' ? 'rgba(0,0,0,0)' : strokeStyle.value);

947

}

948

if (this.style('stroke-opacity').hasValue()) {

949

var strokeStyle = new svg.Property('stroke', ctx.strokeStyle);

950

strokeStyle = strokeStyle.addOpacity(this.style('stroke-opacity'));

951

ctx.strokeStyle = strokeStyle.value;

952

}

953

if (this.style('stroke-width').hasValue()) {

954

var newLineWidth = this.style('stroke-width').toPixels();

955

ctx.lineWidth = newLineWidth == 0 ? 0.001 : newLineWidth; // browsers don't respect 0

956

}

957

if (this.style('stroke-linecap').hasValue()) ctx.lineCap = this.style('stroke-linecap').value;

958

if (this.style('stroke-linejoin').hasValue()) ctx.lineJoin = this.style('stroke-linejoin').value;

959

if (this.style('stroke-miterlimit').hasValue()) ctx.miterLimit = this.style('stroke-miterlimit').value;

960

if (this.style('stroke-dasharray').hasValue() && this.style('stroke-dasharray').value != 'none') {

961

var gaps = svg.ToNumberArray(this.style('stroke-dasharray').value);

962

if (typeof(ctx.setLineDash) != 'undefined') { ctx.setLineDash(gaps); }

963

else if (typeof(ctx.webkitLineDash) != 'undefined') { ctx.webkitLineDash = gaps; }

964

else if (typeof(ctx.mozDash) != 'undefined' && !(gaps.length==1 && gaps[0]==0)) { ctx.mozDash = gaps; }

965

966

var offset = this.style('stroke-dashoffset').numValueOrDefault(1);

967

if (typeof(ctx.lineDashOffset) != 'undefined') { ctx.lineDashOffset = offset; }

968

else if (typeof(ctx.webkitLineDashOffset) != 'undefined') { ctx.webkitLineDashOffset = offset; }

969

else if (typeof(ctx.mozDashOffset) != 'undefined') { ctx.mozDashOffset = offset; }

}

// font

if (typeof(ctx.font) != 'undefined') {

974

ctx.font = svg.Font.CreateFont(

975

this.style('font-style').value,

976

this.style('font-variant').value,

977

this.style('font-weight').value,

978

this.style('font-size').hasValue() ? this.style('font-size').toPixels() + 'px' : '',

979

this.style('font-family').value).toString();

}

// transform

if (this.style('transform', false, true).hasValue()) {

984

var transform = new svg.Transform(this.style('transform', false, true).value);

985

transform.apply(ctx);

}

// clip

if (this.style('clip-path', false, true).hasValue()) {

990

var clip = this.style('clip-path', false, true).getDefinition();

991

if (clip != null) clip.apply(ctx);

}

// opacity

if (this.style('opacity').hasValue()) {

996

ctx.globalAlpha = this.style('opacity').numValue();

}

}

}

svg.Element.RenderedElementBase.prototype = new svg.Element.ElementBase;

1001

1002

svg.Element.PathElementBase = function(node) {

1003

this.base = svg.Element.RenderedElementBase;

1004

this.base(node);

1005

1006

this.path = function(ctx) {

1007

if (ctx != null) ctx.beginPath();

1008

return new svg.BoundingBox();

1009

}

1010

1011

this.renderChildren = function(ctx) {

1012

this.path(ctx);

1013

svg.Mouse.checkPath(this, ctx);

1014

if (ctx.fillStyle != '') {

1015

if (this.style('fill-rule').valueOrDefault('inherit') != 'inherit') { ctx.fill(this.style('fill-rule').value); }

1016

else { ctx.fill(); }

1017

}

1018

if (ctx.strokeStyle != '') ctx.stroke();

1019

1020

var markers = this.getMarkers();

1021

if (markers != null) {

1022

if (this.style('marker-start').isUrlDefinition()) {

1023

var marker = this.style('marker-start').getDefinition();

1024

marker.render(ctx, markers[0][0], markers[0][1]);

1025

}

1026

if (this.style('marker-mid').isUrlDefinition()) {

1027

var marker = this.style('marker-mid').getDefinition();

1028

for (var i=1;i<markers.length-1;i++) {

1029

marker.render(ctx, markers[i][0], markers[i][1]);

1030

}

1031

}

1032

if (this.style('marker-end').isUrlDefinition()) {

1033

var marker = this.style('marker-end').getDefinition();

1034

marker.render(ctx, markers[markers.length-1][0], markers[markers.length-1][1]);

}

}

}

this.getBoundingBox = function() {

1040

return this.path();

1041

}

1042

1043

this.getMarkers = function() {

return null;

}

}

svg.Element.PathElementBase.prototype = new svg.Element.RenderedElementBase;

1048

1049

// svg element

1050

svg.Element.svg = function(node) {

1051

this.base = svg.Element.RenderedElementBase;

1052

this.base(node);

1053

1054

this.baseClearContext = this.clearContext;

1055

this.clearContext = function(ctx) {

1056

this.baseClearContext(ctx);

1057

svg.ViewPort.RemoveCurrent();

1058

}

1059

1060

this.baseSetContext = this.setContext;

1061

this.setContext = function(ctx) {

1062

// initial values and defaults

1063

ctx.strokeStyle = 'rgba(0,0,0,0)';

1064

ctx.lineCap = 'butt';

1065

ctx.lineJoin = 'miter';

1066

ctx.miterLimit = 4;

1067

if (typeof(ctx.font) != 'undefined' && typeof(window.getComputedStyle) != 'undefined') {

1068

ctx.font = window.getComputedStyle(ctx.canvas).getPropertyValue('font');

1069

}

1070

1071

this.baseSetContext(ctx);

1072

1073

// create new view port

1074

if (!this.attribute('x').hasValue()) this.attribute('x', true).value = 0;

1075

if (!this.attribute('y').hasValue()) this.attribute('y', true).value = 0;

1076

ctx.translate(this.attribute('x').toPixels('x'), this.attribute('y').toPixels('y'));

1077

1078

var width = svg.ViewPort.width();

1079

var height = svg.ViewPort.height();

1080

1081

if (!this.attribute('width').hasValue()) this.attribute('width', true).value = '100%';

1082

if (!this.attribute('height').hasValue()) this.attribute('height', true).value = '100%';

1083

if (typeof(this.root) == 'undefined') {

1084

width = this.attribute('width').toPixels('x');

1085

height = this.attribute('height').toPixels('y');

var x = 0;

var y = 0;

if (this.attribute('refX').hasValue() && this.attribute('refY').hasValue()) {

1090

x = -this.attribute('refX').toPixels('x');

1091

y = -this.attribute('refY').toPixels('y');

1092

}

1093

1094

if (this.attribute('overflow').valueOrDefault('hidden') != 'visible') {

1095

ctx.beginPath();

1096

ctx.moveTo(x, y);

1097

ctx.lineTo(width, y);

1098

ctx.lineTo(width, height);

1099

ctx.lineTo(x, height);

ctx.closePath();

ctx.clip();

}

}

svg.ViewPort.SetCurrent(width, height);

1105

1106

// viewbox

1107

if (this.attribute('viewBox').hasValue()) {

1108

var viewBox = svg.ToNumberArray(this.attribute('viewBox').value);

1109

var minX = viewBox[0];

1110

var minY = viewBox[1];

1111

width = viewBox[2];

1112

height = viewBox[3];

1113

1114

svg.AspectRatio(ctx,

1115

this.attribute('preserveAspectRatio').value,

1116

svg.ViewPort.width(),

1117

width,

1118

svg.ViewPort.height(),

height,

minX,

minY,

this.attribute('refX').value,

1123

this.attribute('refY').value);

1124

1125

svg.ViewPort.RemoveCurrent();

1126

svg.ViewPort.SetCurrent(viewBox[2], viewBox[3]);

}

}

}

svg.Element.svg.prototype = new svg.Element.RenderedElementBase;

1131

1132

// rect element

1133

svg.Element.rect = function(node) {

1134

this.base = svg.Element.PathElementBase;

1135

this.base(node);

1136

1137

this.path = function(ctx) {

1138

var x = this.attribute('x').toPixels('x');

1139

var y = this.attribute('y').toPixels('y');

1140

var width = this.attribute('width').toPixels('x');

1141

var height = this.attribute('height').toPixels('y');

1142

var rx = this.attribute('rx').toPixels('x');

1143

var ry = this.attribute('ry').toPixels('y');

1144

if (this.attribute('rx').hasValue() && !this.attribute('ry').hasValue()) ry = rx;

1145

if (this.attribute('ry').hasValue() && !this.attribute('rx').hasValue()) rx = ry;

1146

rx = Math.min(rx, width / 2.0);

1147

ry = Math.min(ry, height / 2.0);

1148

if (ctx != null) {

1149

ctx.beginPath();

1150

ctx.moveTo(x + rx, y);

1151

ctx.lineTo(x + width - rx, y);

1152

ctx.quadraticCurveTo(x + width, y, x + width, y + ry)

1153

ctx.lineTo(x + width, y + height - ry);

1154

ctx.quadraticCurveTo(x + width, y + height, x + width - rx, y + height)

1155

ctx.lineTo(x + rx, y + height);

1156

ctx.quadraticCurveTo(x, y + height, x, y + height - ry)

1157

ctx.lineTo(x, y + ry);

1158

ctx.quadraticCurveTo(x, y, x + rx, y)

ctx.closePath();

}

return new svg.BoundingBox(x, y, x + width, y + height);

1163

}

1164

}

1165

svg.Element.rect.prototype = new svg.Element.PathElementBase;

1166

1167

// circle element

1168

svg.Element.circle = function(node) {

1169

this.base = svg.Element.PathElementBase;

1170

this.base(node);

1171

1172

this.path = function(ctx) {

1173

var cx = this.attribute('cx').toPixels('x');

1174

var cy = this.attribute('cy').toPixels('y');

1175

var r = this.attribute('r').toPixels();

if (ctx != null) {

ctx.beginPath();

ctx.arc(cx, cy, r, 0, Math.PI * 2, true);

ctx.closePath();

}

return new svg.BoundingBox(cx - r, cy - r, cx + r, cy + r);

1184

}

1185

}

1186

svg.Element.circle.prototype = new svg.Element.PathElementBase;

1187

1188

// ellipse element

1189

svg.Element.ellipse = function(node) {

1190

this.base = svg.Element.PathElementBase;

1191

this.base(node);

1192

1193

this.path = function(ctx) {

1194

var KAPPA = 4 * ((Math.sqrt(2) - 1) / 3);

1195

var rx = this.attribute('rx').toPixels('x');

1196

var ry = this.attribute('ry').toPixels('y');

1197

var cx = this.attribute('cx').toPixels('x');

1198

var cy = this.attribute('cy').toPixels('y');

if (ctx != null) {

ctx.beginPath();

ctx.moveTo(cx, cy - ry);

1203

ctx.bezierCurveTo(cx + (KAPPA * rx), cy - ry, cx + rx, cy - (KAPPA * ry), cx + rx, cy);

1204

ctx.bezierCurveTo(cx + rx, cy + (KAPPA * ry), cx + (KAPPA * rx), cy + ry, cx, cy + ry);

1205

ctx.bezierCurveTo(cx - (KAPPA * rx), cy + ry, cx - rx, cy + (KAPPA * ry), cx - rx, cy);

1206

ctx.bezierCurveTo(cx - rx, cy - (KAPPA * ry), cx - (KAPPA * rx), cy - ry, cx, cy - ry);

ctx.closePath();

}

return new svg.BoundingBox(cx - rx, cy - ry, cx + rx, cy + ry);

1211

}

1212

}

1213

svg.Element.ellipse.prototype = new svg.Element.PathElementBase;

1214

1215

// line element

1216

svg.Element.line = function(node) {

1217

this.base = svg.Element.PathElementBase;

1218

this.base(node);

1219

1220

this.getPoints = function() {

1221

return [

1222

new svg.Point(this.attribute('x1').toPixels('x'), this.attribute('y1').toPixels('y')),

1223

new svg.Point(this.attribute('x2').toPixels('x'), this.attribute('y2').toPixels('y'))];

1224

}

1225

1226

this.path = function(ctx) {

1227

var points = this.getPoints();

if (ctx != null) {

ctx.beginPath();

ctx.moveTo(points[0].x, points[0].y);

1232

ctx.lineTo(points[1].x, points[1].y);

1233

}

1234

1235

return new svg.BoundingBox(points[0].x, points[0].y, points[1].x, points[1].y);

1236

}

1237

1238

this.getMarkers = function() {

1239

var points = this.getPoints();

1240

var a = points[0].angleTo(points[1]);

1241

return [[points[0], a], [points[1], a]];

1242

}

1243

}

1244

svg.Element.line.prototype = new svg.Element.PathElementBase;

1245

1246

// polyline element

1247

svg.Element.polyline = function(node) {

1248

this.base = svg.Element.PathElementBase;

1249

this.base(node);

1250

1251

this.points = svg.CreatePath(this.attribute('points').value);

1252

this.path = function(ctx) {

1253

var bb = new svg.BoundingBox(this.points[0].x, this.points[0].y);

1254

if (ctx != null) {

1255

ctx.beginPath();

1256

ctx.moveTo(this.points[0].x, this.points[0].y);

1257

}

1258

for (var i=1; i<this.points.length; i++) {

1259

bb.addPoint(this.points[i].x, this.points[i].y);

1260

if (ctx != null) ctx.lineTo(this.points[i].x, this.points[i].y);

}

return bb;

}

this.getMarkers = function() {

1266

var markers = [];

1267

for (var i=0; i<this.points.length - 1; i++) {

1268

markers.push([this.points[i], this.points[i].angleTo(this.points[i+1])]);

1269

}

1270

markers.push([this.points[this.points.length-1], markers[markers.length-1][1]]);

return markers;

}

}

svg.Element.polyline.prototype = new svg.Element.PathElementBase;

1275

1276

// polygon element

1277

svg.Element.polygon = function(node) {

1278

this.base = svg.Element.polyline;

1279

this.base(node);

1280

1281

this.basePath = this.path;

1282

this.path = function(ctx) {

1283

var bb = this.basePath(ctx);

1284

if (ctx != null) {

1285

ctx.lineTo(this.points[0].x, this.points[0].y);

ctx.closePath();

}

return bb;

}

}

svg.Element.polygon.prototype = new svg.Element.polyline;

1292

1293

// path element

1294

svg.Element.path = function(node) {

1295

this.base = svg.Element.PathElementBase;

1296

this.base(node);

1297

1298

var d = this.attribute('d').value;

1299

// TODO: convert to real lexer based on http://www.w3.org/TR/SVG11/paths.html#PathDataBNF

1300

d = d.replace(/,/gm,' '); // get rid of all commas

1301

// As the end of a match can also be the start of the next match, we need to run this replace twice.

1302

for(var i=0; i<2; i++)

1303

d = d.replace(/([MmZzLlHhVvCcSsQqTtAa])([^\s])/gm,'$1 $2'); // suffix commands with spaces

1304

d = d.replace(/([^\s])([MmZzLlHhVvCcSsQqTtAa])/gm,'$1 $2'); // prefix commands with spaces

1305

d = d.replace(/([0-9])([+\-])/gm,'$1 $2'); // separate digits on +- signs

1306

// Again, we need to run this twice to find all occurances

1307

for(var i=0; i<2; i++)

1308

d = d.replace(/(\.[0-9]*)(\.)/gm,'$1 $2'); // separate digits when they start with a comma

1309

d = d.replace(/([Aa](\s+[0-9]+){3})\s+([01])\s*([01])/gm,'$1 $3 $4 '); // shorthand elliptical arc path syntax

1310

d = svg.compressSpaces(d); // compress multiple spaces

1311

d = svg.trim(d);

1312

this.PathParser = new (function(d) {

1313

this.tokens = d.split(' ');

1314

1315

this.reset = function() {

1316

this.i = -1;

1317

this.command = '';

1318

this.previousCommand = '';

1319

this.start = new svg.Point(0, 0);

1320

this.control = new svg.Point(0, 0);

1321

this.current = new svg.Point(0, 0);

this.points = [];

this.angles = [];

}

this.isEnd = function() {

1327

return this.i >= this.tokens.length - 1;

1328

}

1329

1330

this.isCommandOrEnd = function() {

1331

if (this.isEnd()) return true;

1332

return this.tokens[this.i + 1].match(/^[A-Za-z]$/) != null;

1333

}

1334

1335

this.isRelativeCommand = function() {

1336

switch(this.command)

{

case 'm':

case 'l':

case 'h':

case 'v':

case 'c':

case 's':

case 'q':

case 't':

case 'a':

case 'z':

return true;

break;

}

return false;

}

this.getToken = function() {

1355

this.i++;

1356

return this.tokens[this.i];

1357

}

1358

1359

this.getScalar = function() {

1360

return parseFloat(this.getToken());

1361

}

1362

1363

this.nextCommand = function() {

1364

this.previousCommand = this.command;

1365

this.command = this.getToken();

1366

}

1367

1368

this.getPoint = function() {

1369

var p = new svg.Point(this.getScalar(), this.getScalar());

1370

return this.makeAbsolute(p);

1371

}

1372

1373

this.getAsControlPoint = function() {

1374

var p = this.getPoint();

this.control = p;

return p;

}

this.getAsCurrentPoint = function() {

1380

var p = this.getPoint();

this.current = p;

return p;

}

this.getReflectedControlPoint = function() {

1386

if (this.previousCommand.toLowerCase() != 'c' &&

1387

this.previousCommand.toLowerCase() != 's' &&

1388

this.previousCommand.toLowerCase() != 'q' &&

1389

this.previousCommand.toLowerCase() != 't' ){

1390

return this.current;

}

// reflect point

var p = new svg.Point(2 * this.current.x - this.control.x, 2 * this.current.y - this.control.y);

return p;

}

this.makeAbsolute = function(p) {

1399

if (this.isRelativeCommand()) {

1400

p.x += this.current.x;

1401

p.y += this.current.y;

}

return p;

}

this.addMarker = function(p, from, priorTo) {

1407

// if the last angle isn't filled in because we didn't have this point yet ...

1408

if (priorTo != null && this.angles.length > 0 && this.angles[this.angles.length-1] == null) {

1409

this.angles[this.angles.length-1] = this.points[this.points.length-1].angleTo(priorTo);

1410

}

1411

this.addMarkerAngle(p, from == null ? null : from.angleTo(p));

1412

}

1413

1414

this.addMarkerAngle = function(p, a) {

1415

this.points.push(p);

1416

this.angles.push(a);

1417

}

1418

1419

this.getMarkerPoints = function() { return this.points; }

1420

this.getMarkerAngles = function() {

1421

for (var i=0; i<this.angles.length; i++) {

1422

if (this.angles[i] == null) {

1423

for (var j=i+1; j<this.angles.length; j++) {

1424

if (this.angles[j] != null) {

1425

this.angles[i] = this.angles[j];

break;

}

}

}

}

return this.angles;

}

})(d);

this.path = function(ctx) {

1436

var pp = this.PathParser;

1437

pp.reset();

1438

1439

var bb = new svg.BoundingBox();

1440

if (ctx != null) ctx.beginPath();

1441

while (!pp.isEnd()) {

1442

pp.nextCommand();

1443

switch (pp.command) {

1444

case 'M':

1445

case 'm':

1446

var p = pp.getAsCurrentPoint();

1447

pp.addMarker(p);

1448

bb.addPoint(p.x, p.y);

1449

if (ctx != null) ctx.moveTo(p.x, p.y);

1450

pp.start = pp.current;

1451

while (!pp.isCommandOrEnd()) {

1452

var p = pp.getAsCurrentPoint();

1453

pp.addMarker(p, pp.start);

1454

bb.addPoint(p.x, p.y);

1455

if (ctx != null) ctx.lineTo(p.x, p.y);

}

break;

case 'L':

case 'l':

while (!pp.isCommandOrEnd()) {

1461

var c = pp.current;

1462

var p = pp.getAsCurrentPoint();

1463

pp.addMarker(p, c);

1464

bb.addPoint(p.x, p.y);

1465

if (ctx != null) ctx.lineTo(p.x, p.y);

}

break;

case 'H':

case 'h':

while (!pp.isCommandOrEnd()) {

1471

var newP = new svg.Point((pp.isRelativeCommand() ? pp.current.x : 0) + pp.getScalar(), pp.current.y);

1472

pp.addMarker(newP, pp.current);

1473

pp.current = newP;

1474

bb.addPoint(pp.current.x, pp.current.y);

1475

if (ctx != null) ctx.lineTo(pp.current.x, pp.current.y);

}

break;

case 'V':

case 'v':

while (!pp.isCommandOrEnd()) {

1481

var newP = new svg.Point(pp.current.x, (pp.isRelativeCommand() ? pp.current.y : 0) + pp.getScalar());

1482

pp.addMarker(newP, pp.current);

1483

pp.current = newP;

1484

bb.addPoint(pp.current.x, pp.current.y);

1485

if (ctx != null) ctx.lineTo(pp.current.x, pp.current.y);

}

break;

case 'C':

case 'c':

while (!pp.isCommandOrEnd()) {

1491

var curr = pp.current;

1492

var p1 = pp.getPoint();

1493

var cntrl = pp.getAsControlPoint();

1494

var cp = pp.getAsCurrentPoint();

1495

pp.addMarker(cp, cntrl, p1);

1496

bb.addBezierCurve(curr.x, curr.y, p1.x, p1.y, cntrl.x, cntrl.y, cp.x, cp.y);

1497

if (ctx != null) ctx.bezierCurveTo(p1.x, p1.y, cntrl.x, cntrl.y, cp.x, cp.y);

}

break;

case 'S':

case 's':

while (!pp.isCommandOrEnd()) {

1503

var curr = pp.current;

1504

var p1 = pp.getReflectedControlPoint();

1505

var cntrl = pp.getAsControlPoint();

1506

var cp = pp.getAsCurrentPoint();

1507

pp.addMarker(cp, cntrl, p1);

1508

bb.addBezierCurve(curr.x, curr.y, p1.x, p1.y, cntrl.x, cntrl.y, cp.x, cp.y);

1509

if (ctx != null) ctx.bezierCurveTo(p1.x, p1.y, cntrl.x, cntrl.y, cp.x, cp.y);

}

break;

case 'Q':

case 'q':

while (!pp.isCommandOrEnd()) {

1515

var curr = pp.current;

1516

var cntrl = pp.getAsControlPoint();

1517

var cp = pp.getAsCurrentPoint();

1518

pp.addMarker(cp, cntrl, cntrl);

1519

bb.addQuadraticCurve(curr.x, curr.y, cntrl.x, cntrl.y, cp.x, cp.y);

1520

if (ctx != null) ctx.quadraticCurveTo(cntrl.x, cntrl.y, cp.x, cp.y);

}

break;

case 'T':

case 't':

while (!pp.isCommandOrEnd()) {

1526

var curr = pp.current;

1527

var cntrl = pp.getReflectedControlPoint();

1528

pp.control = cntrl;

1529

var cp = pp.getAsCurrentPoint();

1530

pp.addMarker(cp, cntrl, cntrl);

1531

bb.addQuadraticCurve(curr.x, curr.y, cntrl.x, cntrl.y, cp.x, cp.y);

1532

if (ctx != null) ctx.quadraticCurveTo(cntrl.x, cntrl.y, cp.x, cp.y);

}

break;

case 'A':

case 'a':

while (!pp.isCommandOrEnd()) {

1538

var curr = pp.current;

1539

var rx = pp.getScalar();

1540

var ry = pp.getScalar();

1541

var xAxisRotation = pp.getScalar() * (Math.PI / 180.0);

1542

var largeArcFlag = pp.getScalar();

1543

var sweepFlag = pp.getScalar();

1544

var cp = pp.getAsCurrentPoint();

1545

1546

// Conversion from endpoint to center parameterization

1547

// http://www.w3.org/TR/SVG11/implnote.html#ArcImplementationNotes

1548

// x1', y1'

1549

var currp = new svg.Point(

1550

Math.cos(xAxisRotation) * (curr.x - cp.x) / 2.0 + Math.sin(xAxisRotation) * (curr.y - cp.y) / 2.0,

1551

-Math.sin(xAxisRotation) * (curr.x - cp.x) / 2.0 + Math.cos(xAxisRotation) * (curr.y - cp.y) / 2.0

1552

);

1553

// adjust radii

1554

var l = Math.pow(currp.x,2)/Math.pow(rx,2)+Math.pow(currp.y,2)/Math.pow(ry,2);

1555

if (l > 1) {

1556

rx *= Math.sqrt(l);

1557

ry *= Math.sqrt(l);

1558

}

1559

// cx', cy'

1560

var s = (largeArcFlag == sweepFlag ? -1 : 1) * Math.sqrt(

1561

((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))) /

1562

(Math.pow(rx,2)*Math.pow(currp.y,2)+Math.pow(ry,2)*Math.pow(currp.x,2))

1563

);

1564

if (isNaN(s)) s = 0;

1565

var cpp = new svg.Point(s * rx * currp.y / ry, s * -ry * currp.x / rx);

1566

// cx, cy

1567

var centp = new svg.Point(

1568

(curr.x + cp.x) / 2.0 + Math.cos(xAxisRotation) * cpp.x - Math.sin(xAxisRotation) * cpp.y,

1569

(curr.y + cp.y) / 2.0 + Math.sin(xAxisRotation) * cpp.x + Math.cos(xAxisRotation) * cpp.y

1570

);

1571

// vector magnitude

1572

var m = function(v) { return Math.sqrt(Math.pow(v[0],2) + Math.pow(v[1],2)); }

1573

// ratio between two vectors

1574

var r = function(u, v) { return (u[0]*v[0]+u[1]*v[1]) / (m(u)*m(v)) }

1575

// angle between two vectors

1576

var a = function(u, v) { return (u[0]*v[1] < u[1]*v[0] ? -1 : 1) * Math.acos(r(u,v)); }

1577

// initial angle

1578

var a1 = a([1,0], [(currp.x-cpp.x)/rx,(currp.y-cpp.y)/ry]);

1579

// angle delta

1580

var u = [(currp.x-cpp.x)/rx,(currp.y-cpp.y)/ry];

1581

var v = [(-currp.x-cpp.x)/rx,(-currp.y-cpp.y)/ry];

1582

var ad = a(u, v);

1583

if (r(u,v) <= -1) ad = Math.PI;

1584

if (r(u,v) >= 1) ad = 0;

1585

1586

// for markers

1587

var dir = 1 - sweepFlag ? 1.0 : -1.0;

1588

var ah = a1 + dir * (ad / 2.0);

1589

var halfWay = new svg.Point(

1590

centp.x + rx * Math.cos(ah),

1591

centp.y + ry * Math.sin(ah)

1592

);

1593

pp.addMarkerAngle(halfWay, ah - dir * Math.PI / 2);

1594

pp.addMarkerAngle(cp, ah - dir * Math.PI);

1595

1596

bb.addPoint(cp.x, cp.y); // TODO: this is too naive, make it better

1597

if (ctx != null) {

1598

var r = rx > ry ? rx : ry;

1599

var sx = rx > ry ? 1 : rx / ry;

1600

var sy = rx > ry ? ry / rx : 1;

1601

1602

ctx.translate(centp.x, centp.y);

1603

ctx.rotate(xAxisRotation);

1604

ctx.scale(sx, sy);

1605

ctx.arc(0, 0, r, a1, a1 + ad, 1 - sweepFlag);

1606

ctx.scale(1/sx, 1/sy);

1607

ctx.rotate(-xAxisRotation);

1608

ctx.translate(-centp.x, -centp.y);

}

}

break;

case 'Z':

case 'z':

if (ctx != null) ctx.closePath();

1615

pp.current = pp.start;

}

}

return bb;

}

this.getMarkers = function() {

1623

var points = this.PathParser.getMarkerPoints();

1624

var angles = this.PathParser.getMarkerAngles();

1625

1626

var markers = [];

1627

for (var i=0; i<points.length; i++) {

1628

markers.push([points[i], angles[i]]);

}

return markers;

}

}

svg.Element.path.prototype = new svg.Element.PathElementBase;

1634

1635

// pattern element

1636

svg.Element.pattern = function(node) {

1637

this.base = svg.Element.ElementBase;

1638

this.base(node);

1639

1640

this.createPattern = function(ctx, element) {

1641

var width = this.attribute('width').toPixels('x', true);

1642

var height = this.attribute('height').toPixels('y', true);

1643

1644

// render me using a temporary svg element

1645

var tempSvg = new svg.Element.svg();

1646

tempSvg.attributes['viewBox'] = new svg.Property('viewBox', this.attribute('viewBox').value);

1647

tempSvg.attributes['width'] = new svg.Property('width', width + 'px');

1648

tempSvg.attributes['height'] = new svg.Property('height', height + 'px');

1649

tempSvg.attributes['transform'] = new svg.Property('transform', this.attribute('patternTransform').value);

1650

tempSvg.children = this.children;

1651

1652

var c = document.createElement('canvas');

1653

c.width = width;

1654

c.height = height;

1655

var cctx = c.getContext('2d');

1656

if (this.attribute('x').hasValue() && this.attribute('y').hasValue()) {

1657

cctx.translate(this.attribute('x').toPixels('x', true), this.attribute('y').toPixels('y', true));

1658

}

1659

// render 3x3 grid so when we transform there's no white space on edges

1660

for (var x=-1; x<=1; x++) {

1661

for (var y=-1; y<=1; y++) {

1662

cctx.save();

1663

tempSvg.attributes['x'] = new svg.Property('x', x * c.width);

1664

tempSvg.attributes['y'] = new svg.Property('y', y * c.height);

1665

tempSvg.render(cctx);

cctx.restore();

}

}

var pattern = ctx.createPattern(c, 'repeat');

return pattern;

}

}

svg.Element.pattern.prototype = new svg.Element.ElementBase;

1674

1675

// marker element

1676

svg.Element.marker = function(node) {

1677

this.base = svg.Element.ElementBase;

1678

this.base(node);

1679

1680

this.baseRender = this.render;

1681

this.render = function(ctx, point, angle) {

1682

ctx.translate(point.x, point.y);

1683

if (this.attribute('orient').valueOrDefault('auto') == 'auto') ctx.rotate(angle);

1684

				if (this.attribute('markerUnits').valueOrDefault('strokeWidth') == 'strokeWidth') ctx.scale(ctx.lineWidth, ctx.lineWidth);

1685

ctx.save();

1686

1687

// render me using a temporary svg element

1688

var tempSvg = new svg.Element.svg();

1689

tempSvg.attributes['viewBox'] = new svg.Property('viewBox', this.attribute('viewBox').value);

1690

tempSvg.attributes['refX'] = new svg.Property('refX', this.attribute('refX').value);

1691

tempSvg.attributes['refY'] = new svg.Property('refY', this.attribute('refY').value);

1692

tempSvg.attributes['width'] = new svg.Property('width', this.attribute('markerWidth').value);

1693

tempSvg.attributes['height'] = new svg.Property('height', this.attribute('markerHeight').value);

1694

tempSvg.attributes['fill'] = new svg.Property('fill', this.attribute('fill').valueOrDefault('black'));

1695

tempSvg.attributes['stroke'] = new svg.Property('stroke', this.attribute('stroke').valueOrDefault('none'));

1696

tempSvg.children = this.children;

1697

tempSvg.render(ctx);

1698

1699

ctx.restore();

1700

				if (this.attribute('markerUnits').valueOrDefault('strokeWidth') == 'strokeWidth') ctx.scale(1/ctx.lineWidth, 1/ctx.lineWidth);

1701

if (this.attribute('orient').valueOrDefault('auto') == 'auto') ctx.rotate(-angle);

1702

ctx.translate(-point.x, -point.y);

1703

}

1704

}

1705

svg.Element.marker.prototype = new svg.Element.ElementBase;

1706

1707

// definitions element

1708

svg.Element.defs = function(node) {

1709

this.base = svg.Element.ElementBase;

1710

this.base(node);

1711

1712

this.render = function(ctx) {

// NOOP

}

}

svg.Element.defs.prototype = new svg.Element.ElementBase;

1717

1718

// base for gradients

1719

svg.Element.GradientBase = function(node) {

1720

this.base = svg.Element.ElementBase;

this.base(node);

this.stops = [];

for (var i=0; i<this.children.length; i++) {

1725

var child = this.children[i];

1726

if (child.type == 'stop') this.stops.push(child);

1727

}

1728

1729

this.getGradient = function() {

// OVERRIDE ME!

}

this.gradientUnits = function () {

1734

return this.attribute('gradientUnits').valueOrDefault('objectBoundingBox');

1735

}

1736

1737

this.attributesToInherit = ['gradientUnits'];

1738

1739

this.inheritStopContainer = function (stopsContainer) {

1740

for (var i=0; i<this.attributesToInherit.length; i++) {

1741

var attributeToInherit = this.attributesToInherit[i];

1742

if (!this.attribute(attributeToInherit).hasValue() && stopsContainer.attribute(attributeToInherit).hasValue()) {

1743

this.attribute(attributeToInherit, true).value = stopsContainer.attribute(attributeToInherit).value;

}

}

}

this.createGradient = function(ctx, element, parentOpacityProp) {

1749

var stopsContainer = this;

1750

if (this.getHrefAttribute().hasValue()) {

1751

stopsContainer = this.getHrefAttribute().getDefinition();

1752

this.inheritStopContainer(stopsContainer);

1753

}

1754

1755

var addParentOpacity = function (color) {

1756

if (parentOpacityProp.hasValue()) {

1757

var p = new svg.Property('color', color);

1758

return p.addOpacity(parentOpacityProp).value;

}

return color;

};

var g = this.getGradient(ctx, element);

1764

if (g == null) return addParentOpacity(stopsContainer.stops[stopsContainer.stops.length - 1].color);

1765

for (var i=0; i<stopsContainer.stops.length; i++) {

1766

g.addColorStop(stopsContainer.stops[i].offset, addParentOpacity(stopsContainer.stops[i].color));

1767

}

1768

1769

if (this.attribute('gradientTransform').hasValue()) {

1770

// render as transformed pattern on temporary canvas

1771

var rootView = svg.ViewPort.viewPorts[0];

1772

1773

var rect = new svg.Element.rect();

1774

rect.attributes['x'] = new svg.Property('x', -svg.MAX_VIRTUAL_PIXELS/3.0);

1775

rect.attributes['y'] = new svg.Property('y', -svg.MAX_VIRTUAL_PIXELS/3.0);

1776

rect.attributes['width'] = new svg.Property('width', svg.MAX_VIRTUAL_PIXELS);

1777

rect.attributes['height'] = new svg.Property('height', svg.MAX_VIRTUAL_PIXELS);

1778

1779

var group = new svg.Element.g();

1780

group.attributes['transform'] = new svg.Property('transform', this.attribute('gradientTransform').value);

1781

group.children = [ rect ];

1782

1783

var tempSvg = new svg.Element.svg();

1784

tempSvg.attributes['x'] = new svg.Property('x', 0);

1785

tempSvg.attributes['y'] = new svg.Property('y', 0);

1786

tempSvg.attributes['width'] = new svg.Property('width', rootView.width);

1787

tempSvg.attributes['height'] = new svg.Property('height', rootView.height);

1788

tempSvg.children = [ group ];

1789

1790

var c = document.createElement('canvas');

1791

c.width = rootView.width;

1792

c.height = rootView.height;

1793

var tempCtx = c.getContext('2d');

1794

tempCtx.fillStyle = g;

1795

tempSvg.render(tempCtx);

1796

return tempCtx.createPattern(c, 'no-repeat');

}

return g;

}

}

svg.Element.GradientBase.prototype = new svg.Element.ElementBase;

1803

1804

// linear gradient element

1805

svg.Element.linearGradient = function(node) {

1806

this.base = svg.Element.GradientBase;

1807

this.base(node);

1808

1809

this.attributesToInherit.push('x1');

1810

this.attributesToInherit.push('y1');

1811

this.attributesToInherit.push('x2');

1812

this.attributesToInherit.push('y2');

1813

1814

this.getGradient = function(ctx, element) {

1815

var bb = this.gradientUnits() == 'objectBoundingBox' ? element.getBoundingBox() : null;

1816

1817

if (!this.attribute('x1').hasValue()

1818

&& !this.attribute('y1').hasValue()

1819

&& !this.attribute('x2').hasValue()

1820

&& !this.attribute('y2').hasValue()) {

1821

this.attribute('x1', true).value = 0;

1822

this.attribute('y1', true).value = 0;

1823

this.attribute('x2', true).value = 1;

1824

this.attribute('y2', true).value = 0;

1825

}

1826

1827

var x1 = (this.gradientUnits() == 'objectBoundingBox'

1828

? bb.x() + bb.width() * this.attribute('x1').numValue()

1829

: this.attribute('x1').toPixels('x'));

1830

var y1 = (this.gradientUnits() == 'objectBoundingBox'

1831

? bb.y() + bb.height() * this.attribute('y1').numValue()

1832

: this.attribute('y1').toPixels('y'));

1833

var x2 = (this.gradientUnits() == 'objectBoundingBox'

1834

? bb.x() + bb.width() * this.attribute('x2').numValue()

1835

: this.attribute('x2').toPixels('x'));

1836

var y2 = (this.gradientUnits() == 'objectBoundingBox'

1837

? bb.y() + bb.height() * this.attribute('y2').numValue()

1838

: this.attribute('y2').toPixels('y'));

1839

1840

if (x1 == x2 && y1 == y2) return null;

1841

return ctx.createLinearGradient(x1, y1, x2, y2);

1842

}

1843

}

1844

svg.Element.linearGradient.prototype = new svg.Element.GradientBase;

1845

1846

// radial gradient element

1847

svg.Element.radialGradient = function(node) {

1848

this.base = svg.Element.GradientBase;

1849

this.base(node);

1850

1851

this.attributesToInherit.push('cx');

1852

this.attributesToInherit.push('cy');

1853

this.attributesToInherit.push('r');

1854

this.attributesToInherit.push('fx');

1855

this.attributesToInherit.push('fy');

1856

1857

this.getGradient = function(ctx, element) {

1858

var bb = element.getBoundingBox();

1859

1860

if (!this.attribute('cx').hasValue()) this.attribute('cx', true).value = '50%';

1861

if (!this.attribute('cy').hasValue()) this.attribute('cy', true).value = '50%';

1862

if (!this.attribute('r').hasValue()) this.attribute('r', true).value = '50%';

1863

1864

var cx = (this.gradientUnits() == 'objectBoundingBox'

1865

? bb.x() + bb.width() * this.attribute('cx').numValue()

1866

: this.attribute('cx').toPixels('x'));

1867

var cy = (this.gradientUnits() == 'objectBoundingBox'

1868

? bb.y() + bb.height() * this.attribute('cy').numValue()

1869

: this.attribute('cy').toPixels('y'));

var fx = cx;

var fy = cy;

if (this.attribute('fx').hasValue()) {

1874

fx = (this.gradientUnits() == 'objectBoundingBox'

1875

? bb.x() + bb.width() * this.attribute('fx').numValue()

1876

: this.attribute('fx').toPixels('x'));

1877

}

1878

if (this.attribute('fy').hasValue()) {

1879

fy = (this.gradientUnits() == 'objectBoundingBox'

1880

? bb.y() + bb.height() * this.attribute('fy').numValue()

1881

: this.attribute('fy').toPixels('y'));

1882

}

1883

1884

var r = (this.gradientUnits() == 'objectBoundingBox'

1885

? (bb.width() + bb.height()) / 2.0 * this.attribute('r').numValue()

1886

: this.attribute('r').toPixels());

1887

1888

return ctx.createRadialGradient(fx, fy, 0, cx, cy, r);

1889

}

1890

}

1891

svg.Element.radialGradient.prototype = new svg.Element.GradientBase;

1892

1893

// gradient stop element

1894

svg.Element.stop = function(node) {

1895

this.base = svg.Element.ElementBase;

1896

this.base(node);

1897

1898

this.offset = this.attribute('offset').numValue();

1899

if (this.offset < 0) this.offset = 0;

1900

if (this.offset > 1) this.offset = 1;

1901

1902

var stopColor = this.style('stop-color', true);

1903

if (stopColor.value === '') stopColor.value = '#000';

1904

if (this.style('stop-opacity').hasValue()) stopColor = stopColor.addOpacity(this.style('stop-opacity'));

1905

this.color = stopColor.value;

1906

}

1907

svg.Element.stop.prototype = new svg.Element.ElementBase;

1908

1909

// animation base element

1910

svg.Element.AnimateBase = function(node) {

1911

this.base = svg.Element.ElementBase;

1912

this.base(node);

1913

1914

svg.Animations.push(this);

1915

1916

this.duration = 0.0;

1917

this.begin = this.attribute('begin').toMilliseconds();

1918

this.maxDuration = this.begin + this.attribute('dur').toMilliseconds();

1919

1920

this.getProperty = function() {

1921

var attributeType = this.attribute('attributeType').value;

1922

var attributeName = this.attribute('attributeName').value;

1923

1924

if (attributeType == 'CSS') {

1925

return this.parent.style(attributeName, true);

1926

}

1927

return this.parent.attribute(attributeName, true);

1928

};

1929

1930

this.initialValue = null;

1931

this.initialUnits = '';

1932

this.removed = false;

1933

1934

this.calcValue = function() {

// OVERRIDE ME!

return '';

}

this.update = function(delta) {

1940

// set initial value

1941

if (this.initialValue == null) {

1942

this.initialValue = this.getProperty().value;

1943

this.initialUnits = this.getProperty().getUnits();

1944

}

1945

1946

// if we're past the end time

1947

if (this.duration > this.maxDuration) {

1948

// loop for indefinitely repeating animations

1949

if (this.attribute('repeatCount').value == 'indefinite'

1950

|| this.attribute('repeatDur').value == 'indefinite') {

1951

this.duration = 0.0

1952

}

1953

else if (this.attribute('fill').valueOrDefault('remove') == 'freeze' && !this.frozen) {

1954

this.frozen = true;

1955

this.parent.animationFrozen = true;

1956

this.parent.animationFrozenValue = this.getProperty().value;

1957

}

1958

else if (this.attribute('fill').valueOrDefault('remove') == 'remove' && !this.removed) {

1959

this.removed = true;

1960

this.getProperty().value = this.parent.animationFrozen ? this.parent.animationFrozenValue : this.initialValue;

return true;

}

return false;

}

this.duration = this.duration + delta;

1966

1967

// if we're past the begin time

1968

var updated = false;

1969

if (this.begin < this.duration) {

1970

var newValue = this.calcValue(); // tween

1971

1972

if (this.attribute('type').hasValue()) {

1973

// for transform, etc.

1974

var type = this.attribute('type').value;

1975

newValue = type + '(' + newValue + ')';

1976

}

1977

1978

this.getProperty().value = newValue;

updated = true;

}

return updated;

}

this.from = this.attribute('from');

1986

this.to = this.attribute('to');

1987

this.values = this.attribute('values');

1988

if (this.values.hasValue()) this.values.value = this.values.value.split(';');

1989

1990

// fraction of duration we've covered

1991

this.progress = function() {

1992

var ret = { progress: (this.duration - this.begin) / (this.maxDuration - this.begin) };

1993

if (this.values.hasValue()) {

1994

var p = ret.progress * (this.values.value.length - 1);

1995

var lb = Math.floor(p), ub = Math.ceil(p);

1996

ret.from = new svg.Property('from', parseFloat(this.values.value[lb]));

1997

ret.to = new svg.Property('to', parseFloat(this.values.value[ub]));

1998

ret.progress = (p - lb) / (ub - lb);

1999

}

2000

else {

2001

ret.from = this.from;

ret.to = this.to;

}

return ret;

}

}

svg.Element.AnimateBase.prototype = new svg.Element.ElementBase;

2008

2009

// animate element

2010

svg.Element.animate = function(node) {

2011

this.base = svg.Element.AnimateBase;

2012

this.base(node);

2013

2014

this.calcValue = function() {

2015

var p = this.progress();

2016

2017

// tween value linearly

2018

var newValue = p.from.numValue() + (p.to.numValue() - p.from.numValue()) * p.progress;

2019

return newValue + this.initialUnits;

2020

};

2021

}

2022

svg.Element.animate.prototype = new svg.Element.AnimateBase;

2023

2024

// animate color element

2025

svg.Element.animateColor = function(node) {

2026

this.base = svg.Element.AnimateBase;

2027

this.base(node);

2028

2029

this.calcValue = function() {

2030

var p = this.progress();

2031

var from = new RGBColor(p.from.value);

2032

var to = new RGBColor(p.to.value);

2033

2034

if (from.ok && to.ok) {

2035

// tween color linearly

2036

var r = from.r + (to.r - from.r) * p.progress;

2037

var g = from.g + (to.g - from.g) * p.progress;

2038

var b = from.b + (to.b - from.b) * p.progress;

2039

return 'rgb('+parseInt(r,10)+','+parseInt(g,10)+','+parseInt(b,10)+')';

2040

}

2041

return this.attribute('from').value;

2042

};

2043

}

2044

svg.Element.animateColor.prototype = new svg.Element.AnimateBase;

2045

2046

// animate transform element

2047

svg.Element.animateTransform = function(node) {

2048

this.base = svg.Element.AnimateBase;

2049

this.base(node);

2050

2051

this.calcValue = function() {

2052

var p = this.progress();

2053

2054

// tween value linearly

2055

var from = svg.ToNumberArray(p.from.value);

2056

var to = svg.ToNumberArray(p.to.value);

2057

var newValue = '';

2058

for (var i=0; i<from.length; i++) {

2059

newValue += from[i] + (to[i] - from[i]) * p.progress + ' ';

}

return newValue;

};

}

svg.Element.animateTransform.prototype = new svg.Element.animate;

2065

2066

// font element

2067

svg.Element.font = function(node) {

2068

this.base = svg.Element.ElementBase;

2069

this.base(node);

2070

2071

this.horizAdvX = this.attribute('horiz-adv-x').numValue();

2072

2073

this.isRTL = false;

2074

this.isArabic = false;

2075

this.fontFace = null;

2076

this.missingGlyph = null;

2077

this.glyphs = [];

2078

for (var i=0; i<this.children.length; i++) {

2079

var child = this.children[i];

2080

if (child.type == 'font-face') {

2081

this.fontFace = child;

2082

if (child.style('font-family').hasValue()) {

2083

svg.Definitions[child.style('font-family').value] = this;

2084

}

2085

}

2086

else if (child.type == 'missing-glyph') this.missingGlyph = child;

2087

else if (child.type == 'glyph') {

2088

if (child.arabicForm != '') {

2089

this.isRTL = true;

2090

this.isArabic = true;

2091

if (typeof(this.glyphs[child.unicode]) == 'undefined') this.glyphs[child.unicode] = [];

2092

this.glyphs[child.unicode][child.arabicForm] = child;

2093

}

2094

else {

2095

this.glyphs[child.unicode] = child;

}

}

}

}

svg.Element.font.prototype = new svg.Element.ElementBase;

2101

2102

// font-face element

2103

svg.Element.fontface = function(node) {

2104

this.base = svg.Element.ElementBase;

2105

this.base(node);

2106

2107

this.ascent = this.attribute('ascent').value;

2108

this.descent = this.attribute('descent').value;

2109

this.unitsPerEm = this.attribute('units-per-em').numValue();

2110

}

2111

svg.Element.fontface.prototype = new svg.Element.ElementBase;

2112

2113

// missing-glyph element

2114

svg.Element.missingglyph = function(node) {

2115

this.base = svg.Element.path;

2116

this.base(node);

2117

2118

this.horizAdvX = 0;

2119

}

2120

svg.Element.missingglyph.prototype = new svg.Element.path;

2121

2122

// glyph element

2123

svg.Element.glyph = function(node) {

2124

this.base = svg.Element.path;

2125

this.base(node);

2126

2127

this.horizAdvX = this.attribute('horiz-adv-x').numValue();

2128

this.unicode = this.attribute('unicode').value;

2129

this.arabicForm = this.attribute('arabic-form').value;

2130

}

2131

svg.Element.glyph.prototype = new svg.Element.path;

2132

2133

// text element

2134

svg.Element.text = function(node) {

2135

this.captureTextNodes = true;

2136

this.base = svg.Element.RenderedElementBase;

2137

this.base(node);

2138

2139

this.baseSetContext = this.setContext;

2140

this.setContext = function(ctx) {

2141

this.baseSetContext(ctx);

2142

2143

var textBaseline = this.style('dominant-baseline').toTextBaseline();

2144

if (textBaseline == null) textBaseline = this.style('alignment-baseline').toTextBaseline();

2145

if (textBaseline != null) ctx.textBaseline = textBaseline;

2146

}

2147

2148

this.getBoundingBox = function () {

2149

var x = this.attribute('x').toPixels('x');

2150

var y = this.attribute('y').toPixels('y');

2151

var fontSize = this.parent.style('font-size').numValueOrDefault(svg.Font.Parse(svg.ctx.font).fontSize);

2152

				return new svg.BoundingBox(x, y - fontSize, x + Math.floor(fontSize * 2.0 / 3.0) * this.children[0].getText().length, y);

2153

}

2154

2155

this.renderChildren = function(ctx) {

2156

this.x = this.attribute('x').toPixels('x');

2157

this.y = this.attribute('y').toPixels('y');

2158

if (this.attribute('dx').hasValue()) this.x += this.attribute('dx').toPixels('x');

2159

if (this.attribute('dy').hasValue()) this.y += this.attribute('dy').toPixels('y');

2160

this.x += this.getAnchorDelta(ctx, this, 0);

2161

for (var i=0; i<this.children.length; i++) {

2162

this.renderChild(ctx, this, i);

}

}

this.getAnchorDelta = function (ctx, parent, startI) {

2167

var textAnchor = this.style('text-anchor').valueOrDefault('start');

2168

if (textAnchor != 'start') {

2169

var width = 0;

2170

for (var i=startI; i<parent.children.length; i++) {

2171

var child = parent.children[i];

2172

if (i > startI && child.attribute('x').hasValue()) break; // new group

2173

width += child.measureTextRecursive(ctx);

2174

}

2175

return -1 * (textAnchor == 'end' ? width : width / 2.0);

}

return 0;

}

this.renderChild = function(ctx, parent, i) {

2181

var child = parent.children[i];

2182

if (child.attribute('x').hasValue()) {

2183

child.x = child.attribute('x').toPixels('x') + parent.getAnchorDelta(ctx, parent, i);

2184

if (child.attribute('dx').hasValue()) child.x += child.attribute('dx').toPixels('x');

2185

}

2186

else {

2187

if (child.attribute('dx').hasValue()) parent.x += child.attribute('dx').toPixels('x');

2188

child.x = parent.x;

2189

}

2190

parent.x = child.x + child.measureText(ctx);

2191

2192

if (child.attribute('y').hasValue()) {

2193

child.y = child.attribute('y').toPixels('y');

2194

if (child.attribute('dy').hasValue()) child.y += child.attribute('dy').toPixels('y');

2195

}

2196

else {

2197

if (child.attribute('dy').hasValue()) parent.y += child.attribute('dy').toPixels('y');

2198

child.y = parent.y;

2199

}

2200

parent.y = child.y;

child.render(ctx);

for (var i=0; i<child.children.length; i++) {

2205

parent.renderChild(ctx, child, i);

}

}

}

svg.Element.text.prototype = new svg.Element.RenderedElementBase;

2210

2211

// text base

2212

svg.Element.TextElementBase = function(node) {

2213

this.base = svg.Element.RenderedElementBase;

2214

this.base(node);

2215

2216

this.getGlyph = function(font, text, i) {

2217

var c = text[i];

2218

var glyph = null;

2219

if (font.isArabic) {

2220

var arabicForm = 'isolated';

2221

if ((i==0 || text[i-1]==' ') && i<text.length-2 && text[i+1]!=' ') arabicForm = 'terminal';

2222

if (i>0 && text[i-1]!=' ' && i<text.length-2 && text[i+1]!=' ') arabicForm = 'medial';

2223

if (i>0 && text[i-1]!=' ' && (i == text.length-1 || text[i+1]==' ')) arabicForm = 'initial';

2224

if (typeof(font.glyphs[c]) != 'undefined') {

2225

glyph = font.glyphs[c][arabicForm];

2226

if (glyph == null && font.glyphs[c].type == 'glyph') glyph = font.glyphs[c];

}

}

else {

glyph = font.glyphs[c];

2231

}

2232

if (glyph == null) glyph = font.missingGlyph;

return glyph;

}

this.renderChildren = function(ctx) {

2237

var customFont = this.parent.style('font-family').getDefinition();

2238

if (customFont != null) {

2239

var fontSize = this.parent.style('font-size').numValueOrDefault(svg.Font.Parse(svg.ctx.font).fontSize);

2240

var fontStyle = this.parent.style('font-style').valueOrDefault(svg.Font.Parse(svg.ctx.font).fontStyle);

2241

var text = this.getText();

2242

if (customFont.isRTL) text = text.split("").reverse().join("");

2243

2244

var dx = svg.ToNumberArray(this.parent.attribute('dx').value);

2245

for (var i=0; i<text.length; i++) {

2246

var glyph = this.getGlyph(customFont, text, i);

2247

var scale = fontSize / customFont.fontFace.unitsPerEm;

2248

ctx.translate(this.x, this.y);

2249

ctx.scale(scale, -scale);

2250

var lw = ctx.lineWidth;

2251

ctx.lineWidth = ctx.lineWidth * customFont.fontFace.unitsPerEm / fontSize;

2252

if (fontStyle == 'italic') ctx.transform(1, 0, .4, 1, 0, 0);

2253

glyph.render(ctx);

2254

if (fontStyle == 'italic') ctx.transform(1, 0, -.4, 1, 0, 0);

2255

ctx.lineWidth = lw;

2256

ctx.scale(1/scale, -1/scale);

2257

ctx.translate(-this.x, -this.y);

2258

2259

this.x += fontSize * (glyph.horizAdvX || customFont.horizAdvX) / customFont.fontFace.unitsPerEm;

2260

if (typeof(dx[i]) != 'undefined' && !isNaN(dx[i])) {

this.x += dx[i];

}

}

return;

}

if (ctx.fillStyle != '') ctx.fillText(svg.compressSpaces(this.getText()), this.x, this.y);

2268

if (ctx.strokeStyle != '') ctx.strokeText(svg.compressSpaces(this.getText()), this.x, this.y);

2269

}

2270

2271

this.getText = function() {

// OVERRIDE ME

}

this.measureTextRecursive = function(ctx) {

2276

var width = this.measureText(ctx);

2277

for (var i=0; i<this.children.length; i++) {

2278

width += this.children[i].measureTextRecursive(ctx);

}

return width;

}

this.measureText = function(ctx) {

2284

var customFont = this.parent.style('font-family').getDefinition();

2285

if (customFont != null) {

2286

var fontSize = this.parent.style('font-size').numValueOrDefault(svg.Font.Parse(svg.ctx.font).fontSize);

2287

var measure = 0;

2288

var text = this.getText();

2289

if (customFont.isRTL) text = text.split("").reverse().join("");

2290

var dx = svg.ToNumberArray(this.parent.attribute('dx').value);

2291

for (var i=0; i<text.length; i++) {

2292

var glyph = this.getGlyph(customFont, text, i);

2293

measure += (glyph.horizAdvX || customFont.horizAdvX) * fontSize / customFont.fontFace.unitsPerEm;

2294

if (typeof(dx[i]) != 'undefined' && !isNaN(dx[i])) {

measure += dx[i];

}

}

return measure;

}

var textToMeasure = svg.compressSpaces(this.getText());

2302

if (!ctx.measureText) return textToMeasure.length * 10;

2303

2304

ctx.save();

2305

this.setContext(ctx);

2306

var width = ctx.measureText(textToMeasure).width;

ctx.restore();

return width;

}

}

svg.Element.TextElementBase.prototype = new svg.Element.RenderedElementBase;

2312

2313

// tspan

2314

svg.Element.tspan = function(node) {

2315

this.captureTextNodes = true;

2316

this.base = svg.Element.TextElementBase;

2317

this.base(node);

2318

2319

this.text = svg.compressSpaces(node.value || node.text || node.textContent || '');

2320

this.getText = function() {

2321

// if this node has children, then they own the text

2322

if (this.children.length > 0) { return ''; }

return this.text;

}

}

svg.Element.tspan.prototype = new svg.Element.TextElementBase;

2327

2328

// tref

2329

svg.Element.tref = function(node) {

2330

this.base = svg.Element.TextElementBase;

2331

this.base(node);

2332

2333

this.getText = function() {

2334

var element = this.getHrefAttribute().getDefinition();

2335

if (element != null) return element.children[0].getText();

2336

}

2337

}

2338

svg.Element.tref.prototype = new svg.Element.TextElementBase;

2339

2340

// a element

2341

svg.Element.a = function(node) {

2342

this.base = svg.Element.TextElementBase;

2343

this.base(node);

2344

2345

this.hasText = node.childNodes.length > 0;

2346

for (var i=0; i<node.childNodes.length; i++) {

2347

if (node.childNodes[i].nodeType != 3) this.hasText = false;

2348

}

2349

2350

// this might contain text

2351

this.text = this.hasText ? node.childNodes[0].value : '';

2352

this.getText = function() {

return this.text;

}

this.baseRenderChildren = this.renderChildren;

2357

this.renderChildren = function(ctx) {

2358

if (this.hasText) {

2359

// render as text element

2360

this.baseRenderChildren(ctx);

2361

var fontSize = new svg.Property('fontSize', svg.Font.Parse(svg.ctx.font).fontSize);

2362

					svg.Mouse.checkBoundingBox(this, new svg.BoundingBox(this.x, this.y - fontSize.toPixels('y'), this.x + this.measureText(ctx), this.y));

2363

}

2364

else if (this.children.length > 0) {

2365

// render as temporary group

2366

var g = new svg.Element.g();

2367

g.children = this.children;

g.parent = this;

g.render(ctx);

}

}

this.onclick = function() {

2374

window.open(this.getHrefAttribute().value);

2375

}

2376

2377

this.onmousemove = function() {

2378

svg.ctx.canvas.style.cursor = 'pointer';

2379

}

2380

}

2381

svg.Element.a.prototype = new svg.Element.TextElementBase;

2382

2383

// image element

2384

svg.Element.image = function(node) {

2385

this.base = svg.Element.RenderedElementBase;

2386

this.base(node);

2387

2388

var href = this.getHrefAttribute().value;

2389

if (href == '') { return; }

2390

var isSvg = href.match(/\.svg$/)

2391

2392

svg.Images.push(this);

2393

this.loaded = false;

2394

if (!isSvg) {

2395

this.img = document.createElement('img');

2396

if (svg.opts['useCORS'] == true) { this.img.crossOrigin = 'Anonymous'; }

2397

var self = this;

2398

this.img.onload = function() { self.loaded = true; }

2399

this.img.onerror = function() { svg.log('ERROR: image "' + href + '" not found'); self.loaded = true; }

2400

this.img.src = href;

2401

}

2402

else {

2403

this.img = svg.ajax(href);

2404

this.loaded = true;

2405

}

2406

2407

this.renderChildren = function(ctx) {

2408

var x = this.attribute('x').toPixels('x');

2409

var y = this.attribute('y').toPixels('y');

2410

2411

var width = this.attribute('width').toPixels('x');

2412

var height = this.attribute('height').toPixels('y');

2413

if (width == 0 || height == 0) return;

ctx.save();

if (isSvg) {

ctx.drawSvg(this.img, x, y, width, height);

2418

}

2419

else {

2420

ctx.translate(x, y);

2421

svg.AspectRatio(ctx,

2422

this.attribute('preserveAspectRatio').value,

width,

this.img.width,

height,

this.img.height,

0,

0);

ctx.drawImage(this.img, 0, 0);

}

ctx.restore();

}

this.getBoundingBox = function() {

2435

var x = this.attribute('x').toPixels('x');

2436

var y = this.attribute('y').toPixels('y');

2437

var width = this.attribute('width').toPixels('x');

2438

var height = this.attribute('height').toPixels('y');

2439

return new svg.BoundingBox(x, y, x + width, y + height);

2440

}

2441

}

2442

svg.Element.image.prototype = new svg.Element.RenderedElementBase;

2443

2444

// group element

2445

svg.Element.g = function(node) {

2446

this.base = svg.Element.RenderedElementBase;

2447

this.base(node);

2448

2449

this.getBoundingBox = function() {

2450

var bb = new svg.BoundingBox();

2451

for (var i=0; i<this.children.length; i++) {

2452

bb.addBoundingBox(this.children[i].getBoundingBox());

}

return bb;

};

}

svg.Element.g.prototype = new svg.Element.RenderedElementBase;

2458

2459

// symbol element

2460

svg.Element.symbol = function(node) {

2461

this.base = svg.Element.RenderedElementBase;

2462

this.base(node);

2463

2464

this.render = function(ctx) {

// NO RENDER

};

}

svg.Element.symbol.prototype = new svg.Element.RenderedElementBase;

2469

2470

// style element

2471

svg.Element.style = function(node) {

2472

this.base = svg.Element.ElementBase;

2473

this.base(node);

2474

2475

// text, or spaces then CDATA

2476

var css = ''

2477

for (var i=0; i<node.childNodes.length; i++) {

2478

css += node.childNodes[i].data;

2479

}

2480

css = css.replace(/(\/\*([^*]|[\r\n]|(\*+([^*\/]|[\r\n])))*\*+\/)|(^[\s]*\/\/.*)/gm, ''); // remove comments

2481

css = svg.compressSpaces(css); // replace whitespace

2482

var cssDefs = css.split('}');

2483

for (var i=0; i<cssDefs.length; i++) {

2484

if (svg.trim(cssDefs[i]) != '') {

2485

var cssDef = cssDefs[i].split('{');

2486

var cssClasses = cssDef[0].split(',');

2487

var cssProps = cssDef[1].split(';');

2488

for (var j=0; j<cssClasses.length; j++) {

2489

var cssClass = svg.trim(cssClasses[j]);

2490

if (cssClass != '') {

2491

var props = svg.Styles[cssClass] || {};

2492

for (var k=0; k<cssProps.length; k++) {

2493

var prop = cssProps[k].indexOf(':');

2494

var name = cssProps[k].substr(0, prop);

2495

var value = cssProps[k].substr(prop + 1, cssProps[k].length - prop);

2496

if (name != null && value != null) {

2497

props[svg.trim(name)] = new svg.Property(svg.trim(name), svg.trim(value));

2498

}

2499

}

2500

svg.Styles[cssClass] = props;

2501

svg.StylesSpecificity[cssClass] = getSelectorSpecificity(cssClass);

2502

if (cssClass == '@font-face') {

2503

var fontFamily = props['font-family'].value.replace(/"/g,'');

2504

var srcs = props['src'].value.split(',');

for (var s=0; s

0) {

/ use element

svg.Element.use = function(node) {

2528

this.base = svg.Element.RenderedElementBase;

2529

this.base(node);

2530

2531

this.baseSetContext = this.setContext;

2532

this.setContext = function(ctx) {

2533

this.baseSetContext(ctx);

2534

if (this.attribute('x').hasValue()) ctx.translate(this.attribute('x').toPixels('x'), 0);

2535

if (this.attribute('y').hasValue()) ctx.translate(0, this.attribute('y').toPixels('y'));

2536

}

2537

2538

var element = this.getHrefAttribute().getDefinition();

2539

2540

this.path = function(ctx) {

2541

if (element != null) element.path(ctx);

2542

}

2543

2544

this.getBoundingBox = function() {

2545

if (element != null) return element.getBoundingBox();

2546

}

2547

2548

this.renderChildren = function(ctx) {

2549

if (element != null) {

2550

var tempSvg = element;

2551

if (element.type == 'symbol') {

2552

// render me using a temporary svg element in symbol cases (http://www.w3.org/TR/SVG/struct.html#UseElement)

2553

new svg.Element.svg();

2554

'svg';

2555

'viewBox'] = new svg.Property('viewBox', element.attribute('viewBox').value);

2556

'preserveAspectRatio'] = new svg.Property('preserveAspectRatio', element.attribute('preserveAspectRatio').value);

2557

'overflow'] = new svg.Property('overflow', element.attribute('overflow').value);

2558

2559

2560

if (tempSvg.type == 'svg') {

2561

// if symbol or svg, inherit width/height from me

2562

						if (this.attribute('width').hasValue()) tempSvg.attributes['width'] = new svg.Property('width', this.attribute('width').value);

2563

if (this.attribute('height').hasValue()) tempSvg.attributes['height'] = new svg.Property('height', this.attribute('height').value);

2564

2565

var oldParent = tempSvg.parent;

null;

new svg.Element.RenderedElementBase;

2573

2574

// mask element

2575

svg.Element.mask = function(node) {

2576

this.base = svg.Element.ElementBase;

2577

this.base(node);

2578

2579

this.apply = function(ctx, element) {

2580

// render as temp svg

2581

var x = this.attribute('x').toPixels('x');

2582

var y = this.attribute('y').toPixels('y');

2583

var width = this.attribute('width').toPixels('x');

2584

var height = this.attribute('height').toPixels('y');

2585

2586

if (width == 0 && height == 0) {

2587

var bb = new svg.BoundingBox();

2588

for (var i=0; i<this.children.length; i++) {

2589

this.children[i].getBoundingBox());

2590

2591

var x = Math.floor(bb.x1);

2592

var y = Math.floor(bb.y1);

2593

var width = Math.floor(bb.width());

2594

var height = Math.floor(bb.height());

2595

2596

2597

// temporarily remove mask to avoid recursion

2598

var mask = element.attribute('mask').value;

2599

'mask').value = '';

2600

2601

var cMask = document.createElement('canvas');

2602

2603

2604

var maskCtx = cMask.getContext('2d');

2605

this.renderChildren(maskCtx);

2606

2607

var c = document.createElement('canvas');

2608

2609

2610

var tempCtx = c.getContext('2d');

'destination-in';

'no-repeat');

'no-repeat');

// reassign mask

element.attribute('mask').value = mask;

2621

2622

2623

this.render = function(ctx) {

// NO RENDER

}

new svg.Element.ElementBase;

2628

2629

// clip element

2630

svg.Element.clipPath = function(node) {

2631

this.base = svg.Element.ElementBase;

2632

this.base(node);

2633

2634

this.apply = function(ctx) {

2635

var oldBeginPath = CanvasRenderingContext2D.prototype.beginPath;

2636

function () { };

2637

2638

var oldClosePath = CanvasRenderingContext2D.prototype.closePath;

function () { };

for (var i=0; i<this.children.length; i++) {

2643

var child = this.children[i];

2644

if (typeof(child.path) != 'undefined') {

2645

var transform = null;

2646

if (child.style('transform', false, true).hasValue()) {

2647

new svg.Transform(child.style('transform', false, true).value);

if (transform) { transform.unapply(ctx); }

this.render = function(ctx) {

// NO RENDER

}

new svg.Element.ElementBase;

2667

2668

// filters

2669

svg.Element.filter = function(node) {

2670

this.base = svg.Element.ElementBase;

2671

this.base(node);

2672

2673

this.apply = function(ctx, element) {

2674

// render as temp svg

2675

var bb = element.getBoundingBox();

2676

var x = Math.floor(bb.x1);

2677

var y = Math.floor(bb.y1);

2678

var width = Math.floor(bb.width());

2679

var height = Math.floor(bb.height());

2680

2681

// temporarily remove filter to avoid recursion

2682

var filter = element.style('filter').value;

2683

'filter').value = '';

2684

2685

var px = 0, py = 0;

2686

for (var i=0; i<this.children.length; i++) {

2687

var efd = this.children[i].extraFilterDistance || 0;

Math.max(px, efd);

Math.max(py, efd);

var c = document.createElement('canvas');

2693

2694

2695

var tempCtx = c.getContext('2d');

// apply filters

for (var i=0; i<this.children.length; i++) {

2701

if (typeof(this.children[i].apply) === 'function') {

2702

this.children[i].apply(tempCtx, 0, 0, width + 2*px, height + 2*py);

// render on me

ctx.drawImage(c, 0, 0, width + 2*px, height + 2*py, x - px, y - py, width + 2*px, height + 2*py);

2708

2709

// reassign filter

2710

element.style('filter', true).value = filter;

2711

2712

2713

this.render = function(ctx) {

// NO RENDER

}

new svg.Element.ElementBase;

2718

2719

function(node) {

2720

this.base = svg.Element.ElementBase;

2721

this.base(node);

2722

2723

this.apply = function(ctx, x, y, width, height) {

// TODO: implement

}

new svg.Element.ElementBase;

2728

2729

function(node) {

2730

this.base = svg.Element.ElementBase;

2731

this.base(node);

2732

2733

this.apply = function(ctx, x, y, width, height) {

// TODO: implement

}

new svg.Element.ElementBase;

2738

2739

function(node) {

2740

this.base = svg.Element.ElementBase;

2741

this.base(node);

2742

2743

var matrix = svg.ToNumberArray(this.attribute('values').value);

2744

switch (this.attribute('type').valueOrDefault('matrix')) { // http://www.w3.org/TR/SVG/filters.html#feColorMatrixElement

case 'saturate':

var s = matrix[0];

break;

case 'hueRotate':

var a = matrix[0] * Math.PI / 180.0;

2755

var c = function (m1,m2,m3) { return m1 + Math.cos(a)*m2 + Math.sin(a)*m3; };

2756

matrix = [c(0.213,0.787,-0.213),c(0.715,-0.715,-0.715),c(0.072,-0.072,0.928),0,0,

2757

c(0.213,-0.213,0.143),c(0.715,0.285,0.140),c(0.072,-0.072,-0.283),0,0,

2758

c(0.213,-0.213,-0.787),c(0.715,-0.715,0.715),c(0.072,0.928,0.072),0,0,

0,0,0,1,0,

0,0,0,0,1];

break;

case 'luminanceToAlpha':

2763

matrix = [0,0,0,0,0,

2764

0,0,0,0,0,

2765

0,0,0,0,0,

2766

0.2125,0.7154,0.0721,0,0,

0,0,0,0,1];

break;

}

function imGet(img, x, y, width, height, rgba) {

2772

return img[y*width*4 + x*4 + rgba];

2773

}

2774

2775

function imSet(img, x, y, width, height, rgba, val) {

2776

img[y*width*4 + x*4 + rgba] = val;

}

function m(i, v) {

var mi = matrix[i];

2781

return mi * (mi < 0 ? v - 255 : v);

2782

< 0 ? v - 255 : v); }

2783

2784

< 0 ? v - 255 : v); this.apply = function(ctx, x, y, width, height) {

2785

< 0 ? v - 255 : v); // assuming x==0 && y==0 for now

2786

var srcData = ctx.getImageData(0, 0, width, height);

2787

for (var y = 0; y < height; y++) {

2788

< height; y++) { for (var x = 0; x < width; x++) {

2789

< height; y++) {< width; x++) { var r = imGet(srcData.data, x, y, width, height, 0);

2790

< height; y++) {< width; x++) { var g = imGet(srcData.data, x, y, width, height, 1);

2791

< height; y++) {< width; x++) { var b = imGet(srcData.data, x, y, width, height, 2);

2792

< height; y++) {< width; x++) { var a = imGet(srcData.data, x, y, width, height, 3);

2793

< height; y++) {< width; x++) { imSet(srcData.data, x, y, width, height, 0, m(0,r)+m(1,g)+m(2,b)+m(3,a)+m(4,1));

2794

< height; y++) {< width; x++) { imSet(srcData.data, x, y, width, height, 1, m(5,r)+m(6,g)+m(7,b)+m(8,a)+m(9,1));

2795

< height; y++) {< width; x++) {						imSet(srcData.data, x, y, width, height, 2, m(10,r)+m(11,g)+m(12,b)+m(13,a)+m(14,1));

2796

< height; y++) {< width; x++) {						imSet(srcData.data, x, y, width, height, 3, m(15,r)+m(16,g)+m(17,b)+m(18,a)+m(19,1));

2797

< height; y++) {< width; x++) { }

2798

< height; y++) {< width; x++) { }

2799

< height; y++) {< width; x++) { ctx.clearRect(0, 0, width, height);

2800

< height; y++) {< width; x++) { ctx.putImageData(srcData, 0, 0);

2801

< height; y++) {< width; x++) { }

2802

< height; y++) {< width; x++) { }

2803

< height; y++) {< width; x++) { svg.Element.feColorMatrix.prototype = new svg.Element.ElementBase;

2804

2805

< height; y++) {< width; x++) { svg.Element.feGaussianBlur = function(node) {

2806

< height; y++) {< width; x++) { this.base = svg.Element.ElementBase;

2807

< height; y++) {< width; x++) { this.base(node);

2808

2809

< height; y++) {< width; x++) { this.blurRadius = Math.floor(this.attribute('stdDeviation').numValue());

2810

< height; y++) {< width; x++) { this.extraFilterDistance = this.blurRadius;

2811

2812

< height; y++) {< width; x++) { this.apply = function(ctx, x, y, width, height) {

2813

< height; y++) {< width; x++) { if (typeof(stackBlur.canvasRGBA) == 'undefined') {

2814

< height; y++) {< width; x++) { svg.log('ERROR: StackBlur.js must be included for blur to work');

2815

< height; y++) {< width; x++) { return;

2816

< height; y++) {< width; x++) { }

2817

2818

< height; y++) {< width; x++) { // StackBlur requires canvas be on document

2819

ctx.canvas.id = svg.UniqueId();

2820

ctx.canvas.style.display = 'none';

2821

document.body.appendChild(ctx.canvas);

2822

stackBlur.canvasRGBA(ctx.canvas.id, x, y, width, height, this.blurRadius);

2823

document.body.removeChild(ctx.canvas);

2824

}

2825

}

2826

svg.Element.feGaussianBlur.prototype = new svg.Element.ElementBase;

2827

2828

// title element, do nothing

2829

svg.Element.title = function(node) {

2830

}

2831

svg.Element.title.prototype = new svg.Element.ElementBase;

2832

2833

// desc element, do nothing

2834

svg.Element.desc = function(node) {

2835

}

2836

svg.Element.desc.prototype = new svg.Element.ElementBase;

2837

2838

svg.Element.MISSING = function(node) {

2839

svg.log('ERROR: Element \'' + node.nodeName + '\' not yet implemented.');

2840

}

2841

svg.Element.MISSING.prototype = new svg.Element.ElementBase;

2842

2843

// element factory

2844

svg.CreateElement = function(node) {

2845

var className = node.nodeName.replace(/^[^:]+:/,''); // remove namespace

2846

className = className.replace(/\-/g,''); // remove dashes

2847

var e = null;

2848

if (typeof(svg.Element[className]) != 'undefined') {

2849

e = new svg.Element[className](node);

2850

}

2851

else {

2852

e = new svg.Element.MISSING(node);

2853

}

2854

2855

e.type = node.nodeName;

return e;

}

// load from url

svg.load = function(ctx, url) {

2861

svg.loadXml(ctx, svg.ajax(url));

}

// load from xml

svg.loadXml = function(ctx, xml) {

2866

svg.loadXmlDoc(ctx, svg.parseXml(xml));

2867

}

2868

2869

svg.loadXmlDoc = function(ctx, dom) {

2870

svg.init(ctx);

2871

2872

var mapXY = function(p) {

2873

var e = ctx.canvas;

2874

while (e) {

2875

p.x -= e.offsetLeft;

2876

p.y -= e.offsetTop;

2877

e = e.offsetParent;

2878

}

2879

if (window.scrollX) p.x += window.scrollX;

2880

if (window.scrollY) p.y += window.scrollY;

return p;

}

// bind mouse

if (svg.opts['ignoreMouse'] != true) {

2886

ctx.canvas.onclick = function(e) {

2887

var p = mapXY(new svg.Point(e != null ? e.clientX : event.clientX, e != null ? e.clientY : event.clientY));

2888

svg.Mouse.onclick(p.x, p.y);

2889

};

2890

ctx.canvas.onmousemove = function(e) {

2891

var p = mapXY(new svg.Point(e != null ? e.clientX : event.clientX, e != null ? e.clientY : event.clientY));

2892

svg.Mouse.onmousemove(p.x, p.y);

};

}

var e = svg.CreateElement(dom.documentElement);

2897

e.root = true;

2898

e.addStylesFromStyleDefinition();

2899

2900

// render loop

2901

var isFirstRender = true;

2902

var draw = function() {

2903

svg.ViewPort.Clear();

2904

				if (ctx.canvas.parentNode) svg.ViewPort.SetCurrent(ctx.canvas.parentNode.clientWidth, ctx.canvas.parentNode.clientHeight);

2905

2906

if (svg.opts['ignoreDimensions'] != true) {

2907

// set canvas size

2908

if (e.style('width').hasValue()) {

2909

ctx.canvas.width = e.style('width').toPixels('x');

2910

ctx.canvas.style.width = ctx.canvas.width + 'px';

2911

}

2912

if (e.style('height').hasValue()) {

2913

ctx.canvas.height = e.style('height').toPixels('y');

2914

ctx.canvas.style.height = ctx.canvas.height + 'px';

2915

}

2916

}

2917

var cWidth = ctx.canvas.clientWidth || ctx.canvas.width;

2918

var cHeight = ctx.canvas.clientHeight || ctx.canvas.height;

2919

if (svg.opts['ignoreDimensions'] == true && e.style('width').hasValue() && e.style('height').hasValue()) {

2920

cWidth = e.style('width').toPixels('x');

2921

cHeight = e.style('height').toPixels('y');

2922

}

2923

svg.ViewPort.SetCurrent(cWidth, cHeight);

2924

2925

if (svg.opts['offsetX'] != null) e.attribute('x', true).value = svg.opts['offsetX'];

2926

if (svg.opts['offsetY'] != null) e.attribute('y', true).value = svg.opts['offsetY'];

2927

if (svg.opts['scaleWidth'] != null || svg.opts['scaleHeight'] != null) {

2928

var xRatio = null, yRatio = null, viewBox = svg.ToNumberArray(e.attribute('viewBox').value);

2929

2930

if (svg.opts['scaleWidth'] != null) {

2931

if (e.attribute('width').hasValue()) xRatio = e.attribute('width').toPixels('x') / svg.opts['scaleWidth'];

2932

else if (!isNaN(viewBox[2])) xRatio = viewBox[2] / svg.opts['scaleWidth'];

2933

}

2934

2935

if (svg.opts['scaleHeight'] != null) {

2936

if (e.attribute('height').hasValue()) yRatio = e.attribute('height').toPixels('y') / svg.opts['scaleHeight'];

2937

else if (!isNaN(viewBox[3])) yRatio = viewBox[3] / svg.opts['scaleHeight'];

2938

}

2939

2940

if (xRatio == null) { xRatio = yRatio; }

2941

if (yRatio == null) { yRatio = xRatio; }

2942

2943

e.attribute('width', true).value = svg.opts['scaleWidth'];

2944

e.attribute('height', true).value = svg.opts['scaleHeight'];

2945

e.style('transform', true, true).value += ' scale('+(1.0/xRatio)+','+(1.0/yRatio)+')';

2946

}

2947

2948

// clear and render

2949

if (svg.opts['ignoreClear'] != true) {

2950

ctx.clearRect(0, 0, cWidth, cHeight);

2951

}

2952

e.render(ctx);

2953

if (isFirstRender) {

2954

isFirstRender = false;

2955

if (typeof(svg.opts['renderCallback']) == 'function') svg.opts['renderCallback'](dom);

}

}

var waitingForImages = true;

2960

if (svg.ImagesLoaded()) {

2961

waitingForImages = false;

2962

draw();

2963

}

2964

svg.intervalID = setInterval(function() {

2965

var needUpdate = false;

2966

2967

if (waitingForImages && svg.ImagesLoaded()) {

2968

waitingForImages = false;

needUpdate = true;

}

// need update from mouse events?

2973

if (svg.opts['ignoreMouse'] != true) {

2974

needUpdate = needUpdate | svg.Mouse.hasEvents();

2975

}

2976

2977

// need update from animations?

2978

if (svg.opts['ignoreAnimation'] != true) {

for (var i=0; i

svg.FRAMERATE);

// need update from redraw?

2985

if (typeof(svg.opts['forceRedraw']) == 'function') {

2986

if (svg.opts['forceRedraw']() == true) needUpdate = true;

2987

2988

2989

// render if needed

2990

if (needUpdate) {

2991

2992

// run and clear our events

}

/ svg.FRAMERATE);

}

svg.stop = function() {

2998

if (svg.intervalID) {

2999

clearInterval(svg.intervalID);

}

}

svg.Mouse = new (function() {

3004

this.events = [];

3005

this.hasEvents = function() { return this.events.length != 0; }

3006

3007

this.onclick = function(x, y) {

3008

this.events.push({ type: 'onclick', x: x, y: y,

3009

run: function(e) { if (e.onclick) e.onclick(); }

});

}

this.onmousemove = function(x, y) {

3014

this.events.push({ type: 'onmousemove', x: x, y: y,

3015

run: function(e) { if (e.onmousemove) e.onmousemove(); }

});

}

this.eventElements = [];

3020

3021

this.checkPath = function(element, ctx) {

for (var i=0; i

/ done running, clear

3048

this.events = [];

3049

this.eventElements = [];

}

});

return svg;

};

if (typeof(CanvasRenderingContext2D) != 'undefined') {

3057

CanvasRenderingContext2D.prototype.drawSvg = function(s, dx, dy, dw, dh) {

3058

canvg(this.canvas, s, {

3059

ignoreMouse: true,

3060

ignoreAnimation: true,

3061

ignoreDimensions: true,

ignoreClear: true,

offsetX: dx,

offsetY: dy,

scaleWidth: dw,

scaleHeight: dh

});

}

}

return canvg;

}));

corrade-nucleus-nucleons – Blame information for rev 20