3074 lines
100 KiB
JavaScript
3074 lines
100 KiB
JavaScript
/** @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 ) {
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'use strict';
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// 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);
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}
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return;
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}
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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);
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}
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else {
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// load from url
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svg.load(ctx, s);
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}
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}
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// 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);
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};
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}
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if (typeof matchesSelector === 'undefined') {
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matchesSelector = Sizzle.matchesSelector;
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}
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}
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// 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); };
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};
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// globals
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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);
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}
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});
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}
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svg.init();
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// images loaded
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svg.ImagesLoaded = function() {
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for (var i=0; i<svg.Images.length; i++) {
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if (!svg.Images[i].loaded) return false;
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}
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return true;
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}
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// trim
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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;
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}
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return null;
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}
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// parse xml
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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');
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}
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else
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{
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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);
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return xmlDoc;
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}
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}
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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() {
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return this.value;
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}
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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(/%$/)) {
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n = n / 100.0;
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}
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return n;
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}
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svg.Property.prototype.valueOrDefault = function(def) {
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if (this.hasValue()) return this.value;
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return def;
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}
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svg.Property.prototype.numValueOrDefault = function(def) {
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if (this.hasValue()) return this.numValue();
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return def;
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}
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// 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);
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}
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// pattern
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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);
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}
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return null;
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}
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// 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);
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return em;
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}
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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(/%$/)) return this.numValue() * svg.ViewPort.ComputeSize(viewPort);
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var n = this.numValue();
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if (processPercent && n < 1.0) return n * svg.ViewPort.ComputeSize(viewPort);
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return n;
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}
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// time extensions
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// get the time as milliseconds
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svg.Property.prototype.toMilliseconds = function() {
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if (!this.hasValue()) return 0;
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var s = this.value+'';
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if (s.match(/s$/)) 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);
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}
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// text extensions
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// 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];
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}
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// fonts
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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(' ') }
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}
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}
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var that = this;
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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;
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return f;
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}
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});
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// 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]);
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}
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return a;
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}
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svg.Point = function(x, y) {
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this.x = x;
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this.y = y;
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}
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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];
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this.x = xp;
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this.y = yp;
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}
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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 = [];
|
|
for (var i=0; i<a.length; i+=2) {
|
|
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
|
|
this.x1 = Number.NaN;
|
|
this.y1 = Number.NaN;
|
|
this.x2 = Number.NaN;
|
|
this.y2 = Number.NaN;
|
|
|
|
this.x = function() { return this.x1; }
|
|
this.y = function() { return this.y1; }
|
|
this.width = function() { return this.x2 - this.x1; }
|
|
this.height = function() { return this.y2 - this.y1; }
|
|
|
|
this.addPoint = function(x, y) {
|
|
if (x != null) {
|
|
if (isNaN(this.x1) || isNaN(this.x2)) {
|
|
this.x1 = x;
|
|
this.x2 = x;
|
|
}
|
|
if (x < this.x1) this.x1 = x;
|
|
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;
|
|
if (y > this.y2) this.y2 = y;
|
|
}
|
|
}
|
|
this.addX = function(x) { this.addPoint(x, null); }
|
|
this.addY = function(y) { this.addPoint(null, y); }
|
|
|
|
this.addBoundingBox = function(bb) {
|
|
this.addPoint(bb.x1, bb.y1);
|
|
this.addPoint(bb.x2, bb.y2);
|
|
}
|
|
|
|
this.addQuadraticCurve = function(p0x, p0y, p1x, p1y, p2x, p2y) {
|
|
var cp1x = p0x + 2/3 * (p1x - p0x); // CP1 = QP0 + 2/3 *(QP1-QP0)
|
|
var cp1y = p0y + 2/3 * (p1y - p0y); // CP1 = QP0 + 2/3 *(QP1-QP0)
|
|
var cp2x = cp1x + 1/3 * (p2x - p0x); // CP2 = CP1 + 1/3 *(QP2-QP0)
|
|
var cp2y = cp1y + 1/3 * (p2y - p0y); // CP2 = CP1 + 1/3 *(QP2-QP0)
|
|
this.addBezierCurve(p0x, p0y, cp1x, cp2x, cp1y, cp2y, p2x, p2y);
|
|
}
|
|
|
|
this.addBezierCurve = function(p0x, p0y, p1x, p1y, p2x, p2y, p3x, p3y) {
|
|
// from http://blog.hackers-cafe.net/2009/06/how-to-calculate-bezier-curves-bounding.html
|
|
var p0 = [p0x, p0y], p1 = [p1x, p1y], p2 = [p2x, p2y], p3 = [p3x, p3y];
|
|
this.addPoint(p0[0], p0[1]);
|
|
this.addPoint(p3[0], p3[1]);
|
|
|
|
for (i=0; i<=1; i++) {
|
|
var f = function(t) {
|
|
return Math.pow(1-t, 3) * p0[i]
|
|
+ 3 * Math.pow(1-t, 2) * t * p1[i]
|
|
+ 3 * (1-t) * Math.pow(t, 2) * p2[i]
|
|
+ Math.pow(t, 3) * p3[i];
|
|
}
|
|
|
|
var b = 6 * p0[i] - 12 * p1[i] + 6 * p2[i];
|
|
var a = -3 * p0[i] + 9 * p1[i] - 9 * p2[i] + 3 * p3[i];
|
|
var c = 3 * p1[i] - 3 * p0[i];
|
|
|
|
if (a == 0) {
|
|
if (b == 0) continue;
|
|
var t = -c / b;
|
|
if (0 < t && t < 1) {
|
|
if (i == 0) this.addX(f(t));
|
|
if (i == 1) this.addY(f(t));
|
|
}
|
|
continue;
|
|
}
|
|
|
|
var b2ac = Math.pow(b, 2) - 4 * c * a;
|
|
if (b2ac < 0) continue;
|
|
var t1 = (-b + Math.sqrt(b2ac)) / (2 * a);
|
|
if (0 < t1 && t1 < 1) {
|
|
if (i == 0) this.addX(f(t1));
|
|
if (i == 1) this.addY(f(t1));
|
|
}
|
|
var t2 = (-b - Math.sqrt(b2ac)) / (2 * a);
|
|
if (0 < t2 && t2 < 1) {
|
|
if (i == 0) this.addX(f(t2));
|
|
if (i == 1) this.addY(f(t2));
|
|
}
|
|
}
|
|
}
|
|
|
|
this.isPointInBox = function(x, y) {
|
|
return (this.x1 <= x && x <= this.x2 && this.y1 <= y && y <= this.y2);
|
|
}
|
|
|
|
this.addPoint(x1, y1);
|
|
this.addPoint(x2, y2);
|
|
}
|
|
|
|
// transforms
|
|
svg.Transform = function(v) {
|
|
var that = this;
|
|
this.Type = {}
|
|
|
|
// translate
|
|
this.Type.translate = function(s) {
|
|
this.p = svg.CreatePoint(s);
|
|
this.apply = function(ctx) {
|
|
ctx.translate(this.p.x || 0.0, this.p.y || 0.0);
|
|
}
|
|
this.unapply = function(ctx) {
|
|
ctx.translate(-1.0 * this.p.x || 0.0, -1.0 * this.p.y || 0.0);
|
|
}
|
|
this.applyToPoint = function(p) {
|
|
p.applyTransform([1, 0, 0, 1, this.p.x || 0.0, this.p.y || 0.0]);
|
|
}
|
|
}
|
|
|
|
// rotate
|
|
this.Type.rotate = function(s) {
|
|
var a = svg.ToNumberArray(s);
|
|
this.angle = new svg.Property('angle', a[0]);
|
|
this.cx = a[1] || 0;
|
|
this.cy = a[2] || 0;
|
|
this.apply = function(ctx) {
|
|
ctx.translate(this.cx, this.cy);
|
|
ctx.rotate(this.angle.toRadians());
|
|
ctx.translate(-this.cx, -this.cy);
|
|
}
|
|
this.unapply = function(ctx) {
|
|
ctx.translate(this.cx, this.cy);
|
|
ctx.rotate(-1.0 * this.angle.toRadians());
|
|
ctx.translate(-this.cx, -this.cy);
|
|
}
|
|
this.applyToPoint = function(p) {
|
|
var a = this.angle.toRadians();
|
|
p.applyTransform([1, 0, 0, 1, this.p.x || 0.0, this.p.y || 0.0]);
|
|
p.applyTransform([Math.cos(a), Math.sin(a), -Math.sin(a), Math.cos(a), 0, 0]);
|
|
p.applyTransform([1, 0, 0, 1, -this.p.x || 0.0, -this.p.y || 0.0]);
|
|
}
|
|
}
|
|
|
|
this.Type.scale = function(s) {
|
|
this.p = svg.CreatePoint(s);
|
|
this.apply = function(ctx) {
|
|
ctx.scale(this.p.x || 1.0, this.p.y || this.p.x || 1.0);
|
|
}
|
|
this.unapply = function(ctx) {
|
|
ctx.scale(1.0 / this.p.x || 1.0, 1.0 / this.p.y || this.p.x || 1.0);
|
|
}
|
|
this.applyToPoint = function(p) {
|
|
p.applyTransform([this.p.x || 0.0, 0, 0, this.p.y || 0.0, 0, 0]);
|
|
}
|
|
}
|
|
|
|
this.Type.matrix = function(s) {
|
|
this.m = svg.ToNumberArray(s);
|
|
this.apply = function(ctx) {
|
|
ctx.transform(this.m[0], this.m[1], this.m[2], this.m[3], this.m[4], this.m[5]);
|
|
}
|
|
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) {
|
|
p.applyTransform(this.m);
|
|
}
|
|
}
|
|
|
|
this.Type.SkewBase = function(s) {
|
|
this.base = that.Type.matrix;
|
|
this.base(s);
|
|
this.angle = new svg.Property('angle', s);
|
|
}
|
|
this.Type.SkewBase.prototype = new this.Type.matrix;
|
|
|
|
this.Type.skewX = function(s) {
|
|
this.base = that.Type.SkewBase;
|
|
this.base(s);
|
|
this.m = [1, 0, Math.tan(this.angle.toRadians()), 1, 0, 0];
|
|
}
|
|
this.Type.skewX.prototype = new this.Type.SkewBase;
|
|
|
|
this.Type.skewY = function(s) {
|
|
this.base = that.Type.SkewBase;
|
|
this.base(s);
|
|
this.m = [1, Math.tan(this.angle.toRadians()), 0, 1, 0, 0];
|
|
}
|
|
this.Type.skewY.prototype = new this.Type.SkewBase;
|
|
|
|
this.transforms = [];
|
|
|
|
this.apply = function(ctx) {
|
|
for (var i=0; i<this.transforms.length; i++) {
|
|
this.transforms[i].apply(ctx);
|
|
}
|
|
}
|
|
|
|
this.unapply = function(ctx) {
|
|
for (var i=this.transforms.length-1; i>=0; i--) {
|
|
this.transforms[i].unapply(ctx);
|
|
}
|
|
}
|
|
|
|
this.applyToPoint = function(p) {
|
|
for (var i=0; i<this.transforms.length; i++) {
|
|
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])/);
|
|
for (var i=0; i<data.length; i++) {
|
|
var type = svg.trim(data[i].split('(')[0]);
|
|
var s = data[i].split('(')[1].replace(')','');
|
|
var transform = new this.Type[type](s);
|
|
transform.type = type;
|
|
this.transforms.push(transform);
|
|
}
|
|
}
|
|
|
|
// aspect ratio
|
|
svg.AspectRatio = function(ctx, aspectRatio, width, desiredWidth, height, desiredHeight, minX, minY, refX, refY) {
|
|
// aspect ratio - http://www.w3.org/TR/SVG/coords.html#PreserveAspectRatioAttribute
|
|
aspectRatio = svg.compressSpaces(aspectRatio);
|
|
aspectRatio = aspectRatio.replace(/^defer\s/,''); // ignore defer
|
|
var align = aspectRatio.split(' ')[0] || 'xMidYMid';
|
|
var meetOrSlice = aspectRatio.split(' ')[1] || 'meet';
|
|
|
|
// calculate scale
|
|
var scaleX = width / desiredWidth;
|
|
var scaleY = height / desiredHeight;
|
|
var scaleMin = Math.min(scaleX, scaleY);
|
|
var scaleMax = Math.max(scaleX, scaleY);
|
|
if (meetOrSlice == 'meet') { desiredWidth *= scaleMin; desiredHeight *= scaleMin; }
|
|
if (meetOrSlice == 'slice') { desiredWidth *= scaleMax; desiredHeight *= scaleMax; }
|
|
|
|
refX = new svg.Property('refX', refX);
|
|
refY = new svg.Property('refY', refY);
|
|
if (refX.hasValue() && refY.hasValue()) {
|
|
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);
|
|
if (align.match(/YMid$/) && ((meetOrSlice == 'meet' && scaleMin == scaleX) || (meetOrSlice == 'slice' && scaleMax == scaleX))) ctx.translate(0, height / 2.0 - desiredHeight / 2.0);
|
|
if (align.match(/^xMax/) && ((meetOrSlice == 'meet' && scaleMin == scaleY) || (meetOrSlice == 'slice' && scaleMax == scaleY))) ctx.translate(width - desiredWidth, 0);
|
|
if (align.match(/YMax$/) && ((meetOrSlice == 'meet' && scaleMin == scaleX) || (meetOrSlice == 'slice' && scaleMax == scaleX))) ctx.translate(0, height - desiredHeight);
|
|
}
|
|
|
|
// scale
|
|
if (align == 'none') ctx.scale(scaleX, scaleY);
|
|
else if (meetOrSlice == 'meet') ctx.scale(scaleMin, scaleMin);
|
|
else if (meetOrSlice == 'slice') ctx.scale(scaleMax, scaleMax);
|
|
|
|
// translate
|
|
ctx.translate(minX == null ? 0 : -minX, minY == null ? 0 : -minY);
|
|
}
|
|
|
|
// elements
|
|
svg.Element = {}
|
|
|
|
svg.EmptyProperty = new svg.Property('EMPTY', '');
|
|
|
|
svg.Element.ElementBase = function(node) {
|
|
this.attributes = {};
|
|
this.styles = {};
|
|
this.stylesSpecificity = {};
|
|
this.children = [];
|
|
|
|
// get or create attribute
|
|
this.attribute = function(name, createIfNotExists) {
|
|
var a = this.attributes[name];
|
|
if (a != null) return a;
|
|
|
|
if (createIfNotExists == true) { a = new svg.Property(name, ''); this.attributes[name] = a; }
|
|
return a || svg.EmptyProperty;
|
|
}
|
|
|
|
this.getHrefAttribute = function() {
|
|
for (var a in this.attributes) {
|
|
if (a == 'href' || a.match(/:href$/)) {
|
|
return this.attributes[a];
|
|
}
|
|
}
|
|
return svg.EmptyProperty;
|
|
}
|
|
|
|
// get or create style, crawls up node tree
|
|
this.style = function(name, createIfNotExists, skipAncestors) {
|
|
var s = this.styles[name];
|
|
if (s != null) return s;
|
|
|
|
var a = this.attribute(name);
|
|
if (a != null && a.hasValue()) {
|
|
this.styles[name] = a; // move up to me to cache
|
|
return a;
|
|
}
|
|
|
|
if (skipAncestors != true) {
|
|
var p = this.parent;
|
|
if (p != null) {
|
|
var ps = p.style(name);
|
|
if (ps != null && ps.hasValue()) {
|
|
return ps;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (createIfNotExists == true) { s = new svg.Property(name, ''); this.styles[name] = s; }
|
|
return s || svg.EmptyProperty;
|
|
}
|
|
|
|
// base render
|
|
this.render = function(ctx) {
|
|
// don't render display=none
|
|
if (this.style('display').value == 'none') return;
|
|
|
|
// don't render visibility=hidden
|
|
if (this.style('visibility').value == 'hidden') return;
|
|
|
|
ctx.save();
|
|
if (this.style('mask').hasValue()) { // mask
|
|
var mask = this.style('mask').getDefinition();
|
|
if (mask != null) mask.apply(ctx, this);
|
|
}
|
|
else if (this.style('filter').hasValue()) { // filter
|
|
var filter = this.style('filter').getDefinition();
|
|
if (filter != null) filter.apply(ctx, this);
|
|
}
|
|
else {
|
|
this.setContext(ctx);
|
|
this.renderChildren(ctx);
|
|
this.clearContext(ctx);
|
|
}
|
|
ctx.restore();
|
|
}
|
|
|
|
// base set context
|
|
this.setContext = function(ctx) {
|
|
// OVERRIDE ME!
|
|
}
|
|
|
|
// base clear context
|
|
this.clearContext = function(ctx) {
|
|
// OVERRIDE ME!
|
|
}
|
|
|
|
// base render children
|
|
this.renderChildren = function(ctx) {
|
|
for (var i=0; i<this.children.length; i++) {
|
|
this.children[i].render(ctx);
|
|
}
|
|
}
|
|
|
|
this.addChild = function(childNode, create) {
|
|
var child = childNode;
|
|
if (create) child = svg.CreateElement(childNode);
|
|
child.parent = this;
|
|
if (child.type != 'title') { this.children.push(child); }
|
|
}
|
|
|
|
this.addStylesFromStyleDefinition = function () {
|
|
// add styles
|
|
for (var selector in svg.Styles) {
|
|
if (selector[0] != '@' && matchesSelector(node, selector)) {
|
|
var styles = svg.Styles[selector];
|
|
var specificity = svg.StylesSpecificity[selector];
|
|
if (styles != null) {
|
|
for (var name in styles) {
|
|
var existingSpecificity = this.stylesSpecificity[name];
|
|
if (typeof(existingSpecificity) == 'undefined') {
|
|
existingSpecificity = '000';
|
|
}
|
|
if (specificity > existingSpecificity) {
|
|
this.styles[name] = styles[name];
|
|
this.stylesSpecificity[name] = specificity;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
};
|
|
|
|
if (node != null && node.nodeType == 1) { //ELEMENT_NODE
|
|
// add attributes
|
|
for (var i=0; i<node.attributes.length; i++) {
|
|
var attribute = node.attributes[i];
|
|
this.attributes[attribute.nodeName] = new svg.Property(attribute.nodeName, attribute.value);
|
|
}
|
|
|
|
this.addStylesFromStyleDefinition();
|
|
|
|
// add inline styles
|
|
if (this.attribute('style').hasValue()) {
|
|
var styles = this.attribute('style').value.split(';');
|
|
for (var i=0; i<styles.length; i++) {
|
|
if (svg.trim(styles[i]) != '') {
|
|
var style = styles[i].split(':');
|
|
var name = svg.trim(style[0]);
|
|
var value = svg.trim(style[1]);
|
|
this.styles[name] = new svg.Property(name, value);
|
|
}
|
|
}
|
|
}
|
|
|
|
// add id
|
|
if (this.attribute('id').hasValue()) {
|
|
if (svg.Definitions[this.attribute('id').value] == null) {
|
|
svg.Definitions[this.attribute('id').value] = this;
|
|
}
|
|
}
|
|
|
|
// add children
|
|
for (var i=0; i<node.childNodes.length; i++) {
|
|
var childNode = node.childNodes[i];
|
|
if (childNode.nodeType == 1) this.addChild(childNode, true); //ELEMENT_NODE
|
|
if (this.captureTextNodes && (childNode.nodeType == 3 || childNode.nodeType == 4)) {
|
|
var text = childNode.value || childNode.text || childNode.textContent || '';
|
|
if (svg.compressSpaces(text) != '') {
|
|
this.addChild(new svg.Element.tspan(childNode), false); // TEXT_NODE
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
svg.Element.RenderedElementBase = function(node) {
|
|
this.base = svg.Element.ElementBase;
|
|
this.base(node);
|
|
|
|
this.setContext = function(ctx) {
|
|
// fill
|
|
if (this.style('fill').isUrlDefinition()) {
|
|
var fs = this.style('fill').getFillStyleDefinition(this, this.style('fill-opacity'));
|
|
if (fs != null) ctx.fillStyle = fs;
|
|
}
|
|
else if (this.style('fill').hasValue()) {
|
|
var fillStyle = this.style('fill');
|
|
if (fillStyle.value == 'currentColor') fillStyle.value = this.style('color').value;
|
|
if (fillStyle.value != 'inherit') ctx.fillStyle = (fillStyle.value == 'none' ? 'rgba(0,0,0,0)' : fillStyle.value);
|
|
}
|
|
if (this.style('fill-opacity').hasValue()) {
|
|
var fillStyle = new svg.Property('fill', ctx.fillStyle);
|
|
fillStyle = fillStyle.addOpacity(this.style('fill-opacity'));
|
|
ctx.fillStyle = fillStyle.value;
|
|
}
|
|
|
|
// stroke
|
|
if (this.style('stroke').isUrlDefinition()) {
|
|
var fs = this.style('stroke').getFillStyleDefinition(this, this.style('stroke-opacity'));
|
|
if (fs != null) ctx.strokeStyle = fs;
|
|
}
|
|
else if (this.style('stroke').hasValue()) {
|
|
var strokeStyle = this.style('stroke');
|
|
if (strokeStyle.value == 'currentColor') strokeStyle.value = this.style('color').value;
|
|
if (strokeStyle.value != 'inherit') ctx.strokeStyle = (strokeStyle.value == 'none' ? 'rgba(0,0,0,0)' : strokeStyle.value);
|
|
}
|
|
if (this.style('stroke-opacity').hasValue()) {
|
|
var strokeStyle = new svg.Property('stroke', ctx.strokeStyle);
|
|
strokeStyle = strokeStyle.addOpacity(this.style('stroke-opacity'));
|
|
ctx.strokeStyle = strokeStyle.value;
|
|
}
|
|
if (this.style('stroke-width').hasValue()) {
|
|
var newLineWidth = this.style('stroke-width').toPixels();
|
|
ctx.lineWidth = newLineWidth == 0 ? 0.001 : newLineWidth; // browsers don't respect 0
|
|
}
|
|
if (this.style('stroke-linecap').hasValue()) ctx.lineCap = this.style('stroke-linecap').value;
|
|
if (this.style('stroke-linejoin').hasValue()) ctx.lineJoin = this.style('stroke-linejoin').value;
|
|
if (this.style('stroke-miterlimit').hasValue()) ctx.miterLimit = this.style('stroke-miterlimit').value;
|
|
if (this.style('stroke-dasharray').hasValue() && this.style('stroke-dasharray').value != 'none') {
|
|
var gaps = svg.ToNumberArray(this.style('stroke-dasharray').value);
|
|
if (typeof(ctx.setLineDash) != 'undefined') { ctx.setLineDash(gaps); }
|
|
else if (typeof(ctx.webkitLineDash) != 'undefined') { ctx.webkitLineDash = gaps; }
|
|
else if (typeof(ctx.mozDash) != 'undefined' && !(gaps.length==1 && gaps[0]==0)) { ctx.mozDash = gaps; }
|
|
|
|
var offset = this.style('stroke-dashoffset').numValueOrDefault(1);
|
|
if (typeof(ctx.lineDashOffset) != 'undefined') { ctx.lineDashOffset = offset; }
|
|
else if (typeof(ctx.webkitLineDashOffset) != 'undefined') { ctx.webkitLineDashOffset = offset; }
|
|
else if (typeof(ctx.mozDashOffset) != 'undefined') { ctx.mozDashOffset = offset; }
|
|
}
|
|
|
|
// font
|
|
if (typeof(ctx.font) != 'undefined') {
|
|
ctx.font = svg.Font.CreateFont(
|
|
this.style('font-style').value,
|
|
this.style('font-variant').value,
|
|
this.style('font-weight').value,
|
|
this.style('font-size').hasValue() ? this.style('font-size').toPixels() + 'px' : '',
|
|
this.style('font-family').value).toString();
|
|
}
|
|
|
|
// transform
|
|
if (this.style('transform', false, true).hasValue()) {
|
|
var transform = new svg.Transform(this.style('transform', false, true).value);
|
|
transform.apply(ctx);
|
|
}
|
|
|
|
// clip
|
|
if (this.style('clip-path', false, true).hasValue()) {
|
|
var clip = this.style('clip-path', false, true).getDefinition();
|
|
if (clip != null) clip.apply(ctx);
|
|
}
|
|
|
|
// opacity
|
|
if (this.style('opacity').hasValue()) {
|
|
ctx.globalAlpha = this.style('opacity').numValue();
|
|
}
|
|
}
|
|
}
|
|
svg.Element.RenderedElementBase.prototype = new svg.Element.ElementBase;
|
|
|
|
svg.Element.PathElementBase = function(node) {
|
|
this.base = svg.Element.RenderedElementBase;
|
|
this.base(node);
|
|
|
|
this.path = function(ctx) {
|
|
if (ctx != null) ctx.beginPath();
|
|
return new svg.BoundingBox();
|
|
}
|
|
|
|
this.renderChildren = function(ctx) {
|
|
this.path(ctx);
|
|
svg.Mouse.checkPath(this, ctx);
|
|
if (ctx.fillStyle != '') {
|
|
if (this.style('fill-rule').valueOrDefault('inherit') != 'inherit') { ctx.fill(this.style('fill-rule').value); }
|
|
else { ctx.fill(); }
|
|
}
|
|
if (ctx.strokeStyle != '') ctx.stroke();
|
|
|
|
var markers = this.getMarkers();
|
|
if (markers != null) {
|
|
if (this.style('marker-start').isUrlDefinition()) {
|
|
var marker = this.style('marker-start').getDefinition();
|
|
marker.render(ctx, markers[0][0], markers[0][1]);
|
|
}
|
|
if (this.style('marker-mid').isUrlDefinition()) {
|
|
var marker = this.style('marker-mid').getDefinition();
|
|
for (var i=1;i<markers.length-1;i++) {
|
|
marker.render(ctx, markers[i][0], markers[i][1]);
|
|
}
|
|
}
|
|
if (this.style('marker-end').isUrlDefinition()) {
|
|
var marker = this.style('marker-end').getDefinition();
|
|
marker.render(ctx, markers[markers.length-1][0], markers[markers.length-1][1]);
|
|
}
|
|
}
|
|
}
|
|
|
|
this.getBoundingBox = function() {
|
|
return this.path();
|
|
}
|
|
|
|
this.getMarkers = function() {
|
|
return null;
|
|
}
|
|
}
|
|
svg.Element.PathElementBase.prototype = new svg.Element.RenderedElementBase;
|
|
|
|
// svg element
|
|
svg.Element.svg = function(node) {
|
|
this.base = svg.Element.RenderedElementBase;
|
|
this.base(node);
|
|
|
|
this.baseClearContext = this.clearContext;
|
|
this.clearContext = function(ctx) {
|
|
this.baseClearContext(ctx);
|
|
svg.ViewPort.RemoveCurrent();
|
|
}
|
|
|
|
this.baseSetContext = this.setContext;
|
|
this.setContext = function(ctx) {
|
|
// initial values and defaults
|
|
ctx.strokeStyle = 'rgba(0,0,0,0)';
|
|
ctx.lineCap = 'butt';
|
|
ctx.lineJoin = 'miter';
|
|
ctx.miterLimit = 4;
|
|
if (typeof(ctx.font) != 'undefined' && typeof(window.getComputedStyle) != 'undefined') {
|
|
ctx.font = window.getComputedStyle(ctx.canvas).getPropertyValue('font');
|
|
}
|
|
|
|
this.baseSetContext(ctx);
|
|
|
|
// create new view port
|
|
if (!this.attribute('x').hasValue()) this.attribute('x', true).value = 0;
|
|
if (!this.attribute('y').hasValue()) this.attribute('y', true).value = 0;
|
|
ctx.translate(this.attribute('x').toPixels('x'), this.attribute('y').toPixels('y'));
|
|
|
|
var width = svg.ViewPort.width();
|
|
var height = svg.ViewPort.height();
|
|
|
|
if (!this.attribute('width').hasValue()) this.attribute('width', true).value = '100%';
|
|
if (!this.attribute('height').hasValue()) this.attribute('height', true).value = '100%';
|
|
if (typeof(this.root) == 'undefined') {
|
|
width = this.attribute('width').toPixels('x');
|
|
height = this.attribute('height').toPixels('y');
|
|
|
|
var x = 0;
|
|
var y = 0;
|
|
if (this.attribute('refX').hasValue() && this.attribute('refY').hasValue()) {
|
|
x = -this.attribute('refX').toPixels('x');
|
|
y = -this.attribute('refY').toPixels('y');
|
|
}
|
|
|
|
if (this.attribute('overflow').valueOrDefault('hidden') != 'visible') {
|
|
ctx.beginPath();
|
|
ctx.moveTo(x, y);
|
|
ctx.lineTo(width, y);
|
|
ctx.lineTo(width, height);
|
|
ctx.lineTo(x, height);
|
|
ctx.closePath();
|
|
ctx.clip();
|
|
}
|
|
}
|
|
svg.ViewPort.SetCurrent(width, height);
|
|
|
|
// viewbox
|
|
if (this.attribute('viewBox').hasValue()) {
|
|
var viewBox = svg.ToNumberArray(this.attribute('viewBox').value);
|
|
var minX = viewBox[0];
|
|
var minY = viewBox[1];
|
|
width = viewBox[2];
|
|
height = viewBox[3];
|
|
|
|
svg.AspectRatio(ctx,
|
|
this.attribute('preserveAspectRatio').value,
|
|
svg.ViewPort.width(),
|
|
width,
|
|
svg.ViewPort.height(),
|
|
height,
|
|
minX,
|
|
minY,
|
|
this.attribute('refX').value,
|
|
this.attribute('refY').value);
|
|
|
|
svg.ViewPort.RemoveCurrent();
|
|
svg.ViewPort.SetCurrent(viewBox[2], viewBox[3]);
|
|
}
|
|
}
|
|
}
|
|
svg.Element.svg.prototype = new svg.Element.RenderedElementBase;
|
|
|
|
// rect element
|
|
svg.Element.rect = function(node) {
|
|
this.base = svg.Element.PathElementBase;
|
|
this.base(node);
|
|
|
|
this.path = function(ctx) {
|
|
var x = this.attribute('x').toPixels('x');
|
|
var y = this.attribute('y').toPixels('y');
|
|
var width = this.attribute('width').toPixels('x');
|
|
var height = this.attribute('height').toPixels('y');
|
|
var rx = this.attribute('rx').toPixels('x');
|
|
var ry = this.attribute('ry').toPixels('y');
|
|
if (this.attribute('rx').hasValue() && !this.attribute('ry').hasValue()) ry = rx;
|
|
if (this.attribute('ry').hasValue() && !this.attribute('rx').hasValue()) rx = ry;
|
|
rx = Math.min(rx, width / 2.0);
|
|
ry = Math.min(ry, height / 2.0);
|
|
if (ctx != null) {
|
|
ctx.beginPath();
|
|
ctx.moveTo(x + rx, y);
|
|
ctx.lineTo(x + width - rx, y);
|
|
ctx.quadraticCurveTo(x + width, y, x + width, y + ry)
|
|
ctx.lineTo(x + width, y + height - ry);
|
|
ctx.quadraticCurveTo(x + width, y + height, x + width - rx, y + height)
|
|
ctx.lineTo(x + rx, y + height);
|
|
ctx.quadraticCurveTo(x, y + height, x, y + height - ry)
|
|
ctx.lineTo(x, y + ry);
|
|
ctx.quadraticCurveTo(x, y, x + rx, y)
|
|
ctx.closePath();
|
|
}
|
|
|
|
return new svg.BoundingBox(x, y, x + width, y + height);
|
|
}
|
|
}
|
|
svg.Element.rect.prototype = new svg.Element.PathElementBase;
|
|
|
|
// circle element
|
|
svg.Element.circle = function(node) {
|
|
this.base = svg.Element.PathElementBase;
|
|
this.base(node);
|
|
|
|
this.path = function(ctx) {
|
|
var cx = this.attribute('cx').toPixels('x');
|
|
var cy = this.attribute('cy').toPixels('y');
|
|
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);
|
|
}
|
|
}
|
|
svg.Element.circle.prototype = new svg.Element.PathElementBase;
|
|
|
|
// ellipse element
|
|
svg.Element.ellipse = function(node) {
|
|
this.base = svg.Element.PathElementBase;
|
|
this.base(node);
|
|
|
|
this.path = function(ctx) {
|
|
var KAPPA = 4 * ((Math.sqrt(2) - 1) / 3);
|
|
var rx = this.attribute('rx').toPixels('x');
|
|
var ry = this.attribute('ry').toPixels('y');
|
|
var cx = this.attribute('cx').toPixels('x');
|
|
var cy = this.attribute('cy').toPixels('y');
|
|
|
|
if (ctx != null) {
|
|
ctx.beginPath();
|
|
ctx.moveTo(cx, cy - ry);
|
|
ctx.bezierCurveTo(cx + (KAPPA * rx), cy - ry, cx + rx, cy - (KAPPA * ry), cx + rx, cy);
|
|
ctx.bezierCurveTo(cx + rx, cy + (KAPPA * ry), cx + (KAPPA * rx), cy + ry, cx, cy + ry);
|
|
ctx.bezierCurveTo(cx - (KAPPA * rx), cy + ry, cx - rx, cy + (KAPPA * ry), cx - rx, cy);
|
|
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);
|
|
}
|
|
}
|
|
svg.Element.ellipse.prototype = new svg.Element.PathElementBase;
|
|
|
|
// line element
|
|
svg.Element.line = function(node) {
|
|
this.base = svg.Element.PathElementBase;
|
|
this.base(node);
|
|
|
|
this.getPoints = function() {
|
|
return [
|
|
new svg.Point(this.attribute('x1').toPixels('x'), this.attribute('y1').toPixels('y')),
|
|
new svg.Point(this.attribute('x2').toPixels('x'), this.attribute('y2').toPixels('y'))];
|
|
}
|
|
|
|
this.path = function(ctx) {
|
|
var points = this.getPoints();
|
|
|
|
if (ctx != null) {
|
|
ctx.beginPath();
|
|
ctx.moveTo(points[0].x, points[0].y);
|
|
ctx.lineTo(points[1].x, points[1].y);
|
|
}
|
|
|
|
return new svg.BoundingBox(points[0].x, points[0].y, points[1].x, points[1].y);
|
|
}
|
|
|
|
this.getMarkers = function() {
|
|
var points = this.getPoints();
|
|
var a = points[0].angleTo(points[1]);
|
|
return [[points[0], a], [points[1], a]];
|
|
}
|
|
}
|
|
svg.Element.line.prototype = new svg.Element.PathElementBase;
|
|
|
|
// polyline element
|
|
svg.Element.polyline = function(node) {
|
|
this.base = svg.Element.PathElementBase;
|
|
this.base(node);
|
|
|
|
this.points = svg.CreatePath(this.attribute('points').value);
|
|
this.path = function(ctx) {
|
|
var bb = new svg.BoundingBox(this.points[0].x, this.points[0].y);
|
|
if (ctx != null) {
|
|
ctx.beginPath();
|
|
ctx.moveTo(this.points[0].x, this.points[0].y);
|
|
}
|
|
for (var i=1; i<this.points.length; i++) {
|
|
bb.addPoint(this.points[i].x, this.points[i].y);
|
|
if (ctx != null) ctx.lineTo(this.points[i].x, this.points[i].y);
|
|
}
|
|
return bb;
|
|
}
|
|
|
|
this.getMarkers = function() {
|
|
var markers = [];
|
|
for (var i=0; i<this.points.length - 1; i++) {
|
|
markers.push([this.points[i], this.points[i].angleTo(this.points[i+1])]);
|
|
}
|
|
markers.push([this.points[this.points.length-1], markers[markers.length-1][1]]);
|
|
return markers;
|
|
}
|
|
}
|
|
svg.Element.polyline.prototype = new svg.Element.PathElementBase;
|
|
|
|
// polygon element
|
|
svg.Element.polygon = function(node) {
|
|
this.base = svg.Element.polyline;
|
|
this.base(node);
|
|
|
|
this.basePath = this.path;
|
|
this.path = function(ctx) {
|
|
var bb = this.basePath(ctx);
|
|
if (ctx != null) {
|
|
ctx.lineTo(this.points[0].x, this.points[0].y);
|
|
ctx.closePath();
|
|
}
|
|
return bb;
|
|
}
|
|
}
|
|
svg.Element.polygon.prototype = new svg.Element.polyline;
|
|
|
|
// path element
|
|
svg.Element.path = function(node) {
|
|
this.base = svg.Element.PathElementBase;
|
|
this.base(node);
|
|
|
|
var d = this.attribute('d').value;
|
|
// TODO: convert to real lexer based on http://www.w3.org/TR/SVG11/paths.html#PathDataBNF
|
|
d = d.replace(/,/gm,' '); // get rid of all commas
|
|
// As the end of a match can also be the start of the next match, we need to run this replace twice.
|
|
for(var i=0; i<2; i++)
|
|
d = d.replace(/([MmZzLlHhVvCcSsQqTtAa])([^\s])/gm,'$1 $2'); // suffix commands with spaces
|
|
d = d.replace(/([^\s])([MmZzLlHhVvCcSsQqTtAa])/gm,'$1 $2'); // prefix commands with spaces
|
|
d = d.replace(/([0-9])([+\-])/gm,'$1 $2'); // separate digits on +- signs
|
|
// Again, we need to run this twice to find all occurances
|
|
for(var i=0; i<2; i++)
|
|
d = d.replace(/(\.[0-9]*)(\.)/gm,'$1 $2'); // separate digits when they start with a comma
|
|
d = d.replace(/([Aa](\s+[0-9]+){3})\s+([01])\s*([01])/gm,'$1 $3 $4 '); // shorthand elliptical arc path syntax
|
|
d = svg.compressSpaces(d); // compress multiple spaces
|
|
d = svg.trim(d);
|
|
this.PathParser = new (function(d) {
|
|
this.tokens = d.split(' ');
|
|
|
|
this.reset = function() {
|
|
this.i = -1;
|
|
this.command = '';
|
|
this.previousCommand = '';
|
|
this.start = new svg.Point(0, 0);
|
|
this.control = new svg.Point(0, 0);
|
|
this.current = new svg.Point(0, 0);
|
|
this.points = [];
|
|
this.angles = [];
|
|
}
|
|
|
|
this.isEnd = function() {
|
|
return this.i >= this.tokens.length - 1;
|
|
}
|
|
|
|
this.isCommandOrEnd = function() {
|
|
if (this.isEnd()) return true;
|
|
return this.tokens[this.i + 1].match(/^[A-Za-z]$/) != null;
|
|
}
|
|
|
|
this.isRelativeCommand = function() {
|
|
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() {
|
|
this.i++;
|
|
return this.tokens[this.i];
|
|
}
|
|
|
|
this.getScalar = function() {
|
|
return parseFloat(this.getToken());
|
|
}
|
|
|
|
this.nextCommand = function() {
|
|
this.previousCommand = this.command;
|
|
this.command = this.getToken();
|
|
}
|
|
|
|
this.getPoint = function() {
|
|
var p = new svg.Point(this.getScalar(), this.getScalar());
|
|
return this.makeAbsolute(p);
|
|
}
|
|
|
|
this.getAsControlPoint = function() {
|
|
var p = this.getPoint();
|
|
this.control = p;
|
|
return p;
|
|
}
|
|
|
|
this.getAsCurrentPoint = function() {
|
|
var p = this.getPoint();
|
|
this.current = p;
|
|
return p;
|
|
}
|
|
|
|
this.getReflectedControlPoint = function() {
|
|
if (this.previousCommand.toLowerCase() != 'c' &&
|
|
this.previousCommand.toLowerCase() != 's' &&
|
|
this.previousCommand.toLowerCase() != 'q' &&
|
|
this.previousCommand.toLowerCase() != 't' ){
|
|
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) {
|
|
if (this.isRelativeCommand()) {
|
|
p.x += this.current.x;
|
|
p.y += this.current.y;
|
|
}
|
|
return p;
|
|
}
|
|
|
|
this.addMarker = function(p, from, priorTo) {
|
|
// if the last angle isn't filled in because we didn't have this point yet ...
|
|
if (priorTo != null && this.angles.length > 0 && this.angles[this.angles.length-1] == null) {
|
|
this.angles[this.angles.length-1] = this.points[this.points.length-1].angleTo(priorTo);
|
|
}
|
|
this.addMarkerAngle(p, from == null ? null : from.angleTo(p));
|
|
}
|
|
|
|
this.addMarkerAngle = function(p, a) {
|
|
this.points.push(p);
|
|
this.angles.push(a);
|
|
}
|
|
|
|
this.getMarkerPoints = function() { return this.points; }
|
|
this.getMarkerAngles = function() {
|
|
for (var i=0; i<this.angles.length; i++) {
|
|
if (this.angles[i] == null) {
|
|
for (var j=i+1; j<this.angles.length; j++) {
|
|
if (this.angles[j] != null) {
|
|
this.angles[i] = this.angles[j];
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return this.angles;
|
|
}
|
|
})(d);
|
|
|
|
this.path = function(ctx) {
|
|
var pp = this.PathParser;
|
|
pp.reset();
|
|
|
|
var bb = new svg.BoundingBox();
|
|
if (ctx != null) ctx.beginPath();
|
|
while (!pp.isEnd()) {
|
|
pp.nextCommand();
|
|
switch (pp.command) {
|
|
case 'M':
|
|
case 'm':
|
|
var p = pp.getAsCurrentPoint();
|
|
pp.addMarker(p);
|
|
bb.addPoint(p.x, p.y);
|
|
if (ctx != null) ctx.moveTo(p.x, p.y);
|
|
pp.start = pp.current;
|
|
while (!pp.isCommandOrEnd()) {
|
|
var p = pp.getAsCurrentPoint();
|
|
pp.addMarker(p, pp.start);
|
|
bb.addPoint(p.x, p.y);
|
|
if (ctx != null) ctx.lineTo(p.x, p.y);
|
|
}
|
|
break;
|
|
case 'L':
|
|
case 'l':
|
|
while (!pp.isCommandOrEnd()) {
|
|
var c = pp.current;
|
|
var p = pp.getAsCurrentPoint();
|
|
pp.addMarker(p, c);
|
|
bb.addPoint(p.x, p.y);
|
|
if (ctx != null) ctx.lineTo(p.x, p.y);
|
|
}
|
|
break;
|
|
case 'H':
|
|
case 'h':
|
|
while (!pp.isCommandOrEnd()) {
|
|
var newP = new svg.Point((pp.isRelativeCommand() ? pp.current.x : 0) + pp.getScalar(), pp.current.y);
|
|
pp.addMarker(newP, pp.current);
|
|
pp.current = newP;
|
|
bb.addPoint(pp.current.x, pp.current.y);
|
|
if (ctx != null) ctx.lineTo(pp.current.x, pp.current.y);
|
|
}
|
|
break;
|
|
case 'V':
|
|
case 'v':
|
|
while (!pp.isCommandOrEnd()) {
|
|
var newP = new svg.Point(pp.current.x, (pp.isRelativeCommand() ? pp.current.y : 0) + pp.getScalar());
|
|
pp.addMarker(newP, pp.current);
|
|
pp.current = newP;
|
|
bb.addPoint(pp.current.x, pp.current.y);
|
|
if (ctx != null) ctx.lineTo(pp.current.x, pp.current.y);
|
|
}
|
|
break;
|
|
case 'C':
|
|
case 'c':
|
|
while (!pp.isCommandOrEnd()) {
|
|
var curr = pp.current;
|
|
var p1 = pp.getPoint();
|
|
var cntrl = pp.getAsControlPoint();
|
|
var cp = pp.getAsCurrentPoint();
|
|
pp.addMarker(cp, cntrl, p1);
|
|
bb.addBezierCurve(curr.x, curr.y, p1.x, p1.y, cntrl.x, cntrl.y, cp.x, cp.y);
|
|
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()) {
|
|
var curr = pp.current;
|
|
var p1 = pp.getReflectedControlPoint();
|
|
var cntrl = pp.getAsControlPoint();
|
|
var cp = pp.getAsCurrentPoint();
|
|
pp.addMarker(cp, cntrl, p1);
|
|
bb.addBezierCurve(curr.x, curr.y, p1.x, p1.y, cntrl.x, cntrl.y, cp.x, cp.y);
|
|
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()) {
|
|
var curr = pp.current;
|
|
var cntrl = pp.getAsControlPoint();
|
|
var cp = pp.getAsCurrentPoint();
|
|
pp.addMarker(cp, cntrl, cntrl);
|
|
bb.addQuadraticCurve(curr.x, curr.y, cntrl.x, cntrl.y, cp.x, cp.y);
|
|
if (ctx != null) ctx.quadraticCurveTo(cntrl.x, cntrl.y, cp.x, cp.y);
|
|
}
|
|
break;
|
|
case 'T':
|
|
case 't':
|
|
while (!pp.isCommandOrEnd()) {
|
|
var curr = pp.current;
|
|
var cntrl = pp.getReflectedControlPoint();
|
|
pp.control = cntrl;
|
|
var cp = pp.getAsCurrentPoint();
|
|
pp.addMarker(cp, cntrl, cntrl);
|
|
bb.addQuadraticCurve(curr.x, curr.y, cntrl.x, cntrl.y, cp.x, cp.y);
|
|
if (ctx != null) ctx.quadraticCurveTo(cntrl.x, cntrl.y, cp.x, cp.y);
|
|
}
|
|
break;
|
|
case 'A':
|
|
case 'a':
|
|
while (!pp.isCommandOrEnd()) {
|
|
var curr = pp.current;
|
|
var rx = pp.getScalar();
|
|
var ry = pp.getScalar();
|
|
var xAxisRotation = pp.getScalar() * (Math.PI / 180.0);
|
|
var largeArcFlag = pp.getScalar();
|
|
var sweepFlag = pp.getScalar();
|
|
var cp = pp.getAsCurrentPoint();
|
|
|
|
// Conversion from endpoint to center parameterization
|
|
// http://www.w3.org/TR/SVG11/implnote.html#ArcImplementationNotes
|
|
// x1', y1'
|
|
var currp = new svg.Point(
|
|
Math.cos(xAxisRotation) * (curr.x - cp.x) / 2.0 + Math.sin(xAxisRotation) * (curr.y - cp.y) / 2.0,
|
|
-Math.sin(xAxisRotation) * (curr.x - cp.x) / 2.0 + Math.cos(xAxisRotation) * (curr.y - cp.y) / 2.0
|
|
);
|
|
// adjust radii
|
|
var l = Math.pow(currp.x,2)/Math.pow(rx,2)+Math.pow(currp.y,2)/Math.pow(ry,2);
|
|
if (l > 1) {
|
|
rx *= Math.sqrt(l);
|
|
ry *= Math.sqrt(l);
|
|
}
|
|
// cx', cy'
|
|
var s = (largeArcFlag == sweepFlag ? -1 : 1) * Math.sqrt(
|
|
((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))) /
|
|
(Math.pow(rx,2)*Math.pow(currp.y,2)+Math.pow(ry,2)*Math.pow(currp.x,2))
|
|
);
|
|
if (isNaN(s)) s = 0;
|
|
var cpp = new svg.Point(s * rx * currp.y / ry, s * -ry * currp.x / rx);
|
|
// cx, cy
|
|
var centp = new svg.Point(
|
|
(curr.x + cp.x) / 2.0 + Math.cos(xAxisRotation) * cpp.x - Math.sin(xAxisRotation) * cpp.y,
|
|
(curr.y + cp.y) / 2.0 + Math.sin(xAxisRotation) * cpp.x + Math.cos(xAxisRotation) * cpp.y
|
|
);
|
|
// vector magnitude
|
|
var m = function(v) { return Math.sqrt(Math.pow(v[0],2) + Math.pow(v[1],2)); }
|
|
// ratio between two vectors
|
|
var r = function(u, v) { return (u[0]*v[0]+u[1]*v[1]) / (m(u)*m(v)) }
|
|
// angle between two vectors
|
|
var a = function(u, v) { return (u[0]*v[1] < u[1]*v[0] ? -1 : 1) * Math.acos(r(u,v)); }
|
|
// initial angle
|
|
var a1 = a([1,0], [(currp.x-cpp.x)/rx,(currp.y-cpp.y)/ry]);
|
|
// angle delta
|
|
var u = [(currp.x-cpp.x)/rx,(currp.y-cpp.y)/ry];
|
|
var v = [(-currp.x-cpp.x)/rx,(-currp.y-cpp.y)/ry];
|
|
var ad = a(u, v);
|
|
if (r(u,v) <= -1) ad = Math.PI;
|
|
if (r(u,v) >= 1) ad = 0;
|
|
|
|
// for markers
|
|
var dir = 1 - sweepFlag ? 1.0 : -1.0;
|
|
var ah = a1 + dir * (ad / 2.0);
|
|
var halfWay = new svg.Point(
|
|
centp.x + rx * Math.cos(ah),
|
|
centp.y + ry * Math.sin(ah)
|
|
);
|
|
pp.addMarkerAngle(halfWay, ah - dir * Math.PI / 2);
|
|
pp.addMarkerAngle(cp, ah - dir * Math.PI);
|
|
|
|
bb.addPoint(cp.x, cp.y); // TODO: this is too naive, make it better
|
|
if (ctx != null) {
|
|
var r = rx > ry ? rx : ry;
|
|
var sx = rx > ry ? 1 : rx / ry;
|
|
var sy = rx > ry ? ry / rx : 1;
|
|
|
|
ctx.translate(centp.x, centp.y);
|
|
ctx.rotate(xAxisRotation);
|
|
ctx.scale(sx, sy);
|
|
ctx.arc(0, 0, r, a1, a1 + ad, 1 - sweepFlag);
|
|
ctx.scale(1/sx, 1/sy);
|
|
ctx.rotate(-xAxisRotation);
|
|
ctx.translate(-centp.x, -centp.y);
|
|
}
|
|
}
|
|
break;
|
|
case 'Z':
|
|
case 'z':
|
|
if (ctx != null) ctx.closePath();
|
|
pp.current = pp.start;
|
|
}
|
|
}
|
|
|
|
return bb;
|
|
}
|
|
|
|
this.getMarkers = function() {
|
|
var points = this.PathParser.getMarkerPoints();
|
|
var angles = this.PathParser.getMarkerAngles();
|
|
|
|
var markers = [];
|
|
for (var i=0; i<points.length; i++) {
|
|
markers.push([points[i], angles[i]]);
|
|
}
|
|
return markers;
|
|
}
|
|
}
|
|
svg.Element.path.prototype = new svg.Element.PathElementBase;
|
|
|
|
// pattern element
|
|
svg.Element.pattern = function(node) {
|
|
this.base = svg.Element.ElementBase;
|
|
this.base(node);
|
|
|
|
this.createPattern = function(ctx, element) {
|
|
var width = this.attribute('width').toPixels('x', true);
|
|
var height = this.attribute('height').toPixels('y', true);
|
|
|
|
// render me using a temporary svg element
|
|
var tempSvg = new svg.Element.svg();
|
|
tempSvg.attributes['viewBox'] = new svg.Property('viewBox', this.attribute('viewBox').value);
|
|
tempSvg.attributes['width'] = new svg.Property('width', width + 'px');
|
|
tempSvg.attributes['height'] = new svg.Property('height', height + 'px');
|
|
tempSvg.attributes['transform'] = new svg.Property('transform', this.attribute('patternTransform').value);
|
|
tempSvg.children = this.children;
|
|
|
|
var c = document.createElement('canvas');
|
|
c.width = width;
|
|
c.height = height;
|
|
var cctx = c.getContext('2d');
|
|
if (this.attribute('x').hasValue() && this.attribute('y').hasValue()) {
|
|
cctx.translate(this.attribute('x').toPixels('x', true), this.attribute('y').toPixels('y', true));
|
|
}
|
|
// render 3x3 grid so when we transform there's no white space on edges
|
|
for (var x=-1; x<=1; x++) {
|
|
for (var y=-1; y<=1; y++) {
|
|
cctx.save();
|
|
tempSvg.attributes['x'] = new svg.Property('x', x * c.width);
|
|
tempSvg.attributes['y'] = new svg.Property('y', y * c.height);
|
|
tempSvg.render(cctx);
|
|
cctx.restore();
|
|
}
|
|
}
|
|
var pattern = ctx.createPattern(c, 'repeat');
|
|
return pattern;
|
|
}
|
|
}
|
|
svg.Element.pattern.prototype = new svg.Element.ElementBase;
|
|
|
|
// marker element
|
|
svg.Element.marker = function(node) {
|
|
this.base = svg.Element.ElementBase;
|
|
this.base(node);
|
|
|
|
this.baseRender = this.render;
|
|
this.render = function(ctx, point, angle) {
|
|
ctx.translate(point.x, point.y);
|
|
if (this.attribute('orient').valueOrDefault('auto') == 'auto') ctx.rotate(angle);
|
|
if (this.attribute('markerUnits').valueOrDefault('strokeWidth') == 'strokeWidth') ctx.scale(ctx.lineWidth, ctx.lineWidth);
|
|
ctx.save();
|
|
|
|
// render me using a temporary svg element
|
|
var tempSvg = new svg.Element.svg();
|
|
tempSvg.attributes['viewBox'] = new svg.Property('viewBox', this.attribute('viewBox').value);
|
|
tempSvg.attributes['refX'] = new svg.Property('refX', this.attribute('refX').value);
|
|
tempSvg.attributes['refY'] = new svg.Property('refY', this.attribute('refY').value);
|
|
tempSvg.attributes['width'] = new svg.Property('width', this.attribute('markerWidth').value);
|
|
tempSvg.attributes['height'] = new svg.Property('height', this.attribute('markerHeight').value);
|
|
tempSvg.attributes['fill'] = new svg.Property('fill', this.attribute('fill').valueOrDefault('black'));
|
|
tempSvg.attributes['stroke'] = new svg.Property('stroke', this.attribute('stroke').valueOrDefault('none'));
|
|
tempSvg.children = this.children;
|
|
tempSvg.render(ctx);
|
|
|
|
ctx.restore();
|
|
if (this.attribute('markerUnits').valueOrDefault('strokeWidth') == 'strokeWidth') ctx.scale(1/ctx.lineWidth, 1/ctx.lineWidth);
|
|
if (this.attribute('orient').valueOrDefault('auto') == 'auto') ctx.rotate(-angle);
|
|
ctx.translate(-point.x, -point.y);
|
|
}
|
|
}
|
|
svg.Element.marker.prototype = new svg.Element.ElementBase;
|
|
|
|
// definitions element
|
|
svg.Element.defs = function(node) {
|
|
this.base = svg.Element.ElementBase;
|
|
this.base(node);
|
|
|
|
this.render = function(ctx) {
|
|
// NOOP
|
|
}
|
|
}
|
|
svg.Element.defs.prototype = new svg.Element.ElementBase;
|
|
|
|
// base for gradients
|
|
svg.Element.GradientBase = function(node) {
|
|
this.base = svg.Element.ElementBase;
|
|
this.base(node);
|
|
|
|
this.stops = [];
|
|
for (var i=0; i<this.children.length; i++) {
|
|
var child = this.children[i];
|
|
if (child.type == 'stop') this.stops.push(child);
|
|
}
|
|
|
|
this.getGradient = function() {
|
|
// OVERRIDE ME!
|
|
}
|
|
|
|
this.gradientUnits = function () {
|
|
return this.attribute('gradientUnits').valueOrDefault('objectBoundingBox');
|
|
}
|
|
|
|
this.attributesToInherit = ['gradientUnits'];
|
|
|
|
this.inheritStopContainer = function (stopsContainer) {
|
|
for (var i=0; i<this.attributesToInherit.length; i++) {
|
|
var attributeToInherit = this.attributesToInherit[i];
|
|
if (!this.attribute(attributeToInherit).hasValue() && stopsContainer.attribute(attributeToInherit).hasValue()) {
|
|
this.attribute(attributeToInherit, true).value = stopsContainer.attribute(attributeToInherit).value;
|
|
}
|
|
}
|
|
}
|
|
|
|
this.createGradient = function(ctx, element, parentOpacityProp) {
|
|
var stopsContainer = this;
|
|
if (this.getHrefAttribute().hasValue()) {
|
|
stopsContainer = this.getHrefAttribute().getDefinition();
|
|
this.inheritStopContainer(stopsContainer);
|
|
}
|
|
|
|
var addParentOpacity = function (color) {
|
|
if (parentOpacityProp.hasValue()) {
|
|
var p = new svg.Property('color', color);
|
|
return p.addOpacity(parentOpacityProp).value;
|
|
}
|
|
return color;
|
|
};
|
|
|
|
var g = this.getGradient(ctx, element);
|
|
if (g == null) return addParentOpacity(stopsContainer.stops[stopsContainer.stops.length - 1].color);
|
|
for (var i=0; i<stopsContainer.stops.length; i++) {
|
|
g.addColorStop(stopsContainer.stops[i].offset, addParentOpacity(stopsContainer.stops[i].color));
|
|
}
|
|
|
|
if (this.attribute('gradientTransform').hasValue()) {
|
|
// render as transformed pattern on temporary canvas
|
|
var rootView = svg.ViewPort.viewPorts[0];
|
|
|
|
var rect = new svg.Element.rect();
|
|
rect.attributes['x'] = new svg.Property('x', -svg.MAX_VIRTUAL_PIXELS/3.0);
|
|
rect.attributes['y'] = new svg.Property('y', -svg.MAX_VIRTUAL_PIXELS/3.0);
|
|
rect.attributes['width'] = new svg.Property('width', svg.MAX_VIRTUAL_PIXELS);
|
|
rect.attributes['height'] = new svg.Property('height', svg.MAX_VIRTUAL_PIXELS);
|
|
|
|
var group = new svg.Element.g();
|
|
group.attributes['transform'] = new svg.Property('transform', this.attribute('gradientTransform').value);
|
|
group.children = [ rect ];
|
|
|
|
var tempSvg = new svg.Element.svg();
|
|
tempSvg.attributes['x'] = new svg.Property('x', 0);
|
|
tempSvg.attributes['y'] = new svg.Property('y', 0);
|
|
tempSvg.attributes['width'] = new svg.Property('width', rootView.width);
|
|
tempSvg.attributes['height'] = new svg.Property('height', rootView.height);
|
|
tempSvg.children = [ group ];
|
|
|
|
var c = document.createElement('canvas');
|
|
c.width = rootView.width;
|
|
c.height = rootView.height;
|
|
var tempCtx = c.getContext('2d');
|
|
tempCtx.fillStyle = g;
|
|
tempSvg.render(tempCtx);
|
|
return tempCtx.createPattern(c, 'no-repeat');
|
|
}
|
|
|
|
return g;
|
|
}
|
|
}
|
|
svg.Element.GradientBase.prototype = new svg.Element.ElementBase;
|
|
|
|
// linear gradient element
|
|
svg.Element.linearGradient = function(node) {
|
|
this.base = svg.Element.GradientBase;
|
|
this.base(node);
|
|
|
|
this.attributesToInherit.push('x1');
|
|
this.attributesToInherit.push('y1');
|
|
this.attributesToInherit.push('x2');
|
|
this.attributesToInherit.push('y2');
|
|
|
|
this.getGradient = function(ctx, element) {
|
|
var bb = this.gradientUnits() == 'objectBoundingBox' ? element.getBoundingBox() : null;
|
|
|
|
if (!this.attribute('x1').hasValue()
|
|
&& !this.attribute('y1').hasValue()
|
|
&& !this.attribute('x2').hasValue()
|
|
&& !this.attribute('y2').hasValue()) {
|
|
this.attribute('x1', true).value = 0;
|
|
this.attribute('y1', true).value = 0;
|
|
this.attribute('x2', true).value = 1;
|
|
this.attribute('y2', true).value = 0;
|
|
}
|
|
|
|
var x1 = (this.gradientUnits() == 'objectBoundingBox'
|
|
? bb.x() + bb.width() * this.attribute('x1').numValue()
|
|
: this.attribute('x1').toPixels('x'));
|
|
var y1 = (this.gradientUnits() == 'objectBoundingBox'
|
|
? bb.y() + bb.height() * this.attribute('y1').numValue()
|
|
: this.attribute('y1').toPixels('y'));
|
|
var x2 = (this.gradientUnits() == 'objectBoundingBox'
|
|
? bb.x() + bb.width() * this.attribute('x2').numValue()
|
|
: this.attribute('x2').toPixels('x'));
|
|
var y2 = (this.gradientUnits() == 'objectBoundingBox'
|
|
? bb.y() + bb.height() * this.attribute('y2').numValue()
|
|
: this.attribute('y2').toPixels('y'));
|
|
|
|
if (x1 == x2 && y1 == y2) return null;
|
|
return ctx.createLinearGradient(x1, y1, x2, y2);
|
|
}
|
|
}
|
|
svg.Element.linearGradient.prototype = new svg.Element.GradientBase;
|
|
|
|
// radial gradient element
|
|
svg.Element.radialGradient = function(node) {
|
|
this.base = svg.Element.GradientBase;
|
|
this.base(node);
|
|
|
|
this.attributesToInherit.push('cx');
|
|
this.attributesToInherit.push('cy');
|
|
this.attributesToInherit.push('r');
|
|
this.attributesToInherit.push('fx');
|
|
this.attributesToInherit.push('fy');
|
|
|
|
this.getGradient = function(ctx, element) {
|
|
var bb = element.getBoundingBox();
|
|
|
|
if (!this.attribute('cx').hasValue()) this.attribute('cx', true).value = '50%';
|
|
if (!this.attribute('cy').hasValue()) this.attribute('cy', true).value = '50%';
|
|
if (!this.attribute('r').hasValue()) this.attribute('r', true).value = '50%';
|
|
|
|
var cx = (this.gradientUnits() == 'objectBoundingBox'
|
|
? bb.x() + bb.width() * this.attribute('cx').numValue()
|
|
: this.attribute('cx').toPixels('x'));
|
|
var cy = (this.gradientUnits() == 'objectBoundingBox'
|
|
? bb.y() + bb.height() * this.attribute('cy').numValue()
|
|
: this.attribute('cy').toPixels('y'));
|
|
|
|
var fx = cx;
|
|
var fy = cy;
|
|
if (this.attribute('fx').hasValue()) {
|
|
fx = (this.gradientUnits() == 'objectBoundingBox'
|
|
? bb.x() + bb.width() * this.attribute('fx').numValue()
|
|
: this.attribute('fx').toPixels('x'));
|
|
}
|
|
if (this.attribute('fy').hasValue()) {
|
|
fy = (this.gradientUnits() == 'objectBoundingBox'
|
|
? bb.y() + bb.height() * this.attribute('fy').numValue()
|
|
: this.attribute('fy').toPixels('y'));
|
|
}
|
|
|
|
var r = (this.gradientUnits() == 'objectBoundingBox'
|
|
? (bb.width() + bb.height()) / 2.0 * this.attribute('r').numValue()
|
|
: this.attribute('r').toPixels());
|
|
|
|
return ctx.createRadialGradient(fx, fy, 0, cx, cy, r);
|
|
}
|
|
}
|
|
svg.Element.radialGradient.prototype = new svg.Element.GradientBase;
|
|
|
|
// gradient stop element
|
|
svg.Element.stop = function(node) {
|
|
this.base = svg.Element.ElementBase;
|
|
this.base(node);
|
|
|
|
this.offset = this.attribute('offset').numValue();
|
|
if (this.offset < 0) this.offset = 0;
|
|
if (this.offset > 1) this.offset = 1;
|
|
|
|
var stopColor = this.style('stop-color', true);
|
|
if (stopColor.value === '') stopColor.value = '#000';
|
|
if (this.style('stop-opacity').hasValue()) stopColor = stopColor.addOpacity(this.style('stop-opacity'));
|
|
this.color = stopColor.value;
|
|
}
|
|
svg.Element.stop.prototype = new svg.Element.ElementBase;
|
|
|
|
// animation base element
|
|
svg.Element.AnimateBase = function(node) {
|
|
this.base = svg.Element.ElementBase;
|
|
this.base(node);
|
|
|
|
svg.Animations.push(this);
|
|
|
|
this.duration = 0.0;
|
|
this.begin = this.attribute('begin').toMilliseconds();
|
|
this.maxDuration = this.begin + this.attribute('dur').toMilliseconds();
|
|
|
|
this.getProperty = function() {
|
|
var attributeType = this.attribute('attributeType').value;
|
|
var attributeName = this.attribute('attributeName').value;
|
|
|
|
if (attributeType == 'CSS') {
|
|
return this.parent.style(attributeName, true);
|
|
}
|
|
return this.parent.attribute(attributeName, true);
|
|
};
|
|
|
|
this.initialValue = null;
|
|
this.initialUnits = '';
|
|
this.removed = false;
|
|
|
|
this.calcValue = function() {
|
|
// OVERRIDE ME!
|
|
return '';
|
|
}
|
|
|
|
this.update = function(delta) {
|
|
// set initial value
|
|
if (this.initialValue == null) {
|
|
this.initialValue = this.getProperty().value;
|
|
this.initialUnits = this.getProperty().getUnits();
|
|
}
|
|
|
|
// if we're past the end time
|
|
if (this.duration > this.maxDuration) {
|
|
// loop for indefinitely repeating animations
|
|
if (this.attribute('repeatCount').value == 'indefinite'
|
|
|| this.attribute('repeatDur').value == 'indefinite') {
|
|
this.duration = 0.0
|
|
}
|
|
else if (this.attribute('fill').valueOrDefault('remove') == 'freeze' && !this.frozen) {
|
|
this.frozen = true;
|
|
this.parent.animationFrozen = true;
|
|
this.parent.animationFrozenValue = this.getProperty().value;
|
|
}
|
|
else if (this.attribute('fill').valueOrDefault('remove') == 'remove' && !this.removed) {
|
|
this.removed = true;
|
|
this.getProperty().value = this.parent.animationFrozen ? this.parent.animationFrozenValue : this.initialValue;
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
this.duration = this.duration + delta;
|
|
|
|
// if we're past the begin time
|
|
var updated = false;
|
|
if (this.begin < this.duration) {
|
|
var newValue = this.calcValue(); // tween
|
|
|
|
if (this.attribute('type').hasValue()) {
|
|
// for transform, etc.
|
|
var type = this.attribute('type').value;
|
|
newValue = type + '(' + newValue + ')';
|
|
}
|
|
|
|
this.getProperty().value = newValue;
|
|
updated = true;
|
|
}
|
|
|
|
return updated;
|
|
}
|
|
|
|
this.from = this.attribute('from');
|
|
this.to = this.attribute('to');
|
|
this.values = this.attribute('values');
|
|
if (this.values.hasValue()) this.values.value = this.values.value.split(';');
|
|
|
|
// fraction of duration we've covered
|
|
this.progress = function() {
|
|
var ret = { progress: (this.duration - this.begin) / (this.maxDuration - this.begin) };
|
|
if (this.values.hasValue()) {
|
|
var p = ret.progress * (this.values.value.length - 1);
|
|
var lb = Math.floor(p), ub = Math.ceil(p);
|
|
ret.from = new svg.Property('from', parseFloat(this.values.value[lb]));
|
|
ret.to = new svg.Property('to', parseFloat(this.values.value[ub]));
|
|
ret.progress = (p - lb) / (ub - lb);
|
|
}
|
|
else {
|
|
ret.from = this.from;
|
|
ret.to = this.to;
|
|
}
|
|
return ret;
|
|
}
|
|
}
|
|
svg.Element.AnimateBase.prototype = new svg.Element.ElementBase;
|
|
|
|
// animate element
|
|
svg.Element.animate = function(node) {
|
|
this.base = svg.Element.AnimateBase;
|
|
this.base(node);
|
|
|
|
this.calcValue = function() {
|
|
var p = this.progress();
|
|
|
|
// tween value linearly
|
|
var newValue = p.from.numValue() + (p.to.numValue() - p.from.numValue()) * p.progress;
|
|
return newValue + this.initialUnits;
|
|
};
|
|
}
|
|
svg.Element.animate.prototype = new svg.Element.AnimateBase;
|
|
|
|
// animate color element
|
|
svg.Element.animateColor = function(node) {
|
|
this.base = svg.Element.AnimateBase;
|
|
this.base(node);
|
|
|
|
this.calcValue = function() {
|
|
var p = this.progress();
|
|
var from = new RGBColor(p.from.value);
|
|
var to = new RGBColor(p.to.value);
|
|
|
|
if (from.ok && to.ok) {
|
|
// tween color linearly
|
|
var r = from.r + (to.r - from.r) * p.progress;
|
|
var g = from.g + (to.g - from.g) * p.progress;
|
|
var b = from.b + (to.b - from.b) * p.progress;
|
|
return 'rgb('+parseInt(r,10)+','+parseInt(g,10)+','+parseInt(b,10)+')';
|
|
}
|
|
return this.attribute('from').value;
|
|
};
|
|
}
|
|
svg.Element.animateColor.prototype = new svg.Element.AnimateBase;
|
|
|
|
// animate transform element
|
|
svg.Element.animateTransform = function(node) {
|
|
this.base = svg.Element.AnimateBase;
|
|
this.base(node);
|
|
|
|
this.calcValue = function() {
|
|
var p = this.progress();
|
|
|
|
// tween value linearly
|
|
var from = svg.ToNumberArray(p.from.value);
|
|
var to = svg.ToNumberArray(p.to.value);
|
|
var newValue = '';
|
|
for (var i=0; i<from.length; i++) {
|
|
newValue += from[i] + (to[i] - from[i]) * p.progress + ' ';
|
|
}
|
|
return newValue;
|
|
};
|
|
}
|
|
svg.Element.animateTransform.prototype = new svg.Element.animate;
|
|
|
|
// font element
|
|
svg.Element.font = function(node) {
|
|
this.base = svg.Element.ElementBase;
|
|
this.base(node);
|
|
|
|
this.horizAdvX = this.attribute('horiz-adv-x').numValue();
|
|
|
|
this.isRTL = false;
|
|
this.isArabic = false;
|
|
this.fontFace = null;
|
|
this.missingGlyph = null;
|
|
this.glyphs = [];
|
|
for (var i=0; i<this.children.length; i++) {
|
|
var child = this.children[i];
|
|
if (child.type == 'font-face') {
|
|
this.fontFace = child;
|
|
if (child.style('font-family').hasValue()) {
|
|
svg.Definitions[child.style('font-family').value] = this;
|
|
}
|
|
}
|
|
else if (child.type == 'missing-glyph') this.missingGlyph = child;
|
|
else if (child.type == 'glyph') {
|
|
if (child.arabicForm != '') {
|
|
this.isRTL = true;
|
|
this.isArabic = true;
|
|
if (typeof(this.glyphs[child.unicode]) == 'undefined') this.glyphs[child.unicode] = [];
|
|
this.glyphs[child.unicode][child.arabicForm] = child;
|
|
}
|
|
else {
|
|
this.glyphs[child.unicode] = child;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
svg.Element.font.prototype = new svg.Element.ElementBase;
|
|
|
|
// font-face element
|
|
svg.Element.fontface = function(node) {
|
|
this.base = svg.Element.ElementBase;
|
|
this.base(node);
|
|
|
|
this.ascent = this.attribute('ascent').value;
|
|
this.descent = this.attribute('descent').value;
|
|
this.unitsPerEm = this.attribute('units-per-em').numValue();
|
|
}
|
|
svg.Element.fontface.prototype = new svg.Element.ElementBase;
|
|
|
|
// missing-glyph element
|
|
svg.Element.missingglyph = function(node) {
|
|
this.base = svg.Element.path;
|
|
this.base(node);
|
|
|
|
this.horizAdvX = 0;
|
|
}
|
|
svg.Element.missingglyph.prototype = new svg.Element.path;
|
|
|
|
// glyph element
|
|
svg.Element.glyph = function(node) {
|
|
this.base = svg.Element.path;
|
|
this.base(node);
|
|
|
|
this.horizAdvX = this.attribute('horiz-adv-x').numValue();
|
|
this.unicode = this.attribute('unicode').value;
|
|
this.arabicForm = this.attribute('arabic-form').value;
|
|
}
|
|
svg.Element.glyph.prototype = new svg.Element.path;
|
|
|
|
// text element
|
|
svg.Element.text = function(node) {
|
|
this.captureTextNodes = true;
|
|
this.base = svg.Element.RenderedElementBase;
|
|
this.base(node);
|
|
|
|
this.baseSetContext = this.setContext;
|
|
this.setContext = function(ctx) {
|
|
this.baseSetContext(ctx);
|
|
|
|
var textBaseline = this.style('dominant-baseline').toTextBaseline();
|
|
if (textBaseline == null) textBaseline = this.style('alignment-baseline').toTextBaseline();
|
|
if (textBaseline != null) ctx.textBaseline = textBaseline;
|
|
}
|
|
|
|
this.getBoundingBox = function () {
|
|
var x = this.attribute('x').toPixels('x');
|
|
var y = this.attribute('y').toPixels('y');
|
|
var fontSize = this.parent.style('font-size').numValueOrDefault(svg.Font.Parse(svg.ctx.font).fontSize);
|
|
return new svg.BoundingBox(x, y - fontSize, x + Math.floor(fontSize * 2.0 / 3.0) * this.children[0].getText().length, y);
|
|
}
|
|
|
|
this.renderChildren = function(ctx) {
|
|
this.x = this.attribute('x').toPixels('x');
|
|
this.y = this.attribute('y').toPixels('y');
|
|
if (this.attribute('dx').hasValue()) this.x += this.attribute('dx').toPixels('x');
|
|
if (this.attribute('dy').hasValue()) this.y += this.attribute('dy').toPixels('y');
|
|
this.x += this.getAnchorDelta(ctx, this, 0);
|
|
for (var i=0; i<this.children.length; i++) {
|
|
this.renderChild(ctx, this, i);
|
|
}
|
|
}
|
|
|
|
this.getAnchorDelta = function (ctx, parent, startI) {
|
|
var textAnchor = this.style('text-anchor').valueOrDefault('start');
|
|
if (textAnchor != 'start') {
|
|
var width = 0;
|
|
for (var i=startI; i<parent.children.length; i++) {
|
|
var child = parent.children[i];
|
|
if (i > startI && child.attribute('x').hasValue()) break; // new group
|
|
width += child.measureTextRecursive(ctx);
|
|
}
|
|
return -1 * (textAnchor == 'end' ? width : width / 2.0);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
this.renderChild = function(ctx, parent, i) {
|
|
var child = parent.children[i];
|
|
if (child.attribute('x').hasValue()) {
|
|
child.x = child.attribute('x').toPixels('x') + parent.getAnchorDelta(ctx, parent, i);
|
|
if (child.attribute('dx').hasValue()) child.x += child.attribute('dx').toPixels('x');
|
|
}
|
|
else {
|
|
if (child.attribute('dx').hasValue()) parent.x += child.attribute('dx').toPixels('x');
|
|
child.x = parent.x;
|
|
}
|
|
parent.x = child.x + child.measureText(ctx);
|
|
|
|
if (child.attribute('y').hasValue()) {
|
|
child.y = child.attribute('y').toPixels('y');
|
|
if (child.attribute('dy').hasValue()) child.y += child.attribute('dy').toPixels('y');
|
|
}
|
|
else {
|
|
if (child.attribute('dy').hasValue()) parent.y += child.attribute('dy').toPixels('y');
|
|
child.y = parent.y;
|
|
}
|
|
parent.y = child.y;
|
|
|
|
child.render(ctx);
|
|
|
|
for (var i=0; i<child.children.length; i++) {
|
|
parent.renderChild(ctx, child, i);
|
|
}
|
|
}
|
|
}
|
|
svg.Element.text.prototype = new svg.Element.RenderedElementBase;
|
|
|
|
// text base
|
|
svg.Element.TextElementBase = function(node) {
|
|
this.base = svg.Element.RenderedElementBase;
|
|
this.base(node);
|
|
|
|
this.getGlyph = function(font, text, i) {
|
|
var c = text[i];
|
|
var glyph = null;
|
|
if (font.isArabic) {
|
|
var arabicForm = 'isolated';
|
|
if ((i==0 || text[i-1]==' ') && i<text.length-2 && text[i+1]!=' ') arabicForm = 'terminal';
|
|
if (i>0 && text[i-1]!=' ' && i<text.length-2 && text[i+1]!=' ') arabicForm = 'medial';
|
|
if (i>0 && text[i-1]!=' ' && (i == text.length-1 || text[i+1]==' ')) arabicForm = 'initial';
|
|
if (typeof(font.glyphs[c]) != 'undefined') {
|
|
glyph = font.glyphs[c][arabicForm];
|
|
if (glyph == null && font.glyphs[c].type == 'glyph') glyph = font.glyphs[c];
|
|
}
|
|
}
|
|
else {
|
|
glyph = font.glyphs[c];
|
|
}
|
|
if (glyph == null) glyph = font.missingGlyph;
|
|
return glyph;
|
|
}
|
|
|
|
this.renderChildren = function(ctx) {
|
|
var customFont = this.parent.style('font-family').getDefinition();
|
|
if (customFont != null) {
|
|
var fontSize = this.parent.style('font-size').numValueOrDefault(svg.Font.Parse(svg.ctx.font).fontSize);
|
|
var fontStyle = this.parent.style('font-style').valueOrDefault(svg.Font.Parse(svg.ctx.font).fontStyle);
|
|
var text = this.getText();
|
|
if (customFont.isRTL) text = text.split("").reverse().join("");
|
|
|
|
var dx = svg.ToNumberArray(this.parent.attribute('dx').value);
|
|
for (var i=0; i<text.length; i++) {
|
|
var glyph = this.getGlyph(customFont, text, i);
|
|
var scale = fontSize / customFont.fontFace.unitsPerEm;
|
|
ctx.translate(this.x, this.y);
|
|
ctx.scale(scale, -scale);
|
|
var lw = ctx.lineWidth;
|
|
ctx.lineWidth = ctx.lineWidth * customFont.fontFace.unitsPerEm / fontSize;
|
|
if (fontStyle == 'italic') ctx.transform(1, 0, .4, 1, 0, 0);
|
|
glyph.render(ctx);
|
|
if (fontStyle == 'italic') ctx.transform(1, 0, -.4, 1, 0, 0);
|
|
ctx.lineWidth = lw;
|
|
ctx.scale(1/scale, -1/scale);
|
|
ctx.translate(-this.x, -this.y);
|
|
|
|
this.x += fontSize * (glyph.horizAdvX || customFont.horizAdvX) / customFont.fontFace.unitsPerEm;
|
|
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);
|
|
if (ctx.strokeStyle != '') ctx.strokeText(svg.compressSpaces(this.getText()), this.x, this.y);
|
|
}
|
|
|
|
this.getText = function() {
|
|
// OVERRIDE ME
|
|
}
|
|
|
|
this.measureTextRecursive = function(ctx) {
|
|
var width = this.measureText(ctx);
|
|
for (var i=0; i<this.children.length; i++) {
|
|
width += this.children[i].measureTextRecursive(ctx);
|
|
}
|
|
return width;
|
|
}
|
|
|
|
this.measureText = function(ctx) {
|
|
var customFont = this.parent.style('font-family').getDefinition();
|
|
if (customFont != null) {
|
|
var fontSize = this.parent.style('font-size').numValueOrDefault(svg.Font.Parse(svg.ctx.font).fontSize);
|
|
var measure = 0;
|
|
var text = this.getText();
|
|
if (customFont.isRTL) text = text.split("").reverse().join("");
|
|
var dx = svg.ToNumberArray(this.parent.attribute('dx').value);
|
|
for (var i=0; i<text.length; i++) {
|
|
var glyph = this.getGlyph(customFont, text, i);
|
|
measure += (glyph.horizAdvX || customFont.horizAdvX) * fontSize / customFont.fontFace.unitsPerEm;
|
|
if (typeof(dx[i]) != 'undefined' && !isNaN(dx[i])) {
|
|
measure += dx[i];
|
|
}
|
|
}
|
|
return measure;
|
|
}
|
|
|
|
var textToMeasure = svg.compressSpaces(this.getText());
|
|
if (!ctx.measureText) return textToMeasure.length * 10;
|
|
|
|
ctx.save();
|
|
this.setContext(ctx);
|
|
var width = ctx.measureText(textToMeasure).width;
|
|
ctx.restore();
|
|
return width;
|
|
}
|
|
}
|
|
svg.Element.TextElementBase.prototype = new svg.Element.RenderedElementBase;
|
|
|
|
// tspan
|
|
svg.Element.tspan = function(node) {
|
|
this.captureTextNodes = true;
|
|
this.base = svg.Element.TextElementBase;
|
|
this.base(node);
|
|
|
|
this.text = svg.compressSpaces(node.value || node.text || node.textContent || '');
|
|
this.getText = function() {
|
|
// if this node has children, then they own the text
|
|
if (this.children.length > 0) { return ''; }
|
|
return this.text;
|
|
}
|
|
}
|
|
svg.Element.tspan.prototype = new svg.Element.TextElementBase;
|
|
|
|
// tref
|
|
svg.Element.tref = function(node) {
|
|
this.base = svg.Element.TextElementBase;
|
|
this.base(node);
|
|
|
|
this.getText = function() {
|
|
var element = this.getHrefAttribute().getDefinition();
|
|
if (element != null) return element.children[0].getText();
|
|
}
|
|
}
|
|
svg.Element.tref.prototype = new svg.Element.TextElementBase;
|
|
|
|
// a element
|
|
svg.Element.a = function(node) {
|
|
this.base = svg.Element.TextElementBase;
|
|
this.base(node);
|
|
|
|
this.hasText = node.childNodes.length > 0;
|
|
for (var i=0; i<node.childNodes.length; i++) {
|
|
if (node.childNodes[i].nodeType != 3) this.hasText = false;
|
|
}
|
|
|
|
// this might contain text
|
|
this.text = this.hasText ? node.childNodes[0].value : '';
|
|
this.getText = function() {
|
|
return this.text;
|
|
}
|
|
|
|
this.baseRenderChildren = this.renderChildren;
|
|
this.renderChildren = function(ctx) {
|
|
if (this.hasText) {
|
|
// render as text element
|
|
this.baseRenderChildren(ctx);
|
|
var fontSize = new svg.Property('fontSize', svg.Font.Parse(svg.ctx.font).fontSize);
|
|
svg.Mouse.checkBoundingBox(this, new svg.BoundingBox(this.x, this.y - fontSize.toPixels('y'), this.x + this.measureText(ctx), this.y));
|
|
}
|
|
else if (this.children.length > 0) {
|
|
// render as temporary group
|
|
var g = new svg.Element.g();
|
|
g.children = this.children;
|
|
g.parent = this;
|
|
g.render(ctx);
|
|
}
|
|
}
|
|
|
|
this.onclick = function() {
|
|
window.open(this.getHrefAttribute().value);
|
|
}
|
|
|
|
this.onmousemove = function() {
|
|
svg.ctx.canvas.style.cursor = 'pointer';
|
|
}
|
|
}
|
|
svg.Element.a.prototype = new svg.Element.TextElementBase;
|
|
|
|
// image element
|
|
svg.Element.image = function(node) {
|
|
this.base = svg.Element.RenderedElementBase;
|
|
this.base(node);
|
|
|
|
var href = this.getHrefAttribute().value;
|
|
if (href == '') { return; }
|
|
var isSvg = href.match(/\.svg$/)
|
|
|
|
svg.Images.push(this);
|
|
this.loaded = false;
|
|
if (!isSvg) {
|
|
this.img = document.createElement('img');
|
|
if (svg.opts['useCORS'] == true) { this.img.crossOrigin = 'Anonymous'; }
|
|
var self = this;
|
|
this.img.onload = function() { self.loaded = true; }
|
|
this.img.onerror = function() { svg.log('ERROR: image "' + href + '" not found'); self.loaded = true; }
|
|
this.img.src = href;
|
|
}
|
|
else {
|
|
this.img = svg.ajax(href);
|
|
this.loaded = true;
|
|
}
|
|
|
|
this.renderChildren = function(ctx) {
|
|
var x = this.attribute('x').toPixels('x');
|
|
var y = this.attribute('y').toPixels('y');
|
|
|
|
var width = this.attribute('width').toPixels('x');
|
|
var height = this.attribute('height').toPixels('y');
|
|
if (width == 0 || height == 0) return;
|
|
|
|
ctx.save();
|
|
if (isSvg) {
|
|
ctx.drawSvg(this.img, x, y, width, height);
|
|
}
|
|
else {
|
|
ctx.translate(x, y);
|
|
svg.AspectRatio(ctx,
|
|
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() {
|
|
var x = this.attribute('x').toPixels('x');
|
|
var y = this.attribute('y').toPixels('y');
|
|
var width = this.attribute('width').toPixels('x');
|
|
var height = this.attribute('height').toPixels('y');
|
|
return new svg.BoundingBox(x, y, x + width, y + height);
|
|
}
|
|
}
|
|
svg.Element.image.prototype = new svg.Element.RenderedElementBase;
|
|
|
|
// group element
|
|
svg.Element.g = function(node) {
|
|
this.base = svg.Element.RenderedElementBase;
|
|
this.base(node);
|
|
|
|
this.getBoundingBox = function() {
|
|
var bb = new svg.BoundingBox();
|
|
for (var i=0; i<this.children.length; i++) {
|
|
bb.addBoundingBox(this.children[i].getBoundingBox());
|
|
}
|
|
return bb;
|
|
};
|
|
}
|
|
svg.Element.g.prototype = new svg.Element.RenderedElementBase;
|
|
|
|
// symbol element
|
|
svg.Element.symbol = function(node) {
|
|
this.base = svg.Element.RenderedElementBase;
|
|
this.base(node);
|
|
|
|
this.render = function(ctx) {
|
|
// NO RENDER
|
|
};
|
|
}
|
|
svg.Element.symbol.prototype = new svg.Element.RenderedElementBase;
|
|
|
|
// style element
|
|
svg.Element.style = function(node) {
|
|
this.base = svg.Element.ElementBase;
|
|
this.base(node);
|
|
|
|
// text, or spaces then CDATA
|
|
var css = ''
|
|
for (var i=0; i<node.childNodes.length; i++) {
|
|
css += node.childNodes[i].data;
|
|
}
|
|
css = css.replace(/(\/\*([^*]|[\r\n]|(\*+([^*\/]|[\r\n])))*\*+\/)|(^[\s]*\/\/.*)/gm, ''); // remove comments
|
|
css = svg.compressSpaces(css); // replace whitespace
|
|
var cssDefs = css.split('}');
|
|
for (var i=0; i<cssDefs.length; i++) {
|
|
if (svg.trim(cssDefs[i]) != '') {
|
|
var cssDef = cssDefs[i].split('{');
|
|
var cssClasses = cssDef[0].split(',');
|
|
var cssProps = cssDef[1].split(';');
|
|
for (var j=0; j<cssClasses.length; j++) {
|
|
var cssClass = svg.trim(cssClasses[j]);
|
|
if (cssClass != '') {
|
|
var props = svg.Styles[cssClass] || {};
|
|
for (var k=0; k<cssProps.length; k++) {
|
|
var prop = cssProps[k].indexOf(':');
|
|
var name = cssProps[k].substr(0, prop);
|
|
var value = cssProps[k].substr(prop + 1, cssProps[k].length - prop);
|
|
if (name != null && value != null) {
|
|
props[svg.trim(name)] = new svg.Property(svg.trim(name), svg.trim(value));
|
|
}
|
|
}
|
|
svg.Styles[cssClass] = props;
|
|
svg.StylesSpecificity[cssClass] = getSelectorSpecificity(cssClass);
|
|
if (cssClass == '@font-face') {
|
|
var fontFamily = props['font-family'].value.replace(/"/g,'');
|
|
var srcs = props['src'].value.split(',');
|
|
for (var s=0; s<srcs.length; s++) {
|
|
if (srcs[s].indexOf('format("svg")') > 0) {
|
|
var urlStart = srcs[s].indexOf('url');
|
|
var urlEnd = srcs[s].indexOf(')', urlStart);
|
|
var url = srcs[s].substr(urlStart + 5, urlEnd - urlStart - 6);
|
|
var doc = svg.parseXml(svg.ajax(url));
|
|
var fonts = doc.getElementsByTagName('font');
|
|
for (var f=0; f<fonts.length; f++) {
|
|
var font = svg.CreateElement(fonts[f]);
|
|
svg.Definitions[fontFamily] = font;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
svg.Element.style.prototype = new svg.Element.ElementBase;
|
|
|
|
// use element
|
|
svg.Element.use = function(node) {
|
|
this.base = svg.Element.RenderedElementBase;
|
|
this.base(node);
|
|
|
|
this.baseSetContext = this.setContext;
|
|
this.setContext = function(ctx) {
|
|
this.baseSetContext(ctx);
|
|
if (this.attribute('x').hasValue()) ctx.translate(this.attribute('x').toPixels('x'), 0);
|
|
if (this.attribute('y').hasValue()) ctx.translate(0, this.attribute('y').toPixels('y'));
|
|
}
|
|
|
|
var element = this.getHrefAttribute().getDefinition();
|
|
|
|
this.path = function(ctx) {
|
|
if (element != null) element.path(ctx);
|
|
}
|
|
|
|
this.getBoundingBox = function() {
|
|
if (element != null) return element.getBoundingBox();
|
|
}
|
|
|
|
this.renderChildren = function(ctx) {
|
|
if (element != null) {
|
|
var tempSvg = element;
|
|
if (element.type == 'symbol') {
|
|
// render me using a temporary svg element in symbol cases (http://www.w3.org/TR/SVG/struct.html#UseElement)
|
|
tempSvg = new svg.Element.svg();
|
|
tempSvg.type = 'svg';
|
|
tempSvg.attributes['viewBox'] = new svg.Property('viewBox', element.attribute('viewBox').value);
|
|
tempSvg.attributes['preserveAspectRatio'] = new svg.Property('preserveAspectRatio', element.attribute('preserveAspectRatio').value);
|
|
tempSvg.attributes['overflow'] = new svg.Property('overflow', element.attribute('overflow').value);
|
|
tempSvg.children = element.children;
|
|
}
|
|
if (tempSvg.type == 'svg') {
|
|
// if symbol or svg, inherit width/height from me
|
|
if (this.attribute('width').hasValue()) tempSvg.attributes['width'] = new svg.Property('width', this.attribute('width').value);
|
|
if (this.attribute('height').hasValue()) tempSvg.attributes['height'] = new svg.Property('height', this.attribute('height').value);
|
|
}
|
|
var oldParent = tempSvg.parent;
|
|
tempSvg.parent = null;
|
|
tempSvg.render(ctx);
|
|
tempSvg.parent = oldParent;
|
|
}
|
|
}
|
|
}
|
|
svg.Element.use.prototype = new svg.Element.RenderedElementBase;
|
|
|
|
// mask element
|
|
svg.Element.mask = function(node) {
|
|
this.base = svg.Element.ElementBase;
|
|
this.base(node);
|
|
|
|
this.apply = function(ctx, element) {
|
|
// render as temp svg
|
|
var x = this.attribute('x').toPixels('x');
|
|
var y = this.attribute('y').toPixels('y');
|
|
var width = this.attribute('width').toPixels('x');
|
|
var height = this.attribute('height').toPixels('y');
|
|
|
|
if (width == 0 && height == 0) {
|
|
var bb = new svg.BoundingBox();
|
|
for (var i=0; i<this.children.length; i++) {
|
|
bb.addBoundingBox(this.children[i].getBoundingBox());
|
|
}
|
|
var x = Math.floor(bb.x1);
|
|
var y = Math.floor(bb.y1);
|
|
var width = Math.floor(bb.width());
|
|
var height = Math.floor(bb.height());
|
|
}
|
|
|
|
// temporarily remove mask to avoid recursion
|
|
var mask = element.attribute('mask').value;
|
|
element.attribute('mask').value = '';
|
|
|
|
var cMask = document.createElement('canvas');
|
|
cMask.width = x + width;
|
|
cMask.height = y + height;
|
|
var maskCtx = cMask.getContext('2d');
|
|
this.renderChildren(maskCtx);
|
|
|
|
var c = document.createElement('canvas');
|
|
c.width = x + width;
|
|
c.height = y + height;
|
|
var tempCtx = c.getContext('2d');
|
|
element.render(tempCtx);
|
|
tempCtx.globalCompositeOperation = 'destination-in';
|
|
tempCtx.fillStyle = maskCtx.createPattern(cMask, 'no-repeat');
|
|
tempCtx.fillRect(0, 0, x + width, y + height);
|
|
|
|
ctx.fillStyle = tempCtx.createPattern(c, 'no-repeat');
|
|
ctx.fillRect(0, 0, x + width, y + height);
|
|
|
|
// reassign mask
|
|
element.attribute('mask').value = mask;
|
|
}
|
|
|
|
this.render = function(ctx) {
|
|
// NO RENDER
|
|
}
|
|
}
|
|
svg.Element.mask.prototype = new svg.Element.ElementBase;
|
|
|
|
// clip element
|
|
svg.Element.clipPath = function(node) {
|
|
this.base = svg.Element.ElementBase;
|
|
this.base(node);
|
|
|
|
this.apply = function(ctx) {
|
|
var oldBeginPath = CanvasRenderingContext2D.prototype.beginPath;
|
|
CanvasRenderingContext2D.prototype.beginPath = function () { };
|
|
|
|
var oldClosePath = CanvasRenderingContext2D.prototype.closePath;
|
|
CanvasRenderingContext2D.prototype.closePath = function () { };
|
|
|
|
oldBeginPath.call(ctx);
|
|
for (var i=0; i<this.children.length; i++) {
|
|
var child = this.children[i];
|
|
if (typeof(child.path) != 'undefined') {
|
|
var transform = null;
|
|
if (child.style('transform', false, true).hasValue()) {
|
|
transform = new svg.Transform(child.style('transform', false, true).value);
|
|
transform.apply(ctx);
|
|
}
|
|
child.path(ctx);
|
|
CanvasRenderingContext2D.prototype.closePath = oldClosePath;
|
|
if (transform) { transform.unapply(ctx); }
|
|
}
|
|
}
|
|
oldClosePath.call(ctx);
|
|
ctx.clip();
|
|
|
|
CanvasRenderingContext2D.prototype.beginPath = oldBeginPath;
|
|
CanvasRenderingContext2D.prototype.closePath = oldClosePath;
|
|
}
|
|
|
|
this.render = function(ctx) {
|
|
// NO RENDER
|
|
}
|
|
}
|
|
svg.Element.clipPath.prototype = new svg.Element.ElementBase;
|
|
|
|
// filters
|
|
svg.Element.filter = function(node) {
|
|
this.base = svg.Element.ElementBase;
|
|
this.base(node);
|
|
|
|
this.apply = function(ctx, element) {
|
|
// render as temp svg
|
|
var bb = element.getBoundingBox();
|
|
var x = Math.floor(bb.x1);
|
|
var y = Math.floor(bb.y1);
|
|
var width = Math.floor(bb.width());
|
|
var height = Math.floor(bb.height());
|
|
|
|
// temporarily remove filter to avoid recursion
|
|
var filter = element.style('filter').value;
|
|
element.style('filter').value = '';
|
|
|
|
var px = 0, py = 0;
|
|
for (var i=0; i<this.children.length; i++) {
|
|
var efd = this.children[i].extraFilterDistance || 0;
|
|
px = Math.max(px, efd);
|
|
py = Math.max(py, efd);
|
|
}
|
|
|
|
var c = document.createElement('canvas');
|
|
c.width = width + 2*px;
|
|
c.height = height + 2*py;
|
|
var tempCtx = c.getContext('2d');
|
|
tempCtx.translate(-x + px, -y + py);
|
|
element.render(tempCtx);
|
|
|
|
// apply filters
|
|
for (var i=0; i<this.children.length; i++) {
|
|
if (typeof(this.children[i].apply) === 'function') {
|
|
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);
|
|
|
|
// reassign filter
|
|
element.style('filter', true).value = filter;
|
|
}
|
|
|
|
this.render = function(ctx) {
|
|
// NO RENDER
|
|
}
|
|
}
|
|
svg.Element.filter.prototype = new svg.Element.ElementBase;
|
|
|
|
svg.Element.feMorphology = function(node) {
|
|
this.base = svg.Element.ElementBase;
|
|
this.base(node);
|
|
|
|
this.apply = function(ctx, x, y, width, height) {
|
|
// TODO: implement
|
|
}
|
|
}
|
|
svg.Element.feMorphology.prototype = new svg.Element.ElementBase;
|
|
|
|
svg.Element.feComposite = function(node) {
|
|
this.base = svg.Element.ElementBase;
|
|
this.base(node);
|
|
|
|
this.apply = function(ctx, x, y, width, height) {
|
|
// TODO: implement
|
|
}
|
|
}
|
|
svg.Element.feComposite.prototype = new svg.Element.ElementBase;
|
|
|
|
svg.Element.feColorMatrix = function(node) {
|
|
this.base = svg.Element.ElementBase;
|
|
this.base(node);
|
|
|
|
var matrix = svg.ToNumberArray(this.attribute('values').value);
|
|
switch (this.attribute('type').valueOrDefault('matrix')) { // http://www.w3.org/TR/SVG/filters.html#feColorMatrixElement
|
|
case 'saturate':
|
|
var s = matrix[0];
|
|
matrix = [0.213+0.787*s,0.715-0.715*s,0.072-0.072*s,0,0,
|
|
0.213-0.213*s,0.715+0.285*s,0.072-0.072*s,0,0,
|
|
0.213-0.213*s,0.715-0.715*s,0.072+0.928*s,0,0,
|
|
0,0,0,1,0,
|
|
0,0,0,0,1];
|
|
break;
|
|
case 'hueRotate':
|
|
var a = matrix[0] * Math.PI / 180.0;
|
|
var c = function (m1,m2,m3) { return m1 + Math.cos(a)*m2 + Math.sin(a)*m3; };
|
|
matrix = [c(0.213,0.787,-0.213),c(0.715,-0.715,-0.715),c(0.072,-0.072,0.928),0,0,
|
|
c(0.213,-0.213,0.143),c(0.715,0.285,0.140),c(0.072,-0.072,-0.283),0,0,
|
|
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':
|
|
matrix = [0,0,0,0,0,
|
|
0,0,0,0,0,
|
|
0,0,0,0,0,
|
|
0.2125,0.7154,0.0721,0,0,
|
|
0,0,0,0,1];
|
|
break;
|
|
}
|
|
|
|
function imGet(img, x, y, width, height, rgba) {
|
|
return img[y*width*4 + x*4 + rgba];
|
|
}
|
|
|
|
function imSet(img, x, y, width, height, rgba, val) {
|
|
img[y*width*4 + x*4 + rgba] = val;
|
|
}
|
|
|
|
function m(i, v) {
|
|
var mi = matrix[i];
|
|
return mi * (mi < 0 ? v - 255 : v);
|
|
}
|
|
|
|
this.apply = function(ctx, x, y, width, height) {
|
|
// assuming x==0 && y==0 for now
|
|
var srcData = ctx.getImageData(0, 0, width, height);
|
|
for (var y = 0; y < height; y++) {
|
|
for (var x = 0; x < width; x++) {
|
|
var r = imGet(srcData.data, x, y, width, height, 0);
|
|
var g = imGet(srcData.data, x, y, width, height, 1);
|
|
var b = imGet(srcData.data, x, y, width, height, 2);
|
|
var a = imGet(srcData.data, x, y, width, height, 3);
|
|
imSet(srcData.data, x, y, width, height, 0, m(0,r)+m(1,g)+m(2,b)+m(3,a)+m(4,1));
|
|
imSet(srcData.data, x, y, width, height, 1, m(5,r)+m(6,g)+m(7,b)+m(8,a)+m(9,1));
|
|
imSet(srcData.data, x, y, width, height, 2, m(10,r)+m(11,g)+m(12,b)+m(13,a)+m(14,1));
|
|
imSet(srcData.data, x, y, width, height, 3, m(15,r)+m(16,g)+m(17,b)+m(18,a)+m(19,1));
|
|
}
|
|
}
|
|
ctx.clearRect(0, 0, width, height);
|
|
ctx.putImageData(srcData, 0, 0);
|
|
}
|
|
}
|
|
svg.Element.feColorMatrix.prototype = new svg.Element.ElementBase;
|
|
|
|
svg.Element.feGaussianBlur = function(node) {
|
|
this.base = svg.Element.ElementBase;
|
|
this.base(node);
|
|
|
|
this.blurRadius = Math.floor(this.attribute('stdDeviation').numValue());
|
|
this.extraFilterDistance = this.blurRadius;
|
|
|
|
this.apply = function(ctx, x, y, width, height) {
|
|
if (typeof(stackBlur.canvasRGBA) == 'undefined') {
|
|
svg.log('ERROR: StackBlur.js must be included for blur to work');
|
|
return;
|
|
}
|
|
|
|
// StackBlur requires canvas be on document
|
|
ctx.canvas.id = svg.UniqueId();
|
|
ctx.canvas.style.display = 'none';
|
|
document.body.appendChild(ctx.canvas);
|
|
stackBlur.canvasRGBA(ctx.canvas.id, x, y, width, height, this.blurRadius);
|
|
document.body.removeChild(ctx.canvas);
|
|
}
|
|
}
|
|
svg.Element.feGaussianBlur.prototype = new svg.Element.ElementBase;
|
|
|
|
// title element, do nothing
|
|
svg.Element.title = function(node) {
|
|
}
|
|
svg.Element.title.prototype = new svg.Element.ElementBase;
|
|
|
|
// desc element, do nothing
|
|
svg.Element.desc = function(node) {
|
|
}
|
|
svg.Element.desc.prototype = new svg.Element.ElementBase;
|
|
|
|
svg.Element.MISSING = function(node) {
|
|
svg.log('ERROR: Element \'' + node.nodeName + '\' not yet implemented.');
|
|
}
|
|
svg.Element.MISSING.prototype = new svg.Element.ElementBase;
|
|
|
|
// element factory
|
|
svg.CreateElement = function(node) {
|
|
var className = node.nodeName.replace(/^[^:]+:/,''); // remove namespace
|
|
className = className.replace(/\-/g,''); // remove dashes
|
|
var e = null;
|
|
if (typeof(svg.Element[className]) != 'undefined') {
|
|
e = new svg.Element[className](node);
|
|
}
|
|
else {
|
|
e = new svg.Element.MISSING(node);
|
|
}
|
|
|
|
e.type = node.nodeName;
|
|
return e;
|
|
}
|
|
|
|
// load from url
|
|
svg.load = function(ctx, url) {
|
|
svg.loadXml(ctx, svg.ajax(url));
|
|
}
|
|
|
|
// load from xml
|
|
svg.loadXml = function(ctx, xml) {
|
|
svg.loadXmlDoc(ctx, svg.parseXml(xml));
|
|
}
|
|
|
|
svg.loadXmlDoc = function(ctx, dom) {
|
|
svg.init(ctx);
|
|
|
|
var mapXY = function(p) {
|
|
var e = ctx.canvas;
|
|
while (e) {
|
|
p.x -= e.offsetLeft;
|
|
p.y -= e.offsetTop;
|
|
e = e.offsetParent;
|
|
}
|
|
if (window.scrollX) p.x += window.scrollX;
|
|
if (window.scrollY) p.y += window.scrollY;
|
|
return p;
|
|
}
|
|
|
|
// bind mouse
|
|
if (svg.opts['ignoreMouse'] != true) {
|
|
ctx.canvas.onclick = function(e) {
|
|
var p = mapXY(new svg.Point(e != null ? e.clientX : event.clientX, e != null ? e.clientY : event.clientY));
|
|
svg.Mouse.onclick(p.x, p.y);
|
|
};
|
|
ctx.canvas.onmousemove = function(e) {
|
|
var p = mapXY(new svg.Point(e != null ? e.clientX : event.clientX, e != null ? e.clientY : event.clientY));
|
|
svg.Mouse.onmousemove(p.x, p.y);
|
|
};
|
|
}
|
|
|
|
var e = svg.CreateElement(dom.documentElement);
|
|
e.root = true;
|
|
e.addStylesFromStyleDefinition();
|
|
|
|
// render loop
|
|
var isFirstRender = true;
|
|
var draw = function() {
|
|
svg.ViewPort.Clear();
|
|
if (ctx.canvas.parentNode) svg.ViewPort.SetCurrent(ctx.canvas.parentNode.clientWidth, ctx.canvas.parentNode.clientHeight);
|
|
|
|
if (svg.opts['ignoreDimensions'] != true) {
|
|
// set canvas size
|
|
if (e.style('width').hasValue()) {
|
|
ctx.canvas.width = e.style('width').toPixels('x');
|
|
ctx.canvas.style.width = ctx.canvas.width + 'px';
|
|
}
|
|
if (e.style('height').hasValue()) {
|
|
ctx.canvas.height = e.style('height').toPixels('y');
|
|
ctx.canvas.style.height = ctx.canvas.height + 'px';
|
|
}
|
|
}
|
|
var cWidth = ctx.canvas.clientWidth || ctx.canvas.width;
|
|
var cHeight = ctx.canvas.clientHeight || ctx.canvas.height;
|
|
if (svg.opts['ignoreDimensions'] == true && e.style('width').hasValue() && e.style('height').hasValue()) {
|
|
cWidth = e.style('width').toPixels('x');
|
|
cHeight = e.style('height').toPixels('y');
|
|
}
|
|
svg.ViewPort.SetCurrent(cWidth, cHeight);
|
|
|
|
if (svg.opts['offsetX'] != null) e.attribute('x', true).value = svg.opts['offsetX'];
|
|
if (svg.opts['offsetY'] != null) e.attribute('y', true).value = svg.opts['offsetY'];
|
|
if (svg.opts['scaleWidth'] != null || svg.opts['scaleHeight'] != null) {
|
|
var xRatio = null, yRatio = null, viewBox = svg.ToNumberArray(e.attribute('viewBox').value);
|
|
|
|
if (svg.opts['scaleWidth'] != null) {
|
|
if (e.attribute('width').hasValue()) xRatio = e.attribute('width').toPixels('x') / svg.opts['scaleWidth'];
|
|
else if (!isNaN(viewBox[2])) xRatio = viewBox[2] / svg.opts['scaleWidth'];
|
|
}
|
|
|
|
if (svg.opts['scaleHeight'] != null) {
|
|
if (e.attribute('height').hasValue()) yRatio = e.attribute('height').toPixels('y') / svg.opts['scaleHeight'];
|
|
else if (!isNaN(viewBox[3])) yRatio = viewBox[3] / svg.opts['scaleHeight'];
|
|
}
|
|
|
|
if (xRatio == null) { xRatio = yRatio; }
|
|
if (yRatio == null) { yRatio = xRatio; }
|
|
|
|
e.attribute('width', true).value = svg.opts['scaleWidth'];
|
|
e.attribute('height', true).value = svg.opts['scaleHeight'];
|
|
e.style('transform', true, true).value += ' scale('+(1.0/xRatio)+','+(1.0/yRatio)+')';
|
|
}
|
|
|
|
// clear and render
|
|
if (svg.opts['ignoreClear'] != true) {
|
|
ctx.clearRect(0, 0, cWidth, cHeight);
|
|
}
|
|
e.render(ctx);
|
|
if (isFirstRender) {
|
|
isFirstRender = false;
|
|
if (typeof(svg.opts['renderCallback']) == 'function') svg.opts['renderCallback'](dom);
|
|
}
|
|
}
|
|
|
|
var waitingForImages = true;
|
|
if (svg.ImagesLoaded()) {
|
|
waitingForImages = false;
|
|
draw();
|
|
}
|
|
svg.intervalID = setInterval(function() {
|
|
var needUpdate = false;
|
|
|
|
if (waitingForImages && svg.ImagesLoaded()) {
|
|
waitingForImages = false;
|
|
needUpdate = true;
|
|
}
|
|
|
|
// need update from mouse events?
|
|
if (svg.opts['ignoreMouse'] != true) {
|
|
needUpdate = needUpdate | svg.Mouse.hasEvents();
|
|
}
|
|
|
|
// need update from animations?
|
|
if (svg.opts['ignoreAnimation'] != true) {
|
|
for (var i=0; i<svg.Animations.length; i++) {
|
|
needUpdate = needUpdate | svg.Animations[i].update(1000 / svg.FRAMERATE);
|
|
}
|
|
}
|
|
|
|
// need update from redraw?
|
|
if (typeof(svg.opts['forceRedraw']) == 'function') {
|
|
if (svg.opts['forceRedraw']() == true) needUpdate = true;
|
|
}
|
|
|
|
// render if needed
|
|
if (needUpdate) {
|
|
draw();
|
|
svg.Mouse.runEvents(); // run and clear our events
|
|
}
|
|
}, 1000 / svg.FRAMERATE);
|
|
}
|
|
|
|
svg.stop = function() {
|
|
if (svg.intervalID) {
|
|
clearInterval(svg.intervalID);
|
|
}
|
|
}
|
|
|
|
svg.Mouse = new (function() {
|
|
this.events = [];
|
|
this.hasEvents = function() { return this.events.length != 0; }
|
|
|
|
this.onclick = function(x, y) {
|
|
this.events.push({ type: 'onclick', x: x, y: y,
|
|
run: function(e) { if (e.onclick) e.onclick(); }
|
|
});
|
|
}
|
|
|
|
this.onmousemove = function(x, y) {
|
|
this.events.push({ type: 'onmousemove', x: x, y: y,
|
|
run: function(e) { if (e.onmousemove) e.onmousemove(); }
|
|
});
|
|
}
|
|
|
|
this.eventElements = [];
|
|
|
|
this.checkPath = function(element, ctx) {
|
|
for (var i=0; i<this.events.length; i++) {
|
|
var e = this.events[i];
|
|
if (ctx.isPointInPath && ctx.isPointInPath(e.x, e.y)) this.eventElements[i] = element;
|
|
}
|
|
}
|
|
|
|
this.checkBoundingBox = function(element, bb) {
|
|
for (var i=0; i<this.events.length; i++) {
|
|
var e = this.events[i];
|
|
if (bb.isPointInBox(e.x, e.y)) this.eventElements[i] = element;
|
|
}
|
|
}
|
|
|
|
this.runEvents = function() {
|
|
svg.ctx.canvas.style.cursor = '';
|
|
|
|
for (var i=0; i<this.events.length; i++) {
|
|
var e = this.events[i];
|
|
var element = this.eventElements[i];
|
|
while (element) {
|
|
e.run(element);
|
|
element = element.parent;
|
|
}
|
|
}
|
|
|
|
// done running, clear
|
|
this.events = [];
|
|
this.eventElements = [];
|
|
}
|
|
});
|
|
|
|
return svg;
|
|
};
|
|
|
|
if (typeof(CanvasRenderingContext2D) != 'undefined') {
|
|
CanvasRenderingContext2D.prototype.drawSvg = function(s, dx, dy, dw, dh) {
|
|
canvg(this.canvas, s, {
|
|
ignoreMouse: true,
|
|
ignoreAnimation: true,
|
|
ignoreDimensions: true,
|
|
ignoreClear: true,
|
|
offsetX: dx,
|
|
offsetY: dy,
|
|
scaleWidth: dw,
|
|
scaleHeight: dh
|
|
});
|
|
}
|
|
}
|
|
|
|
return canvg;
|
|
|
|
}));
|