8398c9048d
code was modified slightly, so the code differs from the original downloadable 1.9.5 version
635 lines
20 KiB
JavaScript
635 lines
20 KiB
JavaScript
dojo.provide("dojox.gfx.svg");
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dojo.require("dojox.gfx._base");
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dojo.require("dojox.gfx.shape");
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dojo.require("dojox.gfx.path");
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dojox.gfx.svg.xmlns = {
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xlink: "http://www.w3.org/1999/xlink",
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svg: "http://www.w3.org/2000/svg"
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};
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dojox.gfx.svg.getRef = function(name){
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// summary: returns a DOM Node specified by the name argument or null
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// name: String: an SVG external reference
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if(!name || name == "none") return null;
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if(name.match(/^url\(#.+\)$/)){
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return dojo.byId(name.slice(5, -1)); // Node
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}
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// alternative representation of a reference
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if(name.match(/^#dojoUnique\d+$/)){
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// we assume here that a reference was generated by dojox.gfx
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return dojo.byId(name.slice(1)); // Node
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}
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return null; // Node
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};
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dojox.gfx.svg.dasharray = {
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solid: "none",
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shortdash: [4, 1],
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shortdot: [1, 1],
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shortdashdot: [4, 1, 1, 1],
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shortdashdotdot: [4, 1, 1, 1, 1, 1],
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dot: [1, 3],
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dash: [4, 3],
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longdash: [8, 3],
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dashdot: [4, 3, 1, 3],
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longdashdot: [8, 3, 1, 3],
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longdashdotdot: [8, 3, 1, 3, 1, 3]
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};
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dojo.extend(dojox.gfx.Shape, {
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// summary: SVG-specific implementation of dojox.gfx.Shape methods
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setFill: function(fill){
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// summary: sets a fill object (SVG)
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// fill: Object: a fill object
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// (see dojox.gfx.defaultLinearGradient,
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// dojox.gfx.defaultRadialGradient,
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// dojox.gfx.defaultPattern,
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// or dojo.Color)
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if(!fill){
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// don't fill
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this.fillStyle = null;
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this.rawNode.setAttribute("fill", "none");
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this.rawNode.setAttribute("fill-opacity", 0);
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return this;
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}
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var f;
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// FIXME: slightly magical. We're using the outer scope's "f", but setting it later
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var setter = function(x){
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// we assume that we're executing in the scope of the node to mutate
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this.setAttribute(x, f[x].toFixed(8));
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};
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if(typeof(fill) == "object" && "type" in fill){
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// gradient
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switch(fill.type){
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case "linear":
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f = dojox.gfx.makeParameters(dojox.gfx.defaultLinearGradient, fill);
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var gradient = this._setFillObject(f, "linearGradient");
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dojo.forEach(["x1", "y1", "x2", "y2"], setter, gradient);
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break;
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case "radial":
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f = dojox.gfx.makeParameters(dojox.gfx.defaultRadialGradient, fill);
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var gradient = this._setFillObject(f, "radialGradient");
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dojo.forEach(["cx", "cy", "r"], setter, gradient);
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break;
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case "pattern":
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f = dojox.gfx.makeParameters(dojox.gfx.defaultPattern, fill);
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var pattern = this._setFillObject(f, "pattern");
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dojo.forEach(["x", "y", "width", "height"], setter, pattern);
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break;
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}
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this.fillStyle = f;
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return this;
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}
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// color object
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var f = dojox.gfx.normalizeColor(fill);
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this.fillStyle = f;
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this.rawNode.setAttribute("fill", f.toCss());
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this.rawNode.setAttribute("fill-opacity", f.a);
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this.rawNode.setAttribute("fill-rule", "evenodd");
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return this; // self
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},
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setStroke: function(stroke){
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// summary:
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// sets a stroke object (SVG)
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// stroke: Object
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// a stroke object (see dojox.gfx.defaultStroke)
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var rn = this.rawNode;
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if(!stroke){
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// don't stroke
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this.strokeStyle = null;
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rn.setAttribute("stroke", "none");
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rn.setAttribute("stroke-opacity", 0);
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return this;
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}
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// normalize the stroke
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if(typeof stroke == "string" || dojo.isArray(stroke) || stroke instanceof dojo.Color){
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stroke = { color: stroke };
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}
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var s = this.strokeStyle = dojox.gfx.makeParameters(dojox.gfx.defaultStroke, stroke);
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s.color = dojox.gfx.normalizeColor(s.color);
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// generate attributes
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if(s){
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rn.setAttribute("stroke", s.color.toCss());
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rn.setAttribute("stroke-opacity", s.color.a);
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rn.setAttribute("stroke-width", s.width);
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rn.setAttribute("stroke-linecap", s.cap);
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if(typeof s.join == "number"){
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rn.setAttribute("stroke-linejoin", "miter");
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rn.setAttribute("stroke-miterlimit", s.join);
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}else{
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rn.setAttribute("stroke-linejoin", s.join);
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}
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var da = s.style.toLowerCase();
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if(da in dojox.gfx.svg.dasharray){
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da = dojox.gfx.svg.dasharray[da];
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}
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if(da instanceof Array){
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da = dojo._toArray(da);
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for(var i = 0; i < da.length; ++i){
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da[i] *= s.width;
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}
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if(s.cap != "butt"){
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for(var i = 0; i < da.length; i += 2){
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da[i] -= s.width;
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if(da[i] < 1){ da[i] = 1; }
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}
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for(var i = 1; i < da.length; i += 2){
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da[i] += s.width;
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}
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}
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da = da.join(",");
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}
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rn.setAttribute("stroke-dasharray", da);
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rn.setAttribute("dojoGfxStrokeStyle", s.style);
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}
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return this; // self
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},
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_getParentSurface: function(){
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var surface = this.parent;
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for(; surface && !(surface instanceof dojox.gfx.Surface); surface = surface.parent);
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return surface;
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},
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_setFillObject: function(f, nodeType){
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var svgns = dojox.gfx.svg.xmlns.svg;
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this.fillStyle = f;
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var surface = this._getParentSurface(),
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defs = surface.defNode,
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fill = this.rawNode.getAttribute("fill"),
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ref = dojox.gfx.svg.getRef(fill);
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if(ref){
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fill = ref;
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if(fill.tagName.toLowerCase() != nodeType.toLowerCase()){
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var id = fill.id;
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fill.parentNode.removeChild(fill);
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fill = document.createElementNS(svgns, nodeType);
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fill.setAttribute("id", id);
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defs.appendChild(fill);
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}else{
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while(fill.childNodes.length){
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fill.removeChild(fill.lastChild);
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}
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}
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}else{
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fill = document.createElementNS(svgns, nodeType);
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fill.setAttribute("id", dojox.gfx._base._getUniqueId());
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defs.appendChild(fill);
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}
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if(nodeType == "pattern"){
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fill.setAttribute("patternUnits", "userSpaceOnUse");
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var img = document.createElementNS(svgns, "image");
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img.setAttribute("x", 0);
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img.setAttribute("y", 0);
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img.setAttribute("width", f.width .toFixed(8));
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img.setAttribute("height", f.height.toFixed(8));
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img.setAttributeNS(dojox.gfx.svg.xmlns.xlink, "href", f.src);
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fill.appendChild(img);
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}else{
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fill.setAttribute("gradientUnits", "userSpaceOnUse");
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for(var i = 0; i < f.colors.length; ++i){
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var c = f.colors[i], t = document.createElementNS(svgns, "stop"),
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cc = c.color = dojox.gfx.normalizeColor(c.color);
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t.setAttribute("offset", c.offset.toFixed(8));
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t.setAttribute("stop-color", cc.toCss());
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t.setAttribute("stop-opacity", cc.a);
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fill.appendChild(t);
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}
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}
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this.rawNode.setAttribute("fill", "url(#" + fill.getAttribute("id") +")");
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this.rawNode.removeAttribute("fill-opacity");
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this.rawNode.setAttribute("fill-rule", "evenodd");
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return fill;
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},
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_applyTransform: function() {
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var matrix = this.matrix;
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if(matrix){
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var tm = this.matrix;
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this.rawNode.setAttribute("transform", "matrix(" +
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tm.xx.toFixed(8) + "," + tm.yx.toFixed(8) + "," +
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tm.xy.toFixed(8) + "," + tm.yy.toFixed(8) + "," +
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tm.dx.toFixed(8) + "," + tm.dy.toFixed(8) + ")");
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}else{
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this.rawNode.removeAttribute("transform");
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}
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return this;
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},
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setRawNode: function(rawNode){
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// summary:
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// assigns and clears the underlying node that will represent this
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// shape. Once set, transforms, gradients, etc, can be applied.
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// (no fill & stroke by default)
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var r = this.rawNode = rawNode;
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r.setAttribute("fill", "none");
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r.setAttribute("fill-opacity", 0);
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r.setAttribute("stroke", "none");
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r.setAttribute("stroke-opacity", 0);
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r.setAttribute("stroke-width", 1);
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r.setAttribute("stroke-linecap", "butt");
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r.setAttribute("stroke-linejoin", "miter");
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r.setAttribute("stroke-miterlimit", 4);
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},
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setShape: function(newShape){
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// summary: sets a shape object (SVG)
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// newShape: Object: a shape object
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// (see dojox.gfx.defaultPath,
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// dojox.gfx.defaultPolyline,
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// dojox.gfx.defaultRect,
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// dojox.gfx.defaultEllipse,
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// dojox.gfx.defaultCircle,
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// dojox.gfx.defaultLine,
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// or dojox.gfx.defaultImage)
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this.shape = dojox.gfx.makeParameters(this.shape, newShape);
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for(var i in this.shape){
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if(i != "type"){ this.rawNode.setAttribute(i, this.shape[i]); }
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}
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return this; // self
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},
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// move family
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_moveToFront: function(){
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// summary: moves a shape to front of its parent's list of shapes (SVG)
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this.rawNode.parentNode.appendChild(this.rawNode);
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return this; // self
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},
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_moveToBack: function(){
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// summary: moves a shape to back of its parent's list of shapes (SVG)
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this.rawNode.parentNode.insertBefore(this.rawNode, this.rawNode.parentNode.firstChild);
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return this; // self
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}
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});
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dojo.declare("dojox.gfx.Group", dojox.gfx.Shape, {
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// summary: a group shape (SVG), which can be used
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// to logically group shapes (e.g, to propagate matricies)
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constructor: function(){
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dojox.gfx.svg.Container._init.call(this);
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},
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setRawNode: function(rawNode){
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// summary: sets a raw SVG node to be used by this shape
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// rawNode: Node: an SVG node
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this.rawNode = rawNode;
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}
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});
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dojox.gfx.Group.nodeType = "g";
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dojo.declare("dojox.gfx.Rect", dojox.gfx.shape.Rect, {
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// summary: a rectangle shape (SVG)
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setShape: function(newShape){
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// summary: sets a rectangle shape object (SVG)
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// newShape: Object: a rectangle shape object
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this.shape = dojox.gfx.makeParameters(this.shape, newShape);
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this.bbox = null;
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for(var i in this.shape){
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if(i != "type" && i != "r"){ this.rawNode.setAttribute(i, this.shape[i]); }
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}
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if(this.shape.r){
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this.rawNode.setAttribute("ry", this.shape.r);
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this.rawNode.setAttribute("rx", this.shape.r);
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}
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return this; // self
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}
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});
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dojox.gfx.Rect.nodeType = "rect";
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dojox.gfx.Ellipse = dojox.gfx.shape.Ellipse;
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dojox.gfx.Ellipse.nodeType = "ellipse";
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dojox.gfx.Circle = dojox.gfx.shape.Circle;
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dojox.gfx.Circle.nodeType = "circle";
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dojox.gfx.Line = dojox.gfx.shape.Line;
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dojox.gfx.Line.nodeType = "line";
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dojo.declare("dojox.gfx.Polyline", dojox.gfx.shape.Polyline, {
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// summary: a polyline/polygon shape (SVG)
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setShape: function(points, closed){
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// summary: sets a polyline/polygon shape object (SVG)
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// points: Object: a polyline/polygon shape object
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if(points && points instanceof Array){
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// branch
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// points: Array: an array of points
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this.shape = dojox.gfx.makeParameters(this.shape, { points: points });
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if(closed && this.shape.points.length){
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this.shape.points.push(this.shape.points[0]);
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}
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}else{
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this.shape = dojox.gfx.makeParameters(this.shape, points);
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}
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this.box = null;
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var attr = [], p = this.shape.points;
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for(var i = 0; i < p.length; ++i){
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if(typeof p[i] == "number"){
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attr.push(p[i].toFixed(8));
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}else{
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attr.push(p[i].x.toFixed(8));
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attr.push(p[i].y.toFixed(8));
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}
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}
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this.rawNode.setAttribute("points", attr.join(" "));
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return this; // self
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}
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});
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dojox.gfx.Polyline.nodeType = "polyline";
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dojo.declare("dojox.gfx.Image", dojox.gfx.shape.Image, {
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// summary: an image (SVG)
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setShape: function(newShape){
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// summary: sets an image shape object (SVG)
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// newShape: Object: an image shape object
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this.shape = dojox.gfx.makeParameters(this.shape, newShape);
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this.bbox = null;
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var rawNode = this.rawNode;
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for(var i in this.shape){
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if(i != "type" && i != "src"){ rawNode.setAttribute(i, this.shape[i]); }
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}
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rawNode.setAttributeNS(dojox.gfx.svg.xmlns.xlink, "href", this.shape.src);
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return this; // self
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}
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});
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dojox.gfx.Image.nodeType = "image";
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dojo.declare("dojox.gfx.Text", dojox.gfx.shape.Text, {
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// summary: an anchored text (SVG)
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setShape: function(newShape){
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// summary: sets a text shape object (SVG)
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// newShape: Object: a text shape object
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this.shape = dojox.gfx.makeParameters(this.shape, newShape);
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this.bbox = null;
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var r = this.rawNode, s = this.shape;
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r.setAttribute("x", s.x);
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r.setAttribute("y", s.y);
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r.setAttribute("text-anchor", s.align);
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r.setAttribute("text-decoration", s.decoration);
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r.setAttribute("rotate", s.rotated ? 90 : 0);
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r.setAttribute("kerning", s.kerning ? "auto" : 0);
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r.setAttribute("text-rendering", "optimizeLegibility");
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r.textContent = s.text;
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return this; // self
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},
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getTextWidth: function(){
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// summary: get the text width in pixels
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var rawNode = this.rawNode,
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oldParent = rawNode.parentNode,
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_measurementNode = rawNode.cloneNode(true);
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_measurementNode.style.visibility = "hidden";
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// solution to the "orphan issue" in FF
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var _width = 0, _text = _measurementNode.firstChild.nodeValue;
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oldParent.appendChild(_measurementNode);
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// solution to the "orphan issue" in Opera
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// (nodeValue == "" hangs firefox)
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if(_text!=""){
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while(!_width){
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_width = parseInt(_measurementNode.getBBox().width);
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}
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}
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oldParent.removeChild(_measurementNode);
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return _width;
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}
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});
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dojox.gfx.Text.nodeType = "text";
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dojo.declare("dojox.gfx.Path", dojox.gfx.path.Path, {
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// summary: a path shape (SVG)
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_updateWithSegment: function(segment){
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// summary: updates the bounding box of path with new segment
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// segment: Object: a segment
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dojox.gfx.Path.superclass._updateWithSegment.apply(this, arguments);
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if(typeof(this.shape.path) == "string"){
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this.rawNode.setAttribute("d", this.shape.path);
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}
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},
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setShape: function(newShape){
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// summary: forms a path using a shape (SVG)
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// newShape: Object: an SVG path string or a path object (see dojox.gfx.defaultPath)
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dojox.gfx.Path.superclass.setShape.apply(this, arguments);
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this.rawNode.setAttribute("d", this.shape.path);
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return this; // self
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}
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});
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dojox.gfx.Path.nodeType = "path";
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dojo.declare("dojox.gfx.TextPath", dojox.gfx.path.TextPath, {
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// summary: a textpath shape (SVG)
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_updateWithSegment: function(segment){
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// summary: updates the bounding box of path with new segment
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// segment: Object: a segment
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dojox.gfx.Path.superclass._updateWithSegment.apply(this, arguments);
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this._setTextPath();
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},
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setShape: function(newShape){
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// summary: forms a path using a shape (SVG)
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// newShape: Object: an SVG path string or a path object (see dojox.gfx.defaultPath)
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dojox.gfx.Path.superclass.setShape.apply(this, arguments);
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this._setTextPath();
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return this; // self
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},
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_setTextPath: function(){
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if(typeof this.shape.path != "string"){ return; }
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var r = this.rawNode;
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if(!r.firstChild){
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var tp = document.createElementNS(dojox.gfx.svg.xmlns.svg, "textPath"),
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tx = document.createTextNode("");
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tp.appendChild(tx);
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r.appendChild(tp);
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}
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var ref = r.firstChild.getAttributeNS(dojox.gfx.svg.xmlns.xlink, "href"),
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path = ref && dojox.gfx.svg.getRef(ref);
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if(!path){
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var surface = this._getParentSurface();
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if(surface){
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var defs = surface.defNode;
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path = document.createElementNS(dojox.gfx.svg.xmlns.svg, "path");
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var id = dojox.gfx._base._getUniqueId();
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path.setAttribute("id", id);
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defs.appendChild(path);
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|
r.firstChild.setAttributeNS(dojox.gfx.svg.xmlns.xlink, "href", "#" + id);
|
|
}
|
|
}
|
|
if(path){
|
|
path.setAttribute("d", this.shape.path);
|
|
}
|
|
},
|
|
_setText: function(){
|
|
var r = this.rawNode;
|
|
if(!r.firstChild){
|
|
var tp = document.createElementNS(dojox.gfx.svg.xmlns.svg, "textPath"),
|
|
tx = document.createTextNode("");
|
|
tp.appendChild(tx);
|
|
r.appendChild(tp);
|
|
}
|
|
r = r.firstChild;
|
|
var t = this.text;
|
|
r.setAttribute("alignment-baseline", "middle");
|
|
switch(t.align){
|
|
case "middle":
|
|
r.setAttribute("text-anchor", "middle");
|
|
r.setAttribute("startOffset", "50%");
|
|
break;
|
|
case "end":
|
|
r.setAttribute("text-anchor", "end");
|
|
r.setAttribute("startOffset", "100%");
|
|
break;
|
|
default:
|
|
r.setAttribute("text-anchor", "start");
|
|
r.setAttribute("startOffset", "0%");
|
|
break;
|
|
}
|
|
//r.parentNode.setAttribute("alignment-baseline", "central");
|
|
//r.setAttribute("dominant-baseline", "central");
|
|
r.setAttribute("baseline-shift", "0.5ex");
|
|
r.setAttribute("text-decoration", t.decoration);
|
|
r.setAttribute("rotate", t.rotated ? 90 : 0);
|
|
r.setAttribute("kerning", t.kerning ? "auto" : 0);
|
|
r.firstChild.data = t.text;
|
|
}
|
|
});
|
|
dojox.gfx.TextPath.nodeType = "text";
|
|
|
|
dojo.declare("dojox.gfx.Surface", dojox.gfx.shape.Surface, {
|
|
// summary: a surface object to be used for drawings (SVG)
|
|
constructor: function(){
|
|
dojox.gfx.svg.Container._init.call(this);
|
|
},
|
|
destroy: function(){
|
|
this.defNode = null; // release the external reference
|
|
this.inherited(arguments);
|
|
},
|
|
setDimensions: function(width, height){
|
|
// summary: sets the width and height of the rawNode
|
|
// width: String: width of surface, e.g., "100px"
|
|
// height: String: height of surface, e.g., "100px"
|
|
if(!this.rawNode){ return this; }
|
|
this.rawNode.setAttribute("width", width);
|
|
this.rawNode.setAttribute("height", height);
|
|
return this; // self
|
|
},
|
|
getDimensions: function(){
|
|
// summary: returns an object with properties "width" and "height"
|
|
return this.rawNode ? {width: this.rawNode.getAttribute("width"), height: this.rawNode.getAttribute("height")} : null; // Object
|
|
}
|
|
});
|
|
|
|
dojox.gfx.createSurface = function(parentNode, width, height){
|
|
// summary: creates a surface (SVG)
|
|
// parentNode: Node: a parent node
|
|
// width: String: width of surface, e.g., "100px"
|
|
// height: String: height of surface, e.g., "100px"
|
|
|
|
var s = new dojox.gfx.Surface();
|
|
s.rawNode = document.createElementNS(dojox.gfx.svg.xmlns.svg, "svg");
|
|
s.rawNode.setAttribute("width", width);
|
|
s.rawNode.setAttribute("height", height);
|
|
|
|
var defNode = document.createElementNS(dojox.gfx.svg.xmlns.svg, "defs");
|
|
s.rawNode.appendChild(defNode);
|
|
s.defNode = defNode;
|
|
|
|
s._parent = dojo.byId(parentNode);
|
|
s._parent.appendChild(s.rawNode);
|
|
|
|
return s; // dojox.gfx.Surface
|
|
};
|
|
|
|
// Extenders
|
|
|
|
dojox.gfx.svg.Font = {
|
|
_setFont: function(){
|
|
// summary: sets a font object (SVG)
|
|
var f = this.fontStyle;
|
|
// next line doesn't work in Firefox 2 or Opera 9
|
|
//this.rawNode.setAttribute("font", dojox.gfx.makeFontString(this.fontStyle));
|
|
this.rawNode.setAttribute("font-style", f.style);
|
|
this.rawNode.setAttribute("font-variant", f.variant);
|
|
this.rawNode.setAttribute("font-weight", f.weight);
|
|
this.rawNode.setAttribute("font-size", f.size);
|
|
this.rawNode.setAttribute("font-family", f.family);
|
|
}
|
|
};
|
|
|
|
dojox.gfx.svg.Container = {
|
|
_init: function(){
|
|
dojox.gfx.shape.Container._init.call(this);
|
|
},
|
|
add: function(shape){
|
|
// summary: adds a shape to a group/surface
|
|
// shape: dojox.gfx.Shape: an VML shape object
|
|
if(this != shape.getParent()){
|
|
this.rawNode.appendChild(shape.rawNode);
|
|
//dojox.gfx.Group.superclass.add.apply(this, arguments);
|
|
//this.inherited(arguments);
|
|
dojox.gfx.shape.Container.add.apply(this, arguments);
|
|
}
|
|
return this; // self
|
|
},
|
|
remove: function(shape, silently){
|
|
// summary: remove a shape from a group/surface
|
|
// shape: dojox.gfx.Shape: an VML shape object
|
|
// silently: Boolean?: if true, regenerate a picture
|
|
if(this == shape.getParent()){
|
|
if(this.rawNode == shape.rawNode.parentNode){
|
|
this.rawNode.removeChild(shape.rawNode);
|
|
}
|
|
//dojox.gfx.Group.superclass.remove.apply(this, arguments);
|
|
//this.inherited(arguments);
|
|
dojox.gfx.shape.Container.remove.apply(this, arguments);
|
|
}
|
|
return this; // self
|
|
},
|
|
clear: function(){
|
|
// summary: removes all shapes from a group/surface
|
|
var r = this.rawNode;
|
|
while(r.lastChild){
|
|
r.removeChild(r.lastChild);
|
|
}
|
|
var d = this.defNode;
|
|
if(d){
|
|
while(d.lastChild){
|
|
d.removeChild(d.lastChild);
|
|
}
|
|
r.appendChild(d);
|
|
}
|
|
//return this.inherited(arguments); // self
|
|
return dojox.gfx.shape.Container.clear.apply(this, arguments);
|
|
},
|
|
_moveChildToFront: dojox.gfx.shape.Container._moveChildToFront,
|
|
_moveChildToBack: dojox.gfx.shape.Container._moveChildToBack
|
|
};
|
|
|
|
dojo.mixin(dojox.gfx.shape.Creator, {
|
|
// summary: SVG shape creators
|
|
createObject: function(shapeType, rawShape){
|
|
// summary: creates an instance of the passed shapeType class
|
|
// shapeType: Function: a class constructor to create an instance of
|
|
// rawShape: Object: properties to be passed in to the classes "setShape" method
|
|
if(!this.rawNode){ return null; }
|
|
var shape = new shapeType(),
|
|
node = document.createElementNS(dojox.gfx.svg.xmlns.svg, shapeType.nodeType);
|
|
shape.setRawNode(node);
|
|
this.rawNode.appendChild(node);
|
|
shape.setShape(rawShape);
|
|
this.add(shape);
|
|
return shape; // dojox.gfx.Shape
|
|
}
|
|
});
|
|
|
|
dojo.extend(dojox.gfx.Text, dojox.gfx.svg.Font);
|
|
dojo.extend(dojox.gfx.TextPath, dojox.gfx.svg.Font);
|
|
|
|
dojo.extend(dojox.gfx.Group, dojox.gfx.svg.Container);
|
|
dojo.extend(dojox.gfx.Group, dojox.gfx.shape.Creator);
|
|
|
|
dojo.extend(dojox.gfx.Surface, dojox.gfx.svg.Container);
|
|
dojo.extend(dojox.gfx.Surface, dojox.gfx.shape.Creator);
|