dojo.require("dojox.gfx.svg"); dojo.experimental("dojox.gfx.svg_attach"); (function(){ dojox.gfx.attachNode = function(node){ // summary: creates a shape from a Node // node: Node: an SVG node if(!node) return null; var s = null; switch(node.tagName.toLowerCase()){ case dojox.gfx.Rect.nodeType: s = new dojox.gfx.Rect(node); attachRect(s); break; case dojox.gfx.Ellipse.nodeType: s = new dojox.gfx.Ellipse(node); attachShape(s, dojox.gfx.defaultEllipse); break; case dojox.gfx.Polyline.nodeType: s = new dojox.gfx.Polyline(node); attachShape(s, dojox.gfx.defaultPolyline); break; case dojox.gfx.Path.nodeType: s = new dojox.gfx.Path(node); attachShape(s, dojox.gfx.defaultPath); break; case dojox.gfx.Circle.nodeType: s = new dojox.gfx.Circle(node); attachShape(s, dojox.gfx.defaultCircle); break; case dojox.gfx.Line.nodeType: s = new dojox.gfx.Line(node); attachShape(s, dojox.gfx.defaultLine); break; case dojox.gfx.Image.nodeType: s = new dojox.gfx.Image(node); attachShape(s, dojox.gfx.defaultImage); break; case dojox.gfx.Text.nodeType: var t = node.getElementsByTagName("textPath"); if(t && t.length){ s = new dojox.gfx.TextPath(node); attachShape(s, dojox.gfx.defaultPath); attachTextPath(s); }else{ s = new dojox.gfx.Text(node); attachText(s); } attachFont(s); break; default: //console.debug("FATAL ERROR! tagName = " + node.tagName); return null; } if(!(s instanceof dojox.gfx.Image)){ attachFill(s); attachStroke(s); } attachTransform(s); return s; // dojox.gfx.Shape }; dojox.gfx.attachSurface = function(node){ // summary: creates a surface from a Node // node: Node: an SVG node var s = new dojox.gfx.Surface(); s.rawNode = node; var def_elems = node.getElementsByTagName("defs"); if(def_elems.length == 0){ return null; // dojox.gfx.Surface } s.defNode = def_elems[0]; return s; // dojox.gfx.Surface }; var attachFill = function(object){ // summary: deduces a fill style from a node. // object: dojox.gfx.Shape: an SVG shape var fill = object.rawNode.getAttribute("fill"); if(fill == "none"){ object.fillStyle = null; return; } var fillStyle = null, gradient = dojox.gfx.svg.getRef(fill); if(gradient){ switch(gradient.tagName.toLowerCase()){ case "lineargradient": fillStyle = _getGradient(dojox.gfx.defaultLinearGradient, gradient); dojo.forEach(["x1", "y1", "x2", "y2"], function(x){ fillStyle[x] = gradient.getAttribute(x); }); break; case "radialgradient": fillStyle = _getGradient(dojox.gfx.defaultRadialGradient, gradient); dojo.forEach(["cx", "cy", "r"], function(x){ fillStyle[x] = gradient.getAttribute(x); }); fillStyle.cx = gradient.getAttribute("cx"); fillStyle.cy = gradient.getAttribute("cy"); fillStyle.r = gradient.getAttribute("r"); break; case "pattern": fillStyle = dojo.lang.shallowCopy(dojox.gfx.defaultPattern, true); dojo.forEach(["x", "y", "width", "height"], function(x){ fillStyle[x] = gradient.getAttribute(x); }); fillStyle.src = gradient.firstChild.getAttributeNS(dojox.gfx.svg.xmlns.xlink, "href"); break; } }else{ fillStyle = new dojo.Color(fill); var opacity = object.rawNode.getAttribute("fill-opacity"); if(opacity != null){ fillStyle.a = opacity; } } object.fillStyle = fillStyle; }; var _getGradient = function(defaultGradient, gradient){ var fillStyle = dojo.clone(defaultGradient); fillStyle.colors = []; for(var i = 0; i < gradient.childNodes.length; ++i){ fillStyle.colors.push({ offset: gradient.childNodes[i].getAttribute("offset"), color: new dojo.Color(gradient.childNodes[i].getAttribute("stop-color")) }); } return fillStyle; }; var attachStroke = function(object){ // summary: deduces a stroke style from a node. // object: dojox.gfx.Shape: an SVG shape var rawNode = object.rawNode, stroke = rawNode.getAttribute("stroke"); if(stroke == null || stroke == "none"){ object.strokeStyle = null; return; } var strokeStyle = object.strokeStyle = dojo.clone(dojox.gfx.defaultStroke); var color = new dojo.Color(stroke); if(color){ strokeStyle.color = color; strokeStyle.color.a = rawNode.getAttribute("stroke-opacity"); strokeStyle.width = rawNode.getAttribute("stroke-width"); strokeStyle.cap = rawNode.getAttribute("stroke-linecap"); strokeStyle.join = rawNode.getAttribute("stroke-linejoin"); if(strokeStyle.join == "miter"){ strokeStyle.join = rawNode.getAttribute("stroke-miterlimit"); } strokeStyle.style = rawNode.getAttribute("dojoGfxStrokeStyle"); } }; var attachTransform = function(object){ // summary: deduces a transformation matrix from a node. // object: dojox.gfx.Shape: an SVG shape var matrix = object.rawNode.getAttribute("transform"); if(matrix.match(/^matrix\(.+\)$/)){ var t = matrix.slice(7, -1).split(","); object.matrix = dojox.gfx.matrix.normalize({ xx: parseFloat(t[0]), xy: parseFloat(t[2]), yx: parseFloat(t[1]), yy: parseFloat(t[3]), dx: parseFloat(t[4]), dy: parseFloat(t[5]) }); }else{ object.matrix = null; } }; var attachFont = function(object){ // summary: deduces a font style from a Node. // object: dojox.gfx.Shape: an SVG shape var fontStyle = object.fontStyle = dojo.clone(dojox.gfx.defaultFont), r = object.rawNode; fontStyle.style = r.getAttribute("font-style"); fontStyle.variant = r.getAttribute("font-variant"); fontStyle.weight = r.getAttribute("font-weight"); fontStyle.size = r.getAttribute("font-size"); fontStyle.family = r.getAttribute("font-family"); }; var attachShape = function(object, def){ // summary: builds a shape from a node. // object: dojox.gfx.Shape: an SVG shape // def: Object: a default shape template var shape = object.shape = dojo.clone(def), r = object.rawNode; for(var i in shape) { shape[i] = r.getAttribute(i); } }; var attachRect = function(object){ // summary: builds a rectangle shape from a node. // object: dojox.gfx.Shape: an SVG shape attachShape(object, dojox.gfx.defaultRect); object.shape.r = Math.min(object.rawNode.getAttribute("rx"), object.rawNode.getAttribute("ry")); }; var attachText = function(object){ // summary: builds a text shape from a node. // object: dojox.gfx.Shape: an SVG shape var shape = object.shape = dojo.clone(dojox.gfx.defaultText), r = object.rawNode; shape.x = r.getAttribute("x"); shape.y = r.getAttribute("y"); shape.align = r.getAttribute("text-anchor"); shape.decoration = r.getAttribute("text-decoration"); shape.rotated = parseFloat(r.getAttribute("rotate")) != 0; shape.kerning = r.getAttribute("kerning") == "auto"; shape.text = r.firstChild.nodeValue; }; var attachTextPath = function(object){ // summary: builds a textpath shape from a node. // object: dojox.gfx.Shape: an SVG shape var shape = object.shape = dojo.clone(dojox.gfx.defaultTextPath), r = object.rawNode; shape.align = r.getAttribute("text-anchor"); shape.decoration = r.getAttribute("text-decoration"); shape.rotated = parseFloat(r.getAttribute("rotate")) != 0; shape.kerning = r.getAttribute("kerning") == "auto"; shape.text = r.firstChild.nodeValue; }; })();