[483] | 1 | define(["dojo/_base/kernel", "dojo/_base/lang", "dojo/_base/array","dojo/_base/Color", "./_base","./svg","./matrix"], |
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| 2 | function(kernel, lang, arr, Color, g, svg, Matrix){ |
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| 3 | |
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| 4 | kernel.experimental("dojox.gfx.svg_attach"); |
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| 5 | |
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| 6 | svg.attachNode = function(node){ |
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| 7 | // summary: |
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| 8 | // creates a shape from a Node |
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| 9 | // node: Node |
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| 10 | // an SVG node |
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| 11 | if(!node){ |
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| 12 | return null; |
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| 13 | } |
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| 14 | var s = null; |
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| 15 | switch(node.tagName.toLowerCase()){ |
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| 16 | case svg.Rect.nodeType: |
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| 17 | s = new svg.Rect(node); |
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| 18 | attachRect(s); |
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| 19 | break; |
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| 20 | case svg.Ellipse.nodeType: |
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| 21 | s = new svg.Ellipse(node); |
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| 22 | attachShape(s, g.defaultEllipse); |
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| 23 | break; |
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| 24 | case svg.Polyline.nodeType: |
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| 25 | s = new svg.Polyline(node); |
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| 26 | attachShape(s, g.defaultPolyline); |
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| 27 | break; |
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| 28 | case svg.Path.nodeType: |
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| 29 | s = new svg.Path(node); |
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| 30 | attachShape(s, g.defaultPath); |
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| 31 | break; |
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| 32 | case svg.Circle.nodeType: |
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| 33 | s = new svg.Circle(node); |
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| 34 | attachShape(s, g.defaultCircle); |
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| 35 | break; |
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| 36 | case svg.Line.nodeType: |
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| 37 | s = new svg.Line(node); |
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| 38 | attachShape(s, g.defaultLine); |
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| 39 | break; |
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| 40 | case svg.Image.nodeType: |
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| 41 | s = new svg.Image(node); |
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| 42 | attachShape(s, g.defaultImage); |
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| 43 | break; |
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| 44 | case svg.Text.nodeType: |
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| 45 | var t = node.getElementsByTagName("textPath"); |
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| 46 | if(t && t.length){ |
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| 47 | s = new svg.TextPath(node); |
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| 48 | attachShape(s, g.defaultPath); |
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| 49 | attachTextPath(s); |
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| 50 | }else{ |
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| 51 | s = new svg.Text(node); |
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| 52 | attachText(s); |
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| 53 | } |
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| 54 | attachFont(s); |
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| 55 | break; |
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| 56 | default: |
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| 57 | //console.debug("FATAL ERROR! tagName = " + node.tagName); |
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| 58 | return null; |
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| 59 | } |
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| 60 | if(!(s instanceof svg.Image)){ |
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| 61 | attachFill(s); |
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| 62 | attachStroke(s); |
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| 63 | } |
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| 64 | attachTransform(s); |
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| 65 | return s; // dojox/gfx/shape.Shape |
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| 66 | }; |
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| 67 | |
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| 68 | svg.attachSurface = function(node){ |
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| 69 | // summary: |
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| 70 | // creates a surface from a Node |
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| 71 | // node: Node |
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| 72 | // an SVG node |
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| 73 | var s = new svg.Surface(); |
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| 74 | s.rawNode = node; |
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| 75 | var def_elems = node.getElementsByTagName("defs"); |
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| 76 | if(def_elems.length == 0){ |
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| 77 | return null; // dojox/gfx.Surface |
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| 78 | } |
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| 79 | s.defNode = def_elems[0]; |
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| 80 | return s; // dojox/gfx.Surface |
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| 81 | }; |
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| 82 | |
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| 83 | function attachFill(object){ |
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| 84 | // summary: |
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| 85 | // deduces a fill style from a node. |
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| 86 | // object: dojox/gfx/shape.Shape |
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| 87 | // an SVG shape |
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| 88 | var fill = object.rawNode.getAttribute("fill"); |
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| 89 | if(fill == "none"){ |
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| 90 | object.fillStyle = null; |
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| 91 | return; |
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| 92 | } |
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| 93 | var fillStyle = null, gradient = svg.getRef(fill); |
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| 94 | if(gradient){ |
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| 95 | switch(gradient.tagName.toLowerCase()){ |
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| 96 | case "lineargradient": |
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| 97 | fillStyle = _getGradient(g.defaultLinearGradient, gradient); |
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| 98 | arr.forEach(["x1", "y1", "x2", "y2"], function(x){ |
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| 99 | fillStyle[x] = gradient.getAttribute(x); |
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| 100 | }); |
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| 101 | break; |
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| 102 | case "radialgradient": |
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| 103 | fillStyle = _getGradient(g.defaultRadialGradient, gradient); |
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| 104 | arr.forEach(["cx", "cy", "r"], function(x){ |
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| 105 | fillStyle[x] = gradient.getAttribute(x); |
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| 106 | }); |
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| 107 | fillStyle.cx = gradient.getAttribute("cx"); |
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| 108 | fillStyle.cy = gradient.getAttribute("cy"); |
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| 109 | fillStyle.r = gradient.getAttribute("r"); |
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| 110 | break; |
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| 111 | case "pattern": |
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| 112 | fillStyle = lang.clone(g.defaultPattern); |
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| 113 | arr.forEach(["x", "y", "width", "height"], function(x){ |
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| 114 | fillStyle[x] = gradient.getAttribute(x); |
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| 115 | }); |
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| 116 | fillStyle.src = gradient.firstChild.getAttributeNS(svg.xmlns.xlink, "href"); |
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| 117 | break; |
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| 118 | } |
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| 119 | }else{ |
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| 120 | fillStyle = new Color(fill); |
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| 121 | var opacity = object.rawNode.getAttribute("fill-opacity"); |
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| 122 | if(opacity != null){ fillStyle.a = opacity; } |
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| 123 | } |
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| 124 | object.fillStyle = fillStyle; |
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| 125 | } |
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| 126 | |
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| 127 | function _getGradient(defaultGradient, gradient){ |
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| 128 | var fillStyle = lang.clone(defaultGradient); |
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| 129 | fillStyle.colors = []; |
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| 130 | for(var i = 0; i < gradient.childNodes.length; ++i){ |
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| 131 | fillStyle.colors.push({ |
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| 132 | offset: gradient.childNodes[i].getAttribute("offset"), |
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| 133 | color: new Color(gradient.childNodes[i].getAttribute("stop-color")) |
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| 134 | }); |
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| 135 | } |
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| 136 | return fillStyle; |
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| 137 | } |
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| 138 | |
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| 139 | function attachStroke(object){ |
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| 140 | // summary: |
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| 141 | // deduces a stroke style from a node. |
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| 142 | // object: dojox/gfx/shape.Shape |
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| 143 | // an SVG shape |
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| 144 | var rawNode = object.rawNode, stroke = rawNode.getAttribute("stroke"); |
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| 145 | if(stroke == null || stroke == "none"){ |
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| 146 | object.strokeStyle = null; |
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| 147 | return; |
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| 148 | } |
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| 149 | var strokeStyle = object.strokeStyle = lang.clone(g.defaultStroke); |
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| 150 | var color = new Color(stroke); |
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| 151 | if(color){ |
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| 152 | strokeStyle.color = color; |
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| 153 | strokeStyle.color.a = rawNode.getAttribute("stroke-opacity"); |
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| 154 | strokeStyle.width = rawNode.getAttribute("stroke-width"); |
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| 155 | strokeStyle.cap = rawNode.getAttribute("stroke-linecap"); |
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| 156 | strokeStyle.join = rawNode.getAttribute("stroke-linejoin"); |
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| 157 | if(strokeStyle.join == "miter"){ |
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| 158 | strokeStyle.join = rawNode.getAttribute("stroke-miterlimit"); |
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| 159 | } |
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| 160 | strokeStyle.style = rawNode.getAttribute("dojoGfxStrokeStyle"); |
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| 161 | } |
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| 162 | } |
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| 163 | |
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| 164 | function attachTransform(object){ |
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| 165 | // summary: |
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| 166 | // deduces a transformation matrix from a node. |
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| 167 | // object: dojox/gfx/shape.Shape |
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| 168 | // an SVG shape |
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| 169 | var matrix = object.rawNode.getAttribute("transform"); |
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| 170 | if(matrix.match(/^matrix\(.+\)$/)){ |
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| 171 | var t = matrix.slice(7, -1).split(","); |
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| 172 | object.matrix = Matrix.normalize({ |
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| 173 | xx: parseFloat(t[0]), xy: parseFloat(t[2]), |
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| 174 | yx: parseFloat(t[1]), yy: parseFloat(t[3]), |
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| 175 | dx: parseFloat(t[4]), dy: parseFloat(t[5]) |
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| 176 | }); |
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| 177 | }else{ |
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| 178 | object.matrix = null; |
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| 179 | } |
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| 180 | } |
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| 181 | |
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| 182 | function attachFont(object){ |
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| 183 | // summary: |
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| 184 | // deduces a font style from a Node. |
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| 185 | // object: dojox/gfx/shape.Shape |
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| 186 | // an SVG shape |
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| 187 | var fontStyle = object.fontStyle = lang.clone(g.defaultFont), |
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| 188 | r = object.rawNode; |
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| 189 | fontStyle.style = r.getAttribute("font-style"); |
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| 190 | fontStyle.variant = r.getAttribute("font-variant"); |
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| 191 | fontStyle.weight = r.getAttribute("font-weight"); |
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| 192 | fontStyle.size = r.getAttribute("font-size"); |
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| 193 | fontStyle.family = r.getAttribute("font-family"); |
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| 194 | } |
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| 195 | |
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| 196 | function attachShape(object, def){ |
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| 197 | // summary: |
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| 198 | // builds a shape from a node. |
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| 199 | // object: dojox/gfx/shape.Shape |
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| 200 | // an SVG shape |
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| 201 | // def: Object |
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| 202 | // a default shape template |
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| 203 | var shape = object.shape = lang.clone(def), r = object.rawNode; |
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| 204 | for(var i in shape) { |
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| 205 | shape[i] = r.getAttribute(i); |
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| 206 | } |
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| 207 | } |
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| 208 | |
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| 209 | function attachRect(object){ |
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| 210 | // summary: |
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| 211 | // builds a rectangle shape from a node. |
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| 212 | // object: dojox/gfx/shape.Shape |
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| 213 | // an SVG shape |
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| 214 | attachShape(object, g.defaultRect); |
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| 215 | object.shape.r = Math.min(object.rawNode.getAttribute("rx"), object.rawNode.getAttribute("ry")); |
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| 216 | } |
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| 217 | |
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| 218 | function attachText(object){ |
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| 219 | // summary: |
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| 220 | // builds a text shape from a node. |
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| 221 | // object: dojox/gfx/shape.Shape |
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| 222 | // an SVG shape |
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| 223 | var shape = object.shape = lang.clone(g.defaultText), |
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| 224 | r = object.rawNode; |
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| 225 | shape.x = r.getAttribute("x"); |
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| 226 | shape.y = r.getAttribute("y"); |
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| 227 | shape.align = r.getAttribute("text-anchor"); |
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| 228 | shape.decoration = r.getAttribute("text-decoration"); |
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| 229 | shape.rotated = parseFloat(r.getAttribute("rotate")) != 0; |
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| 230 | shape.kerning = r.getAttribute("kerning") == "auto"; |
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| 231 | shape.text = r.firstChild.nodeValue; |
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| 232 | } |
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| 233 | |
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| 234 | function attachTextPath(object){ |
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| 235 | // summary: |
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| 236 | // builds a textpath shape from a node. |
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| 237 | // object: dojox/gfx/shape.Shape |
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| 238 | // an SVG shape |
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| 239 | var shape = object.shape = lang.clone(g.defaultTextPath), |
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| 240 | r = object.rawNode; |
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| 241 | shape.align = r.getAttribute("text-anchor"); |
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| 242 | shape.decoration = r.getAttribute("text-decoration"); |
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| 243 | shape.rotated = parseFloat(r.getAttribute("rotate")) != 0; |
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| 244 | shape.kerning = r.getAttribute("kerning") == "auto"; |
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| 245 | shape.text = r.firstChild.nodeValue; |
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| 246 | } |
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| 247 | |
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| 248 | return svg; // return augmented svg api |
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| 249 | }); |
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