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