| 1 | /* |
| 2 | PlotKit Sweet SVG Renderer |
| 3 | ========================== |
| 4 | SVG Renderer for PlotKit which looks pretty! |
| 5 | |
| 6 | Copyright |
| 7 | --------- |
| 8 | Copyright 2005,2006 (c) Alastair Tse <alastair^liquidx.net> |
| 9 | For use under the BSD license. <http://www.liquidx.net/plotkit> |
| 10 | */ |
| 11 | |
| 12 | |
| 13 | // ------------------------------------------------------------------------- |
| 14 | // Check required components |
| 15 | // ------------------------------------------------------------------------- |
| 16 | |
| 17 | try { |
| 18 | if (typeof(PlotKit.SVGRenderer) == 'undefined') |
| 19 | { |
| 20 | throw ""; |
| 21 | } |
| 22 | } |
| 23 | catch (e) { |
| 24 | throw "SweetSVG depends on MochiKit.{Base,Color,DOM,Format} and PlotKit.{Layout, SVG}" |
| 25 | } |
| 26 | |
| 27 | |
| 28 | if (typeof(PlotKit.SweetSVGRenderer) == 'undefined') { |
| 29 | PlotKit.SweetSVGRenderer = {}; |
| 30 | } |
| 31 | |
| 32 | PlotKit.SweetSVGRenderer = function(element, layout, options) { |
| 33 | if (arguments.length > 0) { |
| 34 | this.__init__(element, layout, options); |
| 35 | } |
| 36 | }; |
| 37 | |
| 38 | PlotKit.SweetSVGRenderer.NAME = "PlotKit.SweetSVGRenderer"; |
| 39 | PlotKit.SweetSVGRenderer.VERSION = PlotKit.VERSION; |
| 40 | |
| 41 | PlotKit.SweetSVGRenderer.__repr__ = function() { |
| 42 | return "[" + this.NAME + " " + this.VERSION + "]"; |
| 43 | }; |
| 44 | |
| 45 | PlotKit.SweetSVGRenderer.toString = function() { |
| 46 | return this.__repr__(); |
| 47 | }; |
| 48 | |
| 49 | // --------------------------------------------------------------------- |
| 50 | // Subclassing Magic |
| 51 | // --------------------------------------------------------------------- |
| 52 | |
| 53 | PlotKit.SweetSVGRenderer.prototype = new PlotKit.SVGRenderer(); |
| 54 | PlotKit.SweetSVGRenderer.prototype.constructor = PlotKit.SweetSVGRenderer; |
| 55 | PlotKit.SweetSVGRenderer.__super__ = PlotKit.SVGRenderer.prototype; |
| 56 | |
| 57 | // --------------------------------------------------------------------- |
| 58 | // Constructor |
| 59 | // --------------------------------------------------------------------- |
| 60 | |
| 61 | PlotKit.SweetSVGRenderer.prototype.__init__ = function(element, layout, options) { |
| 62 | var moreOpts = PlotKit.Base.officeBlue(); |
| 63 | MochiKit.Base.update(moreOpts, options); |
| 64 | PlotKit.SweetSVGRenderer.__super__.__init__.call(this, element, layout, moreOpts); |
| 65 | //this._addDropShadowFilter(); |
| 66 | }; |
| 67 | |
| 68 | PlotKit.SweetSVGRenderer.prototype._addDropShadowFilter = function() { |
| 69 | var filter = this.createSVGElement("filter", {x: 0, y: 0, "id":"dropShadow"}); |
| 70 | var goffset = this.createSVGElement("feOffset", |
| 71 | {"in": "SourceGraphic", "dx": 0, "dy": 0, "result": "topCopy"}); |
| 72 | var blur = this.createSVGElement("feGaussianBlur", |
| 73 | {"in": "SourceAlpha", "StdDeviation": 2, "result": "shadow"}); |
| 74 | var soffset = this.createSVGElement("feOffset", |
| 75 | {"in": "shadow", "dx": -1, "dy": -2, "result":"movedShadow"}); |
| 76 | var merge = this.createSVGElement("feMerge"); |
| 77 | var gmerge = this.createSVGElement("feMergeNode", {"in":"topCopy"}); |
| 78 | var smerge = this.createSVGElement("feMergeNode", {"in":"movedShadow"}); |
| 79 | |
| 80 | merge.appendChild(gmerge); |
| 81 | merge.appendChild(smerge); |
| 82 | filter.appendChild(goffset); |
| 83 | filter.appendChild(blur); |
| 84 | filter.appendChild(soffset); |
| 85 | filter.appendChild(merge); |
| 86 | this.defs.appendChild(filter); |
| 87 | }; |
| 88 | |
| 89 | // --------------------------------------------------------------------- |
| 90 | // Extended Plotting Functions |
| 91 | // --------------------------------------------------------------------- |
| 92 | |
| 93 | PlotKit.SweetSVGRenderer.prototype._renderBarChart = function() { |
| 94 | var bind = MochiKit.Base.bind; |
| 95 | var shadowColor = Color.blackColor().toRGBString(); |
| 96 | var shadowStyle = "fill:" + shadowColor + ";fill-opacity:0.15"; |
| 97 | var strokeStyle = "stroke-width: 2.0; stroke:" + Color.whiteColor().toRGBString(); |
| 98 | |
| 99 | var drawRect = function(attrs, bar) { |
| 100 | var x = this.area.w * bar.x + this.area.x; |
| 101 | var y = this.area.h * bar.y + this.area.y; |
| 102 | var w = this.area.w * bar.w; |
| 103 | var h = this.area.h * bar.h; |
| 104 | |
| 105 | if ((w < 1) || (h < 1)) |
| 106 | return; |
| 107 | |
| 108 | //attrs["filter"] = "url(#dropShadow)"; |
| 109 | attrs["style"] = strokeStyle; |
| 110 | this._drawRect(x - 2, y - 1, w+4, h+2, {"style":shadowStyle}); |
| 111 | this._drawRect(x, y, w, h, attrs); |
| 112 | }; |
| 113 | this._renderBarOrLine(this.layout.bars, bind(drawRect, this)); |
| 114 | |
| 115 | }; |
| 116 | |
| 117 | PlotKit.SweetSVGRenderer.prototype._renderLineChart = function() { |
| 118 | var bind = MochiKit.Base.bind; |
| 119 | var shadowColor = Color.blackColor().toRGBString(); |
| 120 | var shadowStyle = "fill:" + shadowColor + ";fill-opacity:0.15"; |
| 121 | var strokeStyle = "stroke-width: 2.0; stroke:" + Color.whiteColor().toRGBString(); |
| 122 | |
| 123 | var addPoint = function(attrs, point) { |
| 124 | this._tempPointsBuffer += (this.area.w * point.x + this.area.x) + "," + |
| 125 | (this.area.h * point.y + this.area.y) + " "; |
| 126 | }; |
| 127 | |
| 128 | var startLine = function(attrs) { |
| 129 | this._tempPointsBuffer = ""; |
| 130 | this._tempPointsBuffer += (this.area.x) + "," + (this.area.y+this.area.h) + " "; |
| 131 | }; |
| 132 | |
| 133 | var endLine = function(attrs) { |
| 134 | this._tempPointsBuffer += (this.area.w + this.area.x) + "," +(this.area.h + this.area.y); |
| 135 | attrs["points"] = this._tempPointsBuffer; |
| 136 | |
| 137 | attrs["stroke"] = "none"; |
| 138 | attrs["transform"] = "translate(-2, -1)"; |
| 139 | attrs["style"] = shadowStyle; |
| 140 | var shadow = this.createSVGElement("polygon", attrs); |
| 141 | this.root.appendChild(shadow); |
| 142 | |
| 143 | attrs["transform"] = ""; |
| 144 | attrs["style"] = strokeStyle; |
| 145 | var elem = this.createSVGElement("polygon", attrs); |
| 146 | this.root.appendChild(elem); |
| 147 | |
| 148 | |
| 149 | }; |
| 150 | |
| 151 | this._renderBarOrLine(this.layout.points, |
| 152 | bind(addPoint, this), |
| 153 | bind(startLine, this), |
| 154 | bind(endLine, this)); |
| 155 | }; |
| 156 | |
| 157 | PlotKit.SweetSVGRenderer.prototype._renderPieChart = function() { |
| 158 | var centerx = this.area.x + this.area.w * 0.5; |
| 159 | var centery = this.area.y + this.area.h * 0.5; |
| 160 | var shadowColor = Color.blackColor().toRGBString(); |
| 161 | var radius = Math.min(this.area.w * this.options.pieRadius, |
| 162 | this.area.h * this.options.pieRadius); |
| 163 | var shadowStyle = "fill:" + shadowColor + ";fill-opacity:0.15"; |
| 164 | |
| 165 | var shadow = this.createSVGElement("circle", |
| 166 | {"style": shadowStyle, "cx": centerx + 1, "cy": centery + 1, "r": radius + 1}); |
| 167 | this.root.appendChild(shadow); |
| 168 | |
| 169 | PlotKit.SweetSVGRenderer.__super__._renderPieChart.call(this); |
| 170 | }; |
| 171 | |
| 172 | |
| 173 | PlotKit.SweetSVGRenderer.prototype._renderBackground = function() { |
| 174 | var attrs = { |
| 175 | "fill": this.options.backgroundColor.toRGBString(), |
| 176 | "stroke": "none" |
| 177 | }; |
| 178 | |
| 179 | |
| 180 | if (this.layout.style == "bar" || this.layout.style == "line") { |
| 181 | this._drawRect(this.area.x, this.area.y, |
| 182 | this.area.w, this.area.h, attrs); |
| 183 | |
| 184 | var ticks = this.layout.yticks; |
| 185 | var horiz = false; |
| 186 | if (this.layout.style == "bar" && |
| 187 | this.layout.options.barOrientation == "horizontal") { |
| 188 | ticks = this.layout.xticks; |
| 189 | horiz = true; |
| 190 | } |
| 191 | |
| 192 | for (var i = 0; i < ticks.length; i++) { |
| 193 | var x = 0; |
| 194 | var y = 0; |
| 195 | var w = 0; |
| 196 | var h = 0; |
| 197 | |
| 198 | if (horiz) { |
| 199 | x = ticks[i][0] * this.area.w + this.area.x; |
| 200 | y = this.area.y; |
| 201 | w = 1; |
| 202 | h = this.area.w; |
| 203 | } |
| 204 | else { |
| 205 | x = this.area.x; |
| 206 | y = ticks[i][0] * this.area.h + this.area.y; |
| 207 | w = this.area.w; |
| 208 | h = 1; |
| 209 | } |
| 210 | |
| 211 | this._drawRect(x, y, w, h, |
| 212 | {"fill": this.options.axisLineColor.toRGBString()}); |
| 213 | } |
| 214 | } |
| 215 | else { |
| 216 | PlotKit.SweetSVGRenderer.__super__._renderBackground.call(this); |
| 217 | |
| 218 | } |
| 219 | |
| 220 | }; |
| 221 | |
| 222 | // Namespace Iniitialisation |
| 223 | |
| 224 | PlotKit.SweetSVG = {} |
| 225 | PlotKit.SweetSVG.SweetSVGRenderer = PlotKit.SweetSVGRenderer; |
| 226 | |
| 227 | PlotKit.SweetSVG.EXPORT = [ |
| 228 | "SweetSVGRenderer" |
| 229 | ]; |
| 230 | |
| 231 | PlotKit.SweetSVG.EXPORT_OK = [ |
| 232 | "SweetSVGRenderer" |
| 233 | ]; |
| 234 | |
| 235 | PlotKit.SweetSVG.__new__ = function() { |
| 236 | var m = MochiKit.Base; |
| 237 | |
| 238 | m.nameFunctions(this); |
| 239 | |
| 240 | this.EXPORT_TAGS = { |
| 241 | ":common": this.EXPORT, |
| 242 | ":all": m.concat(this.EXPORT, this.EXPORT_OK) |
| 243 | }; |
| 244 | }; |
| 245 | |
| 246 | PlotKit.SweetSVG.__new__(); |
| 247 | MochiKit.Base._exportSymbols(this, PlotKit.SweetSVG); |