diff options
Diffstat (limited to 'includes/js/dojox/charting/plot2d/Pie.js')
| -rw-r--r-- | includes/js/dojox/charting/plot2d/Pie.js | 199 |
1 files changed, 199 insertions, 0 deletions
diff --git a/includes/js/dojox/charting/plot2d/Pie.js b/includes/js/dojox/charting/plot2d/Pie.js new file mode 100644 index 0000000..2d0f55e --- /dev/null +++ b/includes/js/dojox/charting/plot2d/Pie.js @@ -0,0 +1,199 @@ +if(!dojo._hasResource["dojox.charting.plot2d.Pie"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code. +dojo._hasResource["dojox.charting.plot2d.Pie"] = true; +dojo.provide("dojox.charting.plot2d.Pie"); + +dojo.require("dojox.charting.Element"); +dojo.require("dojox.charting.axis2d.common"); +dojo.require("dojox.charting.plot2d.common"); + +dojo.require("dojox.lang.functional"); +dojo.require("dojox.gfx"); + +(function(){ + var df = dojox.lang.functional, du = dojox.lang.utils, + dc = dojox.charting.plot2d.common, + da = dojox.charting.axis2d.common, + g = dojox.gfx; + + dojo.declare("dojox.charting.plot2d.Pie", dojox.charting.Element, { + defaultParams: { + labels: true, + ticks: false, + fixed: true, + precision: 1, + labelOffset: 20, + labelStyle: "default", // default/rows/auto + htmlLabels: true // use HTML to draw labels + }, + optionalParams: { + font: "", + fontColor: "", + radius: 0 + }, + + constructor: function(chart, kwArgs){ + this.opt = dojo.clone(this.defaultParams); + du.updateWithObject(this.opt, kwArgs); + du.updateWithPattern(this.opt, kwArgs, this.optionalParams); + this.run = null; + this.dyn = []; + }, + clear: function(){ + this.dirty = true; + this.dyn = []; + return this; + }, + setAxis: function(axis){ + // nothing + return this; + }, + addSeries: function(run){ + this.run = run; + return this; + }, + calculateAxes: function(dim){ + // nothing + return this; + }, + getRequiredColors: function(){ + return this.run ? this.run.data.length : 0; + }, + render: function(dim, offsets){ + if(!this.dirty){ return this; } + this.dirty = false; + this.cleanGroup(); + var s = this.group, color, t = this.chart.theme; + + // calculate the geometry + var rx = (dim.width - offsets.l - offsets.r) / 2, + ry = (dim.height - offsets.t - offsets.b) / 2, + r = Math.min(rx, ry), + taFont = "font" in this.opt ? this.opt.font : t.axis.font, + size = taFont ? g.normalizedLength(g.splitFontString(taFont).size) : 0, + taFontColor = "fontColor" in this.opt ? this.opt.fontColor : t.axis.fontColor, + start = 0, step, sum, slices, labels, shift, labelR, + run = this.run.data; + if(typeof run[0] == "number"){ + sum = df.foldl1(run, "+"); + slices = dojo.map(run, function(x){ return x / sum; }); + if(this.opt.labels){ + labels = dojo.map(slices, function(x){ + return this._getLabel(x * 100) + "%"; + }, this); + } + }else{ + sum = df.foldl1(run, function(a, b){ return {y: a.y + b.y}; }).y; + slices = df.map(run, function(x){ return x.y / sum; }); + if(this.opt.labels){ + labels = dojo.map(slices, function(x, i){ + var v = run[i]; + return "text" in v ? v.text : this._getLabel(x * 100) + "%"; + }, this); + } + } + if(this.opt.labels){ + shift = df.foldl1(df.map(labels, function(label){ + return dojox.gfx._base._getTextBox(label, {font: taFont}).w; + }, this), "Math.max(a, b)") / 2; + if(this.opt.labelOffset < 0){ + r = Math.min(rx - 2 * shift, ry - size) + this.opt.labelOffset; + } + labelR = r - this.opt.labelOffset; + } + if("radius" in this.opt){ + r = this.opt.radius; + labelR = r - this.opt.labelOffset; + } + var circle = { + cx: offsets.l + rx, + cy: offsets.t + ry, + r: r + }; + + this.dyn = []; + if(!this.run || !run.length){ + return this; + } + if(run.length == 1){ + // need autogenerated color + color = new dojo.Color(t.next("color")); + var shape = s.createCircle(circle). + setFill(dc.augmentFill(t.run.fill, color)). + setStroke(dc.augmentStroke(t.series.stroke, color)); + this.dyn.push({color: color, fill: shape.getFill(), stroke: shape.getStroke()}); + if(this.opt.labels){ + // draw the label + var elem = da.createText[this.opt.htmlLabels && dojox.gfx.renderer != "vml" ? "html" : "gfx"] + (this.chart, s, circle.cx, circle.cy + size / 2, "middle", + "100%", taFont, taFontColor); + if(this.opt.htmlLabels){ this.htmlElements.push(elem); } + } + return this; + } + // draw slices + dojo.forEach(slices, function(x, i){ + // calculate the geometry of the slice + var end = start + x * 2 * Math.PI, v = run[i]; + if(i + 1 == slices.length){ + end = 2 * Math.PI; + } + var step = end - start, + x1 = circle.cx + r * Math.cos(start), + y1 = circle.cy + r * Math.sin(start), + x2 = circle.cx + r * Math.cos(end), + y2 = circle.cy + r * Math.sin(end); + // draw the slice + var color, fill, stroke; + if(typeof v == "object"){ + color = "color" in v ? v.color : new dojo.Color(t.next("color")); + fill = "fill" in v ? v.fill : dc.augmentFill(t.series.fill, color); + stroke = "stroke" in v ? v.stroke : dc.augmentStroke(t.series.stroke, color); + }else{ + color = new dojo.Color(t.next("color")); + fill = dc.augmentFill(t.series.fill, color); + stroke = dc.augmentStroke(t.series.stroke, color); + } + var shape = s.createPath({}). + moveTo(circle.cx, circle.cy). + lineTo(x1, y1). + arcTo(r, r, 0, step > Math.PI, true, x2, y2). + lineTo(circle.cx, circle.cy). + closePath(). + setFill(fill). + setStroke(stroke); + this.dyn.push({color: color, fill: fill, stroke: stroke}); + start = end; + }, this); + // draw labels + if(this.opt.labels){ + start = 0; + dojo.forEach(slices, function(slice, i){ + // calculate the geometry of the slice + var end = start + slice * 2 * Math.PI, v = run[i]; + if(i + 1 == slices.length){ + end = 2 * Math.PI; + } + var labelAngle = (start + end) / 2, + x = circle.cx + labelR * Math.cos(labelAngle), + y = circle.cy + labelR * Math.sin(labelAngle) + size / 2; + // draw the label + var elem = da.createText[this.opt.htmlLabels && dojox.gfx.renderer != "vml" ? "html" : "gfx"] + (this.chart, s, x, y, "middle", + labels[i], taFont, + (typeof v == "object" && "fontColor" in v) + ? v.fontColor : taFontColor); + if(this.opt.htmlLabels){ this.htmlElements.push(elem); } + start = end; + }, this); + } + return this; + }, + + // utilities + _getLabel: function(number){ + return this.opt.fixed ? number.toFixed(this.opt.precision) : number.toString(); + } + }); +})(); + +} |