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Diffstat (limited to 'js/dojo/dojox/charting/plot2d/Bubble.js')
| -rw-r--r-- | js/dojo/dojox/charting/plot2d/Bubble.js | 219 |
1 files changed, 219 insertions, 0 deletions
diff --git a/js/dojo/dojox/charting/plot2d/Bubble.js b/js/dojo/dojox/charting/plot2d/Bubble.js new file mode 100644 index 0000000..4de7a06 --- /dev/null +++ b/js/dojo/dojox/charting/plot2d/Bubble.js @@ -0,0 +1,219 @@ +//>>built +define("dojox/charting/plot2d/Bubble", ["dojo/_base/lang", "dojo/_base/declare", "dojo/_base/array", + "./Base", "./common", "dojox/lang/functional", "dojox/lang/functional/reversed", + "dojox/lang/utils", "dojox/gfx/fx"], + function(lang, declare, arr, Base, dc, df, dfr, du, fx){ +/*===== +var Base = dojox.charting.plot2d.Base; +=====*/ + + var purgeGroup = dfr.lambda("item.purgeGroup()"); + + return declare("dojox.charting.plot2d.Bubble", Base, { + // summary: + // A plot representing bubbles. Note that data for Bubbles requires 3 parameters, + // in the form of: { x, y, size }, where size determines the size of the bubble. + defaultParams: { + hAxis: "x", // use a horizontal axis named "x" + vAxis: "y", // use a vertical axis named "y" + animate: null // animate bars into place + }, + optionalParams: { + // theme component + stroke: {}, + outline: {}, + shadow: {}, + fill: {}, + font: "", + fontColor: "" + }, + + constructor: function(chart, kwArgs){ + // summary: + // Create a plot of bubbles. + // chart: dojox.charting.Chart + // The chart this plot belongs to. + // kwArgs: dojox.charting.plot2d.__DefaultCtorArgs? + // Optional keyword arguments object to help define plot parameters. + this.opt = lang.clone(this.defaultParams); + du.updateWithObject(this.opt, kwArgs); + du.updateWithPattern(this.opt, kwArgs, this.optionalParams); + this.series = []; + this.hAxis = this.opt.hAxis; + this.vAxis = this.opt.vAxis; + this.animate = this.opt.animate; + }, + + // override the render so that we are plotting only circles. + render: function(dim, offsets){ + // summary: + // Run the calculations for any axes for this plot. + // dim: Object + // An object in the form of { width, height } + // offsets: Object + // An object of the form { l, r, t, b}. + // returns: dojox.charting.plot2d.Bubble + // A reference to this plot for functional chaining. + if(this.zoom && !this.isDataDirty()){ + return this.performZoom(dim, offsets); + } + this.resetEvents(); + this.dirty = this.isDirty(); + if(this.dirty){ + arr.forEach(this.series, purgeGroup); + this._eventSeries = {}; + this.cleanGroup(); + var s = this.group; + df.forEachRev(this.series, function(item){ item.cleanGroup(s); }); + } + + var t = this.chart.theme, + ht = this._hScaler.scaler.getTransformerFromModel(this._hScaler), + vt = this._vScaler.scaler.getTransformerFromModel(this._vScaler), + events = this.events(); + + for(var i = this.series.length - 1; i >= 0; --i){ + var run = this.series[i]; + if(!this.dirty && !run.dirty){ + t.skip(); + this._reconnectEvents(run.name); + continue; + } + run.cleanGroup(); + if(!run.data.length){ + run.dirty = false; + t.skip(); + continue; + } + + if(typeof run.data[0] == "number"){ + console.warn("dojox.charting.plot2d.Bubble: the data in the following series cannot be rendered as a bubble chart; ", run); + continue; + } + + var theme = t.next("circle", [this.opt, run]), s = run.group, + points = arr.map(run.data, function(v, i){ + return v ? { + x: ht(v.x) + offsets.l, + y: dim.height - offsets.b - vt(v.y), + radius: this._vScaler.bounds.scale * (v.size / 2) + } : null; + }, this); + + var frontCircles = null, outlineCircles = null, shadowCircles = null; + + // make shadows if needed + if(theme.series.shadow){ + shadowCircles = arr.map(points, function(item){ + if(item !== null){ + var finalTheme = t.addMixin(theme, "circle", item, true), + shadow = finalTheme.series.shadow; + var shape = s.createCircle({ + cx: item.x + shadow.dx, cy: item.y + shadow.dy, r: item.radius + }).setStroke(shadow).setFill(shadow.color); + if(this.animate){ + this._animateBubble(shape, dim.height - offsets.b, item.radius); + } + return shape; + } + return null; + }, this); + if(shadowCircles.length){ + run.dyn.shadow = shadowCircles[shadowCircles.length - 1].getStroke(); + } + } + + // make outlines if needed + if(theme.series.outline){ + outlineCircles = arr.map(points, function(item){ + if(item !== null){ + var finalTheme = t.addMixin(theme, "circle", item, true), + outline = dc.makeStroke(finalTheme.series.outline); + outline.width = 2 * outline.width + theme.series.stroke.width; + var shape = s.createCircle({ + cx: item.x, cy: item.y, r: item.radius + }).setStroke(outline); + if(this.animate){ + this._animateBubble(shape, dim.height - offsets.b, item.radius); + } + return shape; + } + return null; + }, this); + if(outlineCircles.length){ + run.dyn.outline = outlineCircles[outlineCircles.length - 1].getStroke(); + } + } + + // run through the data and add the circles. + frontCircles = arr.map(points, function(item){ + if(item !== null){ + var finalTheme = t.addMixin(theme, "circle", item, true), + rect = { + x: item.x - item.radius, + y: item.y - item.radius, + width: 2 * item.radius, + height: 2 * item.radius + }; + var specialFill = this._plotFill(finalTheme.series.fill, dim, offsets); + specialFill = this._shapeFill(specialFill, rect); + var shape = s.createCircle({ + cx: item.x, cy: item.y, r: item.radius + }).setFill(specialFill).setStroke(finalTheme.series.stroke); + if(this.animate){ + this._animateBubble(shape, dim.height - offsets.b, item.radius); + } + return shape; + } + return null; + }, this); + if(frontCircles.length){ + run.dyn.fill = frontCircles[frontCircles.length - 1].getFill(); + run.dyn.stroke = frontCircles[frontCircles.length - 1].getStroke(); + } + + if(events){ + var eventSeries = new Array(frontCircles.length); + arr.forEach(frontCircles, function(s, i){ + if(s !== null){ + var o = { + element: "circle", + index: i, + run: run, + shape: s, + outline: outlineCircles && outlineCircles[i] || null, + shadow: shadowCircles && shadowCircles[i] || null, + x: run.data[i].x, + y: run.data[i].y, + r: run.data[i].size / 2, + cx: points[i].x, + cy: points[i].y, + cr: points[i].radius + }; + this._connectEvents(o); + eventSeries[i] = o; + } + }, this); + this._eventSeries[run.name] = eventSeries; + }else{ + delete this._eventSeries[run.name]; + } + + run.dirty = false; + } + this.dirty = false; + return this; // dojox.charting.plot2d.Bubble + }, + _animateBubble: function(shape, offset, size){ + fx.animateTransform(lang.delegate({ + shape: shape, + duration: 1200, + transform: [ + {name: "translate", start: [0, offset], end: [0, 0]}, + {name: "scale", start: [0, 1/size], end: [1, 1]}, + {name: "original"} + ] + }, this.animate)).play(); + } + }); +}); |