97 lines
2.7 KiB
JavaScript
97 lines
2.7 KiB
JavaScript
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dojo.provide("dojox.charting.action2d.MoveSlice");
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dojo.require("dojox.charting.action2d.Base");
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dojo.require("dojox.gfx.matrix");
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dojo.require("dojox.lang.functional");
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dojo.require("dojox.lang.functional.scan");
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dojo.require("dojox.lang.functional.fold");
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(function(){
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var DEFAULT_SCALE = 1.05,
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DEFAULT_SHIFT = 7, // px
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m = dojox.gfx.matrix,
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gf = dojox.gfx.fx,
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df = dojox.lang.functional;
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dojo.declare("dojox.charting.action2d.MoveSlice", dojox.charting.action2d.Base, {
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// the data description block for the widget parser
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defaultParams: {
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duration: 400, // duration of the action in ms
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easing: dojo.fx.easing.backOut, // easing for the action
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scale: DEFAULT_SCALE, // scale of magnification
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shift: DEFAULT_SHIFT // shift of the slice
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},
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optionalParams: {}, // no optional parameters
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constructor: function(chart, plot, kwArgs){
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// process optional named parameters
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if(!kwArgs){ kwArgs = {}; }
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this.scale = typeof kwArgs.scale == "number" ? kwArgs.scale : DEFAULT_SCALE;
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this.shift = typeof kwArgs.shift == "number" ? kwArgs.shift : DEFAULT_SHIFT;
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this.connect();
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},
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process: function(o){
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if(!o.shape || o.element != "slice" || !(o.type in this.overOutEvents)){ return; }
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if(!this.angles){
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// calculate the running total of slice angles
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if(typeof o.run.data[0] == "number"){
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this.angles = df.map(df.scanl(o.run.data, "+", 0),
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"* 2 * Math.PI / this", df.foldl(o.run.data, "+", 0));
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}else{
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this.angles = df.map(df.scanl(o.run.data, "a + b.y", 0),
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"* 2 * Math.PI / this", df.foldl(o.run.data, "a + b.y", 0));
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}
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}
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var index = o.index, anim, endScale, startOffset, endOffset,
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angle = (this.angles[index] + this.angles[index + 1]) / 2,
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rotateTo0 = m.rotateAt(-angle, o.cx, o.cy),
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rotateBack = m.rotateAt( angle, o.cx, o.cy);
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anim = this.anim[index];
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if(anim){
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anim.action.stop(true);
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}else{
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this.anim[index] = anim = {};
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}
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if(o.type == "onmouseover"){
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startOffset = 0;
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endOffset = this.shift;
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endScale = this.scale;
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}else{
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startOffset = this.shift;
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endOffset = 0;
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endScale = 1 / this.scale;
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}
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anim.action = dojox.gfx.fx.animateTransform({
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shape: o.shape,
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duration: this.duration,
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easing: this.easing,
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transform: [
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rotateBack,
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{name: "translate", start: [startOffset, 0], end: [endOffset, 0]},
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{name: "scaleAt", start: [1, o.cx, o.cy], end: [endScale, o.cx, o.cy]},
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rotateTo0
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]
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});
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if(o.type == "onmouseout"){
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dojo.connect(anim.action, "onEnd", this, function(){
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delete this.anim[index];
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});
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}
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anim.action.play();
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},
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reset: function(){
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delete this.angles;
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}
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});
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})();
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