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Diffstat (limited to 'public/bower_components/chart.js/src/Chart.Doughnut.js')
| -rw-r--r-- | public/bower_components/chart.js/src/Chart.Doughnut.js | 184 |
1 files changed, 184 insertions, 0 deletions
diff --git a/public/bower_components/chart.js/src/Chart.Doughnut.js b/public/bower_components/chart.js/src/Chart.Doughnut.js new file mode 100644 index 0000000..a892b0e --- /dev/null +++ b/public/bower_components/chart.js/src/Chart.Doughnut.js @@ -0,0 +1,184 @@ +(function(){ + "use strict"; + + var root = this, + Chart = root.Chart, + //Cache a local reference to Chart.helpers + helpers = Chart.helpers; + + var defaultConfig = { + //Boolean - Whether we should show a stroke on each segment + segmentShowStroke : true, + + //String - The colour of each segment stroke + segmentStrokeColor : "#fff", + + //Number - The width of each segment stroke + segmentStrokeWidth : 2, + + //The percentage of the chart that we cut out of the middle. + percentageInnerCutout : 50, + + //Number - Amount of animation steps + animationSteps : 100, + + //String - Animation easing effect + animationEasing : "easeOutBounce", + + //Boolean - Whether we animate the rotation of the Doughnut + animateRotate : true, + + //Boolean - Whether we animate scaling the Doughnut from the centre + animateScale : false, + + //String - A legend template + legendTemplate : "<ul class=\"<%=name.toLowerCase()%>-legend\"><% for (var i=0; i<segments.length; i++){%><li><span style=\"background-color:<%=segments[i].fillColor%>\"></span><%if(segments[i].label){%><%=segments[i].label%><%}%></li><%}%></ul>" + + }; + + + Chart.Type.extend({ + //Passing in a name registers this chart in the Chart namespace + name: "Doughnut", + //Providing a defaults will also register the deafults in the chart namespace + defaults : defaultConfig, + //Initialize is fired when the chart is initialized - Data is passed in as a parameter + //Config is automatically merged by the core of Chart.js, and is available at this.options + initialize: function(data){ + + //Declare segments as a static property to prevent inheriting across the Chart type prototype + this.segments = []; + this.outerRadius = (helpers.min([this.chart.width,this.chart.height]) - this.options.segmentStrokeWidth/2)/2; + + this.SegmentArc = Chart.Arc.extend({ + ctx : this.chart.ctx, + x : this.chart.width/2, + y : this.chart.height/2 + }); + + //Set up tooltip events on the chart + if (this.options.showTooltips){ + helpers.bindEvents(this, this.options.tooltipEvents, function(evt){ + var activeSegments = (evt.type !== 'mouseout') ? this.getSegmentsAtEvent(evt) : []; + + helpers.each(this.segments,function(segment){ + segment.restore(["fillColor"]); + }); + helpers.each(activeSegments,function(activeSegment){ + activeSegment.fillColor = activeSegment.highlightColor; + }); + this.showTooltip(activeSegments); + }); + } + this.calculateTotal(data); + + helpers.each(data,function(datapoint, index){ + this.addData(datapoint, index, true); + },this); + + this.render(); + }, + getSegmentsAtEvent : function(e){ + var segmentsArray = []; + + var location = helpers.getRelativePosition(e); + + helpers.each(this.segments,function(segment){ + if (segment.inRange(location.x,location.y)) segmentsArray.push(segment); + },this); + return segmentsArray; + }, + addData : function(segment, atIndex, silent){ + var index = atIndex || this.segments.length; + this.segments.splice(index, 0, new this.SegmentArc({ + value : segment.value, + outerRadius : (this.options.animateScale) ? 0 : this.outerRadius, + innerRadius : (this.options.animateScale) ? 0 : (this.outerRadius/100) * this.options.percentageInnerCutout, + fillColor : segment.color, + highlightColor : segment.highlight || segment.color, + showStroke : this.options.segmentShowStroke, + strokeWidth : this.options.segmentStrokeWidth, + strokeColor : this.options.segmentStrokeColor, + startAngle : Math.PI * 1.5, + circumference : (this.options.animateRotate) ? 0 : this.calculateCircumference(segment.value), + label : segment.label + })); + if (!silent){ + this.reflow(); + this.update(); + } + }, + calculateCircumference : function(value){ + return (Math.PI*2)*(Math.abs(value) / this.total); + }, + calculateTotal : function(data){ + this.total = 0; + helpers.each(data,function(segment){ + this.total += Math.abs(segment.value); + },this); + }, + update : function(){ + this.calculateTotal(this.segments); + + // Reset any highlight colours before updating. + helpers.each(this.activeElements, function(activeElement){ + activeElement.restore(['fillColor']); + }); + + helpers.each(this.segments,function(segment){ + segment.save(); + }); + this.render(); + }, + + removeData: function(atIndex){ + var indexToDelete = (helpers.isNumber(atIndex)) ? atIndex : this.segments.length-1; + this.segments.splice(indexToDelete, 1); + this.reflow(); + this.update(); + }, + + reflow : function(){ + helpers.extend(this.SegmentArc.prototype,{ + x : this.chart.width/2, + y : this.chart.height/2 + }); + this.outerRadius = (helpers.min([this.chart.width,this.chart.height]) - this.options.segmentStrokeWidth/2)/2; + helpers.each(this.segments, function(segment){ + segment.update({ + outerRadius : this.outerRadius, + innerRadius : (this.outerRadius/100) * this.options.percentageInnerCutout + }); + }, this); + }, + draw : function(easeDecimal){ + var animDecimal = (easeDecimal) ? easeDecimal : 1; + this.clear(); + helpers.each(this.segments,function(segment,index){ + segment.transition({ + circumference : this.calculateCircumference(segment.value), + outerRadius : this.outerRadius, + innerRadius : (this.outerRadius/100) * this.options.percentageInnerCutout + },animDecimal); + + segment.endAngle = segment.startAngle + segment.circumference; + + segment.draw(); + if (index === 0){ + segment.startAngle = Math.PI * 1.5; + } + //Check to see if it's the last segment, if not get the next and update the start angle + if (index < this.segments.length-1){ + this.segments[index+1].startAngle = segment.endAngle; + } + },this); + + } + }); + + Chart.types.Doughnut.extend({ + name : "Pie", + defaults : helpers.merge(defaultConfig,{percentageInnerCutout : 0}) + }); + +}).call(this);
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