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Diffstat (limited to 'tipboard/static/js/lib/jqplot/plugins/jqplot.pieRenderer.js')
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diff --git a/tipboard/static/js/lib/jqplot/plugins/jqplot.pieRenderer.js b/tipboard/static/js/lib/jqplot/plugins/jqplot.pieRenderer.js new file mode 100644 index 0000000..1d508bd --- /dev/null +++ b/tipboard/static/js/lib/jqplot/plugins/jqplot.pieRenderer.js @@ -0,0 +1,904 @@ +/** + * jqPlot + * Pure JavaScript plotting plugin using jQuery + * + * Version: 1.0.8 + * Revision: 1250 + * + * Copyright (c) 2009-2013 Chris Leonello + * jqPlot is currently available for use in all personal or commercial projects + * under both the MIT (http://www.opensource.org/licenses/mit-license.php) and GPL + * version 2.0 (http://www.gnu.org/licenses/gpl-2.0.html) licenses. This means that you can + * choose the license that best suits your project and use it accordingly. + * + * Although not required, the author would appreciate an email letting him + * know of any substantial use of jqPlot. You can reach the author at: + * chris at jqplot dot com or see http://www.jqplot.com/info.php . + * + * If you are feeling kind and generous, consider supporting the project by + * making a donation at: http://www.jqplot.com/donate.php . + * + * sprintf functions contained in jqplot.sprintf.js by Ash Searle: + * + * version 2007.04.27 + * author Ash Searle + * http://hexmen.com/blog/2007/03/printf-sprintf/ + * http://hexmen.com/js/sprintf.js + * The author (Ash Searle) has placed this code in the public domain: + * "This code is unrestricted: you are free to use it however you like." + * + */ +(function($) { + /** + * Class: $.jqplot.PieRenderer + * Plugin renderer to draw a pie chart. + * x values, if present, will be used as slice labels. + * y values give slice size. + * + * To use this renderer, you need to include the + * pie renderer plugin, for example: + * + * > <script type="text/javascript" src="plugins/jqplot.pieRenderer.js"></script> + * + * Properties described here are passed into the $.jqplot function + * as options on the series renderer. For example: + * + * > plot2 = $.jqplot('chart2', [s1, s2], { + * > seriesDefaults: { + * > renderer:$.jqplot.PieRenderer, + * > rendererOptions:{ + * > sliceMargin: 2, + * > startAngle: -90 + * > } + * > } + * > }); + * + * A pie plot will trigger events on the plot target + * according to user interaction. All events return the event object, + * the series index, the point (slice) index, and the point data for + * the appropriate slice. + * + * 'jqplotDataMouseOver' - triggered when user mouseing over a slice. + * 'jqplotDataHighlight' - triggered the first time user mouses over a slice, + * if highlighting is enabled. + * 'jqplotDataUnhighlight' - triggered when a user moves the mouse out of + * a highlighted slice. + * 'jqplotDataClick' - triggered when the user clicks on a slice. + * 'jqplotDataRightClick' - tiggered when the user right clicks on a slice if + * the "captureRightClick" option is set to true on the plot. + */ + $.jqplot.PieRenderer = function(){ + $.jqplot.LineRenderer.call(this); + }; + + $.jqplot.PieRenderer.prototype = new $.jqplot.LineRenderer(); + $.jqplot.PieRenderer.prototype.constructor = $.jqplot.PieRenderer; + + // called with scope of a series + $.jqplot.PieRenderer.prototype.init = function(options, plot) { + // Group: Properties + // + // prop: diameter + // Outer diameter of the pie, auto computed by default + this.diameter = null; + // prop: padding + // padding between the pie and plot edges, legend, etc. + this.padding = 20; + // prop: sliceMargin + // angular spacing between pie slices in degrees. + this.sliceMargin = 0; + // prop: fill + // true or false, whether to fil the slices. + this.fill = true; + // prop: shadowOffset + // offset of the shadow from the slice and offset of + // each succesive stroke of the shadow from the last. + this.shadowOffset = 2; + // prop: shadowAlpha + // transparency of the shadow (0 = transparent, 1 = opaque) + this.shadowAlpha = 0.07; + // prop: shadowDepth + // number of strokes to apply to the shadow, + // each stroke offset shadowOffset from the last. + this.shadowDepth = 5; + // prop: highlightMouseOver + // True to highlight slice when moused over. + // This must be false to enable highlightMouseDown to highlight when clicking on a slice. + this.highlightMouseOver = true; + // prop: highlightMouseDown + // True to highlight when a mouse button is pressed over a slice. + // This will be disabled if highlightMouseOver is true. + this.highlightMouseDown = false; + // prop: highlightColors + // an array of colors to use when highlighting a slice. + this.highlightColors = []; + // prop: dataLabels + // Either 'label', 'value', 'percent' or an array of labels to place on the pie slices. + // Defaults to percentage of each pie slice. + this.dataLabels = 'percent'; + // prop: showDataLabels + // true to show data labels on slices. + this.showDataLabels = false; + // prop: dataLabelFormatString + // Format string for data labels. If none, '%s' is used for "label" and for arrays, '%d' for value and '%d%%' for percentage. + this.dataLabelFormatString = null; + // prop: dataLabelThreshold + // Threshhold in percentage (0-100) of pie area, below which no label will be displayed. + // This applies to all label types, not just to percentage labels. + this.dataLabelThreshold = 3; + // prop: dataLabelPositionFactor + // A Multiplier (0-1) of the pie radius which controls position of label on slice. + // Increasing will slide label toward edge of pie, decreasing will slide label toward center of pie. + this.dataLabelPositionFactor = 0.52; + // prop: dataLabelNudge + // Number of pixels to slide the label away from (+) or toward (-) the center of the pie. + this.dataLabelNudge = 2; + // prop: dataLabelCenterOn + // True to center the data label at its position. + // False to set the inside facing edge of the label at its position. + this.dataLabelCenterOn = true; + // prop: startAngle + // Angle to start drawing pie in degrees. + // According to orientation of canvas coordinate system: + // 0 = on the positive x axis + // -90 = on the positive y axis. + // 90 = on the negaive y axis. + // 180 or - 180 = on the negative x axis. + this.startAngle = 0; + this.tickRenderer = $.jqplot.PieTickRenderer; + // Used as check for conditions where pie shouldn't be drawn. + this._drawData = true; + this._type = 'pie'; + + // if user has passed in highlightMouseDown option and not set highlightMouseOver, disable highlightMouseOver + if (options.highlightMouseDown && options.highlightMouseOver == null) { + options.highlightMouseOver = false; + } + + $.extend(true, this, options); + + if (this.sliceMargin < 0) { + this.sliceMargin = 0; + } + + this._diameter = null; + this._radius = null; + // array of [start,end] angles arrays, one for each slice. In radians. + this._sliceAngles = []; + // index of the currenty highlighted point, if any + this._highlightedPoint = null; + + // set highlight colors if none provided + if (this.highlightColors.length == 0) { + for (var i=0; i<this.seriesColors.length; i++){ + var rgba = $.jqplot.getColorComponents(this.seriesColors[i]); + var newrgb = [rgba[0], rgba[1], rgba[2]]; + var sum = newrgb[0] + newrgb[1] + newrgb[2]; + for (var j=0; j<3; j++) { + // when darkening, lowest color component can be is 60. + newrgb[j] = (sum > 570) ? newrgb[j] * 0.8 : newrgb[j] + 0.3 * (255 - newrgb[j]); + newrgb[j] = parseInt(newrgb[j], 10); + } + this.highlightColors.push('rgb('+newrgb[0]+','+newrgb[1]+','+newrgb[2]+')'); + } + } + + this.highlightColorGenerator = new $.jqplot.ColorGenerator(this.highlightColors); + + plot.postParseOptionsHooks.addOnce(postParseOptions); + plot.postInitHooks.addOnce(postInit); + plot.eventListenerHooks.addOnce('jqplotMouseMove', handleMove); + plot.eventListenerHooks.addOnce('jqplotMouseDown', handleMouseDown); + plot.eventListenerHooks.addOnce('jqplotMouseUp', handleMouseUp); + plot.eventListenerHooks.addOnce('jqplotClick', handleClick); + plot.eventListenerHooks.addOnce('jqplotRightClick', handleRightClick); + plot.postDrawHooks.addOnce(postPlotDraw); + }; + + $.jqplot.PieRenderer.prototype.setGridData = function(plot) { + // set gridData property. This will hold angle in radians of each data point. + var stack = []; + var td = []; + var sa = this.startAngle/180*Math.PI; + var tot = 0; + // don't know if we have any valid data yet, so set plot to not draw. + this._drawData = false; + for (var i=0; i<this.data.length; i++){ + if (this.data[i][1] != 0) { + // we have data, O.K. to draw. + this._drawData = true; + } + stack.push(this.data[i][1]); + td.push([this.data[i][0]]); + if (i>0) { + stack[i] += stack[i-1]; + } + tot += this.data[i][1]; + } + var fact = Math.PI*2/stack[stack.length - 1]; + + for (var i=0; i<stack.length; i++) { + td[i][1] = stack[i] * fact; + td[i][2] = this.data[i][1]/tot; + } + this.gridData = td; + }; + + $.jqplot.PieRenderer.prototype.makeGridData = function(data, plot) { + var stack = []; + var td = []; + var tot = 0; + var sa = this.startAngle/180*Math.PI; + // don't know if we have any valid data yet, so set plot to not draw. + this._drawData = false; + for (var i=0; i<data.length; i++){ + if (this.data[i][1] != 0) { + // we have data, O.K. to draw. + this._drawData = true; + } + stack.push(data[i][1]); + td.push([data[i][0]]); + if (i>0) { + stack[i] += stack[i-1]; + } + tot += data[i][1]; + } + var fact = Math.PI*2/stack[stack.length - 1]; + + for (var i=0; i<stack.length; i++) { + td[i][1] = stack[i] * fact; + td[i][2] = data[i][1]/tot; + } + return td; + }; + + function calcRadiusAdjustment(ang) { + return Math.sin((ang - (ang-Math.PI) / 8 / Math.PI )/2.0); + } + + function calcRPrime(ang1, ang2, sliceMargin, fill, lineWidth) { + var rprime = 0; + var ang = ang2 - ang1; + var absang = Math.abs(ang); + var sm = sliceMargin; + if (fill == false) { + sm += lineWidth; + } + + if (sm > 0 && absang > 0.01 && absang < 6.282) { + rprime = parseFloat(sm) / 2.0 / calcRadiusAdjustment(ang); + } + + return rprime; + } + + $.jqplot.PieRenderer.prototype.drawSlice = function (ctx, ang1, ang2, color, isShadow) { + if (this._drawData) { + var r = this._radius; + var fill = this.fill; + var lineWidth = this.lineWidth; + var sm = this.sliceMargin; + if (this.fill == false) { + sm += this.lineWidth; + } + ctx.save(); + ctx.translate(this._center[0], this._center[1]); + + var rprime = calcRPrime(ang1, ang2, this.sliceMargin, this.fill, this.lineWidth); + + var transx = rprime * Math.cos((ang1 + ang2) / 2.0); + var transy = rprime * Math.sin((ang1 + ang2) / 2.0); + + if ((ang2 - ang1) <= Math.PI) { + r -= rprime; + } + else { + r += rprime; + } + + ctx.translate(transx, transy); + + if (isShadow) { + for (var i=0, l=this.shadowDepth; i<l; i++) { + ctx.save(); + ctx.translate(this.shadowOffset*Math.cos(this.shadowAngle/180*Math.PI), this.shadowOffset*Math.sin(this.shadowAngle/180*Math.PI)); + doDraw(r); + } + for (var i=0, l=this.shadowDepth; i<l; i++) { + ctx.restore(); + } + } + + else { + doDraw(r); + } + ctx.restore(); + } + + function doDraw (rad) { + // Fix for IE and Chrome that can't seem to draw circles correctly. + // ang2 should always be <= 2 pi since that is the way the data is converted. + // 2Pi = 6.2831853, Pi = 3.1415927 + if (ang2 > 6.282 + this.startAngle) { + ang2 = 6.282 + this.startAngle; + if (ang1 > ang2) { + ang1 = 6.281 + this.startAngle; + } + } + // Fix for IE, where it can't seem to handle 0 degree angles. Also avoids + // ugly line on unfilled pies. + if (ang1 >= ang2) { + return; + } + + ctx.beginPath(); + ctx.fillStyle = color; + ctx.strokeStyle = color; + ctx.lineWidth = lineWidth; + ctx.arc(0, 0, rad, ang1, ang2, false); + ctx.lineTo(0,0); + ctx.closePath(); + + if (fill) { + ctx.fill(); + } + else { + ctx.stroke(); + } + } + }; + + // called with scope of series + $.jqplot.PieRenderer.prototype.draw = function (ctx, gd, options, plot) { + var i; + var opts = (options != undefined) ? options : {}; + // offset and direction of offset due to legend placement + var offx = 0; + var offy = 0; + var trans = 1; + var colorGenerator = new $.jqplot.ColorGenerator(this.seriesColors); + if (options.legendInfo && options.legendInfo.placement == 'insideGrid') { + var li = options.legendInfo; + switch (li.location) { + case 'nw': + offx = li.width + li.xoffset; + break; + case 'w': + offx = li.width + li.xoffset; + break; + case 'sw': + offx = li.width + li.xoffset; + break; + case 'ne': + offx = li.width + li.xoffset; + trans = -1; + break; + case 'e': + offx = li.width + li.xoffset; + trans = -1; + break; + case 'se': + offx = li.width + li.xoffset; + trans = -1; + break; + case 'n': + offy = li.height + li.yoffset; + break; + case 's': + offy = li.height + li.yoffset; + trans = -1; + break; + default: + break; + } + } + + var shadow = (opts.shadow != undefined) ? opts.shadow : this.shadow; + var fill = (opts.fill != undefined) ? opts.fill : this.fill; + var cw = ctx.canvas.width; + var ch = ctx.canvas.height; + var w = cw - offx - 2 * this.padding; + var h = ch - offy - 2 * this.padding; + var mindim = Math.min(w,h); + var d = mindim; + + // Fixes issue #272. Thanks hugwijst! + // reset slice angles array. + this._sliceAngles = []; + + var sm = this.sliceMargin; + if (this.fill == false) { + sm += this.lineWidth; + } + + var rprime; + var maxrprime = 0; + + var ang, ang1, ang2, shadowColor; + var sa = this.startAngle / 180 * Math.PI; + + // have to pre-draw shadows, so loop throgh here and calculate some values also. + for (var i=0, l=gd.length; i<l; i++) { + ang1 = (i == 0) ? sa : gd[i-1][1] + sa; + ang2 = gd[i][1] + sa; + + this._sliceAngles.push([ang1, ang2]); + + rprime = calcRPrime(ang1, ang2, this.sliceMargin, this.fill, this.lineWidth); + + if (Math.abs(ang2-ang1) > Math.PI) { + maxrprime = Math.max(rprime, maxrprime); + } + } + + if (this.diameter != null && this.diameter > 0) { + this._diameter = this.diameter - 2*maxrprime; + } + else { + this._diameter = d - 2*maxrprime; + } + + // Need to check for undersized pie. This can happen if + // plot area too small and legend is too big. + if (this._diameter < 6) { + $.jqplot.log('Diameter of pie too small, not rendering.'); + return; + } + + var r = this._radius = this._diameter/2; + + this._center = [(cw - trans * offx)/2 + trans * offx + maxrprime * Math.cos(sa), (ch - trans*offy)/2 + trans * offy + maxrprime * Math.sin(sa)]; + + if (this.shadow) { + for (var i=0, l=gd.length; i<l; i++) { + shadowColor = 'rgba(0,0,0,'+this.shadowAlpha+')'; + this.renderer.drawSlice.call (this, ctx, this._sliceAngles[i][0], this._sliceAngles[i][1], shadowColor, true); + } + } + + for (var i=0; i<gd.length; i++) { + + this.renderer.drawSlice.call (this, ctx, this._sliceAngles[i][0], this._sliceAngles[i][1], colorGenerator.next(), false); + + if (this.showDataLabels && gd[i][2]*100 >= this.dataLabelThreshold) { + var fstr, avgang = (this._sliceAngles[i][0] + this._sliceAngles[i][1])/2, label; + + if (this.dataLabels == 'label') { + fstr = this.dataLabelFormatString || '%s'; + label = $.jqplot.sprintf(fstr, gd[i][0]); + } + else if (this.dataLabels == 'value') { + fstr = this.dataLabelFormatString || '%d'; + label = $.jqplot.sprintf(fstr, this.data[i][1]); + } + else if (this.dataLabels == 'percent') { + fstr = this.dataLabelFormatString || '%d%%'; + label = $.jqplot.sprintf(fstr, gd[i][2]*100); + } + else if (this.dataLabels.constructor == Array) { + fstr = this.dataLabelFormatString || '%s'; + label = $.jqplot.sprintf(fstr, this.dataLabels[i]); + } + + var fact = (this._radius ) * this.dataLabelPositionFactor + this.sliceMargin + this.dataLabelNudge; + + var x = this._center[0] + Math.cos(avgang) * fact + this.canvas._offsets.left; + var y = this._center[1] + Math.sin(avgang) * fact + this.canvas._offsets.top; + + var labelelem = $('<div class="jqplot-pie-series jqplot-data-label" style="position:absolute;">' + label + '</div>').insertBefore(plot.eventCanvas._elem); + if (this.dataLabelCenterOn) { + x -= labelelem.width()/2; + y -= labelelem.height()/2; + } + else { + x -= labelelem.width() * Math.sin(avgang/2); + y -= labelelem.height()/2; + } + x = Math.round(x); + y = Math.round(y); + labelelem.css({left: x, top: y}); + } + } + }; + + $.jqplot.PieAxisRenderer = function() { + $.jqplot.LinearAxisRenderer.call(this); + }; + + $.jqplot.PieAxisRenderer.prototype = new $.jqplot.LinearAxisRenderer(); + $.jqplot.PieAxisRenderer.prototype.constructor = $.jqplot.PieAxisRenderer; + + + // There are no traditional axes on a pie chart. We just need to provide + // dummy objects with properties so the plot will render. + // called with scope of axis object. + $.jqplot.PieAxisRenderer.prototype.init = function(options){ + // + this.tickRenderer = $.jqplot.PieTickRenderer; + $.extend(true, this, options); + // I don't think I'm going to need _dataBounds here. + // have to go Axis scaling in a way to fit chart onto plot area + // and provide u2p and p2u functionality for mouse cursor, etc. + // for convienence set _dataBounds to 0 and 100 and + // set min/max to 0 and 100. + this._dataBounds = {min:0, max:100}; + this.min = 0; + this.max = 100; + this.showTicks = false; + this.ticks = []; + this.showMark = false; + this.show = false; + }; + + + + + $.jqplot.PieLegendRenderer = function(){ + $.jqplot.TableLegendRenderer.call(this); + }; + + $.jqplot.PieLegendRenderer.prototype = new $.jqplot.TableLegendRenderer(); + $.jqplot.PieLegendRenderer.prototype.constructor = $.jqplot.PieLegendRenderer; + + /** + * Class: $.jqplot.PieLegendRenderer + * Legend Renderer specific to pie plots. Set by default + * when user creates a pie plot. + */ + $.jqplot.PieLegendRenderer.prototype.init = function(options) { + // Group: Properties + // + // prop: numberRows + // Maximum number of rows in the legend. 0 or null for unlimited. + this.numberRows = null; + // prop: numberColumns + // Maximum number of columns in the legend. 0 or null for unlimited. + this.numberColumns = null; + $.extend(true, this, options); + }; + + // called with context of legend + $.jqplot.PieLegendRenderer.prototype.draw = function() { + var legend = this; + if (this.show) { + var series = this._series; + + + this._elem = $(document.createElement('table')); + this._elem.addClass('jqplot-table-legend'); + + var ss = {position:'absolute'}; + if (this.background) { + ss['background'] = this.background; + } + if (this.border) { + ss['border'] = this.border; + } + if (this.fontSize) { + ss['fontSize'] = this.fontSize; + } + if (this.fontFamily) { + ss['fontFamily'] = this.fontFamily; + } + if (this.textColor) { + ss['textColor'] = this.textColor; + } + if (this.marginTop != null) { + ss['marginTop'] = this.marginTop; + } + if (this.marginBottom != null) { + ss['marginBottom'] = this.marginBottom; + } + if (this.marginLeft != null) { + ss['marginLeft'] = this.marginLeft; + } + if (this.marginRight != null) { + ss['marginRight'] = this.marginRight; + } + + this._elem.css(ss); + + // Pie charts legends don't go by number of series, but by number of data points + // in the series. Refactor things here for that. + + var pad = false, + reverse = false, + nr, + nc; + var s = series[0]; + var colorGenerator = new $.jqplot.ColorGenerator(s.seriesColors); + + if (s.show) { + var pd = s.data; + if (this.numberRows) { + nr = this.numberRows; + if (!this.numberColumns){ + nc = Math.ceil(pd.length/nr); + } + else{ + nc = this.numberColumns; + } + } + else if (this.numberColumns) { + nc = this.numberColumns; + nr = Math.ceil(pd.length/this.numberColumns); + } + else { + nr = pd.length; + nc = 1; + } + + var i, j; + var tr, td1, td2; + var lt, rs, color; + var idx = 0; + var div0, div1; + + for (i=0; i<nr; i++) { + tr = $(document.createElement('tr')); + tr.addClass('jqplot-table-legend'); + + if (reverse){ + tr.prependTo(this._elem); + } + + else{ + tr.appendTo(this._elem); + } + + for (j=0; j<nc; j++) { + if (idx < pd.length){ + lt = this.labels[idx] || pd[idx][0].toString(); + color = colorGenerator.next(); + if (!reverse){ + if (i>0){ + pad = true; + } + else{ + pad = false; + } + } + else{ + if (i == nr -1){ + pad = false; + } + else{ + pad = true; + } + } + rs = (pad) ? this.rowSpacing : '0'; + + + + td1 = $(document.createElement('td')); + td1.addClass('jqplot-table-legend jqplot-table-legend-swatch'); + td1.css({textAlign: 'center', paddingTop: rs}); + + div0 = $(document.createElement('div')); + div0.addClass('jqplot-table-legend-swatch-outline'); + div1 = $(document.createElement('div')); + div1.addClass('jqplot-table-legend-swatch'); + div1.css({backgroundColor: color, borderColor: color}); + td1.append(div0.append(div1)); + + td2 = $(document.createElement('td')); + td2.addClass('jqplot-table-legend jqplot-table-legend-label'); + td2.css('paddingTop', rs); + + if (this.escapeHtml){ + td2.text(lt); + } + else { + td2.html(lt); + } + if (reverse) { + td2.prependTo(tr); + td1.prependTo(tr); + } + else { + td1.appendTo(tr); + td2.appendTo(tr); + } + pad = true; + } + idx++; + } + } + } + } + return this._elem; + }; + + $.jqplot.PieRenderer.prototype.handleMove = function(ev, gridpos, datapos, neighbor, plot) { + if (neighbor) { + var ins = [neighbor.seriesIndex, neighbor.pointIndex, neighbor.data]; + plot.target.trigger('jqplotDataMouseOver', ins); + if (plot.series[ins[0]].highlightMouseOver && !(ins[0] == plot.plugins.pieRenderer.highlightedSeriesIndex && ins[1] == plot.series[ins[0]]._highlightedPoint)) { + plot.target.trigger('jqplotDataHighlight', ins); + highlight (plot, ins[0], ins[1]); + } + } + else if (neighbor == null) { + unhighlight (plot); + } + }; + + + // this.eventCanvas._elem.bind($.jqplot.eventListenerHooks[i][0], {plot:this}, $.jqplot.eventListenerHooks[i][1]); + + // setup default renderers for axes and legend so user doesn't have to + // called with scope of plot + function preInit(target, data, options) { + options = options || {}; + options.axesDefaults = options.axesDefaults || {}; + options.legend = options.legend || {}; + options.seriesDefaults = options.seriesDefaults || {}; + // only set these if there is a pie series + var setopts = false; + if (options.seriesDefaults.renderer == $.jqplot.PieRenderer) { + setopts = true; + } + else if (options.series) { + for (var i=0; i < options.series.length; i++) { + if (options.series[i].renderer == $.jqplot.PieRenderer) { + setopts = true; + } + } + } + + if (setopts) { + options.axesDefaults.renderer = $.jqplot.PieAxisRenderer; + options.legend.renderer = $.jqplot.PieLegendRenderer; + options.legend.preDraw = true; + options.seriesDefaults.pointLabels = {show: false}; + } + } + + function postInit(target, data, options) { + for (var i=0; i<this.series.length; i++) { + if (this.series[i].renderer.constructor == $.jqplot.PieRenderer) { + // don't allow mouseover and mousedown at same time. + if (this.series[i].highlightMouseOver) { + this.series[i].highlightMouseDown = false; + } + } + } + } + + // called with scope of plot + function postParseOptions(options) { + for (var i=0; i<this.series.length; i++) { + this.series[i].seriesColors = this.seriesColors; + this.series[i].colorGenerator = $.jqplot.colorGenerator; + } + } + + function highlight (plot, sidx, pidx) { + var s = plot.series[sidx]; + var canvas = plot.plugins.pieRenderer.highlightCanvas; + canvas._ctx.clearRect(0,0,canvas._ctx.canvas.width, canvas._ctx.canvas.height); + s._highlightedPoint = pidx; + plot.plugins.pieRenderer.highlightedSeriesIndex = sidx; + s.renderer.drawSlice.call(s, canvas._ctx, s._sliceAngles[pidx][0], s._sliceAngles[pidx][1], s.highlightColorGenerator.get(pidx), false); + } + + function unhighlight (plot) { + var canvas = plot.plugins.pieRenderer.highlightCanvas; + canvas._ctx.clearRect(0,0, canvas._ctx.canvas.width, canvas._ctx.canvas.height); + for (var i=0; i<plot.series.length; i++) { + plot.series[i]._highlightedPoint = null; + } + plot.plugins.pieRenderer.highlightedSeriesIndex = null; + plot.target.trigger('jqplotDataUnhighlight'); + } + + function handleMove(ev, gridpos, datapos, neighbor, plot) { + if (neighbor) { + var ins = [neighbor.seriesIndex, neighbor.pointIndex, neighbor.data]; + var evt1 = jQuery.Event('jqplotDataMouseOver'); + evt1.pageX = ev.pageX; + evt1.pageY = ev.pageY; + plot.target.trigger(evt1, ins); + if (plot.series[ins[0]].highlightMouseOver && !(ins[0] == plot.plugins.pieRenderer.highlightedSeriesIndex && ins[1] == plot.series[ins[0]]._highlightedPoint)) { + var evt = jQuery.Event('jqplotDataHighlight'); + evt.which = ev.which; + evt.pageX = ev.pageX; + evt.pageY = ev.pageY; + plot.target.trigger(evt, ins); + highlight (plot, ins[0], ins[1]); + } + } + else if (neighbor == null) { + unhighlight (plot); + } + } + + function handleMouseDown(ev, gridpos, datapos, neighbor, plot) { + if (neighbor) { + var ins = [neighbor.seriesIndex, neighbor.pointIndex, neighbor.data]; + if (plot.series[ins[0]].highlightMouseDown && !(ins[0] == plot.plugins.pieRenderer.highlightedSeriesIndex && ins[1] == plot.series[ins[0]]._highlightedPoint)) { + var evt = jQuery.Event('jqplotDataHighlight'); + evt.which = ev.which; + evt.pageX = ev.pageX; + evt.pageY = ev.pageY; + plot.target.trigger(evt, ins); + highlight (plot, ins[0], ins[1]); + } + } + else if (neighbor == null) { + unhighlight (plot); + } + } + + function handleMouseUp(ev, gridpos, datapos, neighbor, plot) { + var idx = plot.plugins.pieRenderer.highlightedSeriesIndex; + if (idx != null && plot.series[idx].highlightMouseDown) { + unhighlight(plot); + } + } + + function handleClick(ev, gridpos, datapos, neighbor, plot) { + if (neighbor) { + var ins = [neighbor.seriesIndex, neighbor.pointIndex, neighbor.data]; + var evt = jQuery.Event('jqplotDataClick'); + evt.which = ev.which; + evt.pageX = ev.pageX; + evt.pageY = ev.pageY; + plot.target.trigger(evt, ins); + } + } + + function handleRightClick(ev, gridpos, datapos, neighbor, plot) { + if (neighbor) { + var ins = [neighbor.seriesIndex, neighbor.pointIndex, neighbor.data]; + var idx = plot.plugins.pieRenderer.highlightedSeriesIndex; + if (idx != null && plot.series[idx].highlightMouseDown) { + unhighlight(plot); + } + var evt = jQuery.Event('jqplotDataRightClick'); + evt.which = ev.which; + evt.pageX = ev.pageX; + evt.pageY = ev.pageY; + plot.target.trigger(evt, ins); + } + } + + // called within context of plot + // create a canvas which we can draw on. + // insert it before the eventCanvas, so eventCanvas will still capture events. + function postPlotDraw() { + // Memory Leaks patch + if (this.plugins.pieRenderer && this.plugins.pieRenderer.highlightCanvas) { + this.plugins.pieRenderer.highlightCanvas.resetCanvas(); + this.plugins.pieRenderer.highlightCanvas = null; + } + + this.plugins.pieRenderer = {highlightedSeriesIndex:null}; + this.plugins.pieRenderer.highlightCanvas = new $.jqplot.GenericCanvas(); + + // do we have any data labels? if so, put highlight canvas before those + var labels = $(this.targetId+' .jqplot-data-label'); + if (labels.length) { + $(labels[0]).before(this.plugins.pieRenderer.highlightCanvas.createElement(this._gridPadding, 'jqplot-pieRenderer-highlight-canvas', this._plotDimensions, this)); + } + // else put highlight canvas before event canvas. + else { + this.eventCanvas._elem.before(this.plugins.pieRenderer.highlightCanvas.createElement(this._gridPadding, 'jqplot-pieRenderer-highlight-canvas', this._plotDimensions, this)); + } + + var hctx = this.plugins.pieRenderer.highlightCanvas.setContext(); + this.eventCanvas._elem.bind('mouseleave', {plot:this}, function (ev) { unhighlight(ev.data.plot); }); + } + + $.jqplot.preInitHooks.push(preInit); + + $.jqplot.PieTickRenderer = function() { + $.jqplot.AxisTickRenderer.call(this); + }; + + $.jqplot.PieTickRenderer.prototype = new $.jqplot.AxisTickRenderer(); + $.jqplot.PieTickRenderer.prototype.constructor = $.jqplot.PieTickRenderer; + +})(jQuery); + +
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