assets/javascripts/jquery/jquery.jqplot/plugins/jqplot.funnelRenderer.js
/**
* jqPlot
* Pure JavaScript plotting plugin using jQuery
*
* Version: 1.0.0
* Revision: 1095
*
* Copyright (c) 2009-2011 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.FunnelRenderer
* Plugin renderer to draw a funnel chart.
* x values, if present, will be used as labels.
* y values give area size.
*
* Funnel charts will draw a single series
* only.
*
* To use this renderer, you need to include the
* funnel renderer plugin, for example:
*
* > <script type="text/javascript" src="plugins/jqplot.funnelRenderer.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.FunnelRenderer,
* > rendererOptions:{
* > sectionMargin: 12,
* > widthRatio: 0.3
* > }
* > }
* > });
*
* IMPORTANT
*
* *The funnel renderer will reorder data in descending order* so the largest value in
* the data set is first and displayed on top of the funnel. Data will then
* be displayed in descending order down the funnel. The area of each funnel
* section will correspond to the value of each data point relative to the sum
* of all values. That is section area is proportional to section value divided by
* sum of all section values.
*
* If your data is not in descending order when passed into the plot, *it will be
* reordered* when stored in the series.data property. A copy of the unordered
* data is kept in the series._unorderedData property.
*
* A funnel plot will trigger events on the plot target
* according to user interaction. All events return the event object,
* the series index, the point (section) index, and the point data for
* the appropriate section. *Note* the point index will referr to the ordered
* data, not the original unordered data.
*
* 'jqplotDataMouseOver' - triggered when mousing over a section.
* 'jqplotDataHighlight' - triggered the first time user mouses over a section,
* if highlighting is enabled.
* 'jqplotDataUnhighlight' - triggered when a user moves the mouse out of
* a highlighted section.
* 'jqplotDataClick' - triggered when the user clicks on a section.
* 'jqplotDataRightClick' - tiggered when the user right clicks on a section if
* the "captureRightClick" option is set to true on the plot.
*/
$.jqplot.FunnelRenderer = function(){
$.jqplot.LineRenderer.call(this);
};
$.jqplot.FunnelRenderer.prototype = new $.jqplot.LineRenderer();
$.jqplot.FunnelRenderer.prototype.constructor = $.jqplot.FunnelRenderer;
// called with scope of a series
$.jqplot.FunnelRenderer.prototype.init = function(options, plot) {
// Group: Properties
//
// prop: padding
// padding between the funnel and plot edges, legend, etc.
this.padding = {top: 20, right: 20, bottom: 20, left: 20};
// prop: sectionMargin
// spacing between funnel sections in pixels.
this.sectionMargin = 6;
// prop: fill
// true or false, wether to fill the areas.
this.fill = true;
// prop: shadowOffset
// offset of the shadow from the area 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 area when moused over.
// This must be false to enable highlightMouseDown to highlight when clicking on a area.
this.highlightMouseOver = true;
// prop: highlightMouseDown
// True to highlight when a mouse button is pressed over a area.
// This will be disabled if highlightMouseOver is true.
this.highlightMouseDown = false;
// prop: highlightColors
// array of colors to use when highlighting an area.
this.highlightColors = [];
// prop: widthRatio
// The ratio of the width of the top of the funnel to the bottom.
// a ratio of 0 will make an upside down pyramid.
this.widthRatio = 0.2;
// prop: lineWidth
// width of line if areas are stroked and not filled.
this.lineWidth = 2;
// 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;
this._type = 'funnel';
this.tickRenderer = $.jqplot.FunnelTickRenderer;
// 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);
// index of the currenty highlighted point, if any
this._highlightedPoint = null;
// lengths of bases, or horizontal sides of areas of trapezoid.
this._bases = [];
// total area
this._atot;
// areas of segments.
this._areas = [];
// vertical lengths of segments.
this._lengths = [];
// angle of the funnel to vertical.
this._angle;
this._dataIndices = [];
// sort data
this._unorderedData = $.extend(true, [], this.data);
var idxs = $.extend(true, [], this.data);
for (var i=0; i<idxs.length; i++) {
idxs[i].push(i);
}
this.data.sort( function (a, b) { return b[1] - a[1]; } );
idxs.sort( function (a, b) { return b[1] - a[1]; });
for (var i=0; i<idxs.length; i++) {
this._dataIndices.push(idxs[i][2]);
}
// 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] + 0.4 * (255 - newrgb[j]);
newrgb[j] = parseInt(newrgb[j], 10);
}
this.highlightColors.push('rgb('+newrgb[0]+','+newrgb[1]+','+newrgb[2]+')');
}
}
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);
};
// gridData will be of form [label, percentage of total]
$.jqplot.FunnelRenderer.prototype.setGridData = function(plot) {
// set gridData property. This will hold angle in radians of each data point.
var sum = 0;
var td = [];
for (var i=0; i<this.data.length; i++){
sum += this.data[i][1];
td.push([this.data[i][0], this.data[i][1]]);
}
// normalize y values, so areas are proportional.
for (var i=0; i<td.length; i++) {
td[i][1] = td[i][1]/sum;
}
this._bases = new Array(td.length + 1);
this._lengths = new Array(td.length);
this.gridData = td;
};
$.jqplot.FunnelRenderer.prototype.makeGridData = function(data, plot) {
// set gridData property. This will hold angle in radians of each data point.
var sum = 0;
var td = [];
for (var i=0; i<this.data.length; i++){
sum += this.data[i][1];
td.push([this.data[i][0], this.data[i][1]]);
}
// normalize y values, so areas are proportional.
for (var i=0; i<td.length; i++) {
td[i][1] = td[i][1]/sum;
}
this._bases = new Array(td.length + 1);
this._lengths = new Array(td.length);
return td;
};
$.jqplot.FunnelRenderer.prototype.drawSection = function (ctx, vertices, color, isShadow) {
var fill = this.fill;
var lineWidth = this.lineWidth;
ctx.save();
if (isShadow) {
for (var i=0; i<this.shadowDepth; i++) {
ctx.save();
ctx.translate(this.shadowOffset*Math.cos(this.shadowAngle/180*Math.PI), this.shadowOffset*Math.sin(this.shadowAngle/180*Math.PI));
doDraw();
}
}
else {
doDraw();
}
function doDraw () {
ctx.beginPath();
ctx.fillStyle = color;
ctx.strokeStyle = color;
ctx.lineWidth = lineWidth;
ctx.moveTo(vertices[0][0], vertices[0][1]);
for (var i=1; i<4; i++) {
ctx.lineTo(vertices[i][0], vertices[i][1]);
}
ctx.closePath();
if (fill) {
ctx.fill();
}
else {
ctx.stroke();
}
}
if (isShadow) {
for (var i=0; i<this.shadowDepth; i++) {
ctx.restore();
}
}
ctx.restore();
};
// called with scope of series
$.jqplot.FunnelRenderer.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;
this._areas = [];
// var colorGenerator = new this.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 loff = (trans==1) ? this.padding.left + offx : this.padding.left;
var toff = (trans==1) ? this.padding.top + offy : this.padding.top;
var roff = (trans==-1) ? this.padding.right + offx : this.padding.right;
var boff = (trans==-1) ? this.padding.bottom + offy : this.padding.bottom;
var shadow = (opts.shadow != undefined) ? opts.shadow : this.shadow;
var showLine = (opts.showLine != undefined) ? opts.showLine : this.showLine;
var fill = (opts.fill != undefined) ? opts.fill : this.fill;
var cw = ctx.canvas.width;
var ch = ctx.canvas.height;
this._bases[0] = cw - loff - roff;
var ltot = this._length = ch - toff - boff;
var hend = this._bases[0]*this.widthRatio;
this._atot = ltot/2 * (this._bases[0] + this._bases[0]*this.widthRatio);
this._angle = Math.atan((this._bases[0] - hend)/2/ltot);
for (i=0; i<gd.length; i++) {
this._areas.push(gd[i][1] * this._atot);
}
var guess, err, count, lsum=0;
var tolerance = 0.0001;
for (i=0; i<this._areas.length; i++) {
guess = this._areas[i]/this._bases[i];
err = 999999;
this._lengths[i] = guess;
count = 0;
while (err > this._lengths[i]*tolerance && count < 100) {
this._lengths[i] = this._areas[i]/(this._bases[i] - this._lengths[i] * Math.tan(this._angle));
err = Math.abs(this._lengths[i] - guess);
this._bases[i+1] = this._bases[i] - (2*this._lengths[i]*Math.tan(this._angle));
guess = this._lengths[i];
count++;
}
lsum += this._lengths[i];
}
// figure out vertices of each section
this._vertices = new Array(gd.length);
// these are 4 coners of entire trapezoid
var p0 = [loff, toff],
p1 = [loff+this._bases[0], toff],
p2 = [loff + (this._bases[0] - this._bases[this._bases.length-1])/2, toff + this._length],
p3 = [p2[0] + this._bases[this._bases.length-1], p2[1]];
// equations of right and left sides, returns x, y values given height of section (y value)
function findleft (l) {
var m = (p0[1] - p2[1])/(p0[0] - p2[0]);
var b = p0[1] - m*p0[0];
var y = l + p0[1];
return [(y - b)/m, y];
}
function findright (l) {
var m = (p1[1] - p3[1])/(p1[0] - p3[0]);
var b = p1[1] - m*p1[0];
var y = l + p1[1];
return [(y - b)/m, y];
}
var x = offx, y = offy;
var h=0, adj=0;
for (i=0; i<gd.length; i++) {
this._vertices[i] = new Array();
var v = this._vertices[i];
var sm = this.sectionMargin;
if (i == 0) {
adj = 0;
}
if (i == 1) {
adj = sm/3;
}
else if (i > 0 && i < gd.length-1) {
adj = sm/2;
}
else if (i == gd.length -1) {
adj = 2*sm/3;
}
v.push(findleft(h+adj));
v.push(findright(h+adj));
h += this._lengths[i];
if (i == 0) {
adj = -2*sm/3;
}
else if (i > 0 && i < gd.length-1) {
adj = -sm/2;
}
else if (i == gd.length - 1) {
adj = 0;
}
v.push(findright(h+adj));
v.push(findleft(h+adj));
}
if (this.shadow) {
var shadowColor = 'rgba(0,0,0,'+this.shadowAlpha+')';
for (var i=0; i<gd.length; i++) {
this.renderer.drawSection.call (this, ctx, this._vertices[i], shadowColor, true);
}
}
for (var i=0; i<gd.length; i++) {
var v = this._vertices[i];
this.renderer.drawSection.call (this, ctx, v, this.seriesColors[i]);
if (this.showDataLabels && gd[i][1]*100 >= this.dataLabelThreshold) {
var fstr, 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][1]*100);
}
else if (this.dataLabels.constructor == Array) {
fstr = this.dataLabelFormatString || '%s';
label = $.jqplot.sprintf(fstr, this.dataLabels[this._dataIndices[i]]);
}
var fact = (this._radius ) * this.dataLabelPositionFactor + this.sliceMargin + this.dataLabelNudge;
var x = (v[0][0] + v[1][0])/2 + this.canvas._offsets.left;
var y = (v[1][1] + v[2][1])/2 + this.canvas._offsets.top;
var labelelem = $('<span class="jqplot-funnel-series jqplot-data-label" style="position:absolute;">' + label + '</span>').insertBefore(plot.eventCanvas._elem);
x -= labelelem.width()/2;
y -= labelelem.height()/2;
x = Math.round(x);
y = Math.round(y);
labelelem.css({left: x, top: y});
}
}
};
$.jqplot.FunnelAxisRenderer = function() {
$.jqplot.LinearAxisRenderer.call(this);
};
$.jqplot.FunnelAxisRenderer.prototype = new $.jqplot.LinearAxisRenderer();
$.jqplot.FunnelAxisRenderer.prototype.constructor = $.jqplot.FunnelAxisRenderer;
// There are no traditional axes on a funnel chart. We just need to provide
// dummy objects with properties so the plot will render.
// called with scope of axis object.
$.jqplot.FunnelAxisRenderer.prototype.init = function(options){
//
this.tickRenderer = $.jqplot.FunnelTickRenderer;
$.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;
};
/**
* Class: $.jqplot.FunnelLegendRenderer
* Legend Renderer specific to funnel plots. Set by default
* when the user creates a funnel plot.
*/
$.jqplot.FunnelLegendRenderer = function(){
$.jqplot.TableLegendRenderer.call(this);
};
$.jqplot.FunnelLegendRenderer.prototype = new $.jqplot.TableLegendRenderer();
$.jqplot.FunnelLegendRenderer.prototype.constructor = $.jqplot.FunnelLegendRenderer;
$.jqplot.FunnelLegendRenderer.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.FunnelLegendRenderer.prototype.draw = function() {
var legend = this;
if (this.show) {
var series = this._series;
var ss = 'position:absolute;';
ss += (this.background) ? 'background:'+this.background+';' : '';
ss += (this.border) ? 'border:'+this.border+';' : '';
ss += (this.fontSize) ? 'font-size:'+this.fontSize+';' : '';
ss += (this.fontFamily) ? 'font-family:'+this.fontFamily+';' : '';
ss += (this.textColor) ? 'color:'+this.textColor+';' : '';
ss += (this.marginTop != null) ? 'margin-top:'+this.marginTop+';' : '';
ss += (this.marginBottom != null) ? 'margin-bottom:'+this.marginBottom+';' : '';
ss += (this.marginLeft != null) ? 'margin-left:'+this.marginLeft+';' : '';
ss += (this.marginRight != null) ? 'margin-right:'+this.marginRight+';' : '';
this._elem = $('<table class="jqplot-table-legend" style="'+ss+'"></table>');
// Funnel 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, tr, td1, td2, lt, rs, color;
var idx = 0;
for (i=0; i<nr; i++) {
if (reverse){
tr = $('<tr class="jqplot-table-legend"></tr>').prependTo(this._elem);
}
else{
tr = $('<tr class="jqplot-table-legend"></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 = $('<td class="jqplot-table-legend" style="text-align:center;padding-top:'+rs+';">'+
'<div><div class="jqplot-table-legend-swatch" style="border-color:'+color+';"></div>'+
'</div></td>');
td2 = $('<td class="jqplot-table-legend" style="padding-top:'+rs+';"></td>');
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.FunnelLegendRenderer.prototype.pack = function(offsets) {
// if (this.show) {
// // fake a grid for positioning
// var grid = {_top:offsets.top, _left:offsets.left, _right:offsets.right, _bottom:this._plotDimensions.height - offsets.bottom};
// if (this.placement == 'insideGrid') {
// switch (this.location) {
// case 'nw':
// var a = grid._left + this.xoffset;
// var b = grid._top + this.yoffset;
// this._elem.css('left', a);
// this._elem.css('top', b);
// break;
// case 'n':
// var a = (offsets.left + (this._plotDimensions.width - offsets.right))/2 - this.getWidth()/2;
// var b = grid._top + this.yoffset;
// this._elem.css('left', a);
// this._elem.css('top', b);
// break;
// case 'ne':
// var a = offsets.right + this.xoffset;
// var b = grid._top + this.yoffset;
// this._elem.css({right:a, top:b});
// break;
// case 'e':
// var a = offsets.right + this.xoffset;
// var b = (offsets.top + (this._plotDimensions.height - offsets.bottom))/2 - this.getHeight()/2;
// this._elem.css({right:a, top:b});
// break;
// case 'se':
// var a = offsets.right + this.xoffset;
// var b = offsets.bottom + this.yoffset;
// this._elem.css({right:a, bottom:b});
// break;
// case 's':
// var a = (offsets.left + (this._plotDimensions.width - offsets.right))/2 - this.getWidth()/2;
// var b = offsets.bottom + this.yoffset;
// this._elem.css({left:a, bottom:b});
// break;
// case 'sw':
// var a = grid._left + this.xoffset;
// var b = offsets.bottom + this.yoffset;
// this._elem.css({left:a, bottom:b});
// break;
// case 'w':
// var a = grid._left + this.xoffset;
// var b = (offsets.top + (this._plotDimensions.height - offsets.bottom))/2 - this.getHeight()/2;
// this._elem.css({left:a, top:b});
// break;
// default: // same as 'se'
// var a = grid._right - this.xoffset;
// var b = grid._bottom + this.yoffset;
// this._elem.css({right:a, bottom:b});
// break;
// }
//
// }
// else {
// switch (this.location) {
// case 'nw':
// var a = this._plotDimensions.width - grid._left + this.xoffset;
// var b = grid._top + this.yoffset;
// this._elem.css('right', a);
// this._elem.css('top', b);
// break;
// case 'n':
// var a = (offsets.left + (this._plotDimensions.width - offsets.right))/2 - this.getWidth()/2;
// var b = this._plotDimensions.height - grid._top + this.yoffset;
// this._elem.css('left', a);
// this._elem.css('bottom', b);
// break;
// case 'ne':
// var a = this._plotDimensions.width - offsets.right + this.xoffset;
// var b = grid._top + this.yoffset;
// this._elem.css({left:a, top:b});
// break;
// case 'e':
// var a = this._plotDimensions.width - offsets.right + this.xoffset;
// var b = (offsets.top + (this._plotDimensions.height - offsets.bottom))/2 - this.getHeight()/2;
// this._elem.css({left:a, top:b});
// break;
// case 'se':
// var a = this._plotDimensions.width - offsets.right + this.xoffset;
// var b = offsets.bottom + this.yoffset;
// this._elem.css({left:a, bottom:b});
// break;
// case 's':
// var a = (offsets.left + (this._plotDimensions.width - offsets.right))/2 - this.getWidth()/2;
// var b = this._plotDimensions.height - offsets.bottom + this.yoffset;
// this._elem.css({left:a, top:b});
// break;
// case 'sw':
// var a = this._plotDimensions.width - grid._left + this.xoffset;
// var b = offsets.bottom + this.yoffset;
// this._elem.css({right:a, bottom:b});
// break;
// case 'w':
// var a = this._plotDimensions.width - grid._left + this.xoffset;
// var b = (offsets.top + (this._plotDimensions.height - offsets.bottom))/2 - this.getHeight()/2;
// this._elem.css({right:a, top:b});
// break;
// default: // same as 'se'
// var a = grid._right - this.xoffset;
// var b = grid._bottom + this.yoffset;
// this._elem.css({right:a, bottom:b});
// break;
// }
// }
// }
// };
// 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 funnel series
var setopts = false;
if (options.seriesDefaults.renderer == $.jqplot.FunnelRenderer) {
setopts = true;
}
else if (options.series) {
for (var i=0; i < options.series.length; i++) {
if (options.series[i].renderer == $.jqplot.FunnelRenderer) {
setopts = true;
}
}
}
if (setopts) {
options.axesDefaults.renderer = $.jqplot.FunnelAxisRenderer;
options.legend.renderer = $.jqplot.FunnelLegendRenderer;
options.legend.preDraw = true;
options.sortData = false;
options.seriesDefaults.pointLabels = {show: false};
}
}
function postInit(target, data, options) {
// if multiple series, add a reference to the previous one so that
// funnel rings can nest.
for (var i=0; i<this.series.length; i++) {
if (this.series[i].renderer.constructor == $.jqplot.FunnelRenderer) {
// 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.funnelRenderer.highlightCanvas;
canvas._ctx.clearRect(0,0,canvas._ctx.canvas.width, canvas._ctx.canvas.height);
s._highlightedPoint = pidx;
plot.plugins.funnelRenderer.highlightedSeriesIndex = sidx;
s.renderer.drawSection.call(s, canvas._ctx, s._vertices[pidx], s.highlightColors[pidx], false);
}
function unhighlight (plot) {
var canvas = plot.plugins.funnelRenderer.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.funnelRenderer.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.funnelRenderer.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.funnelRenderer.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.funnelRenderer.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.funnelRenderer.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.funnelRenderer && this.plugins.funnelRenderer.highlightCanvas) {
this.plugins.funnelRenderer.highlightCanvas.resetCanvas();
this.plugins.funnelRenderer.highlightCanvas = null;
}
this.plugins.funnelRenderer = {};
this.plugins.funnelRenderer.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.funnelRenderer.highlightCanvas.createElement(this._gridPadding, 'jqplot-funnelRenderer-highlight-canvas', this._plotDimensions, this));
}
// else put highlight canvas before event canvas.
else {
this.eventCanvas._elem.before(this.plugins.funnelRenderer.highlightCanvas.createElement(this._gridPadding, 'jqplot-funnelRenderer-highlight-canvas', this._plotDimensions, this));
}
var hctx = this.plugins.funnelRenderer.highlightCanvas.setContext();
this.eventCanvas._elem.bind('mouseleave', {plot:this}, function (ev) { unhighlight(ev.data.plot); });
}
$.jqplot.preInitHooks.push(preInit);
$.jqplot.FunnelTickRenderer = function() {
$.jqplot.AxisTickRenderer.call(this);
};
$.jqplot.FunnelTickRenderer.prototype = new $.jqplot.AxisTickRenderer();
$.jqplot.FunnelTickRenderer.prototype.constructor = $.jqplot.FunnelTickRenderer;
})(jQuery);