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1252 lines
44 KiB
JavaScript
1252 lines
44 KiB
JavaScript
// version: 2015-11-02
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/**
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* o--------------------------------------------------------------------------------o
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* | This file is part of the RGraph package - you can learn more at: |
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* | |
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* | http://www.rgraph.net |
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* | |
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* | RGraph is dual licensed under the Open Source GPL (General Public License) |
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* | v2.0 license and a commercial license which means that you're not bound by |
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* | the terms of the GPL. The commercial license is just £99 (GBP) and you can |
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* | read about it here: |
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* | http://www.rgraph.net/license |
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* o--------------------------------------------------------------------------------o
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*/
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RGraph = window.RGraph || {isRGraph: true};
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/**
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* The bar chart constructor
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*
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* @param object canvas The canvas object
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* @param array data The chart data
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*/
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RGraph.Waterfall = function (conf)
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{
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/**
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* Allow for object config style
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*/
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if ( typeof conf === 'object'
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&& typeof conf.data === 'object'
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&& typeof conf.id === 'string') {
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var parseConfObjectForOptions = true; // Set this so the config is parsed (at the end of the constructor)
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} else {
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var conf = {
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id: conf,
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data: arguments[1]
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};
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}
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this.id = conf.id;
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this.canvas = document.getElementById(this.id);
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this.context = this.canvas.getContext ? this.canvas.getContext("2d") : null;
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this.canvas.__object__ = this;
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this.type = 'waterfall';
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this.max = 0;
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this.data = conf.data;
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this.isRGraph = true;
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this.coords = [];
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this.uid = RGraph.CreateUID();
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this.canvas.uid = this.canvas.uid ? this.canvas.uid : RGraph.CreateUID();
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this.colorsParsed = false;
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this.coordsText = [];
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this.original_colors = [];
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this.firstDraw = true; // After the first draw this will be false
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// Various config
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this.properties =
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{
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'chart.background.barcolor1': 'rgba(0,0,0,0)',
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'chart.background.barcolor2': 'rgba(0,0,0,0)',
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'chart.background.grid': true,
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'chart.background.grid.color': '#ddd',
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'chart.background.grid.width': 1,
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'chart.background.grid.hsize': 20,
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'chart.background.grid.vsize': 20,
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'chart.background.grid.vlines': true,
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'chart.background.grid.hlines': true,
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'chart.background.grid.border': true,
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'chart.background.grid.autofit':true,
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'chart.background.grid.autofit.align': true,
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'chart.background.grid.autofit.numhlines': 5,
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'chart.background.grid.autofit.numvlines': 20,
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'chart.background.image': null,
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'chart.background.hbars': null,
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'chart.linewidth': 1,
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'chart.axis.linewidth': 1,
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'chart.xaxispos': 'bottom',
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'chart.numxticks': null,
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'chart.numyticks': 10,
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'chart.hmargin': 5,
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'chart.strokestyle': '#666',
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'chart.axis.color': 'black',
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'chart.gutter.left': 25,
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'chart.gutter.right': 25,
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'chart.gutter.top': 25,
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'chart.gutter.bottom': 25,
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'chart.labels': [],
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'chart.labels.bold': false,
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'chart.ylabels': true,
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'chart.text.color': 'black',
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'chart.text.size': 12,
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'chart.text.angle': 0,
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'chart.text.font': 'Arial',
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'chart.ymax': null,
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'chart.title': '',
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'chart.title.color': 'black',
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'chart.title.background': null,
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'chart.title.hpos': null,
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'chart.title.vpos': null,
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'chart.title.bold': true,
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'chart.title.font': null,
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'chart.title.xaxis': '',
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'chart.title.yaxis': '',
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'chart.title.yaxis.bold': true,
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'chart.title.yaxis.size': null,
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'chart.title.yaxis.font': null,
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'chart.title.yaxis.color': null,
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'chart.title.xaxis.pos': null,
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'chart.title.yaxis.pos': null,
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'chart.title.yaxis.align': 'left',
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'chart.title.xaxis.bold': true,
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'chart.title.xaxis.size': null,
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'chart.title.xaxis.font': null,
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'chart.title.yaxis.x': null,
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'chart.title.yaxis.y': null,
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'chart.title.xaxis.x': null,
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'chart.title.xaxis.y': null,
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'chart.title.x': null,
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'chart.title.y': null,
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'chart.title.halign': null,
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'chart.title.valign': null,
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'chart.colors': ['Gradient(white:green)', 'Gradient(white:red)', 'Gradient(white:blue)'],
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'chart.shadow': false,
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'chart.shadow.color': '#666',
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'chart.shadow.offsetx': 3,
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'chart.shadow.offsety': 3,
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'chart.shadow.blur': 3,
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'chart.tooltips': null,
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'chart.tooltips.effect': 'fade',
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'chart.tooltips.css.class': 'RGraph_tooltip',
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'chart.tooltips.event': 'onclick',
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'chart.tooltips.highlight': true,
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'chart.tooltips.override': null,
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'chart.highlight.stroke': 'rgba(0,0,0,0)',
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'chart.highlight.fill': 'rgba(255,255,255,0.7)',
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'chart.contextmenu': null,
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'chart.units.pre': '',
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'chart.units.post': '',
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'chart.scale.decimals': 0,
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'chart.scale.point': '.',
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'chart.scale.thousand': ',',
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//'chart.scale.formatter': null,
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'chart.crosshairs': false,
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'chart.crosshairs.color': '#333',
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'chart.crosshairs.hline': true,
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'chart.crosshairs.vline': true,
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'chart.annotatable': false,
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'chart.annotate.color': 'black',
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'chart.zoom.factor': 1.5,
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'chart.zoom.fade.in': true,
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'chart.zoom.fade.out': true,
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'chart.zoom.hdir': 'right',
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'chart.zoom.vdir': 'down',
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'chart.zoom.frames': 25,
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'chart.zoom.delay': 16.666,
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'chart.zoom.shadow': true,
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'chart.zoom.background': true,
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'chart.resizable': false,
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'chart.resize.handle.background': null,
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'chart.noaxes': false,
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'chart.noxaxis': false,
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'chart.noyaxis': false,
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'chart.axis.color': 'black',
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'chart.total': true,
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'chart.multiplier.x': 1,
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'chart.multiplier.w': 1,
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'chart.events.click': null,
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'chart.events.mousemove': null,
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'chart.ylabels.count': 5
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}
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// Check for support
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if (!this.canvas) {
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alert('[WATERFALL] No canvas support');
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return;
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}
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/**
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* Create the $ objects
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*/
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for (var i=0; i<=this.data.length; ++i) {
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this['$' + i] = {}
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}
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/**
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* Translate half a pixel for antialiasing purposes - but only if it hasn't beeen
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* done already
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*/
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if (!this.canvas.__rgraph_aa_translated__) {
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this.context.translate(0.5,0.5);
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this.canvas.__rgraph_aa_translated__ = true;
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}
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// Short variable names
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var RG = RGraph,
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ca = this.canvas,
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co = ca.getContext('2d'),
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prop = this.properties,
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pa = RG.Path,
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pa2 = RG.path2,
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win = window,
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doc = document,
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ma = Math
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/**
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* "Decorate" the object with the generic effects if the effects library has been included
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*/
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if (RG.Effects && typeof RG.Effects.decorate === 'function') {
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RG.Effects.decorate(this);
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}
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/**
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* A setter
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*
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* @param name string The name of the property to set
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* @param value mixed The value of the property
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*/
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this.set =
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this.Set = function (name, value)
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{
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var value = typeof arguments[1] === 'undefined' ? null : arguments[1];
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/**
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* the number of arguments is only one and it's an
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* object - parse it for configuration data and return.
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*/
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if (arguments.length === 1 && typeof name === 'object') {
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RG.parseObjectStyleConfig(this, name);
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return this;
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}
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/**
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* This should be done first - prepend the propertyy name with "chart." if necessary
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*/
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if (name.substr(0,6) != 'chart.') {
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name = 'chart.' + name;
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}
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// Convert uppercase letters to dot+lower case letter
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name = name.replace(/([A-Z])/g, function (str)
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{
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return '.' + String(RegExp.$1).toLowerCase()
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});
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if (name == 'chart.total' && prop['chart.numxticks'] == null) {
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prop['chart.numxticks'] = this.data.length;
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}
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prop[name.toLowerCase()] = value;
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return this;
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};
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/**
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* A getter
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*
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* @param name string The name of the property to get
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*/
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this.get =
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this.Get = function (name)
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{
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/**
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* This should be done first - prepend the property name with "chart." if necessary
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*/
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if (name.substr(0,6) != 'chart.') {
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name = 'chart.' + name;
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}
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// Convert uppercase letters to dot+lower case letter
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name = name.replace(/([A-Z])/g, function (str)
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{
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return '.' + String(RegExp.$1).toLowerCase()
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});
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return prop[name.toLowerCase()];
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};
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/**
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* The function you call to draw the bar chart
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*/
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this.draw =
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this.Draw = function ()
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{
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/**
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* Fire the onbeforedraw event
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*/
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RGraph.FireCustomEvent(this, 'onbeforedraw');
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/**
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* Parse the colors. This allows for simple gradient syntax
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*/
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if (!this.colorsParsed) {
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this.parseColors();
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// Don't want to do this again
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this.colorsParsed = true;
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}
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/**
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* Draw the background image
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*/
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RGraph.DrawBackgroundImage(this);
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/**
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* This is new in May 2011 and facilitates indiviual gutter settings,
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* eg chart.gutter.left
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*/
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this.gutterLeft = prop['chart.gutter.left'];
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this.gutterRight = prop['chart.gutter.right'];
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this.gutterTop = prop['chart.gutter.top'];
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this.gutterBottom = prop['chart.gutter.bottom'];
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/**
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* Stop the coords array from growing uncontrollably
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*/
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this.coords = [];
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/**
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* Stop this growing uncontrollably
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*/
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this.coordsText = [];
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/**
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* This gets used a lot
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*/
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this.centery = ((ca.height - this.gutterTop - this.gutterBottom) / 2) + this.gutterTop;
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/**
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* Work out a few things. They need to be here because they depend on things you can change after you instantiate the object
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*/
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this.max = 0;
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this.grapharea = ca.height - this.gutterTop - this.gutterBottom;
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this.graphwidth = ca.width - this.gutterLeft - this.gutterRight;
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this.halfTextHeight = prop['chart.text.size'] / 2;
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/**
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* Work out the maximum value
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*/
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this.max = this.getMax(this.data);
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var decimals = prop['chart.scale.decimals'];
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this.scale2 = RGraph.getScale2(this, {'max':typeof(prop['chart.ymax']) == 'number' ? prop['chart.ymax'] : this.max,
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'min':prop['chart.xmin'],
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'strict': typeof(prop['chart.ymax']) == 'number' ? true : false,
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'scale.decimals':Number(decimals),
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'scale.point':prop['chart.scale.point'],
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'scale.thousand':prop['chart.scale.thousand'],
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'scale.round':prop['chart.scale.round'],
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'units.pre':prop['chart.units.pre'],
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'units.post':prop['chart.units.post'],
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'ylabels.count':prop['chart.ylabels.count']
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});
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this.max = this.scale2.max;
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// Draw the background hbars
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RGraph.DrawBars(this)
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// Progressively Draw the chart
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RG.background.Draw(this);
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this.DrawAxes();
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this.Drawbars();
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this.DrawLabels();
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/**
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* If the X axis is at the bottom - draw the it again so that it appears "on top" of the bars
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*/
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if (prop['chart.xaxispos'] == 'bottom' && prop['chart.noaxes'] == false && prop['chart.noxaxis'] == false) {
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co.strokeStyle = prop['chart.axis.color'];
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co.strokeRect(prop['chart.gutter.left'], ca.height - prop['chart.gutter.bottom'], ca.width - this.gutterLeft - this.gutterRight, 0);
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}
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/**
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* Setup the context menu if required
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*/
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if (prop['chart.contextmenu']) {
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RG.ShowContext(this);
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}
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/**
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* This function enables resizing
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*/
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if (prop['chart.resizable']) {
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RG.AllowResizing(this);
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}
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/**
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* This installs the event listeners
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*/
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RG.InstallEventListeners(this);
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/**
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* Fire the onfirstdraw event
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*/
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if (this.firstDraw) {
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RG.fireCustomEvent(this, 'onfirstdraw');
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this.firstDraw = false;
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this.firstDrawFunc();
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}
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/**
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* Fire the RGraph ondraw event
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*/
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RG.FireCustomEvent(this, 'ondraw');
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return this;
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};
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/**
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* Draws the charts axes
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*/
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this.drawAxes =
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this.DrawAxes = function ()
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{
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if (prop['chart.noaxes']) {
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return;
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}
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co.beginPath();
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co.strokeStyle = prop['chart.axis.color'];
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co.lineWidth = prop['chart.axis.linewidth'] + 0.001;
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// Draw the Y axis
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if (prop['chart.noyaxis'] == false) {
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co.moveTo(Math.round(this.gutterLeft), this.gutterTop);
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co.lineTo(Math.round(this.gutterLeft), ca.height - this.gutterBottom);
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}
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// Draw the X axis
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if (prop['chart.noxaxis'] == false) {
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// Center X axis
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if (prop['chart.xaxispos'] == 'center') {
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co.moveTo(this.gutterLeft, Math.round( ((ca.height - this.gutterTop - this.gutterBottom) / 2) + this.gutterTop));
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co.lineTo(ca.width - this.gutterRight, Math.round( ((ca.height - this.gutterTop - this.gutterBottom) / 2) + this.gutterTop));
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} else {
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co.moveTo(this.gutterLeft, Math.round(ca.height - this.gutterBottom));
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co.lineTo(ca.width - this.gutterRight, Math.round(ca.height - this.gutterBottom));
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}
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}
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var numYTicks = prop['chart.numyticks'];
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// Draw the Y tickmarks
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if (prop['chart.noyaxis'] == false && prop['chart.numyticks'] > 0) {
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var yTickGap = (ca.height - this.gutterTop - this.gutterBottom) / numYTicks;
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for (y=this.gutterTop; y < (ca.height - this.gutterBottom); y += yTickGap) {
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if (prop['chart.xaxispos'] == 'bottom' || (y != ((ca.height - this.gutterTop - this.gutterBottom) / 2) + this.gutterTop)) {
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co.moveTo(this.gutterLeft, Math.round( y));
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co.lineTo(this.gutterLeft - 3, Math.round( y));
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}
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}
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/**
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* If the X axis is not being shown, draw an extra tick
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*/
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if (prop['chart.noxaxis'] || prop['chart.xaxispos'] == 'center') {
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co.moveTo(this.gutterLeft - 3, Math.round(ca.height - this.gutterBottom));
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co.lineTo(this.gutterLeft, Math.round(ca.height - this.gutterBottom));
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}
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}
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// Draw the X tickmarks
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if (prop['chart.numxticks'] == null) {
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prop['chart.numxticks'] = this.data.length + (prop['chart.total'] ? 1 : 0)
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}
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if (prop['chart.noxaxis'] == false && prop['chart.numxticks'] > 0) {
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xTickGap = (ca.width - this.gutterLeft - this.gutterRight ) / prop['chart.numxticks'];
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if (prop['chart.xaxispos'] == 'center') {
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yStart = ((ca.height - this.gutterBottom - this.gutterTop) / 2) + this.gutterTop - 3;
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yEnd = ((ca.height - this.gutterBottom - this.gutterTop) / 2) + this.gutterTop + 3;
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} else {
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yStart = ca.height - this.gutterBottom;
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yEnd = (ca.height - this.gutterBottom) + 3;
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}
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for (x=this.gutterLeft + xTickGap; x<=ca.width - this.gutterRight + 1; x+=xTickGap) {
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co.moveTo(Math.round( x), yStart);
|
|
co.lineTo(Math.round( x), yEnd);
|
|
}
|
|
|
|
if (prop['chart.noyaxis']) {
|
|
co.moveTo(Math.round( this.gutterLeft), yStart);
|
|
co.lineTo(Math.round( this.gutterLeft), yEnd);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* If the Y axis is not being shown, draw an extra tick
|
|
*/
|
|
if (prop['chart.noyaxis'] && prop['chart.noxaxis'] == false) {
|
|
co.moveTo(Math.round( this.gutterLeft), ca.height - this.gutterBottom);
|
|
co.lineTo(Math.round( this.gutterLeft), ca.height - this.gutterBottom + 3);
|
|
}
|
|
|
|
co.stroke();
|
|
};
|
|
|
|
|
|
|
|
|
|
/**
|
|
* Draws the labels for the graph
|
|
*/
|
|
this.drawLabels =
|
|
this.DrawLabels = function ()
|
|
{
|
|
var context = co;
|
|
var numYLabels = 5; // Make this configurable
|
|
var interval = this.grapharea / numYLabels;
|
|
var font = prop['chart.text.font'];
|
|
var size = prop['chart.text.size'];
|
|
var color = prop['chart.text.color'];
|
|
var units_pre = prop['chart.units.pre'];
|
|
var units_post = prop['chart.units.post'];
|
|
|
|
co.beginPath();
|
|
co.fillStyle = color;
|
|
|
|
/**
|
|
* First, draw the Y labels
|
|
*/
|
|
if (prop['chart.ylabels']) {
|
|
if (prop['chart.xaxispos'] == 'center') {
|
|
|
|
var halfInterval = interval / 2;
|
|
var halfWay = ((ca.height - this.gutterTop - this.gutterBottom) / 2) + this.gutterTop;
|
|
|
|
for (var i=0,len=this.scale2.labels.length; i<len; ++i) {
|
|
RG.text2(this, {
|
|
'font':font,
|
|
'size':size,
|
|
'x':this.gutterLeft - 5,
|
|
'y': this.gutterTop + (((this.grapharea/2) / len) * i),
|
|
'text':this.scale2.labels[len - i - 1],
|
|
'valign':'center',
|
|
'halign':'right',
|
|
'tag': 'scale'
|
|
});
|
|
|
|
RG.Text2(this, {
|
|
'font':font,
|
|
'size':size,
|
|
'x':this.gutterLeft - 5,
|
|
'y': halfWay + (((this.grapharea/2) / len) * (i + 1)),
|
|
'text':this.scale2.labels[i],
|
|
'valign':'center',
|
|
'halign':'right',
|
|
'tag': 'scale'
|
|
});
|
|
}
|
|
|
|
} else {
|
|
|
|
for (var i=0,len=this.scale2.labels.length; i<len; ++i) {
|
|
RG.text2(this, {
|
|
'font':font,
|
|
'size':size,
|
|
'x':this.gutterLeft - 5,
|
|
'y': ca.height - this.gutterBottom - ((this.grapharea / len) * (i + 1)),
|
|
'text':this.scale2.labels[i],
|
|
'valign':'center',
|
|
'halign':'right',
|
|
'tag': 'scale'
|
|
});
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
* Now, draw the X labels
|
|
*/
|
|
if (prop['chart.labels'].length > 0) {
|
|
|
|
// Recalculate the interval for the X labels
|
|
interval = (ca.width - this.gutterLeft - this.gutterRight) / prop['chart.labels'].length;
|
|
|
|
var halign = 'center';
|
|
var angle = prop['chart.text.angle'];
|
|
|
|
if (angle) {
|
|
halign = 'right';
|
|
angle *= -1;
|
|
}
|
|
|
|
var labels = prop['chart.labels'],
|
|
labelsColor = prop['chart.labels.color'],
|
|
bold = prop['chart.labels.bold']
|
|
|
|
for (var i=0,len=labels.length; i<len; i+=1) {
|
|
RG.text2(this, {
|
|
'color': labelsColor,
|
|
'font':font,
|
|
'size':size,
|
|
'bold': bold,
|
|
'x':this.gutterLeft + (i * interval) + (interval / 2),
|
|
'y':ca.height - this.gutterBottom + 5 + this.halfTextHeight,
|
|
'text':labels[i],
|
|
'valign':'center',
|
|
'halign':halign,
|
|
'angle':angle,
|
|
'tag': 'labels'
|
|
});
|
|
}
|
|
}
|
|
|
|
co.stroke();
|
|
co.fill();
|
|
};
|
|
|
|
|
|
|
|
|
|
/**
|
|
* Draws the bars on to the chart
|
|
*/
|
|
this.drawbars =
|
|
this.Drawbars = function ()
|
|
{
|
|
var context = co;
|
|
var canvas = ca;
|
|
var hmargin = prop['chart.hmargin'];
|
|
var runningTotal = 0;
|
|
|
|
co.lineWidth = prop['chart.linewidth'] + 0.001;
|
|
|
|
for (var i=0,len=this.data.length; i<len; ++i) {
|
|
co.beginPath();
|
|
co.strokeStyle = prop['chart.strokestyle'];
|
|
|
|
var x = Math.round( this.gutterLeft + hmargin + (((this.graphwidth / (this.data.length + (prop['chart.total'] ? 1 : 0))) * i) * prop['chart.multiplier.x']));
|
|
var y = Math.round( this.gutterTop + this.grapharea - (i == 0 ? ((this.data[0] / this.max) * this.grapharea) : (this.data[i] > 0 ? ((runningTotal + this.data[i]) / this.max) * this.grapharea : (runningTotal / this.max) * this.grapharea)));
|
|
var w = ((ca.width - this.gutterLeft - this.gutterRight) / (this.data.length + (prop['chart.total'] ? 1 : 0 )) ) - (2 * prop['chart.hmargin']);
|
|
w = w * prop['chart.multiplier.w'];
|
|
var h = (Math.abs(this.data[i]) / this.max) * this.grapharea;
|
|
|
|
if (prop['chart.xaxispos'] == 'center') {
|
|
h /= 2;
|
|
y = (i == 0 ? ((this.data[0] / this.max) * this.grapharea) : (this.data[i] > 0 ? ((runningTotal + this.data[i]) / this.max) * this.grapharea : (runningTotal / this.max) * this.grapharea));
|
|
y = this.gutterTop + (this.grapharea/2) - (y / 2);
|
|
}
|
|
|
|
// Color
|
|
co.fillStyle = this.data[i] >= 0 ? prop['chart.colors'][0] : prop['chart.colors'][1];
|
|
|
|
|
|
if (prop['chart.shadow']) {
|
|
RG.SetShadow(this, prop['chart.shadow.color'], prop['chart.shadow.offsetx'], prop['chart.shadow.offsety'], prop['chart.shadow.blur']);
|
|
} else {
|
|
RG.NoShadow(this);
|
|
}
|
|
|
|
co.rect(x, y, w, h);
|
|
|
|
this.coords.push([x, y, w, h]);
|
|
|
|
runningTotal += this.data[i];
|
|
|
|
co.stroke();
|
|
co.fill();
|
|
}
|
|
|
|
// Store the total
|
|
this.total = runningTotal;
|
|
|
|
if (prop['chart.total']) {
|
|
|
|
// This is the height of the final bar
|
|
h = (runningTotal / this.max) * (this.grapharea / (prop['chart.xaxispos'] == 'center' ? 2 : 1));
|
|
|
|
/**
|
|
* Set the Y (ie the start point) value
|
|
*/
|
|
if (prop['chart.xaxispos'] == 'center') {
|
|
y = runningTotal > 0 ? this.centery - h : this.centery - h;
|
|
} else {
|
|
y = ca.height - this.gutterBottom - h;
|
|
}
|
|
|
|
// This is the X position of the final bar
|
|
x = x + (prop['chart.hmargin'] * 2) + w;
|
|
|
|
|
|
// Final color
|
|
co.fillStyle = prop['chart.colors'][2];
|
|
|
|
co.beginPath();
|
|
co.strokeRect(x, y, w, h);
|
|
co.fillRect(x, y, w, h);
|
|
co.stroke();
|
|
co.fill();
|
|
|
|
this.coords.push([x, y - (runningTotal > 0 ? 0 : Math.abs(h)), w, Math.abs(h)]);
|
|
}
|
|
|
|
RG.NoShadow(this);
|
|
|
|
/**
|
|
* This draws the connecting lines
|
|
*/
|
|
co.lineWidth = 1;
|
|
|
|
for (var i=1,len=this.coords.length; i<len; i+=1) {
|
|
co.strokeStyle = 'gray';
|
|
co.beginPath();
|
|
if (this.data[i - 1] > 0) {
|
|
co.moveTo(this.coords[i - 1][0] + this.coords[i - 1][2], Math.round( this.coords[i - 1][1]));
|
|
co.lineTo(this.coords[i - 1][0] + this.coords[i - 1][2] + (2 * hmargin), Math.round( this.coords[i - 1][1]));
|
|
} else {
|
|
co.moveTo(this.coords[i - 1][0] + this.coords[i - 1][2], Math.round( this.coords[i - 1][1] + this.coords[i - 1][3]));
|
|
co.lineTo(this.coords[i - 1][0] + this.coords[i - 1][2] + (2 * hmargin), Math.round( this.coords[i - 1][1] + this.coords[i - 1][3]));
|
|
}
|
|
co.stroke();
|
|
}
|
|
};
|
|
|
|
|
|
|
|
|
|
/**
|
|
* Not used by the class during creating the graph, but is used by event handlers
|
|
* to get the coordinates (if any) of the selected bar
|
|
*
|
|
* @param object e The event object
|
|
*/
|
|
this.getShape =
|
|
this.getBar = function (e)
|
|
{
|
|
/**
|
|
* Loop through the bars determining if the mouse is over a bar
|
|
*/
|
|
for (var i=0,len=this.coords.length; i<len; i++) {
|
|
|
|
var mouseCoords = RG.getMouseXY(e);
|
|
var mouseX = mouseCoords[0];
|
|
var mouseY = mouseCoords[1];
|
|
|
|
var left = this.coords[i][0];
|
|
var top = this.coords[i][1];
|
|
var width = this.coords[i][2];
|
|
var height = this.coords[i][3];
|
|
|
|
if ( mouseX >= left
|
|
&& mouseX <= (left + width)
|
|
&& mouseY >= top
|
|
&& mouseY <= top + height) {
|
|
|
|
var tooltip = RG.parseTooltipText(prop['chart.tooltips'], i);
|
|
|
|
return {0: this, 'object': this,
|
|
1: left, 'x': left,
|
|
2: top, 'y': top,
|
|
3: width, 'width': width,
|
|
4: height, 'height': height,
|
|
5: i, 'index': i,
|
|
'tooltip': tooltip};
|
|
}
|
|
}
|
|
|
|
return null;
|
|
};
|
|
|
|
|
|
|
|
|
|
/**
|
|
* The Waterfall is slightly different to Bar/Line charts so has this function to get the max value
|
|
*/
|
|
this.getMax = function (data)
|
|
{
|
|
var runningTotal = 0;
|
|
var max = 0;
|
|
|
|
for (var i=0,len=data.length; i<len; i+=1) {
|
|
runningTotal += data[i];
|
|
max = ma.max(max, ma.abs(runningTotal));
|
|
}
|
|
|
|
return max;
|
|
};
|
|
|
|
|
|
|
|
|
|
/**
|
|
* This function facilitates the installation of tooltip event listeners if
|
|
* tooltips are defined.
|
|
*/
|
|
this.allowTooltips =
|
|
this.AllowTooltips = function ()
|
|
{
|
|
// Preload any tooltip images that are used in the tooltips
|
|
RG.PreLoadTooltipImages(this);
|
|
|
|
|
|
/**
|
|
* This installs the window mousedown event listener that lears any
|
|
* highlight that may be visible.
|
|
*/
|
|
RG.InstallWindowMousedownTooltipListener(this);
|
|
|
|
|
|
/**
|
|
* This installs the canvas mousemove event listener. This function
|
|
* controls the pointer shape.
|
|
*/
|
|
RG.InstallCanvasMousemoveTooltipListener(this);
|
|
|
|
|
|
/**
|
|
* This installs the canvas mouseup event listener. This is the
|
|
* function that actually shows the appropriate tooltip (if any).
|
|
*/
|
|
RG.InstallCanvasMouseupTooltipListener(this);
|
|
};
|
|
|
|
|
|
|
|
|
|
/**
|
|
* Each object type has its own Highlight() function which highlights the appropriate shape
|
|
*
|
|
* @param object shape The shape to highlight
|
|
*/
|
|
this.highlight =
|
|
this.Highlight = function (shape)
|
|
{
|
|
// Add the new highlight
|
|
RG.Highlight.Rect(this, shape);
|
|
};
|
|
|
|
|
|
|
|
|
|
/**
|
|
* The getObjectByXY() worker method. Don't call this call:
|
|
*
|
|
* RGraph.ObjectRegistry.getObjectByXY(e)
|
|
*
|
|
* @param object e The event object
|
|
*/
|
|
this.getObjectByXY = function (e)
|
|
{
|
|
var mouseXY = RG.getMouseXY(e);
|
|
|
|
if (
|
|
mouseXY[0] > this.gutterLeft
|
|
&& mouseXY[0] < (ca.width - this.gutterRight)
|
|
&& mouseXY[1] > this.gutterTop
|
|
&& mouseXY[1] < (ca.height - this.gutterBottom)
|
|
) {
|
|
|
|
return this;
|
|
}
|
|
};
|
|
|
|
|
|
|
|
|
|
/**
|
|
* This function positions a tooltip when it is displayed
|
|
*
|
|
* @param obj object The chart object
|
|
* @param int x The X coordinate specified for the tooltip
|
|
* @param int y The Y coordinate specified for the tooltip
|
|
* @param objec tooltip The tooltips DIV element
|
|
*/
|
|
this.positionTooltip = function (obj, x, y, tooltip, idx)
|
|
{
|
|
var coordX = obj.coords[tooltip.__index__][0];
|
|
var coordY = obj.coords[tooltip.__index__][1];
|
|
var coordW = obj.coords[tooltip.__index__][2];
|
|
var coordH = obj.coords[tooltip.__index__][3];
|
|
var canvasXY = RG.getCanvasXY(obj.canvas);
|
|
var gutterLeft = obj.gutterLeft;
|
|
var gutterTop = obj.gutterTop;
|
|
var width = tooltip.offsetWidth;
|
|
var height = tooltip.offsetHeight;
|
|
var value = obj.data[idx];
|
|
|
|
/**
|
|
* Change the value to be the total if necessary
|
|
*/
|
|
if (tooltip.__index__ == obj.data.length) {
|
|
value = obj.total;
|
|
}
|
|
|
|
// Set the top position
|
|
tooltip.style.left = 0;
|
|
tooltip.style.top = canvasXY[1] + coordY - height - 7 + 'px';
|
|
|
|
|
|
/**
|
|
* If the tooltip is for a negative value - position it underneath the bar
|
|
*/
|
|
if (value < 0) {
|
|
tooltip.style.top = canvasXY[1] + coordY + coordH + 7 + 'px';
|
|
}
|
|
|
|
|
|
// By default any overflow is hidden
|
|
tooltip.style.overflow = '';
|
|
|
|
// The arrow
|
|
var img = new Image();
|
|
img.id = '__rgraph_tooltip_pointer__';
|
|
img.style.position = 'absolute';
|
|
if (value >= 0) {
|
|
img.src = 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABEAAAAFCAYAAACjKgd3AAAARUlEQVQYV2NkQAN79+797+RkhC4M5+/bd47B2dmZEVkBCgcmgcsgbAaA9GA1BCSBbhAuA/AagmwQPgMIGgIzCD0M0AMMAEFVIAa6UQgcAAAAAElFTkSuQmCC';
|
|
img.style.top = (tooltip.offsetHeight - 2) + 'px';
|
|
} else {
|
|
img.src = 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAsAAAAFCAMAAACkeOZkAAAAK3RFWHRDcmVhdGlvbiBUaW1lAFNhdCA2IE9jdCAyMDEyIDEyOjQ5OjMyIC0wMDAw2S1RlgAAAAd0SU1FB9wKBgszM4Ed2k4AAAAJcEhZcwAACxIAAAsSAdLdfvwAAAAEZ0FNQQAAsY8L/GEFAAAACVBMVEX/AAC9vb3//+92Pom0AAAAAXRSTlMAQObYZgAAAB1JREFUeNpjYAABRgY4YGRiRDCZYBwQE8qBMEEcAANCACqByy1sAAAAAElFTkSuQmCC';
|
|
img.style.top = '-5px';
|
|
}
|
|
tooltip.appendChild(img);
|
|
|
|
// Reposition the tooltip if at the edges:
|
|
|
|
// LEFT edge
|
|
if ((canvasXY[0] + coordX - (width / 2)) < 10) {
|
|
tooltip.style.left = (canvasXY[0] + coordX - (width * 0.1)) + (coordW / 2) + 'px';
|
|
img.style.left = ((width * 0.1) - 8.5) + 'px';
|
|
|
|
// RIGHT edge
|
|
} else if ((canvasXY[0] + coordX + (width / 2)) > doc.body.offsetWidth) {
|
|
tooltip.style.left = canvasXY[0] + coordX - (width * 0.9) + (coordW / 2) + 'px';
|
|
img.style.left = ((width * 0.9) - 8.5) + 'px';
|
|
|
|
// Default positioning - CENTERED
|
|
} else {
|
|
tooltip.style.left = (canvasXY[0] + coordX + (coordW / 2) - (width * 0.5)) + 'px';
|
|
img.style.left = ((width * 0.5) - 8.5) + 'px';
|
|
}
|
|
};
|
|
|
|
|
|
|
|
|
|
/**
|
|
* This method returns the appropriate Y coord for the given value
|
|
*
|
|
* @param number value The value
|
|
*/
|
|
this.getYCoord = function (value)
|
|
{
|
|
if (value > this.max) {
|
|
return null;
|
|
}
|
|
|
|
if (prop['chart.xaxispos'] == 'center') {
|
|
|
|
if (value < (-1 * this.max)) {
|
|
return null;
|
|
}
|
|
|
|
var coord = (value / this.max) * (this.grapharea / 2);
|
|
return this.gutterTop + (this.grapharea / 2) - coord;
|
|
|
|
} else {
|
|
|
|
if (value < 0) {
|
|
return null;
|
|
}
|
|
|
|
var coord = (value / this.max) * this.grapharea;
|
|
coord = coord + this.gutterTop;
|
|
return ca.height - coord;
|
|
}
|
|
};
|
|
|
|
|
|
|
|
|
|
/**
|
|
* This allows for easy specification of gradients
|
|
*/
|
|
this.parseColors = function ()
|
|
{
|
|
// Save the original colors so that they can be restored when the canvas is reset
|
|
if (this.original_colors.length === 0) {
|
|
this.original_colors['chart.colors'] = RG.array_clone(prop['chart.colors']);
|
|
this.original_colors['chart.key.colors'] = RG.array_clone(prop['chart.key.colors']);
|
|
this.original_colors['chart.crosshairs.color'] = RG.array_clone(prop['chart.crosshairs.color']);
|
|
this.original_colors['chart.highlight.stroke'] = RG.array_clone(prop['chart.highlight.stroke']);
|
|
this.original_colors['chart.highlight.fill'] = RG.array_clone(prop['chart.highlight.fill']);
|
|
this.original_colors['chart.background.barcolor1'] = RG.array_clone(prop['chart.background.barcolor1']);
|
|
this.original_colors['chart.background.barcolor2'] = RG.array_clone(prop['chart.background.barcolor2']);
|
|
this.original_colors['chart.background.grid.color'] = RG.array_clone(prop['chart.background.grid.color']);
|
|
this.original_colors['chart.strokestyle'] = RG.array_clone(prop['chart.strokestyle']);
|
|
this.original_colors['chart.axis.color'] = RG.array_clone(prop['chart.axis.color']);
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
// chart.colors
|
|
var colors = prop['chart.colors'];
|
|
|
|
if (colors) {
|
|
for (var i=0,len=colors.length; i<len; ++i) {
|
|
colors[i] = this.parseSingleColorForGradient(colors[i]);
|
|
}
|
|
}
|
|
|
|
// chart.key.colors
|
|
var colors = prop['chart.key.colors'];
|
|
|
|
if (colors) {
|
|
for (var i=0,len=colors.length; i<len; ++i) {
|
|
colors[i] = this.parseSingleColorForGradient(colors[i]);
|
|
}
|
|
}
|
|
|
|
prop['chart.crosshairs.color'] = this.parseSingleColorForGradient(prop['chart.crosshairs.color']);
|
|
prop['chart.highlight.stroke'] = this.parseSingleColorForGradient(prop['chart.highlight.stroke']);
|
|
prop['chart.highlight.fill'] = this.parseSingleColorForGradient(prop['chart.highlight.fill']);
|
|
prop['chart.background.barcolor1'] = this.parseSingleColorForGradient(prop['chart.background.barcolor1']);
|
|
prop['chart.background.barcolor2'] = this.parseSingleColorForGradient(prop['chart.background.barcolor2']);
|
|
prop['chart.background.grid.color'] = this.parseSingleColorForGradient(prop['chart.background.grid.color']);
|
|
prop['chart.strokestyle'] = this.parseSingleColorForGradient(prop['chart.strokestyle']);
|
|
prop['chart.axis.color'] = this.parseSingleColorForGradient(prop['chart.axis.color']);
|
|
};
|
|
|
|
|
|
|
|
|
|
/**
|
|
* Use this function to reset the object to the post-constructor state. Eg reset colors if
|
|
* need be etc
|
|
*/
|
|
this.reset = function ()
|
|
{
|
|
};
|
|
|
|
|
|
|
|
|
|
/**
|
|
* This parses a single color value
|
|
*
|
|
* @param string color The color to parse for gradients
|
|
*/
|
|
this.parseSingleColorForGradient = function (color)
|
|
{
|
|
if (!color || typeof color != 'string') {
|
|
return color;
|
|
}
|
|
|
|
if (typeof color === 'string' && color.match(/^gradient\((.*)\)$/i)) {
|
|
|
|
var parts = RegExp.$1.split(':');
|
|
|
|
// Create the gradient
|
|
|
|
var grad = co.createLinearGradient(0,ca.height - prop['chart.gutter.bottom'], 0, prop['chart.gutter.top']);
|
|
|
|
var diff = 1 / (parts.length - 1);
|
|
|
|
grad.addColorStop(0, RG.trim(parts[0]));
|
|
|
|
for (var j=1,len=parts.length; j<len; ++j) {
|
|
grad.addColorStop(j * diff, RG.trim(parts[j]));
|
|
}
|
|
}
|
|
|
|
return grad ? grad : color;
|
|
};
|
|
|
|
|
|
|
|
|
|
/**
|
|
* Using a function to add events makes it easier to facilitate method chaining
|
|
*
|
|
* @param string type The type of even to add
|
|
* @param function func
|
|
*/
|
|
this.on = function (type, func)
|
|
{
|
|
if (type.substr(0,2) !== 'on') {
|
|
type = 'on' + type;
|
|
}
|
|
|
|
this[type] = func;
|
|
|
|
return this;
|
|
};
|
|
|
|
|
|
|
|
|
|
/**
|
|
* This function runs once only
|
|
* (put at the end of the file (before any effects))
|
|
*/
|
|
this.firstDrawFunc = function ()
|
|
{
|
|
};
|
|
|
|
|
|
|
|
|
|
/**
|
|
* Waterfall Grow
|
|
*
|
|
* @param object Options. You can pass frames here - which should be a number
|
|
* @param function An optional function which is called when the animation is finished
|
|
*/
|
|
this.grow = function ()
|
|
{
|
|
var opt = arguments[0] || {};
|
|
var callback = arguments[1] || function () {};
|
|
var frames = opt.frames || 30;
|
|
var numFrame = 0;
|
|
var obj = this;
|
|
var data = RG.array_clone(obj.data);
|
|
|
|
//Reset The data to zeros
|
|
for (var i=0,len=obj.data.length; i<len; ++i) {
|
|
obj.data[i] /= frames;
|
|
}
|
|
|
|
/**
|
|
* Fix the scale
|
|
*/
|
|
if (obj.Get('chart.ymax') == null) {
|
|
var max = obj.getMax(data);
|
|
var scale2 = RG.getScale2(obj, {'max':max});
|
|
obj.Set('chart.ymax', scale2.max);
|
|
}
|
|
|
|
//obj.Set('chart.multiplier.x', 0);
|
|
//obj.Set('chart.multiplier.w', 0);
|
|
|
|
function iterator ()
|
|
{
|
|
for (var i=0; i<obj.data.length; ++i) {
|
|
|
|
// This produces a very slight easing effect
|
|
obj.data[i] = data[i] * RG.Effects.getEasingMultiplier(frames, numFrame);
|
|
}
|
|
|
|
RGraph.clear(obj.canvas);
|
|
RGraph.redrawCanvas(obj.canvas);
|
|
|
|
if (++numFrame < frames) {
|
|
RGraph.Effects.updateCanvas(iterator);
|
|
} else {
|
|
callback(obj);
|
|
}
|
|
}
|
|
|
|
iterator();
|
|
|
|
return this;
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
RG.att(ca);
|
|
|
|
|
|
/**
|
|
* Now, because canvases can support multiple charts, canvases must always be registered
|
|
*/
|
|
RG.Register(this);
|
|
|
|
|
|
|
|
|
|
/**
|
|
* This is the 'end' of the constructor so if the first argument
|
|
* contains configuration data - handle that.
|
|
*/
|
|
if (parseConfObjectForOptions) {
|
|
RG.parseObjectStyleConfig(this, conf.options);
|
|
}
|
|
|
|
|
|
|
|
|
|
return this;
|
|
}; |