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1794 lines
69 KiB
JavaScript
1794 lines
69 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 horizontal bar chart constructor. The horizontal bar is a minor variant
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* on the bar chart. If you have big labels, this may be useful as there is usually
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* more space available for them.
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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.HBar = 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 id = conf.id
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var canvas = document.getElementById(id);
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var data = conf.data;
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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 id = conf;
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var canvas = document.getElementById(id);
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var data = arguments[1];
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}
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this.id = id;
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this.canvas = canvas;
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this.context = this.canvas.getContext ? this.canvas.getContext("2d", {alpha: (typeof id === 'object' && id.alpha === false) ? false : true}) : null;
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this.canvas.__object__ = this;
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this.data = data;
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this.type = 'hbar';
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this.isRGraph = true;
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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.coords = [];
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this.coords2 = [];
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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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/**
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* Compatibility with older browsers
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*/
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//RGraph.OldBrowserCompat(this.context);
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this.max = 0;
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this.stackedOrGrouped = false;
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// Default properties
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this.properties =
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{
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'chart.gutter.left': 75,
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'chart.gutter.left.autosize': false,
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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.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': 25,
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'chart.background.grid.vsize': 25,
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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.hlines': true,
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'chart.background.grid.vlines': 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': null,
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'chart.background.grid.autofit.numvlines': 5,
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'chart.background.grid.dashed': false,
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'chart.background.grid.dotted': false,
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'chart.background.color': null,
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'chart.linewidth': 1,
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'chart.title': '',
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'chart.title.background': null,
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'chart.title.xaxis': '',
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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': '',
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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': 0.8,
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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.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.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.text.size': 12,
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'chart.text.color': 'black',
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'chart.text.font': 'Arial',
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'chart.colors': ['Gradient(white:red)', 'Gradient(white:blue)', 'Gradient(white:green)', 'Gradient(white:pink)', 'Gradient(white:yellow)', 'Gradient(white:cyan)', 'Gradient(white:navy)', 'Gradient(white:gray)', 'Gradient(white:black)'],
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'chart.colors.sequential': false,
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'chart.xlabels.specific': null,
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'chart.labels': [],
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'chart.labels.bold': false,
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'chart.labels.color': null,
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'chart.labels.above': false,
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'chart.labels.above.decimals': 0,
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'chart.labels.above.specific': null,
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'chart.xlabels': true,
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'chart.xlabels.count': 5,
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'chart.contextmenu': null,
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'chart.key': null,
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'chart.key.background': 'white',
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'chart.key.position': 'graph',
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'chart.key.halign': 'right',
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'chart.key.shadow': false,
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'chart.key.shadow.color': '#666',
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'chart.key.shadow.blur': 3,
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'chart.key.shadow.offsetx': 2,
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'chart.key.shadow.offsety': 2,
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'chart.key.position.gutter.boxed': false,
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'chart.key.position.x': null,
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'chart.key.position.y': null,
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'chart.key.color.shape': 'square',
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'chart.key.rounded': true,
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'chart.key.linewidth': 1,
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'chart.key.colors': null,
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'chart.key.interactive': false,
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'chart.key.interactive.highlight.chart.stroke': 'black',
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'chart.key.interactive.highlight.chart.fill':'rgba(255,255,255,0.7)',
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'chart.key.interactive.highlight.label':'rgba(255,0,0,0.2)',
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'chart.key.text.color': 'black',
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'chart.units.pre': '',
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'chart.units.post': '',
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'chart.units.ingraph': false,
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'chart.strokestyle': 'rgba(0,0,0,0)',
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'chart.xmin': 0,
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'chart.xmax': 0,
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'chart.axis.color': 'black',
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'chart.shadow': false,
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'chart.shadow.color': '#666',
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'chart.shadow.blur': 3,
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'chart.shadow.offsetx': 3,
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'chart.shadow.offsety': 3,
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'chart.vmargin': 2,
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'chart.vmargin.grouped': 2,
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'chart.grouping': 'grouped',
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'chart.tooltips': null,
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'chart.tooltips.event': 'onclick',
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'chart.tooltips.effect': 'fade',
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'chart.tooltips.css.class': 'RGraph_tooltip',
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'chart.tooltips.highlight': true,
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'chart.highlight.fill': 'rgba(255,255,255,0.7)',
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'chart.highlight.stroke': 'rgba(0,0,0,0)',
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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.zoom.action': 'zoom',
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'chart.resizable': false,
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'chart.resize.handle.adjust': [0,0],
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'chart.resize.handle.background': null,
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'chart.scale.point': '.',
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'chart.scale.thousand': ',',
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'chart.scale.decimals': null,
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'chart.noredraw': false,
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'chart.events.click': null,
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'chart.events.mousemove': null,
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'chart.noxaxis': false,
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'chart.noyaxis': false,
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'chart.noaxes': false,
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'chart.noxtickmarks': false,
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'chart.noytickmarks': false,
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'chart.numyticks': data.length,
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'chart.numxticks': 10
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}
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// Check for support
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if (!this.canvas) {
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alert('[HBAR] No canvas support');
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return;
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}
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for (i=0,len=this.data.length; i<len; ++i) {
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if (typeof this.data[i] == 'object') {
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this.stackedOrGrouped = true;
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}
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}
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/**
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* Create the dollar objects so that functions can be added to them
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*/
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var linear_data = RGraph.arrayLinearize(data);
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for (var i=0,len=linear_data.length; i<len; ++i) {
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this['$' + i] = {};
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}
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/**
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* Create the linear data array
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*/
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this.data_arr = RGraph.array_linearize(this.data);
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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)
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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.labels.abovebar') {
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name = 'chart.labels.above';
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}
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prop[name] = 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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if (name == 'chart.labels.abovebar') {
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name = 'chart.labels.above';
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}
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return prop[name];
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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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RG.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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* Accomodate autosizing the left gutter
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*/
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if (prop['chart.gutter.left.autosize']) {
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var len = 0;
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var labels = prop['chart.labels'];
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var font = prop['chart.text.font'];
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var size = prop['chart.text.size'];
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for (var i=0; i<labels.length; i+=1) {
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var length = RG.measureText(labels[i], false, font, size)[0] || 0
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len = ma.max(len, length);
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}
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prop['chart.gutter.left'] = len + 10;
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}
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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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this.coords2 = [];
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this.coordsText = [];
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this.max = 0;
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/**
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* Check for chart.xmin in stacked charts
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*/
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if (prop['chart.xmin'] > 0 && prop['chart.grouping'] == 'stacked') {
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alert('[HBAR] Using chart.xmin is not supported with stacked charts, resetting chart.xmin to zero');
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this.Set('chart.xmin', 0);
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}
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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 before you
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* call Draw() but after you instantiate the object
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*/
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this.graphwidth = ca.width - this.gutterLeft - this.gutterRight;
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this.graphheight = ca.height - this.gutterTop - this.gutterBottom;
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this.halfgrapharea = this.grapharea / 2;
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this.halfTextHeight = prop['chart.text.size'] / 2;
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// Progressively Draw the chart
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RG.Background.draw(this);
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this.Drawbars();
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this.DrawAxes();
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this.DrawLabels();
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// Draw the key if necessary
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if (prop['chart.key'] && prop['chart.key'].length) {
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RG.DrawKey(this, prop['chart.key'], prop['chart.colors']);
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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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* Draw "in graph" labels
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*/
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RG.DrawInGraphLabels(this);
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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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* Used in chaining. Runs a function there and then - not waiting for
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* the events to fire (eg the onbeforedraw event)
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*
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* @param function func The function to execute
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*/
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this.exec = function (func)
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{
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func(this);
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return this;
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};
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/**
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* This draws the 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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var halfway = ma.round((this.graphwidth / 2) + this.gutterLeft);
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co.beginPath();
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co.lineWidth = prop['chart.axis.linewidth'] ? prop['chart.axis.linewidth'] + 0.001 : 1.001;
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co.strokeStyle = prop['chart.axis.color'];
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// Draw the Y axis
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if (prop['chart.noyaxis'] == false && prop['chart.noaxes'] == false) {
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if (prop['chart.yaxispos'] == 'center') {
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co.moveTo(halfway, this.gutterTop);
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co.lineTo(halfway, ca.height - this.gutterBottom);
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} else if (prop['chart.yaxispos'] == 'right') {
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co.moveTo(ca.width - this.gutterRight, this.gutterTop);
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co.lineTo(ca.width - this.gutterRight, ca.height - this.gutterBottom);
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} else {
|
|
co.moveTo(this.gutterLeft, this.gutterTop);
|
|
co.lineTo(this.gutterLeft, ca.height - this.gutterBottom);
|
|
}
|
|
}
|
|
|
|
// Draw the X axis
|
|
if (prop['chart.noxaxis'] == false && prop['chart.noaxes'] == false) {
|
|
co.moveTo(this.gutterLeft +0.001, ca.height - this.gutterBottom + 0.001);
|
|
co.lineTo(ca.width - this.gutterRight + 0.001, ca.height - this.gutterBottom + 0.001);
|
|
}
|
|
|
|
// Draw the Y tickmarks
|
|
if ( prop['chart.noytickmarks'] == false
|
|
&& prop['chart.noyaxis'] == false
|
|
&& prop['chart.numyticks'] > 0
|
|
&& prop['chart.noaxes'] == false
|
|
) {
|
|
|
|
var yTickGap = (ca.height - this.gutterTop - this.gutterBottom) / (prop['chart.numyticks'] > 0 ? prop['chart.numyticks'] : this.data.length);
|
|
|
|
for (y=this.gutterTop; y<(ca.height - this.gutterBottom - 1); y+=yTickGap) {
|
|
if (prop['chart.yaxispos'] == 'center') {
|
|
co.moveTo(halfway + 3, ma.round(y));
|
|
co.lineTo(halfway - 3, ma.round(y));
|
|
|
|
} else if (prop['chart.yaxispos'] == 'right') {
|
|
co.moveTo(ca.width - this.gutterRight, ma.round(y));
|
|
co.lineTo(ca.width - this.gutterRight + 3, ma.round(y));
|
|
|
|
} else {
|
|
co.moveTo(this.gutterLeft, ma.round(y));
|
|
co.lineTo( this.gutterLeft - 3, ma.round(y));
|
|
}
|
|
}
|
|
|
|
// If the X axis isn't being shown draw the end tick
|
|
if (prop['chart.noxaxis'] == true) {
|
|
if (prop['chart.yaxispos'] == 'center') {
|
|
co.moveTo(halfway + 3, ma.round(y));
|
|
co.lineTo(halfway - 3, ma.round(y));
|
|
|
|
} else if (prop['chart.yaxispos'] == 'right') {
|
|
co.moveTo(ca.width - this.gutterRight, ma.round(y));
|
|
co.lineTo(ca.width - this.gutterRight + 3, ma.round(y));
|
|
|
|
} else {
|
|
co.moveTo(this.gutterLeft, ma.round(y));
|
|
co.lineTo( this.gutterLeft - 3, ma.round(y));
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
// Draw the X tickmarks
|
|
if ( prop['chart.noxtickmarks'] == false
|
|
&& prop['chart.noxaxis'] == false
|
|
&& prop['chart.numxticks'] > 0
|
|
&& prop['chart.noaxes'] == false) {
|
|
|
|
xTickGap = (ca.width - this.gutterLeft - this.gutterRight ) / prop['chart.numxticks'];
|
|
yStart = ca.height - this.gutterBottom;
|
|
yEnd = (ca.height - this.gutterBottom) + 3;
|
|
|
|
|
|
|
|
|
|
|
|
var i = prop['chart.numxticks']
|
|
|
|
while(i--) {
|
|
|
|
var x = ca.width - this.gutterRight - (i * xTickGap);
|
|
|
|
if (prop['chart.yaxispos'] === 'right') {
|
|
x -= xTickGap;
|
|
}
|
|
|
|
co.moveTo(ma.round(x), yStart);
|
|
co.lineTo(ma.round(x), yEnd);
|
|
}
|
|
|
|
|
|
|
|
if (prop['chart.yaxispos'] === 'center') {
|
|
var i = 5; while (i--) {
|
|
var x = this.gutterLeft + (xTickGap * i);
|
|
|
|
co.moveTo(ma.round(x), yStart);
|
|
co.lineTo(ma.round(x), yEnd);
|
|
|
|
}
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
// If the Y axis isn't being shown draw the end tick
|
|
if (prop['chart.noyaxis'] == true) {
|
|
co.moveTo(this.gutterLeft, ma.round(yStart));
|
|
co.lineTo( this.gutterLeft, ma.round(yEnd));
|
|
}
|
|
}
|
|
co.stroke();
|
|
|
|
/**
|
|
* Reset the linewidth
|
|
*/
|
|
co.lineWidth = 1;
|
|
};
|
|
|
|
|
|
|
|
|
|
/**
|
|
* This draws the labels for the graph
|
|
*/
|
|
this.drawLabels =
|
|
this.DrawLabels = function ()
|
|
{
|
|
var units_pre = prop['chart.units.pre'];
|
|
var units_post = prop['chart.units.post'];
|
|
var text_size = prop['chart.text.size'];
|
|
var font = prop['chart.text.font'];
|
|
|
|
|
|
|
|
/**
|
|
* Set the units to blank if they're to be used for ingraph labels only
|
|
*/
|
|
if (prop['chart.units.ingraph']) {
|
|
units_pre = '';
|
|
units_post = '';
|
|
}
|
|
|
|
|
|
/**
|
|
* Draw the X axis labels
|
|
*/
|
|
if (prop['chart.xlabels']) {
|
|
|
|
/**
|
|
* Specific X labels
|
|
*/
|
|
if (RG.isArray(prop['chart.xlabels.specific'])) {
|
|
|
|
if (prop['chart.yaxispos'] == 'center') {
|
|
|
|
var halfGraphWidth = this.graphwidth / 2;
|
|
var labels = prop['chart.xlabels.specific'];
|
|
var interval = (this.graphwidth / 2) / (labels.length - 1);
|
|
|
|
co.fillStyle = prop['chart.text.color'];
|
|
|
|
for (var i=0; i<labels.length; i+=1) {
|
|
RG.Text2(this, {'font':font,
|
|
'size':text_size,
|
|
'x':this.gutterLeft + halfGraphWidth + (interval * i),
|
|
'y':ca.height - this.gutterBottom,
|
|
'text':labels[i],
|
|
'valign':'top',
|
|
'halign':'center',
|
|
'tag': 'scale'});
|
|
}
|
|
|
|
for (var i=(labels.length - 1); i>0; i-=1) {
|
|
RG.Text2(this, {'font':font,
|
|
'size':text_size,
|
|
'x':this.gutterLeft + (interval * (labels.length - i - 1)),
|
|
'y':ca.height - this.gutterBottom,
|
|
'text':labels[i],
|
|
'valign':'top',
|
|
'halign':'center',
|
|
'tag': 'scale'});
|
|
}
|
|
|
|
} else if (prop['chart.yaxispos'] == 'right') {
|
|
|
|
var labels = prop['chart.xlabels.specific'];
|
|
var interval = this.graphwidth / (labels.length - 1);
|
|
|
|
co.fillStyle = prop['chart.text.color'];
|
|
|
|
for (var i=0; i<labels.length; i+=1) {
|
|
RG.Text2(this, {'font':font,
|
|
'size':text_size,
|
|
'x':this.gutterLeft + (interval * i),
|
|
'y':ca.height - this.gutterBottom,
|
|
'text':labels[labels.length - i - 1],
|
|
'valign':'top',
|
|
'halign':'center',
|
|
'tag': 'scale'});
|
|
}
|
|
|
|
} else {
|
|
|
|
var labels = prop['chart.xlabels.specific'];
|
|
var interval = this.graphwidth / (labels.length - 1);
|
|
|
|
co.fillStyle = prop['chart.text.color'];
|
|
|
|
for (var i=0; i<labels.length; i+=1) {
|
|
RG.Text2(this, {'font':font,
|
|
'size':text_size,
|
|
'x':this.gutterLeft + (interval * i),
|
|
'y':ca.height - this.gutterBottom,
|
|
'text':labels[i],
|
|
'valign':'top',
|
|
'halign':'center',
|
|
'tag': 'scale'});
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Draw an X scale
|
|
*/
|
|
} else {
|
|
|
|
var gap = 7;
|
|
|
|
co.beginPath();
|
|
co.fillStyle = prop['chart.text.color'];
|
|
|
|
|
|
if (prop['chart.yaxispos'] == 'center') {
|
|
|
|
for (var i=0; i<this.scale2.labels.length; ++i) {
|
|
RG.Text2(this, {'font':font,
|
|
'size':text_size,
|
|
'x':this.gutterLeft + (this.graphwidth / 2) - ((this.graphwidth / 2) * ((i+1)/this.scale2.labels.length)),
|
|
'y':this.gutterTop + this.halfTextHeight + this.graphheight + gap,
|
|
'text':'-' + this.scale2.labels[i],
|
|
'valign':'center',
|
|
'halign':'center',
|
|
'tag': 'scale'});
|
|
}
|
|
|
|
for (var i=0; i<this.scale2.labels.length; ++i) {
|
|
RG.Text2(this, {'font':font,
|
|
'size':text_size,
|
|
'x':this.gutterLeft + ((this.graphwidth / 2) * ((i+1)/this.scale2.labels.length)) + (this.graphwidth / 2),
|
|
'y':this.gutterTop + this.halfTextHeight + this.graphheight + gap,
|
|
'text':this.scale2.labels[i],
|
|
'valign':'center',
|
|
'halign':'center',
|
|
'tag': 'scale'});
|
|
}
|
|
|
|
}else if (prop['chart.yaxispos'] == 'right') {
|
|
|
|
|
|
for (var i=0,len=this.scale2.labels.length; i<len; ++i) {
|
|
RG.Text2(this, {'font':font,
|
|
'size':text_size,
|
|
'x':this.gutterLeft + (i * (this.graphwidth / len)),
|
|
'y':this.gutterTop + this.halfTextHeight + this.graphheight + gap,
|
|
'text':'-' + this.scale2.labels[len - 1 - i],
|
|
'valign':'center',
|
|
'halign':'center',
|
|
'tag': 'scale'
|
|
});
|
|
}
|
|
|
|
} else {
|
|
for (var i=0,len=this.scale2.labels.length; i<len; ++i) {
|
|
RG.Text2(this, {'font':font,
|
|
'size':text_size,
|
|
'x':this.gutterLeft + (this.graphwidth * ((i+1)/len)),
|
|
'y':this.gutterTop + this.halfTextHeight + this.graphheight + gap,
|
|
'text':this.scale2.labels[i],
|
|
'valign':'center',
|
|
'halign':'center',
|
|
'tag': 'scale'
|
|
});
|
|
}
|
|
}
|
|
|
|
/**
|
|
* If xmin is not zero - draw that
|
|
*/
|
|
if (prop['chart.xmin'] > 0 || prop['chart.noyaxis'] == true) {
|
|
|
|
var x = prop['chart.yaxispos'] == 'center' ? this.gutterLeft + (this.graphwidth / 2): this.gutterLeft;
|
|
|
|
/**
|
|
* Y axis on the right
|
|
*/
|
|
if (prop['chart.yaxispos'] === 'right') {
|
|
var x = ca.width - this.gutterRight;
|
|
}
|
|
|
|
RG.Text2(this, {'font':font,
|
|
'size':text_size,
|
|
'x':x,
|
|
'y':this.gutterTop + this.halfTextHeight + this.graphheight + gap,
|
|
'text':RG.number_format(this, prop['chart.xmin'].toFixed(prop['chart.scale.decimals']), units_pre, units_post),
|
|
'valign':'center',
|
|
'halign':'center',
|
|
'tag': 'scale'
|
|
});
|
|
}
|
|
|
|
co.fill();
|
|
co.stroke();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* The Y axis labels
|
|
*/
|
|
if (typeof(prop['chart.labels']) == 'object') {
|
|
|
|
var xOffset = 5,
|
|
font = prop['chart.text.font'],
|
|
color = prop['chart.labels.color'] || prop['chart.text.color'],
|
|
bold = prop['chart.labels.bold']
|
|
|
|
|
|
// Draw the X axis labels
|
|
co.fillStyle = color;
|
|
|
|
// How high is each bar
|
|
var barHeight = (ca.height - this.gutterTop - this.gutterBottom ) / prop['chart.labels'].length;
|
|
|
|
// Reset the yTickGap
|
|
yTickGap = (ca.height - this.gutterTop - this.gutterBottom) / prop['chart.labels'].length
|
|
|
|
/**
|
|
* If the Y axis is on the right set the alignment and the X position, otherwise on the left
|
|
*/
|
|
if (prop['chart.yaxispos'] === 'right') {
|
|
var x = ca.width - this.gutterRight + xOffset;
|
|
var halign = 'left'
|
|
} else {
|
|
var x = this.gutterLeft - xOffset;
|
|
var halign = 'right'
|
|
}
|
|
|
|
// Draw the X tickmarks
|
|
var i=0;
|
|
for (y=this.gutterTop + (yTickGap / 2); y<=ca.height - this.gutterBottom; y+=yTickGap) {
|
|
|
|
RG.text2(this, {
|
|
'font': font,
|
|
'size': prop['chart.text.size'],
|
|
'bold': bold,
|
|
'x': x,
|
|
'y': y,
|
|
'text': String(prop['chart.labels'][i++]),
|
|
'halign': halign,
|
|
'valign': 'center',
|
|
'tag': 'labels'
|
|
});
|
|
}
|
|
}
|
|
};
|
|
|
|
|
|
|
|
|
|
/**
|
|
* This function draws the bars
|
|
*/
|
|
this.drawbars =
|
|
this.Drawbars = function ()
|
|
{
|
|
co.lineWidth = prop['chart.linewidth'];
|
|
co.strokeStyle = prop['chart.strokestyle'];
|
|
co.fillStyle = prop['chart.colors'][0];
|
|
var prevX = 0;
|
|
var prevY = 0;
|
|
|
|
/**
|
|
* Work out the max value
|
|
*/
|
|
if (prop['chart.xmax']) {
|
|
|
|
this.scale2 = RG.getScale2(this, {'max':prop['chart.xmax'],
|
|
'min':prop['chart.xmin'],
|
|
'scale.decimals':Number(prop['chart.scale.decimals']),
|
|
'scale.point':prop['chart.scale.point'],
|
|
'scale.thousand':prop['chart.scale.thousand'],
|
|
'scale.round':prop['chart.scale.round'],
|
|
'units.pre':prop['chart.units.pre'],
|
|
'units.post':prop['chart.units.post'],
|
|
'ylabels.count':prop['chart.xlabels.count'],
|
|
'strict':true
|
|
});
|
|
this.max = this.scale2.max;
|
|
|
|
} else {
|
|
|
|
var grouping = prop['chart.grouping'];
|
|
|
|
for (i=0; i<this.data.length; ++i) {
|
|
if (typeof(this.data[i]) == 'object') {
|
|
var value = grouping == 'grouped' ? Number(RG.array_max(this.data[i], true)) : Number(RG.array_sum(this.data[i])) ;
|
|
} else {
|
|
var value = Number(Math.abs(this.data[i]));
|
|
}
|
|
|
|
this.max = ma.max(Math.abs(this.max), Math.abs(value));
|
|
}
|
|
|
|
this.scale2 = RG.getScale2(this, {'max':this.max,
|
|
'min':prop['chart.xmin'],
|
|
'scale.decimals':Number(prop['chart.scale.decimals']),
|
|
'scale.point':prop['chart.scale.point'],
|
|
'scale.thousand':prop['chart.scale.thousand'],
|
|
'scale.round':prop['chart.scale.round'],
|
|
'units.pre':prop['chart.units.pre'],
|
|
'units.post':prop['chart.units.post'],
|
|
'ylabels.count':prop['chart.xlabels.count']
|
|
});
|
|
|
|
|
|
this.max = this.scale2.max;
|
|
this.min = this.scale2.min;
|
|
}
|
|
|
|
if (prop['chart.scale.decimals'] == null && Number(this.max) == 1) {
|
|
this.Set('chart.scale.decimals', 1);
|
|
}
|
|
|
|
/**
|
|
* This is here to facilitate sequential colors
|
|
*/
|
|
var colorIdx = 0;
|
|
|
|
|
|
|
|
|
|
/**
|
|
* The bars are drawn HERE
|
|
*/
|
|
var graphwidth = (ca.width - this.gutterLeft - this.gutterRight);
|
|
var halfwidth = graphwidth / 2;
|
|
|
|
for (i=0,len=this.data.length; i<len; ++i) {
|
|
|
|
// Work out the width and height
|
|
var width = ma.abs((this.data[i] / this.max) * graphwidth);
|
|
var height = this.graphheight / this.data.length;
|
|
|
|
var orig_height = height;
|
|
|
|
var x = this.gutterLeft;
|
|
var y = this.gutterTop + (i * height);
|
|
var vmargin = prop['chart.vmargin'];
|
|
|
|
// Account for the Y axis being on the right hand side
|
|
if (prop['chart.yaxispos'] === 'right') {
|
|
x = ca.width - this.gutterRight - ma.abs(width);
|
|
}
|
|
|
|
// Account for negative lengths - Some browsers (eg Chrome) don't like a negative value
|
|
if (width < 0) {
|
|
x -= width;
|
|
width = ma.abs(width);
|
|
}
|
|
|
|
/**
|
|
* Turn on the shadow if need be
|
|
*/
|
|
if (prop['chart.shadow']) {
|
|
co.shadowColor = prop['chart.shadow.color'];
|
|
co.shadowBlur = prop['chart.shadow.blur'];
|
|
co.shadowOffsetX = prop['chart.shadow.offsetx'];
|
|
co.shadowOffsetY = prop['chart.shadow.offsety'];
|
|
}
|
|
|
|
/**
|
|
* Draw the bar
|
|
*/
|
|
co.beginPath();
|
|
if (typeof(this.data[i]) == 'number') {
|
|
|
|
var barHeight = height - (2 * vmargin);
|
|
var barWidth = ((this.data[i] - prop['chart.xmin']) / (this.max - prop['chart.xmin'])) * this.graphwidth;
|
|
var barX = this.gutterLeft;
|
|
|
|
// Account for Y axis pos
|
|
if (prop['chart.yaxispos'] == 'center') {
|
|
barWidth /= 2;
|
|
barX += halfwidth;
|
|
|
|
if (this.data[i] < 0) {
|
|
barWidth = (Math.abs(this.data[i]) - prop['chart.xmin']) / (this.max - prop['chart.xmin']);
|
|
barWidth = barWidth * (this.graphwidth / 2);
|
|
barX = ((this.graphwidth / 2) + this.gutterLeft) - barWidth;
|
|
}
|
|
|
|
} else if (prop['chart.yaxispos'] == 'right') {
|
|
|
|
barWidth = Math.abs(barWidth);
|
|
barX = ca.width - this.gutterRight - barWidth;
|
|
}
|
|
|
|
// Set the fill color
|
|
co.strokeStyle = prop['chart.strokestyle'];
|
|
co.fillStyle = prop['chart.colors'][0];
|
|
|
|
// Sequential colors
|
|
if (prop['chart.colors.sequential']) {
|
|
co.fillStyle = prop['chart.colors'][colorIdx++];
|
|
}
|
|
|
|
co.strokeRect(barX, this.gutterTop + (i * height) + prop['chart.vmargin'], barWidth, barHeight);
|
|
co.fillRect(barX, this.gutterTop + (i * height) + prop['chart.vmargin'], barWidth, barHeight);
|
|
|
|
this.coords.push([barX,
|
|
y + vmargin,
|
|
barWidth,
|
|
height - (2 * vmargin),
|
|
co.fillStyle,
|
|
this.data[i],
|
|
true]);
|
|
|
|
/**
|
|
* Stacked bar chart
|
|
*/
|
|
} else if (typeof(this.data[i]) == 'object' && prop['chart.grouping'] == 'stacked') {
|
|
|
|
if (prop['chart.yaxispos'] == 'center') {
|
|
alert('[HBAR] You can\'t have a stacked chart with the Y axis in the center, change it to grouped');
|
|
} else if (prop['chart.yaxispos'] == 'right') {
|
|
var x = ca.width - this.gutterRight
|
|
}
|
|
|
|
var barHeight = height - (2 * vmargin);
|
|
|
|
if (typeof this.coords2[i] == 'undefined') {
|
|
this.coords2[i] = [];
|
|
}
|
|
|
|
for (j=0; j<this.data[i].length; ++j) {
|
|
|
|
|
|
// Set the fill/stroke colors
|
|
co.strokeStyle = prop['chart.strokestyle'];
|
|
co.fillStyle = prop['chart.colors'][j];
|
|
|
|
|
|
// Sequential colors
|
|
if (prop['chart.colors.sequential']) {
|
|
co.fillStyle = prop['chart.colors'][colorIdx++];
|
|
}
|
|
|
|
|
|
var width = (((this.data[i][j]) / (this.max))) * this.graphwidth;
|
|
var totalWidth = (RG.arraySum(this.data[i]) / this.max) * this.graphwidth;
|
|
|
|
if (prop['chart.yaxispos'] === 'right') {
|
|
x -= width;
|
|
}
|
|
|
|
|
|
|
|
co.strokeRect(x, this.gutterTop + prop['chart.vmargin'] + (this.graphheight / this.data.length) * i, width, height - (2 * vmargin) );
|
|
co.fillRect(x, this.gutterTop + prop['chart.vmargin'] + (this.graphheight / this.data.length) * i, width, height - (2 * vmargin) );
|
|
|
|
/**
|
|
* Store the coords for tooltips
|
|
*/
|
|
|
|
// The last property of this array is a boolean which tells you whether the value is the last or not
|
|
this.coords.push([x,
|
|
y + vmargin,
|
|
width,
|
|
height - (2 * vmargin),
|
|
co.fillStyle,
|
|
RG.array_sum(this.data[i]),
|
|
j == (this.data[i].length - 1)
|
|
]);
|
|
this.coords2[i].push([x,
|
|
y + vmargin,
|
|
width,
|
|
height - (2 * vmargin),
|
|
co.fillStyle,
|
|
RG.array_sum(this.data[i]),
|
|
j == (this.data[i].length - 1)
|
|
]);
|
|
|
|
if (prop['chart.yaxispos'] !== 'right') {
|
|
x += width;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* A grouped bar chart
|
|
*/
|
|
} else if (typeof(this.data[i]) == 'object' && prop['chart.grouping'] == 'grouped') {
|
|
|
|
var vmarginGrouped = prop['chart.vmargin.grouped'];
|
|
var individualBarHeight = ((height - (2 * vmargin) - ((this.data[i].length - 1) * vmarginGrouped)) / this.data[i].length)
|
|
|
|
if (typeof this.coords2[i] == 'undefined') {
|
|
this.coords2[i] = [];
|
|
}
|
|
|
|
for (j=0; j<this.data[i].length; ++j) {
|
|
|
|
|
|
/**
|
|
* Turn on the shadow if need be
|
|
*/
|
|
if (prop['chart.shadow']) {
|
|
RG.setShadow(this, prop['chart.shadow.color'], prop['chart.shadow.offsetx'], prop['chart.shadow.offsety'], prop['chart.shadow.blur']);
|
|
}
|
|
|
|
// Set the fill/stroke colors
|
|
co.strokeStyle = prop['chart.strokestyle'];
|
|
co.fillStyle = prop['chart.colors'][j];
|
|
|
|
// Sequential colors
|
|
if (prop['chart.colors.sequential']) {
|
|
co.fillStyle = prop['chart.colors'][colorIdx++];
|
|
}
|
|
|
|
|
|
|
|
var startY = this.gutterTop + (height * i) + (individualBarHeight * j) + vmargin + (vmarginGrouped * j);
|
|
var width = ((this.data[i][j] - prop['chart.xmin']) / (this.max - prop['chart.xmin'])) * (ca.width - this.gutterLeft - this.gutterRight );
|
|
var startX = this.gutterLeft;
|
|
|
|
|
|
|
|
// Account for the Y axis being in the middle
|
|
if (prop['chart.yaxispos'] == 'center') {
|
|
width /= 2;
|
|
startX += halfwidth;
|
|
|
|
// Account for the Y axis being on the right
|
|
} else if (prop['chart.yaxispos'] == 'right') {
|
|
width = ma.abs(width);
|
|
startX = ca.width - this.gutterRight - ma.abs(width);;
|
|
}
|
|
|
|
if (width < 0) {
|
|
startX += width;
|
|
width *= -1;
|
|
}
|
|
|
|
co.strokeRect(startX, startY, width, individualBarHeight);
|
|
co.fillRect(startX, startY, width, individualBarHeight);
|
|
|
|
this.coords.push([startX,
|
|
startY,
|
|
width,
|
|
individualBarHeight,
|
|
co.fillStyle,
|
|
this.data[i][j],
|
|
true]);
|
|
|
|
this.coords2[i].push([startX,
|
|
startY,
|
|
width,
|
|
individualBarHeight,
|
|
co.fillStyle,
|
|
this.data[i][j],
|
|
true]);
|
|
}
|
|
|
|
startY += vmargin;
|
|
}
|
|
|
|
co.closePath();
|
|
}
|
|
|
|
co.stroke();
|
|
co.fill();
|
|
|
|
|
|
|
|
/**
|
|
* Now the bars are stroke()ed, turn off the shadow
|
|
*/
|
|
RG.NoShadow(this);
|
|
|
|
this.RedrawBars();
|
|
};
|
|
|
|
|
|
|
|
|
|
/**
|
|
* This function goes over the bars after they been drawn, so that upwards shadows are underneath the bars
|
|
*/
|
|
this.redrawBars =
|
|
this.RedrawBars = function ()
|
|
{
|
|
if (prop['chart.noredraw']) {
|
|
return;
|
|
}
|
|
|
|
var coords = this.coords;
|
|
|
|
var font = prop['chart.text.font'];
|
|
var size = prop['chart.text.size'];
|
|
var color = prop['chart.text.color'];
|
|
|
|
RG.noShadow(this);
|
|
co.strokeStyle = prop['chart.strokestyle'];
|
|
|
|
for (var i=0; i<coords.length; ++i) {
|
|
|
|
if (prop['chart.shadow']) {
|
|
co.beginPath();
|
|
co.strokeStyle = prop['chart.strokestyle'];
|
|
co.fillStyle = coords[i][4];
|
|
co.lineWidth = prop['chart.linewidth'];
|
|
co.rect(coords[i][0], coords[i][1], coords[i][2], coords[i][3]);
|
|
co.stroke();
|
|
co.fill();
|
|
}
|
|
|
|
/**
|
|
* Draw labels "above" the bar
|
|
*/
|
|
var halign = 'left';
|
|
if (prop['chart.labels.above'] && coords[i][6]) {
|
|
|
|
co.fillStyle = prop['chart.text.color'];
|
|
co.strokeStyle = 'black';
|
|
RG.noShadow(this);
|
|
|
|
var border = (coords[i][0] + coords[i][2] + 7 + co.measureText(prop['chart.units.pre'] + this.coords[i][5] + prop['chart.units.post']).width) > ca.width ? true : false;
|
|
|
|
/**
|
|
* Default to the value - then check for specific labels
|
|
*/
|
|
var text = RG.numberFormat(this, (this.coords[i][5]).toFixed(prop['chart.labels.above.decimals']), prop['chart.units.pre'], prop['chart.units.post']);
|
|
if (typeof prop['chart.labels.above.specific'] == 'object' && prop['chart.labels.above.specific'] && prop['chart.labels.above.specific'][i]) {
|
|
text = prop['chart.labels.above.specific'][i];
|
|
}
|
|
|
|
var x = coords[i][0] + coords[i][2] + 5;
|
|
var y = coords[i][1] + (coords[i][3] / 2);
|
|
|
|
if (prop['chart.yaxispos'] === 'right') {
|
|
x = coords[i][0] - 5;
|
|
halign = 'right';
|
|
} else if (prop['chart.yaxispos'] === 'center' && this.data_arr[i] < 0) {
|
|
x = coords[i][0] - 5;
|
|
halign = 'right';
|
|
}
|
|
|
|
RG.Text2(this, {'font':font,
|
|
'size':size,
|
|
'x':x,
|
|
'y':y,
|
|
'text': text,
|
|
'valign':'center',
|
|
'halign': halign,
|
|
'tag': 'labels.above'
|
|
});
|
|
}
|
|
}
|
|
};
|
|
|
|
|
|
|
|
|
|
/**
|
|
* This function can be used to get the appropriate bar information (if any)
|
|
*
|
|
* @param e Event object
|
|
* @return Appriate bar information (if any)
|
|
*/
|
|
this.getShape =
|
|
this.getBar = function (e)
|
|
{
|
|
var mouseCoords = RG.getMouseXY(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 mouseX = mouseCoords[0]; // In relation to the canvas
|
|
var mouseY = mouseCoords[1]; // In relation to the canvas
|
|
var left = this.coords[i][0];
|
|
var top = this.coords[i][1];
|
|
var width = this.coords[i][2];
|
|
var height = this.coords[i][3];
|
|
var idx = i;
|
|
|
|
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: idx, 'index': idx,
|
|
'tooltip': tooltip
|
|
};
|
|
}
|
|
}
|
|
};
|
|
|
|
|
|
|
|
|
|
/**
|
|
* When you click on the chart, this method can return the X value at that point. It works for any point on the
|
|
* chart (that is inside the gutters) - not just points within the Bars.
|
|
*
|
|
* @param object e The event object
|
|
*/
|
|
this.getValue = function (arg)
|
|
{
|
|
if (arg.length == 2) {
|
|
var mouseX = arg[0];
|
|
var mouseY = arg[1];
|
|
} else {
|
|
var mouseCoords = RG.getMouseXY(arg);
|
|
var mouseX = mouseCoords[0];
|
|
var mouseY = mouseCoords[1];
|
|
}
|
|
|
|
if ( mouseY < this.gutterTop
|
|
|| mouseY > (ca.height - this.gutterBottom)
|
|
|| mouseX < this.gutterLeft
|
|
|| mouseX > (ca.width - this.gutterRight)
|
|
) {
|
|
return null;
|
|
}
|
|
|
|
if (prop['chart.yaxispos'] == 'center') {
|
|
var value = ((mouseX - this.gutterLeft) / (this.graphwidth / 2)) * (this.max - prop['chart.xmin']);
|
|
value = value - this.max
|
|
|
|
// Special case if xmin is defined
|
|
if (prop['chart.xmin'] > 0) {
|
|
value = ((mouseX - this.gutterLeft - (this.graphwidth / 2)) / (this.graphwidth / 2)) * (this.max - prop['chart.xmin']);
|
|
value += prop['chart.xmin'];
|
|
|
|
if (mouseX < (this.gutterLeft + (this.graphwidth / 2))) {
|
|
value -= (2 * prop['chart.xmin']);
|
|
}
|
|
}
|
|
} else {
|
|
var value = ((mouseX - this.gutterLeft) / this.graphwidth) * (this.max - prop['chart.xmin']);
|
|
value += prop['chart.xmin'];
|
|
}
|
|
|
|
return value;
|
|
};
|
|
|
|
|
|
|
|
|
|
/**
|
|
* 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:
|
|
*
|
|
* RG.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;
|
|
|
|
// Set the top position
|
|
tooltip.style.left = 0;
|
|
tooltip.style.top = canvasXY[1] + coordY + (coordH / 2) - height + 'px';
|
|
|
|
// By default any overflow is hidden
|
|
tooltip.style.overflow = '';
|
|
|
|
// The arrow
|
|
var img = new Image();
|
|
img.src = 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABEAAAAFCAYAAACjKgd3AAAARUlEQVQYV2NkQAN79+797+RkhC4M5+/bd47B2dmZEVkBCgcmgcsgbAaA9GA1BCSBbhAuA/AagmwQPgMIGgIzCD0M0AMMAEFVIAa6UQgcAAAAAElFTkSuQmCC';
|
|
img.style.position = 'absolute';
|
|
img.id = '__rgraph_tooltip_pointer__';
|
|
img.style.top = (tooltip.offsetHeight - 2) + 'px';
|
|
tooltip.appendChild(img);
|
|
|
|
// Reposition the tooltip if at the edges:
|
|
|
|
// LEFT edge
|
|
if ((canvasXY[0] + coordX + (coordW / 2) - (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] + (coordW / 2) + 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';
|
|
}
|
|
};
|
|
|
|
|
|
|
|
|
|
/**
|
|
* Returns the appropriate Y coord for the given value
|
|
*
|
|
* @param number value The value to get the coord for
|
|
*/
|
|
this.getXCoord = function (value)
|
|
{
|
|
|
|
if (prop['chart.yaxispos'] == 'center') {
|
|
|
|
// Range checking
|
|
if (value > this.max || value < (-1 * this.max)) {
|
|
return null;
|
|
}
|
|
|
|
var width = (ca.width - prop['chart.gutter.left'] - prop['chart.gutter.right']) / 2;
|
|
var coord = (((value - prop['chart.xmin']) / (this.max - prop['chart.xmin'])) * width) + width;
|
|
|
|
coord = prop['chart.gutter.left'] + coord;
|
|
} else {
|
|
|
|
// Range checking
|
|
if (value > this.max || value < 0) {
|
|
return null;
|
|
}
|
|
|
|
var width = ca.width - prop['chart.gutter.left'] - prop['chart.gutter.right'];
|
|
var coord = ((value - prop['chart.xmin']) / (this.max - prop['chart.xmin'])) * width;
|
|
|
|
coord = prop['chart.gutter.left'] + coord;
|
|
}
|
|
|
|
return coord;
|
|
};
|
|
|
|
|
|
|
|
|
|
/**
|
|
*
|
|
*/
|
|
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.'] = RG.array_clone(prop['chart.']);
|
|
this.original_colors['chart.colors'] = RG.array_clone(prop['chart.colors']);
|
|
this.original_colors['chart.background.grid.color'] = RG.array_clone(prop['chart.background.grid.color']);
|
|
this.original_colors['chart.background.color'] = RG.array_clone(prop['chart.background.color']);
|
|
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.text.color'] = RG.array_clone(prop['chart.text.color']);
|
|
this.original_colors['chart.labels.colors'] = RG.array_clone(prop['chart.labels.colors']);
|
|
this.original_colors['chart.strokestyle'] = RG.array_clone(prop['chart.strokestyle']);
|
|
this.original_colors['chart.axis.color'] = RG.array_clone(prop['chart.axis.color']);
|
|
this.original_colors['chart.highlight.fill'] = RG.array_clone(prop['chart.highlight.fill']);
|
|
this.original_colors['chart.highlight.stroke'] = RG.array_clone(prop['chart.highlight.stroke']);
|
|
|
|
}
|
|
|
|
var colors = prop['chart.colors'];
|
|
|
|
for (var i=0; i<colors.length; ++i) {
|
|
colors[i] = this.parseSingleColorForGradient(colors[i]);
|
|
}
|
|
|
|
prop['chart.background.grid.color'] = this.parseSingleColorForGradient(prop['chart.background.grid.color']);
|
|
prop['chart.background.color'] = this.parseSingleColorForGradient(prop['chart.background.color']);
|
|
prop['chart.background.barcolor1'] = this.parseSingleColorForGradient(prop['chart.background.barcolor1']);
|
|
prop['chart.background.barcolor2'] = this.parseSingleColorForGradient(prop['chart.background.barcolor2']);
|
|
prop['chart.text.color'] = this.parseSingleColorForGradient(prop['chart.text.color']);
|
|
prop['chart.labels.colors'] = this.parseSingleColorForGradient(prop['chart.labels.colors']);
|
|
prop['chart.strokestyle'] = this.parseSingleColorForGradient(prop['chart.strokestyle']);
|
|
prop['chart.axis.color'] = this.parseSingleColorForGradient(prop['chart.axis.color']);
|
|
prop['chart.highlight.fill'] = this.parseSingleColorForGradient(prop['chart.highlight.fill']);
|
|
prop['chart.highlight.stroke'] = this.parseSingleColorForGradient(prop['chart.highlight.stroke']);
|
|
};
|
|
|
|
|
|
|
|
|
|
/**
|
|
* 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
|
|
*/
|
|
this.parseSingleColorForGradient = function (color)
|
|
{
|
|
if (!color || typeof(color) != 'string') {
|
|
return color;
|
|
}
|
|
|
|
if (color.match(/^gradient\((.*)\)$/i)) {
|
|
|
|
var parts = RegExp.$1.split(':');
|
|
|
|
if (prop['chart.yaxispos'] === 'right') {
|
|
parts = RG.arrayReverse(parts);
|
|
}
|
|
|
|
// Create the gradient
|
|
var grad = co.createLinearGradient(prop['chart.gutter.left'],0,ca.width - prop['chart.gutter.right'],0);
|
|
|
|
var diff = 1 / (parts.length - 1);
|
|
|
|
grad.addColorStop(0, RG.trim(parts[0]));
|
|
|
|
for (var j=1; j<parts.length; ++j) {
|
|
grad.addColorStop(j * diff, RG.trim(parts[j]));
|
|
}
|
|
}
|
|
|
|
return grad ? grad : color;
|
|
};
|
|
|
|
|
|
|
|
|
|
/**
|
|
* This function handles highlighting an entire data-series for the interactive
|
|
* key
|
|
*
|
|
* @param int index The index of the data series to be highlighted
|
|
*/
|
|
this.interactiveKeyHighlight = function (index)
|
|
{
|
|
var obj = this;
|
|
|
|
this.coords2.forEach(function (value, idx, arr)
|
|
{
|
|
var shape = obj.coords2[idx][index]
|
|
var pre_linewidth = co.lineWidth;
|
|
co.lineWidth = 2;
|
|
co.fillStyle = prop['chart.key.interactive.highlight.chart.fill'];
|
|
co.strokeStyle = prop['chart.key.interactive.highlight.chart.stroke'];
|
|
co.fillRect(shape[0], shape[1], shape[2], shape[3]);
|
|
co.strokeRect(shape[0], shape[1], shape[2], shape[3]);
|
|
|
|
// Reset the lineWidth
|
|
co.lineWidth = pre_linewidth;
|
|
});
|
|
};
|
|
|
|
|
|
|
|
|
|
/**
|
|
* 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 ()
|
|
{
|
|
};
|
|
|
|
|
|
|
|
|
|
/**
|
|
* Grow
|
|
*
|
|
* The HBar chart Grow effect gradually increases the values of the bars
|
|
*
|
|
* @param object OPTIONAL Options for the effect. You can pass frames here
|
|
* @param function OPTIONAL A callback function
|
|
*/
|
|
this.grow = function ()
|
|
{
|
|
var obj = this;
|
|
var opt = arguments[0] || {};
|
|
var frames = opt.frames || 30;
|
|
var frame = 0;
|
|
var callback = arguments[1] || function () {};
|
|
|
|
|
|
// Save the data
|
|
obj.original_data = RG.array_clone(obj.data);
|
|
|
|
|
|
// Stop the scale from changing by setting chart.ymax (if it's not already set)
|
|
if (obj.Get('chart.xmax') == 0) {
|
|
|
|
var xmax = 0;
|
|
|
|
for (var i=0; i<obj.data.length; ++i) {
|
|
if (RG.is_array(obj.data[i]) && obj.Get('chart.grouping') == 'stacked') {
|
|
xmax = Math.max(xmax, RG.array_sum(obj.data[i]));
|
|
} else if (RG.is_array(obj.data[i]) && obj.Get('chart.grouping') == 'grouped') {
|
|
xmax = ma.max(xmax, RG.array_max(obj.data[i]));
|
|
} else {
|
|
xmax = ma.max(xmax, RG.array_max(obj.data[i]));
|
|
}
|
|
}
|
|
|
|
var scale2 = RG.getScale2(obj, {'max':xmax});
|
|
obj.Set('chart.xmax', scale2.max);
|
|
}
|
|
|
|
function iterator ()
|
|
{
|
|
// Alter the Bar chart data depending on the frame
|
|
for (var j=0,len=obj.original_data.length; j<len; ++j) {
|
|
|
|
// This stops the animation from being completely linear
|
|
var easingFactor = RG.Effects.getEasingMultiplier(frames, frame);
|
|
|
|
if (typeof obj.data[j] === 'object') {
|
|
for (var k=0,len2=obj.data[j].length; k<len2; ++k) {
|
|
obj.data[j][k] = obj.original_data[j][k] * easingFactor;
|
|
}
|
|
} else {
|
|
obj.data[j] = obj.original_data[j] * easingFactor;
|
|
}
|
|
}
|
|
|
|
|
|
|
|
RG.redrawCanvas(obj.canvas);
|
|
|
|
if (frame < frames) {
|
|
frame += 1;
|
|
RG.Effects.updateCanvas(iterator);
|
|
} else {
|
|
callback(obj);
|
|
}
|
|
}
|
|
|
|
iterator();
|
|
|
|
return this;
|
|
};
|
|
|
|
|
|
|
|
RG.att(ca);
|
|
|
|
|
|
|
|
|
|
/**
|
|
* Charts are now always 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);
|
|
}
|
|
}; |