[77] | 1 | /** |
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| 2 | * o------------------------------------------------------------------------------o |
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| 3 | * | This file is part of the RGraph package - you can learn more at: | |
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| 4 | * | | |
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| 5 | * | http://www.rgraph.net | |
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| 6 | * | | |
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| 7 | * | This package is licensed under the RGraph license. For all kinds of business | |
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| 8 | * | purposes there is a small one-time licensing fee to pay and for non | |
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| 9 | * | commercial purposes it is free to use. You can read the full license here: | |
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| 10 | * | | |
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| 11 | * | http://www.rgraph.net/LICENSE.txt | |
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| 12 | * o------------------------------------------------------------------------------o |
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| 13 | */ |
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| 14 | |
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| 15 | if (typeof(RGraph) == 'undefined') RGraph = {}; |
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| 16 | |
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| 17 | /** |
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| 18 | * The bi-polar/age frequency constructor. |
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| 19 | * |
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| 20 | * @param string id The id of the canvas |
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| 21 | * @param array left The left set of data points |
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| 22 | * @param array right The right set of data points |
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| 23 | */ |
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| 24 | RGraph.Bipolar = function (id, left, right) |
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| 25 | { |
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| 26 | // Get the canvas and context objects |
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| 27 | this.id = id; |
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| 28 | this.canvas = document.getElementById(id); |
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| 29 | this.context = this.canvas.getContext('2d'); |
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| 30 | this.canvas.__object__ = this; |
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| 31 | this.type = 'bipolar'; |
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| 32 | this.coords = []; |
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| 33 | this.max = 0; |
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| 34 | this.isRGraph = true; |
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| 35 | |
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| 36 | |
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| 37 | /** |
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| 38 | * Compatibility with older browsers |
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| 39 | */ |
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| 40 | RGraph.OldBrowserCompat(this.context); |
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| 41 | |
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| 42 | |
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| 43 | // The left and right data respectively |
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| 44 | this.left = left; |
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| 45 | this.right = right; |
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| 46 | this.data = [left, right]; |
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| 47 | |
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| 48 | this.properties = { |
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| 49 | 'chart.margin': 2, |
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| 50 | 'chart.xtickinterval': null, |
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| 51 | 'chart.labels': [], |
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| 52 | 'chart.text.size': 10, |
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| 53 | 'chart.text.color': 'black', |
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| 54 | 'chart.text.font': 'Verdana', |
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| 55 | 'chart.title.left': '', |
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| 56 | 'chart.title.right': '', |
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| 57 | 'chart.gutter.center': 60, |
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| 58 | 'chart.gutter.left': 25, |
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| 59 | 'chart.gutter.right': 25, |
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| 60 | 'chart.gutter.top': 25, |
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| 61 | 'chart.gutter.bottom': 25, |
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| 62 | 'chart.title': '', |
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| 63 | 'chart.title.background': null, |
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| 64 | 'chart.title.hpos': null, |
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| 65 | 'chart.title.vpos': null, |
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| 66 | 'chart.colors': ['#0f0'], |
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| 67 | 'chart.contextmenu': null, |
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| 68 | 'chart.tooltips': null, |
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| 69 | 'chart.tooltips.effect': 'fade', |
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| 70 | 'chart.tooltips.css.class': 'RGraph_tooltip', |
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| 71 | 'chart.tooltips.highlight': true, |
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| 72 | 'chart.highlight.stroke': 'black', |
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| 73 | 'chart.highlight.fill': 'rgba(255,255,255,0.5)', |
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| 74 | 'chart.units.pre': '', |
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| 75 | 'chart.units.post': '', |
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| 76 | 'chart.shadow': false, |
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| 77 | 'chart.shadow.color': '#666', |
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| 78 | 'chart.shadow.offsetx': 3, |
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| 79 | 'chart.shadow.offsety': 3, |
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| 80 | 'chart.shadow.blur': 3, |
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| 81 | 'chart.annotatable': false, |
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| 82 | 'chart.annotate.color': 'black', |
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| 83 | 'chart.xmax': null, |
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| 84 | 'chart.scale.decimals': null, |
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| 85 | 'chart.scale.point': '.', |
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| 86 | 'chart.scale.thousand': ',', |
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| 87 | 'chart.axis.color': 'black', |
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| 88 | 'chart.zoom.factor': 1.5, |
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| 89 | 'chart.zoom.fade.in': true, |
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| 90 | 'chart.zoom.fade.out': true, |
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| 91 | 'chart.zoom.hdir': 'right', |
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| 92 | 'chart.zoom.vdir': 'down', |
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| 93 | 'chart.zoom.frames': 10, |
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| 94 | 'chart.zoom.delay': 50, |
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| 95 | 'chart.zoom.shadow': true, |
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| 96 | 'chart.zoom.mode': 'canvas', |
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| 97 | 'chart.zoom.thumbnail.width': 75, |
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| 98 | 'chart.zoom.thumbnail.height': 75, |
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| 99 | 'chart.zoom.background': true, |
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| 100 | 'chart.zoom.action': 'zoom', |
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| 101 | 'chart.resizable': false, |
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| 102 | 'chart.resize.handle.adjust': [0,0], |
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| 103 | 'chart.resize.handle.background': null, |
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| 104 | 'chart.strokestyle': '#333' |
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| 105 | } |
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| 106 | |
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| 107 | // Pad the arrays so they're the same size |
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| 108 | while (this.left.length < this.right.length) this.left.push(0); |
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| 109 | while (this.left.length > this.right.length) this.right.push(0); |
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| 110 | } |
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| 111 | |
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| 112 | |
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| 113 | /** |
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| 114 | * The setter |
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| 115 | * |
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| 116 | * @param name string The name of the parameter to set |
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| 117 | * @param value mixed The value of the paraneter |
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| 118 | */ |
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| 119 | RGraph.Bipolar.prototype.Set = function (name, value) |
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| 120 | { |
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| 121 | this.properties[name.toLowerCase()] = value; |
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| 122 | } |
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| 123 | |
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| 124 | |
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| 125 | /** |
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| 126 | * The getter |
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| 127 | * |
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| 128 | * @param name string The name of the parameter to get |
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| 129 | */ |
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| 130 | RGraph.Bipolar.prototype.Get = function (name) |
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| 131 | { |
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| 132 | return this.properties[name.toLowerCase()]; |
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| 133 | } |
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| 134 | |
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| 135 | |
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| 136 | /** |
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| 137 | * Draws the graph |
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| 138 | */ |
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| 139 | RGraph.Bipolar.prototype.Draw = function () |
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| 140 | { |
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| 141 | /** |
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| 142 | * Fire the onbeforedraw event |
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| 143 | */ |
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| 144 | RGraph.FireCustomEvent(this, 'onbeforedraw'); |
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| 145 | |
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| 146 | |
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| 147 | /** |
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| 148 | * Clear all of this canvases event handlers (the ones installed by RGraph) |
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| 149 | */ |
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| 150 | RGraph.ClearEventListeners(this.id); |
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| 151 | |
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| 152 | /** |
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| 153 | * This is new in May 2011 and facilitates indiviual gutter settings, |
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| 154 | * eg chart.gutter.left |
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| 155 | */ |
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| 156 | this.gutterLeft = this.Get('chart.gutter.left'); |
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| 157 | this.gutterRight = this.Get('chart.gutter.right'); |
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| 158 | this.gutterTop = this.Get('chart.gutter.top'); |
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| 159 | this.gutterBottom = this.Get('chart.gutter.bottom'); |
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| 160 | |
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| 161 | |
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| 162 | |
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| 163 | // Reset the data to what was initially supplied |
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| 164 | this.left = this.data[0]; |
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| 165 | this.right = this.data[1]; |
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| 166 | |
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| 167 | |
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| 168 | /** |
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| 169 | * Reset the coords array |
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| 170 | */ |
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| 171 | this.coords = []; |
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| 172 | |
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| 173 | this.GetMax(); |
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| 174 | this.DrawAxes(); |
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| 175 | this.DrawTicks(); |
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| 176 | this.DrawLeftBars(); |
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| 177 | this.DrawRightBars(); |
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| 178 | |
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| 179 | if (this.Get('chart.axis.color') != 'black') { |
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| 180 | this.DrawAxes(); // Draw the axes again (if the axes color is not black) |
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| 181 | } |
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| 182 | |
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| 183 | this.DrawLabels(); |
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| 184 | this.DrawTitles(); |
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| 185 | |
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| 186 | /** |
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| 187 | * Setup the context menu if required |
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| 188 | */ |
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| 189 | if (this.Get('chart.contextmenu')) { |
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| 190 | RGraph.ShowContext(this); |
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| 191 | } |
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| 192 | |
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| 193 | |
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| 194 | /** |
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| 195 | * Install the on* event handlers |
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| 196 | */ |
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| 197 | if (this.Get('chart.tooltips')) { |
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| 198 | |
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| 199 | |
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| 200 | // Register the object so that it gets redrawn |
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| 201 | RGraph.Register(this); |
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| 202 | |
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| 203 | |
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| 204 | /** |
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| 205 | * Install the window onclick handler |
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| 206 | */ |
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| 207 | |
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| 208 | /** |
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| 209 | * Install the window event handler |
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| 210 | */ |
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| 211 | var eventHandler_window_click = function () |
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| 212 | { |
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| 213 | RGraph.Redraw(); |
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| 214 | } |
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| 215 | window.addEventListener('click', eventHandler_window_click, false); |
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| 216 | RGraph.AddEventListener('window_' + this.id, 'click', eventHandler_window_click); |
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| 217 | |
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| 218 | |
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| 219 | |
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| 220 | /** |
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| 221 | * If the cursor is over a hotspot, change the cursor to a hand |
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| 222 | */ |
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| 223 | var eventHandler_canvas_mousemove = function (e) |
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| 224 | { |
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| 225 | e = RGraph.FixEventObject(e); |
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| 226 | |
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| 227 | var canvas = document.getElementById(this.id); |
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| 228 | var obj = canvas.__object__; |
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| 229 | |
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| 230 | /** |
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| 231 | * Get the mouse X/Y coordinates |
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| 232 | */ |
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| 233 | var mouseCoords = RGraph.getMouseXY(e); |
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| 234 | var bar = obj.getBar(e); |
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| 235 | |
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| 236 | /** |
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| 237 | * Loop through the bars determining if the mouse is over a bar |
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| 238 | */ |
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| 239 | for (var i=0; i<obj.coords.length; i++) { |
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| 240 | |
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| 241 | var mouseX = mouseCoords[0]; // In relation to the canvas |
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| 242 | var mouseY = mouseCoords[1]; // In relation to the canvas |
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| 243 | var left = obj.coords[i][0]; |
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| 244 | var top = obj.coords[i][1]; |
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| 245 | var width = obj.coords[i][2]; |
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| 246 | var height = obj.coords[i][3]; |
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| 247 | |
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| 248 | if (mouseX >= left && mouseX <= (left + width ) && mouseY >= top && mouseY <= (top + height) ) { |
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| 249 | /** |
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| 250 | * Get the tooltip text |
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| 251 | */ |
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| 252 | if (typeof(obj.Get('chart.tooltips')) == 'function') { |
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| 253 | var text = obj.Get('chart.tooltips')(i); |
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| 254 | |
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| 255 | } else if (typeof(obj.Get('chart.tooltips')) == 'object' && typeof(obj.Get('chart.tooltips')[i]) == 'function') { |
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| 256 | var text = obj.Get('chart.tooltips')[i](i); |
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| 257 | |
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| 258 | } else if (typeof(obj.Get('chart.tooltips')) == 'object') { |
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| 259 | var text = obj.Get('chart.tooltips')[i]; |
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| 260 | |
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| 261 | } else { |
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| 262 | var text = ''; |
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| 263 | } |
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| 264 | |
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| 265 | if (text) { |
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| 266 | canvas.style.cursor = 'pointer'; |
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| 267 | } |
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| 268 | return; |
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| 269 | } |
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| 270 | } |
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| 271 | |
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| 272 | canvas.style.cursor = 'default'; |
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| 273 | } |
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| 274 | this.canvas.addEventListener('mousemove', eventHandler_canvas_mousemove, false); |
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| 275 | RGraph.AddEventListener(this.id, 'mouseover', eventHandler_canvas_mousemove); |
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| 276 | |
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| 277 | |
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| 278 | /** |
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| 279 | * Install the onclick event handler for the tooltips |
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| 280 | */ |
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| 281 | var eventHandler_canvas_click = function (e) |
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| 282 | { |
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| 283 | e = RGraph.FixEventObject(e); |
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| 284 | |
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| 285 | var canvas = document.getElementById(this.id) |
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| 286 | var obj = canvas.__object__; |
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| 287 | |
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| 288 | /** |
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| 289 | * Redraw the graph first, in effect resetting the graph to as it was when it was first drawn |
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| 290 | * This "deselects" any already selected bar |
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| 291 | */ |
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| 292 | RGraph.Clear(canvas); |
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| 293 | obj.Draw(); |
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| 294 | |
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| 295 | /** |
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| 296 | * Get the mouse X/Y coordinates |
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| 297 | */ |
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| 298 | var mouseCoords = RGraph.getMouseXY(e); |
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| 299 | var bar = obj.getBar(e); |
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| 300 | |
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| 301 | /** |
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| 302 | * This bit shows the tooltip (if required) |
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| 303 | */ |
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| 304 | if (bar) { |
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| 305 | |
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| 306 | var mouseX = mouseCoords[0]; // In relation to the canvas |
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| 307 | var mouseY = mouseCoords[1]; // In relation to the canvas |
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| 308 | var left = bar[0]; |
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| 309 | var top = bar[1]; |
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| 310 | var width = bar[2]; |
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| 311 | var height = bar[3]; |
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| 312 | var index = bar[4]; |
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| 313 | |
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| 314 | /** |
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| 315 | * Show a tooltip if it's defined |
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| 316 | */ |
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| 317 | if (obj.Get('chart.tooltips')) { |
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| 318 | |
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| 319 | /** |
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| 320 | * Get the tooltip text |
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| 321 | */ |
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| 322 | if (typeof(obj.Get('chart.tooltips')) == 'function') { |
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| 323 | var text = obj.Get('chart.tooltips')(index); |
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| 324 | |
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| 325 | } else if (typeof(obj.Get('chart.tooltips')) == 'object' && typeof(obj.Get('chart.tooltips')[index]) == 'function') { |
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| 326 | var text = obj.Get('chart.tooltips')[index](index); |
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| 327 | |
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| 328 | } else if (typeof(obj.Get('chart.tooltips')) == 'object') { |
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| 329 | var text = obj.Get('chart.tooltips')[index]; |
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| 330 | |
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| 331 | } else { |
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| 332 | var text = ''; |
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| 333 | } |
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| 334 | |
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| 335 | // Only now show a tooltip if one has been set |
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| 336 | if (text) { |
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| 337 | obj.context.beginPath(); |
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| 338 | obj.context.strokeStyle = obj.Get('chart.highlight.stroke'); |
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| 339 | obj.context.fillStyle = obj.Get('chart.highlight.fill'); |
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| 340 | obj.context.strokeRect(left, top, width, height); |
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| 341 | obj.context.fillRect(left, top, width, height); |
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| 342 | obj.context.stroke(); |
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| 343 | obj.context.fill(); |
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| 344 | |
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| 345 | RGraph.Tooltip(canvas, text, e.pageX, e.pageY, index); |
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| 346 | } |
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| 347 | } |
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| 348 | } |
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| 349 | |
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| 350 | /** |
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| 351 | * Stop the event bubbling |
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| 352 | */ |
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| 353 | e.stopPropagation(); |
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| 354 | |
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| 355 | return false; |
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| 356 | } |
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| 357 | this.canvas.addEventListener('click', eventHandler_canvas_click, false); |
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| 358 | RGraph.AddEventListener(this.id, 'click', eventHandler_canvas_click); |
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| 359 | |
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| 360 | // This resets the bipolar graph |
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| 361 | if (RGraph.Registry.Get('chart.tooltip')) { |
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| 362 | RGraph.Registry.Get('chart.tooltip').style.display = 'none'; |
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| 363 | RGraph.Registry.Set('chart.tooltip', null) |
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| 364 | } |
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| 365 | } |
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| 366 | |
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| 367 | /** |
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| 368 | * If the canvas is annotatable, do install the event handlers |
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| 369 | */ |
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| 370 | if (this.Get('chart.annotatable')) { |
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| 371 | RGraph.Annotate(this); |
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| 372 | } |
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| 373 | |
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| 374 | /** |
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| 375 | * This bit shows the mini zoom window if requested |
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| 376 | */ |
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| 377 | if (this.Get('chart.zoom.mode') == 'thumbnail' || this.Get('chart.zoom.mode') == 'area') { |
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| 378 | RGraph.ShowZoomWindow(this); |
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| 379 | } |
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| 380 | |
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| 381 | |
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| 382 | /** |
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| 383 | * This function enables resizing |
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| 384 | */ |
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| 385 | if (this.Get('chart.resizable')) { |
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| 386 | RGraph.AllowResizing(this); |
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| 387 | } |
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| 388 | |
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| 389 | /** |
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| 390 | * Add the common .getShape() method |
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| 391 | */ |
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| 392 | this.getShape = this.getBar; |
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| 393 | |
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| 394 | /** |
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| 395 | * Fire the RGraph ondraw event |
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| 396 | */ |
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| 397 | RGraph.FireCustomEvent(this, 'ondraw'); |
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| 398 | } |
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| 399 | |
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| 400 | |
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| 401 | /** |
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| 402 | * Draws the axes |
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| 403 | */ |
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| 404 | RGraph.Bipolar.prototype.DrawAxes = function () |
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| 405 | { |
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| 406 | // Draw the left set of axes |
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| 407 | this.context.beginPath(); |
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| 408 | this.context.strokeStyle = this.Get('chart.axis.color'); |
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| 409 | |
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| 410 | this.axisWidth = (RGraph.GetWidth(this) - this.Get('chart.gutter.center') - this.gutterLeft - this.gutterRight) / 2; |
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| 411 | this.axisHeight = RGraph.GetHeight(this) - this.gutterTop - this.gutterBottom; |
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| 412 | |
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| 413 | this.context.moveTo(this.gutterLeft, RGraph.GetHeight(this) - this.gutterBottom); |
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| 414 | this.context.lineTo(this.gutterLeft + this.axisWidth, RGraph.GetHeight(this) - this.gutterBottom); |
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| 415 | this.context.lineTo(this.gutterLeft + this.axisWidth, this.gutterTop); |
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| 416 | |
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| 417 | this.context.stroke(); |
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| 418 | |
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| 419 | // Draw the right set of axes |
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| 420 | this.context.beginPath(); |
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| 421 | |
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| 422 | var x = this.gutterLeft + this.axisWidth + this.Get('chart.gutter.center'); |
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| 423 | |
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| 424 | this.context.moveTo(x, this.gutterTop); |
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| 425 | this.context.lineTo(x, RGraph.GetHeight(this) - this.gutterBottom); |
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| 426 | this.context.lineTo(RGraph.GetWidth(this) - this.gutterRight, RGraph.GetHeight(this) - this.gutterBottom); |
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| 427 | |
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| 428 | this.context.stroke(); |
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| 429 | } |
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| 430 | |
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| 431 | |
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| 432 | /** |
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| 433 | * Draws the tick marks on the axes |
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| 434 | */ |
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| 435 | RGraph.Bipolar.prototype.DrawTicks = function () |
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| 436 | { |
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| 437 | var numDataPoints = this.left.length; |
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| 438 | var barHeight = ( (RGraph.GetHeight(this) - this.gutterTop - this.gutterBottom)- (this.left.length * (this.Get('chart.margin') * 2) )) / numDataPoints; |
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| 439 | |
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| 440 | // Draw the left Y tick marks |
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| 441 | for (var i = RGraph.GetHeight(this) - this.gutterBottom; i >= this.gutterTop; i -= (barHeight + ( this.Get('chart.margin') * 2)) ) { |
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| 442 | if (i < (RGraph.GetHeight(this) - this.gutterBottom) ) { |
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| 443 | this.context.beginPath(); |
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| 444 | this.context.moveTo(this.gutterLeft + this.axisWidth, i); |
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| 445 | this.context.lineTo(this.gutterLeft + this.axisWidth + 3, i); |
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| 446 | this.context.stroke(); |
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| 447 | } |
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| 448 | } |
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| 449 | |
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| 450 | //Draw the right axis Y tick marks |
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| 451 | for (var i = RGraph.GetHeight(this) - this.gutterBottom; i >= this.gutterTop; i -= (barHeight + ( this.Get('chart.margin') * 2)) ) { |
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| 452 | if (i < (RGraph.GetHeight(this) - this.gutterBottom) ) { |
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| 453 | this.context.beginPath(); |
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| 454 | this.context.moveTo(this.gutterLeft + this.axisWidth + this.Get('chart.gutter.center'), i); |
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| 455 | this.context.lineTo(this.gutterLeft + this.axisWidth + this.Get('chart.gutter.center') - 3, i); |
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| 456 | this.context.stroke(); |
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| 457 | } |
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| 458 | } |
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| 459 | |
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| 460 | var xInterval = this.axisWidth / 10; |
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| 461 | |
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| 462 | // Is chart.xtickinterval specified ? If so, use that. |
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| 463 | if (typeof(this.Get('chart.xtickinterval')) == 'number') { |
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| 464 | xInterval = this.Get('chart.xtickinterval'); |
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| 465 | } |
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| 466 | |
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| 467 | |
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| 468 | // Draw the left sides X tick marks |
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| 469 | for (i=this.gutterLeft; i<(this.gutterLeft + this.axisWidth); i+=xInterval) { |
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| 470 | this.context.beginPath(); |
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| 471 | this.context.moveTo(i, RGraph.GetHeight(this) - this.gutterBottom); |
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| 472 | this.context.lineTo(i, (RGraph.GetHeight(this) - this.gutterBottom) + 4); |
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| 473 | this.context.closePath(); |
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| 474 | |
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| 475 | this.context.stroke(); |
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| 476 | } |
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| 477 | |
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| 478 | // Draw the right sides X tick marks |
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| 479 | var stoppingPoint = RGraph.GetWidth(this) - this.gutterRight; |
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| 480 | |
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| 481 | for (i=(this.gutterLeft + this.axisWidth + this.Get('chart.gutter.center') + xInterval); i<=stoppingPoint; i+=xInterval) { |
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| 482 | this.context.beginPath(); |
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| 483 | this.context.moveTo(i, RGraph.GetHeight(this) - this.gutterBottom); |
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| 484 | this.context.lineTo(i, (RGraph.GetHeight(this) - this.gutterBottom) + 4); |
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| 485 | this.context.closePath(); |
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| 486 | |
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| 487 | this.context.stroke(); |
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| 488 | } |
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| 489 | |
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| 490 | // Store this for later |
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| 491 | this.barHeight = barHeight; |
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| 492 | } |
---|
| 493 | |
---|
| 494 | |
---|
| 495 | /** |
---|
| 496 | * Figures out the maximum value, or if defined, uses xmax |
---|
| 497 | */ |
---|
| 498 | RGraph.Bipolar.prototype.GetMax = function() |
---|
| 499 | { |
---|
| 500 | var max = 0; |
---|
| 501 | var dec = this.Get('chart.scale.decimals'); |
---|
| 502 | |
---|
| 503 | // chart.xmax defined |
---|
| 504 | if (this.Get('chart.xmax')) { |
---|
| 505 | |
---|
| 506 | max = this.Get('chart.xmax'); |
---|
| 507 | |
---|
| 508 | this.scale = []; |
---|
| 509 | this.scale[0] = Number((max / 5) * 1).toFixed(dec); |
---|
| 510 | this.scale[1] = Number((max / 5) * 2).toFixed(dec); |
---|
| 511 | this.scale[2] = Number((max / 5) * 3).toFixed(dec); |
---|
| 512 | this.scale[3] = Number((max / 5) * 4).toFixed(dec); |
---|
| 513 | this.scale[4] = Number(max).toFixed(dec); |
---|
| 514 | |
---|
| 515 | this.max = max; |
---|
| 516 | |
---|
| 517 | |
---|
| 518 | // Generate the scale ourselves |
---|
| 519 | } else { |
---|
| 520 | this.leftmax = RGraph.array_max(this.left); |
---|
| 521 | this.rightmax = RGraph.array_max(this.right); |
---|
| 522 | max = Math.max(this.leftmax, this.rightmax); |
---|
| 523 | |
---|
| 524 | this.scale = RGraph.getScale(max, this); |
---|
| 525 | this.scale[0] = Number(this.scale[0]).toFixed(dec); |
---|
| 526 | this.scale[1] = Number(this.scale[1]).toFixed(dec); |
---|
| 527 | this.scale[2] = Number(this.scale[2]).toFixed(dec); |
---|
| 528 | this.scale[3] = Number(this.scale[3]).toFixed(dec); |
---|
| 529 | this.scale[4] = Number(this.scale[4]).toFixed(dec); |
---|
| 530 | |
---|
| 531 | this.max = this.scale[4]; |
---|
| 532 | } |
---|
| 533 | |
---|
| 534 | // Don't need to return it as it is stored in this.max |
---|
| 535 | } |
---|
| 536 | |
---|
| 537 | |
---|
| 538 | /** |
---|
| 539 | * Function to draw the left hand bars |
---|
| 540 | */ |
---|
| 541 | RGraph.Bipolar.prototype.DrawLeftBars = function () |
---|
| 542 | { |
---|
| 543 | // Set the stroke colour |
---|
| 544 | this.context.strokeStyle = this.Get('chart.strokestyle'); |
---|
| 545 | |
---|
| 546 | for (i=0; i<this.left.length; ++i) { |
---|
| 547 | |
---|
| 548 | /** |
---|
| 549 | * Turn on a shadow if requested |
---|
| 550 | */ |
---|
| 551 | if (this.Get('chart.shadow')) { |
---|
| 552 | this.context.shadowColor = this.Get('chart.shadow.color'); |
---|
| 553 | this.context.shadowBlur = this.Get('chart.shadow.blur'); |
---|
| 554 | this.context.shadowOffsetX = this.Get('chart.shadow.offsetx'); |
---|
| 555 | this.context.shadowOffsetY = this.Get('chart.shadow.offsety'); |
---|
| 556 | } |
---|
| 557 | |
---|
| 558 | this.context.beginPath(); |
---|
| 559 | |
---|
| 560 | // Set the colour |
---|
| 561 | if (this.Get('chart.colors')[i]) { |
---|
| 562 | this.context.fillStyle = this.Get('chart.colors')[i]; |
---|
| 563 | } |
---|
| 564 | |
---|
| 565 | /** |
---|
| 566 | * Work out the coordinates |
---|
| 567 | */ |
---|
| 568 | var width = ( (this.left[i] / this.max) * this.axisWidth); |
---|
| 569 | var coords = [ |
---|
| 570 | this.gutterLeft + this.axisWidth - width, |
---|
| 571 | this.gutterTop + (i * ( this.axisHeight / this.left.length)) + this.Get('chart.margin'), |
---|
| 572 | width, |
---|
| 573 | this.barHeight |
---|
| 574 | ]; |
---|
| 575 | |
---|
| 576 | // Draw the IE shadow if necessary |
---|
| 577 | if (RGraph.isIE8() && this.Get('chart.shadow')) { |
---|
| 578 | this.DrawIEShadow(coords); |
---|
| 579 | } |
---|
| 580 | |
---|
| 581 | |
---|
| 582 | this.context.strokeRect(coords[0], coords[1], coords[2], coords[3]); |
---|
| 583 | this.context.fillRect(coords[0], coords[1], coords[2], coords[3]); |
---|
| 584 | |
---|
| 585 | this.context.stroke(); |
---|
| 586 | this.context.fill(); |
---|
| 587 | |
---|
| 588 | /** |
---|
| 589 | * Add the coordinates to the coords array |
---|
| 590 | */ |
---|
| 591 | this.coords.push([ |
---|
| 592 | coords[0], |
---|
| 593 | coords[1], |
---|
| 594 | coords[2], |
---|
| 595 | coords[3] |
---|
| 596 | ]); |
---|
| 597 | } |
---|
| 598 | |
---|
| 599 | /** |
---|
| 600 | * Turn off any shadow |
---|
| 601 | */ |
---|
| 602 | RGraph.NoShadow(this); |
---|
| 603 | } |
---|
| 604 | |
---|
| 605 | |
---|
| 606 | /** |
---|
| 607 | * Function to draw the right hand bars |
---|
| 608 | */ |
---|
| 609 | RGraph.Bipolar.prototype.DrawRightBars = function () |
---|
| 610 | { |
---|
| 611 | // Set the stroke colour |
---|
| 612 | this.context.strokeStyle = this.Get('chart.strokestyle'); |
---|
| 613 | |
---|
| 614 | /** |
---|
| 615 | * Turn on a shadow if requested |
---|
| 616 | */ |
---|
| 617 | if (this.Get('chart.shadow')) { |
---|
| 618 | this.context.shadowColor = this.Get('chart.shadow.color'); |
---|
| 619 | this.context.shadowBlur = this.Get('chart.shadow.blur'); |
---|
| 620 | this.context.shadowOffsetX = this.Get('chart.shadow.offsetx'); |
---|
| 621 | this.context.shadowOffsetY = this.Get('chart.shadow.offsety'); |
---|
| 622 | } |
---|
| 623 | |
---|
| 624 | for (var i=0; i<this.right.length; ++i) { |
---|
| 625 | this.context.beginPath(); |
---|
| 626 | |
---|
| 627 | // Set the colour |
---|
| 628 | if (this.Get('chart.colors')[i]) { |
---|
| 629 | this.context.fillStyle = this.Get('chart.colors')[i]; |
---|
| 630 | } |
---|
| 631 | |
---|
| 632 | |
---|
| 633 | var width = ( (this.right[i] / this.max) * this.axisWidth); |
---|
| 634 | var coords = [ |
---|
| 635 | this.gutterLeft + this.axisWidth + this.Get('chart.gutter.center'), |
---|
| 636 | this.Get('chart.margin') + (i * (this.axisHeight / this.right.length)) + this.gutterTop, |
---|
| 637 | width, |
---|
| 638 | this.barHeight |
---|
| 639 | ]; |
---|
| 640 | |
---|
| 641 | // Draw the IE shadow if necessary |
---|
| 642 | if (RGraph.isIE8() && this.Get('chart.shadow')) { |
---|
| 643 | this.DrawIEShadow(coords); |
---|
| 644 | } |
---|
| 645 | this.context.strokeRect(coords[0], coords[1], coords[2], coords[3]); |
---|
| 646 | this.context.fillRect(coords[0], coords[1], coords[2], coords[3]); |
---|
| 647 | |
---|
| 648 | this.context.closePath(); |
---|
| 649 | |
---|
| 650 | /** |
---|
| 651 | * Add the coordinates to the coords array |
---|
| 652 | */ |
---|
| 653 | this.coords.push([ |
---|
| 654 | coords[0], |
---|
| 655 | coords[1], |
---|
| 656 | coords[2], |
---|
| 657 | coords[3] |
---|
| 658 | ]); |
---|
| 659 | } |
---|
| 660 | |
---|
| 661 | this.context.stroke(); |
---|
| 662 | |
---|
| 663 | /** |
---|
| 664 | * Turn off any shadow |
---|
| 665 | */ |
---|
| 666 | RGraph.NoShadow(this); |
---|
| 667 | } |
---|
| 668 | |
---|
| 669 | |
---|
| 670 | /** |
---|
| 671 | * Draws the titles |
---|
| 672 | */ |
---|
| 673 | RGraph.Bipolar.prototype.DrawLabels = function () |
---|
| 674 | { |
---|
| 675 | this.context.fillStyle = this.Get('chart.text.color'); |
---|
| 676 | |
---|
| 677 | var labelPoints = new Array(); |
---|
| 678 | var font = this.Get('chart.text.font'); |
---|
| 679 | var size = this.Get('chart.text.size'); |
---|
| 680 | |
---|
| 681 | var max = Math.max(this.left.length, this.right.length); |
---|
| 682 | |
---|
| 683 | for (i=0; i<max; ++i) { |
---|
| 684 | var barAreaHeight = RGraph.GetHeight(this) - this.gutterTop - this.gutterBottom; |
---|
| 685 | var barHeight = barAreaHeight / this.left.length; |
---|
| 686 | var yPos = (i * barAreaHeight) + this.gutterTop; |
---|
| 687 | |
---|
| 688 | labelPoints.push(this.gutterTop + (i * barHeight) + (barHeight / 2) + 5); |
---|
| 689 | } |
---|
| 690 | |
---|
| 691 | for (i=0; i<labelPoints.length; ++i) { |
---|
| 692 | RGraph.Text(this.context, |
---|
| 693 | this.Get('chart.text.font'), |
---|
| 694 | this.Get('chart.text.size'), |
---|
| 695 | this.gutterLeft + this.axisWidth + (this.Get('chart.gutter.center') / 2), |
---|
| 696 | labelPoints[i], |
---|
| 697 | String(this.Get('chart.labels')[i] ? this.Get('chart.labels')[i] : ''), |
---|
| 698 | null, |
---|
| 699 | 'center'); |
---|
| 700 | } |
---|
| 701 | |
---|
| 702 | // Now draw the X labels for the left hand side |
---|
| 703 | RGraph.Text(this.context,font,size,this.gutterLeft,RGraph.GetHeight(this) - this.gutterBottom + 14,RGraph.number_format(this, this.scale[4], this.Get('chart.units.pre'), this.Get('chart.units.post')),null,'center'); |
---|
| 704 | RGraph.Text(this.context, font, size, this.gutterLeft + ((RGraph.GetWidth(this) - this.Get('chart.gutter.center') - this.gutterLeft - this.gutterRight) / 2) * (1/5), RGraph.GetHeight(this) - this.gutterBottom + 14, RGraph.number_format(this, this.scale[3], this.Get('chart.units.pre'), this.Get('chart.units.post')), null, 'center'); |
---|
| 705 | RGraph.Text(this.context, font, size, this.gutterLeft + ((RGraph.GetWidth(this) - this.Get('chart.gutter.center') - this.gutterLeft - this.gutterRight) / 2) * (2/5), RGraph.GetHeight(this) - this.gutterBottom + 14, RGraph.number_format(this, this.scale[2], this.Get('chart.units.pre'), this.Get('chart.units.post')), null, 'center'); |
---|
| 706 | RGraph.Text(this.context, font, size, this.gutterLeft + ((RGraph.GetWidth(this) - this.Get('chart.gutter.center') - this.gutterLeft - this.gutterRight) / 2) * (3/5), RGraph.GetHeight(this) - this.gutterBottom + 14, RGraph.number_format(this, this.scale[1], this.Get('chart.units.pre'), this.Get('chart.units.post')), null, 'center'); |
---|
| 707 | RGraph.Text(this.context, font, size, this.gutterLeft + ((RGraph.GetWidth(this) - this.Get('chart.gutter.center') - this.gutterLeft - this.gutterRight) / 2) * (4/5), RGraph.GetHeight(this) - this.gutterBottom + 14, RGraph.number_format(this, this.scale[0], this.Get('chart.units.pre'), this.Get('chart.units.post')), null, 'center'); |
---|
| 708 | |
---|
| 709 | // Now draw the X labels for the right hand side |
---|
| 710 | RGraph.Text(this.context, font, size, RGraph.GetWidth(this) - this.gutterRight, RGraph.GetHeight(this) - this.gutterBottom + 14, RGraph.number_format(this, this.scale[4], this.Get('chart.units.pre'), this.Get('chart.units.post')), null, 'center'); |
---|
| 711 | RGraph.Text(this.context, font, size, RGraph.GetWidth(this) - this.gutterRight - (this.axisWidth * 0.2), RGraph.GetHeight(this) - this.gutterBottom + 14,RGraph.number_format(this, this.scale[3], this.Get('chart.units.pre'), this.Get('chart.units.post')), null, 'center'); |
---|
| 712 | RGraph.Text(this.context, font, size, RGraph.GetWidth(this) - this.gutterRight - (this.axisWidth * 0.4), RGraph.GetHeight(this) - this.gutterBottom + 14,RGraph.number_format(this, this.scale[2], this.Get('chart.units.pre'), this.Get('chart.units.post')), null, 'center'); |
---|
| 713 | RGraph.Text(this.context, font, size, RGraph.GetWidth(this) - this.gutterRight - (this.axisWidth * 0.6), RGraph.GetHeight(this) - this.gutterBottom + 14,RGraph.number_format(this, this.scale[1], this.Get('chart.units.pre'), this.Get('chart.units.post')), null, 'center'); |
---|
| 714 | RGraph.Text(this.context, font, size, RGraph.GetWidth(this) - this.gutterRight - (this.axisWidth * 0.8), RGraph.GetHeight(this) - this.gutterBottom + 14,RGraph.number_format(this, this.scale[0], this.Get('chart.units.pre'), this.Get('chart.units.post')), null, 'center'); |
---|
| 715 | } |
---|
| 716 | |
---|
| 717 | /** |
---|
| 718 | * Draws the titles |
---|
| 719 | */ |
---|
| 720 | RGraph.Bipolar.prototype.DrawTitles = function () |
---|
| 721 | { |
---|
| 722 | RGraph.Text(this.context, this.Get('chart.text.font'), this.Get('chart.text.size'), this.gutterLeft + 5, (this.gutterTop / 2) + 5, String(this.Get('chart.title.left')), 'center'); |
---|
| 723 | RGraph.Text(this.context,this.Get('chart.text.font'), this.Get('chart.text.size'), RGraph.GetWidth(this) - this.gutterRight - 5, (this.gutterTop / 2) + 5, String(this.Get('chart.title.right')), 'center', 'right'); |
---|
| 724 | |
---|
| 725 | // Draw the main title for the whole chart |
---|
| 726 | RGraph.DrawTitle(this.canvas, this.Get('chart.title'), this.gutterTop); |
---|
| 727 | } |
---|
| 728 | |
---|
| 729 | |
---|
| 730 | /** |
---|
| 731 | * This function is used by MSIE only to manually draw the shadow |
---|
| 732 | * |
---|
| 733 | * @param array coords The coords for the bar |
---|
| 734 | */ |
---|
| 735 | RGraph.Bipolar.prototype.DrawIEShadow = function (coords) |
---|
| 736 | { |
---|
| 737 | var prevFillStyle = this.context.fillStyle; |
---|
| 738 | var offsetx = this.Get('chart.shadow.offsetx'); |
---|
| 739 | var offsety = this.Get('chart.shadow.offsety'); |
---|
| 740 | |
---|
| 741 | this.context.lineWidth = this.Get('chart.linewidth'); |
---|
| 742 | this.context.fillStyle = this.Get('chart.shadow.color'); |
---|
| 743 | this.context.beginPath(); |
---|
| 744 | |
---|
| 745 | // Draw shadow here |
---|
| 746 | this.context.fillRect(coords[0] + offsetx, coords[1] + offsety, coords[2],coords[3]); |
---|
| 747 | |
---|
| 748 | this.context.fill(); |
---|
| 749 | |
---|
| 750 | // Change the fillstyle back to what it was |
---|
| 751 | this.context.fillStyle = prevFillStyle; |
---|
| 752 | } |
---|
| 753 | |
---|
| 754 | |
---|
| 755 | /** |
---|
| 756 | * Returns the appropriate focussed bar coordinates |
---|
| 757 | * |
---|
| 758 | * @param e object The event object |
---|
| 759 | */ |
---|
| 760 | RGraph.Bipolar.prototype.getBar = function (e) |
---|
| 761 | { |
---|
| 762 | var obj = e.target.__object__; |
---|
| 763 | var canvas = obj.canvas; |
---|
| 764 | var context = obj.context; |
---|
| 765 | var mouseCoords = RGraph.getMouseXY(e); |
---|
| 766 | |
---|
| 767 | /** |
---|
| 768 | * Loop through the bars determining if the mouse is over a bar |
---|
| 769 | */ |
---|
| 770 | for (var i=0; i<obj.coords.length; i++) { |
---|
| 771 | |
---|
| 772 | var mouseX = mouseCoords[0]; |
---|
| 773 | var mouseY = mouseCoords[1]; |
---|
| 774 | var left = obj.coords[i][0]; |
---|
| 775 | var top = obj.coords[i][1]; |
---|
| 776 | var width = obj.coords[i][2]; |
---|
| 777 | var height = obj.coords[i][3]; |
---|
| 778 | |
---|
| 779 | if (mouseX >= left && mouseX <= (left + width) && mouseY >= top && mouseY <= (top + height) ) { |
---|
| 780 | return [left,top,width,height,i]; |
---|
| 781 | } |
---|
| 782 | } |
---|
| 783 | |
---|
| 784 | return null; |
---|
| 785 | } |
---|