[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 progress bar constructor |
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| 19 | * |
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| 20 | * @param int id The ID of the canvas tag |
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| 21 | * @param int value The indicated value of the meter. |
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| 22 | * @param int max The end value (the upper most) of the meter |
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| 23 | */ |
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| 24 | RGraph.VProgress = function (id, value, max) |
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| 25 | { |
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| 26 | this.id = id; |
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| 27 | this.max = max; |
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| 28 | this.value = value; |
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| 29 | this.canvas = document.getElementById(id); |
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| 30 | this.context = this.canvas.getContext('2d'); |
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| 31 | this.canvas.__object__ = this; |
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| 32 | this.type = 'vprogress'; |
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| 33 | this.coords = []; |
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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 | this.properties = { |
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| 43 | 'chart.colors': ['#0c0'], |
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| 44 | 'chart.tickmarks': true, |
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| 45 | 'chart.tickmarks.zerostart':false, |
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| 46 | 'chart.tickmarks.color': 'black', |
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| 47 | 'chart.tickmarks.inner': false, |
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| 48 | 'chart.gutter.left': 25, |
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| 49 | 'chart.gutter.right': 25, |
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| 50 | 'chart.gutter.top': 25, |
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| 51 | 'chart.gutter.bottom': 25, |
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| 52 | 'chart.numticks': 10, |
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| 53 | 'chart.numticks.inner': 50, |
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| 54 | 'chart.background.color': '#eee', |
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| 55 | 'chart.shadow': false, |
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| 56 | 'chart.shadow.color': 'rgba(0,0,0,0.5)', |
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| 57 | 'chart.shadow.blur': 3, |
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| 58 | 'chart.shadow.offsetx': 3, |
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| 59 | 'chart.shadow.offsety': 3, |
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| 60 | 'chart.title': '', |
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| 61 | 'chart.title.background': null, |
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| 62 | 'chart.title.hpos': null, |
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| 63 | 'chart.title.vpos': null, |
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| 64 | 'chart.width': 0, |
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| 65 | 'chart.height': 0, |
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| 66 | 'chart.text.size': 10, |
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| 67 | 'chart.text.color': 'black', |
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| 68 | 'chart.text.font': 'Verdana', |
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| 69 | 'chart.contextmenu': null, |
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| 70 | 'chart.units.pre': '', |
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| 71 | 'chart.units.post': '', |
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| 72 | 'chart.tooltips': [], |
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| 73 | 'chart.tooltips.effect': 'fade', |
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| 74 | 'chart.tooltips.css.class': 'RGraph_tooltip', |
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| 75 | 'chart.tooltips.highlight': true, |
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| 76 | 'chart.tooltips.coords.adjust': [0,0], |
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| 77 | 'chart.highlight.stroke': 'black', |
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| 78 | 'chart.highlight.fill': 'rgba(255,255,255,0.5)', |
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| 79 | 'chart.annotatable': false, |
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| 80 | 'chart.annotate.color': 'black', |
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| 81 | 'chart.zoom.mode': 'canvas', |
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| 82 | 'chart.zoom.factor': 1.5, |
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| 83 | 'chart.zoom.fade.in': true, |
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| 84 | 'chart.zoom.fade.out': true, |
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| 85 | 'chart.zoom.hdir': 'right', |
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| 86 | 'chart.zoom.vdir': 'down', |
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| 87 | 'chart.zoom.frames': 10, |
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| 88 | 'chart.zoom.delay': 50, |
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| 89 | 'chart.zoom.shadow': true, |
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| 90 | 'chart.zoom.background': true, |
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| 91 | 'chart.zoom.action': 'zoom', |
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| 92 | 'chart.arrows': false, |
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| 93 | 'chart.margin': 0, |
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| 94 | 'chart.resizable': false, |
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| 95 | 'chart.resize.handle.adjust': [0,0], |
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| 96 | 'chart.resize.handle.background': null, |
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| 97 | 'chart.label.inner': false, |
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| 98 | 'chart.labels.count': 10, |
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| 99 | 'chart.labels.position': 'right', |
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| 100 | 'chart.adjustable': false, |
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| 101 | 'chart.min': 0, |
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| 102 | 'chart.scale.decimals': 0, |
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| 103 | 'chart.key': [], |
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| 104 | 'chart.key.background': 'white', |
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| 105 | 'chart.key.position': 'graph', |
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| 106 | 'chart.key.halign': 'right', |
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| 107 | 'chart.key.shadow': false, |
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| 108 | 'chart.key.shadow.color': '#666', |
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| 109 | 'chart.key.shadow.blur': 3, |
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| 110 | 'chart.key.shadow.offsetx': 2, |
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| 111 | 'chart.key.shadow.offsety': 2, |
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| 112 | 'chart.key.position.gutter.boxed': true, |
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| 113 | 'chart.key.position.x': null, |
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| 114 | 'chart.key.position.y': null, |
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| 115 | 'chart.key.color.shape': 'square', |
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| 116 | 'chart.key.rounded': true, |
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| 117 | 'chart.key.linewidth': 1 |
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| 118 | } |
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| 119 | |
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| 120 | // Check for support |
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| 121 | if (!this.canvas) { |
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| 122 | alert('[PROGRESS] No canvas support'); |
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| 123 | return; |
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| 124 | } |
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| 125 | } |
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| 126 | |
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| 127 | |
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| 128 | /** |
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| 129 | * A generic setter |
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| 130 | * |
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| 131 | * @param string name The name of the property to set |
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| 132 | * @param string value The value of the poperty |
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| 133 | */ |
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| 134 | RGraph.VProgress.prototype.Set = function (name, value) |
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| 135 | { |
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| 136 | this.properties[name.toLowerCase()] = value; |
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| 137 | } |
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| 138 | |
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| 139 | |
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| 140 | /** |
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| 141 | * A generic getter |
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| 142 | * |
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| 143 | * @param string name The name of the property to get |
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| 144 | */ |
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| 145 | RGraph.VProgress.prototype.Get = function (name) |
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| 146 | { |
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| 147 | return this.properties[name.toLowerCase()]; |
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| 148 | } |
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| 149 | |
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| 150 | |
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| 151 | /** |
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| 152 | * Draws the progress bar |
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| 153 | */ |
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| 154 | RGraph.VProgress.prototype.Draw = function () |
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| 155 | { |
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| 156 | /** |
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| 157 | * Fire the onbeforedraw event |
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| 158 | */ |
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| 159 | RGraph.FireCustomEvent(this, 'onbeforedraw'); |
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| 160 | |
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| 161 | /** |
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| 162 | * Clear all of this canvases event handlers (the ones installed by RGraph) |
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| 163 | */ |
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| 164 | RGraph.ClearEventListeners(this.id); |
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| 165 | |
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| 166 | /** |
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| 167 | * This is new in May 2011 and facilitates indiviual gutter settings, |
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| 168 | * eg chart.gutter.left |
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| 169 | */ |
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| 170 | this.gutterLeft = this.Get('chart.gutter.left'); |
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| 171 | this.gutterRight = this.Get('chart.gutter.right'); |
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| 172 | this.gutterTop = this.Get('chart.gutter.top'); |
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| 173 | this.gutterBottom = this.Get('chart.gutter.bottom'); |
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| 174 | |
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| 175 | // Figure out the width and height |
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| 176 | this.width = RGraph.GetWidth(this) - this.gutterLeft - this.gutterRight; |
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| 177 | this.height = RGraph.GetHeight(this) - this.gutterTop - this.gutterBottom; |
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| 178 | this.coords = []; |
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| 179 | |
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| 180 | this.Drawbar(); |
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| 181 | this.DrawTickMarks(); |
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| 182 | this.DrawLabels(); |
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| 183 | |
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| 184 | this.context.stroke(); |
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| 185 | this.context.fill(); |
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| 186 | |
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| 187 | /** |
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| 188 | * Setup the context menu if required |
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| 189 | */ |
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| 190 | if (this.Get('chart.contextmenu')) { |
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| 191 | RGraph.ShowContext(this); |
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| 192 | } |
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| 193 | |
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| 194 | /** |
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| 195 | * Alternatively, show the tooltip if requested |
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| 196 | */ |
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| 197 | if (typeof(this.Get('chart.tooltips')) == 'function' || this.Get('chart.tooltips').length) { |
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| 198 | |
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| 199 | // Need to register this object for redrawing |
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| 200 | RGraph.Register(this); |
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| 201 | |
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| 202 | /** |
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| 203 | * Install the window onclick handler |
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| 204 | */ |
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| 205 | var window_onclick = function () |
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| 206 | { |
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| 207 | RGraph.Redraw(); |
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| 208 | } |
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| 209 | window.addEventListener('click', window_onclick, false); |
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| 210 | RGraph.AddEventListener('window_' + this.id, 'click', window_onclick); |
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| 211 | |
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| 212 | |
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| 213 | /** |
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| 214 | * Install the onclick event handler for the tooltips |
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| 215 | */ |
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| 216 | //this.canvas.onclick = function (e) |
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| 217 | var canvas_onclick_func = function (e) |
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| 218 | { |
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| 219 | e = RGraph.FixEventObject(e); |
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| 220 | |
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| 221 | var canvas = document.getElementById(this.id); |
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| 222 | var obj = canvas.__object__; |
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| 223 | |
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| 224 | /** |
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| 225 | * Redraw the graph first, in effect resetting the graph to as it was when it was first drawn |
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| 226 | * This "deselects" any already selected bar |
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| 227 | */ |
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| 228 | RGraph.Redraw(); |
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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 | |
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| 235 | /** |
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| 236 | * Loop through the bars determining if the mouse is over a bar |
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| 237 | */ |
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| 238 | for (var i=0; i<obj.coords.length; i++) { |
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| 239 | |
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| 240 | var mouseX = mouseCoords[0] - obj.Get('chart.tooltips.coords.adjust')[0]; |
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| 241 | var mouseY = mouseCoords[1] - obj.Get('chart.tooltips.coords.adjust')[1]; |
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| 242 | var left = obj.coords[i][0]; |
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| 243 | var top = obj.coords[i][1]; |
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| 244 | var width = obj.coords[i][2]; |
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| 245 | var height = obj.coords[i][3]; |
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| 246 | var idx = i; |
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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 | /** |
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| 251 | * Get the tooltip text |
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| 252 | */ |
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| 253 | if (typeof(obj.Get('chart.tooltips')) == 'function') { |
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| 254 | var text = obj.Get('chart.tooltips')(idx); |
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| 255 | |
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| 256 | } else if (typeof(obj.Get('chart.tooltips')) == 'object' && typeof(obj.Get('chart.tooltips')[idx]) == 'function') { |
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| 257 | var text = obj.Get('chart.tooltips')[idx](idx); |
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| 258 | |
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| 259 | } else if (typeof(obj.Get('chart.tooltips')) == 'object') { |
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| 260 | var text = obj.Get('chart.tooltips')[idx]; |
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| 261 | |
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| 262 | } else { |
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| 263 | var text = null; |
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| 264 | } |
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| 265 | |
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| 266 | /** |
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| 267 | * Show a tooltip if it's defined |
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| 268 | */ |
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| 269 | if (text) { |
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| 270 | |
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| 271 | obj.context.beginPath(); |
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| 272 | obj.context.strokeStyle = obj.Get('chart.highlight.stroke'); |
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| 273 | obj.context.fillStyle = obj.Get('chart.highlight.fill'); |
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| 274 | obj.context.strokeRect(left, top, width, height); |
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| 275 | obj.context.fillRect(left, top, width, height); |
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| 276 | |
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| 277 | obj.context.stroke(); |
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| 278 | obj.context.fill(); |
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| 279 | |
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| 280 | RGraph.Tooltip(canvas, text, e.pageX, e.pageY, i); |
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| 281 | } |
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| 282 | } |
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| 283 | } |
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| 284 | |
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| 285 | /** |
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| 286 | * Stop the event bubbling |
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| 287 | */ |
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| 288 | e.stopPropagation(); |
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| 289 | } |
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| 290 | this.canvas.addEventListener('click', canvas_onclick_func, false); |
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| 291 | RGraph.AddEventListener(this.id, 'click', canvas_onclick_func); |
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| 292 | |
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| 293 | |
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| 294 | /** |
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| 295 | * If the cursor is over a hotspot, change the cursor to a hand |
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| 296 | */ |
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| 297 | //this.canvas.onmousemove = function (e) |
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| 298 | var canvas_onmousemove_func = function (e) |
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| 299 | { |
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| 300 | e = RGraph.FixEventObject(e); |
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| 301 | |
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| 302 | var canvas = document.getElementById(this.id); |
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| 303 | var obj = canvas.__object__; |
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| 304 | |
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| 305 | /** |
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| 306 | * Get the mouse X/Y coordinates |
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| 307 | */ |
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| 308 | var mouseCoords = RGraph.getMouseXY(e); |
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| 309 | |
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| 310 | /** |
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| 311 | * Loop through the bars determining if the mouse is over a bar |
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| 312 | */ |
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| 313 | for (var i=0; i<obj.coords.length; i++) { |
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| 314 | |
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| 315 | var mouseX = mouseCoords[0] - obj.Get('chart.tooltips.coords.adjust')[0]; // In relation to the canvas |
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| 316 | var mouseY = mouseCoords[1] - obj.Get('chart.tooltips.coords.adjust')[1]; // In relation to the canvas |
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| 317 | var left = obj.coords[i][0]; |
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| 318 | var top = obj.coords[i][1]; |
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| 319 | var width = obj.coords[i][2]; |
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| 320 | var height = obj.coords[i][3]; |
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| 321 | |
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| 322 | if (mouseX >= left && mouseX <= (left + width) && mouseY >= top && mouseY <= (top + height) ) { |
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| 323 | canvas.style.cursor = 'pointer'; |
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| 324 | break; |
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| 325 | } |
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| 326 | |
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| 327 | canvas.style.cursor = 'default'; |
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| 328 | } |
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| 329 | } |
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| 330 | this.canvas.addEventListener('mousemove', canvas_onmousemove_func, false); |
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| 331 | RGraph.AddEventListener(this.id, 'mousemove', canvas_onmousemove_func); |
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| 332 | } |
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| 333 | |
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| 334 | /** |
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| 335 | * If the canvas is annotatable, do install the event handlers |
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| 336 | */ |
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| 337 | if (this.Get('chart.annotatable')) { |
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| 338 | RGraph.Annotate(this); |
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| 339 | } |
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| 340 | |
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| 341 | /** |
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| 342 | * This bit shows the mini zoom window if requested |
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| 343 | */ |
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| 344 | if (this.Get('chart.zoom.mode') == 'thumbnail' || this.Get('chart.zoom.mode') == 'area') { |
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| 345 | RGraph.ShowZoomWindow(this); |
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| 346 | } |
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| 347 | |
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| 348 | // Draw a key if necessary |
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| 349 | if (this.Get('chart.key').length) { |
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| 350 | RGraph.DrawKey(this, this.Get('chart.key'), this.Get('chart.colors')); |
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| 351 | } |
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| 352 | |
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| 353 | |
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| 354 | |
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| 355 | /** |
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| 356 | * This function enables resizing |
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| 357 | */ |
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| 358 | if (this.Get('chart.resizable')) { |
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| 359 | RGraph.AllowResizing(this); |
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| 360 | } |
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| 361 | |
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| 362 | /** |
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| 363 | * Instead of using RGraph.common.adjusting.js, handle them here |
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| 364 | */ |
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| 365 | if (this.Get('chart.adjustable')) { |
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| 366 | RGraph.AllowAdjusting(this); |
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| 367 | } |
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| 368 | |
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| 369 | /** |
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| 370 | * Fire the RGraph ondraw event |
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| 371 | */ |
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| 372 | RGraph.FireCustomEvent(this, 'ondraw'); |
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| 373 | } |
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| 374 | |
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| 375 | |
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| 376 | /** |
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| 377 | * Draw the bar itself |
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| 378 | */ |
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| 379 | RGraph.VProgress.prototype.Drawbar = function () |
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| 380 | { |
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| 381 | // Set a shadow if requested |
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| 382 | if (this.Get('chart.shadow')) { |
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| 383 | RGraph.SetShadow(this, this.Get('chart.shadow.color'), this.Get('chart.shadow.offsetx'), this.Get('chart.shadow.offsety'), this.Get('chart.shadow.blur')); |
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| 384 | } |
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| 385 | |
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| 386 | // Draw the shadow for MSIE |
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| 387 | if (RGraph.isIE8() && this.Get('chart.shadow')) { |
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| 388 | this.context.fillStyle = this.Get('chart.shadow.color'); |
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| 389 | this.context.fillRect(this.gutterLeft + this.Get('chart.shadow.offsetx'), this.gutterTop + this.Get('chart.shadow.offsety'), this.width, this.height); |
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| 390 | } |
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| 391 | |
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| 392 | // Draw the outline |
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| 393 | this.context.fillStyle = this.Get('chart.background.color'); |
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| 394 | this.context.strokeStyle = 'black'; |
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| 395 | this.context.strokeRect(this.gutterLeft, this.gutterTop, this.width, this.height); |
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| 396 | this.context.fillRect(this.gutterLeft, this.gutterTop, this.width, this.height); |
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| 397 | |
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| 398 | // Turn off any shadow |
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| 399 | RGraph.NoShadow(this); |
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| 400 | |
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| 401 | this.context.strokeStyle = 'black'; |
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| 402 | this.context.fillStyle = this.Get('chart.colors')[0]; |
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| 403 | var margin = this.Get('chart.margin'); |
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| 404 | var barHeight = RGraph.GetHeight(this) - this.gutterTop - this.gutterBottom; |
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| 405 | |
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| 406 | // Draw the actual bar itself |
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| 407 | if (typeof(this.value) == 'number') { |
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| 408 | |
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| 409 | this.context.lineWidth = 1; |
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| 410 | this.context.strokeStyle = '#999'; |
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| 411 | |
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| 412 | } else if (typeof(this.value) == 'object') { |
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| 413 | |
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| 414 | this.context.beginPath(); |
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| 415 | this.context.strokeStyle = '#999'; |
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| 416 | |
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| 417 | var startPoint = RGraph.GetHeight(this) - this.gutterBottom; |
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| 418 | |
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| 419 | for (var i=0; i<this.value.length; ++i) { |
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| 420 | |
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| 421 | var segmentHeight = ( (this.value[i] - this.Get('chart.min')) / (this.max - this.Get('chart.min')) ) * barHeight; |
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| 422 | |
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| 423 | this.context.fillStyle = this.Get('chart.colors')[i]; |
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| 424 | |
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| 425 | this.context.fillRect(this.gutterLeft + margin, startPoint - segmentHeight, this.width - margin - margin, segmentHeight); |
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| 426 | this.context.strokeRect(this.gutterLeft + margin, startPoint - segmentHeight, this.width - margin - margin, segmentHeight); |
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| 427 | |
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| 428 | |
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| 429 | // Store the coords |
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| 430 | this.coords.push([this.gutterLeft + margin, startPoint - segmentHeight, this.width - margin - margin, segmentHeight]); |
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| 431 | |
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| 432 | startPoint -= segmentHeight; |
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| 433 | } |
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| 434 | |
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| 435 | } |
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| 436 | |
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| 437 | /** |
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| 438 | * Inner tickmarks |
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| 439 | */ |
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| 440 | if (this.Get('chart.tickmarks.inner')) { |
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| 441 | |
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| 442 | var spacing = (RGraph.GetHeight(this) - this.gutterTop - this.gutterBottom) / this.Get('chart.numticks.inner'); |
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| 443 | |
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| 444 | this.context.lineWidth = 1; |
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| 445 | this.context.strokeStyle = '#999'; |
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| 446 | |
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| 447 | this.context.beginPath(); |
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| 448 | |
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| 449 | for (var y = this.gutterTop; y<RGraph.GetHeight(this) - this.gutterBottom; y+=spacing) { |
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| 450 | this.context.moveTo(this.gutterLeft, y); |
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| 451 | this.context.lineTo(this.gutterLeft + 3, y); |
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| 452 | |
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| 453 | this.context.moveTo(RGraph.GetWidth(this) - this.gutterRight, y); |
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| 454 | this.context.lineTo(RGraph.GetWidth(this) - this.gutterRight - 3, y); |
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| 455 | } |
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| 456 | |
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| 457 | this.context.stroke(); |
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| 458 | } |
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| 459 | |
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| 460 | /** |
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| 461 | * Draw the actual bar |
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| 462 | */ |
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| 463 | var barHeight = Math.min(this.height, ( (this.value - this.Get('chart.min')) / (this.max - this.Get('chart.min')) ) * this.height); |
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| 464 | |
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| 465 | this.context.beginPath(); |
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| 466 | this.context.strokeStyle = 'black'; |
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| 467 | |
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| 468 | if (typeof(this.value) == 'number') { |
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| 469 | this.context.strokeRect(this.gutterLeft + margin, this.gutterTop + this.height - barHeight, this.width - margin - margin, barHeight); |
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| 470 | this.context.fillRect(this.gutterLeft + margin, this.gutterTop + this.height - barHeight, this.width - margin - margin, barHeight); |
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| 471 | } |
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| 472 | |
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| 473 | |
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| 474 | /** |
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| 475 | * Draw the arrows indicating the level if requested |
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| 476 | */ |
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| 477 | if (this.Get('chart.arrows')) { |
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| 478 | var x = this.gutterLeft - 4; |
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| 479 | var y = RGraph.GetHeight(this) - this.gutterBottom - barHeight; |
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| 480 | |
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| 481 | this.context.lineWidth = 1; |
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| 482 | this.context.fillStyle = 'black'; |
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| 483 | this.context.strokeStyle = 'black'; |
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| 484 | |
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| 485 | this.context.beginPath(); |
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| 486 | this.context.moveTo(x, y); |
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| 487 | this.context.lineTo(x - 4, y - 2); |
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| 488 | this.context.lineTo(x - 4, y + 2); |
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| 489 | this.context.closePath(); |
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| 490 | |
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| 491 | this.context.stroke(); |
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| 492 | this.context.fill(); |
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| 493 | |
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| 494 | x += this.width + 8; |
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| 495 | |
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| 496 | this.context.beginPath(); |
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| 497 | this.context.moveTo(x, y); |
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| 498 | this.context.lineTo(x + 4, y - 2); |
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| 499 | this.context.lineTo(x + 4, y + 2); |
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| 500 | this.context.closePath(); |
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| 501 | |
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| 502 | this.context.stroke(); |
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| 503 | this.context.fill(); |
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| 504 | } |
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| 505 | |
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| 506 | |
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| 507 | |
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| 508 | |
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| 509 | /** |
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| 510 | * Draw the "in-bar" label |
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| 511 | */ |
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| 512 | if (this.Get('chart.label.inner')) { |
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| 513 | this.context.beginPath(); |
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| 514 | this.context.fillStyle = 'black'; |
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| 515 | RGraph.Text(this.context, this.Get('chart.text.font'), this.Get('chart.text.size') + 2, RGraph.GetWidth(this) / 2, RGraph.GetHeight(this) - this.gutterBottom - barHeight - 5, String(this.Get('chart.units.pre') + this.value + this.Get('chart.units.post')), 'bottom', 'center'); |
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| 516 | this.context.fill(); |
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| 517 | } |
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| 518 | |
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| 519 | |
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| 520 | // Store the coords |
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| 521 | this.coords.push([this.gutterLeft + margin, this.gutterTop + this.height - barHeight, this.width - margin - margin, barHeight]); |
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| 522 | } |
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| 523 | |
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| 524 | /** |
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| 525 | * The function that draws the tick marks. Apt name... |
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| 526 | */ |
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| 527 | RGraph.VProgress.prototype.DrawTickMarks = function () |
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| 528 | { |
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| 529 | this.context.strokeStyle = this.Get('chart.tickmarks.color'); |
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| 530 | |
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| 531 | if (this.Get('chart.tickmarks')) { |
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| 532 | this.context.beginPath(); |
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| 533 | for (var i=0; this.Get('chart.tickmarks.zerostart') ? i<=this.Get('chart.numticks') : i<this.Get('chart.numticks'); i++) { |
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| 534 | |
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| 535 | var startX = this.Get('chart.labels.position') == 'left' ? this.gutterLeft : this.canvas.width - this.Get('chart.gutter.right'); |
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| 536 | var endX = this.Get('chart.labels.position') == 'left' ? startX - 4 : startX + 4; |
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| 537 | var yPos = (this.height * (i / this.Get('chart.numticks'))) + this.gutterTop |
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| 538 | |
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| 539 | this.context.moveTo(startX, yPos); |
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| 540 | this.context.lineTo(endX, yPos); |
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| 541 | } |
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| 542 | this.context.stroke(); |
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| 543 | } |
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| 544 | } |
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| 545 | |
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| 546 | |
---|
| 547 | /** |
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| 548 | * The function that draws the labels |
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| 549 | */ |
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| 550 | RGraph.VProgress.prototype.DrawLabels = function () |
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| 551 | { |
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| 552 | this.context.fillStyle = this.Get('chart.text.color'); |
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| 553 | |
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| 554 | var context = this.context; |
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| 555 | var position = this.Get('chart.labels.position'); |
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| 556 | var xAlignment = position == 'left' ? 'right' : 'left'; |
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| 557 | var yAlignment = 'center'; |
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| 558 | var count = this.Get('chart.labels.count'); |
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| 559 | var units_pre = this.Get('chart.units.pre'); |
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| 560 | var units_post = this.Get('chart.units.post'); |
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| 561 | var text_size = this.Get('chart.text.size'); |
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| 562 | var text_font = this.Get('chart.text.font'); |
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| 563 | |
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| 564 | if (this.Get('chart.tickmarks')) { |
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| 565 | |
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| 566 | for (var i=0; i<count ; ++i) { |
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| 567 | |
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| 568 | var text = String( |
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| 569 | ((( (this.max - this.Get('chart.min')) / count) * (count - i)) + this.Get('chart.min')).toFixed(this.Get('chart.scale.decimals')) |
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| 570 | ); |
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| 571 | |
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| 572 | RGraph.Text(context, |
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| 573 | text_font, |
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| 574 | text_size, |
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| 575 | position == 'left' ? (this.gutterLeft - 5) : (RGraph.GetWidth(this) - this.gutterRight + 5), |
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| 576 | (((RGraph.GetHeight(this) - this.gutterTop - this.gutterBottom) / count) * i) + this.gutterTop, |
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| 577 | units_pre + text + units_post, |
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| 578 | yAlignment, |
---|
| 579 | xAlignment); |
---|
| 580 | } |
---|
| 581 | |
---|
| 582 | /** |
---|
| 583 | * Show zero? |
---|
| 584 | */ |
---|
| 585 | if (this.Get('chart.tickmarks.zerostart') && this.Get('chart.min') == 0) { |
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| 586 | RGraph.Text(context, |
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| 587 | text_font, |
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| 588 | text_size, |
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| 589 | position == 'left' ? (this.gutterLeft - 5) : (RGraph.GetWidth(this) - this.gutterRight + 5), |
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| 590 | RGraph.GetHeight(this) - this.gutterBottom, units_pre + String(this.Get('chart.min').toFixed(this.Get('chart.scale.decimals'))) + units_post, |
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| 591 | yAlignment, |
---|
| 592 | xAlignment); |
---|
| 593 | } |
---|
| 594 | |
---|
| 595 | /** |
---|
| 596 | * chart.ymin is set |
---|
| 597 | */ |
---|
| 598 | if (this.Get('chart.min') != 0) { |
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| 599 | RGraph.Text(context, |
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| 600 | text_font, |
---|
| 601 | text_size, |
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| 602 | position == 'left' ? (this.gutterLeft - 5) : (RGraph.GetWidth(this) - this.gutterRight + 5), |
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| 603 | RGraph.GetHeight(this) - this.gutterBottom, units_pre + String(this.Get('chart.min').toFixed(this.Get('chart.scale.decimals'))) + units_post, |
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| 604 | yAlignment, |
---|
| 605 | xAlignment); |
---|
| 606 | } |
---|
| 607 | } |
---|
| 608 | |
---|
| 609 | // Draw the title text |
---|
| 610 | if (this.Get('chart.title')) { |
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| 611 | RGraph.Text(context, |
---|
| 612 | text_font, |
---|
| 613 | text_size + 2, |
---|
| 614 | this.gutterLeft + ((this.canvas.width - this.gutterLeft - this.gutterRight) / 2), // X |
---|
| 615 | this.gutterTop - text_size, // Y |
---|
| 616 | this.Get('chart.title'), |
---|
| 617 | null, |
---|
| 618 | 'center',null, null, null, true); |
---|
| 619 | } |
---|
| 620 | } |
---|