| 1318 |
alexandre_ |
1 |
/*
|
|
|
2 |
Copyright (c) 2004-2006, The Dojo Foundation
|
|
|
3 |
All Rights Reserved.
|
|
|
4 |
|
|
|
5 |
Licensed under the Academic Free License version 2.1 or above OR the
|
|
|
6 |
modified BSD license. For more information on Dojo licensing, see:
|
|
|
7 |
|
|
|
8 |
http://dojotoolkit.org/community/licensing.shtml
|
|
|
9 |
*/
|
|
|
10 |
|
|
|
11 |
dojo.provide("dojo.charting.PlotArea");
|
|
|
12 |
dojo.require("dojo.lang.common");
|
|
|
13 |
dojo.require("dojo.gfx.color");
|
|
|
14 |
dojo.require("dojo.gfx.color.hsl");
|
|
|
15 |
dojo.require("dojo.charting.Plot");
|
|
|
16 |
dojo.charting.PlotArea = function () {
|
|
|
17 |
var id = "dojo-charting-plotarea-" + dojo.charting.PlotArea.count++;
|
|
|
18 |
this.getId = function () {
|
|
|
19 |
return id;
|
|
|
20 |
};
|
|
|
21 |
this.setId = function (key) {
|
|
|
22 |
id = key;
|
|
|
23 |
};
|
|
|
24 |
this.areaType = "standard";
|
|
|
25 |
this.plots = [];
|
|
|
26 |
this.size = {width:600, height:400};
|
|
|
27 |
this.padding = {top:10, right:10, bottom:20, left:20};
|
|
|
28 |
this.nodes = {main:null, area:null, background:null, axes:null, plots:null};
|
|
|
29 |
this._color = {h:140, s:120, l:120, step:27};
|
|
|
30 |
};
|
|
|
31 |
dojo.charting.PlotArea.count = 0;
|
|
|
32 |
dojo.extend(dojo.charting.PlotArea, {nextColor:function () {
|
|
|
33 |
var rgb = dojo.gfx.color.hsl2rgb(this._color.h, this._color.s, this._color.l);
|
|
|
34 |
this._color.h = (this._color.h + this._color.step) % 360;
|
|
|
35 |
while (this._color.h < 140) {
|
|
|
36 |
this._color.h += this._color.step;
|
|
|
37 |
}
|
|
|
38 |
return dojo.gfx.color.rgb2hex(rgb[0], rgb[1], rgb[2]);
|
|
|
39 |
}, getArea:function () {
|
|
|
40 |
return {left:this.padding.left, right:this.size.width - this.padding.right, top:this.padding.top, bottom:this.size.height - this.padding.bottom, toString:function () {
|
|
|
41 |
var a = [this.top, this.right, this.bottom, this.left];
|
|
|
42 |
return "[" + a.join() + "]";
|
|
|
43 |
}};
|
|
|
44 |
}, getAxes:function () {
|
|
|
45 |
var axes = {};
|
|
|
46 |
for (var i = 0; i < this.plots.length; i++) {
|
|
|
47 |
var plot = this.plots[i];
|
|
|
48 |
axes[plot.axisX.getId()] = {axis:plot.axisX, drawAgainst:plot.axisY, plot:plot, plane:"x"};
|
|
|
49 |
axes[plot.axisY.getId()] = {axis:plot.axisY, drawAgainst:plot.axisX, plot:plot, plane:"y"};
|
|
|
50 |
}
|
|
|
51 |
return axes;
|
|
|
52 |
}, getLegendInfo:function () {
|
|
|
53 |
var a = [];
|
|
|
54 |
for (var i = 0; i < this.plots.length; i++) {
|
|
|
55 |
for (var j = 0; j < this.plots[i].series.length; j++) {
|
|
|
56 |
var data = this.plots[i].series[j].data;
|
|
|
57 |
a.push({label:data.label, color:data.color});
|
|
|
58 |
}
|
|
|
59 |
}
|
|
|
60 |
return a;
|
|
|
61 |
}, setAxesRanges:function () {
|
|
|
62 |
var ranges = {};
|
|
|
63 |
var axes = {};
|
|
|
64 |
for (var i = 0; i < this.plots.length; i++) {
|
|
|
65 |
var plot = this.plots[i];
|
|
|
66 |
var ranges = plot.getRanges();
|
|
|
67 |
var x = ranges.x;
|
|
|
68 |
var y = ranges.y;
|
|
|
69 |
var ax, ay;
|
|
|
70 |
if (!axes[plot.axisX.getId()]) {
|
|
|
71 |
axes[plot.axisX.getId()] = plot.axisX;
|
|
|
72 |
ranges[plot.axisX.getId()] = {upper:x.upper, lower:x.lower};
|
|
|
73 |
}
|
|
|
74 |
ax = ranges[plot.axisX.getId()];
|
|
|
75 |
ax.upper = Math.max(ax.upper, x.upper);
|
|
|
76 |
ax.lower = Math.min(ax.lower, x.lower);
|
|
|
77 |
if (!axes[plot.axisY.getId()]) {
|
|
|
78 |
axes[plot.axisY.getId()] = plot.axisY;
|
|
|
79 |
ranges[plot.axisY.getId()] = {upper:y.upper, lower:y.lower};
|
|
|
80 |
}
|
|
|
81 |
ay = ranges[plot.axisY.getId()];
|
|
|
82 |
ay.upper = Math.max(ay.upper, y.upper);
|
|
|
83 |
ay.lower = Math.min(ay.lower, y.lower);
|
|
|
84 |
}
|
|
|
85 |
for (var p in axes) {
|
|
|
86 |
axes[p].range = ranges[p];
|
|
|
87 |
}
|
|
|
88 |
}, render:function (kwArgs, applyToData) {
|
|
|
89 |
if (!this.nodes.main || !this.nodes.area || !this.nodes.background || !this.nodes.plots || !this.nodes.axes) {
|
|
|
90 |
this.initialize();
|
|
|
91 |
}
|
|
|
92 |
this.resize();
|
|
|
93 |
for (var i = 0; i < this.plots.length; i++) {
|
|
|
94 |
var plot = this.plots[i];
|
|
|
95 |
if (plot.dataNode) {
|
|
|
96 |
this.nodes.plots.removeChild(plot.dataNode);
|
|
|
97 |
}
|
|
|
98 |
var target = this.initializePlot(plot);
|
|
|
99 |
switch (plot.renderType) {
|
|
|
100 |
case dojo.charting.RenderPlotSeries.Grouped:
|
|
|
101 |
if (plot.series[0]) {
|
|
|
102 |
target.appendChild(plot.series[0].plotter(this, plot, kwArgs, applyToData));
|
|
|
103 |
}
|
|
|
104 |
break;
|
|
|
105 |
case dojo.charting.RenderPlotSeries.Singly:
|
|
|
106 |
default:
|
|
|
107 |
for (var j = 0; j < plot.series.length; j++) {
|
|
|
108 |
var series = plot.series[j];
|
|
|
109 |
var data = series.data.evaluate(kwArgs);
|
|
|
110 |
target.appendChild(series.plotter(data, this, plot, applyToData));
|
|
|
111 |
}
|
|
|
112 |
}
|
|
|
113 |
this.nodes.plots.appendChild(target);
|
|
|
114 |
}
|
|
|
115 |
}, destroy:function () {
|
|
|
116 |
for (var i = 0; i < this.plots.length; i++) {
|
|
|
117 |
this.plots[i].destroy();
|
|
|
118 |
}
|
|
|
119 |
for (var p in this.nodes) {
|
|
|
120 |
var node = this.nodes[p];
|
|
|
121 |
if (!node) {
|
|
|
122 |
continue;
|
|
|
123 |
}
|
|
|
124 |
if (!node.childNodes) {
|
|
|
125 |
continue;
|
|
|
126 |
}
|
|
|
127 |
while (node.childNodes.length > 0) {
|
|
|
128 |
node.removeChild(node.childNodes[0]);
|
|
|
129 |
}
|
|
|
130 |
this.nodes[p] = null;
|
|
|
131 |
}
|
|
|
132 |
}});
|
|
|
133 |
dojo.requireIf(dojo.render.svg.capable, "dojo.charting.svg.PlotArea");
|
|
|
134 |
dojo.requireIf(dojo.render.vml.capable, "dojo.charting.vml.PlotArea");
|
|
|
135 |
|