Subversion Repositories Applications.papyrus

/*
        Copyright (c) 2004-2006, The Dojo Foundation
        All Rights Reserved.

        Licensed under the Academic Free License version 2.1 or above OR the
        modified BSD license. For more information on Dojo licensing, see:

                http://dojotoolkit.org/community/licensing.shtml
*/

dojo.provide("dojo.charting.PlotArea");
dojo.require("dojo.lang.common");
dojo.require("dojo.gfx.color");
dojo.require("dojo.gfx.color.hsl");
dojo.require("dojo.charting.Plot");
dojo.charting.PlotArea = function () {
        var id = "dojo-charting-plotarea-" + dojo.charting.PlotArea.count++;
        this.getId = function () {
                return id;
        };
        this.setId = function (key) {
                id = key;
        };
        this.areaType = "standard";
        this.plots = [];
        this.size = {width:600, height:400};
        this.padding = {top:10, right:10, bottom:20, left:20};
        this.nodes = {main:null, area:null, background:null, axes:null, plots:null};
        this._color = {h:140, s:120, l:120, step:27};
};
dojo.charting.PlotArea.count = 0;
dojo.extend(dojo.charting.PlotArea, {nextColor:function () {
        var rgb = dojo.gfx.color.hsl2rgb(this._color.h, this._color.s, this._color.l);
        this._color.h = (this._color.h + this._color.step) % 360;
        while (this._color.h < 140) {
                this._color.h += this._color.step;
        }
        return dojo.gfx.color.rgb2hex(rgb[0], rgb[1], rgb[2]);
}, getArea:function () {
        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 () {
                var a = [this.top, this.right, this.bottom, this.left];
                return "[" + a.join() + "]";
        }};
}, getAxes:function () {
        var axes = {};
        for (var i = 0; i < this.plots.length; i++) {
                var plot = this.plots[i];
                axes[plot.axisX.getId()] = {axis:plot.axisX, drawAgainst:plot.axisY, plot:plot, plane:"x"};
                axes[plot.axisY.getId()] = {axis:plot.axisY, drawAgainst:plot.axisX, plot:plot, plane:"y"};
        }
        return axes;
}, getLegendInfo:function () {
        var a = [];
        for (var i = 0; i < this.plots.length; i++) {
                for (var j = 0; j < this.plots[i].series.length; j++) {
                        var data = this.plots[i].series[j].data;
                        a.push({label:data.label, color:data.color});
                }
        }
        return a;
}, setAxesRanges:function () {
        var ranges = {};
        var axes = {};
        for (var i = 0; i < this.plots.length; i++) {
                var plot = this.plots[i];
                var ranges = plot.getRanges();
                var x = ranges.x;
                var y = ranges.y;
                var ax, ay;
                if (!axes[plot.axisX.getId()]) {
                        axes[plot.axisX.getId()] = plot.axisX;
                        ranges[plot.axisX.getId()] = {upper:x.upper, lower:x.lower};
                }
                ax = ranges[plot.axisX.getId()];
                ax.upper = Math.max(ax.upper, x.upper);
                ax.lower = Math.min(ax.lower, x.lower);
                if (!axes[plot.axisY.getId()]) {
                        axes[plot.axisY.getId()] = plot.axisY;
                        ranges[plot.axisY.getId()] = {upper:y.upper, lower:y.lower};
                }
                ay = ranges[plot.axisY.getId()];
                ay.upper = Math.max(ay.upper, y.upper);
                ay.lower = Math.min(ay.lower, y.lower);
        }
        for (var p in axes) {
                axes[p].range = ranges[p];
        }
}, render:function (kwArgs, applyToData) {
        if (!this.nodes.main || !this.nodes.area || !this.nodes.background || !this.nodes.plots || !this.nodes.axes) {
                this.initialize();
        }
        this.resize();
        for (var i = 0; i < this.plots.length; i++) {
                var plot = this.plots[i];
                if (plot.dataNode) {
                        this.nodes.plots.removeChild(plot.dataNode);
                }
                var target = this.initializePlot(plot);
                switch (plot.renderType) {
                  case dojo.charting.RenderPlotSeries.Grouped:
                        if (plot.series[0]) {
                                target.appendChild(plot.series[0].plotter(this, plot, kwArgs, applyToData));
                        }
                        break;
                  case dojo.charting.RenderPlotSeries.Singly:
                  default:
                        for (var j = 0; j < plot.series.length; j++) {
                                var series = plot.series[j];
                                var data = series.data.evaluate(kwArgs);
                                target.appendChild(series.plotter(data, this, plot, applyToData));
                        }
                }
                this.nodes.plots.appendChild(target);
        }
}, destroy:function () {
        for (var i = 0; i < this.plots.length; i++) {
                this.plots[i].destroy();
        }
        for (var p in this.nodes) {
                var node = this.nodes[p];
                if (!node) {
                        continue;
                }
                if (!node.childNodes) {
                        continue;
                }
                while (node.childNodes.length > 0) {
                        node.removeChild(node.childNodes[0]);
                }
                this.nodes[p] = null;
        }
}});
dojo.requireIf(dojo.render.svg.capable, "dojo.charting.svg.PlotArea");
dojo.requireIf(dojo.render.vml.capable, "dojo.charting.vml.PlotArea");