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.Axis");
dojo.require("dojo.lang.common");
dojo.charting.Axis = function (label, scale, labels) {
        var id = "dojo-charting-axis-" + dojo.charting.Axis.count++;
        this.getId = function () {
                return id;
        };
        this.setId = function (key) {
                id = key;
        };
        this.scale = scale || "linear";
        this.label = label || "";
        this.showLabel = true;
        this.showLabels = true;
        this.showLines = false;
        this.showTicks = false;
        this.range = {upper:100, lower:0};
        this.origin = "min";
        this._origin = null;
        this.labels = labels || [];
        this._labels = [];
        this.nodes = {main:null, axis:null, label:null, labels:null, lines:null, ticks:null};
        this._rerender = false;
};
dojo.charting.Axis.count = 0;
dojo.extend(dojo.charting.Axis, {getCoord:function (val, plotArea, plot) {
        val = parseFloat(val, 10);
        var area = plotArea.getArea();
        if (plot.axisX == this) {
                var offset = 0 - this.range.lower;
                var min = this.range.lower + offset;
                var max = this.range.upper + offset;
                val += offset;
                return (val * ((area.right - area.left) / max)) + area.left;
        } else {
                var max = this.range.upper;
                var min = this.range.lower;
                var offset = 0;
                if (min < 0) {
                        offset += Math.abs(min);
                }
                max += offset;
                min += offset;
                val += offset;
                var pmin = area.bottom;
                var pmax = area.top;
                return (((pmin - pmax) / (max - min)) * (max - val)) + pmax;
        }
}, initializeOrigin:function (drawAgainst, plane) {
        if (this._origin == null) {
                this._origin = this.origin;
        }
        if (isNaN(this._origin)) {
                if (this._origin.toLowerCase() == "max") {
                        this.origin = drawAgainst.range[(plane == "y") ? "upper" : "lower"];
                } else {
                        if (this._origin.toLowerCase() == "min") {
                                this.origin = drawAgainst.range[(plane == "y") ? "lower" : "upper"];
                        } else {
                                this.origin = 0;
                        }
                }
        }
}, initializeLabels:function () {
        this._labels = [];
        if (this.labels.length == 0) {
                this.showLabels = false;
                this.showLines = false;
                this.showTicks = false;
        } else {
                if (this.labels[0].label && this.labels[0].value != null) {
                        for (var i = 0; i < this.labels.length; i++) {
                                this._labels.push(this.labels[i]);
                        }
                } else {
                        if (!isNaN(this.labels[0])) {
                                for (var i = 0; i < this.labels.length; i++) {
                                        this._labels.push({label:this.labels[i], value:this.labels[i]});
                                }
                        } else {
                                var a = [];
                                for (var i = 0; i < this.labels.length; i++) {
                                        a.push(this.labels[i]);
                                }
                                var s = a.shift();
                                this._labels.push({label:s, value:this.range.lower});
                                if (a.length > 0) {
                                        var s = a.pop();
                                        this._labels.push({label:s, value:this.range.upper});
                                }
                                if (a.length > 0) {
                                        var range = this.range.upper - this.range.lower;
                                        var step = range / (this.labels.length - 1);
                                        for (var i = 1; i <= a.length; i++) {
                                                this._labels.push({label:a[i - 1], value:this.range.lower + (step * i)});
                                        }
                                }
                        }
                }
        }
}, initialize:function (plotArea, plot, drawAgainst, plane) {
        this.destroy();
        this.initializeOrigin(drawAgainst, plane);
        this.initializeLabels();
        var node = this.render(plotArea, plot, drawAgainst, plane);
        return node;
}, destroy:function () {
        for (var p in this.nodes) {
                while (this.nodes[p] && this.nodes[p].childNodes.length > 0) {
                        this.nodes[p].removeChild(this.nodes[p].childNodes[0]);
                }
                if (this.nodes[p] && this.nodes[p].parentNode) {
                        this.nodes[p].parentNode.removeChild(this.nodes[p]);
                }
                this.nodes[p] = null;
        }
}});
dojo.requireIf(dojo.render.svg.capable, "dojo.charting.svg.Axis");
dojo.requireIf(dojo.render.vml.capable, "dojo.charting.vml.Axis");