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alexandre_ |
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/*
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Copyright (c) 2004-2006, The Dojo Foundation
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All Rights Reserved.
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Licensed under the Academic Free License version 2.1 or above OR the
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modified BSD license. For more information on Dojo licensing, see:
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http://dojotoolkit.org/community/licensing.shtml
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*/
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dojo.provide("dojo.charting.svg.Axis");
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dojo.require("dojo.lang.common");
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if (dojo.render.svg.capable) {
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dojo.extend(dojo.charting.Axis, {renderLines:function (plotArea, plot, plane) {
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if (this.nodes.lines) {
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while (this.nodes.lines.childNodes.length > 0) {
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this.nodes.lines.removeChild(this.nodes.lines.childNodes[0]);
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}
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if (this.nodes.lines.parentNode) {
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this.nodes.lines.parentNode.removeChild(this.nodes.lines);
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this.nodes.lines = null;
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}
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}
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var area = plotArea.getArea();
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var g = this.nodes.lines = document.createElementNS(dojo.svg.xmlns.svg, "g");
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g.setAttribute("id", this.getId() + "-lines");
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for (var i = 0; i < this._labels.length; i++) {
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if (this._labels[i].value == this.origin) {
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continue;
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}
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var v = this.getCoord(this._labels[i].value, plotArea, plot);
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var l = document.createElementNS(dojo.svg.xmlns.svg, "line");
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l.setAttribute("style", "stroke:#999;stroke-width:1px;stroke-dasharray:1,4;");
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if (plane == "x") {
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l.setAttribute("y1", area.top);
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l.setAttribute("y2", area.bottom);
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l.setAttribute("x1", v);
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l.setAttribute("x2", v);
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} else {
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if (plane == "y") {
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l.setAttribute("y1", v);
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l.setAttribute("y2", v);
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l.setAttribute("x1", area.left);
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l.setAttribute("x2", area.right);
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}
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}
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g.appendChild(l);
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}
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return g;
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}, renderTicks:function (plotArea, plot, plane, coord) {
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if (this.nodes.ticks) {
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while (this.nodes.ticks.childNodes.length > 0) {
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this.nodes.ticks.removeChild(this.nodes.ticks.childNodes[0]);
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}
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if (this.nodes.ticks.parentNode) {
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this.nodes.ticks.parentNode.removeChild(this.nodes.ticks);
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this.nodes.ticks = null;
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}
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}
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var g = this.nodes.ticks = document.createElementNS(dojo.svg.xmlns.svg, "g");
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g.setAttribute("id", this.getId() + "-ticks");
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for (var i = 0; i < this._labels.length; i++) {
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var v = this.getCoord(this._labels[i].value, plotArea, plot);
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var l = document.createElementNS(dojo.svg.xmlns.svg, "line");
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l.setAttribute("style", "stroke:#000;stroke-width:1pt;");
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if (plane == "x") {
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l.setAttribute("y1", coord);
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l.setAttribute("y2", coord + 3);
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l.setAttribute("x1", v);
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l.setAttribute("x2", v);
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} else {
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if (plane == "y") {
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l.setAttribute("y1", v);
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l.setAttribute("y2", v);
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l.setAttribute("x1", coord - 2);
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l.setAttribute("x2", coord + 2);
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}
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}
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g.appendChild(l);
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}
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return g;
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}, renderLabels:function (plotArea, plot, plane, coord, textSize, anchor) {
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function createLabel(label, x, y, textSize, anchor) {
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var text = document.createElementNS(dojo.svg.xmlns.svg, "text");
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text.setAttribute("x", x);
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text.setAttribute("y", (plane == "x" ? y : y + 2));
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text.setAttribute("style", "text-anchor:" + anchor + ";font-family:sans-serif;font-size:" + textSize + "px;fill:#000;");
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text.appendChild(document.createTextNode(label));
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return text;
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}
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if (this.nodes.labels) {
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while (this.nodes.labels.childNodes.length > 0) {
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this.nodes.labels.removeChild(this.nodes.labels.childNodes[0]);
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}
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if (this.nodes.labels.parentNode) {
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this.nodes.labels.parentNode.removeChild(this.nodes.labels);
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this.nodes.labels = null;
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}
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}
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var g = this.nodes.labels = document.createElementNS(dojo.svg.xmlns.svg, "g");
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g.setAttribute("id", this.getId() + "-labels");
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for (var i = 0; i < this._labels.length; i++) {
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var v = this.getCoord(this._labels[i].value, plotArea, plot);
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if (plane == "x") {
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g.appendChild(createLabel(this._labels[i].label, v, coord, textSize, anchor));
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} else {
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if (plane == "y") {
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g.appendChild(createLabel(this._labels[i].label, coord, v, textSize, anchor));
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}
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}
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}
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return g;
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}, render:function (plotArea, plot, drawAgainst, plane) {
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if (!this._rerender && this.nodes.main) {
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return this.nodes.main;
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}
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this._rerender = false;
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var area = plotArea.getArea();
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var stroke = 1;
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var style = "stroke:#000;stroke-width:" + stroke + "px;";
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var textSize = 10;
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var coord = drawAgainst.getCoord(this.origin, plotArea, plot);
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this.nodes.main = document.createElementNS(dojo.svg.xmlns.svg, "g");
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var g = this.nodes.main;
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g.setAttribute("id", this.getId());
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var line = this.nodes.axis = document.createElementNS(dojo.svg.xmlns.svg, "line");
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if (plane == "x") {
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line.setAttribute("y1", coord);
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line.setAttribute("y2", coord);
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line.setAttribute("x1", area.left - stroke);
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line.setAttribute("x2", area.right + stroke);
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line.setAttribute("style", style);
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var y = coord + textSize + 2;
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if (this.showLines) {
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g.appendChild(this.renderLines(plotArea, plot, plane, y));
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}
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if (this.showTicks) {
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g.appendChild(this.renderTicks(plotArea, plot, plane, coord));
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}
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if (this.showLabels) {
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g.appendChild(this.renderLabels(plotArea, plot, plane, y, textSize, "middle"));
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}
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if (this.showLabel && this.label) {
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var x = plotArea.size.width / 2;
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var text = document.createElementNS(dojo.svg.xmlns.svg, "text");
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text.setAttribute("x", x);
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text.setAttribute("y", (coord + (textSize * 2) + (textSize / 2)));
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text.setAttribute("style", "text-anchor:middle;font-family:sans-serif;font-weight:bold;font-size:" + (textSize + 2) + "px;fill:#000;");
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text.appendChild(document.createTextNode(this.label));
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g.appendChild(text);
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}
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} else {
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line.setAttribute("x1", coord);
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line.setAttribute("x2", coord);
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line.setAttribute("y1", area.top);
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line.setAttribute("y2", area.bottom);
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line.setAttribute("style", style);
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var isMax = this.origin == drawAgainst.range.upper;
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var x = coord + (isMax ? 4 : -4);
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var anchor = isMax ? "start" : "end";
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if (this.showLines) {
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g.appendChild(this.renderLines(plotArea, plot, plane, x));
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}
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if (this.showTicks) {
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g.appendChild(this.renderTicks(plotArea, plot, plane, coord));
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}
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if (this.showLabels) {
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g.appendChild(this.renderLabels(plotArea, plot, plane, x, textSize, anchor));
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}
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if (this.showLabel && this.label) {
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var x = isMax ? (coord + (textSize * 2) + (textSize / 2)) : (coord - (textSize * 4));
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var y = plotArea.size.height / 2;
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var text = document.createElementNS(dojo.svg.xmlns.svg, "text");
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text.setAttribute("x", x);
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text.setAttribute("y", y);
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text.setAttribute("transform", "rotate(90, " + x + ", " + y + ")");
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text.setAttribute("style", "text-anchor:middle;font-family:sans-serif;font-weight:bold;font-size:" + (textSize + 2) + "px;fill:#000;");
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text.appendChild(document.createTextNode(this.label));
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g.appendChild(text);
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}
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}
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g.appendChild(line);
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return g;
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}});
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}
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