Chart.js
上传用户:kimgenplus
上传日期:2016-06-05
资源大小:20877k
文件大小:2k
- /*
- 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.Chart");
- dojo.require("dojo.lang.common");
- dojo.require("dojo.charting.PlotArea");
- dojo.charting.Chart = function (node, title, description) {
- this.node = node || null;
- this.title = title || "Chart";
- this.description = description || "";
- this.plotAreas = [];
- };
- dojo.extend(dojo.charting.Chart, {addPlotArea:function (obj, doRender) {
- if (obj.x != null && obj.left == null) {
- obj.left = obj.x;
- }
- if (obj.y != null && obj.top == null) {
- obj.top = obj.y;
- }
- this.plotAreas.push(obj);
- if (doRender) {
- this.render();
- }
- }, onInitialize:function (chart) {
- }, onRender:function (chart) {
- }, onDestroy:function (chart) {
- }, initialize:function () {
- if (!this.node) {
- dojo.raise("dojo.charting.Chart.initialize: there must be a root node defined for the Chart.");
- }
- this.destroy();
- this.render();
- this.onInitialize(this);
- }, render:function () {
- if (this.node.style.position != "absolute") {
- this.node.style.position = "relative";
- }
- for (var i = 0; i < this.plotAreas.length; i++) {
- var area = this.plotAreas[i].plotArea;
- var node = area.initialize();
- node.style.position = "absolute";
- node.style.top = this.plotAreas[i].top + "px";
- node.style.left = this.plotAreas[i].left + "px";
- this.node.appendChild(node);
- area.render();
- }
- }, destroy:function () {
- for (var i = 0; i < this.plotAreas.length; i++) {
- this.plotAreas[i].plotArea.destroy();
- }
- while (this.node && this.node.childNodes && this.node.childNodes.length > 0) {
- this.node.removeChild(this.node.childNodes[0]);
- }
- }});