js画图开发库--mxgraph--[stylesheet-样式表.html] -优快云博客

本文链接：https://blog.youkuaiyun.com/iteye_17920/article/details/82480443

本文展示如何使用MXGraph库定制JS画图应用的样式与交互，包括创建自定义标签边框、添加提示信息、设置默认元素样式等，通过实例代码演示实现过程。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

js画图开发库--mxgraph--[stylesheet-样式表.html]

<!Doctype html>
<html xmlns=http://www.w3.org/1999/xhtml>
	<head>
	<meta http-equiv=Content-Type content="text/html;charset=utf-8">
	<title>样式表</title>

	<!-- 如果本文件的包与src不是在同一个目录,就要将basepath设置到src目录下 -->
	<script type="text/javascript">
		mxBasePath = '../src';
	</script>

	<!-- 引入支持库文件 -->
	<script type="text/javascript" src="../src/js/mxClient.js"></script>
	
	<!-- 示例代码 -->
	<script type="text/javascript">

		//  程序在此方法中启动 
		function main(container)
		{
			// 检查浏览器支持
			if (!mxClient.isBrowserSupported())
			{
				mxUtils.error('Browser is not supported!', 200, false);
			}
			else
			{
				// 在容器中创建图形
				var graph = new mxGraph(container);
			
				// 禁用浏览器默认菜单
				graph.setEnabled(false);
				
				// 返回标签边框
				graph.getLabel = function(state)
				{
					var label = mxGraph.prototype.getLabel.apply(this, arguments);
					
					if (this.getModel().isEdge(state.cell))
					{
						return 'Transfer '+label;
					}
					else
					{
						return label;
					}
				};
								
				// 添加提示
				graph.setTooltips(true);
				graph.getTooltip = function(state)
				{
					var cell = state.cell;
					var model = this.getModel();
					
					if (model.isEdge(cell))
					{
						var source = this.getLabel(model.getTerminal(cell, true));
						var target = this.getLabel(model.getTerminal(cell, false));
						
						return source+' -> '+target;
					}
					else
					{
						return this.getLabel(cell);
					}
				};
				
				// 创建点元素的默认样式
				var style = [];
				style[mxConstants.STYLE_SHAPE] = mxConstants.SHAPE_RECTANGLE;
				style[mxConstants.STYLE_PERIMETER] = mxPerimeter.RectanglePerimeter;
				style[mxConstants.STYLE_STROKECOLOR] = 'gray';
				style[mxConstants.STYLE_ROUNDED] = true;
				style[mxConstants.STYLE_FILLCOLOR] = '#EEEEEE';
				style[mxConstants.STYLE_GRADIENTCOLOR] = 'white';
				style[mxConstants.STYLE_FONTCOLOR] = '#774400';
				style[mxConstants.STYLE_ALIGN] = mxConstants.ALIGN_CENTER;
				style[mxConstants.STYLE_VERTICAL_ALIGN] = mxConstants.ALIGN_MIDDLE;
				style[mxConstants.STYLE_FONTSIZE] = '12';
				style[mxConstants.STYLE_FONTSTYLE] = 1;
				graph.getStylesheet().putDefaultVertexStyle(style);
		
				// 创建连接线的默认样式
				style = [];
				style[mxConstants.STYLE_SHAPE] = mxConstants.SHAPE_CONNECTOR;
				style[mxConstants.STYLE_STROKECOLOR] = '#6482B9';
				style[mxConstants.STYLE_ALIGN] = mxConstants.ALIGN_CENTER;
				style[mxConstants.STYLE_VERTICAL_ALIGN] = mxConstants.ALIGN_MIDDLE;
				style[mxConstants.STYLE_EDGE] = mxEdgeStyle.ElbowConnector;
				style[mxConstants.STYLE_ENDARROW] = mxConstants.ARROW_CLASSIC;
				style[mxConstants.STYLE_FONTSIZE] = '10';
				graph.getStylesheet().putDefaultEdgeStyle(style);

				// 创建默认窗体
				var parent = graph.getDefaultParent();
								
				// 启动更新事务
				graph.getModel().beginUpdate();
				try
				{
					var v1 = graph.insertVertex(parent, null, 'Interval 1', 20, 20, 180, 30);
					var v2 = graph.insertVertex(parent, null, 'Interval 2', 140, 80, 280, 30);
					var v3 = graph.insertVertex(parent, null, 'Interval 3', 200, 140, 360, 30);
					var v4 = graph.insertVertex(parent, null, 'Interval 4', 480, 200, 120, 30);
					var v5 = graph.insertVertex(parent, null, 'Interval 5', 60, 260, 400, 30);
					var e1 = graph.insertEdge(parent, null, '1', v1, v2);
					e1.getGeometry().points = [{x: 160, y: 60}];
					var e2 = graph.insertEdge(parent, null, '2', v1, v5);
					e2.getGeometry().points = [{x: 80, y: 60}];
					var e3 = graph.insertEdge(parent, null, '3', v2, v3);
					e3.getGeometry().points = [{x: 280, y: 120}];
					var e4 = graph.insertEdge(parent, null, '4', v3, v4);
					e4.getGeometry().points = [{x: 500, y: 180}];
					var e5 = graph.insertEdge(parent, null, '5', v3, v5);
					e5.getGeometry().points = [{x: 380, y: 180}];
				}
				finally
				{
					// 结束更新事务
					graph.getModel().endUpdate();
				}
			}
		};
	</script>
</head>

<!-- 页面载入时启动程序 -->
<body οnlοad="main(document.getElementById('graphContainer'))">
 
	<!-- 创建带网格壁纸和曲线的一个容器  -->
	<div id="graphContainer"
		style="overflow:hidden;position:relative;width:621px;height:311px;cursor:default;">
	</div>
</body>
</html>