js画图开发库--mxgraph--[toolbar-工具栏.html]

程序员文章站 2022-06-16 22:17:55
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js画图开发库--mxgraph--[toolbar-工具栏.html]
js画图开发库--mxgraph--[toolbar-工具栏.html]

博客分类： mxgraph js画图开发库mxgraphtoolbar工具栏
<!Doctype html>
<html xmlns=http://www.w3.org/1999/xhtml>
	<head>
	<meta http-equiv=Content-Type content="text/html;charset=utf-8">
	<title>工具栏</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()
		{
			//定义新连接的图标
			mxConnectionHandler.prototype.connectImage = new mxImage('images/connector.gif', 16, 16);
		
			// 检测浏览器兼容性
			if (!mxClient.isBrowserSupported())
			{
				mxUtils.error('Browser is not supported!', 200, false);
			}
			else
			{
				// 创建工具栏容器
				var tbContainer = document.createElement('div');
				tbContainer.style.position = 'absolute';
				tbContainer.style.overflow = 'hidden';
				tbContainer.style.padding = '2px';
				tbContainer.style.left = '0px';
				tbContainer.style.top = '26px';
				tbContainer.style.width = '24px';
				tbContainer.style.bottom = '0px';
				
				document.body.appendChild(tbContainer);
			
				// 创建工具栏监听工具
				var toolbar = new mxToolbar(tbContainer);
				toolbar.enabled = false
				
				// 在图形中创建容器 
				container = document.createElement('div');
				container.style.position = 'absolute';
				container.style.overflow = 'hidden';
				container.style.left = '24px';
				container.style.top = '26px';
				container.style.right = '0px';
				container.style.bottom = '0px';
				container.style.background = 'url("editors/images/grid.gif")';

				document.body.appendChild(container);
				
				// 解决IE浏览器忽略的样式
				if (mxClient.IS_QUIRKS)
				{
					document.body.style.overflow = 'hidden';
					new mxDivResizer(tbContainer);
					new mxDivResizer(container);
				}
	
				// 在容器中创建图形和模型
				var model = new mxGraphModel();
				var graph = new mxGraph(container, model);

				//在图中，启用新的连接
				graph.setConnectable(true);
				graph.setMultigraph(false);

				// 按下回车和空格键停止编辑
				var keyHandler = new mxKeyHandler(graph);
				var rubberband = new mxRubberband(graph);
				
				var addVertex = function(icon, w, h, style)
				{
					var vertex = new mxCell(null, new mxGeometry(0, 0, w, h), style);
					vertex.setVertex(true);
				
					addToolbarItem(graph, toolbar, vertex, icon);
				};
				
				addVertex('editors/images/rectangle.gif', 100, 40, '');
				addVertex('editors/images/rounded.gif', 100, 40, 'shape=rounded');
				addVertex('editors/images/ellipse.gif', 40, 40, 'shape=ellipse');
				addVertex('editors/images/rhombus.gif', 40, 40, 'shape=rhombus');
				addVertex('editors/images/triangle.gif', 40, 40, 'shape=triangle');
				addVertex('editors/images/cylinder.gif', 40, 40, 'shape=cylinder');
				addVertex('editors/images/actor.gif', 30, 40, 'shape=actor');
				toolbar.addLine();
				
				var button = mxUtils.button('Create toolbar entry from selection', function(evt)
				{
					if (!graph.isSelectionEmpty())
					{
						// 创建一个副本，并保存它的状态
						var cells = graph.getSelectionCells();
						var bounds = graph.getView().getBounds(cells);
						
						// 添加、删除功能
						var funct = function(graph, evt, cell)
						{
							graph.stopEditing(false);
			
							var pt = graph.getPointForEvent(evt);
							var dx = pt.x - bounds.x;
							var dy = pt.y - bounds.y;
							
							var clones = graph.importCells(cells, dx, dy);
							graph.setSelectionCells(clones);
						}
			
						// 创建拖动预览图标
						var img = toolbar.addMode(null, 'editors/images/outline.gif', funct);
						mxUtils.makeDraggable(img, graph, funct);
					}
				});
			
				
				button.style.position = 'absolute';
				button.style.left = '2px';
				button.style.top = '2px';
				
				document.body.appendChild(button);
			}
		}
		
		function addToolbarItem(graph, toolbar, prototype, image)
		{
			// 添加、删除功能
			var funct = function(graph, evt, cell)
			{
				graph.stopEditing(false);

				var pt = graph.getPointForEvent(evt);
				var vertex = graph.getModel().cloneCell(prototype);
				vertex.geometry.x = pt.x;
				vertex.geometry.y = pt.y;
					
				graph.addCell(vertex);
				graph.setSelectionCell(vertex);
			}

			// 创建拖动预览图标
			var img = toolbar.addMode(null, image, funct);
			mxUtils.makeDraggable(img, graph, funct);
		}

	</script>
</head>

<!-- 页面载入后启动程序. -->
<body onload="main();">
</body>
</html>
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