javascript/examples/overlays.html · opendsl/mxgraph

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mxgraph

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examples

overlays.html

overlays.html 3.54 KB

<html>
<head>
	<title>Overlays example for mxGraph</title>

<script type="text/javascript">
		mxBasePath = '../src';
	</script>

<script type="text/javascript" src="../src/js/mxClient.js"></script>

<script type="text/javascript">

// Program starts here. Creates a sample graph in the
		// DOM node with the specified ID. This function is invoked
		// from the onLoad event handler of the document (see below).
		function main(container)
		{
			// Checks if browser is supported
			if (!mxClient.isBrowserSupported())
			{
				// Displays an error message if the browser is
				// not supported.
				mxUtils.error('Browser is not supported!', 200, false);
			}
			else
			{
				// Creates the graph inside the given container
				var graph = new mxGraph(container);
				
				// Disables basic selection and cell handling
				graph.setEnabled(false);
								
				// Highlights the vertices when the mouse enters
				var highlight = new mxCellTracker(graph, '#00FF00');
				
				// Enables tooltips for the overlays
				graph.setTooltips(true);

// Installs a handler for click events in the graph
				// that toggles the overlay for the respective cell
				graph.addListener(mxEvent.CLICK, function(sender, evt)
				{
					var cell = evt.getProperty('cell');
					
					if (cell != null)
					{
						var overlays = graph.getCellOverlays(cell);
						
						if (overlays == null)
						{
							// Creates a new overlay with an image and a tooltip
							var overlay = new mxCellOverlay(
								new mxImage('editors/images/overlays/check.png', 16, 16),
								'Overlay tooltip');

// Installs a handler for clicks on the overlay							
							overlay.addListener(mxEvent.CLICK, function(sender, evt2)
							{
								mxUtils.alert('Overlay clicked');
							});
							
							// Sets the overlay for the cell in the graph
							graph.addCellOverlay(cell, overlay);
						}
						else
						{
							graph.removeCellOverlays(cell);
						}
					}
				});
				
				// Installs a handler for double click events in the graph
				// that shows an alert box
				graph.addListener(mxEvent.DOUBLE_CLICK, function(sender, evt)
				{
					var cell = evt.getProperty('cell');
					mxUtils.alert('Doubleclick: '+((cell != null) ? 'Cell' : 'Graph'));
					evt.consume();
				});
				
				// Gets the default parent for inserting new cells. This
				// is normally the first child of the root (ie. layer 0).
				var parent = graph.getDefaultParent();
								
				// Adds cells to the model in a single step
				graph.getModel().beginUpdate();
				try
				{
					var v1 = graph.insertVertex(parent, null, 'Click,', 20, 20, 60, 40);
					var v2 = graph.insertVertex(parent, null, 'Doubleclick', 200, 150, 100, 40);
					var e1 = graph.insertEdge(parent, null, '', v1, v2);
				}
				finally
				{
					// Updates the display
					graph.getModel().endUpdate();
				}
			}
		};
	</script>
</head>

<body onload="main(document.getElementById('graphContainer'))">

<div id="graphContainer"
		style="overflow:hidden;position:relative;width:321px;height:241px;background:url('editors/images/grid.gif')">
	</div>
</body>
</html>

一键复制编辑原始数据按行查看历史

Gaudenz Alder 提交于 2014年10月03日 20:49 +08:00 . 3.1.0.0 release

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121

<!--
 Copyright (c) 2006-2013, JGraph Ltd

 Overlays example for mxGraph. This example demonstrates cell
 highlighting, overlays and handling click and double click
 events. See also: events.html for more event handling.
-->
<html>
<head>
	<title>Overlays example for mxGraph</title>

	<!-- Sets the basepath for the library if not in same directory -->
	<script type="text/javascript">
		mxBasePath = '../src';
	</script>

	<!-- Loads and initializes the library -->
	<script type="text/javascript" src="../src/js/mxClient.js"></script>

	<!-- Example code -->
	<script type="text/javascript">

		// Program starts here. Creates a sample graph in the
		// DOM node with the specified ID. This function is invoked
		// from the onLoad event handler of the document (see below).
		function main(container)
		{
			// Checks if browser is supported
			if (!mxClient.isBrowserSupported())
			{
				// Displays an error message if the browser is
				// not supported.
				mxUtils.error('Browser is not supported!', 200, false);
			}
			else
			{
				// Creates the graph inside the given container
				var graph = new mxGraph(container);
				
				// Disables basic selection and cell handling
				graph.setEnabled(false);
								
				// Highlights the vertices when the mouse enters
				var highlight = new mxCellTracker(graph, '#00FF00');
				
				// Enables tooltips for the overlays
				graph.setTooltips(true);

				// Installs a handler for click events in the graph
				// that toggles the overlay for the respective cell
				graph.addListener(mxEvent.CLICK, function(sender, evt)
				{
					var cell = evt.getProperty('cell');
					
					if (cell != null)
					{
						var overlays = graph.getCellOverlays(cell);
						
						if (overlays == null)
						{
							// Creates a new overlay with an image and a tooltip
							var overlay = new mxCellOverlay(
								new mxImage('editors/images/overlays/check.png', 16, 16),
								'Overlay tooltip');

							// Installs a handler for clicks on the overlay							
							overlay.addListener(mxEvent.CLICK, function(sender, evt2)
							{
								mxUtils.alert('Overlay clicked');
							});
							
							// Sets the overlay for the cell in the graph
							graph.addCellOverlay(cell, overlay);
						}
						else
						{
							graph.removeCellOverlays(cell);
						}
					}
				});
				
				// Installs a handler for double click events in the graph
				// that shows an alert box
				graph.addListener(mxEvent.DOUBLE_CLICK, function(sender, evt)
				{
					var cell = evt.getProperty('cell');
					mxUtils.alert('Doubleclick: '+((cell != null) ? 'Cell' : 'Graph'));
					evt.consume();
				});
				
				// Gets the default parent for inserting new cells. This
				// is normally the first child of the root (ie. layer 0).
				var parent = graph.getDefaultParent();
								
				// Adds cells to the model in a single step
				graph.getModel().beginUpdate();
				try
				{
					var v1 = graph.insertVertex(parent, null, 'Click,', 20, 20, 60, 40);
					var v2 = graph.insertVertex(parent, null, 'Doubleclick', 200, 150, 100, 40);
					var e1 = graph.insertEdge(parent, null, '', v1, v2);
				}
				finally
				{
					// Updates the display
					graph.getModel().endUpdate();
				}
			}
		};
	</script>
</head>

<!-- Page passes the container for the graph to the program -->
<body onload="main(document.getElementById('graphContainer'))">

	<!-- Creates a container for the graph with a grid wallpaper -->
	<div id="graphContainer"
		style="overflow:hidden;position:relative;width:321px;height:241px;background:url('editors/images/grid.gif')">
	</div>
</body>
</html>