2012-05-21 20:32:26 +00:00
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2013-10-28 08:56:36 +00:00
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Copyright (c) 2006-2013, JGraph Ltd
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2012-05-21 20:32:26 +00:00
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Layers example for mxGraph. This example demonstrates using
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multiple layers to contain cells.
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-->
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<html>
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<head>
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<title>Layers example for mxGraph</title>
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<!-- Sets the basepath for the library if not in same directory -->
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<script type="text/javascript">
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mxBasePath = '../src';
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</script>
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<!-- Loads and initializes the library -->
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<script type="text/javascript" src="../src/js/mxClient.js"></script>
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<!-- Example code -->
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<script type="text/javascript">
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// Program starts here. Creates a sample graph in the
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// DOM node with the specified ID. This function is invoked
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// from the onLoad event handler of the document (see below).
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function main(container)
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{
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// Checks if the browser is supported
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if (!mxClient.isBrowserSupported())
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{
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// Displays an error message if the browser is not supported.
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mxUtils.error('Browser is not supported!', 200, false);
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}
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else
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{
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// Creates the graph inside the given container using a model
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// with a custom root and two layers. Layers can also be added
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// dynamically using var layer = model.add(root, new mxCell()).
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var root = new mxCell();
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var layer0 = root.insert(new mxCell());
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var layer1 = root.insert(new mxCell());
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var model = new mxGraphModel(root);
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var graph = new mxGraph(container, model);
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// Disables basic selection and cell handling
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graph.setEnabled(false);
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// Gets the default parent for inserting new cells. This
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// is normally the first child of the root (ie. layer 0).
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var parent = graph.getDefaultParent();
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// Adds cells to the model in a single step
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model.beginUpdate();
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try
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{
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var v1 = graph.insertVertex(layer1, null, 'Hello,', 20, 20, 80, 30, 'fillColor=#C0C0C0');
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var v2 = graph.insertVertex(layer1, null, 'Hello,', 200, 20, 80, 30, 'fillColor=#C0C0C0');
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var v3 = graph.insertVertex(layer0, null, 'World!', 110, 150, 80, 30);
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var e1 = graph.insertEdge(layer1, null, '', v1, v3, 'strokeColor=#0C0C0C');
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e1.geometry.points = [new mxPoint(60, 165)];
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var e2 = graph.insertEdge(layer0, null, '', v2, v3);
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e2.geometry.points = [new mxPoint(240, 165)];
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var e3 = graph.insertEdge(layer0, null, '', v1, v2,
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'edgeStyle=topToBottomEdgeStyle');
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e3.geometry.points = [new mxPoint(150, 30)];
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var e4 = graph.insertEdge(layer1, null, '', v2, v1,
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'strokeColor=#0C0C0C;edgeStyle=topToBottomEdgeStyle');
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e4.geometry.points = [new mxPoint(150, 40)];
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}
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finally
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{
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// Updates the display
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model.endUpdate();
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}
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document.body.appendChild(mxUtils.button('Layer 0', function()
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{
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model.beginUpdate();
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try
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{
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var visible = model.isVisible(layer0);
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model.setVisible(layer0, !visible);
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// Forces a complete refresh to hide the edges in other
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// layers which are connected to children of this layer
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graph.view.invalidate();
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}
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finally
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{
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model.endUpdate();
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}
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}));
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document.body.appendChild(mxUtils.button('Layer 1', function()
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{
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model.beginUpdate();
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try
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{
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var visible = model.isVisible(layer1);
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model.setVisible(layer1, !visible);
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// Forces a complete refresh to hide the edges in other
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// layers which are connected to children of this layer
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graph.view.invalidate();
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}
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finally
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{
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model.endUpdate();
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}
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}));
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}
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};
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</script>
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</head>
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2012-07-20 10:35:30 +00:00
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<!-- Page passes the container for the graph to the program -->
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2012-05-21 20:32:26 +00:00
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<body onload="main(document.getElementById('graphContainer'))">
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<!-- Creates a container for the graph with a grid wallpaper -->
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<div id="graphContainer"
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2012-12-18 13:09:38 +00:00
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style="overflow:hidden;position:relative;width:321px;height:241px;background:url('editors/images/grid.gif')">
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2012-05-21 20:32:26 +00:00
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</div>
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</body>
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</html>
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