2015-11-03 17:35:20 +00:00
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Copyright (c) 2006-2013, JGraph Ltd
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Consistuent example for mxGraph. This example demonstrates using
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cells as parts of other cells.
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-->
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<html>
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<head>
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<title>Consistuent 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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/**
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* Redirects start drag to parent.
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*/
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var graphHandlerGetInitialCellForEvent = mxGraphHandler.prototype.getInitialCellForEvent;
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mxGraphHandler.prototype.getInitialCellForEvent = function(me)
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{
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var cell = graphHandlerGetInitialCellForEvent.apply(this, arguments);
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if (this.graph.isPart(cell))
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{
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cell = this.graph.getModel().getParent(cell)
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}
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return cell;
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};
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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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// Disables the built-in context menu
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mxEvent.disableContextMenu(container);
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// Creates the graph inside the given container
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var graph = new mxGraph(container);
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graph.foldingEnabled = false;
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graph.recursiveResize = true;
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// Helper method to mark parts with constituent=1 in the style
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graph.isPart = function(cell)
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{
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2020-03-31 14:07:32 +00:00
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return this.getCurrentCellStyle(cell)['constituent'] == '1';
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2015-11-03 17:35:20 +00:00
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};
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// Redirects selection to parent
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graph.selectCellForEvent = function(cell)
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{
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if (this.isPart(cell))
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{
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cell = this.model.getParent(cell);
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}
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mxGraph.prototype.selectCellForEvent.apply(this, arguments);
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};
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// Enables rubberband selection
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new mxRubberband(graph);
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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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graph.getModel().beginUpdate();
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try
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{
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var v1 = graph.insertVertex(parent, null, '', 20, 20, 120, 70);
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var v2 = graph.insertVertex(v1, null, 'Constituent', 20, 20, 80, 30, 'constituent=1;');
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}
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finally
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{
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// Updates the display
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graph.getModel().endUpdate();
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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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<!-- Page passes the container for the graph to the program -->
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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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style="position:relative;overflow:hidden;width:321px;height:241px;background:url('editors/images/grid.gif');cursor:default;">
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</div>
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</body>
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</html>
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