last demo import - cleaned
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129
static/mxgraph/examples/visibility.html
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129
static/mxgraph/examples/visibility.html
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<!--
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Copyright (c) 2006-2013, JGraph Ltd
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Visible example for mxGraph. This example demonstrates using
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various solutions for hiding and showing cells.
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-->
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<html>
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<head>
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<title>Visibility 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
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var graph = new mxGraph(container);
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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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var showOne = true;
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var showTwo = true;
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var showThree = true;
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// Overridden to implement dynamic conditions
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graph.isCellVisible = function(cell)
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{
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var result = mxGraph.prototype.isCellVisible.apply(this, arguments);
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if (result && cell.value != null)
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{
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result = (showOne && cell.value == '1') ||
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(showTwo && cell.value == '2') ||
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(showThree && cell.value == '3');
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}
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return result;
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};
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// Adds cells to the model in a single step
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var v1;
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graph.getModel().beginUpdate();
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try
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{
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v1 = graph.insertVertex(parent, null, '1', 20, 20, 80, 30);
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var v2 = graph.insertVertex(parent, null, '2', 200, 150, 80, 30);
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var e1 = graph.insertEdge(parent, null, '3', v1, v2);
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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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// Dynamic conditions (requires refresh)
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document.body.appendChild(mxUtils.button('Cond 1', function()
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{
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showOne = !showOne;
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graph.refresh();
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}));
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document.body.appendChild(mxUtils.button('Cond 2', function()
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{
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showTwo = !showTwo;
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graph.refresh();
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}));
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document.body.appendChild(mxUtils.button('Cond 3', function()
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{
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showThree = !showThree;
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graph.refresh();
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}));
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// Explicit show/hide
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document.body.appendChild(mxUtils.button('Toggle cell', function()
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{
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graph.toggleCells(!graph.getModel().isVisible(v1), [v1], true);
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}));
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// Explicit remove/add
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var removed = null;
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document.body.appendChild(mxUtils.button('Add/remove cell', function()
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{
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if (removed != null)
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{
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graph.addCells(removed);
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removed = null;
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}
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else
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{
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removed = graph.removeCells([v1]);
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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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<!-- 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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