<!--
Copyright (c) 2006-2013, JGraph Ltd
Thread example for mxGraph. This example demonstrates setting
overlays in mxGraph from within a timed function.
-->
<html>
<head>
<title>Thread 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);
// Gets the default parent for inserting new cells. This
// is normally the first child of the root (ie. layer 0).
var parent = graph.getDefaultParent();
var v1, v2, e1;
// Adds cells to the model in a single step
graph.getModel().beginUpdate();
try
{
v1 = graph.insertVertex(parent, null, 'Hello,', 20, 20, 80, 30);
v2 = graph.insertVertex(parent, null, 'World!', 200, 150, 80, 30);
e1 = graph.insertEdge(parent, null, '', v1, v2);
}
finally
{
// Updates the display
graph.getModel().endUpdate();
}
// Function to switch the overlay every 5 secs
var f = function()
{
var overlays = graph.getCellOverlays(v1);
if (overlays == null)
{
graph.removeCellOverlays(v2);
graph.setCellWarning(v1, 'Tooltip');
}
else
{
graph.removeCellOverlays(v1);
graph.setCellWarning(v2, 'Tooltip');
}
};
window.setInterval(f, 1000);
f();
}
};
</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;width:321px;height:241px;background:url('editors/images/grid.gif')">
</div>
</body>
</html>