<!--
Copyright (c) 2006-2013, JGraph Ltd
Indicators example for mxGraph. This example demonstrates the use of
indicators, which are small subshapes inside a parent shape, typically
an mxLabel.
-->
<html>
<head>
<title>Indicators 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 the 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);
graph.setConnectable(true);
new mxKeyHandler(graph);
// Enables moving of vertex labels
graph.vertexLabelsMovable = true;
// Creates a style with an indicator
var style = graph.getStylesheet().getDefaultVertexStyle();
style[mxConstants.STYLE_SHAPE] = 'label';
style[mxConstants.STYLE_VERTICAL_ALIGN] = 'bottom';
style[mxConstants.STYLE_INDICATOR_SHAPE] = 'ellipse';
style[mxConstants.STYLE_INDICATOR_WIDTH] = 34;
style[mxConstants.STYLE_INDICATOR_HEIGHT] = 34;
style[mxConstants.STYLE_IMAGE_VERTICAL_ALIGN] = 'top'; // indicator v-alignment
style[mxConstants.STYLE_IMAGE_ALIGN] = 'center';
style[mxConstants.STYLE_INDICATOR_COLOR] = 'green';
delete style[mxConstants.STYLE_STROKECOLOR]; // transparent
delete style[mxConstants.STYLE_FILLCOLOR]; // transparent
// Creates a style with an indicator
var style = graph.getStylesheet().getDefaultEdgeStyle();
style[mxConstants.STYLE_EDGE] = mxEdgeStyle.ElbowConnector;
style[mxConstants.STYLE_ELBOW] = mxConstants.ELBOW_VERTICAL;
style[mxConstants.STYLE_ROUNDED] = true;
// 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
{
graph.insertVertex(parent, null, 'Bottom Label', 80, 80, 80, 60);
graph.insertVertex(parent, null, 'Top Label', 200, 80, 60, 60,
'indicatorShape=actor;indicatorWidth=28;indicatorColor=blue;imageVerticalAlign=bottom;verticalAlign=top');
graph.insertVertex(parent, null, 'Right Label', 300, 80, 120, 60,
'indicatorShape=cloud;indicatorWidth=40;indicatorColor=#00FFFF;imageVerticalAlign=center;verticalAlign=middle;imageAlign=left;align=left;spacingLeft=44');
}
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="position:absolute;top:0px;left:0px;overflow:hidden;width:100%;height:100%;">
</div>
</body>
</html>