<!--
Copyright (c) 2006-2013, JGraph Ltd
Stylesheet example for mxGraph. This example demonstrates using
a custom stylesheet and control points in edges, as well as
overriding the getLabel and getTooltip function to return
dynamic information, and making a supercall in JavaScript.
-->
<html>
<head>
<title>Stylesheet 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 DOM node.
var graph = new mxGraph(container);
// Disables basic selection and cell handling
graph.setEnabled(false);
// Returns a special label for edges. Note: This does
// a supercall to use the default implementation.
graph.getLabel = function(cell)
{
var label = mxGraph.prototype.getLabel.apply(this, arguments);
if (this.getModel().isEdge(cell))
{
return 'Transfer '+label;
}
else
{
return label;
}
};
// Installs a custom global tooltip
graph.setTooltips(true);
graph.getTooltip = function(state)
{
var cell = state.cell;
var model = this.getModel();
if (model.isEdge(cell))
{
var source = this.getLabel(model.getTerminal(cell, true));
var target = this.getLabel(model.getTerminal(cell, false));
return source+' -> '+target;
}
else
{
return this.getLabel(cell);
}
};
// Creates the default style for vertices
var style = [];
style[mxConstants.STYLE_SHAPE] = mxConstants.SHAPE_RECTANGLE;
style[mxConstants.STYLE_PERIMETER] = mxPerimeter.RectanglePerimeter;
style[mxConstants.STYLE_STROKECOLOR] = 'gray';
style[mxConstants.STYLE_ROUNDED] = true;
style[mxConstants.STYLE_FILLCOLOR] = '#EEEEEE';
style[mxConstants.STYLE_GRADIENTCOLOR] = 'white';
style[mxConstants.STYLE_FONTCOLOR] = '#774400';
style[mxConstants.STYLE_ALIGN] = mxConstants.ALIGN_CENTER;
style[mxConstants.STYLE_VERTICAL_ALIGN] = mxConstants.ALIGN_MIDDLE;
style[mxConstants.STYLE_FONTSIZE] = '12';
style[mxConstants.STYLE_FONTSTYLE] = 1;
graph.getStylesheet().putDefaultVertexStyle(style);
// Creates the default style for edges
style = [];
style[mxConstants.STYLE_SHAPE] = mxConstants.SHAPE_CONNECTOR;
style[mxConstants.STYLE_STROKECOLOR] = '#6482B9';
style[mxConstants.STYLE_ALIGN] = mxConstants.ALIGN_CENTER;
style[mxConstants.STYLE_VERTICAL_ALIGN] = mxConstants.ALIGN_MIDDLE;
style[mxConstants.STYLE_EDGE] = mxEdgeStyle.ElbowConnector;
style[mxConstants.STYLE_ENDARROW] = mxConstants.ARROW_CLASSIC;
style[mxConstants.STYLE_FONTSIZE] = '10';
graph.getStylesheet().putDefaultEdgeStyle(style);
// 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
{
var v1 = graph.insertVertex(parent, null, 'Interval 1', 20, 20, 180, 30);
var v2 = graph.insertVertex(parent, null, 'Interval 2', 140, 80, 280, 30);
var v3 = graph.insertVertex(parent, null, 'Interval 3', 200, 140, 360, 30);
var v4 = graph.insertVertex(parent, null, 'Interval 4', 480, 200, 120, 30);
var v5 = graph.insertVertex(parent, null, 'Interval 5', 60, 260, 400, 30);
var e1 = graph.insertEdge(parent, null, '1', v1, v2);
e1.getGeometry().points = [{x: 160, y: 60}];
var e2 = graph.insertEdge(parent, null, '2', v1, v5);
e2.getGeometry().points = [{x: 80, y: 60}];
var e3 = graph.insertEdge(parent, null, '3', v2, v3);
e3.getGeometry().points = [{x: 280, y: 120}];
var e4 = graph.insertEdge(parent, null, '4', v3, v4);
e4.getGeometry().points = [{x: 500, y: 180}];
var e5 = graph.insertEdge(parent, null, '5', v3, v5);
e5.getGeometry().points = [{x: 380, y: 180}];
}
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="overflow:hidden;position:relative;width:621px;height:311px;cursor:default;">
</div>
</body>
</html>