2012-05-21 20:32:26 +00:00
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2012-06-22 13:48:16 +00:00
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$Id: codec.html,v 1.23 2012-06-20 17:01:33 gaudenz Exp $
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2012-05-21 20:32:26 +00:00
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Copyright (c) 2006-2010, JGraph Ltd
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Codec example for mxGraph. This example demonstrates dynamically
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creating a graph from XML and encoding the model into XML, as well
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as changing the default style for edges in-place.
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-->
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<html>
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<head>
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<title>Codec 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 browser is supported
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if (mxClient.isBrowserSupported())
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{
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// This code can replace multiple textareas with encoded graphs
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var textareas = document.getElementsByTagName('textarea');
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var count = textareas.length;
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for (var i = 0; i < count; i++)
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{
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try
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{
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var container = document.createElement('div');
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container.style.cssText = textareas[i].style.cssText;
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container.style.position = 'relative';
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container.style.overflow = 'hidden';
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// Creates a read-only graph in the new container
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var graph = new mxGraph(container);
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graph.setEnabled(false);
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// Changes the default style for edges "in-place"
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var style = graph.getStylesheet().getDefaultEdgeStyle();
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style[mxConstants.STYLE_EDGE] = mxEdgeStyle.ElbowConnector;
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// Reads the XML into the graph
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var xml = textareas[i].value;
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var xmlDocument = mxUtils.parseXml(xml);
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var decoder = new mxCodec(xmlDocument);
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var node = xmlDocument.documentElement;
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decoder.decode(node, graph.getModel());
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// Fit the container to the graph size
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var bounds = graph.getGraphBounds();
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container.style.width = (bounds.x + bounds.width + 1) + 'px';
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container.style.height = (bounds.y + bounds.height + 1) + 'px';
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document.body.insertBefore(container, textareas[i]);
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var button = mxUtils.button('View XML', function()
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{
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var encoder = new mxCodec();
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var node = encoder.encode(graph.getModel());
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mxUtils.popup(mxUtils.getPrettyXml(node), true);
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});
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document.body.insertBefore(button, container.nextSibling);
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// Hides the textarea
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textareas[i].style.visibility = 'hidden';
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}
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catch (err)
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{
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// ignore
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throw err;
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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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<!-- Calls the main function after the page has loaded. Container is dynamically created. -->
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<body onload="main();">
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<!-- Contains a graph description which will be converted. -->
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2012-06-22 13:48:16 +00:00
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<textarea style="background:#EEEEEE;"><mxGraphModel><root><mxCell id="0"/><mxCell id="1" parent="0"/><mxCell id="2" vertex="1" parent="1" value="Interval 1"><mxGeometry x="380" y="20" width="140" height="30" as="geometry"/></mxCell><mxCell id="3" vertex="1" parent="1" value="Interval 2"><mxGeometry x="200" y="80" width="380" height="30" as="geometry"/></mxCell><mxCell id="4" vertex="1" parent="1" value="Interval 3"><mxGeometry x="40" y="140" width="260" height="30" as="geometry"/></mxCell><mxCell id="5" vertex="1" parent="1" value="Interval 4"><mxGeometry x="120" y="200" width="240" height="30" as="geometry"/></mxCell><mxCell id="6" vertex="1" parent="1" value="Interval 5"><mxGeometry x="420" y="260" width="80" height="30" as="geometry"/></mxCell><mxCell id="7" edge="1" source="2" target="3" parent="1" value="Transfer1"><mxGeometry as="geometry"><Array as="points"><Object x="420" y="60"/></Array></mxGeometry></mxCell><mxCell id="8" edge="1" source="2" target="6" parent="1" value="Transfer2"><mxGeometry as="geometry" relative="1" y="-30"><Array as="points"><Object x="600" y="60"/></Array></mxGeometry></mxCell><mxCell id="9" edge="1" source="3" target="4" parent="1" value="Transfer3"><mxGeometry as="geometry"><Array as="points"><Object x="260" y="120"/></Array></mxGeometry></mxCell><mxCell id="10" edge="1" source="4" target="5" parent="1" value="Transfer4"><mxGeometry as="geometry"><Array as="points"><Object x="200" y="180"/></Array></mxGeometry></mxCell><mxCell id="11" edge="1" source="4" target="6" parent="1" value="Transfer5"><mxGeometry as="geometry" relative="1" y="-10"><Array as="points"><Object x="460" y="155"/></Array></mxGeometry></mxCell></root></mxGraphModel></textarea>
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<textarea style="background:#EEEEEE;"><mxGraphModel><root><mxCell id="0"/><mxCell id="1" parent="0"/><mxCell id="2" vertex="1" parent="1" value="Interval 1"><mxGeometry x="380" y="20" width="140" height="30" as="geometry"/></mxCell><mxCell id="3" vertex="1" parent="1" value="Interval 2"><mxGeometry x="200" y="80" width="380" height="30" as="geometry"/></mxCell><mxCell id="4" vertex="1" parent="1" value="Interval 3"><mxGeometry x="40" y="140" width="260" height="30" as="geometry"/></mxCell><mxCell id="5" vertex="1" parent="1" value="Interval 4"><mxGeometry x="120" y="200" width="240" height="30" as="geometry"/></mxCell><mxCell id="6" vertex="1" parent="1" value="Interval 5"><mxGeometry x="420" y="260" width="80" height="30" as="geometry"/></mxCell><mxCell id="7" edge="1" source="2" target="3" parent="1" value="Transfer1"><mxGeometry as="geometry"><Array as="points"><Object x="420" y="60"/></Array></mxGeometry></mxCell><mxCell id="8" edge="1" source="2" target="6" parent="1" value="Transfer2"><mxGeometry as="geometry" relative="1" y="-30"><Array as="points"><Object x="600" y="60"/></Array></mxGeometry></mxCell><mxCell id="9" edge="1" source="3" target="4" parent="1" value="Transfer3"><mxGeometry as="geometry"><Array as="points"><Object x="260" y="120"/></Array></mxGeometry></mxCell><mxCell id="10" edge="1" source="4" target="5" parent="1" value="Transfer4"><mxGeometry as="geometry"><Array as="points"><Object x="200" y="180"/></Array></mxGeometry></mxCell><mxCell id="11" edge="1" source="4" target="6" parent="1" value="Transfer5"><mxGeometry as="geometry" relative="1" y="-10"><Array as="points"><Object x="460" y="155"/></Array></mxGeometry></mxCell></root></mxGraphModel></textarea>
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2012-05-21 20:32:26 +00:00
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</body>
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</html>
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