125 lines
4.1 KiB
HTML
125 lines
4.1 KiB
HTML
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Copyright (c) 2006-2013, JGraph Ltd
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Anchors example for mxGraph. This example demonstrates defining
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fixed connection points for all shapes.
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-->
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<html>
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<head>
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<title>Anchors 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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// Overridden to define per-shape connection points
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mxGraph.prototype.getAllConnectionConstraints = function(terminal, source)
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{
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if (terminal != null && terminal.shape != null)
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{
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if (terminal.shape.stencil != null)
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{
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if (terminal.shape.stencil.constraints != null)
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{
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return terminal.shape.stencil.constraints;
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}
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}
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else if (terminal.shape.constraints != null)
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{
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return terminal.shape.constraints;
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}
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}
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return null;
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};
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// Defines the default constraints for all shapes
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mxShape.prototype.constraints = [new mxConnectionConstraint(new mxPoint(0.25, 0), true),
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new mxConnectionConstraint(new mxPoint(0.5, 0), true),
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new mxConnectionConstraint(new mxPoint(0.75, 0), true),
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new mxConnectionConstraint(new mxPoint(0, 0.25), true),
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new mxConnectionConstraint(new mxPoint(0, 0.5), true),
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new mxConnectionConstraint(new mxPoint(0, 0.75), true),
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new mxConnectionConstraint(new mxPoint(1, 0.25), true),
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new mxConnectionConstraint(new mxPoint(1, 0.5), true),
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new mxConnectionConstraint(new mxPoint(1, 0.75), true),
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new mxConnectionConstraint(new mxPoint(0.25, 1), true),
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new mxConnectionConstraint(new mxPoint(0.5, 1), true),
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new mxConnectionConstraint(new mxPoint(0.75, 1), true)];
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// Edges have no connection points
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mxPolyline.prototype.constraints = null;
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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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// Disables the built-in context menu
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mxEvent.disableContextMenu(container);
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// Creates the graph inside the given container
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var graph = new mxGraph(container);
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graph.setConnectable(true);
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// Enables connect preview for the default edge style
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graph.connectionHandler.createEdgeState = function(me)
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{
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var edge = graph.createEdge(null, null, null, null, null);
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return new mxCellState(this.graph.view, edge, this.graph.getCellStyle(edge));
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};
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// Specifies the default edge style
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graph.getStylesheet().getDefaultEdgeStyle()['edgeStyle'] = 'orthogonalEdgeStyle';
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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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// Adds cells to the model in a single step
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graph.getModel().beginUpdate();
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try
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{
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var v1 = graph.insertVertex(parent, null, 'Hello,', 20, 20, 80, 30);
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var v2 = graph.insertVertex(parent, null, 'World!', 200, 150, 80, 30);
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var e1 = graph.insertEdge(parent, null, '', 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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}
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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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