68 lines
2.4 KiB
HTML
68 lines
2.4 KiB
HTML
<!DOCTYPE html>
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<html>
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<head>
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<meta name="viewport" content="width=device-width, initial-scale=1">
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<title>Balloon Links</title>
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<meta name="description" content="A demonstration of the BalloonLink extension." />
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<!-- Copyright 1998-2017 by Northwoods Software Corporation. -->
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<meta charset="UTF-8">
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<script src="../release/go.js"></script>
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<script src="../assets/js/goSamples.js"></script> <!-- this is only for the GoJS Samples framework -->
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<script src="BalloonLink.js"></script>
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<script id="code">
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function init() {
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if (window.goSamples) goSamples(); // init for these samples -- you don't need to call this
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var $ = go.GraphObject.make; // for conciseness in defining templates
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myDiagram = $(go.Diagram, "myDiagramDiv", // create a Diagram for the DIV HTML element
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{
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initialContentAlignment: go.Spot.Center, // center the content
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"undoManager.isEnabled": true // enable undo & redo
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});
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// define a simple Node template
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myDiagram.nodeTemplate =
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$(go.Node, "Auto", // the Shape will go around the TextBlock
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$(go.Shape, "Rectangle", { strokeWidth: 0 },
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// Shape.fill is bound to Node.data.color
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new go.Binding("fill", "color")),
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$(go.TextBlock,
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{ margin: 8 }, // some room around the text
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// TextBlock.text is bound to Node.data.key
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new go.Binding("text", "key"))
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);
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myDiagram.linkTemplate =
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$(BalloonLink,
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$(go.Shape,
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{ stroke: "limegreen", strokeWidth: 3, fill: "limegreen" }
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)
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);
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// create the model data that will be represented by Nodes and Links
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myDiagram.model = new go.GraphLinksModel(
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[
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{ key: "Alpha", color: "lightblue" },
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{ key: "Beta", color: "orange" }
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],
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[
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{ from: "Alpha", to: "Beta" }
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]);
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}
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</script>
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</head>
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<body onload="init()">
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<div id="sample">
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<div id="myDiagramDiv" style="border: solid 1px black; width:300px; height:300px"></div>
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<p>
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A <b>BalloonLink</b> is a custom <a>Link</a> that draws a "balloon" shape around the Link.fromNode.
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It will create a triangular shape with the base at the fromNode and the other point at the toNode.
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It is defined in its own file, as <a href="BalloonLink.js">BalloonLink.js</a>.
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</p>
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<p>
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Usage can also be seen in the <a href="../samples/comments.html">Comments</a> sample.
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</p>
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</div>
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</body>
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</html> |