98 lines
3.7 KiB
HTML
98 lines
3.7 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>Realtime Drag Selecting Tool</title>
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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="RealtimeDragSelectingTool.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 =
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$(go.Diagram, "myDiagramDiv",
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{
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initialDocumentSpot: go.Spot.Center,
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initialViewportSpot: go.Spot.Center,
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// replace the standard DragSelectingTool with one that selects while dragging,
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// and also only requires overlapping bounds with the dragged box to be selected
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dragSelectingTool:
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$(RealtimeDragSelectingTool,
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{ isPartialInclusion: true, delay: 50 },
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{ box: $(go.Part, // replace the magenta box with a red one
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{ layerName: "Tool", selectable: false },
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$(go.Shape,
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{ name: "SHAPE", fill: "rgba(255,0,0,0.1)",
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stroke: "red", strokeWidth: 2 })) }
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),
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// Define the template for Nodes, just some text inside a colored rectangle
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nodeTemplate:
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$(go.Node, "Spot",
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{ width: 70, height: 20 },
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$(go.Shape, "Rectangle",
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new go.Binding("fill", "c")),
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$(go.TextBlock,
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{ margin: 2 },
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new go.Binding("text", "c"))),
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// Define the template for Links, just a simple line
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linkTemplate:
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$(go.Link,
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$(go.Shape, { stroke: "black" })),
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layout: $(go.TreeLayout)
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});
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myDiagram.model = loadTree();
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}
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function loadTree() {
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// create some tree data
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var total = 49;
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var treedata = [];
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for (var i = 0; i < total; i++) {
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// these property names are also specified when creating the TreeModel
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var d = {
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key: i, // this node data's key
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c: go.Brush.randomColor(), // the node's color
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parent: (i > 0 ? Math.floor(Math.random() * i / 2) : undefined) // the random parent's key
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};
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treedata.push(d);
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}
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return new go.TreeModel(treedata);
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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="background-color: white; border: solid 1px black; width: 100%;height: 600px"></div>
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<p>
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This sample demonstrates the RealtimeDragSelectingTool, which replaces the standard <a>DragSelectingTool</a>.
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Press in the background, wait briefly, and then drag to start selecting Nodes or Links that intersect with the box.
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You can press or release Control (Command on Mac) or Shift while dragging to see how the selection changes.
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</p>
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<p>
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Load it in your own app by including <a href="RealtimeDragSelectingTool.js">RealtimeDragSelectingTool.js</a>.
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Initialize your Diagram by setting <a>ToolManager.dragSelectingTool</a> to a new instance of this tool.
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For example:
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</p>
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<pre>
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myDiagram.toolManager.dragSelectingTool = new go.RealtimeDragSelectingTool();
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</pre>
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or
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<pre>
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$(go.Diagram, { . . .,
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"toolManager.dragSelectingTool": $(RealtimeDragSelectingTool, { isPartialInclusion: true }),
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. . . })
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</pre>
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</div>
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</body>
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</html>
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