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88 lines
3.7 KiB
HTML
Executable File
88 lines
3.7 KiB
HTML
Executable File
<!DOCTYPE html>
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<html>
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<head>
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<title>Realtime Drag Selecting Tool</title>
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<!-- Copyright 1998-2020 by Northwoods Software Corporation. -->
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<meta name="description" content="TypeScript: This customized DragSelectingTool selects and deselects parts continuously while the user is dragging a box, rather than when the tool finishes." />
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<meta name="viewport" content="width=device-width, initial-scale=1">
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<script src="../assets/js/goSamples.js"></script> <!-- this is only for the GoJS Samples framework -->
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</head>
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<body>
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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>. Press
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in the background, wait briefly, and then drag to start selecting Nodes or Links that intersect with the box. You can
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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.ts">RealtimeDragSelectingTool.ts</a>. Initialize
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your Diagram by setting <a>ToolManager.dragSelectingTool</a> to a new instance of this tool. For example:
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</p>
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<pre>
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myDiagram.toolManager.dragSelectingTool = new 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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<script type="module" id="code">
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import * as go from "../release/go-module.js";
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import { RealtimeDragSelectingTool } from './RealtimeDragSelectingTool.js';
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if (window.goSamples) goSamples(); // init for the samples -- you don't need to call this
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const $ = go.GraphObject.make; // for conciseness in defining templates
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const myDiagram = $(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: $(RealtimeDragSelectingTool,
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{
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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 }, $(go.Shape, {
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name: 'SHAPE', fill: 'rgba(255,0,0,0.1)',
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stroke: 'red', strokeWidth: 2
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}))
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}),
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// Define the template for Nodes, just some text inside a colored rectangle
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nodeTemplate:
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$(go.Node, 'Spot',
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{ width: 70, height: 20 },
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$(go.Shape, 'Rectangle', new go.Binding('fill', 'c')),
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$(go.TextBlock, { margin: 2 }, new go.Binding('text', 'c'))
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),
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// Define the template for Links, just a simple line
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linkTemplate: $(go.Link, $(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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function loadTree() {
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// create some tree data
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const total = 49;
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const treedata = [];
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for (let i = 0; i < total; i++) {
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// these property names are also specified when creating the TreeModel
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const d = {
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key: i,
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c: go.Brush.randomColor(),
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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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window.myDiagram = myDiagram; // Attach to the window for console debugging
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</script>
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</body>
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</html> |