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67 lines
3.1 KiB
HTML
Executable File
67 lines
3.1 KiB
HTML
Executable File
<!DOCTYPE html>
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<html>
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<head>
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<title>Link Shifting Tool</title>
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<!-- Copyright 1998-2020 by Northwoods Software Corporation. -->
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<meta name="description" content="TypeScript: Allow the user to shift the end of a link that is connected with a rectangular node." />
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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="border: solid 1px black; width:100%; height:600px"></div>
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<p>
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This sample demonstrates the LinkShiftingTool, which is an extra tool that can be installed in the ToolManager to allow users
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to shift the end point of the link to be anywhere along the sides of the port with which it remains connected.
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</p>
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<p>
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This only looks good for ports that occupy the whole of a rectangular node. If you want to restrict the user's permitted
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sides, you can adapt the
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<code>LinkShiftingTool.doReshape</code> method to do what you want.
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</p>
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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 { LinkShiftingTool } from './LinkShiftingTool.js';
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if (window.goSamples) window.goSamples(); // init for these samples -- you don't need to call this
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const $ = go.GraphObject.make;
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const myDiagram = $(go.Diagram, 'myDiagramDiv', {
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'undoManager.isEnabled': true
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});
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myDiagram.toolManager.mouseDownTools.add($(LinkShiftingTool));
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myDiagram.nodeTemplate =
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$(go.Node, 'Auto', {
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fromSpot: go.Spot.AllSides, toSpot: go.Spot.AllSides,
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fromLinkable: true, toLinkable: true,
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locationSpot: go.Spot.Center
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}, new go.Binding('location', 'location', go.Point.parse).makeTwoWay(go.Point.stringify), $(go.Shape, { fill: 'lightgray' }), $(go.TextBlock, { margin: 10 }, { fromLinkable: false, toLinkable: false }, new go.Binding('text', 'key')));
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myDiagram.linkTemplate =
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$(go.Link, {
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reshapable: true, resegmentable: true,
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relinkableFrom: true, relinkableTo: true,
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adjusting: go.Link.Stretch
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},
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// remember the (potentially) user-modified route
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new go.Binding('points').makeTwoWay(),
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// remember any spots modified by LinkShiftingTool
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new go.Binding('fromSpot', 'fromSpot', go.Spot.parse).makeTwoWay(go.Spot.stringify), new go.Binding('toSpot', 'toSpot', go.Spot.parse).makeTwoWay(go.Spot.stringify), $(go.Shape), $(go.Shape, { toArrow: 'Standard' }));
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myDiagram.model = new go.GraphLinksModel([
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{ key: 'Alpha', location: '0 0' },
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{ key: 'Beta', location: '0 100' }
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], [
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{ from: 'Alpha', to: 'Beta' }
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]);
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myDiagram.addDiagramListener('InitialLayoutCompleted', function (e) {
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// select the Link in order to show its two additional Adornments, for shifting the ends
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const firstlink = myDiagram.links.first();
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if (firstlink !== null)
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firstlink.isSelected = true;
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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> |