gojs/extensionsTS/BalloonLinkScript.ts

/*
*  Copyright (C) 1998-2021 by Northwoods Software Corporation. All Rights Reserved.
*/

/*
* This is an extension and not part of the main GoJS library.
* Note that the API for this class may change with any version, even point releases.
* If you intend to use an extension in production, you should copy the code to your own source directory.
* Extensions can be found in the GoJS kit under the extensions or extensionsTS folders.
* See the Extensions intro page (https://gojs.net/latest/intro/extensions.html) for more information.
*/

import * as go from '../release/go.js';
import { BalloonLink } from './BalloonLink.js';

export function init() {
  if ((window as any).goSamples) (window as any).goSamples();  // init for these samples -- you don't need to call this

  const $ = go.GraphObject.make;  // for conciseness in defining templates

  const myDiagram = $(go.Diagram, 'myDiagramDiv',  // create a Diagram for the DIV HTML element
    {
      'undoManager.isEnabled': true  // enable undo & redo
    });

  // define a simple Node template
  myDiagram.nodeTemplate =
    $(go.Node, 'Auto',  // the Shape will go around the TextBlock
      $(go.Shape, 'Rectangle', { strokeWidth: 0 },
        // Shape.fill is bound to Node.data.color
        new go.Binding('fill', 'color')),
      $(go.TextBlock,
        { margin: 8 },  // some room around the text
        // TextBlock.text is bound to Node.data.key
        new go.Binding('text', 'key'))
    );

  myDiagram.linkTemplate =
    $(BalloonLink,
      $(go.Shape,
        { stroke: 'limegreen', strokeWidth: 3, fill: 'limegreen' })
    );
  // create the model data that will be represented by Nodes and Links
  myDiagram.model = new go.GraphLinksModel(
    [
      { key: 'Alpha', color: 'lightblue' },
      { key: 'Beta', color: 'orange' }
    ],
    [
      { from: 'Alpha', to: 'Beta' }
    ]);

  // Attach to the window for console manipulation
  (window as any).myDiagram = myDiagram;
}