markgojs/extensionsTS/SectorReshapingScript.ts

Interactive diagrams, charts, and graphs, such as trees, flowcharts, orgcharts, UML, BPMN, or business diagrams

"use strict"
/*
*  Copyright (C) 1998-2019 by Northwoods Software Corporation. All Rights Reserved.
*/

import * as go from "../release/go";
import { SectorReshapingTool } from "./SectorReshapingTool";

export function init() {
	if (typeof (<any>window)["goSamples"] === 'function') (<any>window)["goSamples"]();  // init for these samples -- you don't need to call this

	const $ = go.GraphObject.make;

	let myDiagram =
		$(go.Diagram, "myDiagramDiv",
			{
        initialContentAlignment: go.Spot.Center,
			  "animationManager.isEnabled": false,
				"undoManager.isEnabled": true
			});

	// install the SectorReshapingTool as a mouse-down tool
	myDiagram.toolManager.mouseDownTools.add(new SectorReshapingTool());

	function makeSector(data: Object) {  // Geometry converter for the node's "LAMP" Shape
		var radius = SectorReshapingTool.prototype.getRadius(data);
		var angle = SectorReshapingTool.prototype.getAngle(data);
		var sweep = SectorReshapingTool.prototype.getSweep(data);
		var start = new go.Point(radius, 0).rotate(angle);
		// this is much more efficient than calling go.GraphObject.make:
		var geo = new go.Geometry()
			.add(new go.PathFigure(radius + start.x, radius + start.y)  // start point
				.add(new go.PathSegment(go.PathSegment.Arc,
					angle, sweep,  // angles
					radius, radius,  // center
					radius, radius))  // radius
				.add(new go.PathSegment(go.PathSegment.Line, radius, radius).close()))
			.add(new go.PathFigure(0, 0))  // make sure the Geometry always includes the whole circle
			.add(new go.PathFigure(2 * radius, 2 * radius));  // even if only a small sector is "lit"
		console.log(geo.toString());
		return geo;
	}

	myDiagram.nodeTemplate =
		$(go.Node, "Spot",
			{
				locationSpot: go.Spot.Center, locationObjectName: "LAMP",
				selectionObjectName: "LAMP", selectionAdorned: false
			},
			new go.Binding("location", "loc", go.Point.parse).makeTwoWay(go.Point.stringify),
			// selecting a Node brings it forward in the z-order
			new go.Binding("layerName", "isSelected", (s) => { return s ? "Foreground" : ""; }).ofObject(),
			$(go.Panel, "Spot",
				{ name: "LAMP" },
				$(go.Shape,  // arc
					{ fill: "yellow", stroke: "lightgray", strokeWidth: 0.5 },
					new go.Binding("geometry", "", makeSector)),
				$(go.Shape, "Circle",
					{ name: "SHAPE", width: 6, height: 6 })
			),
			$(go.TextBlock,
				{
					alignment: new go.Spot(0.5, 0.5, 0, 3), alignmentFocus: go.Spot.Top,
					stroke: "blue", background: "rgba(255,255,255,0.3)"
				},
				new go.Binding("alignment", "spot", go.Spot.parse).makeTwoWay(go.Spot.stringify),
				new go.Binding("text", "name"))
		);

	myDiagram.model = new go.GraphLinksModel([
		{ name: "Alpha", radius: 70, sweep: 120 },
		{ name: "Beta", radius: 70, sweep: 80, angle: 200 }
	]);

	myDiagram.commandHandler.selectAll();  // to show the tool handles
}