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301 lines
13 KiB
JavaScript
Executable File
301 lines
13 KiB
JavaScript
Executable File
/*
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* Copyright (C) 1998-2020 by Northwoods Software Corporation. All Rights Reserved.
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*/
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var __extends = (this && this.__extends) || (function () {
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var extendStatics = function (d, b) {
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extendStatics = Object.setPrototypeOf ||
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({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
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function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
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return extendStatics(d, b);
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};
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return function (d, b) {
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extendStatics(d, b);
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function __() { this.constructor = d; }
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d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
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};
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})();
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(function (factory) {
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if (typeof module === "object" && typeof module.exports === "object") {
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var v = factory(require, exports);
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if (v !== undefined) module.exports = v;
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}
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else if (typeof define === "function" && define.amd) {
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define(["require", "exports", "../release/go.js"], factory);
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}
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})(function (require, exports) {
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"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.RescalingTool = void 0;
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var go = require("../release/go.js");
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// A custom Tool to change the scale of an object in a Part.
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/*
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* This is an extension and not part of the main GoJS library.
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* Note that the API for this class may change with any version, even point releases.
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* If you intend to use an extension in production, you should copy the code to your own source directory.
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* Extensions can be found in the GoJS kit under the extensions or extensionsTS folders.
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* See the Extensions intro page (https://gojs.net/latest/intro/extensions.html) for more information.
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*/
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/**
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* A custom tool for rescaling an object by modifying its {@link GraphObject#scale} property.
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*
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* Install the RescalingTool as a mouse-down tool by calling:
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* myDiagram.toolManager.mouseDownTools.add(new RescalingTool());
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*
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* Normally it would not make sense for the same object to be both resizable and rescalable.
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*
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* Note that there is no <code>Part.rescaleObjectName</code> property and there is no <code>Part.rescalable</code> property.
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* So although you cannot customize any Node to affect this tool, you can set
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* <a>RescalingTool.rescaleObjectName</a> and set <a>RescalingTool.isEnabled</a> to control
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* whether objects are rescalable and when.
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*
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* If you want to experiment with this extension, try the <a href="../../extensionsTS/Rescaling.html">Rescaling</a> sample.
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* @category Tool Extension
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*/
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var RescalingTool = /** @class */ (function (_super) {
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__extends(RescalingTool, _super);
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function RescalingTool() {
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var _this = _super.call(this) || this;
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_this._rescaleObjectName = "";
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// internal state
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_this._adornedObject = null;
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_this._handle = null;
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_this.originalPoint = new go.Point();
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_this.originalTopLeft = new go.Point();
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_this.originalScale = 1.0;
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_this.name = "Rescaling";
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var h = new go.Shape();
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h.desiredSize = new go.Size(8, 8);
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h.fill = "lightblue";
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h.stroke = "dodgerblue";
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h.strokeWidth = 1;
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h.cursor = "nwse-resize";
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_this._handleArchetype = h;
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return _this;
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}
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Object.defineProperty(RescalingTool.prototype, "adornedObject", {
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/**
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* Gets the {@link GraphObject} that is being rescaled.
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* This may be the same object as the selected {@link Part} or it may be contained within that Part.
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*
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* This property is also settable, but should only be set when overriding functions
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* in RescalingTool, and not during normal operation.
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*/
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get: function () { return this._adornedObject; },
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set: function (val) { this._adornedObject = val; },
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enumerable: false,
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configurable: true
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});
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Object.defineProperty(RescalingTool.prototype, "handleArchetype", {
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/**
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* Gets or sets a small GraphObject that is copied as a rescale handle for the selected part.
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* By default this is a {@link Shape} that is a small blue square.
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* Setting this property does not raise any events.
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*
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* Here is an example of changing the default handle to be green "X":
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* ```js
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* tool.handleArchetype =
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* $(go.Shape, "XLine",
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* { width: 8, height: 8, stroke: "green", fill: "transparent" });
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* ```
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*/
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get: function () { return this._handleArchetype; },
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set: function (val) { this._handleArchetype = val; },
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enumerable: false,
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configurable: true
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});
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Object.defineProperty(RescalingTool.prototype, "handle", {
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/**
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* This property returns the {@link GraphObject} that is the tool handle being dragged by the user.
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* This will be contained by an {@link Adornment} whose category is "RescalingTool".
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* Its {@link Adornment#adornedObject} is the same as the {@link #adornedObject}.
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*
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* This property is also settable, but should only be set either within an override of {@link #doActivate}
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* or prior to calling {@link #doActivate}.
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*/
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get: function () { return this._handle; },
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set: function (val) { this._handle = val; },
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enumerable: false,
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configurable: true
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});
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Object.defineProperty(RescalingTool.prototype, "rescaleObjectName", {
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/**
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* This property returns the name of the GraphObject that identifies the object to be rescaled by this tool.
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*
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* The default value is the empty string, resulting in the whole Node being rescaled.
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* This property is used by findRescaleObject when calling {@link Panel#findObject}.
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*/
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get: function () { return this._rescaleObjectName; },
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set: function (val) { this._rescaleObjectName = val; },
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enumerable: false,
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configurable: true
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});
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/**
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* @this {RescalingTool}
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* @param {Part} part
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*/
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RescalingTool.prototype.updateAdornments = function (part) {
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if (part === null || part instanceof go.Link)
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return;
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if (part.isSelected && !this.diagram.isReadOnly) {
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var rescaleObj = this.findRescaleObject(part);
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if (rescaleObj !== null && part.actualBounds.isReal() && part.isVisible() &&
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rescaleObj.actualBounds.isReal() && rescaleObj.isVisibleObject()) {
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var adornment = part.findAdornment(this.name);
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if (adornment === null || adornment.adornedObject !== rescaleObj) {
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adornment = this.makeAdornment(rescaleObj);
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}
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if (adornment !== null) {
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adornment.location = rescaleObj.getDocumentPoint(go.Spot.BottomRight);
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part.addAdornment(this.name, adornment);
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return;
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}
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}
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}
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part.removeAdornment(this.name);
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};
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/**
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* @this {RescalingTool}
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* @param {GraphObject} rescaleObj
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* @return {Adornment}
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*/
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RescalingTool.prototype.makeAdornment = function (rescaleObj) {
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var adornment = new go.Adornment();
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adornment.type = go.Panel.Position;
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adornment.locationSpot = go.Spot.Center;
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adornment.add(this._handleArchetype.copy());
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adornment.adornedObject = rescaleObj;
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return adornment;
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};
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/**
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* Return the GraphObject to be rescaled by the user.
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* @this {RescalingTool}
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* @return {GraphObject}
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*/
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RescalingTool.prototype.findRescaleObject = function (part) {
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var obj = part.findObject(this.rescaleObjectName);
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if (obj)
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return obj;
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return part;
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};
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/**
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* This tool can start running if the mouse-down happens on a "Rescaling" handle.
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* @this {RescalingTool}
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* @return {boolean}
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*/
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RescalingTool.prototype.canStart = function () {
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var diagram = this.diagram;
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if (diagram === null || diagram.isReadOnly)
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return false;
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if (!diagram.lastInput.left)
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return false;
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var h = this.findToolHandleAt(diagram.firstInput.documentPoint, this.name);
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return (h !== null);
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};
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/**
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* Activating this tool remembers the {@link #handle} that was dragged,
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* the {@link #adornedObject} that is being rescaled,
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* starts a transaction, and captures the mouse.
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* @this {RescalingTool}
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*/
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RescalingTool.prototype.doActivate = function () {
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var diagram = this.diagram;
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if (diagram === null)
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return;
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this._handle = this.findToolHandleAt(diagram.firstInput.documentPoint, this.name);
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if (this._handle === null)
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return;
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var ad = this._handle.part;
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this._adornedObject = (ad instanceof go.Adornment) ? ad.adornedObject : null;
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if (!this._adornedObject)
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return;
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this.originalPoint = this._handle.getDocumentPoint(go.Spot.Center);
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this.originalTopLeft = this._adornedObject.getDocumentPoint(go.Spot.TopLeft);
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this.originalScale = this._adornedObject.scale;
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diagram.isMouseCaptured = true;
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diagram.delaysLayout = true;
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this.startTransaction(this.name);
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this.isActive = true;
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};
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/**
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* Stop the current transaction, forget the {@link #handle} and {@link #adornedObject}, and release the mouse.
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* @this {RescalingTool}
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*/
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RescalingTool.prototype.doDeactivate = function () {
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var diagram = this.diagram;
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if (diagram === null)
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return;
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this.stopTransaction();
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this._handle = null;
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this._adornedObject = null;
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diagram.isMouseCaptured = false;
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this.isActive = false;
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};
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;
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/**
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* Restore the original {@link GraphObject#scale} of the adorned object.
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* @this {RescalingTool}
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*/
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RescalingTool.prototype.doCancel = function () {
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var diagram = this.diagram;
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if (diagram !== null)
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diagram.delaysLayout = false;
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this.scale(this.originalScale);
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this.stopTool();
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};
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/**
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* Call {@link #scale} with a new scale determined by the current mouse point.
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* This determines the new scale by calling {@link #computeScale}.
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* @this {RescalingTool}
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*/
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RescalingTool.prototype.doMouseMove = function () {
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var diagram = this.diagram;
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if (this.isActive && diagram !== null) {
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var newScale = this.computeScale(diagram.lastInput.documentPoint);
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this.scale(newScale);
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}
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};
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/**
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* Call {@link #scale} with a new scale determined by the most recent mouse point,
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* and commit the transaction.
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* @this {RescalingTool}
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*/
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RescalingTool.prototype.doMouseUp = function () {
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var diagram = this.diagram;
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if (this.isActive && diagram !== null) {
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diagram.delaysLayout = false;
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var newScale = this.computeScale(diagram.lastInput.documentPoint);
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this.scale(newScale);
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this.transactionResult = this.name;
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}
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this.stopTool();
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};
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/**
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* Set the {@link GraphObject#scale} of the {@link #findRescaleObject}.
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* @this {RescalingTool}
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* @param {number} newScale
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*/
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RescalingTool.prototype.scale = function (newScale) {
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if (this._adornedObject !== null) {
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this._adornedObject.scale = newScale;
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}
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};
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/**
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* Compute the new scale given a point.
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*
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* This method is called by both {@link #doMouseMove} and {@link #doMouseUp}.
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* This method may be overridden.
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* Please read the Introduction page on <a href="../../intro/extensions.html">Extensions</a> for how to override methods and how to call this base method.
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* @this {RescalingTool}
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* @param {Point} newPoint in document coordinates
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*/
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RescalingTool.prototype.computeScale = function (newPoint) {
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var scale = this.originalScale;
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var origdist = Math.sqrt(this.originalPoint.distanceSquaredPoint(this.originalTopLeft));
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var newdist = Math.sqrt(newPoint.distanceSquaredPoint(this.originalTopLeft));
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return scale * (newdist / origdist);
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};
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return RescalingTool;
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}(go.Tool));
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exports.RescalingTool = RescalingTool;
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});
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