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504 lines
25 KiB
504 lines
25 KiB
/*
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* Copyright (C) 1998-2019 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"], 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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var go = require("../release/go");
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/**
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* The GuidedDraggingTool class makes guidelines visible as the parts are dragged around a diagram
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* when the selected part is nearly aligned with another part.
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*
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* If you want to experiment with this extension, try the <a href="../../extensionsTS/GuidedDragging.html">Guided Dragging</a> sample.
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* @category Tool Extension
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*/
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var GuidedDraggingTool = /** @class */ (function (_super) {
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__extends(GuidedDraggingTool, _super);
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/**
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* Constructs a GuidedDraggingTool and sets up the temporary guideline parts.
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*/
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function GuidedDraggingTool() {
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var _this = _super.call(this) || this;
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// properties that the programmer can modify
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_this._guidelineSnapDistance = 6;
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_this._isGuidelineEnabled = true;
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_this._horizontalGuidelineColor = 'gray';
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_this._verticalGuidelineColor = 'gray';
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_this._centerGuidelineColor = 'gray';
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_this._guidelineWidth = 1;
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_this._searchDistance = 1000;
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_this._isGuidelineSnapEnabled = true;
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var partProperties = { layerName: 'Tool', isInDocumentBounds: false };
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var shapeProperties = { stroke: 'gray', isGeometryPositioned: true };
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var $ = go.GraphObject.make;
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// temporary parts for horizonal guidelines
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_this.guidelineHtop =
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$(go.Part, partProperties, $(go.Shape, shapeProperties, { geometryString: 'M0 0 100 0' }));
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_this.guidelineHbottom =
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$(go.Part, partProperties, $(go.Shape, shapeProperties, { geometryString: 'M0 0 100 0' }));
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_this.guidelineHcenter =
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$(go.Part, partProperties, $(go.Shape, shapeProperties, { geometryString: 'M0 0 100 0' }));
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// temporary parts for vertical guidelines
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_this.guidelineVleft =
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$(go.Part, partProperties, $(go.Shape, shapeProperties, { geometryString: 'M0 0 0 100' }));
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_this.guidelineVright =
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$(go.Part, partProperties, $(go.Shape, shapeProperties, { geometryString: 'M0 0 0 100' }));
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_this.guidelineVcenter =
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$(go.Part, partProperties, $(go.Shape, shapeProperties, { geometryString: 'M0 0 0 100' }));
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return _this;
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}
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Object.defineProperty(GuidedDraggingTool.prototype, "guidelineSnapDistance", {
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/**
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* Gets or sets the margin of error for which guidelines show up.
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*
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* The default value is 6.
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* Guidelines will show up when the aligned nods are ± 6px away from perfect alignment.
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*/
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get: function () { return this._guidelineSnapDistance; },
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set: function (val) {
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if (typeof val !== 'number' || isNaN(val) || val < 0)
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throw new Error('new value for GuideddraggingTool.guidelineSnapDistance must be a non-negative number');
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if (this._guidelineSnapDistance !== val) {
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this._guidelineSnapDistance = val;
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}
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},
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enumerable: true,
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configurable: true
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});
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Object.defineProperty(GuidedDraggingTool.prototype, "isGuidelineEnabled", {
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/**
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* Gets or sets whether the guidelines are enabled or disable.
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*
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* The default value is true.
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*/
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get: function () { return this._isGuidelineEnabled; },
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set: function (val) {
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if (typeof val !== 'boolean')
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throw new Error('new value for GuidedDraggingTool.isGuidelineEnabled must be a boolean value.');
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if (this._isGuidelineEnabled !== val) {
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this._isGuidelineEnabled = val;
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}
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},
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enumerable: true,
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configurable: true
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});
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Object.defineProperty(GuidedDraggingTool.prototype, "horizontalGuidelineColor", {
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/**
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* Gets or sets the color of horizontal guidelines.
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*
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* The default value is "gray".
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*/
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get: function () { return this._horizontalGuidelineColor; },
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set: function (val) {
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if (this._horizontalGuidelineColor !== val) {
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this._horizontalGuidelineColor = val;
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this.guidelineHbottom.elements.first().stroke = this._horizontalGuidelineColor;
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this.guidelineHtop.elements.first().stroke = this._horizontalGuidelineColor;
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}
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},
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enumerable: true,
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configurable: true
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});
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Object.defineProperty(GuidedDraggingTool.prototype, "verticalGuidelineColor", {
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/**
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* Gets or sets the color of vertical guidelines.
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*
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* The default value is "gray".
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*/
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get: function () { return this._verticalGuidelineColor; },
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set: function (val) {
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if (this._verticalGuidelineColor !== val) {
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this._verticalGuidelineColor = val;
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this.guidelineVleft.elements.first().stroke = this._verticalGuidelineColor;
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this.guidelineVright.elements.first().stroke = this._verticalGuidelineColor;
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}
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},
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enumerable: true,
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configurable: true
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});
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Object.defineProperty(GuidedDraggingTool.prototype, "centerGuidelineColor", {
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/**
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* Gets or sets the color of center guidelines.
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*
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* The default value is "gray".
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*/
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get: function () { return this._centerGuidelineColor; },
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set: function (val) {
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if (this._centerGuidelineColor !== val) {
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this._centerGuidelineColor = val;
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this.guidelineVcenter.elements.first().stroke = this._centerGuidelineColor;
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this.guidelineHcenter.elements.first().stroke = this._centerGuidelineColor;
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}
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},
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enumerable: true,
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configurable: true
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});
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Object.defineProperty(GuidedDraggingTool.prototype, "guidelineWidth", {
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/**
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* Gets or sets the width guidelines.
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*
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* The default value is 1.
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*/
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get: function () { return this._guidelineWidth; },
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set: function (val) {
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if (typeof val !== 'number' || isNaN(val) || val < 0)
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throw new Error('New value for GuidedDraggingTool.guidelineWidth must be a non-negative number.');
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if (this._guidelineWidth !== val) {
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this._guidelineWidth = val;
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this.guidelineVcenter.elements.first().strokeWidth = val;
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this.guidelineHcenter.elements.first().strokeWidth = val;
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this.guidelineVleft.elements.first().strokeWidth = val;
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this.guidelineVright.elements.first().strokeWidth = val;
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this.guidelineHbottom.elements.first().strokeWidth = val;
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this.guidelineHtop.elements.first().strokeWidth = val;
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}
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},
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enumerable: true,
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configurable: true
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});
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Object.defineProperty(GuidedDraggingTool.prototype, "searchDistance", {
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/**
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* Gets or sets the distance around the selected part to search for aligned parts.
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*
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* The default value is 1000.
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* Set this to Infinity if you want to search the entire diagram no matter how far away.
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*/
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get: function () { return this._searchDistance; },
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set: function (val) {
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if (typeof val !== 'number' || isNaN(val) || val <= 0)
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throw new Error('new value for GuidedDraggingTool.searchDistance must be a positive number.');
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if (this._searchDistance !== val) {
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this._searchDistance = val;
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}
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},
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enumerable: true,
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configurable: true
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});
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Object.defineProperty(GuidedDraggingTool.prototype, "isGuidelineSnapEnabled", {
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/**
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* Gets or sets whether snapping to guidelines is enabled.
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*
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* The default value is true.
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*/
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get: function () { return this._isGuidelineSnapEnabled; },
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set: function (val) {
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if (typeof val !== 'boolean')
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throw new Error('new value for GuidedDraggingTool.isGuidelineSnapEnabled must be a boolean.');
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if (this._isGuidelineSnapEnabled !== val) {
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this._isGuidelineSnapEnabled = val;
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}
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},
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enumerable: true,
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configurable: true
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});
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/**
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* Removes all of the guidelines from the grid.
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*/
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GuidedDraggingTool.prototype.clearGuidelines = function () {
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this.diagram.remove(this.guidelineHbottom);
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this.diagram.remove(this.guidelineHcenter);
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this.diagram.remove(this.guidelineHtop);
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this.diagram.remove(this.guidelineVleft);
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this.diagram.remove(this.guidelineVright);
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this.diagram.remove(this.guidelineVcenter);
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};
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/**
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* Calls the base method and removes the guidelines from the graph.
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*/
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GuidedDraggingTool.prototype.doDeactivate = function () {
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_super.prototype.doDeactivate.call(this);
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// clear any guidelines when dragging is done
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this.clearGuidelines();
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};
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/**
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* Shows vertical and horizontal guidelines for the dragged part.
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*/
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GuidedDraggingTool.prototype.doDragOver = function (pt, obj) {
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// clear all existing guidelines in case either show... method decides to show a guideline
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this.clearGuidelines();
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// gets the selected part
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var draggingParts = this.copiedParts || this.draggedParts;
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if (draggingParts === null)
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return;
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var partItr = draggingParts.iterator;
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if (partItr.next()) {
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var part = partItr.key;
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this.showHorizontalMatches(part, this.isGuidelineEnabled, false);
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this.showVerticalMatches(part, this.isGuidelineEnabled, false);
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}
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};
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/**
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* On a mouse-up, snaps the selected part to the nearest guideline.
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* If not snapping, the part remains at its position.
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*/
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GuidedDraggingTool.prototype.doDropOnto = function (pt, obj) {
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this.clearGuidelines();
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// gets the selected (perhaps copied) Part
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var draggingParts = this.copiedParts || this.draggedParts;
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if (draggingParts === null)
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return;
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var partItr = draggingParts.iterator;
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if (partItr.next()) {
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var part = partItr.key;
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// snaps only when the mouse is released without shift modifier
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var e = this.diagram.lastInput;
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var snap = this.isGuidelineSnapEnabled && !e.shift;
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this.showHorizontalMatches(part, false, snap); // false means don't show guidelines
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this.showVerticalMatches(part, false, snap);
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}
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};
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/**
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* When nodes are shifted due to being guided upon a drop, make sure all connected link routes are invalidated,
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* since the node is likely to have moved a different amount than all its connected links in the regular
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* operation of the DraggingTool.
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*/
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GuidedDraggingTool.prototype.invalidateLinks = function (node) {
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if (node instanceof go.Node)
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node.invalidateConnectedLinks();
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};
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/**
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* This finds parts that are aligned near the selected part along horizontal lines. It compares the selected
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* part to all parts within a rectangle approximately twice the {@link #searchDistance} wide.
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* The guidelines appear when a part is aligned within a margin-of-error equal to {@link #guidelineSnapDistance}.
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* @param {Node} part
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* @param {boolean} guideline if true, show guideline
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* @param {boolean} snap if true, snap the part to where the guideline would be
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*/
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GuidedDraggingTool.prototype.showHorizontalMatches = function (part, guideline, snap) {
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var objBounds = part.locationObject.getDocumentBounds();
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var p0 = objBounds.y;
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var p1 = objBounds.y + objBounds.height / 2;
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var p2 = objBounds.y + objBounds.height;
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var marginOfError = this.guidelineSnapDistance;
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var distance = this.searchDistance;
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// compares with parts within narrow vertical area
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var area = objBounds.copy();
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area.inflate(distance, marginOfError + 1);
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var otherObjs = this.diagram.findObjectsIn(area, function (obj) { return obj.part; }, function (p) { return p instanceof go.Part && !p.isSelected && !(p instanceof go.Link) && p.isTopLevel && p.layer !== null && !p.layer.isTemporary; }, true);
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var bestDiff = marginOfError;
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var bestObj = null; // TS 2.6 won't let this be go.Part | null
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var bestSpot = go.Spot.Default;
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var bestOtherSpot = go.Spot.Default;
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// horizontal line -- comparing y-values
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otherObjs.each(function (other) {
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if (other === part)
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return; // ignore itself
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var otherBounds = other.locationObject.getDocumentBounds();
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var q0 = otherBounds.y;
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var q1 = otherBounds.y + otherBounds.height / 2;
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var q2 = otherBounds.y + otherBounds.height;
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// compare center with center of OTHER part
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if (Math.abs(p1 - q1) < bestDiff) {
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bestDiff = Math.abs(p1 - q1);
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bestObj = other;
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bestSpot = go.Spot.Center;
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bestOtherSpot = go.Spot.Center;
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}
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// compare top side with top and bottom sides of OTHER part
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if (Math.abs(p0 - q0) < bestDiff) {
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bestDiff = Math.abs(p0 - q0);
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bestObj = other;
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bestSpot = go.Spot.Top;
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bestOtherSpot = go.Spot.Top;
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}
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else if (Math.abs(p0 - q2) < bestDiff) {
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bestDiff = Math.abs(p0 - q2);
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bestObj = other;
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bestSpot = go.Spot.Top;
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bestOtherSpot = go.Spot.Bottom;
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}
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// compare bottom side with top and bottom sides of OTHER part
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if (Math.abs(p2 - q0) < bestDiff) {
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bestDiff = Math.abs(p2 - q0);
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bestObj = other;
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bestSpot = go.Spot.Bottom;
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bestOtherSpot = go.Spot.Top;
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}
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else if (Math.abs(p2 - q2) < bestDiff) {
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bestDiff = Math.abs(p2 - q2);
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bestObj = other;
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bestSpot = go.Spot.Bottom;
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bestOtherSpot = go.Spot.Bottom;
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}
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});
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if (bestObj !== null) {
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var offsetX = objBounds.x - part.actualBounds.x;
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var offsetY = objBounds.y - part.actualBounds.y;
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var bestBounds = bestObj.locationObject.getDocumentBounds();
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// line extends from x0 to x2
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var x0 = Math.min(objBounds.x, bestBounds.x) - 10;
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var x2 = Math.max(objBounds.x + objBounds.width, bestBounds.x + bestBounds.width) + 10;
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// find bestObj's desired Y
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var bestPoint = new go.Point().setRectSpot(bestBounds, bestOtherSpot);
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if (bestSpot === go.Spot.Center) {
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if (snap) {
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// call Part.move in order to automatically move member Parts of Groups
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part.move(new go.Point(objBounds.x - offsetX, bestPoint.y - objBounds.height / 2 - offsetY));
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this.invalidateLinks(part);
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}
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if (guideline) {
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this.guidelineHcenter.position = new go.Point(x0, bestPoint.y);
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this.guidelineHcenter.elt(0).width = x2 - x0;
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this.diagram.add(this.guidelineHcenter);
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}
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}
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else if (bestSpot === go.Spot.Top) {
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if (snap) {
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part.move(new go.Point(objBounds.x - offsetX, bestPoint.y - offsetY));
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this.invalidateLinks(part);
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}
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if (guideline) {
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this.guidelineHtop.position = new go.Point(x0, bestPoint.y);
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this.guidelineHtop.elt(0).width = x2 - x0;
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this.diagram.add(this.guidelineHtop);
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}
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}
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else if (bestSpot === go.Spot.Bottom) {
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if (snap) {
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part.move(new go.Point(objBounds.x - offsetX, bestPoint.y - objBounds.height - offsetY));
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this.invalidateLinks(part);
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}
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if (guideline) {
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this.guidelineHbottom.position = new go.Point(x0, bestPoint.y);
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this.guidelineHbottom.elt(0).width = x2 - x0;
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this.diagram.add(this.guidelineHbottom);
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}
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}
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}
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};
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/**
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* This finds parts that are aligned near the selected part along vertical lines. It compares the selected
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* part to all parts within a rectangle approximately twice the {@link #searchDistance} tall.
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* The guidelines appear when a part is aligned within a margin-of-error equal to {@link #guidelineSnapDistance}.
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* @param {Part} part
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* @param {boolean} guideline if true, show guideline
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* @param {boolean} snap if true, don't show guidelines but just snap the part to where the guideline would be
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*/
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GuidedDraggingTool.prototype.showVerticalMatches = function (part, guideline, snap) {
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var objBounds = part.locationObject.getDocumentBounds();
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var p0 = objBounds.x;
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var p1 = objBounds.x + objBounds.width / 2;
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var p2 = objBounds.x + objBounds.width;
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var marginOfError = this.guidelineSnapDistance;
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var distance = this.searchDistance;
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// compares with parts within narrow vertical area
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var area = objBounds.copy();
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area.inflate(marginOfError + 1, distance);
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var otherObjs = this.diagram.findObjectsIn(area, function (obj) { return obj.part; }, function (p) { return p instanceof go.Part && !p.isSelected && !(p instanceof go.Link) && p.isTopLevel && p.layer !== null && !p.layer.isTemporary; }, true);
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var bestDiff = marginOfError;
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var bestObj = null; // TS 2.6 won't let this be go.Part | null
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var bestSpot = go.Spot.Default;
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var bestOtherSpot = go.Spot.Default;
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// vertical line -- comparing x-values
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otherObjs.each(function (other) {
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if (other === part)
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return; // ignore itself
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var otherBounds = other.locationObject.getDocumentBounds();
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var q0 = otherBounds.x;
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var q1 = otherBounds.x + otherBounds.width / 2;
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var q2 = otherBounds.x + otherBounds.width;
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// compare center with center of OTHER part
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if (Math.abs(p1 - q1) < bestDiff) {
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bestDiff = Math.abs(p1 - q1);
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bestObj = other;
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bestSpot = go.Spot.Center;
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bestOtherSpot = go.Spot.Center;
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}
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// compare left side with left and right sides of OTHER part
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if (Math.abs(p0 - q0) < bestDiff) {
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bestDiff = Math.abs(p0 - q0);
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bestObj = other;
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bestSpot = go.Spot.Left;
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bestOtherSpot = go.Spot.Left;
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}
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else if (Math.abs(p0 - q2) < bestDiff) {
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bestDiff = Math.abs(p0 - q2);
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bestObj = other;
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bestSpot = go.Spot.Left;
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bestOtherSpot = go.Spot.Right;
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}
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// compare right side with left and right sides of OTHER part
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if (Math.abs(p2 - q0) < bestDiff) {
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bestDiff = Math.abs(p2 - q0);
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bestObj = other;
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|
bestSpot = go.Spot.Right;
|
|
bestOtherSpot = go.Spot.Left;
|
|
}
|
|
else if (Math.abs(p2 - q2) < bestDiff) {
|
|
bestDiff = Math.abs(p2 - q2);
|
|
bestObj = other;
|
|
bestSpot = go.Spot.Right;
|
|
bestOtherSpot = go.Spot.Right;
|
|
}
|
|
});
|
|
if (bestObj !== null) {
|
|
var offsetX = objBounds.x - part.actualBounds.x;
|
|
var offsetY = objBounds.y - part.actualBounds.y;
|
|
var bestBounds = bestObj.locationObject.getDocumentBounds();
|
|
// line extends from y0 to y2
|
|
var y0 = Math.min(objBounds.y, bestBounds.y) - 10;
|
|
var y2 = Math.max(objBounds.y + objBounds.height, bestBounds.y + bestBounds.height) + 10;
|
|
// find bestObj's desired X
|
|
var bestPoint = new go.Point().setRectSpot(bestBounds, bestOtherSpot);
|
|
if (bestSpot === go.Spot.Center) {
|
|
if (snap) {
|
|
// call Part.move in order to automatically move member Parts of Groups
|
|
part.move(new go.Point(bestPoint.x - objBounds.width / 2 - offsetX, objBounds.y - offsetY));
|
|
this.invalidateLinks(part);
|
|
}
|
|
if (guideline) {
|
|
this.guidelineVcenter.position = new go.Point(bestPoint.x, y0);
|
|
this.guidelineVcenter.elt(0).height = y2 - y0;
|
|
this.diagram.add(this.guidelineVcenter);
|
|
}
|
|
}
|
|
else if (bestSpot === go.Spot.Left) {
|
|
if (snap) {
|
|
part.move(new go.Point(bestPoint.x - offsetX, objBounds.y - offsetY));
|
|
this.invalidateLinks(part);
|
|
}
|
|
if (guideline) {
|
|
this.guidelineVleft.position = new go.Point(bestPoint.x, y0);
|
|
this.guidelineVleft.elt(0).height = y2 - y0;
|
|
this.diagram.add(this.guidelineVleft);
|
|
}
|
|
}
|
|
else if (bestSpot === go.Spot.Right) {
|
|
if (snap) {
|
|
part.move(new go.Point(bestPoint.x - objBounds.width - offsetX, objBounds.y - offsetY));
|
|
this.invalidateLinks(part);
|
|
}
|
|
if (guideline) {
|
|
this.guidelineVright.position = new go.Point(bestPoint.x, y0);
|
|
this.guidelineVright.elt(0).height = y2 - y0;
|
|
this.diagram.add(this.guidelineVright);
|
|
}
|
|
}
|
|
}
|
|
};
|
|
return GuidedDraggingTool;
|
|
}(go.DraggingTool));
|
|
exports.GuidedDraggingTool = GuidedDraggingTool;
|
|
});
|