gojs
Version:
Interactive diagrams, charts, and graphs, such as trees, flowcharts, orgcharts, UML, BPMN, or business diagrams
399 lines (398 loc) • 18.8 kB
JavaScript
/*
* Copyright (C) 1998-2020 by Northwoods Software Corporation. All Rights Reserved.
*/
var __extends = (this && this.__extends) || (function () {
var extendStatics = function (d, b) {
extendStatics = Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
return extendStatics(d, b);
};
return function (d, b) {
extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
})();
(function (factory) {
if (typeof module === "object" && typeof module.exports === "object") {
var v = factory(require, exports);
if (v !== undefined) module.exports = v;
}
else if (typeof define === "function" && define.amd) {
define(["require", "exports", "../release/go.js"], factory);
}
})(function (require, exports) {
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
/*
* 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.
*/
var go = require("../release/go.js");
/**
* The GeometryReshapingTool class allows for a Shape's Geometry to be modified by the user
* via the dragging of tool handles.
* This does not handle Links, whose routes should be reshaped by the LinkReshapingTool.
* The {@link #reshapeObjectName} needs to identify the named {@link Shape} within the
* selected {@link Part}.
* If the shape cannot be found or if its {@link Shape#geometry} is not of type {@link Geometry.Path},
* this will not show any GeometryReshaping {@link Adornment}.
* At the current time this tool does not support adding or removing {@link PathSegment}s to the Geometry.
*
* If you want to experiment with this extension, try the <a href="../../extensionsTS/GeometryReshaping.html">Geometry Reshaping</a> sample.
* @category Tool Extension
*/
var GeometryReshapingTool = /** @class */ (function (_super) {
__extends(GeometryReshapingTool, _super);
/**
* Constructs a GeometryReshapingTool and sets the handle and name of the tool.
*/
function GeometryReshapingTool() {
var _this = _super.call(this) || this;
_this._reshapeObjectName = 'SHAPE'; // ??? can't add Part.reshapeObjectName property
// there's no Part.reshapeAdornmentTemplate either
// internal state
_this._handle = null;
_this._adornedShape = null;
_this._originalGeometry = null; // in case the tool is cancelled and the UndoManager is not enabled
var h = new go.Shape();
h.figure = 'Diamond';
h.desiredSize = new go.Size(7, 7);
h.fill = 'lightblue';
h.stroke = 'dodgerblue';
h.cursor = 'move';
_this._handleArchetype = h;
_this.name = 'GeometryReshaping';
return _this;
}
Object.defineProperty(GeometryReshapingTool.prototype, "handleArchetype", {
/**
* A small GraphObject used as a reshape handle for each segment.
* The default GraphObject is a small blue diamond.
*/
get: function () { return this._handleArchetype; },
set: function (value) { this._handleArchetype = value; },
enumerable: true,
configurable: true
});
Object.defineProperty(GeometryReshapingTool.prototype, "reshapeObjectName", {
/**
* The name of the GraphObject to be reshaped.
*/
get: function () { return this._reshapeObjectName; },
set: function (value) { this._reshapeObjectName = value; },
enumerable: true,
configurable: true
});
Object.defineProperty(GeometryReshapingTool.prototype, "handle", {
/**
* This read-only property returns the {@link GraphObject} that is the tool handle being dragged by the user.
* This will be contained by an {@link Adornment} whose category is "GeometryReshaping".
* Its {@link Adornment#adornedObject} is the same as the {@link #adornedShape}.
*/
get: function () { return this._handle; },
enumerable: true,
configurable: true
});
Object.defineProperty(GeometryReshapingTool.prototype, "adornedShape", {
/**
* Gets the {@link Shape} that is being reshaped.
* This must be contained within the selected Part.
*/
get: function () { return this._adornedShape; },
enumerable: true,
configurable: true
});
Object.defineProperty(GeometryReshapingTool.prototype, "originalGeometry", {
/**
* This read-only property remembers the original value for {@link Shape#geometry},
* so that it can be restored if this tool is cancelled.
*/
get: function () { return this._originalGeometry; },
enumerable: true,
configurable: true
});
/**
* Show an {@link Adornment} with a reshape handle at each point of the geometry.
* Don't show anything if {@link #reshapeObjectName} doesn't identify a {@link Shape}
* that has a {@link Shape#geometry} of type {@link Geometry.Path}.
*/
GeometryReshapingTool.prototype.updateAdornments = function (part) {
if (part === null || part instanceof go.Link)
return; // this tool never applies to Links
if (part.isSelected && !this.diagram.isReadOnly) {
var selelt = part.findObject(this.reshapeObjectName);
if (selelt instanceof go.Shape && selelt.geometry !== null &&
selelt.actualBounds.isReal() && selelt.isVisibleObject() &&
part.canReshape() && part.actualBounds.isReal() && part.isVisible() &&
selelt.geometry.type === go.Geometry.Path) {
var adornment = part.findAdornment(this.name);
if (adornment === null) {
adornment = this.makeAdornment(selelt);
}
if (adornment !== null) {
// update the position/alignment of each handle
var geo_1 = selelt.geometry;
var b_1 = geo_1.bounds;
// update the size of the adornment
var body = adornment.findObject('BODY');
if (body !== null)
body.desiredSize = b_1.size;
adornment.elements.each(function (h) {
if (h._typ === undefined)
return;
var fig = geo_1.figures.elt(h._fig);
var seg = fig.segments.elt(h._seg);
var x = 0;
var y = 0;
switch (h._typ) {
case 0:
x = fig.startX;
y = fig.startY;
break;
case 1:
x = seg.endX;
y = seg.endY;
break;
case 2:
x = seg.point1X;
y = seg.point1Y;
break;
case 3:
x = seg.point2X;
y = seg.point2Y;
break;
}
h.alignment = new go.Spot(0, 0, x - b_1.x, y - b_1.y);
});
part.addAdornment(this.name, adornment);
adornment.location = selelt.getDocumentPoint(go.Spot.TopLeft);
adornment.angle = selelt.getDocumentAngle();
return;
}
}
}
part.removeAdornment(this.name);
};
/**
* @hidden @internal
*/
GeometryReshapingTool.prototype.makeAdornment = function (selelt) {
var adornment = new go.Adornment();
adornment.type = go.Panel.Spot;
adornment.locationObjectName = 'BODY';
adornment.locationSpot = new go.Spot(0, 0, -selelt.strokeWidth / 2, -selelt.strokeWidth / 2);
var h = new go.Shape();
h.name = 'BODY';
h.fill = null;
h.stroke = null;
h.strokeWidth = 0;
adornment.add(h);
var geo = selelt.geometry;
if (geo !== null) {
// requires Path Geometry, checked above in updateAdornments
for (var f = 0; f < geo.figures.count; f++) {
var fig = geo.figures.elt(f);
for (var g = 0; g < fig.segments.count; g++) {
var seg = fig.segments.elt(g);
if (g === 0) {
h = this.makeHandle(selelt, fig, seg);
if (h !== null) {
h._typ = 0;
h._fig = f;
h._seg = g;
adornment.add(h);
}
}
h = this.makeHandle(selelt, fig, seg);
if (h !== null) {
h._typ = 1;
h._fig = f;
h._seg = g;
adornment.add(h);
}
if (seg.type === go.PathSegment.QuadraticBezier || seg.type === go.PathSegment.Bezier) {
h = this.makeHandle(selelt, fig, seg);
if (h !== null) {
h._typ = 2;
h._fig = f;
h._seg = g;
adornment.add(h);
}
if (seg.type === go.PathSegment.Bezier) {
h = this.makeHandle(selelt, fig, seg);
if (h !== null) {
h._typ = 3;
h._fig = f;
h._seg = g;
adornment.add(h);
}
}
}
}
}
}
adornment.category = this.name;
adornment.adornedObject = selelt;
return adornment;
};
/**
* @hidden @internal
*/
GeometryReshapingTool.prototype.makeHandle = function (selelt, fig, seg) {
var h = this.handleArchetype;
if (h === null)
return null;
return h.copy();
};
/**
* This tool may run when there is a mouse-down event on a reshape handle.
*/
GeometryReshapingTool.prototype.canStart = function () {
if (!this.isEnabled)
return false;
var diagram = this.diagram;
if (diagram.isReadOnly)
return false;
if (!diagram.allowReshape)
return false;
if (!diagram.lastInput.left)
return false;
var h = this.findToolHandleAt(diagram.firstInput.documentPoint, this.name);
return (h !== null);
};
/**
* Start reshaping, if {@link #findToolHandleAt} finds a reshape handle at the mouse down point.
*
* If successful this sets {@link #handle} to be the reshape handle that it finds
* and {@link #adornedShape} to be the {@link Shape} being reshaped.
* It also remembers the original geometry in case this tool is cancelled.
* And it starts a transaction.
*/
GeometryReshapingTool.prototype.doActivate = function () {
var diagram = this.diagram;
this._handle = this.findToolHandleAt(diagram.firstInput.documentPoint, this.name);
if (this._handle === null)
return;
var shape = this._handle.part.adornedObject;
if (!shape)
return;
this._adornedShape = shape;
diagram.isMouseCaptured = true;
this.startTransaction(this.name);
this._originalGeometry = shape.geometry;
this.isActive = true;
};
/**
* This stops the current reshaping operation with the Shape as it is.
*/
GeometryReshapingTool.prototype.doDeactivate = function () {
this.stopTransaction();
this._handle = null;
this._adornedShape = null;
var diagram = this.diagram;
diagram.isMouseCaptured = false;
this.isActive = false;
};
/**
* Restore the shape to be the original geometry and stop this tool.
*/
GeometryReshapingTool.prototype.doCancel = function () {
var shape = this._adornedShape;
if (shape !== null) {
// explicitly restore the original route, in case !UndoManager.isEnabled
shape.geometry = this._originalGeometry;
}
this.stopTool();
};
/**
* Call {@link #reshape} with a new point determined by the mouse
* to change the geometry of the {@link #adornedShape}.
*/
GeometryReshapingTool.prototype.doMouseMove = function () {
var diagram = this.diagram;
if (this.isActive) {
var newpt = this.computeReshape(diagram.lastInput.documentPoint);
this.reshape(newpt);
}
};
/**
* Reshape the Shape's geometry with a point based on the most recent mouse point by calling {@link #reshape},
* and then stop this tool.
*/
GeometryReshapingTool.prototype.doMouseUp = function () {
var diagram = this.diagram;
if (this.isActive) {
var newpt = this.computeReshape(diagram.lastInput.documentPoint);
this.reshape(newpt);
this.transactionResult = this.name; // success
}
this.stopTool();
};
/**
* Change the geometry of the {@link #adornedShape} by moving the point corresponding to the current
* {@link #handle} to be at the given {@link Point}.
* This is called by {@link #doMouseMove} and {@link #doMouseUp} with the result of calling
* {@link #computeReshape} to constrain the input point.
* @param {Point} newPoint the value of the call to {@link #computeReshape}.
*/
GeometryReshapingTool.prototype.reshape = function (newPoint) {
var shape = this.adornedShape;
if (shape === null || shape.geometry === null)
return;
var locpt = shape.getLocalPoint(newPoint);
var geo = shape.geometry.copy();
var type = this.handle._typ;
if (type === undefined)
return;
var fig = geo.figures.elt(this.handle._fig);
var seg = fig.segments.elt(this.handle._seg);
switch (type) {
case 0:
fig.startX = locpt.x;
fig.startY = locpt.y;
break;
case 1:
seg.endX = locpt.x;
seg.endY = locpt.y;
break;
case 2:
seg.point1X = locpt.x;
seg.point1Y = locpt.y;
break;
case 3:
seg.point2X = locpt.x;
seg.point2Y = locpt.y;
break;
}
var offset = geo.normalize(); // avoid any negative coordinates in the geometry
shape.desiredSize = new go.Size(NaN, NaN); // clear the desiredSize so Geometry can determine size
shape.geometry = geo; // modify the Shape
var part = shape.part; // move the Part holding the Shape
if (part === null)
return;
part.ensureBounds();
if (part.locationObject !== shape && !part.locationSpot.equals(go.Spot.Center)) { // but only if the locationSpot isn't Center
// support the whole Node being rotated
part.move(part.position.copy().subtract(offset.rotate(part.angle)));
}
this.diagram.maybeUpdate(); // force more frequent drawing for smoother looking behavior
};
/**
* This is called by {@link #doMouseMove} and {@link #doMouseUp} to limit the input point
* before calling {@link #reshape}.
* By default, this doesn't limit the input point.
* @param {Point} p the point where the handle is being dragged.
* @return {Point}
*/
GeometryReshapingTool.prototype.computeReshape = function (p) {
return p; // no constraints on the points
};
return GeometryReshapingTool;
}(go.Tool));
exports.GeometryReshapingTool = GeometryReshapingTool;
});