markgojs
Version:
Interactive diagrams, charts, and graphs, such as trees, flowcharts, orgcharts, UML, BPMN, or business diagrams
174 lines (173 loc) • 7.31 kB
JavaScript
var __extends = (this && this.__extends) || (function () {
var 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 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"], factory);
}
})(function (require, exports) {
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
/*
* Copyright (C) 1998-2019 by Northwoods Software Corporation. All Rights Reserved.
*/
var go = require("../release/go");
// A custom Tool for moving a port on a Node
/**
* @constructor
* @extends Tool
* @class
* This tool only works when the Node has a port (any GraphObject) marked with
* a non-null and non-empty portId that is positioned in a Spot Panel,
* and the user holds down the Shift key.
* It works by modifying that port's GraphObject.alignment property.
*/
var PortShiftingTool = /** @class */ (function (_super) {
__extends(PortShiftingTool, _super);
function PortShiftingTool() {
var _this = _super.call(this) || this;
/** @type {GraphObject} */
_this.port = null;
/** @type {Spot} */
_this._originalAlignment = null;
_this.name = "PortShifting";
return _this;
}
/**
* This tool can only start if the mouse has moved enough so that it is not a click,
* and if the mouse down point is on a GraphObject "port" in a Spot Panel,
* as determined by findPort().
* @this {PortShiftingTool}
* @return {boolean}
*/
PortShiftingTool.prototype.canStart = function () {
if (!go.Tool.prototype.canStart.call(this))
return false;
var diagram = this.diagram;
if (diagram === null)
return false;
// require left button & that it has moved far enough away from the mouse down point, so it isn't a click
var e = diagram.lastInput;
if (!e.left || !e.shift)
return false;
if (!this.isBeyondDragSize())
return false;
return this.findPort() !== null;
};
/**
* From the GraphObject at the mouse point, search up the visual tree until we get to
* an object that has the portId property set to a non-empty string, that is in a Spot Panel,
* and that is not the main element of the panel (typically the first element).
* @this {PortShiftingTool}
* @return {GraphObject} This returns null if no such port is at the mouse down point.
*/
PortShiftingTool.prototype.findPort = function () {
var diagram = this.diagram;
var e = diagram.firstInput;
var elt = diagram.findObjectAt(e.documentPoint, null, null);
if (elt === null || !(elt.part instanceof go.Node))
return null;
while (elt !== null && elt.panel !== null) {
if (elt.panel.type === go.Panel.Spot && elt.panel.findMainElement() !== elt &&
elt.portId !== null && elt.portId !== "")
return elt;
elt = elt.panel;
}
return null;
};
;
/**
* Start a transaction, call findPort and remember it as the "port" property,
* and remember the original value for the port's alignment property.
* @this {PortShiftingTool}
*/
PortShiftingTool.prototype.doActivate = function () {
this.startTransaction("Shifted Label");
this.port = this.findPort();
if (this.port !== null) {
this._originalAlignment = this.port.alignment.copy();
var main = this.port.panel.findMainElement();
}
_super.prototype.doActivate.call(this);
};
/**
* Stop any ongoing transaction.
* @this {PortShiftingTool}
*/
PortShiftingTool.prototype.doDeactivate = function () {
_super.prototype.doDeactivate.call(this);
this.stopTransaction();
};
/**
* Clear any reference to a port element.
* @this {PortShiftingTool}
*/
PortShiftingTool.prototype.doStop = function () {
this.port = null;
_super.prototype.doStop.call(this);
};
/**
* Restore the port's original value for GraphObject.alignment.
* @this {PortShiftingTool}
*/
PortShiftingTool.prototype.doCancel = function () {
if (this.port !== null) {
this.port.alignment = this._originalAlignment;
}
_super.prototype.doCancel.call(this);
};
/**
* During the drag, call updateAlignment in order to set the GraphObject.alignment of the port.
* @this {PortShiftingTool}
*/
PortShiftingTool.prototype.doMouseMove = function () {
if (!this.isActive)
return;
this.updateAlignment();
};
/**
* At the end of the drag, update the alignment of the port and finish the tool,
* completing a transaction.
* @this {PortShiftingTool}
*/
PortShiftingTool.prototype.doMouseUp = function () {
if (!this.isActive)
return;
this.updateAlignment();
this.transactionResult = "Shifted Label";
this.stopTool();
};
/**
* Save the port's GraphObject.alignment as a fractional Spot in the Spot Panel
* that the port is in. Thus if the main element changes size, the relative positions
* of the ports will be maintained. But that does assume that the port must remain
* inside the main element -- it cannot wander away from the node.
* This does not modify the port's GraphObject.alignmentFocus property.
* @this {PortShiftingTool}
*/
PortShiftingTool.prototype.updateAlignment = function () {
if (this.port === null)
return;
var last = this.diagram.lastInput.documentPoint;
var main = this.port.panel.findMainElement();
var tl = main.getDocumentPoint(go.Spot.TopLeft);
var br = main.getDocumentPoint(go.Spot.BottomRight);
var x = Math.max(0, Math.min((last.x - tl.x) / (br.x - tl.x), 1));
var y = Math.max(0, Math.min((last.y - tl.y) / (br.y - tl.y), 1));
this.port.alignment = new go.Spot(x, y);
};
return PortShiftingTool;
}(go.Tool));
exports.PortShiftingTool = PortShiftingTool;
});