54 lines
1.8 KiB
JavaScript
54 lines
1.8 KiB
JavaScript
"use strict";
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/*
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* Copyright (C) 1998-2017 by Northwoods Software Corporation. All Rights Reserved.
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*/
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/**
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* @constructor
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* @extends ResizingTool
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* @class
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* A custom tool for resizing multiple objects at once.
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*/
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function ResizeMultipleTool() {
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go.ResizingTool.call(this);
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this.name = "ResizeMultiple";
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}
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go.Diagram.inherit(ResizeMultipleTool, go.ResizingTool);
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/**
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* Overrides ResizingTool.resize to resize all selected objects to the same size.
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* @this {ResizeMultipleTool}
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* @param {Rect} newr the intended new rectangular bounds for each Part's {@link Part#resizeObject}.
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*/
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ResizeMultipleTool.prototype.resize = function(newr) {
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var diagram = this.diagram;
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if (diagram === null) return;
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diagram.selection.each(function(part) {
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if (part instanceof go.Link || part instanceof go.Group) return; // only Nodes and simple Parts
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var obj = part.resizeObject;
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// calculate new location
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var pos = part.position.copy();
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var angle = obj.getDocumentAngle();
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var sc = obj.getDocumentScale();
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var radAngle = Math.PI * angle / 180;
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var angleCos = Math.cos(radAngle);
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var angleSin = Math.sin(radAngle);
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var deltaWidth = newr.width - obj.naturalBounds.width;
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var deltaHeight = newr.height - obj.naturalBounds.height;
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var angleRight = (angle > 270 || angle < 90) ? 1 : 0;
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var angleBottom = (angle > 0 && angle < 180) ? 1 : 0;
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var angleLeft = (angle > 90 && angle < 270) ? 1 : 0;
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var angleTop = (angle > 180 && angle < 360) ? 1 : 0;
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pos.x += sc * ((newr.x + deltaWidth * angleLeft) * angleCos - (newr.y + deltaHeight * angleBottom) * angleSin);
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pos.y += sc * ((newr.x + deltaWidth * angleTop) * angleSin + (newr.y + deltaHeight * angleLeft) * angleCos);
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obj.desiredSize = newr.size;
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part.position = pos;
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});
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}
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