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58 lines
2.0 KiB
58 lines
2.0 KiB
/*
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* Copyright (C) 1998-2019 by Northwoods Software Corporation. All Rights Reserved.
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*/
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import * as go from '../release/go';
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/**
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* The ResizeMultipleTool class lets the user resize multiple objects at once.
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*
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* If you want to experiment with this extension, try the <a href="../../extensionsTS/ResizeMultiple.html">Resize Multiple</a> sample.
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* @category Tool Extension
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*/
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export class ResizeMultipleTool extends go.ResizingTool {
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/**
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* Constructs a ResizeMultipleTool and sets the name for the tool.
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*/
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constructor() {
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super();
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this.name = 'ResizeMultiple';
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}
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/**
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* Overrides {@link ResizingTool#resize} to resize all selected objects to the same size.
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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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public resize(newr: go.Rect): void {
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const diagram = this.diagram;
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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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const obj = part.resizeObject;
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// calculate new location
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const pos = part.position.copy();
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const angle = obj.getDocumentAngle();
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const sc = obj.getDocumentScale();
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const radAngle = Math.PI * angle / 180;
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const angleCos = Math.cos(radAngle);
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const angleSin = Math.sin(radAngle);
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const deltaWidth = newr.width - obj.naturalBounds.width;
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const deltaHeight = newr.height - obj.naturalBounds.height;
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const angleRight = (angle > 270 || angle < 90) ? 1 : 0;
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const angleBottom = (angle > 0 && angle < 180) ? 1 : 0;
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const angleLeft = (angle > 90 && angle < 270) ? 1 : 0;
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const 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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}
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