1 /*******************************************************************************
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2 * Copyright (c) 2007, 2010 Association for Decentralized Information Management
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3 * in Industry THTH ry.
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4 * All rights reserved. This program and the accompanying materials
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5 * are made available under the terms of the Eclipse Public License v1.0
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6 * which accompanies this distribution, and is available at
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7 * http://www.eclipse.org/legal/epl-v10.html
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10 * VTT Technical Research Centre of Finland - initial API and implementation
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11 *******************************************************************************/
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12 package org.simantics.g2d.element.handler;
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14 import java.awt.geom.Point2D;
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16 import org.simantics.g2d.element.IElement;
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17 import org.simantics.g2d.element.ElementClass.Single;
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18 import org.simantics.g2d.element.handler.impl.DefaultTransform;
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19 import org.simantics.g2d.element.handler.impl.Scaleable;
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22 * Interface that tags that the element is scalable. Scaling modifies the
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23 * transform of the element (on canvas), where as resizeing modifies the internal
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24 * size of the element.
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26 * @see DefaultTransform default impl
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27 * @see Scaleable default impl
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28 * @author Toni Kalajainen
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31 public interface Scale extends ElementHandler {
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34 * Get scale of the element
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38 Point2D getScale(IElement e);
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41 * Set scale of the element
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45 void setScale(IElement e, Point2D newScale);
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48 * Returns fixed width/height ratio of dimensions if there is one
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50 * @return aspect ratio or null
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52 Double getFixedAspectRatio(IElement e);
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55 * Return minimum scale if there is one
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56 * @return minimum scale or null
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58 Point2D getMinimumScale(IElement e);
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61 * return maximum scale if one exists
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62 * @return max scale or null
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64 Point2D getMaximumScale(IElement e);
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