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.Shape;
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16 import org.simantics.g2d.diagram.handler.PickRequest.PickPolicy;
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17 import org.simantics.g2d.element.IElement;
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18 import org.simantics.g2d.utils.GeometryUtils;
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22 * Pick-interface allows detailed pick test for an element.
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23 * If pick is not implemented, its ({@link Outline}) is used for pick test.
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24 * If outline is not implemented, its bounds is used for pick.
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26 * @See {@link InternalSize}
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27 * @See {@link BoundsPickable}
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28 * @See {@link GeometryUtils}
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30 * @author Toni Kalajainen
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32 public interface Pick extends ElementHandler {
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36 * @param e the element to pick test
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37 * @param s the picking shape to test against e, in canvas coordinate system
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38 * @param policy the criterion for picking acceptance
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39 * @return <code>true</code> if shape intersects/contains element e, otherwise <code>false</code>
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41 boolean pickTest(IElement e, Shape s, PickPolicy policy);
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