1 /*******************************************************************************
2 * Copyright (c) 2007, 2010 Association for Decentralized Information Management
4 * All rights reserved. This program and the accompanying materials
5 * are made available under the terms of the Eclipse Public License v1.0
6 * which accompanies this distribution, and is available at
7 * http://www.eclipse.org/legal/epl-v10.html
10 * VTT Technical Research Centre of Finland - initial API and implementation
11 *******************************************************************************/
12 package org.simantics.g2d.element.handler;
14 import java.awt.Shape;
16 import org.simantics.g2d.diagram.handler.PickRequest.PickPolicy;
17 import org.simantics.g2d.element.IElement;
18 import org.simantics.g2d.utils.GeometryUtils;
22 * Pick-interface allows detailed pick test for an element.
23 * If pick is not implemented, its ({@link Outline}) is used for pick test.
24 * If outline is not implemented, its bounds is used for pick.
26 * @See {@link InternalSize}
27 * @See {@link BoundsPickable}
28 * @See {@link GeometryUtils}
30 * @author Toni Kalajainen
32 public interface Pick extends ElementHandler {
36 * @param e the element to pick test
37 * @param s the picking shape to test against e, in canvas coordinate system
38 * @param policy the criterion for picking acceptance
39 * @return <code>true</code> if shape intersects/contains element e, otherwise <code>false</code>
41 boolean pickTest(IElement e, Shape s, PickPolicy policy);