1 /*******************************************************************************
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2 * Copyright (c) 2011 Association for Decentralized Information Management in
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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.diagram.symbollibrary.ui;
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14 import org.simantics.diagram.symbollibrary.ISymbolGroup;
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15 import org.simantics.g2d.gallery.GalleryViewer;
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16 import org.simantics.scenegraph.g2d.events.Event;
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19 * @author Tuukka Lehtonen
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21 public interface SymbolLibraryEventHandler {
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24 * @param event the event that occurred
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25 * @param group the symbol group within which the event occurred or
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26 * <code>null</code> if event occurred outside of an existing symbol
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28 * @param viewer the viewer of for the group or <code>null</code> if viewer
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29 * is not yet initialized
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30 * @return <code>true</code> if the handler consumes the event
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32 boolean handleEvent(Event event, ISymbolGroup group, GalleryViewer viewer);
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