001/* ComponentListener.java -- receive all events for a component
002   Copyright (C) 1999, 2002, 2005  Free Software Foundation, Inc.
003
004This file is part of GNU Classpath.
005
006GNU Classpath is free software; you can redistribute it and/or modify
007it under the terms of the GNU General Public License as published by
008the Free Software Foundation; either version 2, or (at your option)
009any later version.
010
011GNU Classpath is distributed in the hope that it will be useful, but
012WITHOUT ANY WARRANTY; without even the implied warranty of
013MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
014General Public License for more details.
015
016You should have received a copy of the GNU General Public License
017along with GNU Classpath; see the file COPYING.  If not, write to the
018Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
01902110-1301 USA.
020
021Linking this library statically or dynamically with other modules is
022making a combined work based on this library.  Thus, the terms and
023conditions of the GNU General Public License cover the whole
024combination.
025
026As a special exception, the copyright holders of this library give you
027permission to link this library with independent modules to produce an
028executable, regardless of the license terms of these independent
029modules, and to copy and distribute the resulting executable under
030terms of your choice, provided that you also meet, for each linked
031independent module, the terms and conditions of the license of that
032module.  An independent module is a module which is not derived from
033or based on this library.  If you modify this library, you may extend
034this exception to your version of the library, but you are not
035obligated to do so.  If you do not wish to do so, delete this
036exception statement from your version. */
037
038
039package java.awt.event;
040
041import java.util.EventListener;
042
043/**
044 * This interface is for classes that receive all events from a component.
045 * Normally it is not necessary to process these events since the AWT
046 * handles them internally, taking all appropriate actions. To watch a subset
047 * of these events, use a ComponentAdapter.
048 *
049 * @author Aaron M. Renn (arenn@urbanophile.com)
050 * @see ComponentAdapter
051 * @see ComponentEvent
052 * @since 1.1
053 * @status updated to 1.4
054 */
055public interface ComponentListener extends EventListener
056{
057  /**
058   * This method is called when the component is resized.
059   *
060   * @param event the <code>ComponentEvent</code> indicating the resize
061   */
062  void componentResized(ComponentEvent event);
063
064  /**
065   * This method is called when the component is moved.
066   *
067   * @param event the <code>ComponentEvent</code> indicating the move
068   */
069  void componentMoved(ComponentEvent event);
070
071  /**
072   * This method is called when the component is made visible.
073   *
074   * @param event the <code>ComponentEvent</code> indicating the visibility
075   */
076  void componentShown(ComponentEvent event);
077
078  /**
079   * This method is called when the component is hidden.
080   *
081   * @param event the <code>ComponentEvent</code> indicating the visibility
082   */
083  void componentHidden(ComponentEvent event);
084} // interface ComponentListener