001/* ColorSelectionModel.java --
002   Copyright (C) 2002, 2004, 2006,  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 javax.swing.colorchooser;
040
041import java.awt.Color;
042
043import javax.swing.JColorChooser;
044import javax.swing.event.ChangeEvent;
045import javax.swing.event.ChangeListener;
046
047/**
048 * A model that is used by the {@link JColorChooser} component to represent the
049 * selected color.
050 * 
051 * @author      Andrew Selkirk
052 */
053public interface ColorSelectionModel 
054{
055
056  /**
057   * Returns the selected color.
058   * 
059   * @return The selected color.
060   */
061  Color getSelectedColor();
062
063  /**
064   * Sets the selected color.
065   * 
066   * @param color  the selected color.
067   */
068  void setSelectedColor(Color color);
069
070  /**
071   * Registers a listener to receive {@link ChangeEvent} notifications
072   * from this model.
073   * 
074   * @param listener  the listener.
075   */
076  void addChangeListener(ChangeListener listener);
077
078  /**
079   * Deregisters a listener so that it no longer receives {@link ChangeEvent} 
080   * notifications from this action.
081   *
082   * @param listener  the listener.
083   */
084  void removeChangeListener(ChangeListener listener);
085
086}