gcc/libjava/java/awt/ItemSelectable.java

/* ItemSelectable.java -- items that can be selected
   Copyright (C) 1999, 2002 Free Software Foundation, Inc.

This file is part of GNU Classpath.

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it under the terms of the GNU General Public License as published by
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WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
General Public License for more details.

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Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA.

Linking this library statically or dynamically with other modules is
making a combined work based on this library.  Thus, the terms and
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As a special exception, the copyright holders of this library give you
permission to link this library with independent modules to produce an
executable, regardless of the license terms of these independent
modules, and to copy and distribute the resulting executable under
terms of your choice, provided that you also meet, for each linked
independent module, the terms and conditions of the license of that
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this exception to your version of the library, but you are not
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exception statement from your version. */


package java.awt;

import java.awt.event.ItemListener;

/**
 * This interface is for objects that can have one or more items selected.
 * For example, radio buttons.
 *
 * @author Aaron M. Renn <arenn@urbanophile.com>
 * @since 1.0
 * @status updated to 1.4
 */
public interface ItemSelectable
{
  /**
   * Returns the list of objects that are selected in this component.
   *
   * @return the list of selected objects, or null
   */
  Object[] getSelectedObjects();

  /**
   * Adds an item listener to this object.  It will receive selection events
   * for this object by the user (but not programatically). If listener is
   * null, it is ignored.
   *
   * @param listener the item listener to add
   */
  void addItemListener(ItemListener listener);

  /**
   * Removes an item listener from this object.
   *
   * @param listener the item listener to remove
   */
  void removeItemListener(ItemListener listener);
} // interface ItemSelectable