Source for java.awt.event.HierarchyListener

   1: /* -- listens to changes in the component hierarchy
   2:    Copyright (C) 2000, 2002 Free Software Foundation
   4: This file is part of GNU Classpath.
   6: GNU Classpath is free software; you can redistribute it and/or modify
   7: it under the terms of the GNU General Public License as published by
   8: the Free Software Foundation; either version 2, or (at your option)
   9: any later version.
  11: GNU Classpath is distributed in the hope that it will be useful, but
  12: WITHOUT ANY WARRANTY; without even the implied warranty of
  14: General Public License for more details.
  16: You should have received a copy of the GNU General Public License
  17: along with GNU Classpath; see the file COPYING.  If not, write to the
  18: Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  19: 02110-1301 USA.
  21: Linking this library statically or dynamically with other modules is
  22: making a combined work based on this library.  Thus, the terms and
  23: conditions of the GNU General Public License cover the whole
  24: combination.
  26: As a special exception, the copyright holders of this library give you
  27: permission to link this library with independent modules to produce an
  28: executable, regardless of the license terms of these independent
  29: modules, and to copy and distribute the resulting executable under
  30: terms of your choice, provided that you also meet, for each linked
  31: independent module, the terms and conditions of the license of that
  32: module.  An independent module is a module which is not derived from
  33: or based on this library.  If you modify this library, you may extend
  34: this exception to your version of the library, but you are not
  35: obligated to do so.  If you do not wish to do so, delete this
  36: exception statement from your version. */
  39: package java.awt.event;
  41: import java.util.EventListener;
  43: /**
  44:  * This listens for changes in the hierarchy tree of components. Normally it is
  45:  * not necessary to process these events since the AWT handles them
  46:  * internally, taking all appropriate actions.
  47:  *
  48:  * @author Bryce McKinlay
  49:  * @see HierarchyEvent
  50:  * @since 1.3
  51:  * @status updated to 1.4
  52:  */
  53: public interface HierarchyListener extends EventListener
  54: {
  55:   /**
  56:    * Called when the hierarchy of this component changes. Use
  57:    * <code>getChangeFlags()</code> on the event to see what exactly changed.
  58:    *
  59:    * @param e the event describing the change
  60:    */
  61:   void hierarchyChanged(HierarchyEvent e);
  62: } // interface HierarchyListener