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src/java.desktop/share/classes/java/awt/event/HierarchyBoundsListener.java

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  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package java.awt.event;
  27 
  28 import java.util.EventListener;
  29 
  30 /**
  31  * The listener interface for receiving ancestor moved and resized events.
  32  * The class that is interested in processing these events either implements
  33  * this interface (and all the methods it contains) or extends the abstract
  34  * <code>HierarchyBoundsAdapter</code> class (overriding only the method of
  35  * interest).
  36  * The listener object created from that class is then registered with a
  37  * Component using the Component's <code>addHierarchyBoundsListener</code>
  38  * method. When the hierarchy to which the Component belongs changes by
  39  * the resizing or movement of an ancestor, the relevant method in the listener
  40  * object is invoked, and the <code>HierarchyEvent</code> is passed to it.
  41  * <p>
  42  * Hierarchy events are provided for notification purposes ONLY;
  43  * The AWT will automatically handle changes to the hierarchy internally so
  44  * that GUI layout works properly regardless of whether a
  45  * program registers an <code>HierarchyBoundsListener</code> or not.
  46  *
  47  * @author      David Mendenhall
  48  * @see         HierarchyBoundsAdapter
  49  * @see         HierarchyEvent
  50  * @since       1.3
  51  */
  52 public interface HierarchyBoundsListener extends EventListener {
  53     /**
  54      * Called when an ancestor of the source is moved.
  55      * @param e the event to be processed
  56      */
  57     public void ancestorMoved(HierarchyEvent e);
  58 
  59     /**
  60      * Called when an ancestor of the source is resized.
  61      * @param e the event to be processed
  62      */
  63     public void ancestorResized(HierarchyEvent e);
  64 }


  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package java.awt.event;
  27 
  28 import java.util.EventListener;
  29 
  30 /**
  31  * The listener interface for receiving ancestor moved and resized events.
  32  * The class that is interested in processing these events either implements
  33  * this interface (and all the methods it contains) or extends the abstract
  34  * {@code HierarchyBoundsAdapter} class (overriding only the method of
  35  * interest).
  36  * The listener object created from that class is then registered with a
  37  * Component using the Component's {@code addHierarchyBoundsListener}
  38  * method. When the hierarchy to which the Component belongs changes by
  39  * the resizing or movement of an ancestor, the relevant method in the listener
  40  * object is invoked, and the {@code HierarchyEvent} is passed to it.
  41  * <p>
  42  * Hierarchy events are provided for notification purposes ONLY;
  43  * The AWT will automatically handle changes to the hierarchy internally so
  44  * that GUI layout works properly regardless of whether a
  45  * program registers an {@code HierarchyBoundsListener} or not.
  46  *
  47  * @author      David Mendenhall
  48  * @see         HierarchyBoundsAdapter
  49  * @see         HierarchyEvent
  50  * @since       1.3
  51  */
  52 public interface HierarchyBoundsListener extends EventListener {
  53     /**
  54      * Called when an ancestor of the source is moved.
  55      * @param e the event to be processed
  56      */
  57     public void ancestorMoved(HierarchyEvent e);
  58 
  59     /**
  60      * Called when an ancestor of the source is resized.
  61      * @param e the event to be processed
  62      */
  63     public void ancestorResized(HierarchyEvent e);
  64 }
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