/*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
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* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
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* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
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*/
package java.awt.event;
import java.util.EventListener;
/**
* The listener interface for receiving ancestor moved and resized events.
* The class that is interested in processing these events either implements
* this interface (and all the methods it contains) or extends the abstract
* <code>HierarchyBoundsAdapter</code> class (overriding only the method of
* interest).
* The listener object created from that class is then registered with a
* Component using the Component's <code>addHierarchyBoundsListener</code>
* method. When the hierarchy to which the Component belongs changes by
* the resizing or movement of an ancestor, the relevant method in the listener
* object is invoked, and the <code>HierarchyEvent</code> is passed to it.
* <p>
* Hierarchy events are provided for notification purposes ONLY;
* The AWT will automatically handle changes to the hierarchy internally so
* that GUI layout works properly regardless of whether a
* program registers an <code>HierarchyBoundsListener</code> or not.
*
* @author David Mendenhall
* @see HierarchyBoundsAdapter
* @see HierarchyEvent
* @since 1.3
*/
public interface HierarchyBoundsListener extends EventListener {
/**
* Called when an ancestor of the source is moved.
*/
public void ancestorMoved(HierarchyEvent e);
/**
* Called when an ancestor of the source is resized.
*/
public void ancestorResized(HierarchyEvent e);
}