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/*
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* Copyright 1999 Sun Microsystems, Inc. All Rights Reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Sun designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Sun in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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* CA 95054 USA or visit www.sun.com if you need additional information or
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* have any questions.
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*/
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package java.awt.event;
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import java.util.EventListener;
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/**
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* The listener interface for receiving ancestor moved and resized events.
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* The class that is interested in processing these events either implements
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* this interface (and all the methods it contains) or extends the abstract
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* <code>HierarchyBoundsAdapter</code> class (overriding only the method of
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* interest).
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* The listener object created from that class is then registered with a
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* Component using the Component's <code>addHierarchyBoundsListener</code>
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* method. When the hierarchy to which the Component belongs changes by
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* the resizing or movement of an ancestor, the relevant method in the listener
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* object is invoked, and the <code>HierarchyEvent</code> is passed to it.
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* <p>
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* Hierarchy events are provided for notification purposes ONLY;
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* The AWT will automatically handle changes to the hierarchy internally so
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* that GUI layout works properly regardless of whether a
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* program registers an <code>HierarchyBoundsListener</code> or not.
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*
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* @author David Mendenhall
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* @see HierarchyBoundsAdapter
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* @see HierarchyEvent
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* @since 1.3
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*/
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public interface HierarchyBoundsListener extends EventListener {
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/**
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* Called when an ancestor of the source is moved.
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*/
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public void ancestorMoved(HierarchyEvent e);
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/**
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* Called when an ancestor of the source is resized.
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*/
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public void ancestorResized(HierarchyEvent e);
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}
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