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/*
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* Copyright (c) 1999, Oracle and/or its affiliates. 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. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package java.awt.event;
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/**
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* An abstract adapter class for receiving ancestor moved and resized events.
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* The methods in this class are empty. This class exists as a
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* convenience for creating listener objects.
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* <p>
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* Extend this class and override the method for the event of interest. (If
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* you implement the <code>HierarchyBoundsListener</code> interface, you have
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* to define both methods in it. This abstract class defines null methods for
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* them both, so you only have to define the method for the event you care
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* about.)
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* <p>
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* Create a listener object using your class and then register it 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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* resize 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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*
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* @author David Mendenhall
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* @see HierarchyBoundsListener
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* @see HierarchyEvent
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* @since 1.3
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*/
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public abstract class HierarchyBoundsAdapter implements HierarchyBoundsListener
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{
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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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