author | darcy |
Thu, 09 Jan 2014 14:15:01 -0800 | |
changeset 22254 | 8550495a4d78 |
parent 20455 | f6f9a0c2796b |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 1996, 2013, 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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import java.util.EventListener; |
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/** |
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* The listener interface for receiving container events. |
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* The class that is interested in processing a container event |
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* either implements this interface (and all the methods it |
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* contains) or extends the abstract <code>ContainerAdapter</code> class |
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* (overriding only the methods of 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>addContainerListener</code> |
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* method. When the container's contents change because a component |
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* has been added or removed, the relevant method in the listener object |
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* is invoked, and the <code>ContainerEvent</code> is passed to it. |
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* <P> |
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* Container events are provided for notification purposes ONLY; |
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* The AWT will automatically handle add and remove operations |
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* internally so the program works properly regardless of |
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* whether the program registers a {@code ContainerListener} or not. |
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* |
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* @see ContainerAdapter |
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* @see ContainerEvent |
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* @see <a href="http://docs.oracle.com/javase/tutorial/uiswing/events/containerlistener.html">Tutorial: Writing a Container Listener</a> |
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* |
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* @author Tim Prinzing |
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* @author Amy Fowler |
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* @since 1.1 |
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*/ |
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public interface ContainerListener extends EventListener { |
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/** |
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* Invoked when a component has been added to the container. |
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* @param e the event to be processed |
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*/ |
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public void componentAdded(ContainerEvent e); |
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/** |
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* Invoked when a component has been removed from the container. |
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darcy
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20455
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changeset
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* @param e the event to be processed |
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*/ |
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public void componentRemoved(ContainerEvent e); |
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} |