/*

* Copyright (c) 1996, 2013, Oracle and/or its affiliates. All rights reserved.

* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.

*

*

*

*

*

*

*

*

*

*

*

*

*

*

*

*

*

*

*

*

*/

package java.awt.event;

import java.util.EventListener;

/**

* The listener interface for receiving component events.

* The class that is interested in processing a component event

* either implements this interface (and all the methods it

* contains) or extends the abstract <code>ComponentAdapter</code> class

* (overriding only the methods of interest).

* The listener object created from that class is then registered with a

* component using the component's <code>addComponentListener</code>

* method. When the component's size, location, or visibility

* changes, the relevant method in the listener object is invoked,

* and the <code>ComponentEvent</code> is passed to it.

* <P>

* Component events are provided for notification purposes ONLY;

* The AWT will automatically handle component moves and resizes

* internally so that GUI layout works properly regardless of

* whether a program registers a <code>ComponentListener</code> or not.

*

* @see ComponentAdapter

* @see ComponentEvent

* @see <a href="http://docs.oracle.com/javase/tutorial/uiswing/events/componentlistener.html">Tutorial: Writing a Component Listener</a>

*

* @author Carl Quinn

* @since 1.1

*/

public interface ComponentListener extends EventListener {

/**

* Invoked when the component's size changes.

*/

public void componentResized(ComponentEvent e);

/**

* Invoked when the component's position changes.

*/

public void componentMoved(ComponentEvent e);

/**

* Invoked when the component has been made visible.

*/

public void componentShown(ComponentEvent e);

/**

* Invoked when the component has been made invisible.

*/

public void componentHidden(ComponentEvent e);

}