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AncestorListener.java
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1998-06-30
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/*
* @(#)AncestorListener.java 1.4 97/08/26
*
* Copyright (c) 1997 Sun Microsystems, Inc. All Rights Reserved.
*
* This software is the confidential and proprietary information of Sun
* Microsystems, Inc. ("Confidential Information"). You shall not
* disclose such Confidential Information and shall use it only in
* accordance with the terms of the license agreement you entered into
* with Sun.
*
* SUN MAKES NO REPRESENTATIONS OR WARRANTIES ABOUT THE SUITABILITY OF THE
* SOFTWARE, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
* IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
* PURPOSE, OR NON-INFRINGEMENT. SUN SHALL NOT BE LIABLE FOR ANY DAMAGES
* SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR DISTRIBUTING
* THIS SOFTWARE OR ITS DERIVATIVES.
*
*/
package com.sun.java.swing.event;
import java.awt.event.*;
import java.awt.*;
import java.util.*;
import com.sun.java.swing.*;
/**
* AncestorListener
*
* Interface to support notification when changes occur to a JComponent or one
* of its ancestors. These include movement and when the component becomes
* visible or invisible, either by the setVisible() method or by being added
* or removed from the component hierarchy.
*
* @version 1.4 08/26/97
* @author Dave Moore
*/
public interface AncestorListener extends EventListener {
/**
* Called when the source or one of its ancestors is made visible
* either by setVisible(true) being called or by its being
* added to the component hierarchy. The method is only called
* if the source has actually become visible. For this to be true
* all its parents must be visible and it must be in a hierarchy
* rooted at a Window
*/
public void ancestorAdded(AncestorEvent event);
/**
* Called when the source or one of its ancestors is made invisible
* either by setVisible(false) being called or by its being
* remove from the component hierarchy. The method is only called
* if the source has actually become invisible. For this to be true
* at least one of its parents must by invisible or it is not in
* a hierarchy rooted at a Window
*/
public void ancestorRemoved(AncestorEvent event);
/**
* Called when either the source or one of its ancestors is moved.
*/
public void ancestorMoved(AncestorEvent event);
}