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/*
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* Copyright (c) 1997, 1998, 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 javax.swing.event;
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import java.awt.event.*;
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import java.awt.*;
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import java.util.*;
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import javax.swing.*;
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/**
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* AncestorListener
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*
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* Interface to support notification when changes occur to a JComponent or one
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* of its ancestors. These include movement and when the component becomes
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* visible or invisible, either by the setVisible() method or by being added
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* or removed from the component hierarchy.
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*
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* @author Dave Moore
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*/
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public interface AncestorListener extends EventListener {
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/**
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* Called when the source or one of its ancestors is made visible
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* either by setVisible(true) being called or by its being
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* added to the component hierarchy. The method is only called
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* if the source has actually become visible. For this to be true
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* all its parents must be visible and it must be in a hierarchy
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* rooted at a Window
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*/
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public void ancestorAdded(AncestorEvent event);
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/**
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* Called when the source or one of its ancestors is made invisible
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* either by setVisible(false) being called or by its being
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* remove from the component hierarchy. The method is only called
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* if the source has actually become invisible. For this to be true
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* at least one of its parents must by invisible or it is not in
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* a hierarchy rooted at a Window
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*/
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public void ancestorRemoved(AncestorEvent event);
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/**
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* Called when either the source or one of its ancestors is moved.
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*/
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public void ancestorMoved(AncestorEvent event);
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}
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