/*
* Copyright (c) 1997, 1999, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package javax.swing.event;
import java.util.EventListener;
/**
* The listener that's notified when a tree expands or collapses
* a node.
* For further documentation and examples see
* <a
href="http://java.sun.com/docs/books/tutorial/uiswing/events/treeexpansionlistener.html">How to Write a Tree Expansion Listener</a>,
* a section in <em>The Java Tutorial.</em>
*
* @author Scott Violet
*/
public interface TreeExpansionListener extends EventListener
{
/**
* Called whenever an item in the tree has been expanded.
*/
public void treeExpanded(TreeExpansionEvent event);
/**
* Called whenever an item in the tree has been collapsed.
*/
public void treeCollapsed(TreeExpansionEvent event);
}