Class BasicTreeUI.TreeTraverseAction

Enclosing Class:
Implemented Interfaces:
Action, ActionListener, Cloneable, EventListener, Serializable

public class BasicTreeUI.TreeTraverseAction
extends AbstractAction

TreeTraverseAction is the action used for left/right keys. Will toggle the expandedness of a node, as well as potentially incrementing the selection.
See Also:
Serialized Form

Field Summary

protected int
Determines direction to traverse, 1 means expand, -1 means collapse.

Fields inherited from class javax.swing.AbstractAction

changeSupport, enabled

Fields inherited from interface javax.swing.Action


Constructor Summary

TreeTraverseAction(int direction, String name)

Method Summary

actionPerformed(ActionEvent e)
Invoked when an action occurs.
Returns true if the action is enabled.

Methods inherited from class javax.swing.AbstractAction

addPropertyChangeListener, clone, firePropertyChange, getKeys, getPropertyChangeListeners, getValue, isEnabled, putValue, removePropertyChangeListener, setEnabled

Methods inherited from class java.lang.Object

clone, equals, extends Object> getClass, finalize, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details


protected int direction
Determines direction to traverse, 1 means expand, -1 means collapse.

Constructor Details


public TreeTraverseAction(int direction,
                          String name)
direction - to traverse
name - is the name of the direction

Method Details


public void actionPerformed(ActionEvent e)
Invoked when an action occurs.
Specified by:
actionPerformed in interface ActionListener
e - the event that occured


public boolean isEnabled()
Returns true if the action is enabled.
Specified by:
isEnabled in interface Action
isEnabled in interface AbstractAction
true if the action is enabled, false otherwise -- Copyright (C) 2002, 2004, 2005, 2006, Free Software Foundation, Inc. This file is part of GNU Classpath. GNU Classpath is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version. GNU Classpath 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 for more details. You should have received a copy of the GNU General Public License along with GNU Classpath; see the file COPYING. If not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. Linking this library statically or dynamically with other modules is making a combined work based on this library. Thus, the terms and conditions of the GNU General Public License cover the whole combination. As a special exception, the copyright holders of this library give you permission to link this library with independent modules to produce an executable, regardless of the license terms of these independent modules, and to copy and distribute the resulting executable under terms of your choice, provided that you also meet, for each linked independent module, the terms and conditions of the license of that module. An independent module is a module which is not derived from or based on this library. If you modify this library, you may extend this exception to your version of the library, but you are not obligated to do so. If you do not wish to do so, delete this exception statement from your version.