JavaTM 2 Platform
Std. Ed. v1.4.2

javax.swing.plaf.basic
Class BasicTreeUI.TreeTraverseAction

java.lang.Object
  extended byjavax.swing.AbstractAction
      extended byjavax.swing.plaf.basic.BasicTreeUI.TreeTraverseAction
All Implemented Interfaces:
Action, ActionListener, Cloneable, EventListener, Serializable
Enclosing class:
BasicTreeUI

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.


Field Summary
protected  int direction
          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
ACCELERATOR_KEY, ACTION_COMMAND_KEY, DEFAULT, LONG_DESCRIPTION, MNEMONIC_KEY, NAME, SHORT_DESCRIPTION, SMALL_ICON
 
Constructor Summary
BasicTreeUI.TreeTraverseAction(int direction, String name)
           
 
Method Summary
 void actionPerformed(ActionEvent e)
          Invoked when an action occurs.
 boolean isEnabled()
          Returns true if the action is enabled.
 
Methods inherited from class javax.swing.AbstractAction
addPropertyChangeListener, clone, firePropertyChange, getKeys, getPropertyChangeListeners, getValue, putValue, removePropertyChangeListener, setEnabled
 
Methods inherited from class java.lang.Object
equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

direction

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

Constructor Detail

BasicTreeUI.TreeTraverseAction

public BasicTreeUI.TreeTraverseAction(int direction,
                                      String name)
Method Detail

actionPerformed

public void actionPerformed(ActionEvent e)
Description copied from interface: ActionListener
Invoked when an action occurs.


isEnabled

public boolean isEnabled()
Description copied from class: AbstractAction
Returns true if the action is enabled.

Specified by:
isEnabled in interface Action
Overrides:
isEnabled in class AbstractAction
Returns:
true if the action is enabled, false otherwise
See Also:
Action.isEnabled()

JavaTM 2 Platform
Std. Ed. v1.4.2

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For further API reference and developer documentation, see Java 2 SDK SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.

Copyright 2003 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy.