Java(TM) 2 Platform, Standard Edition, v1.2.2 API Specification: Class BasicTreeUI.TreeTraverseAction - JDK 5 Documentation v1.2.2, Java 2 SDK 英文文档

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Java^TM 2 Platform
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javax.swing.plaf.basic
Class BasicTreeUI.TreeTraverseAction

java.lang.Object
  |
  +--javax.swing.AbstractAction
        |
        +--javax.swing.plaf.basic.BasicTreeUI.TreeTraverseAction

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.

See Also:: Serialized Form

Field Summary

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

Fields inherited from class javax.swing.AbstractAction

changeSupport, enabled

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, 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.

Overrides:: isEnabled in class AbstractAction

Tags copied from class: AbstractAction

Returns:: true if the action is enabled
See Also:: Action.isEnabled()