javax.swing.plaf.basic
Class BasicTreeUI.TreeIncrementAction

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

public class BasicTreeUI.TreeIncrementAction
extends AbstractAction

TreeIncrementAction is used to handle up/down actions. Selection is moved up or down based on direction.

See Also:
Serialized Form

Field Summary
protected  int direction
          Specifies the direction to adjust the selection by.
 
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.TreeIncrementAction(int dir, String name)
          Creates a new TreeIncrementAction.
 
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
Specifies the direction to adjust the selection by.

Constructor Detail

BasicTreeUI.TreeIncrementAction

public BasicTreeUI.TreeIncrementAction(int dir,
                                       String name)
Creates a new TreeIncrementAction.

Parameters:
dir - up or down, -1 for up, 1 for down
name - is the name of the direction
Method Detail

actionPerformed

public void actionPerformed(ActionEvent e)
Invoked when an action occurs.

Parameters:
e - is the event that occured

isEnabled

public boolean isEnabled()
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.
See Also:
AbstractAction.setEnabled(boolean)