BasicTreeUI.TreeTraverseAction

javax.swing.plaf.basic

Class BasicTreeUI.TreeTraverseAction

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

All Implemented Interfaces:

ActionListener, Serializable, Cloneable, EventListener, Action

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

Fields

Modifier and Type	Field and Description
`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, DISPLAYED_MNEMONIC_INDEX_KEY, LARGE_ICON_KEY, LONG_DESCRIPTION, MNEMONIC_KEY, NAME, SELECTED_KEY, SHORT_DESCRIPTION, SMALL_ICON

Constructor Summary

Constructors

Constructor and Description
`TreeTraverseAction(int direction, String name)`

Method Summary

All Methods

Instance Methods

Concrete Methods
Modifier and Type	Method and Description
`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
  - TreeTraverseAction
```
public 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()