BasicTreeUI.TreeTraverseAction (Java Platform SE 8 ) (original) (raw)

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

     * ### Fields inherited from class javax.swing.[AbstractAction](../../../../javax/swing/AbstractAction.html "class in javax.swing")  
     `[changeSupport](../../../../javax/swing/AbstractAction.html#changeSupport), [enabled](../../../../javax/swing/AbstractAction.html#enabled)`  
     * ### Fields inherited from interface javax.swing.[Action](../../../../javax/swing/Action.html "interface in javax.swing")  
     `[ACCELERATOR_KEY](../../../../javax/swing/Action.html#ACCELERATOR%5FKEY), [ACTION_COMMAND_KEY](../../../../javax/swing/Action.html#ACTION%5FCOMMAND%5FKEY), [DEFAULT](../../../../javax/swing/Action.html#DEFAULT), [DISPLAYED_MNEMONIC_INDEX_KEY](../../../../javax/swing/Action.html#DISPLAYED%5FMNEMONIC%5FINDEX%5FKEY), [LARGE_ICON_KEY](../../../../javax/swing/Action.html#LARGE%5FICON%5FKEY), [LONG_DESCRIPTION](../../../../javax/swing/Action.html#LONG%5FDESCRIPTION), [MNEMONIC_KEY](../../../../javax/swing/Action.html#MNEMONIC%5FKEY), [NAME](../../../../javax/swing/Action.html#NAME), [SELECTED_KEY](../../../../javax/swing/Action.html#SELECTED%5FKEY), [SHORT_DESCRIPTION](../../../../javax/swing/Action.html#SHORT%5FDESCRIPTION), [SMALL_ICON](../../../../javax/swing/Action.html#SMALL%5FICON)`  

  • Constructor Summary

  Constructors

  Constructor	Description
  TreeTraverseAction(int direction,String name)

  • Method Summary

  All Methods Instance Methods Concrete Methods

  Modifier and Type	Method	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](../../../../javax/swing/AbstractAction.html "class in javax.swing")  
     `[addPropertyChangeListener](../../../../javax/swing/AbstractAction.html#addPropertyChangeListener-java.beans.PropertyChangeListener-), [clone](../../../../javax/swing/AbstractAction.html#clone--), [firePropertyChange](../../../../javax/swing/AbstractAction.html#firePropertyChange-java.lang.String-java.lang.Object-java.lang.Object-), [getKeys](../../../../javax/swing/AbstractAction.html#getKeys--), [getPropertyChangeListeners](../../../../javax/swing/AbstractAction.html#getPropertyChangeListeners--), [getValue](../../../../javax/swing/AbstractAction.html#getValue-java.lang.String-), [putValue](../../../../javax/swing/AbstractAction.html#putValue-java.lang.String-java.lang.Object-), [removePropertyChangeListener](../../../../javax/swing/AbstractAction.html#removePropertyChangeListener-java.beans.PropertyChangeListener-), [setEnabled](../../../../javax/swing/AbstractAction.html#setEnabled-boolean-)`  
     * ### Methods inherited from class java.lang.[Object](../../../../java/lang/Object.html "class in java.lang")  
     `[equals](../../../../java/lang/Object.html#equals-java.lang.Object-), [finalize](../../../../java/lang/Object.html#finalize--), [getClass](../../../../java/lang/Object.html#getClass--), [hashCode](../../../../java/lang/Object.html#hashCode--), [notify](../../../../java/lang/Object.html#notify--), [notifyAll](../../../../java/lang/Object.html#notifyAll--), [toString](../../../../java/lang/Object.html#toString--), [wait](../../../../java/lang/Object.html#wait--), [wait](../../../../java/lang/Object.html#wait-long-), [wait](../../../../java/lang/Object.html#wait-long-int-)`

• • Field Detail

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

  • Constructor Detail

    * #### TreeTraverseAction  
    public TreeTraverseAction(int direction,  
                              [String](../../../../java/lang/String.html "class in java.lang") name)  

  • Method Detail

    * #### actionPerformed  
    public void actionPerformed([ActionEvent](../../../../java/awt/event/ActionEvent.html "class in java.awt.event") e)  
    Invoked when an action occurs.  
    * #### isEnabled  
    public boolean isEnabled()  
    Returns true if the action is enabled.  
    Specified by:  
    `[isEnabled](../../../../javax/swing/Action.html#isEnabled--)` in interface `[Action](../../../../javax/swing/Action.html "interface in javax.swing")`  
    Overrides:  
    `[isEnabled](../../../../javax/swing/AbstractAction.html#isEnabled--)` in class `[AbstractAction](../../../../javax/swing/AbstractAction.html "class in javax.swing")`  
    Returns:  
    true if the action is enabled, false otherwise  
    See Also:  
    [Action.isEnabled()](../../../../javax/swing/Action.html#isEnabled--)

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