Class 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.

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

Constructors

Constructor and Description
TreeTraverseAction(int direction, String name)

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

Fields

direction

protected int direction

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

Constructors

TreeTraverseAction

public TreeTraverseAction(int direction,
                          String name)

Methods

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()

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https://docs.oracle.com/javase/8/docs/api/javax/swing/plaf/basic/BasicTreeUI.TreeTraverseAction.html