Class BasicTreeUI.TreePageAction

java.lang.Object

javax.swing.AbstractAction

javax.swing.plaf.basic.BasicTreeUI.TreePageAction

All Implemented Interfaces:

ActionListener, Serializable, Cloneable, EventListener, Action

Enclosing class:

BasicTreeUI

public class BasicTreeUI.TreePageAction
extends AbstractAction

TreePageAction handles page up and page down events.

Field Summary

Fields

Modifier and Type	Field	Description
protected int	direction	Specifies the direction to adjust the selection by.

Fields inherited from class AbstractAction

changeSupport, enabled

Fields inherited from interface 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	Description
TreePageAction(int direction, String name)	Constructs a new instance of TreePageAction.

Method Summary

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 AbstractAction

addPropertyChangeListener, clone, firePropertyChange, getKeys, getPropertyChangeListeners, getValue, putValue, removePropertyChangeListener, setEnabled

Methods inherited from class Object

equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface Action

accept

Field Details

direction

protected int direction

Specifies the direction to adjust the selection by.

Constructor Details

TreePageAction

public TreePageAction(int direction,
 String name)

Constructs a new instance of TreePageAction.

Parameters:

direction - the direction

name - the name of action

Method Details

actionPerformed

public void actionPerformed(ActionEvent e)

Description copied from interface: ActionListener

Invoked when an action occurs.

Parameters:

e - the event to be processed

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()