com.anthonyeden.lib.gui
Class UndoAction

java.lang.Object
  javax.swing.AbstractAction
      com.anthonyeden.lib.gui.UndoAction

All Implemented Interfaces:

javax.swing.Action, java.awt.event.ActionListener, java.lang.Cloneable, java.util.EventListener, java.io.Serializable

public class UndoAction

extends javax.swing.AbstractAction

A UI action for undo.

Author:

Anthony Eden

See Also:

Serialized Form

Field Summary

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

UndoAction(javax.swing.undo.UndoManager undoManager)
Construct a new RedoAction which uses the given UndoManager for managing undos and redos.

Method Summary

void	actionPerformed(java.awt.event.ActionEvent e) Invoked when an ActionEvent occurs.
void	executeUndo() Execute the undo.
void	setRedoAction(RedoAction redoAction) Set the redo action.
void	updateUndoState() Update the undo state in the UndoManager.

Methods inherited from class javax.swing.AbstractAction

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

Methods inherited from class java.lang.Object

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

Constructor Detail

UndoAction

public UndoAction(javax.swing.undo.UndoManager undoManager)

Construct a new RedoAction which uses the given UndoManager for managing undos and redos.

Parameters:

undoManager - The UndoManager

Method Detail

setRedoAction

public void setRedoAction(RedoAction redoAction)

Set the redo action. Setting the redo action will allow the undo action to tell the redo action to update its state when an undo occurs.

Parameters:

redoAction - The redo action

executeUndo

public void executeUndo()

Execute the undo. This method is typically invoked when the Action is triggered. It may also be used programatically.

actionPerformed

public void actionPerformed(java.awt.event.ActionEvent e)

Invoked when an ActionEvent occurs.

Parameters:

e - The ActionEvent

updateUndoState

public void updateUndoState()

Update the undo state in the UndoManager.