gov.nih.nlm.mms
Class UndoAction

java.lang.Object
  javax.swing.AbstractAction
      gov.nih.nlm.mms.UndoAction

All Implemented Interfaces:

ActionListener, Serializable, Cloneable, EventListener, Action

public class UndoAction
extends AbstractAction

Unperforms an action. Used for the Edit->Undo Menu of MetamorphoSysGUI.

Author:

Brian Carlsen, Deborah Shapiro

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(MetamorphoSysGUI gui)
Instantiates an UndoAction.

Method Summary

void	actionPerformed(ActionEvent e) Pops an item off of the undo stack, makes the necessary changes, and pushes an item onto the redo stack.

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(MetamorphoSysGUI gui)

Instantiates an UndoAction.

Parameters:

gui - the MetamorphoSysGUI

Method Detail

actionPerformed

public void actionPerformed(ActionEvent e)

Pops an item off of the undo stack, makes the necessary changes, and pushes an item onto the redo stack.

Parameters:

e - an ActionEvent