org.pietschy.command.undo
Class UndoContext

java.lang.Object
  javax.swing.undo.AbstractUndoableEdit
      javax.swing.undo.CompoundEdit
          javax.swing.undo.UndoManager
              org.pietschy.command.undo.UndoContext

All Implemented Interfaces:

java.io.Serializable, java.util.EventListener, javax.swing.event.UndoableEditListener, javax.swing.undo.UndoableEdit

public class UndoContext
extends javax.swing.undo.UndoManager
implements javax.swing.event.UndoableEditListener

UndoContext extends UndoManager to provide state change notifications to listners.

Version:

$Revision: 1.4 $

Author:

andrewp

See Also:

Serialized Form

Field Summary

Fields inherited from class javax.swing.undo.CompoundEdit

edits

Fields inherited from class javax.swing.undo.AbstractUndoableEdit

RedoName, UndoName

Constructor Summary

UndoContext()

Method Summary

void	addChangeListener(javax.swing.event.ChangeListener l)
boolean	addEdit(javax.swing.undo.UndoableEdit anEdit)
boolean	canRedo()
boolean	canUndo()
void	fireStateChaged()
void	redo()
void	removeChangeListener(javax.swing.event.ChangeListener l)
void	undo()
void	undoableEditHappened(javax.swing.event.UndoableEditEvent e)

Methods inherited from class javax.swing.undo.UndoManager

canUndoOrRedo, discardAllEdits, editToBeRedone, editToBeUndone, end, getLimit, getRedoPresentationName, getUndoOrRedoPresentationName, getUndoPresentationName, redoTo, setLimit, toString, trimEdits, trimForLimit, undoOrRedo, undoTo

Methods inherited from class javax.swing.undo.CompoundEdit

die, getPresentationName, isInProgress, isSignificant, lastEdit

Methods inherited from class javax.swing.undo.AbstractUndoableEdit

replaceEdit

Methods inherited from class java.lang.Object

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

Constructor Detail

UndoContext

public UndoContext()

Method Detail

addEdit

public boolean addEdit(javax.swing.undo.UndoableEdit anEdit)

Specified by:

addEdit in interface javax.swing.undo.UndoableEdit

Overrides:

addEdit in class javax.swing.undo.UndoManager

undoableEditHappened

public void undoableEditHappened(javax.swing.event.UndoableEditEvent e)

Specified by:

undoableEditHappened in interface javax.swing.event.UndoableEditListener

Overrides:

undoableEditHappened in class javax.swing.undo.UndoManager

undo

public void undo()

Specified by:

undo in interface javax.swing.undo.UndoableEdit

Overrides:

undo in class javax.swing.undo.UndoManager

redo

public void redo()

Specified by:

redo in interface javax.swing.undo.UndoableEdit

Overrides:

redo in class javax.swing.undo.UndoManager

canUndo

public boolean canUndo()

Specified by:

canUndo in interface javax.swing.undo.UndoableEdit

Overrides:

canUndo in class javax.swing.undo.UndoManager

canRedo

public boolean canRedo()

Specified by:

canRedo in interface javax.swing.undo.UndoableEdit

Overrides:

canRedo in class javax.swing.undo.UndoManager

fireStateChaged

public void fireStateChaged()

addChangeListener

public void addChangeListener(javax.swing.event.ChangeListener l)

removeChangeListener

public void removeChangeListener(javax.swing.event.ChangeListener l)