swingwtx.swing.undo
Class UndoManager

java.lang.Object
  swingwtx.swing.undo.AbstractUndoableEdit
      swingwtx.swing.undo.CompoundEdit
          swingwtx.swing.undo.UndoManager

All Implemented Interfaces:

java.util.EventListener, UndoableEdit, UndoableEditListener

public class UndoManager

extends CompoundEdit

implements UndoableEditListener

UndoManager

Field Summary

Fields inherited from class swingwtx.swing.undo.CompoundEdit

edits

Fields inherited from class swingwtx.swing.undo.AbstractUndoableEdit

RedoName, UndoName

Constructor Summary

UndoManager()

Method Summary

boolean	addEdit(UndoableEdit undoableEdit) Default implementations do nothing.
boolean	canRedo()
boolean	canUndo()
boolean	canUndoOrRedo()
void	discardAllEdits() Remove all the edits tracked by this UndoManager
protected UndoableEdit	editToBeRedone() Returns the most recent significant UndoableEdit that can be redone
protected UndoableEdit	editToBeUndone() Returns the most recent significant UndoableEdit that can be undone
void	end()
int	getLimit()
java.lang.String	getRedoPresentationName()
java.lang.String	getUndoOrRedoPresentationName()
java.lang.String	getUndoPresentationName()
void	redo()
protected void	redoTo(UndoableEdit undoableEdit)
void	setLimit(int limit)
protected void	trimEdits(int from, int to)
protected void	trimForLimit()
void	undo()
void	undoableEditHappened(UndoableEditEvent undoableEditEvent)
void	undoOrRedo()
protected void	undoTo(UndoableEdit undoableEdit)

Methods inherited from class swingwtx.swing.undo.CompoundEdit

die, getPresentationName, isInProgress, isSignificant, lastEdit

Methods inherited from class swingwtx.swing.undo.AbstractUndoableEdit

replaceEdit

Methods inherited from class java.lang.Object

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

Constructor Detail

UndoManager

public UndoManager()

Method Detail

setLimit

public void setLimit(int limit)

getLimit

public int getLimit()

discardAllEdits

public void discardAllEdits()

Remove all the edits tracked by this UndoManager

undoTo

protected void undoTo(UndoableEdit undoableEdit)
               throws CannotUndoException

Throws:

CannotUndoException

undo

public void undo()
          throws CannotUndoException

Specified by:

undo in interface UndoableEdit

Overrides:

undo in class CompoundEdit

Throws:

CannotUndoException

redoTo

protected void redoTo(UndoableEdit undoableEdit)
               throws CannotRedoException

Throws:

CannotRedoException

redo

public void redo()
          throws CannotRedoException

Specified by:

redo in interface UndoableEdit

Overrides:

redo in class CompoundEdit

Throws:

CannotRedoException

trimEdits

protected void trimEdits(int from,
                         int to)

trimForLimit

protected void trimForLimit()

undoOrRedo

public void undoOrRedo()
                throws CannotRedoException,
                       CannotUndoException

Throws:

CannotRedoException

CannotUndoException

canUndoOrRedo

public boolean canUndoOrRedo()

canUndo

public boolean canUndo()

Specified by:

canUndo in interface UndoableEdit

Overrides:

canUndo in class CompoundEdit

canRedo

public boolean canRedo()

Specified by:

canRedo in interface UndoableEdit

Overrides:

canRedo in class CompoundEdit

addEdit

public boolean addEdit(UndoableEdit undoableEdit)

Description copied from class: AbstractUndoableEdit

Default implementations do nothing. Override in implementing classes

Specified by:

addEdit in interface UndoableEdit

Overrides:

addEdit in class CompoundEdit

end

public void end()

Overrides:

end in class CompoundEdit

getUndoOrRedoPresentationName

public java.lang.String getUndoOrRedoPresentationName()

getUndoPresentationName

public java.lang.String getUndoPresentationName()

Specified by:

getUndoPresentationName in interface UndoableEdit

Overrides:

getUndoPresentationName in class CompoundEdit

getRedoPresentationName

public java.lang.String getRedoPresentationName()

Specified by:

getRedoPresentationName in interface UndoableEdit

Overrides:

getRedoPresentationName in class CompoundEdit

undoableEditHappened

public void undoableEditHappened(UndoableEditEvent undoableEditEvent)

Specified by:

undoableEditHappened in interface UndoableEditListener

editToBeUndone

protected UndoableEdit editToBeUndone()

Returns the most recent significant UndoableEdit that can be undone

editToBeRedone

protected UndoableEdit editToBeRedone()

Returns the most recent significant UndoableEdit that can be redone