java.lang.Object
- javax.swing.undo.AbstractUndoableEdit
- - javax.swing.undo.CompoundEdit
  - - javax.swing.undo.UndoManager
    - - org.fife.ui.rtextarea.RUndoManager

All Implemented Interfaces:

Serializable, EventListener, UndoableEditListener, UndoableEdit
```
public class RUndoManager
extends UndoManager
```
This class manages undos/redos for a particular editor pane. It groups all undos that occur one character position apart together, to avoid Java's horrible "one character at a time" undo behavior. It also recognizes "replace" actions (i.e., text is selected, then the user types), and treats it as a single action, instead of a remove/insert action pair.

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

Constructors
Constructor Description

RUndoManager(RTextArea textArea)
Constructor.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`beginInternalAtomicEdit()`	Begins an "atomic" edit.
`void`	`endInternalAtomicEdit()`	Ends an "atomic" edit.
`String`	`getCantRedoText()`	Returns the localized "Can't Redo" string.
`String`	`getCantUndoText()`	Returns the localized "Can't Undo" string.
`void`	`redo()`
`void`	`undo()`
`void`	`undoableEditHappened(UndoableEditEvent e)`
`void`	`updateActions()`	Ensures that undo/redo actions are enabled appropriately and have descriptive text at all times.

Methods inherited from class javax.swing.undo.UndoManager
addEdit, canRedo, canUndo, 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
  - RUndoManager
```
public RUndoManager(RTextArea textArea)
```
    Constructor.
    
    Parameters:
    
    textArea - The parent text area.
- Method Detail
  - beginInternalAtomicEdit
```
public void beginInternalAtomicEdit()
```
    Begins an "atomic" edit. This method is called when RTextArea KNOWS that some edits should be compound automatically, such as when the user is typing in overwrite mode (the deletion of the current char + insertion of the new one) or the playing back of a macro.
    
    See Also:
    
    endInternalAtomicEdit()
  - endInternalAtomicEdit
```
public void endInternalAtomicEdit()
```
    Ends an "atomic" edit.
    
    See Also:
    
    beginInternalAtomicEdit()
  - getCantRedoText
```
public String getCantRedoText()
```
    Returns the localized "Can't Redo" string.
    
    Returns:
    
    The localized "Can't Redo" string.
    
    See Also:
    
    getCantUndoText()
  - getCantUndoText
```
public String getCantUndoText()
```
    Returns the localized "Can't Undo" string.
    
    Returns:
    
    The localized "Can't Undo" string.
    
    See Also:
    
    getCantRedoText()
  - redo
```
public void redo()
          throws CannotRedoException
```
    Specified by:
    
    redo in interface UndoableEdit
    
    Overrides:
    
    redo in class UndoManager
    
    Throws:
    
    CannotRedoException
  - undo
```
public void undo()
          throws CannotUndoException
```
    Specified by:
    
    undo in interface UndoableEdit
    
    Overrides:
    
    undo in class UndoManager
    
    Throws:
    
    CannotUndoException
  - undoableEditHappened
```
public void undoableEditHappened(UndoableEditEvent e)
```
    Specified by:
    
    undoableEditHappened in interface UndoableEditListener
    
    Overrides:
    
    undoableEditHappened in class UndoManager
  - updateActions
```
public void updateActions()
```
    Ensures that undo/redo actions are enabled appropriately and have descriptive text at all times.

Class RUndoManager

Field Summary

Fields inherited from class javax.swing.undo.CompoundEdit

Fields inherited from class javax.swing.undo.AbstractUndoableEdit

Constructor Summary

Method Summary

Methods inherited from class javax.swing.undo.UndoManager

Methods inherited from class javax.swing.undo.CompoundEdit

Methods inherited from class javax.swing.undo.AbstractUndoableEdit

Methods inherited from class java.lang.Object

Constructor Detail

RUndoManager

Method Detail

beginInternalAtomicEdit

endInternalAtomicEdit

getCantRedoText

getCantUndoText

redo

undo

undoableEditHappened

updateActions