## groovy.ui.text
Class TextUndoManager

    java.lang.Object
      javax.swing.undo.AbstractUndoableEdit
          javax.swing.undo.CompoundEdit
              javax.swing.undo.UndoManager
                  groovy.ui.text.TextUndoManager

All Implemented Interfaces:
  Serializable, EventListener, UndoableEditListener, UndoableEdit

    public class TextUndoManager

extends UndoManager

To use this, simply drop this as an UndoableEditListener into your document, and then create actions to call undo/redo as needed (checking can undo/redo first, of course).

Author:
  Evan "Hippy" Slatis
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
`TextUndoManager()` Creates a new instance of TextUndoManager.

Method Summary
`void` `addPropertyChangeListener(PropertyChangeListener pcl)`
`void` `die()`
`void` `discardAllEdits()`
`protected void` `firePropertyChangeEvent(String name, boolean oldValue, boolean newValue)`
`boolean` `hasChanged()`
`void` `redo()`
`protected void` `redoTo(UndoableEdit edit)`
`void` `removePropertyChangeListener(PropertyChangeListener pcl)`
`void` `reset()`
`protected void` `trimEdits(int from, int to)`
`void` `undo()`
`void` `undoableEditHappened(UndoableEditEvent uee)`

Methods inherited from class javax.swing.undo.UndoManager
`addEdit, canRedo, canUndo, canUndoOrRedo, editToBeRedone, editToBeUndone, end, getLimit, getRedoPresentationName, getUndoOrRedoPresentationName, getUndoPresentationName, setLimit, toString, trimForLimit, undoOrRedo, undoTo`

Methods inherited from class javax.swing.undo.CompoundEdit
`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

### TextUndoManager

    public TextUndoManager()

  Creates a new instance of TextUndoManager.

Method Detail

### addPropertyChangeListener

    public void addPropertyChangeListener(PropertyChangeListener pcl)

### die

    public void die()

  Specified by:
    `die` in interface `UndoableEdit`
  Overrides:
    `die` in class `CompoundEdit`

### discardAllEdits

    public void discardAllEdits()

  Overrides:
    `discardAllEdits` in class `UndoManager`

### firePropertyChangeEvent

    protected void firePropertyChangeEvent(String name,
                                           boolean oldValue,
                                           boolean newValue)

### hasChanged

    public boolean hasChanged()

### redo

    public void redo()
              throws CannotRedoException

  Specified by:
    `redo` in interface `UndoableEdit`
  Overrides:
    `redo` in class `UndoManager`
  Throws:
    `CannotRedoException`

### redoTo

    protected void redoTo(UndoableEdit edit)

  Overrides:
    `redoTo` in class `UndoManager`

### removePropertyChangeListener

    public void removePropertyChangeListener(PropertyChangeListener pcl)

### reset

    public void reset()

### trimEdits

    protected void trimEdits(int from,
                             int to)

  Overrides:
    `trimEdits` in class `UndoManager`

### undo

    public void undo()
              throws CannotUndoException

  Specified by:
    `undo` in interface `UndoableEdit`
  Overrides:
    `undo` in class `UndoManager`
  Throws:
    `CannotUndoException`

### undoableEditHappened

    public void undoableEditHappened(UndoableEditEvent uee)

  Specified by:
    `undoableEditHappened` in interface `UndoableEditListener`
  Overrides:
    `undoableEditHappened` in class `UndoManager`

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