Constructor Detail

• public TextUndoManager()

  Creates a new instance of TextUndoManager.

Method Detail

• public void addPropertyChangeListener(PropertyChangeListener pcl)

  Registers a listener for undo/redo state changes.

  Parameters:

  pcl - the listener to add

• public void die()

  {@inheritDoc}

• public void discardAllEdits()

  {@inheritDoc}

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

  Fires an undo-state property change event.

  Parameters:

  name - the property name

  oldValue - the previous value

  newValue - the new value

• public boolean hasChanged()

  Indicates whether the document differs from the last reset point.

  Returns:

  true if undo history contains unreset edits

• public void redo()

  {@inheritDoc}

• protected void redoTo(UndoableEdit edit)

  {@inheritDoc}

• public void removePropertyChangeListener(PropertyChangeListener pcl)

  Removes a listener for undo/redo state changes.

  Parameters:

  pcl - the listener to remove

• public void reset()

  Marks the current undo position as the unmodified state.

• public void setRecording(boolean recording)

  Toggle recording of undoable edits. Used to suppress capture of programmatic style changes (e.g. a theme switch re-parsing the document) that shouldn't be reachable via user-initiated Undo.

  Since:

  6.0.0

• protected void trimEdits(int from, int to)

  {@inheritDoc}

• public void undo()

  {@inheritDoc}

• public void undoableEditHappened(UndoableEditEvent uee)

  {@inheritDoc}