| Class | Description | |
|---|---|---|
 | AnnotationViewCollectionUndoAction | Undo action that stores information about changes in AnnotationViewCollection object. |
| AnnotationViewCollectionUndoMonitor | Undo monitor that monitors the AnnotationViewCollection object and adds undo action to an undo manager if AnnotationViewCollection is changed. |
| AnnotationViewerUndoMonitor | Undo monitor that monitors the AnnotationViewer object and adds undo action to an undo manager if AnnotationViewCollection is changed. |
| AnnotationViewUndoAction | Undo action that stores information about changes in AnnotationView object. |
| AnnotationViewUndoMonitor | Undo monitor that monitors the AnnotationView object and adds undo action to an undo manager if AnnotationView is changed. |
| AnnotationVisualToolUndoMonitor | The undo monitor that monitors the AnnotationVisualTool object and adds CompositeUndoAction to an undo manager if AnnotationVisualTool added an annotation. |