Undo node for UndoManager. More...
Inheritance diagram for Laxkit::UndoData:
Public Member Functions | |
| virtual | ~UndoData () |
| virtual int | isUndoable () |
| virtual int | isRedoable () |
| virtual const char * | Description ()=0 |
Public Attributes | |
| Undoable * | context |
| anObject * | data |
| clock_t | time |
| int | direction |
| int | isauto |
| UndoData * | prev |
| UndoData * | next |
Detailed Description
Undo node for UndoManager.
Objects classed from this will be passed to Undoable objects to either undo or redo. If direction is 1, then the item is undoable, else 2 is redoable.
Subclasses must provide enough information to either redo OR undo, otherwise modify the data to reflect what must be done after Undoable::Undo() or Redo() is called.
Constructor & Destructor Documentation
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virtual |
If prev==NULL, then delete next, else just remove *this from chain.
The documentation for this class was generated from the following files:
- undo.h
- undo.cc