2 Copyright (C) 2000-2010 Paul Davis
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 #ifndef __pbd_stateful_owner_h__
21 #define __pbd_stateful_owner_h__
27 class StatefulDiffCommand;
29 /** Base (pure virtual) class for objects with other Stateful's within */
33 virtual ~StatefulOwner () {}
35 virtual void rdiff (std::vector<StatefulDiffCommand*>& cmds) const = 0;
36 virtual void clear_owned_history () = 0;
41 #endif /* __pbd_stateful_owner_h__ */