2 Copyright (C) 2006 Paul Davis
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 #ifndef __lib_pbd_command_h__
22 #define __lib_pbd_command_h__
24 #include "pbd/statefuldestructible.h"
25 #include <boost/utility.hpp>
27 class Command : public PBD::StatefulDestructible, public boost::noncopyable
30 virtual ~Command() { /* NOTE: derived classes must call drop_references() */ }
32 virtual void operator() () = 0;
34 void set_name (const std::string& str) { _name = str; }
35 const std::string& name() const { return _name; }
37 virtual void undo() = 0;
38 virtual void redo() { (*this)(); }
40 virtual XMLNode &get_state();
41 virtual int set_state(const XMLNode&, int /*version*/) { /* noop */ return 0; }
45 Command(const std::string& name) : _name(name) {}
50 #endif // __lib_pbd_command_h_