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livetrax/libs/pbd3/pbd/serializable.h

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r80@gandalf: fugalh | 2006-06-22 16:37:01 -0600 reworked templatization of UndoCommand git-svn-id: svn://localhost/ardour2/branches/undo@636 d708f5d6-7413-0410-9779-e7cbd77b26cf
2006-06-22 18:37:08 -04:00
/*
Copyright (C) 2006 Paul Davis
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
$Id: /local/undo/libs/pbd3/pbd/undo.h 59 2006-06-15T18:16:20.960977Z fugalh $
*/
#ifndef __lib_pbd_serializable_h__
#define __lib_pbd_serializable_h__
#include <pbd/xml++.h>
class Serializable
{
public:
r132@gandalf: fugalh | 2006-06-29 12:45:16 -0600 Coding for undo/redo starts in earnest. Paul and I decided to go with a standard gang of four Command pattern, with serialization. This overcomes the terrible difficulties we were having with static type checking and the sigc++ approach. I'm adding the requirement that each command support undo, simplifying undo/redo. NOTE that an important fallout here is that Command::operator()() is the opposite of the old UndoAction::operator()(), i.e. Command::operator()() is execute/redo, and Command::undo() is undo. This commit is a reworking of the infrastructure, and won't compile until creating Command subclasses for the various commands being performed. That is primarily where you find get_memento and/or calls to add_(undo|redo.*). git-svn-id: svn://localhost/ardour2/branches/undo@655 d708f5d6-7413-0410-9779-e7cbd77b26cf
2006-06-29 14:49:03 -04:00
virtual XMLNode &serialize() = 0;
r80@gandalf: fugalh | 2006-06-22 16:37:01 -0600 reworked templatization of UndoCommand git-svn-id: svn://localhost/ardour2/branches/undo@636 d708f5d6-7413-0410-9779-e7cbd77b26cf
2006-06-22 18:37:08 -04:00
};
#endif // __lib_pbd_serializable_h__
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