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git-svn-id: svn://localhost/ardour2/branches/3.0@6678 d708f5d6-7413-0410-9779-e7cbd77b26cf
55 lines
1.6 KiB
C++
55 lines
1.6 KiB
C++
/*
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Copyright (C) 2010 Paul Davis
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef __pbd_stateful_diff_command_h__
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#define __pbd_stateful_diff_command_h__
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#include <boost/shared_ptr.hpp>
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#include <boost/weak_ptr.hpp>
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#include "pbd/command.h"
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namespace PBD
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{
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class Stateful;
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/** A Command which stores its action as the differences between the before and after
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* state of a Stateful object.
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*/
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class StatefulDiffCommand : public Command
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{
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public:
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StatefulDiffCommand (boost::shared_ptr<Stateful>);
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StatefulDiffCommand (boost::shared_ptr<Stateful>, XMLNode const &);
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~StatefulDiffCommand ();
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void operator() ();
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void undo ();
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XMLNode& get_state ();
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private:
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boost::weak_ptr<Stateful> _object; ///< the object in question
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XMLNode* _before; ///< XML node containing the previous values of XML properties which changed
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XMLNode* _after; ///< XML node containing the new values of XML properties which changed
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};
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};
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#endif /* __pbd_stateful_diff_command_h__ */
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