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Sourcecode: ardour version File versions

stateful.h

/*
    Copyright (C) 2000 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: stateful.h,v 1.8 2004/11/29 03:04:46 pauld Exp $
*/

#ifndef __ardour_stateful_h__
#define __ardour_stateful_h__

#include <string>

class XMLNode;

class Stateful {
  public:
      Stateful();

      virtual XMLNode& get_state (void) = 0;

      virtual int set_state (const XMLNode&) = 0;

      /* Extra XML nodes */

      void add_extra_xml (XMLNode&);
      XMLNode *extra_xml (const std::string& str);

      virtual void add_instant_xml (XMLNode&, const std::string& dir);
      XMLNode *instant_xml (const std::string& str, const std::string& dir);

  protected:
      XMLNode *_extra_xml;
      XMLNode *_instant_xml;
};

#endif /* __ardour_stateful_h__ */


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