/*
  Copyright (C) 2016 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.
*/

#ifndef __libardour_control_group_member_h__
#define __libardour_control_group_member_h__

namespace ARDOUR {

class ControlGroup;

class LIBARDOUR_API ControlGroupMember
{
  public:
	virtual ~ControlGroupMember () {};
  private:
	friend class ControlGroup;
	/* Only a ControlGroup can call this; all membership changes must be
	   mediated by the ControlGroup, not by operating on the member.
	*/
	virtual void set_group (boost::shared_ptr<ControlGroup>) = 0;
};

} /* namespace */

#endif /* __libardour_control_group_member_h__ */