/*
    Copyright (C) 2011 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 __gtk_ardour_clock_group_h__
#define __gtk_ardour_clock_group_h__

#include <set>
#include <sigc++/signal.h>

#include "audio_clock.h"

class ClockGroup : public sigc::trackable {
  public:
        ClockGroup ();
        ~ClockGroup ();

        void set_clock_mode (AudioClock::Mode);
        AudioClock::Mode clock_mode() const { return _clock_mode; }

        void add (AudioClock&);
        void remove (AudioClock&);

  private:
        std::set<AudioClock*> clocks;
        bool ignore_changes;
        AudioClock::Mode _clock_mode;

        void one_clock_changed (AudioClock*);
};

#endif /* __gtk_ardour_clock_group_h__ */