mixer_scene.h

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/*
 * Copyright (C) 2022 Robin Gareus <robin@gareus.org>
 *
 * 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.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
 
#ifndef _libardour_mixer_scene_h_
#define _libardour_mixer_scene_h_
 
#include "pbd/stateful.h"
 
#include "ardour/libardour_visibility.h"
#include "ardour/session_handle.h"
#include "ardour/types.h"
 
namespace PBD {
        class Controllable;
}
 
namespace ARDOUR {
 
class LIBARDOUR_API MixerScene : public SessionHandleRef, public PBD::Stateful
{
public:
        MixerScene (Session&);
        ~MixerScene ();
 
        void snapshot ();
        bool apply () const;
        bool apply (PBD::ControllableSet const&, AutomationTypeSet const& ts = AutomationTypeSet()) const;
        void clear ();
        bool empty () const { return _ctrl_map.empty (); }
 
        std::string name () const { return _name; }
        bool        set_name (std::string const& name);
 
        XMLNode& get_state () const;
        int set_state (XMLNode const&, int version);
 
        static PBD::Signal0<void> Change;
 
private:
        typedef std::map<PBD::ID, double> ControllableValueMap;
 
        bool recurse_to_master (std::shared_ptr<PBD::Controllable>, std::set <PBD::ID>&, AutomationTypeSet const&) const;
 
        ControllableValueMap       _ctrl_map;
        std::string                _name;
};
 
}
 
#endif