Control.hpp

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/* This file is part of Evoral.
 * Copyright (C) 2008 David Robillard <http://drobilla.net>
 * Copyright (C) 2000-2008 Paul Davis
 *
 * Evoral 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.
 *
 * Evoral 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 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 St, Fifth Floor, Boston, MA 02110-1301 USA
 */

#ifndef EVORAL_CONTROL_HPP
#define EVORAL_CONTROL_HPP

#include <set>
#include <map>
#include <boost/shared_ptr.hpp>
#include "pbd/signals.h"

#include "evoral/visibility.h"
#include "evoral/Parameter.hpp"
#include "evoral/ParameterDescriptor.hpp"

namespace Evoral {

class ControlList;
class ParameterDescriptor;
class Transport;
class TypeMap;

class LIBEVORAL_API Control
{
public:
        Control(const Parameter&               parameter,
                const ParameterDescriptor&     desc,
                boost::shared_ptr<ControlList> list);

        virtual ~Control() {}

        virtual void   set_double (double val, double frame=0, bool to_list=false);
        virtual double get_double (bool from_list=false, double frame=0) const;

        double user_double() const { return _user_value; }

        void set_list(boost::shared_ptr<ControlList>);

        boost::shared_ptr<ControlList>       list()       { return _list; }
        boost::shared_ptr<const ControlList> list() const { return _list; }

        inline const Parameter& parameter() const { return _parameter; }

        PBD::Signal0<void> ListMarkedDirty;

protected:
        Parameter                      _parameter;
        boost::shared_ptr<ControlList> _list;
        double                         _user_value;
        PBD::ScopedConnection          _list_marked_dirty_connection;

private:
        void list_marked_dirty ();
};

} // namespace Evoral

#endif // EVORAL_CONTROL_HPP