Control.cpp

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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
 */

#include <iostream>

#include "pbd/stacktrace.h"

#include "evoral/Control.hpp"
#include "evoral/ControlList.hpp"
#include "evoral/ParameterDescriptor.hpp"
#include "evoral/TypeMap.hpp"

namespace Evoral {

Control::Control(const Parameter&               parameter,
                 const ParameterDescriptor&     desc,
                 boost::shared_ptr<ControlList> list)
        : _parameter(parameter)
        , _user_value(list ? list->default_value() : desc.normal)
{
        set_list (list);
}


double
Control::get_double (bool from_list, double frame) const
{
        if (from_list) {
                return _list->eval(frame);
        } else {
                return _user_value;
        }
}


void
Control::set_double (double value, double frame, bool to_list)
{
        _user_value = value;
        
        /* if we're in a write pass, the automation watcher will determine the
           values and add them to the list, so we we don't need to bother.
        */

        if (to_list && (!_list->in_write_pass() || _list->descriptor().toggled)) {
                _list->add (frame, value, false);
        }
}


void
Control::set_list(boost::shared_ptr<ControlList> list)
{
        _list_marked_dirty_connection.disconnect ();
        
        _list = list;

        if (_list) {
                _list->Dirty.connect_same_thread (_list_marked_dirty_connection, boost::bind (&Control::list_marked_dirty, this));
        }
}

void
Control::list_marked_dirty ()
{
        ListMarkedDirty (); /* EMIT SIGNAL */
}

} // namespace Evoral