livetrax/libs/evoral/Control.cc

/*
 * Copyright (C) 2008-2016 David Robillard <d@drobilla.net>
 * Copyright (C) 2010-2014 Paul Davis <paul@linuxaudiosystems.com>
 * Copyright (C) 2010 Carl Hetherington <carl@carlh.net>
 * Copyright (C) 2015-2017 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.
 */

#include <iostream>

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

namespace Evoral {

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


/** Get the currently effective value (ie the one that corresponds to current output)
 */
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