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/* This file is part of Evoral.
* Copyright (C) 2008 Dave 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 <evoral/Control.hpp>
#include <evoral/ControlList.hpp>
namespace Evoral {
Parameter::TypeMetadata Parameter::_type_metadata;
Control::Control(boost::shared_ptr<ControlList> list)
: _list(list)
, _user_value(list->default_value())
{
}
/** Get the currently effective value (ie the one that corresponds to current output)
*/
float
Control::get_value(bool from_list, nframes_t frame) const
{
if (from_list)
return _list->eval(frame);
else
return _user_value;
}
void
Control::set_value(float value, bool to_list, nframes_t frame)
{
_user_value = value;
if (to_list)
_list->add(frame, value);
}
/** Get the latest user-set value, which may not equal get_value() when automation
* is playing back, etc.
*
* Automation write/touch works by periodically sampling this value and adding it
* to the AutomationList.
*/
float
Control::user_value() const
{
return _user_value;
}
void
Control::set_list(boost::shared_ptr<ControlList> list)
{
_list = list;
_user_value = list->default_value();
}
const Parameter&
Control::parameter() const
{
return _list->parameter();
}
} // namespace Evoral
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