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livetrax/libs/evoral/src/Control.cpp

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2.2 KiB
C++

/* 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);
}
/** 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