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livetrax/libs/evoral/ControlSet.cc

116 lines
3.1 KiB
C++

/*
* Copyright (C) 2008-2014 David Robillard <d@drobilla.net>
* Copyright (C) 2010-2018 Paul Davis <paul@linuxaudiosystems.com>
* Copyright (C) 2010 Carl Hetherington <carl@carlh.net>
*
* 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 <limits>
#include "evoral/ControlSet.h"
#include "evoral/ControlList.h"
#include "evoral/Control.h"
#include "evoral/Event.h"
using namespace std;
namespace Evoral {
ControlSet::ControlSet ()
{
}
ControlSet::ControlSet (ControlSet const & other)
: noncopyable ()
{
/* derived class must copy controls */
}
void
ControlSet::add_control(boost::shared_ptr<Control> ac)
{
_controls[ac->parameter()] = ac;
ac->ListMarkedDirty.connect_same_thread (_control_connections, boost::bind (&ControlSet::control_list_marked_dirty, this));
if (ac->list()) {
ac->list()->InterpolationChanged.connect_same_thread (
_list_connections,
boost::bind (&ControlSet::control_list_interpolation_changed,
this, ac->parameter(), _1));
}
}
void
ControlSet::what_has_data (set<Parameter>& s) const
{
Glib::Threads::Mutex::Lock lm (_control_lock);
for (Controls::const_iterator li = _controls.begin(); li != _controls.end(); ++li) {
if (li->second->list() && !li->second->list()->empty()) {
s.insert (li->first);
}
}
}
/** If a control for the given parameter does not exist and \a create_if_missing is true,
* a control will be created, added to this set, and returned.
* If \a create_if_missing is false this function may return null.
*/
boost::shared_ptr<Control>
ControlSet::control (const Parameter& parameter, bool create_if_missing)
{
Controls::iterator i = _controls.find(parameter);
if (i != _controls.end()) {
return i->second;
} else if (create_if_missing) {
boost::shared_ptr<Control> ac(control_factory(parameter));
add_control(ac);
return ac;
} else {
return boost::shared_ptr<Control>();
}
}
void
ControlSet::clear_controls ()
{
Glib::Threads::Mutex::Lock lm (_control_lock);
_control_connections.drop_connections ();
_list_connections.drop_connections ();
for (Controls::iterator li = _controls.begin(); li != _controls.end(); ++li) {
if (li->second->list()) {
li->second->list()->clear();
}
}
}
} // namespace Evoral
/* No good place for this so just put it here */
std::ostream&
std::operator<< (std::ostream & str, Evoral::Parameter const & p)
{
return str << p.type() << '-' << p.id() << '-' << (int) p.channel();
}