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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 <limits>
#include "evoral/ControlSet.hpp"
#include "evoral/ControlList.hpp"
#include "evoral/Control.hpp"
#include "evoral/Event.hpp"
using namespace std;
namespace Evoral {
ControlSet::ControlSet()
{
}
void
ControlSet::add_control(boost::shared_ptr<Control> ac)
{
_controls[ac->parameter()] = ac;
}
void
ControlSet::what_has_data (set<Parameter>& s) const
{
Glib::Mutex::Lock lm (_control_lock);
for (Controls::const_iterator li = _controls.begin(); li != _controls.end(); ++li) {
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 {
//warning << "ControlList " << parameter.to_string() << " not found for " << _name << endmsg;
return boost::shared_ptr<Control>();
}
}
bool
ControlSet::find_next_event (FrameTime now, FrameTime end, ControlEvent& next_event) const
{
Controls::const_iterator li;
next_event.when = std::numeric_limits<FrameTime>::max();
for (li = _controls.begin(); li != _controls.end(); ++li) {
ControlList::const_iterator i;
boost::shared_ptr<const ControlList> alist (li->second->list());
ControlEvent cp (now, 0.0f);
for (i = lower_bound (alist->begin(), alist->end(), &cp, ControlList::time_comparator);
i != alist->end() && (*i)->when < end; ++i) {
if ((*i)->when > now) {
break;
}
}
if (i != alist->end() && (*i)->when < end) {
if ((*i)->when < next_event.when) {
next_event.when = (*i)->when;
}
}
}
return next_event.when != std::numeric_limits<FrameTime>::max();
}
void
ControlSet::clear_controls ()
{
Glib::Mutex::Lock lm (_control_lock);
for (Controls::iterator li = _controls.begin(); li != _controls.end(); ++li)
li->second->list()->clear();
}
} // namespace Evoral
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