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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);
Controls::const_iterator li;
// FIXME: correct semantics?
for (li = _controls.begin(); li != _controls.end(); ++li) {
s.insert ((*li).first);
}
}
/** If \a create_if_missing is true, a control list will be created and returned
* if one does not already exists. Otherwise NULL will be returned if a control list
* for \a parameter does not exist.
*/
boost::shared_ptr<Control>
ControlSet::control (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<ControlList> al (control_list_factory(parameter));
boost::shared_ptr<Control> ac(control_factory(al));
add_control(ac);
return ac;
} else {
//warning << "ControlList " << parameter.to_string() << " not found for " << _name << endmsg;
return boost::shared_ptr<Control>();
}
}
boost::shared_ptr<const Control>
ControlSet::control (Parameter parameter) const
{
Controls::const_iterator i = _controls.find(parameter);
if (i != _controls.end()) {
return i->second;
} else {
//warning << "ControlList " << parameter.to_string() << " not found for " << _name << endmsg;
return boost::shared_ptr<Control>();
}
}
bool
ControlSet::find_next_event (nframes_t now, nframes_t end, ControlEvent& next_event) const
{
Controls::const_iterator li;
next_event.when = std::numeric_limits<nframes_t>::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<nframes_t>::max();
}
void
ControlSet::clear ()
{
Glib::Mutex::Lock lm (_control_lock);
for (Controls::iterator li = _controls.begin(); li != _controls.end(); ++li)
li->second->list()->clear();
}
boost::shared_ptr<Control>
ControlSet::control_factory(boost::shared_ptr<ControlList> list) const
{
return boost::shared_ptr<Control>(new Control(list));
}
boost::shared_ptr<ControlList>
ControlSet::control_list_factory(const Parameter& param) const
{
return boost::shared_ptr<ControlList>(new ControlList(param));
}
} // namespace Evoral
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