1 /* This file is part of Evoral.
2 * Copyright (C) 2008 Dave Robillard <http://drobilla.net>
3 * Copyright (C) 2000-2008 Paul Davis
5 * Evoral is free software; you can redistribute it and/or modify it under the
6 * terms of the GNU General Public License as published by the Free Software
7 * Foundation; either version 2 of the License, or (at your option) any later
10 * Evoral is distributed in the hope that it will be useful, but WITHOUT ANY
11 * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
12 * FOR A PARTICULAR PURPOSE. See the GNU General Public License for details.
14 * You should have received a copy of the GNU General Public License along
15 * with this program; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
20 #include "evoral/ControlSet.hpp"
21 #include "evoral/ControlList.hpp"
22 #include "evoral/Control.hpp"
23 #include "evoral/Event.hpp"
30 ControlSet::ControlSet()
34 ControlSet::ControlSet (const ControlSet& other)
37 /* derived class must copy controls */
41 ControlSet::add_control(boost::shared_ptr<Control> ac)
43 _controls[ac->parameter()] = ac;
47 ControlSet::what_has_data (set<Parameter>& s) const
49 Glib::Mutex::Lock lm (_control_lock);
50 for (Controls::const_iterator li = _controls.begin(); li != _controls.end(); ++li) {
55 /** If a control for the given parameter does not exist and \a create_if_missing is true,
56 * a control will be created, added to this set, and returned.
57 * If \a create_if_missing is false this function may return null.
59 boost::shared_ptr<Control>
60 ControlSet::control (const Parameter& parameter, bool create_if_missing)
62 Controls::iterator i = _controls.find(parameter);
64 if (i != _controls.end()) {
67 } else if (create_if_missing) {
68 boost::shared_ptr<Control> ac(control_factory(parameter));
73 return boost::shared_ptr<Control>();
78 ControlSet::find_next_event (FrameTime now, FrameTime end, ControlEvent& next_event) const
80 Controls::const_iterator li;
82 next_event.when = std::numeric_limits<FrameTime>::max();
84 for (li = _controls.begin(); li != _controls.end(); ++li) {
85 ControlList::const_iterator i;
86 boost::shared_ptr<const ControlList> alist (li->second->list());
87 ControlEvent cp (now, 0.0f);
89 for (i = lower_bound (alist->begin(), alist->end(), &cp, ControlList::time_comparator);
90 i != alist->end() && (*i)->when < end; ++i) {
91 if ((*i)->when > now) {
96 if (i != alist->end() && (*i)->when < end) {
97 if ((*i)->when < next_event.when) {
98 next_event.when = (*i)->when;
103 return next_event.when != std::numeric_limits<FrameTime>::max();
107 ControlSet::clear_controls ()
109 Glib::Mutex::Lock lm (_control_lock);
111 for (Controls::iterator li = _controls.begin(); li != _controls.end(); ++li)
112 li->second->list()->clear();
116 } // namespace Evoral