1 /* This file is part of Evoral.
2 * Copyright (C) 2008 David 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
21 #include "evoral/ControlSet.hpp"
22 #include "evoral/ControlList.hpp"
23 #include "evoral/Control.hpp"
24 #include "evoral/Event.hpp"
31 ControlSet::ControlSet()
35 ControlSet::ControlSet (const ControlSet&)
38 /* derived class must copy controls */
42 ControlSet::add_control(boost::shared_ptr<Control> ac)
44 _controls[ac->parameter()] = ac;
46 ac->ListMarkedDirty.connect_same_thread (_control_connections, boost::bind (&ControlSet::control_list_marked_dirty, this));
48 ac->list()->InterpolationChanged.connect_same_thread (
49 _list_connections, boost::bind (&ControlSet::control_list_interpolation_changed, this, ac->parameter(), _1)
54 ControlSet::what_has_data (set<Parameter>& s) const
56 Glib::Threads::Mutex::Lock lm (_control_lock);
58 for (Controls::const_iterator li = _controls.begin(); li != _controls.end(); ++li) {
59 if (li->second->list() && !li->second->list()->empty()) {
65 /** If a control for the given parameter does not exist and \a create_if_missing is true,
66 * a control will be created, added to this set, and returned.
67 * If \a create_if_missing is false this function may return null.
69 boost::shared_ptr<Control>
70 ControlSet::control (const Parameter& parameter, bool create_if_missing)
72 Controls::iterator i = _controls.find(parameter);
74 if (i != _controls.end()) {
77 } else if (create_if_missing) {
78 boost::shared_ptr<Control> ac(control_factory(parameter));
83 return boost::shared_ptr<Control>();
88 ControlSet::find_next_event (double now, double end, ControlEvent& next_event) const
90 Controls::const_iterator li;
92 next_event.when = std::numeric_limits<double>::max();
94 for (li = _controls.begin(); li != _controls.end(); ++li) {
95 ControlList::const_iterator i;
96 boost::shared_ptr<const ControlList> alist (li->second->list());
97 ControlEvent cp (now, 0.0f);
99 for (i = lower_bound (alist->begin(), alist->end(), &cp, ControlList::time_comparator);
100 i != alist->end() && (*i)->when < end; ++i) {
101 if ((*i)->when > now) {
106 if (i != alist->end() && (*i)->when < end) {
107 if ((*i)->when < next_event.when) {
108 next_event.when = (*i)->when;
113 return next_event.when != std::numeric_limits<double>::max();
117 ControlSet::clear_controls ()
119 Glib::Threads::Mutex::Lock lm (_control_lock);
121 _control_connections.drop_connections ();
122 _list_connections.drop_connections ();
124 for (Controls::iterator li = _controls.begin(); li != _controls.end(); ++li)
125 li->second->list()->clear();
128 } // namespace Evoral