2 Copyright (C) 2000-2007 Paul Davis
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 #include "pbd/controllable.h"
21 #include "pbd/enumwriter.h"
22 #include "pbd/xml++.h"
23 #include "pbd/error.h"
24 #include "pbd/locale_guard.h"
25 #include "pbd/stacktrace.h"
32 PBD::Signal1<void,Controllable*> Controllable::Destroyed;
33 PBD::Signal1<bool,Controllable*> Controllable::StartLearning;
34 PBD::Signal1<void,Controllable*> Controllable::StopLearning;
35 PBD::Signal3<void,Controllable*,int,int> Controllable::CreateBinding;
36 PBD::Signal1<void,Controllable*> Controllable::DeleteBinding;
38 Glib::Threads::RWLock Controllable::registry_lock;
39 Controllable::Controllables Controllable::registry;
40 PBD::ScopedConnectionList* registry_connections = 0;
41 const std::string Controllable::xml_node_name = X_("Controllable");
43 Controllable::Controllable (const string& name, Flag f)
52 Controllable::add (Controllable& ctl)
54 using namespace boost;
56 Glib::Threads::RWLock::WriterLock lm (registry_lock);
57 registry.insert (&ctl);
59 if (!registry_connections) {
60 registry_connections = new ScopedConnectionList;
63 /* Controllable::remove() is static - no need to manage this connection */
65 ctl.DropReferences.connect_same_thread (*registry_connections, boost::bind (&Controllable::remove, &ctl));
69 Controllable::remove (Controllable* ctl)
71 Glib::Threads::RWLock::WriterLock lm (registry_lock);
73 for (Controllables::iterator i = registry.begin(); i != registry.end(); ++i) {
82 Controllable::by_id (const ID& id)
84 Glib::Threads::RWLock::ReaderLock lm (registry_lock);
86 for (Controllables::iterator i = registry.begin(); i != registry.end(); ++i) {
87 if ((*i)->id() == id) {
95 Controllable::by_name (const string& str)
97 Glib::Threads::RWLock::ReaderLock lm (registry_lock);
99 for (Controllables::iterator i = registry.begin(); i != registry.end(); ++i) {
100 if ((*i)->_name == str) {
108 Controllable::get_state ()
110 XMLNode* node = new XMLNode (xml_node_name);
114 /* Waves' "Pressure3" has a parameter called "µ-iness"
115 * which causes a parser error : Input is not proper UTF-8, indicate encoding !
116 * Bytes: 0xB5 0x2D 0x69 0x6E
117 * <Controllable name="�-iness" id="2391" flags="" value="0.000000000000" p
120 // this is not reloaded from XML, but it must be present because it is
121 // used to find and identify XML nodes by various Controllable-derived objects
123 node->add_property (X_("name"), _name);
125 if (_name == "gaincontrol") {
126 PBD::stacktrace (cerr, 20);
129 id().print (buf, sizeof (buf));
130 node->add_property (X_("id"), buf);
131 node->add_property (X_("flags"), enum_2_string (_flags));
132 snprintf (buf, sizeof (buf), "%2.12f", get_value());
133 node->add_property (X_("value"), buf);
136 node->add_child_copy (*_extra_xml);
144 Controllable::set_state (const XMLNode& node, int /*version*/)
147 const XMLProperty* prop;
149 Stateful::save_extra_xml (node);
153 if ((prop = node.property (X_("flags"))) != 0) {
154 _flags = (Flag) string_2_enum (prop->value(), _flags);
157 if ((prop = node.property (X_("value"))) != 0) {
160 if (sscanf (prop->value().c_str(), "%f", &val) == 1) {
161 set_value (val, NoGroup);
169 Controllable::set_flags (Flag f)