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"
30 PBD::Signal1<void,Controllable*> Controllable::Destroyed;
31 PBD::Signal1<bool,Controllable*> Controllable::StartLearning;
32 PBD::Signal1<void,Controllable*> Controllable::StopLearning;
33 PBD::Signal3<void,Controllable*,int,int> Controllable::CreateBinding;
34 PBD::Signal1<void,Controllable*> Controllable::DeleteBinding;
36 Glib::StaticRWLock Controllable::registry_lock = GLIBMM_STATIC_RW_LOCK_INIT;
37 Controllable::Controllables Controllable::registry;
38 PBD::ScopedConnectionList registry_connections;
39 const std::string Controllable::xml_node_name = X_("Controllable");
41 Controllable::Controllable (const string& name, Flag f)
50 Controllable::add (Controllable& ctl)
52 using namespace boost;
54 Glib::RWLock::WriterLock lm (registry_lock);
55 registry.insert (&ctl);
57 /* Controllable::remove() is static - no need to manage this connection */
59 ctl.DropReferences.connect_same_thread (registry_connections, boost::bind (&Controllable::remove, &ctl));
63 Controllable::remove (Controllable* ctl)
65 Glib::RWLock::WriterLock lm (registry_lock);
67 for (Controllables::iterator i = registry.begin(); i != registry.end(); ++i) {
76 Controllable::by_id (const ID& id)
78 Glib::RWLock::ReaderLock lm (registry_lock);
80 for (Controllables::iterator i = registry.begin(); i != registry.end(); ++i) {
81 if ((*i)->id() == id) {
89 Controllable::by_name (const string& str)
91 Glib::RWLock::ReaderLock lm (registry_lock);
93 for (Controllables::iterator i = registry.begin(); i != registry.end(); ++i) {
94 if ((*i)->_name == str) {
102 Controllable::get_state ()
104 XMLNode* node = new XMLNode (xml_node_name);
107 node->add_property (X_("name"), _name); // not reloaded from XML state, just there to look at
108 _id.print (buf, sizeof (buf));
109 node->add_property (X_("id"), buf);
110 node->add_property (X_("flags"), enum_2_string (_flags));
111 snprintf (buf, sizeof (buf), "%2.12f", get_value());
112 node->add_property (X_("value"), buf);
118 Controllable::set_state (const XMLNode& node, int /*version*/)
120 const XMLProperty* prop;
122 if ((prop = node.property (X_("id"))) != 0) {
126 error << _("Controllable state node has no ID property") << endmsg;
130 if ((prop = node.property (X_("flags"))) != 0) {
131 _flags = (Flag) string_2_enum (prop->value(), _flags);
134 if ((prop = node.property (X_("value"))) != 0) {
137 if (sscanf (prop->value().c_str(), "%f", &val) == 1) {
144 Controllable::set_flags (Flag f)