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"
31 PBD::Signal1
<void,Controllable
*> Controllable::Destroyed
;
32 PBD::Signal1
<bool,Controllable
*> Controllable::StartLearning
;
33 PBD::Signal1
<void,Controllable
*> Controllable::StopLearning
;
34 PBD::Signal3
<void,Controllable
*,int,int> Controllable::CreateBinding
;
35 PBD::Signal1
<void,Controllable
*> Controllable::DeleteBinding
;
37 Glib::StaticRWLock
Controllable::registry_lock
= GLIBMM_STATIC_RW_LOCK_INIT
;
38 Controllable::Controllables
Controllable::registry
;
39 PBD::ScopedConnectionList registry_connections
;
40 const std::string
Controllable::xml_node_name
= X_("Controllable");
42 Controllable::Controllable (const string
& name
, Flag f
)
51 Controllable::add (Controllable
& ctl
)
53 using namespace boost
;
55 Glib::RWLock::WriterLock
lm (registry_lock
);
56 registry
.insert (&ctl
);
58 /* Controllable::remove() is static - no need to manage this connection */
60 ctl
.DropReferences
.connect_same_thread (registry_connections
, boost::bind (&Controllable::remove
, &ctl
));
64 Controllable::remove (Controllable
* ctl
)
66 Glib::RWLock::WriterLock
lm (registry_lock
);
68 for (Controllables::iterator i
= registry
.begin(); i
!= registry
.end(); ++i
) {
77 Controllable::by_id (const ID
& id
)
79 Glib::RWLock::ReaderLock
lm (registry_lock
);
81 for (Controllables::iterator i
= registry
.begin(); i
!= registry
.end(); ++i
) {
82 if ((*i
)->id() == id
) {
90 Controllable::by_name (const string
& str
)
92 Glib::RWLock::ReaderLock
lm (registry_lock
);
94 for (Controllables::iterator i
= registry
.begin(); i
!= registry
.end(); ++i
) {
95 if ((*i
)->_name
== str
) {
103 Controllable::get_state ()
105 XMLNode
* node
= new XMLNode (xml_node_name
);
106 LocaleGuard
lg (X_("POSIX"));
109 node
->add_property (X_("name"), _name
); // not reloaded from XML state, just there to look at
110 _id
.print (buf
, sizeof (buf
));
111 node
->add_property (X_("id"), buf
);
112 node
->add_property (X_("flags"), enum_2_string (_flags
));
113 snprintf (buf
, sizeof (buf
), "%2.12f", get_value());
114 node
->add_property (X_("value"), buf
);
117 node
->add_child_copy (*_extra_xml
);
125 Controllable::set_state (const XMLNode
& node
, int /*version*/)
127 LocaleGuard
lg (X_("POSIX"));
128 const XMLProperty
* prop
;
130 Stateful::save_extra_xml (node
);
132 if ((prop
= node
.property (X_("id"))) != 0) {
135 error
<< _("Controllable state node has no ID property") << endmsg
;
139 if ((prop
= node
.property (X_("flags"))) != 0) {
140 _flags
= (Flag
) string_2_enum (prop
->value(), _flags
);
143 if ((prop
= node
.property (X_("value"))) != 0) {
146 if (sscanf (prop
->value().c_str(), "%f", &val
) == 1) {
155 Controllable::set_flags (Flag f
)