better design for range plays that leaves the range play button able to play the...

[ardour.git] / libs / pbd / controllable.cc

diff --git a/libs/pbd/controllable.cc b/libs/pbd/controllable.cc
index 2264a955ae1accfda27633482b812beea5f0de35..6a0028668b67fffce6db2355eb6bfceca69192e9 100644 (file)
--- a/libs/pbd/controllable.cc
+++ b/libs/pbd/controllable.cc
@@ -1,3 +1,22 @@
+/*
+    Copyright (C) 2000-2007 Paul Davis 
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
 #include <pbd/controllable.h>
 #include <pbd/xml++.h>
 #include <pbd/error.h>
@@ -9,17 +28,101 @@ using namespace PBD;
 sigc::signal<void,Controllable*> Controllable::Destroyed;
 sigc::signal<bool,Controllable*> Controllable::StartLearning;
 sigc::signal<void,Controllable*> Controllable::StopLearning;
+sigc::signal<void,Controllable*,int,int> Controllable::CreateBinding;
+sigc::signal<void,Controllable*> Controllable::DeleteBinding;
+
+Glib::Mutex* Controllable::registry_lock = 0;
+Controllable::Controllables Controllable::registry;
 
 Controllable::Controllable (std::string name)
        : _name (name)
 {
+       if (registry_lock == 0) {
+               registry_lock = new Glib::Mutex;
+       }
+
+       add ();
+}
+
+Controllable::Controllable (const XMLNode& node)
+{
+       const XMLProperty* prop = node.property (X_("name"));
+
+       if (!prop) {
+               fatal << string_compose (_("programming error: %1"), "Controllable (XMLNode&) constructor called without name property")
+                     << endmsg;
+               /*NOTREACHED*/
+       }
+
+       _name = prop->value ();
+
+       prop = node.property (X_("id"));
+
+       if (!prop) {
+               fatal << string_compose (_("programming error: %1"), "Controllable (XMLNode&) constructor called without id property")
+                     << endmsg;
+               /*NOTREACHED*/
+       }
+       
+       _id = prop->value();
+       
+       add ();
+}
+
+void
+Controllable::add ()
+{
+       Glib::Mutex::Lock lm (*registry_lock);
+       registry.insert (this);
+       this->GoingAway.connect (mem_fun (this, &Controllable::remove));
+}
+
+void
+Controllable::remove ()
+{
+       Glib::Mutex::Lock lm (*registry_lock);
+       for (Controllables::iterator i = registry.begin(); i != registry.end(); ++i) {
+               if ((*i) == this) {
+                       registry.erase (i);
+                       break;
+               }
+       }
+}
+
+Controllable*
+Controllable::by_id (const ID& id)
+{
+       Glib::Mutex::Lock lm (*registry_lock);
+
+       for (Controllables::iterator i = registry.begin(); i != registry.end(); ++i) {
+               if ((*i)->id() == id) {
+                       return (*i);
+               }
+       }
+       return 0;
+}
+
+
+Controllable*
+Controllable::by_name (const std::string& str)
+{
+       Glib::Mutex::Lock lm (*registry_lock);
+
+       for (Controllables::iterator i = registry.begin(); i != registry.end(); ++i) {
+               if ((*i)->_name == str) {
+                       return (*i);
+               }
+       }
+       return 0;
 }
 
 XMLNode&
 Controllable::get_state ()
 {
-       XMLNode* node = new XMLNode (_name);
+       XMLNode* node = new XMLNode (X_("controllable"));
        char buf[64];
+
+       node->add_property (X_("name"), _name); // not reloaded from XML state, just there to look at
        _id.print (buf, sizeof (buf));
        node->add_property (X_("id"), buf);
        return *node;