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/*
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"
#include "i18n.h"
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)
, _touching (false)
{
if (registry_lock == 0) {
registry_lock = new Glib::Mutex;
}
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 (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;
}
int
Controllable::set_state (const XMLNode& node, int version)
{
const XMLProperty* prop = node.property (X_("id"));
if (prop) {
_id = prop->value();
return 0;
} else {
error << _("Controllable state node has no ID property") << endmsg;
return -1;
}
}
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