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livetrax/libs/pbd/controllable.cc
Paul Davis 9e3299f97d change Controllable::set_value() API to include grouped control consideration.
This also removes Route::group_gain_control() and associated machinery.
Not yet tested with Mackie or other surfaces. More work to done to
start using the group capabilities, and also potentially to add
or derive more controls as RouteAutomationControls
2016-01-02 04:58:30 -05:00

158 lines
3.8 KiB
C++

/*
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/enumwriter.h"
#include "pbd/xml++.h"
#include "pbd/error.h"
#include "pbd/locale_guard.h"
#include "i18n.h"
using namespace PBD;
using namespace std;
PBD::Signal1<void,Controllable*> Controllable::Destroyed;
PBD::Signal1<bool,Controllable*> Controllable::StartLearning;
PBD::Signal1<void,Controllable*> Controllable::StopLearning;
PBD::Signal3<void,Controllable*,int,int> Controllable::CreateBinding;
PBD::Signal1<void,Controllable*> Controllable::DeleteBinding;
Glib::Threads::RWLock Controllable::registry_lock;
Controllable::Controllables Controllable::registry;
PBD::ScopedConnectionList* registry_connections = 0;
const std::string Controllable::xml_node_name = X_("Controllable");
Controllable::Controllable (const string& name, Flag f)
: _name (name)
, _flags (f)
, _touching (false)
{
add (*this);
}
void
Controllable::add (Controllable& ctl)
{
using namespace boost;
Glib::Threads::RWLock::WriterLock lm (registry_lock);
registry.insert (&ctl);
if (!registry_connections) {
registry_connections = new ScopedConnectionList;
}
/* Controllable::remove() is static - no need to manage this connection */
ctl.DropReferences.connect_same_thread (*registry_connections, boost::bind (&Controllable::remove, &ctl));
}
void
Controllable::remove (Controllable* ctl)
{
Glib::Threads::RWLock::WriterLock lm (registry_lock);
for (Controllables::iterator i = registry.begin(); i != registry.end(); ++i) {
if ((*i) == ctl) {
registry.erase (i);
break;
}
}
}
Controllable*
Controllable::by_id (const ID& id)
{
Glib::Threads::RWLock::ReaderLock 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 string& str)
{
Glib::Threads::RWLock::ReaderLock 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 (xml_node_name);
LocaleGuard lg (X_("C"));
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);
node->add_property (X_("flags"), enum_2_string (_flags));
snprintf (buf, sizeof (buf), "%2.12f", get_value());
node->add_property (X_("value"), buf);
if (_extra_xml) {
node->add_child_copy (*_extra_xml);
}
return *node;
}
int
Controllable::set_state (const XMLNode& node, int /*version*/)
{
LocaleGuard lg (X_("C"));
const XMLProperty* prop;
Stateful::save_extra_xml (node);
set_id (node);
if ((prop = node.property (X_("flags"))) != 0) {
_flags = (Flag) string_2_enum (prop->value(), _flags);
}
if ((prop = node.property (X_("value"))) != 0) {
float val;
if (sscanf (prop->value().c_str(), "%f", &val) == 1) {
set_value (val, NoGroup);
}
}
return 0;
}
void
Controllable::set_flags (Flag f)
{
_flags = f;
}