*/
+#include <vector>
+
#include <glibmm/threads.h>
#include "pbd/convert.h"
+#include "pbd/error.h"
#include "pbd/xml++.h"
#include "ardour/slavable.h"
+#include "ardour/slavable_automation_control.h"
#include "ardour/vca.h"
+#include "ardour/vca_manager.h"
-#include "i18n.h"
+#include "pbd/i18n.h"
+using namespace PBD;
using namespace ARDOUR;
std::string Slavable::xml_node_name = X_("Slavable");
+PBD::Signal1<void,VCAManager*> Slavable::Assign; /* signal sent once
+ * assignment is possible */
Slavable::Slavable ()
{
-
+ Assign.connect_same_thread (assign_connection, boost::bind (&Slavable::do_assign, this, _1));
}
XMLNode&
-Slavable::state () const
+Slavable::get_state () const
{
XMLNode* node = new XMLNode (xml_node_name);
XMLNode* child;
Glib::Threads::RWLock::ReaderLock lm (master_lock);
for (std::set<uint32_t>::const_iterator i = _masters.begin(); i != _masters.end(); ++i) {
child = new XMLNode (X_("Master"));
- child->add_property (X_("number"), PBD::to_string (*i, std::dec));
+ child->add_property (X_("number"), to_string (*i, std::dec));
node->add_child_nocopy (*child);
}
}
int
-Slavable::assign (Session& s, XMLNode const& node)
+Slavable::set_state (XMLNode const& node, int version)
+{
+ if (node.name() != xml_node_name) {
+ return -1;
+ }
+
+ XMLNodeList const& children (node.children());
+ Glib::Threads::RWLock::WriterLock lm (master_lock);
+
+ for (XMLNodeList::const_iterator i = children.begin(); i != children.end(); ++i) {
+ if ((*i)->name() == X_("Master")) {
+ XMLProperty const* prop = (*i)->property (X_("number"));
+ if (prop) {
+ uint32_t n = atoi (prop->value());
+ _masters.insert (n);
+ }
+ }
+ }
+
+ return 0;
+}
+
+
+int
+Slavable::do_assign (VCAManager* manager)
{
+ std::vector<boost::shared_ptr<VCA> > vcas;
+
+ {
+ Glib::Threads::RWLock::ReaderLock lm (master_lock);
+
+ for (std::set<uint32_t>::const_iterator i = _masters.begin(); i != _masters.end(); ++i) {
+ boost::shared_ptr<VCA> v = manager->vca_by_number (*i);
+ if (v) {
+ vcas.push_back (v);
+ } else {
+ warning << string_compose (_("Master #%1 not found, assignment lost"), *i) << endmsg;
+ }
+ }
+ }
+
+ /* now that we've released the lock, we can do the assignments */
+
+ for (std::vector<boost::shared_ptr<VCA> >::iterator v = vcas.begin(); v != vcas.end(); ++v) {
+ assign (*v);
+ }
+
+ assign_connection.disconnect ();
+
return 0;
}
void
Slavable::assign (boost::shared_ptr<VCA> v)
{
+ assert (v);
+ Glib::Threads::RWLock::WriterLock lm (master_lock);
if (assign_controls (v) == 0) {
- Glib::Threads::RWLock::WriterLock lm (master_lock);
_masters.insert (v->number());
}
+
+ /* Do NOT use ::unassign() because it will store a
+ * boost::shared_ptr<VCA> in the functor, leaving a dangling ref to the
+ * VCA.
+ */
+
+
+ v->Drop.connect_same_thread (unassign_connections, boost::bind (&Slavable::weak_unassign, this, boost::weak_ptr<VCA>(v)));
+ v->DropReferences.connect_same_thread (unassign_connections, boost::bind (&Slavable::weak_unassign, this, boost::weak_ptr<VCA>(v)));
+}
+
+void
+Slavable::weak_unassign (boost::weak_ptr<VCA> v)
+{
+ boost::shared_ptr<VCA> sv (v.lock());
+ if (sv) {
+ unassign (sv);
+ }
}
void
Slavable::unassign (boost::shared_ptr<VCA> v)
{
- (void) unassign_controls (v);
Glib::Threads::RWLock::WriterLock lm (master_lock);
- _masters.erase (v->number());
+ (void) unassign_controls (v);
+ if (v) {
+ _masters.erase (v->number());
+ } else {
+ _masters.clear ();
+ }
+}
+
+/* Gain, solo & mute are currently the only controls that are
+ * automatically slaved to the master's own equivalent controls.
+ */
+
+static AutomationType auto_slave_types[] = {
+ GainAutomation,
+ SoloAutomation,
+ MuteAutomation,
+ NullAutomation
+};
+
+int
+Slavable::assign_controls (boost::shared_ptr<VCA> vca)
+{
+ boost::shared_ptr<SlavableAutomationControl> slave;
+ boost::shared_ptr<AutomationControl> master;
+
+ for (uint32_t n = 0; auto_slave_types[n] != NullAutomation; ++n) {
+
+ slave = boost::dynamic_pointer_cast<SlavableAutomationControl> (automation_control (auto_slave_types[n]));
+ master = vca->automation_control (auto_slave_types[n]);
+
+ if (slave && master) {
+ slave->add_master (master);
+ }
+ }
+
+ return 0;
+}
+
+int
+Slavable::unassign_controls (boost::shared_ptr<VCA> vca)
+{
+ boost::shared_ptr<SlavableAutomationControl> slave;
+ boost::shared_ptr<AutomationControl> master;
+
+ for (uint32_t n = 0; auto_slave_types[n] != NullAutomation; ++n) {
+
+ slave = boost::dynamic_pointer_cast<SlavableAutomationControl> (automation_control (auto_slave_types[n]));
+
+ if (!vca) {
+ /* unassign from all */
+ if (slave) {
+ slave->clear_masters ();
+ }
+ } else {
+ master = vca->automation_control (auto_slave_types[n]);
+ if (slave && master) {
+ slave->remove_master (master);
+ }
+ }
+ }
+
+ return 0;
}