fix crash when copy'ing latent plugins

[ardour.git] / libs / ardour / automation_control.cc

diff --git a/libs/ardour/automation_control.cc b/libs/ardour/automation_control.cc
index 3629345d941e7a9efe06fc805df15080ea07a939..e27da6ab08797f30badbec995de59bb33a57b136 100644 (file)
--- a/libs/ardour/automation_control.cc
+++ b/libs/ardour/automation_control.cc
@@ -20,15 +20,18 @@
 
 #include <math.h>
 #include <iostream>
+
+#include "pbd/memento_command.h"
+#include "pbd/stacktrace.h"
+
+#include "ardour/audioengine.h"
 #include "ardour/automation_control.h"
 #include "ardour/automation_watch.h"
+#include "ardour/control_group.h"
 #include "ardour/event_type_map.h"
 #include "ardour/session.h"
 
-#include "pbd/memento_command.h"
-#include "pbd/stacktrace.h"
-
-#include "i18n.h"
+#include "pbd/i18n.h"
 
 #ifdef COMPILER_MSVC
 #include <float.h>
@@ -52,10 +55,14 @@ AutomationControl::AutomationControl(ARDOUR::Session&                          s
        , _session(session)
        , _desc(desc)
 {
+       if (_desc.toggled) {
+               set_flags (Controllable::Toggle);
+       }
 }
 
 AutomationControl::~AutomationControl ()
 {
+       DropReferences (); /* EMIT SIGNAL */
 }
 
 bool
@@ -72,36 +79,73 @@ AutomationControl::writable() const
 double
 AutomationControl::get_value() const
 {
-       bool from_list = _list && ((AutomationList*)_list.get())->automation_playback();
+       bool from_list = _list && boost::dynamic_pointer_cast<AutomationList>(_list)->automation_playback();
        return Control::get_double (from_list, _session.transport_frame());
 }
 
+void
+AutomationControl::set_value (double val, PBD::Controllable::GroupControlDisposition gcd)
+{
+       if (!writable()) {
+               return;
+       }
+
+       /* enforce strict double/boolean value mapping */
+
+       if (_desc.toggled) {
+               if (val != 0.0) {
+                       val = 1.0;
+               }
+       }
+
+       if (check_rt (val, gcd)) {
+               /* change has been queued to take place in an RT context */
+               return;
+       }
+
+       if (_group && _group->use_me (gcd)) {
+               _group->set_group_value (shared_from_this(), val);
+       } else {
+               actually_set_value (val, gcd);
+       }
+}
+
 /** Set the value and do the right thing based on automation state
  *  (e.g. record if necessary, etc.)
  *  @param value `user' value
  */
 void
-AutomationControl::set_value (double value, PBD::Controllable::GroupControlDisposition /* group_override */)
+AutomationControl::actually_set_value (double value, PBD::Controllable::GroupControlDisposition gcd)
 {
-       bool to_list = _list && ((AutomationList*)_list.get())->automation_write();
+       bool to_list = _list && boost::dynamic_pointer_cast<AutomationList>(_list)->automation_write();
+       //const double old_value = Control::user_double ();
 
        Control::set_double (value, _session.transport_frame(), to_list);
 
-       Changed(); /* EMIT SIGNAL */
+       //AutomationType at = (AutomationType) _parameter.type();
+       //std::cerr << "++++ Changed (" << enum_2_string (at) << ", " << enum_2_string (gcd) << ") = " << value 
+       //<< " (was " << old_value << ") @ " << this << std::endl;
+
+       Changed (true, gcd);
 }
 
 void
 AutomationControl::set_list (boost::shared_ptr<Evoral::ControlList> list)
 {
        Control::set_list (list);
-       Changed();  /* EMIT SIGNAL */
+       Changed (true, Controllable::NoGroup);
 }
 
 void
 AutomationControl::set_automation_state (AutoState as)
 {
+       if (flags() & NotAutomatable) {
+               return;
+       }
        if (_list && as != alist()->automation_state()) {
 
+               const double val = get_value ();
+
                alist()->set_automation_state (as);
                if (_desc.toggled) {
                        return;  // No watch for boolean automation
@@ -110,6 +154,11 @@ AutomationControl::set_automation_state (AutoState as)
                if (as == Write) {
                        AutomationWatch::instance().add_automation_watch (shared_from_this());
                } else if (as == Touch) {
+                       if (alist()->empty()) {
+                               Control::set_double (val, _session.current_start_frame (), true);
+                               Control::set_double (val, _session.current_end_frame (), true);
+                               Changed (true, Controllable::NoGroup);
+                       }
                        if (!touching()) {
                                AutomationWatch::instance().remove_automation_watch (shared_from_this());
                        } else {
@@ -231,4 +280,26 @@ AutomationControl::interface_to_internal (double val) const
        return val;
 }
 
+void
+AutomationControl::set_group (boost::shared_ptr<ControlGroup> cg)
+{
+       /* this method can only be called by a ControlGroup. We do not need
+          to ensure consistency by calling ControlGroup::remove_control(),
+          since we are guaranteed that the ControlGroup will take care of that
+          for us.
+       */
 
+       _group = cg;
+}
+
+bool
+AutomationControl::check_rt (double val, Controllable::GroupControlDisposition gcd)
+{
+       if (!_session.loading() && (flags() & Controllable::RealTime) && !AudioEngine::instance()->in_process_thread()) {
+               /* queue change in RT context */
+               _session.set_control (shared_from_this(), val, gcd);
+               return true;
+       }
+
+       return false;
+}