latched rec-enable

git-svn-id: svn://localhost/trunk/ardour2@277 d708f5d6-7413-0410-9779-e7cbd77b26cf

libs/ardour/ardour/configuration.h

@@ -64,6 +64,9 @@ class Configuration : public Stateful
 	XMLNode * get_keys() const;
 	void set_keys(XMLNode *);
 
+	void set_latched_record_enable (bool yn);
+	bool get_latched_record_enable();
+
 	void set_use_vst (bool yn);
 	bool get_use_vst();
 
@@ -243,6 +246,8 @@ class Configuration : public Stateful
 	bool          quieten_at_speed_is_user;
 	uint32_t      midi_feedback_interval_ms;
 	bool          midi_feedback_interval_ms_is_user;
+	bool          latched_record_enable;
+	bool          latched_record_enable_is_user;
 
 	XMLNode *key_node;
 	bool     user_configuration;

libs/ardour/ardour/session.h

@@ -317,7 +317,7 @@ class Session : public sigc::trackable, public Stateful
 
 	bool record_enabling_legal () const;
 	void maybe_enable_record ();
-	void disable_record ();
+	void disable_record (bool force = false);
 	void step_back_from_record ();
 	
 	sigc::signal<void> going_away;
@@ -332,8 +332,7 @@ class Session : public sigc::trackable, public Stateful
 	
 	/* Record status signals */
 
-        sigc::signal<void> RecordEnabled;
-	sigc::signal<void> RecordDisabled;
+        sigc::signal<void> RecordStateChanged;
 
 	/* Transport mechanism signals */
 

libs/ardour/configuration.cc

@@ -291,6 +291,9 @@ Configuration::state (bool user_only)
 		snprintf (buf, sizeof (buf), "%f", speed_quietning);
 		node->add_child_nocopy(option_node("quieten-at-speed", buf));
 	}
+	if (!user_only || latched_record_enable_is_user) {
+		node->add_child_nocopy(option_node("latched-record-enable", latched_record_enable?"yes":"no"));
+	}
 
 	/* use-vst is always per-user */
 	node->add_child_nocopy (option_node ("use-vst", use_vst?"yes":"no"));
@@ -431,6 +434,8 @@ Configuration::set_state (const XMLNode& root)
 					}
 				} else if (option_name == "midi-feedback-interval-ms") {
 					set_midi_feedback_interval_ms (atoi (option_value.c_str()));
+				} else if (option_name == "latched-record-enable") {
+					set_latched_record_enable (option_value == "yes");
 				}
 			}
 			
@@ -526,6 +531,7 @@ Configuration::set_defaults ()
 	timecode_source_is_synced_is_user = false;
 	quieten_at_speed_is_user = false;
 	midi_feedback_interval_ms_is_user = false;
+	latched_record_enable_is_user = false;
 }
 
 Configuration::MidiPortDescriptor::MidiPortDescriptor (const XMLNode& node)
@@ -1130,3 +1136,18 @@ Configuration::set_quieten_at_speed (float gain_coefficient)
 		quieten_at_speed_is_user = true;
 	}
 }
+
+void
+Configuration::set_latched_record_enable (bool yn)
+{
+	latched_record_enable = yn;
+	if (user_configuration) {
+		latched_record_enable_is_user = true;
+	}
+}
+
+bool
+Configuration::get_latched_record_enable ()
+{
+	return latched_record_enable;
+}

libs/ardour/session.cc

@@ -1249,21 +1249,30 @@ Session::enable_record ()
 			
 			for (DiskStreamList::iterator i = diskstreams.begin(); i != diskstreams.end(); ++i) {
 				if ((*i)->record_enabled ()) {
-					//cerr << "switching to input" << __FILE__ << __LINE__ << endl << endl;
 					(*i)->monitor_input (true);   
 				}
 			}
 		}
 
-		RecordEnabled ();
+		RecordStateChanged ();
 	}
 }
 
 void
-Session::disable_record ()
+Session::disable_record (bool force)
 {
-	if (atomic_read (&_record_status) != Disabled) {
-		atomic_set (&_record_status, Disabled);
+	RecordState rs;
+
+	if ((rs = (RecordState) atomic_read (&_record_status)) != Disabled) {
+
+		if (!Config->get_latched_record_enable () || force) {
+			atomic_set (&_record_status, Disabled);
+		} else {
+			if (rs == Recording) {
+				atomic_set (&_record_status, Enabled);
+			}
+		}
+
 		send_mmc_in_another_thread (MIDI::MachineControl::cmdRecordExit);
 
 		if (Config->get_use_hardware_monitoring() && auto_input) {
@@ -1275,15 +1284,13 @@ Session::disable_record ()
 			
 			for (DiskStreamList::iterator i = diskstreams.begin(); i != diskstreams.end(); ++i) {
 				if ((*i)->record_enabled ()) {
-					//cerr << "switching from input" << __FILE__ << __LINE__ << endl << endl;
 					(*i)->monitor_input (false);   
 				}
 			}
 		}
 		
-		RecordDisabled ();
+		RecordStateChanged (); /* emit signal */
 		remove_pending_capture_state ();
-
 	}
 }
 
@@ -1321,7 +1328,7 @@ Session::maybe_enable_record ()
 		} 
 	} else {
 		send_mmc_in_another_thread (MIDI::MachineControl::cmdRecordPause);
-		RecordEnabled (); /* EMIT SIGNAL */
+		RecordStateChanged (); /* EMIT SIGNAL */
 	}
 
 	set_dirty();

libs/ardour/session_midi.cc

@@ -623,7 +623,7 @@ Session::mmc_record_strobe (MIDI::MachineControl &mmc)
 		
 		save_state ("", true);
 		atomic_set (&_record_status, Enabled);
-		RecordEnabled (); /* EMIT SIGNAL */
+		RecordStateChanged (); /* EMIT SIGNAL */
 		
 		request_transport_speed (1.0);
 

libs/ardour/session_state.cc

@@ -1242,7 +1242,6 @@ Session::get_template()
 	
 	disable_record ();
 
-	cerr << "STart get template\n";
 	return state(false);
 }
 

libs/ardour/session_transport.cc

@@ -386,8 +386,18 @@ Session::non_realtime_stop (bool abort)
 	deliver_mmc (MIDI::MachineControl::cmdLocate, _transport_frame);
 
 	if (did_record) {
-		atomic_set (&_record_status, Disabled);
-		RecordDisabled (); /* EMIT SIGNAL */
+
+		/* XXX its a little odd that we're doing this here
+		   when realtime_stop(), which has already executed,
+		   will have done this.
+		*/
+
+		if (!Config->get_latched_record_enable()) {
+			atomic_set (&_record_status, Disabled);
+		} else {
+			atomic_set (&_record_status, Enabled);
+		}
+		RecordStateChanged (); /* emit signal */
 	}
 	
 	if ((post_transport_work & PostTransportLocate) && get_record_enabled()) {