From da6a6f1366b9e50af414ddde7ce8a95c8cbddc32 Mon Sep 17 00:00:00 2001
From: Robin Gareus <robin@gareus.org>
Date: Thu, 12 Jul 2018 21:42:57 +0200
Subject: [PATCH] CC121: watch Track monitoring state

---
 libs/surfaces/cc121/cc121.cc | 20 ++++++++++++++++++++
 libs/surfaces/cc121/cc121.h  |  1 +
 2 files changed, 21 insertions(+)

diff --git a/libs/surfaces/cc121/cc121.cc b/libs/surfaces/cc121/cc121.cc
index afae36d524..76e175bb21 100644
--- a/libs/surfaces/cc121/cc121.cc
+++ b/libs/surfaces/cc121/cc121.cc
@@ -48,6 +48,7 @@
 #include "ardour/filesystem_paths.h"
 #include "ardour/midi_port.h"
 #include "ardour/midiport_manager.h"
+#include "ardour/monitor_control.h"
 #include "ardour/monitor_processor.h"
 #include "ardour/profile.h"
 #include "ardour/rc_configuration.h"
@@ -1075,6 +1076,7 @@ CC121::set_current_stripable (boost::shared_ptr<Stripable> r)
 		boost::shared_ptr<Track> t = boost::dynamic_pointer_cast<Track> (_current_stripable);
 		if (t) {
 			t->rec_enable_control()->Changed.connect (stripable_connections, MISSING_INVALIDATOR, boost::bind (&CC121::map_recenable, this), this);
+			t->monitoring_control()->Changed.connect (stripable_connections, MISSING_INVALIDATOR, boost::bind (&CC121::map_monitoring, this), this);
 		}
 
 		boost::shared_ptr<AutomationControl> control = _current_stripable->gain_control ();
@@ -1181,6 +1183,23 @@ CC121::map_recenable ()
 	} else {
 		get_button (Rec).set_led_state (_output_port, false);
 	}
+	map_monitoring ();
+}
+
+void
+CC121::map_monitoring ()
+{
+	boost::shared_ptr<Track> t = boost::dynamic_pointer_cast<Track> (_current_stripable);
+	if (t) {
+	  MonitorState state = t->monitoring_control()->monitoring_state ();
+		if (state == MonitoringInput || state == MonitoringCue) {
+	    get_button(InputMonitor).set_led_state (_output_port, true);
+		} else {
+	    get_button(InputMonitor).set_led_state (_output_port, false);
+		}
+	} else {
+		get_button(InputMonitor).set_led_state (_output_port, false);
+	}
 }
 
 void
@@ -1233,6 +1252,7 @@ CC121::map_stripable_state ()
 		map_recenable ();
 		map_gain ();
 		map_auto ();
+		map_monitoring ();
 
 		if (_current_stripable == session->monitor_out()) {
 			map_cut ();
diff --git a/libs/surfaces/cc121/cc121.h b/libs/surfaces/cc121/cc121.h
index 7c5bd39170..db3ef435ff 100644
--- a/libs/surfaces/cc121/cc121.h
+++ b/libs/surfaces/cc121/cc121.h
@@ -309,6 +309,7 @@ class CC121 : public ARDOUR::ControlProtocol, public AbstractUI<CC121Request> {
 	void map_gain ();
 	void map_cut ();
 	void map_auto ();
+	void map_monitoring ();
 
 	/* operations (defined in operations.cc) */
 
-- 
2.30.2