From 746d5c6624727fa92ee1f15a1c5192b9d44b9961 Mon Sep 17 00:00:00 2001
From: Paul Davis <paul@linuxaudiosystems.com>
Date: Mon, 18 Jan 2016 11:57:55 -0500
Subject: [PATCH] add API to allow mackie controls to use
 GroupControlDisposition

---
 libs/surfaces/mackie/controls.cc | 4 ++--
 libs/surfaces/mackie/controls.h  | 3 ++-
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/libs/surfaces/mackie/controls.cc b/libs/surfaces/mackie/controls.cc
index 8ed0bad311..be13bc93bd 100644
--- a/libs/surfaces/mackie/controls.cc
+++ b/libs/surfaces/mackie/controls.cc
@@ -78,10 +78,10 @@ Control::set_control (boost::shared_ptr<AutomationControl> ac)
 }
 
 void
-Control::set_value (float val)
+Control::set_value (float val, PBD::Controllable::GroupControlDisposition group_override)
 {
 	if (normal_ac) {
-		normal_ac->set_value (normal_ac->interface_to_internal (val), PBD::Controllable::NoGroup);
+		normal_ac->set_value (normal_ac->interface_to_internal (val), group_override);
 	}
 }
 
diff --git a/libs/surfaces/mackie/controls.h b/libs/surfaces/mackie/controls.h
index 38eb30fb65..c53be76891 100644
--- a/libs/surfaces/mackie/controls.h
+++ b/libs/surfaces/mackie/controls.h
@@ -27,6 +27,7 @@
 
 #include <boost/smart_ptr.hpp>
 
+#include "pbd/controllable.h"
 #include "pbd/signals.h"
 
 #include "mackie_control_exception.h"
@@ -70,7 +71,7 @@ public:
 	virtual void set_control (boost::shared_ptr<ARDOUR::AutomationControl>);
 
 	float get_value ();
-	void set_value (float val);
+	void set_value (float val, PBD::Controllable::GroupControlDisposition gcd = PBD::Controllable::UseGroup);
 
 	virtual void start_touch (double when);
 	virtual void stop_touch (bool mark, double when);