add API for controlling and determining active status of a SceneChange

Conflicts:
	libs/ardour/ardour/scene_change.h

1 files changed, 13 insertions, 9 deletions

diff --git a/libs/ardour/ardour/scene_change.h b/libs/ardour/ardour/scene_change.h
index ee711985b5..661d2238b7 100644
--- a/libs/ardour/ardour/scene_change.h
+++ b/libs/ardour/ardour/scene_change.h
@@ -36,17 +36,21 @@ class SceneChange : public PBD::Stateful
 	static boost::shared_ptr<SceneChange> factory (const XMLNode&, int version);
 	static std::string xml_node_name;
 
-	uint32_t color() const;
-	void set_color (uint32_t);
-	bool color_out_of_bounds() const { return _color == out_of_bound_color; }
-	static const uint32_t out_of_bound_color;
-        
-	PBD::Signal0<void> ColorChanged;
+        uint32_t color() const;
+        void set_color (uint32_t);
+        bool color_out_of_bounds() const { return _color == out_of_bound_color; }
+        static const uint32_t out_of_bound_color;
 
-protected:
-	/* derived classes are responsible for serializing & deserializing this value */
-	uint32_t _color;
+        bool active () const { return _active; }
+        void set_active (bool);
+        
+        PBD::Signal0<void> ColorChanged;
+        PBD::Signal0<void> ActiveChanged;
 
+    protected:
+        /* derived classes are responsible for serializing & deserializing this value */
+        uint32_t _color;
+        bool     _active;
 };
 
 } /* namespace */