1 files changed, 43 insertions, 0 deletions
diff --git a/gtk2_ardour/region_gain_line.h b/gtk2_ardour/region_gain_line.h
new file mode 100644
index 0000000000..455be65c9d
--- /dev/null
+++ b/gtk2_ardour/region_gain_line.h
@@ -0,0 +1,43 @@
+#ifndef __ardour_gtk_region_gain_line_h__
+#define __ardour_gtk_region_gain_line_h__
+
+#include <ardour/ardour.h>
+#include <gtk-canvas.h>
+#include <gtk--.h>
+
+#include "automation_line.h"
+
+namespace ARDOUR {
+	class Session;
+}
+
+class TimeAxisView;
+class AudioRegionView;
+
+class AudioRegionGainLine : public AutomationLine
+{
+  public:
+	AudioRegionGainLine (string name, ARDOUR::Session&, AudioRegionView&, GtkCanvasItem* parent,
+			     ARDOUR::Curve&, 
+			     gint (*point_callback)(GtkCanvasItem*, GdkEvent*, gpointer),
+			     gint (*line_callback)(GtkCanvasItem*, GdkEvent*, gpointer));
+	
+	void view_to_model_y (double&);
+	void model_to_view_y (double&);
+
+	void start_drag (ControlPoint*, float fraction);
+	void end_drag (ControlPoint*);
+
+	void remove_point (ControlPoint&);
+
+
+
+  private:
+	ARDOUR::Session& session;
+	AudioRegionView& rv;
+
+	UndoAction get_memento();
+};
+
+
+#endif /* __ardour_gtk_region_gain_line_h__ */