Label panner automation sliders the same as panners.

git-svn-id: svn://localhost/ardour2/branches/3.0@7563 d708f5d6-7413-0410-9779-e7cbd77b26cf

2 files changed, 25 insertions, 0 deletions

diff --git a/libs/ardour/ardour/panner.h b/libs/ardour/ardour/panner.h
index abee3431ce..62512f6181 100644
--- a/libs/ardour/ardour/panner.h
+++ b/libs/ardour/ardour/panner.h
@@ -303,6 +303,8 @@ public:
 		return automation_control (Evoral::Parameter (PanAutomation, chan, id));
 	}
 
+	static std::string value_as_string (double);
+
   private:
 	/* disallow copy construction */
 	Panner (Panner const &);
diff --git a/libs/ardour/panner.cc b/libs/ardour/panner.cc
index b224bf558e..c400199943 100644
--- a/libs/ardour/panner.cc
+++ b/libs/ardour/panner.cc
@@ -29,6 +29,7 @@
 #include <locale.h>
 #include <unistd.h>
 #include <float.h>
+#include <iomanip>
 
 #include <glibmm.h>
 
@@ -1640,3 +1641,25 @@ Panner::set_mono (bool yn)
 		(*i)->set_mono (yn);
 	}
 }
+
+string
+Panner::value_as_string (double v)
+{
+	if (Panner::equivalent (v, 0.5)) {
+		return _("C");
+	} else if (equivalent (v, 0)) {
+		return _("L");
+	} else if (equivalent (v, 1)) {
+		return _("R");
+	} else if (v < 0.5) {
+		stringstream s;
+		s << fixed << setprecision (0) << _("L") << ((0.5 - v) * 200) << "%";
+		return s.str();
+	} else {
+		stringstream s;
+		s << fixed << setprecision (0) << _("R") << ((v -0.5) * 200) << "%";
+		return s.str ();
+	}
+
+	return "";
+}