class PublicEditor;
+/** Location Marker
+ *
+ * Editor ruler representation of a location marker or range on the timeline.
+ */
class ArdourMarker : public sigc::trackable
{
public:
ARDOUR::TempoSection& tempo() const { return _tempo; }
+ void update_height_mark (const double& ratio);
private:
ARDOUR::TempoSection& _tempo;
};