+ inline double contents_height() const
+ { return (child_height() - TimeAxisViewItem::NAME_HIGHLIGHT_SIZE - 2); }
+
+ inline double note_to_y(uint8_t note) const
+ { return contents_height()
+ - (note + 1 - lowest_note()) * note_height() + 1; }
+
+ uint8_t y_to_note(double y) const;
+
+ inline double note_height() const
+ { return contents_height() / (double)contents_note_range(); }
+
+ inline uint8_t contents_note_range() const
+ { return highest_note() - lowest_note() + 1; }
+
+ sigc::signal<void> NoteRangeChanged;
+
+ RegionView* create_region_view (boost::shared_ptr<ARDOUR::Region>, bool, bool);
+
+ void apply_note_range(uint8_t lowest, uint8_t highest, bool to_region_views);
+
+ void suspend_updates ();
+ void resume_updates ();