struct Spacing_interface
{
- static Real minimum_distance (Grob *me);
- static Drul_array<Item*> note_columns (Grob *me);
+ static Real minimum_distance (Grob *me, Grob *right_col);
+ static vector<Item*> right_note_columns (Grob *me);
+ static vector<Item*> left_note_columns (Grob *me);
static Item* right_column (Grob *me);
static Item* left_column (Grob *me);
+ static Drul_array<Skyline> skylines (Grob *me, Grob *right_col);
+ static Grob* extremal_break_aligned_grob (Grob *me, Direction, Direction, Interval*);
DECLARE_GROB_INTERFACE();
};