static void add_column (Grob*me,Item*);
static void add_beam (Grob*me,Grob*);
static Grob *parallel_beam (Grob *me, Link_array<Grob> const&cols, bool *equally_long);
- static void calc_dy (Grob*,Real *) ;
static void calc_position_and_height (Grob*,Real*,Real *dy);
DECLARE_SCHEME_CALLBACK (after_line_breaking, (SCM ));