lily/include/span-bar.hh

   1 /*
   2   span-bar.hh -- declare Span_bar
   3
   4   source file of the GNU LilyPond music typesetter
   5
   6   (c)  1997--1999 Han-Wen Nienhuys <hanwen@cs.uu.nl>
   7 */
   8
   9
  10 #ifndef SPAN_BAR_HH
  11 #define SPAN_BAR_HH
  12
  13 #include "bar.hh"
  14
  15 /**
  16    This is a barline that is spanned across other bar lines.  This is
  17    the implementation of the long barlines that occur in orchestral
  18    score and other multi-staff music.
  19
  20    TODO: Is this usable for other stuff besides barlines? We only have
  21    to span a Score_element.  Perhaps this can be used for large time
  22    sigs?
  23 */
  24 class Span_bar : public Bar
  25 {
  26   Interval get_spanned_interval () const;
  27 public:
  28   Span_bar();
  29
  30   VIRTUAL_COPY_CONS(Score_element);
  31   void add_bar (Score_element*);
  32   void set_align (Align_element *);
  33 protected:
  34   void evaluate_empty ();
  35
  36   static Interval width_callback(Dimension_cache const*) ;
  37   static Interval height_callback(Dimension_cache const*) ;
  38
  39   virtual void do_pre_processing();
  40   virtual void do_post_processing();
  41   virtual Molecule * do_brew_molecule_p() const;
  42 };
  43
  44 #endif // SPAN_BAR_HH