/*
stem.hh -- declare Stem
- (c) 1996--2000 Han-Wen Nienhuys
+ (c) 1996--2002 Han-Wen Nienhuys
*/
#ifndef STEM_HH
#define STEM_HH
-#include "item.hh"
-#include "array.hh"
-#include "moment.hh"
-#include "molecule.hh"
+#include "lily-proto.hh"
+#include "lily-guile.hh"
#include "stem-info.hh"
+#include "drul-array.hh"
-/**the rule attached to the ball.
- takes care of:
-
- \begin{itemize}
- \item the rule
- \item the flag
- \item up/down position.
- \end{itemize}
-
- should move beam_{left, right} into Beam
-
- TODO.
-
- Stem size depends on flag.
-
- elt properties:
-
- beam_dir: direction of the beam (int)
-
- dir_force: is direction explicitely specified? (bool)
-
- /// how many abbrev beam don't reach stem?
- int beam_gap_i_;
-
-
-
- */
-class Stem : public Item
+class Stem
{
public:
- static SCM scheme_molecule (SCM);
-
-
-
- /// log of the duration. Eg. 4 -> 16th note -> 2 flags
- int flag_i () const;
-
- int beam_count (Direction) const;
- void set_beaming (int, Direction d);
- /**
- don't print flag when in beam.
- our beam, for aligning abbrev flags
- */
- Beam* beam_l () const;
- Note_head * first_head () const;
- Drul_array<Note_head*> extremal_heads () const;
-
- Score_element * support_head () const;
- Stem (SCM);
-
- /// ensure that this Stem also encompasses the Notehead #n#
- void add_head (Rhythmic_head*n);
-
- Stem_info calc_stem_info () const;
-
- Real chord_start_f () const;
- Direction get_direction () const;
- int type_i () const;
- void set_stemend (Real);
- Direction get_default_dir() const;
-
- int get_center_distance(Direction) const;
- int heads_i () const;
-
- bool invisible_b() const;
-
- /// heads that the stem encompasses (positions)
- Interval head_positions() const;
-
-protected:
- friend class Stem_tremolo; // ugh.
- Real get_default_stem_end_position () const;
- void position_noteheads();
-
- Real stem_end_position () const;
- static Real off_callback (Score_element const*, Axis);
- Molecule flag () const;
-
- virtual void before_line_breaking();
- static Interval dim_callback (Score_element const*,Axis);
- virtual Molecule do_brew_molecule() const;
-
- void set_spacing_hints () ;
+ DECLARE_SCHEME_CALLBACK (brew_molecule, (SCM ));
+
+ static Array<int> note_head_positions (Grob*);
+ static int flag_i (Grob*) ;
+ static int beam_count (Grob*,Direction) ;
+ static void set_beaming (Grob*,int, Direction d);
+ static Grob * beam_l (Grob*);
+ static Grob * first_head (Grob*) ;
+ static Drul_array<Grob*> extremal_heads (Grob*);
+ static Grob * support_head (Grob*) ;
+ static void add_head (Grob*me, Grob*n);
+ static Stem_info calc_stem_info (Grob *) ;
+ static Real chord_start_f (Grob *) ;
+ static Direction get_direction (Grob*) ;
+ static int type_i (Grob *) ;
+ static void set_stemend (Grob *,Real);
+ static Direction get_default_dir (Grob *) ;
+ static int get_center_distance (Grob *,Direction) ;
+ static int heads_i (Grob *) ;
+ static bool invisible_b (Grob *) ;
+ static Interval head_positions (Grob *) ;
+ static Real get_default_stem_end_position (Grob*me) ;
+ static void position_noteheads (Grob*);
+ static Real stem_end_position (Grob*) ;
+ DECLARE_SCHEME_CALLBACK (off_callback, (SCM element, SCM axis));
+ static Molecule flag (Grob*);
+ DECLARE_SCHEME_CALLBACK (before_line_breaking, (SCM ));
+ DECLARE_SCHEME_CALLBACK (dim_callback, (SCM smob, SCM axis));
+ DECLARE_SCHEME_CALLBACK (height, (SCM,SCM));
+ static bool has_interface (Grob*);
+ static void set_interface (Grob*);
+
+ static void set_spacing_hints (Grob*me) ;
};
#endif