/*
stem.hh -- declare Stem
- (c) 1996,97 Han-Wen Nienhuys
+ (c) 1996--2004 Han-Wen Nienhuys
*/
#ifndef STEM_HH
#define STEM_HH
-#include "item.hh"
-#include "varray.hh"
-#include "moment.hh"
-
-/**the rule attached to the ball.
- takes care of:
-
- \begin{itemize}
- \item the rule
- \item the flag
- \item up/down position.
- \end{itemize}
- */
-
-struct Stem : Item {
- /// heads that the stem encompasses (positions)
- int minnote, maxnote;
-
- /// false if in beam
- bool print_flag;
-
- int beams_left;
- int beams_right;
-
- /// needed for determining direction/length
- int staff_center;
-
-
- /**extent of the stem (positions).
- fractional, since Beam has to adapt them.
- */
-
- Real bot, top;
- Real stemlen;
-
- /// flagtype? 4 none, 8 8th flag, 0 = beam.
- int flag;
-
-
- /**
- geen gedonder, jij gaat onder.
- -1 stem points down, +1: stem points up
- */
-
- int dir;
- Real stem_xoffset;
-
- Array<Notehead*> heads;
-
- /* *************** */
- Stem(int center); //, Moment duration);
-
- /// ensure that this Stem also encompasses the Notehead #n#
- void add(Notehead*n);
-
- NAME_MEMBERS(Stem);
-
- Real hindex()const;
- void do_print() const;
- void set_stemend(Real);
- int get_default_dir();
- void set_default_dir();
- void set_default_stemlen();
- void set_default_extents();
- void set_noteheads();
- void do_pre_processing();
-
- Interval width() const;
-
- Molecule* brew_molecule_p() const;
+#include "lily-proto.hh"
+#include "lily-guile.hh"
+#include "stem-info.hh"
+#include "drul-array.hh"
+
+class Stem
+{
+public:
+ static Array<int> note_head_positions (Grob *);
+ static int duration_log (Grob *);
+ static void set_beaming (Grob *, int, Direction d);
+ static Grob *get_beam (Grob *);
+ static Grob *first_head (Grob *);
+ static Grob *last_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 get_stem_info (Grob *);
+ static Real chord_start_y (Grob *);
+ static Direction get_direction (Grob *);
+ static void set_stemend (Grob *,Real);
+ static Direction get_default_dir (Grob *);
+ static Slice Stem::beam_multiplicity (Grob *);
+ static Real thickness (Grob*);
+ static int head_count (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 *);
+ static Molecule flag (Grob *);
+ static bool has_interface (Grob *);
+ static void set_spacing_hints (Grob *);
+
+ DECLARE_SCHEME_CALLBACK (brew_molecule, (SCM));
+ DECLARE_SCHEME_CALLBACK (off_callback, (SCM element, SCM axis));
+ DECLARE_SCHEME_CALLBACK (before_line_breaking, (SCM));
+ DECLARE_SCHEME_CALLBACK (dim_callback, (SCM smob, SCM axis));
+ DECLARE_SCHEME_CALLBACK (height, (SCM, SCM));
+
+private:
+ static void calc_stem_info (Grob *);
};
#endif