/*
stem.hh -- declare Stem
- (c) 1996--1998 Han-Wen Nienhuys
+ (c) 1996--2000 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.
- */
-class Stem : public Item {
-
-
- Drul_array<Real> yextent_drul_;
-
- /// needed for determining direction/length
- int staff_size_i_;
-
- /**extent of the stem (positions).
- fractional, since Beam has to adapt them.
- */
-
-
- /**
- geen gedonder, jij gaat onder.
- -1 stem points down, +1: stem points up
- */
- Direction stem_xdir_;
-
- Link_array<Note_head> head_l_arr_;
- Link_array<Rest> rest_l_arr_;
-
+class Stem
+{
public:
-
- /// how many abbrev beam don't reach stem?
- int beam_gap_i_;
-
- /// log of the duration. Eg. 4 -> 16th note -> 2 flags
- int flag_i_;
-
- /**
- don't print flag when in beam.
- our beam, for aligning abbrev flags
- */
- Beam* beam_l_;
-
- int beams_left_i_;
- int beams_right_i_;
-
- /// maximum number of beams
- int mult_i_;
-
- /// direction stem (that's me)
- Direction dir_;
-
- /// is direction explicitely specified?
- bool dir_forced_b_;
-
- /// direction of the beam
- Direction beam_dir_;
-
- Stem ();
-
- /// ensure that this Stem also encompasses the Notehead #n#
- void add_head (Rhythmic_head*n);
-
-
-
- Real hpos_f () const;
- Real chord_start_f () const;
-
- int type_i () const;
-
- void do_print() const;
- void set_stemend (Real);
- Direction get_default_dir() const;
- Direction get_dir () const;
-
- int get_center_distance(Direction) const;
- void set_default_dir();
- void set_default_stemlen();
- void set_default_extents();
- void set_noteheads();
-
- Real stem_length_f() const;
- Real stem_end_f() const;
- Real stem_begin_f() const;
- Real note_delta_f () const;
-
- bool invisible_b() const;
-
- /// heads that the stem encompasses (positions)
- Interval_t<int> head_positions() const;
- virtual ~Stem ();
-protected:
- virtual void do_substitute_dependency (Score_element*,Score_element*);
- virtual void do_pre_processing();
- virtual Interval do_width() const;
- Molecule* brew_molecule_p() const;
+ DECLARE_SCHEME_CALLBACK(brew_molecule, (SCM ));
+
+ static int flag_i (Score_element*) ;
+ static int beam_count (Score_element*,Direction) ;
+ static void set_beaming (Score_element*,int, Direction d);
+ static Score_element * beam_l (Score_element*);
+ static Score_element * first_head (Score_element*) ;
+ static Drul_array<Score_element*> extremal_heads (Score_element*);
+ static Score_element * support_head (Score_element*) ;
+ static void add_head (Score_element*me, Score_element*n);
+ static Stem_info calc_stem_info (Score_element *) ;
+ static Real chord_start_f (Score_element *) ;
+ static Direction get_direction (Score_element*) ;
+ static int type_i (Score_element *) ;
+ static void set_stemend (Score_element *,Real);
+ static Direction get_default_dir(Score_element *) ;
+ static int get_center_distance(Score_element *,Direction) ;
+ static int heads_i (Score_element *) ;
+ static bool invisible_b(Score_element *) ;
+ static Interval head_positions(Score_element *) ;
+ static Real get_default_stem_end_position (Score_element*me) ;
+ static void position_noteheads(Score_element*);
+ static Real stem_end_position (Score_element*) ;
+ DECLARE_SCHEME_CALLBACK(off_callback, (SCM element, SCM axis));
+ static Molecule flag (Score_element*);
+ DECLARE_SCHEME_CALLBACK(before_line_breaking, (SCM ));
+ DECLARE_SCHEME_CALLBACK(dim_callback, (SCM smob, SCM axis));
+ static bool has_interface (Score_element*);
+ static void set_interface (Score_element*);
+
+ static void set_spacing_hints (Score_element*me) ;
};
#endif