release: 1.3.120

[lilypond.git] / lily / include / stem.hh

diff --git a/lily/include/stem.hh b/lily/include/stem.hh
index 3ea7c356087c38556025cfab24e77424c2cb72a7..46ad72c2f64d178f915565ab66111ca44fdc554d 100644 (file)
--- a/lily/include/stem.hh
+++ b/lily/include/stem.hh
@@ -1,102 +1,51 @@
 /*
   stem.hh -- declare Stem
 
-  (c) 1996,97 Han-Wen Nienhuys
+  (c) 1996--2000 Han-Wen Nienhuys
 */
 
 #ifndef STEM_HH
 #define STEM_HH
-#include "item.hh"
-#include "varray.hh"
-#include "moment.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 {
-    
-    Real stem_bottom_f_, stem_top_f_;
-    
-    
-    /// 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
-      */
-    Real stem_xoffset_f_;
-    /**
-      store the wholes (for vapourware tremolo)
-     */
-    Link_array<Note_head> whole_l_arr_;
-    Link_array<Note_head> head_l_arr_;
-    Link_array<Note_head> rest_l_arr_;
-    
+class Stem 
+{
 public:
-    /// flagtype? 4 none, 8 8th flag, 0 = beam.
-    int flag_i_;
-
-    int beams_left_i_;
-    int beams_right_i_;
-
-    /// false if in beam
-    bool print_flag_b_;
-    
-    int dir_i_;
-
-    
-    /* *************** */
-    Stem (int staff_size_i);
-    
-    /// ensure that this Stem also encompasses the Notehead #n#
-    void add (Note_head*n);
-
-    DECLARE_MY_RUNTIME_TYPEINFO;
-
-    Real hpos_f()const;
-    
-    void do_print() const;
-    void set_stemend (Real);
-    int get_default_dir();
-    int get_center_distance_from_top();
-    int get_center_distance_from_bottom();
-    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_start_f() const;
-
-    bool invisible_b()const;
-    
-    /// heads that the stem encompasses (positions)
-    int max_head_i() const;
-    int min_head_i() const;
-protected:
-    virtual void do_substitute_dependency (Score_elem*,Score_elem*);
-    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 (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