release: 1.5.29

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

diff --git a/lily/include/stem.hh b/lily/include/stem.hh
index 34776ea49cec6b45965221871b18e516d3d28f0a..65e7d238abf22f686ce46bc6ab7378707f87b23f 100644 (file)
--- a/lily/include/stem.hh
+++ b/lily/include/stem.hh
@@ -1,81 +1,52 @@
 /*
   stem.hh -- declare Stem
 
-  (c) 1996,97 Han-Wen Nienhuys
+  (c) 1996--2002 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:
+  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