(print): broken beams last until end of staff.

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

diff --git a/lily/include/stem.hh b/lily/include/stem.hh
index e64aafdd6958cd6ca5e4f0c6b9626732ae478f95..d1060f432bf8f31217098074d14bb64107f482b6 100644 (file)
--- a/lily/include/stem.hh
+++ b/lily/include/stem.hh
@@ -1,81 +1,53 @@
 /*
   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_i_;
-    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();
-
-    virtual Interval do_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 is_invisible (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 Stencil flag (Grob *);
+  static bool has_interface (Grob *);
+  static void set_spacing_hints (Grob *);
+  
+  DECLARE_SCHEME_CALLBACK (print, (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