release: 1.3.62

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

diff --git a/lily/include/stem.hh b/lily/include/stem.hh
index 6bef757c911b755851ee34beff3a27925f5576f3..24e0630c76d748a7937a238c3284d6da07e273c9 100644 (file)
--- a/lily/include/stem.hh
+++ b/lily/include/stem.hh
@@ -1,16 +1,17 @@
 /*
   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 "stem-info.hh"
 
 /**the rule attached to the ball.
   takes care of:
@@ -26,96 +27,75 @@
   TODO.
   
   Stem size depends on flag.
-  */
-class Stem : public Item {
 
-    
-  Drul_array<Real> yextent_drul_;
-    
-  /// needed for determining direction/length
-  int staff_size_i_;
+  elt properties:
+
+  beam_dir: direction of the beam (int)
 
-  /**extent of the stem (positions).
-    fractional, since Beam has to adapt them.
-    */
+  dir_force: is direction explicitely specified? (bool)
 
+  /// how many abbrev beam don't reach stem?
+  int beam_gap_i_;
 
-  /**
-    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 Item
+{
 public:
+ static SCM brew_molecule (SCM);
+  
 
-  /// 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_;
+  int flag_i () const;
 
+  int beam_count (Direction) const;
+  void set_beaming (int,  Direction d);
   /** 
     don't print flag when in beam.
     our beam, for aligning abbrev flags
    */
-  Beam* beam_l_;
+  Beam* beam_l () const;
+  Note_head * first_head () const;
+  Drul_array<Note_head*> extremal_heads () const;
 
-  int beams_left_i_;
-  int beams_right_i_;
+  Score_element * support_head () const;
+  Stem (SCM);
 
-  /// 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);
 
-  DECLARE_MY_RUNTIME_TYPEINFO;
+  Stem_info calc_stem_info () const;
 
-  Real hpos_f () const;
   Real chord_start_f () const;
-  
+  Direction get_direction () 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;
+  int heads_i () 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;
+  Interval head_positions() const;
+
+public:
+  friend class Stem_tremolo;   // ugh.
+  Real get_default_stem_end_position () const;
+  void position_noteheads();
+
+  Real stem_end_position () const;
+  static Real off_callback (Score_element const*, Axis);
+  Molecule flag () const;
+
+  SCM member_before_line_breaking ();
+  static SCM before_line_breaking (SCM);
+  static Interval dim_callback (Score_element const*,Axis);
+  SCM member_brew_molecule() const;
+
+  void set_spacing_hints () ;
 };
 #endif