lily/include/stem.hh

   1 /*
   2   This file is part of LilyPond, the GNU music typesetter.
   3
   4   Copyright (C) 1996--2009 Han-Wen Nienhuys
   5
   6   LilyPond is free software: you can redistribute it and/or modify
   7   it under the terms of the GNU General Public License as published by
   8   the Free Software Foundation, either version 3 of the License, or
   9   (at your option) any later version.
  10
  11   LilyPond is distributed in the hope that it will be useful,
  12   but WITHOUT ANY WARRANTY; without even the implied warranty of
  13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14   GNU General Public License for more details.
  15
  16   You should have received a copy of the GNU General Public License
  17   along with LilyPond.  If not, see <http://www.gnu.org/licenses/>.
  18 */
  19
  20 #ifndef STEM_HH
  21 #define STEM_HH
  22
  23 #include "std-vector.hh"
  24 #include "lily-proto.hh"
  25 #include "stem-info.hh"
  26 #include "grob-interface.hh"
  27
  28 class Stem
  29 {
  30 public:
  31   static vector<int> note_head_positions (Grob *);
  32   static int duration_log (Grob *);
  33   static void set_beaming (Grob *, int, Direction d);
  34   static int get_beaming (Grob *, Direction d);
  35   static Spanner *get_beam (Grob *);
  36   static Grob *first_head (Grob *);
  37   static Grob *last_head (Grob *);
  38   static Drul_array<Grob *> extremal_heads (Grob *);
  39   static Grob *support_head (Grob *);
  40   static void add_head (Grob *me, Grob *n);
  41   static Stem_info get_stem_info (Grob *);
  42   static Real chord_start_y (Grob *);
  43   static void set_stemend (Grob *, Real);
  44   static Slice beam_multiplicity (Grob *);
  45   static Direction get_default_dir (Grob*);
  46   static Real thickness (Grob *);
  47   static int head_count (Grob *);
  48   static bool is_invisible (Grob *);
  49   static bool is_normal_stem (Grob *);
  50   static bool is_cross_staff (Grob *);
  51   static Interval head_positions (Grob *);
  52   static Real stem_end_position (Grob *);
  53   static Stencil flag (Grob *);
  54   static Stencil get_translated_flag (Grob*);
  55   DECLARE_GROB_INTERFACE();
  56   static void set_spacing_hints (Grob *);
  57
  58   DECLARE_SCHEME_CALLBACK (print, (SCM));
  59   DECLARE_SCHEME_CALLBACK (calc_default_direction, (SCM));
  60   DECLARE_SCHEME_CALLBACK (offset_callback, (SCM element));
  61   DECLARE_SCHEME_CALLBACK (calc_direction, (SCM));
  62   DECLARE_SCHEME_CALLBACK (calc_beaming, (SCM));
  63   DECLARE_SCHEME_CALLBACK (calc_length, (SCM));
  64   DECLARE_SCHEME_CALLBACK (calc_stem_end_position, (SCM));
  65   DECLARE_SCHEME_CALLBACK (calc_stem_info, (SCM));
  66   DECLARE_SCHEME_CALLBACK (calc_positioning_done, (SCM));
  67   DECLARE_SCHEME_CALLBACK (width, (SCM smob));
  68   DECLARE_SCHEME_CALLBACK (pure_height, (SCM, SCM, SCM));
  69   DECLARE_SCHEME_CALLBACK (height, (SCM));
  70   DECLARE_SCHEME_CALLBACK (calc_cross_staff, (SCM));
  71   DECLARE_SCHEME_CALLBACK (calc_flag, (SCM));
  72 };
  73 #endif