lily/abbreviation-beam.cc

   1 /*
   2   abbreviation-beam.cc -- implement Abbreviation_beam
   3
   4   source file of the GNU LilyPond music typesetter
   5
   6   (c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
   7            Jan Nieuwenhuizen <jan@digicash.com>
   8 */
   9
  10 #include "p-col.hh"
  11 #include "varray.hh"
  12 #include "proto.hh"
  13 #include "dimen.hh"
  14 #include "abbreviation-beam.hh"
  15 #include "misc.hh"
  16 #include "debug.hh"
  17 #include "atom.hh"
  18 #include "molecule.hh"
  19 #include "leastsquares.hh"
  20 #include "stem.hh"
  21 #include "paper-def.hh"
  22 #include "lookup.hh"
  23 #include "stem-info.hh"
  24
  25
  26 IMPLEMENT_IS_TYPE_B1 (Abbreviation_beam, Spanner);
  27
  28 Abbreviation_beam::Abbreviation_beam ()
  29   : Beam ()
  30 {
  31 }
  32
  33 Molecule*
  34 Abbreviation_beam::brew_molecule_p () const
  35 {
  36   /*
  37    todo
  38    */
  39   return Beam::brew_molecule_p ();
  40 #if 0
  41   Molecule *mol_p = new Molecule;
  42   // huh? inter-what
  43   //    Real inter_f = paper ()->interbeam_f ();
  44   Real inter_f = paper ()->internote_f ();
  45   Real x0 = stems[0]->hpos_f ();
  46   for (int j=0; j <stems.size (); j++)
  47     {
  48       Stem *i = stems[j];
  49       Stem * prev = (j > 0)? stems[j-1] : 0;
  50       Stem * next = (j < stems.size ()-1) ? stems[j+1] :0;
  51
  52       Molecule sb = stem_beams (i, next, prev);
  53       Real  x = i->hpos_f ()-x0;
  54       sb.translate (Offset (x, (x * slope_f  + left_y)* inter_f));
  55       mol_p->add (sb);
  56     }
  57   mol_p->translate_axis (x0 - spanned_drul_[LEFT]->absolute_coordinate (X_AXIS), X_AXIS);
  58   return mol_p;
  59 #endif
  60 }
  61
  62 void
  63 Abbreviation_beam::do_print () const
  64 {
  65 #ifndef NPRINT
  66   Beam::do_print ();
  67   Spanner::do_print ();
  68 #endif
  69 }
  70
  71 /*
  72   beams to go with one stem.
  73   */
  74 Molecule
  75 Abbreviation_beam::stem_beams (Stem *here, Stem *next, Stem *prev) const
  76 {
  77   /*
  78    todo
  79     - shorter beams (not reaching outer "stems")
  80       for [:16 c4 c4] and [:16 c1 c1]
  81     - centered beam on [:16 c1 c1] heads, rather than "stems"
  82    */
  83   return Beam::stem_beams (here, next, prev);
  84 }