lily/note-head.cc

   1 /*
   2   notehead.cc -- implement Note_head
   3
   4   source file of the GNU LilyPond music typesetter
   5
   6   (c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
   7 */
   8
   9 #include "misc.hh"
  10 #include "dots.hh"
  11 #include "note-head.hh"
  12 #include "dimen.hh"
  13 #include "debug.hh"
  14 #include "paper-def.hh"
  15 #include "lookup.hh"
  16 #include "molecule.hh"
  17 #include "musical-request.hh"
  18
  19
  20 Note_head::Note_head ()
  21 {
  22   x_dir_ = CENTER;
  23   staff_size_i_= 8;             // UGH
  24   position_i_ = 0;
  25   extremal_i_ = 0;
  26 }
  27
  28 void
  29 Note_head::do_pre_processing ()
  30 {
  31   // 8 ball looks the same as 4 ball:
  32   if (balltype_i_ > 2)
  33     balltype_i_ = 2;
  34   if (dots_l_)                  // move into Rhythmic_head?
  35     dots_l_->position_i_ = position_i_;
  36 }
  37
  38 IMPLEMENT_IS_TYPE_B1(Note_head,Rhythmic_head);
  39
  40
  41 int
  42 Note_head::compare (Note_head *const  &a, Note_head * const &b)
  43 {
  44   return a->position_i_ - b->position_i_;
  45 }
  46
  47 Interval
  48 Note_head::do_width () const
  49 {
  50   Atom a =  paper ()->lookup_l()->ball (balltype_i_);
  51   Interval i = a.dim_[X_AXIS];
  52   i+= x_dir_ * i.length ();
  53   return i;
  54 }
  55
  56 Molecule*
  57 Note_head::brew_molecule_p() const
  58 {
  59   Molecule*out = 0;
  60   Paper_def *p = paper();
  61   Real inter_f = p->internote_f ();
  62
  63   // ugh
  64   int streepjes_i = abs (position_i_) < staff_size_i_/2
  65     ? 0
  66     : (abs(position_i_) - staff_size_i_/2) /2;
  67
  68   Atom  s = p->lookup_l()->ball (balltype_i_);
  69   out = new Molecule (Atom (s));
  70   out->translate_axis (x_dir_ * s.dim_[X_AXIS].length (), X_AXIS);
  71
  72   if (streepjes_i)
  73     {
  74       int dir = sign (position_i_);
  75       Atom streepje = p->lookup_l ()->streepje (balltype_i_);
  76
  77       int parity =  (position_i_ % 2) ? 1 : 0;
  78
  79
  80       for (int i=0; i < streepjes_i; i++)
  81         {
  82           Atom s = streepje;
  83           s.translate_axis (-dir * inter_f * (i*2 + parity),
  84                            Y_AXIS);
  85           out->add (s);
  86         }
  87     }
  88
  89   out->translate_axis (inter_f*position_i_, Y_AXIS);
  90   return out;
  91 }