lily/notehead.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   bool streepjes_b = (position_i_<-1) || (position_i_ > staff_size_i_+1);
  65
  66   Atom  s = p->lookup_l()->ball (balltype_i_);
  67   out = new Molecule (Atom (s));
  68   out->translate (x_dir_ * s.dim_[X_AXIS].length (), X_AXIS);
  69
  70   if (streepjes_b)
  71     {
  72       int dir = sign (position_i_);
  73       int s =(position_i_<-1)
  74         ? -((-position_i_)/2)
  75         : (position_i_-staff_size_i_)/2;
  76
  77       Atom str = p->lookup_l()->streepjes (balltype_i_, s);
  78       Molecule sm;
  79       sm.add (Atom (str));
  80       if (position_i_ % 2)
  81         sm.translate (-inter_f* dir, Y_AXIS);
  82       out->add (sm);
  83     }
  84
  85   out->translate (inter_f*position_i_, Y_AXIS);
  86   return out;
  87 }