lily/head-column.cc

   1 /*
   2   head-column.cc -- implement Head_column
   3
   4   source file of the GNU LilyPond music typesetter
   5
   6   (c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
   7 */
   8
   9 #include "debug.hh"
  10 #include "head-column.hh"
  11 #include "note-head.hh"
  12 #include "stem.hh"
  13 #include "script.hh"
  14
  15 Head_column::Head_column()
  16 {
  17   stem_l_ = 0;
  18   dir_ =CENTER;
  19 }
  20
  21 void
  22 Head_column::do_substitute_dependency (Score_elem*o,
  23                                        Score_elem*n)
  24 {
  25   Script_column::do_substitute_dependency (o,n);
  26   if (o->name() == Note_head::static_name ())
  27     {
  28       head_l_arr_.substitute ((Note_head*)o->item(),
  29                               (n)? (Note_head*)n->item() : 0);
  30     }
  31   if (stem_l_ == o)
  32     {
  33       stem_l_ = n ? (Stem*)n->item():0;
  34     }
  35 }
  36
  37
  38 void
  39 Head_column::set (Stem*stem_l)
  40 {
  41   stem_l_ = stem_l;
  42   Score_elem::add_dependency (stem_l);
  43   for (int i=0; i < script_l_arr_.size(); i++)
  44     script_l_arr_[i]->set_stem (stem_l);
  45 }
  46
  47 void
  48 Head_column::add (Script *script_l)
  49 {
  50   Script_column::add (script_l) ;
  51   if  (stem_l_)
  52     script_l->set_stem (stem_l_);
  53 }
  54 void
  55 Head_column::add (Note_head *n_l)
  56 {
  57   add_support (n_l);
  58   head_l_arr_.push (n_l);
  59 }
  60
  61
  62
  63 IMPLEMENT_IS_TYPE_B1(Head_column,Script_column);
  64
  65 void
  66 Head_column::do_print() const
  67 {
  68 #ifndef NPRINT
  69   DOUT << "heads: " << head_l_arr_.size();
  70 #endif
  71 }
  72
  73 void
  74 Head_column::do_pre_processing()
  75 {
  76   if (!dir_)
  77     {
  78       if (stem_l_)
  79         dir_ = stem_l_->dir_;
  80     }
  81   Script_column::do_pre_processing();
  82 }