lily/note-column.cc

   1 /*
   2   note-column.cc -- implement Note_column
   3
   4   source file of the LilyPond music typesetter
   5
   6   (c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
   7 */
   8
   9 #include "note-column.hh"
  10 #include "debug.hh"
  11 #include "script.hh"
  12 #include "notehead.hh"
  13 #include "stem.hh"
  14
  15 IMPLEMENT_STATIC_NAME(Note_column);
  16
  17 void
  18 Note_column::add(Stem*stem_l)
  19 {
  20     stem_l_ = stem_l;
  21     add_support(stem_l);
  22 }
  23
  24 void
  25 Note_column::add(Notehead* n_l)
  26 {
  27     assert(!n_l->rest_b_);
  28     head_l_arr_.push(n_l);
  29     add_support(n_l);
  30 }
  31
  32 Note_column::Note_column()
  33 {
  34     stem_l_ = 0;
  35     h_shift_b_ =false;
  36     dir_i_ =0;
  37 }
  38
  39 void
  40 Note_column::sort()
  41 {
  42     head_l_arr_.sort( Notehead::compare);
  43 }
  44
  45 Interval_t<int>
  46 Note_column::head_positions_interval()const
  47 {
  48     (    (Note_column*)this)->sort();
  49     return Interval_t<int> ( head_l_arr_[0]->position_i_,
  50                              head_l_arr_.top()->position_i_);
  51
  52 }
  53
  54
  55 void
  56 Note_column::do_pre_processing()
  57 {
  58     if (!dir_i_){
  59         if (stem_l_)
  60             dir_i_ = stem_l_->dir_i_;
  61         else
  62             dir_i_ = (head_positions_interval().center() >=  5) ? -1 : 1;
  63     }
  64 }