lily/bar-column-grav.cc

   1 /*
   2   bar-column-grav.cc -- implement Bar_column_engraver
   3
   4   source file of the GNU LilyPond music typesetter
   5
   6   (c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
   7 */
   8
   9
  10 #include "bar-column-grav.hh"
  11 #include "bar-column.hh"
  12 #include "request.hh"
  13 #include "script.hh"
  14 #include "bar.hh"
  15
  16 Bar_column_engraver::Bar_column_engraver()
  17 {
  18   bar_l_ =0;
  19   barcol_p_ =0;
  20 }
  21
  22
  23 void
  24 Bar_column_engraver::acknowledge_element (Score_elem_info info)
  25 {
  26   if (info.elem_l_->is_type_b (Script::static_name())
  27       && info.req_l_->command()
  28       && info.origin_grav_l_arr_.size() == 1)
  29     {
  30       script_l_arr_.push ((Script*)info.elem_l_->item());
  31     }
  32   else if  (info.origin_grav_l_arr_.size() == 1
  33             && info.elem_l_->is_type_b (Bar::static_name()))
  34     bar_l_ = (Bar*)info.elem_l_->item();
  35
  36   if (bar_l_ && !barcol_p_)
  37     {
  38       barcol_p_ = new Bar_column;
  39       barcol_p_->breakable_b_ =true;
  40       barcol_p_->break_priority_i_ = bar_l_ -> break_priority_i_;
  41       barcol_p_->set_bar (bar_l_);
  42
  43       announce_element (Score_elem_info (barcol_p_, 0));
  44     }
  45
  46   if  (barcol_p_)
  47     {
  48       for (int i=0; i < script_l_arr_.size(); i++)
  49         {
  50           script_l_arr_[i]->breakable_b_ = true;
  51           script_l_arr_[i]->break_priority_i_ = barcol_p_-> break_priority_i_;
  52           barcol_p_->add (script_l_arr_[i]);
  53         }
  54       script_l_arr_.clear();
  55     }
  56 }
  57
  58 void
  59 Bar_column_engraver::do_pre_move_processing()
  60 {
  61   if (barcol_p_)
  62     {
  63       typeset_element (barcol_p_);
  64       barcol_p_ =0;
  65     }
  66 }
  67
  68 void
  69 Bar_column_engraver::do_post_move_processing()
  70 {
  71   script_l_arr_.clear();
  72   bar_l_ =0;
  73 }
  74
  75 IMPLEMENT_IS_TYPE_B1(Bar_column_engraver, Engraver);
  76 ADD_THIS_TRANSLATOR(Bar_column_engraver);