lily/bar-number-grav.cc

   1 /*
   2   bar-number-grav.cc -- implement Bar_number_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-number-grav.hh"
  11 #include "script.hh"
  12 #include "text-def.hh"
  13 #include "command-request.hh"
  14 #include "bar.hh"
  15 #include "time-description.hh"
  16
  17 Bar_number_engraver::Bar_number_engraver()
  18 {
  19   script_p_ =0;
  20 }
  21
  22 static Command_script_req dummy;
  23
  24 void
  25 Bar_number_engraver::acknowledge_element (Score_elem_info i)
  26 {
  27   if (i.origin_grav_l_arr_.size() == 1 &&
  28       i.elem_l_->is_type_b (Bar::static_name()) && !script_p_)
  29     {
  30       Time_description const * time = get_staff_info().time_C_;
  31       if (!time || time->cadenza_b_)
  32         return ;
  33
  34       script_p_ = new Script;
  35       Text_def *td_p =new Text_def;
  36       td_p->text_str_ = time->bars_i_;
  37
  38       script_p_->specs_l_ = td_p;
  39       script_p_->breakable_b_ = true;
  40       script_p_->dir_ = UP;
  41
  42       announce_element (Score_elem_info (script_p_, &dummy));
  43     }
  44 }
  45
  46 void
  47 Bar_number_engraver::do_pre_move_processing()
  48 {
  49   if (script_p_)
  50     {
  51       typeset_element (script_p_);
  52       script_p_ =0;
  53     }
  54 }
  55
  56 IMPLEMENT_IS_TYPE_B1(Bar_number_engraver,Engraver);
  57 ADD_THIS_TRANSLATOR(Bar_number_engraver);