lily/bar-number-grav.cc

   1 /*
   2   bar-number-grav.cc -- implement Bar_number_grav
   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
  16 Bar_number_grav::Bar_number_grav()
  17 {
  18   number_i_ =1;
  19   script_p_ =0;
  20 }
  21
  22 static Command_script_req dummy;
  23
  24 void
  25 Bar_number_grav::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
  31         script_p_ = new Script;
  32         Text_def *td_p =new Text_def;
  33         td_p->text_str_ = number_i_++;
  34         script_p_->specs_l_ = td_p;
  35         script_p_->breakable_b_ = true;
  36         script_p_->dir_i_ = 1;
  37
  38         announce_element (Score_elem_info (script_p_, &dummy));
  39     }
  40 }
  41
  42 void
  43 Bar_number_grav::do_pre_move_processing()
  44 {
  45   if ( script_p_)
  46     {
  47         typeset_element (script_p_);
  48         script_p_ =0;
  49     }
  50 }
  51
  52 IMPLEMENT_IS_TYPE_B1(Bar_number_grav,Engraver);
  53 ADD_THIS_ENGRAVER(Bar_number_grav);