lily/staff-sym-grav.cc

   1 /*
   2   staff-sym-reg.cc -- implement Staff_sym_engraver
   3
   4   source file of the GNU LilyPond music typesetter
   5
   6   (c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
   7 */
   8
   9 #include "staff-sym-grav.hh"
  10 #include "staff-sym.hh"
  11 #include "score.hh"
  12 #include "p-col.hh"
  13
  14 const NO_LINES = 5;
  15
  16 void
  17 Staff_sym_engraver::fill_staff_info (Staff_info&i)
  18 {
  19   i.staff_sym_l_ = span_p_;
  20 }
  21
  22 Staff_sym_engraver::~Staff_sym_engraver()
  23 {
  24   assert (!span_p_);
  25 }
  26
  27 Staff_sym_engraver::Staff_sym_engraver()
  28 {
  29    span_p_ = 0;
  30 }
  31
  32 void
  33 Staff_sym_engraver::do_creation_processing()
  34 {
  35   span_p_ = new Staff_symbol (NO_LINES);
  36   span_p_->set_bounds(LEFT,get_staff_info().command_pcol_l ());
  37   announce_element (Score_elem_info (span_p_, 0));
  38 }
  39
  40 void
  41 Staff_sym_engraver::do_removal_processing()
  42 {
  43   span_p_->set_bounds(RIGHT,get_staff_info().command_pcol_l ());
  44   typeset_element (span_p_);
  45   span_p_ =0;
  46 }
  47
  48
  49
  50 IMPLEMENT_IS_TYPE_B1(Staff_sym_engraver,Engraver);
  51 ADD_THIS_ENGRAVER(Staff_sym_engraver);