lily/staff-sym-reg.cc

   1 /*
   2   staff-sym-reg.cc -- implement Staff_sym_register
   3
   4   source file of the LilyPond music typesetter
   5
   6   (c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
   7 */
   8
   9 #include "staff-sym-reg.hh"
  10 #include "staff-sym.hh"
  11 #include "score.hh"
  12 #include "p-col.hh"
  13
  14 const NO_LINES = 5;
  15
  16 Staff_sym_register::Staff_sym_register()
  17 {
  18    span_p_ = 0;
  19    last_mom_ =0;
  20 }
  21
  22 void
  23 Staff_sym_register::post_move_processing()
  24 {
  25     if (!span_p_ && !last_mom_) {
  26         span_p_= new Staff_symbol(NO_LINES);
  27         span_p_->left_col_l_ =
  28             get_staff_info().command_pcol_l()->postbreak_p_; // ugh
  29     }
  30     if (!last_mom_) {
  31         last_mom_ = get_staff_info().score_l()->last();
  32     }
  33 }
  34
  35 void
  36 Staff_sym_register::process_requests()
  37 {
  38     announce_element(Staff_elem_info(span_p_, 0));
  39 }
  40
  41 void
  42 Staff_sym_register::pre_move_processing()
  43 {
  44     Staff_info i=get_staff_info();
  45     if ( span_p_ && i.when() == last_mom_) {
  46         span_p_->right_col_l_ = i.command_pcol_l()->prebreak_p_;
  47         typeset_element(span_p_);
  48         span_p_ =0;
  49     }
  50 }
  51
  52 IMPLEMENT_STATIC_NAME(Staff_sym_register);
  53 ADD_THIS_REGISTER(Staff_sym_register);
  54 Staff_sym_register::~Staff_sym_register()
  55 {
  56     assert(!span_p_);
  57     delete span_p_;
  58 }