lily/bar-reg.cc

   1 /*
   2   bar-reg.cc -- implement Bar_register
   3
   4   source file of the LilyPond music typesetter
   5
   6   (c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
   7 */
   8
   9 #include "bar-reg.hh"
  10 #include "bar.hh"
  11 #include "command-request.hh"
  12 //#include "score-column.hh"
  13 #include "time-description.hh"
  14
  15 Bar_register::Bar_register()
  16 {
  17     post_move_processing();
  18 }
  19
  20 bool
  21 Bar_register::try_request(Request*r_l)
  22 {
  23     Command_req* c_l = r_l->command();
  24     if (!c_l|| !c_l->bar())
  25         return false;
  26     Bar_req  * b= c_l->bar();
  27     if (bar_req_l_ && bar_req_l_->compare(*b))
  28         return false;
  29
  30     bar_req_l_ = b;
  31
  32     return true;
  33 }
  34
  35 void
  36 Bar_register::process_requests()
  37 {
  38     if (bar_req_l_ ) {
  39         bar_p_ = new Bar(bar_req_l_->type_str_);
  40     } else if (!get_staff_info().time_C_->whole_in_measure_) {
  41         bar_p_ = new Bar("|");
  42     }
  43
  44     if (bar_p_){
  45         announce_element(Staff_elem_info(bar_p_, bar_req_l_) );
  46     }
  47 }
  48
  49
  50
  51 void
  52 Bar_register::split_bar(Bar *& pre, Bar * no, Bar * &post)
  53 {
  54     String s= no->type;
  55     if (s == ":|:") {
  56         pre = new Bar(":|");
  57         post = new Bar("|:");
  58     }else if (s=="|:") {
  59         post = new Bar(s);
  60     } else {
  61         pre = new Bar(*no);
  62     }
  63 }
  64
  65 void
  66 Bar_register::pre_move_processing()
  67 {
  68       if (bar_p_) {
  69           Bar * post_p =0;
  70           Bar * pre_p =0;
  71           split_bar(pre_p, bar_p_, post_p);
  72
  73           typeset_breakable_item(pre_p, bar_p_, post_p);
  74           bar_p_ =0;
  75       }
  76 }
  77
  78 void
  79 Bar_register::post_move_processing()
  80 {
  81     bar_req_l_ = 0;
  82     bar_p_ =0;
  83 }
  84
  85 IMPLEMENT_STATIC_NAME(Bar_register);
  86 ADD_THIS_REGISTER(Bar_register);
  87
  88