lily/global-translator.cc

   1 /*
   2   global-translator.cc -- implement Global_translator
   3
   4   source file of the GNU LilyPond music typesetter
   5
   6   (c)  1997--1999 Han-Wen Nienhuys <hanwen@cs.uu.nl>
   7 */
   8
   9 #include "global-translator.hh"
  10 #include "music-iterator.hh"
  11 #include "debug.hh"
  12
  13 Global_translator::Global_translator()
  14 {
  15 }
  16
  17 void
  18 Global_translator::add_moment_to_process (Moment m)
  19 {
  20   if (m  > final_mom_)
  21     return;
  22
  23   for (int i=0; i <  extra_mom_pq_.size(); i++)
  24     if (extra_mom_pq_[i] == m)
  25       return;
  26   extra_mom_pq_.insert (m);
  27 }
  28
  29 void
  30 Global_translator::modify_next (Moment &w)
  31 {
  32   while (extra_mom_pq_.size() &&
  33          extra_mom_pq_.front() <= w)
  34
  35     w =extra_mom_pq_.get();
  36 }
  37
  38 int
  39 Global_translator::moments_left_i() const
  40 {
  41   return extra_mom_pq_.size();
  42 }
  43
  44 void
  45 Global_translator::prepare (Moment m)
  46 {
  47   prev_mom_  = now_mom_;
  48   now_mom_ = m;
  49 }
  50
  51 Moment
  52 Global_translator::now_mom () const
  53 {
  54   return now_mom_;
  55 }
  56
  57
  58
  59 Music_output*
  60 Global_translator::get_output_p()
  61 {
  62   return 0;
  63 }
  64
  65 void
  66 Global_translator::process ()
  67 {
  68 }
  69 void
  70 Global_translator::start ()
  71 {
  72 }
  73 void
  74 Global_translator::finish ()
  75 {
  76 }
  77
  78 void
  79 Global_translator::run_iterator_on_me (Music_iterator * iter)
  80 {
  81   while (iter->ok() || moments_left_i ())
  82     {
  83       Moment w;
  84       w.set_infinite (1);
  85       if (iter->ok())
  86         {
  87           w = iter->next_moment();
  88           DEBUG_OUT << "proccing: " << w << '\n';
  89           if (flower_dstream && !flower_dstream->silent_b ("walking"))
  90             iter->print();
  91         }
  92
  93       modify_next (w);
  94       prepare (w);
  95
  96       if (flower_dstream && !flower_dstream->silent_b ("walking"))
  97         print();
  98
  99       iter->process_and_next (w);
 100       process();
 101     }
 102 }