lily/super-element.cc

   1 /*
   2   super-elem.cc -- implement Super_elem
   3
   4   source file of the LilyPond music typesetter
   5
   6   (c)  1997--1998 Han-Wen Nienhuys <hanwen@cs.uu.nl>
   7 */
   8
   9 #include "super-element.hh"
  10 #include "line-of-score.hh"
  11 #include "p-score.hh"
  12 #include "string.hh"
  13 #include "paper-outputter.hh"
  14
  15
  16 Super_element::Super_element()
  17 {
  18 }
  19
  20
  21
  22
  23 /**
  24     for administration of what was done already
  25     */
  26 enum Score_element_status {
  27   ORPHAN=0,                     // not yet added to pstaff
  28   VIRGIN,                       // added to pstaff
  29   PREBROKEN,
  30   PREBROKEN_SECOND,
  31   PRECALCING,
  32   PRECALCED,            // calcs before spacing done
  33   SPACING,
  34   SPACED,
  35   BROKEN,
  36   POSTCALCING,          // busy calculating. This is used to trap cyclic deps.
  37   POSTCALCED,           // after spacing calcs done
  38   BREWING,
  39   BREWED,
  40   UNLINKING,
  41   UNLINKED,
  42 };
  43
  44 void
  45 Super_element::pre_processing ()
  46 {
  47   calculate_dependencies (PRECALCING, PRECALCED, &Score_element::do_pre_processing);
  48 }
  49
  50 void
  51 Super_element::space_processing ()
  52 {
  53   calculate_dependencies (SPACING, SPACED, &Score_element::do_space_processing);
  54 }
  55
  56 /* for break processing, use only one status, because copies have to
  57   have correct status. (Previously,
  58   Score_element::handle_[pre]broken_dependencies assigned to status_i_
  59   */
  60 void
  61 Super_element::breakable_col_processing ()
  62 {
  63   calculate_dependencies (PREBROKEN, PREBROKEN, &Score_element::do_breakable_col_processing);
  64   calculate_dependencies (PREBROKEN_SECOND, PREBROKEN_SECOND, &Score_element::handle_prebroken_dependents);
  65 }
  66
  67 void
  68 Super_element::break_processing ()
  69 {
  70   calculate_dependencies (BROKEN, BROKEN, &Score_element::do_break_processing);
  71 }
  72 void
  73 Super_element::post_processing ()
  74 {
  75   calculate_dependencies (POSTCALCING, POSTCALCED, &Score_element::do_post_processing);
  76 }
  77
  78 void
  79 Super_element::output_all ()
  80 {
  81   pscore_l_->outputter_l_->start_line ();
  82   calculate_dependencies (BREWING, BREWED, &Score_element::output_processing);
  83   pscore_l_->outputter_l_->stop_line ();
  84 }
  85
  86
  87
  88 void
  89 Super_element::unlink_all ()
  90 {
  91   calculate_dependencies (UNLINKING, UNLINKED, &Score_element::junk_links);
  92 }
  93