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--1999 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 /**
  17     for administration of what was done already
  18     */
  19 enum Score_element_status {
  20   ORPHAN=0,                     // not yet added to pstaff
  21   VIRGIN,                       // added to pstaff
  22   PREBROKEN,
  23   PREBROKEN_SECOND,
  24   PRECALCING,
  25   PRECALCED,            // calcs before spacing done
  26   SPACING,
  27   SPACED,
  28   BROKEN,
  29   POSTCALCING,          // busy calculating. This is used to trap cyclic deps.
  30   POSTCALCED,           // after spacing calcs done
  31   BREWING,
  32   BREWED,
  33 };
  34
  35 void
  36 Super_element::pre_processing ()
  37 {
  38   calculate_dependencies (PRECALCED, PRECALCING, &Score_element::do_pre_processing);
  39 }
  40
  41 void
  42 Super_element::space_processing ()
  43 {
  44   calculate_dependencies (SPACED, SPACING, &Score_element::do_space_processing);
  45 }
  46
  47 /* for break processing, use only one status, because copies have to
  48   have correct status. (Previously,
  49   Score_element::handle_[pre]broken_dependencies assigned to status_i_
  50   */
  51 void
  52 Super_element::breakable_col_processing ()
  53 {
  54   calculate_dependencies (PREBROKEN, PREBROKEN, &Score_element::do_breakable_col_processing);
  55   calculate_dependencies (PREBROKEN_SECOND, PREBROKEN_SECOND, &Score_element::handle_prebroken_dependents);
  56 }
  57
  58 void
  59 Super_element::break_processing ()
  60 {
  61   calculate_dependencies (BROKEN, BROKEN, &Score_element::do_break_processing);
  62 }
  63 void
  64 Super_element::post_processing ()
  65 {
  66   calculate_dependencies (POSTCALCED, POSTCALCING, &Score_element::do_post_processing);
  67 }
  68
  69 void
  70 Super_element::output_all ()
  71 {
  72   calculate_dependencies (BREWED, BREWING, &Score_element::output_processing);
  73 }
  74
  75
  76
  77