lily/paper-score.cc

   1 /*
   2   paper-score.cc -- implement Paper_score
   3
   4   source file of the GNU LilyPond music typesetter
   5
   6   (c) 1996--2001 Han-Wen Nienhuys <hanwen@cs.uu.nl>
   7 */
   8
   9 #include "main.hh"
  10 #include "debug.hh"
  11 #include "font-metric.hh"
  12 #include "spanner.hh"
  13 #include "paper-def.hh"
  14 #include "line-of-score.hh"
  15 #include "paper-column.hh"
  16 #include "paper-score.hh"
  17 #include "paper-column.hh"
  18 #include "scope.hh"
  19 #include "gourlay-breaking.hh"
  20 #include "paper-stream.hh"
  21 #include "paper-outputter.hh"
  22 #include "file-results.hh"
  23 #include "misc.hh"
  24 #include "all-font-metrics.hh"
  25
  26 Paper_score::Paper_score ()
  27 {
  28   paper_l_ =0;
  29   outputter_l_ =0;
  30   line_l_ = 0;
  31   main_smob_ = SCM_EOL;
  32 }
  33
  34 void
  35 Paper_score::typeset_line (Line_of_score *l)
  36 {
  37   if (!line_l_)
  38     {
  39       line_l_ = l;              // ugh.
  40     }
  41   main_smob_ = gh_cons (l->self_scm (), main_smob_);
  42   l->pscore_l_ = this;
  43
  44   /*
  45     We don't unprotect l->self_scm (), we haven't got any place else to
  46     protect it from collection.  */
  47
  48 }
  49
  50 Paper_score::Paper_score (Paper_score const &s)
  51   : Music_output (s)
  52 {
  53   assert (false);
  54 }
  55
  56 Array<Column_x_positions>
  57 Paper_score::calc_breaking ()
  58 {
  59   Break_algorithm *algorithm_p=0;
  60   Array<Column_x_positions> sol;
  61
  62   algorithm_p = new Gourlay_breaking ;
  63   algorithm_p->set_pscore (this);
  64   sol = algorithm_p->solve ();
  65   delete algorithm_p;
  66
  67   return sol;
  68 }
  69
  70 /*
  71   urg. clean me
  72  */
  73 void
  74 Paper_score::process ()
  75 {
  76   if (verbose_global_b)
  77     progress_indication (_f ("Element count %d ",  line_l_->element_count ()));
  78
  79
  80   progress_indication (_ ("Preprocessing elements...") + " ");
  81
  82   /*
  83     Be sure to set breakability on first & last column.
  84    */
  85   Link_array<Grob> pc (line_l_->column_l_arr ());
  86
  87   pc[0]->set_grob_property ("breakable", SCM_BOOL_T);
  88   pc.top ()->set_grob_property ("breakable", SCM_BOOL_T);
  89
  90   line_l_->pre_processing ();
  91
  92   Array<Column_x_positions> breaking = calc_breaking ();
  93   line_l_->break_into_pieces (breaking);
  94
  95   outputter_l_ = paper_l_->paper_outputter_p ();
  96 ;
  97   outputter_l_->output_header ();
  98   outputter_l_->output_version ();
  99
 100   progress_indication ("\n");
 101
 102   if (global_header_p)
 103     {
 104       Scope gh (global_header_p);
 105       outputter_l_->output_scope (&gh, "lilypond");
 106       outputter_l_->write_header_fields_to_file (&gh);
 107     }
 108   if (header_l_)
 109     {
 110       outputter_l_->output_scope (header_l_, "lilypond");
 111       outputter_l_->write_header_fields_to_file (header_l_);
 112     }
 113
 114   outputter_l_->output_comment (_ ("Outputting Score, defined at: "));
 115   outputter_l_->output_comment (origin_str_);
 116
 117   if (paper_l_->scope_p_)
 118     outputter_l_->output_scope (paper_l_->scope_p_, "lilypondpaper");
 119
 120   SCM scm = gh_list (ly_symbol2scm ("header-end"), SCM_UNDEFINED);
 121   outputter_l_->output_scheme (scm);
 122
 123   line_l_->output_lines ();
 124
 125   scm = gh_list (ly_symbol2scm ("end-output"), SCM_UNDEFINED);
 126   outputter_l_->output_scheme (scm);
 127
 128   progress_indication ("\n");
 129
 130   // huh?
 131   delete outputter_l_;
 132   outputter_l_ = 0;
 133
 134   if (verbose_global_b)
 135     ly_display_scm (scm_gc_stats ());
 136 }