lily/paper-score.cc

   1 /*
   2   p-score.cc -- implement Paper_score
   3
   4   source file of the GNU LilyPond music typesetter
   5
   6   (c) 1996,  1997--1999 Han-Wen Nienhuys <hanwen@cs.uu.nl>
   7 */
   8
   9 #include "main.hh"
  10 #include "debug.hh"
  11 #include "lookup.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_of_score * line_p = new Line_of_score;
  31   line_p->pscore_l_ = this;
  32   element_smob_list_ = scm_protect_object (gh_cons (line_p->self_scm_, SCM_EOL));
  33   line_l_ = line_p;
  34 }
  35
  36 Paper_score::Paper_score (Paper_score const &s)
  37   : Music_output (s)
  38 {
  39   assert (false);
  40 }
  41
  42 Paper_score::~Paper_score ()
  43 {
  44   scm_unprotect_object (element_smob_list_);
  45 }
  46
  47 void
  48 Paper_score::typeset_element (Score_element * elem_p)
  49 {
  50   elem_p->pscore_l_ = this;
  51
  52   gh_set_cdr_x(element_smob_list_,
  53                gh_cons (elem_p->self_scm_, gh_cdr (element_smob_list_)));
  54   elem_p->set_elt_property ("full-name",
  55                             gh_str02scm((char*)elem_p->name()));
  56
  57   scm_unprotect_object (elem_p->self_scm_);
  58 }
  59
  60 void
  61 Paper_score::add_column (Paper_column *p)
  62 {
  63   p->set_rank (col_l_arr_.size ());
  64   col_l_arr_.push (p);
  65   typeset_element(p);
  66 }
  67
  68 void
  69 Paper_score::print () const
  70 {
  71 #ifndef NPRINT
  72   if (!flower_dstream)
  73     return ;
  74
  75   DEBUG_OUT << "Paper_score { ";
  76   DEBUG_OUT << "\n elements: ";
  77
  78   for (SCM p = gh_cdr (element_smob_list_);
  79        p != SCM_EOL;
  80        p = gh_cdr(p))
  81     gh_display (gh_car (p));
  82   DEBUG_OUT << "}\n";
  83 #endif
  84 }
  85
  86 int
  87 Paper_score::find_col_idx (Paper_column const *c) const
  88 {
  89   Paper_column const *what = c;
  90
  91   return col_l_arr_.find_i ((Paper_column*)what);
  92 }
  93
  94 Array<Column_x_positions>
  95 Paper_score::calc_breaking ()
  96 {
  97   Break_algorithm *algorithm_p=0;
  98   Array<Column_x_positions> sol;
  99
 100   algorithm_p = new Gourlay_breaking ;
 101   algorithm_p->set_pscore (this);
 102   sol = algorithm_p->solve ();
 103   delete algorithm_p;
 104
 105   return sol;
 106 }
 107
 108
 109
 110 void
 111 Paper_score::process ()
 112 {
 113
 114   print ();
 115   *mlog << _ ("Preprocessing elements...") << " " << flush;
 116   line_l_->breakable_col_processing ();
 117   fixup_refpoints ();
 118   line_l_->pre_processing ();
 119
 120   *mlog << '\n' << _ ("Calculating column positions...") << " " << flush;
 121   line_l_->space_processing ();
 122
 123   Array<Column_x_positions> breaking = calc_breaking ();
 124   line_l_->break_into_pieces (breaking);
 125
 126   for (SCM s = element_smob_list_; gh_pair_p (s); s = gh_cdr (s))
 127     {
 128       Score_element *sc = unsmob_element (gh_car (s));
 129       sc->do_break_processing ();
 130     }
 131   for (SCM s = element_smob_list_; gh_pair_p (s); s = gh_cdr (s))
 132     {
 133       Score_element *sc = unsmob_element (gh_car (s));
 134       sc->handle_broken_dependencies ();
 135     }
 136
 137   outputter_l_ = new Paper_outputter ;
 138   outputter_l_->output_header ();
 139
 140   outputter_l_->output_version();
 141
 142   if (header_global_p)
 143     outputter_l_->output_scope (header_global_p, "mudela");
 144   if (header_l_)
 145     outputter_l_->output_scope (header_l_, "mudela");
 146
 147   outputter_l_->output_comment (_ ("Outputting Score, defined at: "));
 148   outputter_l_->output_comment (origin_str_);
 149
 150   if (paper_l_->scope_p_)
 151     outputter_l_->output_scope (paper_l_->scope_p_, "mudelapaper");
 152
 153   SCM scm = gh_list (ly_symbol2scm ("experimental-on"), SCM_UNDEFINED);
 154   outputter_l_->output_scheme (scm);
 155   scm = gh_list (ly_symbol2scm ("header-end"), SCM_UNDEFINED);
 156   outputter_l_->output_scheme (scm);
 157
 158
 159   /*
 160     This is tricky: we have to put the font definitions before the
 161     actual output, but we don't know all fonts in advanced: generating
 162     the output might trigger loading of a new font.  So we store the
 163     place to insert the font definitions, generate the output and then
 164     insert the definitions
 165
 166    */
 167   SCM before_output = outputter_l_->last_cons_;
 168
 169
 170   fixup_refpoints ();
 171   line_l_->output_lines ();
 172
 173
 174   SCM font_names = ly_quote_scm (all_fonts_global_p->font_descriptions ());
 175   gh_set_cdr_x (before_output,
 176                 gh_cons  (gh_list (ly_symbol2scm ("define-fonts"),
 177                                    font_names,
 178                                    SCM_UNDEFINED),
 179                           gh_cdr (before_output)));
 180
 181   Paper_stream* psp = paper_l_->paper_stream_p ();
 182   outputter_l_->dump_onto (psp);
 183   // huh?
 184   delete outputter_l_;
 185
 186   outputter_l_ = 0;
 187   delete psp;
 188
 189 }
 190
 191 Link_array<Item>
 192 Paper_score::broken_col_range (Item const*l, Item const*r) const
 193 {
 194   Link_array<Item> ret;
 195
 196   l = l->column_l ();
 197   r = r->column_l ();
 198
 199   int  start = l
 200     ? find_col_idx (dynamic_cast<Paper_column*> ((Item*)l))+1
 201     : 0;
 202
 203   int stop = r
 204     ? find_col_idx (dynamic_cast<Paper_column*>((Item*)r))
 205     : col_l_arr_.size ();
 206
 207   while (start < stop)
 208     {
 209       Paper_column *c = col_l_arr_[start];
 210       if (c->breakable_b () && !c->line_l_)
 211         ret.push (c);
 212       start++;
 213     }
 214
 215   return ret;
 216 }
 217
 218
 219 void
 220 Paper_score::fixup_refpoints ()
 221 {
 222   for (SCM s = element_smob_list_; gh_pair_p (s); s = gh_cdr (s))
 223     {
 224       SCM e = gh_car (s);
 225       if (SMOB_IS_TYPE_B(Score_element, e))
 226         {
 227           Score_element * se = unsmob_element (e);
 228           se->fixup_refpoint ();
 229         }
 230     }
 231 }