lily/paper-def.cc

   1 /*
   2   paper-def.cc -- implement Paper_def
   3
   4   source file of the GNU LilyPond music typesetter
   5
   6   (c)  1997--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
   7 */
   8
   9 #include <math.h>
  10 #include "all-font-metrics.hh"
  11 #include "string.hh"
  12 #include "misc.hh"
  13 #include "paper-def.hh"
  14 #include "debug.hh"
  15 #include "lookup.hh"
  16 #include "score-engraver.hh"
  17 #include "paper-score.hh"
  18 #include "identifier.hh"
  19 #include "main.hh"
  20 #include "scope.hh"
  21 #include "dictionary-iter.hh"
  22 #include "file-results.hh" // urg? header_global_p
  23 #include "paper-outputter.hh"
  24 #include "paper-stream.hh"
  25
  26
  27 Paper_def::Paper_def ()
  28 {
  29   lookup_p_tab_p_ = new Hash_table<int, Lookup*>;
  30   lookup_p_tab_p_->hash_func_ = int_hash;
  31 }
  32
  33
  34 Paper_def::~Paper_def ()
  35 {
  36   for (Hash_table_iter<int, Lookup*> ai(*lookup_p_tab_p_); ai.ok (); ai++)
  37     {
  38       delete ai.val ();
  39     }
  40
  41   delete lookup_p_tab_p_;
  42 }
  43
  44 Paper_def::Paper_def (Paper_def const&s)
  45   : Music_output_def (s)
  46 {
  47   shape_int_a_ = s.shape_int_a_;
  48   lookup_p_tab_p_ = new Hash_table<int, Lookup*>;
  49   lookup_p_tab_p_->hash_func_ = int_hash;
  50
  51   for (Hash_table_iter<int, Lookup*> ai(*s.lookup_p_tab_p_); ai.ok (); ai++)
  52     {
  53       Lookup * l = new Lookup (*ai.val ());
  54       set_lookup (ai.key(), l);
  55     }
  56 }
  57
  58
  59 Real
  60 Paper_def::get_var (String s) const
  61 {
  62   return get_realvar (ly_symbol2scm (s.ch_C()));
  63 }
  64
  65 Real
  66 Paper_def::get_realvar (SCM s) const
  67 {
  68   if (!scope_p_->elem_b (s))
  69     error (_f ("unknown paper variable: `%s'", ly_symbol2string (s)));
  70   Real * p = scope_p_->elem (s)->access_content_Real (false);
  71   if (!p)
  72     {
  73       error (_("not a real variable"));
  74       return 0.0;
  75     }
  76
  77   return *p;
  78 }
  79
  80
  81 Interval
  82 Paper_def::line_dimensions_int (int n) const
  83 {
  84   SCM s = default_properties_.get (ly_symbol2scm ("margin-shape"));
  85   if (!gh_pair_p (s))
  86     {
  87       Real lw =  get_var ("linewidth");
  88       Real ind = n? 0.0:get_var ("indent");
  89
  90       return Interval (ind, lw);
  91     }
  92
  93
  94   SCM last = SCM_EOL;
  95   while (gh_pair_p (s) && n --)
  96     {
  97       last = s;
  98       s = gh_cdr (s);
  99     }
 100
 101   if (s == SCM_EOL)
 102     {
 103       s = last;
 104     }
 105
 106   SCM pair = gh_car (s);
 107
 108   return Interval (gh_scm2double (gh_car (pair)),
 109                    gh_scm2double (gh_cdr (pair)));
 110 }
 111
 112 void
 113 Paper_def::set_lookup (int i, Lookup*l)
 114 {
 115   if (lookup_p_tab_p_->elem_b (i))
 116     {
 117       delete lookup_p_tab_p_->elem (i);
 118     }
 119   (*lookup_p_tab_p_)[i] = l;
 120 }
 121
 122
 123 /*
 124   junkme.
 125  */
 126 Real
 127 Paper_def::interbeam_f (int multiplicity_i) const
 128 {
 129   if (multiplicity_i <= 3)
 130     return get_var ("interbeam");
 131   else
 132     return get_var ("interbeam4");
 133 }
 134
 135
 136 void
 137 Paper_def::print () const
 138 {
 139 #ifndef NPRINT
 140   Music_output_def::print ();
 141   DEBUG_OUT << "Paper {";
 142   for (Hash_table_iter<int, Lookup*> ai(*lookup_p_tab_p_); ai.ok (); ai++)
 143     {
 144       DEBUG_OUT << "Lookup: " << ai.key () << " = " << ai.val ()->font_name_ << '\n';
 145     }
 146   DEBUG_OUT << "}\n";
 147 #endif
 148 }
 149
 150 Lookup const *
 151 Paper_def::lookup_l (int i) const
 152 {
 153   return (*lookup_p_tab_p_)[i];
 154 }
 155
 156
 157
 158 int Paper_def::default_count_i_ = 0;
 159
 160 int
 161 Paper_def::get_next_default_count () const
 162 {
 163   return default_count_i_ ++;
 164 }
 165
 166 void
 167 Paper_def::reset_default_count()
 168 {
 169   default_count_i_ = 0;
 170 }
 171
 172
 173 Paper_stream*
 174 Paper_def::paper_stream_p () const
 175 {
 176   String outname = base_output_str ();
 177
 178   if (outname != "-")
 179     outname += String (".") + output_global_ch;
 180   progress_indication (_f ("paper output to %s...",
 181                            outname == "-" ? String ("<stdout>") : outname));
 182
 183
 184   target_str_global_array.push (outname);
 185   return new Paper_stream (outname);
 186 }
 187
 188
 189 String
 190 Paper_def::base_output_str () const
 191 {
 192   String str = get_default_output ();
 193
 194   if (str.empty_b ())
 195     {
 196       str = default_outname_base_global;
 197       int def = get_next_default_count ();
 198       if (def)
 199         str += "-" + to_str (def);
 200     }
 201   return str;
 202 }
 203
 204