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
  11 #include "string.hh"
  12 #include "misc.hh"
  13 #include "paper-def.hh"
  14 #include "debug.hh"
  15 #include "lookup.hh"
  16 #include "main.hh"
  17 #include "scope.hh"
  18 #include "file-results.hh" // urg? header_global_p
  19 #include "paper-stream.hh"
  20
  21 Paper_def::Paper_def ()
  22 {
  23   lookup_p_tab_p_ = new map<int, Lookup*>;
  24 }
  25
  26
  27 Paper_def::~Paper_def ()
  28 {
  29   for (map<int,Lookup*>::const_iterator ai = lookup_p_tab_p_->begin();
  30        ai != lookup_p_tab_p_->end (); ai++)
  31     {
  32       delete (*ai).second;
  33     }
  34
  35   delete lookup_p_tab_p_;
  36 }
  37
  38 Paper_def::Paper_def (Paper_def const&s)
  39   : Music_output_def (s)
  40 {
  41   lookup_p_tab_p_ = new map<int, Lookup*>;
  42
  43   for (map<int,Lookup*>::const_iterator ai = s.lookup_p_tab_p_->begin();
  44        ai != s.lookup_p_tab_p_->end (); ai++)
  45     {
  46       Lookup * l = new Lookup (* (*ai).second);
  47       set_lookup ((*ai).first, l);
  48     }
  49 }
  50
  51
  52 Real
  53 Paper_def::get_var (String s) const
  54 {
  55   return get_realvar (ly_symbol2scm (s.ch_C()));
  56 }
  57
  58 SCM
  59 Paper_def::get_scmvar (String s) const
  60 {
  61   return  scope_p_->scm_elem (ly_symbol2scm (s.ch_C()));
  62 }
  63
  64 Real
  65 Paper_def::get_realvar (SCM s) const
  66 {
  67   if (!scope_p_->elem_b (s))
  68     {
  69       programming_error ("unknown paper variable: " +  ly_symbol2string (s));
  70       return 0.0;
  71     }
  72   SCM val = scope_p_->scm_elem (s);
  73   if (gh_number_p (val))
  74     {
  75       return gh_scm2double (val);
  76     }
  77   else
  78     {
  79       non_fatal_error (_("not a real variable"));
  80       return 0.0;
  81     }
  82 }
  83
  84 /*
  85   FIXME. This is broken until we have a generic way of
  86   putting lists inside the \paper block.
  87  */
  88 Interval
  89 Paper_def::line_dimensions_int (int n) const
  90 {
  91   Real lw =  get_var ("linewidth");
  92   Real ind = n? 0.0:get_var ("indent");
  93
  94   return Interval (ind, lw);
  95 }
  96
  97 void
  98 Paper_def::set_lookup (int i, Lookup*l)
  99 {
 100   map<int,Lookup*> :: const_iterator it (lookup_p_tab_p_->find (i));
 101   if (it != lookup_p_tab_p_->end ())
 102     {
 103       delete (*it).second;
 104     }
 105   (*lookup_p_tab_p_)[i] = l;
 106 }
 107
 108
 109 /*
 110   junkme.
 111  */
 112 Real
 113 Paper_def::interbeam_f (int multiplicity_i) const
 114 {
 115   if (multiplicity_i <= 3)
 116     return get_var ("interbeam");
 117   else
 118     return get_var ("interbeam4");
 119 }
 120
 121
 122 void
 123 Paper_def::print () const
 124 {
 125 #ifndef NPRINT
 126   Music_output_def::print ();
 127   DEBUG_OUT << "Paper {";
 128   for (map<int,Lookup*>::const_iterator ai = lookup_p_tab_p_->begin();
 129        ai != lookup_p_tab_p_->end (); ai++)
 130     {
 131       DEBUG_OUT << "Lookup: " << (*ai).first
 132                 << " = " << (*ai).second->font_name_ << '\n';
 133     }
 134   DEBUG_OUT << "}\n";
 135 #endif
 136 }
 137
 138 Lookup const *
 139 Paper_def::lookup_l (int i) const
 140 {
 141   return (*lookup_p_tab_p_)[i];
 142 }
 143
 144
 145
 146 int Paper_def::default_count_i_ = 0;
 147
 148 int
 149 Paper_def::get_next_default_count () const
 150 {
 151   return default_count_i_ ++;
 152 }
 153
 154 void
 155 Paper_def::reset_default_count()
 156 {
 157   default_count_i_ = 0;
 158 }
 159
 160
 161 Paper_stream*
 162 Paper_def::paper_stream_p () const
 163 {
 164   String outname = base_output_str ();
 165
 166   if (outname != "-")
 167     outname += String (".") + output_global_ch;
 168   progress_indication (_f ("paper output to %s...",
 169                            outname == "-" ? String ("<stdout>") : outname));
 170
 171
 172   target_str_global_array.push (outname);
 173   return new Paper_stream (outname);
 174 }
 175
 176
 177 String
 178 Paper_def::base_output_str () const
 179 {
 180   String str = get_default_output ();
 181
 182   if (str.empty_b ())
 183     {
 184       str = default_outname_base_global;
 185       int def = get_next_default_count ();
 186       if (def)
 187         str += "-" + to_str (def);
 188     }
 189   return str;
 190 }
 191
 192