lily/gregorian-ligature.cc

   1 /*
   2   gregorian-ligature.cc -- implement Gregorian_ligature
   3
   4   source file of the GNU LilyPond music typesetter
   5
   6   (c) 2003 Han-Wen Nienhuys <hanwen@cs.uu.nl>
   7 */
   8 #include "grob.hh"
   9 #include "gregorian-ligature.hh"
  10 #include "string.hh"
  11
  12 void check_prefix (String name, int mask, int prefix_set, String *str)
  13 {
  14   if (prefix_set & mask)
  15     {
  16       if (!str->empty_b ())
  17         *str += ", ";
  18       *str += name;
  19     }
  20 }
  21
  22 String
  23 Gregorian_ligature::prefixes_to_str (Grob *primitive)
  24 {
  25   String str;
  26   int prefix_set =
  27     gh_scm2int (primitive->get_grob_property ("prefix-set"));
  28   check_prefix ("virga", VIRGA, prefix_set, &str);
  29   check_prefix ("stropha", STROPHA, prefix_set, &str);
  30   check_prefix ("inclinatum", INCLINATUM, prefix_set, &str);
  31   check_prefix ("auctum", AUCTUM, prefix_set, &str);
  32   check_prefix ("descendens", DESCENDENS, prefix_set, &str);
  33   check_prefix ("ascendens", ASCENDENS, prefix_set, &str);
  34   check_prefix ("oriscus", ORISCUS, prefix_set, &str);
  35   check_prefix ("quilisma", QUILISMA, prefix_set, &str);
  36   check_prefix ("deminutum", DEMINUTUM, prefix_set, &str);
  37   check_prefix ("cavum", CAVUM, prefix_set, &str);
  38   check_prefix ("linea", LINEA, prefix_set, &str);
  39   return str;
  40 }
  41
  42 /*
  43   CHECK ME -- does prefix-set come from here ?
  44
  45   In a way, yes.  Actually, prefix-set is a property that is written
  46   by code of GregorianLigatureEngraver that is virtually invoked by a
  47   subclass like VaticanaLigatureEngraver.  The property is lateron
  48   read by the associated item class, such as VaticanaLigature.--jr
  49  */
  50 ADD_INTERFACE (Gregorian_ligature, "gregorian-ligature-interface",
  51                "A gregorian ligature",
  52                "virga stropha inclinatum auctum descendens ascendens "
  53                "oriscus quilisma deminutum cavum linea pes-or-flexa "
  54                "context-info prefix-set");