X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fgregorian-ligature.cc;h=0bfdde3efaec88fc3e5a5cab61fb5785c33d9a8f;hb=730dd1aeadf4609b4a08bd08702c1a478f11d372;hp=7b5cfc221a266f4786284578f9495adb507619f9;hpb=2ac91de7c1099097dd38b46b1b47db71d16d1201;p=lilypond.git

diff --git a/lily/gregorian-ligature.cc b/lily/gregorian-ligature.cc
index 7b5cfc221a..0bfdde3efa 100644
--- a/lily/gregorian-ligature.cc
+++ b/lily/gregorian-ligature.cc
@@ -1,22 +1,54 @@
-/*   
+/*
   gregorian-ligature.cc -- implement Gregorian_ligature
 
   source file of the GNU LilyPond music typesetter
 
-  (c) 2003 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+  (c) 2003--2007 Han-Wen Nienhuys <hanwen@xs4all.nl>
 */
+
+#include "gregorian-ligature.hh"
+
 #include "grob.hh"
 
-class Gregorian_ligature {
-public:
-  static bool has_interface (Grob *);
-};
+void check_prefix (string name, int mask, int prefix_set, string *str)
+{
+  if (prefix_set & mask)
+    {
+      if (!str->empty ())
+	*str += ", ";
+      *str += name;
+    }
+}
 
+string
+Gregorian_ligature::prefixes_to_str (Grob *primitive)
+{
+  string str;
+  int prefix_set
+    = scm_to_int (primitive->get_property ("prefix-set"));
+  check_prefix ("virga", VIRGA, prefix_set, &str);
+  check_prefix ("stropha", STROPHA, prefix_set, &str);
+  check_prefix ("inclinatum", INCLINATUM, prefix_set, &str);
+  check_prefix ("auctum", AUCTUM, prefix_set, &str);
+  check_prefix ("descendens", DESCENDENS, prefix_set, &str);
+  check_prefix ("ascendens", ASCENDENS, prefix_set, &str);
+  check_prefix ("oriscus", ORISCUS, prefix_set, &str);
+  check_prefix ("quilisma", QUILISMA, prefix_set, &str);
+  check_prefix ("deminutum", DEMINUTUM, prefix_set, &str);
+  check_prefix ("cavum", CAVUM, prefix_set, &str);
+  check_prefix ("linea", LINEA, prefix_set, &str);
+  return str;
+}
 
 /*
-  CHECK ME -- does prefix-set come from here ? 
- */
-ADD_INTERFACE (Gregorian_ligature, "gregorian-ligature-interface",
+  CHECK ME -- does prefix-set come from here ?
+
+  In a way, yes.  Actually, prefix-set is a property that is written
+  by code of GregorianLigatureEngraver that is virtually invoked by a
+  subclass like VaticanaLigatureEngraver.  The property is lateron
+  read by the associated item class, such as VaticanaLigature.--jr
+*/
+ADD_INTERFACE (Gregorian_ligature,
 	       "A gregorian ligature",
 	       "virga stropha inclinatum auctum descendens ascendens "
 	       "oriscus quilisma deminutum cavum linea pes-or-flexa "