X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fgregorian-ligature-engraver.cc;h=fccf35355f0bf61208c48be3327aae645cd2bffc;hb=068eadf4ad2d70a0eec8589921ed6a12742b6c63;hp=31263e9a128c4b26204a492a91043e0a46fb63ca;hpb=31568c504806f35aac420a394c9eab07abd9faa7;p=lilypond.git

diff --git a/lily/gregorian-ligature-engraver.cc b/lily/gregorian-ligature-engraver.cc
index 31263e9a12..fccf35355f 100644
--- a/lily/gregorian-ligature-engraver.cc
+++ b/lily/gregorian-ligature-engraver.cc
@@ -1,9 +1,20 @@
 /*
-  gregorian-ligature-engraver.cc -- implement Gregorian_ligature_engraver
+  This file is part of LilyPond, the GNU music typesetter.
 
-  source file of the GNU LilyPond music typesetter
+  Copyright (C) 2003--2011 Juergen Reuter <reuter@ipd.uka.de>
 
-  (c) 2003--2006 Juergen Reuter <reuter@ipd.uka.de>
+  LilyPond is free software: you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+
+  LilyPond is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with LilyPond.  If not, see <http://www.gnu.org/licenses/>.
 */
 
 #include "gregorian-ligature-engraver.hh"
@@ -14,8 +25,12 @@
 #include "pitch.hh"
 #include "spanner.hh"
 #include "staff-symbol-referencer.hh"
+#include "stream-event.hh"
 #include "warn.hh"
 
+/* ASSIGN_EVENT_ONCE */
+#include "translator.icc"
+
 /*
  * This abstract class is the common superclass for all ligature
  * engravers for Gregorian chant notation.  It cares for the musical
@@ -32,19 +47,13 @@ Gregorian_ligature_engraver::Gregorian_ligature_engraver ()
   pes_or_flexa_req_ = 0;
 }
 
-bool
-Gregorian_ligature_engraver::try_music (Music *m)
+void
+Gregorian_ligature_engraver::listen_pes_or_flexa (Stream_event *ev)
 {
-  if (m->is_mus_type ("pes-or-flexa-event"))
-    {
-      pes_or_flexa_req_ = m;
-      return true;
-    }
-  else
-    return Ligature_engraver::try_music (m);
+  ASSIGN_EVENT_ONCE (pes_or_flexa_req_, ev);
 }
 
-void fix_prefix (char *name, int mask,
+void fix_prefix (char const *name, int mask,
 		 int *current_set, int min_set, int max_set,
 		 Grob *primitive)
 {
@@ -86,7 +95,7 @@ void fix_prefix_set (int *current_set, int min_set, int max_set, Grob *primitive
 
 void check_and_fix_all_prefixes (vector<Grob_info> primitives)
 {
-  /* Check for illegal head modifier combinations */
+  /* Check for invalid head modifier combinations */
   for (vsize i = 0; i < primitives.size (); i++)
     {
       Grob *primitive = primitives[i].grob ();
@@ -204,26 +213,28 @@ provide_context_info (vector<Grob_info> primitives)
   for (vsize i = 0; i < primitives.size (); i++)
     {
       Grob *primitive = primitives[i].grob ();
-      Music *music_cause = primitives[i].music_cause ();
+      Stream_event *event_cause = primitives[i].event_cause ();
       int context_info = 0;
-      int pitch = unsmob_pitch (music_cause->get_property ("pitch"))->steps ();
+      int pitch = unsmob_pitch (event_cause->get_property ("pitch"))->steps ();
       int prefix_set = scm_to_int (primitive->get_property ("prefix-set"));
 
       if (prefix_set & PES_OR_FLEXA)
-	if (!i) // ligature may not start with 2nd head of pes or flexa
-	  primitive->warning (_ ("can't apply `\\~' on first head of ligature"));
-	else if (pitch > prev_pitch) // pes
-	  {
-	    prev_context_info |= PES_LOWER;
-	    context_info |= PES_UPPER;
-	  }
-	else if (pitch < prev_pitch) // flexa
-	  {
-	    prev_context_info |= FLEXA_LEFT;
-	    context_info |= FLEXA_RIGHT;
-	  }
-	else // (pitch == prev_pitch)
-	  primitive->warning (_ ("can't apply `\\~' on heads with identical pitch"));
+	{
+	  if (!i) // ligature may not start with 2nd head of pes or flexa
+	    primitive->warning (_ ("cannot apply `\\~' on first head of ligature"));
+	  else if (pitch > prev_pitch) // pes
+	    {
+	      prev_context_info |= PES_LOWER;
+	      context_info |= PES_UPPER;
+	    }
+	  else if (pitch < prev_pitch) // flexa
+	    {
+	      prev_context_info |= FLEXA_LEFT;
+	      context_info |= FLEXA_RIGHT;
+	    }
+	  else // (pitch == prev_pitch)
+	    primitive->warning (_ ("cannot apply `\\~' on heads with identical pitch"));
+	}
       if (prev_prefix_set & DEMINUTUM)
 	context_info |= AFTER_DEMINUTUM;