X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fpitch-squash-engraver.cc;h=d9796ff0e0789feb3c5d842228b8c4be968282da;hb=47db9a3883d726ca53e2133a3b2298f78dd6a32e;hp=b974bb894261ff9856f87db769fbc2737f9c4e6d;hpb=01378c85f23e4bdbc07cd1f3b06ddfd573377bb9;p=lilypond.git

diff --git a/lily/pitch-squash-engraver.cc b/lily/pitch-squash-engraver.cc
index b974bb8942..d9796ff0e0 100644
--- a/lily/pitch-squash-engraver.cc
+++ b/lily/pitch-squash-engraver.cc
@@ -1,47 +1,63 @@
-/*   
-  pitch-squash-grav.cc --  implement Pitch_squash_engraver
-  
-  source file of the GNU LilyPond music typesetter
-  
-  (c)  1997--2003 Han-Wen Nienhuys <hanwen@cs.uu.nl>
-  
- */
+/*
+  This file is part of LilyPond, the GNU music typesetter.
+
+  Copyright (C) 1997--2015 Han-Wen Nienhuys <hanwen@xs4all.nl>
+
+  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 "engraver.hh"
+
 #include "staff-symbol-referencer.hh"
 #include "note-head.hh"
 #include "rhythmic-head.hh"
-#include "engraver.hh"
+#include "grob.hh"
 
-class Pitch_squash_engraver : public Engraver {
+class Pitch_squash_engraver : public Engraver
+{
 public:
-  TRANSLATOR_DECLARATIONS(Pitch_squash_engraver);
-  virtual void acknowledge_grob (Grob_info);
+  TRANSLATOR_DECLARATIONS (Pitch_squash_engraver);
+  DECLARE_ACKNOWLEDGER (note_head);
 };
 
-
 void
-Pitch_squash_engraver::acknowledge_grob (Grob_info i)
+Pitch_squash_engraver::acknowledge_note_head (Grob_info i)
 {
   SCM newpos = get_property ("squashedPosition");
-  if (gh_number_p (newpos)
-      && Note_head::has_interface (i.grob_))
-    {
-      i.grob_->set_grob_property ("staff-position", newpos);
-    }
+  if (scm_is_number (newpos))
+    i.grob ()->set_property ("staff-position", newpos);
 }
 
-
-
-Pitch_squash_engraver::Pitch_squash_engraver()
+Pitch_squash_engraver::Pitch_squash_engraver ()
 {
 }
 
-ENTER_DESCRIPTION(Pitch_squash_engraver,
-/* descr */       "Treat all pitches as middle C.  Note that the notes move, but "
-"the locations of accidentals stay the same. "
-"Set the position field of all note heads to zero. This useful for "
-"making a single line staff that demonstrates the rhythm of a melody.",
-/* creats*/       "",
-/* accepts */     "",
-/* acks  */      "note-head-interface",
-/* reads */       "squashedPosition",
-/* write */       "");
+#include "translator.icc"
+ADD_ACKNOWLEDGER (Pitch_squash_engraver, note_head);
+ADD_TRANSLATOR (Pitch_squash_engraver,
+                /* doc */
+                "Set the vertical position of note heads to"
+                " @code{squashedPosition}, if that property is set.  This can"
+                " be used to make a single-line staff demonstrating the"
+                " rhythm of a melody.",
+
+                /* create */
+                "",
+
+                /* read */
+                "squashedPosition ",
+
+                /* write */
+                ""
+               );