X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fpitch-squash-engraver.cc;h=764566faab23d9630d4add101d7b3f5f2fa4e658;hb=48ddc05527f9894f322bcb8becd94110ba446291;hp=3df136ee217756f51ee7b3ed7a54aa54a99e76f1;hpb=d9b43b93f2c885409bafdb157138158f65cc49aa;p=lilypond.git

diff --git a/lily/pitch-squash-engraver.cc b/lily/pitch-squash-engraver.cc
index 3df136ee21..764566faab 100644
--- a/lily/pitch-squash-engraver.cc
+++ b/lily/pitch-squash-engraver.cc
@@ -1,45 +1,52 @@
-/*   
-  pitch-squash-grav.cc --  implement Pitch_squash_engraver
-  
+/*
+  pitch-squash-engraver.cc -- implement Pitch_squash_engraver
+
   source file of the GNU LilyPond music typesetter
-  
-  (c)  1997--2002 Han-Wen Nienhuys <hanwen@cs.uu.nl>
-  
- */
+
+  (c) 1997--2009 Han-Wen Nienhuys <hanwen@xs4all.nl>
+*/
+
+#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 (Note_head::has_interface (i.grob_l_))
-    {
-      i.grob_l_->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*/       "",
-/* 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 */
+		""
+		);