X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fpitch-squash-engraver.cc;h=50d2d862ac2efbc391cd0c29e68fc0ac0ce26fb6;hb=730c54a571ab3b6c30e02be5f93c876abee0f9a7;hp=98607e15bb05b264a2c4c4bbd83dc6acd53beddc;hpb=7aabfb20c46e0a1de41698ddc6859ccd3a6dea85;p=lilypond.git

diff --git a/lily/pitch-squash-engraver.cc b/lily/pitch-squash-engraver.cc
index 98607e15bb..50d2d862ac 100644
--- a/lily/pitch-squash-engraver.cc
+++ b/lily/pitch-squash-engraver.cc
@@ -1,46 +1,44 @@
-/*   
-  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--2003 Han-Wen Nienhuys <hanwen@cs.uu.nl>
-  
- */
+
+  (c) 1997--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
+*/
 #include "staff-symbol-referencer.hh"
 #include "note-head.hh"
 #include "rhythmic-head.hh"
 #include "engraver.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_))
-    {
-      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 noteheads 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 */ "");