X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fpitch-squash-engraver.cc;h=0ccf797d46a679f129b55a4dfb96130a990e4a64;hb=131f941d10d6c6d587ec1f41f735fd7ba07e7ea3;hp=6ea465e78151573eed6aa06ed1742d3d4f7c1fbc;hpb=94375d04f45b415ad705fd444fdb344416f116d9;p=lilypond.git

diff --git a/lily/pitch-squash-engraver.cc b/lily/pitch-squash-engraver.cc
index 6ea465e781..0ccf797d46 100644
--- a/lily/pitch-squash-engraver.cc
+++ b/lily/pitch-squash-engraver.cc
@@ -1,45 +1,47 @@
-/*   
-  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--2001 Han-Wen Nienhuys <hanwen@cs.uu.nl>
-  
- */
+
+  (c) 1997--2005 Han-Wen Nienhuys <hanwen@cs.uu.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);
+  TRANSLATOR_DECLARATIONS (Pitch_squash_engraver);
   virtual void acknowledge_grob (Grob_info);
 };
 
-
 void
 Pitch_squash_engraver::acknowledge_grob (Grob_info i)
 {
   SCM newpos = get_property ("squashedPosition");
-  if (Note_head::has_interface (i.grob_l_))
+  if (scm_is_number (newpos)
+      && Note_head::has_interface (i.grob_))
     {
-      i.grob_l_->set_grob_property ("staff-position", 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 */       "");
+ADD_TRANSLATOR (Pitch_squash_engraver,
+		/* descr */
+		"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.",
+
+		/* creats*/ "",
+		/* accepts */ "",
+		/* acks  */ "note-head-interface",
+		/* reads */ "squashedPosition",
+		/* write */ "");