release commit

[lilypond.git] / lily / pitch-squash-engraver.cc

diff --git a/lily/pitch-squash-engraver.cc b/lily/pitch-squash-engraver.cc
index 86eb47298050d9031df0cb8fe92a9383081511e2..f3ed2be37ab3bd1b6c25eda093fc46058d1a0e96 100644 (file)
--- a/lily/pitch-squash-engraver.cc
+++ b/lily/pitch-squash-engraver.cc
@@ -1,33 +1,45 @@
-/*   
-  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--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
-  
- */
+
+  (c) 1997--2005 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:
-  VIRTUAL_COPY_CONS (Translator);
-  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.elem_l_))
-    {
-      i.elem_l_->set_grob_property ("staff-position", newpos);
-    }
+  if (scm_is_number (newpos))
+    i.grob ()->set_property ("staff-position", newpos);
 }
 
-ADD_THIS_TRANSLATOR (Pitch_squash_engraver);
+Pitch_squash_engraver::Pitch_squash_engraver ()
+{
+}
 
+#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 */ "",
+               /* accept */ "",
+               /* read */ "squashedPosition",
+               /* write */ "");