* input/regression/key-signature-cancellation.ly (Module): new file.

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

diff --git a/lily/pitch-squash-engraver.cc b/lily/pitch-squash-engraver.cc
index 86eb47298050d9031df0cb8fe92a9383081511e2..73211dfd984d241021a0d2edc0b13a1d54101eab 100644 (file)
--- a/lily/pitch-squash-engraver.cc
+++ b/lily/pitch-squash-engraver.cc
@@ -3,7 +3,7 @@
   
   source file of the GNU LilyPond music typesetter
   
-  (c)  1997--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+  (c) 1997--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
   
  */
 #include "staff-symbol-referencer.hh"
@@ -13,7 +13,7 @@
 
 class Pitch_squash_engraver : public Engraver {
 public:
-  VIRTUAL_COPY_CONS (Translator);
+  TRANSLATOR_DECLARATIONS (Pitch_squash_engraver);
   virtual void acknowledge_grob (Grob_info);
 };
 
@@ -22,12 +22,29 @@ void
 Pitch_squash_engraver::acknowledge_grob (Grob_info i)
 {
   SCM newpos = get_property ("squashedPosition");
-  if (Note_head::has_interface (i.elem_l_))
+  if (scm_is_number (newpos)
+      && Note_head::has_interface (i.grob_))
     {
-      i.elem_l_->set_grob_property ("staff-position", newpos);
+      i.grob_->set_property ("staff-position", newpos);
     }
 }
 
-ADD_THIS_TRANSLATOR (Pitch_squash_engraver);
 
 
+Pitch_squash_engraver::Pitch_squash_engraver ()
+{
+}
+
+ENTER_DESCRIPTION (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 */       "");