The grand \paper -> \layout, \bookpaper -> \paper renaming.

[lilypond.git] / lily / swallow-perf.cc

diff --git a/lily/swallow-perf.cc b/lily/swallow-perf.cc
index 332964af408d088720a1dc468110e0d7113b5143..e70149069f4d876430422099d9c50e4fa2836653 100644 (file)
--- a/lily/swallow-perf.cc
+++ b/lily/swallow-perf.cc
@@ -3,11 +3,36 @@
 
   source file of the GNU LilyPond music typesetter
 
-  (c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
+  (c) 1997--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
 */
 
-#include "swallow-perf.hh"
+#include "performer.hh"
 
+class Swallow_performer : public Performer
+{
+public:
+  TRANSLATOR_DECLARATIONS (Swallow_performer);
+protected:
+  virtual bool try_music (Music*);
+};
 
-IMPLEMENT_IS_TYPE_B1(Swallow_performer, Performer);
-ADD_THIS_PERFORMER(Swallow_performer);
+bool
+Swallow_performer::try_music (Music *m)
+{
+  if (m->is_mus_type ("busy-playing-event")
+      || m->is_mus_type ("melisma-playing-event"))
+    return false;
+  else
+    return true; 
+}
+
+Swallow_performer::Swallow_performer ()
+{}
+
+ENTER_DESCRIPTION (Swallow_performer,
+/* descr */       "",
+/* creats*/       "",
+/* accepts */     "general-music",
+/* acks  */      "",
+/* reads */       "",
+/* write */       "");