* lily/grob-pq-engraver.cc (stop_translation_timestep): save up

[lilypond.git] / lily / forbid-break-engraver.cc

diff --git a/lily/forbid-break-engraver.cc b/lily/forbid-break-engraver.cc
index 461b55e9d8eecdb51520c363db2b9efeb03f2299..0ba34fec52818234c12a7b4e0280a68ae154f738 100644 (file)
--- a/lily/forbid-break-engraver.cc
+++ b/lily/forbid-break-engraver.cc
@@ -1,45 +1,59 @@
+/*
+  forbid-break-engraver.cc -- implement Forbid_line_break_engraver
+
+  source file of the GNU LilyPond music typesetter
+
+  (c) 2002--_2005 Han-Wen Nienhuys <hanwen@xs4all.nl>
+*/
 #include "rhythmic-head.hh"
-#include "engraver.hh"
 #include "grob.hh"
 #include "score-engraver.hh"
+#include "input.hh"
+#include "pitch.hh"
+#include "duration.hh"
+#include "moment.hh"
+
+#include "translator.icc"
 
 class Forbid_line_break_engraver : public Engraver
 {
 public:
-  TRANSLATOR_DECLARATIONS(Forbid_line_break_engraver);
-  virtual void start_translation_timestep ();
+  TRANSLATOR_DECLARATIONS (Forbid_line_break_engraver);
+  PRECOMPUTED_VIRTUAL void start_translation_timestep ();
 };
 
-Forbid_line_break_engraver::Forbid_line_break_engraver(){}
-
-ENTER_DESCRIPTION(Forbid_line_break_engraver,
-/* descr */       "Forbid line breaks when note heads are still playing at some point.",
-/* creats*/       "",
-/* accepts */     "",
-/* acks  */      "",
-/* reads */       "busyGrobs",
-/* write */       "");
+Forbid_line_break_engraver::Forbid_line_break_engraver ()
+{
+}
 
 void
-Forbid_line_break_engraver::start_translation_timestep()
+Forbid_line_break_engraver::start_translation_timestep ()
 {
   /*
     Check for running note heads. This should probably be done elsewhere.
-   */
+  */
   SCM busy = get_property ("busyGrobs");
 
-  Moment now = now_mom();
-  while (gh_pair_p (busy) && unsmob_moment (gh_caar (busy))->main_part_ == now.main_part_)
-    busy = gh_cdr (busy);
+  Moment now = now_mom ();
+  while (scm_is_pair (busy) && unsmob_moment (scm_caar (busy))->main_part_ == now.main_part_)
+    busy = scm_cdr (busy);
 
-  
-  while (gh_pair_p (busy))
+  while (scm_is_pair (busy))
     {
-      Grob *g = unsmob_grob (gh_cdar (busy));
-      if (Rhythmic_head::has_interface (g))
+      Grob *g = unsmob_grob (scm_cdar (busy));
+      if (g->internal_has_interface (ly_symbol2scm ("rhythmic-grob-interface")))
        {
-         top_engraver()->forbid_breaks();
+         get_score_engraver ()->forbid_breaks ();
        }
-      busy = gh_cdr(busy);
+      busy = scm_cdr (busy);
     }
 }
+
+
+ADD_TRANSLATOR (Forbid_line_break_engraver,
+               /* descr */ "Forbid line breaks when note heads are still playing at some point.",
+               /* creats*/ "",
+               /* accepts */ "",
+               /* acks  */ "",
+               /* reads */ "busyGrobs",
+               /* write */ "");