Issue 5167/6: Changes: show \markup xxx = ... \etc assignments

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

diff --git a/lily/forbid-break-engraver.cc b/lily/forbid-break-engraver.cc
index c51e0b0ff5d8ad702eb5b44a357a5bc87fdbe8f4..c5e4b7b06e4096ea394170a89d5aaf778d189641 100644 (file)
--- a/lily/forbid-break-engraver.cc
+++ b/lily/forbid-break-engraver.cc
@@ -1,26 +1,42 @@
 /*
-  forbid-break-engraver.cc -- implement Forbid_line_break_engraver
+  This file is part of LilyPond, the GNU music typesetter.
 
-  source file of the GNU LilyPond music typesetter
+  Copyright (C) 2002--_2005 Han-Wen Nienhuys <hanwen@xs4all.nl>
 
-  (c) 2002--_2005 Han-Wen Nienhuys <hanwen@xs4all.nl>
+  LilyPond is free software: you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+
+  LilyPond is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with LilyPond.  If not, see <http://www.gnu.org/licenses/>.
 */
-#include "rhythmic-head.hh"
+#include "context.hh"
+#include "duration.hh"
+#include "engraver.hh"
 #include "grob.hh"
-#include "score-engraver.hh"
 #include "input.hh"
 #include "pitch.hh"
-#include "duration.hh"
-#include "moment.hh"
+#include "rhythmic-head.hh"
+
+#include "translator.icc"
 
 class Forbid_line_break_engraver : public Engraver
 {
 public:
   TRANSLATOR_DECLARATIONS (Forbid_line_break_engraver);
-  PRECOMPUTED_VIRTUAL void start_translation_timestep ();
+  void start_translation_timestep ();
 };
 
-Forbid_line_break_engraver::Forbid_line_break_engraver (){}
+Forbid_line_break_engraver::Forbid_line_break_engraver (Context *c)
+  : Engraver (c)
+{
+}
 
 void
 Forbid_line_break_engraver::start_translation_timestep ()
@@ -31,26 +47,35 @@ Forbid_line_break_engraver::start_translation_timestep ()
   SCM busy = get_property ("busyGrobs");
 
   Moment now = now_mom ();
-  while (scm_is_pair (busy) && unsmob_moment (scm_caar (busy))->main_part_ == now.main_part_)
+  while (scm_is_pair (busy) && unsmob<Moment> (scm_caar (busy))->main_part_ == now.main_part_)
     busy = scm_cdr (busy);
 
   while (scm_is_pair (busy))
     {
-      Grob *g = unsmob_grob (scm_cdar (busy));
-      if (Rhythmic_head::has_interface (g))
-       {
-         get_score_engraver ()->forbid_breaks ();
-       }
+      Grob *g = unsmob<Grob> (scm_cdar (busy));
+      if (g->internal_has_interface (ly_symbol2scm ("rhythmic-grob-interface")))
+        context ()->get_score_context ()->set_property ("forbidBreak", SCM_BOOL_T);
       busy = scm_cdr (busy);
     }
 }
 
-#include "translator.icc"
+void
+Forbid_line_break_engraver::boot ()
+{
+
+}
 
 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 */ "");
+                /* doc */
+                "Forbid line breaks when note heads are still playing at some"
+                " point.",
+
+                /* create */
+                "",
+
+                /* read */
+                "busyGrobs ",
+
+                /* write */
+                "forbidBreak "
+               );