Web-ja: update introduction

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

diff --git a/lily/forbid-break-engraver.cc b/lily/forbid-break-engraver.cc
index 07472512600af3ad82227fc9bc8892603ff544d5..c5e4b7b06e4096ea394170a89d5aaf778d189641 100644 (file)
--- a/lily/forbid-break-engraver.cc
+++ b/lily/forbid-break-engraver.cc
@@ -1,46 +1,81 @@
-#include "rhythmic-head.hh"
+/*
+  This file is part of LilyPond, the GNU music typesetter.
+
+  Copyright (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 "context.hh"
+#include "duration.hh"
 #include "engraver.hh"
 #include "grob.hh"
-#include "score-engraver.hh"
+#include "input.hh"
+#include "pitch.hh"
+#include "rhythmic-head.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);
+  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 */     "general-music",
-/* acks  */      "",
-/* reads */       "busyGrobs",
-/* write */       "");
+Forbid_line_break_engraver::Forbid_line_break_engraver (Context *c)
+  : Engraver (c)
+{
+}
 
 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))
-       {
-         top_engraver()->forbid_breaks();
-       }
-      busy = gh_cdr(busy);
+      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);
     }
 }
+
+void
+Forbid_line_break_engraver::boot ()
+{
+
+}
+
+ADD_TRANSLATOR (Forbid_line_break_engraver,
+                /* doc */
+                "Forbid line breaks when note heads are still playing at some"
+                " point.",
+
+                /* create */
+                "",
+
+                /* read */
+                "busyGrobs ",
+
+                /* write */
+                "forbidBreak "
+               );