X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fbar-number-engraver.cc;h=82bc09f0ed02160e009868013bb31fcb9299f517;hb=eaa41b4e4dc1d3b893c5a75711f26db6a7f5fa18;hp=cadf996c9a7248bc4b1ba9547d1d9e6c5fe80d31;hpb=e53b6ddc057f5419b4bc6219f0cf6132a487a305;p=lilypond.git

diff --git a/lily/bar-number-engraver.cc b/lily/bar-number-engraver.cc
index cadf996c9a..82bc09f0ed 100644
--- a/lily/bar-number-engraver.cc
+++ b/lily/bar-number-engraver.cc
@@ -1,107 +1,99 @@
 /*
-  bar-number-engraver.cc -- implement Bar_number_engraver
+  This file is part of LilyPond, the GNU music typesetter.
 
-  source file of the GNU LilyPond music typesetter
+  Copyright (C) 1997--2011 Han-Wen Nienhuys <hanwen@xs4all.nl>
 
-  (c) 1997--2004 Han-Wen Nienhuys <hanwen@cs.uu.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 "lily-guile.hh"
 #include "paper-column.hh"
 #include "output-def.hh"
 #include "side-position-interface.hh"
-#include "item.hh"
-#include "moment.hh"
 #include "engraver.hh"
 #include "context.hh"
+#include "grob-array.hh"
 
-/*
-  
-TODO: detect the top staff (stavesFound), and acknowledge staff-group
-system-start-delims. If we find these, and the top staff is in the
-staff-group, add padding to the bar number.
+#include "translator.icc"
 
+/*
+  TODO: detect the top staff (stavesFound), and acknowledge staff-group
+  system-start-delims. If we find these, and the top staff is in the
+  staff-group, add padding to the bar number.
 */
-
-
 class Bar_number_engraver : public Engraver
 {
 protected:
-  Item* text_;
+  Item *text_;
 protected:
-  virtual void stop_translation_timestep ();
-  virtual void acknowledge_grob (Grob_info);
-  virtual void process_music ();
+  void stop_translation_timestep ();
+  DECLARE_ACKNOWLEDGER (break_alignment);
+  void process_music ();
   void create_items ();
-  TRANSLATOR_DECLARATIONS (Bar_number_engraver );
+  TRANSLATOR_DECLARATIONS (Bar_number_engraver);
 };
 
-
 void
 Bar_number_engraver::process_music ()
 {
-  // todo include (&&!time->cadenza_b_)
-
   SCM wb = get_property ("whichBar");
-  
+
   if (scm_is_string (wb))
     {
-      SCM smp = get_property ("measurePosition");
-      
-      Moment mp = (unsmob_moment (smp)) ? *unsmob_moment (smp) : Moment (0);
+      Moment mp (robust_scm2moment (get_property ("measurePosition"), Moment (0)));
       if (mp.main_part_ == Rational (0))
 	{
 	  SCM bn = get_property ("currentBarNumber");
 	  SCM proc = get_property ("barNumberVisibility");
-	  if (ly_c_number_p (bn) && ly_c_procedure_p (proc)
-	      && to_boolean (scm_call_1(proc, bn)))
+	  if (scm_is_number (bn) && ly_is_procedure (proc)
+	      && to_boolean (scm_call_1 (proc, bn)))
 	    {
 	      create_items ();
 	      // guh.
 	      text_->set_property
-		("text", scm_makfrom0str (to_string (scm_to_int (bn)).to_str0 ()));
+		("text", scm_number_to_string (bn, scm_from_int (10)));
 	    }
 	}
     }
-
 }
 
-
-
 Bar_number_engraver::Bar_number_engraver ()
 {
-  text_ =0;
+  text_ = 0;
 }
 
-					       
 void
-Bar_number_engraver::acknowledge_grob (Grob_info inf)
+Bar_number_engraver::acknowledge_break_alignment (Grob_info inf)
 {
-  Grob * s = inf.grob_;
+  Grob *s = inf.grob ();
   if (text_
-      && dynamic_cast<Item*> (s)
-      && s->get_property ("break-align-symbol") == ly_symbol2scm ("left-edge"))
+      && dynamic_cast<Item *> (s))
     {
-      /*
-	By default this would land on the Paper_column -- so why
-	doesn't it work when you leave this out?  */
       text_->set_parent (s, X_AXIS);
     }
 }
 
-void 
+void
 Bar_number_engraver::stop_translation_timestep ()
 {
   if (text_)
     {
-      text_->set_property ("side-support-elements", get_property ("stavesFound"));
-      
-      text_ =0;
+      text_->set_object ("side-support-elements",
+			 grob_list_to_grob_array (get_property ("stavesFound")));
+      text_ = 0;
     }
 }
 
-
 void
 Bar_number_engraver::create_items ()
 {
@@ -109,18 +101,29 @@ Bar_number_engraver::create_items ()
     return;
 
   text_ = make_item ("BarNumber", SCM_EOL);
-  Side_position_interface::set_axis (text_,Y_AXIS);
 }
 
-ENTER_DESCRIPTION (Bar_number_engraver,
-/* descr */       "A bar number is created whenever measurePosition is zero. It is\n"
-		   "put on top of all staves, and appears only at  left side of the staff. "
-		   "The staves are taken from @code{stavesFound}, which is maintained by "
-		   "@code{@ref{Staff_collecting_engraver}}. "
-		   ,
-		   
-/* creats*/       "BarNumber",
-/* accepts */     "",
-/* acks  */      "break-aligned-interface",
-/* reads */       "currentBarNumber stavesFound barNumberVisibility" ,
-/* write */       "");
+
+ADD_ACKNOWLEDGER (Bar_number_engraver, break_alignment);
+
+ADD_TRANSLATOR (Bar_number_engraver,
+		/* doc */
+		"A bar number is created whenever @code{measurePosition} is"
+		" zero and when there is a bar line (i.e., when"
+		" @code{whichBar} is set).  It is put on top of all staves,"
+		" and appears only at the left side of the staff.  The staves"
+		" are taken from @code{stavesFound}, which is maintained by"
+		" @ref{Staff_collecting_engraver}.",
+
+		/* create */
+		"BarNumber ",
+
+		/* read */
+		"currentBarNumber "
+		"whichBar "
+		"stavesFound "
+		"barNumberVisibility ",
+
+		/* write */
+		""
+		);