X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Finstrument-name-engraver.cc;h=0abc7e432955bf8306b9f7f6704b02f9e4bdd766;hb=fcad9f183bb05f7206427bf5fc1b95fd8209d26e;hp=7bdfc428e872ff531fd2612cce18198d3e08ef42;hpb=175a579bf90f938533d3bc18648fad01ba287804;p=lilypond.git

diff --git a/lily/instrument-name-engraver.cc b/lily/instrument-name-engraver.cc
index 7bdfc428e8..0abc7e4329 100644
--- a/lily/instrument-name-engraver.cc
+++ b/lily/instrument-name-engraver.cc
@@ -1,7 +1,7 @@
 /*
   This file is part of LilyPond, the GNU music typesetter.
 
-  Copyright (C) 2000--2009 Han-Wen Nienhuys <hanwen@xs4all.nl>
+  Copyright (C) 2000--2012 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
@@ -17,13 +17,14 @@
   along with LilyPond.  If not, see <http://www.gnu.org/licenses/>.
 */
 
+#include "align-interface.hh"
+#include "axis-group-interface.hh"
 #include "engraver.hh"
+#include "page-layout-problem.hh"
 #include "pointer-group-interface.hh"
 #include "side-position-interface.hh"
-#include "axis-group-interface.hh"
-#include "align-interface.hh"
-#include "text-interface.hh"
 #include "system.hh"
+#include "text-interface.hh"
 
 #include "translator.icc"
 
@@ -39,15 +40,25 @@ protected:
   SCM short_text_;
 
   vector<Grob *> axis_groups_;
-  
+  vector<Grob *> backup_axis_groups_;
+
   virtual void finalize ();
   DECLARE_ACKNOWLEDGER (axis_group);
   void process_music ();
   void start_spanner ();
   void consider_start_spanner ();
   void stop_spanner ();
+
+  virtual void derived_mark () const;
 };
 
+void
+Instrument_name_engraver::derived_mark () const
+{
+  scm_gc_mark (long_text_);
+  scm_gc_mark (short_text_);
+}
+
 Instrument_name_engraver::Instrument_name_engraver ()
 {
   text_spanner_ = 0;
@@ -69,7 +80,7 @@ Instrument_name_engraver::consider_start_spanner ()
   SCM short_text = get_property ("shortInstrumentName");
 
   if (!(Text_interface::is_markup (long_text)
-	|| Text_interface::is_markup (short_text)))
+        || Text_interface::is_markup (short_text)))
     {
       long_text = get_property ("vocalName");
       short_text = get_property ("shortVocalName");
@@ -78,11 +89,11 @@ Instrument_name_engraver::consider_start_spanner ()
   if ((Text_interface::is_markup (long_text)
        || Text_interface::is_markup (short_text))
       && (!text_spanner_
-	  || short_text_ != short_text
-	  || long_text_ != long_text))
+          || short_text_ != short_text
+          || long_text_ != long_text))
     {
       if (text_spanner_)
-	stop_spanner ();
+        stop_spanner ();
 
       short_text_ = short_text;
       long_text_ = long_text;
@@ -124,7 +135,13 @@ Instrument_name_engraver::acknowledge_axis_group (Grob_info info)
       && !info.grob ()->internal_has_interface (ly_symbol2scm ("volta-interface"))
       && (!Align_interface::has_interface (info.grob ())))
     {
-      axis_groups_.push_back (info.grob ());
+      if (Page_layout_problem::is_spaceable (info.grob ()))
+        axis_groups_.push_back (info.grob ());
+      else
+        // By default, don't include non-spaceable staves in the
+        // support of an instrument name.  However, if the only staves
+        // are non-spaceable, we'll fall back to using them.
+        backup_axis_groups_.push_back (info.grob ());
     }
 }
 
@@ -138,38 +155,40 @@ Instrument_name_engraver::finalize ()
 void
 Instrument_name_engraver::stop_spanner ()
 {
+  if (axis_groups_.empty ())
+    axis_groups_ = backup_axis_groups_;
+
   for (vsize i = 0; i < axis_groups_.size (); i++)
     Pointer_group_interface::add_grob (text_spanner_,
-				       ly_symbol2scm ("elements"),
-				       axis_groups_[i]);
-  
+                                       ly_symbol2scm ("elements"),
+                                       axis_groups_[i]);
+
   text_spanner_->set_bound (RIGHT,
-			    unsmob_grob (get_property ("currentCommandColumn")));
+                            unsmob_grob (get_property ("currentCommandColumn")));
 
   Pointer_group_interface::set_ordered (text_spanner_,
-					ly_symbol2scm ("elements"),
-					false);
+                                        ly_symbol2scm ("elements"),
+                                        false);
 
   text_spanner_ = 0;
 }
 
-
 ADD_ACKNOWLEDGER (Instrument_name_engraver, axis_group);
 
 ADD_TRANSLATOR (Instrument_name_engraver,
-		/* doc */
-		"Create a system start text for instrument or vocal names.",
-		
-		/* create */
-		"InstrumentName ",
-		
-		/* read */
-		"currentCommandColumn "
-		"instrumentName "
-		"shortInstrumentName "
-		"shortVocalName "
-		"vocalName ",
-
-		/* write */
-		""
-		);
+                /* doc */
+                "Create a system start text for instrument or vocal names.",
+
+                /* create */
+                "InstrumentName ",
+
+                /* read */
+                "currentCommandColumn "
+                "instrumentName "
+                "shortInstrumentName "
+                "shortVocalName "
+                "vocalName ",
+
+                /* write */
+                ""
+               );