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[lilypond.git] / lily / instrument-name-engraver.cc

diff --git a/lily/instrument-name-engraver.cc b/lily/instrument-name-engraver.cc
index 76e0a88e33dca6ca44535e889f230ed91aa0fe43..26a6fdd04d80066c3d879b4880e8d0ff4772c0d7 100644 (file)
--- a/lily/instrument-name-engraver.cc
+++ b/lily/instrument-name-engraver.cc
@@ -1,13 +1,23 @@
 /*
-  instrument-name-engraver.cc -- implement Instrument_name_engraver
+  This file is part of LilyPond, the GNU music typesetter.
 
-  source file of the GNU LilyPond music typesetter
+  Copyright (C) 2000--2010 Han-Wen Nienhuys <hanwen@xs4all.nl>
 
-  (c) 2000--2006 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 "engraver.hh"
-#include "spanner.hh"
 #include "pointer-group-interface.hh"
 #include "side-position-interface.hh"
 #include "axis-group-interface.hh"
@@ -28,15 +38,25 @@ protected:
   SCM long_text_;
   SCM short_text_;
 
-  vector<Grob*> axis_groups_;
+  vector<Grob *> 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;
@@ -48,11 +68,11 @@ Instrument_name_engraver::Instrument_name_engraver ()
 void
 Instrument_name_engraver::process_music ()
 {
-  start_spanner ();
+  consider_start_spanner ();
 }
 
 void
-Instrument_name_engraver::start_spanner ()
+Instrument_name_engraver::consider_start_spanner ()
 {
   SCM long_text = get_property ("instrumentName");
   SCM short_text = get_property ("shortInstrumentName");
@@ -63,7 +83,7 @@ Instrument_name_engraver::start_spanner ()
       long_text = get_property ("vocalName");
       short_text = get_property ("shortVocalName");
     }
-  
+
   if ((Text_interface::is_markup (long_text)
        || Text_interface::is_markup (short_text))
       && (!text_spanner_
@@ -72,25 +92,45 @@ Instrument_name_engraver::start_spanner ()
     {
       if (text_spanner_)
        stop_spanner ();
-      
-      text_spanner_ = make_spanner ("InstrumentName", SCM_EOL);
-         
-      Grob *col = unsmob_grob (get_property ("currentCommandColumn"));
-      text_spanner_->set_bound (LEFT, col);
-      text_spanner_->set_property ("text", short_text);
-      text_spanner_->set_property ("long-text", long_text);
 
       short_text_ = short_text;
       long_text_ = long_text;
+
+      start_spanner ();
     }
 }
 
+void
+Instrument_name_engraver::start_spanner ()
+{
+  text_spanner_ = make_spanner ("InstrumentName", SCM_EOL);
+
+  Grob *col = unsmob_grob (get_property ("currentCommandColumn"));
+  text_spanner_->set_bound (LEFT, col);
+  text_spanner_->set_property ("text", short_text_);
+  text_spanner_->set_property ("long-text", long_text_);
+
+  /*
+    UGH, should handle this in Score_engraver.
+  */
+  Grob *system = unsmob_grob (get_property ("rootSystem"));
+  if (system)
+    Axis_group_interface::add_element (system, text_spanner_);
+  else
+    text_spanner_->programming_error ("cannot find root system");
+}
+
 void
 Instrument_name_engraver::acknowledge_axis_group (Grob_info info)
 {
-  if (text_spanner_ 
-      && dynamic_cast<Spanner *> (info.grob ())
+  if (dynamic_cast<Spanner *> (info.grob ())
       && Axis_group_interface::has_axis (info.grob (), Y_AXIS)
+
+      /* ugh. */
+
+      && !info.grob ()->internal_has_interface (ly_symbol2scm ("dynamic-interface"))
+      && !info.grob ()->internal_has_interface (ly_symbol2scm ("piano-pedal-interface"))
+      && !info.grob ()->internal_has_interface (ly_symbol2scm ("volta-interface"))
       && (!Align_interface::has_interface (info.grob ())))
     {
       axis_groups_.push_back (info.grob ());
@@ -101,56 +141,44 @@ void
 Instrument_name_engraver::finalize ()
 {
   if (text_spanner_)
-    {
-      stop_spanner ();
-    }
+    stop_spanner ();
 }
 
 void
 Instrument_name_engraver::stop_spanner ()
 {
   for (vsize i = 0; i < axis_groups_.size (); i++)
-    Pointer_group_interface::add_grob (text_spanner_, ly_symbol2scm ("elements"), axis_groups_[i]);
+    Pointer_group_interface::add_grob (text_spanner_,
+                                      ly_symbol2scm ("elements"),
+                                      axis_groups_[i]);
   
   text_spanner_->set_bound (RIGHT,
                            unsmob_grob (get_property ("currentCommandColumn")));
 
-  Pointer_group_interface::set_ordered (text_spanner_, ly_symbol2scm ("elements"), false);
-
-  System *system = get_root_system (text_spanner_);
-
-  /*
-    UGH, should handle this in Score_engraver.
-  */
-  if (system)
-    Axis_group_interface::add_element (system, text_spanner_);
-  else
-    text_spanner_->programming_error ("can't find root system");
+  Pointer_group_interface::set_ordered (text_spanner_,
+                                       ly_symbol2scm ("elements"),
+                                       false);
 
   text_spanner_ = 0;
 }
 
-#include "translator.icc"
 
 ADD_ACKNOWLEDGER (Instrument_name_engraver, axis_group);
 
 ADD_TRANSLATOR (Instrument_name_engraver,
-
                /* doc */
-               "Creates a system start text for instrument or vocal names.",
+               "Create a system start text for instrument or vocal names.",
                
                /* create */
                "InstrumentName ",
                
-               /* accept */
-               "",
-               
                /* read */
                "currentCommandColumn "
-               "shortInstrumentName "
                "instrumentName "
+               "shortInstrumentName "
                "shortVocalName "
-               "vocalName "
-               ,
+               "vocalName ",
 
-               /* write */ "");
+               /* write */
+               ""
+               );