(DECLARE_EVENT_SWALLOWER): ENTER_DESCRIPTION -> ADD_TRANSLATOR

[lilypond.git] / lily / staff-performer.cc

diff --git a/lily/staff-performer.cc b/lily/staff-performer.cc
index b0705a9df7e8ff2146139f08e6c40e73478298b6..ffc0cb7358788eb368e008b91d8a8e6ac5ae7ddb 100644 (file)
--- a/lily/staff-performer.cc
+++ b/lily/staff-performer.cc
@@ -3,15 +3,15 @@
 
   source file of the GNU LilyPond music typesetter
 
-  (c)  1997--2003 Jan Nieuwenhuizen <janneke@gnu.org>
+  (c) 1997--2004 Jan Nieuwenhuizen <janneke@gnu.org>
  */
 
-#include "translator-group.hh"
 #include "warn.hh"
 #include "audio-column.hh"
 #include "audio-item.hh"
 #include "audio-staff.hh"
 #include "performer-group-performer.hh"
+#include "context.hh"
 
 /** Perform a staff. Individual notes should have their instrument
  (staff-wide) set, so we override play_element ()
@@ -20,7 +20,7 @@
 class Staff_performer : public Performer_group_performer 
 {
 public:
-  TRANSLATOR_DECLARATIONS(Staff_performer);
+  TRANSLATOR_DECLARATIONS (Staff_performer);
   ~Staff_performer ();
 
   String new_instrument_string ();
@@ -41,7 +41,7 @@ private:
   Audio_tempo* tempo_;
 };
 
-ENTER_DESCRIPTION (Staff_performer, "", "",
+ADD_TRANSLATOR (Staff_performer, "", "",
                   "",
                   "", "", "");
 
@@ -64,7 +64,7 @@ Staff_performer::initialize ()
   audio_staff_ = new Audio_staff;
   announce_element (Audio_element_info (audio_staff_, 0));
 
-  name_ = new Audio_text (Audio_text::TRACK_NAME, id_string_);
+  name_ = new Audio_text (Audio_text::TRACK_NAME, context ()->id_string ());
   announce_element (Audio_element_info (name_, 0));
 
   tempo_ = new Audio_tempo (get_tempo ());
@@ -83,6 +83,12 @@ Staff_performer::create_audio_elements ()
       announce_element (Audio_element_info (instrument_name_, 0));
       instrument_ = new Audio_instrument (str);
       announce_element (Audio_element_info (instrument_, 0));
+
+      /*
+       Have to be here before notes arrive into the staff.
+       */
+      play_element (instrument_);
+      play_element (instrument_name_);
     }
   Performer_group_performer::create_audio_elements ();
 }
@@ -90,16 +96,9 @@ Staff_performer::create_audio_elements ()
 void
 Staff_performer::stop_translation_timestep ()
 {
-  /*
-    UGH. -> don't use eval.
-  */
+  SCM proc = ly_scheme_function ("percussion?");
   
-  static SCM proc;
-
-  if (!proc)
-    proc = scm_primitive_eval (ly_symbol2scm ("percussion?"));
-  
-  SCM drums = gh_call1 (proc, ly_symbol2scm (instrument_string_.to_str0 ()));
+  SCM drums = scm_call_1 (proc, ly_symbol2scm (instrument_string_.to_str0 ()));
   audio_staff_->channel_ = (drums == SCM_BOOL_T ? 9 : -1 );
   if (name_)
     {
@@ -111,16 +110,8 @@ Staff_performer::stop_translation_timestep ()
       play_element (tempo_);
       tempo_ = 0;
     }
-  if (instrument_name_)
-    {
-      play_element (instrument_name_);
-      instrument_name_ = 0;
-    }
-  if (instrument_)
-    {
-      play_element (instrument_);
-      instrument_ = 0;
-    }
+  instrument_name_ = 0;
+  instrument_ = 0;
   Performer_group_performer::stop_translation_timestep ();
 }
 
@@ -138,10 +129,7 @@ Staff_performer::new_instrument_string ()
   // mustn't ask Score for instrument: it will return piano!
   SCM minstr = get_property ("midiInstrument");
 
-  if (!gh_string_p (minstr))
-    minstr = get_property ("instrument");
-
-  if (!gh_string_p (minstr)
+  if (!scm_is_string (minstr)
       || ly_scm2string (minstr) == instrument_string_)
     return "";