patch::: 1.1.39.jcn1: jcn1

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

diff --git a/lily/staff-performer.cc b/lily/staff-performer.cc
index ac2cfa3aab92b99bd22df23683d1974a8b87afa6..44597fe411fe2ebd6ae4c6d8fc51dfd631d50899 100644 (file)
--- a/lily/staff-performer.cc
+++ b/lily/staff-performer.cc
@@ -3,7 +3,7 @@
 
   source file of the GNU LilyPond music typesetter
 
-  (c)  1997--1998 Jan Nieuwenhuizen <janneke@gnu.org>
+  (c)  1997--1999 Jan Nieuwenhuizen <janneke@gnu.org>
  */
 
 #include "staff-performer.hh"
@@ -13,7 +13,7 @@
 #include "audio-item.hh"
 #include "audio-staff.hh"
 
-IMPLEMENT_IS_TYPE_B1 (Staff_performer,Performer_group_performer);
+
 ADD_THIS_TRANSLATOR (Staff_performer);
 
 Staff_performer::Staff_performer ()
@@ -77,9 +77,9 @@ String
 Staff_performer::new_instrument_str () 
 { 
   // mustn't ask Score for instrument: it will return piano!
-  String str = get_property ("midi_instrument");
+  String str = get_property ("midi_instrument", 0);
   if (!str.length_i ())
-    str = get_property ("instrument");
+    str = get_property ("instrument", 0);
   if (str == instrument_str_)
     return "";
 
@@ -97,9 +97,9 @@ Staff_performer::new_instrument_str ()
 void 
 Staff_performer::play (Audio_element* p)
 {
-  if (p->is_type_b (Audio_item::static_name ())) 
+  if (Audio_item *ai = dynamic_cast<Audio_item *> (p)) 
     {
-      audio_staff_p_->add_audio_item ( (Audio_item*)p);
+      audio_staff_p_->add_audio_item (ai);
     }
   Performer::play (p);
 }