release: 1.1.54

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

diff --git a/lily/key-performer.cc b/lily/key-performer.cc
index d4d0527aa06e1d20f987da38e4ef8a0a2cf15177..14d73dbbb9fd3539030d00400b3ab695dab701d8 100644 (file)
--- a/lily/key-performer.cc
+++ b/lily/key-performer.cc
@@ -3,7 +3,7 @@
 
   source file of the GNU LilyPond music typesetter
 
-  (c) 1997 Jan Nieuwenhuizen <jan@digicash.com>
+  (c)  1997--1999 Jan Nieuwenhuizen <janneke@gnu.org>
 */
 
 #include "key-performer.hh"
@@ -12,46 +12,61 @@
 
 
 
-IMPLEMENT_IS_TYPE_B1(Key_performer,Performer);
-ADD_THIS_PERFORMER(Key_performer);
 
-Key_performer::Key_performer()
+ADD_THIS_TRANSLATOR (Key_performer);
+
+Key_performer::Key_performer ()
 {
   key_req_l_ = 0;
+  audio_p_ = 0;
 }
 
-Key_performer::~Key_performer()
+Key_performer::~Key_performer ()
 {
 }
 
 void 
-Key_performer::do_print() const
+Key_performer::do_print () const
 {
 #ifndef NPRINT
-  if ( key_req_l_)
-       key_req_l_->print();
+  if (key_req_l_)
+    key_req_l_->print ();
 #endif
 }
 
 void
-Key_performer::process_requests()
+Key_performer::do_process_requests ()
 {
-  if ( key_req_l_)
-       play (new Audio_key (key_req_l_) );
-  key_req_l_ = 0;
+  if (key_req_l_)
+    {
+      audio_p_ = new Audio_key (key_req_l_->key_);
+      Audio_element_info info (audio_p_, key_req_l_);
+      announce_element (info);
+      key_req_l_ = 0;
+    }
 }
 
-bool
-Key_performer::do_try_request (Request* req_l)
+void
+Key_performer::do_pre_move_processing ()
 {
-  if ( key_req_l_)
-       return false;
+  if (audio_p_)
+    {
+      play_element (audio_p_);
+      audio_p_ = 0;
+    }
+}
 
-  if ( req_l->command())
-       key_req_l_ = req_l->command()->keychange ();
+bool
+Key_performer::do_try_music (Music* req_l)
+{
+  if (Key_change_req *kc = dynamic_cast <Key_change_req *> (req_l))
+    {
+      if (key_req_l_)
+       warning ("FIXME. Key change merge");
 
-  if ( key_req_l_)
-       return true;
+      key_req_l_ = kc;
+      return true;
+    }
 
   return false;
 }