release: 1.3.109

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

diff --git a/lily/key-performer.cc b/lily/key-performer.cc
index b55210a4487d60e37f598f9e37f47e2acf81b4a2..27144dba57beaf01024fde67873b00342d8d84d8 100644 (file)
--- a/lily/key-performer.cc
+++ b/lily/key-performer.cc
@@ -6,10 +6,27 @@
   (c)  1997--2000 Jan Nieuwenhuizen <janneke@gnu.org>
 */
 
-#include "key-performer.hh"
 #include "command-request.hh"
 #include "audio-item.hh"
+#include "performer.hh"
 
+class Key_performer : public Performer
+{
+public:
+  VIRTUAL_COPY_CONS(Translator);
+  
+  Key_performer();
+  ~Key_performer();
+
+protected:
+  virtual bool try_music (Music* req_l);
+  virtual void create_grobs ();
+  virtual void stop_translation_timestep ();
+
+private:
+  Key_change_req* key_req_l_;
+  Audio_key* audio_p_;
+};
 
 ADD_THIS_TRANSLATOR (Key_performer);
 
@@ -24,9 +41,10 @@ Key_performer::~Key_performer ()
 }
 
 void
-Key_performer::do_process_music ()
+Key_performer::create_grobs ()
 {
-  if (key_req_l_ && key_req_l_->pitch_alist_ != SCM_UNDEFINED)
+  if (key_req_l_ &&
+      gh_list_p (key_req_l_->get_mus_property ("pitch-alist")))
     {
       audio_p_ = new Audio_key (); // *key_req_l_->key_);
       Audio_element_info info (audio_p_, key_req_l_);
@@ -36,7 +54,7 @@ Key_performer::do_process_music ()
 }
 
 void
-Key_performer::do_pre_move_processing ()
+Key_performer::stop_translation_timestep ()
 {
   if (audio_p_)
     {
@@ -46,7 +64,7 @@ Key_performer::do_pre_move_processing ()
 }
 
 bool
-Key_performer::do_try_music (Music* req_l)
+Key_performer::try_music (Music* req_l)
 {
   if (Key_change_req *kc = dynamic_cast <Key_change_req *> (req_l))
     {