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"
-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;
+ 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;
+ return false;
}