(c) 1997--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
*/
-#include "item.hh"
#include "bar-line.hh"
-#include "staff-symbol-referencer.hh"
+#include "clef.hh"
#include "context.hh"
#include "engraver.hh"
-#include "protected-scm.hh"
-#include "clef.hh"
+#include "item.hh"
#include "pitch.hh"
+#include "protected-scm.hh"
+#include "staff-symbol-referencer.hh"
+#include "stream-event.hh"
#include "translator.icc"
class Key_engraver : public Engraver
{
void create_key (bool);
- void read_event (Music const *r);
+ void read_event (Stream_event const *r);
- Music *key_event_;
+ Stream_event *key_event_;
Item *item_;
Item *cancellation_;
public:
protected:
virtual void initialize ();
virtual void finalize ();
- virtual bool try_music (Music *event);
void stop_translation_timestep ();
void process_music ();
+ DECLARE_TRANSLATOR_LISTENER (key_change);
DECLARE_ACKNOWLEDGER (clef);
DECLARE_ACKNOWLEDGER (bar_line);
};
}
}
-bool
-Key_engraver::try_music (Music *event)
+IMPLEMENT_TRANSLATOR_LISTENER (Key_engraver, key_change);
+void
+Key_engraver::listen_key_change (Stream_event *ev)
{
- if (event->is_mus_type ("key-change-event"))
- {
- /* do this only once, just to be on the safe side. */
- if (!key_event_)
- {
- key_event_ = event;
- read_event (key_event_);
- }
- return true;
- }
- return false;
+ /* do this only once, just to be on the safe side. */
+ if (ASSIGN_EVENT_ONCE (key_event_, ev))
+ read_event (key_event_);
}
void
}
void
-Key_engraver::read_event (Music const *r)
+Key_engraver::read_event (Stream_event const *r)
{
SCM p = r->get_property ("pitch-alist");
if (!scm_is_pair (p))
ADD_TRANSLATOR (Key_engraver,
/* doc */ "",
/* create */ "KeySignature",
- /* accept */ "key-change-event",
- /* read */ "keySignature printKeyCancellation lastKeySignature "
- "explicitKeySignatureVisibility createKeyOnClefChange "
- "keyAlterationOrder keySignature",
- /* write */ "lastKeySignature tonic keySignature");
+
+ /* read */
+ "createKeyOnClefChange "
+ "explicitKeySignatureVisibility "
+ "keyAlterationOrder "
+ "keySignature "
+ "keySignature "
+ "lastKeySignature "
+ "printKeyCancellation "
+ ,
+
+ /* write */
+ "keySignature "
+ "lastKeySignature "
+ "tonic ")