/*
This file is part of LilyPond, the GNU music typesetter.
- Copyright (C) 1997--2009 Han-Wen Nienhuys <hanwen@xs4all.nl>
+ Copyright (C) 1997--2011 Han-Wen Nienhuys <hanwen@xs4all.nl>
LilyPond is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
/*
- CAUSE is the object (typically a Music object) that
- was the reason for making E.
-*/
+ CAUSE is the object (typically a grob or stream-event object) that
+ was the reason for ending E. */
void
Engraver::announce_end_grob (Grob *e, SCM cause)
{
}
Spanner *
-Engraver::internal_make_spanner (SCM x, SCM cause, char const *name, char const *file, int line, char const *fun)
+Engraver::internal_make_spanner (SCM x, SCM cause, char const *name,
+ char const *file, int line, char const *fun)
{
Spanner *sp = dynamic_cast<Spanner *> (internal_make_grob (x, cause, name, file, line, fun));
assert (sp);
return sp;
}
+Engraver*
+unsmob_engraver (SCM eng)
+{
+ return dynamic_cast<Engraver*> (unsmob_translator (eng));
+}
+
+bool
+ly_is_grob_cause (SCM obj)
+{
+ return unsmob_grob (obj) || unsmob_stream_event (obj) || (obj == SCM_EOL);
+}
+
#include "translator.icc"
ADD_TRANSLATOR (Engraver,
""
);
+