smobify_self ();
length_callback_ = get_property ("length-callback");
+ if (!ly_is_procedure (length_callback_))
+ {
+ length_callback_ = duration_length_callback_proc;
+ }
+
start_callback_ = get_property ("start-callback");
}
{
}
-ADD_MUSIC (Music);
SCM
Music::get_property_alist (bool m) const
{
Music *mus = (Music *) SCM_CELL_WORD_1 (m);
scm_gc_mark (mus->immutable_property_alist_);
- scm_gc_mark (mus->mutable_property_alist_);
- return SCM_EOL;
+ return mus->mutable_property_alist_;
}
Moment
if (unsmob_moment (lst))
return *unsmob_moment (lst);
- if (ly_c_procedure_p (length_callback_))
+ if (ly_is_procedure (length_callback_))
{
SCM res = scm_call_1 (length_callback_, self_scm ());
return *unsmob_moment (res);
Moment
Music::start_mom () const
{
- SCM lst = get_property ("start-callback");
- if (ly_c_procedure_p (lst))
+ SCM lst = start_callback_;
+ if (ly_is_procedure (lst))
{
SCM res = scm_call_1 (lst, self_scm ());
return *unsmob_moment (res);
Music::to_relative_octave (Pitch last)
{
SCM callback = get_property ("to-relative-callback");
- if (ly_c_procedure_p (callback))
+ if (ly_is_procedure (callback))
{
Pitch *p = unsmob_pitch (scm_call_2 (callback, self_scm (), last.smobbed_copy ()));
return *p;
return (s == SCM_BOOL_F) ? SCM_EOL : scm_cdr (s);
}
+
+SCM
+Music::internal_get_object (SCM s) const
+{
+ return internal_get_property (s);
+}
+
+void
+Music::internal_set_object (SCM s, SCM v)
+{
+ return internal_set_property (s,v);
+}
+
void
Music::internal_set_property (SCM s, SCM v)
{
return ip ? ip : &dummy_input_global;
}
-
Music *
make_music_by_name (SCM sym)
{
SCM rv = scm_call_1 (make_music_proc, sym);
/* UGH. */
- scm_gc_protect_object (rv);
- return unsmob_music (rv);
+ Music *m = unsmob_music (rv);
+ m->protect ();
+ return m;
+}
+
+
+MAKE_SCHEME_CALLBACK (Music, duration_length_callback, 1);
+SCM
+Music::duration_length_callback (SCM m)
+{
+ Music *me = unsmob_music (m);
+ Duration *d = unsmob_duration (me->get_property ("duration"));
+
+ Moment mom;
+ if (d)
+ {
+ mom = d->get_length ();
+ }
+ return mom.smobbed_copy ();
}