-
-LY_DEFINE (ly_music_length, "ly:music-length",
- 1, 0, 0, (SCM mus),
- "Get the length of music expression @var{mus}, and return as a @code{Moment} object.")
-{
- Music *sc = unsmob_music (mus);
- SCM_ASSERT_TYPE (sc, mus, SCM_ARG1, __FUNCTION__, "music");
- return sc->get_length ().smobbed_copy ();
-}
-
-LY_DEFINE (ly_music_property,
- "ly:music-property", 2, 0, 0, (SCM mus, SCM sym),
- "Get the property @var{sym} of music expression @var{mus}.\n"
- "If @var{sym} is undefined, return @code{' ()}.\n" )
-{
- Music * sc = unsmob_music (mus);
- SCM_ASSERT_TYPE (sc, mus, SCM_ARG1, __FUNCTION__, "music");
- SCM_ASSERT_TYPE (scm_is_symbol (sym), sym, SCM_ARG2, __FUNCTION__, "symbol");
-
- return sc->internal_get_property (sym);
-}
-
-LY_DEFINE (ly_music_set_property, "ly:music-set-property!",
- 3, 0, 0, (SCM mus, SCM sym, SCM val),
- "Set property @var{sym} in music expression @var{mus} to @var{val}.")
-{
- Music * sc = unsmob_music (mus);
- SCM_ASSERT_TYPE (sc, mus, SCM_ARG1, __FUNCTION__, "music");
- SCM_ASSERT_TYPE (scm_is_symbol (sym), sym, SCM_ARG2, __FUNCTION__, "symbol");
-
- bool ok = type_check_assignment (sym, val, ly_symbol2scm ("music-type?"));
- if (ok)
- {
- sc->internal_set_property (sym, val);
- }
-
- return SCM_UNSPECIFIED;
-}
-
-LY_DEFINE (ly_music_name, "ly:music-name",
- 1, 0, 0, (SCM mus),
- "Return the name of @var{music}.")
-{
- Music *m = unsmob_music (mus);
- SCM_ASSERT_TYPE (m, mus, SCM_ARG1, __FUNCTION__ ,"music");
-
- char const *nm = classname (m);
- return scm_makfrom0str (nm);
-}
-
-/* todo: property args */
-LY_DEFINE (ly_extended_make_music, "ly:make-bare-music",
- 2, 0, 0, (SCM type, SCM props),
- "Make a C++ music object of type @var{type}, initialize with\n"
- "@var{props}. \n\n"
- ""
- "This function is for internal use, and is only called by "
- "@code{make-music}, which is the preferred interface "
- "for creating music objects. "
- )
-{
- SCM_ASSERT_TYPE (scm_is_string (type), type, SCM_ARG1, __FUNCTION__, "string");
- SCM s = make_music (ly_scm2string (type))->self_scm ();
- unsmob_music (s)->immutable_property_alist_ = props;
- scm_gc_unprotect_object (s);
- return s;
-}
-
-/* todo: property args */
-LY_DEFINE (ly_music_mutable_properties, "ly:music-mutable-properties",
- 1, 0, 0, (SCM mus),
- "Return an alist containing the mutable properties of @var{mus}.\n"
- "The immutable properties are not available, since "
- "they are constant and initialized by the "
- "@code{make-music} function.\n")
-{
- Music *m = unsmob_music (mus);
- SCM_ASSERT_TYPE (m, mus, SCM_ARG1, __FUNCTION__, "music");
- return m->get_property_alist (true);
-}
-
-LY_DEFINE (ly_music_list_p,"ly:music-list?",
- 1, 0, 0, (SCM lst),
- "Type predicate: return true if @var{lst} is a list "
- "of music objects.")
-{
- if (scm_list_p (lst) == SCM_BOOL_T)
- while (scm_is_pair (lst))
- {
- if (!unsmob_music (ly_car (lst)))
- return SCM_BOOL_F;
- lst = ly_cdr (lst);
- }
-
- return SCM_BOOL_T;
-}
-
-LY_DEFINE (ly_deep_mus_copy, "ly:music-deep-copy",
- 1, 0, 0, (SCM m),
- "Copy @var{m} and all sub expressions of @var{m}")
-{
- SCM copy = m;
- if (unsmob_music (m))
- {
- copy = unsmob_music (m)->clone ()->self_scm ();
- scm_gc_unprotect_object (copy);
- }
- else if (scm_is_pair (m))
- copy = scm_cons (ly_deep_mus_copy (ly_car (m)),
- ly_deep_mus_copy (ly_cdr (m)));
- return copy;
-}
-
-LY_DEFINE (ly_music_transpose, "ly:music-transpose",
- 2, 0, 0, (SCM m, SCM p),
- "Transpose @var{m} such that central C is mapped to @var{p}. "
- "Return @var{m}.")
-{
- Music * sc = unsmob_music (m);
- Pitch * sp = unsmob_pitch (p);
- SCM_ASSERT_TYPE (sc, m, SCM_ARG1, __FUNCTION__, "music");
- SCM_ASSERT_TYPE (sp, p, SCM_ARG2, __FUNCTION__, "pitch");
-
- sc->transpose (*sp);
- // SCM_UNDEFINED ?
- return sc->self_scm ();
-}
-
-/*
- TODO: should take moment factor?
- */
-LY_DEFINE (ly_music_compress, "ly:music-compress",
- 2, 0, 0, (SCM m, SCM factor),
- "Compress music object @var{m} by moment @var{factor}."
- )
-{
- Music * sc = unsmob_music (m);
-
- SCM_ASSERT_TYPE (sc, m, SCM_ARG1, __FUNCTION__, "music");
- SCM_ASSERT_TYPE (unsmob_moment (factor), factor, SCM_ARG2, __FUNCTION__, "moment");
-
- sc->compress (*unsmob_moment (factor));
- return sc->self_scm ();
-}
-
-LY_DEFINE (ly_music_scorify, "ly:music-scorify",
- 2, 0, 0,
- (SCM music, SCM parser),
- "Return MUSIC encapsulated in SCORE.")
-{
-#if 0
- SCM_ASSERT_TYPE (ly_c_music_p (music), music, SCM_ARG1, __FUNCTION__, "music");
-#endif
- Score *score = new Score;
-
- score->set_music (music, parser);
-
- scm_gc_unprotect_object (score->self_scm ());
- return score->self_scm ();
-}