source file of the GNU LilyPond music typesetter
- (c) 1997--2002 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1997--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
#include "main.hh"
#include "warn.hh"
#include "pitch.hh"
#include "ly-smobs.icc"
+#include "main.hh"
-SCM
-ly_deep_mus_copy (SCM m)
-{
- if (unsmob_music (m))
- {
- SCM ss = unsmob_music (m)->clone ()->self_scm ();
- scm_gc_unprotect_object (ss);
- return ss;
- }
- else if (gh_pair_p (m))
- {
- return gh_cons (ly_deep_mus_copy (ly_car (m)), ly_deep_mus_copy (ly_cdr (m)));
- }
- else
- return m;
-}
bool
-Music::internal_is_music_type (SCM k)const
+Music::internal_is_music_type (SCM k) const
{
- SCM ifs = get_mus_property ("types");
+ SCM ifs = get_property ("types");
- return scm_memq (k, ifs) != SCM_BOOL_F;
+ return scm_c_memq (k, ifs) != SCM_BOOL_F;
}
-void
-Music::transpose (Pitch)
+String
+Music::name () const
{
+ SCM nm = get_property ("name");
+ if (gh_symbol_p (nm))
+ {
+ return ly_symbol2string (nm);
+ }
+ else
+ {
+ return classname (this);
+ }
}
-void
-Music::compress (Moment)
+Music::Music ()
{
+ self_scm_ = SCM_EOL;
+ immutable_property_alist_ = SCM_EOL;
+ mutable_property_alist_ = SCM_EOL;
+ smobify_self ();
}
-
Music::Music (Music const &m)
{
immutable_property_alist_ = m.immutable_property_alist_;
mutable_property_alist_ = SCM_EOL;
self_scm_ = SCM_EOL;
- /*
- First we smobify_self, then we copy over the stuff. If we don't,
- stack vars that hold the copy might be optimized away, meaning
- that they won't be protected from GC.
- */
+ /* First we smobify_self, then we copy over the stuff. If we don't,
+ stack vars that hold the copy might be optimized away, meaning
+ that they won't be protected from GC. */
smobify_self ();
mutable_property_alist_ = ly_deep_mus_copy (m.mutable_property_alist_);
set_spot (*m.origin ());
}
-Music::Music ()
+Music::~Music ()
{
- self_scm_ = SCM_EOL;
- immutable_property_alist_ = SCM_EOL;
- mutable_property_alist_ = SCM_EOL;
- smobify_self ();
}
+ADD_MUSIC (Music);
+
SCM
Music::get_property_alist (bool m) const
{
SCM
Music::mark_smob (SCM m)
{
- Music * mus = (Music *)SCM_CELL_WORD_1 (m);
+ 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;
}
Moment
-Music::length_mom () const
+Music::get_length () const
{
- SCM l = get_mus_property ("length");
- if (unsmob_moment (l))
- return *unsmob_moment (l);
- else if (gh_procedure_p (l))
+ SCM lst = get_property ("length");
+ if (unsmob_moment (lst))
+ return *unsmob_moment (lst);
+ else if (gh_procedure_p (lst))
{
- SCM res = gh_call1 (l, self_scm ());
+ SCM res = gh_call1 (lst, self_scm ());
return *unsmob_moment (res);
}
-
+
return 0;
}
Moment
Music::start_mom () const
{
- SCM l = get_mus_property ("start-moment-function");
- if (gh_procedure_p (l))
+ SCM lst = get_property ("start-moment-function");
+ if (gh_procedure_p (lst))
{
- SCM res = gh_call1 (l, self_scm ());
+ SCM res = gh_call1 (lst, self_scm ());
return *unsmob_moment (res);
}
- Moment m ;
+ Moment m;
return m;
}
void
print_alist (SCM a, SCM port)
{
- /*
- SCM_EOL -> catch malformed lists.
- */
+ /* SCM_EOL -> catch malformed lists. */
for (SCM s = a; gh_pair_p (s); s = ly_cdr (s))
{
scm_display (ly_caar (s), port);
- scm_puts (" = ", port);
+ scm_puts (" = ", port);
scm_write (ly_cdar (s), port);
scm_puts ("\n", port);
}
{
scm_puts ("#<Music ", p);
Music* m = unsmob_music (s);
- scm_puts (classname (m),p);
- print_alist (m->mutable_property_alist_, p);
- print_alist (m->immutable_property_alist_, p);
-
+ SCM nm = m->get_property ("name");
+ if (gh_symbol_p (nm) || gh_string_p (nm))
+ scm_display (nm, p);
+ else
+ scm_puts (classname (m),p);
+
+ /* Printing properties takes a lot of time, especially during backtraces.
+ For inspecting, it is better to explicitly use an inspection
+ function. */
+
scm_puts (">",p);
return 1;
}
Pitch
-Music::to_relative_octave (Pitch m)
+Music::to_relative_octave (Pitch p)
{
- return m;
+ SCM elt = get_property ("element");
+
+ if (Music *m = unsmob_music (elt))
+ p = m->to_relative_octave (p);
+
+ p = music_list_to_relative (get_property ("elements"), p, false);
+ return p;
}
+void
+Music::compress (Moment factor)
+{
+ SCM elt = get_property ("element");
+
+ if (Music *m = unsmob_music (elt))
+ m->compress (factor);
+
+ compress_music_list (get_property ("elements"), factor);
+}
-IMPLEMENT_TYPE_P (Music, "music?");
+void
+Music::transpose (Pitch delta)
+{
+ SCM elt = get_property ("element");
+
+ if (Music* m = unsmob_music (elt))
+ m->transpose (delta);
+
+ transpose_music_list (get_property ("elements"), delta);
+}
+IMPLEMENT_TYPE_P (Music, "ly:music?");
IMPLEMENT_SMOBS (Music);
IMPLEMENT_DEFAULT_EQUAL_P (Music);
-/****************************/
-
SCM
-Music::internal_get_mus_property (SCM sym) const
+Music::internal_get_property (SCM sym) const
{
SCM s = scm_sloppy_assq (sym, mutable_property_alist_);
if (s != SCM_BOOL_F)
return ly_cdr (s);
s = scm_sloppy_assq (sym, immutable_property_alist_);
- return (s == SCM_BOOL_F) ? SCM_EOL : ly_cdr (s);
+ return (s == SCM_BOOL_F) ? SCM_EOL : ly_cdr (s);
}
void
-Music::internal_set_mus_property (SCM s, SCM v)
+Music::internal_set_property (SCM s, SCM v)
{
if (internal_type_checking_global_b)
if (!type_check_assignment (s, v, ly_symbol2scm ("music-type?")))
mutable_property_alist_ = scm_assq_set_x (mutable_property_alist_, s, v);
}
-
-
-#include "main.hh"
-
void
Music::set_spot (Input ip)
{
- set_mus_property ("origin", make_input (ip));
+ set_property ("origin", make_input (ip));
}
Input*
Music::origin () const
{
- Input *ip = unsmob_input (get_mus_property ("origin"));
- return ip ? ip : & dummy_input_global;
+ Input *ip = unsmob_input (get_property ("origin"));
+ return ip ? ip : & dummy_input_global;
}
-
-Music::~Music ()
+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_get_mus_property,
- "ly-get-mus-property", 2, 0, 0, (SCM mus, SCM sym),
- "Get the property @var{sym} of music expression @var{mus}.")
+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(gh_symbol_p (sym), sym, SCM_ARG2, __FUNCTION__, "symbol");
+ SCM_ASSERT_TYPE (sc, mus, SCM_ARG1, __FUNCTION__, "music");
+ SCM_ASSERT_TYPE (gh_symbol_p (sym), sym, SCM_ARG2, __FUNCTION__, "symbol");
- return sc->internal_get_mus_property (sym);
+ return sc->internal_get_property (sym);
}
-LY_DEFINE(ly_set_mus_property,
- "ly-set-mus-property!", 3, 0, 0,
- (SCM mus, SCM sym, SCM val),
+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(gh_symbol_p (sym), sym, SCM_ARG2, __FUNCTION__, "symbol");
+ SCM_ASSERT_TYPE (sc, mus, SCM_ARG1, __FUNCTION__, "music");
+ SCM_ASSERT_TYPE (gh_symbol_p (sym), sym, SCM_ARG2, __FUNCTION__, "symbol");
bool ok = type_check_assignment (sym, val, ly_symbol2scm ("music-type?"));
if (ok)
{
- sc->internal_set_mus_property (sym, val);
+ 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}.")
+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");
-
- const char * nm = classname (m);
+ Music *m = unsmob_music (mus);
+ SCM_ASSERT_TYPE (m, mus, SCM_ARG1, __FUNCTION__ ,"music");
+
+ char const *nm = classname (m);
return scm_makfrom0str (nm);
}
-
-
-// to do property args
-LY_DEFINE(ly_extended_make_music,
- "ly-make-bare-music", 2, 0, 0, (SCM type, SCM props),
- "
-Make a music object/expression of type @var{type}, init with
-@var{props}. Warning: this interface will likely change in the near
-future.
-
-Music is the data type that music expressions are stored in. The data
-type does not yet offer many manipulations.
-
-WARNING: deprecated; use make-music-by-name.
-")
+/* 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(gh_string_p (type), type, SCM_ARG1, __FUNCTION__, "string");
-
+ SCM_ASSERT_TYPE (gh_string_p (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;
}
-// to do property args
-LY_DEFINE(ly_get_mutable_properties,
- "ly-get-mutable-properties", 1, 0, 0, (SCM mus),
- "
-Return an alist signifying the mutable properties of @var{mus}.
-The immutable properties are not available; they should be initialized
-by the functions make-music-by-name function.
- ")
+/* todo: property args */
+LY_DEFINE (ly_mutable_music_properties, "ly:mutable-music-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");
-
+ SCM_ASSERT_TYPE (m, mus, SCM_ARG1, __FUNCTION__, "music");
return m->get_property_alist (true);
}
-LY_DEFINE(ly_music_list_p,"music-list?", 1, 0, 0,
- (SCM l),"Type predicate: return true if @var{l} is a list of music objects.")
+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 (l) != SCM_BOOL_T)
- return SCM_BOOL_F;
+ if (scm_list_p (lst) == SCM_BOOL_T)
+ while (gh_pair_p (lst))
+ {
+ if (!unsmob_music (gh_car (lst)))
+ return SCM_BOOL_F;
+ lst = gh_cdr (lst);
+ }
- while (gh_pair_p (l))
- {
- if (!unsmob_music (gh_car (l)))
- return SCM_BOOL_F;
- l =gh_cdr (l);
- }
return SCM_BOOL_T;
}
-ADD_MUSIC(Music);
+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 (gh_pair_p (m))
+ copy = gh_cons (ly_deep_mus_copy (ly_car (m)),
+ ly_deep_mus_copy (ly_cdr (m)));
+ return copy;
+}
-SCM make_music_proc;
+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 ();
+}
Music*
make_music_by_name (SCM sym)
{
- if (!make_music_proc)
- make_music_proc = scm_primitive_eval (ly_symbol2scm ("make-music-by-name"));
+ SCM make_music_proc = ly_scheme_function ("make-music");
SCM rv = scm_call_1 (make_music_proc, sym);
- /*
- UGH.
- */
+ /* UGH. */
scm_gc_protect_object (rv);
return unsmob_music (rv);
}
+