source file of the GNU LilyPond music typesetter
- (c) 1997--2002 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1997--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
*/
-#include "input-smob.hh"
#include "music.hh"
-#include "music-list.hh"
-#include "debug.hh"
-#include "pitch.hh"
+#include "music-sequence.hh"
+#include "duration.hh"
+#include "input-smob.hh"
#include "ly-smobs.icc"
+#include "main.hh"
+#include "pitch.hh"
+#include "score.hh"
+#include "warn.hh"
-SCM
-ly_deep_mus_copy (SCM m)
+/*
+ Music is anything that has duration and supports both time compression
+ and transposition.
+
+ In Lily, everything that can be thought to have a length and a pitch
+ (which has a duration which can be transposed) is considered "music",
+*/
+bool
+Music::internal_is_music_type (SCM k) const
{
- 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;
+ SCM ifs = get_property ("types");
+
+ return scm_c_memq (k, ifs) != SCM_BOOL_F;
}
+String
+Music::name () const
+{
+ SCM nm = get_property ("name");
+ if (scm_is_symbol (nm))
+ return ly_symbol2string (nm);
+ else
+ return "Music";
+}
-Music::Music ()
+Music::Music (SCM init)
{
- immutable_property_alist_ = SCM_EOL;
+ self_scm_ = SCM_EOL;
+ immutable_property_alist_ = init;
mutable_property_alist_ = SCM_EOL;
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");
}
Music::Music (Music const &m)
{
immutable_property_alist_ = m.immutable_property_alist_;
- SCM c =ly_deep_mus_copy (m.mutable_property_alist_);
- mutable_property_alist_ = c;
+ 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. */
smobify_self ();
-
+ mutable_property_alist_ = ly_music_deep_copy (m.mutable_property_alist_);
+ length_callback_ = m.length_callback_;
+ start_callback_ = m.start_callback_;
set_spot (*m.origin ());
}
-
-Music::Music (SCM l)
+Music::~Music ()
{
- immutable_property_alist_ = l;
- mutable_property_alist_ = SCM_EOL;
- smobify_self ();
}
-
SCM
-Music::mark_smob (SCM m)
+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 (m) ? mutable_property_alist_ : immutable_property_alist_;
}
-void
-Music::compress (Moment)
+SCM
+Music::mark_smob (SCM m)
{
+ Music *mus = (Music *) SCM_CELL_WORD_1 (m);
+ scm_gc_mark (mus->immutable_property_alist_);
+ return mus->mutable_property_alist_;
}
-
-
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);
+
+ if (ly_is_procedure (length_callback_))
{
- SCM res = gh_call1 (l, self_scm ());
+ SCM res = scm_call_1 (length_callback_, self_scm ());
return *unsmob_moment (res);
}
-
- return 0;
+
+ return Moment (0);
}
Moment
Music::start_mom () const
{
- Moment m ;
+ SCM lst = start_callback_;
+ if (ly_is_procedure (lst))
+ {
+ SCM res = scm_call_1 (lst, self_scm ());
+ return *unsmob_moment (res);
+ }
+
+ Moment m;
return m;
}
void
print_alist (SCM a, SCM port)
{
- for (SCM s = a; gh_pair_p (s); s = ly_cdr (s))
+ /* SCM_EOL -> catch malformed lists. */
+ for (SCM s = a; scm_is_pair (s); s = scm_cdr (s))
{
- scm_display (ly_caar (s), port);
- scm_puts (" = ", port);
- scm_write (ly_cdar (s), port);
+ scm_display (scm_caar (s), port);
+ scm_puts (" = ", port);
+ scm_write (scm_cdar (s), port);
scm_puts ("\n", port);
}
}
Music::print_smob (SCM s, SCM p, scm_print_state*)
{
scm_puts ("#<Music ", p);
- Music* m = unsmob_music (s);
- scm_puts (classname (m),p);
+ Music *m = unsmob_music (s);
+
+ SCM nm = m->get_property ("name");
+ if (scm_is_symbol (nm) || scm_is_string (nm))
+ scm_display (nm, p);
+ else
+ scm_puts ("Music", p);
+
+ /* Printing properties takes a lot of time, especially during backtraces.
+ For inspecting, it is better to explicitly use an inspection
+ function. */
- print_alist (m->mutable_property_alist_, p);
- print_alist (m->immutable_property_alist_, p);
-
- scm_puts (">",p);
+ scm_puts (">", p);
return 1;
}
Pitch
-Music::to_relative_octave (Pitch m)
+Music::generic_to_relative_octave (Pitch last)
{
- return m;
+ SCM elt = get_property ("element");
+ Pitch *old_pit = unsmob_pitch (get_property ("pitch"));
+ if (old_pit)
+ {
+ Pitch new_pit = *old_pit;
+ new_pit = new_pit.to_relative_octave (last);
+
+ SCM check = get_property ("absolute-octave");
+ if (scm_is_number (check)
+ && new_pit.get_octave () != scm_to_int (check))
+ {
+ Pitch expected_pit (scm_to_int (check),
+ new_pit.get_notename (),
+ new_pit.get_alteration ());
+ origin ()->warning (_f ("octave check failed; expected %s, found: %s",
+ expected_pit.to_string (),
+ new_pit.to_string ()));
+ new_pit = expected_pit;
+ }
+
+ set_property ("pitch", new_pit.smobbed_copy ());
+
+ last = new_pit;
+ }
+
+ if (Music *m = unsmob_music (elt))
+ last = m->to_relative_octave (last);
+
+ last = music_list_to_relative (get_property ("elements"), last, false);
+ return last;
}
+Pitch
+Music::to_relative_octave (Pitch last)
+{
+ SCM callback = get_property ("to-relative-callback");
+ if (ly_is_procedure (callback))
+ {
+ Pitch *p = unsmob_pitch (scm_call_2 (callback, self_scm (), last.smobbed_copy ()));
+ return *p;
+ }
+
+ return generic_to_relative_octave (last);
+}
+
+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);
+ Duration *d = unsmob_duration (get_property ("duration"));
+ if (d)
+ set_property ("duration", d->compressed (factor.main_part_).smobbed_copy ());
+}
void
Music::transpose (Pitch delta)
{
- Pitch *p = unsmob_pitch (get_mus_property ("pitch"));
- if (!p)
- return ;
-
- Pitch np = *p;
- np.transpose (delta);
-
- if (abs (np.alteration_i_) > 2)
+ if (to_boolean (get_property ("untransposable")))
+ return;
+
+ for (SCM s = this->get_property_alist (true); scm_is_pair (s); s = scm_cdr (s))
{
- warning (_f ("Transposition by %s makes accidental larger than two",
- delta.str ()));
+ SCM entry = scm_car (s);
+ SCM val = scm_cdr (entry);
+
+ if (Pitch *p = unsmob_pitch (val))
+ {
+ Pitch transposed = p->transposed (delta);
+ scm_set_cdr_x (entry, transposed.smobbed_copy ());
+
+ if (abs (transposed.get_alteration ()) > DOUBLE_SHARP)
+ {
+ warning (_f ("transposition by %s makes alteration larger than double",
+ delta.to_string ()));
+ }
+ }
}
- set_mus_property ("pitch", np.smobbed_copy ());
-}
+ SCM elt = get_property ("element");
-IMPLEMENT_TYPE_P (Music, "music?");
+ if (Music *m = unsmob_music (elt))
+ m->transpose (delta);
+ transpose_music_list (get_property ("elements"), delta);
+
+ /*
+ UGH - how do this more generically?
+ */
+ SCM pa = get_property ("pitch-alist");
+ if (scm_is_pair (pa))
+ set_property ("pitch-alist", ly_transpose_key_alist (pa, delta.smobbed_copy ()));
+}
+
+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);
+ return scm_cdr (s);
s = scm_sloppy_assq (sym, immutable_property_alist_);
- return (s == SCM_BOOL_F) ? SCM_EOL : ly_cdr (s);
-}
-
-#if 0
-/*
- Remove the value associated with KEY, and return it. The result is
- that a next call will yield SCM_EOL (and not the underlying
- `basic' property.
-*/
-SCM
-Music::remove_mus_property (const char* key)
-{
- SCM val = get_mus_property (key);
- if (val != SCM_EOL)
- set_mus_property (key, SCM_EOL);
- return val;
+ return (s == SCM_BOOL_F) ? SCM_EOL : scm_cdr (s);
}
SCM
-Music::get_mus_property (const char *nm) const
+Music::internal_get_object (SCM s) const
{
- SCM sym = ly_symbol2scm (nm);
- return get_mus_property (sym);
+ return internal_get_property (s);
}
void
-Music::set_mus_property (const char* k, SCM v)
+Music::internal_set_object (SCM s, SCM v)
{
- SCM s = ly_symbol2scm (k);
- set_mus_property (s, v);
+ return internal_set_property (s, v);
}
void
-Music::set_immutable_mus_property (SCM s, SCM v)
+Music::internal_set_property (SCM s, SCM v)
{
- immutable_property_alist_ = gh_cons (gh_cons (s,v), mutable_property_alist_);
- mutable_property_alist_ = scm_assq_remove_x (mutable_property_alist_, s);
-}
-#endif
+ if (do_internal_type_checking_global)
+ if (!type_check_assignment (s, v, ly_symbol2scm ("music-type?")))
+ abort ();
-void
-Music::internal_set_mus_property (SCM s, SCM v)
-{
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*
+Input *
Music::origin () const
{
- Input *ip = unsmob_input (get_mus_property ("origin"));
- return ip ? ip : & dummy_input_global;
-}
-
-
-
-
-
-Music::~Music ()
-{
-
-}
-
-SCM
-ly_get_mus_property (SCM mus, SCM sym)
-{
- Music * sc = unsmob_music (mus);
-
- if (sc)
- {
- return sc->internal_get_mus_property (sym);
- }
- else
- {
- warning (_ ("ly_get_mus_property (): Not a Music"));
- scm_write (mus, scm_current_error_port ());
- }
- return SCM_EOL;
-}
-
-
-SCM
-ly_set_mus_property (SCM mus, SCM sym, SCM val)
-{
- Music * sc = unsmob_music (mus);
-
- if (!gh_symbol_p (sym))
- {
- warning (_ ("ly_set_mus_property (): Not a symbol"));
- scm_write (mus, scm_current_error_port ());
-
- return SCM_UNSPECIFIED;
- }
-
- if (sc)
- {
- sc->internal_set_mus_property (sym, val);
- }
- else
- {
- warning (_ ("ly_set_mus_property (): not of type Music"));
- scm_write (mus, scm_current_error_port ());
- }
-
- return SCM_UNSPECIFIED;
+ Input *ip = unsmob_input (get_property ("origin"));
+ return ip ? ip : &dummy_input_global;
}
-
-// to do property args
-SCM
-ly_make_music (SCM type)
+Music *
+make_music_by_name (SCM sym)
{
- if (!gh_string_p (type))
- {
- warning (_ ("ly_make_music (): Not a string"));
- scm_write (type, scm_current_error_port ());
+ SCM make_music_proc = ly_lily_module_constant ("make-music");
+ SCM rv = scm_call_1 (make_music_proc, sym);
- return SCM_UNSPECIFIED;
- }
- else
- {
- SCM s = get_music (ly_scm2string (type))->self_scm ();
- scm_gc_unprotect_object (s);
- return s;
- }
+ /* UGH. */
+ Music *m = unsmob_music (rv);
+ m->protect ();
+ return m;
}
+MAKE_SCHEME_CALLBACK (Music, duration_length_callback, 1);
SCM
-ly_music_name (SCM mus)
+Music::duration_length_callback (SCM m)
{
- Music * m = unsmob_music (mus);
- const char *nm ="";
- if (!m)
- {
- warning (_ ("ly_music_name (): Not a music expression"));
- scm_write (mus, scm_current_error_port ());
- }
- else
- nm = classname (m);
- return ly_str02scm (nm);
-}
+ Music *me = unsmob_music (m);
+ Duration *d = unsmob_duration (me->get_property ("duration"));
-static void
-init_functions ()
-{
- scm_c_define_gsubr ("ly-get-mus-property", 2, 0, 0, (Scheme_function_unknown)ly_get_mus_property);
- scm_c_define_gsubr ("ly-set-mus-property", 3, 0, 0, (Scheme_function_unknown)ly_set_mus_property);
- scm_c_define_gsubr ("ly-make-music", 1, 0, 0, (Scheme_function_unknown)ly_make_music);
- scm_c_define_gsubr ("ly-music-name", 1, 0, 0, (Scheme_function_unknown)ly_music_name);
+ Moment mom;
+ if (d)
+ mom = d->get_length ();
+ return mom.smobbed_copy ();
}
-ADD_SCM_INIT_FUNC (musicscm,init_functions);
-ADD_MUSIC(Music);
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