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 "main.hh"
-#include "input-smob.hh"
#include "music.hh"
-#include "music-list.hh"
-#include "warn.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_;
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_);
+ 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
{
- SCM l = get_mus_property ("start-moment-function");
- if (gh_procedure_p (l))
+ SCM lst = start_callback_;
+ if (ly_is_procedure (lst))
{
- SCM res = gh_call1 (l, self_scm ());
+ SCM res = scm_call_1 (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.
- */
- for (SCM s = a; s != SCM_EOL; 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);
- print_alist (m->mutable_property_alist_, p);
- print_alist (m->immutable_property_alist_, p);
-
- scm_puts (">",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::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_) > 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.string ()));
+ 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");
+
+ if (Music *m = unsmob_music (elt))
+ m->transpose (delta);
-IMPLEMENT_TYPE_P (Music, "music?");
+ 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);
+ return (s == SCM_BOOL_F) ? SCM_EOL : scm_cdr (s);
}
-void
-Music::internal_set_mus_property (SCM s, SCM v)
+SCM
+Music::internal_get_object (SCM s) const
{
-#ifndef NDEBUG
- if (internal_type_checking_global_b)
- assert (type_check_assignment (s, v, ly_symbol2scm ("music-type?")));
-#endif
-
- mutable_property_alist_ = scm_assq_set_x (mutable_property_alist_, s, v);
+ return internal_get_property (s);
}
-
-
-#include "main.hh"
-
void
-Music::set_spot (Input ip)
+Music::internal_set_object (SCM s, SCM v)
{
- set_mus_property ("origin", make_input (ip));
+ return internal_set_property (s, v);
}
-Input*
-Music::origin () const
+void
+Music::internal_set_property (SCM s, SCM v)
{
- Input *ip = unsmob_input (get_mus_property ("origin"));
- return ip ? ip : & dummy_input_global;
-}
-
+ if (do_internal_type_checking_global)
+ if (!type_check_assignment (s, v, ly_symbol2scm ("music-type?")))
+ abort ();
-Music::~Music ()
-{
-
+ mutable_property_alist_ = scm_assq_set_x (mutable_property_alist_, s, v);
}
-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}.")
+void
+Music::set_spot (Input ip)
{
- 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");
-
- return sc->internal_get_mus_property (sym);
+ set_property ("origin", make_input (ip));
}
-LY_DEFINE(ly_set_mus_property,
- "ly-set-mus-property!", 3, 0, 0,
- (SCM mus, SCM sym, SCM val),
- "Set property @var{sym} in music expression @var{mus} to @var{val}.")
+Input *
+Music::origin () const
{
- Music * sc = unsmob_music (mus);
- SCM_ASSERT_TYPE(sc, mus, SCM_ARG1, __FUNCTION__, "grob");
- 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);
- }
-
- return SCM_UNSPECIFIED;
+ Input *ip = unsmob_input (get_property ("origin"));
+ return ip ? ip : &dummy_input_global;
}
-
-// to do property args
-LY_DEFINE(ly_make_music,
- "ly-make-music", 1, 0, 0, (SCM type),
- "
-Make a music object/expression of type @var{name}. 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.
-")
+Music *
+make_music_by_name (SCM sym)
{
- SCM_ASSERT_TYPE(gh_string_p (type), type, SCM_ARG1, __FUNCTION__, "string");
-
- SCM s = make_music (ly_scm2string (type))->self_scm ();
- scm_gc_unprotect_object (s);
-
- return s;
-}
+ SCM make_music_proc = ly_lily_module_constant ("make-music");
+ SCM rv = scm_call_1 (make_music_proc, sym);
-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);
- return scm_makfrom0str (nm);
+ /* UGH. */
+ Music *m = unsmob_music (rv);
+ m->protect ();
+ return m;
}
-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.")
+MAKE_SCHEME_CALLBACK (Music, duration_length_callback, 1);
+SCM
+Music::duration_length_callback (SCM m)
{
- if (scm_list_p (l) != SCM_BOOL_T)
- return SCM_BOOL_F;
+ Music *me = unsmob_music (m);
+ Duration *d = unsmob_duration (me->get_property ("duration"));
- while (gh_pair_p (l))
- {
- if (!unsmob_music (gh_car (l)))
- return SCM_BOOL_F;
- l =gh_cdr (l);
- }
- return SCM_BOOL_T;
+ Moment mom;
+ if (d)
+ mom = d->get_length ();
+ return mom.smobbed_copy ();
}
-ADD_MUSIC(Music);
-
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