source file of the GNU LilyPond music typesetter
- (c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
+ (c) 1997--2003 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
-
+#include "main.hh"
+#include "input-smob.hh"
#include "music.hh"
#include "music-list.hh"
-#include "debug.hh"
+#include "warn.hh"
+#include "pitch.hh"
+#include "ly-smobs.icc"
+
-MInterval
-Music::time_int() const
+SCM ly_deep_mus_copy (SCM);
+
+bool
+Music::internal_is_music_type (SCM k)const
{
- return MInterval (0,0);
+ SCM ifs = get_mus_property ("types");
+
+ return scm_memq (k, ifs) != SCM_BOOL_F;
}
-void
-Music::print() const
+String
+Music::name () const
+{
+ SCM nm = get_mus_property ("name");
+ if (gh_symbol_p (nm))
+ {
+ return ly_symbol2string (nm);
+ }
+ else
+ {
+ return classname (this);
+ }
+}
+
+
+
+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.
+ */
+ smobify_self ();
+ mutable_property_alist_ = ly_deep_mus_copy (m.mutable_property_alist_);
+ set_spot (*m.origin ());
+}
+
+Music::Music ()
{
-#ifndef NPRINT
- if (! check_debug)
- return ;
- DOUT << name() << "{";
- if (type_str_!="" || id_str_!="")
- DOUT << "`" <<type_str_ << " = " << id_str_<<"\'";
- do_print();
- DOUT << "}\n";
-#endif
+ self_scm_ = SCM_EOL;
+ immutable_property_alist_ = SCM_EOL;
+ mutable_property_alist_ = SCM_EOL;
+ smobify_self ();
+}
+
+SCM
+Music::get_property_alist (bool m) const
+{
+ return (m) ? mutable_property_alist_ : immutable_property_alist_;
+}
+
+SCM
+Music::mark_smob (SCM 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::get_length () const
+{
+ SCM l = get_mus_property ("length");
+ if (unsmob_moment (l))
+ return *unsmob_moment (l);
+ else if (gh_procedure_p (l))
+ {
+ SCM res = gh_call1 (l, 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 res = gh_call1 (l, self_scm ());
+ return *unsmob_moment (res);
+ }
+
+ Moment m ;
+ return m;
}
void
-Music::transpose (Melodic_req const*)
+print_alist (SCM a, SCM port)
{
+ /*
+ 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_write (ly_cdar (s), port);
+ scm_puts ("\n", port);
+ }
+}
+
+int
+Music::print_smob (SCM s, SCM p, scm_print_state*)
+{
+ scm_puts ("#<Music ", p);
+ Music* m = unsmob_music (s);
+
+ SCM nm = m->get_mus_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 p)
+{
+ SCM elt = get_mus_property ("element");
+
+ if (Music* m = unsmob_music (elt))
+ p = m->to_relative_octave (p);
+
+ p = music_list_to_relative (get_mus_property ("elements"),
+ p, false);
+ return p;
+}
+
+void
+Music::compress (Moment factor)
+{
+ SCM elt = get_mus_property ("element");
+
+ if (Music* m = unsmob_music (elt))
+ m->compress (factor);
+
+ compress_music_list (get_mus_property ("elements"), factor);
+}
+
+
+void
+Music::transpose (Pitch delta)
+{
+ SCM elt = get_mus_property ("element");
+
+ if (Music* m = unsmob_music (elt))
+ m->transpose (delta);
+
+ transpose_music_list (get_mus_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
+{
+ 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);
}
void
-Music::translate (Moment)
+Music::internal_set_mus_property (SCM s, SCM v)
{
+ if (internal_type_checking_global_b)
+ if (!type_check_assignment (s, v, ly_symbol2scm ("music-type?")))
+ abort ();
+
+ mutable_property_alist_ = scm_assq_set_x (mutable_property_alist_, s, v);
}
+
+
+#include "main.hh"
+
void
-Music::do_print() const
+Music::set_spot (Input ip)
{
+ set_mus_property ("origin", make_input (ip));
}
+Input*
+Music::origin () const
+{
+ Input *ip = unsmob_input (get_mus_property ("origin"));
+ return ip ? ip : & dummy_input_global;
+}
-IMPLEMENT_IS_TYPE_B(Music);
+Music::~Music ()
+{
+
+}
+LY_DEFINE(ly_get_music_length,
+ "ly:get-music-length", 1, 0, 0, (SCM mus),
+ "Get the length (in musical time) of music expression @var{mus}.")
+{
+ 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}.\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");
+ return sc->internal_get_mus_property (sym);
+}
+
+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}.")
+{
+ 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");
+
+ bool ok = type_check_assignment (sym, val, ly_symbol2scm ("music-type?"));
+ if (ok)
+ {
+ sc->internal_set_mus_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");
-Music::Music()
+ const char * 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\n"
+"@var{props}. Warning: this interface will likely change in the near\n"
+"future.\n"
+"\n"
+"Music is the data type that music expressions are stored in. The data\n"
+"type does not yet offer many manipulations.\n"
+"\n"
+"WARNING: only for internal use. Please use make-music-by-name. \n"
+)
+{
+ 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}.\n"
+"The immutable properties are not available; they should be initialized\n"
+"by the functions make-music-by-name 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,"music-list?", 1, 0, 0,
+ (SCM l),"Type predicate: return true if @var{l} is a list of music objects.")
+{
+ if (scm_list_p (l) != SCM_BOOL_T)
+ return SCM_BOOL_F;
+
+ 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}")
{
- parent_music_l_ =0;
+ 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;
}
-IMPLEMENT_IS_TYPE_B1(Change_reg,Music)
+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);
+ return sc->self_scm(); // SCM_UNDEFINED ?
+}
+
+SCM make_music_proc;
+
+
+Music*
+make_music_by_name (SCM sym)
+{
+ if (!make_music_proc)
+ make_music_proc = scm_primitive_eval (ly_symbol2scm ("make-music-by-name"));
+
+ SCM rv = scm_call_1 (make_music_proc, sym);
+
+ /*
+ UGH.
+ */
+ scm_gc_protect_object (rv);
+ return unsmob_music (rv);
+}
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