source file of the GNU LilyPond music typesetter
- (c) 1997--2002 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1997--2003 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
#include "main.hh"
#include "pitch.hh"
#include "ly-smobs.icc"
-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;
-}
-
-
-
-
+SCM ly_deep_mus_copy (SCM);
bool
Music::internal_is_music_type (SCM k)const
return scm_memq (k, ifs) != SCM_BOOL_F;
}
+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_;
return SCM_EOL;
}
-void
-Music::compress (Moment f)
-{
- SCM l = get_mus_property ("compress-procedure");
- if (gh_procedure_p (l))
- {
- SCM res = gh_call2 (l, self_scm (), f.smobbed_copy());
- }
-}
-
-
Moment
-Music::length_mom () const
+Music::get_length () const
{
SCM l = get_mus_property ("length");
if (unsmob_moment (l))
{
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_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 m)
+Music::to_relative_octave (Pitch p)
{
- return m;
+ 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)
{
- Pitch *p = unsmob_pitch (get_mus_property ("pitch"));
- if (!p)
- return ;
+ SCM elt = get_mus_property ("element");
- Pitch np = *p;
- np.transpose (delta);
-
- if (abs (np.alteration_) > 2)
- {
- warning (_f ("Transposition by %s makes accidental larger than two",
- delta.string ()));
- }
+ if (Music* m = unsmob_music (elt))
+ m->transpose (delta);
- set_mus_property ("pitch", np.smobbed_copy ());
+ transpose_music_list (get_mus_property ("elements"), delta);
}
-IMPLEMENT_TYPE_P (Music, "music?");
+
+IMPLEMENT_TYPE_P (Music, "ly:music?");
IMPLEMENT_SMOBS (Music);
IMPLEMENT_DEFAULT_EQUAL_P (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}.")
+ "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");
}
LY_DEFINE(ly_set_mus_property,
- "ly-set-mus-property!", 3, 0, 0,
+ "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}.")
{
}
-LY_DEFINE(ly_music_name, "ly-music-name", 1, 0, 0,
+LY_DEFINE(ly_music_name, "ly:music-name", 1, 0, 0,
(SCM mus),
"Return the name of @var{music}.")
{
// 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.
-")
+ "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");
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.")
{
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}")
+{
+ 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;
+}
+
+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;
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