source file of the GNU LilyPond music typesetter
- (c) 1996--2002 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1996--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
#include "event.hh"
#include "warn.hh"
-#include "event.hh"
-
+
Moment
Event::get_length () const
{
- Duration *d = unsmob_duration (get_mus_property ("duration"));
+ Duration *d = unsmob_duration (get_property ("duration"));
if (!d)
{
Moment m ;
void
Event::compress (Moment m)
{
- Duration *d = unsmob_duration (get_mus_property ("duration"));
+ Duration *d = unsmob_duration (get_property ("duration"));
if (d)
- set_mus_property ("duration", d ->compressed (m.main_part_).smobbed_copy ());
+ set_property ("duration", d ->compressed (m.main_part_).smobbed_copy ());
}
-void
-Event::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)
- {
- warning (_f ("Transposition by %s makes accidental larger than two",
- delta.string ()));
- }
-
- set_mus_property ("pitch", np.smobbed_copy ());
-}
Pitch
- Event::to_relative_octave (Pitch last)
+Event::to_relative_octave (Pitch last)
{
- Pitch *old_pit = unsmob_pitch (get_mus_property ("pitch"));
+ Pitch *old_pit = unsmob_pitch (get_property ("pitch"));
if (old_pit)
{
Pitch new_pit = *old_pit;
- new_pit.to_relative_octave (last);
- set_mus_property ("pitch", new_pit.smobbed_copy ());
+ 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 ());
return new_pit;
}
{
}
-ADD_MUSIC(Event);
-LY_DEFINE(music_duration_length, "music-duration-length", 1, 0,0,
- (SCM mus),
- "Extract the duration field from @var{mus}, and return the length.")
-{
- Music* m = unsmob_music(mus);
- SCM_ASSERT_TYPE(m, mus, SCM_ARG1, __FUNCTION__, "Music");
-
- Duration *d = unsmob_duration (m->get_mus_property ("duration"));
-
- Moment l ;
-
- if (d)
- {
- l = d->get_length ();
- }
- else
- programming_error("Music has no duration");
- return l.smobbed_copy();
-
-}
-
-
-LY_DEFINE(music_duration_compress, "ly:music-duration-compress", 2, 0,0,
- (SCM mus, SCM factor),
- "Extract the duration field from @var{mus}, and compress it.")
-{
- Music* m = unsmob_music(mus);
- Moment * f = unsmob_moment (factor);
- SCM_ASSERT_TYPE(m, mus, SCM_ARG1, __FUNCTION__, "Music");
- SCM_ASSERT_TYPE(f, factor, SCM_ARG2, __FUNCTION__, "Moment");
-
- Duration *d = unsmob_duration (m->get_mus_property ("duration"));
- if (d)
- m->set_mus_property ("duration", d->compressed (f->main_part_).smobbed_copy());
- return SCM_UNSPECIFIED;
-}
-
-
-
-/*
- This is hairy, since the scale in a key-change event may contain
- octaveless notes.
- */
-LY_DEFINE(transpose_key_alist, "ly:transpose-key-alist",
- 2, 0,0, (SCM l, SCM pitch),
- "Make a new key alist of @var{l} transposed by pitch @var{pitch}")
-{
- SCM newlist = SCM_EOL;
- Pitch *p = unsmob_pitch (pitch);
-
- for (SCM s = l; gh_pair_p (s); s = ly_cdr (s))
- {
- SCM key = ly_caar (s);
- SCM alter = ly_cdar (s);
- if (gh_pair_p (key))
- {
- Pitch orig (gh_scm2int (ly_car (key)),
- gh_scm2int (ly_cdr (key)),
- gh_scm2int (alter));
-
- orig.transpose (*p);
-
- SCM key = gh_cons (scm_int2num (orig.get_octave ()),
- scm_int2num (orig.notename_));
-
- newlist = gh_cons (gh_cons (key, scm_int2num (orig.alteration_)),
- newlist);
- }
- else if (gh_number_p (key))
- {
- Pitch orig (0, gh_scm2int (key), gh_scm2int (alter));
- orig.transpose (*p);
-
- key =scm_int2num (orig.notename_);
- alter = scm_int2num (orig.alteration_);
- newlist = gh_cons (gh_cons (key, alter), newlist);
- }
- }
- return scm_reverse_x (newlist, SCM_EOL);
-}
+ADD_MUSIC (Event);
void
-Key_change_req::transpose (Pitch p)
+Key_change_ev::transpose (Pitch p)
{
- SCM pa = get_mus_property ("pitch-alist");
+ SCM pa = get_property ("pitch-alist");
+ set_property ("pitch-alist", ly_transpose_key_alist (pa, p.smobbed_copy ()));
- set_mus_property ("pitch-alist", transpose_key_alist (pa, p.smobbed_copy()));
+ Event::transpose (p);
}
-
bool
alist_equal_p (SCM a, SCM b)
{
for (SCM s = a;
- gh_pair_p (s); s = ly_cdr (s))
+ scm_is_pair (s); s = scm_cdr (s))
{
- SCM key = ly_caar (s);
- SCM val = ly_cdar (s);
+ SCM key = scm_caar (s);
+ SCM val = scm_cdar (s);
SCM l = scm_assoc (key, b);
if (l == SCM_BOOL_F
- || !gh_equal_p ( ly_cdr (l), val))
+ || !ly_c_equal_p ( scm_cdr (l), val))
return false;
}
return true;
}
-
-bool
-Key_change_req::do_equal_b (Event const * m )const
-{
- Key_change_req const * kc =dynamic_cast<Key_change_req const*> (m);
-
- if(!kc)
- return false;
- return alist_equal_p (get_mus_property ("pitch-alist"),
- kc->get_mus_property ("pitch-alist"));
-}
-
-ADD_MUSIC (Key_change_req);
+ADD_MUSIC (Key_change_ev);
projects / lilypond.git / blobdiff