source file of the GNU LilyPond music typesetter
- (c) 1997--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1997--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
-#include "debug.hh"
+#include "warn.hh"
#include "timing-translator.hh"
-#include "command-request.hh"
+
#include "translator-group.hh"
#include "global-translator.hh"
#include "multi-measure-rest.hh"
-/*
- TODO: change the rest of lily, so communication with
- Timing_translator is only done through properties. This means the
- class declaration can go here. */
-
-bool
-Timing_translator::do_try_music (Music*r)
-{
- if (Timing_req *t = dynamic_cast <Timing_req *> (r))
- {
- for (int i=0; i < timing_req_l_arr_.size (); i++)
- {
- /*
- merge timing reqs.
- */
- if (timing_req_l_arr_[i]->equal_b(t))
- return true;
- if (String (classname (timing_req_l_arr_[i])) == classname (r))
- {
- r->origin ()->warning (_ ("conflicting timing request"));
- timing_req_l_arr_[i]->origin ()->warning (_("This is the other timing request"));
- return false;
- }
- }
-
- timing_req_l_arr_.push(t);
- return true;
- }
- return false;
-}
-
-/*ugh.
- */
-Time_signature_change_req*
-Timing_translator::time_signature_req_l() const
-{
- Time_signature_change_req *m_l=0;
- for (int i=0; !m_l && i < timing_req_l_arr_.size (); i++)
- {
- m_l=dynamic_cast<Time_signature_change_req*> (timing_req_l_arr_[i]);
- }
- return m_l;
-}
void
-Timing_translator::do_process_music()
+Timing_translator::stop_translation_timestep ()
{
- for (int i=0; i < timing_req_l_arr_.size (); i++)
- {
- Timing_req * tr_l = timing_req_l_arr_[i];
-
- if (Time_signature_change_req *m_l = dynamic_cast <Time_signature_change_req *> (tr_l))
- {
- int b_i= m_l->beats_i_;
- int o_i = m_l->one_beat_i_;
- set_time_signature (b_i, o_i);
- }
- else if (dynamic_cast <Barcheck_req *> (tr_l))
- {
- if (measure_position ())
- {
- tr_l ->origin ()->warning (_f ("barcheck failed at: %s",
- measure_position ().str ()));
- // resync
- daddy_trans_l_->set_property("measurePosition",
- smobify (new Moment));
-
- }
- }
- }
-}
-
-
-void
-Timing_translator::do_pre_move_processing()
-{
- timing_req_l_arr_.set_size (0);
Translator *t = this;
- Global_translator *global_l =0;
+ Global_translator *global =0;
do
{
- t = t->daddy_trans_l_ ;
- global_l = dynamic_cast<Global_translator*> (t);
+ t = t->daddy_trans_ ;
+ global = dynamic_cast<Global_translator*> (t);
}
- while (!global_l);
+ while (!global);
/* allbars == ! skipbars */
SCM sb = get_property ("skipBars");
if (timb && allbars)
{
Moment barleft = (measure_length () - measure_position ());
+ Moment now = now_mom ();
- if (barleft > Moment (0))
- global_l->add_moment_to_process (now_mom () + barleft);
+ if (barleft > Moment (0)
+ /*
+ Hmm. We insert the bar moment every time we process a
+ moment. A waste of cpu?
+ */
+ && !now.grace_part_)
+ global->add_moment_to_process (now + barleft);
}
}
-
-ADD_THIS_TRANSLATOR(Timing_translator);
-
void
-Timing_translator::do_creation_processing()
+Timing_translator::initialize ()
{
- daddy_trans_l_->set_property ("timing" , SCM_BOOL_T);
- daddy_trans_l_->set_property ("currentBarNumber" , gh_int2scm (1));
- daddy_trans_l_->set_property ("measurePosition", smobify (new Moment));
- daddy_trans_l_->set_property ("beatLength", smobify (new Moment (1,4)));
- daddy_trans_l_->set_property ("measureLength", smobify (new Moment (1)));
+
+ /*
+ move this to engraver-init.ly?
+ */
+
+ daddy_trans_->set_property ("timing" , SCM_BOOL_T);
+ daddy_trans_->set_property ("currentBarNumber" , gh_int2scm (1));
+
+ daddy_trans_->set_property ("timeSignatureFraction",
+ gh_cons (gh_int2scm (4), gh_int2scm (4)));
+ daddy_trans_->set_property ("measurePosition", Moment (Rational (0)).smobbed_copy ());
+ daddy_trans_->set_property ("measureLength", Moment (Rational (1)).smobbed_copy ());
+ daddy_trans_->set_property ("beatLength", Moment (Rational (1,4)).smobbed_copy ());
}
-Moment
+Rational
Timing_translator::measure_length () const
{
- SCM l = get_property("measureLength");
- if (unsmob_moment(l))
- return *unsmob_moment (l);
+ SCM l = get_property ("measureLength");
+ if (unsmob_moment (l))
+ return unsmob_moment (l)->main_part_;
else
- return Moment (1);
+ return Rational (1);
}
-
-void
-Timing_translator::set_time_signature (int l, int o)
+Timing_translator::Timing_translator ()
{
- Moment one_beat = Moment (1)/Moment (o);
- Moment len = Moment (l) * one_beat;
- daddy_trans_l_->set_property ("measureLength", smobify (new Moment (len)));
- daddy_trans_l_->set_property ("beatLength", smobify (new Moment (one_beat)));
-}
-Timing_translator::Timing_translator()
-{
}
-
Moment
Timing_translator::measure_position () const
{
SCM sm = get_property ("measurePosition");
Moment m =0;
- if (SMOB_IS_TYPE_B (Moment, sm))
+ if (unsmob_moment (sm))
{
- m = *SMOB_TO_TYPE (Moment, sm);
- while (m < Moment (0))
- m += measure_length ();
+ m = *unsmob_moment (sm);
+ while (m.main_part_ < Rational (0))
+ m.main_part_ += measure_length ();
}
return m;
}
void
-Timing_translator::do_post_move_processing()
+Timing_translator::start_translation_timestep ()
{
Translator *t = this;
- Global_translator *global_l =0;
+ Global_translator *global =0;
do
{
- t = t->daddy_trans_l_ ;
- global_l = dynamic_cast<Global_translator*> (t);
+ t = t->daddy_trans_ ;
+ global = dynamic_cast<Global_translator*> (t);
}
- while (!global_l);
+ while (!global);
- Moment dt = global_l->now_mom_ - global_l -> prev_mom_;
+ Moment now = global->now_mom_;
+ Moment dt = now - global -> prev_mom_;
if (dt < Moment (0))
{
programming_error ("Moving backwards in time");
dt = 0;
}
+ else if (dt.main_part_.is_infinity ())
+ {
+ programming_error ("Moving infinitely to future");
+ dt = 0;
+ }
- if (!dt)
+ if (!dt.to_bool ())
return;
- Moment * measposp =0;
+ Moment measposp;
SCM s = get_property ("measurePosition");
- if (SMOB_IS_TYPE_B (Moment, s))
+ if (unsmob_moment (s))
{
- measposp = SMOB_TO_TYPE (Moment,s);
+ measposp = *unsmob_moment (s);
}
else
{
- measposp = new Moment;
- daddy_trans_l_->set_property ("measurePosition", smobify (measposp));
+ measposp = now;
+ daddy_trans_->set_property ("measurePosition", measposp.smobbed_copy ());
}
- *measposp += dt;
- // don't need to set_property
+ measposp += dt;
SCM barn = get_property ("currentBarNumber");
int b = 0;
- if (gh_number_p(barn))
+ if (gh_number_p (barn))
{
b = gh_scm2int (barn);
}
SCM cad = get_property ("timing");
- bool c= to_boolean (cad );
+ bool c= to_boolean (cad);
- Moment len = measure_length ();
- while (c && *measposp >= len)
- {
- *measposp -= len;
- b ++;
- }
+ Rational len = measure_length ();
+ while (c && measposp.main_part_ >= len)
+ {
+ measposp.main_part_ -= len;
+ b ++;
+ }
- daddy_trans_l_->set_property ("currentBarNumber", gh_int2scm (b));
+ daddy_trans_->set_property ("currentBarNumber", gh_int2scm (b));
+ daddy_trans_->set_property ("measurePosition", measposp.smobbed_copy ());
}
+ENTER_DESCRIPTION(Timing_translator,"","","","","","");
projects / lilypond.git / blobdiff