-
/*
timing-translator.cc -- implement Timing_translator
+
source file of the GNU LilyPond music typesetter
- (c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
+ (c) 1997--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
+#include "debug.hh"
#include "timing-translator.hh"
#include "command-request.hh"
#include "translator-group.hh"
#include "global-translator.hh"
+#include "multi-measure-rest.hh"
-Timing_translator::Timing_translator ()
-{
- default_grouping_ = Rhythmic_grouping (MInterval (0,4),4); // ugh
-}
+/*
+ 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_request(Request*r)
+Timing_translator::do_try_music (Music*r)
{
- Command_req * c = r->command();
- if (!(c && c->timing()))
- return false;
- for (int i=0; i < timing_req_l_arr_.size (); i++)
+ if (Timing_req *t = dynamic_cast <Timing_req *> (r))
{
- if (timing_req_l_arr_[i]->equal_b(r))
- return true;
- if (timing_req_l_arr_[i]->name() == r->name())
+ for (int i=0; i < timing_req_l_arr_.size (); i++)
{
- r->warning (_("conflicting timing request"));
- return false;
+ /*
+ 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(c->timing());
- return true;
-}
-
-Meter_change_req*
-Timing_translator::meter_req_l() const
-{
- Meter_change_req *m_l=0;
- for (int i=0; !m_l && i < timing_req_l_arr_.size (); i++)
- {
- m_l=timing_req_l_arr_[i]->meterchange();
+ /*
+ We have to do this soon enough. Maybe we'd better disguise
+ \time as a \property. Then all settings will be `immediate'.
+ */
+ if (Time_signature_change_req *c
+ = dynamic_cast <Time_signature_change_req *> (t))
+ set_time_signature (c->beats_i_, c->one_beat_i_);
+
+ timing_req_l_arr_.push(t);
+ return true;
}
- return m_l;
+ return false;
}
void
-Timing_translator::do_process_requests()
+Timing_translator::do_process_music()
{
for (int i=0; i < timing_req_l_arr_.size (); i++)
{
- Timing_req * tr_l = timing_req_l_arr_[i];
- Meter_change_req *m_l = tr_l->meterchange();
- if (m_l)
+ if (!dynamic_cast <Barcheck_req *> (timing_req_l_arr_[i]))
+ continue;
+ if (measure_position ())
{
- int b_i= m_l->beats_i_;
- int o_i = m_l->one_beat_i_;
- if (! time_.allow_meter_change_b())
- tr_l->warning (_("Meter change not allowed here"));
- else
- {
- time_.set_meter (b_i, o_i);
- default_grouping_ =
- Rhythmic_grouping (MInterval (0,Moment (b_i, o_i)), b_i);
- }
- }
- else if (tr_l->partial())
- {
- Moment m = tr_l->partial()->duration_;
- String error = time_.try_set_partial_str (m);
- if (error.length_i ())
- {
- tr_l->warning (error);
- }
- else
- time_.setpartial (m);
- }
- else if (tr_l->barcheck())
- {
- if (time_.whole_in_measure_)
- {
- tr_l ->warning (_("Barcheck failed"));
-
- time_.whole_in_measure_ = 0; // resync
- time_.error_b_ = true;
- }
-
- }
- else if (tr_l->cadenza())
- {
- time_.set_cadenza (tr_l->cadenza()->on_b_);
-
- }
- else if (tr_l->measuregrouping())
- {
- default_grouping_ =
- parse_grouping (tr_l->measuregrouping()->beat_i_arr_,
- tr_l->measuregrouping()->elt_length_arr_);
+ timing_req_l_arr_[i]->origin ()->warning (_f ("barcheck failed at: %s",
+ measure_position ().str ()));
+ Moment zero;
+ // resync
+ daddy_trans_l_->set_property("measurePosition", zero.make_scm ());
}
}
}
-
void
Timing_translator::do_pre_move_processing()
{
timing_req_l_arr_.set_size (0);
- Global_translator *global_l =
- daddy_trans_l_->ancestor_l (100)->global_l (); // ugh 100.
+ Translator *t = this;
+ Global_translator *global_l =0;
+ do
+ {
+ t = t->daddy_trans_l_ ;
+ global_l = dynamic_cast<Global_translator*> (t);
+ }
+ while (!global_l);
- if (!time_.cadenza_b_)
- global_l->add_moment_to_process (time_.next_bar_moment ());
+ /* allbars == ! skipbars */
+ SCM sb = get_property ("skipBars");
+ bool allbars = !to_boolean (sb);
+
+ // urg: multi bar rests: should always process whole of first bar?
+ SCM tim = get_property ("timing");
+ bool timb = to_boolean (tim);
+ if (timb && allbars)
+ {
+ Moment barleft = (measure_length () - measure_position ());
+
+ if (barleft > Moment (0))
+ global_l->add_moment_to_process (now_mom () + barleft);
+ }
}
-IMPLEMENT_IS_TYPE_B1(Timing_translator, Translator);
+
ADD_THIS_TRANSLATOR(Timing_translator);
void
Timing_translator::do_creation_processing()
{
- time_.when_ = now_moment ();
+ Moment m;
+ daddy_trans_l_->set_property ("timing" , SCM_BOOL_T);
+ daddy_trans_l_->set_property ("currentBarNumber" , gh_int2scm (1));
+ daddy_trans_l_->set_property ("measurePosition", m.make_scm ());
+ daddy_trans_l_->set_property ("beatLength", Moment (1,4).make_scm ());
+ daddy_trans_l_->set_property ("measureLength", Moment (1).make_scm());
+ daddy_trans_l_->set_property ("timeSignatureFraction",
+ gh_cons (gh_int2scm (4), gh_int2scm (4)));
+}
+
+Moment
+Timing_translator::measure_length () const
+{
+ SCM l = get_property("measureLength");
+ if (unsmob_moment(l))
+ return *unsmob_moment (l);
+ else
+ return Moment (1);
+}
+
+
+void
+Timing_translator::set_time_signature (int l, int o)
+{
+ Moment one_beat = Moment (1)/Moment (o);
+ Moment len = Moment (l) * one_beat;
+ daddy_trans_l_->set_property ("measureLength", len.make_scm ());
+ daddy_trans_l_->set_property ("beatLength", one_beat.make_scm ());
+ daddy_trans_l_->set_property ("timeSignatureFraction",
+ gh_cons (gh_int2scm (l), gh_int2scm (o)));
+}
+
+Timing_translator::Timing_translator()
+{
+}
+
+
+Moment
+Timing_translator::measure_position () const
+{
+ SCM sm = get_property ("measurePosition");
+
+ Moment m =0;
+ if (unsmob_moment (sm))
+ {
+ m = *unsmob_moment(sm);
+ while (m < Moment (0))
+ m += measure_length ();
+ }
+
+ return m;
}
void
Timing_translator::do_post_move_processing()
{
- time_.add (now_moment () - time_.when_);
+ Translator *t = this;
+ Global_translator *global_l =0;
+ do
+ {
+ t = t->daddy_trans_l_ ;
+ global_l = dynamic_cast<Global_translator*> (t);
+ }
+ while (!global_l);
+
+ Moment dt = global_l->now_mom_ - global_l -> prev_mom_;
+ if (dt < Moment (0))
+ {
+ programming_error ("Moving backwards in time");
+ dt = 0;
+ }
+
+ if (!dt)
+ return;
+
+ Moment measposp;
+
+ SCM s = get_property ("measurePosition");
+ if (unsmob_moment (s))
+ {
+ measposp = *unsmob_moment(s);
+ }
+ else
+ {
+ daddy_trans_l_->set_property ("measurePosition", measposp.make_scm());
+ }
+
+ measposp += dt;
+
+ SCM barn = get_property ("currentBarNumber");
+ int b = 0;
+ if (gh_number_p(barn))
+ {
+ b = gh_scm2int (barn);
+ }
+
+ SCM cad = get_property ("timing");
+ bool c= to_boolean (cad );
+
+ Moment len = measure_length ();
+ while (c && measposp >= len)
+ {
+ measposp -= len;
+ b ++;
+ }
+
+ daddy_trans_l_->set_property ("currentBarNumber", gh_int2scm (b));
+ daddy_trans_l_->set_property ("measurePosition", measposp.make_scm());
}
+
projects / lilypond.git / blobdiff