/*
timing-translator.cc -- implement Timing_translator
+
source file of the GNU LilyPond music typesetter
- (c) 1997--1999 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1997--2001 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, 1), 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_music (Music*r)
+Timing_translator::try_music (Music*r)
{
- if (Timing_req *t = dynamic_cast <Timing_req *> (r))
+ if (dynamic_cast<Barcheck_req*> (r))
{
- for (int i=0; i < timing_req_l_arr_.size (); i++)
- {
- if (timing_req_l_arr_[i]->equal_b(t))
- return true;
- if (String (classname (timing_req_l_arr_[i])) == classname (r))
- {
- r->warning (_ ("conflicting timing request"));
- return false;
- }
- }
-
- timing_req_l_arr_.push(t);
+ check_ = r;
return true;
}
return false;
}
-/*ugh.
- */
-Time_signature_change_req*
-Timing_translator::time_signature_req_l() const
+void
+Timing_translator::process_music ()
{
- Time_signature_change_req *m_l=0;
- for (int i=0; !m_l && i < timing_req_l_arr_.size (); i++)
+ if (check_ && measure_position ())
{
- m_l=dynamic_cast<Time_signature_change_req*> (timing_req_l_arr_[i]);
+ check_->origin ()->warning (_f ("barcheck failed at: %s",
+ measure_position ().str ()));
+ Moment zero;
+
+ if (!to_boolean (get_property ("barCheckNoSynchronize")))
+ daddy_trans_l_->set_property ("measurePosition", zero.smobbed_copy ());
}
- return m_l;
-}
-void
-Timing_translator::do_process_requests()
-{
- for (int i=0; i < timing_req_l_arr_.size (); i++)
+ SCM fr = get_property ("timeSignatureFraction");
+
+ if (scm_equal_p (fr, last_time_sig_) == SCM_BOOL_F)
{
- 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_;
- if (! time_.allow_time_signature_change_b())
- tr_l->warning (_ ("time signature change not allowed here"));
- else
- {
- time_.set_time_signature (b_i, o_i);
- default_grouping_ =
- Rhythmic_grouping (MInterval (0,Moment (b_i, o_i)), b_i);
- }
- }
- else if (Partial_measure_req *pm = dynamic_cast <Partial_measure_req *> (tr_l))
- {
- Moment m = pm->length_mom_;
- String error = time_.try_set_partial_str (m);
- if (error.length_i ())
- {
- tr_l->warning (error);
- }
- else
- time_.setpartial (m);
- }
- else if (dynamic_cast <Barcheck_req *> (tr_l))
- {
- if (time_.whole_in_measure_)
- {
- tr_l ->warning (_f ("barcheck failed by: %s",
- time_.whole_in_measure_.str ()));
-
- time_.whole_in_measure_ = 0; // resync
- time_.error_b_ = true;
- }
- }
- else if (Cadenza_req *cr = dynamic_cast <Cadenza_req *> (tr_l))
- {
- time_.set_cadenza (cr->on_b_);
- }
- else if (Measure_grouping_req *mg=dynamic_cast <Measure_grouping_req *> (tr_l))
- {
- default_grouping_ =
- parse_grouping (mg->beat_i_arr_,
- mg->elt_length_arr_);
-
- }
+ last_time_sig_ = fr;
+ set_time_signature ();
}
}
void
-Timing_translator::do_pre_move_processing()
+Timing_translator::stop_translation_timestep ()
{
- timing_req_l_arr_.set_size (0);
- Global_translator *global_l =
- dynamic_cast<Global_translator*> (daddy_trans_l_->ancestor_l (100)); // ugh 100.
-
+ check_ = 0;
+
+ Translator *t = this;
+ Global_translator *global_l =0;
+ do
+ {
+ t = t->daddy_trans_l_ ;
+ global_l = dynamic_cast<Global_translator*> (t);
+ }
+ while (!global_l);
/* allbars == ! skipbars */
- bool allbars = ! get_property ("SkipBars", 0).to_bool ();
+ SCM sb = get_property ("skipBars");
+ bool allbars = !to_boolean (sb);
- // urg: multi bar rests: should always must process whole of first bar?
- if (!time_.cadenza_b_ && allbars)
- global_l->add_moment_to_process (time_.next_bar_moment ());
+ // 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);
+ }
}
-ADD_THIS_TRANSLATOR(Timing_translator);
+ADD_THIS_TRANSLATOR (Timing_translator);
void
-Timing_translator::do_creation_processing()
+Timing_translator::initialize ()
+{
+ 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.smobbed_copy ());
+ daddy_trans_l_->set_property ("timeSignatureFraction",
+ gh_cons (gh_int2scm (4), gh_int2scm (4)));
+
+ set_time_signature ();
+}
+
+Moment
+Timing_translator::measure_length () const
{
- time_.when_ = now_mom ();
+ SCM l = get_property ("measureLength");
+ if (unsmob_moment (l))
+ return *unsmob_moment (l);
+ else
+ return Moment (1);
}
+
void
-Timing_translator::do_post_move_processing()
+Timing_translator::set_time_signature ()
+{
+ SCM fr = get_property ("timeSignatureFraction");
+ int l = gh_scm2int (gh_car (fr));
+ int o = gh_scm2int (gh_cdr (fr));
+
+ Moment one_beat = Moment (1)/Moment (o);
+ Moment len = Moment (l) * one_beat;
+
+ daddy_trans_l_->set_property ("measureLength", len.smobbed_copy ());
+ daddy_trans_l_->set_property ("beatLength", one_beat.smobbed_copy ());
+}
+
+Timing_translator::Timing_translator ()
+{
+
+ last_time_sig_ = SCM_BOOL_F;
+
+}
+
+
+Moment
+Timing_translator::measure_position () const
{
- time_.add (now_mom () - time_.when_);
+ 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_print () const
+Timing_translator::start_translation_timestep ()
{
-#ifndef NPRINT
- time_.print ();
- default_grouping_.print ();
-#endif
+ check_ =00;
+ 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.smobbed_copy ());
+ }
+
+ 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.smobbed_copy ());
}
+
projects / lilypond.git / blobdiff