(c) 1999 Jan Nieuwenhuizen <janneke@gnu.org>
*/
-
+#include "new-beaming.hh"
#include "auto-beam-engraver.hh"
#include "musical-request.hh"
#include "bar.hh"
#include "beam.hh"
-#include "grouping.hh"
#include "rest.hh"
#include "stem.hh"
#include "debug.hh"
-#include "time-description.hh"
+#include "timing-engraver.hh"
+#include "engraver-group-engraver.hh"
ADD_THIS_TRANSLATOR (Auto_beam_engraver);
Auto_beam_engraver::Auto_beam_engraver ()
{
- beam_p_ = 0;
+ stem_l_arr_p_ = 0;
+ shortest_mom_ = Moment (1, 8);
finished_beam_p_ = 0;
finished_grouping_p_ = 0;
grouping_p_ = 0;
+ timer_l_ =0;
}
-/*
- should move this to rational, but may reject now
- */
-Rational
-str2rat (String str)
+void
+Auto_beam_engraver::do_creation_processing ()
+{
+ Translator * t = daddy_grav_l ()->get_simple_translator ("Timing_engraver");
+ timer_l_ = dynamic_cast<Timing_engraver*> (t);
+}
+
+bool
+Auto_beam_engraver::do_try_music (Music* m)
{
- int num;
- int den = 1;
- if (int i = str.index_i ('/') != -1)
+ /*
+ Mag dit? Nu word-i toch maar geswallowed, en
+ komt er dus ook geen announce...
+ */
+ if (Skip_req* s = dynamic_cast <Skip_req*> (m))
{
- den = str.cut_str (i + 1, str.length_i ()).value_i ();
- str = str.left_str (i);
+ if (stem_l_arr_p_)
+ end_beam ();
+ return true;
}
- num = str.value_i ();
- return Rational (num, den);
-}
+ return false;
+}
void
Auto_beam_engraver::do_process_requests ()
{
- Time_description const *time = get_staff_info().time_C_;
+ consider_end_and_begin (shortest_mom_);
+}
+
+void
+Auto_beam_engraver::consider_end_and_begin (Moment test_mom)
+{
+ if (!timer_l_)
+ return;
+
+ Time_description const *time = &timer_l_->time_;
+ int num = time->whole_per_measure_ / time->one_beat_;
+ int den = time->one_beat_.den_i ();
+ String time_str = String ("time") + to_str (num) + "_" + to_str (den);
+
+ String type_str;
+ if (test_mom.num () != 1)
+ type_str = to_str (test_mom.num ());
+ if (test_mom.den () != 1)
+ type_str = type_str + "_" + to_str (test_mom.den ());
+
+ /*
+ Determine end moment for auto beaming (and begin, mostly 0==anywhere)
+ In order of increasing priority:
+
+ i. every beat <den>
+ ii. time<num>_<den>beamAutoEnd
+ iii. time<num>_<den>beamAutoEnd<type>
+ iv. beamAutoEnd
+ v. beamAutoEnd<type>
+
+
+ Rationale:
+
+ [to be defined in config file]
+ i. easy catch-all rule
+ ii. exceptions for time signature
+ iii. exceptions for time signature, for specific duration type
+
+ [user override]
+ iv. generic override
+ v. override for specific duration type
+
+ The user overrides should be required for common cases.
+ */
+
+ /*
+ first guess: begin beam at any position
+ */
+ Moment begin_mom (0);
+ /*
+ first guess: end beam at end of beat
+ */
+ Moment end_mom = time->one_beat_;
+
+ /*
+ second guess: property generic time exception
+ */
+ Scalar begin = get_property (time_str + "beamAutoBegin", 0);
+ if (begin.length_i ())
+ begin_mom = begin.to_rat ();
+
+ Scalar end = get_property (time_str + "beamAutoEnd", 0);
+ if (end.length_i ())
+ end_mom = end.to_rat ();
+
+ /*
+ third guess: property time exception, specific for duration type
+ */
+ if (type_str.length_i ())
+ {
+ Scalar end_mult = get_property (time_str + "beamAutoEnd" + type_str, 0);
+ if (end_mult.length_i ())
+ end_mom = end_mult.to_rat ();
+ Scalar begin_mult = get_property (time_str + "beamAutoBegin" + type_str, 0);
+ if (begin_mult.length_i ())
+ begin_mom = begin_mult.to_rat ();
+ }
- Scalar begin = get_property ("beamAutoBegin", 0);
- Moment begin_mom = str2rat (begin);
+ /*
+ fourth guess [user override]: property plain generic
+ */
+ begin = get_property ("beamAutoBegin", 0);
+ if (begin.length_i ())
+ begin_mom = begin.to_rat ();
- Scalar end = get_property ("beamAutoEnd", 0);
- Moment end_mom = str2rat (end);
+ end = get_property ("beamAutoEnd", 0);
+ if (end.length_i ())
+ end_mom = end.to_rat ();
- if (mult_i_)
+ /*
+ fifth guess [user override]: property plain, specific for duration type
+ */
+ if (type_str.length_i ())
{
- Scalar end_mult = get_property (String ("beamAutoEnd")
- + to_str (1 << (mult_i_ + 2)), 0);
+ Scalar end_mult = get_property (String ("beamAutoEnd") + type_str, 0);
if (end_mult.length_i ())
- end_mom = str2rat (end_mult);
- else if (end_mom / Moment (mult_i_, 1) > Moment (4))
- end_mom /= Moment (mult_i_);
+ end_mom = end_mult.to_rat ();
+ Scalar begin_mult = get_property (String ("beamAutoBegin") + type_str, 0);
+ if (begin_mult.length_i ())
+ begin_mom = begin_mult.to_rat ();
}
- Real f;
+ Rational r;
if (end_mom)
- f = fmod (time->whole_in_measure_, end_mom);
+ r = time->whole_in_measure_.mod_rat (end_mom);
else
- f = Moment (1);
+ r = Moment (1);
- // enge floots
- Real epsilon_f = Moment (1, 512);
- if (beam_p_ && (abs (f) < epsilon_f))
+ if (stem_l_arr_p_ && !r)
end_beam ();
/*
return;
if (begin_mom)
- f = fmod (time->whole_in_measure_, begin_mom);
- if (!beam_p_ && (!begin_mom || (abs (f) < epsilon_f)))
+ r = time->whole_in_measure_.mod_rat (begin_mom);
+ if (!stem_l_arr_p_ && (!begin_mom || !r))
begin_beam ();
}
void
Auto_beam_engraver::begin_beam ()
{
- DOUT << String ("starting autobeam at: ") + now_moment ().str () + "\n";
- beam_p_ = new Beam;
- grouping_p_ = new Rhythmic_grouping;
+ assert (!stem_l_arr_p_);
+ stem_l_arr_p_ = new Array<Stem*>;
+ assert (!grouping_p_);
+ grouping_p_ = new Beaming_info_list;
+ beam_start_moment_ = now_mom ();
+ beam_start_location_ = timer_l_->time_.whole_in_measure_;
+}
+
+Beam*
+Auto_beam_engraver::create_beam_p ()
+{
+ Beam* beam_p = new Beam;
+
+ for (int i = 0; i < stem_l_arr_p_->size (); i++)
+ beam_p->add_stem ((*stem_l_arr_p_)[i]);
- /* urg, copied from Beam_engraver */
+ /* urg, copied from Beam_engraver */
Scalar prop = get_property ("beamslopedamping", 0);
if (prop.isnum_b ())
- beam_p_->damping_i_ = prop;
+ beam_p->set_elt_property (damping_scm_sym, gh_int2scm( prop));
prop = get_property ("beamquantisation", 0);
if (prop.isnum_b ())
- beam_p_->quantisation_ = (Beam::Quantisation)(int)prop;
+ beam_p->quantisation_ = (Beam::Quantisation)(int)prop;
- // must set minVerticalAlign = = maxVerticalAlign to get sane results
- // see input/test/beam-interstaff.ly
- prop = get_property ("minVerticalAlign", 0);
- if (prop.isnum_b ())
- beam_p_->vertical_align_drul_[MIN] = prop;
-
- prop = get_property ("maxVerticalAlign", 0);
- if (prop.isnum_b ())
- beam_p_->vertical_align_drul_[MAX] = prop;
-
- announce_element (Score_element_info (beam_p_, 0));
+ announce_element (Score_element_info (beam_p, 0));
+ return beam_p;
}
void
Auto_beam_engraver::end_beam ()
{
- DOUT << String ("ending autobeam at: ") + now_moment ().str () + "\n";
- if (beam_p_->stems_.size () < 2)
+ if (stem_l_arr_p_->size () < 2)
{
- DOUT << "junking autombeam: less than two stems\n";
junk_beam ();
}
else
{
- finished_beam_p_ = beam_p_;
+ finished_beam_p_ = create_beam_p ();
finished_grouping_p_ = grouping_p_;
- beam_p_ = 0;
+ delete stem_l_arr_p_;
+ stem_l_arr_p_ = 0;
grouping_p_ = 0;
- mult_i_ = 0;
+ shortest_mom_ = Moment (1, 8);
}
}
{
if (finished_beam_p_)
{
- Rhythmic_grouping const * rg_C = get_staff_info().rhythmic_C_;
- rg_C->extend (finished_grouping_p_->interval());
- finished_beam_p_->set_grouping (*rg_C, *finished_grouping_p_);
+ finished_grouping_p_->beamify ();
+ finished_beam_p_->set_beaming (finished_grouping_p_);
typeset_element (finished_beam_p_);
finished_beam_p_ = 0;
void
Auto_beam_engraver::do_removal_processing ()
{
+ if (stem_l_arr_p_)
+ end_beam ();
typeset_beam ();
- if (beam_p_)
- {
- DOUT << "Unfinished beam\n";
- junk_beam ();
- }
+}
+
+bool
+Auto_beam_engraver::same_grace_state_b (Score_element* e)
+{
+ bool gr = (e->get_elt_property (grace_scm_sym) != SCM_BOOL_F) ;
+
+ return gr == get_property ("weAreGraceContext",0).to_bool ();
}
void
Auto_beam_engraver::acknowledge_element (Score_element_info info)
{
- if (Beam *b = dynamic_cast<Beam *> (info.elem_l_))
+ if (!same_grace_state_b (info.elem_l_) || !timer_l_)
+ return;
+
+ if (stem_l_arr_p_)
{
- if (beam_p_)
+ if (Beam *b = dynamic_cast<Beam *> (info.elem_l_))
{
- DOUT << "junking autobeam: beam encountered\n";
junk_beam ();
}
- }
- if (Bar *b = dynamic_cast<Bar *> (info.elem_l_))
- {
- if (beam_p_)
+ else if (Bar *b = dynamic_cast<Bar *> (info.elem_l_))
{
- DOUT << "junking autobeam: bar encountered\n";
junk_beam ();
}
- }
-
- if (beam_p_)
- {
- Rhythmic_req *rhythmic_req = dynamic_cast <Rhythmic_req *> (info.req_l_);
- if (!rhythmic_req)
- return;
-
- if (dynamic_cast<Rest *> (info.elem_l_))
+ else if (Rest* rest_l = dynamic_cast<Rest *> (info.elem_l_))
{
- DOUT << "junking autobeam: rest encountered\n";
end_beam ();
- return;
}
-
- Stem* stem_l = dynamic_cast<Stem *> (info.elem_l_);
- if (!stem_l)
- return;
-
- if (stem_l->beam_l_ && (stem_l->beam_l_ != beam_p_))
+ else if (Stem* stem_l = dynamic_cast<Stem *> (info.elem_l_))
{
- DOUT << "junking autobeam: beamed stem encountered\n";
- junk_beam ();
- return;
- }
-
+ Rhythmic_req *rhythmic_req = dynamic_cast <Rhythmic_req *> (info.req_l_);
+ if (!rhythmic_req)
+ {
+ programming_error ("Stem must have rhythmic structure");
+ return;
+ }
+
+ if (stem_l->beam_l_)
+ {
+ junk_beam ();
+ return ;
+ }
+
+ /*
+ now that we have last_add_mom_, perhaps we can (should) do away
+ with these individual junk_beams
+ */
- /*
- now that we have last_add_mom_, perhaps we can (should) do away
- with these individual junk_beams
- */
- if (rhythmic_req->duration_.durlog_i_<= 2)
- {
- DOUT << "ending autobeam: stem doesn't fit in beam\n";
- end_beam ();
- return;
- }
+ int durlog =rhythmic_req->duration_.durlog_i_;
+ if (durlog <= 2)
+ end_beam ();
+ else
+ {
+ /*
+ if shortest duration would change
+ reconsider ending/starting beam first.
+ */
+ Moment mom = rhythmic_req->duration_.length_mom ();
+ consider_end_and_begin (mom);
+ if (!stem_l_arr_p_)
+ return;
+ if (mom < shortest_mom_)
+ {
+ if (stem_l_arr_p_->size ())
+ {
+ shortest_mom_ = mom;
+ consider_end_and_begin (shortest_mom_);
+ if (!stem_l_arr_p_)
+ return;
+ }
+ shortest_mom_ = mom;
+ }
+ Moment now = now_mom ();
- Moment start = get_staff_info().time_C_->whole_in_measure_;
- if (!grouping_p_->child_fit_b (start))
- {
- DOUT << "ending autobeam: stem doesn't fit in group\n";
- end_beam ();
- }
- else
- {
- grouping_p_->add_child (start, rhythmic_req->duration ());
- stem_l->flag_i_ = rhythmic_req->duration_.durlog_i_;
- beam_p_->add_stem (stem_l);
- Moment now = now_moment ();
- last_add_mom_ = now;
- extend_mom_ = extend_mom_ >? now + rhythmic_req->duration ();
- mult_i_ = mult_i_ >? (rhythmic_req->duration_.durlog_i_ - 2);
+ grouping_p_->add_stem (now - beam_start_moment_ + beam_start_location_, durlog - 2);
+ stem_l_arr_p_->push (stem_l);
+ last_add_mom_ = now;
+ extend_mom_ = extend_mom_ >? now + rhythmic_req->length_mom ();
+ }
}
}
}
void
Auto_beam_engraver::junk_beam ()
{
- assert (beam_p_);
- for (int i=0; i < beam_p_->stems_.size (); i++)
- {
- Stem* s = beam_p_->stems_[i];
- s->beams_i_drul_[LEFT] = 0;
- s->beams_i_drul_[RIGHT] = 0;
- s->mult_i_ = 0;
- s->beam_l_ = 0;
- }
+ assert (stem_l_arr_p_);
- beam_p_->unlink ();
- beam_p_ = 0;
+ delete stem_l_arr_p_;
+ stem_l_arr_p_ = 0;
delete grouping_p_;
grouping_p_ = 0;
- mult_i_ = 0;
+ shortest_mom_ = Moment (1, 8);
}
void
Auto_beam_engraver::process_acknowledged ()
{
- if (beam_p_)
+ if (stem_l_arr_p_)
{
- Moment now = now_moment ();
+ Moment now = now_mom ();
if ((extend_mom_ < now)
|| ((extend_mom_ == now) && (last_add_mom_ != now )))
{
- DOUT << String ("junking autobeam: no stem added since: ")
- + last_add_mom_.str () + "\n";
end_beam ();
}
- else if (!beam_p_->stems_.size ())
+ else if (!stem_l_arr_p_->size ())
{
- DOUT << "junking started autobeam: no stems\n";
junk_beam ();
}
}
projects / lilypond.git / blobdiff