source file of the GNU LilyPond music typesetter
- (c) 1999 Jan Nieuwenhuizen <janneke@gnu.org>
+ (c) 1999--2000 Jan Nieuwenhuizen <janneke@gnu.org>
*/
-
+#include "beaming.hh"
#include "auto-beam-engraver.hh"
#include "musical-request.hh"
#include "bar.hh"
#include "beam.hh"
-#include "rhythmic-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);
+
+/*
+ TODO: remove all references to Timing_engraver; should read properties.
+
+ */
Auto_beam_engraver::Auto_beam_engraver ()
{
stem_l_arr_p_ = 0;
- shortest_mom_ = 1;
+ shortest_mom_ = Moment (1, 8);
finished_beam_p_ = 0;
finished_grouping_p_ = 0;
grouping_p_ = 0;
+ timer_l_ =0;
}
void
-Auto_beam_engraver::do_process_requests ()
+Auto_beam_engraver::do_creation_processing ()
{
- consider_end_and_begin ();
+ 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*)
+{
+ return false;
+}
+
void
-Auto_beam_engraver::consider_end_and_begin ()
+Auto_beam_engraver::do_process_music ()
{
- Time_description const *time = get_staff_info().time_C_;
- int num = time->whole_per_measure_ / time->one_beat_;
- int den = time->one_beat_.den_i ();
+ consider_end_and_begin (shortest_mom_);
+}
+
+void
+Auto_beam_engraver::consider_end_and_begin (Moment test_mom)
+{
+ if (!timer_l_)
+ return;
+
+ int num;
+ int den;
+ timer_l_->get_time_signature (&num, &den);
+
String time_str = String ("time") + to_str (num) + "_" + to_str (den);
+
String type_str;
- if (shortest_mom_.num () != 1)
- type_str = to_str (shortest_mom_.num ());
- if (shortest_mom_.den () != 1)
- type_str = type_str + "_" + to_str (shortest_mom_.den ());
+ 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 ());
+
+ /*
+ URG
+
+ FIXME: SHOULD USE ALIST
+
+ */
/*
Determine end moment for auto beaming (and begin, mostly 0==anywhere)
/*
first guess: end beam at end of beat
*/
- Moment end_mom = time->one_beat_;
+ SCM one (get_property ("beatLength"));
+
+ Moment end_mom;
+ if (unsmob_moment (one))
+ end_mom = *unsmob_moment (one);
/*
second guess: property generic time exception
*/
- Scalar begin = get_property (time_str + "beamAutoBegin", 0);
- if (begin.length_i ())
- begin_mom = begin.to_rat ();
+ SCM begin = get_property ((time_str + "beamAutoBegin").ch_C());
+ if (unsmob_moment (begin))
+ begin_mom = * unsmob_moment (begin);
- Scalar end = get_property (time_str + "beamAutoEnd", 0);
- if (end.length_i ())
- end_mom = end.to_rat ();
+ SCM end = get_property ((time_str + "beamAutoEnd").ch_C());
+ if (unsmob_moment (end))
+ end_mom = * unsmob_moment (end);
/*
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 ();
+ SCM end_mult = get_property ((time_str + "beamAutoEnd" + type_str).ch_C());
+ if (unsmob_moment (end_mult))
+ end_mom = * unsmob_moment (end_mult);
+
+ SCM begin_mult = get_property ((time_str + "beamAutoBegin" + type_str).ch_C());
+ if (unsmob_moment (begin_mult))
+ begin_mom = * unsmob_moment (begin_mult);
}
/*
fourth guess [user override]: property plain generic
*/
- begin = get_property ("beamAutoBegin", 0);
- if (begin.length_i ())
- begin_mom = begin.to_rat ();
+ begin = get_property ("beamAutoBegin");
+ if (unsmob_moment (begin))
+ begin_mom = * unsmob_moment (begin);
+
+
- end = get_property ("beamAutoEnd", 0);
- if (end.length_i ())
- end_mom = end.to_rat ();
+ end = get_property ("beamAutoEnd");
+ if (unsmob_moment (end))
+ end_mom = * unsmob_moment (end);
/*
fifth guess [user override]: property plain, specific for duration type
*/
if (type_str.length_i ())
{
- Scalar end_mult = get_property (String ("beamAutoEnd") + type_str, 0);
- if (end_mult.length_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 ();
+ SCM end_mult = get_property ((String ("beamAutoEnd") + type_str).ch_C());
+ if (unsmob_moment (end_mult))
+ end_mom = * unsmob_moment (end_mult);
+
+ SCM begin_mult = get_property ((String ("beamAutoBegin") + type_str).ch_C());
+ if (unsmob_moment (begin_mult))
+ begin_mom = * unsmob_moment (begin_mult);
}
Rational r;
if (end_mom)
- r = time->whole_in_measure_.mod_rat (end_mom);
+ r = timer_l_->measure_position ().mod_rat (end_mom);
else
r = Moment (1);
/*
Allow already started autobeam to end
*/
- Scalar on = get_property ("beamAuto", 0);
- if (!on.to_bool ())
+ SCM on = get_property ("noAutoBeaming");
+ if (to_boolean (on))
return;
if (begin_mom)
- r = time->whole_in_measure_.mod_rat (begin_mom);
+ r = timer_l_->measure_position ().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_mom ().str () + "\n";
assert (!stem_l_arr_p_);
stem_l_arr_p_ = new Array<Stem*>;
assert (!grouping_p_);
- grouping_p_ = new Rhythmic_grouping;
+ grouping_p_ = new Beaming_info_list;
+ beam_start_moment_ = now_mom ();
+ beam_start_location_ = timer_l_->measure_position ();
}
Beam*
Auto_beam_engraver::create_beam_p ()
{
- Beam* beam_p = new Beam;
+ Beam* beam_p = new Beam (get_property ("basicBeamProperties"));
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 */
- Scalar prop = get_property ("beamslopedamping", 0);
- if (prop.isnum_b ())
- 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;
-
+ {
+ /*
+ watch out for stem tremolos and abbreviation beams
+ */
+ if ((*stem_l_arr_p_)[i]->beam_l ())
+ {
+ return 0;
+ }
+ beam_p->add_stem ((*stem_l_arr_p_)[i]);
+ }
+
announce_element (Score_element_info (beam_p, 0));
+
return beam_p;
}
else
{
finished_beam_p_ = create_beam_p ();
- finished_grouping_p_ = grouping_p_;
+ if (finished_beam_p_)
+ finished_grouping_p_ = grouping_p_;
delete stem_l_arr_p_;
stem_l_arr_p_ = 0;
grouping_p_ = 0;
- shortest_mom_ = 1;
+ 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_post_move_processing ()
{
+ /*
+ don't beam over skips
+ */
+ if (stem_l_arr_p_)
+ {
+ Moment now = now_mom ();
+ if (extend_mom_ < now)
+ {
+ end_beam ();
+ }
+ }
}
void
void
Auto_beam_engraver::do_removal_processing ()
{
+ /* finished beams may be typeset */
typeset_beam ();
- if (stem_l_arr_p_ && stem_l_arr_p_->size ())
- {
- junk_beam ();
- }
+ /* but unfinished may need another announce/acknowledge pass */
+ if (stem_l_arr_p_)
+ junk_beam ();
+}
+
+bool
+Auto_beam_engraver::same_grace_state_b (Score_element* e)
+{
+ bool gr = e->get_elt_property ("grace") == SCM_BOOL_T;
+ SCM wg =get_property ("weAreGraceContext");
+ return (to_boolean (wg)) == gr;
}
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 (stem_l_arr_p_)
+ if (Beam *b = dynamic_cast<Beam *> (info.elem_l_))
{
- junk_beam ();
+ end_beam ();
}
- }
- if (Bar *b = dynamic_cast<Bar *> (info.elem_l_))
- {
- if (stem_l_arr_p_)
+ else if (Bar *b = dynamic_cast<Bar *> (info.elem_l_))
{
- junk_beam ();
+ end_beam ();
+ }
+ else if (Rest* rest_l = dynamic_cast<Rest *> (info.elem_l_))
+ {
+ end_beam ();
}
}
-
- if (stem_l_arr_p_)
+
+ if (Stem* stem_l = dynamic_cast<Stem *> (info.elem_l_))
{
Rhythmic_req *rhythmic_req = dynamic_cast <Rhythmic_req *> (info.req_l_);
if (!rhythmic_req)
- return;
-
- if (dynamic_cast<Rest *> (info.elem_l_))
{
- end_beam ();
+ programming_error ("Stem must have rhythmic structure");
return;
}
-
- Stem* stem_l = dynamic_cast<Stem *> (info.elem_l_);
- if (!stem_l)
- return;
-
- if (stem_l->beam_l_)
+
+ /*
+ Don't (start) auto-beam over empty stems; skips or rests
+ */
+ if (!stem_l->heads_i ())
{
- junk_beam ();
+ if (stem_l_arr_p_)
+ end_beam ();
return;
}
-
- /*
- 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)
+ if (stem_l->beam_l ())
{
- end_beam ();
- return;
+ if (stem_l_arr_p_)
+ junk_beam ();
+ return ;
}
-
- Moment start = get_staff_info().time_C_->whole_in_measure_;
- if (!grouping_p_->child_fit_b (start))
+
+ int durlog =rhythmic_req->duration_.durlog_i_;
+ if (durlog <= 2)
{
- end_beam ();
+ if (stem_l_arr_p_)
+ end_beam ();
+ return;
}
- 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 shortest duration would change
- reconsider ending/starting beam first.
- */
- Moment mom = rhythmic_req->duration_.length_mom ();
- if (mom < shortest_mom_)
+ if (stem_l_arr_p_->size ())
{
shortest_mom_ = mom;
- consider_end_and_begin ();
+ consider_end_and_begin (shortest_mom_);
+ if (!stem_l_arr_p_)
+ return;
}
- grouping_p_->add_child (start, rhythmic_req->length_mom ());
-
- //stem_l->flag_i_ = rhythmic_req->duration_.durlog_i_;
-
- stem_l_arr_p_->push (stem_l);
- Moment now = now_mom ();
- last_add_mom_ = now;
- extend_mom_ = extend_mom_ >? now + rhythmic_req->length_mom ();
+ shortest_mom_ = mom;
}
+ Moment now = now_mom ();
+
+ 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 ();
}
}
Auto_beam_engraver::junk_beam ()
{
assert (stem_l_arr_p_);
- /* for (int i = 0; i < stem_l_arr_p_->size (); i++)
- (*stem_l_arr_p_)[i]->flag_i_ = 0;*/
delete stem_l_arr_p_;
stem_l_arr_p_ = 0;
delete grouping_p_;
grouping_p_ = 0;
- shortest_mom_ = 1;
+ shortest_mom_ = Moment (1, 8);
}
void
}
}
}
+
projects / lilypond.git / blobdiff