X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fbeam-engraver.cc;h=9b4e01a139bd202097f35421990258f6bd14274f;hb=9106e3bd374198c5457c35181ae1d66b3ec95236;hp=599bced280e3f7c84ac28c886aef4a58228933c5;hpb=243db47a88df9240a66bde37356b43aaeb41260d;p=lilypond.git diff --git a/lily/beam-engraver.cc b/lily/beam-engraver.cc index 599bced280..9b4e01a139 100644 --- a/lily/beam-engraver.cc +++ b/lily/beam-engraver.cc @@ -1,14 +1,12 @@ -/* - beam-engraver.cc -- implement Beam_engraver - +/* + beam-engraver.cc -- implement Beam_engraver + source file of the GNU LilyPond music typesetter - - (c) 1998--2003 Han-Wen Nienhuys - - */ -#include "engraver-group-engraver.hh" + + (c) 1998--2005 Han-Wen Nienhuys +*/ + #include "engraver.hh" -#include "event.hh" #include "beam.hh" #include "stem.hh" #include "warn.hh" @@ -18,20 +16,27 @@ #include "drul-array.hh" #include "item.hh" #include "spanner.hh" +#include "context.hh" +#include "duration.hh" + +#include "translator.icc" class Beam_engraver : public Engraver { -protected: - Drul_array evs_drul_; - +public: + DECLARE_ACKNOWLEDGER (stem); + DECLARE_ACKNOWLEDGER (rest); +protected: + Music *start_ev_; + Spanner *finished_beam_; Spanner *beam_; - Music * prev_start_ev_; + Music *prev_start_ev_; - Music * now_stop_ev_; - - Beaming_info_list * beam_info_; - Beaming_info_list * finished_beam_info_; + Music *now_stop_ev_; + + Beaming_info_list *beam_info_; + Beaming_info_list *finished_beam_info_; /// location within measure where beam started. Moment beam_start_location_; @@ -46,28 +51,26 @@ protected: void set_melisma (bool); Moment last_stem_added_at_; - virtual void stop_translation_timestep (); - virtual void start_translation_timestep (); + void stop_translation_timestep (); + void start_translation_timestep (); virtual void finalize (); - virtual void acknowledge_grob (Grob_info); - virtual bool try_music (Music*); - virtual void process_music (); + virtual bool try_music (Music *); + void process_music (); - virtual bool valid_start_point(); + virtual bool valid_start_point (); virtual bool valid_end_point (); - + public: - TRANSLATOR_DECLARATIONS( Beam_engraver ); + TRANSLATOR_DECLARATIONS (Beam_engraver); }; - /* Hmm. this isn't necessary, since grace beams and normal beams are always nested. - */ +*/ bool -Beam_engraver::valid_start_point() +Beam_engraver::valid_start_point () { Moment n = now_mom (); @@ -75,7 +78,7 @@ Beam_engraver::valid_start_point() } bool -Beam_engraver::valid_end_point() +Beam_engraver::valid_end_point () { return valid_start_point (); } @@ -83,41 +86,29 @@ Beam_engraver::valid_end_point() Beam_engraver::Beam_engraver () { beam_ = 0; - finished_beam_ =0; - finished_beam_info_=0; - beam_info_ =0; + finished_beam_ = 0; + finished_beam_info_ = 0; + beam_info_ = 0; now_stop_ev_ = 0; - evs_drul_[LEFT] = evs_drul_[RIGHT] =0; - prev_start_ev_ =0; + start_ev_ = 0; + prev_start_ev_ = 0; } bool Beam_engraver::try_music (Music *m) { - if (m->is_mus_type ("abort-event")) - { - evs_drul_[START] = 0; - evs_drul_[STOP] = 0; - if (beam_) - beam_->suicide (); - beam_ = 0; - } - else if (m->is_mus_type ("beam-event")) + if (m->is_mus_type ("beam-event")) { - Direction d = to_dir (m->get_mus_property ("span-direction")); + Direction d = to_dir (m->get_property ("span-direction")); if (d == START && !valid_start_point ()) return false; if (d == STOP && !valid_end_point ()) return false; if (d == START) - { - evs_drul_[d] = m; - } - else if (d==STOP) - { - now_stop_ev_ = m; - } + start_ev_ = m; + else if (d == STOP) + now_stop_ev_ = m; return true; } return false; @@ -128,64 +119,47 @@ Beam_engraver::set_melisma (bool ml) { SCM b = get_property ("autoBeaming"); if (!to_boolean (b)) - daddy_trans_->set_property ("beamMelismaBusy", ml ? SCM_BOOL_T :SCM_BOOL_F); + context ()->set_property ("beamMelismaBusy", ml ? SCM_BOOL_T : SCM_BOOL_F); } void Beam_engraver::process_music () { - if (evs_drul_[STOP]) - { - prev_start_ev_ =0; - finished_beam_ = beam_; - finished_beam_info_ = beam_info_; - - beam_info_ =0; - beam_ = 0; - } - if (beam_ && !to_boolean (get_property ("allowBeamBreak"))) - { - top_engraver ()->forbid_breaks (); - } + get_score_engraver ()->forbid_breaks (); - if (evs_drul_[START]) + if (start_ev_) { if (beam_) { - evs_drul_[START]->origin ()->warning (_ ("already have a beam")); + start_ev_->origin ()->warning (_ ("already have a beam")); return; } set_melisma (true); - prev_start_ev_ = evs_drul_[START]; - beam_ = make_spanner ("Beam"); - SCM smp = get_property ("measurePosition"); - Moment mp = (unsmob_moment (smp)) ? *unsmob_moment (smp) : Moment (0); + prev_start_ev_ = start_ev_; + beam_ = make_spanner ("Beam", start_ev_->self_scm ()); + Moment mp (robust_scm2moment (get_property ("measurePosition"), Moment (0))); beam_start_location_ = mp; beam_start_mom_ = now_mom (); - + beam_info_ = new Beaming_info_list; - + /* urg, must copy to Auto_beam_engraver too */ - - announce_grob(beam_, evs_drul_[START]->self_scm()); } - } - void Beam_engraver::typeset_beam () { if (finished_beam_) { - finished_beam_info_->beamify(beat_length_, subdivide_beams_); + finished_beam_info_->beamify (beat_length_, subdivide_beams_); Beam::set_beaming (finished_beam_, finished_beam_info_); - typeset_grob (finished_beam_); + delete finished_beam_info_; - finished_beam_info_ =0; + finished_beam_info_ = 0; finished_beam_ = 0; } } @@ -193,15 +167,14 @@ Beam_engraver::typeset_beam () void Beam_engraver::start_translation_timestep () { - evs_drul_ [START] =0; - evs_drul_[STOP] = 0; - + start_ev_ = 0; + if (beam_) { set_melisma (true); - - subdivide_beams_ = to_boolean(get_property("subdivideBeams")); - beat_length_ = *unsmob_moment (get_property ("beatLength")); + + subdivide_beams_ = to_boolean (get_property ("subdivideBeams")); + beat_length_ = robust_scm2moment (get_property ("beatLength"), Moment (1, 4)); } } @@ -209,7 +182,7 @@ void Beam_engraver::stop_translation_timestep () { typeset_beam (); - if (now_stop_ev_ ) + if (now_stop_ev_) { finished_beam_ = beam_; finished_beam_info_ = beam_info_; @@ -217,8 +190,8 @@ Beam_engraver::stop_translation_timestep () now_stop_ev_ = 0; beam_ = 0; beam_info_ = 0; - typeset_beam(); - set_melisma (false); + typeset_beam (); + set_melisma (false); } } @@ -239,114 +212,110 @@ Beam_engraver::finalize () } void -Beam_engraver::acknowledge_grob (Grob_info info) +Beam_engraver::acknowledge_rest (Grob_info info) { if (beam_) { - if (Rest::has_interface (info.grob_)) - { - info.grob_->add_offset_callback (Beam::rest_collision_callback_proc, Y_AXIS); - } - else if (Stem::has_interface (info.grob_)) - { - Moment now = now_mom(); - - if (!valid_start_point ()) - return ; - - Item *stem = dynamic_cast (info.grob_); - if (Stem::get_beam (stem)) - return; - - Music* m = info.music_cause(); - if (!m->is_mus_type ("rhythmic-event")) - { - String s = _ ("stem must have Rhythmic structure"); - if (info.music_cause ()) - info.music_cause ()->origin ()->warning (s); - else - ::warning (s); - - return; - } - - - last_stem_added_at_ = now; - int durlog = unsmob_duration (m->get_mus_property ("duration"))-> duration_log (); - if (durlog <= 2) - { - m->origin ()->warning (_ ("stem doesn't fit in beam")); - prev_start_ev_->origin ()->warning (_ ("beam was started here")); - /* - don't return, since - - [r4 c8] can just as well be modern notation. - */ - } - - stem->set_grob_property ("duration-log", - scm_int2num (durlog)); - Moment stem_location = now - beam_start_mom_ + beam_start_location_; - beam_info_->add_stem (stem_location, - (durlog- 2) >? 0); - Beam::add_stem (beam_, stem); - } + chain_offset_callback (info.grob(), + Beam::rest_collision_callback_proc, Y_AXIS); } } +void +Beam_engraver::acknowledge_stem (Grob_info info) +{ + if (beam_) + { + Moment now = now_mom (); + + if (!valid_start_point ()) + return; + + Item *stem = dynamic_cast (info.grob ()); + if (Stem::get_beam (stem)) + return; + + Music *m = info.music_cause (); + if (!m->is_mus_type ("rhythmic-event")) + { + String s = _ ("stem must have Rhythmic structure"); + if (info.music_cause ()) + info.music_cause ()->origin ()->warning (s); + else + ::warning (s); + + return; + } + last_stem_added_at_ = now; + int durlog = unsmob_duration (m->get_property ("duration"))->duration_log (); + if (durlog <= 2) + { + m->origin ()->warning (_ ("stem doesn't fit in beam")); + prev_start_ev_->origin ()->warning (_ ("beam was started here")); + /* + don't return, since + [r4 c8] can just as well be modern notation. + */ + } + stem->set_property ("duration-log", + scm_from_int (durlog)); + Moment stem_location = now - beam_start_mom_ + beam_start_location_; + beam_info_->add_stem (stem_location, + max (durlog- 2, 0)); + Beam::add_stem (beam_, stem); + } +} -ENTER_DESCRIPTION(Beam_engraver, -/* descr */ "Handles Beam events by engraving Beams. If omitted, then notes will be " -"printed with flags instead of beams.", -/* creats*/ "Beam", -/* accepts */ "beam-event abort-event", -/* acks */ "stem-interface rest-interface", -/* reads */ "beamMelismaBusy beatLength subdivideBeams", -/* write */ ""); +ADD_ACKNOWLEDGER (Beam_engraver, stem); +ADD_ACKNOWLEDGER (Beam_engraver, rest); +ADD_TRANSLATOR (Beam_engraver, + /* doc */ "Handles Beam events by engraving Beams. If omitted, then notes will be " + "printed with flags instead of beams.", + /* create */ "Beam", + /* accept */ "beam-event", + /* read */ "beamMelismaBusy beatLength subdivideBeams", + /* write */ ""); class Grace_beam_engraver : public Beam_engraver { public: - TRANSLATOR_DECLARATIONS(Grace_beam_engraver); + TRANSLATOR_DECLARATIONS (Grace_beam_engraver); protected: - virtual bool valid_start_point(); + virtual bool valid_start_point (); virtual bool valid_end_point (); }; -Grace_beam_engraver::Grace_beam_engraver() +Grace_beam_engraver::Grace_beam_engraver () { } bool -Grace_beam_engraver::valid_start_point() +Grace_beam_engraver::valid_start_point () { Moment n = now_mom (); return n.grace_part_ != Rational (0); } - bool Grace_beam_engraver::valid_end_point () { return beam_ && valid_start_point (); } - - -ENTER_DESCRIPTION(Grace_beam_engraver, -/* descr */ "Handles Beam events by engraving Beams. If omitted, then notes will " -"be printed with flags instead of beams. Only engraves beams when we " -" are at grace points in time. " -, -/* creats*/ "Beam", -/* accepts */ "beam-event abort-event", -/* acks */ "stem-interface rest-interface", -/* reads */ "beamMelismaBusy beatLength allowBeamBreak subdivideBeams", -/* write */ ""); +ADD_ACKNOWLEDGER (Grace_beam_engraver, stem); +ADD_ACKNOWLEDGER (Grace_beam_engraver, rest); +ADD_TRANSLATOR (Grace_beam_engraver, + /* doc */ "Handles Beam events by engraving Beams. If omitted, then notes will " + "be printed with flags instead of beams. Only engraves beams when we " + " are at grace points in time. ", + /* create */ "Beam", + /* accept */ "beam-event", + /* read */ "beamMelismaBusy beatLength allowBeamBreak subdivideBeams", + /* write */ "");