X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fbeam-engraver.cc;h=cad443299c789b79f8402e937238e6a28d80c20c;hb=6f664e0e318a1651f6fe9317a842bf9c7f476f08;hp=917d2db3c1193b258892b7d42d4976f85ee153be;hpb=02c656d3b0cb895cc81b428d699d960746800e45;p=lilypond.git diff --git a/lily/beam-engraver.cc b/lily/beam-engraver.cc index 917d2db3c1..cad443299c 100644 --- a/lily/beam-engraver.cc +++ b/lily/beam-engraver.cc @@ -3,34 +3,41 @@ source file of the GNU LilyPond music typesetter - (c) 1998--2005 Han-Wen Nienhuys + (c) 1998--2006 Han-Wen Nienhuys */ -#include "engraver.hh" #include "beam.hh" -#include "stem.hh" -#include "warn.hh" -#include "beaming.hh" -#include "score-engraver.hh" -#include "rest.hh" +#include "beaming-pattern.hh" +#include "context.hh" #include "drul-array.hh" +#include "duration.hh" +#include "engraver.hh" +#include "international.hh" #include "item.hh" +#include "rest.hh" #include "spanner.hh" -#include "context.hh" +#include "stream-event.hh" +#include "stem.hh" +#include "warn.hh" + +#include "translator.icc" class Beam_engraver : public Engraver { +public: + DECLARE_ACKNOWLEDGER (stem); + DECLARE_ACKNOWLEDGER (rest); protected: - Music *start_ev_; + Stream_event *start_ev_; Spanner *finished_beam_; Spanner *beam_; - Music *prev_start_ev_; + Stream_event *prev_start_ev_; - Music *now_stop_ev_; + Stream_event *now_stop_ev_; - Beaming_info_list *beam_info_; - Beaming_info_list *finished_beam_info_; + Beaming_pattern *beam_info_; + Beaming_pattern *finished_beam_info_; /// location within measure where beam started. Moment beam_start_location_; @@ -45,17 +52,16 @@ 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 (); + void process_music (); virtual bool valid_start_point (); virtual bool valid_end_point (); + DECLARE_TRANSLATOR_LISTENER (beam); public: TRANSLATOR_DECLARATIONS (Beam_engraver); }; @@ -89,28 +95,16 @@ Beam_engraver::Beam_engraver () prev_start_ev_ = 0; } -bool -Beam_engraver::try_music (Music *m) +IMPLEMENT_TRANSLATOR_LISTENER (Beam_engraver, beam); +void +Beam_engraver::listen_beam (Stream_event *ev) { - if (m->is_mus_type ("beam-event")) - { - 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; + Direction d = to_dir (ev->get_property ("span-direction")); - if (d == START) - { - start_ev_ = m; - } - else if (d == STOP) - { - now_stop_ev_ = m; - } - return true; - } - return false; + if (d == START && valid_start_point ()) + ASSIGN_EVENT_ONCE (start_ev_, ev); + else if (d == STOP && valid_end_point ()) + ASSIGN_EVENT_ONCE (now_stop_ev_, ev); } void @@ -125,9 +119,7 @@ void Beam_engraver::process_music () { if (beam_ && !to_boolean (get_property ("allowBeamBreak"))) - { - get_score_engraver ()->forbid_breaks (); - } + context ()->get_score_context ()->set_property ("forbidBreak", SCM_BOOL_T); if (start_ev_) { @@ -145,8 +137,7 @@ Beam_engraver::process_music () beam_start_location_ = mp; beam_start_mom_ = now_mom (); - beam_info_ = new Beaming_info_list; - + beam_info_ = new Beaming_pattern; /* urg, must copy to Auto_beam_engraver too */ } } @@ -156,7 +147,10 @@ Beam_engraver::typeset_beam () { if (finished_beam_) { - finished_beam_info_->beamify (beat_length_, subdivide_beams_); + if (!finished_beam_->get_bound (RIGHT)) + finished_beam_->set_bound (RIGHT, finished_beam_->get_bound (LEFT)); + + finished_beam_info_->beamify (context ()); Beam::set_beaming (finished_beam_, finished_beam_info_); delete finished_beam_info_; @@ -173,9 +167,6 @@ Beam_engraver::start_translation_timestep () if (beam_) { set_melisma (true); - - subdivide_beams_ = to_boolean (get_property ("subdivideBeams")); - beat_length_ = robust_scm2moment (get_property ("beatLength"), Moment (1, 4)); } } @@ -213,74 +204,88 @@ Beam_engraver::finalize () } void -Beam_engraver::acknowledge_grob (Grob_info info) +Beam_engraver::acknowledge_rest (Grob_info info) { - if (beam_) + if (beam_ + && !scm_is_number (info.grob ()->get_property_data ("staff-position"))) { - 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_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_int2num (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); - } + chain_offset_callback (info.grob(), + Beam::rest_collision_callback_proc, Y_AXIS); } } + + +void +Beam_engraver::acknowledge_stem (Grob_info info) +{ + if (!beam_) + return; + + Moment now = now_mom (); + if (!valid_start_point ()) + return; + + Item *stem = dynamic_cast (info.grob ()); + if (Stem::get_beam (stem)) + return; + + + + Stream_event *ev = info.ultimate_event_cause (); + if (!ev->in_event_class ("rhythmic-event")) + { + info.grob ()->warning (_ ("stem must have Rhythmic structure")); + return; + } + + last_stem_added_at_ = now; + int durlog = unsmob_duration (ev->get_property ("duration"))->duration_log (); + if (durlog <= 2) + { + ev->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); +} + +ADD_ACKNOWLEDGER (Beam_engraver, stem); +ADD_ACKNOWLEDGER (Beam_engraver, rest); + ADD_TRANSLATOR (Beam_engraver, - /* descr */ "Handles Beam events by engraving Beams. If omitted, then notes will be " + /* doc */ + + "Handles Beam events by engraving Beams. If omitted, then notes will be " "printed with flags instead of beams.", - /* creats*/ "Beam", - /* accepts */ "beam-event", - /* acks */ "stem-interface rest-interface", - /* reads */ "beamMelismaBusy beatLength subdivideBeams", - /* write */ ""); + + /* create */ "Beam", + + /* read */ + "beamMelismaBusy " + "beatLength " + "subdivideBeams " + , + /* write */ + "forbidBreak"); class Grace_beam_engraver : public Beam_engraver { public: TRANSLATOR_DECLARATIONS (Grace_beam_engraver); + DECLARE_TRANSLATOR_LISTENER (beam); + protected: virtual bool valid_start_point (); virtual bool valid_end_point (); @@ -304,13 +309,39 @@ Grace_beam_engraver::valid_end_point () return beam_ && valid_start_point (); } +/* + Ugh, C&P code. + */ +IMPLEMENT_TRANSLATOR_LISTENER (Grace_beam_engraver, beam); +void +Grace_beam_engraver::listen_beam (Stream_event *ev) +{ + Direction d = to_dir (ev->get_property ("span-direction")); + + if (d == START && valid_start_point ()) + start_ev_ = ev; + else if (d == STOP && valid_end_point ()) + now_stop_ev_ = ev; +} + + +ADD_ACKNOWLEDGER (Grace_beam_engraver, stem); +ADD_ACKNOWLEDGER (Grace_beam_engraver, rest); + ADD_TRANSLATOR (Grace_beam_engraver, - /* descr */ "Handles Beam events by engraving Beams. If omitted, then notes will " + + /* 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. ", - /* creats*/ "Beam", - /* accepts */ "beam-event", - /* acks */ "stem-interface rest-interface", - /* reads */ "beamMelismaBusy beatLength allowBeamBreak subdivideBeams", + + /* create */ "Beam", + /* read */ + "beamMelismaBusy " + "beatLength " + "allowBeamBreak " + "subdivideBeams " + , /* write */ "");