X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fchord-name-engraver.cc;h=363ba3e22e9a215f10aa6a13dbfeffdd987d30af;hb=b6a3535923f893b4c593203c3421361ae02eba7c;hp=3e82a773508c26e4ab030dd7aa78f0a8b2b82f6e;hpb=a8651b61fa25aee299bbc846d180a942568d6075;p=lilypond.git diff --git a/lily/chord-name-engraver.cc b/lily/chord-name-engraver.cc index 3e82a77350..363ba3e22e 100644 --- a/lily/chord-name-engraver.cc +++ b/lily/chord-name-engraver.cc @@ -3,130 +3,160 @@ source file of the GNU LilyPond music typesetter - (c) 1998--2000 Jan Nieuwenhuizen + (c) 1998--2005 Jan Nieuwenhuizen */ #include "engraver.hh" #include "chord-name.hh" -#include "chord.hh" -#include "musical-request.hh" -#include "paper-def.hh" -#include "lookup.hh" -#include "paper-def.hh" -#include "main.hh" +#include "output-def.hh" +#include "font-interface.hh" +#include "output-def.hh" #include "dimensions.hh" #include "item.hh" -#include "musical-pitch.hh" +#include "protected-scm.hh" +#include "context.hh" +#include "warn.hh" +#include "pitch.hh" -class Chord_name_engraver : public Engraver +class Chord_name_engraver : public Engraver { -public: - Chord_name_engraver (); - VIRTUAL_COPY_CONS (Translator); - + TRANSLATOR_DECLARATIONS (Chord_name_engraver); protected: - virtual void do_pre_move_processing (); - virtual void acknowledge_element (Score_element_info i); - virtual void do_process_music (); - virtual bool do_try_music (Music* m); - + void stop_translation_timestep (); + void process_music (); + virtual bool try_music (Music *); + virtual void finalize (); + virtual void derived_mark () const; private: - Array pitch_arr_; - Item* chord_name_p_; - Tonic_req* tonic_req_; - Inversion_req* inversion_req_; - Bass_req* bass_req_; + void add_note (Music *); + + Item *chord_name_; + Link_array notes_; + + SCM last_chord_; }; -ADD_THIS_TRANSLATOR (Chord_name_engraver); +void +Chord_name_engraver::finalize () +{ +} + +void +Chord_name_engraver::derived_mark () const +{ + scm_gc_mark (last_chord_); +} Chord_name_engraver::Chord_name_engraver () { - chord_name_p_ = 0; - tonic_req_ = 0; - inversion_req_ = 0; - bass_req_ = 0; + chord_name_ = 0; + last_chord_ = SCM_EOL; } void -Chord_name_engraver::acknowledge_element (Score_element_info i) +Chord_name_engraver::add_note (Music *n) { - if (Note_req* n = dynamic_cast (i.req_l_)) - pitch_arr_.push (n->pitch_); + notes_.push (n); } -bool -Chord_name_engraver::do_try_music (Music* m) +void +Chord_name_engraver::process_music () { - if (Note_req* n = dynamic_cast (m)) - { - pitch_arr_.push (n->pitch_); - return true; - } - if (Tonic_req* t = dynamic_cast (m)) + if (!notes_.size ()) + return; + + SCM bass = SCM_EOL; + SCM inversion = SCM_EOL; + SCM pitches = SCM_EOL; + + Music *inversion_event = 0; + for (int i = 0; i < notes_.size (); i++) { - tonic_req_ = t; - return true; + Music *n = notes_[i]; + SCM p = n->get_property ("pitch"); + if (!unsmob_pitch (p)) + continue; + + if (n->get_property ("inversion") == SCM_BOOL_T) + { + inversion_event = n; + inversion = p; + } + else if (n->get_property ("bass") == SCM_BOOL_T) + bass = p; + else + pitches = scm_cons (p, pitches); } - if (Inversion_req* i = dynamic_cast (m)) + + if (inversion_event) { - inversion_req_ = i; - return true; + SCM oct = inversion_event->get_property ("octavation"); + if (scm_is_number (oct)) + { + Pitch *p = unsmob_pitch (inversion_event->get_property ("pitch")); + int octavation = scm_to_int (oct); + Pitch orig = p->transposed (Pitch (-octavation, 0, 0)); + + pitches = scm_cons (orig.smobbed_copy (), pitches); + } + else + programming_error ("inversion does not have original pitch"); } - if (Bass_req* b = dynamic_cast (m)) - { - bass_req_ = b; - return true; - } - return false; -} - -void -Chord_name_engraver::do_process_music () -{ - if (chord_name_p_) - return; - if (!pitch_arr_.size ()) - return; - bool find_inversion_b = false; - SCM chord_inversion = get_property ("chordInversion"); - if (gh_boolean_p (chord_inversion)) - find_inversion_b = gh_scm2bool (chord_inversion); + pitches = scm_sort_list (pitches, Pitch::less_p_proc); - chord_name_p_ = new Item (get_property ("basicChordNameProperties")); - Chord chord = to_chord (pitch_arr_, tonic_req_, inversion_req_, bass_req_, - find_inversion_b); + SCM name_proc = get_property ("chordNameFunction"); + SCM markup = scm_call_4 (name_proc, pitches, bass, inversion, + context ()->self_scm ()); /* - Hmm, why not represent complete chord as list? - ((tonic third fifth) (inversion bass)) + Ugh. */ - SCM plist = SCM_EOL; - for (int i= chord.pitch_arr_.size (); i--; ) - plist = gh_cons (chord.pitch_arr_[i].to_scm (), plist); - - chord_name_p_->set_elt_property ("pitches", plist); - if (chord.inversion_b_) - chord_name_p_->set_elt_property ("inversion", - chord.inversion_pitch_.to_scm ()); - if (chord.bass_b_) - chord_name_p_->set_elt_property ("bass", chord.bass_pitch_.to_scm ()); - - announce_element (Score_element_info (chord_name_p_, 0)); + SCM chord_as_scm = scm_cons (pitches, scm_cons (bass, inversion)); + + chord_name_ = make_item ("ChordName", notes_[0]->self_scm ()); + chord_name_->set_property ("text", markup); + + SCM s = get_property ("chordChanges"); + if (to_boolean (s) && scm_is_pair (last_chord_) + && ly_is_equal (chord_as_scm, last_chord_)) + chord_name_->set_property ("begin-of-line-visible", SCM_BOOL_T); + + last_chord_ = chord_as_scm; } -void -Chord_name_engraver::do_pre_move_processing () +bool +Chord_name_engraver::try_music (Music *m) { - if (chord_name_p_) + /* + hmm. Should check? + */ + if (m->is_mus_type ("note-event")) { - typeset_element (chord_name_p_); + add_note (m); + return true; } - pitch_arr_.clear (); - chord_name_p_ = 0; - tonic_req_ = 0; - inversion_req_ = 0; - bass_req_ = 0; + return false; } +void +Chord_name_engraver::stop_translation_timestep () +{ + chord_name_ = 0; + notes_.clear (); +} + +/* + The READs description is not strictly accurate: + which properties are read depend on the chord naming function active. +*/ +#include "translator.icc" + +ADD_TRANSLATOR (Chord_name_engraver, + /* doc */ "Catch note-events " + "and generate the appropriate chordname.", + /* create */ "ChordName", + /* accept */ "note-event", + /* read */ "chordChanges chordNameExceptions chordNameFunction " + "chordNoteNamer chordRootNamer chordNameExceptions majorSevenSymbol", + /* write */ "");