X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fchord-name-engraver.cc;h=d0ced5a395f836e99fe57970185e26793b52612f;hb=e90f0536f9be39ada0bef0aeb0d275dec3b2fb5b;hp=005f7ff30f33450140e8fcab6129b9913279de49;hpb=fb2cb5e32d671334270e101a7a286ee80d5ade00;p=lilypond.git diff --git a/lily/chord-name-engraver.cc b/lily/chord-name-engraver.cc index 005f7ff30f..d0ced5a395 100644 --- a/lily/chord-name-engraver.cc +++ b/lily/chord-name-engraver.cc @@ -1,112 +1,193 @@ /* - chord-name-engraver.cc -- implement Chord_name_engraver + This file is part of LilyPond, the GNU music typesetter. - source file of the GNU LilyPond music typesetter + Copyright (C) 1998--2011 Jan Nieuwenhuizen - (c) 1998--2002 Jan Nieuwenhuizen + LilyPond is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + LilyPond is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with LilyPond. If not, see . */ -#include "engraver.hh" #include "chord-name.hh" -#include "chord.hh" -#include "musical-request.hh" -#include "paper-def.hh" -#include "font-interface.hh" -#include "paper-def.hh" -#include "main.hh" +#include "context.hh" #include "dimensions.hh" +#include "engraver.hh" +#include "font-interface.hh" #include "item.hh" +#include "output-def.hh" #include "pitch.hh" #include "protected-scm.hh" +#include "stream-event.hh" +#include "text-interface.hh" +#include "warn.hh" -class Chord_name_engraver : public Engraver +#include "translator.icc" + +class Chord_name_engraver : public Engraver { - TRANSLATOR_DECLARATIONS( Chord_name_engraver); + TRANSLATOR_DECLARATIONS (Chord_name_engraver); protected: - virtual void stop_translation_timestep (); - virtual void process_music (); - virtual bool try_music (Music *); - + void stop_translation_timestep (); + void process_music (); + virtual void finalize (); + virtual void derived_mark () const; + DECLARE_TRANSLATOR_LISTENER (note); + DECLARE_TRANSLATOR_LISTENER (rest); private: - void add_note (Note_req *); - - Item* chord_name_p_; - - Protected_scm chord_; - Protected_scm last_chord_; + Item *chord_name_; + vector notes_; + + SCM last_chord_; + Stream_event *rest_event_; }; - - -Chord_name_engraver::Chord_name_engraver () +void +Chord_name_engraver::finalize () { - chord_name_p_ = 0; - chord_ = gh_cons (SCM_EOL, gh_cons (SCM_EOL, SCM_EOL)); - last_chord_ = chord_; } void -Chord_name_engraver::add_note (Note_req* n) +Chord_name_engraver::derived_mark () const { - SCM pitches = ly_car (chord_); - SCM modifiers = ly_cdr (chord_); - SCM inversion = modifiers == SCM_EOL ? SCM_EOL : ly_car (modifiers); - SCM bass = modifiers == SCM_EOL ? SCM_EOL : ly_cdr (modifiers); - - if (n->get_mus_property ("inversion") == SCM_BOOL_T) - inversion = n->get_mus_property ("pitch"); - else if (n->get_mus_property ("bass") == SCM_BOOL_T) - bass = n->get_mus_property ("pitch"); - else - pitches = scm_sort_list (gh_cons (n->get_mus_property ("pitch"), pitches), - Pitch::less_p_proc); - chord_ = gh_cons (pitches, gh_cons (inversion, bass)); + scm_gc_mark (last_chord_); } -bool -Chord_name_engraver::try_music (Music* m) +Chord_name_engraver::Chord_name_engraver () { - if (Note_req* n = dynamic_cast (m)) - { - add_note (n); - return true; - } - return false; + chord_name_ = 0; + last_chord_ = SCM_EOL; + rest_event_ = 0; } void Chord_name_engraver::process_music () -{ - if (ly_car (chord_) != SCM_EOL) +{ + SCM markup; + SCM bass = SCM_EOL; + SCM inversion = SCM_EOL; + SCM pitches = SCM_EOL; + + if (rest_event_) { - chord_name_p_ = new Item (get_property ("ChordName")); - chord_name_p_->set_grob_property ("chord", chord_); - announce_grob(chord_name_p_, SCM_EOL); - SCM s = get_property ("chordChanges"); - if (to_boolean (s) && ly_car (last_chord_) != SCM_EOL - && gh_equal_p (chord_, last_chord_)) - chord_name_p_->set_grob_property ("begin-of-line-visible", SCM_BOOL_T); + SCM no_chord_markup = get_property ("noChordSymbol"); + if (!Text_interface::is_markup (no_chord_markup)) + return; + markup = no_chord_markup; + } + else + { + if (!notes_.size ()) + return; + + Stream_event *inversion_event = 0; + for (vsize i = 0; i < notes_.size (); i++) + { + Stream_event *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_event) + { + 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"); + } + + pitches = scm_sort_list (pitches, Pitch::less_p_proc); + + SCM name_proc = get_property ("chordNameFunction"); + markup = scm_call_4 (name_proc, pitches, bass, inversion, + context ()->self_scm ()); } + /* + Ugh. + */ + SCM chord_as_scm = scm_cons (pitches, scm_cons (bass, inversion)); + + chord_name_ = make_item ("ChordName", + rest_event_ ? rest_event_->self_scm () : notes_[0]->self_scm ()); + chord_name_->set_property ("text", markup); + + SCM chord_changes = get_property("chordChanges"); + if (to_boolean (chord_changes) && 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; } +IMPLEMENT_TRANSLATOR_LISTENER (Chord_name_engraver, note); void -Chord_name_engraver::stop_translation_timestep () +Chord_name_engraver::listen_note (Stream_event *ev) { - if (chord_name_p_) - { - typeset_grob (chord_name_p_); - } - chord_name_p_ = 0; + notes_.push_back (ev); +} - if (ly_car (chord_) != SCM_EOL) - last_chord_ = chord_; - chord_ = gh_cons (SCM_EOL, gh_cons (SCM_EOL, SCM_EOL)); +IMPLEMENT_TRANSLATOR_LISTENER (Chord_name_engraver, rest); +void +Chord_name_engraver::listen_rest (Stream_event *ev) +{ + ASSIGN_EVENT_ONCE(rest_event_, ev); +} + +void +Chord_name_engraver::stop_translation_timestep () +{ + chord_name_ = 0; + notes_.clear (); + rest_event_ = 0; } -ENTER_DESCRIPTION(Chord_name_engraver, -/* descr */ "Catch Note_req's, Tonic_reqs, Inversion_reqs, Bass_req -and generate the appropriate chordname.", -/* creats*/ "ChordName", -/* acks */ "", -/* reads */ "chordChanges", -/* write */ ""); +/* + The READs description is not strictly accurate: + which properties are read depend on the chord naming function active. +*/ +ADD_TRANSLATOR (Chord_name_engraver, + /* doc */ + "Catch note and rest events and generate the appropriate chordname.", + + /* create */ + "ChordName ", + + /* read */ + "chordChanges " + "chordNameExceptions " + "chordNameFunction " + "chordNoteNamer " + "chordRootNamer " + "chordNameExceptions " + "majorSevenSymbol " + "noChordSymbol ", + + /* write */ + "" + );