X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Flyric-engraver.cc;h=bad1203266f75b43842e6bdea358b6a734dc339f;hb=6b142830bc3a957d5c9996a7487a27f33eec58cc;hp=cc7356d8475e9ce5772c17ed0ad6d3fe71670912;hpb=a501f5946426488804ca2b03ab986f9c2b94ab99;p=lilypond.git diff --git a/lily/lyric-engraver.cc b/lily/lyric-engraver.cc index cc7356d847..bad1203266 100644 --- a/lily/lyric-engraver.cc +++ b/lily/lyric-engraver.cc @@ -1,56 +1,66 @@ /* - lyric-engraver.cc -- implement Lyric_engraver + This file is part of LilyPond, the GNU music typesetter. - source file of the GNU LilyPond music typesetter - - (c) 1997--2004 Han-Wen Nienhuys + Copyright (C) 1997--2015 Han-Wen Nienhuys 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 "context.hh" #include "engraver.hh" -#include "event.hh" #include "item.hh" -#include "context.hh" -#include "font-metric.hh" #include "note-head.hh" +#include "stream-event.hh" +#include "international.hh" + +#include "translator.icc" /** - Generate texts for lyric syllables. We only do one lyric at a time. + Generate texts for lyric syllables. We only do one lyric at a time. Multiple copies of this engraver should be used to do multiple voices. - */ -class Lyric_engraver : public Engraver +*/ +class Lyric_engraver : public Engraver { protected: - virtual void stop_translation_timestep (); - virtual bool try_music (Music *); - virtual void process_music (); - + void stop_translation_timestep (); + void process_music (); + void listen_lyric (Stream_event *); + public: TRANSLATOR_DECLARATIONS (Lyric_engraver); + private: - Music * event_; - Item* text_; + Stream_event *event_; + Item *text_; + Item *last_text_; - Context* get_voice_context (); + Context *get_voice_context (); }; -Lyric_engraver::Lyric_engraver () +Lyric_engraver::Lyric_engraver (Context *c) + : Engraver (c) { - text_ =0; - event_ =0; + text_ = 0; + last_text_ = 0; + event_ = 0; } -bool -Lyric_engraver::try_music (Music*r) +void +Lyric_engraver::listen_lyric (Stream_event *ev) { - if (r->is_mus_type ("lyric-event")) - { - if (event_) - return false; - event_ =r; - return true; - } - return false; + ASSIGN_EVENT_ONCE (event_, ev); } void @@ -58,69 +68,103 @@ Lyric_engraver::process_music () { if (event_) { - text_= make_item ("LyricText"); - - text_->set_property ("text", event_->get_property ("text")); - announce_grob (text_, event_->self_scm ()); + SCM text = event_->get_property ("text"); + + if (ly_is_equal (text, scm_from_ascii_string (" "))) + { + if (last_text_) + last_text_->set_property ("self-alignment-X", + get_property ("lyricMelismaAlignment")); + } + else + text_ = make_item ("LyricText", event_->self_scm ()); } -} + Context *voice = get_voice_to_lyrics (context ()); + if (last_text_ + && voice + && to_boolean (voice->get_property ("melismaBusy")) + && !to_boolean (context ()->get_property ("ignoreMelismata"))) + last_text_->set_property ("self-alignment-X", + get_property ("lyricMelismaAlignment")); +} -Context* +Context * get_voice_to_lyrics (Context *lyrics) { + bool searchForVoice = to_boolean (lyrics->get_property ("searchForVoice")); + SCM avc = lyrics->get_property ("associatedVoiceContext"); - if (Context *c = unsmob_context (avc)) - return c; + if (Context *c = unsmob (avc)) + { + if (!c->is_removable ()) + return c; + } SCM voice_name = lyrics->get_property ("associatedVoice"); - String nm = lyrics->id_string_; + string nm = lyrics->id_string (); - if (is_string (voice_name)) + if (scm_is_string (voice_name)) nm = ly_scm2string (voice_name); + else if (nm == "" || !searchForVoice) + return 0; else { - int idx = nm.index_last ('-'); - if (idx >= 0) - nm = nm.left_string (idx); + ssize idx = nm.rfind ('-'); + if (idx != NPOS) + nm = nm.substr (0, idx); } - Context *parent = lyrics; - Context *voice = 0; - while (parent && !voice) - { - voice = find_context_below (parent, ly_symbol2scm ("Voice"), nm); - parent = parent->get_parent_context (); - } + SCM voice_type = lyrics->get_property ("associatedVoiceType"); + if (!scm_is_symbol (voice_type)) + return 0; + Context *voice = find_context_near (lyrics, voice_type, nm); if (voice) return voice; - parent = lyrics; - voice = 0; - while (parent && !voice) - { - voice = find_context_below (parent, ly_symbol2scm ("Voice"), ""); - parent = parent->get_parent_context (); - } - - return voice; + return find_context_near (lyrics, voice_type, ""); } Grob * -get_current_note_head (Context * voice) +get_current_note_head (Context *voice) { + Moment now = voice->now_mom (); for (SCM s = voice->get_property ("busyGrobs"); - is_pair (s); s = ly_cdr (s)) + scm_is_pair (s); s = scm_cdr (s)) { - Item*g = dynamic_cast (unsmob_grob (ly_cdar (s))); - - if (g && !g->get_column () - && Note_head::has_interface (g)) - return g; + Grob *g = unsmob (scm_cdar (s));; + Moment *end_mom = unsmob (scm_caar (s)); + if (!end_mom || !g) + { + programming_error ("busyGrobs invalid"); + continue; + } + + // It's a bit irritating that we just have the length and + // duration of the Grob. + Moment end_from_now = + get_event_length (unsmob (g->get_property ("cause")), now) + + now; + // We cannot actually include more than a single grace note + // using busyGrobs on ungraced lyrics since a grob ending on + // grace time will just have disappeared from busyGrobs by the + // time our ungraced lyrics appear. At best we may catch a + // single grace note. + // + // However, a single grace note ending on a non-grace time is + // indistinguishable from a proper note ending on a non-grace + // time. So we really have no way to obey includeGraceNotes + // here. Not with this mechanism. + if ((*end_mom == end_from_now) + && dynamic_cast (g) + && has_interface (g)) + { + return g; + } } - - return 0; + + return 0; } void @@ -128,31 +172,46 @@ Lyric_engraver::stop_translation_timestep () { if (text_) { - Context * voice = get_voice_to_lyrics (get_parent_context ()); + Context *voice = get_voice_to_lyrics (context ()); if (voice) - { - Grob *head = get_current_note_head (voice); - - if (head) - { - text_->set_parent (head, X_AXIS); - if (melisma_busy (voice)) - text_->set_property ("self-alignment-X", scm_int2num (LEFT)); - } - } - - typeset_grob (text_); - text_ =0; + { + Grob *head = get_current_note_head (voice); + + if (head) + { + text_->set_parent (head->get_parent(X_AXIS), X_AXIS); + if (melisma_busy (voice) + && !to_boolean (get_property ("ignoreMelismata"))) + text_->set_property ("self-alignment-X", + get_property ("lyricMelismaAlignment")); + } + } + + last_text_ = text_; + text_ = 0; } - event_ =0; + event_ = 0; } +void +Lyric_engraver::boot () +{ + ADD_LISTENER (Lyric_engraver, lyric); +} + +ADD_TRANSLATOR (Lyric_engraver, + /* doc */ + "Engrave text for lyrics.", + + /* create */ + "LyricText ", + + /* read */ + "ignoreMelismata " + "lyricMelismaAlignment " + "searchForVoice", -ENTER_DESCRIPTION (Lyric_engraver, -/* descr */ "", -/* creats*/ "", -/* accepts */ "lyric-event", -/* acks */ "", -/* reads */ "", -/* write */ ""); + /* write */ + "" + );