X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fmulti-measure-rest-engraver.cc;h=9f460dd981871ea7ab640838d49b5dc71aaf1dd1;hb=40aac0ae57ee113faa860ba221d83d9e6312173e;hp=03578a58153053d8da994bf152d9acc0acea0bc3;hpb=9efbad2d9487a05b04423e7e9f062968e8f8eaf4;p=lilypond.git diff --git a/lily/multi-measure-rest-engraver.cc b/lily/multi-measure-rest-engraver.cc index 03578a5815..9f460dd981 100644 --- a/lily/multi-measure-rest-engraver.cc +++ b/lily/multi-measure-rest-engraver.cc @@ -1,82 +1,279 @@ /* - multi_measure_rest-engraver.cc -- implement Multi_measure_rest_engraver + This file is part of LilyPond, the GNU music typesetter. - (c) 1998 Jan Nieuwenhuizen - Han-Wen Nienhuys + Copyright (C) 1998--2014 Jan Nieuwenhuizen + Han-Wen Nienhuys + + 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 "proto.hh" -#include "musical-request.hh" #include "multi-measure-rest.hh" -#include "multi-measure-rest-engraver.hh" -#include "score-column.hh" -#include "time-description.hh" +#include "paper-column.hh" +#include "engraver-group.hh" +#include "side-position-interface.hh" +#include "staff-symbol-referencer.hh" +#include "stream-event.hh" +#include "moment.hh" +#include "spanner.hh" + +#include "translator.icc" + +/** + The name says it all: make multi measure rests +*/ +class Multi_measure_rest_engraver : public Engraver +{ +public: + TRANSLATOR_DECLARATIONS (Multi_measure_rest_engraver); -IMPLEMENT_IS_TYPE_B1 (Multi_measure_rest_engraver, Engraver); -ADD_THIS_TRANSLATOR (Multi_measure_rest_engraver); +protected: + void process_music (); + void stop_translation_timestep (); + void start_translation_timestep (); + virtual void finalize (); + DECLARE_TRANSLATOR_LISTENER (multi_measure_rest); + DECLARE_TRANSLATOR_LISTENER (multi_measure_text); + +private: + Stream_event *rest_ev_; + vector text_events_; + int start_measure_; + Rational last_main_moment_; + Moment stop_moment_; + + bool bar_seen_; + Item *last_command_item_; + Spanner *last_rest_; + Spanner *mmrest_; + + vector numbers_; + vector last_numbers_; +}; Multi_measure_rest_engraver::Multi_measure_rest_engraver () { - start_measure_i_ = 0; - rest_item_creation_mom_ = rest_req_stop_mom_ =0; - multi_measure_req_l_ = 0; - mmrest_p_ = 0; + last_command_item_ = 0; + + /* + For the start of a score. + */ + bar_seen_ = true; + start_measure_ = 0; + mmrest_ = 0; + last_rest_ = 0; + rest_ev_ = 0; } -bool -Multi_measure_rest_engraver::do_try_request (Request* req_l) +IMPLEMENT_TRANSLATOR_LISTENER (Multi_measure_rest_engraver, multi_measure_rest); +void +Multi_measure_rest_engraver::listen_multi_measure_rest (Stream_event *ev) { - if (!dynamic_cast (req_l)) - return false; - - if (multi_measure_req_l_) - if (!multi_measure_req_l_->equal_b (req_l) - || req_start_mom_ != now_moment ()) - return false; - - multi_measure_req_l_ = dynamic_cast (req_l); - req_start_mom_ = now_moment (); - - rest_req_stop_mom_ = req_start_mom_ + multi_measure_req_l_->duration_.length (); - - return true; + /* FIXME: Should use ASSIGN_EVENT_ONCE. Can't do that yet because of + the kill-mm-rests hack in part-combine-iterator. */ + rest_ev_ = ev; + stop_moment_ = now_mom () + get_event_length (rest_ev_, now_mom ()); + /* + if (ASSIGN_EVENT_ONCE (rest_ev_, ev)) + stop_moment_ = now_mom () + get_event_length (rest_ev_); + */ } +IMPLEMENT_TRANSLATOR_LISTENER (Multi_measure_rest_engraver, multi_measure_text); void -Multi_measure_rest_engraver::do_process_requests () +Multi_measure_rest_engraver::listen_multi_measure_text (Stream_event *ev) { - if (multi_measure_req_l_ && !mmrest_p_) + text_events_.push_back (ev); +} + +void +Multi_measure_rest_engraver::process_music () +{ + if (rest_ev_ && !mmrest_ + && stop_moment_ > now_mom ()) { - Time_description const *time = get_staff_info().time_C_; - mmrest_p_ = new Multi_measure_rest; - rest_item_creation_mom_ = time->when_mom (); - announce_element (Score_element_info (mmrest_p_, multi_measure_req_l_)); - start_measure_i_ = time->bars_i_; + mmrest_ = make_spanner ("MultiMeasureRest", rest_ev_->self_scm ()); + + Spanner *sp + = make_spanner ("MultiMeasureRestNumber", rest_ev_->self_scm ()); + numbers_.push_back (sp); + + if (text_events_.size ()) + { + for (vsize i = 0; i < text_events_.size (); i++) + { + Stream_event *e = text_events_[i]; + Spanner *sp + = make_spanner ("MultiMeasureRestText", e->self_scm ()); + SCM t = e->get_property ("text"); + SCM dir = e->get_property ("direction"); + sp->set_property ("text", t); + if (is_direction (dir)) + sp->set_property ("direction", dir); + + numbers_.push_back (sp); + } + + /* + Stack different scripts. + */ + for (DOWN_and_UP (d)) + { + Grob *last = 0; + for (vsize i = 0; i < numbers_.size (); i++) + { + if (scm_from_int (d) == numbers_[i]->get_property ("direction")) + { + if (last) + Side_position_interface::add_support (numbers_[i], last); + last = numbers_[i]; + } + } + } + } + + for (vsize i = 0; i < numbers_.size (); i++) + { + Side_position_interface::add_support (numbers_[i], mmrest_); + numbers_[i]->set_parent (mmrest_, Y_AXIS); + } + + start_measure_ + = scm_to_int (get_property ("internalBarNumber")); } + + bar_seen_ = bar_seen_ || scm_is_string (get_property ("whichBar")); } void -Multi_measure_rest_engraver::do_pre_move_processing () +Multi_measure_rest_engraver::stop_translation_timestep () { - Moment now (now_moment ()); - if (mmrest_p_ && rest_item_creation_mom_ == now) + /* We cannot do this earlier, as breakableSeparationItem is not yet + there. + + Actually, we no longer use breakableSeparationItem -- should this be moved? + -- jneem */ + if (bar_seen_) { - typeset_element (mmrest_p_); + Grob *cmc = unsmob_grob (get_property ("currentCommandColumn")); + + /* Ugh, this is a kludge - need this for multi-measure-rest-grace.ly */ + last_command_item_ = dynamic_cast (cmc); } + + if (last_command_item_ && (mmrest_ || last_rest_)) + { + if (last_rest_) + { + add_bound_item (last_rest_, last_command_item_); + for (vsize i = 0; i < last_numbers_.size (); i++) + add_bound_item (last_numbers_[i], last_command_item_); + } + + if (mmrest_) + { + add_bound_item (mmrest_, last_command_item_); + for (vsize i = 0; i < numbers_.size (); i++) + add_bound_item (numbers_[i], last_command_item_); + + last_command_item_ = 0; + } + } + + Moment mp (robust_scm2moment (get_property ("measurePosition"), Moment (0))); + if (last_rest_) + { + last_rest_ = 0; + last_numbers_.clear (); + } + + text_events_.clear (); + bar_seen_ = false; } void -Multi_measure_rest_engraver::do_post_move_processing () +Multi_measure_rest_engraver::start_translation_timestep () { - Time_description const *time = get_staff_info().time_C_; - Moment now (now_moment ()); - if (rest_req_stop_mom_ <= now) - multi_measure_req_l_ = 0; + if (now_mom ().main_part_ >= stop_moment_.main_part_) + rest_ev_ = 0; - if (mmrest_p_ && (!time->whole_in_measure_ || !multi_measure_req_l_)) + Moment mp (robust_scm2moment (get_property ("measurePosition"), Moment (0))); + + Moment now = now_mom (); + if (mmrest_ + && now.main_part_ != last_main_moment_ + && mp.main_part_ == Rational (0)) { - assert (rest_item_creation_mom_ < now); - mmrest_p_->measures_i_ = time->bars_i_ - start_measure_i_; - mmrest_p_ = 0; + last_rest_ = mmrest_; + last_numbers_ = numbers_; + + int cur = scm_to_int (get_property ("internalBarNumber")); + int num = cur - start_measure_; + + /* + We can't plug a markup directly into the grob, since the + measure-count determines the formatting of the mmrest. + */ + last_rest_->set_property ("measure-count", scm_from_int (num)); + + mmrest_ = 0; + numbers_.clear (); + + Grob *last = last_numbers_.size () ? last_numbers_[0] : 0; + if (last && last->get_property ("text") == SCM_EOL) + { + SCM thres = get_property ("restNumberThreshold"); + int t = 1; + if (scm_is_number (thres)) + t = scm_to_int (thres); + + if (num <= t) + last->suicide (); + else + { + SCM text + = scm_number_to_string (scm_from_int (num), scm_from_int (10)); + last->set_property ("text", text); + } + } } + + last_main_moment_ = now.main_part_; +} + +void +Multi_measure_rest_engraver::finalize () +{ } + +ADD_TRANSLATOR (Multi_measure_rest_engraver, + /* doc */ + "Engrave multi-measure rests that are produced with" + " @samp{R}. It reads @code{measurePosition} and" + " @code{internalBarNumber} to determine what number to print" + " over the @ref{MultiMeasureRest}.", + + /* create */ + "MultiMeasureRest " + "MultiMeasureRestNumber " + "MultiMeasureRestText ", + + /* read */ + "internalBarNumber " + "restNumberThreshold " + "currentCommandColumn " + "measurePosition ", + + /* write */ + "" + );