X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fmulti-measure-rest-engraver.cc;h=20199593994f1ba0c0386daf56cce529c6af20aa;hb=dbaf1e56e37be0e204231c5bf1adcb14bd8ac3b8;hp=d19f92299791afc4a6598dd73b393a30a8f05a11;hpb=c76d27c59244a331a2873a40e0d7e40ad378d4b8;p=lilypond.git diff --git a/lily/multi-measure-rest-engraver.cc b/lily/multi-measure-rest-engraver.cc index d19f922997..aa4a54b9e7 100644 --- a/lily/multi-measure-rest-engraver.cc +++ b/lily/multi-measure-rest-engraver.cc @@ -1,22 +1,36 @@ /* - multi_measure_rest-engraver.cc -- implement Multi_measure_rest_engraver + This file is part of LilyPond, the GNU music typesetter. - (c) 1998--2004 Jan Nieuwenhuizen - Han-Wen Nienhuys + Copyright (C) 1998--2015 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 "event.hh" #include "multi-measure-rest.hh" #include "paper-column.hh" -#include "engraver-group-engraver.hh" +#include "engraver-group.hh" #include "side-position-interface.hh" #include "staff-symbol-referencer.hh" -#include "engraver.hh" +#include "stream-event.hh" #include "moment.hh" #include "spanner.hh" +#include "translator.icc" + /** - The name says it all: make multi measure rests + The name says it all: make multi measure rests */ class Multi_measure_rest_engraver : public Engraver { @@ -24,246 +38,237 @@ public: TRANSLATOR_DECLARATIONS (Multi_measure_rest_engraver); protected: - virtual bool try_music (Music*); - virtual void process_music (); - virtual void stop_translation_timestep (); - virtual void start_translation_timestep (); - virtual void finalize (); + void process_music (); + void start_translation_timestep (); + DECLARE_TRANSLATOR_LISTENER (multi_measure_rest); + DECLARE_TRANSLATOR_LISTENER (multi_measure_text); private: - Music * rest_ev_; - Link_array text_events_; - int start_measure_; - Rational last_main_moment_; - Moment stop_moment_; - - bool bar_seen_; - Item *last_command_item_ ; - Spanner *last_rest_; - Spanner *mmrest_; + void add_bound_item_to_grobs (Item *); + void clear_lapsed_events (const Moment &now); + bool grobs_initialized () const { return mmrest_; } + void initialize_grobs (); + void reset_grobs (); + void set_measure_count (int n); - Link_array numbers_; - Link_array last_numbers_; +private: + vector text_events_; + // text_[0] is a MultiMeasureRestNumber grob + // the rest are optional MultiMeasureRestText grobs + vector text_; + Stream_event *rest_ev_; + Spanner *mmrest_; + Moment stop_moment_; + int start_measure_; + // Ugh, this is a kludge - need this for multi-measure-rest-grace.ly + Item *last_command_item_; + bool first_time_; }; Multi_measure_rest_engraver::Multi_measure_rest_engraver () + : rest_ev_ (0), + mmrest_ (0), + start_measure_ (0), + last_command_item_ (0), + first_time_ (true) { - last_command_item_ = 0; - bar_seen_ = false; - start_measure_ = 0; - mmrest_ = 0; - last_rest_ =0; - rest_ev_ = 0; } -bool -Multi_measure_rest_engraver::try_music (Music* req) +void +Multi_measure_rest_engraver::listen_multi_measure_rest (Stream_event *ev) { - if (req->is_mus_type ("multi-measure-rest-event")) - { - rest_ev_ = req; - stop_moment_ = now_mom () + rest_ev_->get_length (); - - return true; - } - else if (req->is_mus_type ("multi-measure-text-event")) - { - text_events_.push (req); - return true; - } - return false; + /* 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; + const Moment now (now_mom ()); + stop_moment_ = now + get_event_length (rest_ev_, now); + /* + if (ASSIGN_EVENT_ONCE (rest_ev_, ev)) + stop_moment_ = now_mom () + get_event_length (rest_ev_); + */ + + clear_lapsed_events (now); } void -Multi_measure_rest_engraver::process_music () +Multi_measure_rest_engraver::listen_multi_measure_text (Stream_event *ev) { - if (rest_ev_ && !mmrest_ - && stop_moment_ > now_mom ()) - { - mmrest_ = make_spanner ("MultiMeasureRest", rest_ev_->self_scm ()); - - if (text_events_.size ()) - { - for (int i = 0; i < text_events_.size (); i++) - { - - Music* 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 (sp); - } - - /* - Stack different scripts. - */ - Direction d = DOWN; - do { - Grob *last =0; - for (int i=0; i get_property ("direction")) - { - if (last) - Side_position_interface::add_support (numbers_[i], last); - last = numbers_[i]; - } - } - } while (flip (&d) != DOWN); - } - else - { - Spanner *sp - = make_spanner ("MultiMeasureRestNumber", rest_ev_->self_scm () ); - numbers_.push (sp); - } - - for (int 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 ("currentBarNumber")); - } + text_events_.push_back (ev); +} - bar_seen_ = scm_is_string (get_property ("whichBar")); +void +Multi_measure_rest_engraver::add_bound_item_to_grobs (Item *item) +{ + add_bound_item (mmrest_, item); + for (vsize i = 0; i < text_.size (); ++i) + add_bound_item (text_[i], item); } void -Multi_measure_rest_engraver::stop_translation_timestep () +Multi_measure_rest_engraver::clear_lapsed_events (const Moment &now) { - /* - We can not do this earlier, as breakableSeparationItem is not yet there. - */ - - if (bar_seen_) + if (now.main_part_ >= stop_moment_.main_part_) { - Grob *cmc = unsmob_grob (get_property ("breakableSeparationItem")); - if (!cmc) - 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); + rest_ev_ = 0; + text_events_.clear (); } +} - if (last_command_item_ && (mmrest_ || last_rest_)) +void +Multi_measure_rest_engraver::initialize_grobs () +{ + mmrest_ = make_spanner ("MultiMeasureRest", rest_ev_->self_scm ()); + text_.push_back (make_spanner ("MultiMeasureRestNumber", + rest_ev_->self_scm ())); + + if (text_events_.size ()) { - - if (last_rest_) - { - add_bound_item (last_rest_, last_command_item_); - for (int 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 (int i = 0; i < numbers_.size (); i++) - add_bound_item (numbers_[i], last_command_item_); - - last_command_item_ = 0; - } + 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); + + text_.push_back (sp); + } + + /* + Stack different scripts. + */ + for (DOWN_and_UP (d)) + { + SCM dir = scm_from_int (d); + Grob *last = 0; + for (vsize i = 0; i < text_.size (); i++) + { + if (scm_is_eq (dir, text_[i]->get_property ("direction"))) + { + if (last) + Side_position_interface::add_support (text_[i], last); + last = text_[i]; + } + } + } } - - - SCM smp = get_property ("measurePosition"); - Moment mp = (unsmob_moment (smp)) ? *unsmob_moment (smp) : Moment (0); - if (last_rest_) + for (vsize i = 0; i < text_.size (); i++) { - last_rest_ = 0; - last_numbers_.clear (); + Side_position_interface::add_support (text_[i], mmrest_); + text_[i]->set_parent (mmrest_, Y_AXIS); + text_[i]->set_parent (mmrest_, X_AXIS); } +} - text_events_.clear (); +void +Multi_measure_rest_engraver::reset_grobs () +{ + text_.clear (); + mmrest_ = 0; } void -Multi_measure_rest_engraver::start_translation_timestep () +Multi_measure_rest_engraver::set_measure_count (int n) { - if (now_mom ().main_part_ >= stop_moment_.main_part_) + SCM n_scm = scm_from_int (n); + assert (mmrest_); + mmrest_->set_property ("measure-count", n_scm); + + Grob *g = text_[0]; // the MultiMeasureRestNumber + assert (g); + if (scm_is_null (g->get_property ("text"))) { - rest_ev_ = 0; + SCM thres = get_property ("restNumberThreshold"); + int t = 1; + if (scm_is_number (thres)) + t = scm_to_int (thres); + + if (n <= t) + g->suicide (); + else + { + SCM text = scm_number_to_string (n_scm, scm_from_int (10)); + g->set_property ("text", text); + } } +} - bar_seen_ = false; +void +Multi_measure_rest_engraver::process_music () +{ + const bool measure_end + = scm_is_string (get_property ("whichBar")) + && (robust_scm2moment (get_property ("measurePosition"), + Moment (0)).main_part_ == Rational (0)); + + if (measure_end || first_time_) + { + last_command_item_ = unsmob (get_property ("currentCommandColumn")); - SCM smp = get_property ("measurePosition"); - Moment mp = (unsmob_moment (smp)) ? *unsmob_moment (smp) : Moment (0); + // Finalize the current grobs. + if (grobs_initialized ()) + { + int curr_measure = scm_to_int (get_property ("internalBarNumber")); + set_measure_count (curr_measure - start_measure_); + if (last_command_item_) + add_bound_item_to_grobs (last_command_item_); + reset_grobs (); + } + } - Moment now =now_mom (); - if (mmrest_ - && now.main_part_ != last_main_moment_ - && mp.main_part_ == Rational (0)) + // Create new grobs if a rest event is (still) active. + if (!grobs_initialized () && rest_ev_) { - last_rest_ = mmrest_; - last_numbers_ = numbers_; - - int cur = scm_to_int (get_property ("currentBarNumber")); - int num = cur - start_measure_; + initialize_grobs (); + text_events_.clear (); - /* - 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_int2num (num)); - - SCM sml = get_property ("measureLength"); - Rational ml = (unsmob_moment (sml)) ? unsmob_moment (sml)->main_part_ : Rational (1); - if (ml >= Rational (2)) - { - last_rest_->set_property ("use-breve-rest", SCM_BOOL_T); - } - - 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_int2num (num), scm_from_int (10)); - last->set_property ("text", text); - } - } + if (last_command_item_) + { + add_bound_item_to_grobs (last_command_item_); + last_command_item_ = 0; + } + + start_measure_ = scm_to_int (get_property ("internalBarNumber")); } - last_main_moment_ = now.main_part_; + first_time_ = false; } void -Multi_measure_rest_engraver::finalize () +Multi_measure_rest_engraver::start_translation_timestep () +{ + clear_lapsed_events (now_mom ()); +} + +void +Multi_measure_rest_engraver::boot () { + ADD_LISTENER (Multi_measure_rest_engraver, multi_measure_rest); + ADD_LISTENER (Multi_measure_rest_engraver, multi_measure_text); } -ENTER_DESCRIPTION (Multi_measure_rest_engraver, -/* descr */ - "Engraves multi-measure rests that are produced with @code{R}. Reads " -"measurePosition and currentBarNumber to determine what number to print " -"over the MultiMeasureRest. Reads measureLength to determine if it " -"should use a whole rest or a breve rest to represent 1 measure " - , -/* creats*/ "MultiMeasureRest MultiMeasureRestNumber MultiMeasureRestText", -/* accepts */ "multi-measure-rest-event multi-measure-text-event", -/* acks */ "", -/* reads */ "currentBarNumber restNumberThreshold breakableSeparationItem currentCommandColumn measurePosition measureLength", -/* write */ ""); +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 " + "whichBar ", + + /* write */ + "" + );