X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fmulti-measure-rest-engraver.cc;h=837b52e201ce4fddf1498ae34299d90603293fec;hb=bdf4ab13203502e7ec7cf9cf5896527643a07c1f;hp=51ff44654231651913b3ddc33fbe5a4ae4449007;hpb=4bbc3761de1012c805f55bc957cb9c7c35ef3ddc;p=lilypond.git diff --git a/lily/multi-measure-rest-engraver.cc b/lily/multi-measure-rest-engraver.cc index 51ff446542..837b52e201 100644 --- a/lily/multi-measure-rest-engraver.cc +++ b/lily/multi-measure-rest-engraver.cc @@ -1,124 +1,260 @@ /* multi_measure_rest-engraver.cc -- implement Multi_measure_rest_engraver - (c) 1998--1999 Jan Nieuwenhuizen - Han-Wen Nienhuys + (c) 1998--2005 Jan Nieuwenhuizen + Han-Wen Nienhuys */ -#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 "bar.hh" +#include "paper-column.hh" +#include "engraver-group-engraver.hh" +#include "side-position-interface.hh" +#include "staff-symbol-referencer.hh" +#include "moment.hh" +/** + The name says it all: make multi measure rests +*/ +class Multi_measure_rest_engraver : public Engraver +{ +public: + TRANSLATOR_DECLARATIONS (Multi_measure_rest_engraver); -ADD_THIS_TRANSLATOR (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 (); -Multi_measure_rest_engraver::Multi_measure_rest_engraver () -{ - start_measure_i_ = 0; - rest_moments_[START] = - rest_moments_[STOP] =0; - multi_measure_req_l_ = 0; +private: + Music *rest_ev_; + Link_array text_events_; + int start_measure_; + Rational last_main_moment_; + Moment stop_moment_; - lastrest_p_ =0; - mmrest_p_ = 0; -} + bool bar_seen_; + Item *last_command_item_; + Spanner *last_rest_; + Spanner *mmrest_; -void -Multi_measure_rest_engraver::acknowledge_element (Score_element_info i) + Link_array numbers_; + Link_array last_numbers_; +}; + +Multi_measure_rest_engraver::Multi_measure_rest_engraver () { - if (Bar *c = dynamic_cast (i.elem_l_)) - { - if (mmrest_p_) - mmrest_p_->add_column (c); - if (lastrest_p_) - lastrest_p_->add_column (c); - } + last_command_item_ = 0; + bar_seen_ = false; + start_measure_ = 0; + mmrest_ = 0; + last_rest_ = 0; + rest_ev_ = 0; } bool -Multi_measure_rest_engraver::do_try_music (Music* req_l) +Multi_measure_rest_engraver::try_music (Music *req) { - Rhythmic_req *r=0; - if (Multi_measure_rest_req *mr = - dynamic_cast (req_l)) - r=mr; - else if (Repetitions_req *rr = - dynamic_cast (req_l)) - r=rr; - if (r) + if (req->is_mus_type ("multi-measure-rest-event")) { - if (multi_measure_req_l_) - if (!multi_measure_req_l_->equal_b (r) - || rest_moments_[START] != now_mom ()) - return false; - - multi_measure_req_l_ = r; - rest_moments_[START] = now_mom (); - - rest_moments_[STOP] = rest_moments_[START] + - multi_measure_req_l_->duration_.length_mom (); + 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; } void -Multi_measure_rest_engraver::do_process_requests () +Multi_measure_rest_engraver::process_music () { - if (multi_measure_req_l_ && !mmrest_p_) + if (rest_ev_ && !mmrest_ + && stop_moment_ > now_mom ()) { - Time_description const *time = get_staff_info().time_C_; - mmrest_p_ = new Multi_measure_rest; - if(dynamic_cast (multi_measure_req_l_)) - mmrest_p_->set_elt_property (alt_symbol_scm_sym, - ly_ch_C_to_scm ("scripts-repeatsign")); - 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 (sp); + + 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 < numbers_.size (); i++) + { + if (scm_int2num (d) == numbers_[i]->get_property ("direction")) + { + if (last) + Side_position_interface::add_support (numbers_[i], last); + last = numbers_[i]; + } + } + } + while (flip (&d) != DOWN); + } + + 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")); } + + 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_mom ()); - Time_description const *time = get_staff_info().time_C_; - if (mmrest_p_ && (now >= rest_moments_[START]) - && !time->whole_in_measure_ - && (mmrest_p_->column_arr_.size () >= 2)) + /* + We can not do this earlier, as breakableSeparationItem is not yet there. + */ + + if (bar_seen_) { - typeset_element (mmrest_p_); + Grob *cmc = unsmob_grob (get_property ("breakableSeparationItem")); + if (!cmc) + cmc = unsmob_grob (get_property ("currentCommandColumn")); + /* - must keep mmrest_p_ around to set measures_i_ - */ + 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 (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; + } } - if (lastrest_p_) + + Moment mp (robust_scm2moment (get_property ("measurePosition"), Moment (0))); + if (last_rest_) { - typeset_element (lastrest_p_); - lastrest_p_ = 0; + last_rest_ = 0; + last_numbers_.clear (); } + + text_events_.clear (); } 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_mom ()); - - if (mmrest_p_ && !time->whole_in_measure_) + if (now_mom ().main_part_ >= stop_moment_.main_part_) { - lastrest_p_ = mmrest_p_; - lastrest_p_->measures_i_ = time->bars_i_ - start_measure_i_; - mmrest_p_ = 0; + rest_ev_ = 0; } - if (now >= rest_moments_[STOP]) + bar_seen_ = false; + + 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)) { - multi_measure_req_l_ = 0; - mmrest_p_ = 0; + last_rest_ = mmrest_; + last_numbers_ = numbers_; + + int cur = scm_to_int (get_property ("currentBarNumber")); + 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_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); + } + } } + + last_main_moment_ = now.main_part_; +} + +void +Multi_measure_rest_engraver::finalize () +{ } +ADD_TRANSLATOR (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 */ "");