/*
- multi_measure_rest-engraver.cc -- implement Multi_measure_rest_engraver
+ This file is part of LilyPond, the GNU music typesetter.
- (c) 1998--1999 Jan Nieuwenhuizen <janneke@gnu.org>
- Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ Copyright (C) 1998--2012 Jan Nieuwenhuizen <janneke@gnu.org>
+ Han-Wen Nienhuys <hanwen@xs4all.nl>
+
+ 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 <http://www.gnu.org/licenses/>.
*/
-#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.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);
+
+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<Stream_event *> text_events_;
+ int start_measure_;
+ Rational last_main_moment_;
+ Moment stop_moment_;
+ bool bar_seen_;
+ Item *last_command_item_;
+ Spanner *last_rest_;
+ Spanner *mmrest_;
-ADD_THIS_TRANSLATOR (Multi_measure_rest_engraver);
+ vector<Spanner *> numbers_;
+ vector<Spanner *> last_numbers_;
+};
Multi_measure_rest_engraver::Multi_measure_rest_engraver ()
{
- start_measure_i_ = 0;
- rest_moments_[START] =
- rest_moments_[STOP] =0;
- multi_measure_req_l_ = 0;
+ last_command_item_ = 0;
- lastrest_p_ =0;
- mmrest_p_ = 0;
+ /*
+ For the start of a score.
+ */
+ bar_seen_ = true;
+ start_measure_ = 0;
+ mmrest_ = 0;
+ last_rest_ = 0;
+ rest_ev_ = 0;
}
+IMPLEMENT_TRANSLATOR_LISTENER (Multi_measure_rest_engraver, multi_measure_rest);
void
-Multi_measure_rest_engraver::acknowledge_element (Score_element_info i)
+Multi_measure_rest_engraver::listen_multi_measure_rest (Stream_event *ev)
{
- if (Bar *c = dynamic_cast<Bar*> (i.elem_l_))
- {
- if (mmrest_p_)
- mmrest_p_->add_column (c);
- if (lastrest_p_)
- lastrest_p_->add_column (c);
- }
+ /* 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_);
+ */
}
-bool
-Multi_measure_rest_engraver::do_try_music (Music* req_l)
+IMPLEMENT_TRANSLATOR_LISTENER (Multi_measure_rest_engraver, multi_measure_text);
+void
+Multi_measure_rest_engraver::listen_multi_measure_text (Stream_event *ev)
{
- Rhythmic_req *r=0;
- if (Multi_measure_rest_req *mr =
- dynamic_cast<Multi_measure_rest_req *> (req_l))
- r=mr;
- else if (Repetitions_req *rr =
- dynamic_cast<Repetitions_req *> (req_l))
- r=rr;
- if (r)
- {
- 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 ();
- return true;
- }
- return false;
+ text_events_.push_back (ev);
}
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<Repetitions_req *> (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_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_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 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_);
- /*
- must keep mmrest_p_ around to set measures_i_
- */
+ 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<Item *> (cmc);
}
- if (lastrest_p_)
+
+ 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_)
{
- typeset_element (lastrest_p_);
- lastrest_p_ = 0;
+ 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_mom ());
+ if (now_mom ().main_part_ >= stop_moment_.main_part_)
+ rest_ev_ = 0;
- if (mmrest_p_ && !time->whole_in_measure_)
- {
- lastrest_p_ = mmrest_p_;
- lastrest_p_->measures_i_ = time->bars_i_ - start_measure_i_;
- mmrest_p_ = 0;
- }
+ Moment mp (robust_scm2moment (get_property ("measurePosition"), Moment (0)));
- if (now >= rest_moments_[STOP])
+ 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 ("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 */
+ ""
+ );
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