/*
multi_measure_rest-engraver.cc -- implement Multi_measure_rest_engraver
- (c) 1998--2002 Jan Nieuwenhuizen <janneke@gnu.org>
- Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1998--2005 Jan Nieuwenhuizen <janneke@gnu.org>
+ Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
-#include "event.hh"
#include "multi-measure-rest.hh"
#include "paper-column.hh"
#include "engraver-group-engraver.hh"
-
+#include "side-position-interface.hh"
#include "staff-symbol-referencer.hh"
-#include "engraver.hh"
#include "moment.hh"
-#include "spanner.hh"
/**
- 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
{
public:
- TRANSLATOR_DECLARATIONS(Multi_measure_rest_engraver);
+ TRANSLATOR_DECLARATIONS (Multi_measure_rest_engraver);
protected:
- virtual bool try_music (Music*);
+ virtual bool try_music (Music *);
virtual void process_music ();
virtual void stop_translation_timestep ();
virtual void start_translation_timestep ();
virtual void finalize ();
private:
- Music * new_req_;
- Music * busy_span_req_;
- Music * stop_req_;
+ Music *rest_ev_;
+ Link_array<Music> text_events_;
int start_measure_;
- Moment start_moment_;
-
- Spanner *mmrest_;
- Spanner *lastrest_;
-};
+ Rational last_main_moment_;
+ Moment stop_moment_;
+ bool bar_seen_;
+ Item *last_command_item_;
+ Spanner *last_rest_;
+ Spanner *mmrest_;
+ Link_array<Spanner> numbers_;
+ Link_array<Spanner> last_numbers_;
+};
Multi_measure_rest_engraver::Multi_measure_rest_engraver ()
{
+ last_command_item_ = 0;
+ bar_seen_ = false;
start_measure_ = 0;
- mmrest_ = lastrest_ =0;
- new_req_ = busy_span_req_ = stop_req_ =0;
+ mmrest_ = 0;
+ last_rest_ = 0;
+ rest_ev_ = 0;
}
-
bool
-Multi_measure_rest_engraver::try_music (Music* req)
+Multi_measure_rest_engraver::try_music (Music *req)
{
if (req->is_mus_type ("multi-measure-rest-event"))
{
- Direction d = to_dir (req->get_mus_property ("span-direction"));
- if (d == STOP)
- {
- stop_req_ = req;
- }
- else if (d == START&& !new_req_)
- {
- new_req_ = req;
- }
+ 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::process_music ()
{
- if (new_req_ && stop_req_)
- stop_req_ = 0;
+ if (rest_ev_ && !mmrest_
+ && stop_moment_ > now_mom ())
+ {
+ mmrest_ = make_spanner ("MultiMeasureRest", rest_ev_->self_scm ());
- if (new_req_)
- start_moment_ = now_mom ();
+ Spanner *sp
+ = make_spanner ("MultiMeasureRestNumber", rest_ev_->self_scm ());
+ numbers_.push (sp);
- if (stop_req_)
- {
- busy_span_req_ =0;
- stop_req_ = 0;
- }
-
- if (new_req_)
- {
- busy_span_req_ = new_req_;
- new_req_ =0;
- }
+ if (text_events_.size ())
+ {
+ for (int i = 0; i < text_events_.size (); i++)
+ {
- if (busy_span_req_ && !mmrest_)
- {
- mmrest_ = new Spanner (get_property ("MultiMeasureRest"));
+ 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);
+ }
- announce_grob(mmrest_, busy_span_req_->self_scm());
start_measure_
- = gh_scm2int (get_property ("currentBarNumber"));
+ = scm_to_int (get_property ("currentBarNumber"));
}
- if (gh_string_p (get_property ("whichBar")))
- {
- Grob *cmc = unsmob_grob (get_property( "currentCommandColumn"));
- Item *it = dynamic_cast<Item*> (cmc);
- if (mmrest_)
- add_bound_item (mmrest_, it);
- if (lastrest_)
- add_bound_item (lastrest_,it);
- }
+ bar_seen_ = scm_is_string (get_property ("whichBar"));
}
void
Multi_measure_rest_engraver::stop_translation_timestep ()
{
- SCM smp = get_property ("measurePosition");
- Moment mp = (unsmob_moment (smp)) ? *unsmob_moment (smp) : Moment (0);
+ /*
+ We can not do this earlier, as breakableSeparationItem is not yet there.
+ */
- if (mmrest_ && (now_mom () >= start_moment_)
- && !mp.to_bool ()
- && mmrest_->get_bound (LEFT) && mmrest_->get_bound (RIGHT))
+ if (bar_seen_)
{
- typeset_grob (mmrest_);
+ Grob *cmc = unsmob_grob (get_property ("breakableSeparationItem"));
+ if (!cmc)
+ cmc = unsmob_grob (get_property ("currentCommandColumn"));
+
/*
- we must keep mmrest_ around to set measure-count, so
- no mmrest_ = 0 here.
- */
+ Ugh, this is a kludge - need this for multi-measure-rest-grace.ly
+ */
+ last_command_item_ = dynamic_cast<Item *> (cmc);
}
- if (lastrest_)
+ if (last_command_item_ && (mmrest_ || last_rest_))
{
- /* sanity check */
- if (lastrest_->get_bound (LEFT) && lastrest_->get_bound (RIGHT)
- && lastrest_->get_bound (LEFT) != lastrest_->get_bound (RIGHT))
- typeset_grob (lastrest_);
- lastrest_ = 0;
+ 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 (new_req_)
+ Moment mp (robust_scm2moment (get_property ("measurePosition"), Moment (0)));
+ if (last_rest_)
{
- busy_span_req_ = new_req_;
- new_req_ =0;
+ last_rest_ = 0;
+ last_numbers_.clear ();
}
-
+
+ text_events_.clear ();
}
void
Multi_measure_rest_engraver::start_translation_timestep ()
{
- SCM smp = get_property ("measurePosition");
- Moment mp = (unsmob_moment (smp)) ? *unsmob_moment (smp) : Moment (0);
-
- if (mmrest_ && !mp.to_bool ())
+ if (now_mom ().main_part_ >= stop_moment_.main_part_)
{
- lastrest_ = mmrest_;
- int cur = gh_scm2int (get_property ("currentBarNumber"));
- lastrest_->set_grob_property ("measure-count",
- gh_int2scm (cur - start_measure_));
+ rest_ev_ = 0;
+ }
+
+ 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))
+ {
+ 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 ()
{
- if (mmrest_)
- typeset_grob (mmrest_);
- if (lastrest_)
- typeset_grob (lastrest_);
}
-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
-",
-/* creats*/ "MultiMeasureRest",
-/* accepts */ "multi-measure-rest-event",
-/* acks */ "",
-/* reads */ "currentBarNumber currentCommandColumn measurePosition",
-/* write */ "");
+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 */ "");