/*
multi_measure_rest-engraver.cc -- implement Multi_measure_rest_engraver
- (c) 1998 Jan Nieuwenhuizen <janneke@gnu.org>
+ (c) 1998--2001 Jan Nieuwenhuizen <janneke@gnu.org>
Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
-#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-score.hh"
-//#include "p-score.hh"
-//#include "paper-def.hh"
-//#include "main.hh"
-//#include "global-translator.hh"
-#include "bar.hh"
+#include "paper-column.hh"
+#include "engraver-group-engraver.hh"
+
+#include "staff-symbol-referencer.hh"
+#include "engraver.hh"
+#include "moment.hh"
+#include "spanner.hh"
+
+/**
+ The name says it all: make multi measure rests
+
+*/
+class Multi_measure_rest_engraver : public Engraver
+{
+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 ();
+
+private:
+ Span_req * new_req_l_;
+ Span_req * busy_span_req_l_;
+ Span_req * stop_req_l_;
+ int start_measure_i_;
+ Moment start_moment_;
+
+ Spanner *mmrest_p_;
+ Spanner *lastrest_p_;
+};
-ADD_THIS_TRANSLATOR (Multi_measure_rest_engraver);
Multi_measure_rest_engraver::Multi_measure_rest_engraver ()
{
start_measure_i_ = 0;
- rest_stop_mom_ =0;
- // rest_item_creation_mom_ = 0;
- multi_measure_req_l_ = 0;
- mmrest_p_ = 0;
+ mmrest_p_ = lastrest_p_ =0;
+ new_req_l_ = busy_span_req_l_ = stop_req_l_ =0;
}
-void
-Multi_measure_rest_engraver::acknowledge_element (Score_element_info i)
+
+bool
+Multi_measure_rest_engraver::try_music (Music* req_l)
{
- if (Bar *c = dynamic_cast<Bar*> (i.elem_l_))
+ if (Span_req * sp = dynamic_cast<Span_req*> (req_l))
{
- if (mmrest_p_)
- mmrest_p_->add_column (c);
- if (lastrest_p_)
- lastrest_p_->add_column (c);
+
+ if (scm_equal_p (sp->get_mus_property ("span-type"),
+ ly_str02scm ("rest")) == SCM_BOOL_T)
+ {
+ if (sp->get_span_dir () == STOP)
+ {
+ stop_req_l_ = sp;
+ }
+ else if (sp->get_span_dir () == START && !new_req_l_)
+ {
+ new_req_l_ = sp;
+ }
+ return true;
+ }
}
+ return false;
}
-bool
-Multi_measure_rest_engraver::do_try_music (Music* req_l)
+void
+Multi_measure_rest_engraver::process_music ()
{
- if (Multi_measure_rest_req *mr = dynamic_cast<Multi_measure_rest_req *> (req_l))
- {
- if (multi_measure_req_l_)
- if (!multi_measure_req_l_->equal_b (mr)
- || rest_start_mom_ != now_moment ())
- return false;
+ if (new_req_l_ && stop_req_l_)
+ stop_req_l_ = 0;
+
+ if (new_req_l_)
+ start_moment_ = now_mom ();
+
+ if (stop_req_l_)
+ {
+ busy_span_req_l_ =0;
+ stop_req_l_ = 0;
+ }
- multi_measure_req_l_ = mr;
- rest_start_mom_ = now_moment ();
-
- rest_stop_mom_ = rest_start_mom_ + multi_measure_req_l_->duration_.length ();
- return true;
- }
- return false;
-}
+ if (new_req_l_)
+ {
+ busy_span_req_l_ = new_req_l_;
+ new_req_l_ =0;
+ }
-void
-Multi_measure_rest_engraver::do_process_requests ()
-{
- if (multi_measure_req_l_ && !mmrest_p_)
+ if (busy_span_req_l_ && !mmrest_p_)
{
- Time_description const *time = get_staff_info().time_C_;
- mmrest_p_ = new Multi_measure_rest;
- announce_element (Score_element_info (mmrest_p_, multi_measure_req_l_));
- start_measure_i_ = time->bars_i_;
+ mmrest_p_ = new Spanner (get_property ("MultiMeasureRest"));
+
+ Multi_measure_rest::set_interface (mmrest_p_);
+ Staff_symbol_referencer::set_interface (mmrest_p_);
+
+ announce_grob (mmrest_p_, busy_span_req_l_);
+ start_measure_i_
+ = gh_scm2int (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_p_)
+ add_bound_item (mmrest_p_, it);
+ if (lastrest_p_)
+ add_bound_item (lastrest_p_,it);
}
}
void
-Multi_measure_rest_engraver::do_pre_move_processing ()
+Multi_measure_rest_engraver::stop_translation_timestep ()
{
- Moment now (now_moment ());
- Time_description const *time = get_staff_info().time_C_;
- if (mmrest_p_ && (now >= rest_start_mom_)
- && !time->whole_in_measure_
- && (mmrest_p_->column_arr_.size () >= 2))
+ SCM smp = get_property ("measurePosition");
+ Moment mp = (unsmob_moment (smp)) ? *unsmob_moment (smp) : Moment (0);
+
+ if (mmrest_p_ && (now_mom () >= start_moment_)
+ && !mp.to_bool ()
+ && mmrest_p_->get_bound (LEFT) && mmrest_p_->get_bound (RIGHT))
{
- typeset_element (mmrest_p_);
+ typeset_grob (mmrest_p_);
/*
- must keep mmrest_p_ around to set measures_i_
+ we must keep mmrest_p_ around to set measure-count, so
+ no mmrest_p_ = 0 here.
*/
}
+
if (lastrest_p_)
{
- typeset_element (lastrest_p_);
+ /* sanity check */
+ if (lastrest_p_->get_bound (LEFT) && lastrest_p_->get_bound (RIGHT)
+ && lastrest_p_->get_bound (LEFT) != lastrest_p_->get_bound (RIGHT))
+ typeset_grob (lastrest_p_);
lastrest_p_ = 0;
}
+
+ if (new_req_l_)
+ {
+ busy_span_req_l_ = new_req_l_;
+ new_req_l_ =0;
+ }
+
}
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 (mmrest_p_ && !time->whole_in_measure_)
+ SCM smp = get_property ("measurePosition");
+ Moment mp = (unsmob_moment (smp)) ? *unsmob_moment (smp) : Moment (0);
+
+ if (mmrest_p_ && !mp.to_bool ())
{
lastrest_p_ = mmrest_p_;
- lastrest_p_->measures_i_ = time->bars_i_ - start_measure_i_;
+ int cur = gh_scm2int (get_property ("currentBarNumber"));
+ lastrest_p_->set_grob_property ("measure-count",
+ gh_int2scm (cur - start_measure_i_));
mmrest_p_ = 0;
}
+}
- if (now >= rest_stop_mom_)
- {
- multi_measure_req_l_ = 0;
- mmrest_p_ = 0;
- }
+
+void
+Multi_measure_rest_engraver::finalize ()
+{
+ if (mmrest_p_)
+ typeset_grob (mmrest_p_);
+ if (lastrest_p_)
+ typeset_grob (lastrest_p_);
}
+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",
+/* acks */ "",
+/* reads */ "currentBarNumber currentCommandColumn measurePosition",
+/* write */ "");
projects / lilypond.git / blobdiff