-/*
- grob-pq-engraver.cc -- implement Grob_pq_engraver
+/*
+ grob-pq-engraver.cc -- implement Grob_pq_engraver
source file of the GNU LilyPond music typesetter
- (c) 2001--2002 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 2001--2008 Han-Wen Nienhuys <hanwen@xs4all.nl>
*/
-#include "translator-group.hh"
+#include "context.hh"
#include "engraver.hh"
#include "grob.hh"
#include "warn.hh"
-struct Grob_mom
+struct Grob_pq_entry
{
- Grob * grob_ ;
+ Grob *grob_;
Moment end_;
- Grob_mom () {}
- Grob_mom (Grob*gr, Moment e)
- {
- grob_ = gr;
- end_ = e;
- }
};
-int compare (Grob_mom const &a, Grob_mom const &b)
+bool
+operator< (Grob_pq_entry const &a, Grob_pq_entry const &b)
{
- return Moment::compare (a.end_, b.end_);
+ return a.end_ < b.end_;
}
-
-class Grob_pq_engraver: public Engraver
+class Grob_pq_engraver : public Engraver
{
public:
- TRANSLATOR_DECLARATIONS(Grob_pq_engraver);
-
- Array<Grob_mom> current_grobs_;
+ TRANSLATOR_DECLARATIONS (Grob_pq_engraver);
protected:
virtual void initialize ();
- virtual void acknowledge_grob (Grob_info);
- virtual void start_translation_timestep ();
- virtual void stop_translation_timestep ();
+ DECLARE_ACKNOWLEDGER (grob);
+ void start_translation_timestep ();
+ void stop_translation_timestep ();
+ void process_acknowledged ();
+
+ vector<Grob_pq_entry> started_now_;
};
-
-Grob_pq_engraver::Grob_pq_engraver()
+Grob_pq_engraver::Grob_pq_engraver ()
{
}
-
void
Grob_pq_engraver::initialize ()
{
- daddy_trans_->set_property ("busyGrobs", SCM_EOL);
+ context ()->set_property ("busyGrobs", SCM_EOL);
+}
+
+LY_DEFINE (ly_grob_pq_less_p, "ly:grob-pq<?",
+ 2, 0, 0, (SCM a, SCM b),
+ "Compare two grob priority queue entries."
+ " This is an internal function.")
+{
+ if (Moment::compare (*unsmob_moment (scm_car (a)),
+ *unsmob_moment (scm_car (b))) < 0)
+ return SCM_BOOL_T;
+ else
+ return SCM_BOOL_F;
}
void
Grob_pq_engraver::acknowledge_grob (Grob_info gi)
{
- Music * m = gi.music_cause ();
+ Stream_event *ev = gi.event_cause ();
- if (m)
+ if (ev
+ && !gi.grob ()->internal_has_interface (ly_symbol2scm ("multi-measure-interface")))
{
Moment n = now_mom ();
- Moment l = m->length_mom ();
+ Moment l = get_event_length (ev, n);
if (!l.to_bool ())
- return ;
-
- if (n.grace_part_)
- {
- l.grace_part_ = l.main_part_;
- l.main_part_ = 0;
- }
-
- current_grobs_.push (Grob_mom (gi.grob_, n + l));
+ return;
+
+ Moment end = n + l;
+
+ Grob_pq_entry e;
+ e.grob_ = gi.grob ();
+ e.end_ = end;
+
+ started_now_.push_back (e);
}
}
-LY_DEFINE(ly_grob_pq_less_p,
- "ly-grob-pq-less?", 2 , 0 ,0, (SCM a, SCM b),
- "Compare 2 Grob PQ entries. Internal")
+void
+Grob_pq_engraver::process_acknowledged ()
{
- if ( Moment::compare (*unsmob_moment (gh_car (a)),
- *unsmob_moment (gh_car (b))) < 0)
- return SCM_BOOL_T;
- else
- return SCM_BOOL_F;
+ vector_sort (started_now_, less<Grob_pq_entry> ());
+ SCM lst = SCM_EOL;
+ SCM *tail = &lst;
+ for (vsize i = 0; i < started_now_.size (); i++)
+ {
+ *tail = scm_acons (started_now_[i].end_.smobbed_copy (),
+ started_now_[i].grob_->self_scm (),
+ SCM_EOL);
+ tail = SCM_CDRLOC (*tail);
+ }
+
+ SCM busy = get_property ("busyGrobs");
+ busy = scm_merge_x (lst, busy, ly_grob_pq_less_p_proc);
+ context ()->set_property ("busyGrobs", busy);
+
+ started_now_.clear ();
}
-
void
Grob_pq_engraver::stop_translation_timestep ()
{
- Moment now = now_mom();
-
- current_grobs_.sort (&compare);
- SCM current_list = SCM_EOL;
- for (int i = current_grobs_.size(); i--;)
- current_list = scm_cons (scm_cons (current_grobs_[i].end_.smobbed_copy(),
- current_grobs_[i].grob_->self_scm ()), current_list);
+ Moment now = now_mom ();
+ SCM start_busy = get_property ("busyGrobs");
+ SCM busy = start_busy;
+ while (scm_is_pair (busy) && *unsmob_moment (scm_caar (busy)) == now)
+ busy = scm_cdr (busy);
- /*
- We generate some garbage here.
- */
- SCM busy = get_property ("busyGrobs");
- while (gh_pair_p (busy) && *unsmob_moment (gh_caar (busy)) == now)
- {
- busy = gh_cdr (busy);
- }
-
- busy = scm_merge_x (current_list, busy, ly_grob_pq_less_p_proc);
- current_grobs_.clear ();
- daddy_trans_->set_property ("busyGrobs", busy);
}
void
Grob_pq_engraver::start_translation_timestep ()
{
- Moment now = now_mom();
+ Moment now = now_mom ();
SCM start_busy = get_property ("busyGrobs");
SCM busy = start_busy;
- while (gh_pair_p (busy) && *unsmob_moment (gh_caar (busy)) < now)
+ while (scm_is_pair (busy) && *unsmob_moment (scm_caar (busy)) < now)
{
/*
- Todo: do something sensible. The grob-pq-engraver is not water
- tight, and stuff like tupletSpannerDuration confuses it.
- */
- programming_error (_f("Skipped something?\nGrob %s ended before I expected it to end.", unsmob_grob (gh_cdar (busy))->name().to_str0()));
-
- busy = gh_cdr (busy);
+ The grob-pq-engraver is not water tight, and stuff like
+ tupletSpannerDuration confuses it.
+ */
+ busy = scm_cdr (busy);
}
if (start_busy != busy)
- daddy_trans_->set_property ("busyGrobs", busy);
-
+ context ()->set_property ("busyGrobs", busy);
}
+#include "translator.icc"
+ADD_ACKNOWLEDGER (Grob_pq_engraver, grob);
+ADD_TRANSLATOR (Grob_pq_engraver,
+ /* doc */
+ "Administrate when certain grobs (e.g., note heads) stop"
+ " playing.",
+
+ /* create */
+ "",
+
+ /* read */
+ "busyGrobs ",
-ENTER_DESCRIPTION(Grob_pq_engraver,
-/* descr */ "Administrate when certain grobs (eg. note heads) stop playing; this
-engraver is a sort-of a failure, since it doesn't handle all sorts of borderline cases very well.
-",
-/* creats*/ "",
-/* acks */ "grob-interface",
-/* reads */ "busyGrobs",
-/* write */ "busyGrobs");
+ /* write */
+ "busyGrobs "
+ );
projects / lilypond.git / blobdiff