#include "international.hh"
#include "item.hh"
#include "rest.hh"
+#include "score-context.hh"
#include "spanner.hh"
-#include "stream-event.hh"
#include "stem.hh"
#include "warn.hh"
DECLARE_ACKNOWLEDGER (stem);
DECLARE_ACKNOWLEDGER (rest);
protected:
- Stream_event *start_ev_;
+ Music *start_ev_;
Spanner *finished_beam_;
Spanner *beam_;
- Stream_event *prev_start_ev_;
+ Music *prev_start_ev_;
- Stream_event *now_stop_ev_;
+ Music *now_stop_ev_;
Beaming_pattern *beam_info_;
Beaming_pattern *finished_beam_info_;
void start_translation_timestep ();
virtual void finalize ();
+ virtual bool try_music (Music *);
void process_music ();
virtual bool valid_start_point ();
virtual bool valid_end_point ();
- DECLARE_TRANSLATOR_LISTENER (beam);
public:
TRANSLATOR_DECLARATIONS (Beam_engraver);
};
prev_start_ev_ = 0;
}
-IMPLEMENT_TRANSLATOR_LISTENER (Beam_engraver, beam);
-void
-Beam_engraver::listen_beam (Stream_event *ev)
+bool
+Beam_engraver::try_music (Music *m)
{
- Direction d = to_dir (ev->get_property ("span-direction"));
-
- if (d == START && valid_start_point ())
- ASSIGN_EVENT_ONCE (start_ev_, ev);
- else if (d == STOP && valid_end_point ())
- ASSIGN_EVENT_ONCE (now_stop_ev_, ev);
+ if (m->is_mus_type ("beam-event"))
+ {
+ Direction d = to_dir (m->get_property ("span-direction"));
+ if (d == START && !valid_start_point ())
+ return false;
+ if (d == STOP && !valid_end_point ())
+ return false;
+
+ if (d == START)
+ start_ev_ = m;
+ else if (d == STOP)
+ now_stop_ev_ = m;
+ return true;
+ }
+ return false;
}
void
- Stream_event *ev = info.ultimate_event_cause ();
- if (!ev->in_event_class ("rhythmic-event"))
+ Music *m = info.ultimate_music_cause ();
+ if (!m->is_mus_type ("rhythmic-event"))
{
- info.grob ()->warning (_ ("stem must have Rhythmic structure"));
+ string s = _ ("stem must have Rhythmic structure");
+ if (info.music_cause ())
+ info.music_cause ()->origin ()->warning (s);
+ else
+ ::warning (s);
+
return;
}
last_stem_added_at_ = now;
- int durlog = unsmob_duration (ev->get_property ("duration"))->duration_log ();
+ int durlog = unsmob_duration (m->get_property ("duration"))->duration_log ();
if (durlog <= 2)
{
- ev->origin ()->warning (_ ("stem doesn't fit in beam"));
+ m->origin ()->warning (_ ("stem doesn't fit in beam"));
prev_start_ev_->origin ()->warning (_ ("beam was started here"));
/*
don't return, since
public:
TRANSLATOR_DECLARATIONS (Grace_beam_engraver);
- DECLARE_TRANSLATOR_LISTENER (beam);
-
protected:
virtual bool valid_start_point ();
virtual bool valid_end_point ();
return beam_ && valid_start_point ();
}
-/*
- Ugh, C&P code.
- */
-IMPLEMENT_TRANSLATOR_LISTENER (Grace_beam_engraver, beam);
-void
-Grace_beam_engraver::listen_beam (Stream_event *ev)
-{
- Direction d = to_dir (ev->get_property ("span-direction"));
-
- if (d == START && valid_start_point ())
- start_ev_ = ev;
- else if (d == STOP && valid_end_point ())
- now_stop_ev_ = ev;
-}
-
-
ADD_ACKNOWLEDGER (Grace_beam_engraver, stem);
ADD_ACKNOWLEDGER (Grace_beam_engraver, rest);