(c) 1997--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
+#include "context.hh"
+#include "directional-element-interface.hh"
+#include "engraver.hh"
#include "event.hh"
#include "new-slur.hh"
-#include "warn.hh"
#include "note-column.hh"
-#include "context.hh"
-
-#include "engraver.hh"
#include "spanner.hh"
+#include "tie.hh"
/*
- TODO:
-
- copy from new slur engraver. This code handles nesting (which
- doesn't exist for slurs)
-
+ It is possible that a slur starts and ends on the same note. At
+ least, it is for phrasing slurs: a note can be both beginning and
+ ending of a phrase.
*/
+
class Phrasing_slur_engraver : public Engraver
{
- Link_array<Music> eventses_;
- Link_array<Music> new_phrasing_slur_evs_;
- Link_array<Grob> phrasing_slurs_;
- Link_array<Grob> end_phrasing_slurs_;
- Moment last_start_;
+ Drul_array<Music *> events_;
+ Music * running_slur_start_;
+ Link_array<Grob> slurs_;
+ Link_array<Grob> end_slurs_;
protected:
virtual bool try_music (Music*);
virtual void acknowledge_grob (Grob_info);
virtual void stop_translation_timestep ();
- virtual void start_translation_timestep ();
virtual void finalize ();
- virtual void process_acknowledged_grobs ();
+ virtual void process_music ();
public:
TRANSLATOR_DECLARATIONS (Phrasing_slur_engraver);
-
};
Phrasing_slur_engraver::Phrasing_slur_engraver ()
{
- last_start_ = Moment (-1);
+ events_[START] =events_[STOP] = 0;
}
bool
-Phrasing_slur_engraver::try_music (Music *ev)
+Phrasing_slur_engraver::try_music (Music *m)
{
- if (ev->is_mus_type ("phrasing-slur-event"))
+ if (m->is_mus_type ("phrasing-slur-event"))
{
/*
- Let's not start more than one phrasing slur per moment.
+ Let's not start more than one slur per moment.
*/
-
- Direction d = to_dir (ev->get_property ("span-direction"));
-
+ Direction d = to_dir (m->get_property ("span-direction"));
if (d == START)
{
- if (now_mom () > last_start_)
- {
- new_phrasing_slur_evs_.push (ev);
- last_start_ = now_mom ();
- return true;
- }
+ events_[START] = m;
+ return true;
}
- else
+ else if (d == STOP)
{
- new_phrasing_slur_evs_.push (ev);
+ if (slurs_.is_empty ())
+ return false;
+
+ events_[STOP] = m;
return true;
}
}
return false;
}
+
void
Phrasing_slur_engraver::acknowledge_grob (Grob_info info)
{
+ Grob *e =info.grob_;
if (Note_column::has_interface (info.grob_))
{
- Grob *e =info.grob_;
- for (int i = 0; i < phrasing_slurs_.size (); i++)
- New_slur::add_column (phrasing_slurs_[i], e);
- for (int i = 0; i < end_phrasing_slurs_.size (); i++)
- New_slur::add_column (end_phrasing_slurs_[i], e);
+ for (int i = slurs_.size (); i--; )
+ New_slur::add_column (slurs_[i], e);
+ for (int i = end_slurs_.size (); i-- ; )
+ New_slur::add_column (end_slurs_[i], e);
+ }
+ else
+ {
+ /*
+ TODO: maybe take more objects?
+ */
+ for (int i = slurs_.size (); i--; )
+ New_slur::add_extra_encompass (slurs_[i], e);
+ for (int i = end_slurs_.size (); i--; )
+ New_slur::add_extra_encompass (end_slurs_[i], e);
}
}
void
Phrasing_slur_engraver::finalize ()
{
- for (int i = 0; i < phrasing_slurs_.size (); i++)
- {
- /*
- Let's not typeset unterminated stuff
- */
- phrasing_slurs_[i]->suicide ();
- }
- phrasing_slurs_.clear ();
-
- for (int i=0; i < eventses_.size (); i++)
- {
- eventses_[i]->origin ()->warning (_ ("unterminated phrasing slur"));
- }
+ if (slurs_.size ())
+ slurs_[0]->warning (_("unterminated slur"));
}
void
-Phrasing_slur_engraver::process_acknowledged_grobs ()
+Phrasing_slur_engraver::process_music ()
{
- Link_array<Grob> start_phrasing_slurs;
- for (int i=0; i< new_phrasing_slur_evs_.size (); i++)
+ if (events_[STOP])
{
- Music* phrasing_slur_ev = new_phrasing_slur_evs_[i];
- // end phrasing slur: move the phrasing slur to other array
-
- Direction d = to_dir (phrasing_slur_ev->get_property ("span-direction"));
-
- if (d == STOP)
- {
- if (phrasing_slurs_.is_empty ())
- phrasing_slur_ev->origin ()->warning (_f ("can't find start of phrasing slur"));
- else
- {
- Grob* phrasing_slur = phrasing_slurs_.pop ();
- end_phrasing_slurs_.push (phrasing_slur);
- eventses_.pop ();
- }
- }
- else if (d == START)
- {
- // push a new phrasing_slur onto stack.
- // (use temp. array to wait for all phrasing_slur STOPs)
- Grob* phrasing_slur = make_spanner ("PhrasingSlur", phrasing_slur_ev->self_scm ());
+ end_slurs_ = slurs_;
+ slurs_.clear ();
+ }
+
+ if (events_[START] && slurs_.is_empty ())
+ {
+ Music *ev = events_[START];
- if (Direction updown = to_dir (phrasing_slur_ev->get_property ("direction")))
- {
- phrasing_slur->set_property ("direction", scm_int2num (updown));
- }
+ Grob * slur = make_spanner ("Slur", events_[START]->self_scm ());
+ Direction updown = to_dir (ev->get_property ("direction"));
+ if (updown)
+ set_grob_direction (slur, updown);
- start_phrasing_slurs.push (phrasing_slur);
- eventses_.push (phrasing_slur_ev);
- }
+ slurs_.push (slur);
}
- for (int i=0; i < start_phrasing_slurs.size (); i++)
- phrasing_slurs_.push (start_phrasing_slurs[i]);
- new_phrasing_slur_evs_.clear ();
}
void
Phrasing_slur_engraver::stop_translation_timestep ()
{
- end_phrasing_slurs_.clear ();
-}
-
-void
-Phrasing_slur_engraver::start_translation_timestep ()
-{
- new_phrasing_slur_evs_.clear ();
+ end_slurs_.clear ();
+ events_[START] = events_[STOP] = 0;
}
-
ENTER_DESCRIPTION (Phrasing_slur_engraver,
/* descr */ "Print phrasing slurs. Similar to @ref{Slur_engraver}",
/* creats*/ "PhrasingSlur",
/* accepts */ "phrasing-slur-event",
-/* acks */ "note-column-interface",
+/* acks */ "note-column-interface slur-interface",
/* reads */ "",
/* write */ "");
projects / lilypond.git / blobdiff