source file of the GNU LilyPond music typesetter
- (c) 1997--2002 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1997--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
#include "staff-symbol-referencer.hh"
#include "rhythmic-head.hh"
#include "stem.hh"
-#include "musical-request.hh"
+#include "event.hh"
#include "misc.hh"
#include "stem-tremolo.hh"
#include "item.hh"
-#include "translator-group.hh"
+#include "context.hh"
+
#include "engraver.hh"
*/
class Stem_engraver : public Engraver
{
- TRANSLATOR_DECLARATIONS(Stem_engraver);
+ TRANSLATOR_DECLARATIONS (Stem_engraver);
protected:
virtual void acknowledge_grob (Grob_info);
virtual void stop_translation_timestep ();
private:
Grob *stem_;
Grob *tremolo_;
- Rhythmic_req *rhythmic_req_;
- Tremolo_req* tremolo_req_;
+ Music *rhythmic_ev_;
+ Music* tremolo_ev_;
};
Stem_engraver::Stem_engraver ()
{
- tremolo_req_ = 0;
+ tremolo_ev_ = 0;
stem_ = 0;
tremolo_ = 0;
- rhythmic_req_ =0;
+ rhythmic_ev_ =0;
}
/* Reverted to the old method so chord tremolos work again. /MB
*/
int duration_log = 0;
- Rhythmic_req *rhythmic_req = dynamic_cast <Rhythmic_req *> (i.music_cause ());
- if (rhythmic_req)
- duration_log = unsmob_duration (rhythmic_req->get_mus_property ("duration"))-> duration_log ();
+
+ Music * m = i.music_cause ();
+ if (m->is_mus_type ("rhythmic-event"))
+ duration_log = unsmob_duration (m->get_property ("duration"))-> duration_log ();
if (!stem_)
{
- stem_ = new Item (get_property ("Stem"));
+ stem_ = make_item ("Stem");
- stem_->set_grob_property ("duration-log", gh_int2scm (duration_log));
+ stem_->set_property ("duration-log", gh_int2scm (duration_log));
- if (tremolo_req_)
+ if (tremolo_ev_)
{
/*
Stem tremolo is never applied to a note by default,
- is must me requested. But there is a default for the
+ is must me evuested. But there is a default for the
tremolo value:
c4:8 c c:
the first and last (quarter) note bothe get one tremolo flag.
*/
- int requested_type = gh_scm2int (tremolo_req_->get_mus_property ("tremolo-type"));
+ int requested_type = gh_scm2int (tremolo_ev_->get_property ("tremolo-type"));
SCM f = get_property ("tremoloFlags");
- if (!requested_type && gh_number_p (f))
- requested_type = gh_scm2int (f);
+ if (!requested_type)
+ if (gh_number_p (f))
+ requested_type = gh_scm2int (f);
+ else
+ requested_type = 8;
else
- daddy_trans_->set_property ("tremoloFlags", gh_int2scm (requested_type));
+ daddy_context_->set_property ("tremoloFlags", gh_int2scm (requested_type));
int tremolo_flags = intlog2 (requested_type) - 2
- (duration_log > 2 ? duration_log - 2 : 0);
if (tremolo_flags <= 0)
{
- tremolo_req_->origin()->warning (_("tremolo duration is too long"));
+ tremolo_ev_->origin ()->warning (_("tremolo duration is too long"));
tremolo_flags = 0;
}
if (tremolo_flags)
{
- tremolo_ = new Item (get_property ("StemTremolo"));
- announce_grob(tremolo_, tremolo_req_->self_scm());
+ tremolo_ = make_item ("StemTremolo");
+ announce_grob (tremolo_, tremolo_ev_->self_scm ());
/*
The number of tremolo flags is the number of flags of
the tremolo-type minus the number of flags of the note
itself.
*/
- tremolo_->set_grob_property ("flag-count",
- gh_int2scm (tremolo_flags));
+ tremolo_->set_property ("flag-count",
+ gh_int2scm (tremolo_flags));
tremolo_->set_parent (stem_, X_AXIS);
+ stem_->set_property ("tremolo-flag", tremolo_->self_scm ());
}
}
/*
We announce the cause of the head as cause of the stem.
The stem needs a rhythmic structure to fit it into a beam. */
- announce_grob(stem_, i.music_cause ()->self_scm());
+ announce_grob (stem_, i.music_cause ()->self_scm ());
}
if (Stem::duration_log (stem_) != duration_log)
{
- i.music_cause ()->origin ()->warning (_f ("Adding note head to incompatible stem (type = %d)", 1 << Stem::duration_log (stem_)));
+ i.music_cause ()->origin ()->warning (_f ("Adding note head to incompatible stem (type = %d)", 1 << Stem::duration_log (stem_))
+ + _f ("Don't you want polyphonic voices instead?")
+ );
}
Stem::add_head (stem_,h);
if (stem_)
{
+ /*
+ toDO: junk these properties.
+ */
SCM prop = get_property ("stemLeftBeamCount");
if (gh_number_p (prop))
{
Stem::set_beaming (stem_,gh_scm2int (prop),LEFT);
- daddy_trans_->unset_property (ly_symbol2scm ("stemLeftBeamCount"));
+ daddy_context_->unset_property (ly_symbol2scm ("stemLeftBeamCount"));
}
prop = get_property ("stemRightBeamCount");
if (gh_number_p (prop))
{
Stem::set_beaming (stem_,gh_scm2int (prop), RIGHT);
- daddy_trans_->unset_property (ly_symbol2scm ("stemRightBeamCount"));
+ daddy_context_->unset_property (ly_symbol2scm ("stemRightBeamCount"));
}
typeset_grob (stem_);
}
- tremolo_req_ = 0;
+ tremolo_ev_ = 0;
}
bool
Stem_engraver::try_music (Music* r)
{
- if (Tremolo_req* a = dynamic_cast <Tremolo_req *> (r))
+ if (r->is_mus_type ("tremolo-event"))
{
- tremolo_req_ = a;
+ tremolo_ev_ = r;
return true;
}
return false;
}
-ENTER_DESCRIPTION(Stem_engraver,
-/* descr */ "Create stems and single-stem tremolos. It also works together with
-the beam engraver for overriding beaming.",
+ENTER_DESCRIPTION (Stem_engraver,
+/* descr */ "Create stems and single-stem tremolos. It also works together with "
+"the beam engraver for overriding beaming.",
/* creats*/ "Stem StemTremolo",
-/* accepts */ "general-music",
+/* accepts */ "tremolo-event",
/* acks */ "rhythmic-head-interface",
/* reads */ "tremoloFlags stemLeftBeamCount stemRightBeamCount",
/* write */ "");