source file of the GNU LilyPond music typesetter
- (c) 1997--2003 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1997--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
#include "staff-symbol-referencer.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_;
- Music *rhythmic_req_;
- Music* 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;
}
Music * m = i.music_cause ();
if (m->is_mus_type ("rhythmic-event"))
- duration_log = unsmob_duration (m->get_mus_property ("duration"))-> duration_log ();
+ duration_log = unsmob_duration (m->get_property ("duration"))-> duration_log ();
if (!stem_)
{
- stem_ = new Item (get_property ("Stem"));
+ /*
+ We announce the cause of the head as cause of the stem.
+ The stem needs a rhythmic structure to fit it into a beam. */
+ stem_ = make_item ("Stem",i.music_cause ()->self_scm ());
- stem_->set_grob_property ("duration-log", gh_int2scm (duration_log));
+ stem_->set_property ("duration-log", scm_int2num (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 = ly_scm2int (tremolo_ev_->get_property ("tremolo-type"));
SCM f = get_property ("tremoloFlags");
if (!requested_type)
- if (gh_number_p (f))
- requested_type = gh_scm2int (f);
+ if (ly_c_number_p (f))
+ requested_type = ly_scm2int (f);
else
requested_type = 8;
else
- daddy_trans_->set_property ("tremoloFlags", gh_int2scm (requested_type));
+ context ()->set_property ("tremoloFlags", scm_int2num (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", 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",
+ scm_int2num (tremolo_flags));
tremolo_->set_parent (stem_, X_AXIS);
+ stem_->set_property ("tremolo-flag", tremolo_->self_scm ());
+ tremolo_->set_property ("stem",
+ stem_->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());
}
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);
void
Stem_engraver::stop_translation_timestep ()
{
- if (tremolo_)
- {
- Stem_tremolo::set_stem (tremolo_, stem_);
- typeset_grob (tremolo_);
- tremolo_ = 0;
- }
+ tremolo_ = 0;
if (stem_)
{
+ /*
+ toDO: junk these properties.
+ */
SCM prop = get_property ("stemLeftBeamCount");
- if (gh_number_p (prop))
+ if (ly_c_number_p (prop))
{
- Stem::set_beaming (stem_,gh_scm2int (prop),LEFT);
- daddy_trans_->unset_property (ly_symbol2scm ("stemLeftBeamCount"));
+ Stem::set_beaming (stem_,ly_scm2int (prop),LEFT);
+ context ()->unset_property (ly_symbol2scm ("stemLeftBeamCount"));
}
prop = get_property ("stemRightBeamCount");
- if (gh_number_p (prop))
+ if (ly_c_number_p (prop))
{
- Stem::set_beaming (stem_,gh_scm2int (prop), RIGHT);
- daddy_trans_->unset_property (ly_symbol2scm ("stemRightBeamCount"));
+ Stem::set_beaming (stem_,ly_scm2int (prop), RIGHT);
+ context ()->unset_property (ly_symbol2scm ("stemRightBeamCount"));
}
- typeset_grob (stem_);
+
stem_ = 0;
}
- tremolo_req_ = 0;
+ tremolo_ev_ = 0;
}
bool
{
if (r->is_mus_type ("tremolo-event"))
{
- tremolo_req_ = r;
+ tremolo_ev_ = r;
return true;
}
return false;
}
-ENTER_DESCRIPTION(Stem_engraver,
+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",