source file of the GNU LilyPond music typesetter
- (c) 1997--1998 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1997--1999 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
#include "stem-engraver.hh"
#include "musical-request.hh"
#include "duration-convert.hh"
#include "misc.hh"
-#include "abbrev.hh"
+#include "stem-tremolo.hh"
+#include "staff-info.hh"
+#include "translator-group.hh"
Stem_engraver::Stem_engraver()
{
stem_p_ = 0;
abbrev_p_ = 0;
default_abbrev_i_ = 16;
- dir_ = CENTER;
+ rhythmic_req_l_ =0;
}
void
Stem_engraver::do_creation_processing ()
{
- Scalar prop = get_property ("abbrev");
- if (prop.isnum_b ())
+ SCM prop = get_property ("abbrev", 0);
+ if (SCM_NUMBERP(prop))
{
- default_abbrev_i_ = prop;
+ default_abbrev_i_ = gh_scm2int (prop);
}
}
void
Stem_engraver::acknowledge_element(Score_element_info i)
{
- if (i.elem_l_->is_type_b (Rhythmic_head::static_name()))
+ if (Rhythmic_head * h = dynamic_cast<Rhythmic_head *> (i.elem_l_))
{
- Rhythmic_head *h = (Rhythmic_head*) dynamic_cast <Item *> (i.elem_l_);
+ if (h->stem_l_)
+ return;
+
+ Rhythmic_req * r = dynamic_cast <Rhythmic_req *> (i.req_l_);
+ int duration_log = r->duration_.durlog_i_;
if (!stem_p_)
{
- Rhythmic_req * r = dynamic_cast <Rhythmic_req *> (i.req_l_);
stem_p_ = new Stem;
- int durlog_i = r->duration_.durlog_i_;
- stem_p_->flag_i_ = durlog_i;
+ stem_p_->flag_i_ = duration_log;
-
if (abbrev_req_l_)
{
/*
suggests typing of:
- c8:16 c: c: c:
+ c8:16 c: c: c:
hmm, which isn't so bad?
*/
int t = abbrev_req_l_->type_i_;
if (t)
{
- abbrev_p_ = new Abbreviation;
+ abbrev_p_ = new Stem_tremolo;
announce_element (Score_element_info (abbrev_p_, abbrev_req_l_));
- abbrev_p_->abbrev_flags_i_ =intlog2 (t) - (durlog_i>? 2);
+ abbrev_p_->abbrev_flags_i_ =intlog2 (t) - (duration_log>? 2);
}
}
// must give the request, to preserve the rhythmic info.
announce_element (Score_element_info (stem_p_, r));
}
+
+ if (stem_p_->flag_i_ != duration_log)
+ {
+ r->warning (_f ("Adding note head to incompatible stem (type = %d)", 1 << stem_p_->flag_i_));
+ }
+
stem_p_->add_head (h);
}
}
typeset_element (abbrev_p_);
abbrev_p_ = 0;
}
+
if (stem_p_)
{
- Scalar prop = get_property ("ydirection");
- dir_ = prop.isnum_b () ? (Direction)int(prop) : CENTER;
- if (dir_)
+ SCM prop = get_property ("verticalDirection", 0);
+ if (SCM_NUMBERP(prop))
+ {
+ stem_p_->dir_ = to_dir (prop);
+ stem_p_->set_elt_property (dir_forced_scm_sym, SCM_BOOL_T);
+ }
+
+ Translator_group* which;
+ prop = get_property ("stemLeftBeamCount", &which);
+ if (SCM_NUMBERP(prop))
+ {
+ stem_p_->beams_i_drul_[LEFT] = gh_scm2int (prop);
+ ((Translator_group*)which)->set_property ("stemLeftBeamCount", SCM_UNDEFINED);
+ }
+ prop = get_property ("stemRightBeamCount", &which);
+ if (SCM_NUMBERP(prop))
+ {
+ stem_p_->beams_i_drul_[RIGHT] = gh_scm2int (prop);
+ ((Translator_group*)which)->set_property ("stemRightBeamCount", SCM_UNDEFINED);
+ }
+
+ prop = get_property ("stemLength", 0);
+ if (SCM_NUMBERP(prop))
{
- stem_p_->dir_ = dir_;
- stem_p_->dir_forced_b_ = true;
+ stem_p_->set_elt_property (length_scm_sym, prop);
}
+ prop = get_property ("stemStyle", 0);
+ if (gh_string_p (prop))
+ {
+ stem_p_->set_elt_property (style_scm_sym, prop);
+ }
+
+ prop = get_property ("noStemExtend", 0);
+ if (gh_boolean_p (prop) && gh_scm2bool (prop))
+ {
+ stem_p_->set_elt_property (no_stem_extend_scm_sym, prop);
+ }
+
typeset_element(stem_p_);
stem_p_ = 0;
}
}
bool
-Stem_engraver::do_try_request (Request* r)
+Stem_engraver::do_try_music (Music* r)
{
- Musical_req* mus_l = dynamic_cast <Musical_req *> (r);
- if (!mus_l)
- return false;
-
- Abbreviation_req* a = dynamic_cast <Abbreviation_req *> (mus_l);
- if (!a)
- return false;
-
- abbrev_req_l_ = a;
-
- return true;
+ if (Tremolo_req* a = dynamic_cast <Tremolo_req *> (r))
+ {
+ abbrev_req_l_ = a;
+ return true;
+ }
+ return false;
}
-IMPLEMENT_IS_TYPE_B1(Stem_engraver, Engraver);
+
ADD_THIS_TRANSLATOR(Stem_engraver);