source file of the GNU LilyPond music typesetter
- (c) 1999--2003 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1999--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
#include "spanner.hh"
#include "axis-group-interface.hh"
#include "engraver.hh"
#include "engraver-group-engraver.hh"
+#include "warn.hh"
/**
Put stuff in a Spanner with an Axis_group_interface.
protected:
Spanner *staffline_;
Link_array<Grob> elts_;
- virtual void initialize ();
+ virtual void process_music ();
virtual void finalize ();
virtual void acknowledge_grob (Grob_info);
virtual void process_acknowledged_grobs ();
- virtual Spanner* get_spanner () const;
+ virtual Spanner* get_spanner () ;
virtual void add_element (Grob*) ;
public:
-TRANSLATOR_DECLARATIONS(Axis_group_engraver );
+ TRANSLATOR_DECLARATIONS(Axis_group_engraver);
};
-
-
Axis_group_engraver::Axis_group_engraver ()
{
staffline_ = 0;
}
void
-Axis_group_engraver::initialize ()
+Axis_group_engraver::process_music ()
{
- staffline_ = get_spanner ();
+ if (!staffline_)
+ {
+ staffline_ = get_spanner ();
- Grob * it = unsmob_grob (get_property ("currentCommandColumn"));
+ Grob * it = unsmob_grob (get_property ("currentCommandColumn"));
- staffline_->set_bound (LEFT,it);
+ staffline_->set_bound (LEFT,it);
- announce_grob(staffline_, SCM_EOL);
-}
+ announce_grob(staffline_, SCM_EOL);
+ }
+}
Spanner*
-Axis_group_engraver::get_spanner () const
+Axis_group_engraver::get_spanner ()
{
- return new Spanner (get_property ("VerticalAxisGroup"));
+ return make_spanner ("VerticalAxisGroup");
}
+/*
+ TODO: should we junk minimumVerticalExtent/extraVerticalExtent ?
+ */
+
void
Axis_group_engraver::finalize ()
{
- String type = get_daddy_grav ()->type_string_ ;
+ if (!staffline_)
+ return ;
+
+ String type = get_daddy_grav ()->context_name ();
SCM dims = get_property ("verticalExtent");
if (gh_pair_p (dims) && gh_number_p (ly_car (dims))
{
Grob *par = elts_[i]->get_parent (Y_AXIS);
- if ((!par || !Axis_group_interface::has_interface (par))
- && ! elts_[i]->empty_b (Y_AXIS))
- add_element (elts_[i]);
+ if (!par || !Axis_group_interface::has_interface (par))
+ if (elts_[i]->is_empty (Y_AXIS))
+ {
+ /*
+ We have to do _something_, otherwise staff objects will
+ end up with System as parent.
+
+ */
+ elts_[i]->set_parent (staffline_, Y_AXIS);
+ }
+ else
+ add_element (elts_[i]);
}
elts_.clear ();
}
Axis_group_interface::add_element (staffline_, e);
}
-////////////////////////////////////////////////////////
-// maybenot such a good idea after all., to put classes in .cc
+/****************************************************************/
+
+/*
+
+ maybenot such a good idea after all., to put class declarations in
+ .cc
+
+*/
#include "hara-kiri-group-spanner.hh"
#include "rhythmic-head.hh"
class Hara_kiri_engraver : public Axis_group_engraver
{
protected:
- virtual Spanner*get_spanner ()const;
+ virtual Spanner*get_spanner ();
virtual void acknowledge_grob (Grob_info);
virtual void add_element (Grob *e);
public:
Spanner*
-Hara_kiri_engraver::get_spanner () const
+Hara_kiri_engraver::get_spanner ()
{
- Spanner * sp = new Spanner (get_property ("HaraKiriVerticalGroup"));
-
+ Spanner * sp = make_spanner ("RemoveEmptyVerticalGroup");
+
return sp;
}
Hara_kiri_engraver::acknowledge_grob (Grob_info i)
{
Axis_group_engraver::acknowledge_grob (i);
- if (Rhythmic_head::has_interface (i.grob_)
- || i.grob_->internal_has_interface (ly_symbol2scm ("lyric-syllable-interface")))
+ if (i.grob_->internal_has_interface (ly_symbol2scm ("rhythmic-grob-interface"))
+ || i.grob_->internal_has_interface (ly_symbol2scm ("lyric-interface"))
+ )
{
Hara_kiri_group_spanner::add_interesting_item (staffline_, i.grob_);
}
}
-Hara_kiri_engraver::Hara_kiri_engraver(){}
+
+Hara_kiri_engraver::Hara_kiri_engraver()
+{
+}
ENTER_DESCRIPTION(Hara_kiri_engraver,
/* descr */ "Like Axis_group_engraver, but make a hara kiri spanner, and add "
"interesting items (ie. note heads, lyric syllables and normal rests) ",
-/* creats*/ "HaraKiriVerticalGroup",
+/* creats*/ "RemoveEmptyVerticalGroup",
/* accepts */ "",
/* acks */ "grob-interface",
/* reads */ "",