source file of the GNU LilyPond music typesetter
- (c) 1997--2001 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1997--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
#include "stem.hh"
#include "note-column.hh"
#include "dot-column.hh"
-#include "musical-request.hh"
+#include "event.hh"
#include "item.hh"
#include "group-interface.hh"
class Rhythmic_column_engraver :public Engraver
{
- Link_array<Grob> rhead_l_arr_;
- Grob * stem_l_;
+ Link_array<Grob> rheads_;
+ Grob * stem_;
Grob * note_column_;
- Grob * dotcol_l_;
+ Grob * dotcol_;
Grob * last_spacing_;
Grob * spacing_;
protected:
virtual void acknowledge_grob (Grob_info);
- virtual void create_grobs ();
+ virtual void process_acknowledged_grobs ();
virtual void stop_translation_timestep ();
- virtual void start_translation_timestep ();
};
spacing_ =0 ;
last_spacing_ = 0;
- stem_l_ =0;
+ stem_ =0;
note_column_=0;
- dotcol_l_ =0;
+ dotcol_ =0;
}
void
-Rhythmic_column_engraver::create_grobs ()
+Rhythmic_column_engraver::process_acknowledged_grobs ()
{
- if (rhead_l_arr_.size ())
+ if (rheads_.size ())
{
if (!note_column_)
{
- note_column_ = new Item (get_property ("NoteColumn"));
- Note_column::set_interface (note_column_);
- announce_grob (note_column_, 0);
+ note_column_ = make_item ("NoteColumn");
+ announce_grob(note_column_, rheads_[0]->self_scm ());
+ spacing_ = make_item ("NoteSpacing");
+ spacing_->set_grob_property ("left-items", gh_cons (note_column_->self_scm (), SCM_EOL));
- spacing_ = new Item (get_property ("NoteSpacing"));
- spacing_->set_grob_property ("left-items", gh_cons (note_column_->self_scm (), SCM_EOL));
- announce_grob (spacing_, 0);
- if (last_spacing_)
- {
- Pointer_group_interface::add_grob (last_spacing_,
- ly_symbol2scm ("right-items" ),
- note_column_);
- }
+ announce_grob (spacing_, SCM_EOL);
+
+ if (last_spacing_)
+ {
+ Pointer_group_interface::add_grob (last_spacing_,
+ ly_symbol2scm ("right-items" ),
+ note_column_);
+ }
}
- for (int i=0; i < rhead_l_arr_.size (); i++)
+ for (int i=0; i < rheads_.size (); i++)
{
- if (!rhead_l_arr_[i]->get_parent (X_AXIS))
- Note_column::add_head (note_column_, rhead_l_arr_[i]);
+ if (!rheads_[i]->get_parent (X_AXIS))
+ Note_column::add_head (note_column_, rheads_[i]);
}
- rhead_l_arr_.set_size (0);
+ rheads_.set_size (0);
}
if (note_column_)
{
- if (dotcol_l_
- && !dotcol_l_->get_parent (X_AXIS))
+ if (dotcol_
+ && !dotcol_->get_parent (X_AXIS))
{
- Note_column::set_dotcol (note_column_, dotcol_l_);
+ Note_column::set_dotcol (note_column_, dotcol_);
}
- if (stem_l_
- && !stem_l_->get_parent (X_AXIS))
+ if (stem_
+ && !stem_->get_parent (X_AXIS))
{
- Note_column::set_stem (note_column_, stem_l_);
- stem_l_ = 0;
+ Note_column::set_stem (note_column_, stem_);
+ stem_ = 0;
}
}
void
Rhythmic_column_engraver::acknowledge_grob (Grob_info i)
{
- Item * item = dynamic_cast <Item *> (i.grob_l_);
- if (item && Stem::has_interface (item))
+ Item * item = dynamic_cast <Item *> (i.grob_);
+ if (!item || item->get_parent (X_AXIS))
+ return ;
+ if (Stem::has_interface (item))
{
- stem_l_ = item;
+ stem_ = item;
}
- else if (item && Rhythmic_head::has_interface (item))
+ else if (Rhythmic_head::has_interface (item))
{
- rhead_l_arr_.push (item);
+ rheads_.push (item);
}
- else if (item && Dot_column::has_interface (item))
+ else if (Dot_column::has_interface (item))
{
- dotcol_l_ = item;
+ dotcol_ = item;
}
}
last_spacing_ = spacing_;
spacing_ =0;
}
-}
-
-void
-Rhythmic_column_engraver::start_translation_timestep ()
-{
- dotcol_l_ =0;
- stem_l_ =0;
+
+ dotcol_ =0;
+ stem_ =0;
}
ENTER_DESCRIPTION(Rhythmic_column_engraver,
/* descr */ "Generates NoteColumn, an objects that groups stems, noteheads and rests.",
/* creats*/ "NoteColumn NoteSpacing",
-/* acks */ "stem-interface rhythmic-head-interface dot-column-interface",
+/* accepts */ "",
+/* acks */ "stem-interface rhythmic-head-interface dot-column-interface",
/* reads */ "",
/* write */ "");