/*
- rhythmic-column-engraver.cc -- implement Rhythmic_column_engraver
+ This file is part of LilyPond, the GNU music typesetter.
- source file of the GNU LilyPond music typesetter
+ Copyright (C) 1997--2015 Han-Wen Nienhuys <hanwen@xs4all.nl>
- (c) 1997--2005 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ LilyPond is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ LilyPond is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
*/
#include "engraver.hh"
#include "rhythmic-head.hh"
#include "stem.hh"
#include "note-column.hh"
+#include "item.hh"
#include "dot-column.hh"
#include "pointer-group-interface.hh"
+#include "translator.icc"
+
/*
this engraver glues together stems, rests and note heads into a NoteColumn
grob.
class Rhythmic_column_engraver : public Engraver
{
- Link_array<Grob> rheads_;
+ vector<Grob *> rheads_;
Grob *stem_;
+ Grob *flag_;
Grob *note_column_;
- Grob *dotcol_;
-
- Grob *last_spacing_;
- Grob *spacing_;
TRANSLATOR_DECLARATIONS (Rhythmic_column_engraver);
protected:
- virtual void acknowledge_grob (Grob_info);
- virtual void process_acknowledged_grobs ();
- virtual void stop_translation_timestep ();
+ DECLARE_ACKNOWLEDGER (stem);
+ DECLARE_ACKNOWLEDGER (flag);
+ DECLARE_ACKNOWLEDGER (rhythmic_head);
+ void process_acknowledged ();
+ void stop_translation_timestep ();
};
Rhythmic_column_engraver::Rhythmic_column_engraver ()
{
- spacing_ = 0;
- last_spacing_ = 0;
stem_ = 0;
+ flag_ = 0;
note_column_ = 0;
- dotcol_ = 0;
}
void
-Rhythmic_column_engraver::process_acknowledged_grobs ()
+Rhythmic_column_engraver::process_acknowledged ()
{
if (rheads_.size ())
{
if (!note_column_)
- {
- note_column_ = make_item ("NoteColumn", rheads_[0]->self_scm ());
-
- spacing_ = make_item ("NoteSpacing", SCM_EOL);
- spacing_->set_object ("left-items", scm_cons (note_column_->self_scm (), SCM_EOL));
-
- if (last_spacing_)
- {
- Pointer_group_interface::add_grob (last_spacing_,
- ly_symbol2scm ("right-items"),
- note_column_);
- }
- }
-
- for (int i = 0; i < rheads_.size (); i++)
- {
- if (!rheads_[i]->get_parent (X_AXIS))
- Note_column::add_head (note_column_, rheads_[i]);
- }
- rheads_.set_size (0);
+ note_column_ = make_item ("NoteColumn", rheads_[0]->self_scm ());
+
+ for (vsize i = 0; i < rheads_.size (); i++)
+ if (!rheads_[i]->get_parent (X_AXIS))
+ Note_column::add_head (note_column_, rheads_[i]);
+
+ rheads_.resize (0);
}
if (note_column_)
{
- if (dotcol_
- && !dotcol_->get_parent (X_AXIS))
- {
- Note_column::set_dotcol (note_column_, dotcol_);
- }
-
if (stem_
- && !stem_->get_parent (X_AXIS))
- {
- Note_column::set_stem (note_column_, stem_);
- stem_ = 0;
- }
+ && !stem_->get_parent (X_AXIS))
+ {
+ Note_column::set_stem (note_column_, stem_);
+ stem_ = 0;
+ }
+
+ if (flag_)
+ {
+ Pointer_group_interface::add_grob (note_column_, ly_symbol2scm ("elements"), flag_);
+ flag_ = 0;
+ }
}
}
void
-Rhythmic_column_engraver::acknowledge_grob (Grob_info i)
+Rhythmic_column_engraver::acknowledge_stem (Grob_info i)
{
- Item *item = dynamic_cast<Item *> (i.grob ());
- if (!item || item->get_parent (X_AXIS))
- return;
- if (Stem::has_interface (item))
- {
- stem_ = item;
- }
- else if (Rhythmic_head::has_interface (item))
- {
- rheads_.push (item);
- }
- else if (Dot_column::has_interface (item))
- {
- dotcol_ = item;
- }
+ stem_ = i.grob ();
}
void
-Rhythmic_column_engraver::stop_translation_timestep ()
+Rhythmic_column_engraver::acknowledge_flag (Grob_info i)
{
- note_column_ = 0;
+ flag_ = i.grob ();
+}
- if (spacing_)
- {
- last_spacing_ = spacing_;
- spacing_ = 0;
- }
+void
+Rhythmic_column_engraver::acknowledge_rhythmic_head (Grob_info i)
+{
+ rheads_.push_back (i.grob ());
+}
- dotcol_ = 0;
+void
+Rhythmic_column_engraver::stop_translation_timestep ()
+{
+ note_column_ = 0;
stem_ = 0;
+ flag_ = 0;
}
+ADD_ACKNOWLEDGER (Rhythmic_column_engraver, stem);
+ADD_ACKNOWLEDGER (Rhythmic_column_engraver, flag);
+ADD_ACKNOWLEDGER (Rhythmic_column_engraver, rhythmic_head);
+
ADD_TRANSLATOR (Rhythmic_column_engraver,
- /* descr */ "Generates NoteColumn, an objects that groups stems, noteheads and rests.",
- /* creats*/ "NoteColumn NoteSpacing",
- /* accepts */ "",
- /* acks */ "stem-interface rhythmic-head-interface dot-column-interface",
- /* reads */ "",
- /* write */ "");
+ /* doc */
+ "Generate @code{NoteColumn}, an object that groups stems,"
+ " note heads, and rests.",
+
+ /* create */
+ "NoteColumn ",
+
+ /* read */
+ "",
+
+ /* write */
+ ""
+ );