/*
- rhythmic-column-grav.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--1999 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 "rhythmic-column-engraver.hh"
-#include "note-head.hh"
+#include "engraver.hh"
+#include "rhythmic-head.hh"
#include "stem.hh"
#include "note-column.hh"
-#include "script.hh"
+#include "item.hh"
#include "dot-column.hh"
-#include "musical-request.hh"
+#include "pointer-group-interface.hh"
+
+#include "translator.icc"
+
+/*
+ this engraver glues together stems, rests and note heads into a NoteColumn
+ grob.
+
+ It also generates spacing objects. Originally, we have tried to
+ have the spacing functionality at different levels.
+
+ - by simply using the sequence of Separation-item as
+ spacing-sequences (at staff level). Unfortunately, this fucks up if
+ there are different kinds of tuplets in different voices (8th and
+ 8ths triplets combined made the program believe there were 1/12 th
+ notes.).
+
+ Doing it in a separate engraver using timing info is generally
+ complicated (start/end time management), and fucks up if a voice
+ changes staff.
+
+ Now we do it from here again. This has the problem that voices can
+ appear and disappear at will, leaving lots of loose ends (the note
+ spacing engraver don't know where to connect the last note of the
+ voice on the right with), but we don't complain about those, and let
+ the default spacing do its work.
+*/
-Rhythmic_column_engraver::Rhythmic_column_engraver()
+class Rhythmic_column_engraver : public Engraver
+{
+ vector<Grob *> rheads_;
+ Grob *stem_;
+ Grob *flag_;
+ Grob *note_column_;
+
+ TRANSLATOR_DECLARATIONS (Rhythmic_column_engraver);
+protected:
+
+ void acknowledge_stem (Grob_info);
+ void acknowledge_flag (Grob_info);
+ void acknowledge_rhythmic_head (Grob_info);
+ void process_acknowledged ();
+ void stop_translation_timestep ();
+};
+
+Rhythmic_column_engraver::Rhythmic_column_engraver (Context *c)
+ : Engraver (c)
{
- stem_l_ =0;
- ncol_p_=0;
- dotcol_l_ =0;
-}
+ stem_ = 0;
+ flag_ = 0;
+ note_column_ = 0;
+}
void
Rhythmic_column_engraver::process_acknowledged ()
{
- if (rhead_l_arr_.size ())
+ if (rheads_.size ())
{
- if (!ncol_p_)
- {
- ncol_p_ = new Note_column;
- announce_element (Score_element_info (ncol_p_, 0));
- }
-
- for (int i=0; i < rhead_l_arr_.size (); i++)
- {
- ncol_p_->add_head (rhead_l_arr_[i]);
- }
- rhead_l_arr_.set_size (0);
+ if (!note_column_)
+ 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 (ncol_p_)
+ if (note_column_)
{
- if (dotcol_l_)
- {
- ncol_p_->set_dotcol (dotcol_l_);
- }
-
- if (stem_l_)
- {
- ncol_p_->set_stem (stem_l_);
- stem_l_ = 0;
- }
-
- for (int i=0; i < script_l_arr_.size(); i++)
- {
- if (ncol_p_)
- ncol_p_->add_script (script_l_arr_[i]);
- }
-
- script_l_arr_.clear();
+ if (stem_
+ && !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_element (Score_element_info i)
+Rhythmic_column_engraver::acknowledge_stem (Grob_info i)
{
- Item * item = dynamic_cast <Item *> (i.elem_l_);
- if (!item)
- return;
- if (Script *s=dynamic_cast<Script *> (item))
- {
- if (i.req_l_ && dynamic_cast <Musical_req *> (i.req_l_))
- {
- script_l_arr_.push (s);
- }
- }
- else if (Stem*s=dynamic_cast<Stem *> (item))
- {
- stem_l_ = s;
- }
- else if (Rhythmic_head*r=dynamic_cast<Rhythmic_head *> (item))
- {
- rhead_l_arr_.push (r);
- }
- else if (Dot_column*d =dynamic_cast<Dot_column *> (item))
- {
- dotcol_l_ = d;
- }
+ stem_ = i.grob ();
}
void
-Rhythmic_column_engraver::do_pre_move_processing()
+Rhythmic_column_engraver::acknowledge_flag (Grob_info i)
{
- if (ncol_p_)
- {
- if (! ncol_p_->h_shift_b_)
- // egcs
- ncol_p_->h_shift_b_ = get_property ("hshift", 0).operator bool ();
- if (! ncol_p_->dir_)
- ncol_p_->dir_ =(Direction) int(get_property ("ydirection", 0));
-
- typeset_element (ncol_p_);
- ncol_p_ =0;
- }
+ flag_ = i.grob ();
+}
+
+void
+Rhythmic_column_engraver::acknowledge_rhythmic_head (Grob_info i)
+{
+ rheads_.push_back (i.grob ());
}
void
-Rhythmic_column_engraver::do_post_move_processing()
+Rhythmic_column_engraver::stop_translation_timestep ()
{
- script_l_arr_.clear();
- dotcol_l_ =0;
- stem_l_ =0;
+ note_column_ = 0;
+ stem_ = 0;
+ flag_ = 0;
}
+void
+Rhythmic_column_engraver::boot ()
+{
+ ADD_ACKNOWLEDGER (Rhythmic_column_engraver, stem);
+ ADD_ACKNOWLEDGER (Rhythmic_column_engraver, flag);
+ ADD_ACKNOWLEDGER (Rhythmic_column_engraver, rhythmic_head);
+}
+
+ADD_TRANSLATOR (Rhythmic_column_engraver,
+ /* doc */
+ "Generate @code{NoteColumn}, an object that groups stems,"
+ " note heads, and rests.",
+ /* create */
+ "NoteColumn ",
+ /* read */
+ "",
-ADD_THIS_TRANSLATOR(Rhythmic_column_engraver);
+ /* write */
+ ""
+ );
projects / lilypond.git / blobdiff