/*
- trill-spanner-engraver.cc -- implement Trill_spanner_engraver
+ This file is part of LilyPond, the GNU music typesetter.
- source file of the GNU LilyPond music typesetter
+ Copyright (C) 2000--2014 Jan Nieuwenhuizen <janneke@gnu.org>
- (c) 2000--2004 Jan Nieuwenhuizen <janneke@gnu.org>
+ 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/>.
*/
/*
C&P from text-spanner.cc
- todo: ending should be detected automatically? a new note
- automatically is the end of the trill?
-
- */
+ automatically is the end of the trill?
+*/
+#include "engraver.hh"
+
+#include "international.hh"
#include "note-column.hh"
+#include "pointer-group-interface.hh"
#include "side-position-interface.hh"
-#include "engraver.hh"
+#include "stream-event.hh"
+#include "spanner.hh"
+
+#include "translator.icc"
class Trill_spanner_engraver : public Engraver
{
public:
- TRANSLATOR_DECLARATIONS (Trill_spanner_engraver);
+ TRANSLATOR_DECLARATIONS (Trill_spanner_engraver);
protected:
virtual void finalize ();
- virtual void acknowledge_grob (Grob_info);
- virtual bool try_music (Music *);
- virtual void stop_translation_timestep ();
- virtual void process_music ();
+ DECLARE_TRANSLATOR_LISTENER (trill_span);
+ DECLARE_ACKNOWLEDGER (note_column);
+
+ void stop_translation_timestep ();
+ void process_music ();
private:
Spanner *span_;
Spanner *finished_;
- Music *current_req_;
- Drul_array<Music*> req_drul_;
+ Stream_event *current_event_;
+ Drul_array<Stream_event *> event_drul_;
void typeset_all ();
};
-
Trill_spanner_engraver::Trill_spanner_engraver ()
{
finished_ = 0;
- current_req_ = 0;
- span_ =0;
- req_drul_[START] = 0;
- req_drul_[STOP] = 0;
+ current_event_ = 0;
+ span_ = 0;
+ event_drul_.set (0, 0);
}
-bool
-Trill_spanner_engraver::try_music (Music *m)
+IMPLEMENT_TRANSLATOR_LISTENER (Trill_spanner_engraver, trill_span);
+void
+Trill_spanner_engraver::listen_trill_span (Stream_event *ev)
{
- if (m->is_mus_type ("trill-span-event"))
- {
- Direction d = to_dir (m->get_property ("span-direction"));
- req_drul_[d] = m;
- return true;
- }
-
- return false;
+ Direction d = to_dir (ev->get_property ("span-direction"));
+ ASSIGN_EVENT_ONCE (event_drul_[d], ev);
}
void
-Trill_spanner_engraver::process_music ()
+Trill_spanner_engraver::acknowledge_note_column (Grob_info info)
{
- if (req_drul_[STOP])
+ if (span_)
{
- if (!span_)
- {
- req_drul_[STOP]->origin ()->warning (_ ("can't find start of trill spanner"));
- }
- else
- {
- finished_ = span_;
- span_ = 0;
- current_req_ = 0;
- }
+ Pointer_group_interface::add_grob (span_,
+ ly_symbol2scm ("note-columns"),
+ info.grob ());
+ if (!span_->get_bound (LEFT))
+ add_bound_item (span_, info.grob ());
}
-
- if (req_drul_[START])
+ else if (finished_)
{
- if (current_req_)
- {
- req_drul_[START]->origin ()->warning (_ ("already have a trill spanner"));
- }
- else
- {
- current_req_ = req_drul_[START];
- span_ = make_spanner ("TrillSpanner", req_drul_[START]->self_scm ());
- Side_position_interface::set_axis (span_, Y_AXIS);
- req_drul_[START] = 0;
- }
+ Pointer_group_interface::add_grob (finished_, ly_symbol2scm ("note-columns"),
+ info.grob ());
+ if (!finished_->get_bound (RIGHT))
+ add_bound_item (finished_, info.grob ());
}
}
void
-Trill_spanner_engraver::acknowledge_grob (Grob_info info)
+Trill_spanner_engraver::process_music ()
{
- Spanner * spans[2] ={span_, finished_};
- for (int i = 0; i < 2 ; i++)
+ if (span_
+ && (event_drul_[STOP] || event_drul_[START]))
+ {
+ Stream_event *ender = event_drul_[STOP];
+ if (!ender)
+ ender = event_drul_[START];
+ finished_ = span_;
+ announce_end_grob (finished_, ender->self_scm ());
+ span_ = 0;
+ current_event_ = 0;
+ }
+
+ if (event_drul_[START])
{
- if (spans[i] && Note_column::has_interface (info.grob_))
- {
- Side_position_interface::add_support (spans[i], info.grob_);
- add_bound_item (spans[i], dynamic_cast<Item*> (info.grob_));
- }
+ current_event_ = event_drul_[START];
+ span_ = make_spanner ("TrillSpanner", event_drul_[START]->self_scm ());
+ Side_position_interface::set_axis (span_, Y_AXIS);
}
}
void
Trill_spanner_engraver::typeset_all ()
-{
+{
if (finished_)
{
if (!finished_->get_bound (RIGHT))
- {
- Grob* e = unsmob_grob (get_property ("currentMusicalColumn"));
- finished_->set_bound (RIGHT, e);
- }
+ {
+ Grob *e = unsmob_grob (get_property ("currentMusicalColumn"));
+ finished_->set_bound (RIGHT, e);
+ }
finished_ = 0;
}
}
{
if (span_ && !span_->get_bound (LEFT))
{
- Grob* e = unsmob_grob (get_property ("currentMusicalColumn"));
+ Grob *e = unsmob_grob (get_property ("currentMusicalColumn"));
span_->set_bound (LEFT, e);
}
typeset_all ();
- req_drul_[START] = 0;
- req_drul_[STOP] = 0;
+ event_drul_.set (0, 0);
}
void
typeset_all ();
if (span_)
{
- current_req_->origin ()->warning (_ ("unterminated trill spanner"));
- span_->suicide ();
- span_ = 0;
+ Grob *e = unsmob_grob (get_property ("currentCommandColumn"));
+ span_->set_bound (RIGHT, e);
}
}
-ENTER_DESCRIPTION (Trill_spanner_engraver,
-/* descr */ "Create trill spanner from a Music.",
-/* creats*/ "TrillSpanner",
-/* accepts */ "trill-span-event",
-/* acks */ "note-column-interface",
-/* reads */ "",
-/* write */ "");
+ADD_ACKNOWLEDGER (Trill_spanner_engraver, note_column);
+
+ADD_TRANSLATOR (Trill_spanner_engraver,
+ /* doc */
+ "Create trill spanner from an event.",
+
+ /* create */
+ "TrillSpanner ",
+
+ /* read */
+ "currentCommandColumn "
+ "currentMusicalColumn ",
+
+ /* write */
+ ""
+ );
projects / lilypond.git / blobdiff