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/*
This file is part of LilyPond, the GNU music typesetter.
Copyright (C) 2013--2015 Mike Solomon <mike@mikesolomon.org>
Copyright (C) 2016 David Kastrup <dak@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/>.
*/
#ifndef SLUR_ENGRAVER_HH
#define SLUR_ENGRAVER_HH
#include "engraver.hh"
#include <map>
class Slur_engraver : public Engraver
{
protected:
struct Event_info {
Stream_event *slur_, *note_;
Event_info (Stream_event *slur, Stream_event *note)
: slur_ (slur), note_ (note)
{ }
};
// protected so that subclasses can see them
vector<Event_info> start_events_;
vector<Event_info> stop_events_;
typedef std::multimap<Stream_event *, Spanner *> Note_slurs;
Drul_array<Note_slurs> note_slurs_;
vector<Grob *> slurs_;
vector<Grob *> end_slurs_;
vector<Grob_info> objects_to_acknowledge_;
virtual SCM event_symbol () const;
virtual bool double_property () const;
virtual SCM grob_symbol () const;
virtual const char* object_name () const;
void acknowledge_note_column (Grob_info);
void acknowledge_script (Grob_info);
void listen_note (Stream_event *ev);
// A slur on an in-chord note is not actually announced as an event
// but rather produced by the note listener.
void listen_note_slur (Stream_event *ev, Stream_event *note);
void listen_slur (Stream_event *ev) { listen_note_slur (ev, 0); }
void acknowledge_extra_object (Grob_info);
void stop_translation_timestep ();
void process_music ();
bool can_create_slur (SCM, vsize, vsize *, Stream_event *);
void create_slur (SCM spanner_id, Event_info evi, Grob *g_cause, Direction dir, bool left_broken);
bool try_to_end (Event_info evi);
virtual void set_melisma (bool);
virtual void finalize ();
virtual void derived_mark () const;
public:
TRANSLATOR_DECLARATIONS (Slur_engraver);
};
#endif // SLUR_ENGRAVER_HH
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