/*
- hyphen-engraver.cc -- implement Hyphen_engraver
+ This file is part of LilyPond, the GNU music typesetter.
- source file of the GNU LilyPond music typesetter
-
- (c) 1999--2004 Glen Prideaux <glenprideaux@iname.com>,
- Han-Wen Nienhuys <hanwen@cs.uu.nl>,
- Jan Nieuwenhuizen <janneke@gnu.org>
+ Copyright (C) 1999--2015 Glen Prideaux <glenprideaux@iname.com>,
+ Han-Wen Nienhuys <hanwen@xs4all.nl>,
+ 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/>.
*/
-#include "warn.hh"
-#include "item.hh"
#include "engraver.hh"
+#include "international.hh"
+#include "item.hh"
+#include "pointer-group-interface.hh"
#include "spanner.hh"
+#include "stream-event.hh"
+#include "warn.hh"
+
+#include "translator.icc"
class Hyphen_engraver : public Engraver
{
- Music *ev_;
+ Stream_event *ev_;
+ Stream_event *finished_ev_;
+
Spanner *hyphen_;
- Spanner *finished_hyphen_;
+ Spanner *finished_hyphen_;
+
public:
TRANSLATOR_DECLARATIONS (Hyphen_engraver);
protected:
- virtual void acknowledge_grob (Grob_info);
- virtual void finalize ();
- virtual bool try_music (Music*);
- virtual void stop_translation_timestep ();
- virtual void process_music ();
-private:
-
-};
+ void acknowledge_lyric_syllable (Grob_info);
+ void listen_hyphen (Stream_event *);
+ virtual void finalize ();
+ void stop_translation_timestep ();
+ void process_music ();
+};
-Hyphen_engraver::Hyphen_engraver ()
+Hyphen_engraver::Hyphen_engraver (Context *c)
+ : Engraver (c)
{
hyphen_ = 0;
finished_hyphen_ = 0;
+ finished_ev_ = 0;
ev_ = 0;
}
void
-Hyphen_engraver::acknowledge_grob (Grob_info i)
+Hyphen_engraver::acknowledge_lyric_syllable (Grob_info i)
{
- Item * item = dynamic_cast<Item*> (i.grob_);
- // -> text_item
- if (item && item->internal_has_interface (ly_symbol2scm ("lyric-syllable-interface")))
- {
- if (hyphen_)
- hyphen_->set_bound (LEFT, item);
+ Item *item = i.item ();
- if (finished_hyphen_)
- finished_hyphen_->set_bound (RIGHT, item);
- }
-}
+ if (!hyphen_)
+ hyphen_ = make_spanner ("LyricSpace", item->self_scm ());
+ if (hyphen_)
+ hyphen_->set_bound (LEFT, item);
-bool
-Hyphen_engraver::try_music (Music* r)
-{
- if (ev_)
- return false;
+ if (finished_hyphen_)
+ finished_hyphen_->set_bound (RIGHT, item);
+}
- ev_ = r;
- return true;
+void
+Hyphen_engraver::listen_hyphen (Stream_event *ev)
+{
+ ASSIGN_EVENT_ONCE (ev_, ev);
}
void
-completize_hyphen (Spanner* sp)
+completize_hyphen (Spanner *sp)
{
if (!sp->get_bound (RIGHT))
{
- SCM heads = sp->get_property ("heads");
- if (gh_pair_p (heads))
- {
- Item* it = dynamic_cast<Item*> (unsmob_grob (gh_car (heads)));
- if (it)
- sp->set_bound (RIGHT, it);
- }
+ extract_item_set (sp, "heads", heads);
+ if (heads.size ())
+ sp->set_bound (RIGHT, heads.back ());
}
}
-
-
void
Hyphen_engraver::finalize ()
{
completize_hyphen (hyphen_);
if (!hyphen_->get_bound (RIGHT))
- {
- hyphen_->warning (_ ("unterminated hyphen; removing"));
- hyphen_->suicide ();
- }
+ {
+ hyphen_->warning (_ ("removing unterminated hyphen"));
+ hyphen_->suicide ();
+ }
- typeset_grob (hyphen_);
hyphen_ = 0;
}
completize_hyphen (finished_hyphen_);
if (!finished_hyphen_->get_bound (RIGHT))
- {
- finished_hyphen_->warning (_("unterminated hyphen; removing"));
- finished_hyphen_->suicide ();
- }
- typeset_grob (finished_hyphen_);
- finished_hyphen_ =0;
+ {
+ if (finished_ev_)
+ finished_hyphen_->warning (_ ("unterminated hyphen; removing"));
+ finished_hyphen_->suicide ();
+ }
+ finished_hyphen_ = 0;
}
}
Hyphen_engraver::process_music ()
{
if (ev_)
- {
- hyphen_ = make_spanner ("LyricHyphen");
- announce_grob (hyphen_, ev_->self_scm ());
- }
+ hyphen_ = make_spanner ("LyricHyphen", ev_->self_scm ());
}
-
void
Hyphen_engraver::stop_translation_timestep ()
{
if (finished_hyphen_ && finished_hyphen_->get_bound (RIGHT))
{
- typeset_grob (finished_hyphen_);
finished_hyphen_ = 0;
+ finished_ev_ = 0;
}
if (finished_hyphen_ && hyphen_)
{
- programming_error ("Haven't finished hyphen yet.");
- typeset_grob (finished_hyphen_);
- finished_hyphen_ =0;
+ programming_error ("hyphen not finished yet");
+ finished_hyphen_ = 0;
+ finished_ev_ = 0;
}
-
+
if (hyphen_)
- finished_hyphen_ = hyphen_;
- hyphen_ = 0;
+ {
+ finished_hyphen_ = hyphen_;
+ finished_ev_ = ev_;
+ }
+ hyphen_ = 0;
ev_ = 0;
}
+void
+Hyphen_engraver::boot ()
+{
+ ADD_LISTENER (Hyphen_engraver, hyphen);
+ ADD_ACKNOWLEDGER (Hyphen_engraver, lyric_syllable);
+}
+
+ADD_TRANSLATOR (Hyphen_engraver,
+ /* doc */
+ "Create lyric hyphens and distance constraints between words.",
+
+ /* create */
+ "LyricHyphen "
+ "LyricSpace ",
+ /* read */
+ "",
-ENTER_DESCRIPTION (Hyphen_engraver,
-/* descr */ "Create lyric hyphens",
-/* creats*/ "LyricHyphen",
-/* accepts */ "hyphen-event",
-/* acks */ "lyric-syllable-interface",
-/* reads */ "",
-/* write */ "");
+ /* write */
+ ""
+ );
projects / lilypond.git / blobdiff