/*
- slur-engraver.cc -- implement Slur_engraver
+ This file is part of LilyPond, the GNU music typesetter.
- (c) 1997--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ Copyright (C) 1997--2012 Han-Wen Nienhuys <hanwen@xs4all.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 "event.hh"
-#include "slur.hh"
-#include "note-column.hh"
+#include "engraver.hh"
+
#include "context.hh"
#include "directional-element-interface.hh"
-#include "engraver.hh"
+#include "international.hh"
+#include "note-column.hh"
+#include "slur.hh"
+#include "slur-proto-engraver.hh"
#include "spanner.hh"
-#include "tie.hh"
-#include "input.hh"
-/*
- It is possible that a slur starts and ends on the same note. At
- least, it is for phrasing slurs: a note can be both beginning and
- ending of a phrase.
-*/
+#include "stream-event.hh"
+#include "warn.hh"
-class Slur_engraver : public Engraver
-{
- Drul_array<Music *> events_;
- Music * running_slur_start_;
- Link_array<Grob> slurs_;
- Link_array<Grob> end_slurs_;
+#include "translator.icc"
- void set_melisma (bool);
+class Slur_engraver : public Slur_proto_engraver
+{
+ virtual void set_melisma (bool);
protected:
- virtual bool try_music (Music*);
- virtual void acknowledge_grob (Grob_info);
- virtual void stop_translation_timestep ();
- virtual void finalize ();
- virtual void process_music ();
+ DECLARE_TRANSLATOR_LISTENER (slur);
public:
TRANSLATOR_DECLARATIONS (Slur_engraver);
};
-Slur_engraver::Slur_engraver ()
+Slur_engraver::Slur_engraver () :
+ Slur_proto_engraver ("doubleSlurs", "Slur", "slur", "slur-event")
{
- events_[START] =events_[STOP] = 0;
-}
-
-bool
-Slur_engraver::try_music (Music *m)
-{
- if (m->is_mus_type ("slur-event"))
- {
- Direction d = to_dir (m->get_property ("span-direction"));
- if (d == START)
- {
- events_[START] = m;
- return true;
- }
- else if (d == STOP)
- {
- events_[STOP] = m;
- return true;
- }
- }
- return false;
-}
-
-void
-Slur_engraver::set_melisma (bool m)
-{
- context ()->set_property ("slurMelismaBusy", m ? SCM_BOOL_T :SCM_BOOL_F);
}
+IMPLEMENT_TRANSLATOR_LISTENER (Slur_engraver, slur);
void
-Slur_engraver::acknowledge_grob (Grob_info info)
+Slur_engraver::listen_slur (Stream_event *ev)
{
- Grob *e =info.grob_;
- if (Note_column::has_interface (info.grob_))
- {
- for (int i = slurs_.size (); i--; )
- Slur::add_column (slurs_[i], e);
- for (int i = end_slurs_.size (); i-- ; )
- Slur::add_column (end_slurs_[i], e);
- }
- else
- {
- SCM inside = e->get_property ("inside-slur");
- if (Tie::has_interface (e)
- || to_boolean (inside))
- {
- for (int i = slurs_.size (); i--; )
- Slur::add_extra_encompass (slurs_[i], e);
- for (int i = end_slurs_.size (); i--; )
- Slur::add_extra_encompass (end_slurs_[i], e);
- }
- else if (inside == SCM_BOOL_F)
- {
- Grob *slur = slurs_.size()?slurs_[0] : 0;
- slur = (end_slurs_.size () && !slur)
- ? end_slurs_[0] : slur;
-
- if (slur)
- {
- e->add_offset_callback (Slur::outside_slur_callback_proc, Y_AXIS);
- e->set_property ("slur", slur->self_scm());
- }
- }
- }
+ internal_listen_slur (ev);
}
void
-Slur_engraver::finalize ()
-{
- if (slurs_.size ())
- slurs_[0]->warning (_("unterminated slur"));
-}
-
-void
-Slur_engraver::process_music ()
-{
- if (events_[STOP])
- {
- if (slurs_.size() == 0)
- {
- events_[STOP]->origin()->warning (_ ("No slur to end"));
- }
-
- end_slurs_ = slurs_;
- slurs_.clear ();
- }
-
- if (events_[START] && slurs_.is_empty ())
- {
- Music *ev = events_[START];
-
- bool double_slurs = to_boolean (get_property ("doubleSlurs"));
-
- Grob * slur = make_spanner ("Slur", events_[START]->self_scm ());
- Direction updown = to_dir (ev->get_property ("direction"));
- if (updown && !double_slurs)
- set_grob_direction (slur, updown);
-
- slurs_.push (slur);
-
- if (double_slurs)
- {
- set_grob_direction (slur, DOWN);
- slur = make_spanner ("Slur", events_[START]->self_scm ());
- set_grob_direction (slur, UP);
- slurs_.push (slur);
- }
- }
- set_melisma (slurs_.size ());
-}
-
-void
-Slur_engraver::stop_translation_timestep ()
+Slur_engraver::set_melisma (bool m)
{
- end_slurs_.clear ();
- events_[START] = events_[STOP] = 0;
+ context ()->set_property ("slurMelismaBusy", ly_bool2scm (m));
}
-ENTER_DESCRIPTION (Slur_engraver,
- /* descr */ "Build slurs grobs from slur events",
- /* creats*/ "Slur",
- /* accepts */ "slur-event",
- /* acks */ "note-column-interface accidental-interface fingering-interface script-interface tie-interface text-script-interface",
- /* reads */ "slurMelismaBusy doubleSlurs",
- /* write */ "");
+ADD_ACKNOWLEDGER (Slur_engraver, inline_accidental);
+ADD_ACKNOWLEDGER (Slur_engraver, fingering);
+ADD_ACKNOWLEDGER (Slur_engraver, note_column);
+ADD_ACKNOWLEDGER (Slur_engraver, script);
+ADD_ACKNOWLEDGER (Slur_engraver, text_script);
+ADD_ACKNOWLEDGER (Slur_engraver, dots);
+ADD_END_ACKNOWLEDGER (Slur_engraver, tie);
+ADD_ACKNOWLEDGER (Slur_engraver, tuplet_number);
+ADD_TRANSLATOR (Slur_engraver,
+ /* doc */
+ "Build slur grobs from slur events.",
+
+ /* create */
+ "Slur ",
+
+ /* read */
+ "slurMelismaBusy "
+ "doubleSlurs ",
+
+ /* write */
+ ""
+ );
projects / lilypond.git / blobdiff