/*
- 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--2015 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 "warn.hh"
-#include "note-column.hh"
-#include "translator-group.hh"
#include "engraver.hh"
+
+#include "context.hh"
+#include "directional-element-interface.hh"
+#include "international.hh"
+#include "note-column.hh"
+#include "slur.hh"
+#include "slur-proto-engraver.hh"
#include "spanner.hh"
+#include "stream-event.hh"
+#include "warn.hh"
-/*
- TODO: junk nested slur functionality.
- */
-class Slur_engraver : public Engraver
-{
- Link_array<Music> events_;
- Link_array<Music> new_slur_evs_;
- Link_array<Grob> slur_stack_;
- Link_array<Grob> end_slurs_;
- Moment last_start_;
+#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);
+ DECLARE_TRANSLATOR_LISTENER (note);
public:
+ SCM event_symbol ();
TRANSLATOR_DECLARATIONS (Slur_engraver);
};
-Slur_engraver::Slur_engraver ()
+Slur_engraver::Slur_engraver () :
+ Slur_proto_engraver ("doubleSlurs", "Slur", "slur", "slur-event")
{
- last_start_ = Moment (-1);
}
-bool
-Slur_engraver::try_music (Music *ev)
+SCM
+Slur_engraver::event_symbol ()
{
- if (ev->is_mus_type ("slur-event"))
- {
- /*
- Let's not start more than one slur per moment.
- */
- Direction d = to_dir (ev->get_mus_property ("span-direction"));
- if (d == START)
- {
- if (now_mom () > last_start_)
- {
- new_slur_evs_.push (ev);
- last_start_ = now_mom ();
- }
-
- /*
- But we swallow other slur events.
- */
-
- return true;
- }
- else if (d == STOP)
- {
- /*
- Swallow other events.
- */
- for (int j = new_slur_evs_.size(); j--;)
- {
- Direction nd = to_dir (new_slur_evs_[j]->get_mus_property ("span-direction"));
-
- if (nd == STOP)
- return true;
- }
-
- new_slur_evs_.push (ev);
- return true;
- }
- }
- return false;
+ // Need a string constant for memoization
+ return ly_symbol2scm ("slur-event");
}
+IMPLEMENT_TRANSLATOR_LISTENER (Slur_engraver, slur);
void
-Slur_engraver::set_melisma (bool m)
-{
- daddy_trans_->set_property ("slurMelismaBusy", m ? SCM_BOOL_T :SCM_BOOL_F);
-}
-
-void
-Slur_engraver::acknowledge_grob (Grob_info info)
-{
- if (Note_column::has_interface (info.grob_))
- {
- Grob *e =info.grob_;
- for (int i = 0; i < slur_stack_.size (); i++)
- Slur::add_column (slur_stack_[i], e);
- for (int i = 0; i < end_slurs_.size (); i++)
- Slur::add_column (end_slurs_[i], e);
- }
-}
-
-void
-Slur_engraver::finalize ()
+Slur_engraver::listen_slur (Stream_event *ev)
{
- for (int i = 0; i < slur_stack_.size (); i++)
- {
- /*
- Let's not typeset unterminated stuff
- */
- slur_stack_[i]->suicide ();
- }
- slur_stack_.clear ();
-
- for (int i=0; i < events_.size (); i++)
- {
- events_[i]->origin ()->warning (_ ("unterminated slur"));
- }
+ Slur_proto_engraver::listen_slur (ev);
}
+IMPLEMENT_TRANSLATOR_LISTENER (Slur_engraver, note);
void
-Slur_engraver::process_music ()
+Slur_engraver::listen_note (Stream_event *ev)
{
- Link_array<Grob> start_slurs;
- for (int i=0; i< new_slur_evs_.size (); i++)
- {
- Music* slur_ev = new_slur_evs_[i];
- // end slur: move the slur to other array
- Direction d = to_dir (slur_ev->get_mus_property ("span-direction"));
- if (d== STOP)
- {
- if (slur_stack_.empty ())
- /* How to shut up this warning, when Voice_devnull_engraver has
- eaten start event? */
- slur_ev->origin ()->warning (_f ("can't find start of slur"));
- else
- {
- Grob* slur = slur_stack_.pop ();
-
- end_slurs_.push (slur);
- events_.pop ();
- }
- }
- else if (d == START)
- {
- // push a new slur onto stack.
- // (use temp. array to wait for all slur STOPs)
- Grob* slur = make_spanner ("Slur");
- Slur::set_interface (slur); // cannot remove yet!
-
-
- if (Direction updown = to_dir (slur_ev->get_mus_property ("direction")))
- {
- slur->set_grob_property ("direction", gh_int2scm (updown));
- }
-
- start_slurs.push (slur);
- events_.push (slur_ev);
- announce_grob (slur, slur_ev->self_scm ());
- }
- }
-
- slur_stack_.concat (start_slurs);
-
- set_melisma (slur_stack_.size ());
-
- new_slur_evs_.clear ();
+ Slur_proto_engraver::listen_note (ev);
}
void
-Slur_engraver::stop_translation_timestep ()
+Slur_engraver::set_melisma (bool m)
{
- for (int i = 0; i < end_slurs_.size (); i++)
- {
- typeset_grob (end_slurs_[i]);
- }
- end_slurs_.clear ();
- new_slur_evs_.clear ();
+ context ()->set_property ("slurMelismaBusy", ly_bool2scm (m));
}
-
-
-ENTER_DESCRIPTION (Slur_engraver,
-/* descr */ "Build slurs from Slur_evs",
-/* creats*/ "Slur",
-/* accepts */ "slur-event",
-/* acks */ "note-column-interface",
-/* reads */ "slurMelismaBusy",
-/* 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