/*
- slur-engraver.cc -- implement Slur_engraver
+ This file is part of LilyPond, the GNU music typesetter.
- source file of the GNU LilyPond music typesetter
+ Copyright (C) 1997--2011 Han-Wen Nienhuys <hanwen@xs4all.nl>
- (c) 1997--2009 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 "engraver.hh"
*/
class Slur_engraver : public Engraver
{
- Drul_array<Stream_event *> events_;
- Stream_event *running_slur_start_;
+ vector<Stream_event *> start_events_;
+ vector<Stream_event *> stop_events_;
vector<Grob*> slurs_;
vector<Grob*> end_slurs_;
Slur_engraver::Slur_engraver ()
{
- events_[START] = events_[STOP] = 0;
}
IMPLEMENT_TRANSLATOR_LISTENER (Slur_engraver, slur);
{
Direction d = to_dir (ev->get_property ("span-direction"));
if (d == START)
- ASSIGN_EVENT_ONCE (events_[START], ev);
+ start_events_.push_back(ev);
else if (d == STOP)
- ASSIGN_EVENT_ONCE (events_[STOP], ev);
+ stop_events_.push_back(ev);
else ev->origin ()->warning (_f ("direction of %s invalid: %d",
"slur-event", int (d)));
}
acknowledge_extra_object (info);
}
-
void
Slur_engraver::acknowledge_script (Grob_info info)
{
void
Slur_engraver::finalize ()
{
- if (slurs_.size ())
+ for (vsize i = 0; i < slurs_.size (); i++)
{
- slurs_[0]->warning (_ ("unterminated slur"));
- for (vsize i = 0; i < slurs_.size (); i++)
- slurs_[i]->suicide ();
+ slurs_[i]->warning (_ ("unterminated slur"));
+ slurs_[i]->suicide ();
}
}
void
Slur_engraver::process_music ()
{
- if (events_[STOP])
+ for (vsize i = 0; i < stop_events_.size (); i++)
{
- if (slurs_.size () == 0)
- events_[STOP]->origin ()->warning (_ ("cannot end slur"));
-
-
- end_slurs_ = slurs_;
- slurs_.clear ();
+ Stream_event *ev = stop_events_[i];
+ string id = robust_scm2string (ev->get_property ("spanner-id"), "");
+
+ // Find the slur that is ended with this event (by checking the spanner-id)
+ bool ended = false;
+ for (vsize j = slurs_.size (); j--;)
+ {
+ if (id == robust_scm2string (slurs_[j]->get_property ("spanner-id"), ""))
+ {
+ ended = true;
+ end_slurs_.push_back (slurs_[j]);
+ slurs_.erase (slurs_.begin () + j);
+ }
+ }
+ if (!ended)
+ ev->origin ()->warning (_ ("cannot end slur"));
}
- if (events_[START] && slurs_.empty ())
+ for (vsize i = start_events_.size (); i--;)
{
- Stream_event *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_back (slur);
-
- if (double_slurs)
- {
- set_grob_direction (slur, DOWN);
- slur = make_spanner ("Slur", events_[START]->self_scm ());
- set_grob_direction (slur, UP);
- slurs_.push_back (slur);
- }
+ Stream_event *ev = start_events_[i];
+ string id = robust_scm2string (ev->get_property ("spanner-id"), "");
+ bool have_slur = false;
+ // Check if we already have a slur with the same spanner-id.
+ // In that case, don't create a new slur, but print a warning
+ for (vsize j = 0; j < slurs_.size (); j++)
+ have_slur = have_slur || (id == robust_scm2string (slurs_[j]->get_property ("spanner-id"), ""));
+
+ if (have_slur)
+ {
+ // We already have a slur, so give a warning and completely ignore
+ // the new slur.
+ ev->origin ()->warning(_ ("already have slur"));
+ start_events_.erase (start_events_.begin () + i);
+ }
+ else
+ {
+ Grob *slur = make_spanner ("Slur", ev->self_scm ());
+ Direction updown = to_dir (ev->get_property ("direction"));
+ slur->set_property ("spanner-id", ly_string2scm (id));
+ if (updown)
+ set_grob_direction (slur, updown);
+ slurs_.push_back (slur);
+
+ if (to_boolean (get_property ("doubleSlurs")))
+ {
+ set_grob_direction (slur, DOWN);
+ slur = make_spanner ("Slur", ev->self_scm ());
+ slur->set_property ("spanner-id", ly_string2scm (id));
+ set_grob_direction (slur, UP);
+ slurs_.push_back (slur);
+ }
+ }
}
set_melisma (slurs_.size ());
}
for (vsize i = 0; i < end_slurs_.size (); i++)
Slur::add_extra_encompass (end_slurs_[i], g);
- if (!events_[START])
+ if (!start_events_.size ())
for (vsize i = 0; i < slurs_.size (); i++)
Slur::add_extra_encompass (slurs_[i], g);
}
announce_end_grob (s, SCM_EOL);
}
end_slurs_.clear ();
- events_[START] = events_[STOP] = 0;
+ start_events_.clear ();
+ stop_events_.clear ();
}
ADD_ACKNOWLEDGER (Slur_engraver, accidental);
projects / lilypond.git / blobdiff