--- /dev/null
+/*
+ This file is part of LilyPond, the GNU music typesetter.
+
+ Copyright (C) 2013 Mike Solomon <mike@mikesolomon.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_PROTO_ENGRAVER_HH
+#define SLUR_PROTO_ENGRAVER_HH
+
+#include "engraver.hh"
+#include "moment.hh"
+
+class Slur_proto_engraver : public Engraver
+{
+protected:
+ Slur_proto_engraver (const char* double_property_name,
+ const char* grob_name, const char* object_name, const char* event_name) :
+ double_property_name_ (double_property_name),
+ grob_name_ (grob_name), object_name_ (object_name),
+ event_name_ (event_name) {}
+
+ // protected so that subclasses can see them
+ vector<Stream_event *> start_events_;
+ vector<Stream_event *> stop_events_;
+ vector<Grob *> slurs_;
+ vector<Grob *> end_slurs_;
+ vector<Grob_info> objects_to_acknowledge_;
+ const char* double_property_name_;
+ const char* grob_name_;
+ const char* object_name_;
+ const char* event_name_;
+
+ DECLARE_ACKNOWLEDGER (inline_accidental);
+ DECLARE_ACKNOWLEDGER (fingering);
+ DECLARE_ACKNOWLEDGER (note_column);
+ DECLARE_ACKNOWLEDGER (script);
+ DECLARE_ACKNOWLEDGER (dots);
+ DECLARE_ACKNOWLEDGER (text_script);
+ DECLARE_END_ACKNOWLEDGER (tie);
+ DECLARE_ACKNOWLEDGER (tuplet_number);
+
+ void internal_listen_slur (Stream_event *ev);
+ void acknowledge_extra_object (Grob_info);
+ void stop_translation_timestep ();
+ void process_music ();
+
+ bool can_create_slur (string, vsize, vsize *, Stream_event *);
+ void create_slur (string spanner_id, Stream_event *ev_cause, Grob *g_cause, Direction dir, bool left_broken);
+ bool try_to_end (Stream_event *ev);
+
+ virtual void set_melisma (bool);
+ virtual void finalize ();
+ virtual void derived_mark () const;
+
+public:
+ // no TRANSLATOR_DECLARATIONS (Slur_proto_engraver) needed since this
+ // class is abstract
+};
+
+#endif // SLUR_PROTO_ENGRAVER_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"
#include "translator.icc"
-/*
- NOTE NOTE NOTE
-
- This is largely similar to Slur_engraver. Check if fixes
- apply there too.
-
- (on principle, engravers don't use inheritance for code sharing)
-
- */
-
-/*
- 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.
-*/
-class Phrasing_slur_engraver : public Engraver
+class Phrasing_slur_engraver : public Slur_proto_engraver
{
- vector<Stream_event *> start_events_;
- vector<Stream_event *> stop_events_;
- vector<Grob *> slurs_;
- vector<Grob *> end_slurs_;
- vector<Grob_info> objects_to_acknowledge_;
-
protected:
DECLARE_TRANSLATOR_LISTENER (phrasing_slur);
- DECLARE_ACKNOWLEDGER (inline_accidental);
- DECLARE_ACKNOWLEDGER (fingering);
- DECLARE_ACKNOWLEDGER (note_column);
DECLARE_ACKNOWLEDGER (slur);
- DECLARE_ACKNOWLEDGER (script);
- DECLARE_ACKNOWLEDGER (dots);
- DECLARE_ACKNOWLEDGER (text_script);
- DECLARE_END_ACKNOWLEDGER (tie);
- DECLARE_ACKNOWLEDGER (tuplet_number);
-
- void acknowledge_extra_object (Grob_info);
- void stop_translation_timestep ();
- void process_music ();
-
- virtual void finalize ();
- virtual void derived_mark () const;
public:
TRANSLATOR_DECLARATIONS (Phrasing_slur_engraver);
};
-Phrasing_slur_engraver::Phrasing_slur_engraver ()
+Phrasing_slur_engraver::Phrasing_slur_engraver () :
+ Slur_proto_engraver (0, "PhrasingSlur", "phrasing slur", "phrasing-slur-event")
{
}
-void
-Phrasing_slur_engraver::derived_mark () const
-{
- for (vsize i = start_events_.size (); i--;)
- scm_gc_mark (start_events_[i]->self_scm ());
- for (vsize i = stop_events_.size (); i--;)
- scm_gc_mark (stop_events_[i]->self_scm ());
-}
-
IMPLEMENT_TRANSLATOR_LISTENER (Phrasing_slur_engraver, phrasing_slur);
void
Phrasing_slur_engraver::listen_phrasing_slur (Stream_event *ev)
{
- Direction d = to_dir (ev->get_property ("span-direction"));
- if (d == START)
- start_events_.push_back (ev);
- else if (d == STOP)
- stop_events_.push_back (ev);
- else ev->origin ()->warning (_f ("direction of %s invalid: %d",
- "phrasing-slur-event", int (d)));
-}
-
-void
-Phrasing_slur_engraver::acknowledge_note_column (Grob_info info)
-{
- Grob *e = info.grob ();
- for (vsize i = slurs_.size (); i--;)
- Slur::add_column (slurs_[i], e);
- for (vsize i = end_slurs_.size (); i--;)
- Slur::add_column (end_slurs_[i], e);
-}
-
-void
-Phrasing_slur_engraver::acknowledge_extra_object (Grob_info info)
-{
- objects_to_acknowledge_.push_back (info);
-}
-
-void
-Phrasing_slur_engraver::acknowledge_inline_accidental (Grob_info info)
-{
- acknowledge_extra_object (info);
-}
-
-void
-Phrasing_slur_engraver::acknowledge_dots (Grob_info info)
-{
- acknowledge_extra_object (info);
-}
-
-void
-Phrasing_slur_engraver::acknowledge_fingering (Grob_info info)
-{
- acknowledge_extra_object (info);
-}
-
-void
-Phrasing_slur_engraver::acknowledge_tuplet_number (Grob_info info)
-{
- acknowledge_extra_object (info);
-}
-
-void
-Phrasing_slur_engraver::acknowledge_script (Grob_info info)
-{
- if (!info.grob ()->internal_has_interface (ly_symbol2scm ("dynamic-interface")))
- acknowledge_extra_object (info);
-}
-
-void
-Phrasing_slur_engraver::acknowledge_text_script (Grob_info info)
-{
- acknowledge_extra_object (info);
-}
-
-void
-Phrasing_slur_engraver::acknowledge_end_tie (Grob_info info)
-{
- acknowledge_extra_object (info);
+ internal_listen_slur (ev);
}
void
acknowledge_extra_object (info);
}
-void
-Phrasing_slur_engraver::finalize ()
-{
- for (vsize i = 0; i < slurs_.size (); i++)
- {
- slurs_[i]->warning (_ ("unterminated phrasing slur"));
- slurs_[i]->suicide ();
- }
- slurs_.clear ();
-}
-
-void
-Phrasing_slur_engraver::process_music ()
-{
- for (vsize i = 0; i < stop_events_.size (); i++)
- {
- Stream_event *ev = stop_events_[i];
- string id = robust_scm2string (ev->get_property ("spanner-id"), "");
-
- // Find the slurs that are 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)
- {
- // Ignore redundant stop events for this id
- for (vsize j = stop_events_.size (); --j > i;)
- {
- if (id == robust_scm2string (stop_events_[j]->get_property ("spanner-id"), ""))
- stop_events_.erase (stop_events_.begin () + j);
- }
- }
- else
- ev->origin ()->warning (_ ("cannot end phrasing slur"));
- }
-
- vsize old_slurs = slurs_.size ();
- for (vsize i = start_events_.size (); i--;)
- {
- Stream_event *ev = start_events_[i];
- string id = robust_scm2string (ev->get_property ("spanner-id"), "");
- Direction updown = to_dir (ev->get_property ("direction"));
-
- bool completed;
- for (vsize j = slurs_.size (); !(completed = (j-- == 0));)
- {
- // Check if we already have a slur with the same spanner-id.
- if (id == robust_scm2string (slurs_[j]->get_property ("spanner-id"), ""))
- {
- if (j < old_slurs)
- {
- // We already have an old slur, so give a warning
- // and completely ignore the new slur.
- ev->origin ()->warning (_ ("already have phrasing slur"));
- start_events_.erase (start_events_.begin () + i);
- break;
- }
-
- // If this slur event has no direction, it will not
- // contribute anything new to the existing slur(s), so
- // we can ignore it.
-
- if (!updown)
- break;
-
- Stream_event *c = unsmob_stream_event (slurs_[j]->get_property ("cause"));
-
- if (!c)
- {
- slurs_[j]->programming_error ("phrasing slur without a cause");
- continue;
- }
-
- Direction slur_dir = to_dir (c->get_property ("direction"));
-
- // If the existing slur does not have a direction yet,
- // we'd rather take the new one.
-
- if (!slur_dir)
- {
- slurs_[j]->suicide ();
- slurs_.erase (slurs_.begin () + j);
- continue;
- }
-
- // If the existing slur has the same direction as ours, drop ours
-
- if (slur_dir == updown)
- break;
- }
- }
- // If the loop completed, our slur is new
- if (completed)
- {
- Grob *slur = make_spanner ("PhrasingSlur", ev->self_scm ());
- slur->set_property ("spanner-id", ly_string2scm (id));
- if (updown)
- set_grob_direction (slur, updown);
- slurs_.push_back (slur);
- }
- }
-}
-
-void
-Phrasing_slur_engraver::stop_translation_timestep ()
-{
- if (Grob *g = unsmob_grob (get_property ("currentCommandColumn")))
- {
- for (vsize i = 0; i < end_slurs_.size (); i++)
- Slur::add_extra_encompass (end_slurs_[i], g);
-
- if (!start_events_.size ())
- for (vsize i = 0; i < slurs_.size (); i++)
- Slur::add_extra_encompass (slurs_[i], g);
- }
-
- for (vsize i = 0; i < end_slurs_.size (); i++)
- {
- Spanner *s = dynamic_cast<Spanner *> (end_slurs_[i]);
- if (!s->get_bound (RIGHT))
- s->set_bound (RIGHT, unsmob_grob (get_property ("currentMusicalColumn")));
- announce_end_grob (s, SCM_EOL);
- }
-
- for (vsize i = 0; i < objects_to_acknowledge_.size (); i++)
- Slur::auxiliary_acknowledge_extra_object (objects_to_acknowledge_[i], slurs_, end_slurs_);
-
- objects_to_acknowledge_.clear ();
- end_slurs_.clear ();
- start_events_.clear ();
- stop_events_.clear ();
-}
-
ADD_ACKNOWLEDGER (Phrasing_slur_engraver, inline_accidental);
ADD_ACKNOWLEDGER (Phrasing_slur_engraver, fingering)
ADD_ACKNOWLEDGER (Phrasing_slur_engraver, note_column);
#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"
#include "translator.icc"
-/*
- NOTE NOTE NOTE
-
- This is largely similar to Phrasing_slur_engraver. Check if fixes
- apply there too.
-
- (on principle, engravers don't use inheritance for code sharing)
-
- */
-
-/*
- 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.
-*/
-class Slur_engraver : public Engraver
+class Slur_engraver : public Slur_proto_engraver
{
- vector<Stream_event *> start_events_;
- vector<Stream_event *> stop_events_;
- vector<Grob *> slurs_;
- vector<Grob *> end_slurs_;
- vector<Grob_info> objects_to_acknowledge_;
-
- void set_melisma (bool);
+ virtual void set_melisma (bool);
protected:
DECLARE_TRANSLATOR_LISTENER (slur);
- DECLARE_ACKNOWLEDGER (inline_accidental);
- DECLARE_ACKNOWLEDGER (fingering);
- DECLARE_ACKNOWLEDGER (note_column);
- DECLARE_ACKNOWLEDGER (script);
- DECLARE_ACKNOWLEDGER (dots);
- DECLARE_ACKNOWLEDGER (text_script);
- DECLARE_END_ACKNOWLEDGER (tie);
- DECLARE_ACKNOWLEDGER (tuplet_number);
-
- void acknowledge_extra_object (Grob_info);
- void stop_translation_timestep ();
- void process_music ();
-
- virtual void finalize ();
- virtual void derived_mark () const;
public:
TRANSLATOR_DECLARATIONS (Slur_engraver);
};
-Slur_engraver::Slur_engraver ()
+Slur_engraver::Slur_engraver () :
+ Slur_proto_engraver ("doubleSlurs", "Slur", "slur", "slur-event")
{
}
-void
-Slur_engraver::derived_mark () const
-{
- for (vsize i = start_events_.size (); i--;)
- scm_gc_mark (start_events_[i]->self_scm ());
- for (vsize i = stop_events_.size (); i--;)
- scm_gc_mark (stop_events_[i]->self_scm ());
-}
-
IMPLEMENT_TRANSLATOR_LISTENER (Slur_engraver, slur);
void
Slur_engraver::listen_slur (Stream_event *ev)
{
- Direction d = to_dir (ev->get_property ("span-direction"));
- if (d == START)
- start_events_.push_back (ev);
- else if (d == STOP)
- stop_events_.push_back (ev);
- else ev->origin ()->warning (_f ("direction of %s invalid: %d",
- "slur-event", int (d)));
+ internal_listen_slur (ev);
}
void
Slur_engraver::set_melisma (bool m)
{
- context ()->set_property ("slurMelismaBusy", m ? SCM_BOOL_T : SCM_BOOL_F);
-}
-
-void
-Slur_engraver::acknowledge_note_column (Grob_info info)
-{
- Grob *e = info.grob ();
- for (vsize i = slurs_.size (); i--;)
- Slur::add_column (slurs_[i], e);
- for (vsize i = end_slurs_.size (); i--;)
- Slur::add_column (end_slurs_[i], e);
-}
-
-void
-Slur_engraver::acknowledge_extra_object (Grob_info info)
-{
- objects_to_acknowledge_.push_back (info);
-}
-
-void
-Slur_engraver::acknowledge_inline_accidental (Grob_info info)
-{
- acknowledge_extra_object (info);
-}
-
-void
-Slur_engraver::acknowledge_dots (Grob_info info)
-{
- acknowledge_extra_object (info);
-}
-
-void
-Slur_engraver::acknowledge_fingering (Grob_info info)
-{
- acknowledge_extra_object (info);
-}
-
-void
-Slur_engraver::acknowledge_tuplet_number (Grob_info info)
-{
- acknowledge_extra_object (info);
-}
-
-void
-Slur_engraver::acknowledge_script (Grob_info info)
-{
- if (!info.grob ()->internal_has_interface (ly_symbol2scm ("dynamic-interface")))
- acknowledge_extra_object (info);
-}
-
-void
-Slur_engraver::acknowledge_text_script (Grob_info info)
-{
- acknowledge_extra_object (info);
-}
-
-void
-Slur_engraver::acknowledge_end_tie (Grob_info info)
-{
- acknowledge_extra_object (info);
-}
-
-void
-Slur_engraver::finalize ()
-{
- for (vsize i = 0; i < slurs_.size (); i++)
- {
- slurs_[i]->warning (_ ("unterminated slur"));
- slurs_[i]->suicide ();
- }
- slurs_.clear ();
-}
-
-void
-Slur_engraver::process_music ()
-{
- for (vsize i = 0; i < stop_events_.size (); i++)
- {
- Stream_event *ev = stop_events_[i];
- string id = robust_scm2string (ev->get_property ("spanner-id"), "");
-
- // Find the slurs that are 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)
- {
- // Ignore redundant stop events for this id
- for (vsize j = stop_events_.size (); --j > i;)
- {
- if (id == robust_scm2string (stop_events_[j]->get_property ("spanner-id"), ""))
- stop_events_.erase (stop_events_.begin () + j);
- }
- }
- else
- ev->origin ()->warning (_ ("cannot end slur"));
- }
-
- vsize old_slurs = slurs_.size ();
- for (vsize i = start_events_.size (); i--;)
- {
- Stream_event *ev = start_events_[i];
- string id = robust_scm2string (ev->get_property ("spanner-id"), "");
- Direction updown = to_dir (ev->get_property ("direction"));
-
- bool completed;
- for (vsize j = slurs_.size (); !(completed = (j-- == 0));)
- {
- // Check if we already have a slur with the same spanner-id.
- if (id == robust_scm2string (slurs_[j]->get_property ("spanner-id"), ""))
- {
- if (j < old_slurs)
- {
- // We already have an old slur, so give a warning
- // and completely ignore the new slur.
- ev->origin ()->warning (_ ("already have slur"));
- start_events_.erase (start_events_.begin () + i);
- break;
- }
-
- // If this slur event has no direction, it will not
- // contribute anything new to the existing slur(s), so
- // we can ignore it.
-
- if (!updown)
- break;
-
- Stream_event *c = unsmob_stream_event (slurs_[j]->get_property ("cause"));
-
- if (!c)
- {
- slurs_[j]->programming_error ("slur without a cause");
- continue;
- }
-
- Direction slur_dir = to_dir (c->get_property ("direction"));
-
- // If the existing slur does not have a direction yet,
- // we'd rather take the new one.
-
- if (!slur_dir)
- {
- slurs_[j]->suicide ();
- slurs_.erase (slurs_.begin () + j);
- continue;
- }
-
- // If the existing slur has the same direction as ours, drop ours
-
- if (slur_dir == updown)
- break;
- }
- }
- // If the loop completed, our slur is new
- if (completed)
- {
- Grob *slur = make_spanner ("Slur", ev->self_scm ());
- 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 ());
-}
-
-void
-Slur_engraver::stop_translation_timestep ()
-{
- if (Grob *g = unsmob_grob (get_property ("currentCommandColumn")))
- {
- for (vsize i = 0; i < end_slurs_.size (); i++)
- Slur::add_extra_encompass (end_slurs_[i], g);
-
- if (!start_events_.size ())
- for (vsize i = 0; i < slurs_.size (); i++)
- Slur::add_extra_encompass (slurs_[i], g);
- }
-
- for (vsize i = 0; i < end_slurs_.size (); i++)
- {
- Spanner *s = dynamic_cast<Spanner *> (end_slurs_[i]);
- if (!s->get_bound (RIGHT))
- s->set_bound (RIGHT, unsmob_grob (get_property ("currentMusicalColumn")));
- announce_end_grob (s, SCM_EOL);
- }
-
- for (vsize i = 0; i < objects_to_acknowledge_.size (); i++)
- Slur::auxiliary_acknowledge_extra_object (objects_to_acknowledge_[i], slurs_, end_slurs_);
-
- objects_to_acknowledge_.clear ();
- end_slurs_.clear ();
- start_events_.clear ();
- stop_events_.clear ();
+ context ()->set_property ("slurMelismaBusy", ly_bool2scm (m));
}
ADD_ACKNOWLEDGER (Slur_engraver, inline_accidental);
--- /dev/null
+/*
+ This file is part of LilyPond, the GNU music typesetter.
+
+ Copyright (C) 2013 Mike Solomon <mike@mikesolomon.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 "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"
+
+#include "translator.icc"
+
+void
+Slur_proto_engraver::derived_mark () const
+{
+ for (vsize i = start_events_.size (); i--;)
+ scm_gc_mark (start_events_[i]->self_scm ());
+ for (vsize i = stop_events_.size (); i--;)
+ scm_gc_mark (stop_events_[i]->self_scm ());
+}
+
+void
+Slur_proto_engraver::internal_listen_slur (Stream_event *ev)
+{
+ Direction d = to_dir (ev->get_property ("span-direction"));
+ if (d == START)
+ start_events_.push_back (ev);
+ else if (d == STOP)
+ stop_events_.push_back (ev);
+ else ev->origin ()->warning (_f ("direction of %s invalid: %d",
+ event_name_, int (d)));
+}
+
+void
+Slur_proto_engraver::acknowledge_note_column (Grob_info info)
+{
+ Grob *e = info.grob ();
+ for (vsize i = slurs_.size (); i--;)
+ Slur::add_column (slurs_[i], e);
+ for (vsize i = end_slurs_.size (); i--;)
+ Slur::add_column (end_slurs_[i], e);
+}
+
+void
+Slur_proto_engraver::acknowledge_extra_object (Grob_info info)
+{
+ objects_to_acknowledge_.push_back (info);
+}
+
+void
+Slur_proto_engraver::acknowledge_inline_accidental (Grob_info info)
+{
+ acknowledge_extra_object (info);
+}
+
+void
+Slur_proto_engraver::acknowledge_dots (Grob_info info)
+{
+ acknowledge_extra_object (info);
+}
+
+void
+Slur_proto_engraver::acknowledge_fingering (Grob_info info)
+{
+ acknowledge_extra_object (info);
+}
+
+void
+Slur_proto_engraver::acknowledge_tuplet_number (Grob_info info)
+{
+ acknowledge_extra_object (info);
+}
+
+void
+Slur_proto_engraver::acknowledge_script (Grob_info info)
+{
+ if (!info.grob ()->internal_has_interface (ly_symbol2scm ("dynamic-interface")))
+ acknowledge_extra_object (info);
+}
+
+void
+Slur_proto_engraver::acknowledge_text_script (Grob_info info)
+{
+ acknowledge_extra_object (info);
+}
+
+void
+Slur_proto_engraver::acknowledge_end_tie (Grob_info info)
+{
+ acknowledge_extra_object (info);
+}
+
+void
+Slur_proto_engraver::finalize ()
+{
+ for (vsize i = 0; i < slurs_.size (); i++)
+ {
+ slurs_[i]->warning (_f ("unterminated %s", object_name_));
+ slurs_[i]->suicide ();
+ }
+ slurs_.clear ();
+}
+
+void
+Slur_proto_engraver::create_slur (string spanner_id, Stream_event *ev_cause, Grob *g_cause, Direction dir, bool left_broken)
+{
+ Grob *ccc = unsmob_grob (get_property ("currentCommandColumn"));
+ SCM cause = ev_cause ? ev_cause->self_scm () : g_cause->self_scm ();
+ Spanner *slur = make_spanner (grob_name_, cause);
+ slur->set_property ("spanner-id", ly_string2scm (spanner_id));
+ if (dir)
+ set_grob_direction (slur, dir);
+ if (left_broken)
+ slur->set_bound (LEFT, ccc);
+ slurs_.push_back (slur);
+ if (double_property_name_
+ && to_boolean (get_property (double_property_name_)))
+ {
+ set_grob_direction (slur, DOWN);
+ slur = make_spanner (grob_name_, cause);
+ slur->set_property ("spanner-id", ly_string2scm (spanner_id));
+ set_grob_direction (slur, UP);
+ if (left_broken)
+ slur->set_bound (LEFT, ccc);
+ slurs_.push_back (slur);
+ }
+
+}
+
+bool
+Slur_proto_engraver::can_create_slur (string id, vsize old_slurs, vsize *event_idx, Stream_event *ev)
+{
+ for (vsize j = slurs_.size (); j--;)
+ {
+ Grob *slur = slurs_[j];
+ Direction updown = to_dir (ev->get_property ("direction"));
+
+ // Check if we already have a slur with the same spanner-id.
+ if (id == robust_scm2string (slur->get_property ("spanner-id"), ""))
+ {
+ if (j < old_slurs)
+ {
+ // We already have an old slur, so give a warning
+ // and completely ignore the new slur.
+ ev->origin ()->warning (_f ("already have %s", object_name_));
+ if (event_idx)
+ start_events_.erase (start_events_.begin () + (*event_idx));
+ return false;
+ }
+
+ // If this slur event has no direction, it will not
+ // contribute anything new to the existing slur(s), so
+ // we can ignore it.
+
+ if (!updown)
+ return false;
+
+ Stream_event *c = unsmob_stream_event (slur->get_property ("cause"));
+
+ if (!c)
+ {
+ slur->programming_error (_f ("%s without a cause", object_name_));
+ return true;
+ }
+
+ Direction slur_dir = to_dir (c->get_property ("direction"));
+
+ // If the existing slur does not have a direction yet,
+ // we'd rather take the new one.
+
+ if (!slur_dir)
+ {
+ slur->suicide ();
+ slurs_.erase (slurs_.begin () + j);
+ return true;
+ }
+
+ // If the existing slur has the same direction as ours, drop ours
+
+ if (slur_dir == updown)
+ return false;
+ }
+ }
+ return true;
+}
+
+bool
+Slur_proto_engraver::try_to_end (Stream_event *ev)
+{
+ string id = robust_scm2string (ev->get_property ("spanner-id"), "");
+
+ // Find the slurs that are 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);
+ }
+ }
+ return ended;
+}
+
+void
+Slur_proto_engraver::process_music ()
+{
+ for (vsize i = 0; i < stop_events_.size (); i++)
+ {
+ string id = robust_scm2string (stop_events_[i]->get_property ("spanner-id"), "");
+ bool ended = try_to_end (stop_events_[i]);
+ if (ended)
+ {
+ // Ignore redundant stop events for this id
+ for (vsize j = stop_events_.size (); --j > i;)
+ {
+ if (id == robust_scm2string (stop_events_[j]->get_property ("spanner-id"), ""))
+ stop_events_.erase (stop_events_.begin () + j);
+ }
+ }
+ else
+ stop_events_[i]->origin ()->warning (_f ("cannot end %s", object_name_));
+ }
+
+ vsize old_slurs = slurs_.size ();
+ for (vsize i = start_events_.size (); i--;)
+ {
+ Stream_event *ev = start_events_[i];
+ string id = robust_scm2string (ev->get_property ("spanner-id"), "");
+ Direction updown = to_dir (ev->get_property ("direction"));
+
+ if (can_create_slur (id, old_slurs, &i, ev))
+ create_slur (id, ev, 0, updown, false);
+ }
+
+ set_melisma (slurs_.size ());
+}
+
+void
+Slur_proto_engraver::set_melisma (bool)
+{
+}
+
+void
+Slur_proto_engraver::stop_translation_timestep ()
+{
+ if (Grob *g = unsmob_grob (get_property ("currentCommandColumn")))
+ {
+ for (vsize i = 0; i < end_slurs_.size (); i++)
+ Slur::add_extra_encompass (end_slurs_[i], g);
+
+ if (!start_events_.size ())
+ for (vsize i = 0; i < slurs_.size (); i++)
+ Slur::add_extra_encompass (slurs_[i], g);
+ }
+
+ for (vsize i = 0; i < end_slurs_.size (); i++)
+ {
+ Spanner *s = dynamic_cast<Spanner *> (end_slurs_[i]);
+ if (!s->get_bound (RIGHT))
+ s->set_bound (RIGHT, unsmob_grob (get_property ("currentMusicalColumn")));
+ announce_end_grob (s, SCM_EOL);
+ }
+
+ for (vsize i = 0; i < objects_to_acknowledge_.size (); i++)
+ Slur::auxiliary_acknowledge_extra_object (objects_to_acknowledge_[i], slurs_, end_slurs_);
+
+ objects_to_acknowledge_.clear ();
+ end_slurs_.clear ();
+ start_events_.clear ();
+ stop_events_.clear ();
+}
+
+// no ADD_ACKNOWLEDGER / ADD_TRANSLATOR macro calls
+// since this class is abstract
projects / lilypond.git / commitdiff