--- /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 (const 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 (const 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 / blobdiff