Extender_engraver::Extender_engraver ()
{
extender_spanner_p_ = 0;
- span_reqs_drul_[RIGHT] = span_reqs_drul_[LEFT] = 0;
+ req_l_ = 0;
}
void
Extender_engraver::acknowledge_element (Score_element_info i)
{
- G_text_item* t = dynamic_cast<G_text_item*> (i.elem_l_);
- if (!t)
- return;
- if (!extender_spanner_p_)
- return;
- if (!span_reqs_drul_[LEFT])
- return;
-
- if (!extender_spanner_p_->item_l_drul_[LEFT])
- extender_spanner_p_->set_textitem (LEFT, t);
- else
- if (span_reqs_drul_[RIGHT] && !extender_spanner_p_->item_l_drul_[RIGHT])
- extender_spanner_p_->set_textitem (RIGHT, t);
+ if (G_text_item* t = dynamic_cast<G_text_item*> (i.elem_l_))
+ {
+ Rhythmic_req * rh = dynamic_cast<Rhythmic_req*> (i.req_l_);
+ if (!rh)
+ return;
+
+ now_lyrics_.push (Text_lyric_tuple (t, rh, now_mom () + rh->length_mom ()));
+ /*
+ UGH. What do we do in case of multiple alternatives?
+ */
+ if (extender_spanner_p_
+ && !extender_spanner_p_->spanned_drul_[RIGHT]
+ )
+ {
+ extender_spanner_p_->set_textitem (RIGHT, t);
+ }
+ }
}
+
bool
Extender_engraver::do_try_music (Music* req_l)
{
if (Extender_req* p = dynamic_cast <Extender_req *> (req_l))
{
- if (bool (extender_spanner_p_) == bool (p->spantype_ == START))
+ if (req_l_)
return false;
- Direction d = (!extender_spanner_p_) ? LEFT : RIGHT;
- if (span_reqs_drul_[d] && !span_reqs_drul_[d]->equal_b (p))
- return false;
-
- span_reqs_drul_[d] = p;
- span_mom_drul_[d] = get_staff_info ().musical_l ()->when ();
+ req_l_ = p;
return true;
}
return false;
{
if (extender_spanner_p_)
{
- span_reqs_drul_[LEFT]->warning (_ ("unterminated extender"));
+ req_l_->warning (_ ("unterminated extender"));
extender_spanner_p_->set_bounds(RIGHT, get_staff_info ().command_l ());
}
}
void
Extender_engraver::do_process_requests ()
{
- if (extender_spanner_p_ || !span_reqs_drul_[LEFT])
- return;
+ Array<Text_lyric_tuple> stopped_texts;
+ Moment now = now_mom ();
- extender_spanner_p_ = new Extender_spanner;
+ stopped_texts.clear ();
+ while (past_lyrics_pq_.size ()
+ && past_lyrics_pq_.front ().end_ == now)
+ stopped_texts.push (past_lyrics_pq_.get ());
- announce_element (Score_element_info (extender_spanner_p_, span_reqs_drul_[LEFT]));
+ if (req_l_)
+ {
+ if (!stopped_texts.size ())
+ {
+ req_l_->warning ("Nothing to connect extender to on the left. Ignoring extender request");
+ return;
+ }
+
+ extender_spanner_p_ = new Extender_spanner;
+ extender_spanner_p_->set_textitem (LEFT, stopped_texts[0].text_l_);
+ announce_element (Score_element_info (extender_spanner_p_, req_l_));
+ }
}
+
void
Extender_engraver::do_pre_move_processing ()
{
- if (!extender_spanner_p_ || !span_reqs_drul_[RIGHT])
- return;
+ for (int i=0; i < now_lyrics_.size (); i++)
+ {
+ past_lyrics_pq_.insert (now_lyrics_[i]);
+ }
+ now_lyrics_.clear ();
- typeset_element (extender_spanner_p_);
-
- extender_spanner_p_ = 0;
- span_reqs_drul_[RIGHT] = span_reqs_drul_[LEFT] = 0;
+ if (extender_spanner_p_)
+ {
+ typeset_element (extender_spanner_p_);
+ extender_spanner_p_ = 0;
+ }
+}
+void
+Extender_engraver::do_post_move_processing ()
+{
+ Moment now = now_mom ();
+ while (past_lyrics_pq_.size () && past_lyrics_pq_.front ().end_ < now)
+ past_lyrics_pq_.delmin ();
+
+ req_l_ =0;
+}
+
+/**********************************************************************/
+Text_lyric_tuple::Text_lyric_tuple ()
+{
+ text_l_ =0;
+ req_l_ =0;
+ end_ = 0;
}
+Text_lyric_tuple::Text_lyric_tuple (G_text_item *h, Rhythmic_req*m, Moment mom)
+{
+ text_l_ = h;
+ req_l_ = m;
+ end_ = mom;
+}
+
+
+int
+Text_lyric_tuple::time_compare (Text_lyric_tuple const&h1,
+ Text_lyric_tuple const &h2)
+{
+ return (h1.end_ - h2.end_ ).sign ();
+}