2 plet-engraver.cc -- implement Plet_engraver
4 (c) 1997--1998 Jan Nieuwenhuizen <janneke@gnu.org>
8 #include "musical-request.hh"
9 #include "plet-engraver.hh"
10 #include "plet-spanner.hh"
11 #include "text-def.hh"
13 #include "score-column.hh"
16 IMPLEMENT_IS_TYPE_B1 (Plet_engraver,Engraver);
17 ADD_THIS_TRANSLATOR (Plet_engraver);
19 Plet_engraver::Plet_engraver ()
21 beam_mom_drul_[LEFT] = span_mom_drul_[LEFT] = INT_MAX;
22 beam_mom_drul_[RIGHT] = span_mom_drul_[LEFT] = -INT_MAX;
24 span_reqs_drul_[RIGHT] = span_reqs_drul_[LEFT] = 0;
28 Plet_engraver::acknowledge_element (Score_element_info i)
31 Stem * st = (dynamic_cast<Stem *> (i.elem_l_));
36 if (!span_reqs_drul_[LEFT])
39 if (!plet_spanner_p_->stem_l_drul_[LEFT])
40 plet_spanner_p_->set_stem (LEFT, st);
42 if (span_reqs_drul_[RIGHT] && !plet_spanner_p_->stem_l_drul_[RIGHT])
43 plet_spanner_p_->set_stem (RIGHT, st);
47 Plet_engraver::do_try_request (Request* req_l)
50 UGH! This is incorrect!
51 Beam_req might not reach the Plet_engraver if ordering is wrong!
53 Beam_req* b = dynamic_cast <Beam_req *> (req_l);
58 Direction d = (Direction)(((int)(b->spantype - 1)) * 2 - 1);
59 beam_mom_drul_[d] = get_staff_info ().musical_l ()->when ();
64 Plet_req* p = dynamic_cast <Plet_req *> (req_l);
68 if (bool (plet_spanner_p_) == bool (p->spantype == Span_req::START))
71 Direction d = (!plet_spanner_p_) ? LEFT : RIGHT;
72 if (span_reqs_drul_[d] && !span_reqs_drul_[d]->equal_b (req_l))
75 span_reqs_drul_[d] = p;
76 span_mom_drul_[d] = get_staff_info ().musical_l ()->when ();
81 Plet_engraver::do_removal_processing ()
85 span_reqs_drul_[LEFT]->warning (_ ("unterminated plet"));
86 plet_spanner_p_->unlink ();
87 delete plet_spanner_p_;
89 span_reqs_drul_[RIGHT] = span_reqs_drul_[LEFT] = 0;
94 Plet_engraver::do_process_requests ()
96 if (plet_spanner_p_ || !span_reqs_drul_[LEFT])
99 plet_spanner_p_ = new Plet_spanner;
100 plet_spanner_p_->tdef_p_->text_str_ = to_str (span_reqs_drul_[LEFT]->plet_i_);
102 announce_element (Score_element_info (plet_spanner_p_, span_reqs_drul_[LEFT]));
106 Plet_engraver::do_pre_move_processing ()
108 if (!plet_spanner_p_ || !span_reqs_drul_[RIGHT])
111 Scalar prop = get_property ("pletvisibility");
113 plet_spanner_p_->visibility_i_ = prop;
115 if ((beam_mom_drul_[LEFT] <= span_mom_drul_[LEFT])
116 && (beam_mom_drul_[RIGHT] >= span_mom_drul_[RIGHT]))
117 plet_spanner_p_->visibility_i_ &= ~2;
119 if (plet_spanner_p_->visibility_i_)
120 typeset_element (plet_spanner_p_);
123 plet_spanner_p_->unlink ();
124 delete plet_spanner_p_;
128 span_reqs_drul_[RIGHT] = span_reqs_drul_[LEFT] = 0;