2 dynamic-reg.cc -- implement Dynamic_engraver
4 source file of the GNU LilyPond music typesetter
6 (c) 1997--1998 Han-Wen Nienhuys <hanwen@cs.uu.nl>
9 #include "crescendo.hh"
10 #include "dynamic-engraver.hh"
11 #include "musical-request.hh"
12 #include "text-item.hh"
14 #include "paper-def.hh"
15 #include "score-column.hh"
16 #include "staff-sym.hh"
17 #include "note-column.hh"
19 Dynamic_engraver::Dynamic_engraver()
21 do_post_move_processing();
24 to_end_cresc_p_ = cresc_p_ = 0;
29 Dynamic_engraver::do_post_move_processing()
31 dynamic_req_l_arr_.clear();
35 Dynamic_engraver::do_try_request (Request * r)
37 Musical_req * m = dynamic_cast <Musical_req *> (r);
40 Dynamic_req * d = dynamic_cast <Dynamic_req *> (m);
45 if (cresc_p_ && dynamic_cast <Span_dynamic_req *> (d)
46 && dynamic_cast <Span_dynamic_req *> (d)->spantype == Span_req::START)
49 for (int i=0; i < dynamic_req_l_arr_.size (); i++)
50 if (d->equal_b (dynamic_req_l_arr_[i]))
53 dynamic_req_l_arr_.push (dynamic_cast <Dynamic_req *> (m));
57 Dynamic_engraver::do_process_requests()
59 Crescendo* new_cresc_p=0;
60 for (int i=0; i < dynamic_req_l_arr_.size(); i++)
62 Dynamic_req *dreq_l = dynamic_req_l_arr_[i];
63 if (dynamic_cast <Absolute_dynamic_req *> (dreq_l))
68 dynamic_req_l_arr_[i]->warning (_("Got a dynamic already. Continuing dazed and confused"));
72 Text_def * td_p = new Text_def;
73 td_p->align_dir_ = CENTER;
74 String loud = dynamic_cast <Absolute_dynamic_req *> (dreq_l)->loudness_str ();
75 td_p->text_str_ = paper ()->lookup_l (0)->dynamic (loud).str_;
76 td_p->style_str_ = "dynamic";
80 dynamic_p_ = new Text_item (td_p);
81 announce_element (Score_element_info (dynamic_p_, dreq_l));
83 else if (dynamic_cast <Span_dynamic_req *> (dreq_l))
85 Span_dynamic_req* span_l = dynamic_cast <Span_dynamic_req *> (dreq_l);
86 if (span_l->spantype == Span_req::STOP)
90 span_l->warning (_ ("can't find (de)crescendo to end"));
94 assert (!to_end_cresc_p_);
95 to_end_cresc_p_ =cresc_p_;
99 else if (span_l->spantype == Span_req::START)
101 cresc_req_l_ = span_l;
102 assert (!new_cresc_p);
103 new_cresc_p = new Crescendo;
104 new_cresc_p->grow_dir_ = span_l->dynamic_dir_;
105 announce_element (Score_element_info (new_cresc_p, span_l));
114 ::warning (_ ("Too many crescendi here"));
115 typeset_element (cresc_p_);
119 cresc_p_ = new_cresc_p;
120 cresc_p_->set_bounds(LEFT,get_staff_info().musical_l ());
123 cresc_p_->dyn_b_drul_[LEFT] = true;
129 Dynamic_engraver::do_pre_move_processing()
131 Staff_symbol* s_l = get_staff_info().staff_sym_l_;
135 to_end_cresc_p_->dyn_b_drul_[RIGHT]=true;
138 Scalar prop = get_property ("dynamicdir");
141 to_end_cresc_p_->dir_ = (Direction) (int) prop;
143 to_end_cresc_p_->set_bounds(RIGHT,get_staff_info().musical_l ());
144 to_end_cresc_p_->add_support (s_l);
145 typeset_element (to_end_cresc_p_);
150 Scalar prop = get_property ("dynamicdir");
153 dynamic_p_->dir_ = (Direction) (int) prop;
156 dynamic_p_->add_support (s_l);
157 typeset_element (dynamic_p_);
163 IMPLEMENT_IS_TYPE_B1(Dynamic_engraver,Engraver);
164 ADD_THIS_TRANSLATOR(Dynamic_engraver);
167 Dynamic_engraver::do_removal_processing ()
171 typeset_element (cresc_p_ );
173 cresc_req_l_->warning (_ ("unended crescendo"));
178 typeset_element (to_end_cresc_p_);
183 typeset_element (dynamic_p_);
189 Dynamic_engraver::acknowledge_element (Score_element_info i)
191 if (i.elem_l_->is_type_b (Note_column::static_name ()))
194 dynamic_p_->add_support (i.elem_l_);
197 to_end_cresc_p_->add_support (i.elem_l_);
200 cresc_p_->add_support (i.elem_l_);