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_music (Music * r)
37 if(Dynamic_req * d = dynamic_cast <Dynamic_req *> (r))
39 for (int i=0; i < dynamic_req_l_arr_.size (); i++)
40 if (d->equal_b (dynamic_req_l_arr_[i]))
43 dynamic_req_l_arr_.push (d);
49 Dynamic_engraver::do_process_requests()
51 Crescendo* new_cresc_p=0;
52 for (int i=0; i < dynamic_req_l_arr_.size(); i++)
54 Dynamic_req *dreq_l = dynamic_req_l_arr_[i];
55 if (Absolute_dynamic_req *absd = dynamic_cast<Absolute_dynamic_req *> (dreq_l))
60 dynamic_req_l_arr_[i]->warning (_("Got a dynamic already. Continuing dazed and confused"));
64 Text_def * td_p = new Text_def;
65 String loud = absd->loudness_str ();
66 td_p->text_str_ = paper ()->lookup_l (0)->dynamic (loud).str_; // ugh
67 td_p->style_str_ = "dynamic";
68 td_p->align_dir_ = RIGHT;
69 Real nw_f = paper ()->note_width () * 0.8;
71 dynamic_p_ = new Text_item (td_p);
72 dynamic_p_->translate (Offset (nw_f, 0));
74 announce_element (Score_element_info (dynamic_p_, dreq_l));
76 else if (Span_dynamic_req *span_l = dynamic_cast <Span_dynamic_req *> (dreq_l))
78 if (span_l->spantype_ == STOP)
82 span_l->warning (_ ("can't find (de)crescendo to end"));
86 assert (!to_end_cresc_p_);
87 to_end_cresc_p_ =cresc_p_;
91 else if (span_l->spantype_ == START)
93 cresc_req_l_ = span_l;
94 assert (!new_cresc_p);
95 new_cresc_p = new Crescendo;
96 new_cresc_p->grow_dir_ = span_l->dynamic_dir_;
97 announce_element (Score_element_info (new_cresc_p, span_l));
106 ::warning (_ ("Too many crescendi here"));
107 typeset_element (cresc_p_);
111 cresc_p_ = new_cresc_p;
112 cresc_p_->set_bounds(LEFT,get_staff_info().musical_l ());
115 cresc_p_->dyn_b_drul_[LEFT] = true;
121 Dynamic_engraver::do_pre_move_processing()
123 Staff_symbol* s_l = get_staff_info().staff_sym_l_;
127 to_end_cresc_p_->dyn_b_drul_[RIGHT]=true;
130 Scalar prop = get_property ("dynamicdir");
133 to_end_cresc_p_->dir_ = (Direction) (int) prop;
135 to_end_cresc_p_->set_bounds(RIGHT,get_staff_info().musical_l ());
136 to_end_cresc_p_->add_support (s_l);
137 typeset_element (to_end_cresc_p_);
142 Scalar prop = get_property ("dynamicdir");
145 dynamic_p_->dir_ = (Direction) (int) prop;
148 dynamic_p_->add_support (s_l);
149 typeset_element (dynamic_p_);
156 ADD_THIS_TRANSLATOR(Dynamic_engraver);
159 Dynamic_engraver::do_removal_processing ()
163 typeset_element (cresc_p_ );
165 cresc_req_l_->warning (_ ("unended crescendo"));
170 typeset_element (to_end_cresc_p_);
175 typeset_element (dynamic_p_);
181 Dynamic_engraver::acknowledge_element (Score_element_info i)
183 if (dynamic_cast<Note_column *> (i.elem_l_))
186 dynamic_p_->add_support (i.elem_l_);
189 to_end_cresc_p_->add_support (i.elem_l_);
192 cresc_p_->add_support (i.elem_l_);