2 dynamic-reg.cc -- implement Dynamic_engraver
4 source file of the GNU LilyPond music typesetter
6 (c) 1997--1999 Han-Wen Nienhuys <hanwen@cs.uu.nl>
9 #include "crescendo.hh"
10 #include "dynamic-engraver.hh"
11 #include "musical-request.hh"
13 #include "paper-def.hh"
14 #include "score-column.hh"
15 #include "staff-symbol.hh"
16 #include "note-column.hh"
17 #include "text-item.hh"
18 #include "staff-side.hh"
19 #include "engraver.hh"
21 #include "note-head.hh"
24 print text & hairpin dynamics.
26 class Dynamic_engraver : public Engraver
29 Staff_side_item * staff_side_p_;
30 Staff_side_spanner * ss_span_p_;
31 Staff_side_spanner * to_end_ss_span_p_;
34 Crescendo * to_end_cresc_p_;
36 Span_req * cresc_req_l_;
37 Array<Request*> dynamic_req_l_arr_;
40 VIRTUAL_COPY_CONS(Translator);
44 virtual void do_removal_processing ();
45 virtual void acknowledge_element (Score_element_info);
46 virtual bool do_try_music (Music *req_l);
47 virtual void do_process_requests();
48 virtual void do_pre_move_processing();
49 virtual void do_post_move_processing();
54 Dynamic_engraver::Dynamic_engraver()
56 do_post_move_processing();
59 to_end_cresc_p_ = cresc_p_ = 0;
60 ss_span_p_ = to_end_ss_span_p_=0;
65 Dynamic_engraver::do_post_move_processing()
67 dynamic_req_l_arr_.clear();
71 Dynamic_engraver::do_try_music (Music * m)
73 Request * r = dynamic_cast<Request*> (m);
75 if(Text_script_req * d = dynamic_cast <Text_script_req *> (r))
77 if (d->style_str_ != "dynamic")
80 else if (Span_req * s = dynamic_cast <Span_req*> (r))
82 if (s-> span_type_str_ != "crescendo"
83 && s->span_type_str_ != "decrescendo")
89 for (int i=0; i < dynamic_req_l_arr_.size (); i++)
90 if (r->equal_b (dynamic_req_l_arr_[i]))
93 dynamic_req_l_arr_.push (r);
99 Dynamic_engraver::do_process_requests()
101 Crescendo* new_cresc_p=0;
102 Staff_side_spanner * new_sss_p =0;
103 for (int i=0; i < dynamic_req_l_arr_.size(); i++)
105 if (Text_script_req *absd =
106 dynamic_cast<Text_script_req *> ( dynamic_req_l_arr_[i]))
110 dynamic_req_l_arr_[i]->warning (_("Got a dynamic already. Continuing dazed and confused"));
114 String loud = absd->text_str_;
116 text_p_ = new Text_item;
117 text_p_->text_str_ = loud; // ugh
118 Scalar prop = get_property ("dynamicStyle", 0);
120 text_p_->style_str_ = prop.length_i () ? prop : "dynamic";
122 staff_side_p_ = new Staff_side_item;
123 staff_side_p_->set_elt_property (script_priority_scm_sym,
126 staff_side_p_->set_victim (text_p_);
127 staff_side_p_->axis_ = Y_AXIS;
130 prop = get_property ("dynamicDir", 0);
133 staff_side_p_->dir_ = (Direction) (int) prop;
136 prop = get_property ("dynamicPadding", 0);
139 staff_side_p_->set_elt_property (padding_scm_sym,
140 gh_double2scm(Real(prop)));
142 announce_element (Score_element_info (text_p_, absd));
143 announce_element (Score_element_info (staff_side_p_, absd));
145 else if (Span_req *span_l
146 = dynamic_cast <Span_req *> (dynamic_req_l_arr_[i]))
148 if (span_l->span_dir_ == STOP)
152 span_l->warning (_ ("can't find (de)crescendo to end"));
156 assert (!to_end_cresc_p_);
157 to_end_cresc_p_ =cresc_p_;
158 to_end_ss_span_p_ = ss_span_p_ ;
162 Scalar prop = get_property ("dynamicDir", 0);
165 to_end_ss_span_p_->dir_ = (Direction) (int) prop;
170 else if (span_l->span_dir_ == START)
172 cresc_req_l_ = span_l;
173 assert (!new_cresc_p);
174 new_cresc_p = new Crescendo;
175 new_cresc_p->grow_dir_ = (span_l->span_type_str_ == "crescendo") ? BIGGER : SMALLER;
176 announce_element (Score_element_info (new_cresc_p, span_l));
178 new_sss_p = new Staff_side_spanner;
179 new_sss_p->set_victim (new_cresc_p);
180 new_sss_p->axis_ = Y_AXIS;
182 // new_sss_p->set_elt_property (dangling_scm_sym, SCM_BOOL_T);
183 announce_element (Score_element_info (new_sss_p, span_l));
192 ::warning (_ ("Too many crescendi here"));
193 typeset_element (cresc_p_);
194 typeset_element (ss_span_p_);
199 cresc_p_ = new_cresc_p;
200 ss_span_p_ = new_sss_p;
201 cresc_p_->set_bounds(LEFT,get_staff_info().musical_pcol_l ());
202 ss_span_p_->set_bounds (LEFT,get_staff_info().musical_pcol_l ());
205 cresc_p_->dyn_b_drul_[LEFT] = true;
207 to_end_cresc_p_->dyn_b_drul_[RIGHT] = true;
213 Dynamic_engraver::do_pre_move_processing()
220 ADD_THIS_TRANSLATOR(Dynamic_engraver);
223 Dynamic_engraver::do_removal_processing ()
227 typeset_element (cresc_p_ );
228 typeset_element (ss_span_p_);
230 cresc_req_l_->warning (_ ("unended crescendo"));
238 Dynamic_engraver::typeset_all ()
242 to_end_cresc_p_->set_bounds(RIGHT,get_staff_info().musical_pcol_l ());
243 to_end_ss_span_p_->set_bounds(RIGHT,get_staff_info().musical_pcol_l ());
244 typeset_element (to_end_cresc_p_);
245 typeset_element (to_end_ss_span_p_);
247 to_end_ss_span_p_ =0;
252 typeset_element (text_p_);
253 typeset_element (staff_side_p_);
261 Dynamic_engraver::acknowledge_element (Score_element_info i)
263 if (dynamic_cast<Stem *> (i.elem_l_)
264 || dynamic_cast<Note_head *> (i.elem_l_)
268 staff_side_p_->add_support (i.elem_l_);
270 if (to_end_ss_span_p_)
271 to_end_ss_span_p_->add_support (i.elem_l_);
274 ss_span_p_->add_support (i.elem_l_);