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 "musical-request.hh"
12 #include "paper-def.hh"
13 #include "score-column.hh"
14 #include "staff-symbol.hh"
15 #include "note-column.hh"
16 #include "text-item.hh"
17 #include "staff-side.hh"
18 #include "engraver.hh"
20 #include "note-head.hh"
23 print text & hairpin dynamics.
25 class Dynamic_engraver : public Engraver
28 Staff_side_item * staff_side_p_;
29 Staff_side_spanner * ss_span_p_;
30 Staff_side_spanner * to_end_ss_span_p_;
33 Crescendo * to_end_cresc_p_;
35 Span_req * cresc_req_l_;
36 Array<Request*> dynamic_req_l_arr_;
39 VIRTUAL_COPY_CONS(Translator);
43 virtual void do_removal_processing ();
44 virtual void acknowledge_element (Score_element_info);
45 virtual bool do_try_music (Music *req_l);
46 virtual void do_process_requests();
47 virtual void do_pre_move_processing();
48 virtual void do_post_move_processing();
53 Dynamic_engraver::Dynamic_engraver()
55 do_post_move_processing();
58 to_end_cresc_p_ = cresc_p_ = 0;
59 ss_span_p_ = to_end_ss_span_p_=0;
64 Dynamic_engraver::do_post_move_processing()
66 dynamic_req_l_arr_.clear();
70 Dynamic_engraver::do_try_music (Music * m)
72 Request * r = dynamic_cast<Request*> (m);
74 if(Text_script_req * d = dynamic_cast <Text_script_req *> (r))
76 if (d->style_str_ != "dynamic")
79 else if (Span_req * s = dynamic_cast <Span_req*> (r))
81 if (s-> span_type_str_ != "crescendo"
82 && s->span_type_str_ != "decrescendo")
88 for (int i=0; i < dynamic_req_l_arr_.size (); i++)
89 if (r->equal_b (dynamic_req_l_arr_[i]))
92 dynamic_req_l_arr_.push (r);
98 Dynamic_engraver::do_process_requests()
100 Crescendo* new_cresc_p=0;
101 Staff_side_spanner * new_sss_p =0;
102 for (int i=0; i < dynamic_req_l_arr_.size(); i++)
104 if (Text_script_req *absd =
105 dynamic_cast<Text_script_req *> ( dynamic_req_l_arr_[i]))
109 dynamic_req_l_arr_[i]->warning (_("Got a dynamic already. Continuing dazed and confused"));
113 String loud = absd->text_str_;
115 text_p_ = new Text_item;
116 text_p_->text_str_ = loud; // ugh
117 Scalar prop = get_property ("dynamicStyle", 0);
119 text_p_->style_str_ = prop.length_i () ? prop : "dynamic";
121 staff_side_p_ = new Staff_side_item;
122 staff_side_p_->set_elt_property (script_priority_scm_sym,
125 staff_side_p_->set_victim (text_p_);
126 staff_side_p_->axis_ = Y_AXIS;
127 staff_side_p_->dir_ = DOWN;
130 prop = get_property ("verticalDirection", 0);
133 staff_side_p_->dir_ = Direction (int (prop));
136 prop = get_property ("dynamicDir", 0);
139 staff_side_p_->dir_ = (Direction) (int) prop;
143 staff_side_p_->dir_ = absd->dir_;
146 prop = get_property ("dynamicPadding", 0);
149 staff_side_p_->set_elt_property (padding_scm_sym,
150 gh_double2scm(Real(prop)));
152 announce_element (Score_element_info (text_p_, absd));
153 announce_element (Score_element_info (staff_side_p_, absd));
155 else if (Span_req *span_l
156 = dynamic_cast <Span_req *> (dynamic_req_l_arr_[i]))
158 if (span_l->span_dir_ == STOP)
162 span_l->warning (_ ("can't find (de)crescendo to end"));
166 assert (!to_end_cresc_p_);
167 to_end_cresc_p_ =cresc_p_;
168 to_end_ss_span_p_ = ss_span_p_ ;
176 Scalar prop = get_property ("verticalDirection", 0);
179 to_end_ss_span_p_->dir_ = Direction (int (prop));
181 prop = get_property ("dynamicDir", 0);
184 to_end_ss_span_p_->dir_ = (Direction) (int) prop;
186 prop = get_property ("dynamicPadding", 0);
189 to_end_ss_span_p_->set_elt_property (padding_scm_sym,
190 gh_double2scm(Real(prop)));
194 else if (span_l->span_dir_ == START)
196 cresc_req_l_ = span_l;
197 assert (!new_cresc_p);
198 new_cresc_p = new Crescendo;
199 new_cresc_p->grow_dir_ = (span_l->span_type_str_ == "crescendo") ? BIGGER : SMALLER;
200 announce_element (Score_element_info (new_cresc_p, span_l));
202 new_sss_p = new Staff_side_spanner;
203 new_sss_p->set_victim (new_cresc_p);
204 new_sss_p->axis_ = Y_AXIS;
206 // new_sss_p->set_elt_property (dangling_scm_sym, SCM_BOOL_T);
207 announce_element (Score_element_info (new_sss_p, span_l));
216 ::warning (_ ("Too many crescendi here"));
217 typeset_element (cresc_p_);
218 typeset_element (ss_span_p_);
223 cresc_p_ = new_cresc_p;
224 ss_span_p_ = new_sss_p;
225 cresc_p_->set_bounds(LEFT,get_staff_info().musical_pcol_l ());
226 ss_span_p_->set_bounds (LEFT,get_staff_info().musical_pcol_l ());
229 cresc_p_->dyn_b_drul_[LEFT] = true;
231 to_end_cresc_p_->dyn_b_drul_[RIGHT] = true;
237 Dynamic_engraver::do_pre_move_processing()
244 ADD_THIS_TRANSLATOR(Dynamic_engraver);
247 Dynamic_engraver::do_removal_processing ()
251 typeset_element (cresc_p_ );
252 typeset_element (ss_span_p_);
254 cresc_req_l_->warning (_ ("unended crescendo"));
262 Dynamic_engraver::typeset_all ()
266 to_end_cresc_p_->set_bounds(RIGHT,get_staff_info().musical_pcol_l ());
267 to_end_ss_span_p_->set_bounds(RIGHT,get_staff_info().musical_pcol_l ());
268 typeset_element (to_end_cresc_p_);
269 typeset_element (to_end_ss_span_p_);
271 to_end_ss_span_p_ =0;
276 typeset_element (text_p_);
277 typeset_element (staff_side_p_);
285 Dynamic_engraver::acknowledge_element (Score_element_info i)
287 if (dynamic_cast<Stem *> (i.elem_l_)
288 || dynamic_cast<Note_head *> (i.elem_l_)
292 staff_side_p_->add_support (i.elem_l_);
294 if (to_end_ss_span_p_)
295 to_end_ss_span_p_->add_support (i.elem_l_);
298 ss_span_p_->add_support (i.elem_l_);