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 text_p_->set_elt_property ("style", gh_str02scm ("dynamic"));
119 staff_side_p_ = new Staff_side_item;
120 staff_side_p_->set_elt_property ("script-priority",
123 staff_side_p_->set_victim (text_p_);
124 staff_side_p_->axis_ = Y_AXIS;
125 staff_side_p_->set_direction (DOWN);
128 SCM prop = get_property ("verticalDirection", 0);
131 staff_side_p_->set_direction (to_dir (prop));
134 prop = get_property ("dynamicDirection", 0);
135 if (gh_number_p(prop))
137 staff_side_p_->set_direction (to_dir (prop));
139 if (absd->get_direction ())
141 staff_side_p_->set_direction (absd->get_direction ());
144 prop = get_property ("dynamicPadding", 0);
145 if (gh_number_p(prop))
147 staff_side_p_->set_elt_property ("padding", prop);
149 announce_element (Score_element_info (text_p_, absd));
150 announce_element (Score_element_info (staff_side_p_, absd));
152 else if (Span_req *span_l
153 = dynamic_cast <Span_req *> (dynamic_req_l_arr_[i]))
155 if (span_l->span_dir_ == STOP)
159 span_l->warning (_ ("Can't find (de)crescendo to end"));
163 assert (!to_end_cresc_p_);
164 to_end_cresc_p_ =cresc_p_;
165 to_end_ss_span_p_ = ss_span_p_ ;
173 SCM prop = get_property ("verticalDirection", 0);
176 to_end_ss_span_p_->set_direction (to_dir (prop));
178 prop = get_property ("dynamicDirection", 0);
181 to_end_ss_span_p_->set_direction (to_dir (prop));
183 prop = get_property ("dynamicPadding", 0);
184 if (gh_number_p(prop))
186 to_end_ss_span_p_->set_elt_property ("padding",prop);
190 else if (span_l->span_dir_ == START)
192 cresc_req_l_ = span_l;
193 assert (!new_cresc_p);
194 new_cresc_p = new Crescendo;
195 new_cresc_p->grow_dir_ = (span_l->span_type_str_ == "crescendo") ? BIGGER : SMALLER;
196 announce_element (Score_element_info (new_cresc_p, span_l));
198 new_sss_p = new Staff_side_spanner;
199 new_sss_p->set_victim (new_cresc_p);
200 new_sss_p->axis_ = Y_AXIS;
202 // new_sss_p->set_elt_property ("dangling", SCM_BOOL_T);
203 announce_element (Score_element_info (new_sss_p, span_l));
212 ::warning (_ ("Too many crescendi here"));
213 typeset_element (cresc_p_);
214 typeset_element (ss_span_p_);
219 cresc_p_ = new_cresc_p;
220 ss_span_p_ = new_sss_p;
221 cresc_p_->set_bounds(LEFT,get_staff_info().musical_pcol_l ());
222 ss_span_p_->set_bounds (LEFT,get_staff_info().musical_pcol_l ());
225 cresc_p_->dyn_b_drul_[LEFT] = true;
227 to_end_cresc_p_->dyn_b_drul_[RIGHT] = true;
233 Dynamic_engraver::do_pre_move_processing()
240 ADD_THIS_TRANSLATOR(Dynamic_engraver);
243 Dynamic_engraver::do_removal_processing ()
247 typeset_element (cresc_p_ );
248 typeset_element (ss_span_p_);
250 cresc_req_l_->warning (_ ("unended crescendo"));
258 Dynamic_engraver::typeset_all ()
262 to_end_cresc_p_->set_bounds(RIGHT,get_staff_info().musical_pcol_l ());
263 to_end_ss_span_p_->set_bounds(RIGHT,get_staff_info().musical_pcol_l ());
264 typeset_element (to_end_cresc_p_);
265 typeset_element (to_end_ss_span_p_);
267 to_end_ss_span_p_ =0;
272 typeset_element (text_p_);
273 typeset_element (staff_side_p_);
281 Dynamic_engraver::acknowledge_element (Score_element_info i)
283 if (dynamic_cast<Stem *> (i.elem_l_)
284 || dynamic_cast<Note_head *> (i.elem_l_)
288 staff_side_p_->add_support (i.elem_l_);
290 if (to_end_ss_span_p_)
291 to_end_ss_span_p_->add_support (i.elem_l_);
294 ss_span_p_->add_support (i.elem_l_);