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
118 staff_side_p_ = new Staff_side_item;
119 staff_side_p_->set_elt_property (script_priority_scm_sym,
122 staff_side_p_->set_victim (text_p_);
123 staff_side_p_->axis_ = Y_AXIS;
124 staff_side_p_->dir_ = DOWN;
127 SCM prop = get_property ("verticalDirection", 0);
130 staff_side_p_->dir_ = to_dir (prop);
133 prop = get_property ("dynamicDirection", 0);
134 if (SCM_NUMBERP(prop))
136 staff_side_p_->dir_ = to_dir (prop);
140 staff_side_p_->dir_ = absd->dir_;
143 prop = get_property ("dynamicPadding", 0);
144 if (SCM_NUMBERP(prop))
146 staff_side_p_->set_elt_property (padding_scm_sym, prop);
148 announce_element (Score_element_info (text_p_, absd));
149 announce_element (Score_element_info (staff_side_p_, absd));
151 else if (Span_req *span_l
152 = dynamic_cast <Span_req *> (dynamic_req_l_arr_[i]))
154 if (span_l->span_dir_ == STOP)
158 span_l->warning (_ ("Can't find (de)crescendo to end"));
162 assert (!to_end_cresc_p_);
163 to_end_cresc_p_ =cresc_p_;
164 to_end_ss_span_p_ = ss_span_p_ ;
172 SCM prop = get_property ("verticalDirection", 0);
175 to_end_ss_span_p_->dir_ = to_dir (prop);
177 prop = get_property ("dynamicDirection", 0);
180 to_end_ss_span_p_->dir_ = to_dir (prop);
182 prop = get_property ("dynamicPadding", 0);
183 if (SCM_NUMBERP(prop))
185 to_end_ss_span_p_->set_elt_property (padding_scm_sym,prop);
189 else if (span_l->span_dir_ == START)
191 cresc_req_l_ = span_l;
192 assert (!new_cresc_p);
193 new_cresc_p = new Crescendo;
194 new_cresc_p->grow_dir_ = (span_l->span_type_str_ == "crescendo") ? BIGGER : SMALLER;
195 announce_element (Score_element_info (new_cresc_p, span_l));
197 new_sss_p = new Staff_side_spanner;
198 new_sss_p->set_victim (new_cresc_p);
199 new_sss_p->axis_ = Y_AXIS;
201 // new_sss_p->set_elt_property (dangling_scm_sym, SCM_BOOL_T);
202 announce_element (Score_element_info (new_sss_p, span_l));
211 ::warning (_ ("Too many crescendi here"));
212 typeset_element (cresc_p_);
213 typeset_element (ss_span_p_);
218 cresc_p_ = new_cresc_p;
219 ss_span_p_ = new_sss_p;
220 cresc_p_->set_bounds(LEFT,get_staff_info().musical_pcol_l ());
221 ss_span_p_->set_bounds (LEFT,get_staff_info().musical_pcol_l ());
224 cresc_p_->dyn_b_drul_[LEFT] = true;
226 to_end_cresc_p_->dyn_b_drul_[RIGHT] = true;
232 Dynamic_engraver::do_pre_move_processing()
239 ADD_THIS_TRANSLATOR(Dynamic_engraver);
242 Dynamic_engraver::do_removal_processing ()
246 typeset_element (cresc_p_ );
247 typeset_element (ss_span_p_);
249 cresc_req_l_->warning (_ ("unended crescendo"));
257 Dynamic_engraver::typeset_all ()
261 to_end_cresc_p_->set_bounds(RIGHT,get_staff_info().musical_pcol_l ());
262 to_end_ss_span_p_->set_bounds(RIGHT,get_staff_info().musical_pcol_l ());
263 typeset_element (to_end_cresc_p_);
264 typeset_element (to_end_ss_span_p_);
266 to_end_ss_span_p_ =0;
271 typeset_element (text_p_);
272 typeset_element (staff_side_p_);
280 Dynamic_engraver::acknowledge_element (Score_element_info i)
282 if (dynamic_cast<Stem *> (i.elem_l_)
283 || dynamic_cast<Note_head *> (i.elem_l_)
287 staff_side_p_->add_support (i.elem_l_);
289 if (to_end_ss_span_p_)
290 to_end_ss_span_p_->add_support (i.elem_l_);
293 ss_span_p_->add_support (i.elem_l_);