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 "g-text-item.hh"
18 #include "g-staff-side.hh"
19 #include "engraver.hh"
21 #include "note-head.hh"
24 print text & hairpin dynamics.
26 class Dynamic_engraver : public Engraver
28 G_text_item * text_p_;
29 G_staff_side_item * staff_side_p_;
30 G_staff_side_spanner * ss_span_p_;
31 G_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 G_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 G_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 G_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;
137 announce_element (Score_element_info (text_p_, absd));
138 announce_element (Score_element_info (staff_side_p_, absd));
140 else if (Span_req *span_l
141 = dynamic_cast <Span_req *> (dynamic_req_l_arr_[i]))
143 if (span_l->span_dir_ == STOP)
147 span_l->warning (_ ("can't find (de)crescendo to end"));
151 assert (!to_end_cresc_p_);
152 to_end_cresc_p_ =cresc_p_;
153 to_end_ss_span_p_ = ss_span_p_ ;
157 Scalar prop = get_property ("dynamicDir", 0);
160 to_end_ss_span_p_->dir_ = (Direction) (int) prop;
165 else if (span_l->span_dir_ == START)
167 cresc_req_l_ = span_l;
168 assert (!new_cresc_p);
169 new_cresc_p = new Crescendo;
170 new_cresc_p->grow_dir_ = (span_l->span_type_str_ == "crescendo") ? BIGGER : SMALLER;
171 announce_element (Score_element_info (new_cresc_p, span_l));
173 new_sss_p = new G_staff_side_spanner;
174 new_sss_p->set_victim (new_cresc_p);
175 new_sss_p->axis_ = Y_AXIS;
176 announce_element (Score_element_info (new_sss_p, span_l));
185 ::warning (_ ("Too many crescendi here"));
186 typeset_element (cresc_p_);
187 typeset_element (ss_span_p_);
192 cresc_p_ = new_cresc_p;
193 ss_span_p_ = new_sss_p;
194 cresc_p_->set_bounds(LEFT,get_staff_info().musical_pcol_l ());
195 ss_span_p_->set_bounds (LEFT,get_staff_info().musical_pcol_l ());
198 cresc_p_->dyn_b_drul_[LEFT] = true;
200 to_end_cresc_p_->dyn_b_drul_[RIGHT] = true;
206 Dynamic_engraver::do_pre_move_processing()
213 ADD_THIS_TRANSLATOR(Dynamic_engraver);
216 Dynamic_engraver::do_removal_processing ()
220 typeset_element (cresc_p_ );
221 typeset_element (ss_span_p_);
223 cresc_req_l_->warning (_ ("unended crescendo"));
231 Dynamic_engraver::typeset_all ()
235 to_end_cresc_p_->set_bounds(RIGHT,get_staff_info().musical_pcol_l ());
236 to_end_ss_span_p_->set_bounds(RIGHT,get_staff_info().musical_pcol_l ());
237 typeset_element (to_end_cresc_p_);
238 typeset_element (to_end_ss_span_p_);
240 to_end_ss_span_p_ =0;
245 typeset_element (text_p_);
246 typeset_element (staff_side_p_);
254 Dynamic_engraver::acknowledge_element (Score_element_info i)
256 if (dynamic_cast<Stem *> (i.elem_l_)
257 || dynamic_cast<Note_head *> (i.elem_l_)
261 staff_side_p_->add_support (i.elem_l_);
263 if (to_end_ss_span_p_)
264 to_end_ss_span_p_->add_support (i.elem_l_);
267 ss_span_p_->add_support (i.elem_l_);