2 dynamic-reg.cc -- implement Dynamic_engraver
4 source file of the GNU LilyPond music typesetter
6 (c) 1997--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
9 #include "crescendo.hh"
10 #include "musical-request.hh"
12 #include "paper-def.hh"
13 #include "paper-column.hh"
14 #include "staff-symbol.hh"
15 #include "note-column.hh"
16 #include "text-item.hh"
17 #include "side-position-interface.hh"
18 #include "engraver.hh"
20 #include "note-head.hh"
23 print text & hairpin dynamics.
25 class Dynamic_engraver : public Engraver
28 Crescendo * to_end_cresc_p_;
31 Span_req * cresc_req_l_;
32 Array<Request*> dynamic_req_l_arr_;
35 VIRTUAL_COPY_CONS(Translator);
39 virtual void do_removal_processing ();
40 virtual void acknowledge_element (Score_element_info);
41 virtual bool do_try_music (Music *req_l);
42 virtual void do_process_requests();
43 virtual void do_pre_move_processing();
44 virtual void do_post_move_processing();
45 virtual void typeset_element (Score_element*);
50 Dynamic_engraver::Dynamic_engraver()
52 do_post_move_processing();
55 to_end_cresc_p_ = cresc_p_ = 0;
61 Dynamic_engraver::do_post_move_processing()
63 dynamic_req_l_arr_.clear();
67 Dynamic_engraver::do_try_music (Music * m)
69 Request * r = dynamic_cast<Request*> (m);
71 if(Text_script_req * d = dynamic_cast <Text_script_req *> (r))
73 if (d->style_str_ != "dynamic")
76 else if (Span_req * s = dynamic_cast <Span_req*> (r))
78 if (s-> span_type_str_ != "crescendo"
79 && s->span_type_str_ != "decrescendo")
85 for (int i=0; i < dynamic_req_l_arr_.size (); i++)
86 if (r->equal_b (dynamic_req_l_arr_[i]))
89 dynamic_req_l_arr_.push (r);
95 Dynamic_engraver::do_process_requests()
97 Crescendo* new_cresc_p=0;
99 for (int i=0; i < dynamic_req_l_arr_.size(); i++)
101 if (Text_script_req *absd =
102 dynamic_cast<Text_script_req *> ( dynamic_req_l_arr_[i]))
106 dynamic_req_l_arr_[i]->warning (_("Got a dynamic already. Continuing dazed and confused."));
110 String loud = absd->text_str_;
112 text_p_ = new Text_item;
113 text_p_->set_elt_property ("text",
114 ly_str02scm (loud.ch_C()));
115 text_p_->set_elt_property ("style", gh_str02scm ("dynamic"));
116 text_p_->set_elt_property ("script-priority",
119 Side_position_interface (text_p_).set_axis (Y_AXIS);
122 if (absd->get_direction ())
124 text_p_->set_elt_property ("direction", gh_int2scm (absd->get_direction ()));
131 SCM prop = get_property ("dynamicDirection", 0);
134 prop = get_property ("verticalDirection", 0);
137 if (isdir_b (prop) && to_dir (prop))
138 text_p_->set_elt_property ("direction", prop);
140 prop = get_property ("dynamicPadding", 0);
141 if (gh_number_p(prop))
143 text_p_->set_elt_property ("padding", prop);
145 announce_element (Score_element_info (text_p_, absd));
147 else if (Span_req *span_l
148 = dynamic_cast <Span_req *> (dynamic_req_l_arr_[i]))
150 if (span_l->span_dir_ == STOP)
154 span_l->warning (_ ("Can't find (de)crescendo to end"));
158 assert (!to_end_cresc_p_);
159 to_end_cresc_p_ =cresc_p_;
164 else if (span_l->span_dir_ == START)
166 cresc_req_l_ = span_l;
167 assert (!new_cresc_p);
168 new_cresc_p = new Crescendo;
170 ->set_elt_property ("grow-direction",
171 gh_int2scm ((span_l->span_type_str_ == "crescendo") ? BIGGER : SMALLER));
173 side_position (new_cresc_p).set_axis (Y_AXIS);
174 announce_element (Score_element_info (new_cresc_p, span_l));
183 ::warning (_ ("Too many crescendi here"));
185 typeset_element (cresc_p_);
190 cresc_p_ = new_cresc_p;
191 cresc_p_->set_bounds(LEFT,get_staff_info().musical_pcol_l ());
195 index_set_cell (cresc_p_->get_elt_property ("dynamic-drul"),
198 index_set_cell (to_end_cresc_p_->get_elt_property ("dynamic-drul"),
205 Dynamic_engraver::do_pre_move_processing()
212 ADD_THIS_TRANSLATOR(Dynamic_engraver);
215 Dynamic_engraver::do_removal_processing ()
219 typeset_element (cresc_p_ );
220 cresc_req_l_->warning (_ ("unended crescendo"));
228 Dynamic_engraver::typeset_all ()
232 to_end_cresc_p_->set_bounds(RIGHT,get_staff_info().musical_pcol_l ());
233 typeset_element (to_end_cresc_p_);
241 typeset_element (text_p_);
247 Dynamic_engraver::typeset_element (Score_element * e)
249 side_position(e).add_staff_support ();
250 Engraver::typeset_element (e);
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 Side_position_interface (text_p_).add_support (i.elem_l_);
264 Side_position_interface (to_end_cresc_p_).add_support (i.elem_l_);
267 Side_position_interface(cresc_p_).add_support (i.elem_l_);