2 score-elem.cc -- implement Score_element
4 source file of the GNU LilyPond music typesetter
6 (c) 1997--1999 Han-Wen Nienhuys <hanwen@cs.uu.nl>
13 #include "paper-def.hh"
15 #include "molecule.hh"
16 #include "score-element.hh"
19 #include "line-of-score.hh"
22 #include "molecule.hh"
24 #include "paper-outputter.hh"
27 Score_element::dim_cache_callback (Dimension_cache*c)
29 Score_element * e =dynamic_cast<Score_element*>( c->element_l());
30 if(&e->dim_cache_[X_AXIS] == c)
31 return e->do_width ();
33 return e->do_height ();
36 Score_element::Score_element()
39 dim_cache_[X_AXIS].set_callback (dim_cache_callback);
40 dim_cache_[Y_AXIS].set_callback (dim_cache_callback);
46 element_property_alist_ = SCM_EOL;
49 Score_element::Score_element (Score_element const&s)
50 : Graphical_element (s)
53 original_l_ =(Score_element*) &s;
54 element_property_alist_ = scm_list_copy (s.element_property_alist_);
55 dependency_arr_ = s.dependency_arr_;
57 status_i_ = s.status_i_;
58 lookup_l_ = s.lookup_l_;
59 pscore_l_ = s.pscore_l_;
62 Score_element::~Score_element()
64 element_property_alist_ = SCM_EOL; // try to be nice to GC.
66 assert (status_i_ >=0);
71 Score_element::dependency (int i) const
73 return dependency_arr_ [i];
77 Score_element::dependency_size () const
79 return dependency_arr_.size ();
85 Score_element::get_elt_property (SCM sym) const
87 SCM s = scm_assq(sym, element_property_alist_);
89 // is this a good idea?
90 if (s == SCM_BOOL_F && pscore_l_ && pscore_l_->paper_l_)
91 s = pscore_l_->paper_l_->get_scm_var (sym);
97 Score_element::remove_elt_property (SCM key)
99 SCM s = get_elt_property (key);
100 element_property_alist_ = scm_assq_remove_x (element_property_alist_, key);
105 Score_element::set_elt_property (SCM s, SCM v)
107 element_property_alist_ =
108 scm_assoc_set_x (element_property_alist_, s, v);
112 Score_element::do_width() const
116 Molecule*m = output_p_ ? output_p_ : do_brew_molecule_p();
117 r = m->extent().x ();
126 Score_element::do_height() const
129 Molecule*m = output_p_ ? output_p_ : do_brew_molecule_p();
130 r = m->extent().y ();
142 Score_element::print() const
145 DOUT << classname(this) << "{\n";
146 DOUT << "dependencies: " << dependency_size();
148 Graphical_element::do_print ();
157 Score_element::paper_l () const
159 return pscore_l_->paper_l_;
164 Score_element::lookup_l () const
168 Score_element * me = (Score_element*)this;
169 SCM sz = me->remove_elt_property (fontsize_scm_sym);
170 int i = (sz != SCM_BOOL_F)
171 ? gh_scm2int (SCM_CDR (sz))
174 me->lookup_l_ = pscore_l_->paper_l_->lookup_l (i);
180 Score_element::add_processing()
182 assert (status_i_ >=0);
191 Score_element::calculate_dependencies (int final, int busy,
192 Score_element_method_pointer funcptr)
194 assert (status_i_ >=0);
196 if (status_i_ >= final)
199 assert (status_i_!= busy);
202 for (int i=0; i < dependency_arr_.size(); i++)
203 dependency_arr_[i]->calculate_dependencies (final, busy, funcptr);
205 Link_array<Score_element> extra (get_extra_dependencies());
206 for (int i=0; i < extra.size(); i++)
207 extra[i]->calculate_dependencies (final, busy, funcptr);
209 invalidate_cache (X_AXIS);
210 invalidate_cache (Y_AXIS);
216 Score_element::output_processing ()
218 if (get_elt_property (transparent_scm_sym) != SCM_BOOL_F)
221 // we're being silly here.
225 output_p_ = do_brew_molecule_p ();
226 pscore_l_->outputter_l_->output_molecule (output_p_,
230 pscore_l_->schedule_for_delete (this);
242 Score_element::do_break_processing()
244 handle_broken_dependencies();
248 Score_element::do_post_processing()
253 Score_element::do_breakable_col_processing()
255 handle_prebroken_dependencies();
259 Score_element::do_pre_processing()
264 Score_element::do_space_processing ()
269 Score_element::do_add_processing()
274 Score_element::do_substitute_element_pointer (Score_element*,Score_element*)
280 Score_element::do_brew_molecule_p() const
282 Molecule a (lookup_l ()->fill (Box (Interval (0,0), Interval (0,0))));
283 return new Molecule (a);
288 Score_element::line_l() const
300 Score_element::remove_dependency (Score_element*e)
303 while ((i = dependency_arr_.find_i (e)) >=0 )
304 dependency_arr_.unordered_del (i);
306 substitute_dependency (e, 0);
310 Score_element::add_dependency (Score_element*e)
314 dependency_arr_.push (e);
318 warning("Null dependency added");
322 Score_element::substitute_dependency (Score_element* old, Score_element* new_l)
324 do_substitute_element_pointer (old,new_l);
325 old->do_substitute_element_pointer (this, 0);
329 Score_element::handle_broken_dependencies()
331 Line_of_score *line = line_l();
335 Link_array<Score_element> remove_us_arr;
336 for (int i=0; i < dependency_size(); i++)
338 Score_element * elt = dependency (i);
339 if (elt->line_l() != line)
341 if (Spanner *sp = dynamic_cast<Spanner *> (elt))
343 Spanner * broken = sp->find_broken_piece (line);
344 substitute_dependency (sp, broken);
347 add_dependency (broken);
349 else if (Item *original = dynamic_cast <Item *> (elt))
351 Item * my_item = original->find_prebroken_piece (line);
353 substitute_dependency (elt, my_item);
355 add_dependency (my_item);
357 remove_us_arr.push (elt);
361 remove_us_arr.default_sort();
362 remove_us_arr.uniq();
363 for (int i=0; i <remove_us_arr.size(); i++)
364 remove_dependency (remove_us_arr[i]);
370 unlike with spanners, the number of items can increase
376 span: item1 item2 item3
378 How to let span (a derived class) know that this happened?
381 Score_element::handle_prebroken_dependencies()
383 /* dynamic_cast<Item*> (this) &&
384 if (!break_status_dir ())
387 Link_array<Score_element> old_arr, new_arr;
389 for (int i=0; i < dependency_size(); i++)
391 Score_element * elt = dependency (i);
392 Item *it_l = dynamic_cast <Item *> (elt);
393 if (it_l && it_l->broken_original_b ())
394 if (Item *me = dynamic_cast<Item*> (this) )
396 Score_element *new_l = it_l->find_prebroken_piece (me->break_status_dir ());
399 new_arr.push (new_l);
408 new_arr.push (it_l->find_prebroken_piece (d));
409 } while (flip(&d)!= LEFT);
413 for (int i=0; i < old_arr.size(); i++)
415 substitute_dependency (old_arr[i], new_arr[i]);
419 Score_element::handle_prebroken_dependents()
425 Link_array<Score_element>
426 Score_element::get_extra_dependencies() const
428 Link_array<Score_element> empty;
433 Score_element::linked_b() const
439 Score_element::do_print () const