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 ();
138 Score_element::print() const
141 DOUT << classname(this) << "{\n";
142 DOUT << "dependencies: " << dependency_size();
145 Graphical_element::do_print ();
154 Score_element::paper_l () const
156 return pscore_l_->paper_l_;
161 Score_element::lookup_l () const
165 Score_element * me = (Score_element*)this;
166 SCM sz = me->remove_elt_property (fontsize_scm_sym);
167 int i = (sz != SCM_BOOL_F)
168 ? gh_scm2int (SCM_CDR (sz))
171 me->lookup_l_ = pscore_l_->paper_l_->lookup_l (i);
177 Score_element::add_processing()
179 assert (status_i_ >=0);
188 Score_element::calculate_dependencies (int final, int busy,
189 Score_element_method_pointer funcptr)
191 assert (status_i_ >=0);
193 if (status_i_ >= final)
196 assert (status_i_!= busy);
199 for (int i=0; i < dependency_arr_.size(); i++)
200 dependency_arr_[i]->calculate_dependencies (final, busy, funcptr);
202 Link_array<Score_element> extra (get_extra_dependencies());
203 for (int i=0; i < extra.size(); i++)
204 extra[i]->calculate_dependencies (final, busy, funcptr);
206 invalidate_cache (X_AXIS);
207 invalidate_cache (Y_AXIS);
213 Score_element::output_processing ()
215 if (get_elt_property (transparent_scm_sym) != SCM_BOOL_F)
218 // we're being silly here.
222 output_p_ = do_brew_molecule_p ();
223 pscore_l_->outputter_l_->output_molecule (output_p_,
227 pscore_l_->schedule_for_delete (this);
239 Score_element::do_break_processing()
241 handle_broken_dependencies();
245 Score_element::do_post_processing()
250 Score_element::do_breakable_col_processing()
252 handle_prebroken_dependencies();
256 Score_element::do_pre_processing()
261 Score_element::do_space_processing ()
266 Score_element::do_add_processing()
271 Score_element::do_substitute_element_pointer (Score_element*,Score_element*)
277 Score_element::do_brew_molecule_p() const
279 Molecule a (lookup_l ()->fill (Box (Interval (0,0), Interval (0,0))));
280 return new Molecule (a);
285 Score_element::line_l() const
297 Score_element::remove_dependency (Score_element*e)
300 while ((i = dependency_arr_.find_i (e)) >=0 )
301 dependency_arr_.unordered_del (i);
303 substitute_dependency (e, 0);
307 Score_element::add_dependency (Score_element*e)
311 dependency_arr_.push (e);
315 warning("Null dependency added");
319 Score_element::substitute_dependency (Score_element* old, Score_element* new_l)
321 do_substitute_element_pointer (old,new_l);
322 old->do_substitute_element_pointer (this, 0);
326 Score_element::handle_broken_dependencies()
328 Line_of_score *line = line_l();
332 Link_array<Score_element> remove_us_arr;
333 for (int i=0; i < dependency_size(); i++)
335 Score_element * elt = dependency (i);
336 if (elt->line_l() != line)
338 if (Spanner *sp = dynamic_cast<Spanner *> (elt))
340 Spanner * broken = sp->find_broken_piece (line);
341 substitute_dependency (sp, broken);
344 add_dependency (broken);
346 else if (Item *original = dynamic_cast <Item *> (elt))
348 Item * my_item = original->find_prebroken_piece (line);
350 substitute_dependency (elt, my_item);
352 add_dependency (my_item);
354 remove_us_arr.push (elt);
358 remove_us_arr.default_sort();
359 remove_us_arr.uniq();
360 for (int i=0; i <remove_us_arr.size(); i++)
361 remove_dependency (remove_us_arr[i]);
367 unlike with spanners, the number of items can increase
373 span: item1 item2 item3
375 How to let span (a derived class) know that this happened?
378 Score_element::handle_prebroken_dependencies()
380 /* dynamic_cast<Item*> (this) &&
381 if (!break_status_dir ())
384 Link_array<Score_element> old_arr, new_arr;
386 for (int i=0; i < dependency_size(); i++)
388 Score_element * elt = dependency (i);
389 Item *it_l = dynamic_cast <Item *> (elt);
390 if (it_l && it_l->broken_original_b ())
391 if (Item *me = dynamic_cast<Item*> (this) )
393 Score_element *new_l = it_l->find_prebroken_piece (me->break_status_dir ());
396 new_arr.push (new_l);
405 new_arr.push (it_l->find_prebroken_piece (d));
406 } while (flip(&d)!= LEFT);
410 for (int i=0; i < old_arr.size(); i++)
412 substitute_dependency (old_arr[i], new_arr[i]);
416 Score_element::handle_prebroken_dependents()
422 Link_array<Score_element>
423 Score_element::get_extra_dependencies() const
425 Link_array<Score_element> empty;
430 Score_element::linked_b() const
436 Score_element::do_print () const