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>
12 #include "paper-score.hh"
13 #include "paper-def.hh"
15 #include "molecule.hh"
16 #include "score-element.hh"
19 #include "line-of-score.hh"
21 #include "paper-column.hh"
22 #include "molecule.hh"
24 #include "paper-outputter.hh"
25 #include "dimension-cache.hh"
29 Score_element::dim_cache_callback (Dimension_cache*c)
31 Score_element * e =dynamic_cast<Score_element*>( c->element_l());
32 if(e->dim_cache_[X_AXIS] == c)
33 return e->do_width ();
35 return e->do_height ();
38 Score_element::Score_element()
41 dim_cache_[X_AXIS]->set_callback (dim_cache_callback);
42 dim_cache_[Y_AXIS]->set_callback (dim_cache_callback);
49 element_property_alist_ = SCM_EOL;
54 Score_element::Score_element (Score_element const&s)
55 : Graphical_element (s)
60 original_l_ =(Score_element*) &s;
61 element_property_alist_ = scm_protect_object (scm_list_copy (s.element_property_alist_));
62 dependency_arr_ = s.dependency_arr_;
64 status_i_ = s.status_i_;
65 lookup_l_ = s.lookup_l_;
66 pscore_l_ = s.pscore_l_;
71 Score_element::~Score_element()
74 assert (status_i_ >=0);
79 Score_element::dependency (int i) const
81 return dependency_arr_ [i];
85 Score_element::dependency_size () const
87 return dependency_arr_.size ();
90 // should also have one that takes SCM arg.
92 Score_element::get_elt_property (String nm) const
94 SCM sym = ly_symbol (nm);
95 SCM s = scm_assq(sym, element_property_alist_);
102 SCM sym2 = ly_symbol (name () + ("::" + nm));
105 // should probably check for Type::sym as well.
106 Paper_def * p= pscore_l_->paper_l_;
107 if (p->default_properties_.try_retrieve (sym2, &val))
109 else if (p->default_properties_.try_retrieve (sym, &val))
113 return SCM_UNDEFINED;
117 Score_element::remove_elt_property (String key)
119 SCM s = get_elt_property (key);
120 SCM sym = ly_symbol (key);
121 element_property_alist_ = scm_assq_remove_x (element_property_alist_, sym);
129 Score_element::set_elt_property (String k, SCM v)
131 SCM s = ly_symbol (k);
132 element_property_alist_ = scm_assoc_set_x (element_property_alist_, s, v);
136 Score_element::do_width() const
140 Molecule*m = output_p_ ? output_p_ : do_brew_molecule_p();
141 r = m->extent().x ();
150 Score_element::do_height() const
153 Molecule*m = output_p_ ? output_p_ : do_brew_molecule_p();
154 r = m->extent().y ();
162 Score_element::print() const
165 DEBUG_OUT << classname(this) << "{\n";
166 if (flower_dstream && !flower_dstream->silent_b ("Score_element"))
167 ly_display_scm (element_property_alist_);
168 DEBUG_OUT << "dependencies: " << dependency_size();
170 DEBUG_OUT << "Copy ";
171 Graphical_element::do_print ();
179 Score_element::paper_l () const
181 return pscore_l_->paper_l_;
185 Score_element::lookup_l () const
189 Score_element * urg = (Score_element*)this;
190 SCM sz = urg->remove_elt_property ("fontsize");
191 int i = (sz != SCM_UNDEFINED)
195 urg->lookup_l_ = (Lookup*)pscore_l_->paper_l_->lookup_l (i);
201 Score_element::add_processing()
203 assert (status_i_ >=0);
211 Score_element::calculate_dependencies (int final, int busy,
212 Score_element_method_pointer funcptr)
214 assert (status_i_ >=0);
216 if (status_i_ >= final)
219 assert (status_i_!= busy);
222 for (int i=0; i < dependency_arr_.size(); i++)
223 dependency_arr_[i]->calculate_dependencies (final, busy, funcptr);
225 Link_array<Score_element> extra (get_extra_dependencies());
226 for (int i=0; i < extra.size(); i++)
227 extra[i]->calculate_dependencies (final, busy, funcptr);
229 invalidate_cache (X_AXIS);
230 invalidate_cache (Y_AXIS);
236 Score_element::output_processing ()
238 if (get_elt_property ("transparent") != SCM_UNDEFINED)
241 // we're being silly here.
245 output_p_ = do_brew_molecule_p ();
246 Offset o (relative_coordinate (0, X_AXIS), relative_coordinate (0, Y_AXIS));
248 SCM s = get_elt_property ("extra-offset");
251 Real il = paper_l ()->get_var ("interline");
252 o[X_AXIS] += il * gh_scm2double (gh_car (s));
253 o[Y_AXIS] += il * gh_scm2double (gh_cdr (s));
256 pscore_l_->outputter_l_->output_molecule (output_p_,
270 Score_element::do_break_processing()
272 handle_broken_dependencies();
276 Score_element::do_post_processing()
281 Score_element::do_breakable_col_processing()
283 handle_prebroken_dependencies();
287 Score_element::do_pre_processing()
292 Score_element::do_space_processing ()
297 Score_element::do_add_processing()
302 Score_element::do_substitute_element_pointer (Score_element*,Score_element*)
308 Score_element::do_brew_molecule_p() const
310 Molecule a (lookup_l ()->fill (Box (Interval (0,0), Interval (0,0))));
311 return new Molecule (a);
316 Score_element::line_l() const
322 Score_element::add_dependency (Score_element*e)
326 dependency_arr_.push (e);
330 programming_error ("Null dependency added");
334 Score_element::substitute_dependency (Score_element* old, Score_element* new_l)
336 do_substitute_element_pointer (old,new_l);
337 old->do_substitute_element_pointer (this, 0);
341 Score_element::handle_broken_dependencies()
343 Line_of_score *line = line_l();
347 do_substitute_arrays ();
349 Link_array<Score_element> new_deps;
351 for (int i=0; i < dependency_size(); i++)
353 Score_element * elt = dependency (i);
354 if (elt->line_l() != line)
356 Score_element * broken = elt->find_broken_piece (line);
357 substitute_dependency (elt, broken);
363 dependency_arr_ = new_deps;
371 unlike with spanners, the number of items can increase
377 span: item1 item2 item3
379 How to let span (a derived class) know that this happened?
385 Score_element::handle_prebroken_dependencies()
387 /* dynamic_cast<Item*> (this) &&
388 if (!break_status_dir ())
391 Link_array<Score_element> old_arr, new_arr;
393 for (int i=0; i < dependency_size(); i++)
395 Score_element * elt = dependency (i);
396 Item *it_l = dynamic_cast <Item *> (elt);
397 if (it_l && it_l->broken_original_b ())
398 if (Item *me = dynamic_cast<Item*> (this) )
400 Score_element *new_l = it_l->find_broken_piece (me->break_status_dir ());
403 new_arr.push (new_l);
412 new_arr.push (it_l->find_broken_piece (d));
413 } while (flip(&d)!= LEFT);
417 for (int i=0; i < old_arr.size(); i++)
419 substitute_dependency (old_arr[i], new_arr[i]);
423 Score_element::handle_prebroken_dependents()
428 Score_element::handle_broken_dependents()
434 Link_array<Score_element>
435 Score_element::get_extra_dependencies() const
437 Link_array<Score_element> empty;
442 Score_element::linked_b() const
448 Score_element::do_print () const
453 Score_element::do_substitute_arrays ()
459 Score_element::find_broken_piece (Line_of_score*) const
465 Score_element::mark_smob (SCM ses)
467 void * mp = (void*) SCM_CDR(ses);
468 Score_element * s = (Score_element*) mp;
470 assert (s->self_scm_ == ses);
471 return s->element_property_alist_;
476 Score_element::print_smob (SCM s, SCM port, scm_print_state *)
478 Score_element *sc = (Score_element *) SCM_CDR (s);
480 scm_puts ("#<Score_element ", port);
481 scm_puts ((char *)sc->name (), port);
482 scm_puts (" >", port);
487 Score_element::do_smobify_self ()
489 scm_unprotect_object (element_property_alist_); // ugh
491 #include "ly-smobs.icc"
492 IMPLEMENT_SMOBS(Score_element);
495 Score_element::equal_p (SCM a, SCM b)
497 return SCM_CDR(a) == SCM_CDR(b) ? SCM_BOOL_T : SCM_BOOL_F;