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_protect_object (gh_cons (gh_cons (void_scm_sym, SCM_BOOL_T) , SCM_EOL));
52 Score_element::Score_element (Score_element const&s)
53 : Graphical_element (s)
57 original_l_ =(Score_element*) &s;
58 element_property_alist_ = scm_protect_object (scm_list_copy (s.element_property_alist_));
59 dependency_arr_ = s.dependency_arr_;
61 status_i_ = s.status_i_;
62 lookup_l_ = s.lookup_l_;
63 pscore_l_ = s.pscore_l_;
66 Score_element::~Score_element()
69 assert (status_i_ >=0);
74 Score_element::dependency (int i) const
76 return dependency_arr_ [i];
80 Score_element::dependency_size () const
82 return dependency_arr_.size ();
86 Score_element::get_elt_property (SCM sym) const
88 SCM s = scm_assq(sym, element_property_alist_);
90 // is this a good idea?
91 if (s == SCM_BOOL_F && pscore_l_ && pscore_l_->paper_l_)
92 s = pscore_l_->paper_l_->get_scm_var (sym);
98 Score_element::remove_elt_property (SCM key)
100 SCM s = get_elt_property (key);
101 SCM_CDR(element_property_alist_) = scm_assq_remove_x (SCM_CDR (element_property_alist_), key);
106 Score_element::set_elt_property (SCM s, SCM v)
108 SCM_CDR(element_property_alist_) =
109 scm_assoc_set_x (SCM_CDR (element_property_alist_), s, v);
113 Score_element::do_width() const
117 Molecule*m = output_p_ ? output_p_ : do_brew_molecule_p();
118 r = m->extent().x ();
127 Score_element::do_height() const
130 Molecule*m = output_p_ ? output_p_ : do_brew_molecule_p();
131 r = m->extent().y ();
139 Score_element::print() const
142 DEBUG_OUT << classname(this) << "{\n";
143 if (flower_dstream && !flower_dstream->silent_b ("Score_element"))
144 ly_display_scm (element_property_alist_);
145 DEBUG_OUT << "dependencies: " << dependency_size();
147 DEBUG_OUT << "Copy ";
148 Graphical_element::do_print ();
156 Score_element::paper_l () const
158 return pscore_l_->paper_l_;
162 Score_element::lookup_l () const
166 Score_element * urg = (Score_element*)this;
167 SCM sz = urg->remove_elt_property (fontsize_scm_sym);
168 int i = (sz != SCM_BOOL_F)
169 ? gh_scm2int (SCM_CDR (sz))
172 urg->lookup_l_ = (Lookup*)pscore_l_->paper_l_->lookup_l (i);
178 Score_element::add_processing()
180 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 Offset o (relative_coordinate (0, X_AXIS), relative_coordinate (0, Y_AXIS));
225 pscore_l_->outputter_l_->output_molecule (output_p_,
236 Score_element::do_break_processing()
238 handle_broken_dependencies();
242 Score_element::do_post_processing()
247 Score_element::do_breakable_col_processing()
249 handle_prebroken_dependencies();
253 Score_element::do_pre_processing()
258 Score_element::do_space_processing ()
263 Score_element::do_add_processing()
268 Score_element::do_substitute_element_pointer (Score_element*,Score_element*)
274 Score_element::do_brew_molecule_p() const
276 Molecule a (lookup_l ()->fill (Box (Interval (0,0), Interval (0,0))));
277 return new Molecule (a);
282 Score_element::line_l() const
288 Score_element::add_dependency (Score_element*e)
292 dependency_arr_.push (e);
296 programming_error ("Null dependency added");
300 Score_element::substitute_dependency (Score_element* old, Score_element* new_l)
302 do_substitute_element_pointer (old,new_l);
303 old->do_substitute_element_pointer (this, 0);
307 Score_element::handle_broken_dependencies()
309 Line_of_score *line = line_l();
313 do_substitute_arrays ();
315 Link_array<Score_element> new_deps;
317 for (int i=0; i < dependency_size(); i++)
319 Score_element * elt = dependency (i);
320 if (elt->line_l() != line)
322 Score_element * broken = elt->find_broken_piece (line);
323 substitute_dependency (elt, broken);
329 dependency_arr_ = new_deps;
337 unlike with spanners, the number of items can increase
343 span: item1 item2 item3
345 How to let span (a derived class) know that this happened?
351 Score_element::handle_prebroken_dependencies()
353 /* dynamic_cast<Item*> (this) &&
354 if (!break_status_dir ())
357 Link_array<Score_element> old_arr, new_arr;
359 for (int i=0; i < dependency_size(); i++)
361 Score_element * elt = dependency (i);
362 Item *it_l = dynamic_cast <Item *> (elt);
363 if (it_l && it_l->broken_original_b ())
364 if (Item *me = dynamic_cast<Item*> (this) )
366 Score_element *new_l = it_l->find_broken_piece (me->break_status_dir ());
369 new_arr.push (new_l);
378 new_arr.push (it_l->find_broken_piece (d));
379 } while (flip(&d)!= LEFT);
383 for (int i=0; i < old_arr.size(); i++)
385 substitute_dependency (old_arr[i], new_arr[i]);
389 Score_element::handle_prebroken_dependents()
394 Score_element::handle_broken_dependents()
400 Link_array<Score_element>
401 Score_element::get_extra_dependencies() const
403 Link_array<Score_element> empty;
408 Score_element::linked_b() const
414 Score_element::do_print () const
419 Score_element::do_substitute_arrays ()
425 Score_element::find_broken_piece (Line_of_score*) const
430 static scm_smobfuns score_elt_funs = {
431 Score_element::mark_smob, Score_element::free_smob,
432 Score_element::print_smob, 0,
437 Score_element::smobify_self ()
439 if (self_scm_ != SCM_EOL)
444 SCM_SETCAR(s,smob_tag);
447 scm_unprotect_object (element_property_alist_); // ugh
452 Score_element::mark_smob (SCM ses)
454 Score_element * s = (Score_element*) SCM_CDR(ses);
455 scm_gc_mark (s->self_scm_);
456 return s->element_property_alist_;
460 Score_element::free_smob (SCM ses)
462 Score_element * s = (Score_element*) SCM_CDR(ses);
468 Score_element::print_smob (SCM s, SCM p, scm_print_state *)
473 long Score_element::smob_tag;
476 Score_element::init_smobs ()
478 smob_tag = scm_newsmob (&score_elt_funs);
484 Score_element::init_smobs ();