2 score-elem.cc -- implement Score_element
4 source file of the GNU LilyPond music typesetter
6 (c) 1997--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
12 #include "group-interface.hh"
14 #include "paper-score.hh"
15 #include "paper-def.hh"
17 #include "molecule.hh"
18 #include "score-element.hh"
21 #include "line-of-score.hh"
23 #include "paper-column.hh"
24 #include "molecule.hh"
26 #include "paper-outputter.hh"
27 #include "dimension-cache.hh"
28 #include "side-position-interface.hh"
31 Score_element::Score_element()
34 dim_cache_[X_AXIS] = new Dimension_cache;
35 dim_cache_[Y_AXIS] = new Dimension_cache;
36 dim_cache_[X_AXIS]->elt_l_ = dim_cache_[Y_AXIS]->elt_l_ = this;
40 dim_cache_[X_AXIS]->set_callback (molecule_extent);
41 dim_cache_[Y_AXIS]->set_callback (molecule_extent);
48 element_property_alist_ = SCM_EOL;
53 set_elt_property ("dependencies", SCM_EOL);
56 SCM ly_deep_copy (SCM);
63 return gh_cons (ly_deep_copy (gh_car (l)), ly_deep_copy (gh_cdr (l)));
70 Score_element::Score_element (Score_element const&s)
72 dim_cache_[X_AXIS] = new Dimension_cache (*s.dim_cache_[X_AXIS]);
73 dim_cache_[Y_AXIS] = new Dimension_cache (*s.dim_cache_[Y_AXIS]);
74 dim_cache_[X_AXIS]->elt_l_ = dim_cache_[Y_AXIS]->elt_l_ = this;
78 original_l_ =(Score_element*) &s;
81 should protect because smobify_self () might trigger GC.
83 SCM onstack = ly_deep_copy (s.element_property_alist_);
84 element_property_alist_ = onstack;
87 status_i_ = s.status_i_;
88 lookup_l_ = s.lookup_l_;
89 pscore_l_ = s.pscore_l_;
94 Score_element::~Score_element()
97 assert (status_i_ >=0);
100 delete dim_cache_[X_AXIS];
101 delete dim_cache_[Y_AXIS];
106 Score_element::get_real (String s) const
108 return gh_scm2double (get_elt_property (s));
112 Score_element::set_real (String s, Real r)
114 set_elt_property (s, gh_double2scm (r));
117 // should also have one that takes SCM arg.
119 Score_element::get_elt_property (String nm) const
121 SCM sym = ly_symbol2scm (nm.ch_C());
122 SCM s = scm_assq(sym, element_property_alist_);
129 SCM sym2 = ly_symbol2scm ((name () + ("::" + nm)).ch_C());
132 // should probably check for Type::sym as well.
133 Paper_def * p= pscore_l_->paper_l_;
134 if (p->default_properties_.try_retrieve (sym2, &val))
136 else if (p->default_properties_.try_retrieve (sym, &val))
140 return SCM_UNDEFINED;
144 Score_element::remove_elt_property (String key)
146 SCM s = get_elt_property (key);
147 SCM sym = ly_symbol2scm (key.ch_C());
148 element_property_alist_ = scm_assq_remove_x (element_property_alist_, sym);
156 Score_element::set_elt_property (String k, SCM v)
158 SCM s = ly_symbol2scm (k.ch_C( ));
159 element_property_alist_ = scm_assoc_set_x (element_property_alist_, s, v);
163 Score_element::molecule_extent(Dimension_cache const *c)
165 Score_element *s = dynamic_cast<Score_element*>(c->element_l());
166 Molecule*m = s->do_brew_molecule_p();
168 Interval iv = m->extent()[c->axis ()];
176 Score_element::print() const
179 DEBUG_OUT << classname(this) << "{\n";
181 if (flower_dstream && !flower_dstream->silent_b ("Score_element"))
182 ly_display_scm (element_property_alist_);
185 DEBUG_OUT << "Copy ";
193 Score_element::paper_l () const
195 return pscore_l_ ? pscore_l_->paper_l_ : 0;
199 Score_element::lookup_l () const
203 Score_element * urg = (Score_element*)this;
204 SCM sz = urg->remove_elt_property ("fontsize");
205 int i = (gh_number_p (sz))
209 urg->lookup_l_ = (Lookup*)pscore_l_->paper_l_->lookup_l (i);
215 Score_element::add_processing()
217 assert (status_i_ >=0);
226 if (get_elt_property ("self-alignment-X") != SCM_UNDEFINED
227 && !dim_cache_[X_AXIS]->off_callback_l_)
229 dim_cache_[X_AXIS]->off_callbacks_.push (Side_position_interface::aligned_on_self);
232 if (get_elt_property ("self-alignment-Y") != SCM_UNDEFINED
233 && !dim_cache_[X_AXIS]->off_callback_l_)
236 dim_cache_[Y_AXIS]->set_offset_callback (Side_position_interface::aligned_on_self);
244 Score_element::calculate_dependencies (int final, int busy,
245 Score_element_method_pointer funcptr)
247 assert (status_i_ >=0);
249 if (status_i_ >= final)
252 assert (status_i_!= busy);
255 Link_array<Score_element> dependency_arr =
256 Group_interface__extract_elements (this, (Score_element*)0, "dependencies");
258 for (int i=0; i < dependency_arr.size(); i++)
259 dependency_arr[i]->calculate_dependencies (final, busy, funcptr);
261 Link_array<Score_element> extra (get_extra_dependencies());
262 for (int i=0; i < extra.size(); i++)
263 extra[i]->calculate_dependencies (final, busy, funcptr);
270 Score_element::output_processing ()
272 if (to_boolean (get_elt_property ("transparent")))
275 // we're being silly here.
279 output_p_ = do_brew_molecule_p ();
280 Offset o (relative_coordinate (0, X_AXIS), relative_coordinate (0, Y_AXIS));
282 SCM s = get_elt_property ("extra-offset");
285 Real il = paper_l ()->get_var ("interline");
286 o[X_AXIS] += il * gh_scm2double (gh_car (s));
287 o[Y_AXIS] += il * gh_scm2double (gh_cdr (s));
290 pscore_l_->outputter_l_->output_molecule (output_p_,
304 Score_element::do_break_processing()
309 Score_element::do_post_processing()
314 Score_element::do_breakable_col_processing()
316 handle_prebroken_dependencies();
320 Score_element::do_pre_processing()
325 Score_element::do_space_processing ()
330 Score_element::do_add_processing()
337 Score_element::do_brew_molecule_p() const
339 SCM glyph = get_elt_property ("glyph");
340 if (gh_string_p (glyph))
342 Molecule*output = new Molecule (lookup_l ()->afm_find (String (ly_scm2string (glyph))));
350 Molecule a (lookup_l ()->fill (Box (emp,emp)));
351 return new Molecule (a);
357 Score_element::line_l() const
363 Score_element::add_dependency (Score_element*e)
367 Group_interface gi (this, "dependencies");
371 programming_error ("Null dependency added");
378 Do break substitution in S, using CRITERION. Return new value.
379 CRITERION is either a SMOB pointer to the desired line, or a number
380 representing the break direction. */
382 Score_element::handle_broken_smobs (SCM s, SCM criterion)
387 Score_element *sc = unsmob_element ( s);
390 if (criterion == SCM_UNDEFINED)
391 return SCM_UNDEFINED;
392 else if (gh_number_p (criterion))
394 Item * i = dynamic_cast<Item*> (sc);
395 Direction d = to_dir (criterion);
396 if (i && i->break_status_dir () != d)
398 Item *br = i->find_broken_piece (d);
399 return (br) ? br->self_scm_ : SCM_UNDEFINED;
404 Score_element * ln = unsmob_element ( criterion);
405 Line_of_score * line = dynamic_cast<Line_of_score*> (ln);
406 Score_element * br =0;
407 Line_of_score * dep_line = sc->line_l ();
408 if (dep_line != line)
410 br = sc->find_broken_piece (line);
411 return (br) ? br->self_scm_ : SCM_UNDEFINED;
414 return SCM_UNDEFINED;
417 else if (gh_pair_p (s))
420 UGH! breaks on circular lists.
422 SCM car = handle_broken_smobs (gh_car (s), criterion);
423 SCM cdr = gh_cdr (s);
425 if (car == SCM_UNDEFINED
426 && (gh_pair_p (cdr) || cdr == SCM_EOL))
429 This is tail-recursion, ie.
431 return handle_broken_smobs (cdr, criterion);
433 We don't want to rely on the compiler to do this. */
438 gh_set_car_x (s, car);
439 gh_set_cdr_x (s, handle_broken_smobs (cdr, criterion));
446 Score_element::handle_broken_dependencies()
448 Line_of_score *line = line_l();
449 element_property_alist_ = handle_broken_smobs (element_property_alist_,
450 line ? line->self_scm_ : SCM_UNDEFINED);
461 Score_element::handle_prebroken_dependencies()
463 if (Item*i =dynamic_cast<Item*> (this))
465 element_property_alist_
466 = handle_broken_smobs (element_property_alist_,
467 gh_int2scm (i->break_status_dir ()));
475 Link_array<Score_element>
476 Score_element::get_extra_dependencies() const
478 Link_array<Score_element> empty;
483 Score_element::linked_b() const
489 Score_element::do_print () const
494 Score_element::find_broken_piece (Line_of_score*) const
502 Score_element::translate_axis (Real y, Axis a)
504 dim_cache_[a]->translate (y);
508 Score_element::relative_coordinate (Score_element const*e, Axis a) const
510 return dim_cache_[a]->relative_coordinate (e ? e->dim_cache_[a] : 0);
514 Score_element::common_refpoint (Score_element const* s, Axis a) const
516 Dimension_cache *dim = dim_cache_[a]->common_refpoint (s->dim_cache_[a]);
517 return dim ? dim->element_l () : 0;
521 Score_element::set_empty (Axis a)
523 dim_cache_[a]->callback_l_ =0;
527 Score_element::empty_b (Axis a)const
529 return !dim_cache_[a]->callback_l_;
533 Score_element::extent (Axis a) const
535 Dimension_cache const * d = dim_cache_[a];
537 return d->get_dim ();
542 Score_element::parent_l (Axis a) const
544 Dimension_cache*d= dim_cache_[a]->parent_l_;
545 return d ? d->elt_l_ : 0;
549 Score_element::common_refpoint (Link_array<Score_element> gs, Axis a) const
551 Dimension_cache * common = dim_cache_[a];
552 for (int i=0; i < gs.size (); i++)
554 common = common->common_refpoint (gs[i]->dim_cache_[a]);
557 return common->element_l ();
561 Score_element::name () const
563 return classname (this);
568 Score_element::set_parent (Score_element *g, Axis a)
570 dim_cache_[a]->parent_l_ = g ? g->dim_cache_[a]: 0;
574 Score_element::fixup_refpoint ()
576 for (int a = X_AXIS; a < NO_AXES; a ++)
579 Score_element * par = parent_l (ax);
584 if (par->line_l () != line_l ())
586 Score_element * newpar = par->find_broken_piece (line_l ());
587 set_parent (newpar, ax);
590 if (Item * i = dynamic_cast<Item*> (this))
592 Item *pari = dynamic_cast<Item*> (par);
596 Direction my_dir = i->break_status_dir () ;
597 if (my_dir!= pari->break_status_dir())
599 Item *newpar = pari->find_broken_piece (my_dir);
600 set_parent (newpar, ax);
609 /****************************************************
611 ****************************************************/
614 #include "ly-smobs.icc"
616 IMPLEMENT_SMOBS(Score_element);
617 IMPLEMENT_UNSMOB(Score_element, element);
619 Score_element::mark_smob (SCM ses)
621 Score_element * s = SMOB_TO_TYPE (Score_element, ses);
622 if (s->self_scm_ != ses)
624 programming_error ("SMOB marking gone awry");
627 return s->element_property_alist_;
631 Score_element::print_smob (SCM s, SCM port, scm_print_state *)
633 Score_element *sc = (Score_element *) gh_cdr (s);
635 scm_puts ("#<Score_element ", port);
636 scm_puts ((char *)sc->name (), port);
638 // scm_puts (" properties = ", port);
639 // scm_display (sc->element_property_alist_, port);
640 scm_puts (" >", port);
645 Score_element::do_smobify_self ()
650 Score_element::equal_p (SCM a, SCM b)
652 return gh_cdr(a) == gh_cdr(b) ? SCM_BOOL_T : SCM_BOOL_F;