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>
10 #include "group-interface.hh"
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"
26 #include "side-position-interface.hh"
29 Score_element::Score_element()
32 dim_cache_[X_AXIS] = new Dimension_cache;
33 dim_cache_[Y_AXIS] = new Dimension_cache;
34 dim_cache_[X_AXIS]->elt_l_ = dim_cache_[Y_AXIS]->elt_l_ = this;
38 dim_cache_[X_AXIS]->set_callback (molecule_extent);
39 dim_cache_[Y_AXIS]->set_callback (molecule_extent);
46 element_property_alist_ = SCM_EOL;
51 set_elt_property ("dependencies", SCM_EOL);
54 SCM ly_deep_copy (SCM);
61 return gh_cons (ly_deep_copy (gh_car (l)), ly_deep_copy (gh_cdr (l)));
68 Score_element::Score_element (Score_element const&s)
70 dim_cache_[X_AXIS] = new Dimension_cache (*s.dim_cache_[X_AXIS]);
71 dim_cache_[Y_AXIS] = new Dimension_cache (*s.dim_cache_[Y_AXIS]);
72 dim_cache_[X_AXIS]->elt_l_ = dim_cache_[Y_AXIS]->elt_l_ = this;
76 original_l_ =(Score_element*) &s;
79 should protect because smobify_self () might trigger GC.
81 element_property_alist_ = scm_protect_object (ly_deep_copy (s.element_property_alist_));
84 status_i_ = s.status_i_;
85 lookup_l_ = s.lookup_l_;
86 pscore_l_ = s.pscore_l_;
91 Score_element::~Score_element()
94 assert (status_i_ >=0);
97 delete dim_cache_[X_AXIS];
98 delete dim_cache_[Y_AXIS];
103 Score_element::get_real (String s) const
105 return gh_scm2double (get_elt_property (s));
109 Score_element::set_real (String s, Real r)
111 set_elt_property (s, gh_double2scm (r));
114 // should also have one that takes SCM arg.
116 Score_element::get_elt_property (String nm) const
118 SCM sym = ly_symbol2scm (nm.ch_C());
119 SCM s = scm_assq(sym, element_property_alist_);
126 SCM sym2 = ly_symbol2scm ((name () + ("::" + nm)).ch_C());
129 // should probably check for Type::sym as well.
130 Paper_def * p= pscore_l_->paper_l_;
131 if (p->default_properties_.try_retrieve (sym2, &val))
133 else if (p->default_properties_.try_retrieve (sym, &val))
137 return SCM_UNDEFINED;
141 Score_element::remove_elt_property (String key)
143 SCM s = get_elt_property (key);
144 SCM sym = ly_symbol2scm (key.ch_C());
145 element_property_alist_ = scm_assq_remove_x (element_property_alist_, sym);
153 Score_element::set_elt_property (String k, SCM v)
155 SCM s = ly_symbol2scm (k.ch_C( ));
156 element_property_alist_ = scm_assoc_set_x (element_property_alist_, s, v);
160 Score_element::molecule_extent(Dimension_cache const *c)
162 Score_element *s = dynamic_cast<Score_element*>(c->element_l());
163 Molecule*m = s->do_brew_molecule_p();
164 return m->extent()[c->axis ()];
169 Score_element::print() const
172 DEBUG_OUT << classname(this) << "{\n";
174 if (flower_dstream && !flower_dstream->silent_b ("Score_element"))
175 ly_display_scm (element_property_alist_);
178 DEBUG_OUT << "Copy ";
186 Score_element::paper_l () const
188 return pscore_l_ ? pscore_l_->paper_l_ : 0;
192 Score_element::lookup_l () const
196 Score_element * urg = (Score_element*)this;
197 SCM sz = urg->remove_elt_property ("fontsize");
198 int i = (gh_number_p (sz))
202 urg->lookup_l_ = (Lookup*)pscore_l_->paper_l_->lookup_l (i);
208 Score_element::add_processing()
210 assert (status_i_ >=0);
219 if (get_elt_property ("self-alignment-X") != SCM_UNDEFINED
220 && !dim_cache_[X_AXIS]->off_callback_l_)
222 dim_cache_[X_AXIS]->off_callbacks_.push (Side_position_interface::self_alignment);
225 if (get_elt_property ("self-alignment-Y") != SCM_UNDEFINED
226 && !dim_cache_[X_AXIS]->off_callback_l_)
229 dim_cache_[Y_AXIS]->set_offset_callback (Side_position_interface::self_alignment);
237 Score_element::calculate_dependencies (int final, int busy,
238 Score_element_method_pointer funcptr)
240 assert (status_i_ >=0);
242 if (status_i_ >= final)
245 assert (status_i_!= busy);
248 Link_array<Score_element> dependency_arr =
249 Group_interface__extract_elements (this, (Score_element*)0, "dependencies");
251 for (int i=0; i < dependency_arr.size(); i++)
252 dependency_arr[i]->calculate_dependencies (final, busy, funcptr);
254 Link_array<Score_element> extra (get_extra_dependencies());
255 for (int i=0; i < extra.size(); i++)
256 extra[i]->calculate_dependencies (final, busy, funcptr);
263 Score_element::output_processing ()
265 if (to_boolean (get_elt_property ("transparent")))
268 // we're being silly here.
272 output_p_ = do_brew_molecule_p ();
273 Offset o (relative_coordinate (0, X_AXIS), relative_coordinate (0, Y_AXIS));
275 SCM s = get_elt_property ("extra-offset");
278 Real il = paper_l ()->get_var ("interline");
279 o[X_AXIS] += il * gh_scm2double (gh_car (s));
280 o[Y_AXIS] += il * gh_scm2double (gh_cdr (s));
283 pscore_l_->outputter_l_->output_molecule (output_p_,
297 Score_element::do_break_processing()
302 Score_element::do_post_processing()
307 Score_element::do_breakable_col_processing()
309 handle_prebroken_dependencies();
313 Score_element::do_pre_processing()
318 Score_element::do_space_processing ()
323 Score_element::do_add_processing()
330 Score_element::do_brew_molecule_p() const
332 SCM glyph = get_elt_property ("glyph");
333 if (gh_string_p (glyph))
335 Molecule*output = new Molecule (lookup_l ()->afm_find (String (ly_scm2string (glyph))));
343 Molecule a (lookup_l ()->fill (Box (emp,emp)));
344 return new Molecule (a);
350 Score_element::line_l() const
356 Score_element::add_dependency (Score_element*e)
360 Group_interface gi (this, "dependencies");
364 programming_error ("Null dependency added");
371 Do break substitution in S, using CRITERION. Return new value.
372 CRITERION is either a SMOB pointer to the desired line, or a number
373 representing the break direction. */
375 Score_element::handle_broken_smobs (SCM s, SCM criterion)
380 Score_element *sc = unsmob_element ( s);
383 if (criterion == SCM_UNDEFINED)
384 return SCM_UNDEFINED;
385 else if (gh_number_p (criterion))
387 Item * i = dynamic_cast<Item*> (sc);
388 Direction d = to_dir (criterion);
389 if (i && i->break_status_dir () != d)
391 Item *br = i->find_broken_piece (d);
392 return (br) ? br->self_scm_ : SCM_UNDEFINED;
397 Score_element * ln = unsmob_element ( criterion);
398 Line_of_score * line = dynamic_cast<Line_of_score*> (ln);
399 Score_element * br =0;
400 Line_of_score * dep_line = sc->line_l ();
401 if (dep_line != line)
403 br = sc->find_broken_piece (line);
404 return (br) ? br->self_scm_ : SCM_UNDEFINED;
407 return SCM_UNDEFINED;
410 else if (gh_pair_p (s))
413 UGH! breaks on circular lists.
415 SCM car = handle_broken_smobs (gh_car (s), criterion);
416 SCM cdr = gh_cdr (s);
418 if (car == SCM_UNDEFINED
419 && (gh_pair_p (cdr) || cdr == SCM_EOL))
422 This is tail-recursion, ie.
424 return handle_broken_smobs (cdr, criterion);
426 We don't want to rely on the compiler to do this. */
431 gh_set_car_x (s, car);
432 gh_set_cdr_x (s, handle_broken_smobs (cdr, criterion));
439 Score_element::handle_broken_dependencies()
441 Line_of_score *line = line_l();
442 element_property_alist_ = handle_broken_smobs (element_property_alist_,
443 line ? line->self_scm_ : SCM_UNDEFINED);
454 Score_element::handle_prebroken_dependencies()
456 if (Item*i =dynamic_cast<Item*> (this))
458 element_property_alist_
459 = handle_broken_smobs (element_property_alist_,
460 gh_int2scm (i->break_status_dir ()));
468 Link_array<Score_element>
469 Score_element::get_extra_dependencies() const
471 Link_array<Score_element> empty;
476 Score_element::linked_b() const
482 Score_element::do_print () const
487 Score_element::find_broken_piece (Line_of_score*) const
493 Score_element::mark_smob (SCM ses)
495 void * mp = (void*) gh_cdr(ses);
496 Score_element * s = (Score_element*) mp;
498 if (s->self_scm_ != ses)
500 programming_error ("SMOB marking gone awry");
503 return s->element_property_alist_;
508 Score_element::print_smob (SCM s, SCM port, scm_print_state *)
510 Score_element *sc = (Score_element *) gh_cdr (s);
512 scm_puts ("#<Score_element ", port);
513 scm_puts ((char *)sc->name (), port);
515 // scm_puts (" properties = ", port);
516 // scm_display (sc->element_property_alist_, port);
517 scm_puts (" >", port);
522 Score_element::do_smobify_self ()
524 scm_unprotect_object (element_property_alist_); // ugh
526 #include "ly-smobs.icc"
527 IMPLEMENT_SMOBS(Score_element);
530 Score_element::equal_p (SCM a, SCM b)
532 return gh_cdr(a) == gh_cdr(b) ? SCM_BOOL_T : SCM_BOOL_F;
536 Score_element::translate_axis (Real y, Axis a)
538 dim_cache_[a]->translate (y);
542 Score_element::relative_coordinate (Score_element const*e, Axis a) const
544 return dim_cache_[a]->relative_coordinate (e ? e->dim_cache_[a] : 0);
548 Score_element::common_refpoint (Score_element const* s, Axis a) const
550 Dimension_cache *dim = dim_cache_[a]->common_refpoint (s->dim_cache_[a]);
551 return dim ? dim->element_l () : 0;
555 Score_element::set_empty (Axis a)
557 dim_cache_[a]->callback_l_ =0;
561 Score_element::empty_b (Axis a)const
563 return !dim_cache_[a]->callback_l_;
567 Score_element::extent (Axis a) const
569 Dimension_cache const * d = dim_cache_[a];
571 return d->get_dim ();
575 unsmob_element (SCM s)
577 if (SMOB_IS_TYPE_B (Score_element, s))
578 return SMOB_TO_TYPE(Score_element,s);
585 Score_element::parent_l (Axis a) const
587 Dimension_cache*d= dim_cache_[a]->parent_l_;
588 return d ? d->elt_l_ : 0;
592 Score_element::common_refpoint (Link_array<Score_element> gs, Axis a) const
594 Dimension_cache * common = dim_cache_[a];
595 for (int i=0; i < gs.size (); i++)
597 common = common->common_refpoint (gs[i]->dim_cache_[a]);
600 return common->element_l ();
604 Score_element::name () const
606 return classname (this);
611 Score_element::set_parent (Score_element *g, Axis a)
613 dim_cache_[a]->parent_l_ = g ? g->dim_cache_[a]: 0;
617 Score_element::fixup_refpoint ()
619 for (int a = X_AXIS; a < NO_AXES; a ++)
622 Score_element * par = parent_l (ax);
627 if (par->line_l () != line_l ())
629 Score_element * newpar = par->find_broken_piece (line_l ());
630 set_parent (newpar, ax);
633 if (Item * i = dynamic_cast<Item*> (this))
635 Item *pari = dynamic_cast<Item*> (par);
639 Direction my_dir = i->break_status_dir () ;
640 if (my_dir!= pari->break_status_dir())
642 Item *newpar = pari->find_broken_piece (my_dir);
643 set_parent (newpar, ax);