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()
33 dim_cache_[X_AXIS] = new Dimension_cache;
34 dim_cache_[Y_AXIS] = new Dimension_cache;
35 dim_cache_[X_AXIS]->elt_l_ = dim_cache_[Y_AXIS]->elt_l_ = this;
39 dim_cache_[X_AXIS]->set_callback (molecule_extent);
40 dim_cache_[Y_AXIS]->set_callback (molecule_extent);
47 element_property_alist_ = SCM_EOL;
52 set_elt_property ("dependencies", SCM_EOL);
53 set_elt_property ("interfaces", SCM_EOL);
57 Score_element::Score_element (Score_element const&s)
59 dim_cache_[X_AXIS] = new Dimension_cache (*s.dim_cache_[X_AXIS]);
60 dim_cache_[Y_AXIS] = new Dimension_cache (*s.dim_cache_[Y_AXIS]);
61 dim_cache_[X_AXIS]->elt_l_ = dim_cache_[Y_AXIS]->elt_l_ = this;
65 original_l_ =(Score_element*) &s;
66 element_property_alist_ = SCM_EOL; // onstack;
68 status_i_ = s.status_i_;
69 lookup_l_ = s.lookup_l_;
70 pscore_l_ = s.pscore_l_;
75 Score_element::~Score_element()
77 assert (status_i_ >=0);
80 delete dim_cache_[X_AXIS];
81 delete dim_cache_[Y_AXIS];
86 Score_element::get_real (String s) const
88 return gh_scm2double (get_elt_property (s));
92 Score_element::set_real (String s, Real r)
94 set_elt_property (s, gh_double2scm (r));
97 // should also have one that takes SCM arg.
99 Score_element::get_elt_property (String nm) const
101 SCM sym = ly_symbol2scm (nm.ch_C());
102 SCM s = scm_assq(sym, element_property_alist_);
109 SCM sym2 = ly_symbol2scm ((name () + ("::" + nm)).ch_C());
112 // should probably check for Type::sym as well.
113 Paper_def * p= pscore_l_->paper_l_;
114 if (p->default_properties_.try_retrieve (sym2, &val))
116 else if (p->default_properties_.try_retrieve (sym, &val))
120 return SCM_UNDEFINED;
124 Score_element::remove_elt_property (String key)
126 SCM s = get_elt_property (key);
127 SCM sym = ly_symbol2scm (key.ch_C());
128 element_property_alist_ = scm_assq_remove_x (element_property_alist_, sym);
136 Score_element::set_elt_property (String k, SCM v)
138 SCM s = ly_symbol2scm (k.ch_C( ));
139 element_property_alist_ = scm_assoc_set_x (element_property_alist_, s, v);
143 Score_element::molecule_extent(Dimension_cache const *c)
145 Score_element *s = dynamic_cast<Score_element*>(c->element_l());
146 Molecule m = s->do_brew_molecule();
147 return m.extent()[c->axis ()];
152 Score_element::print() const
155 DEBUG_OUT << classname(this) << "{\n";
157 if (flower_dstream && !flower_dstream->silent_b ("Score_element"))
158 ly_display_scm (element_property_alist_);
161 DEBUG_OUT << "Copy ";
169 Score_element::paper_l () const
171 return pscore_l_ ? pscore_l_->paper_l_ : 0;
175 Score_element::lookup_l () const
179 Score_element * urg = (Score_element*)this;
180 SCM sz = urg->remove_elt_property ("fontsize");
181 int i = (gh_number_p (sz))
185 urg->lookup_l_ = (Lookup*)pscore_l_->paper_l_->lookup_l (i);
191 Score_element::add_processing()
193 assert (status_i_ >=0);
202 if (get_elt_property ("self-alignment-X") != SCM_UNDEFINED
203 && !dim_cache_[X_AXIS]->off_callback_l_)
205 add_offset_callback (Side_position_interface::aligned_on_self,X_AXIS);
208 if (get_elt_property ("self-alignment-Y") != SCM_UNDEFINED
209 && !dim_cache_[X_AXIS]->off_callback_l_)
212 add_offset_callback (Side_position_interface::aligned_on_self, Y_AXIS);
220 Score_element::calculate_dependencies (int final, int busy,
221 Score_element_method_pointer funcptr)
223 assert (status_i_ >=0);
225 if (status_i_ >= final)
228 assert (status_i_!= busy);
231 for (SCM d= get_elt_property ("dependencies"); d != SCM_EOL; d = gh_cdr (d))
233 unsmob_element (gh_car (d))
234 ->calculate_dependencies (final, busy, funcptr);
242 Score_element::output_processing ()
244 if (to_boolean (get_elt_property ("transparent")))
248 Molecule m (do_brew_molecule ());
249 Offset o (relative_coordinate (0, X_AXIS), relative_coordinate (0, Y_AXIS));
251 SCM s = get_elt_property ("extra-offset");
254 Real il = paper_l ()->get_var ("interline");
255 o[X_AXIS] += il * gh_scm2double (gh_car (s));
256 o[Y_AXIS] += il * gh_scm2double (gh_cdr (s));
259 pscore_l_->outputter_l_->output_molecule (m.expr_, o, classname(this));
268 Score_element::do_break_processing()
273 Score_element::after_line_breaking ()
278 Score_element::do_breakable_col_processing()
280 handle_prebroken_dependencies();
284 Score_element::before_line_breaking ()
289 Score_element::do_space_processing ()
294 Score_element::do_add_processing()
301 Score_element::do_brew_molecule() const
303 SCM glyph = get_elt_property ("glyph");
304 if (gh_string_p (glyph))
306 return lookup_l ()->afm_find (String (ly_scm2string (glyph)));
319 Score_element::line_l() const
325 Score_element::add_dependency (Score_element*e)
329 Group_interface gi (this, "dependencies");
333 programming_error ("Null dependency added");
340 Do break substitution in S, using CRITERION. Return new value.
341 CRITERION is either a SMOB pointer to the desired line, or a number
342 representing the break direction. Do not modify SRC.
345 Score_element::handle_broken_smobs (SCM src, SCM criterion)
350 Score_element *sc = unsmob_element (src);
353 if (criterion == SCM_UNDEFINED)
354 return SCM_UNDEFINED;
355 else if (gh_number_p (criterion))
357 Item * i = dynamic_cast<Item*> (sc);
358 Direction d = to_dir (criterion);
359 if (i && i->break_status_dir () != d)
361 Item *br = i->find_broken_piece (d);
362 return (br) ? br->self_scm_ : SCM_UNDEFINED;
367 Score_element * ln = unsmob_element ( criterion);
368 Line_of_score * line = dynamic_cast<Line_of_score*> (ln);
369 Score_element * br =0;
370 Line_of_score * dep_line = sc->line_l ();
371 if (dep_line != line)
373 br = sc->find_broken_piece (line);
374 return (br) ? br->self_scm_ : SCM_UNDEFINED;
377 return SCM_UNDEFINED;
380 else if (gh_pair_p (src))
383 UGH! breaks on circular lists.
385 SCM car = handle_broken_smobs (gh_car (src), criterion);
386 SCM cdr = gh_cdr (src);
388 if (car == SCM_UNDEFINED
389 && (gh_pair_p (cdr) || cdr == SCM_EOL))
392 This is tail-recursion, ie.
394 return handle_broken_smobs (cdr, criterion);
396 We don't want to rely on the compiler to do this. */
401 return gh_cons (car, handle_broken_smobs (cdr, criterion));
410 Score_element::handle_broken_dependencies()
412 Spanner * s= dynamic_cast<Spanner*> (this);
413 if (original_l_ && s)
418 for (int i = 0; i< s->broken_into_l_arr_ .size (); i++)
420 Score_element * sc = s->broken_into_l_arr_[i];
421 Line_of_score * l = sc->line_l ();
422 s->broken_into_l_arr_[i]->element_property_alist_ =
423 handle_broken_smobs (element_property_alist_,
424 l ? l->self_scm_ : SCM_UNDEFINED);
428 Line_of_score *line = line_l();
429 element_property_alist_
430 = handle_broken_smobs (element_property_alist_,
431 line ? line->self_scm_ : SCM_UNDEFINED);
439 Score_element::handle_prebroken_dependencies()
441 if (Item*i =dynamic_cast<Item*> (this))
445 element_property_alist_
446 = handle_broken_smobs (original_l_->element_property_alist_,
447 gh_int2scm (i->break_status_dir ()));
453 Score_element::linked_b() const
459 Score_element::do_print () const
464 Score_element::find_broken_piece (Line_of_score*) const
470 Score_element::translate_axis (Real y, Axis a)
472 dim_cache_[a]->translate (y);
476 Score_element::relative_coordinate (Score_element const*e, Axis a) const
478 return dim_cache_[a]->relative_coordinate (e ? e->dim_cache_[a] : 0);
482 Score_element::common_refpoint (Score_element const* s, Axis a) const
484 Dimension_cache *dim = dim_cache_[a]->common_refpoint (s->dim_cache_[a]);
485 return dim ? dim->element_l () : 0;
489 Score_element::set_empty (Axis a)
491 dim_cache_[a]->extent_callback_l_ =0;
495 Score_element::empty_b (Axis a)const
497 return !dim_cache_[a]->extent_callback_l_;
501 Score_element::extent (Axis a) const
503 Dimension_cache const * d = dim_cache_[a];
505 return d->get_dim ();
510 Score_element::parent_l (Axis a) const
512 Dimension_cache*d= dim_cache_[a]->parent_l_;
513 return d ? d->elt_l_ : 0;
517 Score_element::common_refpoint (Link_array<Score_element> gs, Axis a) const
519 Dimension_cache * common = dim_cache_[a];
520 for (int i=0; i < gs.size (); i++)
522 common = common->common_refpoint (gs[i]->dim_cache_[a]);
525 return common->element_l ();
529 Score_element::name () const
531 return classname (this);
535 Score_element::add_offset_callback (Offset_cache_callback cb, Axis a)
537 dim_cache_[a]->off_callbacks_.push (cb);
541 Score_element::has_offset_callback_b (Offset_cache_callback cb, Axis a)const
543 for (int i= dim_cache_[a]->off_callbacks_.size (); i--;)
545 if (dim_cache_[a]->off_callbacks_[i] == cb)
552 Score_element::set_parent (Score_element *g, Axis a)
554 dim_cache_[a]->parent_l_ = g ? g->dim_cache_[a]: 0;
558 Score_element::fixup_refpoint ()
560 for (int a = X_AXIS; a < NO_AXES; a ++)
563 Score_element * parent = parent_l (ax);
568 if (parent->line_l () != line_l ())
570 Score_element * newparent = parent->find_broken_piece (line_l ());
571 set_parent (newparent, ax);
574 if (Item * i = dynamic_cast<Item*> (this))
576 Item *parenti = dynamic_cast<Item*> (parent);
580 Direction my_dir = i->break_status_dir () ;
581 if (my_dir!= parenti->break_status_dir())
583 Item *newparent = parenti->find_broken_piece (my_dir);
584 set_parent (newparent, ax);
593 /****************************************************
595 ****************************************************/
598 #include "ly-smobs.icc"
600 IMPLEMENT_UNSMOB(Score_element, element);
601 IMPLEMENT_SMOBS(Score_element);
603 Score_element::mark_smob (SCM ses)
605 Score_element * s = SMOB_TO_TYPE (Score_element, ses);
606 if (s->self_scm_ != ses)
608 programming_error ("SMOB marking gone awry");
611 return s->element_property_alist_;
615 Score_element::print_smob (SCM s, SCM port, scm_print_state *)
617 Score_element *sc = (Score_element *) gh_cdr (s);
619 scm_puts ("#<Score_element ", port);
620 scm_puts ((char *)sc->name (), port);
623 don't try to print properties, that is too much hassle.
625 scm_puts (" >", port);
630 Score_element::do_smobify_self ()
635 Score_element::equal_p (SCM a, SCM b)
637 return gh_cdr(a) == gh_cdr(b) ? SCM_BOOL_T : SCM_BOOL_F;
642 Score_element::ly_set_elt_property (SCM elt, SCM sym, SCM val)
644 Score_element * sc = unsmob_element (elt);
646 if (!gh_symbol_p (sym))
648 error ("Not a symbol");
649 ly_display_scm (sym);
650 return SCM_UNDEFINED;
655 sc->element_property_alist_ = scm_assoc_set_x (sc->element_property_alist_, sym, val);
659 error ("Not a score element");
660 ly_display_scm (elt);
663 return SCM_UNDEFINED;
668 Score_element::ly_get_elt_property (SCM elt, SCM sym)
670 Score_element * sc = unsmob_element (elt);
674 SCM s = scm_assq(sym, sc->element_property_alist_);
679 return SCM_UNDEFINED;
683 error ("Not a score element");
684 ly_display_scm (elt);
686 return SCM_UNDEFINED;
693 scm_make_gsubr ("ly-get-elt-property", 2, 0, 0, (SCM(*)(...))Score_element::ly_get_elt_property);
694 scm_make_gsubr ("ly-set-elt-property", 3, 0, 0, (SCM(*)(...))Score_element::ly_set_elt_property);
697 ADD_SCM_INIT_FUNC(scoreelt, init_functions);