source file of the GNU LilyPond music typesetter
- (c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
+ (c) 1997--1998 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
+
#include "p-score.hh"
#include "debug.hh"
#include "item.hh"
#include "p-col.hh"
+// #include "elem-group.hh"
+#include "spanner.hh"
-Item::Item()
+Item::Item ()
{
- pcol_l_ = 0;
-
- broken_to_a_[0]
- = broken_to_a_[1]=0;
+ unbroken_original_l_ =0;
+ break_priority_i_ = 0;
+ breakable_b_ = false;
+ break_status_dir_ = CENTER;
+ broken_to_drul_[LEFT] = broken_to_drul_[RIGHT]=0;
}
-IMPLEMENT_STATIC_NAME(Item);
-IMPLEMENT_IS_TYPE_B1(Item, Score_elem);
+IMPLEMENT_IS_TYPE_B1(Item, Score_element);
void
Item::do_print() const
{
#ifndef NPRINT
- mtor << "(unknown)";
+ DOUT << "breakable_b_: " << breakable_b_ <<
+ " break_status_dir_: " << break_status_dir_;
#endif
}
Real
-Item::hpos_f()const
+Item::hpos_f() const
{
- return pcol_l_->hpos_f_ + offset().x;
+ return absolute_coordinate (X_AXIS);
}
-
-
Line_of_score *
-Item::line_l()const
+Item::line_l() const
{
- return pcol_l_->line_l_;
+ Graphical_axis_group *ga = axis_group_l_a_[X_AXIS];
+
+ if (!ga)
+ return 0;
+
+ assert (ga->access_Score_element());
+ return ga->access_Score_element ()-> line_l ();
}
-int
-Item::break_status_i() const
+Direction
+Item::break_status_dir() const
{
- PCol * c = pcol_l_;
- if (c->breakable_b())
- return 0;
- else if (!c->daddy_l_)
- return 0;
- else if (c == c->daddy_l_->prebreak_p_)
- return -1;
- else
- return 1;
+ return break_status_dir_;
}
void
-Item::do_breakable_col_processing()
+Item::copy_breakable_items()
{
- PCol * c = pcol_l_;
- if (!c->breakable_b())
- return;
-
- for (int i=0; i < 2; i++) {
- broken_to_a_[i] = clone()->item();
- pscore_l_->typeset_item(broken_to_a_[i], c, -1+ 2*i);
- broken_to_a_[i]->handle_prebroken_dependencies();
+ if (broken_to_drul_[LEFT] || broken_to_drul_[RIGHT])
+ return;
+ Drul_array<Item *> new_copies;
+ Direction i=LEFT;
+ do
+ {
+ Item * item_p = clone()->access_Item ();
+
+ item_p->break_status_dir_ = i;
+ pscore_l_->typeset_element (item_p);
+ item_p->handle_prebroken_dependencies();
+ new_copies[i] =item_p;
}
+ while (flip(&i) != LEFT);
+ broken_to_drul_= new_copies;
+}
- handle_prebroken_dependencies();
+void
+Item::do_breakable_col_processing()
+{
+ if (!breakable_b_)
+ return;
+
+ if (!column_l ()->breakable_b_)
+ return;
+
+ copy_breakable_items();
+ handle_prebroken_dependencies();
+
+ /*
+ Otherwise the broken items won't be pre_process()'ed.
+ */
+ add_dependency (broken_to_drul_[LEFT]);
+ add_dependency (broken_to_drul_[RIGHT]);
}
Item*
-Item::find_prebroken_piece(Line_of_score*l) const
+Item::find_prebroken_piece (Line_of_score*l) const
{
- if (line_l() == l)
- return this;
- else if (broken_to_a_[0] && broken_to_a_[0]->line_l() == l)
- return broken_to_a_[0];
- else if (broken_to_a_[1] && broken_to_a_[1]->line_l() == l)
- return broken_to_a_[1];
-
- return 0;
+ if (line_l() == l)
+ return (Item*)this;
+ else if (broken_to_drul_[LEFT] && broken_to_drul_[LEFT]->line_l() == l)
+ return broken_to_drul_[LEFT];
+ else if (broken_to_drul_[RIGHT] && broken_to_drul_[RIGHT]->line_l() == l)
+ return broken_to_drul_[RIGHT];
+
+ return 0;
}
Item*
-Item::find_prebroken_piece(PCol*c)const
+Item::find_prebroken_piece (Direction breakstatus) const
+{
+ if (!breakstatus)
+ return (Item *) this; // ugh
+ else
+ return (Item*) broken_to_drul_[breakstatus];
+}
+
+void
+Item::handle_prebroken_dependencies()
{
- if (c == pcol_l_ )
- return (Item *) this; // ugh
+ if (breakable_b_)
+ Score_element::handle_prebroken_dependencies();
+}
+
+int
+Item::left_right_compare(Item const *l, Item const *r)
+{
+ while (!l->is_type_b (Paper_column::static_name ()))
+ l = l->axis_group_l_a_[X_AXIS]->access_Score_element ()->access_Item ();
+ while (!r->is_type_b (Paper_column::static_name ()))
+ r = r->axis_group_l_a_[X_AXIS]->access_Score_element ()->access_Item ();
+
+ Paper_column *p1 = (Paper_column*)l;
+ Paper_column* p2 = (Paper_column*)r;
+ return p1->rank_i () - p2->rank_i ();
+}
- if (c == pcol_l_->prebreak_p_)
- return (Item *) broken_to_a_[0];
- else if (c==pcol_l_->postbreak_p_)
- return (Item *)broken_to_a_[1];
- assert(false);
+bool
+Item::linked_b() const
+{
+ return Score_element::linked_b() || attached_span_l_arr_.size();
}
void
-Item::handle_prebroken_dependencies()
+Item::do_junk_links()
+{
+ attached_span_l_arr_.set_size(0);
+}
+
+void
+Item::do_unlink()
+{
+ Link_array<Spanner> attached=attached_span_l_arr_;
+ for (int i=0; i < attached.size (); i++)
+ {
+ Spanner *s= attached[i];
+
+ Direction d= LEFT;
+ do {
+ if (s->spanned_drul_[d] == this)
+ s->set_bounds (d, 0);
+ if (unbroken_original_l_
+ && unbroken_original_l_-> broken_to_drul_[d] == this)
+ unbroken_original_l_->broken_to_drul_[d] = 0;
+ } while (flip (&d) != LEFT);
+ }
+ assert (!attached_span_l_arr_.size ());
+ unbroken_original_l_ =0;
+}
+
+Paper_column *
+Item::column_l () const
+{
+ return axis_group_l_a_[X_AXIS]->access_Score_element ()->access_Item ()->column_l ();
+}
+
+Item::Item (Item const &s)
+ : Score_element (s)
+{
+ unbroken_original_l_ = &s;
+ /* do not copy attached_span_l_arr_ */
+ breakable_b_ = s.breakable_b_;
+ broken_to_drul_[LEFT] = broken_to_drul_[RIGHT] =0;
+ break_status_dir_ = s.break_status_dir_;
+ break_priority_i_ = s.break_priority_i_;
+}
+
+Item *
+Item::access_Item ()
{
- if ( pcol_l_->breakable_b() || pcol_l_->daddy_l_ )
- Score_elem::handle_prebroken_dependencies();
+ return this;
}
projects / lilypond.git / blobdiff