source file of the GNU LilyPond music typesetter
- (c) 1997--1998 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1997--1999 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
-#include "p-score.hh"
+#include "dimension-cache.hh"
+#include "paper-score.hh"
#include "debug.hh"
#include "item.hh"
-#include "p-col.hh"
-// #include "elem-group.hh"
+#include "paper-column.hh"
#include "spanner.hh"
+#include "lily-guile.hh"
Item::Item ()
{
- unbroken_original_l_ =0;
- break_priority_i_ = 0;
- breakable_b_ = false;
- break_status_dir_ = CENTER;
broken_to_drul_[LEFT] = broken_to_drul_[RIGHT]=0;
}
-
-
-void
-Item::do_print() const
+bool
+Item::breakable_b () const
{
-#ifndef NPRINT
- DOUT << "breakable_b_: " << breakable_b_ <<
- " break_status_dir_: " << break_status_dir_;
-#endif
+ if (original_l_ )
+ return false;
+
+ Item * i =dynamic_cast<Item*> (parent_l (X_AXIS));
+ return (i) ? i->breakable_b () : to_boolean (get_elt_property( "breakable"));
}
-
Real
Item::hpos_f() const
{
- return absolute_coordinate (X_AXIS);
+ return relative_coordinate (0, X_AXIS);
}
Line_of_score *
Item::line_l() const
{
- Graphical_axis_group *ga = axis_group_l_a_[X_AXIS];
-
- if (!ga)
+ Score_element *g = parent_l (X_AXIS);
+ if (!g)
return 0;
-
- assert (dynamic_cast <Score_element *> (ga));
- return dynamic_cast <Score_element *> (ga)-> line_l ();
+ return dynamic_cast<Score_element *> (g)-> line_l ();
}
-Direction
-Item::break_status_dir() const
-{
- return break_status_dir_;
-}
void
Item::copy_breakable_items()
{
- if (broken_to_drul_[LEFT] || broken_to_drul_[RIGHT])
- return;
Drul_array<Item *> new_copies;
Direction i=LEFT;
do
{
- Item * item_p = dynamic_cast<Item*>(clone());
-
- item_p->break_status_dir_ = i;
+ Score_element * dolly = clone();
+ Item * item_p = dynamic_cast<Item*>(dolly);
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;
+
+ do
+ {
+ broken_to_drul_[i]->handle_prebroken_dependencies();
+ broken_to_drul_[i]->try_visibility_lambda();
+ }
+ while (flip(&i) != LEFT);
}
void
-Item::do_breakable_col_processing()
+Item::try_visibility_lambda ()
{
- if (!breakable_b_)
- return;
+ SCM vis = remove_elt_property ("visibility-lambda");
+ if (gh_procedure_p (vis))
+ {
+ SCM args = scm_listify (gh_int2scm (break_status_dir ()), SCM_UNDEFINED);
+ SCM result = gh_apply (vis, args);
+ int trans = gh_scm2bool (gh_car (result));
+ int empty = gh_scm2bool (gh_cdr (result));
+
+ if (empty)
+ {
+ set_empty (X_AXIS);
+ set_empty ( Y_AXIS);
+ }
+ if (trans)
+ set_elt_property ("transparent", SCM_BOOL_T);
+ }
+}
- if (!column_l ()->breakable_b_)
- return;
+bool
+Item::broken_b () const
+{
+ return broken_to_drul_[LEFT] || broken_to_drul_[RIGHT];
+}
- copy_breakable_items();
- handle_prebroken_dependencies();
+void
+Item::do_break ()
+{
+ if (broken_b ())
+ return;
- /*
+ if (breakable_b ())
+ {
+ 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]);
+
+ if (broken_to_drul_[LEFT])
+ {
+ add_dependency (broken_to_drul_[LEFT]);
+ add_dependency (broken_to_drul_[RIGHT]);
+ }
+ }
+ try_visibility_lambda (); // ugh.
}
-Item*
-Item::find_prebroken_piece (Line_of_score*l) const
+void
+Item::do_breakable_col_processing()
+{
+ do_break ();
+}
+
+Score_element*
+Item::find_broken_piece (Line_of_score*l) const
{
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 (Item*)(this);
+
+ Direction d = LEFT;
+ do {
+ Score_element *s = find_broken_piece (d);
+ if (s && s->line_l () == l)
+ return s;
+ }
+ while (flip (&d) != LEFT);
return 0;
}
Item*
-Item::find_prebroken_piece (Direction breakstatus) const
+Item::find_broken_piece (Direction d) const
{
- if (!breakstatus)
- return (Item *) this; // ugh
- else
- return (Item*) broken_to_drul_[breakstatus];
+ Item * me = (Item *) (this);
+ if (!d)
+ return me;
+ else
+ {
+ me->do_break ();
+ return dynamic_cast<Item*> (broken_to_drul_[d]);
+ }
}
-void
-Item::handle_prebroken_dependencies()
+
+
+bool
+Item::broken_original_b () const
{
- if (breakable_b_)
- Score_element::handle_prebroken_dependencies();
+ return broken_to_drul_[LEFT] || broken_to_drul_[RIGHT];
}
+#if 0
int
Item::left_right_compare(Item const *l, Item const *r)
{
- while (!(dynamic_cast<Paper_column const *> (l)))
- l = dynamic_cast<Item const*> (l->axis_group_l_a_[X_AXIS]);
- while (!(dynamic_cast<Paper_column const *> (r)))
- r = dynamic_cast<Item const*> (r->axis_group_l_a_[X_AXIS]);
-
- Paper_column *p1 = (Paper_column*)l;
- Paper_column* p2 = (Paper_column*)r;
+ Paper_column *p1 = l->column_l ();
+ Paper_column* p2 = r->column_l ();
return p1->rank_i () - p2->rank_i ();
}
+#endif
-
-bool
-Item::linked_b() const
+Paper_column *
+Item::column_l () const
{
- return Score_element::linked_b() || attached_span_l_arr_.size();
+ return dynamic_cast<Item*> (parent_l (X_AXIS))->column_l ();
}
-void
-Item::do_junk_links()
+Item::Item (Item const &s)
+ : Score_element (s)
{
- attached_span_l_arr_.set_size(0);
+ broken_to_drul_[LEFT] = broken_to_drul_[RIGHT] =0;
}
-void
-Item::do_unlink()
+Direction
+Item::break_status_dir () const
{
- Link_array<Spanner> attached=attached_span_l_arr_;
- for (int i=0; i < attached.size (); i++)
+ if (original_l_)
{
- 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;
-}
+ Item * i = dynamic_cast<Item*> (original_l_);
-Paper_column *
-Item::column_l () const
-{
- return dynamic_cast<Item*> (axis_group_l_a_[X_AXIS]) ->column_l ();
+ return (i->broken_to_drul_[LEFT] == this) ? LEFT : RIGHT;
+ }
+ else
+ return CENTER;
}
-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_;
-}
projects / lilypond.git / blobdiff