source file of the GNU LilyPond music typesetter
- (c) 1997--1998 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1997--2000 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"
+#include "line-of-score.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;
}
-IMPLEMENT_IS_TYPE_B1(Item, Score_element);
-
-void
-Item::do_print() const
+/**
+ Item copy ctor. Copy nothing: everything should be a elt property
+ or a special purpose pointer (such as broken_to_drul_[]) */
+Item::Item (Item const &s)
+ : Score_element (s)
{
-#ifndef NPRINT
- DOUT << "breakable_b_: " << breakable_b_ <<
- " break_status_dir_: " << break_status_dir_;
-#endif
+ broken_to_drul_[LEFT] = broken_to_drul_[RIGHT] =0;
}
-Real
-Item::hpos_f() const
+
+bool
+Item::breakable_b () const
{
- return absolute_coordinate (X_AXIS);
+ 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"));
}
Line_of_score *
Item::line_l() const
{
- 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 ();
+ Score_element *g = parent_l (X_AXIS);
+ return g ? g->line_l () : 0;
}
-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 = clone()->access_Item ();
-
- item_p->break_status_dir_ = i;
- pscore_l_->typeset_element (item_p);
- item_p->handle_prebroken_dependencies();
+ Score_element * dolly = clone();
+ Item * item_p = dynamic_cast<Item*>(dolly);
+ pscore_l_->line_l_->typeset_element (item_p);
new_copies[i] =item_p;
}
while (flip(&i) != LEFT);
broken_to_drul_= new_copies;
}
-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
+bool
+Item::broken_b () 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 0;
+ return broken_to_drul_[LEFT] || broken_to_drul_[RIGHT];
}
-Item*
-Item::find_prebroken_piece (Direction breakstatus) const
-{
- if (!breakstatus)
- return (Item *) this; // ugh
- else
- return (Item*) broken_to_drul_[breakstatus];
-}
+/*
+ Generate items for begin and end-of line.
+ */
void
-Item::handle_prebroken_dependencies()
+Item::discretionary_processing()
{
- if (breakable_b_)
- Score_element::handle_prebroken_dependencies();
+ if (broken_b ())
+ return;
+
+ if (breakable_b ())
+ copy_breakable_items();
}
-int
-Item::left_right_compare(Item const *l, Item const *r)
+Score_element*
+Item::find_broken_piece (Line_of_score*l) const
{
- 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 (line_l() == l)
+ return (Item*)(this);
+ Direction d = LEFT;
+ do {
+ Score_element *s = broken_to_drul_[d];
+ if (s && s->line_l () == l)
+ return s;
+ }
+ while (flip (&d) != LEFT);
-bool
-Item::linked_b() const
-{
- return Score_element::linked_b() || attached_span_l_arr_.size();
+ return 0;
}
-void
-Item::do_junk_links()
-{
- attached_span_l_arr_.set_size(0);
-}
-void
-Item::do_unlink()
+Item*
+Item::find_prebroken_piece (Direction d) const
{
- 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;
+ Item * me = (Item *) (this);
+ if (!d)
+ return me;
+ return dynamic_cast<Item*> (broken_to_drul_[d]);
}
Paper_column *
Item::column_l () const
{
- return axis_group_l_a_[X_AXIS]->access_Score_element ()->access_Item ()->column_l ();
+ return dynamic_cast<Item*> (parent_l (X_AXIS))->column_l ();
}
-Item::Item (Item const &s)
- : Score_element (s)
+Direction
+Item::break_status_dir () const
{
- 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_;
+ if (original_l_)
+ {
+ Item * i = dynamic_cast<Item*> (original_l_);
+
+ return (i->broken_to_drul_[LEFT] == this) ? LEFT : RIGHT;
+ }
+ else
+ return CENTER;
}
-Item *
-Item::access_Item ()
+void
+Item::handle_prebroken_dependencies ()
{
- return this;
+ if (original_l_)
+ {
+ property_alist_
+ = handle_broken_smobs (original_l_->property_alist_,
+ gh_int2scm (break_status_dir ()));
+ pointer_alist_
+ = handle_broken_smobs (original_l_->pointer_alist_,
+ gh_int2scm (break_status_dir ()));
+ }
+
+ /*
+ Can't do this earlier, because try_visibility_lambda () might set
+ the elt property transparent, which would then be copied.
+ */
+ 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);
+ bool trans = gh_scm2bool (gh_car (result));
+ bool empty = gh_scm2bool (gh_cdr (result));
+
+ if (empty)
+ {
+ set_extent_callback (0, X_AXIS);
+ set_extent_callback (0, Y_AXIS);
+ }
+ if (trans)
+ set_elt_property ("transparent", SCM_BOOL_T);
+ }
}
projects / lilypond.git / blobdiff