source file of the GNU LilyPond music typesetter
- (c) 1998--1999 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1998--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
#include "dimension-cache.hh"
#include "parray.hh"
-#include "graphical-element.hh"
+#include "score-element.hh"
+
Dimension_cache::Dimension_cache (Dimension_cache const &d)
{
init();
callback_l_ = d.callback_l_;
- empty_b_ = d.empty_b_;
basic_offset_ = d.basic_offset_;
extra_offset_ = d.extra_offset_;
off_valid_b_ = d.off_valid_b_;
off_callbacks_ = d.off_callbacks_;
+ parent_l_ = d.parent_l_;
}
Dimension_cache::Dimension_cache ()
Dimension_cache::init()
{
callback_l_ =0;
-
basic_offset_ =0.0;
extra_offset_ =0.0;
dim_.set_empty ();
parent_l_ =0;
valid_b_ = false;
- empty_b_ = false;
off_valid_b_ = false;
}
-void
-Dimension_cache::invalidate ()
-{
- off_valid_b_ =false;
- valid_b_ = false;
-}
-
-
-void
-Dimension_cache::set_offset (Real x)
-{
- // ugh!
- /*
-
- UGH ! UGH !
-
- */
-
- extra_offset_ = x;
-}
-
void
Dimension_cache::translate (Real x)
{
Real
Dimension_cache::get_offset () const
{
- if (!off_valid_b_)
+ Dimension_cache *me = (Dimension_cache*) this;
+ while (off_callbacks_.size ())
{
- Dimension_cache *d = (Dimension_cache*) this;
-
- d->basic_offset_ =0.0;
- d->off_valid_b_ = true;
- for (int i=0; i < off_callbacks_.size (); i++)
- d->basic_offset_ += (*off_callbacks_[i]) (d);
+ Offset_cache_callback c = me->off_callbacks_[0];
+ me->off_callbacks_.del (0);
+ me->basic_offset_ += (*c) (me);
}
-
return basic_offset_ + extra_offset_;
}
Dimension_cache *
Dimension_cache::common_refpoint (Dimension_cache const* s) const
{
- Link_array<Dimension_cache> my_groups;
- for (Dimension_cache const *c = this; c ; c = c->parent_l_)
- my_groups.push ((Dimension_cache*)c);
-
- Dimension_cache const *common=0;
-
- for (Dimension_cache const * d = s; !common && d; d = d->parent_l_)
- common = (Dimension_cache const*)my_groups.find_l (d);
-
- return (Dimension_cache*) common;
+ /*
+ I don't like the quadratic aspect of this code. Maybe this should
+ be rewritten some time, but the largest chain of parents might be
+ 10 high or so, so it shouldn't be a real issue. */
+ for (Dimension_cache const *c = this; c; c = c->parent_l_)
+ for (Dimension_cache const * d = s; d; d = d->parent_l_)
+ if (d == c)
+ return (Dimension_cache*)d;
+
+ return 0;
}
-
-
-void
-Dimension_cache::set_empty (bool b)
+Interval
+Dimension_cache::point_dimension_callback (Dimension_cache const* )
{
- if (empty_b_ != b)
- {
- empty_b_ = b;
- if (!empty_b_)
- invalidate ();
- }
-}
+ return Interval (0,0);
+}
Interval
Dimension_cache::get_dim () const
{
Interval r;
- if (empty_b_)
+ Dimension_cache *nc = ((Dimension_cache*)this);
+ if (!callback_l_)
{
- r.set_empty ();
- return r;
+ nc->dim_.set_empty ();
}
-
- if (!valid_b_)
+ else if (!valid_b_)
{
- Dimension_cache *nc = ((Dimension_cache*)this);
nc->dim_= (*callback_l_ ) (nc);
nc->valid_b_ = true;
}
r=dim_;
-
return r;
}