-/*
+/*
dimension-cache.hh -- declare Dimension_cache
-
+
source file of the GNU LilyPond music typesetter
-
- (c) 1998--1999 Han-Wen Nienhuys <hanwen@cs.uu.nl>
-
- */
+
+ (c) 1998--2007 Han-Wen Nienhuys <hanwen@xs4all.nl>
+*/
#ifndef DIMENSION_CACHE_HH
#define DIMENSION_CACHE_HH
-#include "interval.hh"
-#include "real.hh"
#include "lily-proto.hh"
-#include "parray.hh"
+#include "std-vector.hh"
+#include "dimension-cache-callback.hh"
+#include "lily-guile.hh"
-class Dimension_cache;
-typedef Interval (*Dim_cache_callback)(Dimension_cache const *);
-typedef Real (*Offset_cache_callback)(Dimension_cache const *);
-
-/**
- Adminstration of offset dimension info.
- */
+/*
+ XY offset/refpoint/extent structure.
+*/
class Dimension_cache
{
- bool valid_b_;
- /** Is this element dimensionless?.
- This is private to guarantee correctness of the cache
- */
- bool empty_b_;
- Interval dim_;
- /**
- The offset wrt. to the center of #parent_l_#
- */
-
- Real extra_offset_;
- Real basic_offset_;
-
- bool off_valid_b_;
-
-
- Graphical_element *elt_l_;
- Dim_cache_callback callback_l_;
- friend class Graphical_element;
-
+ Interval *extent_;
+ Real *offset_;
+ Grob *parent_;
void init ();
-public:
- Offset_cache_callback off_callback_l_;
+ void clear ();
- Axis axis () const;
- Real get_offset () const;
- void set_callback (Dim_cache_callback);
- /** The #offset_# is defined with regard to this graphical_element/
- dimension_cache. */
- void set_offset_callback (Offset_cache_callback);
- Dimension_cache * parent_l_;
-
- Graphical_element *element_l () const { return elt_l_; }
-
- void invalidate ();
- void invalidate_dependencies ();
+ friend class Grob;
- Dimension_cache(Dimension_cache const&);
+ Dimension_cache (Dimension_cache const &);
+ ~Dimension_cache ();
Dimension_cache ();
-
-
- /**
- Find the offset relative to D. If D equals THIS, then it is 0.
- Otherwise, it recursively defd as
-
- OFFSET_ + PARENT_L_->relative_coordinate (D)
- */
- Real relative_coordinate (Dimension_cache *d) const;
- Dimension_cache*common_refpoint (Dimension_cache const* s) const;
- Dimension_cache*common_refpoint (Link_array<Dimension_cache> caches) const;
- void set_empty (bool);
- void translate (Real);
-
- // junkme.
- void set_offset (Real);
-
- bool valid_b () const { return valid_b_; }
- bool empty_b() const { return empty_b_; }
- Interval get_dim () const;
};
-
#endif /* DIMENSION_CACHE_HH */