2 dimension-cache.hh -- declare Dimension_cache
4 source file of the GNU LilyPond music typesetter
6 (c) 1998--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
10 #ifndef DIMENSION_CACHE_HH
11 #define DIMENSION_CACHE_HH
13 #include "interval.hh"
15 #include "lily-proto.hh"
17 #include "dimension-cache-callback.hh"
21 Adminstration of offset dimension info.
28 The offset wrt. to the center of #parent_l_#
35 Score_element *elt_l_;
36 friend class Score_element;
39 Array<Offset_cache_callback> off_callbacks_;
41 What to call to find extent. Nil means empty.
44 Dim_cache_callback extent_callback_l_;
45 static Interval point_dimension_callback (Dimension_cache const* );
47 Real get_offset () const;
48 void set_extent_callback (Dim_cache_callback);
49 Dimension_cache * parent_l_;
51 Score_element *element_l () const { return elt_l_; }
53 Dimension_cache(Dimension_cache const&);
58 Find the offset relative to D. If D equals THIS, then it is 0.
59 Otherwise, it recursively defd as
61 OFFSET_ + PARENT_L_->relative_coordinate (D)
63 Real relative_coordinate (Dimension_cache *d) const;
64 Dimension_cache*common_refpoint (Dimension_cache const* s) const;
65 Dimension_cache*common_refpoint (Link_array<Dimension_cache> caches) const;
66 void set_empty (bool);
67 void translate (Real);
69 bool valid_b () const { return valid_b_; }
71 Interval get_dim () const;
75 #endif /* DIMENSION_CACHE_HH */