2 graphical-element.hh -- declare Graphical_element
4 source file of the GNU LilyPond music typesetter
6 (c) 1997--1999 Han-Wen Nienhuys <hanwen@cs.uu.nl>
10 #ifndef GRAPHICAL_ELEMENT_HH
11 #define GRAPHICAL_ELEMENT_HH
14 #include "lily-proto.hh"
15 #include "interval.hh"
16 #include "virtual-methods.hh"
18 /** The 2d geometric aspects of a score-element. It was put in a
19 separate class, because Score_element got quite big.
21 class Graphical_element
25 Dimension_cache *dim_cache_[NO_AXES];
28 Set this if anyone points to me, or if I point to anyone.
32 char const * name () const;
33 void set_empty (bool);
35 Graphical_element (Graphical_element const&);
36 virtual ~Graphical_element ();
38 void invalidate_cache (Axis);
39 Interval extent (Axis) const;
44 void translate (Offset);
46 translate in one direction
49 void translate_axis (Real, Axis);
51 Real relative_coordinate (Dimension_cache*group, Axis) const;
52 Real absolute_coordinate (Axis) const;
54 Find the group-element which has both #this# and #s#
56 Dimension_cache*common_group (Graphical_element const* s, Axis a) const;
57 Dimension_cache*common_group (Link_array<Graphical_element> elems, Axis a) const;
59 Graphical_element *parent_l (Axis a) const;
61 virtual void do_print () const;
62 virtual void print () const;
65 #endif // GRAPHICAL_ELEMENT_HH