1 #ifndef MATH_NESTINSET_H
2 #define MATH_NESTINSET_H
8 #include "math_diminset.h"
10 /** Abstract base class for all math objects that contain nested items.
11 This is basically everything that is not a single character or a
18 class MathNestInset : public MathDimInset {
20 /// nestinsets have a fixed size to start with
21 explicit MathNestInset(idx_type ncells);
23 /// the size is usuall some sort of convex hull of the cells
24 void metrics(MathMetricsInfo const & st) const;
25 /// draw the object, sets xo_ and yo_ cached values
26 void draw(Painter &, int x, int y) const;
27 /// appends itself with macro arguments substituted
28 void substitute(MathMacro const & macro);
29 /// identifies NestInsets
30 MathNestInset * asNestInset() { return this; }
32 /// order of movement through the cells when pressing the left key
33 bool idxLeft(idx_type & idx, pos_type & pos) const;
34 /// order of movement through the cells when pressing the right key
35 bool idxRight(idx_type & idx, pos_type & pos) const;
37 /// move one physical cell up
38 bool idxNext(idx_type & idx, pos_type & pos) const;
39 /// move one physical cell down
40 bool idxPrev(idx_type & idx, pos_type & pos) const;
42 /// target pos when we enter the inset from the left by pressing "Right"
43 bool idxFirst(idx_type & idx, pos_type & pos) const;
44 /// target pos when we enter the inset from the right by pressing "Left"
45 bool idxLast(idx_type & idx, pos_type & pos) const;
47 /// where should we go if we press home?
48 bool idxHome(idx_type & idx, pos_type & pos) const;
49 /// where should we go if we press end?
50 bool idxEnd(idx_type & idx, pos_type & pos) const;
52 /// number of cells currently governed by us
53 idx_type nargs() const;
55 /// direct access to the cell
56 MathArray & cell(idx_type);
57 /// direct access to the cell
58 MathArray const & cell(idx_type) const;
59 /// direct access to the cell including the drawing cache
60 MathXArray & xcell(idx_type);
61 /// direct access to the cell including the drawing cache
62 MathXArray const & xcell(idx_type) const;
64 /// can we move into this cell (see macroarg.h)
65 bool isActive() const { return nargs() > 0; }
66 /// request "external features"
67 void validate(LaTeXFeatures & features) const;
69 /// match in all cells
70 bool match(MathInset *) const;
71 /// replace in all cells
72 void replace(ReplaceData &);
73 /// do we contain a given pattern?
74 bool contains(MathArray const &);
80 /// we store the cells in a vector
81 typedef std::vector<MathXArray> cells_type;