3 * \file math_nestinset.h
4 * This file is part of LyX, the document processor.
5 * Licence details can be found in the file COPYING.
9 * Full author contact details are available in file CREDITS.
12 #ifndef MATH_NESTINSET_H
13 #define MATH_NESTINSET_H
15 #include "math_diminset.h"
18 /** Abstract base class for all math objects that contain nested items.
19 This is basically everything that is not a single character or a
23 class MathNestInset : public MathDimInset {
25 /// nestinsets have a fixed size to start with
26 explicit MathNestInset(idx_type ncells);
28 /// the size is usuall some sort of convex hull of the cells
29 /// hides inset::metrics() intentionally!
30 void metrics(MetricsInfo const & mi) const;
31 /// draw background if locked
32 void draw(PainterInfo & pi, int x, int y) const;
33 /// draw selection background
34 void drawSelection(PainterInfo & pi,
35 idx_type idx1, pos_type pos1, idx_type idx2, pos_type pos2) const;
36 /// appends itself with macro arguments substituted
37 void substitute(MathMacro const & macro);
38 /// identifies NestInsets
39 MathNestInset * asNestInset() { return this; }
40 /// identifies NestInsets
41 MathNestInset const * asNestInset() const { return this; }
42 /// get cursor position
43 void getScreenPos(idx_type idx, pos_type pos, int & x, int & y) const;
45 /// order of movement through the cells when pressing the left key
46 bool idxLeft(BufferView &) const;
47 /// order of movement through the cells when pressing the right key
48 bool idxRight(BufferView &) const;
50 /// move one physical cell up
51 bool idxNext(BufferView &) const;
52 /// move one physical cell down
53 bool idxPrev(BufferView &) const;
55 /// target pos when we enter the inset from the left by pressing "Right"
56 bool idxFirst(BufferView &) const;
57 /// target pos when we enter the inset from the right by pressing "Left"
58 bool idxLast(BufferView &) const;
60 /// where should we go if we press home?
61 bool idxHome(BufferView &) const;
62 /// where should we go if we press end?
63 bool idxEnd(BufferView &) const;
65 /// number of cells currently governed by us
66 idx_type nargs() const;
67 /// access to the lock
69 /// access to the lock
71 /// get notification when the cursor leaves this inset
72 void notifyCursorLeaves(idx_type);
74 /// direct access to the cell
75 MathArray & cell(idx_type);
76 /// direct access to the cell
77 MathArray const & cell(idx_type) const;
79 /// can we move into this cell (see macroarg.h)
80 bool isActive() const;
81 /// request "external features"
82 void validate(LaTeXFeatures & features) const;
84 /// replace in all cells
85 void replace(ReplaceData &);
86 /// do we contain a given pattern?
87 bool contains(MathArray const &) const;
88 /// glue everything to a single cell
89 MathArray glue() const;
93 /// is the cursor currently somewhere within this inset?
94 virtual bool editing() const;
96 /// writes \\, name(), and args in braces and '\\lyxlock' if necessary
97 void write(WriteStream & os) const;
98 /// writes [, name(), and args in []
99 void normalize(NormalStream & os) const;
104 priv_dispatch(BufferView & bv, FuncRequest const & cmd);
106 /// we store the cells in a vector
107 typedef std::vector<MathArray> cells_type;
110 /// if the inset is locked, it can't be entered with the cursor
113 /// draw four angular markers
114 void drawMarkers(PainterInfo & pi, int x, int y) const;
115 /// draw two angular markers
116 void drawMarkers2(PainterInfo & pi, int x, int y) const;
118 /// add space for markers
119 void metricsMarkers(int frame = 1) const;
120 /// add space for markers
121 void metricsMarkers2(int frame = 1) const;