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 usually 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 getCursorPos(CursorSlice const & cur, int & x, int & y) const;
45 void edit(LCursor & cur, int, int);
47 /// order of movement through the cells when pressing the left key
48 bool idxLeft(LCursor &) const;
49 /// order of movement through the cells when pressing the right key
50 bool idxRight(LCursor &) const;
52 /// move one physical cell up
53 bool idxNext(LCursor &) const;
54 /// move one physical cell down
55 bool idxPrev(LCursor &) const;
57 /// target pos when we enter the inset from the left by pressing "Right"
58 bool idxFirst(LCursor &) const;
59 /// target pos when we enter the inset from the right by pressing "Left"
60 bool idxLast(LCursor &) const;
62 /// where should we go if we press home?
63 bool idxHome(LCursor &) const;
64 /// where should we go if we press end?
65 bool idxEnd(LCursor &) const;
67 /// number of cells currently governed by us
68 idx_type nargs() const;
69 /// access to the lock
71 /// access to the lock
73 /// get notification when the cursor leaves this inset
74 void notifyCursorLeaves(idx_type);
76 /// direct access to the cell
77 MathArray & cell(idx_type);
78 /// direct access to the cell
79 MathArray const & cell(idx_type) const;
81 /// can we move into this cell (see macroarg.h)
82 bool isActive() const;
83 /// request "external features"
84 void validate(LaTeXFeatures & features) const;
86 /// replace in all cells
87 void replace(ReplaceData &);
88 /// do we contain a given pattern?
89 bool contains(MathArray const &) const;
90 /// glue everything to a single cell
91 MathArray glue() 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;
102 DispatchResult priv_dispatch(LCursor & cur, FuncRequest const & cmd);
104 void handleFont(LCursor & cur,
105 std::string const & arg, std::string const & font);
107 void handleFont2(LCursor & cur, std::string const & arg);
109 /// we store the cells in a vector
110 typedef std::vector<MathArray> cells_type;
113 /// if the inset is locked, it can't be entered with the cursor