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2c81992188
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@3522 a592a061-630c-0410-9148-cb99ea01b6c8
89 lines
2.6 KiB
C++
89 lines
2.6 KiB
C++
#ifndef MATH_NESTINSET_H
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#define MATH_NESTINSET_H
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#ifdef __GNUG__
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#pragma interface
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#endif
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#include "math_diminset.h"
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/** Abstract base class for all math objects that contain nested items.
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This is basically everything that is not a single character or a
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single symbol
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*/
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class LaTeXFeatures;
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class MathNestInset : public MathDimInset {
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public:
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/// nestinsets have a fixed size to start with
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explicit MathNestInset(idx_type ncells);
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/// the size is usuall some sort of convex hull of the cells
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void metrics(MathMetricsInfo const & st) const;
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/// draw the object, sets xo_ and yo_ cached values
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void draw(Painter &, int x, int y) const;
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/// appends itself with macro arguments substituted
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void substitute(MathMacro const & macro);
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/// identifies NestInsets
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MathNestInset * asNestInset() { return this; }
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/// order of movement through the cells when pressing the left key
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bool idxLeft(idx_type & idx, pos_type & pos) const;
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/// order of movement through the cells when pressing the right key
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bool idxRight(idx_type & idx, pos_type & pos) const;
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/// move one physical cell up
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bool idxNext(idx_type & idx, pos_type & pos) const;
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/// move one physical cell down
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bool idxPrev(idx_type & idx, pos_type & pos) const;
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/// target pos when we enter the inset from the left by pressing "Right"
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bool idxFirst(idx_type & idx, pos_type & pos) const;
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/// target pos when we enter the inset from the right by pressing "Left"
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bool idxLast(idx_type & idx, pos_type & pos) const;
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/// where should we go if we press home?
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bool idxHome(idx_type & idx, pos_type & pos) const;
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/// where should we go if we press end?
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bool idxEnd(idx_type & idx, pos_type & pos) const;
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/// number of cells currently governed by us
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idx_type nargs() const;
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/// direct access to the cell
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MathArray & cell(idx_type);
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/// direct access to the cell
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MathArray const & cell(idx_type) const;
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/// direct access to the cell including the drawing cache
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MathXArray & xcell(idx_type);
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/// direct access to the cell including the drawing cache
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MathXArray const & xcell(idx_type) const;
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/// can we move into this cell (see macroarg.h)
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bool isActive() const { return nargs() > 0; }
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/// request "external features"
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void validate(LaTeXFeatures & features) const;
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/// match in all cells
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bool match(MathInset *) const;
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/// replace in all cells
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void replace(ReplaceData &);
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/// do we contain a given pattern?
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bool contains(MathArray const &);
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/// debug helper
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void dump() const;
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///
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virtual bool editing() const;
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protected:
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/// we store the cells in a vector
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typedef std::vector<MathXArray> cells_type;
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/// thusly:
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cells_type cells_;
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};
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#endif
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