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git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@2688 a592a061-630c-0410-9148-cb99ea01b6c8
159 lines
3.0 KiB
C++
159 lines
3.0 KiB
C++
// -*- C++ -*-
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#ifndef MATH_GRID_H
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#define MATH_GRID_H
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#include "math_nestinset.h"
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#include "vspace.h"
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#include "LString.h"
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#ifdef __GNUG__
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#pragma interface
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#endif
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/** Gridded math inset base class.
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This is the base to all grid-like editable math objects
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like array and eqnarray.
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\author André Pönitz 2001
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*/
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class MathGridInset : public MathNestInset {
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/// additional per-row information
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struct RowInfo {
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///
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RowInfo();
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///
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int skipPixels() const;
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/// cached descent
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mutable int descent_;
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/// cached ascent
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mutable int ascent_;
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/// cached offset
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mutable int offset_;
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/// hline abow this row?
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bool upperline_;
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/// hline below this row?
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bool lowerline_;
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/// distance
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LyXLength skip_;
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};
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// additional per-row information
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struct ColInfo {
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///
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ColInfo();
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/// currently possible: 'l', 'c', 'r'
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char align_;
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/// cache for drawing
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int h_offset;
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/// cached width
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mutable int width_;
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/// cached offset
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mutable int offset_;
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/// do we need a line to the left?
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bool leftline_;
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/// do we need a line to the right?
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bool rightline_;
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/// additional amount to be skipped when drawing
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int skip_;
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};
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public:
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///
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MathGridInset(int m, int n);
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///
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void write(std::ostream &, bool fragile) const;
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///
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void metrics(MathStyles st) const;
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///
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void draw(Painter &, int x, int y) const;
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///
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void halign(string const &);
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///
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void halign(char c, int col);
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///
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char halign(int col) const;
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///
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void valign(char c);
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///
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char valign() const;
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///
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void vskip(LyXLength const &, int row);
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///
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LyXLength vskip(int row) const;
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///
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void resize(short int type, int cols);
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///
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const RowInfo & rowinfo(int row) const;
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///
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RowInfo & rowinfo(int row);
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///
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bool isGrid() const { return true; }
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///
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int ncols() const { return colinfo_.size(); }
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///
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int nrows() const { return rowinfo_.size(); }
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///
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int col(int idx) const { return idx % ncols(); }
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///
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int row(int idx) const { return idx / ncols(); }
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///
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int cellXOffset(int idx) const;
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///
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int cellYOffset(int idx) const;
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///
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bool idxUp(int &, int &) const;
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///
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bool idxDown(int &, int &) const;
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///
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bool idxLeft(int &, int &) const;
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///
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bool idxRight(int &, int &) const;
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///
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bool idxFirst(int &, int &) const;
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///
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bool idxLast(int &, int &) const;
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///
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void idxDelete(int &, bool &, bool &);
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///
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void idxDeleteRange(int, int);
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///
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void addRow(int);
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///
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void delRow(int);
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///
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void addCol(int);
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///
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void delCol(int);
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///
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virtual void appendRow();
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///
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int index(int row, int col) const;
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///
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std::vector<int> idxBetween(int from, int to) const;
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///
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virtual int defaultColSpace(int) { return 10; }
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///
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virtual char defaultColAlign(int) { return 'c'; }
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///
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void setDefaults();
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protected:
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/// returns proper 'end of line' code for LaTeX
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string eolString(int row) const;
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/// returns proper 'end of column' code for LaTeX
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string eocString(int col) const;
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/// row info
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std::vector<RowInfo> rowinfo_;
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/// column info
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std::vector<ColInfo> colinfo_;
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///
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char v_align_; // add approp. type
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};
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#endif
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