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b62b366a67
This reverts part of r10553. There, an extra '//' was added when the last line was empty. However, this really makes an extra line and that is visible when the lines have a line number. The bug #2067 that would have been fixed by this does not seem to 'exist' anymore. git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@30795 a592a061-630c-0410-9148-cb99ea01b6c8
264 lines
6.4 KiB
C++
264 lines
6.4 KiB
C++
// -*- C++ -*-
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/**
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* \file InsetMathGrid.h
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* This file is part of LyX, the document processor.
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* Licence details can be found in the file COPYING.
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*
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* \author André Pönitz
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*
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* Full author contact details are available in file CREDITS.
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*/
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#ifndef MATH_GRID_H
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#define MATH_GRID_H
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#include "InsetMathNest.h"
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#include "Length.h"
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namespace lyx {
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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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*/
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class InsetMathGrid : public InsetMathNest {
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public:
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/// additional per-cell information
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class CellInfo {
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public:
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///
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CellInfo();
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/// a dummy cell before a multicolumn cell
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int dummy_;
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/// special multi colums alignment
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docstring align_;
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/// these should be a per-cell property, but ok to have it here
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/// for single-column grids like paragraphs
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mutable int glue_;
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///
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mutable pos_type begin_;
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///
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mutable pos_type end_;
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};
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/// additional per-row information
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class RowInfo {
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public:
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///
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RowInfo();
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///
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int skipPixels(MetricsInfo const & mi) 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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/// how many hlines above this row?
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unsigned int lines_;
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/// parameter to the line break
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Length crskip_;
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/// extra distance between lines
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int skip_;
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/// Is a page break allowed after this row?
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bool allow_newpage_;
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};
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// additional per-row information
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class ColInfo {
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public:
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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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/// how many lines to the left of this column?
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unsigned int lines_;
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/// additional amount to be skipped when drawing
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int skip_;
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/// Special alignment.
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/// This does also contain align_ and lines_ if it is nonempty.
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/// It needs to be in sync with align_ and lines_ because some
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/// code only uses align_ and lines_.
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docstring special_;
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};
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public:
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/// sets nrows and ncols to 1, vertical alingment to 'c'
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InsetMathGrid();
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/// Note: columns first!
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InsetMathGrid(col_type m, row_type n);
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///
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InsetMathGrid(col_type m, row_type n, char valign, docstring const & halign);
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///
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void metrics(MetricsInfo & mi, Dimension &) const;
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///
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void draw(PainterInfo & pi, int x, int y) const;
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///
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void drawWithMargin(PainterInfo & pi, int x, int y,
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int lmargin = 0, int rmargin = 0) const;
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/// draw decorations.
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void drawDecoration(PainterInfo & pi, int x, int y) const
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{ drawMarkers2(pi, x, y); }
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///
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void metricsT(TextMetricsInfo const & mi, Dimension & dim) const;
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///
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void drawT(TextPainter & pi, int x, int y) const;
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/// extract number of columns from alignment string
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static col_type guessColumns(docstring const & halign);
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/// accepts some LaTeX column codes: p,m,!,@,M,<,>
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void setHorizontalAlignments(docstring const & align);
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///
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void setHorizontalAlignment(char c, col_type col);
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///
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char horizontalAlignment(col_type col) const;
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///
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docstring horizontalAlignments() const;
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/// 't', 'b', or 'm'
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void setVerticalAlignment(char c);
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///
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char verticalAlignment() const;
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///
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void vcrskip(Length const &, row_type row);
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///
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Length vcrskip(row_type row) const;
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///
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void resize(short int type, col_type cols);
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///
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const RowInfo & rowinfo(row_type row) const;
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/// returns topmost row if passed (-1)
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RowInfo & rowinfo(row_type row);
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///
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const CellInfo & cellinfo(idx_type idx) const { return cellinfo_[idx]; }
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///
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CellInfo & cellinfo(idx_type idx) { return cellinfo_[idx]; }
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/// identifies GridInset
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InsetMathGrid * asGridInset() { return this; }
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/// identifies GridInset
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InsetMathGrid const * asGridInset() const { return this; }
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///
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col_type ncols() const;
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///
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row_type nrows() const;
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///
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col_type col(idx_type idx) const;
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///
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row_type row(idx_type idx) const;
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///
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bool idxUpDown(Cursor &, bool up) const;
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///
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bool idxBackward(Cursor &) const;
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///
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bool idxForward(Cursor &) const;
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///
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bool idxFirst(Cursor &) const;
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///
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bool idxLast(Cursor &) const;
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///
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bool idxDelete(idx_type & idx);
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/// pulls cell after pressing erase
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void idxGlue(idx_type idx);
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/// add a row, one row down
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virtual void addRow(row_type r);
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/// delete a row
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virtual void delRow(row_type r);
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/// copy a row
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virtual void copyRow(row_type r);
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/// swap two rows
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virtual void swapRow(row_type r);
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/// add a column, here
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virtual void addCol(col_type c);
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/// delete a column
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virtual void delCol(col_type c);
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/// copy a column
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virtual void copyCol(col_type c);
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/// swap two columns
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virtual void swapCol(col_type c);
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///
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virtual void appendRow();
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///
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idx_type index(row_type r, col_type c) const;
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///
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bool idxBetween(idx_type idx, idx_type from, idx_type to) const;
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///
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virtual int defaultColSpace(col_type) { return 0; }
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///
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virtual char defaultColAlign(col_type) { return 'c'; }
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///
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void setDefaults();
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///
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virtual int colsep() const;
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///
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virtual int rowsep() const;
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///
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virtual int hlinesep() const;
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///
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virtual int vlinesep() const;
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///
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virtual int border() const;
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///
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void write(WriteStream & os) const;
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///
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void write(WriteStream & os,
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row_type beg_row, col_type beg_col,
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row_type end_row, col_type end_col) const;
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///
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void normalize(NormalStream &) const;
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///
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//void maple(MapleStream &) const;
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///
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void mathmlize(MathStream &) const;
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///
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//void octave(OctaveStream &) const;
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protected:
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///
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void doDispatch(Cursor & cur, FuncRequest & cmd);
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///
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bool getStatus(Cursor & cur, FuncRequest const & cmd,
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FuncStatus & flag) const;
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/// returns x offset of cell compared to inset
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int cellXOffset(BufferView const &, idx_type idx) const;
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/// returns y offset of cell compared to inset
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int cellYOffset(idx_type idx) const;
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/// returns proper 'end of line' code for LaTeX
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virtual docstring eolString(row_type row, bool fragile) const;
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/// returns proper 'end of column' code for LaTeX
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virtual docstring eocString(col_type col, col_type lastcol) const;
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/// splits cells and shifts right part to the next cell
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void splitCell(Cursor & cur);
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/// row info.
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/// rowinfo_[nrows()] is a dummy row used only for hlines.
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std::vector<RowInfo> rowinfo_;
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/// column info.
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/// colinfo_[ncols()] is a dummy column used only for vlines.
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std::vector<ColInfo> colinfo_;
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/// cell info
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std::vector<CellInfo> cellinfo_;
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///
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InsetCode lyxCode() const { return MATH_GRID_CODE; }
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private:
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///
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char v_align_; // add approp. type
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///
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Inset * clone() const;
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};
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} // namespace lyx
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#endif
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