mirror of
https://git.lyx.org/repos/lyx.git
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c0fc732905
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@3218 a592a061-630c-0410-9148-cb99ea01b6c8
722 lines
14 KiB
C
722 lines
14 KiB
C
#ifdef __GNUG__
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#pragma implementation
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#endif
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#include "math_gridinset.h"
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#include "math_mathmlstream.h"
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#include "math_streamstr.h"
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#include "lyxfont.h"
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#include "Painter.h"
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#include "debug.h"
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namespace {
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///
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int const COLSEP = 6;
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///
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int const ROWSEP = 6;
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///
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int const HLINESEP = 3;
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///
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int const VLINESEP = 3;
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///
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int const BORDER = 2;
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string verboseHLine(int n)
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{
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string res;
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for (int i = 0; i < n; ++i)
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res += "\\hline";
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return res + ' ';
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}
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}
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//////////////////////////////////////////////////////////////
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MathGridInset::RowInfo::RowInfo()
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: lines_(0), skip_(0)
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{}
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int MathGridInset::RowInfo::skipPixels() const
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{
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#ifdef WITH_WARNINGS
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#warning fix this once the interface to LyXLength has improved
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#endif
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return int(crskip_.value());
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}
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//////////////////////////////////////////////////////////////
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MathGridInset::ColInfo::ColInfo()
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: align_('c'), leftline_(false), rightline_(false), lines_(0)
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{}
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//////////////////////////////////////////////////////////////
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MathGridInset::MathGridInset(char v, string const & h)
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: MathNestInset(guessColumns(h)), rowinfo_(2), colinfo_(guessColumns(h) + 1)
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{
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setDefaults();
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valign(v);
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halign(h);
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}
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MathGridInset::MathGridInset(col_type m, row_type n)
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: MathNestInset(m * n), rowinfo_(n + 1), colinfo_(m + 1), v_align_('c')
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{
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setDefaults();
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}
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MathGridInset::MathGridInset(col_type m, row_type n, char v, string const & h)
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: MathNestInset(m * n), rowinfo_(n + 1), colinfo_(m + 1), v_align_(v)
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{
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setDefaults();
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valign(v);
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halign(h);
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}
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MathInset * MathGridInset::clone() const
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{
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return new MathGridInset(*this);
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}
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MathInset::idx_type MathGridInset::index(row_type row, col_type col) const
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{
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return col + ncols() * row;
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}
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void MathGridInset::setDefaults()
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{
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if (ncols() <= 0)
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lyxerr << "positive number of columns expected\n";
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if (nrows() <= 0)
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lyxerr << "positive number of rows expected\n";
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for (col_type col = 0; col < ncols(); ++col) {
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colinfo_[col].align_ = defaultColAlign(col);
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colinfo_[col].skip_ = defaultColSpace(col);
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}
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}
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void MathGridInset::halign(string const & hh)
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{
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col_type col = 0;
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for (string::const_iterator it = hh.begin(); it != hh.end(); ++it) {
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char c = *it;
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if (c == '|') {
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colinfo_[col].lines_++;
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} else if (c == 'c' || c == 'l' || c == 'r') {
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colinfo_[col].align_ = c;
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++col;
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colinfo_[col].lines_ = 0;
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} else {
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lyxerr << "unkown column separator: '" << c << "'\n";
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}
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}
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/*
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col_type n = hh.size();
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if (n > ncols())
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n = ncols();
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for (col_type col = 0; col < n; ++col)
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colinfo_[col].align_ = hh[col];
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*/
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}
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MathGridInset::col_type MathGridInset::guessColumns(string const & hh) const
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{
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col_type col = 0;
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for (string::const_iterator it = hh.begin(); it != hh.end(); ++it)
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if (*it == 'c' || *it == 'l' || *it == 'r')
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++col;
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return col;
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}
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void MathGridInset::halign(char h, col_type col)
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{
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colinfo_[col].align_ = h;
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}
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char MathGridInset::halign(col_type col) const
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{
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return colinfo_[col].align_;
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}
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string MathGridInset::halign() const
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{
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string res;
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for (col_type col = 0; col < ncols(); ++col) {
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res += string(colinfo_[col].lines_, '|');
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res += colinfo_[col].align_;
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}
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return res + string(colinfo_[ncols()].lines_, '|');
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}
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void MathGridInset::valign(char c)
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{
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v_align_ = c;
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}
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char MathGridInset::valign() const
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{
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return v_align_;
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}
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MathGridInset::col_type MathGridInset::ncols() const
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{
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return colinfo_.size() - 1;
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}
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MathGridInset::row_type MathGridInset::nrows() const
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{
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return rowinfo_.size() - 1;
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}
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MathGridInset::col_type MathGridInset::col(idx_type idx) const
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{
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return idx % ncols();
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}
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MathGridInset::row_type MathGridInset::row(idx_type idx) const
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{
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return idx / ncols();
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}
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void MathGridInset::vcrskip(LyXLength const & crskip, row_type row)
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{
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rowinfo_[row].crskip_ = crskip;
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}
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LyXLength MathGridInset::vcrskip(row_type row) const
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{
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return rowinfo_[row].crskip_;
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}
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void MathGridInset::metrics(MathMetricsInfo const & mi) const
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{
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// let the cells adjust themselves
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MathNestInset::metrics(mi);
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// compute absolute sizes of vertical structure
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for (row_type row = 0; row < nrows(); ++row) {
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int asc = 0;
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int desc = 0;
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for (col_type col = 0; col < ncols(); ++col) {
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MathXArray const & c = xcell(index(row, col));
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asc = std::max(asc, c.ascent());
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desc = std::max(desc, c.descent());
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}
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rowinfo_[row].ascent_ = asc;
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rowinfo_[row].descent_ = desc;
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}
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rowinfo_[0].ascent_ += HLINESEP * rowinfo_[0].lines_;
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rowinfo_[nrows()].ascent_ = 0;
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rowinfo_[nrows()].descent_ = 0;
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// compute vertical offsets
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rowinfo_[0].offset_ = 0;
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for (row_type row = 1; row <= nrows(); ++row) {
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rowinfo_[row].offset_ =
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rowinfo_[row - 1].offset_ +
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rowinfo_[row - 1].descent_ +
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rowinfo_[row - 1].skipPixels() +
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ROWSEP +
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rowinfo_[row].lines_ * HLINESEP +
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rowinfo_[row].ascent_;
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}
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// adjust vertical offset
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int h = 0;
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switch (v_align_) {
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case 't':
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h = 0;
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break;
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case 'b':
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h = rowinfo_[nrows() - 1].offset_;
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break;
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default:
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h = rowinfo_[nrows() - 1].offset_ / 2;
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}
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for (row_type row = 0; row <= nrows(); ++row)
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rowinfo_[row].offset_ -= h;
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// compute absolute sizes of horizontal structure
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for (col_type col = 0; col < ncols(); ++col) {
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int wid = 0;
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for (row_type row = 0; row < nrows(); ++row)
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wid = std::max(wid, xcell(index(row, col)).width());
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colinfo_[col].width_ = wid;
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}
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colinfo_[ncols()].width_ = 0;
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// compute horizontal offsets
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colinfo_[0].offset_ = BORDER;
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for (col_type col = 1; col <= ncols(); ++col) {
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colinfo_[col].offset_ =
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colinfo_[col - 1].offset_ +
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colinfo_[col - 1].width_ +
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colinfo_[col - 1].skip_ +
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COLSEP +
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colinfo_[col].lines_ * VLINESEP;
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}
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width_ = colinfo_[ncols() - 1].offset_
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+ colinfo_[ncols() - 1].width_
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+ VLINESEP * colinfo_[ncols()].lines_
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+ BORDER;
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ascent_ = - rowinfo_[0].offset_
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+ rowinfo_[0].ascent_
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+ HLINESEP * rowinfo_[0].lines_
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+ BORDER;
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descent_ = rowinfo_[nrows() - 1].offset_
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+ rowinfo_[nrows() - 1].descent_
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+ HLINESEP * rowinfo_[nrows()].lines_
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+ BORDER;
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/*
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// Increase ws_[i] for 'R' columns (except the first one)
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for (int i = 1; i < nc_; ++i)
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if (align_[i] == 'R')
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ws_[i] += 10 * df_width;
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// Increase ws_[i] for 'C' column
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if (align_[0] == 'C')
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if (ws_[0] < 7 * workwidth / 8)
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ws_[0] = 7 * workwidth / 8;
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// Adjust local tabs
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width = COLSEP;
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for (cxrow = row_.begin(); cxrow; ++cxrow) {
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int rg = COLSEP;
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int lf = 0;
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for (int i = 0; i < nc_; ++i) {
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bool isvoid = false;
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if (cxrow->getTab(i) <= 0) {
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cxrow->setTab(i, df_width);
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isvoid = true;
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}
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switch (align_[i]) {
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case 'l':
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lf = 0;
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break;
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case 'c':
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lf = (ws_[i] - cxrow->getTab(i))/2;
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break;
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case 'r':
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case 'R':
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lf = ws_[i] - cxrow->getTab(i);
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break;
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case 'C':
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if (cxrow == row_.begin())
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lf = 0;
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else if (cxrow.is_last())
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lf = ws_[i] - cxrow->getTab(i);
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else
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lf = (ws_[i] - cxrow->getTab(i))/2;
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break;
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}
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int const ww = (isvoid) ? lf : lf + cxrow->getTab(i);
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cxrow->setTab(i, lf + rg);
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rg = ws_[i] - ww + COLSEP;
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if (cxrow == row_.begin())
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width += ws_[i] + COLSEP;
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}
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cxrow->setBaseline(cxrow->getBaseline() - ascent);
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}
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*/
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}
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void MathGridInset::draw(Painter & pain, int x, int y) const
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{
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for (idx_type idx = 0; idx < nargs(); ++idx)
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xcell(idx).draw(pain, x + cellXOffset(idx), y + cellYOffset(idx));
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for (row_type row = 0; row <= nrows(); ++row)
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for (int i = 0; i < rowinfo_[row].lines_; ++i) {
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int yy = y + rowinfo_[row].offset_ - rowinfo_[row].ascent_
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- i * HLINESEP - HLINESEP/2 - ROWSEP/2;
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pain.line(x + 1, yy, x + width_ - 1, yy);
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}
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for (col_type col = 0; col <= ncols(); ++col)
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for (int i = 0; i < colinfo_[col].lines_; ++i) {
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int xx = x + colinfo_[col].offset_
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- i * VLINESEP - VLINESEP/2 - COLSEP/2;
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pain.line(xx, y - ascent_ + 1, xx, y + descent_ - 1);
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}
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}
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string MathGridInset::eolString(row_type row) const
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{
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string eol;
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if (!rowinfo_[row].crskip_.zero())
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eol += "[" + rowinfo_[row].crskip_.asLatexString() + "]";
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// make sure an upcoming '[' does not break anything
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if (row + 1 < nrows()) {
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MathArray const & c = cell(index(row + 1, 0));
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if (c.size() && c.front()->getChar() == '[')
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eol += "[0pt]";
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}
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// only add \\ if necessary
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if (eol.empty() && row + 1 == nrows())
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return string();
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return "\\\\" + eol + '\n';
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}
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string MathGridInset::eocString(col_type col) const
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{
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if (col + 1 == ncols())
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return string();
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return " & ";
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}
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void MathGridInset::addRow(row_type row)
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{
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rowinfo_.insert(rowinfo_.begin() + row + 1, RowInfo());
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cells_.insert(cells_.begin() + (row + 1) * ncols(), ncols(), MathXArray());
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}
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void MathGridInset::appendRow()
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{
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rowinfo_.push_back(RowInfo());
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//cells_.insert(cells_.end(), ncols(), MathXArray());
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for (col_type col = 0; col < ncols(); ++col)
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cells_.push_back(cells_type::value_type());
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}
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void MathGridInset::delRow(row_type row)
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{
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if (nrows() == 1)
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return;
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cells_type::iterator it = cells_.begin() + row * ncols();
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cells_.erase(it, it + ncols());
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rowinfo_.erase(rowinfo_.begin() + row);
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}
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void MathGridInset::addCol(col_type newcol)
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{
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const col_type nc = ncols();
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const row_type nr = nrows();
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cells_type new_cells((nc + 1) * nr);
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for (row_type row = 0; row < nr; ++row)
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for (col_type col = 0; col < nc; ++col)
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new_cells[row * (nc + 1) + col + (col > newcol)]
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= cells_[row * nc + col];
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std::swap(cells_, new_cells);
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ColInfo inf;
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inf.skip_ = defaultColSpace(newcol);
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inf.align_ = defaultColAlign(newcol);
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colinfo_.insert(colinfo_.begin() + newcol, inf);
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}
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void MathGridInset::delCol(col_type col)
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{
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if (ncols() == 1)
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return;
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cells_type tmpcells;
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for (col_type i = 0; i < nargs(); ++i)
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if (i % ncols() != col)
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tmpcells.push_back(cells_[i]);
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std::swap(cells_, tmpcells);
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colinfo_.erase(colinfo_.begin() + col);
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}
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int MathGridInset::cellXOffset(idx_type idx) const
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{
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col_type c = col(idx);
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int x = colinfo_[c].offset_;
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char align = colinfo_[c].align_;
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if (align == 'r' || align == 'R')
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x += colinfo_[c].width_ - xcell(idx).width();
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if (align == 'c' || align == 'C')
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x += (colinfo_[c].width_ - xcell(idx).width()) / 2;
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return x;
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}
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int MathGridInset::cellYOffset(idx_type idx) const
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{
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return rowinfo_[row(idx)].offset_;
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}
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bool MathGridInset::idxUp(idx_type & idx) const
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{
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if (idx < ncols())
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return false;
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idx -= ncols();
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return true;
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}
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bool MathGridInset::idxDown(idx_type & idx) const
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{
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if (idx >= ncols() * (nrows() - 1))
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return false;
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idx += ncols();
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return true;
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}
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bool MathGridInset::idxLeft(idx_type & idx, pos_type & pos) const
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{
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// leave matrix if on the left hand edge
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if (col(idx) == 0)
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return false;
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--idx;
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pos = cell(idx).size();
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return true;
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}
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bool MathGridInset::idxRight(idx_type & idx, pos_type & pos) const
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{
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// leave matrix if on the right hand edge
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if (col(idx) + 1 == ncols())
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return false;
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++idx;
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pos = 0;
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return true;
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}
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bool MathGridInset::idxFirst(idx_type & idx, pos_type & pos) const
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{
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switch (v_align_) {
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case 't':
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idx = 0;
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break;
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case 'b':
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idx = (nrows() - 1) * ncols();
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break;
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default:
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idx = ((nrows() - 1) / 2) * ncols();
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}
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pos = 0;
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return true;
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}
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bool MathGridInset::idxLast(idx_type & idx, pos_type & pos) const
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{
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switch (v_align_) {
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case 't':
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idx = ncols() - 1;
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break;
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case 'b':
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idx = nargs() - 1;
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break;
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default:
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idx = ((nrows() - 1) / 2 + 1) * ncols() - 1;
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}
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pos = cell(idx).size();
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return true;
|
|
}
|
|
|
|
|
|
bool MathGridInset::idxHome(idx_type & idx, pos_type & pos) const
|
|
{
|
|
if (pos > 0) {
|
|
pos = 0;
|
|
return true;
|
|
}
|
|
if (col(idx) > 0) {
|
|
idx -= idx % ncols();
|
|
pos = 0;
|
|
return true;
|
|
}
|
|
if (idx > 0) {
|
|
idx = 0;
|
|
pos = 0;
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
|
|
bool MathGridInset::idxEnd(idx_type & idx, pos_type & pos) const
|
|
{
|
|
if (pos < cell(idx).size()) {
|
|
pos = cell(idx).size();
|
|
return true;
|
|
}
|
|
if (col(idx) < ncols() - 1) {
|
|
idx = idx - idx % ncols() + ncols() - 1;
|
|
pos = cell(idx).size();
|
|
return true;
|
|
}
|
|
if (idx < nargs() - 1) {
|
|
idx = nargs() - 1;
|
|
pos = cell(idx).size();
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
|
|
void MathGridInset::idxDelete(idx_type & idx, bool & popit, bool & deleteit)
|
|
{
|
|
popit = false;
|
|
deleteit = false;
|
|
|
|
// nothing to do if we are in the last row of the inset
|
|
if (row(idx) + 1 == nrows())
|
|
return;
|
|
|
|
// try to delete entire sequence of ncols() empty cells if possible
|
|
for (idx_type i = idx; i < idx + ncols(); ++i)
|
|
if (cell(i).size())
|
|
return;
|
|
|
|
// move cells if necessary
|
|
for (idx_type i = index(row(idx), 0); i < idx; ++i)
|
|
cell(i).swap(cell(i + ncols()));
|
|
|
|
delRow(row(idx));
|
|
|
|
if (idx >= nargs())
|
|
idx = nargs() - 1;
|
|
|
|
// undo effect of Ctrl-Tab (i.e. pull next cell)
|
|
//if (idx + 1 != nargs())
|
|
// cell(idx).swap(cell(idx + 1));
|
|
}
|
|
|
|
|
|
void MathGridInset::idxDeleteRange(idx_type /*from*/, idx_type /*to*/)
|
|
{
|
|
// leave this unimplemented unless someone wants to have it.
|
|
/*
|
|
int n = (to - from) / ncols();
|
|
int r = from / ncols();
|
|
|
|
if (n >= 1) {
|
|
cells_type::iterator it = cells_.begin() + from;
|
|
cells_.erase(it, it + n * ncols());
|
|
rowinfo_.erase(rowinfo_.begin() + r, rowinfo_.begin() + r + n);
|
|
}
|
|
*/
|
|
}
|
|
|
|
|
|
MathGridInset::RowInfo const & MathGridInset::rowinfo(row_type row) const
|
|
{
|
|
return rowinfo_[row];
|
|
}
|
|
|
|
|
|
MathGridInset::RowInfo & MathGridInset::rowinfo(row_type row)
|
|
{
|
|
return rowinfo_[row];
|
|
}
|
|
|
|
|
|
std::vector<MathInset::idx_type>
|
|
MathGridInset::idxBetween(idx_type from, idx_type to) const
|
|
{
|
|
row_type r1 = std::min(row(from), row(to));
|
|
row_type r2 = std::max(row(from), row(to));
|
|
col_type c1 = std::min(col(from), col(to));
|
|
col_type c2 = std::max(col(from), col(to));
|
|
std::vector<idx_type> res;
|
|
for (row_type i = r1; i <= r2; ++i)
|
|
for (col_type j = c1; j <= c2; ++j)
|
|
res.push_back(index(i, j));
|
|
return res;
|
|
}
|
|
|
|
|
|
|
|
void MathGridInset::normalize(NormalStream & os) const
|
|
{
|
|
os << "[grid ";
|
|
for (row_type row = 0; row < nrows(); ++row) {
|
|
os << "[row ";
|
|
for (col_type col = 0; col < ncols(); ++col)
|
|
os << "[cell " << cell(index(row, col)) << ']';
|
|
os << ']';
|
|
}
|
|
os << ']';
|
|
}
|
|
|
|
|
|
void MathGridInset::mathmlize(MathMLStream & os) const
|
|
{
|
|
os << MTag("mtable");
|
|
for (row_type row = 0; row < nrows(); ++row) {
|
|
os << MTag("mtr");
|
|
for (col_type col = 0; col < ncols(); ++col)
|
|
os << cell(index(row, col));
|
|
os << ETag("mtr");
|
|
}
|
|
os << ETag("mtable");
|
|
}
|
|
|
|
|
|
void MathGridInset::write(WriteStream & os) const
|
|
{
|
|
for (row_type row = 0; row < nrows(); ++row) {
|
|
os << verboseHLine(rowinfo_[row].lines_);
|
|
for (col_type col = 0; col < ncols(); ++col)
|
|
os << cell(index(row, col)) << eocString(col);
|
|
os << eolString(row);
|
|
}
|
|
string const s = verboseHLine(rowinfo_[nrows()].lines_);
|
|
if (!s.empty())
|
|
os << "\\\\" << s;
|
|
}
|
|
|