]> git.lyx.org Git - lyx.git/blobdiff - src/mathed/math_gridinset.C
make \newcommand{\bb}[1]{\mathbf{#1}} work for read/write/display.
[lyx.git] / src / mathed / math_gridinset.C
index 5cb230c18ce77ba80d1ba098db818f9141346cb2..d18713b0ec4a754cc2cdaf1acafc775a24ad1969 100644 (file)
 #endif
 
 #include "math_gridinset.h"
-#include "support/LOstream.h"
+#include "math_mathmlstream.h"
+#include "math_streamstr.h"
+#include "lyxfont.h"
+#include "Painter.h"
 #include "debug.h"
 
 
 namespace {
 
 ///
-int const MATH_COLSEP = 10;
+int const COLSEP = 6;
 ///
-int const MATH_ROWSEP = 10;
+int const ROWSEP = 6;
 ///
-int const MATH_BORDER = 2;
+int const HLINESEP = 3;
+///
+int const VLINESEP = 3;
+///
+int const BORDER = 2;
+
+
+string verboseHLine(int n)
+{
+       string res;
+       for (int i = 0; i < n; ++i)
+               res += "\\hline";
+       return res + ' ';
+}
 
 }
 
 
+////////////////////////////////////////////////////////////// 
+
+
 MathGridInset::RowInfo::RowInfo()
-       : upperline_(false), lowerline_(false)
+       : lines_(0), skip_(0)
 {}
 
 
+
+int MathGridInset::RowInfo::skipPixels() const
+{
+#ifdef WITH_WARNINGS
+#warning fix this once the interface to LyXLength has improved
+#endif
+       return int(crskip_.value());
+}
+
+
+
+////////////////////////////////////////////////////////////// 
+
+
 MathGridInset::ColInfo::ColInfo()
-       : h_align_('c'), leftline_(false), rightline_(false)
+       : align_('c'), leftline_(false), rightline_(false), lines_(0)
 {}
 
 
-MathGridInset::MathGridInset(int m, int n, string const & nm)
-       : MathNestInset(m * n, nm), rowinfo_(n), colinfo_(m), v_align_('c')
+////////////////////////////////////////////////////////////// 
+
+
+MathGridInset::MathGridInset(char v, string const & h)
+       : MathNestInset(guessColumns(h)), rowinfo_(2), colinfo_(guessColumns(h) + 1)
+{
+       setDefaults();
+       valign(v);
+       halign(h);
+}
+
+
+MathGridInset::MathGridInset(col_type m, row_type n)
+       : MathNestInset(m * n), rowinfo_(n + 1), colinfo_(m + 1), v_align_('c')
 {
-       if (m <= 0)
-               lyxerr << "positve number of columns expected\n";
-       if (n <= 0)
-               lyxerr << "positve number of rows expected\n";
+       setDefaults();
 }
 
 
-int MathGridInset::index(int row, int col) const
+MathGridInset::MathGridInset(col_type m, row_type n, char v, string const & h)
+       : MathNestInset(m * n), rowinfo_(n + 1), colinfo_(m + 1), v_align_(v)
+{
+       setDefaults();
+       valign(v);
+       halign(h);
+}
+
+
+MathInset * MathGridInset::clone() const
+{
+       return new MathGridInset(*this);
+}
+
+
+MathInset::idx_type MathGridInset::index(row_type row, col_type col) const
 {
        return col + ncols() * row;
 }
 
 
+void MathGridInset::setDefaults()
+{
+       if (ncols() <= 0)
+               lyxerr << "positive number of columns expected\n";
+       if (nrows() <= 0)
+               lyxerr << "positive number of rows expected\n";
+       for (col_type col = 0; col < ncols(); ++col) {
+               colinfo_[col].align_ = defaultColAlign(col);
+               colinfo_[col].skip_  = defaultColSpace(col);
+       }
+}
+
+
 void MathGridInset::halign(string const & hh)
 {
-       int n = hh.size();
+       col_type col = 0;
+       for (string::const_iterator it = hh.begin(); it != hh.end(); ++it) {
+               char c = *it;
+               if (c == '|') {
+                       colinfo_[col].lines_++;
+               } else if (c == 'c' || c == 'l' || c == 'r') {
+                       colinfo_[col].align_ = c;
+                       ++col;
+                       colinfo_[col].lines_ = 0;
+               } else {
+                       lyxerr << "unkown column separator: '" << c << "'\n";
+               }
+       }
+                       
+/*
+       col_type n = hh.size();
        if (n > ncols())
                n = ncols();
-       for (int i = 0; i < n; ++i)
-               colinfo_[i].h_align_ = hh[i];
+       for (col_type col = 0; col < n; ++col)
+               colinfo_[col].align_ = hh[col];
+*/
+}
+
+
+MathGridInset::col_type MathGridInset::guessColumns(string const & hh) const
+{
+       col_type col = 0;
+       for (string::const_iterator it = hh.begin(); it != hh.end(); ++it)
+               if (*it == 'c' || *it == 'l' || *it == 'r')
+                       ++col;
+       return col;
 }
 
-void MathGridInset::halign(char h, int col)
+
+void MathGridInset::halign(char h, col_type col)
 {
-       colinfo_[col].h_align_ = h;
+       colinfo_[col].align_ = h;
 }
 
-char MathGridInset::halign(int col) const
+
+char MathGridInset::halign(col_type col) const
 {
-       return colinfo_[col].h_align_;
+       return colinfo_[col].align_;
 }
 
+
+string MathGridInset::halign() const
+{
+       string res;
+       for (col_type col = 0; col < ncols(); ++col) {
+               res += string(colinfo_[col].lines_, '|');
+               res += colinfo_[col].align_;
+       } 
+       return res + string(colinfo_[ncols()].lines_, '|');
+}
+
+
 void MathGridInset::valign(char c)
 {
        v_align_ = c;
 }
 
+
 char MathGridInset::valign() const
 {
        return v_align_;
 }
 
-void MathGridInset::metrics(MathStyles st) const
+
+MathGridInset::col_type MathGridInset::ncols() const
+{
+       return colinfo_.size() - 1;
+}
+
+
+MathGridInset::row_type MathGridInset::nrows() const
+{
+       return rowinfo_.size() - 1;
+}
+
+
+MathGridInset::col_type MathGridInset::col(idx_type idx) const
+{
+       return idx % ncols();
+}
+
+
+MathGridInset::row_type MathGridInset::row(idx_type idx) const
+{
+       return idx / ncols();
+}
+
+
+void MathGridInset::vcrskip(LyXLength const & crskip, row_type row)
+{
+       rowinfo_[row].crskip_ = crskip;
+}
+
+
+LyXLength MathGridInset::vcrskip(row_type row) const
+{
+       return rowinfo_[row].crskip_;
+}
+
+
+void MathGridInset::metrics(MathMetricsInfo const & mi) const
 {
        // let the cells adjust themselves
-       MathNestInset::metrics(st);
-       size_ = st;
+       MathNestInset::metrics(mi);
 
-       // adjust vertical structure
-       for (int row = 0; row < nrows(); ++row) {
+       // compute absolute sizes of vertical structure
+       for (row_type row = 0; row < nrows(); ++row) {
                int asc  = 0;
                int desc = 0;
-               for (int col = 0; col < ncols(); ++col) {
+               for (col_type col = 0; col < ncols(); ++col) {
                        MathXArray const & c = xcell(index(row, col));
                        asc  = std::max(asc,  c.ascent());
                        desc = std::max(desc, c.descent());
                }
                rowinfo_[row].ascent_  = asc;
                rowinfo_[row].descent_ = desc;
-
-               if (row) 
-                       rowinfo_[row].offset_ = 
-                               rowinfo_[row - 1].offset_ +
-                               rowinfo_[row - 1].descent_ +
-                               MATH_ROWSEP +
-                               rowinfo_[row].ascent_;
-               else 
-                       rowinfo_[row].offset_ = 0;
+       }
+       rowinfo_[0].ascent_       += HLINESEP * rowinfo_[0].lines_;
+       rowinfo_[nrows()].ascent_  = 0;
+       rowinfo_[nrows()].descent_ = 0;
+
+       // compute vertical offsets
+       rowinfo_[0].offset_ = 0;
+       for (row_type row = 1; row <= nrows(); ++row) {
+               rowinfo_[row].offset_  =        
+                       rowinfo_[row - 1].offset_  +
+                       rowinfo_[row - 1].descent_ +
+                       rowinfo_[row - 1].skipPixels() +
+                       ROWSEP +
+                       rowinfo_[row].lines_ * HLINESEP +
+                       rowinfo_[row].ascent_;
        }
 
        // adjust vertical offset
        int h = 0;
        switch (v_align_) {
-       case 't':
-               h = 0;
-               break;
-       case 'b':
-               h = rowinfo_.back().offset_;
-               break;
-       default:
-               h = rowinfo_.back().offset_ / 2;
+               case 't':
+                       h = 0;
+                       break;
+               case 'b':
+                       h = rowinfo_[nrows() - 1].offset_;
+                       break;
+               default:
+                       h = rowinfo_[nrows() - 1].offset_ / 2;
        }
-
-       for (int row = 0; row < nrows(); ++row) {
+       for (row_type row = 0; row <= nrows(); ++row)
                rowinfo_[row].offset_ -= h;
-               rowinfo_[row].offset_ += MATH_BORDER;
-       }
        
-       // adjust horizontal structure
-       for (int col = 0; col < ncols(); ++col) {
-               int wid  = 0;
-               for (int row = 0; row < nrows(); ++row) 
+
+       // compute absolute sizes of horizontal structure
+       for (col_type col = 0; col < ncols(); ++col) {
+               int wid = 0;
+               for (row_type row = 0; row < nrows(); ++row) 
                        wid = std::max(wid, xcell(index(row, col)).width());
-               colinfo_[col].width_  = wid;
-               colinfo_[col].offset_ = colinfo_[col].width_;
+               colinfo_[col].width_ = wid;
+       }
+       colinfo_[ncols()].width_  = 0;
+
+       // compute horizontal offsets
+       colinfo_[0].offset_ = BORDER;
+       for (col_type col = 1; col <= ncols(); ++col) {
+               colinfo_[col].offset_ =
+                       colinfo_[col - 1].offset_ +
+                       colinfo_[col - 1].width_ + 
+                       colinfo_[col - 1].skip_ +
+                       COLSEP + 
+                       colinfo_[col].lines_ * VLINESEP;
+       }
 
-               if (col) 
-                       colinfo_[col].offset_ =
-                               colinfo_[col - 1].offset_ + colinfo_[col - 1].width_ + MATH_COLSEP;
-               else
-                       colinfo_[col].offset_ = 0;
 
-               colinfo_[col].offset_ += MATH_BORDER;
-       }
+       width_   =   colinfo_[ncols() - 1].offset_      
+                      + colinfo_[ncols() - 1].width_
+                 + VLINESEP * colinfo_[ncols()].lines_
+                      + BORDER;
+
+       ascent_  = - rowinfo_[0].offset_          
+                      + rowinfo_[0].ascent_
+                 + HLINESEP * rowinfo_[0].lines_
+                      + BORDER;
+
+       descent_ =   rowinfo_[nrows() - 1].offset_
+                      + rowinfo_[nrows() - 1].descent_
+                 + HLINESEP * rowinfo_[nrows()].lines_
+                      + BORDER;
+
 
-       width_   =   colinfo_.back().offset_  + colinfo_.back().width_;
-       ascent_  = - rowinfo_.front().offset_ + rowinfo_.front().ascent_;
-       descent_ =   rowinfo_.back().offset_  + rowinfo_.back().descent_;
-       
 /*     
        // Increase ws_[i] for 'R' columns (except the first one)
        for (int i = 1; i < nc_; ++i)
-               if (h_align_[i] == 'R')
+               if (align_[i] == 'R')
                        ws_[i] += 10 * df_width;
        // Increase ws_[i] for 'C' column
-       if (h_align_[0] == 'C')
+       if (align_[0] == 'C')
                if (ws_[0] < 7 * workwidth / 8)
                        ws_[0] = 7 * workwidth / 8;
        
        // Adjust local tabs
-       width = MATH_COLSEP;
+       width = COLSEP;
        for (cxrow = row_.begin(); cxrow; ++cxrow) {   
-               int rg = MATH_COLSEP;
+               int rg = COLSEP;
                int lf = 0;
                for (int i = 0; i < nc_; ++i) {
                        bool isvoid = false;
@@ -162,7 +329,7 @@ void MathGridInset::metrics(MathStyles st) const
                                cxrow->setTab(i, df_width);
                                isvoid = true;
                        }
-                       switch (h_align_[i]) {
+                       switch (align_[i]) {
                        case 'l':
                                lf = 0;
                                break;
@@ -184,9 +351,9 @@ void MathGridInset::metrics(MathStyles st) const
                        }
                        int const ww = (isvoid) ? lf : lf + cxrow->getTab(i);
                        cxrow->setTab(i, lf + rg);
-                       rg = ws_[i] - ww + MATH_COLSEP;
+                       rg = ws_[i] - ww + COLSEP;
                        if (cxrow == row_.begin())
-                               width += ws_[i] + MATH_COLSEP;
+                               width += ws_[i] + COLSEP;
                }
                cxrow->setBaseline(cxrow->getBaseline() - ascent);
        }
@@ -196,42 +363,72 @@ void MathGridInset::metrics(MathStyles st) const
 
 void MathGridInset::draw(Painter & pain, int x, int y) const
 {
-       xo(x);
-       yo(y);
-       for (int idx = 0; idx < nargs(); ++idx)
+       for (idx_type idx = 0; idx < nargs(); ++idx)
                xcell(idx).draw(pain, x + cellXOffset(idx), y + cellYOffset(idx));
+
+       for (row_type row = 0; row <= nrows(); ++row)
+               for (int i = 0; i < rowinfo_[row].lines_; ++i) {
+                       int yy = y + rowinfo_[row].offset_ - rowinfo_[row].ascent_
+                               - i * HLINESEP - HLINESEP/2 - ROWSEP/2;
+                       pain.line(x + 1, yy, x + width_ - 1, yy);
+               }
+
+       for (col_type col = 0; col <= ncols(); ++col)
+               for (int i = 0; i < colinfo_[col].lines_; ++i) {
+                       int xx = x + colinfo_[col].offset_
+                               - i * VLINESEP - VLINESEP/2 - COLSEP/2;
+                       pain.line(xx, y - ascent_ + 1, xx, y + descent_ - 1);
+               }
 }
 
 
-void MathGridInset::write(std::ostream & os, bool fragile) const
+string MathGridInset::eolString(row_type row) const
 {
-       for (int row = 0; row < nrows(); ++row) {
-               if (row)
-                       os << " \\\\\n";
-               for (int col = 0; col < ncols(); ++col) {
-                       if (col)
-                               os << " & ";
-                       cell(index(row, col)).write(os, fragile);
-               }
+       string eol;
+
+       if (!rowinfo_[row].crskip_.zero())
+               eol += "[" + rowinfo_[row].crskip_.asLatexString() + "]";
+
+       // make sure an upcoming '[' does not break anything
+       if (row + 1 < nrows()) {
+               MathArray const & c = cell(index(row + 1, 0));
+               if (c.size() && c.front()->getChar() == '[')
+                       eol += "[0pt]";
        }
+
+       // only add \\ if necessary
+       if (eol.empty() && row + 1 == nrows())
+               return string();
+
+       return "\\\\" + eol + '\n';
 }
 
 
-void MathGridInset::addRow(int row)
+string MathGridInset::eocString(col_type col) const
+{
+       if (col + 1 == ncols())
+               return string();
+       return " & ";
+}
+
+
+void MathGridInset::addRow(row_type row)
 {
        rowinfo_.insert(rowinfo_.begin() + row + 1, RowInfo());
        cells_.insert(cells_.begin() + (row + 1) * ncols(), ncols(), MathXArray());
 }
 
+
 void MathGridInset::appendRow()
 {
        rowinfo_.push_back(RowInfo());
-       for (int i = 0; i < ncols(); ++i)
+       //cells_.insert(cells_.end(), ncols(), MathXArray());
+       for (col_type col = 0; col < ncols(); ++col)
                cells_.push_back(cells_type::value_type());
 }
 
 
-void MathGridInset::delRow(int row)
+void MathGridInset::delRow(row_type row)
 {
        if (nrows() == 1)
                return;
@@ -243,29 +440,32 @@ void MathGridInset::delRow(int row)
 }
 
 
-void MathGridInset::addCol(int newcol)
+void MathGridInset::addCol(col_type newcol)
 {
-       int const nc = ncols();
-       int const nr = nrows();
+       const col_type nc = ncols();
+       const row_type nr = nrows();
        cells_type new_cells((nc + 1) * nr);
        
-       for (int row = 0; row < nr; ++row)
-               for (int col = 0; col < nc; ++col)
+       for (row_type row = 0; row < nr; ++row)
+               for (col_type col = 0; col < nc; ++col)
                        new_cells[row * (nc + 1) + col + (col > newcol)]
                                = cells_[row * nc + col];
        std::swap(cells_, new_cells);
 
-       colinfo_.insert(colinfo_.begin() + newcol, ColInfo());
+       ColInfo inf;
+       inf.skip_  = defaultColSpace(newcol);
+       inf.align_ = defaultColAlign(newcol);
+       colinfo_.insert(colinfo_.begin() + newcol, inf);
 }
 
 
-void MathGridInset::delCol(int col)
+void MathGridInset::delCol(col_type col)
 {
        if (ncols() == 1)
                return;
 
        cells_type tmpcells;
-       for (int i = 0; i < nargs(); ++i) 
+       for (col_type i = 0; i < nargs(); ++i) 
                if (i % ncols() != col)
                        tmpcells.push_back(cells_[i]);
        std::swap(cells_, tmpcells);
@@ -274,11 +474,11 @@ void MathGridInset::delCol(int col)
 }
 
 
-int MathGridInset::cellXOffset(int idx) const
+int MathGridInset::cellXOffset(idx_type idx) const
 {
-       int c = col(idx);
+       col_type c = col(idx);
        int x = colinfo_[c].offset_;
-       char align = colinfo_[c].h_align_;
+       char align = colinfo_[c].align_;
        if (align == 'r' || align == 'R')
                x += colinfo_[c].width_ - xcell(idx).width(); 
        if (align == 'c' || align == 'C')
@@ -287,54 +487,53 @@ int MathGridInset::cellXOffset(int idx) const
 }
 
 
-int MathGridInset::cellYOffset(int idx) const
+int MathGridInset::cellYOffset(idx_type idx) const
 {
        return rowinfo_[row(idx)].offset_;
 }
 
-bool MathGridInset::idxUp(int & idx, int & pos) const
+
+bool MathGridInset::idxUp(idx_type & idx) const
 {
        if (idx < ncols())
                return false;
        idx -= ncols();
-       pos = 0;
        return true;
 }
 
        
-bool MathGridInset::idxDown(int & idx, int & pos) const
+bool MathGridInset::idxDown(idx_type & idx) const
 {
        if (idx >= ncols() * (nrows() - 1))
                return false;
        idx += ncols();
-       pos = 0;
        return true;
 }
        
        
-bool MathGridInset::idxLeft(int & idx, int & pos) const
+bool MathGridInset::idxLeft(idx_type & idx, pos_type & pos) const
 {
        // leave matrix if on the left hand edge
        if (col(idx) == 0)
                return false;
-       idx--;
+       --idx;
        pos = cell(idx).size();
        return true;
 }
        
        
-bool MathGridInset::idxRight(int & idx, int & pos) const
+bool MathGridInset::idxRight(idx_type & idx, pos_type & pos) const
 {
        // leave matrix if on the right hand edge
-       if (col(idx) == ncols() - 1)
+       if (col(idx) + 1 == ncols())
                return false;
-       idx++;
+       ++idx;
        pos = 0;
        return true;
 }
 
 
-bool MathGridInset::idxFirst(int & idx, int & pos) const
+bool MathGridInset::idxFirst(idx_type & idx, pos_type & pos) const
 {
        switch (v_align_) {
                case 't':
@@ -344,14 +543,14 @@ bool MathGridInset::idxFirst(int & idx, int & pos) const
                        idx = (nrows() - 1) * ncols();
                        break;
                default: 
-                       idx = (nrows() / 2) * ncols();
+                       idx = ((nrows() - 1) / 2) * ncols();
        }
        pos = 0;
        return true;
 }
 
 
-bool MathGridInset::idxLast(int & idx, int & pos) const
+bool MathGridInset::idxLast(idx_type & idx, pos_type & pos) const
 {
        switch (v_align_) {
                case 't':
@@ -361,41 +560,83 @@ bool MathGridInset::idxLast(int & idx, int & pos) const
                        idx = nargs() - 1;
                        break;
                default:
-                       idx = (nrows() / 2 + 1) * ncols() - 1;
+                       idx = ((nrows() - 1) / 2 + 1) * ncols() - 1;
        }
        pos = cell(idx).size();
        return true;
 }
 
 
-void MathGridInset::idxDelete(int & idx, bool & popit, bool & deleteit)
+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;
 
-       // delete entire row if in first cell of empty row
-       if (col(idx) == 0 && nrows() > 1) {
-               bool deleterow = true;
-               for (int i = idx; i < idx + ncols(); ++i)
-                       if (cell(i).size()) {
-                               deleterow = false;
-                               break;
-                       }
-               if (deleterow) 
-                       delRow(row(idx));
-
-               if (idx >= nargs())
-                       idx = nargs() - 1;
+       // 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 != nargs() - 1
+       //if (idx + 1 != nargs()
        //      cell(idx).swap(cell(idx + 1));
 }
 
 
-void MathGridInset::idxDeleteRange(int /*from*/, int /*to*/)
+void MathGridInset::idxDeleteRange(idx_type /*from*/, idx_type /*to*/)
 {
 // leave this unimplemented unless someone wants to have it.
 /*
@@ -411,27 +652,70 @@ void MathGridInset::idxDeleteRange(int /*from*/, int /*to*/)
 }
 
 
-MathGridInset::RowInfo const & MathGridInset::rowinfo(int i) const
+MathGridInset::RowInfo const & MathGridInset::rowinfo(row_type row) const
 {
-       return rowinfo_[i];
+       return rowinfo_[row];
 }
 
 
-MathGridInset::RowInfo & MathGridInset::rowinfo(int i)
+MathGridInset::RowInfo & MathGridInset::rowinfo(row_type row)
 {
-       return rowinfo_[i];
+       return rowinfo_[row];
 }
 
 
-std::vector<int> MathGridInset::idxBetween(int from, int to) const
+std::vector<MathInset::idx_type>
+       MathGridInset::idxBetween(idx_type from, idx_type to) const
 {
-       int r1 = std::min(row(from), row(to));
-       int r2 = std::max(row(from), row(to));
-       int c1 = std::min(col(from), col(to));
-       int c2 = std::max(col(from), col(to));
-       std::vector<int> res;
-       for (int i = r1; i <= r2; ++i)
-               for (int j = c1; j <= c2; ++j)
+       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;
+}
+