]> git.lyx.org Git - features.git/blobdiff - src/mathed/math_gridinset.C
change "support/std_sstream.h" to <sstream>
[features.git] / src / mathed / math_gridinset.C
index 2829a14be846bbf86c18ec4cfa21da6a8574f9ce..07325ab759e092b8b6ec9002c1f97a227476ef7c 100644 (file)
@@ -1,21 +1,76 @@
-#ifdef __GNUG__
-#pragma implementation
-#endif
+/**
+ * \file math_gridinset.C
+ * This file is part of LyX, the document processor.
+ * Licence details can be found in the file COPYING.
+ *
+ * \author André Pönitz
+ *
+ * Full author contact details are available in file CREDITS.
+ */
+
+#include <config.h>
 
 #include "math_gridinset.h"
+#include "math_data.h"
 #include "math_mathmlstream.h"
 #include "math_streamstr.h"
-#include "lyxfont.h"
-#include "Painter.h"
+
+#include "BufferView.h"
+#include "CutAndPaste.h"
+#include "FuncStatus.h"
+#include "LColor.h"
+#include "cursor.h"
 #include "debug.h"
+#include "funcrequest.h"
+#include "undo.h"
 
+#include "frontends/Painter.h"
 
-using std::swap;
+#include "insets/mailinset.h"
+
+#include <sstream>
+
+using std::endl;
 using std::max;
 using std::min;
+using std::swap;
+
+using std::string;
+using std::auto_ptr;
+using std::istream;
+using std::istringstream;
+using std::ostringstream;
 using std::vector;
 
 
+class GridInsetMailer : public MailInset {
+public:
+       GridInsetMailer(MathGridInset & inset) : inset_(inset) {}
+       ///
+       virtual string const & name() const
+       {
+               static string const theName = "tabular";
+               return theName;
+       }
+       ///
+       virtual string const inset2string(Buffer const &) const
+       {
+               ostringstream data;
+               //data << name() << " active_cell " << inset.getActCell() << '\n';
+               data << name() << " active_cell " << 0 << '\n';
+               WriteStream ws(data);
+               inset_.write(ws);
+               return data.str();
+       }
+
+protected:
+       InsetBase & inset() const { return inset_; }
+       MathGridInset & inset_;
+};
+
+
+void mathed_parse_normal(MathGridInset &, string const & argument);
+
 namespace {
 
 string verboseHLine(int n)
@@ -23,13 +78,33 @@ string verboseHLine(int n)
        string res;
        for (int i = 0; i < n; ++i)
                res += "\\hline";
-       return res + ' ';
+       if (n)
+               res += ' ';
+       return res;
+}
+
+
+int extractInt(istream & is)
+{
+       int num = 1;
+       is >> num;
+       return (num == 0) ? 1 : num;
 }
 
 }
 
 
-////////////////////////////////////////////////////////////// 
+//////////////////////////////////////////////////////////////
+
+
+MathGridInset::CellInfo::CellInfo()
+       : dummy_(false)
+{}
+
+
+
+
+//////////////////////////////////////////////////////////////
 
 
 MathGridInset::RowInfo::RowInfo()
@@ -40,15 +115,12 @@ MathGridInset::RowInfo::RowInfo()
 
 int MathGridInset::RowInfo::skipPixels() const
 {
-#ifdef WITH_WARNINGS
-#warning fix this once the interface to LyXLength has improved
-#endif
-       return int(crskip_.value());
+       return crskip_.inBP();
 }
 
 
 
-////////////////////////////////////////////////////////////// 
+//////////////////////////////////////////////////////////////
 
 
 MathGridInset::ColInfo::ColInfo()
@@ -56,37 +128,67 @@ MathGridInset::ColInfo::ColInfo()
 {}
 
 
-////////////////////////////////////////////////////////////// 
+//////////////////////////////////////////////////////////////
 
 
 MathGridInset::MathGridInset(char v, string const & h)
-       : MathNestInset(guessColumns(h)), rowinfo_(2), colinfo_(guessColumns(h) + 1)
+       : MathNestInset(guessColumns(h)),
+         rowinfo_(2),
+         colinfo_(guessColumns(h) + 1),
+         cellinfo_(1 * guessColumns(h))
 {
        setDefaults();
-       valign(v);
+       valign(v);
        halign(h);
+       //lyxerr << "created grid with " << ncols() << " columns" << endl;
+}
+
+
+MathGridInset::MathGridInset()
+       : MathNestInset(1),
+         rowinfo_(1 + 1),
+               colinfo_(1 + 1),
+               cellinfo_(1),
+               v_align_('c')
+{
+       setDefaults();
 }
 
 
 MathGridInset::MathGridInset(col_type m, row_type n)
-       : MathNestInset(m * n), rowinfo_(n + 1), colinfo_(m + 1), v_align_('c')
+       : MathNestInset(m * n),
+         rowinfo_(n + 1),
+               colinfo_(m + 1),
+               cellinfo_(m * n),
+               v_align_('c')
 {
        setDefaults();
 }
 
 
 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)
+       : MathNestInset(m * n),
+         rowinfo_(n + 1),
+         colinfo_(m + 1),
+               cellinfo_(m * n),
+               v_align_(v)
 {
        setDefaults();
-       valign(v);
+       valign(v);
        halign(h);
 }
 
 
-MathInset * MathGridInset::clone() const
+MathGridInset::~MathGridInset()
+{
+       GridInsetMailer mailer(*this);
+       mailer.hideDialog();
+}
+
+
+auto_ptr<InsetBase> MathGridInset::clone() const
 {
-       return new MathGridInset(*this);
+       return auto_ptr<InsetBase>(new MathGridInset(*this));
 }
 
 
@@ -99,9 +201,9 @@ MathInset::idx_type MathGridInset::index(row_type row, col_type col) const
 void MathGridInset::setDefaults()
 {
        if (ncols() <= 0)
-               lyxerr << "positive number of columns expected\n";
-       if (nrows() <= 0)
-               lyxerr << "positive number of rows expected\n";
+               lyxerr << "positive number of columns expected" << endl;
+       //if (nrows() <= 0)
+       //      lyxerr << "positive number of rows expected" << endl;
        for (col_type col = 0; col < ncols(); ++col) {
                colinfo_[col].align_ = defaultColAlign(col);
                colinfo_[col].skip_  = defaultColSpace(col);
@@ -113,6 +215,8 @@ void MathGridInset::halign(string const & hh)
 {
        col_type col = 0;
        for (string::const_iterator it = hh.begin(); it != hh.end(); ++it) {
+               if (col >= ncols())
+                       break;
                char c = *it;
                if (c == '|') {
                        colinfo_[col].lines_++;
@@ -121,10 +225,10 @@ void MathGridInset::halign(string const & hh)
                        ++col;
                        colinfo_[col].lines_ = 0;
                } else {
-                       lyxerr << "unkown column separator: '" << c << "'\n";
+                       lyxerr << "unknown column separator: '" << c << "'" << endl;
                }
        }
-                       
+
 /*
        col_type n = hh.size();
        if (n > ncols())
@@ -141,6 +245,10 @@ MathGridInset::col_type MathGridInset::guessColumns(string const & hh) const
        for (string::const_iterator it = hh.begin(); it != hh.end(); ++it)
                if (*it == 'c' || *it == 'l' || *it == 'r')
                        ++col;
+       // let's have at least one column, even if we did not recognize its
+       // alignment
+       if (col == 0)
+               col = 1;
        return col;
 }
 
@@ -163,7 +271,7 @@ string MathGridInset::halign() const
        for (col_type col = 0; col < ncols(); ++col) {
                res += string(colinfo_[col].lines_, '|');
                res += colinfo_[col].align_;
-       } 
+       }
        return res + string(colinfo_[ncols()].lines_, '|');
 }
 
@@ -216,7 +324,7 @@ LyXLength MathGridInset::vcrskip(row_type row) const
 }
 
 
-void MathGridInset::metrics(MathMetricsInfo const & mi) const
+void MathGridInset::metrics(MetricsInfo & mi) const
 {
        // let the cells adjust themselves
        MathNestInset::metrics(mi);
@@ -226,7 +334,7 @@ void MathGridInset::metrics(MathMetricsInfo const & mi) const
                int asc  = 0;
                int desc = 0;
                for (col_type col = 0; col < ncols(); ++col) {
-                       MathXArray const & c = xcell(index(row, col));
+                       MathArray const & c = cell(index(row, col));
                        asc  = max(asc,  c.ascent());
                        desc = max(desc, c.descent());
                }
@@ -240,7 +348,7 @@ void MathGridInset::metrics(MathMetricsInfo const & mi) const
        // compute vertical offsets
        rowinfo_[0].offset_ = 0;
        for (row_type row = 1; row <= nrows(); ++row) {
-               rowinfo_[row].offset_  =        
+               rowinfo_[row].offset_  =
                        rowinfo_[row - 1].offset_  +
                        rowinfo_[row - 1].descent_ +
                        rowinfo_[row - 1].skipPixels() +
@@ -263,13 +371,13 @@ void MathGridInset::metrics(MathMetricsInfo const & mi) const
        }
        for (row_type row = 0; row <= nrows(); ++row)
                rowinfo_[row].offset_ -= h;
-       
+
 
        // 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 = max(wid, xcell(index(row, col)).width());
+               for (row_type row = 0; row < nrows(); ++row)
+                       wid = max(wid, cell(index(row, col)).width());
                colinfo_[col].width_ = wid;
        }
        colinfo_[ncols()].width_  = 0;
@@ -279,30 +387,30 @@ void MathGridInset::metrics(MathMetricsInfo const & mi) const
        for (col_type col = 1; col <= ncols(); ++col) {
                colinfo_[col].offset_ =
                        colinfo_[col - 1].offset_ +
-                       colinfo_[col - 1].width_ + 
+                       colinfo_[col - 1].width_ +
                        colinfo_[col - 1].skip_ +
-                       colsep() + 
+                       colsep() +
                        colinfo_[col].lines_ * vlinesep();
        }
 
 
-       width_   =   colinfo_[ncols() - 1].offset_      
-                      + colinfo_[ncols() - 1].width_
-                 + vlinesep() * colinfo_[ncols()].lines_
-                      + border();
+       dim_.wid   =   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();
+       dim_.asc  = - 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();
+       dim_.des =   rowinfo_[nrows() - 1].offset_
+                      + rowinfo_[nrows() - 1].descent_
+                + hlinesep() * rowinfo_[nrows()].lines_
+                      + border();
 
 
-/*     
+/*
        // Increase ws_[i] for 'R' columns (except the first one)
        for (int i = 1; i < nc_; ++i)
                if (align_[i] == 'R')
@@ -311,10 +419,10 @@ void MathGridInset::metrics(MathMetricsInfo const & mi) const
        if (align_[0] == 'C')
                if (ws_[0] < 7 * workwidth / 8)
                        ws_[0] = 7 * workwidth / 8;
-       
+
        // Adjust local tabs
        width = colsep();
-       for (cxrow = row_.begin(); cxrow; ++cxrow) {   
+       for (cxrow = row_.begin(); cxrow; ++cxrow) {
                int rg = COLSEP;
                int lf = 0;
                for (int i = 0; i < nc_; ++i) {
@@ -328,7 +436,7 @@ void MathGridInset::metrics(MathMetricsInfo const & mi) const
                                lf = 0;
                                break;
                        case 'c':
-                               lf = (ws_[i] - cxrow->getTab(i))/2; 
+                               lf = (ws_[i] - cxrow->getTab(i))/2;
                                break;
                        case 'r':
                        case 'R':
@@ -340,7 +448,7 @@ void MathGridInset::metrics(MathMetricsInfo const & mi) const
                                else if (cxrow.is_last())
                                        lf = ws_[i] - cxrow->getTab(i);
                                else
-                                       lf = (ws_[i] - cxrow->getTab(i))/2; 
+                                       lf = (ws_[i] - cxrow->getTab(i))/2;
                                break;
                        }
                        int const ww = (isvoid) ? lf : lf + cxrow->getTab(i);
@@ -352,43 +460,56 @@ void MathGridInset::metrics(MathMetricsInfo const & mi) const
                cxrow->setBaseline(cxrow->getBaseline() - ascent);
        }
 */
+       metricsMarkers2(dim_);
+}
+
+
+void MathGridInset::metrics(MetricsInfo & mi, Dimension & dim) const
+{
+       metrics(mi);
+       dim = dim_;
 }
 
 
-void MathGridInset::draw(Painter & pain, int x, int y) const
+void MathGridInset::draw(PainterInfo & pi, int x, int y) const
 {
        for (idx_type idx = 0; idx < nargs(); ++idx)
-               xcell(idx).draw(pain, x + cellXOffset(idx), y + cellYOffset(idx));
+               cell(idx).draw(pi, 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);
+                       pi.pain.line(x + 1, yy,
+                                    x + dim_.width() - 1, yy,
+                                    LColor::foreground);
                }
 
        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);
+                       pi.pain.line(xx, y - dim_.ascent() + 1,
+                                    xx, y + dim_.descent() - 1,
+                                    LColor::foreground);
                }
+       drawMarkers2(pi, x, y);
 }
 
 
-void MathGridInset::metricsT(TextMetricsInfo const & mi) const
+void MathGridInset::metricsT(TextMetricsInfo const & mi, Dimension & dim) const
 {
        // let the cells adjust themselves
        //MathNestInset::metrics(mi);
-       for (idx_type i = 0; i < nargs(); ++i) 
-               xcell(i).metricsT(mi);
+       for (idx_type i = 0; i < nargs(); ++i)
+               cell(i).metricsT(mi, dim);
 
        // compute absolute sizes of vertical structure
        for (row_type row = 0; row < nrows(); ++row) {
                int asc  = 0;
                int desc = 0;
                for (col_type col = 0; col < ncols(); ++col) {
-                       MathXArray const & c = xcell(index(row, col));
+                       MathArray const & c = cell(index(row, col));
                        asc  = max(asc,  c.ascent());
                        desc = max(desc, c.descent());
                }
@@ -402,7 +523,7 @@ void MathGridInset::metricsT(TextMetricsInfo const & mi) const
        // compute vertical offsets
        rowinfo_[0].offset_ = 0;
        for (row_type row = 1; row <= nrows(); ++row) {
-               rowinfo_[row].offset_  =        
+               rowinfo_[row].offset_  =
                        rowinfo_[row - 1].offset_  +
                        rowinfo_[row - 1].descent_ +
                        //rowinfo_[row - 1].skipPixels() +
@@ -425,13 +546,13 @@ void MathGridInset::metricsT(TextMetricsInfo const & mi) const
        }
        for (row_type row = 0; row <= nrows(); ++row)
                rowinfo_[row].offset_ -= h;
-       
+
 
        // 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 = max(wid, xcell(index(row, col)).width());
+               for (row_type row = 0; row < nrows(); ++row)
+                       wid = max(wid, cell(index(row, col)).width());
                colinfo_[col].width_ = wid;
        }
        colinfo_[ncols()].width_  = 0;
@@ -441,44 +562,43 @@ void MathGridInset::metricsT(TextMetricsInfo const & mi) const
        for (col_type col = 1; col <= ncols(); ++col) {
                colinfo_[col].offset_ =
                        colinfo_[col - 1].offset_ +
-                       colinfo_[col - 1].width_ + 
+                       colinfo_[col - 1].width_ +
                        colinfo_[col - 1].skip_ +
-                       1 ; //colsep() + 
+                       1 ; //colsep() +
                        //colinfo_[col].lines_ * vlinesep();
        }
 
 
-       width_   =   colinfo_[ncols() - 1].offset_      
-                      + colinfo_[ncols() - 1].width_
-                 //+ vlinesep() * colinfo_[ncols()].lines_
-                      + 2;
-
-       ascent_  = - rowinfo_[0].offset_          
-                      + rowinfo_[0].ascent_
-                 //+ hlinesep() * rowinfo_[0].lines_
-                      + 1;
+       dim.wid  =  colinfo_[ncols() - 1].offset_
+                      + colinfo_[ncols() - 1].width_
+                //+ vlinesep() * colinfo_[ncols()].lines_
+                      + 2;
 
-       descent_ =   rowinfo_[nrows() - 1].offset_
-                      + rowinfo_[nrows() - 1].descent_
-                 //+ hlinesep() * rowinfo_[nrows()].lines_
-                      + 1;
+       dim.asc  = -rowinfo_[0].offset_
+                      + rowinfo_[0].ascent_
+                //+ hlinesep() * rowinfo_[0].lines_
+                      + 1;
 
+       dim.des  =  rowinfo_[nrows() - 1].offset_
+                      + rowinfo_[nrows() - 1].descent_
+                //+ hlinesep() * rowinfo_[nrows()].lines_
+                      + 1;
 }
 
 
 void MathGridInset::drawT(TextPainter & pain, int x, int y) const
 {
        for (idx_type idx = 0; idx < nargs(); ++idx)
-               xcell(idx).drawT(pain, x + cellXOffset(idx), y + cellYOffset(idx));
+               cell(idx).drawT(pain, x + cellXOffset(idx), y + cellYOffset(idx));
 }
 
 
-string MathGridInset::eolString(row_type row) const
+string MathGridInset::eolString(row_type row, bool fragile) const
 {
        string eol;
 
        if (!rowinfo_[row].crskip_.zero())
-               eol += "[" + rowinfo_[row].crskip_.asLatexString() + "]";
+               eol += '[' + rowinfo_[row].crskip_.asLatexString() + ']';
 
        // make sure an upcoming '[' does not break anything
        if (row + 1 < nrows()) {
@@ -492,13 +612,13 @@ string MathGridInset::eolString(row_type row) const
        if (eol.empty() && row + 1 == nrows())
                return string();
 
-       return "\\\\" + eol + '\n';
+       return (fragile ? "\\protect\\\\" : "\\\\") + eol;
 }
 
 
-string MathGridInset::eocString(col_type col) const
+string MathGridInset::eocString(col_type col, col_type lastcol) const
 {
-       if (col + 1 == ncols())
+       if (col + 1 == lastcol)
                return string();
        return " & ";
 }
@@ -507,16 +627,21 @@ string MathGridInset::eocString(col_type col) const
 void MathGridInset::addRow(row_type row)
 {
        rowinfo_.insert(rowinfo_.begin() + row + 1, RowInfo());
-       cells_.insert(cells_.begin() + (row + 1) * ncols(), ncols(), MathXArray());
+       cells_.insert
+               (cells_.begin() + (row + 1) * ncols(), ncols(), MathArray());
+       cellinfo_.insert
+               (cellinfo_.begin() + (row + 1) * ncols(), ncols(), CellInfo());
 }
 
 
 void MathGridInset::appendRow()
 {
        rowinfo_.push_back(RowInfo());
-       //cells_.insert(cells_.end(), ncols(), MathXArray());
-       for (col_type col = 0; col < ncols(); ++col)
+       //cells_.insert(cells_.end(), ncols(), MathArray());
+       for (col_type col = 0; col < ncols(); ++col) {
                cells_.push_back(cells_type::value_type());
+               cellinfo_.push_back(CellInfo());
+       }
 }
 
 
@@ -525,24 +650,51 @@ void MathGridInset::delRow(row_type row)
        if (nrows() == 1)
                return;
 
-       cells_type::iterator it = cells_.begin() + row * ncols(); 
+       cells_type::iterator it = cells_.begin() + row * ncols();
        cells_.erase(it, it + ncols());
 
+       vector<CellInfo>::iterator jt = cellinfo_.begin() + row * ncols();
+       cellinfo_.erase(jt, jt + ncols());
+
        rowinfo_.erase(rowinfo_.begin() + row);
 }
 
 
+void MathGridInset::copyRow(row_type row)
+{
+       addRow(row);
+       for (col_type col = 0; col < ncols(); ++col)
+               cells_[(row + 1) * ncols() + col] = cells_[row * ncols() + col];
+}
+
+
+void MathGridInset::swapRow(row_type row)
+{
+       if (nrows() == 1)
+               return;
+       if (row + 1 == nrows())
+               --row;
+       for (col_type col = 0; col < ncols(); ++col)
+               swap(cells_[row * ncols() + col], cells_[(row + 1) * ncols() + col]);
+}
+
+
 void MathGridInset::addCol(col_type newcol)
 {
        const col_type nc = ncols();
        const row_type nr = nrows();
        cells_type new_cells((nc + 1) * nr);
-       
+       vector<CellInfo> new_cellinfo((nc + 1) * nr);
+
        for (row_type row = 0; row < nr; ++row)
-               for (col_type col = 0; col < nc; ++col)
+               for (col_type col = 0; col < nc; ++col) {
                        new_cells[row * (nc + 1) + col + (col > newcol)]
                                = cells_[row * nc + col];
+                       new_cellinfo[row * (nc + 1) + col + (col > newcol)]
+                               = cellinfo_[row * nc + col];
+               }
        swap(cells_, new_cells);
+       swap(cellinfo_, new_cellinfo);
 
        ColInfo inf;
        inf.skip_  = defaultColSpace(newcol);
@@ -557,24 +709,47 @@ void MathGridInset::delCol(col_type col)
                return;
 
        cells_type tmpcells;
-       for (col_type i = 0; i < nargs(); ++i) 
-               if (i % ncols() != col)
+       vector<CellInfo> tmpcellinfo;
+       for (col_type i = 0; i < nargs(); ++i)
+               if (i % ncols() != col) {
                        tmpcells.push_back(cells_[i]);
+                       tmpcellinfo.push_back(cellinfo_[i]);
+               }
        swap(cells_, tmpcells);
+       swap(cellinfo_, tmpcellinfo);
 
        colinfo_.erase(colinfo_.begin() + col);
 }
 
 
+void MathGridInset::copyCol(col_type col)
+{
+       addCol(col);
+       for (row_type row = 0; row < nrows(); ++row)
+               cells_[row * ncols() + col + 1] = cells_[row * ncols() + col];
+}
+
+
+void MathGridInset::swapCol(col_type col)
+{
+       if (ncols() == 1)
+               return;
+       if (col + 1 == ncols())
+               --col;
+       for (row_type row = 0; row < nrows(); ++row)
+               swap(cells_[row * ncols() + col], cells_[row * ncols() + col + 1]);
+}
+
+
 int MathGridInset::cellXOffset(idx_type idx) const
 {
        col_type c = col(idx);
        int x = colinfo_[c].offset_;
        char align = colinfo_[c].align_;
        if (align == 'r' || align == 'R')
-               x += colinfo_[c].width_ - xcell(idx).width(); 
+               x += colinfo_[c].width_ - cell(idx).width();
        if (align == 'c' || align == 'C')
-               x += (colinfo_[c].width_ - xcell(idx).width()) / 2; 
+               x += (colinfo_[c].width_ - cell(idx).width()) / 2;
        return x;
 }
 
@@ -585,144 +760,128 @@ int MathGridInset::cellYOffset(idx_type idx) const
 }
 
 
-bool MathGridInset::idxUpDown(idx_type & idx, bool up) const
+bool MathGridInset::idxUpDown(LCursor & cur, bool up) const
 {
        if (up) {
-               if (idx < ncols())
+               if (cur.idx() < ncols())
                        return false;
-               idx -= ncols();
-               return true;
+               cur.idx() -= ncols();
        } else {
-               if (idx >= ncols() * (nrows() - 1))
+               if (cur.idx() >= ncols() * (nrows() - 1))
                        return false;
-               idx += ncols();
-               return true;
+               cur.idx() += ncols();
        }
+       cur.pos() = cur.cell().x2pos(cur.x_target() - cur.cell().xo());
+       return true;
 }
 
-       
-bool MathGridInset::idxLeft(idx_type & idx, pos_type & pos) const
+
+bool MathGridInset::idxLeft(LCursor & cur) const
 {
        // leave matrix if on the left hand edge
-       if (col(idx) == 0)
+       if (cur.col() == 0)
                return false;
-       --idx;
-       pos = cell(idx).size();
+       --cur.idx();
+       cur.pos() = cur.lastpos();
        return true;
 }
-       
-       
-bool MathGridInset::idxRight(idx_type & idx, pos_type & pos) const
+
+
+bool MathGridInset::idxRight(LCursor & cur) const
 {
        // leave matrix if on the right hand edge
-       if (col(idx) + 1 == ncols())
+       if (cur.col() + 1 == ncols())
                return false;
-       ++idx;
-       pos = 0;
+       ++cur.idx();
+       cur.pos() = 0;
        return true;
 }
 
 
-bool MathGridInset::idxFirst(idx_type & idx, pos_type & pos) const
+bool MathGridInset::idxFirst(LCursor & cur) const
 {
        switch (v_align_) {
                case 't':
-                       idx = 0;
+                       cur.idx() = 0;
                        break;
                case 'b':
-                       idx = (nrows() - 1) * ncols();
+                       cur.idx() = (nrows() - 1) * ncols();
                        break;
-               default: 
-                       idx = ((nrows() - 1) / 2) * ncols();
+               default:
+                       cur.idx() = ((nrows() - 1) / 2) * ncols();
        }
-       pos = 0;
+       cur.pos() = 0;
        return true;
 }
 
 
-bool MathGridInset::idxLast(idx_type & idx, pos_type & pos) const
+bool MathGridInset::idxLast(LCursor & cur) const
 {
        switch (v_align_) {
                case 't':
-                       idx = ncols() - 1;
+                       cur.idx() = ncols() - 1;
                        break;
                case 'b':
-                       idx = nargs() - 1;
+                       cur.idx() = nargs() - 1;
                        break;
                default:
-                       idx = ((nrows() - 1) / 2 + 1) * ncols() - 1;
+                       cur.idx() = ((nrows() - 1) / 2 + 1) * ncols() - 1;
        }
-       pos = cell(idx).size();
+       cur.pos() = cur.lastpos();
        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
+bool MathGridInset::idxDelete(idx_type & idx)
 {
-       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 have just one row
+       if (nrows() == 1)
+               return false;
 
        // nothing to do if we are in the middle of the last row of the inset
        if (idx + ncols() > nargs())
-               return;
+               return false;
 
        // 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;
+                       return false;
 
        // move cells if necessary
        for (idx_type i = index(row(idx), 0); i < idx; ++i)
-               cell(i).swap(cell(i + ncols()));
-               
+               swap(cell(i), 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()) 
+       //if (idx + 1 != nargs())
        //      cell(idx).swap(cell(idx + 1));
+
+       // we handled the event..
+       return true;
+}
+
+
+// reimplement old behaviour when pressing Delete in the last position
+// of a cell
+void MathGridInset::idxGlue(idx_type idx)
+{
+       col_type c = col(idx);
+       if (c + 1 == ncols()) {
+               if (row(idx) + 1 != nrows()) {
+                       for (col_type cc = 0; cc < ncols(); ++cc)
+                               cell(idx).append(cell(idx + cc + 1));
+                       delRow(row(idx) + 1);
+               }
+       } else {
+               cell(idx).append(cell(idx + 1));
+               for (col_type cc = c + 2; cc < ncols(); ++cc)
+                       cell(idx - c + cc - 1) = cell(idx - c + cc);
+               cell(idx - c + ncols() - 1).clear();
+       }
 }
 
 
@@ -738,18 +897,15 @@ MathGridInset::RowInfo & MathGridInset::rowinfo(row_type row)
 }
 
 
-vector<MathInset::idx_type>
-       MathGridInset::idxBetween(idx_type from, idx_type to) const
+bool MathGridInset::idxBetween(idx_type idx, idx_type from, idx_type to) const
 {
-       row_type r1 = min(row(from), row(to));
-       row_type r2 = max(row(from), row(to));
-       col_type c1 = min(col(from), col(to));
-       col_type c2 = max(col(from), col(to));
-       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;
+       row_type const ri = row(idx);
+       row_type const r1 = min(row(from), row(to));
+       row_type const r2 = max(row(from), row(to));
+       col_type const ci = col(idx);
+       col_type const c1 = min(col(from), col(to));
+       col_type const c2 = max(col(from), col(to));
+       return r1 <= ri && ri <= r2 && c1 <= ci && ci <= c2;
 }
 
 
@@ -772,7 +928,7 @@ 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) 
+               for (col_type col = 0; col < ncols(); ++col)
                        os << cell(index(row, col));
                os << ETag("mtr");
        }
@@ -784,13 +940,28 @@ 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);
+               // don't write & and empty cells at end of line
+               col_type lastcol = 0;
+               bool emptyline = true;
+               for (col_type col = 0; col < ncols(); ++col)
+                       if (!cell(index(row, col)).empty()) {
+                               lastcol = col + 1;
+                               emptyline = false;
+                       }
+               for (col_type col = 0; col < lastcol; ++col)
+                       os << cell(index(row, col)) << eocString(col, lastcol);
+               os << eolString(row, os.fragile());
+               // append newline only if line wasn't completely empty
+               // and this was not the last line in the grid
+               if (!emptyline && row + 1 < nrows())
+                       os << "\n";
        }
        string const s = verboseHLine(rowinfo_[nrows()].lines_);
-       if (!s.empty() && s != " ")
+       if (!s.empty() && s != " ") {
+               if (os.fragile())
+                       os << "\\protect";
                os << "\\\\" << s;
+       }
 }
 
 
@@ -820,5 +991,252 @@ int MathGridInset::vlinesep() const
 
 int MathGridInset::border() const
 {
-       return 2;
+       return 1;
+}
+
+
+void MathGridInset::splitCell(LCursor & cur)
+{
+       if (cur.idx() == cur.lastidx())
+               return;
+       MathArray ar = cur.cell();
+       ar.erase(0, cur.pos());
+       cur.cell().erase(cur.pos(), cur.lastpos());
+       ++cur.idx();
+       cur.pos() = 0;
+       cur.cell().insert(0, ar);
+}
+
+
+void MathGridInset::priv_dispatch(LCursor & cur, FuncRequest & cmd)
+{
+       //lyxerr << "*** MathGridInset: request: " << cmd << endl;
+       switch (cmd.action) {
+
+       case LFUN_MOUSE_RELEASE:
+               //if (cmd.button() == mouse_button::button3) {
+               //      GridInsetMailer(*this).showDialog();
+               //      return DispatchResult(true, true);
+               //}
+               MathNestInset::priv_dispatch(cur, cmd);
+               break;
+
+       case LFUN_INSET_DIALOG_UPDATE:
+               GridInsetMailer(*this).updateDialog(&cur.bv());
+               break;
+
+       // insert file functions
+       case LFUN_DELETE_LINE_FORWARD:
+               recordUndo(cur);
+               //autocorrect_ = false;
+               //macroModeClose();
+               //if (selection_) {
+               //      selDel();
+               //      break;
+               //}
+               if (nrows() > 1)
+                       delRow(cur.row());
+               if (cur.idx() > cur.lastidx())
+                       cur.idx() = cur.lastidx();
+               if (cur.pos() > cur.lastpos())
+                       cur.pos() = cur.lastpos();
+               break;
+
+       case LFUN_CELL_SPLIT:
+               recordUndo(cur);
+               splitCell(cur);
+               break;
+
+       case LFUN_BREAKLINE: {
+               recordUndo(cur);
+               row_type const r = cur.row();
+               addRow(r);
+
+               // split line
+               for (col_type c = col(cur.idx()) + 1; c < ncols(); ++c)
+                       swap(cell(index(r, c)), cell(index(r + 1, c)));
+
+               // split cell
+               splitCell(cur);
+               swap(cell(cur.idx()), cell(cur.idx() + ncols() - 1));
+               if (cur.idx() > 0)
+                       --cur.idx();
+               cur.pos() = cur.lastpos();
+
+               //mathcursor->normalize();
+               //cmd = FuncRequest(LFUN_FINISHED_LEFT);
+               break;
+       }
+
+       case LFUN_TABULAR_FEATURE: {
+               recordUndo(cur);
+               //lyxerr << "handling tabular-feature " << cmd.argument << endl;
+               istringstream is(cmd.argument);
+               string s;
+               is >> s;
+               if (s == "valign-top")
+                       valign('t');
+               else if (s == "valign-middle")
+                       valign('c');
+               else if (s == "valign-bottom")
+                       valign('b');
+               else if (s == "align-left")
+                       halign('l', col(cur.idx()));
+               else if (s == "align-right")
+                       halign('r', col(cur.idx()));
+               else if (s == "align-center")
+                       halign('c', col(cur.idx()));
+               else if (s == "append-row")
+                       for (int i = 0, n = extractInt(is); i < n; ++i)
+                               addRow(cur.row());
+               else if (s == "delete-row")
+                       for (int i = 0, n = extractInt(is); i < n; ++i) {
+                               delRow(cur.row());
+                               if (cur.idx() > nargs())
+                                       cur.idx() -= ncols();
+                       }
+               else if (s == "copy-row")
+                       for (int i = 0, n = extractInt(is); i < n; ++i)
+                               copyRow(cur.row());
+               else if (s == "swap-row")
+                       swapRow(cur.row());
+               else if (s == "append-column")
+                       for (int i = 0, n = extractInt(is); i < n; ++i) {
+                               row_type r = cur.row();
+                               col_type c = col(cur.idx());
+                               addCol(c);
+                               cur.idx() = index(r, c);
+                       }
+               else if (s == "delete-column")
+                       for (int i = 0, n = extractInt(is); i < n; ++i) {
+                               row_type r = cur.row();
+                               col_type c = col(cur.idx());
+                               delCol(col(cur.idx()));
+                               cur.idx() = index(r, c);
+                               if (cur.idx() > nargs())
+                                       cur.idx() -= ncols();
+                       }
+               else if (s == "copy-column")
+                       copyCol(col(cur.idx()));
+               else if (s == "swap-column")
+                       swapCol(col(cur.idx()));
+               else {
+                       cur.undispatched();
+                       break;
+               }
+               lyxerr << "returning FINISHED_LEFT" << endl;
+               break;
+       }
+
+       case LFUN_PASTE: {
+               recordUndo(cur);
+               lyxerr << "MathGridInset: PASTE: " << cmd << std::endl;
+               istringstream is(cmd.argument);
+               int n = 0;
+               is >> n;
+               MathGridInset grid(1, 1);
+               mathed_parse_normal(grid, lyx::cap::getSelection(cur.buffer(), n));
+               if (grid.nargs() == 1) {
+                       // single cell/part of cell
+                       cur.cell().insert(cur.pos(), grid.cell(0));
+                       cur.pos() += grid.cell(0).size();
+               } else {
+                       // multiple cells
+                       col_type const numcols =
+                               min(grid.ncols(), ncols() - col(cur.idx()));
+                       row_type const numrows =
+                               min(grid.nrows(), nrows() - cur.row());
+                       for (row_type r = 0; r < numrows; ++r) {
+                               for (col_type c = 0; c < numcols; ++c) {
+                                       idx_type i = index(r + cur.row(), c + col(cur.idx()));
+                                       cell(i).insert(0, grid.cell(grid.index(r, c)));
+                               }
+                               // append the left over horizontal cells to the last column
+                               idx_type i = index(r + cur.row(), ncols() - 1);
+                               for (MathInset::col_type c = numcols; c < grid.ncols(); ++c)
+                                       cell(i).append(grid.cell(grid.index(r, c)));
+                       }
+                       // append the left over vertical cells to the last _cell_
+                       idx_type i = nargs() - 1;
+                       for (row_type r = numrows; r < grid.nrows(); ++r)
+                               for (col_type c = 0; c < grid.ncols(); ++c)
+                                       cell(i).append(grid.cell(grid.index(r, c)));
+               }
+               break;
+       }
+
+       case LFUN_HOMESEL:
+       case LFUN_HOME:
+       case LFUN_WORDLEFTSEL:
+       case LFUN_WORDLEFT:
+               cur.selHandle(cmd.action == LFUN_WORDLEFTSEL || cmd.action == LFUN_HOMESEL);
+               cur.macroModeClose();
+               if (cur.pos() != 0) {
+                       cur.pos() = 0;
+               } else if (cur.idx() % cur.ncols() != 0) {
+                       cur.idx() -= cur.idx() % cur.ncols();
+                       cur.pos() = 0;
+               } else if (cur.idx() != 0) {
+                       cur.idx() = 0;
+                       cur.pos() = 0;
+               } else {
+                       cmd = FuncRequest(LFUN_FINISHED_LEFT);
+               }
+               break;
+
+       case LFUN_WORDRIGHTSEL:
+       case LFUN_WORDRIGHT:
+       case LFUN_ENDSEL:
+       case LFUN_END:
+               cur.selHandle(cmd.action == LFUN_WORDRIGHTSEL || cmd.action == LFUN_ENDSEL);
+               cur.macroModeClose();
+               cur.clearTargetX();
+               if (cur.pos() != cur.lastpos()) {
+                       cur.pos() = cur.lastpos();
+               } else if ((cur.idx() + 1) % cur.ncols() != 0) {
+                       cur.idx() += cur.ncols() - 1 - cur.idx() % cur.ncols();
+                       cur.pos() = cur.lastpos();
+               } else if (cur.idx() != cur.lastidx()) {
+                       cur.idx() = cur.lastidx();
+                       cur.pos() = cur.lastpos();
+               } else {
+                       cmd = FuncRequest(LFUN_FINISHED_RIGHT);
+               }
+               break;
+
+       default:
+               MathNestInset::priv_dispatch(cur, cmd);
+       }
+}
+
+
+bool MathGridInset::getStatus(LCursor & cur, FuncRequest const & cmd,
+               FuncStatus & flag) const
+{
+       bool ret = true;
+       switch (cmd.action) {
+       case LFUN_TABULAR_FEATURE:
+#if 0
+               // should be more precise
+               if (v_align_ == '\0') {
+                       flag.enable(true);
+                       break;
+               }
+               if (cmd.argument.empty()) {
+                       flag.enable(false);
+                       break;
+               }
+               if (!contains("tcb", cmd.argument[0])) {
+                       flag.enable(false);
+                       break;
+               }
+               flag.setOnOff(cmd.argument[0] == v_align_);
+#endif
+               flag.enabled(true);
+               break;
+       default:
+               ret = MathNestInset::getStatus(cur, cmd, flag);
+               break;
+       }
+       return ret;
 }