src/mathed/InsetMathGrid.cpp

   1 /**
   2  * \file InsetMathGrid.cpp
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author André Pönitz
   7  *
   8  * Full author contact details are available in file CREDITS.
   9  */
  10
  11 #include <config.h>
  12
  13 #include "InsetMathGrid.h"
  14 #include "MathData.h"
  15 #include "MathParser.h"
  16 #include "MathStream.h"
  17
  18 #include "BufferView.h"
  19 #include "CutAndPaste.h"
  20 #include "FuncStatus.h"
  21 #include "Color.h"
  22 #include "Cursor.h"
  23 #include "debug.h"
  24 #include "FuncRequest.h"
  25 #include "gettext.h"
  26 #include "Undo.h"
  27
  28 #include "frontends/Clipboard.h"
  29 #include "frontends/Painter.h"
  30
  31 #include "support/lstrings.h"
  32
  33 #include <sstream>
  34
  35
  36 namespace lyx {
  37
  38 using support::bformat;
  39
  40 using std::endl;
  41 using std::max;
  42 using std::min;
  43 using std::swap;
  44
  45 using std::string;
  46 using std::istream;
  47 using std::istringstream;
  48 using std::vector;
  49
  50
  51 namespace {
  52
  53 docstring verboseHLine(int n)
  54 {
  55         docstring res;
  56         for (int i = 0; i < n; ++i)
  57                 res += "\\hline";
  58         if (n)
  59                 res += ' ';
  60         return res;
  61 }
  62
  63
  64 int extractInt(istream & is)
  65 {
  66         int num = 1;
  67         is >> num;
  68         return (num == 0) ? 1 : num;
  69 }
  70
  71 }
  72
  73
  74 //////////////////////////////////////////////////////////////
  75
  76
  77 InsetMathGrid::CellInfo::CellInfo()
  78         : dummy_(false)
  79 {}
  80
  81
  82
  83
  84 //////////////////////////////////////////////////////////////
  85
  86
  87 InsetMathGrid::RowInfo::RowInfo()
  88         : lines_(0), skip_(0), allow_pagebreak_(true)
  89 {}
  90
  91
  92
  93 int InsetMathGrid::RowInfo::skipPixels() const
  94 {
  95         return crskip_.inBP();
  96 }
  97
  98
  99
 100 //////////////////////////////////////////////////////////////
 101
 102
 103 InsetMathGrid::ColInfo::ColInfo()
 104         : align_('c'), lines_(0)
 105 {}
 106
 107
 108 //////////////////////////////////////////////////////////////
 109
 110
 111 InsetMathGrid::InsetMathGrid(char v, docstring const & h)
 112         : InsetMathNest(guessColumns(h)),
 113           rowinfo_(2),
 114           colinfo_(guessColumns(h) + 1),
 115           cellinfo_(1 * guessColumns(h))
 116 {
 117         setDefaults();
 118         valign(v);
 119         halign(h);
 120         //lyxerr << "created grid with " << ncols() << " columns" << endl;
 121 }
 122
 123
 124 InsetMathGrid::InsetMathGrid()
 125         : InsetMathNest(1),
 126           rowinfo_(1 + 1),
 127                 colinfo_(1 + 1),
 128                 cellinfo_(1),
 129                 v_align_('c')
 130 {
 131         setDefaults();
 132 }
 133
 134
 135 InsetMathGrid::InsetMathGrid(col_type m, row_type n)
 136         : InsetMathNest(m * n),
 137           rowinfo_(n + 1),
 138                 colinfo_(m + 1),
 139                 cellinfo_(m * n),
 140                 v_align_('c')
 141 {
 142         setDefaults();
 143 }
 144
 145
 146 InsetMathGrid::InsetMathGrid(col_type m, row_type n, char v, docstring const & h)
 147         : InsetMathNest(m * n),
 148           rowinfo_(n + 1),
 149           colinfo_(m + 1),
 150                 cellinfo_(m * n),
 151                 v_align_(v)
 152 {
 153         setDefaults();
 154         valign(v);
 155         halign(h);
 156 }
 157
 158
 159 Inset * InsetMathGrid::clone() const
 160 {
 161         return new InsetMathGrid(*this);
 162 }
 163
 164
 165 InsetMath::idx_type InsetMathGrid::index(row_type row, col_type col) const
 166 {
 167         return col + ncols() * row;
 168 }
 169
 170
 171 void InsetMathGrid::setDefaults()
 172 {
 173         if (ncols() <= 0)
 174                 lyxerr << "positive number of columns expected" << endl;
 175         //if (nrows() <= 0)
 176         //      lyxerr << "positive number of rows expected" << endl;
 177         for (col_type col = 0; col < ncols(); ++col) {
 178                 colinfo_[col].align_ = defaultColAlign(col);
 179                 colinfo_[col].skip_  = defaultColSpace(col);
 180                 colinfo_[col].special_.clear();
 181         }
 182 }
 183
 184
 185 void InsetMathGrid::halign(docstring const & hh)
 186 {
 187         col_type col = 0;
 188         for (docstring::const_iterator it = hh.begin(); it != hh.end(); ++it) {
 189                 char_type c = *it;
 190                 if (c == '|') {
 191                         colinfo_[col].lines_++;
 192                 } else if ((c == 'p' || c == 'm' || c == 'b'||
 193                             c == '!' || c == '@' || c == '>' || c == '<') &&
 194                            it + 1 != hh.end() && *(it + 1) == '{') {
 195                         // @{decl.} and p{width} are standard LaTeX, the
 196                         // others are extensions by array.sty
 197                         bool const newcolumn = c == 'p' || c == 'm' || c == 'b';
 198                         if (newcolumn) {
 199                                 // this declares a new column
 200                                 if (col >= ncols())
 201                                         // Only intercolumn stuff is allowed
 202                                         // in the last dummy column
 203                                         break;
 204                                 colinfo_[col].align_ = 'l';
 205                         } else {
 206                                 // this is intercolumn stuff
 207                                 if (colinfo_[col].special_.empty())
 208                                         // Overtake possible lines
 209                                         colinfo_[col].special_ = docstring(colinfo_[col].lines_, '|');
 210                         }
 211                         int brace_open = 0;
 212                         int brace_close = 0;
 213                         while (it != hh.end()) {
 214                                 c = *it;
 215                                 colinfo_[col].special_ += c;
 216                                 if (c == '{')
 217                                         ++brace_open;
 218                                 else if (c == '}')
 219                                         ++brace_close;
 220                                 ++it;
 221                                 if (brace_open > 0 && brace_open == brace_close)
 222                                         break;
 223                         }
 224                         --it;
 225                         if (newcolumn) {
 226                                 colinfo_[col].lines_ = std::count(
 227                                         colinfo_[col].special_.begin(),
 228                                         colinfo_[col].special_.end(), '|');
 229                                 LYXERR(Debug::MATHED)
 230                                         << "special column separator: `"
 231                                         << to_utf8(colinfo_[col].special_)
 232                                         << '\'' << endl;
 233                                 ++col;
 234                                 colinfo_[col].lines_ = 0;
 235                                 colinfo_[col].special_.clear();
 236                         }
 237                 } else if (col >= ncols()) {
 238                         // Only intercolumn stuff is allowed in the last
 239                         // dummy column
 240                         break;
 241                 } else if (c == 'c' || c == 'l' || c == 'r') {
 242                         colinfo_[col].align_ = static_cast<char>(c);
 243                         if (!colinfo_[col].special_.empty()) {
 244                                 colinfo_[col].special_ += c;
 245                                 colinfo_[col].lines_ = std::count(
 246                                                 colinfo_[col].special_.begin(),
 247                                                 colinfo_[col].special_.end(), '|');
 248                                 LYXERR(Debug::MATHED)
 249                                         << "special column separator: `"
 250                                         << to_utf8(colinfo_[col].special_)
 251                                         << '\'' << endl;
 252                         }
 253                         ++col;
 254                         colinfo_[col].lines_ = 0;
 255                         colinfo_[col].special_.clear();
 256                 } else {
 257                         lyxerr << "unknown column separator: '" << c << "'" << endl;
 258                 }
 259         }
 260
 261 /*
 262         col_type n = hh.size();
 263         if (n > ncols())
 264                 n = ncols();
 265         for (col_type col = 0; col < n; ++col)
 266                 colinfo_[col].align_ = hh[col];
 267 */
 268 }
 269
 270
 271 InsetMathGrid::col_type InsetMathGrid::guessColumns(docstring const & hh) const
 272 {
 273         col_type col = 0;
 274         for (docstring::const_iterator it = hh.begin(); it != hh.end(); ++it)
 275                 if (*it == 'c' || *it == 'l' || *it == 'r'||
 276                     *it == 'p' || *it == 'm' || *it == 'b')
 277                         ++col;
 278         // let's have at least one column, even if we did not recognize its
 279         // alignment
 280         if (col == 0)
 281                 col = 1;
 282         return col;
 283 }
 284
 285
 286 void InsetMathGrid::halign(char h, col_type col)
 287 {
 288         colinfo_[col].align_ = h;
 289         if (!colinfo_[col].special_.empty()) {
 290                 char_type & c = colinfo_[col].special_[colinfo_[col].special_.size() - 1];
 291                 if (c == 'l' || c == 'c' || c == 'r')
 292                         c = h;
 293         }
 294         // FIXME: Change alignment of p, m and b columns, too
 295 }
 296
 297
 298 char InsetMathGrid::halign(col_type col) const
 299 {
 300         return colinfo_[col].align_;
 301 }
 302
 303
 304 docstring InsetMathGrid::halign() const
 305 {
 306         docstring res;
 307         for (col_type col = 0; col < ncols(); ++col) {
 308                 if (colinfo_[col].special_.empty()) {
 309                         res += docstring(colinfo_[col].lines_, '|');
 310                         res += colinfo_[col].align_;
 311                 } else
 312                         res += colinfo_[col].special_;
 313         }
 314         if (colinfo_[ncols()].special_.empty())
 315                 return res + docstring(colinfo_[ncols()].lines_, '|');
 316         return res + colinfo_[ncols()].special_;
 317 }
 318
 319
 320 void InsetMathGrid::valign(char c)
 321 {
 322         v_align_ = c;
 323 }
 324
 325
 326 char InsetMathGrid::valign() const
 327 {
 328         return v_align_;
 329 }
 330
 331
 332 InsetMathGrid::col_type InsetMathGrid::ncols() const
 333 {
 334         return colinfo_.size() - 1;
 335 }
 336
 337
 338 InsetMathGrid::row_type InsetMathGrid::nrows() const
 339 {
 340         return rowinfo_.size() - 1;
 341 }
 342
 343
 344 InsetMathGrid::col_type InsetMathGrid::col(idx_type idx) const
 345 {
 346         return idx % ncols();
 347 }
 348
 349
 350 InsetMathGrid::row_type InsetMathGrid::row(idx_type idx) const
 351 {
 352         return idx / ncols();
 353 }
 354
 355
 356 void InsetMathGrid::vcrskip(Length const & crskip, row_type row)
 357 {
 358         rowinfo_[row].crskip_ = crskip;
 359 }
 360
 361
 362 Length InsetMathGrid::vcrskip(row_type row) const
 363 {
 364         return rowinfo_[row].crskip_;
 365 }
 366
 367
 368 void InsetMathGrid::metrics(MetricsInfo & mi, Dimension & dim) const
 369 {
 370         // let the cells adjust themselves
 371         InsetMathNest::metrics(mi);
 372
 373         BufferView & bv = *mi.base.bv;
 374
 375         // compute absolute sizes of vertical structure
 376         for (row_type row = 0; row < nrows(); ++row) {
 377                 int asc  = 0;
 378                 int desc = 0;
 379                 for (col_type col = 0; col < ncols(); ++col) {
 380                         Dimension const & dimc = cell(index(row, col)).dimension(bv);
 381                         asc  = max(asc,  dimc.asc);
 382                         desc = max(desc, dimc.des);
 383                 }
 384                 rowinfo_[row].ascent_  = asc;
 385                 rowinfo_[row].descent_ = desc;
 386         }
 387         rowinfo_[0].ascent_       += hlinesep() * rowinfo_[0].lines_;
 388         rowinfo_[nrows()].ascent_  = 0;
 389         rowinfo_[nrows()].descent_ = 0;
 390
 391         // compute vertical offsets
 392         rowinfo_[0].offset_ = 0;
 393         for (row_type row = 1; row <= nrows(); ++row) {
 394                 rowinfo_[row].offset_  =
 395                         rowinfo_[row - 1].offset_  +
 396                         rowinfo_[row - 1].descent_ +
 397                         rowinfo_[row - 1].skipPixels() +
 398                         rowsep() +
 399                         rowinfo_[row].lines_ * hlinesep() +
 400                         rowinfo_[row].ascent_;
 401         }
 402
 403         // adjust vertical offset
 404         int h = 0;
 405         switch (v_align_) {
 406                 case 't':
 407                         h = 0;
 408                         break;
 409                 case 'b':
 410                         h = rowinfo_[nrows() - 1].offset_;
 411                         break;
 412                 default:
 413                         h = rowinfo_[nrows() - 1].offset_ / 2;
 414         }
 415         for (row_type row = 0; row <= nrows(); ++row)
 416                 rowinfo_[row].offset_ -= h;
 417
 418
 419         // compute absolute sizes of horizontal structure
 420         for (col_type col = 0; col < ncols(); ++col) {
 421                 int wid = 0;
 422                 for (row_type row = 0; row < nrows(); ++row)
 423                         wid = max(wid, cell(index(row, col)).dimension(bv).wid);
 424                 colinfo_[col].width_ = wid;
 425         }
 426         colinfo_[ncols()].width_  = 0;
 427
 428         // compute horizontal offsets
 429         colinfo_[0].offset_ = border();
 430         for (col_type col = 1; col <= ncols(); ++col) {
 431                 colinfo_[col].offset_ =
 432                         colinfo_[col - 1].offset_ +
 433                         colinfo_[col - 1].width_ +
 434                         colinfo_[col - 1].skip_ +
 435                         colsep() +
 436                         colinfo_[col].lines_ * vlinesep();
 437         }
 438
 439
 440         dim.wid   =   colinfo_[ncols() - 1].offset_
 441                        + colinfo_[ncols() - 1].width_
 442                  + vlinesep() * colinfo_[ncols()].lines_
 443                        + border();
 444
 445         dim.asc  = - rowinfo_[0].offset_
 446                        + rowinfo_[0].ascent_
 447                  + hlinesep() * rowinfo_[0].lines_
 448                        + border();
 449
 450         dim.des =   rowinfo_[nrows() - 1].offset_
 451                        + rowinfo_[nrows() - 1].descent_
 452                  + hlinesep() * rowinfo_[nrows()].lines_
 453                        + border();
 454
 455
 456 /*
 457         // Increase ws_[i] for 'R' columns (except the first one)
 458         for (int i = 1; i < nc_; ++i)
 459                 if (align_[i] == 'R')
 460                         ws_[i] += 10 * df_width;
 461         // Increase ws_[i] for 'C' column
 462         if (align_[0] == 'C')
 463                 if (ws_[0] < 7 * workwidth / 8)
 464                         ws_[0] = 7 * workwidth / 8;
 465
 466         // Adjust local tabs
 467         width = colsep();
 468         for (cxrow = row_.begin(); cxrow; ++cxrow) {
 469                 int rg = COLSEP;
 470                 int lf = 0;
 471                 for (int i = 0; i < nc_; ++i) {
 472                         bool isvoid = false;
 473                         if (cxrow->getTab(i) <= 0) {
 474                                 cxrow->setTab(i, df_width);
 475                                 isvoid = true;
 476                         }
 477                         switch (align_[i]) {
 478                         case 'l':
 479                                 lf = 0;
 480                                 break;
 481                         case 'c':
 482                                 lf = (ws_[i] - cxrow->getTab(i))/2;
 483                                 break;
 484                         case 'r':
 485                         case 'R':
 486                                 lf = ws_[i] - cxrow->getTab(i);
 487                                 break;
 488                         case 'C':
 489                                 if (cxrow == row_.begin())
 490                                         lf = 0;
 491                                 else if (cxrow.is_last())
 492                                         lf = ws_[i] - cxrow->getTab(i);
 493                                 else
 494                                         lf = (ws_[i] - cxrow->getTab(i))/2;
 495                                 break;
 496                         }
 497                         int const ww = (isvoid) ? lf : lf + cxrow->getTab(i);
 498                         cxrow->setTab(i, lf + rg);
 499                         rg = ws_[i] - ww + colsep();
 500                         if (cxrow == row_.begin())
 501                                 width += ws_[i] + colsep();
 502                 }
 503                 cxrow->setBaseline(cxrow->getBaseline() - ascent);
 504         }
 505 */
 506         metricsMarkers2(dim);
 507         // Cache the inset dimension.
 508         setDimCache(mi, dim);
 509 }
 510
 511
 512 void InsetMathGrid::draw(PainterInfo & pi, int x, int y) const
 513 {
 514         drawWithMargin(pi, x, y, 0, 0);
 515 }
 516
 517
 518 void InsetMathGrid::drawWithMargin(PainterInfo & pi, int x, int y,
 519         int lmargin, int rmargin) const
 520 {
 521         Dimension const dim = dimension(*pi.base.bv);
 522         BufferView const & bv = *pi.base.bv;
 523
 524         for (idx_type idx = 0; idx < nargs(); ++idx)
 525                 cell(idx).draw(pi, x + lmargin + cellXOffset(bv, idx),
 526                         y + cellYOffset(idx));
 527
 528         for (row_type row = 0; row <= nrows(); ++row)
 529                 for (unsigned int i = 0; i < rowinfo_[row].lines_; ++i) {
 530                         int yy = y + rowinfo_[row].offset_ - rowinfo_[row].ascent_
 531                                 - i * hlinesep() - hlinesep()/2 - rowsep()/2;
 532                         pi.pain.line(x + lmargin + 1, yy,
 533                                      x + dim.width() - rmargin - 1, yy,
 534                                      Color::foreground);
 535                 }
 536
 537         for (col_type col = 0; col <= ncols(); ++col)
 538                 for (unsigned int i = 0; i < colinfo_[col].lines_; ++i) {
 539                         int xx = x + lmargin + colinfo_[col].offset_
 540                                 - i * vlinesep() - vlinesep()/2 - colsep()/2;
 541                         pi.pain.line(xx, y - dim.ascent() + 1,
 542                                      xx, y + dim.descent() - 1,
 543                                      Color::foreground);
 544                 }
 545         drawMarkers2(pi, x, y);
 546 }
 547
 548
 549 void InsetMathGrid::metricsT(TextMetricsInfo const & mi, Dimension & dim) const
 550 {
 551         // let the cells adjust themselves
 552         //InsetMathNest::metrics(mi);
 553         for (idx_type i = 0; i < nargs(); ++i)
 554                 cell(i).metricsT(mi, dim);
 555
 556         // compute absolute sizes of vertical structure
 557         for (row_type row = 0; row < nrows(); ++row) {
 558                 int asc  = 0;
 559                 int desc = 0;
 560                 for (col_type col = 0; col < ncols(); ++col) {
 561                         //MathData const & c = cell(index(row, col));
 562                         // FIXME: BROKEN!
 563                         Dimension dimc;
 564                         asc  = max(asc,  dimc.ascent());
 565                         desc = max(desc, dimc.descent());
 566                 }
 567                 rowinfo_[row].ascent_  = asc;
 568                 rowinfo_[row].descent_ = desc;
 569         }
 570         //rowinfo_[0].ascent_       += hlinesep() * rowinfo_[0].lines_;
 571         rowinfo_[nrows()].ascent_  = 0;
 572         rowinfo_[nrows()].descent_ = 0;
 573
 574         // compute vertical offsets
 575         rowinfo_[0].offset_ = 0;
 576         for (row_type row = 1; row <= nrows(); ++row) {
 577                 rowinfo_[row].offset_  =
 578                         rowinfo_[row - 1].offset_  +
 579                         rowinfo_[row - 1].descent_ +
 580                         //rowinfo_[row - 1].skipPixels() +
 581                         1 + //rowsep() +
 582                         //rowinfo_[row].lines_ * hlinesep() +
 583                         rowinfo_[row].ascent_;
 584         }
 585
 586         // adjust vertical offset
 587         int h = 0;
 588         switch (v_align_) {
 589                 case 't':
 590                         h = 0;
 591                         break;
 592                 case 'b':
 593                         h = rowinfo_[nrows() - 1].offset_;
 594                         break;
 595                 default:
 596                         h = rowinfo_[nrows() - 1].offset_ / 2;
 597         }
 598         for (row_type row = 0; row <= nrows(); ++row)
 599                 rowinfo_[row].offset_ -= h;
 600
 601
 602         // compute absolute sizes of horizontal structure
 603         for (col_type col = 0; col < ncols(); ++col) {
 604                 int wid = 0;
 605                 for (row_type row = 0; row < nrows(); ++row) {
 606                         // FIXME: BROKEN!
 607                         //wid = max(wid, cell(index(row, col)).width());
 608                 }
 609                 colinfo_[col].width_ = wid;
 610         }
 611         colinfo_[ncols()].width_  = 0;
 612
 613         // compute horizontal offsets
 614         colinfo_[0].offset_ = border();
 615         for (col_type col = 1; col <= ncols(); ++col) {
 616                 colinfo_[col].offset_ =
 617                         colinfo_[col - 1].offset_ +
 618                         colinfo_[col - 1].width_ +
 619                         colinfo_[col - 1].skip_ +
 620                         1 ; //colsep() +
 621                         //colinfo_[col].lines_ * vlinesep();
 622         }
 623
 624
 625         dim.wid  =  colinfo_[ncols() - 1].offset_
 626                        + colinfo_[ncols() - 1].width_
 627                  //+ vlinesep() * colinfo_[ncols()].lines_
 628                        + 2;
 629
 630         dim.asc  = -rowinfo_[0].offset_
 631                        + rowinfo_[0].ascent_
 632                  //+ hlinesep() * rowinfo_[0].lines_
 633                        + 1;
 634
 635         dim.des  =  rowinfo_[nrows() - 1].offset_
 636                        + rowinfo_[nrows() - 1].descent_
 637                  //+ hlinesep() * rowinfo_[nrows()].lines_
 638                        + 1;
 639 }
 640
 641
 642 void InsetMathGrid::drawT(TextPainter & pain, int x, int y) const
 643 {
 644 //      for (idx_type idx = 0; idx < nargs(); ++idx)
 645 //              cell(idx).drawT(pain, x + cellXOffset(idx), y + cellYOffset(idx));
 646 }
 647
 648
 649 docstring InsetMathGrid::eolString(row_type row, bool emptyline, bool fragile) const
 650 {
 651         docstring eol;
 652
 653         if (!rowinfo_[row].crskip_.zero())
 654                 eol += '[' + from_utf8(rowinfo_[row].crskip_.asLatexString()) + ']';
 655         else if(!rowinfo_[row].allow_pagebreak_)
 656                 eol += '*';
 657
 658         // make sure an upcoming '[' does not break anything
 659         if (row + 1 < nrows()) {
 660                 MathData const & c = cell(index(row + 1, 0));
 661                 if (c.size() && c.front()->getChar() == '[')
 662                         //eol += "[0pt]";
 663                         eol += "{}";
 664         }
 665
 666         // only add \\ if necessary
 667         if (eol.empty() && row + 1 == nrows() && (nrows() == 1 || !emptyline))
 668                 return docstring();
 669
 670         return (fragile ? "\\protect\\\\" : "\\\\") + eol;
 671 }
 672
 673
 674 docstring InsetMathGrid::eocString(col_type col, col_type lastcol) const
 675 {
 676         if (col + 1 == lastcol)
 677                 return docstring();
 678         return from_ascii(" & ");
 679 }
 680
 681
 682 void InsetMathGrid::addRow(row_type row)
 683 {
 684         rowinfo_.insert(rowinfo_.begin() + row + 1, RowInfo());
 685         cells_.insert
 686                 (cells_.begin() + (row + 1) * ncols(), ncols(), MathData());
 687         cellinfo_.insert
 688                 (cellinfo_.begin() + (row + 1) * ncols(), ncols(), CellInfo());
 689 }
 690
 691
 692 void InsetMathGrid::appendRow()
 693 {
 694         rowinfo_.push_back(RowInfo());
 695         //cells_.insert(cells_.end(), ncols(), MathData());
 696         for (col_type col = 0; col < ncols(); ++col) {
 697                 cells_.push_back(cells_type::value_type());
 698                 cellinfo_.push_back(CellInfo());
 699         }
 700 }
 701
 702
 703 void InsetMathGrid::delRow(row_type row)
 704 {
 705         if (nrows() == 1)
 706                 return;
 707
 708         cells_type::iterator it = cells_.begin() + row * ncols();
 709         cells_.erase(it, it + ncols());
 710
 711         vector<CellInfo>::iterator jt = cellinfo_.begin() + row * ncols();
 712         cellinfo_.erase(jt, jt + ncols());
 713
 714         rowinfo_.erase(rowinfo_.begin() + row);
 715 }
 716
 717
 718 void InsetMathGrid::copyRow(row_type row)
 719 {
 720         addRow(row);
 721         for (col_type col = 0; col < ncols(); ++col)
 722                 cells_[(row + 1) * ncols() + col] = cells_[row * ncols() + col];
 723 }
 724
 725
 726 void InsetMathGrid::swapRow(row_type row)
 727 {
 728         if (nrows() == 1)
 729                 return;
 730         if (row + 1 == nrows())
 731                 --row;
 732         for (col_type col = 0; col < ncols(); ++col)
 733                 swap(cells_[row * ncols() + col], cells_[(row + 1) * ncols() + col]);
 734 }
 735
 736
 737 void InsetMathGrid::addCol(col_type newcol)
 738 {
 739         const col_type nc = ncols();
 740         const row_type nr = nrows();
 741         cells_type new_cells((nc + 1) * nr);
 742         vector<CellInfo> new_cellinfo((nc + 1) * nr);
 743
 744         for (row_type row = 0; row < nr; ++row)
 745                 for (col_type col = 0; col < nc; ++col) {
 746                         new_cells[row * (nc + 1) + col + (col > newcol)]
 747                                 = cells_[row * nc + col];
 748                         new_cellinfo[row * (nc + 1) + col + (col > newcol)]
 749                                 = cellinfo_[row * nc + col];
 750                 }
 751         swap(cells_, new_cells);
 752         swap(cellinfo_, new_cellinfo);
 753
 754         ColInfo inf;
 755         inf.skip_  = defaultColSpace(newcol);
 756         inf.align_ = defaultColAlign(newcol);
 757         colinfo_.insert(colinfo_.begin() + newcol, inf);
 758 }
 759
 760
 761 void InsetMathGrid::delCol(col_type col)
 762 {
 763         if (ncols() == 1)
 764                 return;
 765
 766         cells_type tmpcells;
 767         vector<CellInfo> tmpcellinfo;
 768         for (col_type i = 0; i < nargs(); ++i)
 769                 if (i % ncols() != col) {
 770                         tmpcells.push_back(cells_[i]);
 771                         tmpcellinfo.push_back(cellinfo_[i]);
 772                 }
 773         swap(cells_, tmpcells);
 774         swap(cellinfo_, tmpcellinfo);
 775
 776         colinfo_.erase(colinfo_.begin() + col);
 777 }
 778
 779
 780 void InsetMathGrid::copyCol(col_type col)
 781 {
 782         addCol(col);
 783         for (row_type row = 0; row < nrows(); ++row)
 784                 cells_[row * ncols() + col + 1] = cells_[row * ncols() + col];
 785 }
 786
 787
 788 void InsetMathGrid::swapCol(col_type col)
 789 {
 790         if (ncols() == 1)
 791                 return;
 792         if (col + 1 == ncols())
 793                 --col;
 794         for (row_type row = 0; row < nrows(); ++row)
 795                 swap(cells_[row * ncols() + col], cells_[row * ncols() + col + 1]);
 796 }
 797
 798
 799 int InsetMathGrid::cellXOffset(BufferView const & bv, idx_type idx) const
 800 {
 801         col_type c = col(idx);
 802         int x = colinfo_[c].offset_;
 803         char align = colinfo_[c].align_;
 804         Dimension const & celldim = cell(idx).dimension(bv);
 805         if (align == 'r' || align == 'R')
 806                 x += colinfo_[c].width_ - celldim.wid;
 807         if (align == 'c' || align == 'C')
 808                 x += (colinfo_[c].width_ - celldim.wid) / 2;
 809         return x;
 810 }
 811
 812
 813 int InsetMathGrid::cellYOffset(idx_type idx) const
 814 {
 815         return rowinfo_[row(idx)].offset_;
 816 }
 817
 818
 819 bool InsetMathGrid::idxUpDown(Cursor & cur, bool up) const
 820 {
 821         if (up) {
 822                 if (cur.row() == 0)
 823                         return false;
 824                 cur.idx() -= ncols();
 825         } else {
 826                 if (cur.row() + 1 >= nrows())
 827                         return false;
 828                 cur.idx() += ncols();
 829         }
 830         cur.pos() = cur.cell().x2pos(cur.x_target() - cur.cell().xo(cur.bv()));
 831         return true;
 832 }
 833
 834
 835 bool InsetMathGrid::idxLeft(Cursor & cur) const
 836 {
 837         // leave matrix if on the left hand edge
 838         if (cur.col() == 0)
 839                 return false;
 840         --cur.idx();
 841         cur.pos() = cur.lastpos();
 842         return true;
 843 }
 844
 845
 846 bool InsetMathGrid::idxRight(Cursor & cur) const
 847 {
 848         // leave matrix if on the right hand edge
 849         if (cur.col() + 1 == ncols())
 850                 return false;
 851         ++cur.idx();
 852         cur.pos() = 0;
 853         return true;
 854 }
 855
 856
 857 bool InsetMathGrid::idxFirst(Cursor & cur) const
 858 {
 859         switch (v_align_) {
 860                 case 't':
 861                         cur.idx() = 0;
 862                         break;
 863                 case 'b':
 864                         cur.idx() = (nrows() - 1) * ncols();
 865                         break;
 866                 default:
 867                         cur.idx() = ((nrows() - 1) / 2) * ncols();
 868         }
 869         cur.pos() = 0;
 870         return true;
 871 }
 872
 873
 874 bool InsetMathGrid::idxLast(Cursor & cur) const
 875 {
 876         switch (v_align_) {
 877                 case 't':
 878                         cur.idx() = ncols() - 1;
 879                         break;
 880                 case 'b':
 881                         cur.idx() = nargs() - 1;
 882                         break;
 883                 default:
 884                         cur.idx() = ((nrows() - 1) / 2 + 1) * ncols() - 1;
 885         }
 886         cur.pos() = cur.lastpos();
 887         return true;
 888 }
 889
 890
 891 bool InsetMathGrid::idxDelete(idx_type & idx)
 892 {
 893         // nothing to do if we have just one row
 894         if (nrows() == 1)
 895                 return false;
 896
 897         // nothing to do if we are in the middle of the last row of the inset
 898         if (idx + ncols() > nargs())
 899                 return false;
 900
 901         // try to delete entire sequence of ncols() empty cells if possible
 902         for (idx_type i = idx; i < idx + ncols(); ++i)
 903                 if (cell(i).size())
 904                         return false;
 905
 906         // move cells if necessary
 907         for (idx_type i = index(row(idx), 0); i < idx; ++i)
 908                 swap(cell(i), cell(i + ncols()));
 909
 910         delRow(row(idx));
 911
 912         if (idx >= nargs())
 913                 idx = nargs() - 1;
 914
 915         // undo effect of Ctrl-Tab (i.e. pull next cell)
 916         //if (idx + 1 != nargs())
 917         //      cell(idx).swap(cell(idx + 1));
 918
 919         // we handled the event..
 920         return true;
 921 }
 922
 923
 924 // reimplement old behaviour when pressing Delete in the last position
 925 // of a cell
 926 void InsetMathGrid::idxGlue(idx_type idx)
 927 {
 928         col_type c = col(idx);
 929         if (c + 1 == ncols()) {
 930                 if (row(idx) + 1 != nrows()) {
 931                         for (col_type cc = 0; cc < ncols(); ++cc)
 932                                 cell(idx).append(cell(idx + cc + 1));
 933                         delRow(row(idx) + 1);
 934                 }
 935         } else {
 936                 cell(idx).append(cell(idx + 1));
 937                 for (col_type cc = c + 2; cc < ncols(); ++cc)
 938                         cell(idx - c + cc - 1) = cell(idx - c + cc);
 939                 cell(idx - c + ncols() - 1).clear();
 940         }
 941 }
 942
 943
 944 InsetMathGrid::RowInfo const & InsetMathGrid::rowinfo(row_type row) const
 945 {
 946         return rowinfo_[row];
 947 }
 948
 949
 950 InsetMathGrid::RowInfo & InsetMathGrid::rowinfo(row_type row)
 951 {
 952         return rowinfo_[row];
 953 }
 954
 955
 956 bool InsetMathGrid::idxBetween(idx_type idx, idx_type from, idx_type to) const
 957 {
 958         row_type const ri = row(idx);
 959         row_type const r1 = min(row(from), row(to));
 960         row_type const r2 = max(row(from), row(to));
 961         col_type const ci = col(idx);
 962         col_type const c1 = min(col(from), col(to));
 963         col_type const c2 = max(col(from), col(to));
 964         return r1 <= ri && ri <= r2 && c1 <= ci && ci <= c2;
 965 }
 966
 967
 968
 969 void InsetMathGrid::normalize(NormalStream & os) const
 970 {
 971         os << "[grid ";
 972         for (row_type row = 0; row < nrows(); ++row) {
 973                 os << "[row ";
 974                 for (col_type col = 0; col < ncols(); ++col)
 975                         os << "[cell " << cell(index(row, col)) << ']';
 976                 os << ']';
 977         }
 978         os << ']';
 979 }
 980
 981
 982 void InsetMathGrid::mathmlize(MathStream & os) const
 983 {
 984         os << MTag("mtable");
 985         for (row_type row = 0; row < nrows(); ++row) {
 986                 os << MTag("mtr");
 987                 for (col_type col = 0; col < ncols(); ++col)
 988                         os << cell(index(row, col));
 989                 os << ETag("mtr");
 990         }
 991         os << ETag("mtable");
 992 }
 993
 994
 995 void InsetMathGrid::write(WriteStream & os) const
 996 {
 997         docstring eol;
 998         for (row_type row = 0; row < nrows(); ++row) {
 999                 os << verboseHLine(rowinfo_[row].lines_);
1000                 // don't write & and empty cells at end of line
1001                 col_type lastcol = 0;
1002                 bool emptyline = true;
1003                 for (col_type col = 0; col < ncols(); ++col)
1004                         if (!cell(index(row, col)).empty()) {
1005                                 lastcol = col + 1;
1006                                 emptyline = false;
1007                         }
1008                 for (col_type col = 0; col < lastcol; ++col)
1009                         os << cell(index(row, col)) << eocString(col, lastcol);
1010                 eol = eolString(row, emptyline, os.fragile());
1011                 os << eol;
1012                 // append newline only if line wasn't completely empty
1013                 // and this was not the last line in the grid
1014                 if (!emptyline && row + 1 < nrows())
1015                         os << "\n";
1016         }
1017         docstring const s = verboseHLine(rowinfo_[nrows()].lines_);
1018         if (!s.empty()) {
1019                 if (eol.empty()) {
1020                         if (os.fragile())
1021                                 os << "\\protect";
1022                         os << "\\\\";
1023                 }
1024                 os << s;
1025         }
1026 }
1027
1028
1029 int InsetMathGrid::colsep() const
1030 {
1031         return 6;
1032 }
1033
1034
1035 int InsetMathGrid::rowsep() const
1036 {
1037         return 6;
1038 }
1039
1040
1041 int InsetMathGrid::hlinesep() const
1042 {
1043         return 3;
1044 }
1045
1046
1047 int InsetMathGrid::vlinesep() const
1048 {
1049         return 3;
1050 }
1051
1052
1053 int InsetMathGrid::border() const
1054 {
1055         return 1;
1056 }
1057
1058
1059 void InsetMathGrid::splitCell(Cursor & cur)
1060 {
1061         if (cur.idx() == cur.lastidx())
1062                 return;
1063         MathData ar = cur.cell();
1064         ar.erase(0, cur.pos());
1065         cur.cell().erase(cur.pos(), cur.lastpos());
1066         ++cur.idx();
1067         cur.pos() = 0;
1068         cur.cell().insert(0, ar);
1069 }
1070
1071
1072 void InsetMathGrid::doDispatch(Cursor & cur, FuncRequest & cmd)
1073 {
1074         //lyxerr << "*** InsetMathGrid: request: " << cmd << endl;
1075         switch (cmd.action) {
1076
1077         // insert file functions
1078         case LFUN_LINE_DELETE:
1079                 // FIXME: We use recordUndoInset when a change reflects more
1080                 // than one cell, because recordUndo does not work for
1081                 // multiple cells. Unfortunately this puts the cursor in front
1082                 // of the inset after undo. This is (especilally for large
1083                 // grids) annoying.
1084                 recordUndoInset(cur);
1085                 //autocorrect_ = false;
1086                 //macroModeClose();
1087                 //if (selection_) {
1088                 //      selDel();
1089                 //      break;
1090                 //}
1091                 if (nrows() > 1)
1092                         delRow(cur.row());
1093                 if (cur.idx() > cur.lastidx())
1094                         cur.idx() = cur.lastidx();
1095                 if (cur.pos() > cur.lastpos())
1096                         cur.pos() = cur.lastpos();
1097                 break;
1098
1099         case LFUN_CELL_SPLIT:
1100                 recordUndo(cur);
1101                 splitCell(cur);
1102                 break;
1103
1104         case LFUN_CELL_BACKWARD:
1105                 // See below.
1106                 cur.selection() = false;
1107                 if (!idxPrev(cur)) {
1108                         cmd = FuncRequest(LFUN_FINISHED_LEFT);
1109                         cur.undispatched();
1110                 }
1111                 break;
1112
1113         case LFUN_CELL_FORWARD:
1114                 // Can't handle selection by additional 'shift' as this is
1115                 // hard bound to LFUN_CELL_BACKWARD
1116                 cur.selection() = false;
1117                 if (!idxNext(cur)) {
1118                         cmd = FuncRequest(LFUN_FINISHED_RIGHT);
1119                         cur.undispatched();
1120                 }
1121                 break;
1122
1123         case LFUN_BREAK_LINE: {
1124                 recordUndoInset(cur);
1125                 row_type const r = cur.row();
1126                 addRow(r);
1127
1128                 // split line
1129                 for (col_type c = col(cur.idx()) + 1; c < ncols(); ++c)
1130                         swap(cell(index(r, c)), cell(index(r + 1, c)));
1131
1132                 // split cell
1133                 splitCell(cur);
1134                 swap(cell(cur.idx()), cell(cur.idx() + ncols() - 1));
1135                 if (cur.idx() > 0)
1136                         --cur.idx();
1137                 cur.pos() = cur.lastpos();
1138
1139                 //mathcursor->normalize();
1140                 //cmd = FuncRequest(LFUN_FINISHED_LEFT);
1141                 break;
1142         }
1143
1144         case LFUN_TABULAR_FEATURE: {
1145                 recordUndoInset(cur);
1146                 //lyxerr << "handling tabular-feature " << to_utf8(cmd.argument()) << endl;
1147                 istringstream is(to_utf8(cmd.argument()));
1148                 string s;
1149                 is >> s;
1150                 if (s == "valign-top")
1151                         valign('t');
1152                 else if (s == "valign-middle")
1153                         valign('c');
1154                 else if (s == "valign-bottom")
1155                         valign('b');
1156                 else if (s == "align-left")
1157                         halign('l', cur.col());
1158                 else if (s == "align-right")
1159                         halign('r', cur.col());
1160                 else if (s == "align-center")
1161                         halign('c', cur.col());
1162                 else if (s == "append-row")
1163                         for (int i = 0, n = extractInt(is); i < n; ++i)
1164                                 addRow(cur.row());
1165                 else if (s == "delete-row") {
1166                         for (int i = 0, n = extractInt(is); i < n; ++i) {
1167                                 delRow(cur.row());
1168                                 if (cur.idx() >= nargs())
1169                                         cur.idx() -= ncols();
1170                         }
1171                         cur.pos() = 0; // trick, see below
1172                 }
1173                 else if (s == "copy-row") {
1174                         // Here (as later) we save the cursor col/row
1175                         // in order to restore it after operation.
1176                         row_type const r = cur.row();
1177                         col_type const c = cur.col();
1178                         for (int i = 0, n = extractInt(is); i < n; ++i)
1179                                 copyRow(cur.row());
1180                         cur.idx() = index(r, c);
1181                 }
1182                 else if (s == "swap-row") {
1183                         swapRow(cur.row());
1184                         // Trick to suppress same-idx-means-different-cell
1185                         // assertion crash:
1186                         cur.pos() = 0;
1187                 }
1188                 else if (s == "add-hline-above")
1189                         rowinfo_[cur.row()].lines_++;
1190                 else if (s == "add-hline-below")
1191                         rowinfo_[cur.row()+1].lines_++;
1192                 else if (s == "delete-hline-above")
1193                         rowinfo_[cur.row()].lines_--;
1194                 else if (s == "delete-hline-below")
1195                         rowinfo_[cur.row()+1].lines_--;
1196                 else if (s == "append-column") {
1197                         row_type const r = cur.row();
1198                         col_type const c = cur.col();
1199                         for (int i = 0, n = extractInt(is); i < n; ++i)
1200                                 addCol(cur.col());
1201                         cur.idx() = index(r, c);
1202                 }
1203                 else if (s == "delete-column") {
1204                         row_type const r = cur.row();
1205                         col_type const c = cur.col();
1206                         for (int i = 0, n = extractInt(is); i < n; ++i)
1207                                 delCol(col(cur.idx()));
1208                         cur.idx() = index(r, min(c, cur.ncols() - 1));
1209                         cur.pos() = 0; // trick, see above
1210                 }
1211                 else if (s == "copy-column") {
1212                         row_type const r = cur.row();
1213                         col_type const c = cur.col();
1214                         copyCol(cur.col());
1215                         cur.idx() = index(r, c);
1216                 }
1217                 else if (s == "swap-column") {
1218                         swapCol(cur.col());
1219                         cur.pos() = 0; // trick, see above
1220                 }
1221                 else if (s == "add-vline-left") {
1222                         colinfo_[cur.col()].lines_++;
1223                         if (!colinfo_[cur.col()].special_.empty())
1224                                 colinfo_[cur.col()].special_ += '|';
1225                 }
1226                 else if (s == "add-vline-right") {
1227                         colinfo_[cur.col()+1].lines_++;
1228                         if (!colinfo_[cur.col()+1].special_.empty())
1229                                 colinfo_[cur.col()+1].special_.insert(0, 1, '|');
1230                 }
1231                 else if (s == "delete-vline-left") {
1232                         colinfo_[cur.col()].lines_--;
1233                         docstring & special = colinfo_[cur.col()].special_;
1234                         if (!special.empty()) {
1235                                 docstring::size_type i = special.rfind('|');
1236                                 BOOST_ASSERT(i != docstring::npos);
1237                                 special.erase(i, 1);
1238                         }
1239                 }
1240                 else if (s == "delete-vline-right") {
1241                         colinfo_[cur.col()+1].lines_--;
1242                         docstring & special = colinfo_[cur.col()+1].special_;
1243                         if (!special.empty()) {
1244                                 docstring::size_type i = special.find('|');
1245                                 BOOST_ASSERT(i != docstring::npos);
1246                                 special.erase(i, 1);
1247                         }
1248                 }
1249                 else {
1250                         cur.undispatched();
1251                         break;
1252                 }
1253                 lyxerr << "returning FINISHED_LEFT" << endl;
1254                 break;
1255         }
1256
1257         case LFUN_PASTE: {
1258                 cur.message(_("Paste"));
1259                 cap::replaceSelection(cur);
1260                 docstring topaste;
1261                 if (cmd.argument().empty() && !theClipboard().isInternal())
1262                         topaste = theClipboard().getAsText();
1263                 else {
1264                         idocstringstream is(cmd.argument());
1265                         int n = 0;
1266                         is >> n;
1267                         topaste = cap::getSelection(cur.buffer(), n);
1268                 }
1269                 InsetMathGrid grid(1, 1);
1270                 if (!topaste.empty())
1271                         mathed_parse_normal(grid, topaste);
1272
1273                 if (grid.nargs() == 1) {
1274                         // single cell/part of cell
1275                         recordUndo(cur);
1276                         cur.cell().insert(cur.pos(), grid.cell(0));
1277                         cur.pos() += grid.cell(0).size();
1278                 } else {
1279                         // multiple cells
1280                         recordUndoInset(cur);
1281                         col_type const numcols =
1282                                 min(grid.ncols(), ncols() - col(cur.idx()));
1283                         row_type const numrows =
1284                                 min(grid.nrows(), nrows() - cur.row());
1285                         for (row_type r = 0; r < numrows; ++r) {
1286                                 for (col_type c = 0; c < numcols; ++c) {
1287                                         idx_type i = index(r + cur.row(), c + col(cur.idx()));
1288                                         cell(i).insert(0, grid.cell(grid.index(r, c)));
1289                                 }
1290                                 // append the left over horizontal cells to the last column
1291                                 idx_type i = index(r + cur.row(), ncols() - 1);
1292                                 for (InsetMath::col_type c = numcols; c < grid.ncols(); ++c)
1293                                         cell(i).append(grid.cell(grid.index(r, c)));
1294                         }
1295                         // append the left over vertical cells to the last _cell_
1296                         idx_type i = nargs() - 1;
1297                         for (row_type r = numrows; r < grid.nrows(); ++r)
1298                                 for (col_type c = 0; c < grid.ncols(); ++c)
1299                                         cell(i).append(grid.cell(grid.index(r, c)));
1300                 }
1301                 cur.clearSelection(); // bug 393
1302                 finishUndo();
1303                 break;
1304         }
1305
1306         case LFUN_LINE_BEGIN_SELECT:
1307         case LFUN_LINE_BEGIN:
1308         case LFUN_WORD_BACKWARD_SELECT:
1309         case LFUN_WORD_BACKWARD:
1310                 cur.selHandle(cmd.action == LFUN_WORD_BACKWARD_SELECT ||
1311                                 cmd.action == LFUN_LINE_BEGIN_SELECT);
1312                 cur.macroModeClose();
1313                 if (cur.pos() != 0) {
1314                         cur.pos() = 0;
1315                 } else if (cur.idx() % cur.ncols() != 0) {
1316                         cur.idx() -= cur.idx() % cur.ncols();
1317                         cur.pos() = 0;
1318                 } else if (cur.idx() != 0) {
1319                         cur.idx() = 0;
1320                         cur.pos() = 0;
1321                 } else {
1322                         cmd = FuncRequest(LFUN_FINISHED_LEFT);
1323                         cur.undispatched();
1324                 }
1325                 break;
1326
1327         case LFUN_WORD_FORWARD_SELECT:
1328         case LFUN_WORD_FORWARD:
1329         case LFUN_LINE_END_SELECT:
1330         case LFUN_LINE_END:
1331                 cur.selHandle(cmd.action == LFUN_WORD_FORWARD_SELECT ||
1332                                 cmd.action == LFUN_LINE_END_SELECT);
1333                 cur.macroModeClose();
1334                 cur.clearTargetX();
1335                 if (cur.pos() != cur.lastpos()) {
1336                         cur.pos() = cur.lastpos();
1337                 } else if ((cur.idx() + 1) % cur.ncols() != 0) {
1338                         cur.idx() += cur.ncols() - 1 - cur.idx() % cur.ncols();
1339                         cur.pos() = cur.lastpos();
1340                 } else if (cur.idx() != cur.lastidx()) {
1341                         cur.idx() = cur.lastidx();
1342                         cur.pos() = cur.lastpos();
1343                 } else {
1344                         cmd = FuncRequest(LFUN_FINISHED_RIGHT);
1345                         cur.undispatched();
1346                 }
1347                 break;
1348
1349         default:
1350                 InsetMathNest::doDispatch(cur, cmd);
1351         }
1352 }
1353
1354
1355 bool InsetMathGrid::getStatus(Cursor & cur, FuncRequest const & cmd,
1356                 FuncStatus & status) const
1357 {
1358         switch (cmd.action) {
1359         case LFUN_TABULAR_FEATURE: {
1360                 string const s = to_utf8(cmd.argument());
1361                 if (nrows() <= 1 && (s == "delete-row" || s == "swap-row")) {
1362                         status.enabled(false);
1363                         status.message(from_utf8(N_("Only one row")));
1364                         return true;
1365                 }
1366                 if (ncols() <= 1 &&
1367                     (s == "delete-column" || s == "swap-column")) {
1368                         status.enabled(false);
1369                         status.message(from_utf8(N_("Only one column")));
1370                         return true;
1371                 }
1372                 if ((rowinfo_[cur.row()].lines_ == 0 &&
1373                      s == "delete-hline-above") ||
1374                     (rowinfo_[cur.row() + 1].lines_ == 0 &&
1375                      s == "delete-hline-below")) {
1376                         status.enabled(false);
1377                         status.message(from_utf8(N_("No hline to delete")));
1378                         return true;
1379                 }
1380
1381                 if ((colinfo_[cur.col()].lines_ == 0 &&
1382                      s == "delete-vline-left") ||
1383                     (colinfo_[cur.col() + 1].lines_ == 0 &&
1384                      s == "delete-vline-right")) {
1385                         status.enabled(false);
1386                         status.message(from_utf8(N_("No vline to delete")));
1387                         return true;
1388                 }
1389                 if (s == "valign-top" || s == "valign-middle" ||
1390                     s == "valign-bottom" || s == "align-left" ||
1391                     s == "align-right" || s == "align-center" ||
1392                     s == "append-row" || s == "delete-row" ||
1393                     s == "copy-row" || s == "swap-row" ||
1394                     s == "add-hline-above" || s == "add-hline-below" ||
1395                     s == "delete-hline-above" || s == "delete-hline-below" ||
1396                     s == "append-column" || s == "delete-column" ||
1397                     s == "copy-column" || s == "swap-column" ||
1398                     s == "add-vline-left" || s == "add-vline-right" ||
1399                     s == "delete-vline-left" || s == "delete-vline-right")
1400                         status.enabled(true);
1401                 else {
1402                         status.enabled(false);
1403                         status.message(bformat(
1404                                 from_utf8(N_("Unknown tabular feature '%1$s'")), lyx::from_ascii(s)));
1405                 }
1406
1407                 status.setOnOff((s == "align-left" && halign(cur.col()) == 'l')
1408                            || (s == "align-right"   && halign(cur.col()) == 'r')
1409                            || (s == "align-center"  && halign(cur.col()) == 'c')
1410                            || (s == "valign-top"    && valign() == 't')
1411                            || (s == "valign-bottom" && valign() == 'b')
1412                            || (s == "valign-middle" && valign() == 'm'));
1413
1414 #if 0
1415                 // FIXME: What did this code do?
1416                 // Please check whether it is still needed!
1417                 // should be more precise
1418                 if (v_align_ == '\0') {
1419                         status.enable(true);
1420                         break;
1421                 }
1422                 if (cmd.argument().empty()) {
1423                         status.enable(false);
1424                         break;
1425                 }
1426                 if (!support::contains("tcb", cmd.argument()[0])) {
1427                         status.enable(false);
1428                         break;
1429                 }
1430                 status.setOnOff(cmd.argument()[0] == v_align_);
1431                 status.enabled(true);
1432 #endif
1433                 return true;
1434         }
1435
1436         case LFUN_CELL_SPLIT:
1437                 status.enabled(true);
1438                 return true;
1439
1440         case LFUN_CELL_BACKWARD:
1441         case LFUN_CELL_FORWARD:
1442                 status.enabled(true);
1443                 return true;
1444
1445         default:
1446                 return InsetMathNest::getStatus(cur, cmd, status);
1447         }
1448 }
1449
1450
1451 } // namespace lyx