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