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) const
 369 {
 370         // let the cells adjust themselves
 371         InsetMathNest::metrics(mi);
 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                         MathData const & c = cell(index(row, col));
 379                         asc  = max(asc,  c.ascent());
 380                         desc = max(desc, c.descent());
 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)).width());
 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 }
 506
 507
 508 void InsetMathGrid::metrics(MetricsInfo & mi, Dimension & dim) const
 509 {
 510         metrics(mi);
 511         dim = dim_;
 512 }
 513
 514
 515 void InsetMathGrid::draw(PainterInfo & pi, int x, int y) const
 516 {
 517         drawWithMargin(pi, x, y, 0, 0);
 518 }
 519
 520 void InsetMathGrid::drawWithMargin(PainterInfo & pi, int x, int y,
 521         int lmargin, int rmargin) const
 522 {
 523         for (idx_type idx = 0; idx < nargs(); ++idx)
 524                 cell(idx).draw(pi, x + lmargin + cellXOffset(idx),
 525                         y + cellYOffset(idx));
 526
 527         for (row_type row = 0; row <= nrows(); ++row)
 528                 for (unsigned int i = 0; i < rowinfo_[row].lines_; ++i) {
 529                         int yy = y + rowinfo_[row].offset_ - rowinfo_[row].ascent_
 530                                 - i * hlinesep() - hlinesep()/2 - rowsep()/2;
 531                         pi.pain.line(x + lmargin + 1, yy,
 532                                      x + dim_.width() - rmargin - 1, yy,
 533                                      Color::foreground);
 534                 }
 535
 536         for (col_type col = 0; col <= ncols(); ++col)
 537                 for (unsigned int i = 0; i < colinfo_[col].lines_; ++i) {
 538                         int xx = x + lmargin + colinfo_[col].offset_
 539                                 - i * vlinesep() - vlinesep()/2 - colsep()/2;
 540                         pi.pain.line(xx, y - dim_.ascent() + 1,
 541                                      xx, y + dim_.descent() - 1,
 542                                      Color::foreground);
 543                 }
 544         drawMarkers2(pi, x, y);
 545 }
 546
 547
 548 void InsetMathGrid::metricsT(TextMetricsInfo const & mi, Dimension & dim) const
 549 {
 550         // let the cells adjust themselves
 551         //InsetMathNest::metrics(mi);
 552         for (idx_type i = 0; i < nargs(); ++i)
 553                 cell(i).metricsT(mi, dim);
 554
 555         // compute absolute sizes of vertical structure
 556         for (row_type row = 0; row < nrows(); ++row) {
 557                 int asc  = 0;
 558                 int desc = 0;
 559                 for (col_type col = 0; col < ncols(); ++col) {
 560                         MathData const & c = cell(index(row, col));
 561                         asc  = max(asc,  c.ascent());
 562                         desc = max(desc, c.descent());
 563                 }
 564                 rowinfo_[row].ascent_  = asc;
 565                 rowinfo_[row].descent_ = desc;
 566         }
 567         //rowinfo_[0].ascent_       += hlinesep() * rowinfo_[0].lines_;
 568         rowinfo_[nrows()].ascent_  = 0;
 569         rowinfo_[nrows()].descent_ = 0;
 570
 571         // compute vertical offsets
 572         rowinfo_[0].offset_ = 0;
 573         for (row_type row = 1; row <= nrows(); ++row) {
 574                 rowinfo_[row].offset_  =
 575                         rowinfo_[row - 1].offset_  +
 576                         rowinfo_[row - 1].descent_ +
 577                         //rowinfo_[row - 1].skipPixels() +
 578                         1 + //rowsep() +
 579                         //rowinfo_[row].lines_ * hlinesep() +
 580                         rowinfo_[row].ascent_;
 581         }
 582
 583         // adjust vertical offset
 584         int h = 0;
 585         switch (v_align_) {
 586                 case 't':
 587                         h = 0;
 588                         break;
 589                 case 'b':
 590                         h = rowinfo_[nrows() - 1].offset_;
 591                         break;
 592                 default:
 593                         h = rowinfo_[nrows() - 1].offset_ / 2;
 594         }
 595         for (row_type row = 0; row <= nrows(); ++row)
 596                 rowinfo_[row].offset_ -= h;
 597
 598
 599         // compute absolute sizes of horizontal structure
 600         for (col_type col = 0; col < ncols(); ++col) {
 601                 int wid = 0;
 602                 for (row_type row = 0; row < nrows(); ++row)
 603                         wid = max(wid, cell(index(row, col)).width());
 604                 colinfo_[col].width_ = wid;
 605         }
 606         colinfo_[ncols()].width_  = 0;
 607
 608         // compute horizontal offsets
 609         colinfo_[0].offset_ = border();
 610         for (col_type col = 1; col <= ncols(); ++col) {
 611                 colinfo_[col].offset_ =
 612                         colinfo_[col - 1].offset_ +
 613                         colinfo_[col - 1].width_ +
 614                         colinfo_[col - 1].skip_ +
 615                         1 ; //colsep() +
 616                         //colinfo_[col].lines_ * vlinesep();
 617         }
 618
 619
 620         dim.wid  =  colinfo_[ncols() - 1].offset_
 621                        + colinfo_[ncols() - 1].width_
 622                  //+ vlinesep() * colinfo_[ncols()].lines_
 623                        + 2;
 624
 625         dim.asc  = -rowinfo_[0].offset_
 626                        + rowinfo_[0].ascent_
 627                  //+ hlinesep() * rowinfo_[0].lines_
 628                        + 1;
 629
 630         dim.des  =  rowinfo_[nrows() - 1].offset_
 631                        + rowinfo_[nrows() - 1].descent_
 632                  //+ hlinesep() * rowinfo_[nrows()].lines_
 633                        + 1;
 634 }
 635
 636
 637 void InsetMathGrid::drawT(TextPainter & pain, int x, int y) const
 638 {
 639         for (idx_type idx = 0; idx < nargs(); ++idx)
 640                 cell(idx).drawT(pain, x + cellXOffset(idx), y + cellYOffset(idx));
 641 }
 642
 643
 644 docstring InsetMathGrid::eolString(row_type row, bool emptyline, bool fragile) const
 645 {
 646         docstring eol;
 647
 648         if (!rowinfo_[row].crskip_.zero())
 649                 eol += '[' + from_utf8(rowinfo_[row].crskip_.asLatexString()) + ']';
 650         else if(!rowinfo_[row].allow_pagebreak_)
 651                 eol += '*';
 652
 653         // make sure an upcoming '[' does not break anything
 654         if (row + 1 < nrows()) {
 655                 MathData const & c = cell(index(row + 1, 0));
 656                 if (c.size() && c.front()->getChar() == '[')
 657                         //eol += "[0pt]";
 658                         eol += "{}";
 659         }
 660
 661         // only add \\ if necessary
 662         if (eol.empty() && row + 1 == nrows() && (nrows() == 1 || !emptyline))
 663                 return docstring();
 664
 665         return (fragile ? "\\protect\\\\" : "\\\\") + eol;
 666 }
 667
 668
 669 docstring InsetMathGrid::eocString(col_type col, col_type lastcol) const
 670 {
 671         if (col + 1 == lastcol)
 672                 return docstring();
 673         return from_ascii(" & ");
 674 }
 675
 676
 677 void InsetMathGrid::addRow(row_type row)
 678 {
 679         rowinfo_.insert(rowinfo_.begin() + row + 1, RowInfo());
 680         cells_.insert
 681                 (cells_.begin() + (row + 1) * ncols(), ncols(), MathData());
 682         cellinfo_.insert
 683                 (cellinfo_.begin() + (row + 1) * ncols(), ncols(), CellInfo());
 684 }
 685
 686
 687 void InsetMathGrid::appendRow()
 688 {
 689         rowinfo_.push_back(RowInfo());
 690         //cells_.insert(cells_.end(), ncols(), MathData());
 691         for (col_type col = 0; col < ncols(); ++col) {
 692                 cells_.push_back(cells_type::value_type());
 693                 cellinfo_.push_back(CellInfo());
 694         }
 695 }
 696
 697
 698 void InsetMathGrid::delRow(row_type row)
 699 {
 700         if (nrows() == 1)
 701                 return;
 702
 703         cells_type::iterator it = cells_.begin() + row * ncols();
 704         cells_.erase(it, it + ncols());
 705
 706         vector<CellInfo>::iterator jt = cellinfo_.begin() + row * ncols();
 707         cellinfo_.erase(jt, jt + ncols());
 708
 709         rowinfo_.erase(rowinfo_.begin() + row);
 710 }
 711
 712
 713 void InsetMathGrid::copyRow(row_type row)
 714 {
 715         addRow(row);
 716         for (col_type col = 0; col < ncols(); ++col)
 717                 cells_[(row + 1) * ncols() + col] = cells_[row * ncols() + col];
 718 }
 719
 720
 721 void InsetMathGrid::swapRow(row_type row)
 722 {
 723         if (nrows() == 1)
 724                 return;
 725         if (row + 1 == nrows())
 726                 --row;
 727         for (col_type col = 0; col < ncols(); ++col)
 728                 swap(cells_[row * ncols() + col], cells_[(row + 1) * ncols() + col]);
 729 }
 730
 731
 732 void InsetMathGrid::addCol(col_type newcol)
 733 {
 734         const col_type nc = ncols();
 735         const row_type nr = nrows();
 736         cells_type new_cells((nc + 1) * nr);
 737         vector<CellInfo> new_cellinfo((nc + 1) * nr);
 738
 739         for (row_type row = 0; row < nr; ++row)
 740                 for (col_type col = 0; col < nc; ++col) {
 741                         new_cells[row * (nc + 1) + col + (col > newcol)]
 742                                 = cells_[row * nc + col];
 743                         new_cellinfo[row * (nc + 1) + col + (col > newcol)]
 744                                 = cellinfo_[row * nc + col];
 745                 }
 746         swap(cells_, new_cells);
 747         swap(cellinfo_, new_cellinfo);
 748
 749         ColInfo inf;
 750         inf.skip_  = defaultColSpace(newcol);
 751         inf.align_ = defaultColAlign(newcol);
 752         colinfo_.insert(colinfo_.begin() + newcol, inf);
 753 }
 754
 755
 756 void InsetMathGrid::delCol(col_type col)
 757 {
 758         if (ncols() == 1)
 759                 return;
 760
 761         cells_type tmpcells;
 762         vector<CellInfo> tmpcellinfo;
 763         for (col_type i = 0; i < nargs(); ++i)
 764                 if (i % ncols() != col) {
 765                         tmpcells.push_back(cells_[i]);
 766                         tmpcellinfo.push_back(cellinfo_[i]);
 767                 }
 768         swap(cells_, tmpcells);
 769         swap(cellinfo_, tmpcellinfo);
 770
 771         colinfo_.erase(colinfo_.begin() + col);
 772 }
 773
 774
 775 void InsetMathGrid::copyCol(col_type col)
 776 {
 777         addCol(col);
 778         for (row_type row = 0; row < nrows(); ++row)
 779                 cells_[row * ncols() + col + 1] = cells_[row * ncols() + col];
 780 }
 781
 782
 783 void InsetMathGrid::swapCol(col_type col)
 784 {
 785         if (ncols() == 1)
 786                 return;
 787         if (col + 1 == ncols())
 788                 --col;
 789         for (row_type row = 0; row < nrows(); ++row)
 790                 swap(cells_[row * ncols() + col], cells_[row * ncols() + col + 1]);
 791 }
 792
 793
 794 int InsetMathGrid::cellXOffset(idx_type idx) const
 795 {
 796         col_type c = col(idx);
 797         int x = colinfo_[c].offset_;
 798         char align = colinfo_[c].align_;
 799         if (align == 'r' || align == 'R')
 800                 x += colinfo_[c].width_ - cell(idx).width();
 801         if (align == 'c' || align == 'C')
 802                 x += (colinfo_[c].width_ - cell(idx).width()) / 2;
 803         return x;
 804 }
 805
 806
 807 int InsetMathGrid::cellYOffset(idx_type idx) const
 808 {
 809         return rowinfo_[row(idx)].offset_;
 810 }
 811
 812
 813 bool InsetMathGrid::idxUpDown(Cursor & cur, bool up) const
 814 {
 815         if (up) {
 816                 if (cur.row() == 0)
 817                         return false;
 818                 cur.idx() -= ncols();
 819         } else {
 820                 if (cur.row() + 1 >= nrows())
 821                         return false;
 822                 cur.idx() += ncols();
 823         }
 824         cur.pos() = cur.cell().x2pos(cur.x_target() - cur.cell().xo(cur.bv()));
 825         return true;
 826 }
 827
 828
 829 bool InsetMathGrid::idxLeft(Cursor & cur) const
 830 {
 831         // leave matrix if on the left hand edge
 832         if (cur.col() == 0)
 833                 return false;
 834         --cur.idx();
 835         cur.pos() = cur.lastpos();
 836         return true;
 837 }
 838
 839
 840 bool InsetMathGrid::idxRight(Cursor & cur) const
 841 {
 842         // leave matrix if on the right hand edge
 843         if (cur.col() + 1 == ncols())
 844                 return false;
 845         ++cur.idx();
 846         cur.pos() = 0;
 847         return true;
 848 }
 849
 850
 851 bool InsetMathGrid::idxFirst(Cursor & cur) const
 852 {
 853         switch (v_align_) {
 854                 case 't':
 855                         cur.idx() = 0;
 856                         break;
 857                 case 'b':
 858                         cur.idx() = (nrows() - 1) * ncols();
 859                         break;
 860                 default:
 861                         cur.idx() = ((nrows() - 1) / 2) * ncols();
 862         }
 863         cur.pos() = 0;
 864         return true;
 865 }
 866
 867
 868 bool InsetMathGrid::idxLast(Cursor & cur) const
 869 {
 870         switch (v_align_) {
 871                 case 't':
 872                         cur.idx() = ncols() - 1;
 873                         break;
 874                 case 'b':
 875                         cur.idx() = nargs() - 1;
 876                         break;
 877                 default:
 878                         cur.idx() = ((nrows() - 1) / 2 + 1) * ncols() - 1;
 879         }
 880         cur.pos() = cur.lastpos();
 881         return true;
 882 }
 883
 884
 885 bool InsetMathGrid::idxDelete(idx_type & idx)
 886 {
 887         // nothing to do if we have just one row
 888         if (nrows() == 1)
 889                 return false;
 890
 891         // nothing to do if we are in the middle of the last row of the inset
 892         if (idx + ncols() > nargs())
 893                 return false;
 894
 895         // try to delete entire sequence of ncols() empty cells if possible
 896         for (idx_type i = idx; i < idx + ncols(); ++i)
 897                 if (cell(i).size())
 898                         return false;
 899
 900         // move cells if necessary
 901         for (idx_type i = index(row(idx), 0); i < idx; ++i)
 902                 swap(cell(i), cell(i + ncols()));
 903
 904         delRow(row(idx));
 905
 906         if (idx >= nargs())
 907                 idx = nargs() - 1;
 908
 909         // undo effect of Ctrl-Tab (i.e. pull next cell)
 910         //if (idx + 1 != nargs())
 911         //      cell(idx).swap(cell(idx + 1));
 912
 913         // we handled the event..
 914         return true;
 915 }
 916
 917
 918 // reimplement old behaviour when pressing Delete in the last position
 919 // of a cell
 920 void InsetMathGrid::idxGlue(idx_type idx)
 921 {
 922         col_type c = col(idx);
 923         if (c + 1 == ncols()) {
 924                 if (row(idx) + 1 != nrows()) {
 925                         for (col_type cc = 0; cc < ncols(); ++cc)
 926                                 cell(idx).append(cell(idx + cc + 1));
 927                         delRow(row(idx) + 1);
 928                 }
 929         } else {
 930                 cell(idx).append(cell(idx + 1));
 931                 for (col_type cc = c + 2; cc < ncols(); ++cc)
 932                         cell(idx - c + cc - 1) = cell(idx - c + cc);
 933                 cell(idx - c + ncols() - 1).clear();
 934         }
 935 }
 936
 937
 938 InsetMathGrid::RowInfo const & InsetMathGrid::rowinfo(row_type row) const
 939 {
 940         return rowinfo_[row];
 941 }
 942
 943
 944 InsetMathGrid::RowInfo & InsetMathGrid::rowinfo(row_type row)
 945 {
 946         return rowinfo_[row];
 947 }
 948
 949
 950 bool InsetMathGrid::idxBetween(idx_type idx, idx_type from, idx_type to) const
 951 {
 952         row_type const ri = row(idx);
 953         row_type const r1 = min(row(from), row(to));
 954         row_type const r2 = max(row(from), row(to));
 955         col_type const ci = col(idx);
 956         col_type const c1 = min(col(from), col(to));
 957         col_type const c2 = max(col(from), col(to));
 958         return r1 <= ri && ri <= r2 && c1 <= ci && ci <= c2;
 959 }
 960
 961
 962
 963 void InsetMathGrid::normalize(NormalStream & os) const
 964 {
 965         os << "[grid ";
 966         for (row_type row = 0; row < nrows(); ++row) {
 967                 os << "[row ";
 968                 for (col_type col = 0; col < ncols(); ++col)
 969                         os << "[cell " << cell(index(row, col)) << ']';
 970                 os << ']';
 971         }
 972         os << ']';
 973 }
 974
 975
 976 void InsetMathGrid::mathmlize(MathStream & os) const
 977 {
 978         os << MTag("mtable");
 979         for (row_type row = 0; row < nrows(); ++row) {
 980                 os << MTag("mtr");
 981                 for (col_type col = 0; col < ncols(); ++col)
 982                         os << cell(index(row, col));
 983                 os << ETag("mtr");
 984         }
 985         os << ETag("mtable");
 986 }
 987
 988
 989 void InsetMathGrid::write(WriteStream & os) const
 990 {
 991         docstring eol;
 992         for (row_type row = 0; row < nrows(); ++row) {
 993                 os << verboseHLine(rowinfo_[row].lines_);
 994                 // don't write & and empty cells at end of line
 995                 col_type lastcol = 0;
 996                 bool emptyline = true;
 997                 for (col_type col = 0; col < ncols(); ++col)
 998                         if (!cell(index(row, col)).empty()) {
 999                                 lastcol = col + 1;
1000                                 emptyline = false;
1001                         }
1002                 for (col_type col = 0; col < lastcol; ++col)
1003                         os << cell(index(row, col)) << eocString(col, lastcol);
1004                 eol = eolString(row, emptyline, os.fragile());
1005                 os << eol;
1006                 // append newline only if line wasn't completely empty
1007                 // and this was not the last line in the grid
1008                 if (!emptyline && row + 1 < nrows())
1009                         os << "\n";
1010         }
1011         docstring const s = verboseHLine(rowinfo_[nrows()].lines_);
1012         if (!s.empty()) {
1013                 if (eol.empty()) {
1014                         if (os.fragile())
1015                                 os << "\\protect";
1016                         os << "\\\\";
1017                 }
1018                 os << s;
1019         }
1020 }
1021
1022
1023 int InsetMathGrid::colsep() const
1024 {
1025         return 6;
1026 }
1027
1028
1029 int InsetMathGrid::rowsep() const
1030 {
1031         return 6;
1032 }
1033
1034
1035 int InsetMathGrid::hlinesep() const
1036 {
1037         return 3;
1038 }
1039
1040
1041 int InsetMathGrid::vlinesep() const
1042 {
1043         return 3;
1044 }
1045
1046
1047 int InsetMathGrid::border() const
1048 {
1049         return 1;
1050 }
1051
1052
1053 void InsetMathGrid::splitCell(Cursor & cur)
1054 {
1055         if (cur.idx() == cur.lastidx())
1056                 return;
1057         MathData ar = cur.cell();
1058         ar.erase(0, cur.pos());
1059         cur.cell().erase(cur.pos(), cur.lastpos());
1060         ++cur.idx();
1061         cur.pos() = 0;
1062         cur.cell().insert(0, ar);
1063 }
1064
1065
1066 void InsetMathGrid::doDispatch(Cursor & cur, FuncRequest & cmd)
1067 {
1068         //lyxerr << "*** InsetMathGrid: request: " << cmd << endl;
1069         switch (cmd.action) {
1070
1071         // insert file functions
1072         case LFUN_LINE_DELETE:
1073                 // FIXME: We use recordUndoInset when a change reflects more
1074                 // than one cell, because recordUndo does not work for
1075                 // multiple cells. Unfortunately this puts the cursor in front
1076                 // of the inset after undo. This is (especilally for large
1077                 // grids) annoying.
1078                 recordUndoInset(cur);
1079                 //autocorrect_ = false;
1080                 //macroModeClose();
1081                 //if (selection_) {
1082                 //      selDel();
1083                 //      break;
1084                 //}
1085                 if (nrows() > 1)
1086                         delRow(cur.row());
1087                 if (cur.idx() > cur.lastidx())
1088                         cur.idx() = cur.lastidx();
1089                 if (cur.pos() > cur.lastpos())
1090                         cur.pos() = cur.lastpos();
1091                 break;
1092
1093         case LFUN_CELL_SPLIT:
1094                 recordUndo(cur);
1095                 splitCell(cur);
1096                 break;
1097
1098         case LFUN_CELL_BACKWARD:
1099                 // See below.
1100                 cur.selection() = false;
1101                 if (!idxPrev(cur)) {
1102                         cmd = FuncRequest(LFUN_FINISHED_LEFT);
1103                         cur.undispatched();
1104                 }
1105                 break;
1106
1107         case LFUN_CELL_FORWARD:
1108                 // Can't handle selection by additional 'shift' as this is
1109                 // hard bound to LFUN_CELL_BACKWARD
1110                 cur.selection() = false;
1111                 if (!idxNext(cur)) {
1112                         cmd = FuncRequest(LFUN_FINISHED_RIGHT);
1113                         cur.undispatched();
1114                 }
1115                 break;
1116
1117         case LFUN_BREAK_LINE: {
1118                 recordUndoInset(cur);
1119                 row_type const r = cur.row();
1120                 addRow(r);
1121
1122                 // split line
1123                 for (col_type c = col(cur.idx()) + 1; c < ncols(); ++c)
1124                         swap(cell(index(r, c)), cell(index(r + 1, c)));
1125
1126                 // split cell
1127                 splitCell(cur);
1128                 swap(cell(cur.idx()), cell(cur.idx() + ncols() - 1));
1129                 if (cur.idx() > 0)
1130                         --cur.idx();
1131                 cur.pos() = cur.lastpos();
1132
1133                 //mathcursor->normalize();
1134                 //cmd = FuncRequest(LFUN_FINISHED_LEFT);
1135                 break;
1136         }
1137
1138         case LFUN_TABULAR_FEATURE: {
1139                 recordUndoInset(cur);
1140                 //lyxerr << "handling tabular-feature " << to_utf8(cmd.argument()) << endl;
1141                 istringstream is(to_utf8(cmd.argument()));
1142                 string s;
1143                 is >> s;
1144                 if (s == "valign-top")
1145                         valign('t');
1146                 else if (s == "valign-middle")
1147                         valign('c');
1148                 else if (s == "valign-bottom")
1149                         valign('b');
1150                 else if (s == "align-left")
1151                         halign('l', cur.col());
1152                 else if (s == "align-right")
1153                         halign('r', cur.col());
1154                 else if (s == "align-center")
1155                         halign('c', cur.col());
1156                 else if (s == "append-row")
1157                         for (int i = 0, n = extractInt(is); i < n; ++i)
1158                                 addRow(cur.row());
1159                 else if (s == "delete-row") {
1160                         for (int i = 0, n = extractInt(is); i < n; ++i) {
1161                                 delRow(cur.row());
1162                                 if (cur.idx() >= nargs())
1163                                         cur.idx() -= ncols();
1164                         }
1165                         cur.pos() = 0; // trick, see below
1166                 }
1167                 else if (s == "copy-row") {
1168                         // Here (as later) we save the cursor col/row
1169                         // in order to restore it after operation.
1170                         row_type const r = cur.row();
1171                         col_type const c = cur.col();
1172                         for (int i = 0, n = extractInt(is); i < n; ++i)
1173                                 copyRow(cur.row());
1174                         cur.idx() = index(r, c);
1175                 }
1176                 else if (s == "swap-row") {
1177                         swapRow(cur.row());
1178                         // Trick to suppress same-idx-means-different-cell
1179                         // assertion crash:
1180                         cur.pos() = 0;
1181                 }
1182                 else if (s == "add-hline-above")
1183                         rowinfo_[cur.row()].lines_++;
1184                 else if (s == "add-hline-below")
1185                         rowinfo_[cur.row()+1].lines_++;
1186                 else if (s == "delete-hline-above")
1187                         rowinfo_[cur.row()].lines_--;
1188                 else if (s == "delete-hline-below")
1189                         rowinfo_[cur.row()+1].lines_--;
1190                 else if (s == "append-column") {
1191                         row_type const r = cur.row();
1192                         col_type const c = cur.col();
1193                         for (int i = 0, n = extractInt(is); i < n; ++i)
1194                                 addCol(cur.col());
1195                         cur.idx() = index(r, c);
1196                 }
1197                 else if (s == "delete-column") {
1198                         row_type const r = cur.row();
1199                         col_type const c = cur.col();
1200                         for (int i = 0, n = extractInt(is); i < n; ++i)
1201                                 delCol(col(cur.idx()));
1202                         cur.idx() = index(r, min(c, cur.ncols() - 1));
1203                         cur.pos() = 0; // trick, see above
1204                 }
1205                 else if (s == "copy-column") {
1206                         row_type const r = cur.row();
1207                         col_type const c = cur.col();
1208                         copyCol(cur.col());
1209                         cur.idx() = index(r, c);
1210                 }
1211                 else if (s == "swap-column") {
1212                         swapCol(cur.col());
1213                         cur.pos() = 0; // trick, see above
1214                 }
1215                 else if (s == "add-vline-left") {
1216                         colinfo_[cur.col()].lines_++;
1217                         if (!colinfo_[cur.col()].special_.empty())
1218                                 colinfo_[cur.col()].special_ += '|';
1219                 }
1220                 else if (s == "add-vline-right") {
1221                         colinfo_[cur.col()+1].lines_++;
1222                         if (!colinfo_[cur.col()+1].special_.empty())
1223                                 colinfo_[cur.col()+1].special_.insert(0, 1, '|');
1224                 }
1225                 else if (s == "delete-vline-left") {
1226                         colinfo_[cur.col()].lines_--;
1227                         docstring & special = colinfo_[cur.col()].special_;
1228                         if (!special.empty()) {
1229                                 docstring::size_type i = special.rfind('|');
1230                                 BOOST_ASSERT(i != docstring::npos);
1231                                 special.erase(i, 1);
1232                         }
1233                 }
1234                 else if (s == "delete-vline-right") {
1235                         colinfo_[cur.col()+1].lines_--;
1236                         docstring & special = colinfo_[cur.col()+1].special_;
1237                         if (!special.empty()) {
1238                                 docstring::size_type i = special.find('|');
1239                                 BOOST_ASSERT(i != docstring::npos);
1240                                 special.erase(i, 1);
1241                         }
1242                 }
1243                 else {
1244                         cur.undispatched();
1245                         break;
1246                 }
1247                 lyxerr << "returning FINISHED_LEFT" << endl;
1248                 break;
1249         }
1250
1251         case LFUN_PASTE: {
1252                 cur.message(_("Paste"));
1253                 cap::replaceSelection(cur);
1254                 docstring topaste;
1255                 if (cmd.argument().empty() && !theClipboard().isInternal())
1256                         topaste = theClipboard().getAsText();
1257                 else {
1258                         idocstringstream is(cmd.argument());
1259                         int n = 0;
1260                         is >> n;
1261                         topaste = cap::getSelection(cur.buffer(), n);
1262                 }
1263                 InsetMathGrid grid(1, 1);
1264                 if (!topaste.empty())
1265                         mathed_parse_normal(grid, topaste);
1266
1267                 if (grid.nargs() == 1) {
1268                         // single cell/part of cell
1269                         recordUndo(cur);
1270                         cur.cell().insert(cur.pos(), grid.cell(0));
1271                         cur.pos() += grid.cell(0).size();
1272                 } else {
1273                         // multiple cells
1274                         recordUndoInset(cur);
1275                         col_type const numcols =
1276                                 min(grid.ncols(), ncols() - col(cur.idx()));
1277                         row_type const numrows =
1278                                 min(grid.nrows(), nrows() - cur.row());
1279                         for (row_type r = 0; r < numrows; ++r) {
1280                                 for (col_type c = 0; c < numcols; ++c) {
1281                                         idx_type i = index(r + cur.row(), c + col(cur.idx()));
1282                                         cell(i).insert(0, grid.cell(grid.index(r, c)));
1283                                 }
1284                                 // append the left over horizontal cells to the last column
1285                                 idx_type i = index(r + cur.row(), ncols() - 1);
1286                                 for (InsetMath::col_type c = numcols; c < grid.ncols(); ++c)
1287                                         cell(i).append(grid.cell(grid.index(r, c)));
1288                         }
1289                         // append the left over vertical cells to the last _cell_
1290                         idx_type i = nargs() - 1;
1291                         for (row_type r = numrows; r < grid.nrows(); ++r)
1292                                 for (col_type c = 0; c < grid.ncols(); ++c)
1293                                         cell(i).append(grid.cell(grid.index(r, c)));
1294                 }
1295                 cur.clearSelection(); // bug 393
1296                 finishUndo();
1297                 break;
1298         }
1299
1300         case LFUN_LINE_BEGIN_SELECT:
1301         case LFUN_LINE_BEGIN:
1302         case LFUN_WORD_BACKWARD_SELECT:
1303         case LFUN_WORD_BACKWARD:
1304                 cur.selHandle(cmd.action == LFUN_WORD_BACKWARD_SELECT ||
1305                                 cmd.action == LFUN_LINE_BEGIN_SELECT);
1306                 cur.macroModeClose();
1307                 if (cur.pos() != 0) {
1308                         cur.pos() = 0;
1309                 } else if (cur.idx() % cur.ncols() != 0) {
1310                         cur.idx() -= cur.idx() % cur.ncols();
1311                         cur.pos() = 0;
1312                 } else if (cur.idx() != 0) {
1313                         cur.idx() = 0;
1314                         cur.pos() = 0;
1315                 } else {
1316                         cmd = FuncRequest(LFUN_FINISHED_LEFT);
1317                         cur.undispatched();
1318                 }
1319                 break;
1320
1321         case LFUN_WORD_FORWARD_SELECT:
1322         case LFUN_WORD_FORWARD:
1323         case LFUN_LINE_END_SELECT:
1324         case LFUN_LINE_END:
1325                 cur.selHandle(cmd.action == LFUN_WORD_FORWARD_SELECT ||
1326                                 cmd.action == LFUN_LINE_END_SELECT);
1327                 cur.macroModeClose();
1328                 cur.clearTargetX();
1329                 if (cur.pos() != cur.lastpos()) {
1330                         cur.pos() = cur.lastpos();
1331                 } else if ((cur.idx() + 1) % cur.ncols() != 0) {
1332                         cur.idx() += cur.ncols() - 1 - cur.idx() % cur.ncols();
1333                         cur.pos() = cur.lastpos();
1334                 } else if (cur.idx() != cur.lastidx()) {
1335                         cur.idx() = cur.lastidx();
1336                         cur.pos() = cur.lastpos();
1337                 } else {
1338                         cmd = FuncRequest(LFUN_FINISHED_RIGHT);
1339                         cur.undispatched();
1340                 }
1341                 break;
1342
1343         default:
1344                 InsetMathNest::doDispatch(cur, cmd);
1345         }
1346 }
1347
1348
1349 bool InsetMathGrid::getStatus(Cursor & cur, FuncRequest const & cmd,
1350                 FuncStatus & status) const
1351 {
1352         switch (cmd.action) {
1353         case LFUN_TABULAR_FEATURE: {
1354                 string const s = to_utf8(cmd.argument());
1355                 if (nrows() <= 1 && (s == "delete-row" || s == "swap-row")) {
1356                         status.enabled(false);
1357                         status.message(from_utf8(N_("Only one row")));
1358                         return true;
1359                 }
1360                 if (ncols() <= 1 &&
1361                     (s == "delete-column" || s == "swap-column")) {
1362                         status.enabled(false);
1363                         status.message(from_utf8(N_("Only one column")));
1364                         return true;
1365                 }
1366                 if ((rowinfo_[cur.row()].lines_ == 0 &&
1367                      s == "delete-hline-above") ||
1368                     (rowinfo_[cur.row() + 1].lines_ == 0 &&
1369                      s == "delete-hline-below")) {
1370                         status.enabled(false);
1371                         status.message(from_utf8(N_("No hline to delete")));
1372                         return true;
1373                 }
1374
1375                 if ((colinfo_[cur.col()].lines_ == 0 &&
1376                      s == "delete-vline-left") ||
1377                     (colinfo_[cur.col() + 1].lines_ == 0 &&
1378                      s == "delete-vline-right")) {
1379                         status.enabled(false);
1380                         status.message(from_utf8(N_("No vline to delete")));
1381                         return true;
1382                 }
1383                 if (s == "valign-top" || s == "valign-middle" ||
1384                     s == "valign-bottom" || s == "align-left" ||
1385                     s == "align-right" || s == "align-center" ||
1386                     s == "append-row" || s == "delete-row" ||
1387                     s == "copy-row" || s == "swap-row" ||
1388                     s == "add-hline-above" || s == "add-hline-below" ||
1389                     s == "delete-hline-above" || s == "delete-hline-below" ||
1390                     s == "append-column" || s == "delete-column" ||
1391                     s == "copy-column" || s == "swap-column" ||
1392                     s == "add-vline-left" || s == "add-vline-right" ||
1393                     s == "delete-vline-left" || s == "delete-vline-right")
1394                         status.enabled(true);
1395                 else {
1396                         status.enabled(false);
1397                         status.message(bformat(
1398                                 from_utf8(N_("Unknown tabular feature '%1$s'")), lyx::from_ascii(s)));
1399                 }
1400
1401                 status.setOnOff((s == "align-left" && halign(cur.col()) == 'l')
1402                            || (s == "align-right"   && halign(cur.col()) == 'r')
1403                            || (s == "align-center"  && halign(cur.col()) == 'c')
1404                            || (s == "valign-top"    && valign() == 't')
1405                            || (s == "valign-bottom" && valign() == 'b')
1406                            || (s == "valign-middle" && valign() == 'm'));
1407
1408 #if 0
1409                 // FIXME: What did this code do?
1410                 // Please check whether it is still needed!
1411                 // should be more precise
1412                 if (v_align_ == '\0') {
1413                         status.enable(true);
1414                         break;
1415                 }
1416                 if (cmd.argument().empty()) {
1417                         status.enable(false);
1418                         break;
1419                 }
1420                 if (!support::contains("tcb", cmd.argument()[0])) {
1421                         status.enable(false);
1422                         break;
1423                 }
1424                 status.setOnOff(cmd.argument()[0] == v_align_);
1425                 status.enabled(true);
1426 #endif
1427                 return true;
1428         }
1429
1430         case LFUN_CELL_SPLIT:
1431                 status.enabled(true);
1432                 return true;
1433
1434         case LFUN_CELL_BACKWARD:
1435         case LFUN_CELL_FORWARD:
1436                 status.enabled(true);
1437                 return true;
1438
1439         default:
1440                 return InsetMathNest::getStatus(cur, cmd, status);
1441         }
1442 }
1443
1444
1445 } // namespace lyx