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
  15 #include "MathData.h"
  16 #include "MathParser.h"
  17 #include "MathStream.h"
  18 #include "MetricsInfo.h"
  19
  20 #include "BufferView.h"
  21 #include "CutAndPaste.h"
  22 #include "FuncStatus.h"
  23 #include "Cursor.h"
  24 #include "support/debug.h"
  25 #include "FuncRequest.h"
  26 #include "support/gettext.h"
  27
  28 #include "frontends/Clipboard.h"
  29 #include "frontends/Painter.h"
  30
  31 #include "support/lstrings.h"
  32 #include "support/docstream.h"
  33
  34 #include <sstream>
  35
  36 using namespace std;
  37 using namespace lyx::support;
  38
  39 namespace lyx {
  40
  41 namespace {
  42
  43 docstring verboseHLine(int n)
  44 {
  45         docstring res;
  46         for (int i = 0; i < n; ++i)
  47                 res += "\\hline";
  48         if (n)
  49                 res += ' ';
  50         return res;
  51 }
  52
  53
  54 int extractInt(istream & is)
  55 {
  56         int num = 1;
  57         is >> num;
  58         return (num == 0) ? 1 : num;
  59 }
  60
  61 }
  62
  63
  64 //////////////////////////////////////////////////////////////
  65
  66
  67 InsetMathGrid::CellInfo::CellInfo()
  68         : dummy_(false)
  69 {}
  70
  71
  72
  73
  74 //////////////////////////////////////////////////////////////
  75
  76
  77 InsetMathGrid::RowInfo::RowInfo()
  78         : lines_(0), skip_(0), allow_newpage_(true)
  79 {}
  80
  81
  82
  83 int InsetMathGrid::RowInfo::skipPixels() const
  84 {
  85         return crskip_.inBP();
  86 }
  87
  88
  89
  90 //////////////////////////////////////////////////////////////
  91
  92
  93 InsetMathGrid::ColInfo::ColInfo()
  94         : align_('c'), lines_(0)
  95 {}
  96
  97
  98 //////////////////////////////////////////////////////////////
  99
 100
 101 InsetMathGrid::InsetMathGrid(char v, docstring const & h)
 102         : InsetMathNest(guessColumns(h)),
 103           rowinfo_(2),
 104           colinfo_(guessColumns(h) + 1),
 105           cellinfo_(1 * guessColumns(h))
 106 {
 107         setDefaults();
 108         valign(v);
 109         halign(h);
 110         //lyxerr << "created grid with " << ncols() << " columns" << endl;
 111 }
 112
 113
 114 InsetMathGrid::InsetMathGrid()
 115         : InsetMathNest(1),
 116           rowinfo_(1 + 1),
 117                 colinfo_(1 + 1),
 118                 cellinfo_(1),
 119                 v_align_('c')
 120 {
 121         setDefaults();
 122 }
 123
 124
 125 InsetMathGrid::InsetMathGrid(col_type m, row_type n)
 126         : InsetMathNest(m * n),
 127           rowinfo_(n + 1),
 128                 colinfo_(m + 1),
 129                 cellinfo_(m * n),
 130                 v_align_('c')
 131 {
 132         setDefaults();
 133 }
 134
 135
 136 InsetMathGrid::InsetMathGrid(col_type m, row_type n, char v, docstring const & h)
 137         : InsetMathNest(m * n),
 138           rowinfo_(n + 1),
 139           colinfo_(m + 1),
 140                 cellinfo_(m * n),
 141                 v_align_(v)
 142 {
 143         setDefaults();
 144         valign(v);
 145         halign(h);
 146 }
 147
 148
 149 Inset * InsetMathGrid::clone() const
 150 {
 151         return new InsetMathGrid(*this);
 152 }
 153
 154
 155 InsetMath::idx_type InsetMathGrid::index(row_type row, col_type col) const
 156 {
 157         return col + ncols() * row;
 158 }
 159
 160
 161 void InsetMathGrid::setDefaults()
 162 {
 163         if (ncols() <= 0)
 164                 lyxerr << "positive number of columns expected" << endl;
 165         //if (nrows() <= 0)
 166         //      lyxerr << "positive number of rows expected" << endl;
 167         for (col_type col = 0; col < ncols(); ++col) {
 168                 colinfo_[col].align_ = defaultColAlign(col);
 169                 colinfo_[col].skip_  = defaultColSpace(col);
 170                 colinfo_[col].special_.clear();
 171         }
 172 }
 173
 174
 175 void InsetMathGrid::halign(docstring const & hh)
 176 {
 177         col_type col = 0;
 178         for (docstring::const_iterator it = hh.begin(); it != hh.end(); ++it) {
 179                 char_type c = *it;
 180                 if (c == '|') {
 181                         colinfo_[col].lines_++;
 182                 } else if ((c == 'p' || c == 'm' || c == 'b'||
 183                             c == '!' || c == '@' || c == '>' || c == '<') &&
 184                            it + 1 != hh.end() && *(it + 1) == '{') {
 185                         // @{decl.} and p{width} are standard LaTeX, the
 186                         // others are extensions by array.sty
 187                         bool const newcolumn = c == 'p' || c == 'm' || c == 'b';
 188                         if (newcolumn) {
 189                                 // this declares a new column
 190                                 if (col >= ncols())
 191                                         // Only intercolumn stuff is allowed
 192                                         // in the last dummy column
 193                                         break;
 194                                 colinfo_[col].align_ = 'l';
 195                         } else {
 196                                 // this is intercolumn stuff
 197                                 if (colinfo_[col].special_.empty())
 198                                         // Overtake possible lines
 199                                         colinfo_[col].special_ = docstring(colinfo_[col].lines_, '|');
 200                         }
 201                         int brace_open = 0;
 202                         int brace_close = 0;
 203                         while (it != hh.end()) {
 204                                 c = *it;
 205                                 colinfo_[col].special_ += c;
 206                                 if (c == '{')
 207                                         ++brace_open;
 208                                 else if (c == '}')
 209                                         ++brace_close;
 210                                 ++it;
 211                                 if (brace_open > 0 && brace_open == brace_close)
 212                                         break;
 213                         }
 214                         --it;
 215                         if (newcolumn) {
 216                                 colinfo_[col].lines_ = count(
 217                                         colinfo_[col].special_.begin(),
 218                                         colinfo_[col].special_.end(), '|');
 219                                 LYXERR(Debug::MATHED, "special column separator: `"
 220                                         << to_utf8(colinfo_[col].special_) << '\'');
 221                                 ++col;
 222                                 colinfo_[col].lines_ = 0;
 223                                 colinfo_[col].special_.clear();
 224                         }
 225                 } else if (col >= ncols()) {
 226                         // Only intercolumn stuff is allowed in the last
 227                         // dummy column
 228                         break;
 229                 } else if (c == 'c' || c == 'l' || c == 'r') {
 230                         colinfo_[col].align_ = static_cast<char>(c);
 231                         if (!colinfo_[col].special_.empty()) {
 232                                 colinfo_[col].special_ += c;
 233                                 colinfo_[col].lines_ = count(
 234                                                 colinfo_[col].special_.begin(),
 235                                                 colinfo_[col].special_.end(), '|');
 236                                 LYXERR(Debug::MATHED, "special column separator: `"
 237                                         << to_utf8(colinfo_[col].special_) << '\'');
 238                         }
 239                         ++col;
 240                         colinfo_[col].lines_ = 0;
 241                         colinfo_[col].special_.clear();
 242                 } else {
 243                         lyxerr << "unknown column separator: '" << c << "'" << endl;
 244                 }
 245         }
 246
 247 /*
 248         col_type n = hh.size();
 249         if (n > ncols())
 250                 n = ncols();
 251         for (col_type col = 0; col < n; ++col)
 252                 colinfo_[col].align_ = hh[col];
 253 */
 254 }
 255
 256
 257 InsetMathGrid::col_type InsetMathGrid::guessColumns(docstring const & hh) const
 258 {
 259         col_type col = 0;
 260         for (docstring::const_iterator it = hh.begin(); it != hh.end(); ++it)
 261                 if (*it == 'c' || *it == 'l' || *it == 'r'||
 262                     *it == 'p' || *it == 'm' || *it == 'b')
 263                         ++col;
 264         // let's have at least one column, even if we did not recognize its
 265         // alignment
 266         if (col == 0)
 267                 col = 1;
 268         return col;
 269 }
 270
 271
 272 void InsetMathGrid::halign(char h, col_type col)
 273 {
 274         colinfo_[col].align_ = h;
 275         if (!colinfo_[col].special_.empty()) {
 276                 char_type & c = colinfo_[col].special_[colinfo_[col].special_.size() - 1];
 277                 if (c == 'l' || c == 'c' || c == 'r')
 278                         c = h;
 279         }
 280         // FIXME: Change alignment of p, m and b columns, too
 281 }
 282
 283
 284 char InsetMathGrid::halign(col_type col) const
 285 {
 286         return colinfo_[col].align_;
 287 }
 288
 289
 290 docstring InsetMathGrid::halign() const
 291 {
 292         docstring res;
 293         for (col_type col = 0; col < ncols(); ++col) {
 294                 if (colinfo_[col].special_.empty()) {
 295                         res += docstring(colinfo_[col].lines_, '|');
 296                         res += colinfo_[col].align_;
 297                 } else
 298                         res += colinfo_[col].special_;
 299         }
 300         if (colinfo_[ncols()].special_.empty())
 301                 return res + docstring(colinfo_[ncols()].lines_, '|');
 302         return res + colinfo_[ncols()].special_;
 303 }
 304
 305
 306 void InsetMathGrid::valign(char c)
 307 {
 308         v_align_ = c;
 309 }
 310
 311
 312 char InsetMathGrid::valign() const
 313 {
 314         return v_align_;
 315 }
 316
 317
 318 InsetMathGrid::col_type InsetMathGrid::ncols() const
 319 {
 320         return colinfo_.size() - 1;
 321 }
 322
 323
 324 InsetMathGrid::row_type InsetMathGrid::nrows() const
 325 {
 326         return rowinfo_.size() - 1;
 327 }
 328
 329
 330 InsetMathGrid::col_type InsetMathGrid::col(idx_type idx) const
 331 {
 332         return idx % ncols();
 333 }
 334
 335
 336 InsetMathGrid::row_type InsetMathGrid::row(idx_type idx) const
 337 {
 338         return idx / ncols();
 339 }
 340
 341
 342 void InsetMathGrid::vcrskip(Length const & crskip, row_type row)
 343 {
 344         rowinfo_[row].crskip_ = crskip;
 345 }
 346
 347
 348 Length InsetMathGrid::vcrskip(row_type row) const
 349 {
 350         return rowinfo_[row].crskip_;
 351 }
 352
 353
 354 void InsetMathGrid::metrics(MetricsInfo & mi, Dimension & dim) const
 355 {
 356         // let the cells adjust themselves
 357         InsetMathNest::metrics(mi);
 358
 359         BufferView & bv = *mi.base.bv;
 360
 361         // compute absolute sizes of vertical structure
 362         for (row_type row = 0; row < nrows(); ++row) {
 363                 int asc  = 0;
 364                 int desc = 0;
 365                 for (col_type col = 0; col < ncols(); ++col) {
 366                         Dimension const & dimc = cell(index(row, col)).dimension(bv);
 367                         asc  = max(asc,  dimc.asc);
 368                         desc = max(desc, dimc.des);
 369                 }
 370                 rowinfo_[row].ascent_  = asc;
 371                 rowinfo_[row].descent_ = desc;
 372         }
 373         rowinfo_[0].ascent_       += hlinesep() * rowinfo_[0].lines_;
 374         rowinfo_[nrows()].ascent_  = 0;
 375         rowinfo_[nrows()].descent_ = 0;
 376
 377         // compute vertical offsets
 378         rowinfo_[0].offset_ = 0;
 379         for (row_type row = 1; row <= nrows(); ++row) {
 380                 rowinfo_[row].offset_  =
 381                         rowinfo_[row - 1].offset_  +
 382                         rowinfo_[row - 1].descent_ +
 383                         rowinfo_[row - 1].skipPixels() +
 384                         rowsep() +
 385                         rowinfo_[row].lines_ * hlinesep() +
 386                         rowinfo_[row].ascent_;
 387         }
 388
 389         // adjust vertical offset
 390         int h = 0;
 391         switch (v_align_) {
 392                 case 't':
 393                         h = 0;
 394                         break;
 395                 case 'b':
 396                         h = rowinfo_[nrows() - 1].offset_;
 397                         break;
 398                 default:
 399                         h = rowinfo_[nrows() - 1].offset_ / 2;
 400         }
 401         for (row_type row = 0; row <= nrows(); ++row)
 402                 rowinfo_[row].offset_ -= h;
 403
 404
 405         // compute absolute sizes of horizontal structure
 406         for (col_type col = 0; col < ncols(); ++col) {
 407                 int wid = 0;
 408                 for (row_type row = 0; row < nrows(); ++row)
 409                         wid = max(wid, cell(index(row, col)).dimension(bv).wid);
 410                 colinfo_[col].width_ = wid;
 411         }
 412         colinfo_[ncols()].width_  = 0;
 413
 414         // compute horizontal offsets
 415         colinfo_[0].offset_ = border();
 416         for (col_type col = 1; col <= ncols(); ++col) {
 417                 colinfo_[col].offset_ =
 418                         colinfo_[col - 1].offset_ +
 419                         colinfo_[col - 1].width_ +
 420                         colinfo_[col - 1].skip_ +
 421                         colsep() +
 422                         colinfo_[col].lines_ * vlinesep();
 423         }
 424
 425
 426         dim.wid   =   colinfo_[ncols() - 1].offset_
 427                        + colinfo_[ncols() - 1].width_
 428                  + vlinesep() * colinfo_[ncols()].lines_
 429                        + border();
 430
 431         dim.asc  = - rowinfo_[0].offset_
 432                        + rowinfo_[0].ascent_
 433                  + hlinesep() * rowinfo_[0].lines_
 434                        + border();
 435
 436         dim.des =   rowinfo_[nrows() - 1].offset_
 437                        + rowinfo_[nrows() - 1].descent_
 438                  + hlinesep() * rowinfo_[nrows()].lines_
 439                        + border();
 440
 441
 442 /*
 443         // Increase ws_[i] for 'R' columns (except the first one)
 444         for (int i = 1; i < nc_; ++i)
 445                 if (align_[i] == 'R')
 446                         ws_[i] += 10 * df_width;
 447         // Increase ws_[i] for 'C' column
 448         if (align_[0] == 'C')
 449                 if (ws_[0] < 7 * workwidth / 8)
 450                         ws_[0] = 7 * workwidth / 8;
 451
 452         // Adjust local tabs
 453         width = colsep();
 454         for (cxrow = row_.begin(); cxrow; ++cxrow) {
 455                 int rg = COLSEP;
 456                 int lf = 0;
 457                 for (int i = 0; i < nc_; ++i) {
 458                         bool isvoid = false;
 459                         if (cxrow->getTab(i) <= 0) {
 460                                 cxrow->setTab(i, df_width);
 461                                 isvoid = true;
 462                         }
 463                         switch (align_[i]) {
 464                         case 'l':
 465                                 lf = 0;
 466                                 break;
 467                         case 'c':
 468                                 lf = (ws_[i] - cxrow->getTab(i))/2;
 469                                 break;
 470                         case 'r':
 471                         case 'R':
 472                                 lf = ws_[i] - cxrow->getTab(i);
 473                                 break;
 474                         case 'C':
 475                                 if (cxrow == row_.begin())
 476                                         lf = 0;
 477                                 else if (cxrow.is_last())
 478                                         lf = ws_[i] - cxrow->getTab(i);
 479                                 else
 480                                         lf = (ws_[i] - cxrow->getTab(i))/2;
 481                                 break;
 482                         }
 483                         int const ww = (isvoid) ? lf : lf + cxrow->getTab(i);
 484                         cxrow->setTab(i, lf + rg);
 485                         rg = ws_[i] - ww + colsep();
 486                         if (cxrow == row_.begin())
 487                                 width += ws_[i] + colsep();
 488                 }
 489                 cxrow->setBaseline(cxrow->getBaseline() - ascent);
 490         }
 491 */
 492         metricsMarkers2(dim);
 493         // Cache the inset dimension.
 494         setDimCache(mi, dim);
 495 }
 496
 497
 498 void InsetMathGrid::draw(PainterInfo & pi, int x, int y) const
 499 {
 500         drawWithMargin(pi, x, y, 1, 1);
 501 }
 502
 503
 504 void InsetMathGrid::drawWithMargin(PainterInfo & pi, int x, int y,
 505         int lmargin, int rmargin) const
 506 {
 507         Dimension const dim = dimension(*pi.base.bv);
 508         BufferView const & bv = *pi.base.bv;
 509
 510         for (idx_type idx = 0; idx < nargs(); ++idx)
 511                 cell(idx).draw(pi, x + lmargin + cellXOffset(bv, idx),
 512                         y + cellYOffset(idx));
 513
 514         for (row_type row = 0; row <= nrows(); ++row)
 515                 for (unsigned int i = 0; i < rowinfo_[row].lines_; ++i) {
 516                         int yy = y + rowinfo_[row].offset_ - rowinfo_[row].ascent_
 517                                 - i * hlinesep() - hlinesep()/2 - rowsep()/2;
 518                         pi.pain.line(x + lmargin + 1, yy,
 519                                      x + dim.width() - rmargin - 1, yy,
 520                                      Color_foreground);
 521                 }
 522
 523         for (col_type col = 0; col <= ncols(); ++col)
 524                 for (unsigned int i = 0; i < colinfo_[col].lines_; ++i) {
 525                         int xx = x + lmargin + colinfo_[col].offset_
 526                                 - i * vlinesep() - vlinesep()/2 - colsep()/2;
 527                         pi.pain.line(xx, y - dim.ascent() + 1,
 528                                      xx, y + dim.descent() - 1,
 529                                      Color_foreground);
 530                 }
 531         drawMarkers2(pi, x, y);
 532 }
 533
 534
 535 void InsetMathGrid::metricsT(TextMetricsInfo const & mi, Dimension & dim) const
 536 {
 537         // let the cells adjust themselves
 538         //InsetMathNest::metrics(mi);
 539         for (idx_type i = 0; i < nargs(); ++i)
 540                 cell(i).metricsT(mi, dim);
 541
 542         // compute absolute sizes of vertical structure
 543         for (row_type row = 0; row < nrows(); ++row) {
 544                 int asc  = 0;
 545                 int desc = 0;
 546                 for (col_type col = 0; col < ncols(); ++col) {
 547                         //MathData const & c = cell(index(row, col));
 548                         // FIXME: BROKEN!
 549                         Dimension dimc;
 550                         asc  = max(asc,  dimc.ascent());
 551                         desc = max(desc, dimc.descent());
 552                 }
 553                 rowinfo_[row].ascent_  = asc;
 554                 rowinfo_[row].descent_ = desc;
 555         }
 556         //rowinfo_[0].ascent_       += hlinesep() * rowinfo_[0].lines_;
 557         rowinfo_[nrows()].ascent_  = 0;
 558         rowinfo_[nrows()].descent_ = 0;
 559
 560         // compute vertical offsets
 561         rowinfo_[0].offset_ = 0;
 562         for (row_type row = 1; row <= nrows(); ++row) {
 563                 rowinfo_[row].offset_  =
 564                         rowinfo_[row - 1].offset_  +
 565                         rowinfo_[row - 1].descent_ +
 566                         //rowinfo_[row - 1].skipPixels() +
 567                         1 + //rowsep() +
 568                         //rowinfo_[row].lines_ * hlinesep() +
 569                         rowinfo_[row].ascent_;
 570         }
 571
 572         // adjust vertical offset
 573         int h = 0;
 574         switch (v_align_) {
 575                 case 't':
 576                         h = 0;
 577                         break;
 578                 case 'b':
 579                         h = rowinfo_[nrows() - 1].offset_;
 580                         break;
 581                 default:
 582                         h = rowinfo_[nrows() - 1].offset_ / 2;
 583         }
 584         for (row_type row = 0; row <= nrows(); ++row)
 585                 rowinfo_[row].offset_ -= h;
 586
 587
 588         // compute absolute sizes of horizontal structure
 589         for (col_type col = 0; col < ncols(); ++col) {
 590                 int wid = 0;
 591                 for (row_type row = 0; row < nrows(); ++row) {
 592                         // FIXME: BROKEN!
 593                         //wid = max(wid, cell(index(row, col)).width());
 594                 }
 595                 colinfo_[col].width_ = wid;
 596         }
 597         colinfo_[ncols()].width_  = 0;
 598
 599         // compute horizontal offsets
 600         colinfo_[0].offset_ = border();
 601         for (col_type col = 1; col <= ncols(); ++col) {
 602                 colinfo_[col].offset_ =
 603                         colinfo_[col - 1].offset_ +
 604                         colinfo_[col - 1].width_ +
 605                         colinfo_[col - 1].skip_ +
 606                         1 ; //colsep() +
 607                         //colinfo_[col].lines_ * vlinesep();
 608         }
 609
 610
 611         dim.wid  =  colinfo_[ncols() - 1].offset_
 612                        + colinfo_[ncols() - 1].width_
 613                  //+ vlinesep() * colinfo_[ncols()].lines_
 614                        + 2;
 615
 616         dim.asc  = -rowinfo_[0].offset_
 617                        + rowinfo_[0].ascent_
 618                  //+ hlinesep() * rowinfo_[0].lines_
 619                        + 1;
 620
 621         dim.des  =  rowinfo_[nrows() - 1].offset_
 622                        + rowinfo_[nrows() - 1].descent_
 623                  //+ hlinesep() * rowinfo_[nrows()].lines_
 624                        + 1;
 625 }
 626
 627
 628 void InsetMathGrid::drawT(TextPainter & /*pain*/, int /*x*/, int /*y*/) const
 629 {
 630 //      for (idx_type idx = 0; idx < nargs(); ++idx)
 631 //              cell(idx).drawT(pain, x + cellXOffset(idx), y + cellYOffset(idx));
 632 }
 633
 634
 635 docstring InsetMathGrid::eolString(row_type row, bool emptyline, bool fragile) const
 636 {
 637         docstring eol;
 638
 639         if (!rowinfo_[row].crskip_.zero())
 640                 eol += '[' + from_utf8(rowinfo_[row].crskip_.asLatexString()) + ']';
 641         else if(!rowinfo_[row].allow_newpage_)
 642                 eol += '*';
 643
 644         // make sure an upcoming '[' does not break anything
 645         if (row + 1 < nrows()) {
 646                 MathData const & c = cell(index(row + 1, 0));
 647                 if (c.size() && c.front()->getChar() == '[')
 648                         //eol += "[0pt]";
 649                         eol += "{}";
 650         }
 651
 652         // only add \\ if necessary
 653         if (eol.empty() && row + 1 == nrows() && (nrows() == 1 || !emptyline))
 654                 return docstring();
 655
 656         return (fragile ? "\\protect\\\\" : "\\\\") + eol;
 657 }
 658
 659
 660 docstring InsetMathGrid::eocString(col_type col, col_type lastcol) const
 661 {
 662         if (col + 1 == lastcol)
 663                 return docstring();
 664         return from_ascii(" & ");
 665 }
 666
 667
 668 void InsetMathGrid::addRow(row_type row)
 669 {
 670         rowinfo_.insert(rowinfo_.begin() + row + 1, RowInfo());
 671         cells_.insert
 672                 (cells_.begin() + (row + 1) * ncols(), ncols(), MathData());
 673         cellinfo_.insert
 674                 (cellinfo_.begin() + (row + 1) * ncols(), ncols(), CellInfo());
 675 }
 676
 677
 678 void InsetMathGrid::appendRow()
 679 {
 680         rowinfo_.push_back(RowInfo());
 681         //cells_.insert(cells_.end(), ncols(), MathData());
 682         for (col_type col = 0; col < ncols(); ++col) {
 683                 cells_.push_back(cells_type::value_type());
 684                 cellinfo_.push_back(CellInfo());
 685         }
 686 }
 687
 688
 689 void InsetMathGrid::delRow(row_type row)
 690 {
 691         if (nrows() == 1)
 692                 return;
 693
 694         cells_type::iterator it = cells_.begin() + row * ncols();
 695         cells_.erase(it, it + ncols());
 696
 697         vector<CellInfo>::iterator jt = cellinfo_.begin() + row * ncols();
 698         cellinfo_.erase(jt, jt + ncols());
 699
 700         rowinfo_.erase(rowinfo_.begin() + row);
 701 }
 702
 703
 704 void InsetMathGrid::copyRow(row_type row)
 705 {
 706         addRow(row);
 707         for (col_type col = 0; col < ncols(); ++col)
 708                 cells_[(row + 1) * ncols() + col] = cells_[row * ncols() + col];
 709 }
 710
 711
 712 void InsetMathGrid::swapRow(row_type row)
 713 {
 714         if (nrows() == 1)
 715                 return;
 716         if (row + 1 == nrows())
 717                 --row;
 718         for (col_type col = 0; col < ncols(); ++col)
 719                 swap(cells_[row * ncols() + col], cells_[(row + 1) * ncols() + col]);
 720 }
 721
 722
 723 void InsetMathGrid::addCol(col_type newcol)
 724 {
 725         const col_type nc = ncols();
 726         const row_type nr = nrows();
 727         cells_type new_cells((nc + 1) * nr);
 728         vector<CellInfo> new_cellinfo((nc + 1) * nr);
 729
 730         for (row_type row = 0; row < nr; ++row)
 731                 for (col_type col = 0; col < nc; ++col) {
 732                         new_cells[row * (nc + 1) + col + (col >= newcol)]
 733                                 = cells_[row * nc + col];
 734                         new_cellinfo[row * (nc + 1) + col + (col >= newcol)]
 735                                 = cellinfo_[row * nc + col];
 736                 }
 737         swap(cells_, new_cells);
 738         swap(cellinfo_, new_cellinfo);
 739
 740         ColInfo inf;
 741         inf.skip_  = defaultColSpace(newcol);
 742         inf.align_ = defaultColAlign(newcol);
 743         colinfo_.insert(colinfo_.begin() + newcol, inf);
 744 }
 745
 746
 747 void InsetMathGrid::delCol(col_type col)
 748 {
 749         if (ncols() == 1)
 750                 return;
 751
 752         cells_type tmpcells;
 753         vector<CellInfo> tmpcellinfo;
 754         for (col_type i = 0; i < nargs(); ++i)
 755                 if (i % ncols() != col) {
 756                         tmpcells.push_back(cells_[i]);
 757                         tmpcellinfo.push_back(cellinfo_[i]);
 758                 }
 759         swap(cells_, tmpcells);
 760         swap(cellinfo_, tmpcellinfo);
 761
 762         colinfo_.erase(colinfo_.begin() + col);
 763 }
 764
 765
 766 void InsetMathGrid::copyCol(col_type col)
 767 {
 768         addCol(col);
 769         for (row_type row = 0; row < nrows(); ++row)
 770                 cells_[row * ncols() + col + 1] = cells_[row * ncols() + col];
 771 }
 772
 773
 774 void InsetMathGrid::swapCol(col_type col)
 775 {
 776         if (ncols() == 1)
 777                 return;
 778         if (col + 1 == ncols())
 779                 --col;
 780         for (row_type row = 0; row < nrows(); ++row)
 781                 swap(cells_[row * ncols() + col], cells_[row * ncols() + col + 1]);
 782 }
 783
 784
 785 int InsetMathGrid::cellXOffset(BufferView const & bv, idx_type idx) const
 786 {
 787         col_type c = col(idx);
 788         int x = colinfo_[c].offset_;
 789         char align = colinfo_[c].align_;
 790         Dimension const & celldim = cell(idx).dimension(bv);
 791         if (align == 'r' || align == 'R')
 792                 x += colinfo_[c].width_ - celldim.wid;
 793         if (align == 'c' || align == 'C')
 794                 x += (colinfo_[c].width_ - celldim.wid) / 2;
 795         return x;
 796 }
 797
 798
 799 int InsetMathGrid::cellYOffset(idx_type idx) const
 800 {
 801         return rowinfo_[row(idx)].offset_;
 802 }
 803
 804
 805 bool InsetMathGrid::idxUpDown(Cursor & cur, bool up) const
 806 {
 807         if (up) {
 808                 if (cur.row() == 0)
 809                         return false;
 810                 cur.idx() -= ncols();
 811         } else {
 812                 if (cur.row() + 1 >= nrows())
 813                         return false;
 814                 cur.idx() += ncols();
 815         }
 816         cur.pos() = cur.cell().x2pos(&cur.bv(), cur.x_target() - cur.cell().xo(cur.bv()));
 817         return true;
 818 }
 819
 820
 821 bool InsetMathGrid::idxBackward(Cursor & cur) const
 822 {
 823         // leave matrix if at the front edge
 824         if (cur.col() == 0)
 825                 return false;
 826         --cur.idx();
 827         cur.pos() = cur.lastpos();
 828         return true;
 829 }
 830
 831
 832 bool InsetMathGrid::idxForward(Cursor & cur) const
 833 {
 834         // leave matrix if at the back edge
 835         if (cur.col() + 1 == ncols())
 836                 return false;
 837         ++cur.idx();
 838         cur.pos() = 0;
 839         return true;
 840 }
 841
 842
 843 bool InsetMathGrid::idxFirst(Cursor & cur) const
 844 {
 845         switch (v_align_) {
 846                 case 't':
 847                         cur.idx() = 0;
 848                         break;
 849                 case 'b':
 850                         cur.idx() = (nrows() - 1) * ncols();
 851                         break;
 852                 default:
 853                         cur.idx() = ((nrows() - 1) / 2) * ncols();
 854         }
 855         cur.pos() = 0;
 856         return true;
 857 }
 858
 859
 860 bool InsetMathGrid::idxLast(Cursor & cur) const
 861 {
 862         switch (v_align_) {
 863                 case 't':
 864                         cur.idx() = ncols() - 1;
 865                         break;
 866                 case 'b':
 867                         cur.idx() = nargs() - 1;
 868                         break;
 869                 default:
 870                         cur.idx() = ((nrows() - 1) / 2 + 1) * ncols() - 1;
 871         }
 872         cur.pos() = cur.lastpos();
 873         return true;
 874 }
 875
 876
 877 bool InsetMathGrid::idxDelete(idx_type & idx)
 878 {
 879         // nothing to do if we have just one row
 880         if (nrows() == 1)
 881                 return false;
 882
 883         // nothing to do if we are in the middle of the last row of the inset
 884         if (idx + ncols() > nargs())
 885                 return false;
 886
 887         // try to delete entire sequence of ncols() empty cells if possible
 888         for (idx_type i = idx; i < idx + ncols(); ++i)
 889                 if (cell(i).size())
 890                         return false;
 891
 892         // move cells if necessary
 893         for (idx_type i = index(row(idx), 0); i < idx; ++i)
 894                 swap(cell(i), cell(i + ncols()));
 895
 896         delRow(row(idx));
 897
 898         if (idx >= nargs())
 899                 idx = nargs() - 1;
 900
 901         // undo effect of Ctrl-Tab (i.e. pull next cell)
 902         //if (idx + 1 != nargs())
 903         //      cell(idx).swap(cell(idx + 1));
 904
 905         // we handled the event..
 906         return true;
 907 }
 908
 909
 910 // reimplement old behaviour when pressing Delete in the last position
 911 // of a cell
 912 void InsetMathGrid::idxGlue(idx_type idx)
 913 {
 914         col_type c = col(idx);
 915         if (c + 1 == ncols()) {
 916                 if (row(idx) + 1 != nrows()) {
 917                         for (col_type cc = 0; cc < ncols(); ++cc)
 918                                 cell(idx).append(cell(idx + cc + 1));
 919                         delRow(row(idx) + 1);
 920                 }
 921         } else {
 922                 cell(idx).append(cell(idx + 1));
 923                 for (col_type cc = c + 2; cc < ncols(); ++cc)
 924                         cell(idx - c + cc - 1) = cell(idx - c + cc);
 925                 cell(idx - c + ncols() - 1).clear();
 926         }
 927 }
 928
 929
 930 InsetMathGrid::RowInfo const & InsetMathGrid::rowinfo(row_type row) const
 931 {
 932         return rowinfo_[row];
 933 }
 934
 935
 936 InsetMathGrid::RowInfo & InsetMathGrid::rowinfo(row_type row)
 937 {
 938         return rowinfo_[row];
 939 }
 940
 941
 942 bool InsetMathGrid::idxBetween(idx_type idx, idx_type from, idx_type to) const
 943 {
 944         row_type const ri = row(idx);
 945         row_type const r1 = min(row(from), row(to));
 946         row_type const r2 = max(row(from), row(to));
 947         col_type const ci = col(idx);
 948         col_type const c1 = min(col(from), col(to));
 949         col_type const c2 = max(col(from), col(to));
 950         return r1 <= ri && ri <= r2 && c1 <= ci && ci <= c2;
 951 }
 952
 953
 954
 955 void InsetMathGrid::normalize(NormalStream & os) const
 956 {
 957         os << "[grid ";
 958         for (row_type row = 0; row < nrows(); ++row) {
 959                 os << "[row ";
 960                 for (col_type col = 0; col < ncols(); ++col)
 961                         os << "[cell " << cell(index(row, col)) << ']';
 962                 os << ']';
 963         }
 964         os << ']';
 965 }
 966
 967
 968 void InsetMathGrid::mathmlize(MathStream & os) const
 969 {
 970         os << MTag("mtable");
 971         for (row_type row = 0; row < nrows(); ++row) {
 972                 os << MTag("mtr");
 973                 for (col_type col = 0; col < ncols(); ++col)
 974                         os << cell(index(row, col));
 975                 os << ETag("mtr");
 976         }
 977         os << ETag("mtable");
 978 }
 979
 980
 981 void InsetMathGrid::write(WriteStream & os) const
 982 {
 983         docstring eol;
 984         for (row_type row = 0; row < nrows(); ++row) {
 985                 os << verboseHLine(rowinfo_[row].lines_);
 986                 // don't write & and empty cells at end of line
 987                 col_type lastcol = 0;
 988                 bool emptyline = true;
 989                 for (col_type col = 0; col < ncols(); ++col)
 990                         if (!cell(index(row, col)).empty()) {
 991                                 lastcol = col + 1;
 992                                 emptyline = false;
 993                         }
 994                 for (col_type col = 0; col < lastcol; ++col)
 995                         os << cell(index(row, col)) << eocString(col, lastcol);
 996                 eol = eolString(row, emptyline, os.fragile());
 997                 os << eol;
 998                 // append newline only if line wasn't completely empty
 999                 // and this was not the last line in the grid
1000                 if (!emptyline && row + 1 < nrows())
1001                         os << "\n";
1002         }
1003         docstring const s = verboseHLine(rowinfo_[nrows()].lines_);
1004         if (!s.empty()) {
1005                 if (eol.empty()) {
1006                         if (os.fragile())
1007                                 os << "\\protect";
1008                         os << "\\\\";
1009                 }
1010                 os << s;
1011         }
1012 }
1013
1014
1015 int InsetMathGrid::colsep() const
1016 {
1017         return 6;
1018 }
1019
1020
1021 int InsetMathGrid::rowsep() const
1022 {
1023         return 6;
1024 }
1025
1026
1027 int InsetMathGrid::hlinesep() const
1028 {
1029         return 3;
1030 }
1031
1032
1033 int InsetMathGrid::vlinesep() const
1034 {
1035         return 3;
1036 }
1037
1038
1039 int InsetMathGrid::border() const
1040 {
1041         return 1;
1042 }
1043
1044
1045 void InsetMathGrid::splitCell(Cursor & cur)
1046 {
1047         if (cur.idx() == cur.lastidx())
1048                 return;
1049         MathData ar = cur.cell();
1050         ar.erase(0, cur.pos());
1051         cur.cell().erase(cur.pos(), cur.lastpos());
1052         ++cur.idx();
1053         cur.pos() = 0;
1054         cur.cell().insert(0, ar);
1055 }
1056
1057
1058 void InsetMathGrid::doDispatch(Cursor & cur, FuncRequest & cmd)
1059 {
1060         //lyxerr << "*** InsetMathGrid: request: " << cmd << endl;
1061         switch (cmd.action) {
1062
1063         // insert file functions
1064         case LFUN_LINE_DELETE:
1065                 // FIXME: We use recordUndoInset when a change reflects more
1066                 // than one cell, because recordUndo does not work for
1067                 // multiple cells. Unfortunately this puts the cursor in front
1068                 // of the inset after undo. This is (especilally for large
1069                 // grids) annoying.
1070                 cur.recordUndoInset();
1071                 //autocorrect_ = false;
1072                 //macroModeClose();
1073                 //if (selection_) {
1074                 //      selDel();
1075                 //      break;
1076                 //}
1077                 if (nrows() > 1)
1078                         delRow(cur.row());
1079                 if (cur.idx() > cur.lastidx())
1080                         cur.idx() = cur.lastidx();
1081                 if (cur.pos() > cur.lastpos())
1082                         cur.pos() = cur.lastpos();
1083                 break;
1084
1085         case LFUN_CELL_SPLIT:
1086                 cur.recordUndo();
1087                 splitCell(cur);
1088                 break;
1089
1090         case LFUN_CELL_BACKWARD:
1091                 // See below.
1092                 cur.selection() = false;
1093                 if (!idxPrev(cur)) {
1094                         cmd = FuncRequest(LFUN_FINISHED_BACKWARD);
1095                         cur.undispatched();
1096                 }
1097                 break;
1098
1099         case LFUN_CELL_FORWARD:
1100                 // Can't handle selection by additional 'shift' as this is
1101                 // hard bound to LFUN_CELL_BACKWARD
1102                 cur.selection() = false;
1103                 if (!idxNext(cur)) {
1104                         cmd = FuncRequest(LFUN_FINISHED_FORWARD);
1105                         cur.undispatched();
1106                 }
1107                 break;
1108
1109         case LFUN_NEW_LINE: {
1110                 cur.recordUndoInset();
1111                 row_type const r = cur.row();
1112                 addRow(r);
1113
1114                 // split line
1115                 for (col_type c = col(cur.idx()) + 1; c < ncols(); ++c)
1116                         swap(cell(index(r, c)), cell(index(r + 1, c)));
1117
1118                 // split cell
1119                 splitCell(cur);
1120                 swap(cell(cur.idx()), cell(cur.idx() + ncols() - 1));
1121                 if (cur.idx() > 0)
1122                         --cur.idx();
1123                 cur.pos() = cur.lastpos();
1124
1125                 //mathcursor->normalize();
1126                 //cmd = FuncRequest(LFUN_FINISHED_BACKWARD);
1127                 break;
1128         }
1129
1130         case LFUN_TABULAR_FEATURE: {
1131                 cur.recordUndoInset();
1132                 //lyxerr << "handling tabular-feature " << to_utf8(cmd.argument()) << endl;
1133                 istringstream is(to_utf8(cmd.argument()));
1134                 string s;
1135                 is >> s;
1136                 if (s == "valign-top")
1137                         valign('t');
1138                 else if (s == "valign-middle")
1139                         valign('c');
1140                 else if (s == "valign-bottom")
1141                         valign('b');
1142                 else if (s == "align-left")
1143                         halign('l', cur.col());
1144                 else if (s == "align-right")
1145                         halign('r', cur.col());
1146                 else if (s == "align-center")
1147                         halign('c', cur.col());
1148                 else if (s == "append-row")
1149                         for (int i = 0, n = extractInt(is); i < n; ++i)
1150                                 addRow(cur.row());
1151                 else if (s == "delete-row") {
1152                         cur.clearSelection(); // bug 4323
1153                         for (int i = 0, n = extractInt(is); i < n; ++i) {
1154                                 delRow(cur.row());
1155                                 if (cur.idx() >= nargs())
1156                                         cur.idx() -= ncols();
1157                         }
1158                         cur.pos() = 0; // trick, see below
1159                 }
1160                 else if (s == "copy-row") {
1161                         // Here (as later) we save the cursor col/row
1162                         // in order to restore it after operation.
1163                         row_type const r = cur.row();
1164                         col_type const c = cur.col();
1165                         for (int i = 0, n = extractInt(is); i < n; ++i)
1166                                 copyRow(cur.row());
1167                         cur.idx() = index(r, c);
1168                 }
1169                 else if (s == "swap-row") {
1170                         swapRow(cur.row());
1171                         // Trick to suppress same-idx-means-different-cell
1172                         // assertion crash:
1173                         cur.pos() = 0;
1174                 }
1175                 else if (s == "add-hline-above")
1176                         rowinfo_[cur.row()].lines_++;
1177                 else if (s == "add-hline-below")
1178                         rowinfo_[cur.row()+1].lines_++;
1179                 else if (s == "delete-hline-above")
1180                         rowinfo_[cur.row()].lines_--;
1181                 else if (s == "delete-hline-below")
1182                         rowinfo_[cur.row()+1].lines_--;
1183                 else if (s == "append-column") {
1184                         row_type const r = cur.row();
1185                         col_type const c = cur.col();
1186                         for (int i = 0, n = extractInt(is); i < n; ++i)
1187                                 addCol(cur.col() + 1);
1188                         cur.idx() = index(r, c);
1189                 }
1190                 else if (s == "delete-column") {
1191                         cur.clearSelection(); // bug 4323
1192                         row_type const r = cur.row();
1193                         col_type const c = cur.col();
1194                         for (int i = 0, n = extractInt(is); i < n; ++i)
1195                                 delCol(col(cur.idx()));
1196                         cur.idx() = index(r, min(c, cur.ncols() - 1));
1197                         cur.pos() = 0; // trick, see above
1198                 }
1199                 else if (s == "copy-column") {
1200                         row_type const r = cur.row();
1201                         col_type const c = cur.col();
1202                         copyCol(cur.col());
1203                         cur.idx() = index(r, c);
1204                 }
1205                 else if (s == "swap-column") {
1206                         swapCol(cur.col());
1207                         cur.pos() = 0; // trick, see above
1208                 }
1209                 else if (s == "add-vline-left") {
1210                         colinfo_[cur.col()].lines_++;
1211                         if (!colinfo_[cur.col()].special_.empty())
1212                                 colinfo_[cur.col()].special_ += '|';
1213                 }
1214                 else if (s == "add-vline-right") {
1215                         colinfo_[cur.col()+1].lines_++;
1216                         if (!colinfo_[cur.col()+1].special_.empty())
1217                                 colinfo_[cur.col()+1].special_.insert(0, 1, '|');
1218                 }
1219                 else if (s == "delete-vline-left") {
1220                         colinfo_[cur.col()].lines_--;
1221                         docstring & special = colinfo_[cur.col()].special_;
1222                         if (!special.empty()) {
1223                                 docstring::size_type i = special.rfind('|');
1224                                 BOOST_ASSERT(i != docstring::npos);
1225                                 special.erase(i, 1);
1226                         }
1227                 }
1228                 else if (s == "delete-vline-right") {
1229                         colinfo_[cur.col()+1].lines_--;
1230                         docstring & special = colinfo_[cur.col()+1].special_;
1231                         if (!special.empty()) {
1232                                 docstring::size_type i = special.find('|');
1233                                 BOOST_ASSERT(i != docstring::npos);
1234                                 special.erase(i, 1);
1235                         }
1236                 }
1237                 else {
1238                         cur.undispatched();
1239                         break;
1240                 }
1241                 // perhaps this should be FINISHED_BACKWARD -- just for clarity?
1242                 lyxerr << "returning FINISHED_LEFT" << endl;
1243                 break;
1244         }
1245
1246         case LFUN_PASTE: {
1247                 cur.message(_("Paste"));
1248                 cap::replaceSelection(cur);
1249                 docstring topaste;
1250                 if (cmd.argument().empty() && !theClipboard().isInternal())
1251                         topaste = theClipboard().getAsText();
1252                 else {
1253                         idocstringstream is(cmd.argument());
1254                         int n = 0;
1255                         is >> n;
1256                         topaste = cap::getSelection(cur.buffer(), n);
1257                 }
1258                 InsetMathGrid grid(1, 1);
1259                 if (!topaste.empty())
1260                         mathed_parse_normal(grid, topaste);
1261
1262                 if (grid.nargs() == 1) {
1263                         // single cell/part of cell
1264                         cur.recordUndo();
1265                         cur.cell().insert(cur.pos(), grid.cell(0));
1266                         cur.pos() += grid.cell(0).size();
1267                 } else {
1268                         // multiple cells
1269                         cur.recordUndoInset();
1270                         col_type const numcols =
1271                                 min(grid.ncols(), ncols() - col(cur.idx()));
1272                         row_type const numrows =
1273                                 min(grid.nrows(), nrows() - cur.row());
1274                         for (row_type r = 0; r < numrows; ++r) {
1275                                 for (col_type c = 0; c < numcols; ++c) {
1276                                         idx_type i = index(r + cur.row(), c + col(cur.idx()));
1277                                         cell(i).insert(0, grid.cell(grid.index(r, c)));
1278                                 }
1279                                 // append the left over horizontal cells to the last column
1280                                 idx_type i = index(r + cur.row(), ncols() - 1);
1281                                 for (InsetMath::col_type c = numcols; c < grid.ncols(); ++c)
1282                                         cell(i).append(grid.cell(grid.index(r, c)));
1283                         }
1284                         // append the left over vertical cells to the last _cell_
1285                         idx_type i = nargs() - 1;
1286                         for (row_type r = numrows; r < grid.nrows(); ++r)
1287                                 for (col_type c = 0; c < grid.ncols(); ++c)
1288                                         cell(i).append(grid.cell(grid.index(r, c)));
1289                 }
1290                 cur.clearSelection(); // bug 393
1291                 cur.finishUndo();
1292                 break;
1293         }
1294
1295         case LFUN_LINE_BEGIN_SELECT:
1296         case LFUN_LINE_BEGIN:
1297         case LFUN_WORD_BACKWARD_SELECT:
1298         case LFUN_WORD_BACKWARD:
1299         case LFUN_WORD_LEFT_SELECT:
1300         case LFUN_WORD_LEFT:
1301                 cur.selHandle(cmd.action == LFUN_WORD_BACKWARD_SELECT ||
1302                                 cmd.action == LFUN_WORD_LEFT_SELECT ||
1303                                 cmd.action == LFUN_LINE_BEGIN_SELECT);
1304                 cur.macroModeClose();
1305                 if (cur.pos() != 0) {
1306                         cur.pos() = 0;
1307                 } else if (cur.idx() % cur.ncols() != 0) {
1308                         cur.idx() -= cur.idx() % cur.ncols();
1309                         cur.pos() = 0;
1310                 } else if (cur.idx() != 0) {
1311                         cur.idx() = 0;
1312                         cur.pos() = 0;
1313                 } else {
1314                         cmd = FuncRequest(LFUN_FINISHED_BACKWARD);
1315                         cur.undispatched();
1316                 }
1317                 break;
1318
1319         case LFUN_WORD_FORWARD_SELECT:
1320         case LFUN_WORD_FORWARD:
1321         case LFUN_WORD_RIGHT_SELECT:
1322         case LFUN_WORD_RIGHT:
1323         case LFUN_LINE_END_SELECT:
1324         case LFUN_LINE_END:
1325                 cur.selHandle(cmd.action == LFUN_WORD_FORWARD_SELECT ||
1326                                 cmd.action == LFUN_WORD_RIGHT_SELECT ||
1327                                 cmd.action == LFUN_LINE_END_SELECT);
1328                 cur.macroModeClose();
1329                 cur.clearTargetX();
1330                 if (cur.pos() != cur.lastpos()) {
1331                         cur.pos() = cur.lastpos();
1332                 } else if ((cur.idx() + 1) % cur.ncols() != 0) {
1333                         cur.idx() += cur.ncols() - 1 - cur.idx() % cur.ncols();
1334                         cur.pos() = cur.lastpos();
1335                 } else if (cur.idx() != cur.lastidx()) {
1336                         cur.idx() = cur.lastidx();
1337                         cur.pos() = cur.lastpos();
1338                 } else {
1339                         cmd = FuncRequest(LFUN_FINISHED_FORWARD);
1340                         cur.undispatched();
1341                 }
1342                 break;
1343
1344         default:
1345                 InsetMathNest::doDispatch(cur, cmd);
1346         }
1347 }
1348
1349
1350 bool InsetMathGrid::getStatus(Cursor & cur, FuncRequest const & cmd,
1351                 FuncStatus & status) const
1352 {
1353         switch (cmd.action) {
1354         case LFUN_TABULAR_FEATURE: {
1355                 string const s = to_utf8(cmd.argument());
1356                 if (nrows() <= 1 && (s == "delete-row" || s == "swap-row")) {
1357                         status.enabled(false);
1358                         status.message(from_utf8(N_("Only one row")));
1359                         return true;
1360                 }
1361                 if (ncols() <= 1 &&
1362                     (s == "delete-column" || s == "swap-column")) {
1363                         status.enabled(false);
1364                         status.message(from_utf8(N_("Only one column")));
1365                         return true;
1366                 }
1367                 if ((rowinfo_[cur.row()].lines_ == 0 &&
1368                      s == "delete-hline-above") ||
1369                     (rowinfo_[cur.row() + 1].lines_ == 0 &&
1370                      s == "delete-hline-below")) {
1371                         status.enabled(false);
1372                         status.message(from_utf8(N_("No hline to delete")));
1373                         return true;
1374                 }
1375
1376                 if ((colinfo_[cur.col()].lines_ == 0 &&
1377                      s == "delete-vline-left") ||
1378                     (colinfo_[cur.col() + 1].lines_ == 0 &&
1379                      s == "delete-vline-right")) {
1380                         status.enabled(false);
1381                         status.message(from_utf8(N_("No vline to delete")));
1382                         return true;
1383                 }
1384                 if (s == "valign-top" || s == "valign-middle" ||
1385                     s == "valign-bottom" || s == "align-left" ||
1386                     s == "align-right" || s == "align-center" ||
1387                     s == "append-row" || s == "delete-row" ||
1388                     s == "copy-row" || s == "swap-row" ||
1389                     s == "add-hline-above" || s == "add-hline-below" ||
1390                     s == "delete-hline-above" || s == "delete-hline-below" ||
1391                     s == "append-column" || s == "delete-column" ||
1392                     s == "copy-column" || s == "swap-column" ||
1393                     s == "add-vline-left" || s == "add-vline-right" ||
1394                     s == "delete-vline-left" || s == "delete-vline-right")
1395                         status.enabled(true);
1396                 else {
1397                         status.enabled(false);
1398                         status.message(bformat(
1399                                 from_utf8(N_("Unknown tabular feature '%1$s'")), lyx::from_ascii(s)));
1400                 }
1401
1402                 status.setOnOff((s == "align-left" && halign(cur.col()) == 'l')
1403                            || (s == "align-right"   && halign(cur.col()) == 'r')
1404                            || (s == "align-center"  && halign(cur.col()) == 'c')
1405                            || (s == "valign-top"    && valign() == 't')
1406                            || (s == "valign-bottom" && valign() == 'b')
1407                            || (s == "valign-middle" && valign() == 'm'));
1408
1409 #if 0
1410                 // FIXME: What did this code do?
1411                 // Please check whether it is still needed!
1412                 // should be more precise
1413                 if (v_align_ == '\0') {
1414                         status.enable(true);
1415                         break;
1416                 }
1417                 if (cmd.argument().empty()) {
1418                         status.enable(false);
1419                         break;
1420                 }
1421                 if (!contains("tcb", cmd.argument()[0])) {
1422                         status.enable(false);
1423                         break;
1424                 }
1425                 status.setOnOff(cmd.argument()[0] == v_align_);
1426                 status.enabled(true);
1427 #endif
1428                 return true;
1429         }
1430
1431         case LFUN_CELL_SPLIT:
1432                 status.enabled(true);
1433                 return true;
1434
1435         case LFUN_CELL_BACKWARD:
1436         case LFUN_CELL_FORWARD:
1437                 status.enabled(true);
1438                 return true;
1439
1440         default:
1441                 return InsetMathNest::getStatus(cur, cmd, status);
1442         }
1443 }
1444
1445
1446 } // namespace lyx