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 #include <algorithm>
  13
  14 #include "InsetMathGrid.h"
  15
  16 #include "MathData.h"
  17 #include "MathParser.h"
  18 #include "MathStream.h"
  19 #include "MetricsInfo.h"
  20
  21 #include "BufferView.h"
  22 #include "CutAndPaste.h"
  23 #include "FuncStatus.h"
  24 #include "Cursor.h"
  25 #include "FuncRequest.h"
  26
  27 #include "frontends/Clipboard.h"
  28 #include "frontends/Painter.h"
  29
  30 #include "support/debug.h"
  31 #include "support/docstream.h"
  32 #include "support/gettext.h"
  33 #include "support/lstrings.h"
  34
  35 #include "support/lassert.h"
  36
  37 #include <sstream>
  38
  39 using namespace std;
  40 using namespace lyx::support;
  41
  42
  43 namespace lyx {
  44
  45 static docstring verboseHLine(int n)
  46 {
  47         docstring res;
  48         for (int i = 0; i < n; ++i)
  49                 res += "\\hline";
  50         if (n)
  51                 res += ' ';
  52         return res;
  53 }
  54
  55
  56 static int extractInt(istream & is)
  57 {
  58         int num = 1;
  59         is >> num;
  60         return (num == 0) ? 1 : num;
  61 }
  62
  63
  64
  65 //////////////////////////////////////////////////////////////
  66
  67
  68 InsetMathGrid::CellInfo::CellInfo()
  69         : dummy_(false)
  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()
 102         : InsetMathNest(1),
 103           rowinfo_(1 + 1),
 104                 colinfo_(1 + 1),
 105                 cellinfo_(1),
 106                 v_align_('c')
 107 {
 108         setDefaults();
 109 }
 110
 111
 112 InsetMathGrid::InsetMathGrid(col_type m, row_type n)
 113         : InsetMathNest(m * n),
 114           rowinfo_(n + 1),
 115                 colinfo_(m + 1),
 116                 cellinfo_(m * n),
 117                 v_align_('c')
 118 {
 119         setDefaults();
 120 }
 121
 122
 123 InsetMathGrid::InsetMathGrid(col_type m, row_type n, char v, docstring const & h)
 124         : InsetMathNest(m * n),
 125           rowinfo_(n + 1),
 126           colinfo_(m + 1),
 127                 cellinfo_(m * n),
 128                 v_align_(v)
 129 {
 130         setDefaults();
 131         setVerticalAlignment(v);
 132         setHorizontalAlignments(h);
 133 }
 134
 135
 136 Inset * InsetMathGrid::clone() const
 137 {
 138         return new InsetMathGrid(*this);
 139 }
 140
 141
 142 InsetMath::idx_type InsetMathGrid::index(row_type row, col_type col) const
 143 {
 144         return col + ncols() * row;
 145 }
 146
 147
 148 void InsetMathGrid::setDefaults()
 149 {
 150         if (ncols() <= 0)
 151                 lyxerr << "positive number of columns expected" << endl;
 152         //if (nrows() <= 0)
 153         //      lyxerr << "positive number of rows expected" << endl;
 154         for (col_type col = 0; col < ncols(); ++col) {
 155                 colinfo_[col].align_ = defaultColAlign(col);
 156                 colinfo_[col].skip_  = defaultColSpace(col);
 157                 colinfo_[col].special_.clear();
 158         }
 159 }
 160
 161
 162 void InsetMathGrid::setHorizontalAlignments(docstring const & hh)
 163 {
 164         col_type col = 0;
 165         for (docstring::const_iterator it = hh.begin(); it != hh.end(); ++it) {
 166                 char_type c = *it;
 167                 if (c == '|') {
 168                         colinfo_[col].lines_++;
 169                 } else if ((c == 'p' || c == 'm' || c == 'b'||
 170                             c == '!' || c == '@' || c == '>' || c == '<') &&
 171                            it + 1 != hh.end() && *(it + 1) == '{') {
 172                         // @{decl.} and p{width} are standard LaTeX, the
 173                         // others are extensions by array.sty
 174                         bool const newcolumn = c == 'p' || c == 'm' || c == 'b';
 175                         if (newcolumn) {
 176                                 // this declares a new column
 177                                 if (col >= ncols())
 178                                         // Only intercolumn stuff is allowed
 179                                         // in the last dummy column
 180                                         break;
 181                                 colinfo_[col].align_ = 'l';
 182                         } else {
 183                                 // this is intercolumn stuff
 184                                 if (colinfo_[col].special_.empty())
 185                                         // Overtake possible lines
 186                                         colinfo_[col].special_ = docstring(colinfo_[col].lines_, '|');
 187                         }
 188                         int brace_open = 0;
 189                         int brace_close = 0;
 190                         while (it != hh.end()) {
 191                                 c = *it;
 192                                 colinfo_[col].special_ += c;
 193                                 if (c == '{')
 194                                         ++brace_open;
 195                                 else if (c == '}')
 196                                         ++brace_close;
 197                                 ++it;
 198                                 if (brace_open > 0 && brace_open == brace_close)
 199                                         break;
 200                         }
 201                         --it;
 202                         if (newcolumn) {
 203                                 colinfo_[col].lines_ = count(
 204                                         colinfo_[col].special_.begin(),
 205                                         colinfo_[col].special_.end(), '|');
 206                                 LYXERR(Debug::MATHED, "special column separator: `"
 207                                         << to_utf8(colinfo_[col].special_) << '\'');
 208                                 ++col;
 209                                 colinfo_[col].lines_ = 0;
 210                                 colinfo_[col].special_.clear();
 211                         }
 212                 } else if (col >= ncols()) {
 213                         // Only intercolumn stuff is allowed in the last
 214                         // dummy column
 215                         break;
 216                 } else if (c == 'c' || c == 'l' || c == 'r') {
 217                         colinfo_[col].align_ = static_cast<char>(c);
 218                         if (!colinfo_[col].special_.empty()) {
 219                                 colinfo_[col].special_ += c;
 220                                 colinfo_[col].lines_ = count(
 221                                                 colinfo_[col].special_.begin(),
 222                                                 colinfo_[col].special_.end(), '|');
 223                                 LYXERR(Debug::MATHED, "special column separator: `"
 224                                         << to_utf8(colinfo_[col].special_) << '\'');
 225                         }
 226                         ++col;
 227                         colinfo_[col].lines_ = 0;
 228                         colinfo_[col].special_.clear();
 229                 } else {
 230                         lyxerr << "unknown column separator: '" << c << "'" << endl;
 231                 }
 232         }
 233
 234 /*
 235         col_type n = hh.size();
 236         if (n > ncols())
 237                 n = ncols();
 238         for (col_type col = 0; col < n; ++col)
 239                 colinfo_[col].align_ = hh[col];
 240 */
 241 }
 242
 243
 244 InsetMathGrid::col_type InsetMathGrid::guessColumns(docstring const & hh)
 245 {
 246         col_type col = 0;
 247         for (docstring::const_iterator it = hh.begin(); it != hh.end(); ++it)
 248                 if (*it == 'c' || *it == 'l' || *it == 'r'||
 249                     *it == 'p' || *it == 'm' || *it == 'b')
 250                         ++col;
 251         // let's have at least one column, even if we did not recognize its
 252         // alignment
 253         if (col == 0)
 254                 col = 1;
 255         return col;
 256 }
 257
 258
 259 void InsetMathGrid::setHorizontalAlignment(char h, col_type col)
 260 {
 261         colinfo_[col].align_ = h;
 262         if (!colinfo_[col].special_.empty()) {
 263                 char_type & c = colinfo_[col].special_[colinfo_[col].special_.size() - 1];
 264                 if (c == 'l' || c == 'c' || c == 'r')
 265                         c = h;
 266         }
 267         // FIXME: Change alignment of p, m and b columns, too
 268 }
 269
 270
 271 char InsetMathGrid::horizontalAlignment(col_type col) const
 272 {
 273         return colinfo_[col].align_;
 274 }
 275
 276
 277 docstring InsetMathGrid::horizontalAlignments() const
 278 {
 279         docstring res;
 280         for (col_type col = 0; col < ncols(); ++col) {
 281                 if (colinfo_[col].special_.empty()) {
 282                         res += docstring(colinfo_[col].lines_, '|');
 283                         res += colinfo_[col].align_;
 284                 } else
 285                         res += colinfo_[col].special_;
 286         }
 287         if (colinfo_[ncols()].special_.empty())
 288                 return res + docstring(colinfo_[ncols()].lines_, '|');
 289         return res + colinfo_[ncols()].special_;
 290 }
 291
 292
 293 void InsetMathGrid::setVerticalAlignment(char c)
 294 {
 295         v_align_ = c;
 296 }
 297
 298
 299 char InsetMathGrid::verticalAlignment() const
 300 {
 301         return v_align_;
 302 }
 303
 304
 305 InsetMathGrid::col_type InsetMathGrid::ncols() const
 306 {
 307         return colinfo_.size() - 1;
 308 }
 309
 310
 311 InsetMathGrid::row_type InsetMathGrid::nrows() const
 312 {
 313         return rowinfo_.size() - 1;
 314 }
 315
 316
 317 InsetMathGrid::col_type InsetMathGrid::col(idx_type idx) const
 318 {
 319         return idx % ncols();
 320 }
 321
 322
 323 InsetMathGrid::row_type InsetMathGrid::row(idx_type idx) const
 324 {
 325         return idx / ncols();
 326 }
 327
 328
 329 void InsetMathGrid::vcrskip(Length const & crskip, row_type row)
 330 {
 331         rowinfo_[row].crskip_ = crskip;
 332 }
 333
 334
 335 Length InsetMathGrid::vcrskip(row_type row) const
 336 {
 337         return rowinfo_[row].crskip_;
 338 }
 339
 340
 341 void InsetMathGrid::metrics(MetricsInfo & mi, Dimension & dim) const
 342 {
 343         // let the cells adjust themselves
 344         InsetMathNest::metrics(mi);
 345
 346         BufferView & bv = *mi.base.bv;
 347
 348         // compute absolute sizes of vertical structure
 349         for (row_type row = 0; row < nrows(); ++row) {
 350                 int asc  = 0;
 351                 int desc = 0;
 352                 for (col_type col = 0; col < ncols(); ++col) {
 353                         Dimension const & dimc = cell(index(row, col)).dimension(bv);
 354                         asc  = max(asc,  dimc.asc);
 355                         desc = max(desc, dimc.des);
 356                 }
 357                 rowinfo_[row].ascent_  = asc;
 358                 rowinfo_[row].descent_ = desc;
 359         }
 360         rowinfo_[0].ascent_       += hlinesep() * rowinfo_[0].lines_;
 361         rowinfo_[nrows()].ascent_  = 0;
 362         rowinfo_[nrows()].descent_ = 0;
 363
 364         // compute vertical offsets
 365         rowinfo_[0].offset_ = 0;
 366         for (row_type row = 1; row <= nrows(); ++row) {
 367                 rowinfo_[row].offset_  =
 368                         rowinfo_[row - 1].offset_  +
 369                         rowinfo_[row - 1].descent_ +
 370                         rowinfo_[row - 1].skipPixels() +
 371                         rowsep() +
 372                         rowinfo_[row].lines_ * hlinesep() +
 373                         rowinfo_[row].ascent_;
 374         }
 375
 376         // adjust vertical offset
 377         int h = 0;
 378         switch (v_align_) {
 379                 case 't':
 380                         h = 0;
 381                         break;
 382                 case 'b':
 383                         h = rowinfo_[nrows() - 1].offset_;
 384                         break;
 385                 default:
 386                         h = rowinfo_[nrows() - 1].offset_ / 2;
 387         }
 388         for (row_type row = 0; row <= nrows(); ++row)
 389                 rowinfo_[row].offset_ -= h;
 390
 391
 392         // compute absolute sizes of horizontal structure
 393         for (col_type col = 0; col < ncols(); ++col) {
 394                 int wid = 0;
 395                 for (row_type row = 0; row < nrows(); ++row)
 396                         wid = max(wid, cell(index(row, col)).dimension(bv).wid);
 397                 colinfo_[col].width_ = wid;
 398         }
 399         colinfo_[ncols()].width_  = 0;
 400
 401         // compute horizontal offsets
 402         colinfo_[0].offset_ = border();
 403         for (col_type col = 1; col <= ncols(); ++col) {
 404                 colinfo_[col].offset_ =
 405                         colinfo_[col - 1].offset_ +
 406                         colinfo_[col - 1].width_ +
 407                         colinfo_[col - 1].skip_ +
 408                         colsep() +
 409                         colinfo_[col].lines_ * vlinesep();
 410         }
 411
 412
 413         dim.wid   =   colinfo_[ncols() - 1].offset_
 414                        + colinfo_[ncols() - 1].width_
 415                  + vlinesep() * colinfo_[ncols()].lines_
 416                        + border();
 417
 418         dim.asc  = - rowinfo_[0].offset_
 419                        + rowinfo_[0].ascent_
 420                  + hlinesep() * rowinfo_[0].lines_
 421                        + border();
 422
 423         dim.des =   rowinfo_[nrows() - 1].offset_
 424                        + rowinfo_[nrows() - 1].descent_
 425                  + hlinesep() * rowinfo_[nrows()].lines_
 426                        + border();
 427
 428
 429 /*
 430         // Increase ws_[i] for 'R' columns (except the first one)
 431         for (int i = 1; i < nc_; ++i)
 432                 if (align_[i] == 'R')
 433                         ws_[i] += 10 * df_width;
 434         // Increase ws_[i] for 'C' column
 435         if (align_[0] == 'C')
 436                 if (ws_[0] < 7 * workwidth / 8)
 437                         ws_[0] = 7 * workwidth / 8;
 438
 439         // Adjust local tabs
 440         width = colsep();
 441         for (cxrow = row_.begin(); cxrow; ++cxrow) {
 442                 int rg = COLSEP;
 443                 int lf = 0;
 444                 for (int i = 0; i < nc_; ++i) {
 445                         bool isvoid = false;
 446                         if (cxrow->getTab(i) <= 0) {
 447                                 cxrow->setTab(i, df_width);
 448                                 isvoid = true;
 449                         }
 450                         switch (align_[i]) {
 451                         case 'l':
 452                                 lf = 0;
 453                                 break;
 454                         case 'c':
 455                                 lf = (ws_[i] - cxrow->getTab(i))/2;
 456                                 break;
 457                         case 'r':
 458                         case 'R':
 459                                 lf = ws_[i] - cxrow->getTab(i);
 460                                 break;
 461                         case 'C':
 462                                 if (cxrow == row_.begin())
 463                                         lf = 0;
 464                                 else if (cxrow.is_last())
 465                                         lf = ws_[i] - cxrow->getTab(i);
 466                                 else
 467                                         lf = (ws_[i] - cxrow->getTab(i))/2;
 468                                 break;
 469                         }
 470                         int const ww = (isvoid) ? lf : lf + cxrow->getTab(i);
 471                         cxrow->setTab(i, lf + rg);
 472                         rg = ws_[i] - ww + colsep();
 473                         if (cxrow == row_.begin())
 474                                 width += ws_[i] + colsep();
 475                 }
 476                 cxrow->setBaseline(cxrow->getBaseline() - ascent);
 477         }
 478 */
 479         metricsMarkers2(dim);
 480         // Cache the inset dimension.
 481         setDimCache(mi, dim);
 482 }
 483
 484
 485 void InsetMathGrid::draw(PainterInfo & pi, int x, int y) const
 486 {
 487         drawWithMargin(pi, x, y, 1, 1);
 488 }
 489
 490
 491 void InsetMathGrid::drawWithMargin(PainterInfo & pi, int x, int y,
 492         int lmargin, int rmargin) const
 493 {
 494         Dimension const dim = dimension(*pi.base.bv);
 495         BufferView const & bv = *pi.base.bv;
 496
 497         for (idx_type idx = 0; idx < nargs(); ++idx)
 498                 cell(idx).draw(pi, x + lmargin + cellXOffset(bv, idx),
 499                         y + cellYOffset(idx));
 500
 501         for (row_type row = 0; row <= nrows(); ++row)
 502                 for (unsigned int i = 0; i < rowinfo_[row].lines_; ++i) {
 503                         int yy = y + rowinfo_[row].offset_ - rowinfo_[row].ascent_
 504                                 - i * hlinesep() - hlinesep()/2 - rowsep()/2;
 505                         pi.pain.line(x + lmargin + 1, yy,
 506                                      x + dim.width() - rmargin - 1, yy,
 507                                      Color_foreground);
 508                 }
 509
 510         for (col_type col = 0; col <= ncols(); ++col)
 511                 for (unsigned int i = 0; i < colinfo_[col].lines_; ++i) {
 512                         int xx = x + lmargin + colinfo_[col].offset_
 513                                 - i * vlinesep() - vlinesep()/2 - colsep()/2;
 514                         pi.pain.line(xx, y - dim.ascent() + 1,
 515                                      xx, y + dim.descent() - 1,
 516                                      Color_foreground);
 517                 }
 518         drawMarkers2(pi, x, y);
 519 }
 520
 521
 522 void InsetMathGrid::metricsT(TextMetricsInfo const & mi, Dimension & dim) const
 523 {
 524         // let the cells adjust themselves
 525         //InsetMathNest::metrics(mi);
 526         for (idx_type i = 0; i < nargs(); ++i)
 527                 cell(i).metricsT(mi, dim);
 528
 529         // compute absolute sizes of vertical structure
 530         for (row_type row = 0; row < nrows(); ++row) {
 531                 int asc  = 0;
 532                 int desc = 0;
 533                 for (col_type col = 0; col < ncols(); ++col) {
 534                         //MathData const & c = cell(index(row, col));
 535                         // FIXME: BROKEN!
 536                         Dimension dimc;
 537                         asc  = max(asc,  dimc.ascent());
 538                         desc = max(desc, dimc.descent());
 539                 }
 540                 rowinfo_[row].ascent_  = asc;
 541                 rowinfo_[row].descent_ = desc;
 542         }
 543         //rowinfo_[0].ascent_       += hlinesep() * rowinfo_[0].lines_;
 544         rowinfo_[nrows()].ascent_  = 0;
 545         rowinfo_[nrows()].descent_ = 0;
 546
 547         // compute vertical offsets
 548         rowinfo_[0].offset_ = 0;
 549         for (row_type row = 1; row <= nrows(); ++row) {
 550                 rowinfo_[row].offset_  =
 551                         rowinfo_[row - 1].offset_  +
 552                         rowinfo_[row - 1].descent_ +
 553                         //rowinfo_[row - 1].skipPixels() +
 554                         1 + //rowsep() +
 555                         //rowinfo_[row].lines_ * hlinesep() +
 556                         rowinfo_[row].ascent_;
 557         }
 558
 559         // adjust vertical offset
 560         int h = 0;
 561         switch (v_align_) {
 562                 case 't':
 563                         h = 0;
 564                         break;
 565                 case 'b':
 566                         h = rowinfo_[nrows() - 1].offset_;
 567                         break;
 568                 default:
 569                         h = rowinfo_[nrows() - 1].offset_ / 2;
 570         }
 571         for (row_type row = 0; row <= nrows(); ++row)
 572                 rowinfo_[row].offset_ -= h;
 573
 574
 575         // compute absolute sizes of horizontal structure
 576         for (col_type col = 0; col < ncols(); ++col) {
 577                 int wid = 0;
 578                 for (row_type row = 0; row < nrows(); ++row) {
 579                         // FIXME: BROKEN!
 580                         //wid = max(wid, cell(index(row, col)).width());
 581                 }
 582                 colinfo_[col].width_ = wid;
 583         }
 584         colinfo_[ncols()].width_  = 0;
 585
 586         // compute horizontal offsets
 587         colinfo_[0].offset_ = border();
 588         for (col_type col = 1; col <= ncols(); ++col) {
 589                 colinfo_[col].offset_ =
 590                         colinfo_[col - 1].offset_ +
 591                         colinfo_[col - 1].width_ +
 592                         colinfo_[col - 1].skip_ +
 593                         1 ; //colsep() +
 594                         //colinfo_[col].lines_ * vlinesep();
 595         }
 596
 597
 598         dim.wid  =  colinfo_[ncols() - 1].offset_
 599                        + colinfo_[ncols() - 1].width_
 600                  //+ vlinesep() * colinfo_[ncols()].lines_
 601                        + 2;
 602
 603         dim.asc  = -rowinfo_[0].offset_
 604                        + rowinfo_[0].ascent_
 605                  //+ hlinesep() * rowinfo_[0].lines_
 606                        + 1;
 607
 608         dim.des  =  rowinfo_[nrows() - 1].offset_
 609                        + rowinfo_[nrows() - 1].descent_
 610                  //+ hlinesep() * rowinfo_[nrows()].lines_
 611                        + 1;
 612 }
 613
 614
 615 void InsetMathGrid::drawT(TextPainter & /*pain*/, int /*x*/, int /*y*/) const
 616 {
 617 //      for (idx_type idx = 0; idx < nargs(); ++idx)
 618 //              cell(idx).drawT(pain, x + cellXOffset(idx), y + cellYOffset(idx));
 619 }
 620
 621
 622 docstring InsetMathGrid::eolString(row_type row, bool emptyline, bool fragile) const
 623 {
 624         docstring eol;
 625
 626         if (!rowinfo_[row].crskip_.zero())
 627                 eol += '[' + from_utf8(rowinfo_[row].crskip_.asLatexString()) + ']';
 628         else if(!rowinfo_[row].allow_newpage_)
 629                 eol += '*';
 630
 631         // make sure an upcoming '[' does not break anything
 632         if (row + 1 < nrows()) {
 633                 MathData const & c = cell(index(row + 1, 0));
 634                 if (c.size() && c.front()->getChar() == '[')
 635                         //eol += "[0pt]";
 636                         eol += "{}";
 637         }
 638
 639         // only add \\ if necessary
 640         if (eol.empty() && row + 1 == nrows() && (nrows() == 1 || !emptyline))
 641                 return docstring();
 642
 643         return (fragile ? "\\protect\\\\" : "\\\\") + eol;
 644 }
 645
 646
 647 docstring InsetMathGrid::eocString(col_type col, col_type lastcol) const
 648 {
 649         if (col + 1 == lastcol)
 650                 return docstring();
 651         return from_ascii(" & ");
 652 }
 653
 654
 655 void InsetMathGrid::addRow(row_type row)
 656 {
 657         rowinfo_.insert(rowinfo_.begin() + row + 1, RowInfo());
 658         cells_.insert
 659                 (cells_.begin() + (row + 1) * ncols(), ncols(), MathData());
 660         cellinfo_.insert
 661                 (cellinfo_.begin() + (row + 1) * ncols(), ncols(), CellInfo());
 662 }
 663
 664
 665 void InsetMathGrid::appendRow()
 666 {
 667         rowinfo_.push_back(RowInfo());
 668         //cells_.insert(cells_.end(), ncols(), MathData());
 669         for (col_type col = 0; col < ncols(); ++col) {
 670                 cells_.push_back(cells_type::value_type());
 671                 cellinfo_.push_back(CellInfo());
 672         }
 673 }
 674
 675
 676 void InsetMathGrid::delRow(row_type row)
 677 {
 678         if (nrows() == 1)
 679                 return;
 680
 681         cells_type::iterator it = cells_.begin() + row * ncols();
 682         cells_.erase(it, it + ncols());
 683
 684         vector<CellInfo>::iterator jt = cellinfo_.begin() + row * ncols();
 685         cellinfo_.erase(jt, jt + ncols());
 686
 687         rowinfo_.erase(rowinfo_.begin() + row);
 688 }
 689
 690
 691 void InsetMathGrid::copyRow(row_type row)
 692 {
 693         addRow(row);
 694         for (col_type col = 0; col < ncols(); ++col)
 695                 cells_[(row + 1) * ncols() + col] = cells_[row * ncols() + col];
 696 }
 697
 698
 699 void InsetMathGrid::swapRow(row_type row)
 700 {
 701         if (nrows() == 1)
 702                 return;
 703         if (row + 1 == nrows())
 704                 --row;
 705         for (col_type col = 0; col < ncols(); ++col)
 706                 swap(cells_[row * ncols() + col], cells_[(row + 1) * ncols() + col]);
 707 }
 708
 709
 710 void InsetMathGrid::addCol(col_type newcol)
 711 {
 712         const col_type nc = ncols();
 713         const row_type nr = nrows();
 714         cells_type new_cells((nc + 1) * nr);
 715         vector<CellInfo> new_cellinfo((nc + 1) * nr);
 716
 717         for (row_type row = 0; row < nr; ++row)
 718                 for (col_type col = 0; col < nc; ++col) {
 719                         new_cells[row * (nc + 1) + col + (col >= newcol)]
 720                                 = cells_[row * nc + col];
 721                         new_cellinfo[row * (nc + 1) + col + (col >= newcol)]
 722                                 = cellinfo_[row * nc + col];
 723                 }
 724         swap(cells_, new_cells);
 725         swap(cellinfo_, new_cellinfo);
 726
 727         ColInfo inf;
 728         inf.skip_  = defaultColSpace(newcol);
 729         inf.align_ = defaultColAlign(newcol);
 730         colinfo_.insert(colinfo_.begin() + newcol, inf);
 731 }
 732
 733
 734 void InsetMathGrid::delCol(col_type col)
 735 {
 736         if (ncols() == 1)
 737                 return;
 738
 739         cells_type tmpcells;
 740         vector<CellInfo> tmpcellinfo;
 741         for (col_type i = 0; i < nargs(); ++i)
 742                 if (i % ncols() != col) {
 743                         tmpcells.push_back(cells_[i]);
 744                         tmpcellinfo.push_back(cellinfo_[i]);
 745                 }
 746         swap(cells_, tmpcells);
 747         swap(cellinfo_, tmpcellinfo);
 748
 749         colinfo_.erase(colinfo_.begin() + col);
 750 }
 751
 752
 753 void InsetMathGrid::copyCol(col_type col)
 754 {
 755         addCol(col);
 756         for (row_type row = 0; row < nrows(); ++row)
 757                 cells_[row * ncols() + col + 1] = cells_[row * ncols() + col];
 758 }
 759
 760
 761 void InsetMathGrid::swapCol(col_type col)
 762 {
 763         if (ncols() == 1)
 764                 return;
 765         if (col + 1 == ncols())
 766                 --col;
 767         for (row_type row = 0; row < nrows(); ++row)
 768                 swap(cells_[row * ncols() + col], cells_[row * ncols() + col + 1]);
 769 }
 770
 771
 772 int InsetMathGrid::cellXOffset(BufferView const & bv, idx_type idx) const
 773 {
 774         col_type c = col(idx);
 775         int x = colinfo_[c].offset_;
 776         char align = colinfo_[c].align_;
 777         Dimension const & celldim = cell(idx).dimension(bv);
 778         if (align == 'r' || align == 'R')
 779                 x += colinfo_[c].width_ - celldim.wid;
 780         if (align == 'c' || align == 'C')
 781                 x += (colinfo_[c].width_ - celldim.wid) / 2;
 782         return x;
 783 }
 784
 785
 786 int InsetMathGrid::cellYOffset(idx_type idx) const
 787 {
 788         return rowinfo_[row(idx)].offset_;
 789 }
 790
 791
 792 bool InsetMathGrid::idxUpDown(Cursor & cur, bool up) const
 793 {
 794         if (up) {
 795                 if (cur.row() == 0)
 796                         return false;
 797                 cur.idx() -= ncols();
 798         } else {
 799                 if (cur.row() + 1 >= nrows())
 800                         return false;
 801                 cur.idx() += ncols();
 802         }
 803         cur.pos() = cur.cell().x2pos(&cur.bv(), cur.x_target() - cur.cell().xo(cur.bv()));
 804         return true;
 805 }
 806
 807
 808 bool InsetMathGrid::idxBackward(Cursor & cur) const
 809 {
 810         // leave matrix if at the front edge
 811         if (cur.col() == 0)
 812                 return false;
 813         --cur.idx();
 814         cur.pos() = cur.lastpos();
 815         return true;
 816 }
 817
 818
 819 bool InsetMathGrid::idxForward(Cursor & cur) const
 820 {
 821         // leave matrix if at the back edge
 822         if (cur.col() + 1 == ncols())
 823                 return false;
 824         ++cur.idx();
 825         cur.pos() = 0;
 826         return true;
 827 }
 828
 829
 830 bool InsetMathGrid::idxFirst(Cursor & cur) const
 831 {
 832         switch (v_align_) {
 833                 case 't':
 834                         cur.idx() = 0;
 835                         break;
 836                 case 'b':
 837                         cur.idx() = (nrows() - 1) * ncols();
 838                         break;
 839                 default:
 840                         cur.idx() = ((nrows() - 1) / 2) * ncols();
 841         }
 842         cur.pos() = 0;
 843         return true;
 844 }
 845
 846
 847 bool InsetMathGrid::idxLast(Cursor & cur) const
 848 {
 849         switch (v_align_) {
 850                 case 't':
 851                         cur.idx() = ncols() - 1;
 852                         break;
 853                 case 'b':
 854                         cur.idx() = nargs() - 1;
 855                         break;
 856                 default:
 857                         cur.idx() = ((nrows() - 1) / 2 + 1) * ncols() - 1;
 858         }
 859         cur.pos() = cur.lastpos();
 860         return true;
 861 }
 862
 863
 864 bool InsetMathGrid::idxDelete(idx_type & idx)
 865 {
 866         // nothing to do if we have just one row
 867         if (nrows() == 1)
 868                 return false;
 869
 870         // nothing to do if we are in the middle of the last row of the inset
 871         if (idx + ncols() > nargs())
 872                 return false;
 873
 874         // try to delete entire sequence of ncols() empty cells if possible
 875         for (idx_type i = idx; i < idx + ncols(); ++i)
 876                 if (cell(i).size())
 877                         return false;
 878
 879         // move cells if necessary
 880         for (idx_type i = index(row(idx), 0); i < idx; ++i)
 881                 swap(cell(i), cell(i + ncols()));
 882
 883         delRow(row(idx));
 884
 885         if (idx >= nargs())
 886                 idx = nargs() - 1;
 887
 888         // undo effect of Ctrl-Tab (i.e. pull next cell)
 889         //if (idx + 1 != nargs())
 890         //      cell(idx).swap(cell(idx + 1));
 891
 892         // we handled the event..
 893         return true;
 894 }
 895
 896
 897 // reimplement old behaviour when pressing Delete in the last position
 898 // of a cell
 899 void InsetMathGrid::idxGlue(idx_type idx)
 900 {
 901         col_type c = col(idx);
 902         if (c + 1 == ncols()) {
 903                 if (row(idx) + 1 != nrows()) {
 904                         for (col_type cc = 0; cc < ncols(); ++cc)
 905                                 cell(idx).append(cell(idx + cc + 1));
 906                         delRow(row(idx) + 1);
 907                 }
 908         } else {
 909                 cell(idx).append(cell(idx + 1));
 910                 for (col_type cc = c + 2; cc < ncols(); ++cc)
 911                         cell(idx - c + cc - 1) = cell(idx - c + cc);
 912                 cell(idx - c + ncols() - 1).clear();
 913         }
 914 }
 915
 916
 917 InsetMathGrid::RowInfo const & InsetMathGrid::rowinfo(row_type row) const
 918 {
 919         return rowinfo_[row];
 920 }
 921
 922
 923 InsetMathGrid::RowInfo & InsetMathGrid::rowinfo(row_type row)
 924 {
 925         return rowinfo_[row];
 926 }
 927
 928
 929 bool InsetMathGrid::idxBetween(idx_type idx, idx_type from, idx_type to) const
 930 {
 931         row_type const ri = row(idx);
 932         row_type const r1 = min(row(from), row(to));
 933         row_type const r2 = max(row(from), row(to));
 934         col_type const ci = col(idx);
 935         col_type const c1 = min(col(from), col(to));
 936         col_type const c2 = max(col(from), col(to));
 937         return r1 <= ri && ri <= r2 && c1 <= ci && ci <= c2;
 938 }
 939
 940
 941
 942 void InsetMathGrid::normalize(NormalStream & os) const
 943 {
 944         os << "[grid ";
 945         for (row_type row = 0; row < nrows(); ++row) {
 946                 os << "[row ";
 947                 for (col_type col = 0; col < ncols(); ++col)
 948                         os << "[cell " << cell(index(row, col)) << ']';
 949                 os << ']';
 950         }
 951         os << ']';
 952 }
 953
 954
 955 void InsetMathGrid::mathmlize(MathStream & os) const
 956 {
 957         os << MTag("mtable");
 958         for (row_type row = 0; row < nrows(); ++row) {
 959                 os << MTag("mtr");
 960                 for (col_type col = 0; col < ncols(); ++col)
 961                         os << cell(index(row, col));
 962                 os << ETag("mtr");
 963         }
 964         os << ETag("mtable");
 965 }
 966
 967
 968 void InsetMathGrid::write(WriteStream & os) const
 969 {
 970         docstring eol;
 971         for (row_type row = 0; row < nrows(); ++row) {
 972                 os << verboseHLine(rowinfo_[row].lines_);
 973                 // don't write & and empty cells at end of line
 974                 col_type lastcol = 0;
 975                 bool emptyline = true;
 976                 for (col_type col = 0; col < ncols(); ++col)
 977                         if (!cell(index(row, col)).empty()) {
 978                                 lastcol = col + 1;
 979                                 emptyline = false;
 980                         }
 981                 for (col_type col = 0; col < lastcol; ++col)
 982                         os << cell(index(row, col)) << eocString(col, lastcol);
 983                 eol = eolString(row, emptyline, os.fragile());
 984                 os << eol;
 985                 // append newline only if line wasn't completely empty
 986                 // and this was not the last line in the grid
 987                 if (!emptyline && row + 1 < nrows())
 988                         os << "\n";
 989         }
 990         docstring const s = verboseHLine(rowinfo_[nrows()].lines_);
 991         if (!s.empty()) {
 992                 if (eol.empty()) {
 993                         if (os.fragile())
 994                                 os << "\\protect";
 995                         os << "\\\\";
 996                 }
 997                 os << s;
 998         }
 999 }
1000
1001
1002 int InsetMathGrid::colsep() const
1003 {
1004         return 6;
1005 }
1006
1007
1008 int InsetMathGrid::rowsep() const
1009 {
1010         return 6;
1011 }
1012
1013
1014 int InsetMathGrid::hlinesep() const
1015 {
1016         return 3;
1017 }
1018
1019
1020 int InsetMathGrid::vlinesep() const
1021 {
1022         return 3;
1023 }
1024
1025
1026 int InsetMathGrid::border() const
1027 {
1028         return 1;
1029 }
1030
1031
1032 void InsetMathGrid::splitCell(Cursor & cur)
1033 {
1034         if (cur.idx() == cur.lastidx())
1035                 return;
1036         MathData ar = cur.cell();
1037         ar.erase(0, cur.pos());
1038         cur.cell().erase(cur.pos(), cur.lastpos());
1039         ++cur.idx();
1040         cur.pos() = 0;
1041         cur.cell().insert(0, ar);
1042 }
1043
1044
1045 void InsetMathGrid::doDispatch(Cursor & cur, FuncRequest & cmd)
1046 {
1047         //lyxerr << "*** InsetMathGrid: request: " << cmd << endl;
1048         switch (cmd.action) {
1049
1050         // insert file functions
1051         case LFUN_LINE_DELETE:
1052                 // FIXME: We use recordUndoInset when a change reflects more
1053                 // than one cell, because recordUndo does not work for
1054                 // multiple cells. Unfortunately this puts the cursor in front
1055                 // of the inset after undo. This is (especilally for large
1056                 // grids) annoying.
1057                 cur.recordUndoInset();
1058                 //autocorrect_ = false;
1059                 //macroModeClose();
1060                 //if (selection_) {
1061                 //      selDel();
1062                 //      break;
1063                 //}
1064                 if (nrows() > 1)
1065                         delRow(cur.row());
1066                 if (cur.idx() > cur.lastidx())
1067                         cur.idx() = cur.lastidx();
1068                 if (cur.pos() > cur.lastpos())
1069                         cur.pos() = cur.lastpos();
1070                 break;
1071
1072         case LFUN_CELL_SPLIT:
1073                 cur.recordUndo();
1074                 splitCell(cur);
1075                 break;
1076
1077         case LFUN_CELL_BACKWARD:
1078                 // See below.
1079                 cur.selection() = false;
1080                 if (!idxPrev(cur)) {
1081                         cmd = FuncRequest(LFUN_FINISHED_BACKWARD);
1082                         cur.undispatched();
1083                 }
1084                 break;
1085
1086         case LFUN_CELL_FORWARD:
1087                 // Can't handle selection by additional 'shift' as this is
1088                 // hard bound to LFUN_CELL_BACKWARD
1089                 cur.selection() = false;
1090                 if (!idxNext(cur)) {
1091                         cmd = FuncRequest(LFUN_FINISHED_FORWARD);
1092                         cur.undispatched();
1093                 }
1094                 break;
1095
1096         case LFUN_NEWLINE_INSERT: {
1097                 cur.recordUndoInset();
1098                 row_type const r = cur.row();
1099                 addRow(r);
1100
1101                 // split line
1102                 for (col_type c = col(cur.idx()) + 1; c < ncols(); ++c)
1103                         swap(cell(index(r, c)), cell(index(r + 1, c)));
1104
1105                 // split cell
1106                 splitCell(cur);
1107                 swap(cell(cur.idx()), cell(cur.idx() + ncols() - 1));
1108                 if (cur.idx() > 0)
1109                         --cur.idx();
1110                 cur.pos() = cur.lastpos();
1111
1112                 //mathcursor->normalize();
1113                 //cmd = FuncRequest(LFUN_FINISHED_BACKWARD);
1114                 break;
1115         }
1116
1117         case LFUN_TABULAR_FEATURE: {
1118                 cur.recordUndoInset();
1119                 //lyxerr << "handling tabular-feature " << to_utf8(cmd.argument()) << endl;
1120                 istringstream is(to_utf8(cmd.argument()));
1121                 string s;
1122                 is >> s;
1123                 if (s == "valign-top")
1124                         setVerticalAlignment('t');
1125                 else if (s == "valign-middle")
1126                         setVerticalAlignment('c');
1127                 else if (s == "valign-bottom")
1128                         setVerticalAlignment('b');
1129                 else if (s == "align-left")
1130                         setHorizontalAlignment('l', cur.col());
1131                 else if (s == "align-right")
1132                         setHorizontalAlignment('r', cur.col());
1133                 else if (s == "align-center")
1134                         setHorizontalAlignment('c', cur.col());
1135                 else if (s == "append-row")
1136                         for (int i = 0, n = extractInt(is); i < n; ++i)
1137                                 addRow(cur.row());
1138                 else if (s == "delete-row") {
1139                         cur.clearSelection(); // bug 4323
1140                         for (int i = 0, n = extractInt(is); i < n; ++i) {
1141                                 delRow(cur.row());
1142                                 if (cur.idx() >= nargs())
1143                                         cur.idx() -= ncols();
1144                         }
1145                         cur.pos() = 0; // trick, see below
1146                 }
1147                 else if (s == "copy-row") {
1148                         // Here (as later) we save the cursor col/row
1149                         // in order to restore it after operation.
1150                         row_type const r = cur.row();
1151                         col_type const c = cur.col();
1152                         for (int i = 0, n = extractInt(is); i < n; ++i)
1153                                 copyRow(cur.row());
1154                         cur.idx() = index(r, c);
1155                 }
1156                 else if (s == "swap-row") {
1157                         swapRow(cur.row());
1158                         // Trick to suppress same-idx-means-different-cell
1159                         // assertion crash:
1160                         cur.pos() = 0;
1161                 }
1162                 else if (s == "add-hline-above")
1163                         rowinfo_[cur.row()].lines_++;
1164                 else if (s == "add-hline-below")
1165                         rowinfo_[cur.row()+1].lines_++;
1166                 else if (s == "delete-hline-above")
1167                         rowinfo_[cur.row()].lines_--;
1168                 else if (s == "delete-hline-below")
1169                         rowinfo_[cur.row()+1].lines_--;
1170                 else if (s == "append-column") {
1171                         row_type const r = cur.row();
1172                         col_type const c = cur.col();
1173                         for (int i = 0, n = extractInt(is); i < n; ++i)
1174                                 addCol(cur.col() + 1);
1175                         cur.idx() = index(r, c);
1176                 }
1177                 else if (s == "delete-column") {
1178                         cur.clearSelection(); // bug 4323
1179                         row_type const r = cur.row();
1180                         col_type const c = cur.col();
1181                         for (int i = 0, n = extractInt(is); i < n; ++i)
1182                                 delCol(col(cur.idx()));
1183                         cur.idx() = index(r, min(c, cur.ncols() - 1));
1184                         cur.pos() = 0; // trick, see above
1185                 }
1186                 else if (s == "copy-column") {
1187                         row_type const r = cur.row();
1188                         col_type const c = cur.col();
1189                         copyCol(cur.col());
1190                         cur.idx() = index(r, c);
1191                 }
1192                 else if (s == "swap-column") {
1193                         swapCol(cur.col());
1194                         cur.pos() = 0; // trick, see above
1195                 }
1196                 else if (s == "add-vline-left") {
1197                         colinfo_[cur.col()].lines_++;
1198                         if (!colinfo_[cur.col()].special_.empty())
1199                                 colinfo_[cur.col()].special_ += '|';
1200                 }
1201                 else if (s == "add-vline-right") {
1202                         colinfo_[cur.col()+1].lines_++;
1203                         if (!colinfo_[cur.col()+1].special_.empty())
1204                                 colinfo_[cur.col()+1].special_.insert(0, 1, '|');
1205                 }
1206                 else if (s == "delete-vline-left") {
1207                         colinfo_[cur.col()].lines_--;
1208                         docstring & special = colinfo_[cur.col()].special_;
1209                         if (!special.empty()) {
1210                                 docstring::size_type i = special.rfind('|');
1211                                 LASSERT(i != docstring::npos, /**/);
1212                                 special.erase(i, 1);
1213                         }
1214                 }
1215                 else if (s == "delete-vline-right") {
1216                         colinfo_[cur.col()+1].lines_--;
1217                         docstring & special = colinfo_[cur.col()+1].special_;
1218                         if (!special.empty()) {
1219                                 docstring::size_type i = special.find('|');
1220                                 LASSERT(i != docstring::npos, /**/);
1221                                 special.erase(i, 1);
1222                         }
1223                 }
1224                 else {
1225                         cur.undispatched();
1226                         break;
1227                 }
1228                 // perhaps this should be FINISHED_BACKWARD -- just for clarity?
1229                 lyxerr << "returning FINISHED_LEFT" << endl;
1230                 break;
1231         }
1232
1233         case LFUN_PASTE: {
1234                 cur.message(_("Paste"));
1235                 cap::replaceSelection(cur);
1236                 docstring topaste;
1237                 if (cmd.argument().empty() && !theClipboard().isInternal())
1238                         topaste = theClipboard().getAsText();
1239                 else {
1240                         idocstringstream is(cmd.argument());
1241                         int n = 0;
1242                         is >> n;
1243                         topaste = cap::selection(n);
1244                 }
1245                 InsetMathGrid grid(1, 1);
1246                 if (!topaste.empty())
1247                         mathed_parse_normal(grid, topaste);
1248
1249                 if (grid.nargs() == 1) {
1250                         // single cell/part of cell
1251                         cur.recordUndo();
1252                         cur.cell().insert(cur.pos(), grid.cell(0));
1253                         cur.pos() += grid.cell(0).size();
1254                 } else {
1255                         // multiple cells
1256                         cur.recordUndoInset();
1257                         col_type const numcols =
1258                                 min(grid.ncols(), ncols() - col(cur.idx()));
1259                         row_type const numrows =
1260                                 min(grid.nrows(), nrows() - cur.row());
1261                         for (row_type r = 0; r < numrows; ++r) {
1262                                 for (col_type c = 0; c < numcols; ++c) {
1263                                         idx_type i = index(r + cur.row(), c + col(cur.idx()));
1264                                         cell(i).insert(0, grid.cell(grid.index(r, c)));
1265                                 }
1266                                 // append the left over horizontal cells to the last column
1267                                 idx_type i = index(r + cur.row(), ncols() - 1);
1268                                 for (InsetMath::col_type c = numcols; c < grid.ncols(); ++c)
1269                                         cell(i).append(grid.cell(grid.index(r, c)));
1270                         }
1271                         // append the left over vertical cells to the last _cell_
1272                         idx_type i = nargs() - 1;
1273                         for (row_type r = numrows; r < grid.nrows(); ++r)
1274                                 for (col_type c = 0; c < grid.ncols(); ++c)
1275                                         cell(i).append(grid.cell(grid.index(r, c)));
1276                 }
1277                 cur.clearSelection(); // bug 393
1278                 cur.finishUndo();
1279                 break;
1280         }
1281
1282         case LFUN_LINE_BEGIN_SELECT:
1283         case LFUN_LINE_BEGIN:
1284         case LFUN_WORD_BACKWARD_SELECT:
1285         case LFUN_WORD_BACKWARD:
1286         case LFUN_WORD_LEFT_SELECT:
1287         case LFUN_WORD_LEFT:
1288                 cur.selHandle(cmd.action == LFUN_WORD_BACKWARD_SELECT ||
1289                                 cmd.action == LFUN_WORD_LEFT_SELECT ||
1290                                 cmd.action == LFUN_LINE_BEGIN_SELECT);
1291                 cur.macroModeClose();
1292                 if (cur.pos() != 0) {
1293                         cur.pos() = 0;
1294                 } else if (cur.idx() % cur.ncols() != 0) {
1295                         cur.idx() -= cur.idx() % cur.ncols();
1296                         cur.pos() = 0;
1297                 } else if (cur.idx() != 0) {
1298                         cur.idx() = 0;
1299                         cur.pos() = 0;
1300                 } else {
1301                         cmd = FuncRequest(LFUN_FINISHED_BACKWARD);
1302                         cur.undispatched();
1303                 }
1304                 break;
1305
1306         case LFUN_WORD_FORWARD_SELECT:
1307         case LFUN_WORD_FORWARD:
1308         case LFUN_WORD_RIGHT_SELECT:
1309         case LFUN_WORD_RIGHT:
1310         case LFUN_LINE_END_SELECT:
1311         case LFUN_LINE_END:
1312                 cur.selHandle(cmd.action == LFUN_WORD_FORWARD_SELECT ||
1313                                 cmd.action == LFUN_WORD_RIGHT_SELECT ||
1314                                 cmd.action == LFUN_LINE_END_SELECT);
1315                 cur.macroModeClose();
1316                 cur.clearTargetX();
1317                 if (cur.pos() != cur.lastpos()) {
1318                         cur.pos() = cur.lastpos();
1319                 } else if ((cur.idx() + 1) % cur.ncols() != 0) {
1320                         cur.idx() += cur.ncols() - 1 - cur.idx() % cur.ncols();
1321                         cur.pos() = cur.lastpos();
1322                 } else if (cur.idx() != cur.lastidx()) {
1323                         cur.idx() = cur.lastidx();
1324                         cur.pos() = cur.lastpos();
1325                 } else {
1326                         cmd = FuncRequest(LFUN_FINISHED_FORWARD);
1327                         cur.undispatched();
1328                 }
1329                 break;
1330
1331         default:
1332                 InsetMathNest::doDispatch(cur, cmd);
1333         }
1334 }
1335
1336
1337 bool InsetMathGrid::getStatus(Cursor & cur, FuncRequest const & cmd,
1338                 FuncStatus & status) const
1339 {
1340         switch (cmd.action) {
1341         case LFUN_TABULAR_FEATURE: {
1342                 string const s = to_utf8(cmd.argument());
1343                 if (nrows() <= 1 && (s == "delete-row" || s == "swap-row")) {
1344                         status.enabled(false);
1345                         status.message(from_utf8(N_("Only one row")));
1346                         return true;
1347                 }
1348                 if (ncols() <= 1 &&
1349                     (s == "delete-column" || s == "swap-column")) {
1350                         status.enabled(false);
1351                         status.message(from_utf8(N_("Only one column")));
1352                         return true;
1353                 }
1354                 if ((rowinfo_[cur.row()].lines_ == 0 &&
1355                      s == "delete-hline-above") ||
1356                     (rowinfo_[cur.row() + 1].lines_ == 0 &&
1357                      s == "delete-hline-below")) {
1358                         status.enabled(false);
1359                         status.message(from_utf8(N_("No hline to delete")));
1360                         return true;
1361                 }
1362
1363                 if ((colinfo_[cur.col()].lines_ == 0 &&
1364                      s == "delete-vline-left") ||
1365                     (colinfo_[cur.col() + 1].lines_ == 0 &&
1366                      s == "delete-vline-right")) {
1367                         status.enabled(false);
1368                         status.message(from_utf8(N_("No vline to delete")));
1369                         return true;
1370                 }
1371                 if (s == "valign-top" || s == "valign-middle" ||
1372                     s == "valign-bottom" || s == "align-left" ||
1373                     s == "align-right" || s == "align-center" ||
1374                     s == "append-row" || s == "delete-row" ||
1375                     s == "copy-row" || s == "swap-row" ||
1376                     s == "add-hline-above" || s == "add-hline-below" ||
1377                     s == "delete-hline-above" || s == "delete-hline-below" ||
1378                     s == "append-column" || s == "delete-column" ||
1379                     s == "copy-column" || s == "swap-column" ||
1380                     s == "add-vline-left" || s == "add-vline-right" ||
1381                     s == "delete-vline-left" || s == "delete-vline-right")
1382                         status.enabled(true);
1383                 else {
1384                         status.enabled(false);
1385                         status.message(bformat(
1386                                 from_utf8(N_("Unknown tabular feature '%1$s'")), lyx::from_ascii(s)));
1387                 }
1388
1389                 char const ha = horizontalAlignment(cur.col());
1390                 char const va = verticalAlignment();
1391                 status.setOnOff((s == "align-left" && ha == 'l')
1392                            || (s == "align-right"   && ha == 'r')
1393                            || (s == "align-center"  && ha == 'c')
1394                            || (s == "valign-top"    && va == 't')
1395                            || (s == "valign-bottom" && va == 'b')
1396                            || (s == "valign-middle" && va == 'm'));
1397
1398 #if 0
1399                 // FIXME: What did this code do?
1400                 // Please check whether it is still needed!
1401                 // should be more precise
1402                 if (v_align_ == '\0') {
1403                         status.enable(true);
1404                         break;
1405                 }
1406                 if (cmd.argument().empty()) {
1407                         status.enable(false);
1408                         break;
1409                 }
1410                 if (!contains("tcb", cmd.argument()[0])) {
1411                         status.enable(false);
1412                         break;
1413                 }
1414                 status.setOnOff(cmd.argument()[0] == v_align_);
1415                 status.enabled(true);
1416 #endif
1417                 return true;
1418         }
1419
1420         case LFUN_CELL_SPLIT:
1421                 status.enabled(true);
1422                 return true;
1423
1424         case LFUN_CELL_BACKWARD:
1425         case LFUN_CELL_FORWARD:
1426                 status.enabled(true);
1427                 return true;
1428
1429         default:
1430                 return InsetMathNest::getStatus(cur, cmd, status);
1431         }
1432 }
1433
1434
1435 } // namespace lyx