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
  38 namespace lyx {
  39
  40 using support::bformat;
  41
  42 namespace {
  43
  44 docstring verboseHLine(int n)
  45 {
  46         docstring res;
  47         for (int i = 0; i < n; ++i)
  48                 res += "\\hline";
  49         if (n)
  50                 res += ' ';
  51         return res;
  52 }
  53
  54
  55 int extractInt(istream & is)
  56 {
  57         int num = 1;
  58         is >> num;
  59         return (num == 0) ? 1 : num;
  60 }
  61
  62 }
  63
  64
  65 //////////////////////////////////////////////////////////////
  66
  67
  68 InsetMathGrid::CellInfo::CellInfo()
  69         : dummy_(false)
  70 {}
  71
  72
  73
  74
  75 //////////////////////////////////////////////////////////////
  76
  77
  78 InsetMathGrid::RowInfo::RowInfo()
  79         : lines_(0), skip_(0), allow_newpage_(true)
  80 {}
  81
  82
  83
  84 int InsetMathGrid::RowInfo::skipPixels() const
  85 {
  86         return crskip_.inBP();
  87 }
  88
  89
  90
  91 //////////////////////////////////////////////////////////////
  92
  93
  94 InsetMathGrid::ColInfo::ColInfo()
  95         : align_('c'), lines_(0)
  96 {}
  97
  98
  99 //////////////////////////////////////////////////////////////
 100
 101
 102 InsetMathGrid::InsetMathGrid(char v, docstring const & h)
 103         : InsetMathNest(guessColumns(h)),
 104           rowinfo_(2),
 105           colinfo_(guessColumns(h) + 1),
 106           cellinfo_(1 * guessColumns(h))
 107 {
 108         setDefaults();
 109         valign(v);
 110         halign(h);
 111         //lyxerr << "created grid with " << ncols() << " columns" << endl;
 112 }
 113
 114
 115 InsetMathGrid::InsetMathGrid()
 116         : InsetMathNest(1),
 117           rowinfo_(1 + 1),
 118                 colinfo_(1 + 1),
 119                 cellinfo_(1),
 120                 v_align_('c')
 121 {
 122         setDefaults();
 123 }
 124
 125
 126 InsetMathGrid::InsetMathGrid(col_type m, row_type n)
 127         : InsetMathNest(m * n),
 128           rowinfo_(n + 1),
 129                 colinfo_(m + 1),
 130                 cellinfo_(m * n),
 131                 v_align_('c')
 132 {
 133         setDefaults();
 134 }
 135
 136
 137 InsetMathGrid::InsetMathGrid(col_type m, row_type n, char v, docstring const & h)
 138         : InsetMathNest(m * n),
 139           rowinfo_(n + 1),
 140           colinfo_(m + 1),
 141                 cellinfo_(m * n),
 142                 v_align_(v)
 143 {
 144         setDefaults();
 145         valign(v);
 146         halign(h);
 147 }
 148
 149
 150 Inset * InsetMathGrid::clone() const
 151 {
 152         return new InsetMathGrid(*this);
 153 }
 154
 155
 156 InsetMath::idx_type InsetMathGrid::index(row_type row, col_type col) const
 157 {
 158         return col + ncols() * row;
 159 }
 160
 161
 162 void InsetMathGrid::setDefaults()
 163 {
 164         if (ncols() <= 0)
 165                 lyxerr << "positive number of columns expected" << endl;
 166         //if (nrows() <= 0)
 167         //      lyxerr << "positive number of rows expected" << endl;
 168         for (col_type col = 0; col < ncols(); ++col) {
 169                 colinfo_[col].align_ = defaultColAlign(col);
 170                 colinfo_[col].skip_  = defaultColSpace(col);
 171                 colinfo_[col].special_.clear();
 172         }
 173 }
 174
 175
 176 void InsetMathGrid::halign(docstring const & hh)
 177 {
 178         col_type col = 0;
 179         for (docstring::const_iterator it = hh.begin(); it != hh.end(); ++it) {
 180                 char_type c = *it;
 181                 if (c == '|') {
 182                         colinfo_[col].lines_++;
 183                 } else if ((c == 'p' || c == 'm' || c == 'b'||
 184                             c == '!' || c == '@' || c == '>' || c == '<') &&
 185                            it + 1 != hh.end() && *(it + 1) == '{') {
 186                         // @{decl.} and p{width} are standard LaTeX, the
 187                         // others are extensions by array.sty
 188                         bool const newcolumn = c == 'p' || c == 'm' || c == 'b';
 189                         if (newcolumn) {
 190                                 // this declares a new column
 191                                 if (col >= ncols())
 192                                         // Only intercolumn stuff is allowed
 193                                         // in the last dummy column
 194                                         break;
 195                                 colinfo_[col].align_ = 'l';
 196                         } else {
 197                                 // this is intercolumn stuff
 198                                 if (colinfo_[col].special_.empty())
 199                                         // Overtake possible lines
 200                                         colinfo_[col].special_ = docstring(colinfo_[col].lines_, '|');
 201                         }
 202                         int brace_open = 0;
 203                         int brace_close = 0;
 204                         while (it != hh.end()) {
 205                                 c = *it;
 206                                 colinfo_[col].special_ += c;
 207                                 if (c == '{')
 208                                         ++brace_open;
 209                                 else if (c == '}')
 210                                         ++brace_close;
 211                                 ++it;
 212                                 if (brace_open > 0 && brace_open == brace_close)
 213                                         break;
 214                         }
 215                         --it;
 216                         if (newcolumn) {
 217                                 colinfo_[col].lines_ = count(
 218                                         colinfo_[col].special_.begin(),
 219                                         colinfo_[col].special_.end(), '|');
 220                                 LYXERR(Debug::MATHED, "special column separator: `"
 221                                         << to_utf8(colinfo_[col].special_) << '\'');
 222                                 ++col;
 223                                 colinfo_[col].lines_ = 0;
 224                                 colinfo_[col].special_.clear();
 225                         }
 226                 } else if (col >= ncols()) {
 227                         // Only intercolumn stuff is allowed in the last
 228                         // dummy column
 229                         break;
 230                 } else if (c == 'c' || c == 'l' || c == 'r') {
 231                         colinfo_[col].align_ = static_cast<char>(c);
 232                         if (!colinfo_[col].special_.empty()) {
 233                                 colinfo_[col].special_ += c;
 234                                 colinfo_[col].lines_ = count(
 235                                                 colinfo_[col].special_.begin(),
 236                                                 colinfo_[col].special_.end(), '|');
 237                                 LYXERR(Debug::MATHED, "special column separator: `"
 238                                         << to_utf8(colinfo_[col].special_) << '\'');
 239                         }
 240                         ++col;
 241                         colinfo_[col].lines_ = 0;
 242                         colinfo_[col].special_.clear();
 243                 } else {
 244                         lyxerr << "unknown column separator: '" << c << "'" << endl;
 245                 }
 246         }
 247
 248 /*
 249         col_type n = hh.size();
 250         if (n > ncols())
 251                 n = ncols();
 252         for (col_type col = 0; col < n; ++col)
 253                 colinfo_[col].align_ = hh[col];
 254 */
 255 }
 256
 257
 258 InsetMathGrid::col_type InsetMathGrid::guessColumns(docstring const & hh) const
 259 {
 260         col_type col = 0;
 261         for (docstring::const_iterator it = hh.begin(); it != hh.end(); ++it)
 262                 if (*it == 'c' || *it == 'l' || *it == 'r'||
 263                     *it == 'p' || *it == 'm' || *it == 'b')
 264                         ++col;
 265         // let's have at least one column, even if we did not recognize its
 266         // alignment
 267         if (col == 0)
 268                 col = 1;
 269         return col;
 270 }
 271
 272
 273 void InsetMathGrid::halign(char h, col_type col)
 274 {
 275         colinfo_[col].align_ = h;
 276         if (!colinfo_[col].special_.empty()) {
 277                 char_type & c = colinfo_[col].special_[colinfo_[col].special_.size() - 1];
 278                 if (c == 'l' || c == 'c' || c == 'r')
 279                         c = h;
 280         }
 281         // FIXME: Change alignment of p, m and b columns, too
 282 }
 283
 284
 285 char InsetMathGrid::halign(col_type col) const
 286 {
 287         return colinfo_[col].align_;
 288 }
 289
 290
 291 docstring InsetMathGrid::halign() const
 292 {
 293         docstring res;
 294         for (col_type col = 0; col < ncols(); ++col) {
 295                 if (colinfo_[col].special_.empty()) {
 296                         res += docstring(colinfo_[col].lines_, '|');
 297                         res += colinfo_[col].align_;
 298                 } else
 299                         res += colinfo_[col].special_;
 300         }
 301         if (colinfo_[ncols()].special_.empty())
 302                 return res + docstring(colinfo_[ncols()].lines_, '|');
 303         return res + colinfo_[ncols()].special_;
 304 }
 305
 306
 307 void InsetMathGrid::valign(char c)
 308 {
 309         v_align_ = c;
 310 }
 311
 312
 313 char InsetMathGrid::valign() const
 314 {
 315         return v_align_;
 316 }
 317
 318
 319 InsetMathGrid::col_type InsetMathGrid::ncols() const
 320 {
 321         return colinfo_.size() - 1;
 322 }
 323
 324
 325 InsetMathGrid::row_type InsetMathGrid::nrows() const
 326 {
 327         return rowinfo_.size() - 1;
 328 }
 329
 330
 331 InsetMathGrid::col_type InsetMathGrid::col(idx_type idx) const
 332 {
 333         return idx % ncols();
 334 }
 335
 336
 337 InsetMathGrid::row_type InsetMathGrid::row(idx_type idx) const
 338 {
 339         return idx / ncols();
 340 }
 341
 342
 343 void InsetMathGrid::vcrskip(Length const & crskip, row_type row)
 344 {
 345         rowinfo_[row].crskip_ = crskip;
 346 }
 347
 348
 349 Length InsetMathGrid::vcrskip(row_type row) const
 350 {
 351         return rowinfo_[row].crskip_;
 352 }
 353
 354
 355 void InsetMathGrid::metrics(MetricsInfo & mi, Dimension & dim) const
 356 {
 357         // let the cells adjust themselves
 358         InsetMathNest::metrics(mi);
 359
 360         BufferView & bv = *mi.base.bv;
 361
 362         // compute absolute sizes of vertical structure
 363         for (row_type row = 0; row < nrows(); ++row) {
 364                 int asc  = 0;
 365                 int desc = 0;
 366                 for (col_type col = 0; col < ncols(); ++col) {
 367                         Dimension const & dimc = cell(index(row, col)).dimension(bv);
 368                         asc  = max(asc,  dimc.asc);
 369                         desc = max(desc, dimc.des);
 370                 }
 371                 rowinfo_[row].ascent_  = asc;
 372                 rowinfo_[row].descent_ = desc;
 373         }
 374         rowinfo_[0].ascent_       += hlinesep() * rowinfo_[0].lines_;
 375         rowinfo_[nrows()].ascent_  = 0;
 376         rowinfo_[nrows()].descent_ = 0;
 377
 378         // compute vertical offsets
 379         rowinfo_[0].offset_ = 0;
 380         for (row_type row = 1; row <= nrows(); ++row) {
 381                 rowinfo_[row].offset_  =
 382                         rowinfo_[row - 1].offset_  +
 383                         rowinfo_[row - 1].descent_ +
 384                         rowinfo_[row - 1].skipPixels() +
 385                         rowsep() +
 386                         rowinfo_[row].lines_ * hlinesep() +
 387                         rowinfo_[row].ascent_;
 388         }
 389
 390         // adjust vertical offset
 391         int h = 0;
 392         switch (v_align_) {
 393                 case 't':
 394                         h = 0;
 395                         break;
 396                 case 'b':
 397                         h = rowinfo_[nrows() - 1].offset_;
 398                         break;
 399                 default:
 400                         h = rowinfo_[nrows() - 1].offset_ / 2;
 401         }
 402         for (row_type row = 0; row <= nrows(); ++row)
 403                 rowinfo_[row].offset_ -= h;
 404
 405
 406         // compute absolute sizes of horizontal structure
 407         for (col_type col = 0; col < ncols(); ++col) {
 408                 int wid = 0;
 409                 for (row_type row = 0; row < nrows(); ++row)
 410                         wid = max(wid, cell(index(row, col)).dimension(bv).wid);
 411                 colinfo_[col].width_ = wid;
 412         }
 413         colinfo_[ncols()].width_  = 0;
 414
 415         // compute horizontal offsets
 416         colinfo_[0].offset_ = border();
 417         for (col_type col = 1; col <= ncols(); ++col) {
 418                 colinfo_[col].offset_ =
 419                         colinfo_[col - 1].offset_ +
 420                         colinfo_[col - 1].width_ +
 421                         colinfo_[col - 1].skip_ +
 422                         colsep() +
 423                         colinfo_[col].lines_ * vlinesep();
 424         }
 425
 426
 427         dim.wid   =   colinfo_[ncols() - 1].offset_
 428                        + colinfo_[ncols() - 1].width_
 429                  + vlinesep() * colinfo_[ncols()].lines_
 430                        + border();
 431
 432         dim.asc  = - rowinfo_[0].offset_
 433                        + rowinfo_[0].ascent_
 434                  + hlinesep() * rowinfo_[0].lines_
 435                        + border();
 436
 437         dim.des =   rowinfo_[nrows() - 1].offset_
 438                        + rowinfo_[nrows() - 1].descent_
 439                  + hlinesep() * rowinfo_[nrows()].lines_
 440                        + border();
 441
 442
 443 /*
 444         // Increase ws_[i] for 'R' columns (except the first one)
 445         for (int i = 1; i < nc_; ++i)
 446                 if (align_[i] == 'R')
 447                         ws_[i] += 10 * df_width;
 448         // Increase ws_[i] for 'C' column
 449         if (align_[0] == 'C')
 450                 if (ws_[0] < 7 * workwidth / 8)
 451                         ws_[0] = 7 * workwidth / 8;
 452
 453         // Adjust local tabs
 454         width = colsep();
 455         for (cxrow = row_.begin(); cxrow; ++cxrow) {
 456                 int rg = COLSEP;
 457                 int lf = 0;
 458                 for (int i = 0; i < nc_; ++i) {
 459                         bool isvoid = false;
 460                         if (cxrow->getTab(i) <= 0) {
 461                                 cxrow->setTab(i, df_width);
 462                                 isvoid = true;
 463                         }
 464                         switch (align_[i]) {
 465                         case 'l':
 466                                 lf = 0;
 467                                 break;
 468                         case 'c':
 469                                 lf = (ws_[i] - cxrow->getTab(i))/2;
 470                                 break;
 471                         case 'r':
 472                         case 'R':
 473                                 lf = ws_[i] - cxrow->getTab(i);
 474                                 break;
 475                         case 'C':
 476                                 if (cxrow == row_.begin())
 477                                         lf = 0;
 478                                 else if (cxrow.is_last())
 479                                         lf = ws_[i] - cxrow->getTab(i);
 480                                 else
 481                                         lf = (ws_[i] - cxrow->getTab(i))/2;
 482                                 break;
 483                         }
 484                         int const ww = (isvoid) ? lf : lf + cxrow->getTab(i);
 485                         cxrow->setTab(i, lf + rg);
 486                         rg = ws_[i] - ww + colsep();
 487                         if (cxrow == row_.begin())
 488                                 width += ws_[i] + colsep();
 489                 }
 490                 cxrow->setBaseline(cxrow->getBaseline() - ascent);
 491         }
 492 */
 493         metricsMarkers2(dim);
 494         // Cache the inset dimension.
 495         setDimCache(mi, dim);
 496 }
 497
 498
 499 void InsetMathGrid::draw(PainterInfo & pi, int x, int y) const
 500 {
 501         drawWithMargin(pi, x, y, 0, 0);
 502 }
 503
 504
 505 void InsetMathGrid::drawWithMargin(PainterInfo & pi, int x, int y,
 506         int lmargin, int rmargin) const
 507 {
 508         Dimension const dim = dimension(*pi.base.bv);
 509         BufferView const & bv = *pi.base.bv;
 510
 511         for (idx_type idx = 0; idx < nargs(); ++idx)
 512                 cell(idx).draw(pi, x + lmargin + cellXOffset(bv, idx),
 513                         y + cellYOffset(idx));
 514
 515         for (row_type row = 0; row <= nrows(); ++row)
 516                 for (unsigned int i = 0; i < rowinfo_[row].lines_; ++i) {
 517                         int yy = y + rowinfo_[row].offset_ - rowinfo_[row].ascent_
 518                                 - i * hlinesep() - hlinesep()/2 - rowsep()/2;
 519                         pi.pain.line(x + lmargin + 1, yy,
 520                                      x + dim.width() - rmargin - 1, yy,
 521                                      Color_foreground);
 522                 }
 523
 524         for (col_type col = 0; col <= ncols(); ++col)
 525                 for (unsigned int i = 0; i < colinfo_[col].lines_; ++i) {
 526                         int xx = x + lmargin + colinfo_[col].offset_
 527                                 - i * vlinesep() - vlinesep()/2 - colsep()/2;
 528                         pi.pain.line(xx, y - dim.ascent() + 1,
 529                                      xx, y + dim.descent() - 1,
 530                                      Color_foreground);
 531                 }
 532         drawMarkers2(pi, x, y);
 533 }
 534
 535
 536 void InsetMathGrid::metricsT(TextMetricsInfo const & mi, Dimension & dim) const
 537 {
 538         // let the cells adjust themselves
 539         //InsetMathNest::metrics(mi);
 540         for (idx_type i = 0; i < nargs(); ++i)
 541                 cell(i).metricsT(mi, dim);
 542
 543         // compute absolute sizes of vertical structure
 544         for (row_type row = 0; row < nrows(); ++row) {
 545                 int asc  = 0;
 546                 int desc = 0;
 547                 for (col_type col = 0; col < ncols(); ++col) {
 548                         //MathData const & c = cell(index(row, col));
 549                         // FIXME: BROKEN!
 550                         Dimension dimc;
 551                         asc  = max(asc,  dimc.ascent());
 552                         desc = max(desc, dimc.descent());
 553                 }
 554                 rowinfo_[row].ascent_  = asc;
 555                 rowinfo_[row].descent_ = desc;
 556         }
 557         //rowinfo_[0].ascent_       += hlinesep() * rowinfo_[0].lines_;
 558         rowinfo_[nrows()].ascent_  = 0;
 559         rowinfo_[nrows()].descent_ = 0;
 560
 561         // compute vertical offsets
 562         rowinfo_[0].offset_ = 0;
 563         for (row_type row = 1; row <= nrows(); ++row) {
 564                 rowinfo_[row].offset_  =
 565                         rowinfo_[row - 1].offset_  +
 566                         rowinfo_[row - 1].descent_ +
 567                         //rowinfo_[row - 1].skipPixels() +
 568                         1 + //rowsep() +
 569                         //rowinfo_[row].lines_ * hlinesep() +
 570                         rowinfo_[row].ascent_;
 571         }
 572
 573         // adjust vertical offset
 574         int h = 0;
 575         switch (v_align_) {
 576                 case 't':
 577                         h = 0;
 578                         break;
 579                 case 'b':
 580                         h = rowinfo_[nrows() - 1].offset_;
 581                         break;
 582                 default:
 583                         h = rowinfo_[nrows() - 1].offset_ / 2;
 584         }
 585         for (row_type row = 0; row <= nrows(); ++row)
 586                 rowinfo_[row].offset_ -= h;
 587
 588
 589         // compute absolute sizes of horizontal structure
 590         for (col_type col = 0; col < ncols(); ++col) {
 591                 int wid = 0;
 592                 for (row_type row = 0; row < nrows(); ++row) {
 593                         // FIXME: BROKEN!
 594                         //wid = max(wid, cell(index(row, col)).width());
 595                 }
 596                 colinfo_[col].width_ = wid;
 597         }
 598         colinfo_[ncols()].width_  = 0;
 599
 600         // compute horizontal offsets
 601         colinfo_[0].offset_ = border();
 602         for (col_type col = 1; col <= ncols(); ++col) {
 603                 colinfo_[col].offset_ =
 604                         colinfo_[col - 1].offset_ +
 605                         colinfo_[col - 1].width_ +
 606                         colinfo_[col - 1].skip_ +
 607                         1 ; //colsep() +
 608                         //colinfo_[col].lines_ * vlinesep();
 609         }
 610
 611
 612         dim.wid  =  colinfo_[ncols() - 1].offset_
 613                        + colinfo_[ncols() - 1].width_
 614                  //+ vlinesep() * colinfo_[ncols()].lines_
 615                        + 2;
 616
 617         dim.asc  = -rowinfo_[0].offset_
 618                        + rowinfo_[0].ascent_
 619                  //+ hlinesep() * rowinfo_[0].lines_
 620                        + 1;
 621
 622         dim.des  =  rowinfo_[nrows() - 1].offset_
 623                        + rowinfo_[nrows() - 1].descent_
 624                  //+ hlinesep() * rowinfo_[nrows()].lines_
 625                        + 1;
 626 }
 627
 628
 629 void InsetMathGrid::drawT(TextPainter & pain, int x, int y) const
 630 {
 631 //      for (idx_type idx = 0; idx < nargs(); ++idx)
 632 //              cell(idx).drawT(pain, x + cellXOffset(idx), y + cellYOffset(idx));
 633 }
 634
 635
 636 docstring InsetMathGrid::eolString(row_type row, bool emptyline, bool fragile) const
 637 {
 638         docstring eol;
 639
 640         if (!rowinfo_[row].crskip_.zero())
 641                 eol += '[' + from_utf8(rowinfo_[row].crskip_.asLatexString()) + ']';
 642         else if(!rowinfo_[row].allow_newpage_)
 643                 eol += '*';
 644
 645         // make sure an upcoming '[' does not break anything
 646         if (row + 1 < nrows()) {
 647                 MathData const & c = cell(index(row + 1, 0));
 648                 if (c.size() && c.front()->getChar() == '[')
 649                         //eol += "[0pt]";
 650                         eol += "{}";
 651         }
 652
 653         // only add \\ if necessary
 654         if (eol.empty() && row + 1 == nrows() && (nrows() == 1 || !emptyline))
 655                 return docstring();
 656
 657         return (fragile ? "\\protect\\\\" : "\\\\") + eol;
 658 }
 659
 660
 661 docstring InsetMathGrid::eocString(col_type col, col_type lastcol) const
 662 {
 663         if (col + 1 == lastcol)
 664                 return docstring();
 665         return from_ascii(" & ");
 666 }
 667
 668
 669 void InsetMathGrid::addRow(row_type row)
 670 {
 671         rowinfo_.insert(rowinfo_.begin() + row + 1, RowInfo());
 672         cells_.insert
 673                 (cells_.begin() + (row + 1) * ncols(), ncols(), MathData());
 674         cellinfo_.insert
 675                 (cellinfo_.begin() + (row + 1) * ncols(), ncols(), CellInfo());
 676 }
 677
 678
 679 void InsetMathGrid::appendRow()
 680 {
 681         rowinfo_.push_back(RowInfo());
 682         //cells_.insert(cells_.end(), ncols(), MathData());
 683         for (col_type col = 0; col < ncols(); ++col) {
 684                 cells_.push_back(cells_type::value_type());
 685                 cellinfo_.push_back(CellInfo());
 686         }
 687 }
 688
 689
 690 void InsetMathGrid::delRow(row_type row)
 691 {
 692         if (nrows() == 1)
 693                 return;
 694
 695         cells_type::iterator it = cells_.begin() + row * ncols();
 696         cells_.erase(it, it + ncols());
 697
 698         vector<CellInfo>::iterator jt = cellinfo_.begin() + row * ncols();
 699         cellinfo_.erase(jt, jt + ncols());
 700
 701         rowinfo_.erase(rowinfo_.begin() + row);
 702 }
 703
 704
 705 void InsetMathGrid::copyRow(row_type row)
 706 {
 707         addRow(row);
 708         for (col_type col = 0; col < ncols(); ++col)
 709                 cells_[(row + 1) * ncols() + col] = cells_[row * ncols() + col];
 710 }
 711
 712
 713 void InsetMathGrid::swapRow(row_type row)
 714 {
 715         if (nrows() == 1)
 716                 return;
 717         if (row + 1 == nrows())
 718                 --row;
 719         for (col_type col = 0; col < ncols(); ++col)
 720                 swap(cells_[row * ncols() + col], cells_[(row + 1) * ncols() + col]);
 721 }
 722
 723
 724 void InsetMathGrid::addCol(col_type newcol)
 725 {
 726         const col_type nc = ncols();
 727         const row_type nr = nrows();
 728         cells_type new_cells((nc + 1) * nr);
 729         vector<CellInfo> new_cellinfo((nc + 1) * nr);
 730
 731         for (row_type row = 0; row < nr; ++row)
 732                 for (col_type col = 0; col < nc; ++col) {
 733                         new_cells[row * (nc + 1) + col + (col >= newcol)]
 734                                 = cells_[row * nc + col];
 735                         new_cellinfo[row * (nc + 1) + col + (col >= newcol)]
 736                                 = cellinfo_[row * nc + col];
 737                 }
 738         swap(cells_, new_cells);
 739         swap(cellinfo_, new_cellinfo);
 740
 741         ColInfo inf;
 742         inf.skip_  = defaultColSpace(newcol);
 743         inf.align_ = defaultColAlign(newcol);
 744         colinfo_.insert(colinfo_.begin() + newcol, inf);
 745 }
 746
 747
 748 void InsetMathGrid::delCol(col_type col)
 749 {
 750         if (ncols() == 1)
 751                 return;
 752
 753         cells_type tmpcells;
 754         vector<CellInfo> tmpcellinfo;
 755         for (col_type i = 0; i < nargs(); ++i)
 756                 if (i % ncols() != col) {
 757                         tmpcells.push_back(cells_[i]);
 758                         tmpcellinfo.push_back(cellinfo_[i]);
 759                 }
 760         swap(cells_, tmpcells);
 761         swap(cellinfo_, tmpcellinfo);
 762
 763         colinfo_.erase(colinfo_.begin() + col);
 764 }
 765
 766
 767 void InsetMathGrid::copyCol(col_type col)
 768 {
 769         addCol(col);
 770         for (row_type row = 0; row < nrows(); ++row)
 771                 cells_[row * ncols() + col + 1] = cells_[row * ncols() + col];
 772 }
 773
 774
 775 void InsetMathGrid::swapCol(col_type col)
 776 {
 777         if (ncols() == 1)
 778                 return;
 779         if (col + 1 == ncols())
 780                 --col;
 781         for (row_type row = 0; row < nrows(); ++row)
 782                 swap(cells_[row * ncols() + col], cells_[row * ncols() + col + 1]);
 783 }
 784
 785
 786 int InsetMathGrid::cellXOffset(BufferView const & bv, idx_type idx) const
 787 {
 788         col_type c = col(idx);
 789         int x = colinfo_[c].offset_;
 790         char align = colinfo_[c].align_;
 791         Dimension const & celldim = cell(idx).dimension(bv);
 792         if (align == 'r' || align == 'R')
 793                 x += colinfo_[c].width_ - celldim.wid;
 794         if (align == 'c' || align == 'C')
 795                 x += (colinfo_[c].width_ - celldim.wid) / 2;
 796         return x;
 797 }
 798
 799
 800 int InsetMathGrid::cellYOffset(idx_type idx) const
 801 {
 802         return rowinfo_[row(idx)].offset_;
 803 }
 804
 805
 806 bool InsetMathGrid::idxUpDown(Cursor & cur, bool up) const
 807 {
 808         if (up) {
 809                 if (cur.row() == 0)
 810                         return false;
 811                 cur.idx() -= ncols();
 812         } else {
 813                 if (cur.row() + 1 >= nrows())
 814                         return false;
 815                 cur.idx() += ncols();
 816         }
 817         cur.pos() = cur.cell().x2pos(cur.x_target() - cur.cell().xo(cur.bv()));
 818         return true;
 819 }
 820
 821
 822 bool InsetMathGrid::idxBackward(Cursor & cur) const
 823 {
 824         // leave matrix if at the front edge
 825         if (cur.col() == 0)
 826                 return false;
 827         --cur.idx();
 828         cur.pos() = cur.lastpos();
 829         return true;
 830 }
 831
 832
 833 bool InsetMathGrid::idxForward(Cursor & cur) const
 834 {
 835         // leave matrix if at the back edge
 836         if (cur.col() + 1 == ncols())
 837                 return false;
 838         ++cur.idx();
 839         cur.pos() = 0;
 840         return true;
 841 }
 842
 843
 844 bool InsetMathGrid::idxFirst(Cursor & cur) const
 845 {
 846         switch (v_align_) {
 847                 case 't':
 848                         cur.idx() = 0;
 849                         break;
 850                 case 'b':
 851                         cur.idx() = (nrows() - 1) * ncols();
 852                         break;
 853                 default:
 854                         cur.idx() = ((nrows() - 1) / 2) * ncols();
 855         }
 856         cur.pos() = 0;
 857         return true;
 858 }
 859
 860
 861 bool InsetMathGrid::idxLast(Cursor & cur) const
 862 {
 863         switch (v_align_) {
 864                 case 't':
 865                         cur.idx() = ncols() - 1;
 866                         break;
 867                 case 'b':
 868                         cur.idx() = nargs() - 1;
 869                         break;
 870                 default:
 871                         cur.idx() = ((nrows() - 1) / 2 + 1) * ncols() - 1;
 872         }
 873         cur.pos() = cur.lastpos();
 874         return true;
 875 }
 876
 877
 878 bool InsetMathGrid::idxDelete(idx_type & idx)
 879 {
 880         // nothing to do if we have just one row
 881         if (nrows() == 1)
 882                 return false;
 883
 884         // nothing to do if we are in the middle of the last row of the inset
 885         if (idx + ncols() > nargs())
 886                 return false;
 887
 888         // try to delete entire sequence of ncols() empty cells if possible
 889         for (idx_type i = idx; i < idx + ncols(); ++i)
 890                 if (cell(i).size())
 891                         return false;
 892
 893         // move cells if necessary
 894         for (idx_type i = index(row(idx), 0); i < idx; ++i)
 895                 swap(cell(i), cell(i + ncols()));
 896
 897         delRow(row(idx));
 898
 899         if (idx >= nargs())
 900                 idx = nargs() - 1;
 901
 902         // undo effect of Ctrl-Tab (i.e. pull next cell)
 903         //if (idx + 1 != nargs())
 904         //      cell(idx).swap(cell(idx + 1));
 905
 906         // we handled the event..
 907         return true;
 908 }
 909
 910
 911 // reimplement old behaviour when pressing Delete in the last position
 912 // of a cell
 913 void InsetMathGrid::idxGlue(idx_type idx)
 914 {
 915         col_type c = col(idx);
 916         if (c + 1 == ncols()) {
 917                 if (row(idx) + 1 != nrows()) {
 918                         for (col_type cc = 0; cc < ncols(); ++cc)
 919                                 cell(idx).append(cell(idx + cc + 1));
 920                         delRow(row(idx) + 1);
 921                 }
 922         } else {
 923                 cell(idx).append(cell(idx + 1));
 924                 for (col_type cc = c + 2; cc < ncols(); ++cc)
 925                         cell(idx - c + cc - 1) = cell(idx - c + cc);
 926                 cell(idx - c + ncols() - 1).clear();
 927         }
 928 }
 929
 930
 931 InsetMathGrid::RowInfo const & InsetMathGrid::rowinfo(row_type row) const
 932 {
 933         return rowinfo_[row];
 934 }
 935
 936
 937 InsetMathGrid::RowInfo & InsetMathGrid::rowinfo(row_type row)
 938 {
 939         return rowinfo_[row];
 940 }
 941
 942
 943 bool InsetMathGrid::idxBetween(idx_type idx, idx_type from, idx_type to) const
 944 {
 945         row_type const ri = row(idx);
 946         row_type const r1 = min(row(from), row(to));
 947         row_type const r2 = max(row(from), row(to));
 948         col_type const ci = col(idx);
 949         col_type const c1 = min(col(from), col(to));
 950         col_type const c2 = max(col(from), col(to));
 951         return r1 <= ri && ri <= r2 && c1 <= ci && ci <= c2;
 952 }
 953
 954
 955
 956 void InsetMathGrid::normalize(NormalStream & os) const
 957 {
 958         os << "[grid ";
 959         for (row_type row = 0; row < nrows(); ++row) {
 960                 os << "[row ";
 961                 for (col_type col = 0; col < ncols(); ++col)
 962                         os << "[cell " << cell(index(row, col)) << ']';
 963                 os << ']';
 964         }
 965         os << ']';
 966 }
 967
 968
 969 void InsetMathGrid::mathmlize(MathStream & os) const
 970 {
 971         os << MTag("mtable");
 972         for (row_type row = 0; row < nrows(); ++row) {
 973                 os << MTag("mtr");
 974                 for (col_type col = 0; col < ncols(); ++col)
 975                         os << cell(index(row, col));
 976                 os << ETag("mtr");
 977         }
 978         os << ETag("mtable");
 979 }
 980
 981
 982 void InsetMathGrid::write(WriteStream & os) const
 983 {
 984         docstring eol;
 985         for (row_type row = 0; row < nrows(); ++row) {
 986                 os << verboseHLine(rowinfo_[row].lines_);
 987                 // don't write & and empty cells at end of line
 988                 col_type lastcol = 0;
 989                 bool emptyline = true;
 990                 for (col_type col = 0; col < ncols(); ++col)
 991                         if (!cell(index(row, col)).empty()) {
 992                                 lastcol = col + 1;
 993                                 emptyline = false;
 994                         }
 995                 for (col_type col = 0; col < lastcol; ++col)
 996                         os << cell(index(row, col)) << eocString(col, lastcol);
 997                 eol = eolString(row, emptyline, os.fragile());
 998                 os << eol;
 999                 // append newline only if line wasn't completely empty
1000                 // and this was not the last line in the grid
1001                 if (!emptyline && row + 1 < nrows())
1002                         os << "\n";
1003         }
1004         docstring const s = verboseHLine(rowinfo_[nrows()].lines_);
1005         if (!s.empty()) {
1006                 if (eol.empty()) {
1007                         if (os.fragile())
1008                                 os << "\\protect";
1009                         os << "\\\\";
1010                 }
1011                 os << s;
1012         }
1013 }
1014
1015
1016 int InsetMathGrid::colsep() const
1017 {
1018         return 6;
1019 }
1020
1021
1022 int InsetMathGrid::rowsep() const
1023 {
1024         return 6;
1025 }
1026
1027
1028 int InsetMathGrid::hlinesep() const
1029 {
1030         return 3;
1031 }
1032
1033
1034 int InsetMathGrid::vlinesep() const
1035 {
1036         return 3;
1037 }
1038
1039
1040 int InsetMathGrid::border() const
1041 {
1042         return 1;
1043 }
1044
1045
1046 void InsetMathGrid::splitCell(Cursor & cur)
1047 {
1048         if (cur.idx() == cur.lastidx())
1049                 return;
1050         MathData ar = cur.cell();
1051         ar.erase(0, cur.pos());
1052         cur.cell().erase(cur.pos(), cur.lastpos());
1053         ++cur.idx();
1054         cur.pos() = 0;
1055         cur.cell().insert(0, ar);
1056 }
1057
1058
1059 void InsetMathGrid::doDispatch(Cursor & cur, FuncRequest & cmd)
1060 {
1061         //lyxerr << "*** InsetMathGrid: request: " << cmd << endl;
1062         switch (cmd.action) {
1063
1064         // insert file functions
1065         case LFUN_LINE_DELETE:
1066                 // FIXME: We use recordUndoInset when a change reflects more
1067                 // than one cell, because recordUndo does not work for
1068                 // multiple cells. Unfortunately this puts the cursor in front
1069                 // of the inset after undo. This is (especilally for large
1070                 // grids) annoying.
1071                 cur.recordUndoInset();
1072                 //autocorrect_ = false;
1073                 //macroModeClose();
1074                 //if (selection_) {
1075                 //      selDel();
1076                 //      break;
1077                 //}
1078                 if (nrows() > 1)
1079                         delRow(cur.row());
1080                 if (cur.idx() > cur.lastidx())
1081                         cur.idx() = cur.lastidx();
1082                 if (cur.pos() > cur.lastpos())
1083                         cur.pos() = cur.lastpos();
1084                 break;
1085
1086         case LFUN_CELL_SPLIT:
1087                 cur.recordUndo();
1088                 splitCell(cur);
1089                 break;
1090
1091         case LFUN_CELL_BACKWARD:
1092                 // See below.
1093                 cur.selection() = false;
1094                 if (!idxPrev(cur)) {
1095                         cmd = FuncRequest(LFUN_FINISHED_BACKWARD);
1096                         cur.undispatched();
1097                 }
1098                 break;
1099
1100         case LFUN_CELL_FORWARD:
1101                 // Can't handle selection by additional 'shift' as this is
1102                 // hard bound to LFUN_CELL_BACKWARD
1103                 cur.selection() = false;
1104                 if (!idxNext(cur)) {
1105                         cmd = FuncRequest(LFUN_FINISHED_FORWARD);
1106                         cur.undispatched();
1107                 }
1108                 break;
1109
1110         case LFUN_NEW_LINE: {
1111                 cur.recordUndoInset();
1112                 row_type const r = cur.row();
1113                 addRow(r);
1114
1115                 // split line
1116                 for (col_type c = col(cur.idx()) + 1; c < ncols(); ++c)
1117                         swap(cell(index(r, c)), cell(index(r + 1, c)));
1118
1119                 // split cell
1120                 splitCell(cur);
1121                 swap(cell(cur.idx()), cell(cur.idx() + ncols() - 1));
1122                 if (cur.idx() > 0)
1123                         --cur.idx();
1124                 cur.pos() = cur.lastpos();
1125
1126                 //mathcursor->normalize();
1127                 //cmd = FuncRequest(LFUN_FINISHED_BACKWARD);
1128                 break;
1129         }
1130
1131         case LFUN_TABULAR_FEATURE: {
1132                 cur.recordUndoInset();
1133                 //lyxerr << "handling tabular-feature " << to_utf8(cmd.argument()) << endl;
1134                 istringstream is(to_utf8(cmd.argument()));
1135                 string s;
1136                 is >> s;
1137                 if (s == "valign-top")
1138                         valign('t');
1139                 else if (s == "valign-middle")
1140                         valign('c');
1141                 else if (s == "valign-bottom")
1142                         valign('b');
1143                 else if (s == "align-left")
1144                         halign('l', cur.col());
1145                 else if (s == "align-right")
1146                         halign('r', cur.col());
1147                 else if (s == "align-center")
1148                         halign('c', cur.col());
1149                 else if (s == "append-row")
1150                         for (int i = 0, n = extractInt(is); i < n; ++i)
1151                                 addRow(cur.row());
1152                 else if (s == "delete-row") {
1153                         cur.clearSelection(); // bug 4323
1154                         for (int i = 0, n = extractInt(is); i < n; ++i) {
1155                                 delRow(cur.row());
1156                                 if (cur.idx() >= nargs())
1157                                         cur.idx() -= ncols();
1158                         }
1159                         cur.pos() = 0; // trick, see below
1160                 }
1161                 else if (s == "copy-row") {
1162                         // Here (as later) we save the cursor col/row
1163                         // in order to restore it after operation.
1164                         row_type const r = cur.row();
1165                         col_type const c = cur.col();
1166                         for (int i = 0, n = extractInt(is); i < n; ++i)
1167                                 copyRow(cur.row());
1168                         cur.idx() = index(r, c);
1169                 }
1170                 else if (s == "swap-row") {
1171                         swapRow(cur.row());
1172                         // Trick to suppress same-idx-means-different-cell
1173                         // assertion crash:
1174                         cur.pos() = 0;
1175                 }
1176                 else if (s == "add-hline-above")
1177                         rowinfo_[cur.row()].lines_++;
1178                 else if (s == "add-hline-below")
1179                         rowinfo_[cur.row()+1].lines_++;
1180                 else if (s == "delete-hline-above")
1181                         rowinfo_[cur.row()].lines_--;
1182                 else if (s == "delete-hline-below")
1183                         rowinfo_[cur.row()+1].lines_--;
1184                 else if (s == "append-column") {
1185                         row_type const r = cur.row();
1186                         col_type const c = cur.col();
1187                         for (int i = 0, n = extractInt(is); i < n; ++i)
1188                                 addCol(cur.col() + 1);
1189                         cur.idx() = index(r, c);
1190                 }
1191                 else if (s == "delete-column") {
1192                         cur.clearSelection(); // bug 4323
1193                         row_type const r = cur.row();
1194                         col_type const c = cur.col();
1195                         for (int i = 0, n = extractInt(is); i < n; ++i)
1196                                 delCol(col(cur.idx()));
1197                         cur.idx() = index(r, min(c, cur.ncols() - 1));
1198                         cur.pos() = 0; // trick, see above
1199                 }
1200                 else if (s == "copy-column") {
1201                         row_type const r = cur.row();
1202                         col_type const c = cur.col();
1203                         copyCol(cur.col());
1204                         cur.idx() = index(r, c);
1205                 }
1206                 else if (s == "swap-column") {
1207                         swapCol(cur.col());
1208                         cur.pos() = 0; // trick, see above
1209                 }
1210                 else if (s == "add-vline-left") {
1211                         colinfo_[cur.col()].lines_++;
1212                         if (!colinfo_[cur.col()].special_.empty())
1213                                 colinfo_[cur.col()].special_ += '|';
1214                 }
1215                 else if (s == "add-vline-right") {
1216                         colinfo_[cur.col()+1].lines_++;
1217                         if (!colinfo_[cur.col()+1].special_.empty())
1218                                 colinfo_[cur.col()+1].special_.insert(0, 1, '|');
1219                 }
1220                 else if (s == "delete-vline-left") {
1221                         colinfo_[cur.col()].lines_--;
1222                         docstring & special = colinfo_[cur.col()].special_;
1223                         if (!special.empty()) {
1224                                 docstring::size_type i = special.rfind('|');
1225                                 BOOST_ASSERT(i != docstring::npos);
1226                                 special.erase(i, 1);
1227                         }
1228                 }
1229                 else if (s == "delete-vline-right") {
1230                         colinfo_[cur.col()+1].lines_--;
1231                         docstring & special = colinfo_[cur.col()+1].special_;
1232                         if (!special.empty()) {
1233                                 docstring::size_type i = special.find('|');
1234                                 BOOST_ASSERT(i != docstring::npos);
1235                                 special.erase(i, 1);
1236                         }
1237                 }
1238                 else {
1239                         cur.undispatched();
1240                         break;
1241                 }
1242                 // perhaps this should be FINISHED_BACKWARD -- just for clarity?
1243                 lyxerr << "returning FINISHED_LEFT" << endl;
1244                 break;
1245         }
1246
1247         case LFUN_PASTE: {
1248                 cur.message(_("Paste"));
1249                 cap::replaceSelection(cur);
1250                 docstring topaste;
1251                 if (cmd.argument().empty() && !theClipboard().isInternal())
1252                         topaste = theClipboard().getAsText();
1253                 else {
1254                         idocstringstream is(cmd.argument());
1255                         int n = 0;
1256                         is >> n;
1257                         topaste = cap::getSelection(cur.buffer(), n);
1258                 }
1259                 InsetMathGrid grid(1, 1);
1260                 if (!topaste.empty())
1261                         mathed_parse_normal(grid, topaste);
1262
1263                 if (grid.nargs() == 1) {
1264                         // single cell/part of cell
1265                         cur.recordUndo();
1266                         cur.cell().insert(cur.pos(), grid.cell(0));
1267                         cur.pos() += grid.cell(0).size();
1268                 } else {
1269                         // multiple cells
1270                         cur.recordUndoInset();
1271                         col_type const numcols =
1272                                 min(grid.ncols(), ncols() - col(cur.idx()));
1273                         row_type const numrows =
1274                                 min(grid.nrows(), nrows() - cur.row());
1275                         for (row_type r = 0; r < numrows; ++r) {
1276                                 for (col_type c = 0; c < numcols; ++c) {
1277                                         idx_type i = index(r + cur.row(), c + col(cur.idx()));
1278                                         cell(i).insert(0, grid.cell(grid.index(r, c)));
1279                                 }
1280                                 // append the left over horizontal cells to the last column
1281                                 idx_type i = index(r + cur.row(), ncols() - 1);
1282                                 for (InsetMath::col_type c = numcols; c < grid.ncols(); ++c)
1283                                         cell(i).append(grid.cell(grid.index(r, c)));
1284                         }
1285                         // append the left over vertical cells to the last _cell_
1286                         idx_type i = nargs() - 1;
1287                         for (row_type r = numrows; r < grid.nrows(); ++r)
1288                                 for (col_type c = 0; c < grid.ncols(); ++c)
1289                                         cell(i).append(grid.cell(grid.index(r, c)));
1290                 }
1291                 cur.clearSelection(); // bug 393
1292                 cur.finishUndo();
1293                 break;
1294         }
1295
1296         case LFUN_LINE_BEGIN_SELECT:
1297         case LFUN_LINE_BEGIN:
1298         case LFUN_WORD_BACKWARD_SELECT:
1299         case LFUN_WORD_BACKWARD:
1300         case LFUN_WORD_LEFT_SELECT:
1301         case LFUN_WORD_LEFT:
1302                 cur.selHandle(cmd.action == LFUN_WORD_BACKWARD_SELECT ||
1303                                 cmd.action == LFUN_WORD_LEFT_SELECT ||
1304                                 cmd.action == LFUN_LINE_BEGIN_SELECT);
1305                 cur.macroModeClose();
1306                 if (cur.pos() != 0) {
1307                         cur.pos() = 0;
1308                 } else if (cur.idx() % cur.ncols() != 0) {
1309                         cur.idx() -= cur.idx() % cur.ncols();
1310                         cur.pos() = 0;
1311                 } else if (cur.idx() != 0) {
1312                         cur.idx() = 0;
1313                         cur.pos() = 0;
1314                 } else {
1315                         cmd = FuncRequest(LFUN_FINISHED_BACKWARD);
1316                         cur.undispatched();
1317                 }
1318                 break;
1319
1320         case LFUN_WORD_FORWARD_SELECT:
1321         case LFUN_WORD_FORWARD:
1322         case LFUN_WORD_RIGHT_SELECT:
1323         case LFUN_WORD_RIGHT:
1324         case LFUN_LINE_END_SELECT:
1325         case LFUN_LINE_END:
1326                 cur.selHandle(cmd.action == LFUN_WORD_FORWARD_SELECT ||
1327                                 cmd.action == LFUN_WORD_RIGHT_SELECT ||
1328                                 cmd.action == LFUN_LINE_END_SELECT);
1329                 cur.macroModeClose();
1330                 cur.clearTargetX();
1331                 if (cur.pos() != cur.lastpos()) {
1332                         cur.pos() = cur.lastpos();
1333                 } else if ((cur.idx() + 1) % cur.ncols() != 0) {
1334                         cur.idx() += cur.ncols() - 1 - cur.idx() % cur.ncols();
1335                         cur.pos() = cur.lastpos();
1336                 } else if (cur.idx() != cur.lastidx()) {
1337                         cur.idx() = cur.lastidx();
1338                         cur.pos() = cur.lastpos();
1339                 } else {
1340                         cmd = FuncRequest(LFUN_FINISHED_FORWARD);
1341                         cur.undispatched();
1342                 }
1343                 break;
1344
1345         default:
1346                 InsetMathNest::doDispatch(cur, cmd);
1347         }
1348 }
1349
1350
1351 bool InsetMathGrid::getStatus(Cursor & cur, FuncRequest const & cmd,
1352                 FuncStatus & status) const
1353 {
1354         switch (cmd.action) {
1355         case LFUN_TABULAR_FEATURE: {
1356                 string const s = to_utf8(cmd.argument());
1357                 if (nrows() <= 1 && (s == "delete-row" || s == "swap-row")) {
1358                         status.enabled(false);
1359                         status.message(from_utf8(N_("Only one row")));
1360                         return true;
1361                 }
1362                 if (ncols() <= 1 &&
1363                     (s == "delete-column" || s == "swap-column")) {
1364                         status.enabled(false);
1365                         status.message(from_utf8(N_("Only one column")));
1366                         return true;
1367                 }
1368                 if ((rowinfo_[cur.row()].lines_ == 0 &&
1369                      s == "delete-hline-above") ||
1370                     (rowinfo_[cur.row() + 1].lines_ == 0 &&
1371                      s == "delete-hline-below")) {
1372                         status.enabled(false);
1373                         status.message(from_utf8(N_("No hline to delete")));
1374                         return true;
1375                 }
1376
1377                 if ((colinfo_[cur.col()].lines_ == 0 &&
1378                      s == "delete-vline-left") ||
1379                     (colinfo_[cur.col() + 1].lines_ == 0 &&
1380                      s == "delete-vline-right")) {
1381                         status.enabled(false);
1382                         status.message(from_utf8(N_("No vline to delete")));
1383                         return true;
1384                 }
1385                 if (s == "valign-top" || s == "valign-middle" ||
1386                     s == "valign-bottom" || s == "align-left" ||
1387                     s == "align-right" || s == "align-center" ||
1388                     s == "append-row" || s == "delete-row" ||
1389                     s == "copy-row" || s == "swap-row" ||
1390                     s == "add-hline-above" || s == "add-hline-below" ||
1391                     s == "delete-hline-above" || s == "delete-hline-below" ||
1392                     s == "append-column" || s == "delete-column" ||
1393                     s == "copy-column" || s == "swap-column" ||
1394                     s == "add-vline-left" || s == "add-vline-right" ||
1395                     s == "delete-vline-left" || s == "delete-vline-right")
1396                         status.enabled(true);
1397                 else {
1398                         status.enabled(false);
1399                         status.message(bformat(
1400                                 from_utf8(N_("Unknown tabular feature '%1$s'")), lyx::from_ascii(s)));
1401                 }
1402
1403                 status.setOnOff((s == "align-left" && halign(cur.col()) == 'l')
1404                            || (s == "align-right"   && halign(cur.col()) == 'r')
1405                            || (s == "align-center"  && halign(cur.col()) == 'c')
1406                            || (s == "valign-top"    && valign() == 't')
1407                            || (s == "valign-bottom" && valign() == 'b')
1408                            || (s == "valign-middle" && valign() == 'm'));
1409
1410 #if 0
1411                 // FIXME: What did this code do?
1412                 // Please check whether it is still needed!
1413                 // should be more precise
1414                 if (v_align_ == '\0') {
1415                         status.enable(true);
1416                         break;
1417                 }
1418                 if (cmd.argument().empty()) {
1419                         status.enable(false);
1420                         break;
1421                 }
1422                 if (!support::contains("tcb", cmd.argument()[0])) {
1423                         status.enable(false);
1424                         break;
1425                 }
1426                 status.setOnOff(cmd.argument()[0] == v_align_);
1427                 status.enabled(true);
1428 #endif
1429                 return true;
1430         }
1431
1432         case LFUN_CELL_SPLIT:
1433                 status.enabled(true);
1434                 return true;
1435
1436         case LFUN_CELL_BACKWARD:
1437         case LFUN_CELL_FORWARD:
1438                 status.enabled(true);
1439                 return true;
1440
1441         default:
1442                 return InsetMathNest::getStatus(cur, cmd, status);
1443         }
1444 }
1445
1446
1447 } // namespace lyx