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