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 "InsetMathUnknown.h"
  17 #include "MathData.h"
  18 #include "MathParser.h"
  19 #include "MathStream.h"
  20 #include "MetricsInfo.h"
  21
  22 #include "Buffer.h"
  23 #include "BufferView.h"
  24 #include "CutAndPaste.h"
  25 #include "FuncStatus.h"
  26 #include "Cursor.h"
  27 #include "FuncRequest.h"
  28
  29 #include "frontends/Clipboard.h"
  30 #include "frontends/FontMetrics.h"
  31 #include "frontends/Painter.h"
  32
  33 #include "support/debug.h"
  34 #include "support/docstream.h"
  35 #include "support/gettext.h"
  36 #include "support/lstrings.h"
  37
  38 #include "support/lassert.h"
  39
  40 #include <sstream>
  41
  42 using namespace std;
  43 using namespace lyx::support;
  44
  45
  46
  47 namespace lyx {
  48
  49 static docstring verboseHLine(int n)
  50 {
  51         docstring res;
  52         for (int i = 0; i < n; ++i)
  53                 res += "\\hline";
  54         if (n)
  55                 res += ' ';
  56         return res;
  57 }
  58
  59
  60 static int extractInt(istream & is)
  61 {
  62         int num = 1;
  63         is >> num;
  64         return (num == 0) ? 1 : num;
  65 }
  66
  67
  68 static void resetGrid(InsetMathGrid & grid)
  69 {
  70         while (grid.ncols() > 1)
  71                 grid.delCol(grid.ncols() - 1);
  72         while (grid.nrows() > 1)
  73                 grid.delRow(grid.nrows() - 1);
  74         grid.cell(0).erase(0, grid.cell(0).size());
  75         grid.setDefaults();
  76 }
  77
  78
  79
  80 //////////////////////////////////////////////////////////////
  81
  82
  83 InsetMathGrid::CellInfo::CellInfo()
  84         : dummy_(false)
  85 {}
  86
  87
  88
  89 //////////////////////////////////////////////////////////////
  90
  91
  92 InsetMathGrid::RowInfo::RowInfo()
  93         : lines_(0), skip_(0), allow_newpage_(true)
  94 {}
  95
  96
  97
  98 int InsetMathGrid::RowInfo::skipPixels(MetricsInfo const & mi) const
  99 {
 100         frontend::FontMetrics const & fm = theFontMetrics(mi.base.font);
 101         return crskip_.inPixels(mi.base.textwidth,
 102                                 fm.width(char_type('M')));
 103 }
 104
 105
 106
 107 //////////////////////////////////////////////////////////////
 108
 109
 110 InsetMathGrid::ColInfo::ColInfo()
 111         : align_('c'), lines_(0)
 112 {}
 113
 114
 115 //////////////////////////////////////////////////////////////
 116
 117
 118 InsetMathGrid::InsetMathGrid(Buffer * buf)
 119         : InsetMathNest(buf, 1),
 120           rowinfo_(1 + 1),
 121                 colinfo_(1 + 1),
 122                 cellinfo_(1),
 123                 v_align_('c')
 124 {
 125         setDefaults();
 126 }
 127
 128
 129 InsetMathGrid::InsetMathGrid(Buffer * buf, col_type m, row_type n)
 130         : InsetMathNest(buf, m * n),
 131           rowinfo_(n + 1),
 132                 colinfo_(m + 1),
 133                 cellinfo_(m * n),
 134                 v_align_('c')
 135 {
 136         setDefaults();
 137 }
 138
 139
 140 InsetMathGrid::InsetMathGrid(Buffer * buf, col_type m, row_type n, char v,
 141         docstring const & h)
 142         : InsetMathNest(buf, m * n),
 143           rowinfo_(n + 1),
 144           colinfo_(m + 1),
 145                 cellinfo_(m * n),
 146                 v_align_(v)
 147 {
 148         setDefaults();
 149         setVerticalAlignment(v);
 150         setHorizontalAlignments(h);
 151 }
 152
 153
 154 Inset * InsetMathGrid::clone() const
 155 {
 156         return new InsetMathGrid(*this);
 157 }
 158
 159
 160 InsetMath::idx_type InsetMathGrid::index(row_type row, col_type col) const
 161 {
 162         return col + ncols() * row;
 163 }
 164
 165
 166 void InsetMathGrid::setDefaults()
 167 {
 168         if (ncols() <= 0)
 169                 lyxerr << "positive number of columns expected" << endl;
 170         //if (nrows() <= 0)
 171         //      lyxerr << "positive number of rows expected" << endl;
 172         for (col_type col = 0; col < ncols(); ++col) {
 173                 colinfo_[col].align_ = defaultColAlign(col);
 174                 colinfo_[col].skip_  = defaultColSpace(col);
 175                 colinfo_[col].special_.clear();
 176         }
 177 }
 178
 179
 180 bool InsetMathGrid::interpretString(Cursor & cur, docstring const & str)
 181 {
 182         if (str == "\\hline") {
 183                 FuncRequest fr = FuncRequest(LFUN_INSET_MODIFY, "tabular add-hline-above");
 184                 FuncStatus status;
 185                 if (getStatus(cur, fr, status)) {
 186                         if (status.enabled()) {
 187                                 cur.recordUndoInset();
 188                                 rowinfo_[cur.row()].lines_++;
 189                                 return true;
 190                         }
 191                 }
 192         }
 193         return InsetMathNest::interpretString(cur, str);
 194 }
 195
 196
 197 void InsetMathGrid::setHorizontalAlignments(docstring const & hh)
 198 {
 199         col_type col = 0;
 200         for (docstring::const_iterator it = hh.begin(); it != hh.end(); ++it) {
 201                 char_type c = *it;
 202                 if (c == '|') {
 203                         colinfo_[col].lines_++;
 204                 } else if ((c == 'p' || c == 'm' || c == 'b'||
 205                             c == '!' || c == '@' || c == '>' || c == '<') &&
 206                            it + 1 != hh.end() && *(it + 1) == '{') {
 207                         // @{decl.} and p{width} are standard LaTeX, the
 208                         // others are extensions by array.sty
 209                         bool const newcolumn = c == 'p' || c == 'm' || c == 'b';
 210                         if (newcolumn) {
 211                                 // this declares a new column
 212                                 if (col >= ncols())
 213                                         // Only intercolumn stuff is allowed
 214                                         // in the last dummy column
 215                                         break;
 216                                 colinfo_[col].align_ = 'l';
 217                         } else {
 218                                 // this is intercolumn stuff
 219                                 if (colinfo_[col].special_.empty())
 220                                         // Overtake possible lines
 221                                         colinfo_[col].special_ = docstring(colinfo_[col].lines_, '|');
 222                         }
 223                         int brace_open = 0;
 224                         int brace_close = 0;
 225                         while (it != hh.end()) {
 226                                 c = *it;
 227                                 colinfo_[col].special_ += c;
 228                                 if (c == '{')
 229                                         ++brace_open;
 230                                 else if (c == '}')
 231                                         ++brace_close;
 232                                 ++it;
 233                                 if (brace_open > 0 && brace_open == brace_close)
 234                                         break;
 235                         }
 236                         --it;
 237                         if (newcolumn) {
 238                                 colinfo_[col].lines_ = count(
 239                                         colinfo_[col].special_.begin(),
 240                                         colinfo_[col].special_.end(), '|');
 241                                 LYXERR(Debug::MATHED, "special column separator: `"
 242                                         << to_utf8(colinfo_[col].special_) << '\'');
 243                                 ++col;
 244                                 colinfo_[col].lines_ = 0;
 245                                 colinfo_[col].special_.clear();
 246                         }
 247                 } else if (col >= ncols()) {
 248                         // Only intercolumn stuff is allowed in the last
 249                         // dummy column
 250                         break;
 251                 } else if (c == 'c' || c == 'l' || c == 'r') {
 252                         colinfo_[col].align_ = static_cast<char>(c);
 253                         if (!colinfo_[col].special_.empty()) {
 254                                 colinfo_[col].special_ += c;
 255                                 colinfo_[col].lines_ = count(
 256                                                 colinfo_[col].special_.begin(),
 257                                                 colinfo_[col].special_.end(), '|');
 258                                 LYXERR(Debug::MATHED, "special column separator: `"
 259                                         << to_utf8(colinfo_[col].special_) << '\'');
 260                         }
 261                         ++col;
 262                         colinfo_[col].lines_ = 0;
 263                         colinfo_[col].special_.clear();
 264                 } else {
 265                         lyxerr << "unknown column separator: '" << c << "'" << endl;
 266                 }
 267         }
 268
 269 /*
 270         col_type n = hh.size();
 271         if (n > ncols())
 272                 n = ncols();
 273         for (col_type col = 0; col < n; ++col)
 274                 colinfo_[col].align_ = hh[col];
 275 */
 276 }
 277
 278
 279 InsetMathGrid::col_type InsetMathGrid::guessColumns(docstring const & hh)
 280 {
 281         col_type col = 0;
 282         for (docstring::const_iterator it = hh.begin(); it != hh.end(); ++it)
 283                 if (*it == 'c' || *it == 'l' || *it == 'r'||
 284                     *it == 'p' || *it == 'm' || *it == 'b')
 285                         ++col;
 286         // let's have at least one column, even if we did not recognize its
 287         // alignment
 288         if (col == 0)
 289                 col = 1;
 290         return col;
 291 }
 292
 293
 294 void InsetMathGrid::setHorizontalAlignment(char h, col_type col)
 295 {
 296         colinfo_[col].align_ = h;
 297         if (!colinfo_[col].special_.empty()) {
 298                 char_type & c = colinfo_[col].special_[colinfo_[col].special_.size() - 1];
 299                 if (c == 'l' || c == 'c' || c == 'r')
 300                         c = h;
 301         }
 302         // FIXME: Change alignment of p, m and b columns, too
 303 }
 304
 305
 306 char InsetMathGrid::horizontalAlignment(col_type col) const
 307 {
 308         return colinfo_[col].align_;
 309 }
 310
 311
 312 docstring InsetMathGrid::horizontalAlignments() const
 313 {
 314         docstring res;
 315         for (col_type col = 0; col < ncols(); ++col) {
 316                 if (colinfo_[col].special_.empty()) {
 317                         res += docstring(colinfo_[col].lines_, '|');
 318                         res += colinfo_[col].align_;
 319                 } else
 320                         res += colinfo_[col].special_;
 321         }
 322         if (colinfo_[ncols()].special_.empty())
 323                 return res + docstring(colinfo_[ncols()].lines_, '|');
 324         return res + colinfo_[ncols()].special_;
 325 }
 326
 327
 328 void InsetMathGrid::setVerticalAlignment(char c)
 329 {
 330         v_align_ = c;
 331 }
 332
 333
 334 char InsetMathGrid::verticalAlignment() const
 335 {
 336         return v_align_;
 337 }
 338
 339
 340 InsetMathGrid::col_type InsetMathGrid::ncols() const
 341 {
 342         return colinfo_.size() - 1;
 343 }
 344
 345
 346 InsetMathGrid::row_type InsetMathGrid::nrows() const
 347 {
 348         return rowinfo_.size() - 1;
 349 }
 350
 351
 352 InsetMathGrid::col_type InsetMathGrid::col(idx_type idx) const
 353 {
 354         return idx % ncols();
 355 }
 356
 357
 358 InsetMathGrid::row_type InsetMathGrid::row(idx_type idx) const
 359 {
 360         return idx / ncols();
 361 }
 362
 363
 364 void InsetMathGrid::vcrskip(Length const & crskip, row_type row)
 365 {
 366         rowinfo_[row].crskip_ = crskip;
 367 }
 368
 369
 370 Length InsetMathGrid::vcrskip(row_type row) const
 371 {
 372         return rowinfo_[row].crskip_;
 373 }
 374
 375
 376 void InsetMathGrid::metrics(MetricsInfo & mi, Dimension & dim) const
 377 {
 378         // let the cells adjust themselves
 379         InsetMathNest::metrics(mi);
 380
 381         BufferView & bv = *mi.base.bv;
 382
 383         // compute absolute sizes of vertical structure
 384         for (row_type row = 0; row < nrows(); ++row) {
 385                 int asc  = 0;
 386                 int desc = 0;
 387                 for (col_type col = 0; col < ncols(); ++col) {
 388                         Dimension const & dimc = cell(index(row, col)).dimension(bv);
 389                         asc  = max(asc,  dimc.asc);
 390                         desc = max(desc, dimc.des);
 391                 }
 392                 rowinfo_[row].ascent_  = asc;
 393                 rowinfo_[row].descent_ = desc;
 394         }
 395         rowinfo_[0].ascent_       += hlinesep() * rowinfo_[0].lines_;
 396         rowinfo_[nrows()].ascent_  = 0;
 397         rowinfo_[nrows()].descent_ = 0;
 398
 399         // compute vertical offsets
 400         rowinfo_[0].offset_ = 0;
 401         for (row_type row = 1; row <= nrows(); ++row) {
 402                 rowinfo_[row].offset_ =
 403                         rowinfo_[row - 1].offset_ +
 404                         rowinfo_[row - 1].descent_ +
 405                         rowinfo_[row - 1].skipPixels(mi) +
 406                         rowsep() +
 407                         rowinfo_[row].lines_ * hlinesep() +
 408                         rowinfo_[row].ascent_;
 409         }
 410
 411         // adjust vertical offset
 412         int h = 0;
 413         switch (v_align_) {
 414                 case 't':
 415                         h = 0;
 416                         break;
 417                 case 'b':
 418                         h = rowinfo_[nrows() - 1].offset_;
 419                         break;
 420                 default:
 421                         h = rowinfo_[nrows() - 1].offset_ / 2;
 422         }
 423         for (row_type row = 0; row <= nrows(); ++row)
 424                 rowinfo_[row].offset_ -= h;
 425
 426
 427         // compute absolute sizes of horizontal structure
 428         for (col_type col = 0; col < ncols(); ++col) {
 429                 int wid = 0;
 430                 for (row_type row = 0; row < nrows(); ++row)
 431                         wid = max(wid, cell(index(row, col)).dimension(bv).wid);
 432                 colinfo_[col].width_ = wid;
 433         }
 434         colinfo_[ncols()].width_  = 0;
 435
 436         // compute horizontal offsets
 437         colinfo_[0].offset_ = border();
 438         for (col_type col = 1; col <= ncols(); ++col) {
 439                 colinfo_[col].offset_ =
 440                         colinfo_[col - 1].offset_ +
 441                         colinfo_[col - 1].width_ +
 442                         colinfo_[col - 1].skip_ +
 443                         colsep() +
 444                         colinfo_[col].lines_ * vlinesep();
 445         }
 446
 447
 448         dim.wid = colinfo_[ncols() - 1].offset_
 449                 + colinfo_[ncols() - 1].width_
 450                 + vlinesep() * colinfo_[ncols()].lines_
 451                 + border();
 452
 453         dim.asc = - rowinfo_[0].offset_
 454                 + rowinfo_[0].ascent_
 455                 + hlinesep() * rowinfo_[0].lines_
 456                 + border();
 457
 458         dim.des = rowinfo_[nrows() - 1].offset_
 459                 + rowinfo_[nrows() - 1].descent_
 460                 + hlinesep() * rowinfo_[nrows()].lines_
 461                 + border();
 462
 463
 464 /*
 465         // Increase ws_[i] for 'R' columns (except the first one)
 466         for (int i = 1; i < nc_; ++i)
 467                 if (align_[i] == 'R')
 468                         ws_[i] += 10 * df_width;
 469         // Increase ws_[i] for 'C' column
 470         if (align_[0] == 'C')
 471                 if (ws_[0] < 7 * workwidth / 8)
 472                         ws_[0] = 7 * workwidth / 8;
 473
 474         // Adjust local tabs
 475         width = colsep();
 476         for (cxrow = row_.begin(); cxrow; ++cxrow) {
 477                 int rg = COLSEP;
 478                 int lf = 0;
 479                 for (int i = 0; i < nc_; ++i) {
 480                         bool isvoid = false;
 481                         if (cxrow->getTab(i) <= 0) {
 482                                 cxrow->setTab(i, df_width);
 483                                 isvoid = true;
 484                         }
 485                         switch (align_[i]) {
 486                         case 'l':
 487                                 lf = 0;
 488                                 break;
 489                         case 'c':
 490                                 lf = (ws_[i] - cxrow->getTab(i))/2;
 491                                 break;
 492                         case 'r':
 493                         case 'R':
 494                                 lf = ws_[i] - cxrow->getTab(i);
 495                                 break;
 496                         case 'C':
 497                                 if (cxrow == row_.begin())
 498                                         lf = 0;
 499                                 else if (cxrow.is_last())
 500                                         lf = ws_[i] - cxrow->getTab(i);
 501                                 else
 502                                         lf = (ws_[i] - cxrow->getTab(i))/2;
 503                                 break;
 504                         }
 505                         int const ww = (isvoid) ? lf : lf + cxrow->getTab(i);
 506                         cxrow->setTab(i, lf + rg);
 507                         rg = ws_[i] - ww + colsep();
 508                         if (cxrow == row_.begin())
 509                                 width += ws_[i] + colsep();
 510                 }
 511                 cxrow->setBaseline(cxrow->getBaseline() - ascent);
 512         }
 513 */
 514         metricsMarkers2(dim);
 515         // Cache the inset dimension.
 516         setDimCache(mi, dim);
 517 }
 518
 519
 520 void InsetMathGrid::draw(PainterInfo & pi, int x, int y) const
 521 {
 522         drawWithMargin(pi, x, y, 1, 1);
 523 }
 524
 525
 526 void InsetMathGrid::drawWithMargin(PainterInfo & pi, int x, int y,
 527         int lmargin, int rmargin) const
 528 {
 529         Dimension const dim = dimension(*pi.base.bv);
 530         BufferView const & bv = *pi.base.bv;
 531
 532         for (idx_type idx = 0; idx < nargs(); ++idx)
 533                 cell(idx).draw(pi, x + lmargin + cellXOffset(bv, idx),
 534                         y + cellYOffset(idx));
 535
 536         for (row_type row = 0; row <= nrows(); ++row)
 537                 for (unsigned int i = 0; i < rowinfo_[row].lines_; ++i) {
 538                         int yy = y + rowinfo_[row].offset_ - rowinfo_[row].ascent_
 539                                 - i * hlinesep() - hlinesep()/2 - rowsep()/2;
 540                         pi.pain.line(x + lmargin + 1, yy,
 541                                      x + dim.width() - rmargin - 1, yy,
 542                                      Color_foreground);
 543                 }
 544
 545         for (col_type col = 0; col <= ncols(); ++col)
 546                 for (unsigned int i = 0; i < colinfo_[col].lines_; ++i) {
 547                         int xx = x + lmargin + colinfo_[col].offset_
 548                                 - i * vlinesep() - vlinesep()/2 - colsep()/2;
 549                         pi.pain.line(xx, y - dim.ascent() + 1,
 550                                      xx, y + dim.descent() - 1,
 551                                      Color_foreground);
 552                 }
 553         drawMarkers2(pi, x, y);
 554 }
 555
 556
 557 void InsetMathGrid::metricsT(TextMetricsInfo const & mi, Dimension & dim) const
 558 {
 559         // let the cells adjust themselves
 560         //InsetMathNest::metrics(mi);
 561         for (idx_type i = 0; i < nargs(); ++i)
 562                 cell(i).metricsT(mi, dim);
 563
 564         // compute absolute sizes of vertical structure
 565         for (row_type row = 0; row < nrows(); ++row) {
 566                 int asc  = 0;
 567                 int desc = 0;
 568                 for (col_type col = 0; col < ncols(); ++col) {
 569                         //MathData const & c = cell(index(row, col));
 570                         // FIXME: BROKEN!
 571                         Dimension dimc;
 572                         asc  = max(asc,  dimc.ascent());
 573                         desc = max(desc, dimc.descent());
 574                 }
 575                 rowinfo_[row].ascent_  = asc;
 576                 rowinfo_[row].descent_ = desc;
 577         }
 578         //rowinfo_[0].ascent_       += hlinesep() * rowinfo_[0].lines_;
 579         rowinfo_[nrows()].ascent_  = 0;
 580         rowinfo_[nrows()].descent_ = 0;
 581
 582         // compute vertical offsets
 583         rowinfo_[0].offset_ = 0;
 584         for (row_type row = 1; row <= nrows(); ++row) {
 585                 rowinfo_[row].offset_  =
 586                         rowinfo_[row - 1].offset_  +
 587                         rowinfo_[row - 1].descent_ +
 588                         //rowinfo_[row - 1].skipPixels(mi) +
 589                         1 + //rowsep() +
 590                         //rowinfo_[row].lines_ * hlinesep() +
 591                         rowinfo_[row].ascent_;
 592         }
 593
 594         // adjust vertical offset
 595         int h = 0;
 596         switch (v_align_) {
 597                 case 't':
 598                         h = 0;
 599                         break;
 600                 case 'b':
 601                         h = rowinfo_[nrows() - 1].offset_;
 602                         break;
 603                 default:
 604                         h = rowinfo_[nrows() - 1].offset_ / 2;
 605         }
 606         for (row_type row = 0; row <= nrows(); ++row)
 607                 rowinfo_[row].offset_ -= h;
 608
 609
 610         // compute absolute sizes of horizontal structure
 611         for (col_type col = 0; col < ncols(); ++col) {
 612                 int wid = 0;
 613                 for (row_type row = 0; row < nrows(); ++row) {
 614                         // FIXME: BROKEN!
 615                         //wid = max(wid, cell(index(row, col)).width());
 616                 }
 617                 colinfo_[col].width_ = wid;
 618         }
 619         colinfo_[ncols()].width_  = 0;
 620
 621         // compute horizontal offsets
 622         colinfo_[0].offset_ = border();
 623         for (col_type col = 1; col <= ncols(); ++col) {
 624                 colinfo_[col].offset_ =
 625                         colinfo_[col - 1].offset_ +
 626                         colinfo_[col - 1].width_ +
 627                         colinfo_[col - 1].skip_ +
 628                         1 ; //colsep() +
 629                         //colinfo_[col].lines_ * vlinesep();
 630         }
 631
 632
 633         dim.wid  =  colinfo_[ncols() - 1].offset_
 634                        + colinfo_[ncols() - 1].width_
 635                  //+ vlinesep() * colinfo_[ncols()].lines_
 636                        + 2;
 637
 638         dim.asc  = -rowinfo_[0].offset_
 639                        + rowinfo_[0].ascent_
 640                  //+ hlinesep() * rowinfo_[0].lines_
 641                        + 1;
 642
 643         dim.des  =  rowinfo_[nrows() - 1].offset_
 644                        + rowinfo_[nrows() - 1].descent_
 645                  //+ hlinesep() * rowinfo_[nrows()].lines_
 646                        + 1;
 647 }
 648
 649
 650 void InsetMathGrid::drawT(TextPainter & /*pain*/, int /*x*/, int /*y*/) const
 651 {
 652 //      for (idx_type idx = 0; idx < nargs(); ++idx)
 653 //              cell(idx).drawT(pain, x + cellXOffset(idx), y + cellYOffset(idx));
 654 }
 655
 656
 657 void InsetMathGrid::updateBuffer(ParIterator const & it, UpdateType utype)
 658 {
 659         // pass down
 660         for (idx_type idx = 0; idx < nargs(); ++idx)
 661                 cell(idx).updateBuffer(it, utype);
 662 }
 663
 664
 665 docstring InsetMathGrid::eolString(row_type row, bool fragile,
 666                 bool /*latex*/, bool last_eoln) const
 667 {
 668         docstring eol;
 669
 670         if (!rowinfo_[row].crskip_.zero())
 671                 eol += '[' + from_utf8(rowinfo_[row].crskip_.asLatexString()) + ']';
 672         else if(!rowinfo_[row].allow_newpage_)
 673                 eol += '*';
 674
 675         // make sure an upcoming '[' does not break anything
 676         if (row + 1 < nrows()) {
 677                 MathData const & c = cell(index(row + 1, 0));
 678                 if (c.size() && c.front()->getChar() == '[')
 679                         //eol += "[0pt]";
 680                         eol += "{}";
 681         }
 682
 683         // only add \\ if necessary
 684         if (eol.empty() && row + 1 == nrows() && (nrows() == 1 || !last_eoln))
 685                 return docstring();
 686
 687         return (fragile ? "\\protect\\\\" : "\\\\") + eol;
 688 }
 689
 690
 691 docstring InsetMathGrid::eocString(col_type col, col_type lastcol) const
 692 {
 693         if (col + 1 == lastcol)
 694                 return docstring();
 695         return from_ascii(" & ");
 696 }
 697
 698
 699 void InsetMathGrid::addRow(row_type row)
 700 {
 701         rowinfo_.insert(rowinfo_.begin() + row + 1, RowInfo());
 702         cells_.insert
 703                 (cells_.begin() + (row + 1) * ncols(), ncols(), MathData());
 704         cellinfo_.insert
 705                 (cellinfo_.begin() + (row + 1) * ncols(), ncols(), CellInfo());
 706 }
 707
 708
 709 void InsetMathGrid::delRow(row_type row)
 710 {
 711         if (nrows() == 1)
 712                 return;
 713
 714         cells_type::iterator it = cells_.begin() + row * ncols();
 715         cells_.erase(it, it + ncols());
 716
 717         vector<CellInfo>::iterator jt = cellinfo_.begin() + row * ncols();
 718         cellinfo_.erase(jt, jt + ncols());
 719
 720         rowinfo_.erase(rowinfo_.begin() + row);
 721 }
 722
 723
 724 void InsetMathGrid::copyRow(row_type row)
 725 {
 726         addRow(row);
 727         for (col_type col = 0; col < ncols(); ++col)
 728                 cells_[(row + 1) * ncols() + col] = cells_[row * ncols() + col];
 729 }
 730
 731
 732 void InsetMathGrid::swapRow(row_type row)
 733 {
 734         if (nrows() == 1)
 735                 return;
 736         if (row + 1 == nrows())
 737                 --row;
 738         for (col_type col = 0; col < ncols(); ++col)
 739                 swap(cells_[row * ncols() + col], cells_[(row + 1) * ncols() + col]);
 740 }
 741
 742
 743 void InsetMathGrid::addCol(col_type newcol)
 744 {
 745         const col_type nc = ncols();
 746         const row_type nr = nrows();
 747         cells_type new_cells((nc + 1) * nr);
 748         vector<CellInfo> new_cellinfo((nc + 1) * nr);
 749
 750         for (row_type row = 0; row < nr; ++row)
 751                 for (col_type col = 0; col < nc; ++col) {
 752                         new_cells[row * (nc + 1) + col + (col >= newcol)]
 753                                 = cells_[row * nc + col];
 754                         new_cellinfo[row * (nc + 1) + col + (col >= newcol)]
 755                                 = cellinfo_[row * nc + col];
 756                 }
 757         swap(cells_, new_cells);
 758         swap(cellinfo_, new_cellinfo);
 759
 760         ColInfo inf;
 761         inf.skip_  = defaultColSpace(newcol);
 762         inf.align_ = defaultColAlign(newcol);
 763         colinfo_.insert(colinfo_.begin() + newcol, inf);
 764 }
 765
 766
 767 void InsetMathGrid::delCol(col_type col)
 768 {
 769         if (ncols() == 1)
 770                 return;
 771
 772         cells_type tmpcells;
 773         vector<CellInfo> tmpcellinfo;
 774         for (col_type i = 0; i < nargs(); ++i)
 775                 if (i % ncols() != col) {
 776                         tmpcells.push_back(cells_[i]);
 777                         tmpcellinfo.push_back(cellinfo_[i]);
 778                 }
 779         swap(cells_, tmpcells);
 780         swap(cellinfo_, tmpcellinfo);
 781
 782         colinfo_.erase(colinfo_.begin() + col);
 783 }
 784
 785
 786 void InsetMathGrid::copyCol(col_type col)
 787 {
 788         addCol(col+1);
 789         for (row_type row = 0; row < nrows(); ++row)
 790                 cells_[row * ncols() + col + 1] = cells_[row * ncols() + col];
 791 }
 792
 793
 794 void InsetMathGrid::swapCol(col_type col)
 795 {
 796         if (ncols() == 1)
 797                 return;
 798         if (col + 1 == ncols())
 799                 --col;
 800         for (row_type row = 0; row < nrows(); ++row)
 801                 swap(cells_[row * ncols() + col], cells_[row * ncols() + col + 1]);
 802 }
 803
 804
 805 int InsetMathGrid::cellXOffset(BufferView const & bv, idx_type idx) const
 806 {
 807         col_type c = col(idx);
 808         int x = colinfo_[c].offset_;
 809         char align = displayColAlign(c, row(idx));
 810         Dimension const & celldim = cell(idx).dimension(bv);
 811         if (align == 'r' || align == 'R')
 812                 x += colinfo_[c].width_ - celldim.wid;
 813         if (align == 'c' || align == 'C')
 814                 x += (colinfo_[c].width_ - celldim.wid) / 2;
 815         return x;
 816 }
 817
 818
 819 int InsetMathGrid::cellYOffset(idx_type idx) const
 820 {
 821         return rowinfo_[row(idx)].offset_;
 822 }
 823
 824
 825 bool InsetMathGrid::idxUpDown(Cursor & cur, bool up) const
 826 {
 827         if (up) {
 828                 if (cur.row() == 0)
 829                         return false;
 830                 cur.idx() -= ncols();
 831         } else {
 832                 if (cur.row() + 1 >= nrows())
 833                         return false;
 834                 cur.idx() += ncols();
 835         }
 836         cur.pos() = cur.cell().x2pos(&cur.bv(), cur.x_target() - cur.cell().xo(cur.bv()));
 837         return true;
 838 }
 839
 840
 841 bool InsetMathGrid::idxBackward(Cursor & cur) const
 842 {
 843         // leave matrix if at the front edge
 844         if (cur.col() == 0)
 845                 return false;
 846         --cur.idx();
 847         cur.pos() = cur.lastpos();
 848         return true;
 849 }
 850
 851
 852 bool InsetMathGrid::idxForward(Cursor & cur) const
 853 {
 854         // leave matrix if at the back edge
 855         if (cur.col() + 1 == ncols())
 856                 return false;
 857         ++cur.idx();
 858         cur.pos() = 0;
 859         return true;
 860 }
 861
 862
 863 bool InsetMathGrid::idxFirst(Cursor & cur) const
 864 {
 865         switch (v_align_) {
 866                 case 't':
 867                         cur.idx() = 0;
 868                         break;
 869                 case 'b':
 870                         cur.idx() = (nrows() - 1) * ncols();
 871                         break;
 872                 default:
 873                         cur.idx() = ((nrows() - 1) / 2) * ncols();
 874         }
 875         cur.pos() = 0;
 876         return true;
 877 }
 878
 879
 880 bool InsetMathGrid::idxLast(Cursor & cur) const
 881 {
 882         switch (v_align_) {
 883                 case 't':
 884                         cur.idx() = ncols() - 1;
 885                         break;
 886                 case 'b':
 887                         cur.idx() = nargs() - 1;
 888                         break;
 889                 default:
 890                         cur.idx() = ((nrows() - 1) / 2 + 1) * ncols() - 1;
 891         }
 892         cur.pos() = cur.lastpos();
 893         return true;
 894 }
 895
 896
 897 bool InsetMathGrid::idxDelete(idx_type & idx)
 898 {
 899         // nothing to do if we have just one row
 900         if (nrows() == 1)
 901                 return false;
 902
 903         // nothing to do if we are in the middle of the last row of the inset
 904         if (idx + ncols() > nargs())
 905                 return false;
 906
 907         // try to delete entire sequence of ncols() empty cells if possible
 908         for (idx_type i = idx; i < idx + ncols(); ++i)
 909                 if (cell(i).size())
 910                         return false;
 911
 912         // move cells if necessary
 913         for (idx_type i = index(row(idx), 0); i < idx; ++i)
 914                 swap(cell(i), cell(i + ncols()));
 915
 916         delRow(row(idx));
 917
 918         if (idx >= nargs())
 919                 idx = nargs() - 1;
 920
 921         // undo effect of Ctrl-Tab (i.e. pull next cell)
 922         //if (idx + 1 != nargs())
 923         //      cell(idx).swap(cell(idx + 1));
 924
 925         // we handled the event..
 926         return true;
 927 }
 928
 929
 930 // reimplement old behaviour when pressing Delete in the last position
 931 // of a cell
 932 void InsetMathGrid::idxGlue(idx_type idx)
 933 {
 934         col_type c = col(idx);
 935         if (c + 1 == ncols()) {
 936                 if (row(idx) + 1 != nrows()) {
 937                         for (col_type cc = 0; cc < ncols(); ++cc)
 938                                 cell(idx).append(cell(idx + cc + 1));
 939                         delRow(row(idx) + 1);
 940                 }
 941         } else {
 942                 cell(idx).append(cell(idx + 1));
 943                 for (col_type cc = c + 2; cc < ncols(); ++cc)
 944                         cell(idx - c + cc - 1) = cell(idx - c + cc);
 945                 cell(idx - c + ncols() - 1).clear();
 946         }
 947 }
 948
 949
 950 InsetMathGrid::RowInfo const & InsetMathGrid::rowinfo(row_type row) const
 951 {
 952         return rowinfo_[row];
 953 }
 954
 955
 956 InsetMathGrid::RowInfo & InsetMathGrid::rowinfo(row_type row)
 957 {
 958         return rowinfo_[row];
 959 }
 960
 961
 962 bool InsetMathGrid::idxBetween(idx_type idx, idx_type from, idx_type to) const
 963 {
 964         row_type const ri = row(idx);
 965         row_type const r1 = min(row(from), row(to));
 966         row_type const r2 = max(row(from), row(to));
 967         col_type const ci = col(idx);
 968         col_type const c1 = min(col(from), col(to));
 969         col_type const c2 = max(col(from), col(to));
 970         return r1 <= ri && ri <= r2 && c1 <= ci && ci <= c2;
 971 }
 972
 973
 974
 975 void InsetMathGrid::normalize(NormalStream & os) const
 976 {
 977         os << "[grid ";
 978         for (row_type row = 0; row < nrows(); ++row) {
 979                 os << "[row ";
 980                 for (col_type col = 0; col < ncols(); ++col)
 981                         os << "[cell " << cell(index(row, col)) << ']';
 982                 os << ']';
 983         }
 984         os << ']';
 985 }
 986
 987
 988 void InsetMathGrid::mathmlize(MathStream & os) const
 989 {
 990         bool const havetable = nrows() > 1 || ncols() > 1;
 991         if (havetable)
 992                 os << MTag("mtable");
 993         char const * const celltag = havetable ? "mtd" : "mrow";
 994         for (row_type row = 0; row < nrows(); ++row) {
 995                 if (havetable)
 996                         os << MTag("mtr");
 997                 for (col_type col = 0; col < ncols(); ++col) {
 998                         os << MTag(celltag);
 999                         os << cell(index(row, col));
1000                         os << ETag(celltag);
1001                 }
1002                 if (havetable)
1003                         os << ETag("mtr");
1004         }
1005         if (havetable)
1006                 os << ETag("mtable");
1007 }
1008
1009
1010 // FIXME XHTML
1011 // We need to do something about alignment here.
1012 void InsetMathGrid::htmlize(HtmlStream & os, string attrib) const
1013 {
1014         bool const havetable = nrows() > 1 || ncols() > 1;
1015         if (!havetable) {
1016                 os << cell(index(0, 0));
1017                 return;
1018         }
1019         os << MTag("table", attrib);
1020         for (row_type row = 0; row < nrows(); ++row) {
1021                 os << MTag("tr");
1022                 for (col_type col = 0; col < ncols(); ++col) {
1023                         os << MTag("td");
1024                         os << cell(index(row, col));
1025                         os << ETag("td");
1026                 }
1027                 os << ETag("tr");
1028         }
1029         os << ETag("table");
1030 }
1031
1032
1033 void InsetMathGrid::htmlize(HtmlStream & os) const
1034 {
1035         htmlize(os, "class='mathtable'");
1036 }
1037
1038
1039 void InsetMathGrid::write(WriteStream & os) const
1040 {
1041         write(os, 0, 0, nrows(), ncols());
1042 }
1043
1044 void InsetMathGrid::write(WriteStream & os,
1045                           row_type beg_row, col_type beg_col,
1046                           row_type end_row, col_type end_col) const
1047 {
1048         MathEnsurer ensurer(os, false);
1049         docstring eol;
1050         for (row_type row = beg_row; row < end_row; ++row) {
1051                 os << verboseHLine(rowinfo_[row].lines_);
1052                 // don't write & and empty cells at end of line,
1053                 // unless there are vertical lines
1054                 col_type lastcol = 0;
1055                 bool emptyline = true;
1056                 bool last_eoln = true;
1057                 for (col_type col = beg_col; col < end_col; ++col) {
1058                         bool const empty_cell = cell(index(row, col)).empty();
1059                         if (!empty_cell)
1060                                 last_eoln = false;
1061                         if (!empty_cell || colinfo_[col + 1].lines_) {
1062                                 lastcol = col + 1;
1063                                 emptyline = false;
1064                         }
1065                 }
1066                 for (col_type col = beg_col; col < lastcol; ++col) {
1067                         os << cell(index(row, col));
1068                         if (os.pendingBrace())
1069                                 ModeSpecifier specifier(os, TEXT_MODE);
1070                         os << eocString(col, lastcol);
1071                 }
1072                 eol = eolString(row, os.fragile(), os.latex(), last_eoln);
1073                 os << eol;
1074                 // append newline only if line wasn't completely empty
1075                 // and the formula is not written on a single line
1076                 bool const empty = emptyline && eol.empty();
1077                 if (!empty && nrows() > 1)
1078                         os << "\n";
1079         }
1080         // @TODO use end_row instead of nrows() ?
1081         docstring const s = verboseHLine(rowinfo_[nrows()].lines_);
1082         if (!s.empty()) {
1083                 if (eol.empty()) {
1084                         if (os.fragile())
1085                                 os << "\\protect";
1086                         os << "\\\\";
1087                 }
1088                 os << s;
1089         }
1090 }
1091
1092
1093 int InsetMathGrid::colsep() const
1094 {
1095         return 6;
1096 }
1097
1098
1099 int InsetMathGrid::rowsep() const
1100 {
1101         return 6;
1102 }
1103
1104
1105 int InsetMathGrid::hlinesep() const
1106 {
1107         return 3;
1108 }
1109
1110
1111 int InsetMathGrid::vlinesep() const
1112 {
1113         return 3;
1114 }
1115
1116
1117 int InsetMathGrid::border() const
1118 {
1119         return 1;
1120 }
1121
1122
1123 void InsetMathGrid::splitCell(Cursor & cur)
1124 {
1125         if (cur.idx() == cur.lastidx())
1126                 return;
1127         MathData ar = cur.cell();
1128         ar.erase(0, cur.pos());
1129         cur.cell().erase(cur.pos(), cur.lastpos());
1130         ++cur.idx();
1131         cur.pos() = 0;
1132         cur.cell().insert(0, ar);
1133 }
1134
1135
1136 void InsetMathGrid::doDispatch(Cursor & cur, FuncRequest & cmd)
1137 {
1138         //lyxerr << "*** InsetMathGrid: request: " << cmd << endl;
1139
1140         Parse::flags parseflg = Parse::QUIET | Parse::USETEXT;
1141
1142         FuncCode const act = cmd.action();
1143         switch (act) {
1144
1145         // insert file functions
1146         case LFUN_LINE_DELETE:
1147                 cur.recordUndoInset();
1148                 //autocorrect_ = false;
1149                 //macroModeClose();
1150                 //if (selection_) {
1151                 //      selDel();
1152                 //      break;
1153                 //}
1154                 if (nrows() > 1)
1155                         delRow(cur.row());
1156                 if (cur.idx() > cur.lastidx())
1157                         cur.idx() = cur.lastidx();
1158                 if (cur.pos() > cur.lastpos())
1159                         cur.pos() = cur.lastpos();
1160                 break;
1161
1162         case LFUN_CELL_SPLIT:
1163                 cur.recordUndo();
1164                 splitCell(cur);
1165                 break;
1166
1167         case LFUN_CELL_BACKWARD:
1168                 // See below.
1169                 cur.setSelection(false);
1170                 if (!idxPrev(cur)) {
1171                         cmd = FuncRequest(LFUN_FINISHED_BACKWARD);
1172                         cur.undispatched();
1173                 }
1174                 break;
1175
1176         case LFUN_CELL_FORWARD:
1177                 // Can't handle selection by additional 'shift' as this is
1178                 // hard bound to LFUN_CELL_BACKWARD
1179                 cur.setSelection(false);
1180                 if (!idxNext(cur)) {
1181                         cmd = FuncRequest(LFUN_FINISHED_FORWARD);
1182                         cur.undispatched();
1183                 }
1184                 break;
1185
1186         case LFUN_NEWLINE_INSERT: {
1187                 cur.recordUndoInset();
1188                 row_type const r = cur.row();
1189                 addRow(r);
1190
1191                 // split line
1192                 for (col_type c = col(cur.idx()) + 1; c < ncols(); ++c)
1193                         swap(cell(index(r, c)), cell(index(r + 1, c)));
1194
1195                 // split cell
1196                 splitCell(cur);
1197                 swap(cell(cur.idx()), cell(cur.idx() + ncols() - 1));
1198                 if (cur.idx() > 0)
1199                         --cur.idx();
1200                 cur.pos() = cur.lastpos();
1201                 cur.forceBufferUpdate();
1202                 //mathcursor->normalize();
1203                 //cmd = FuncRequest(LFUN_FINISHED_BACKWARD);
1204                 break;
1205         }
1206
1207         case LFUN_INSET_MODIFY: {
1208                 cur.recordUndoInset();
1209                 //lyxerr << "handling tabular-feature " << to_utf8(cmd.argument()) << endl;
1210                 istringstream is(to_utf8(cmd.argument()));
1211                 string s;
1212                 is >> s;
1213                 if (s != "tabular") {
1214                         InsetMathNest::doDispatch(cur, cmd);
1215                         return;
1216                 }
1217                 is >> s;
1218                 if (s == "valign-top")
1219                         setVerticalAlignment('t');
1220                 else if (s == "valign-middle")
1221                         setVerticalAlignment('c');
1222                 else if (s == "valign-bottom")
1223                         setVerticalAlignment('b');
1224                 else if (s == "align-left")
1225                         setHorizontalAlignment('l', cur.col());
1226                 else if (s == "align-right")
1227                         setHorizontalAlignment('r', cur.col());
1228                 else if (s == "align-center")
1229                         setHorizontalAlignment('c', cur.col());
1230                 else if (s == "append-row")
1231                         for (int i = 0, n = extractInt(is); i < n; ++i)
1232                                 addRow(cur.row());
1233                 else if (s == "delete-row") {
1234                         cur.clearSelection(); // bug 4323
1235                         for (int i = 0, n = extractInt(is); i < n; ++i) {
1236                                 delRow(cur.row());
1237                                 if (cur.idx() >= nargs())
1238                                         cur.idx() -= ncols();
1239                         }
1240                         cur.pos() = 0; // trick, see below
1241                 }
1242                 else if (s == "copy-row") {
1243                         // Here (as later) we save the cursor col/row
1244                         // in order to restore it after operation.
1245                         row_type const r = cur.row();
1246                         col_type const c = cur.col();
1247                         for (int i = 0, n = extractInt(is); i < n; ++i)
1248                                 copyRow(cur.row());
1249                         cur.idx() = index(r, c);
1250                 }
1251                 else if (s == "swap-row") {
1252                         swapRow(cur.row());
1253                         // Trick to suppress same-idx-means-different-cell
1254                         // assertion crash:
1255                         cur.pos() = 0;
1256                 }
1257                 else if (s == "add-hline-above")
1258                         rowinfo_[cur.row()].lines_++;
1259                 else if (s == "add-hline-below")
1260                         rowinfo_[cur.row()+1].lines_++;
1261                 else if (s == "delete-hline-above")
1262                         rowinfo_[cur.row()].lines_--;
1263                 else if (s == "delete-hline-below")
1264                         rowinfo_[cur.row()+1].lines_--;
1265                 else if (s == "append-column") {
1266                         row_type const r = cur.row();
1267                         col_type const c = cur.col();
1268                         for (int i = 0, n = extractInt(is); i < n; ++i)
1269                                 addCol(cur.col() + 1);
1270                         cur.idx() = index(r, c);
1271                 }
1272                 else if (s == "delete-column") {
1273                         cur.clearSelection(); // bug 4323
1274                         row_type const r = cur.row();
1275                         col_type const c = cur.col();
1276                         for (int i = 0, n = extractInt(is); i < n; ++i)
1277                                 delCol(col(cur.idx()));
1278                         cur.idx() = index(r, min(c, cur.ncols() - 1));
1279                         cur.pos() = 0; // trick, see above
1280                 }
1281                 else if (s == "copy-column") {
1282                         row_type const r = cur.row();
1283                         col_type const c = cur.col();
1284                         copyCol(cur.col());
1285                         cur.idx() = index(r, c);
1286                 }
1287                 else if (s == "swap-column") {
1288                         swapCol(cur.col());
1289                         cur.pos() = 0; // trick, see above
1290                 }
1291                 else if (s == "add-vline-left") {
1292                         colinfo_[cur.col()].lines_++;
1293                         if (!colinfo_[cur.col()].special_.empty())
1294                                 colinfo_[cur.col()].special_ += '|';
1295                 }
1296                 else if (s == "add-vline-right") {
1297                         colinfo_[cur.col()+1].lines_++;
1298                         if (!colinfo_[cur.col()+1].special_.empty())
1299                                 colinfo_[cur.col()+1].special_.insert(0, 1, '|');
1300                 }
1301                 else if (s == "delete-vline-left") {
1302                         colinfo_[cur.col()].lines_--;
1303                         docstring & special = colinfo_[cur.col()].special_;
1304                         if (!special.empty()) {
1305                                 docstring::size_type i = special.rfind('|');
1306                                 LASSERT(i != docstring::npos, /**/);
1307                                 special.erase(i, 1);
1308                         }
1309                 }
1310                 else if (s == "delete-vline-right") {
1311                         colinfo_[cur.col()+1].lines_--;
1312                         docstring & special = colinfo_[cur.col()+1].special_;
1313                         if (!special.empty()) {
1314                                 docstring::size_type i = special.find('|');
1315                                 LASSERT(i != docstring::npos, /**/);
1316                                 special.erase(i, 1);
1317                         }
1318                 }
1319                 else {
1320                         cur.undispatched();
1321                         break;
1322                 }
1323                 // perhaps this should be FINISHED_BACKWARD -- just for clarity?
1324                 //lyxerr << "returning FINISHED_LEFT" << endl;
1325                 break;
1326         }
1327
1328         case LFUN_CLIPBOARD_PASTE:
1329                 parseflg |= Parse::VERBATIM;
1330                 // fall through
1331         case LFUN_PASTE: {
1332                 if (cur.currentMode() <= TEXT_MODE)
1333                         parseflg |= Parse::TEXTMODE;
1334                 cur.message(_("Paste"));
1335                 cap::replaceSelection(cur);
1336                 docstring topaste;
1337                 if (cmd.argument().empty() && !theClipboard().isInternal())
1338                         topaste = theClipboard().getAsText();
1339                 else {
1340                         idocstringstream is(cmd.argument());
1341                         int n = 0;
1342                         is >> n;
1343                         topaste = cap::selection(n);
1344                 }
1345                 InsetMathGrid grid(buffer_, 1, 1);
1346                 if (!topaste.empty())
1347                         if ((topaste.size() == 1 && topaste.at(0) < 0x80)
1348                             || !mathed_parse_normal(grid, topaste, parseflg)) {
1349                                 resetGrid(grid);
1350                                 mathed_parse_normal(grid, topaste, parseflg | Parse::VERBATIM);
1351                         }
1352
1353                 bool hline_enabled = false;
1354                 FuncRequest fr = FuncRequest(LFUN_INSET_MODIFY, "tabular add-hline-above");
1355                 FuncStatus status;
1356                 if (getStatus(cur, fr, status))
1357                         hline_enabled = status.enabled();
1358                 if (grid.nargs() == 1) {
1359                         // single cell/part of cell
1360                         cur.recordUndo();
1361                         cur.cell().insert(cur.pos(), grid.cell(0));
1362                         cur.pos() += grid.cell(0).size();
1363                         if (hline_enabled)
1364                                 rowinfo_[cur.row()].lines_ += grid.rowinfo_[0].lines_;
1365                         else {
1366                                 for (unsigned int l = 0; l < grid.rowinfo_[0].lines_; ++l) {
1367                                          cur.cell().insert(0,
1368                                                 MathAtom(new InsetMathUnknown(from_ascii("\\hline"))));
1369                                          cur.pos()++;
1370                                 }
1371                         }
1372                 } else {
1373                         // multiple cells
1374                         cur.recordUndoInset();
1375                         col_type const numcols =
1376                                 min(grid.ncols(), ncols() - col(cur.idx()));
1377                         row_type const numrows =
1378                                 min(grid.nrows(), nrows() - cur.row());
1379                         for (row_type r = 0; r < numrows; ++r) {
1380                                 for (col_type c = 0; c < numcols; ++c) {
1381                                         idx_type i = index(r + cur.row(), c + col(cur.idx()));
1382                                         cell(i).insert(0, grid.cell(grid.index(r, c)));
1383                                 }
1384                                 if (hline_enabled)
1385                                         rowinfo_[r].lines_ += grid.rowinfo_[r].lines_;
1386                                 else {
1387                                         for (unsigned int l = 0; l < grid.rowinfo_[r].lines_; ++l) {
1388                                                 idx_type i = index(r + cur.row(), 0);
1389                                                 cell(i).insert(0,
1390                                                         MathAtom(new InsetMathUnknown(from_ascii("\\hline"))));
1391                                         }
1392                                 }
1393                                 // append the left over horizontal cells to the last column
1394                                 idx_type i = index(r + cur.row(), ncols() - 1);
1395                                 for (InsetMath::col_type c = numcols; c < grid.ncols(); ++c)
1396                                         cell(i).append(grid.cell(grid.index(r, c)));
1397                         }
1398                         // append the left over vertical cells to the last _cell_
1399                         idx_type i = nargs() - 1;
1400                         for (row_type r = numrows; r < grid.nrows(); ++r) {
1401                                 for (col_type c = 0; c < grid.ncols(); ++c)
1402                                         cell(i).append(grid.cell(grid.index(r, c)));
1403                                 if (hline_enabled)
1404                                         rowinfo_[r].lines_ += grid.rowinfo_[r].lines_;
1405                                 else {
1406                                         for (unsigned int l = 0; l < grid.rowinfo_[r].lines_; ++l) {
1407                                                 cell(i).insert(0,
1408                                                         MathAtom(new InsetMathUnknown(from_ascii("\\hline"))));
1409                                         }
1410                                 }
1411                         }
1412                 }
1413                 cur.clearSelection(); // bug 393
1414                 // FIXME audit setBuffer calls
1415                 cur.inset().setBuffer(*buffer_);
1416                 cur.forceBufferUpdate();
1417                 cur.finishUndo();
1418                 break;
1419         }
1420
1421         case LFUN_LINE_BEGIN_SELECT:
1422         case LFUN_LINE_BEGIN:
1423         case LFUN_WORD_BACKWARD_SELECT:
1424         case LFUN_WORD_BACKWARD:
1425         case LFUN_WORD_LEFT_SELECT:
1426         case LFUN_WORD_LEFT:
1427                 cur.selHandle(act == LFUN_WORD_BACKWARD_SELECT ||
1428                                 act == LFUN_WORD_LEFT_SELECT ||
1429                                 act == LFUN_LINE_BEGIN_SELECT);
1430                 cur.macroModeClose();
1431                 if (cur.pos() != 0) {
1432                         cur.pos() = 0;
1433                 } else if (cur.idx() % cur.ncols() != 0) {
1434                         cur.idx() -= cur.idx() % cur.ncols();
1435                         cur.pos() = 0;
1436                 } else if (cur.idx() != 0) {
1437                         cur.idx() = 0;
1438                         cur.pos() = 0;
1439                 } else {
1440                         cmd = FuncRequest(LFUN_FINISHED_BACKWARD);
1441                         cur.undispatched();
1442                 }
1443                 break;
1444
1445         case LFUN_WORD_FORWARD_SELECT:
1446         case LFUN_WORD_FORWARD:
1447         case LFUN_WORD_RIGHT_SELECT:
1448         case LFUN_WORD_RIGHT:
1449         case LFUN_LINE_END_SELECT:
1450         case LFUN_LINE_END:
1451                 cur.selHandle(act == LFUN_WORD_FORWARD_SELECT ||
1452                                 act == LFUN_WORD_RIGHT_SELECT ||
1453                                 act == LFUN_LINE_END_SELECT);
1454                 cur.macroModeClose();
1455                 cur.clearTargetX();
1456                 if (cur.pos() != cur.lastpos()) {
1457                         cur.pos() = cur.lastpos();
1458                 } else if ((cur.idx() + 1) % cur.ncols() != 0) {
1459                         cur.idx() += cur.ncols() - 1 - cur.idx() % cur.ncols();
1460                         cur.pos() = cur.lastpos();
1461                 } else if (cur.idx() != cur.lastidx()) {
1462                         cur.idx() = cur.lastidx();
1463                         cur.pos() = cur.lastpos();
1464                 } else {
1465                         cmd = FuncRequest(LFUN_FINISHED_FORWARD);
1466                         cur.undispatched();
1467                 }
1468                 break;
1469
1470         default:
1471                 InsetMathNest::doDispatch(cur, cmd);
1472         }
1473 }
1474
1475
1476 bool InsetMathGrid::getStatus(Cursor & cur, FuncRequest const & cmd,
1477                 FuncStatus & status) const
1478 {
1479         switch (cmd.action()) {
1480         case LFUN_INSET_MODIFY: {
1481                 istringstream is(to_utf8(cmd.argument()));
1482                 string s;
1483                 is >> s;
1484                 if (s != "tabular") {
1485                         // We only now about table actions here.
1486                         break;
1487                 }
1488                 if (&cur.inset() != this) {
1489                         // Table actions requires that the cursor is _inside_ the
1490                         // table.
1491                         status.setEnabled(false);
1492                         status.message(from_utf8(N_("Cursor not in table")));
1493                         return true;
1494                 }
1495                 is >> s;
1496                 if (nrows() <= 1 && (s == "delete-row" || s == "swap-row")) {
1497                         status.setEnabled(false);
1498                         status.message(from_utf8(N_("Only one row")));
1499                         return true;
1500                 }
1501                 if (ncols() <= 1 &&
1502                     (s == "delete-column" || s == "swap-column")) {
1503                         status.setEnabled(false);
1504                         status.message(from_utf8(N_("Only one column")));
1505                         return true;
1506                 }
1507                 if ((rowinfo_[cur.row()].lines_ == 0 &&
1508                      s == "delete-hline-above") ||
1509                     (rowinfo_[cur.row() + 1].lines_ == 0 &&
1510                      s == "delete-hline-below")) {
1511                         status.setEnabled(false);
1512                         status.message(from_utf8(N_("No hline to delete")));
1513                         return true;
1514                 }
1515
1516                 if ((colinfo_[cur.col()].lines_ == 0 &&
1517                      s == "delete-vline-left") ||
1518                     (colinfo_[cur.col() + 1].lines_ == 0 &&
1519                      s == "delete-vline-right")) {
1520                         status.setEnabled(false);
1521                         status.message(from_utf8(N_("No vline to delete")));
1522                         return true;
1523                 }
1524                 if (s == "valign-top" || s == "valign-middle" ||
1525                     s == "valign-bottom" || s == "align-left" ||
1526                     s == "align-right" || s == "align-center") {
1527                         status.setEnabled(true);
1528                         char const ha = horizontalAlignment(cur.col());
1529                         char const va = verticalAlignment();
1530                         status.setOnOff((s == "align-left" && ha == 'l')
1531                                         || (s == "align-right"   && ha == 'r')
1532                                         || (s == "align-center"  && ha == 'c')
1533                                         || (s == "valign-top"    && va == 't')
1534                                         || (s == "valign-bottom" && va == 'b')
1535                                         || (s == "valign-middle" && va == 'c'));
1536                         return true;
1537                 }
1538                 if (s == "append-row" || s == "delete-row" ||
1539                     s == "copy-row" || s == "swap-row" ||
1540                     s == "add-hline-above" || s == "add-hline-below" ||
1541                     s == "delete-hline-above" || s == "delete-hline-below" ||
1542                     s == "append-column" || s == "delete-column" ||
1543                     s == "copy-column" || s == "swap-column" ||
1544                     s == "add-vline-left" || s == "add-vline-right" ||
1545                     s == "delete-vline-left" || s == "delete-vline-right") {
1546                         status.setEnabled(true);
1547                 } else {
1548                         status.setEnabled(false);
1549                         status.message(bformat(
1550                                 from_utf8(N_("Unknown tabular feature '%1$s'")), lyx::from_ascii(s)));
1551                 }
1552
1553 #if 0
1554                 // FIXME: What did this code do?
1555                 // Please check whether it is still needed!
1556                 // should be more precise
1557                 if (v_align_ == '\0') {
1558                         status.enable(true);
1559                         break;
1560                 }
1561                 if (cmd.argument().empty()) {
1562                         status.enable(false);
1563                         break;
1564                 }
1565                 if (!contains("tcb", cmd.argument()[0])) {
1566                         status.enable(false);
1567                         break;
1568                 }
1569                 status.setOnOff(cmd.argument()[0] == v_align_);
1570                 status.setEnabled(true);
1571 #endif
1572                 return true;
1573         }
1574
1575         case LFUN_CELL_SPLIT:
1576                 status.setEnabled(cur.idx() != cur.lastidx());
1577                 return true;
1578
1579         case LFUN_CELL_BACKWARD:
1580         case LFUN_CELL_FORWARD:
1581                 status.setEnabled(true);
1582                 return true;
1583
1584         default:
1585                 break;
1586         }
1587         return InsetMathNest::getStatus(cur, cmd, status);
1588 }
1589
1590
1591 } // namespace lyx