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