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