src/CutAndPaste.C

   1 /*
   2  * \file CutAndPaste.C
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author Jürgen Vigna
   7  * \author Lars Gullik Bjønnes
   8  * \author Alfredo Braunstein
   9  *
  10  * Full author contact details are available in file CREDITS.
  11  */
  12
  13 #include <config.h>
  14
  15 #include "CutAndPaste.h"
  16
  17 #include "buffer.h"
  18 #include "buffer_funcs.h"
  19 #include "bufferparams.h"
  20 #include "BufferView.h"
  21 #include "cursor.h"
  22 #include "debug.h"
  23 #include "errorlist.h"
  24 #include "funcrequest.h"
  25 #include "gettext.h"
  26 #include "insetiterator.h"
  27 #include "lfuns.h"
  28 #include "lyxrc.h"
  29 #include "lyxtext.h"
  30 #include "lyxtextclasslist.h"
  31 #include "paragraph.h"
  32 #include "paragraph_funcs.h"
  33 #include "ParagraphParameters.h"
  34 #include "ParagraphList_fwd.h"
  35 #include "pariterator.h"
  36 #include "undo.h"
  37
  38 #include "insets/insetcharstyle.h"
  39 #include "insets/insettabular.h"
  40
  41 #include "mathed/math_data.h"
  42 #include "mathed/math_inset.h"
  43 #include "mathed/math_support.h"
  44
  45 #include "support/lstrings.h"
  46
  47 #include <boost/tuple/tuple.hpp>
  48
  49 using lyx::pos_type;
  50 using lyx::pit_type;
  51 using lyx::textclass_type;
  52
  53 using lyx::support::bformat;
  54
  55 using std::endl;
  56 using std::for_each;
  57 using std::make_pair;
  58 using std::pair;
  59 using std::vector;
  60 using std::string;
  61
  62
  63 namespace {
  64
  65 typedef std::pair<lyx::pit_type, int> PitPosPair;
  66
  67 typedef limited_stack<pair<ParagraphList, textclass_type> > CutStack;
  68
  69 CutStack theCuts(10);
  70
  71 // store whether the tabular stack is newer than the normal copy stack
  72 // FIXME: this is a workaround for bug 1919. Should be removed for 1.5,
  73 // when we (hopefully) have a one-for-all paste mechanism.
  74 bool dirty_tabular_stack_;
  75
  76 class resetOwnerAndChanges : public std::unary_function<Paragraph, void> {
  77 public:
  78         void operator()(Paragraph & p) const {
  79                 p.cleanChanges();
  80                 p.setInsetOwner(0);
  81         }
  82 };
  83
  84
  85 void region(CursorSlice const & i1, CursorSlice const & i2,
  86         InsetBase::row_type & r1, InsetBase::row_type & r2,
  87         InsetBase::col_type & c1, InsetBase::col_type & c2)
  88 {
  89         InsetBase & p = i1.inset();
  90         c1 = p.col(i1.idx());
  91         c2 = p.col(i2.idx());
  92         if (c1 > c2)
  93                 std::swap(c1, c2);
  94         r1 = p.row(i1.idx());
  95         r2 = p.row(i2.idx());
  96         if (r1 > r2)
  97                 std::swap(r1, r2);
  98 }
  99
 100
 101 bool checkPastePossible(int index)
 102 {
 103         return size_t(index) < theCuts.size() && !theCuts[index].first.empty();
 104 }
 105
 106
 107 pair<PitPosPair, pit_type>
 108 pasteSelectionHelper(Buffer const & buffer,
 109                      ParagraphList & pars, pit_type pit, int pos,
 110                      ParagraphList const & parlist, textclass_type textclass,
 111                      ErrorList & errorlist)
 112 {
 113         if (parlist.empty())
 114                 return make_pair(PitPosPair(pit, pos), pit);
 115
 116         BOOST_ASSERT (pos <= pars[pit].size());
 117
 118         // Make a copy of the CaP paragraphs.
 119         ParagraphList insertion = parlist;
 120         textclass_type const tc = buffer.params().textclass;
 121
 122         // Now remove all out of the pars which is NOT allowed in the
 123         // new environment and set also another font if that is required.
 124
 125         // Convert newline to paragraph break in ERT inset.
 126         // This should not be here!
 127         if (pars[pit].inInset() &&
 128             pars[pit].inInset()->lyxCode() == InsetBase::ERT_CODE) {
 129                 for (ParagraphList::size_type i = 0; i < insertion.size(); ++i) {
 130                         for (pos_type j = 0; j < insertion[i].size(); ++j) {
 131                                 if (insertion[i].isNewline(j)) {
 132                                         insertion[i].erase(j);
 133                                         breakParagraphConservative(
 134                                                         buffer.params(),
 135                                                         insertion, i, j);
 136                                 }
 137                         }
 138                 }
 139         }
 140
 141         // Make sure there is no class difference.
 142         lyx::cap::SwitchBetweenClasses(textclass, tc, insertion, errorlist);
 143
 144         ParagraphList::iterator tmpbuf = insertion.begin();
 145         int depth_delta = pars[pit].params().depth() - tmpbuf->params().depth();
 146
 147         Paragraph::depth_type max_depth = pars[pit].getMaxDepthAfter();
 148
 149         for (; tmpbuf != insertion.end(); ++tmpbuf) {
 150                 // If we have a negative jump so that the depth would
 151                 // go below 0 depth then we have to redo the delta to
 152                 // this new max depth level so that subsequent
 153                 // paragraphs are aligned correctly to this paragraph
 154                 // at level 0.
 155                 if (int(tmpbuf->params().depth()) + depth_delta < 0)
 156                         depth_delta = 0;
 157
 158                 // Set the right depth so that we are not too deep or shallow.
 159                 tmpbuf->params().depth(tmpbuf->params().depth() + depth_delta);
 160                 if (tmpbuf->params().depth() > max_depth)
 161                         tmpbuf->params().depth(max_depth);
 162
 163                 // Only set this from the 2nd on as the 2nd depends
 164                 // for maxDepth still on pit.
 165                 if (tmpbuf != insertion.begin())
 166                         max_depth = tmpbuf->getMaxDepthAfter();
 167
 168                 // Set the inset owner of this paragraph.
 169                 tmpbuf->setInsetOwner(pars[pit].inInset());
 170                 for (pos_type i = 0; i < tmpbuf->size(); ++i) {
 171                         if (tmpbuf->getChar(i) == Paragraph::META_INSET &&
 172                             !pars[pit].insetAllowed(tmpbuf->getInset(i)->lyxCode()))
 173                                 tmpbuf->erase(i--);
 174                 }
 175         }
 176
 177         bool const empty = pars[pit].empty();
 178         if (!empty) {
 179                 // Make the buf exactly the same layout as the cursor
 180                 // paragraph.
 181                 insertion.begin()->makeSameLayout(pars[pit]);
 182         }
 183
 184         // Prepare the paragraphs and insets for insertion.
 185         // A couple of insets store buffer references so need updating.
 186         InsetText in;
 187         std::swap(in.paragraphs(), insertion);
 188
 189         ParIterator fpit = par_iterator_begin(in);
 190         ParIterator fend = par_iterator_end(in);
 191
 192         for (; fpit != fend; ++fpit) {
 193                 InsetList::iterator lit = fpit->insetlist.begin();
 194                 InsetList::iterator eit = fpit->insetlist.end();
 195
 196                 for (; lit != eit; ++lit) {
 197                         switch (lit->inset->lyxCode()) {
 198                         case InsetBase::TABULAR_CODE: {
 199                                 InsetTabular * it = static_cast<InsetTabular*>(lit->inset);
 200                                 it->buffer(&buffer);
 201                                 break;
 202                         }
 203
 204                         default:
 205                                 break; // nothing
 206                         }
 207                 }
 208         }
 209         std::swap(in.paragraphs(), insertion);
 210
 211         // Split the paragraph for inserting the buf if necessary.
 212         if (!empty)
 213                 breakParagraphConservative(buffer.params(), pars, pit, pos);
 214
 215         // Paste it!
 216         if (empty) {
 217                 pars.insert(pars.begin() + pit, insertion.begin(),
 218                             insertion.end());
 219
 220                 // merge the empty par with the last par of the insertion
 221                 mergeParagraph(buffer.params(), pars,
 222                                pit + insertion.size() - 1);
 223         } else {
 224                 pars.insert(pars.begin() + pit + 1, insertion.begin(),
 225                             insertion.end());
 226
 227                 // merge the first par of the insertion with the current par
 228                 mergeParagraph(buffer.params(), pars, pit);
 229         }
 230
 231         pit_type last_paste = pit + insertion.size() - 1;
 232
 233         // Store the new cursor position.
 234         pit = last_paste;
 235         pos = pars[last_paste].size();
 236
 237         // Maybe some pasting.
 238         if (!empty && last_paste + 1 != pit_type(pars.size())) {
 239                 if (pars[last_paste + 1].hasSameLayout(pars[last_paste])) {
 240                         mergeParagraph(buffer.params(), pars, last_paste);
 241                 } else if (pars[last_paste + 1].empty()) {
 242                         pars[last_paste + 1].makeSameLayout(pars[last_paste]);
 243                         mergeParagraph(buffer.params(), pars, last_paste);
 244                 } else if (pars[last_paste].empty()) {
 245                         pars[last_paste].makeSameLayout(pars[last_paste + 1]);
 246                         mergeParagraph(buffer.params(), pars, last_paste);
 247                 } else {
 248                         pars[last_paste + 1].stripLeadingSpaces();
 249                         ++last_paste;
 250                 }
 251         }
 252
 253         return make_pair(PitPosPair(pit, pos), last_paste + 1);
 254 }
 255
 256
 257 PitPosPair eraseSelectionHelper(BufferParams const & params,
 258         ParagraphList & pars,
 259         pit_type startpit, pit_type endpit,
 260         int startpos, int endpos, bool doclear)
 261 {
 262         // Start of selection is really invalid.
 263         if (startpit == pit_type(pars.size()) ||
 264             (startpos > pars[startpit].size()))
 265                 return PitPosPair(endpit, endpos);
 266
 267         // Start and end is inside same paragraph
 268         if (endpit == pit_type(pars.size()) ||
 269             startpit == endpit) {
 270                 endpos -= pars[startpit].erase(startpos, endpos);
 271                 return PitPosPair(endpit, endpos);
 272         }
 273
 274         bool all_erased = true;
 275
 276         // Clear fragments of the first par in selection
 277         pars[startpit].erase(startpos, pars[startpit].size());
 278         if (pars[startpit].size() != startpos)
 279                 all_erased = false;
 280
 281         // Clear fragments of the last par in selection
 282         endpos -= pars[endpit].erase(0, endpos);
 283         if (endpos != 0)
 284                 all_erased = false;
 285
 286         // Erase all the "middle" paragraphs.
 287         if (params.tracking_changes) {
 288                 // Look through the deleted pars if any, erasing as needed
 289                 for (pit_type pit = startpit + 1; pit != endpit;) {
 290                         // "erase" the contents of the par
 291                         pars[pit].erase(0, pars[pit].size());
 292                         if (pars[pit].empty()) {
 293                                 // remove the par if it's now empty
 294                                 pars.erase(pars.begin() + pit);
 295                                 --endpit;
 296                         } else {
 297                                 ++pit;
 298                                 all_erased = false;
 299                         }
 300                 }
 301         } else {
 302                 pars.erase(pars.begin() + startpit + 1, pars.begin() + endpit);
 303                 endpit = startpit + 1;
 304         }
 305
 306 #if 0 // FIXME: why for cut but not copy ?
 307         // the cut selection should begin with standard layout
 308         if (realcut) {
 309                 buf->params().clear();
 310                 buf->bibkey = 0;
 311                 buf->layout(textclasslist[buffer->params.textclass].defaultLayoutName());
 312         }
 313 #endif
 314
 315         if (startpit + 1 == pit_type(pars.size()))
 316                 return PitPosPair(endpit, endpos);
 317
 318         if (doclear) {
 319                 pars[startpit + 1].stripLeadingSpaces();
 320         }
 321
 322         // Merge first and last paragraph, if possible
 323         if (all_erased &&
 324             (pars[startpit].hasSameLayout(pars[startpit + 1]) ||
 325              pars[startpit + 1].empty())) {
 326                 mergeParagraph(params, pars, startpit);
 327                 // This because endpar gets deleted here!
 328                 endpit = startpit;
 329                 endpos = startpos;
 330         }
 331
 332         return PitPosPair(endpit, endpos);
 333 }
 334
 335
 336 void copySelectionHelper(ParagraphList & pars,
 337         pit_type startpit, pit_type endpit,
 338         int start, int end, textclass_type tc)
 339 {
 340         BOOST_ASSERT(0 <= start && start <= pars[startpit].size());
 341         BOOST_ASSERT(0 <= end && end <= pars[endpit].size());
 342         BOOST_ASSERT(startpit != endpit || start <= end);
 343
 344         // Clone the paragraphs within the selection.
 345         ParagraphList paragraphs(pars.begin() + startpit, pars.begin() + endpit + 1);
 346
 347         for_each(paragraphs.begin(), paragraphs.end(), resetOwnerAndChanges());
 348
 349         // Cut out the end of the last paragraph.
 350         Paragraph & back = paragraphs.back();
 351         back.erase(end, back.size());
 352
 353         // Cut out the begin of the first paragraph
 354         Paragraph & front = paragraphs.front();
 355         front.erase(0, start);
 356
 357         theCuts.push(make_pair(paragraphs, tc));
 358 }
 359
 360 } // namespace anon
 361
 362
 363
 364
 365 namespace lyx {
 366 namespace cap {
 367
 368 string grabAndEraseSelection(LCursor & cur)
 369 {
 370         if (!cur.selection())
 371                 return string();
 372         string res = grabSelection(cur);
 373         eraseSelection(cur);
 374         return res;
 375 }
 376
 377
 378 void SwitchBetweenClasses(textclass_type c1, textclass_type c2,
 379         ParagraphList & pars, ErrorList & errorlist)
 380 {
 381         BOOST_ASSERT(!pars.empty());
 382         if (c1 == c2)
 383                 return;
 384
 385         LyXTextClass const & tclass1 = textclasslist[c1];
 386         LyXTextClass const & tclass2 = textclasslist[c2];
 387
 388         InsetText in;
 389         std::swap(in.paragraphs(), pars);
 390
 391         // layouts
 392         ParIterator end = par_iterator_end(in);
 393         for (ParIterator it = par_iterator_begin(in); it != end; ++it) {
 394                 string const name = it->layout()->name();
 395                 bool hasLayout = tclass2.hasLayout(name);
 396
 397                 if (hasLayout)
 398                         it->layout(tclass2[name]);
 399                 else
 400                         it->layout(tclass2.defaultLayout());
 401
 402                 if (!hasLayout && name != tclass1.defaultLayoutName()) {
 403                         string const s = bformat(
 404                                 _("Layout had to be changed from\n%1$s to %2$s\n"
 405                                 "because of class conversion from\n%3$s to %4$s"),
 406                          name, it->layout()->name(), tclass1.name(), tclass2.name());
 407                         // To warn the user that something had to be done.
 408                         errorlist.push_back(ErrorItem(_("Changed Layout"), s,
 409                                                       it->id(), 0,
 410                                                       it->size()));
 411                 }
 412         }
 413
 414         // character styles
 415         InsetIterator const i_end = inset_iterator_end(in);
 416         for (InsetIterator it = inset_iterator_begin(in); it != i_end; ++it) {
 417                 if (it->lyxCode() == InsetBase::CHARSTYLE_CODE) {
 418                         InsetCharStyle & inset =
 419                                 static_cast<InsetCharStyle &>(*it);
 420                         string const name = inset.params().type;
 421                         CharStyles::iterator const found_cs =
 422                                 tclass2.charstyle(name);
 423                         if (found_cs == tclass2.charstyles().end()) {
 424                                 // The character style is undefined in tclass2
 425                                 inset.setUndefined();
 426                                 string const s = bformat(_(
 427                                         "Character style %1$s is "
 428                                         "undefined because of class "
 429                                         "conversion from\n%2$s to %3$s"),
 430                                          name, tclass1.name(), tclass2.name());
 431                                 // To warn the user that something had to be done.
 432                                 errorlist.push_back(ErrorItem(
 433                                                 _("Undefined character style"),
 434                                                 s, it.paragraph().id(),
 435                                                 it.pos(), it.pos() + 1));
 436                         } else if (inset.undefined()) {
 437                                 // The character style is undefined in
 438                                 // tclass1 and is defined in tclass2
 439                                 inset.setDefined(found_cs);
 440                         }
 441                 }
 442         }
 443
 444         std::swap(in.paragraphs(), pars);
 445 }
 446
 447
 448 std::vector<string> const availableSelections(Buffer const & buffer)
 449 {
 450         vector<string> selList;
 451
 452         CutStack::const_iterator cit = theCuts.begin();
 453         CutStack::const_iterator end = theCuts.end();
 454         for (; cit != end; ++cit) {
 455                 // we do not use cit-> here because gcc 2.9x does not
 456                 // like it (JMarc)
 457                 ParagraphList const & pars = (*cit).first;
 458                 string asciiSel;
 459                 ParagraphList::const_iterator pit = pars.begin();
 460                 ParagraphList::const_iterator pend = pars.end();
 461                 for (; pit != pend; ++pit) {
 462                         asciiSel += pit->asString(buffer, false);
 463                         if (asciiSel.size() > 25) {
 464                                 asciiSel.replace(22, string::npos, "...");
 465                                 break;
 466                         }
 467                 }
 468
 469                 selList.push_back(asciiSel);
 470         }
 471
 472         return selList;
 473 }
 474
 475
 476 lyx::size_type numberOfSelections()
 477 {
 478         return theCuts.size();
 479 }
 480
 481
 482 void cutSelection(LCursor & cur, bool doclear, bool realcut)
 483 {
 484         // This doesn't make sense, if there is no selection
 485         if (!cur.selection())
 486                 return;
 487
 488         // OK, we have a selection. This is always between cur.selBegin()
 489         // and cur.selEnd()
 490
 491         if (cur.inTexted()) {
 492                 LyXText * text = cur.text();
 493                 BOOST_ASSERT(text);
 494                 // Stuff what we got on the clipboard. Even if there is no selection.
 495
 496                 // There is a problem with having the stuffing here in that the
 497                 // larger the selection the slower LyX will get. This can be
 498                 // solved by running the line below only when the selection has
 499                 // finished. The solution used currently just works, to make it
 500                 // faster we need to be more clever and probably also have more
 501                 // calls to stuffClipboard. (Lgb)
 502 //              cur.bv().stuffClipboard(cur.selectionAsString(true));
 503
 504                 // make sure that the depth behind the selection are restored, too
 505                 recordUndoSelection(cur);
 506                 pit_type begpit = cur.selBegin().pit();
 507                 pit_type endpit = cur.selEnd().pit();
 508
 509                 int endpos = cur.selEnd().pos();
 510
 511                 BufferParams const & bp = cur.buffer().params();
 512                 if (realcut) {
 513                         copySelectionHelper(text->paragraphs(),
 514                                 begpit, endpit,
 515                                 cur.selBegin().pos(), endpos,
 516                                 bp.textclass);
 517                 }
 518
 519                 boost::tie(endpit, endpos) =
 520                         eraseSelectionHelper(bp,
 521                                 text->paragraphs(),
 522                                 begpit, endpit,
 523                                 cur.selBegin().pos(), endpos,
 524                                 doclear);
 525
 526                 // sometimes necessary
 527                 if (doclear)
 528                         text->paragraphs()[begpit].stripLeadingSpaces();
 529
 530                 // cutSelection can invalidate the cursor so we need to set
 531                 // it anew. (Lgb)
 532                 // we prefer the end for when tracking changes
 533                 cur.pos() = endpos;
 534                 cur.pit() = endpit;
 535
 536                 // need a valid cursor. (Lgb)
 537                 cur.clearSelection();
 538                 updateCounters(cur.buffer());
 539
 540                 // tell tabular that a recent copy happened
 541                 dirtyTabularStack(false);
 542         }
 543
 544         if (cur.inMathed()) {
 545                 if (cur.selBegin().idx() != cur.selEnd().idx()) {
 546                         // The current selection spans more than one cell.
 547                         // Record all cells
 548                         recordUndoInset(cur);
 549                 } else {
 550                         // Record only the current cell to avoid a jumping
 551                         // cursor after undo
 552                         recordUndo(cur);
 553                 }
 554                 if (realcut)
 555                         copySelection(cur);
 556                 eraseSelection(cur);
 557         }
 558 }
 559
 560
 561 void copySelection(LCursor & cur)
 562 {
 563         // stuff the selection onto the X clipboard, from an explicit copy request
 564         cur.bv().stuffClipboard(cur.selectionAsString(true));
 565
 566         // this doesn't make sense, if there is no selection
 567         if (!cur.selection())
 568                 return;
 569
 570         if (cur.inTexted()) {
 571                 LyXText * text = cur.text();
 572                 BOOST_ASSERT(text);
 573                 // ok we have a selection. This is always between cur.selBegin()
 574                 // and sel_end cursor
 575
 576                 // copy behind a space if there is one
 577                 ParagraphList & pars = text->paragraphs();
 578                 pos_type pos = cur.selBegin().pos();
 579                 pit_type par = cur.selBegin().pit();
 580                 while (pos < pars[par].size()
 581                                          && pars[par].isLineSeparator(pos)
 582                                          && (par != cur.selEnd().pit() || pos < cur.selEnd().pos()))
 583                         ++pos;
 584
 585                 copySelectionHelper(pars, par, cur.selEnd().pit(),
 586                         pos, cur.selEnd().pos(), cur.buffer().params().textclass);
 587         }
 588
 589         if (cur.inMathed()) {
 590                 lyxerr << "copySelection in mathed" << endl;
 591                 ParagraphList pars;
 592                 pars.push_back(Paragraph());
 593                 BufferParams const & bp = cur.buffer().params();
 594                 pars.back().layout(bp.getLyXTextClass().defaultLayout());
 595                 for_each(pars.begin(), pars.end(), resetOwnerAndChanges());
 596                 pars.back().insert(0, grabSelection(cur), LyXFont());
 597                 theCuts.push(make_pair(pars, bp.textclass));
 598         }
 599         // tell tabular that a recent copy happened
 600         dirtyTabularStack(false);
 601 }
 602
 603
 604 std::string getSelection(Buffer const & buf, size_t sel_index)
 605 {
 606         return sel_index < theCuts.size()
 607                 ? theCuts[sel_index].first.back().asString(buf, false)
 608                 : string();
 609 }
 610
 611
 612 void pasteParagraphList(LCursor & cur, ParagraphList const & parlist,
 613                         textclass_type textclass)
 614 {
 615         if (cur.inTexted()) {
 616                 LyXText * text = cur.text();
 617                 BOOST_ASSERT(text);
 618
 619                 recordUndo(cur);
 620
 621                 pit_type endpit;
 622                 PitPosPair ppp;
 623                 ErrorList el;
 624
 625                 boost::tie(ppp, endpit) =
 626                         pasteSelectionHelper(cur.buffer(),
 627                                              text->paragraphs(),
 628                                              cur.pit(), cur.pos(),
 629                                              parlist, textclass,
 630                                              el);
 631                 bufferErrors(cur.buffer(), el);
 632                 updateCounters(cur.buffer());
 633                 cur.clearSelection();
 634                 text->setCursor(cur, ppp.first, ppp.second);
 635         }
 636
 637         // mathed is handled in MathNestInset/MathGridInset
 638         BOOST_ASSERT(!cur.inMathed());
 639 }
 640
 641
 642 void pasteSelection(LCursor & cur, size_t sel_index)
 643 {
 644         // this does not make sense, if there is nothing to paste
 645         if (!checkPastePossible(sel_index))
 646                 return;
 647
 648         pasteParagraphList(cur, theCuts[sel_index].first,
 649                            theCuts[sel_index].second);
 650         cur.bv().showErrorList(_("Paste"));
 651         cur.setSelection();
 652 }
 653
 654
 655 void setSelectionRange(LCursor & cur, pos_type length)
 656 {
 657         LyXText * text = cur.text();
 658         BOOST_ASSERT(text);
 659         if (!length)
 660                 return;
 661         cur.resetAnchor();
 662         while (length--)
 663                 text->cursorRight(cur);
 664         cur.setSelection();
 665 }
 666
 667
 668 // simple replacing. The font of the first selected character is used
 669 void replaceSelectionWithString(LCursor & cur, string const & str)
 670 {
 671         LyXText * text = cur.text();
 672         BOOST_ASSERT(text);
 673         recordUndo(cur);
 674
 675         // Get font setting before we cut
 676         pos_type pos = cur.selEnd().pos();
 677         Paragraph & par = text->getPar(cur.selEnd().pit());
 678         LyXFont const font =
 679                 par.getFontSettings(cur.buffer().params(), cur.selBegin().pos());
 680
 681         // Insert the new string
 682         string::const_iterator cit = str.begin();
 683         string::const_iterator end = str.end();
 684         for (; cit != end; ++cit, ++pos)
 685                 par.insertChar(pos, (*cit), font);
 686
 687         // Cut the selection
 688         cutSelection(cur, true, false);
 689 }
 690
 691
 692 void replaceSelection(LCursor & cur)
 693 {
 694         if (cur.selection())
 695                 cutSelection(cur, true, false);
 696 }
 697
 698
 699 // only used by the spellchecker
 700 void replaceWord(LCursor & cur, string const & replacestring)
 701 {
 702         LyXText * text = cur.text();
 703         BOOST_ASSERT(text);
 704
 705         replaceSelectionWithString(cur, replacestring);
 706         setSelectionRange(cur, replacestring.length());
 707
 708         // Go back so that replacement string is also spellchecked
 709         for (string::size_type i = 0; i < replacestring.length() + 1; ++i)
 710                 text->cursorLeft(cur);
 711 }
 712
 713
 714 void eraseSelection(LCursor & cur)
 715 {
 716         //lyxerr << "LCursor::eraseSelection begin: " << cur << endl;
 717         CursorSlice const & i1 = cur.selBegin();
 718         CursorSlice const & i2 = cur.selEnd();
 719         if (i1.inset().asMathInset()) {
 720                 cur.top() = i1;
 721                 if (i1.idx() == i2.idx()) {
 722                         i1.cell().erase(i1.pos(), i2.pos());
 723                         // We may have deleted i1.cell(cur.pos()).
 724                         // Make sure that pos is valid.
 725                         if (cur.pos() > cur.lastpos())
 726                                 cur.pos() = cur.lastpos();
 727                 } else {
 728                         MathInset * p = i1.asMathInset();
 729                         InsetBase::row_type r1, r2;
 730                         InsetBase::col_type c1, c2;
 731                         region(i1, i2, r1, r2, c1, c2);
 732                         for (InsetBase::row_type row = r1; row <= r2; ++row)
 733                                 for (InsetBase::col_type col = c1; col <= c2; ++col)
 734                                         p->cell(p->index(row, col)).clear();
 735                         // We've deleted the whole cell. Only pos 0 is valid.
 736                         cur.pos() = 0;
 737                 }
 738                 // need a valid cursor. (Lgb)
 739                 cur.clearSelection();
 740         } else {
 741                 lyxerr << "can't erase this selection 1" << endl;
 742         }
 743         //lyxerr << "LCursor::eraseSelection end: " << cur << endl;
 744 }
 745
 746
 747 void selDel(LCursor & cur)
 748 {
 749         //lyxerr << "LCursor::selDel" << endl;
 750         if (cur.selection())
 751                 eraseSelection(cur);
 752 }
 753
 754
 755 void selClearOrDel(LCursor & cur)
 756 {
 757         //lyxerr << "LCursor::selClearOrDel" << endl;
 758         if (lyxrc.auto_region_delete)
 759                 selDel(cur);
 760         else
 761                 cur.selection() = false;
 762 }
 763
 764
 765 string grabSelection(LCursor const & cur)
 766 {
 767         if (!cur.selection())
 768                 return string();
 769
 770         // FIXME: What is wrong with the following?
 771 #if 0
 772         std::ostringstream os;
 773         for (DocIterator dit = cur.selectionBegin();
 774              dit != cur.selectionEnd(); dit.forwardPos())
 775                 os << asString(dit.cell());
 776         return os.str();
 777 #endif
 778
 779         CursorSlice i1 = cur.selBegin();
 780         CursorSlice i2 = cur.selEnd();
 781
 782         if (i1.idx() == i2.idx()) {
 783                 if (i1.inset().asMathInset()) {
 784                         MathArray::const_iterator it = i1.cell().begin();
 785                         return asString(MathArray(it + i1.pos(), it + i2.pos()));
 786                 } else {
 787                         return "unknown selection 1";
 788                 }
 789         }
 790
 791         InsetBase::row_type r1, r2;
 792         InsetBase::col_type c1, c2;
 793         region(i1, i2, r1, r2, c1, c2);
 794
 795         string data;
 796         if (i1.inset().asMathInset()) {
 797                 for (InsetBase::row_type row = r1; row <= r2; ++row) {
 798                         if (row > r1)
 799                                 data += "\\\\";
 800                         for (InsetBase::col_type col = c1; col <= c2; ++col) {
 801                                 if (col > c1)
 802                                         data += '&';
 803                                 data += asString(i1.asMathInset()->
 804                                         cell(i1.asMathInset()->index(row, col)));
 805                         }
 806                 }
 807         } else {
 808                 data = "unknown selection 2";
 809         }
 810         return data;
 811 }
 812
 813
 814 void dirtyTabularStack(bool b)
 815 {
 816         dirty_tabular_stack_ = b;
 817 }
 818
 819
 820 bool tabularStackDirty()
 821 {
 822         return dirty_tabular_stack_;
 823 }
 824
 825
 826 } // namespace cap
 827 } // namespace lyx