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