src/BufferView.C

   1 /**
   2  * \file BufferView.C
   3  * Copyright 1995-2002 the LyX Team
   4  * Read the file COPYING
   5  *
   6  * \author unknown
   7  * \author John Levon <moz@compsoc.man.ac.uk>
   8  */
   9
  10 #include <config.h>
  11
  12 #include "BufferView.h"
  13 #include "BufferView_pimpl.h"
  14
  15 #include "BufferView_pimpl.h"
  16 #include "LaTeX.h"
  17 #include "WordLangTuple.h"
  18 #include "buffer.h"
  19 #include "bufferlist.h"
  20 #include "debug.h"
  21 #include "gettext.h"
  22 #include "iterators.h"
  23 #include "language.h"
  24 #include "lyxcursor.h"
  25 #include "lyxlex.h"
  26 #include "lyxtext.h"
  27 #include "undo_funcs.h"
  28 #include "changes.h"
  29
  30 #include "frontends/Alert.h"
  31 #include "frontends/Dialogs.h"
  32 #include "frontends/LyXView.h"
  33 #include "frontends/WorkArea.h"
  34 #include "frontends/screen.h"
  35
  36 #include "insets/insetcommand.h" // ChangeRefs
  37 #include "insets/inseterror.h"
  38
  39 #include "support/FileInfo.h"
  40 #include "support/filetools.h"
  41 #include "support/lyxfunctional.h" // equal_1st_in_pair
  42 #include "support/types.h"
  43 #include "support/lyxalgo.h" // lyx_count
  44
  45 #include <fstream>
  46
  47 extern BufferList bufferlist;
  48
  49 using lyx::pos_type;
  50
  51 using std::pair;
  52 using std::endl;
  53 using std::ifstream;
  54 using std::vector;
  55 using std::find;
  56 using std::count_if;
  57
  58
  59 BufferView::BufferView(LyXView * owner, int xpos, int ypos,
  60                        int width, int height)
  61         : pimpl_(new Pimpl(this, owner, xpos, ypos, width, height))
  62 {
  63         text = 0;
  64 }
  65
  66
  67 BufferView::~BufferView()
  68 {
  69         delete text;
  70         delete pimpl_;
  71 }
  72
  73
  74 Buffer * BufferView::buffer() const
  75 {
  76         return pimpl_->buffer_;
  77 }
  78
  79
  80 LyXScreen & BufferView::screen() const
  81 {
  82         return pimpl_->screen();
  83 }
  84
  85
  86 LyXView * BufferView::owner() const
  87 {
  88         return pimpl_->owner_;
  89 }
  90
  91
  92 Painter & BufferView::painter() const
  93 {
  94         return pimpl_->painter();
  95 }
  96
  97
  98 void BufferView::buffer(Buffer * b)
  99 {
 100         pimpl_->buffer(b);
 101 }
 102
 103
 104 void BufferView::resize()
 105 {
 106         if (pimpl_->buffer_) {
 107                 pimpl_->resizeCurrentBuffer();
 108         }
 109 }
 110
 111
 112 void BufferView::repaint()
 113 {
 114         pimpl_->repaint();
 115 }
 116
 117
 118 bool BufferView::fitCursor()
 119 {
 120         return pimpl_->fitCursor();
 121 }
 122
 123
 124 void BufferView::update()
 125 {
 126         pimpl_->update();
 127 }
 128
 129
 130 void BufferView::updateScrollbar()
 131 {
 132         pimpl_->updateScrollbar();
 133 }
 134
 135
 136 void BufferView::scrollDocView(int value)
 137 {
 138         pimpl_->scrollDocView(value);
 139 }
 140
 141
 142 void BufferView::redoCurrentBuffer()
 143 {
 144         pimpl_->redoCurrentBuffer();
 145 }
 146
 147
 148 bool BufferView::available() const
 149 {
 150         return pimpl_->available();
 151 }
 152
 153
 154 Change const BufferView::getCurrentChange()
 155 {
 156         return pimpl_->getCurrentChange();
 157 }
 158
 159
 160 void BufferView::beforeChange(LyXText * text)
 161 {
 162         pimpl_->beforeChange(text);
 163 }
 164
 165
 166 void BufferView::savePosition(unsigned int i)
 167 {
 168         pimpl_->savePosition(i);
 169 }
 170
 171
 172 void BufferView::restorePosition(unsigned int i)
 173 {
 174         pimpl_->restorePosition(i);
 175 }
 176
 177
 178 bool BufferView::isSavedPosition(unsigned int i)
 179 {
 180         return pimpl_->isSavedPosition(i);
 181 }
 182
 183
 184 void BufferView::update(LyXText * text, UpdateCodes f)
 185 {
 186         pimpl_->update(text, f);
 187 }
 188
 189
 190 void BufferView::switchKeyMap()
 191 {
 192         pimpl_->switchKeyMap();
 193 }
 194
 195
 196 void BufferView::insetUnlock()
 197 {
 198         pimpl_->insetUnlock();
 199 }
 200
 201
 202 int BufferView::workWidth() const
 203 {
 204         return pimpl_->workarea().workWidth();
 205 }
 206
 207
 208 void BufferView::showCursor()
 209 {
 210         pimpl_->showCursor();
 211 }
 212
 213
 214 void BufferView::hideCursor()
 215 {
 216         pimpl_->hideCursor();
 217 }
 218
 219
 220 void BufferView::toggleSelection(bool b)
 221 {
 222         pimpl_->toggleSelection(b);
 223 }
 224
 225
 226 void BufferView::toggleToggle()
 227 {
 228         pimpl_->toggleToggle();
 229 }
 230
 231
 232 void BufferView::center()
 233 {
 234         pimpl_->center();
 235 }
 236
 237
 238 string const BufferView::getClipboard() const
 239 {
 240         return pimpl_->workarea().getClipboard();
 241 }
 242
 243
 244 void BufferView::stuffClipboard(string const & stuff) const
 245 {
 246         pimpl_->stuffClipboard(stuff);
 247 }
 248
 249
 250 BufferView::UpdateCodes operator|(BufferView::UpdateCodes uc1,
 251                                   BufferView::UpdateCodes uc2)
 252 {
 253         return static_cast<BufferView::UpdateCodes>
 254                 (static_cast<int>(uc1) | static_cast<int>(uc2));
 255 }
 256
 257
 258 bool BufferView::dispatch(FuncRequest const & ev)
 259 {
 260         return pimpl_->dispatch(ev);
 261 }
 262
 263
 264 void BufferView::scroll(int lines)
 265 {
 266         pimpl_->scroll(lines);
 267 }
 268
 269
 270 int BufferView::defaultHeight() const
 271 {
 272         return text->defaultHeight();
 273 }
 274
 275
 276
 277 // Inserts a file into current document
 278 bool BufferView::insertLyXFile(string const & filen)
 279         //
 280         // Copyright CHT Software Service GmbH
 281         // Uwe C. Schroeder
 282         //
 283         // Insert a LyXformat - file into current buffer
 284         //
 285         // Moved from lyx_cb.C (Lgb)
 286 {
 287         if (filen.empty())
 288                 return false;
 289
 290         string const fname = MakeAbsPath(filen);
 291
 292         // check if file exist
 293         FileInfo const fi(fname);
 294
 295         if (!fi.readable()) {
 296                 Alert::alert(_("Error!"),
 297                            _("Specified file is unreadable: "),
 298                            MakeDisplayPath(fname, 50));
 299                 return false;
 300         }
 301
 302         beforeChange(text);
 303
 304         ifstream ifs(fname.c_str());
 305         if (!ifs) {
 306                 Alert::err_alert(_("Error! Cannot open specified file:"),
 307                            MakeDisplayPath(fname, 50));
 308                 return false;
 309         }
 310
 311         int const c = ifs.peek();
 312
 313         LyXLex lex(0, 0);
 314         lex.setStream(ifs);
 315
 316         bool res = true;
 317
 318         if (c == '#') {
 319                 lyxerr[Debug::INFO] << "Will insert file with header" << endl;
 320                 res = buffer()->readFile(lex, fname, text->cursor.par());
 321         } else {
 322                 lyxerr[Debug::INFO] << "Will insert file without header"
 323                                     << endl;
 324                 res = buffer()->readLyXformat2(lex, text->cursor.par());
 325         }
 326
 327         resize();
 328         return res;
 329 }
 330
 331
 332 bool BufferView::removeAutoInsets()
 333 {
 334         // keep track of which pos and par the cursor was on
 335         Paragraph * cursor_par = text->cursor.par();
 336         Paragraph * cursor_par_prev = cursor_par ? cursor_par->previous() : 0;
 337         Paragraph * cursor_par_next = cursor_par ? cursor_par->next() : 0;
 338         pos_type cursor_pos = text->cursor.pos();
 339
 340         bool found = false;
 341
 342         // Trap the deletion of the paragraph the cursor is in.
 343         // Iterate until we find a paragraph that won't be immediately deleted.
 344         // In reality this should mean we only execute the body of the while
 345         // loop once at most.  However for safety we iterate rather than just
 346         // make this an if () conditional.
 347         while ((cursor_par_prev || cursor_par_next)
 348                && text->setCursor(this,
 349                                   cursor_par_prev ? cursor_par_prev : cursor_par_next,
 350                                   0)) {
 351                 // We just removed cursor_par so have to fix the "cursor"
 352                 if (cursor_par_prev) {
 353                         // '.' = cursor_par
 354                         //  a -> a.
 355                         // .
 356                         cursor_par = cursor_par_prev;
 357                         cursor_pos = cursor_par->size();
 358                 } else {
 359                         // .  -> .a
 360                         //  a
 361                         cursor_par = cursor_par_next;
 362                         cursor_pos = 0;
 363                 }
 364                 cursor_par_prev = cursor_par->previous();
 365                 cursor_par_next = cursor_par->next();
 366         }
 367
 368         // Iterate through the paragraphs removing autoDelete insets as we go.
 369         // If the paragraph ends up empty after all the autoDelete insets are
 370         // removed that paragraph will be removed by the next setCursor() call.
 371         ParIterator it = buffer()->par_iterator_begin();
 372         ParIterator end = buffer()->par_iterator_end();
 373         for (; it != end; ++it) {
 374                 Paragraph * par = *it;
 375                 Paragraph * par_prev = par ? par->previous() : 0;
 376                 bool removed = false;
 377
 378                 if (text->setCursor(this, par, 0)
 379                     && cursor_par == par_prev) {
 380                         // The previous setCursor line was deleted and that
 381                         // was the cursor_par line.  This can only happen if an
 382                         // error box was the sole item on cursor_par.
 383                         // It is possible for cursor_par_prev to be stray if
 384                         // the line it pointed to only had a error box on it
 385                         // so we have to set it to a known correct value.
 386                         // This is often the same value it already had.
 387                         cursor_par_prev = par->previous();
 388                         if (cursor_par_prev) {
 389                                 // '|' = par, '.' = cursor_par, 'E' = error box
 390                                 // First step below may occur before while{}
 391                                 //  a    |a      a     a     a.
 392                                 //  E -> .E -> |.E -> .  -> |b
 393                                 // .      b      b    |b
 394                                 //  b
 395                                 cursor_par = cursor_par_prev;
 396                                 cursor_pos = cursor_par_prev->size();
 397                                 cursor_par_prev = cursor_par->previous();
 398                                 // cursor_par_next remains the same
 399                         } else if (cursor_par_next) {
 400                                 // First step below may occur before while{}
 401                                 // .
 402                                 //  E -> |.E -> |.  -> . -> .|a
 403                                 //  a      a      a    |a
 404                                 cursor_par = cursor_par_next;
 405                                 cursor_pos = 0;
 406                                 // cursor_par_prev remains unset
 407                                 cursor_par_next = cursor_par->next();
 408                         } else {
 409                                 // I can't find a way to trigger this
 410                                 // so it should be unreachable code
 411                                 // unless the buffer is corrupted.
 412                                 lyxerr << "BufferView::removeAutoInsets() is bad\n";
 413                         }
 414                 }
 415
 416                 InsetList::iterator pit = par->insetlist.begin();
 417                 InsetList::iterator pend = par->insetlist.end();
 418
 419                 while (pit != pend) {
 420                         if (pit.getInset()->autoDelete()) {
 421                                 removed = true;
 422                                 pos_type const pos = pit.getPos();
 423
 424                                 par->erase(pos);
 425                                 // We just invalidated par's inset iterators so
 426                                 // we get the next valid iterator position
 427                                 pit = par->insetlist.insetIterator(pos);
 428                                 // and ensure we have a valid end iterator.
 429                                 pend = par->insetlist.end();
 430
 431                                 if (cursor_par == par) {
 432                                         // update the saved cursor position
 433                                         if (cursor_pos > pos)
 434                                                 --cursor_pos;
 435                                 }
 436                         } else {
 437                                 ++pit;
 438                         }
 439                 }
 440                 if (removed) {
 441                         found = true;
 442                         text->redoParagraph(this);
 443                 }
 444         }
 445
 446         // It is possible that the last line is empty if it was cursor_par
 447         // and/or only had an error inset on it.  So we set the cursor to the
 448         // start of the doc to force its removal and ensure a valid saved cursor
 449         if (text->setCursor(this, text->ownerParagraph(), 0)
 450             && 0 == cursor_par_next) {
 451                 cursor_par = cursor_par_prev;
 452                 cursor_pos = cursor_par->size();
 453         } else if (cursor_pos > cursor_par->size()) {
 454                 // Some C-Enter lines were removed by the setCursor call which
 455                 // then invalidated cursor_pos. It could still be "wrong" because
 456                 // the cursor may appear to have jumped but since we collapsed
 457                 // some C-Enter lines this should be a reasonable compromise.
 458                 cursor_pos = cursor_par->size();
 459         }
 460
 461         // restore the original cursor in its corrected location.
 462         text->setCursorIntern(this, cursor_par, cursor_pos);
 463
 464         return found;
 465 }
 466
 467
 468 void BufferView::insertErrors(TeXErrors & terr)
 469 {
 470         // Save the cursor position
 471         LyXCursor cursor = text->cursor;
 472
 473         TeXErrors::Errors::const_iterator cit = terr.begin();
 474         TeXErrors::Errors::const_iterator end = terr.end();
 475         for (; cit != end; ++cit) {
 476                 string const desctext(cit->error_desc);
 477                 string const errortext(cit->error_text);
 478                 string const msgtxt = desctext + '\n' + errortext;
 479                 int const errorrow = cit->error_in_line;
 480
 481                 // Insert error string for row number
 482                 int tmpid = -1;
 483                 int tmppos = -1;
 484
 485                 if (buffer()->texrow.getIdFromRow(errorrow, tmpid, tmppos)) {
 486                         buffer()->texrow.increasePos(tmpid, tmppos);
 487                 }
 488
 489                 Paragraph * texrowpar = 0;
 490
 491                 if (tmpid == -1) {
 492                         texrowpar = text->ownerParagraph();
 493                         tmppos = 0;
 494                 } else {
 495                         texrowpar = buffer()->getParFromID(tmpid);
 496                 }
 497
 498                 if (texrowpar == 0)
 499                         continue;
 500
 501                 freezeUndo();
 502                 InsetError * new_inset = new InsetError(msgtxt);
 503                 text->setCursorIntern(this, texrowpar, tmppos);
 504                 text->insertInset(this, new_inset);
 505                 text->fullRebreak(this);
 506                 unFreezeUndo();
 507         }
 508         // Restore the cursor position
 509         text->setCursorIntern(this, cursor.par(), cursor.pos());
 510 }
 511
 512
 513 void BufferView::setCursorFromRow(int row)
 514 {
 515         int tmpid = -1;
 516         int tmppos = -1;
 517
 518         buffer()->texrow.getIdFromRow(row, tmpid, tmppos);
 519
 520         Paragraph * texrowpar;
 521
 522         if (tmpid == -1) {
 523                 texrowpar = text->ownerParagraph();
 524                 tmppos = 0;
 525         } else {
 526                 texrowpar = buffer()->getParFromID(tmpid);
 527         }
 528         text->setCursor(this, texrowpar, tmppos);
 529 }
 530
 531
 532 bool BufferView::insertInset(Inset * inset, string const & lout)
 533 {
 534         return pimpl_->insertInset(inset, lout);
 535 }
 536
 537
 538 // This is also a buffer property (ale)
 539 // Not so sure about that. a goto Label function can not be buffer local, just
 540 // think how this will work in a multiwindow/buffer environment, all the
 541 // cursors in all the views showing this buffer will move. (Lgb)
 542 // OK, then no cursor action should be allowed in buffer. (ale)
 543 bool BufferView::gotoLabel(string const & label)
 544 {
 545         for (Buffer::inset_iterator it = buffer()->inset_iterator_begin();
 546              it != buffer()->inset_iterator_end(); ++it) {
 547                 vector<string> labels = it->getLabelList();
 548                 if (find(labels.begin(),labels.end(),label)
 549                      != labels.end()) {
 550                         beforeChange(text);
 551                         text->setCursor(this, it.getPar(), it.getPos());
 552                         text->selection.cursor = text->cursor;
 553                         update(text, BufferView::SELECT|BufferView::FITCUR);
 554                         return true;
 555                 }
 556         }
 557         return false;
 558 }
 559
 560
 561 void BufferView::undo()
 562 {
 563         if (!available())
 564                 return;
 565
 566         owner()->message(_("Undo"));
 567         hideCursor();
 568         beforeChange(text);
 569         update(text, BufferView::SELECT|BufferView::FITCUR);
 570         if (!textUndo(this))
 571                 owner()->message(_("No further undo information"));
 572         else
 573                 update(text, BufferView::SELECT|BufferView::FITCUR|BufferView::CHANGE);
 574         switchKeyMap();
 575 }
 576
 577
 578 void BufferView::redo()
 579 {
 580         if (!available())
 581                 return;
 582
 583         owner()->message(_("Redo"));
 584         hideCursor();
 585         beforeChange(text);
 586         update(text, BufferView::SELECT|BufferView::FITCUR);
 587         if (!textRedo(this))
 588                 owner()->message(_("No further redo information"));
 589         else
 590                 update(text, BufferView::SELECT|BufferView::FITCUR|BufferView::CHANGE);
 591         switchKeyMap();
 592 }
 593
 594
 595 void BufferView::copyEnvironment()
 596 {
 597         if (available()) {
 598                 text->copyEnvironmentType();
 599                 owner()->message(_("Paragraph environment type copied"));
 600         }
 601 }
 602
 603
 604 void BufferView::pasteEnvironment()
 605 {
 606         if (available()) {
 607                 text->pasteEnvironmentType(this);
 608                 owner()->message(_("Paragraph environment type set"));
 609                 update(text, BufferView::SELECT|BufferView::FITCUR|BufferView::CHANGE);
 610         }
 611 }
 612
 613
 614 // these functions are for the spellchecker
 615 WordLangTuple const BufferView::nextWord(float & value)
 616 {
 617         if (!available()) {
 618                 value = 1;
 619                 return WordLangTuple();
 620         }
 621
 622         return text->selectNextWordToSpellcheck(this, value);
 623 }
 624
 625
 626 void BufferView::selectLastWord()
 627 {
 628         if (!available())
 629                 return;
 630
 631         LyXCursor cur = text->selection.cursor;
 632         hideCursor();
 633         beforeChange(text);
 634         text->selection.cursor = cur;
 635         text->selectSelectedWord(this);
 636         toggleSelection(false);
 637         update(text, BufferView::SELECT|BufferView::FITCUR);
 638 }
 639
 640
 641 void BufferView::endOfSpellCheck()
 642 {
 643         if (!available()) return;
 644
 645         hideCursor();
 646         beforeChange(text);
 647         text->selectSelectedWord(this);
 648         text->clearSelection();
 649         update(text, BufferView::SELECT|BufferView::FITCUR);
 650 }
 651
 652
 653 void BufferView::replaceWord(string const & replacestring)
 654 {
 655         if (!available())
 656                 return;
 657
 658         LyXText * tt = getLyXText();
 659         hideCursor();
 660         update(tt, BufferView::SELECT|BufferView::FITCUR);
 661
 662         // clear the selection (if there is any)
 663         toggleSelection(false);
 664         update(tt, BufferView::SELECT|BufferView::FITCUR);
 665
 666         // clear the selection (if there is any)
 667         toggleSelection(false);
 668         tt->replaceSelectionWithString(this, replacestring);
 669
 670         tt->setSelectionRange(this, replacestring.length());
 671
 672         // Go back so that replacement string is also spellchecked
 673         for (string::size_type i = 0; i < replacestring.length() + 1; ++i) {
 674                 tt->cursorLeft(this);
 675         }
 676         update(tt, BufferView::SELECT|BufferView::FITCUR|BufferView::CHANGE);
 677 }
 678 // End of spellchecker stuff
 679
 680
 681 bool BufferView::lockInset(UpdatableInset * inset)
 682 {
 683         if (!inset)
 684                 return false;
 685         // don't relock if we're already locked
 686         if (theLockingInset() == inset)
 687                 return true;
 688         if (!theLockingInset()) {
 689                 // first check if it's the inset under the cursor we want lock
 690                 // should be most of the time
 691                 char const c = text->cursor.par()->getChar(text->cursor.pos());
 692                 if (c == Paragraph::META_INSET) {
 693                         Inset * in = text->cursor.par()->getInset(text->cursor.pos());
 694                         if (inset == in) {
 695                                 theLockingInset(inset);
 696                                 return true;
 697                         }
 698                 }
 699                 // Then do a deep look of the inset and lock the right one
 700                 int const id = inset->id();
 701                 ParagraphList::iterator pit = buffer()->paragraphs.begin();
 702                 ParagraphList::iterator pend = buffer()->paragraphs.end();
 703                 for (; pit != pend; ++pit) {
 704                         InsetList::iterator it = pit->insetlist.begin();
 705                         InsetList::iterator end = pit->insetlist.end();
 706                         for (; it != end; ++it) {
 707                                 if (it.getInset() == inset) {
 708                                         text->setCursorIntern(this, &*pit, it.getPos());
 709                                         theLockingInset(inset);
 710                                         return true;
 711                                 }
 712                                 if (it.getInset()->getInsetFromID(id)) {
 713                                         text->setCursorIntern(this, &*pit, it.getPos());
 714                                         it.getInset()->edit(this);
 715                                         return theLockingInset()->lockInsetInInset(this, inset);
 716                                 }
 717                         }
 718                 }
 719                 return false;
 720         }
 721         return theLockingInset()->lockInsetInInset(this, inset);
 722 }
 723
 724
 725 void BufferView::showLockedInsetCursor(int x, int y, int asc, int desc)
 726 {
 727         if (available() && theLockingInset() && !theLockingInset()->nodraw()) {
 728                 LyXCursor cursor = text->cursor;
 729                 Inset * locking_inset = theLockingInset()->getLockingInset();
 730
 731                 if ((cursor.pos() - 1 >= 0) &&
 732                     cursor.par()->isInset(cursor.pos() - 1) &&
 733                     (cursor.par()->getInset(cursor.pos() - 1) ==
 734                      locking_inset))
 735                         text->setCursor(this, cursor,
 736                                         cursor.par(), cursor.pos() - 1);
 737                 LyXScreen::Cursor_Shape shape = LyXScreen::BAR_SHAPE;
 738                 LyXText * txt = getLyXText();
 739                 if (locking_inset->isTextInset() &&
 740                     locking_inset->lyxCode() != Inset::ERT_CODE &&
 741                     (txt->real_current_font.language() !=
 742                      buffer()->params.language
 743                      || txt->real_current_font.isVisibleRightToLeft()
 744                      != buffer()->params.language->RightToLeft()))
 745                         shape = (txt->real_current_font.isVisibleRightToLeft())
 746                                 ? LyXScreen::REVERSED_L_SHAPE
 747                                 : LyXScreen::L_SHAPE;
 748                 y += cursor.iy() + theLockingInset()->insetInInsetY();
 749                 screen().showManualCursor(text, x, y, asc, desc,
 750                                                   shape);
 751         }
 752 }
 753
 754
 755 void BufferView::hideLockedInsetCursor()
 756 {
 757         if (theLockingInset() && available()) {
 758                 screen().hideCursor();
 759         }
 760 }
 761
 762
 763 bool BufferView::fitLockedInsetCursor(int x, int y, int asc, int desc)
 764 {
 765         if (theLockingInset() && available()) {
 766                 y += text->cursor.iy() + theLockingInset()->insetInInsetY();
 767                 if (screen().fitManualCursor(this, text, x, y, asc, desc)) {
 768                         updateScrollbar();
 769                         return true;
 770                 }
 771         }
 772         return false;
 773 }
 774
 775
 776 int BufferView::unlockInset(UpdatableInset * inset)
 777 {
 778         if (!inset)
 779                 return 0;
 780         if (inset && theLockingInset() == inset) {
 781                 inset->insetUnlock(this);
 782                 theLockingInset(0);
 783                 // make sure we update the combo !
 784                 owner()->setLayout(getLyXText()->cursor.par()->layout()->name());
 785                 // Tell the paragraph dialog that we changed paragraph
 786                 owner()->getDialogs().updateParagraph();
 787                 finishUndo();
 788                 return 0;
 789         } else if (inset && theLockingInset() &&
 790                    theLockingInset()->unlockInsetInInset(this, inset)) {
 791                 // Tell the paragraph dialog that we changed paragraph
 792                 owner()->getDialogs().updateParagraph();
 793                 // owner inset has updated the layout combo
 794                 finishUndo();
 795                 return 0;
 796         }
 797         return bufferlist.unlockInset(inset);
 798 }
 799
 800
 801 void BufferView::lockedInsetStoreUndo(Undo::undo_kind kind)
 802 {
 803         if (!theLockingInset())
 804                 return; // shouldn't happen
 805         if (kind == Undo::EDIT) // in this case insets would not be stored!
 806                 kind = Undo::FINISH;
 807         setUndo(this, kind,
 808                 text->cursor.par(),
 809                 text->cursor.par()->next());
 810 }
 811
 812
 813 void BufferView::updateInset(Inset * inset, bool mark_dirty)
 814 {
 815         pimpl_->updateInset(inset, mark_dirty);
 816 }
 817
 818
 819 bool BufferView::ChangeInsets(Inset::Code code,
 820                               string const & from, string const & to)
 821 {
 822         bool need_update = false;
 823         LyXCursor cursor = text->cursor;
 824         LyXCursor tmpcursor = cursor;
 825         cursor.par(tmpcursor.par());
 826         cursor.pos(tmpcursor.pos());
 827
 828         ParIterator end = buffer()->par_iterator_end();
 829         for (ParIterator it = buffer()->par_iterator_begin();
 830              it != end; ++it) {
 831                 Paragraph * par = *it;
 832                 bool changed_inset = false;
 833                 for (InsetList::iterator it2 = par->insetlist.begin();
 834                      it2 != par->insetlist.end(); ++it2) {
 835                         if (it2.getInset()->lyxCode() == code) {
 836                                 InsetCommand * inset = static_cast<InsetCommand *>(it2.getInset());
 837                                 if (inset->getContents() == from) {
 838                                         inset->setContents(to);
 839                                         changed_inset = true;
 840                                 }
 841                         }
 842                 }
 843                 if (changed_inset) {
 844                         need_update = true;
 845
 846                         // FIXME
 847
 848                         // The test it.size()==1 was needed to prevent crashes.
 849                         // How to set the cursor corretly when it.size()>1 ??
 850                         if (it.size() == 1) {
 851                                 text->setCursorIntern(this, par, 0);
 852                                 text->redoParagraphs(this, text->cursor,
 853                                                      text->cursor.par()->next());
 854                                 text->fullRebreak(this);
 855                         }
 856                 }
 857         }
 858         text->setCursorIntern(this, cursor.par(), cursor.pos());
 859         return need_update;
 860 }
 861
 862
 863 bool BufferView::ChangeRefsIfUnique(string const & from, string const & to)
 864 {
 865         // Check if the label 'from' appears more than once
 866         vector<string> labels = buffer()->getLabelList();
 867
 868         if (lyx::count(labels.begin(), labels.end(), from) > 1)
 869                 return false;
 870
 871         return ChangeInsets(Inset::REF_CODE, from, to);
 872 }
 873
 874
 875 bool BufferView::ChangeCitationsIfUnique(string const & from,
 876                                          string const & to)
 877 {
 878         typedef pair<string, string> StringPair;
 879
 880         vector<StringPair> keys = buffer()->getBibkeyList();
 881         if (count_if(keys.begin(), keys.end(),
 882                      lyx::equal_1st_in_pair<StringPair>(from))
 883             > 1)
 884                 return false;
 885
 886         return ChangeInsets(Inset::CITE_CODE, from, to);
 887 }
 888
 889
 890 UpdatableInset * BufferView::theLockingInset() const
 891 {
 892         // If NULL is not allowed we should put an Assert here. (Lgb)
 893         if (text)
 894                 return text->the_locking_inset;
 895         return 0;
 896 }
 897
 898
 899 void BufferView::theLockingInset(UpdatableInset * inset)
 900 {
 901         text->the_locking_inset = inset;
 902 }
 903
 904
 905 LyXText * BufferView::getLyXText() const
 906 {
 907         if (theLockingInset()) {
 908                 LyXText * txt = theLockingInset()->getLyXText(this, true);
 909                 if (txt)
 910                         return txt;
 911         }
 912         return text;
 913 }
 914
 915
 916 LyXText * BufferView::getParentText(Inset * inset) const
 917 {
 918         if (inset->owner()) {
 919                 LyXText * txt = inset->getLyXText(this);
 920                 inset = inset->owner();
 921                 while (inset && inset->getLyXText(this) == txt)
 922                         inset = inset->owner();
 923                 if (inset)
 924                         return inset->getLyXText(this);
 925         }
 926         return text;
 927 }
 928
 929
 930 Language const * BufferView::getParentLanguage(Inset * inset) const
 931 {
 932         LyXText * text = getParentText(inset);
 933         return text->cursor.par()->getFontSettings(buffer()->params,
 934                                                    text->cursor.pos()).language();
 935 }
 936
 937
 938 Encoding const * BufferView::getEncoding() const
 939 {
 940         LyXText * t = getLyXText();
 941         if (!t)
 942                 return 0;
 943
 944         LyXCursor const & c= t->cursor;
 945         LyXFont const font = c.par()->getFont(buffer()->params, c.pos());
 946         return font.language()->encoding();
 947 }
 948
 949
 950 void BufferView::haveSelection(bool sel)
 951 {
 952         pimpl_->workarea().haveSelection(sel);
 953 }
 954
 955
 956 int BufferView::workHeight() const
 957 {
 958         return pimpl_->workarea().workHeight();
 959 }