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