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 // Inserts a file into current document
 271 bool BufferView::insertLyXFile(string const & filen)
 272         //
 273         // Copyright CHT Software Service GmbH
 274         // Uwe C. Schroeder
 275         //
 276         // Insert a LyXformat - file into current buffer
 277         //
 278         // Moved from lyx_cb.C (Lgb)
 279 {
 280         if (filen.empty())
 281                 return false;
 282
 283         string const fname = MakeAbsPath(filen);
 284
 285         // check if file exist
 286         FileInfo const fi(fname);
 287
 288         if (!fi.readable()) {
 289                 Alert::alert(_("Error!"),
 290                            _("Specified file is unreadable: "),
 291                            MakeDisplayPath(fname, 50));
 292                 return false;
 293         }
 294
 295         beforeChange(text);
 296
 297         ifstream ifs(fname.c_str());
 298         if (!ifs) {
 299                 Alert::err_alert(_("Error! Cannot open specified file:"),
 300                            MakeDisplayPath(fname, 50));
 301                 return false;
 302         }
 303
 304         int const c = ifs.peek();
 305
 306         LyXLex lex(0, 0);
 307         lex.setStream(ifs);
 308
 309         bool res = true;
 310
 311         if (c == '#') {
 312                 lyxerr[Debug::INFO] << "Will insert file with header" << endl;
 313                 res = buffer()->readFile(lex, fname, text->cursor.par());
 314         } else {
 315                 lyxerr[Debug::INFO] << "Will insert file without header"
 316                                     << endl;
 317                 res = buffer()->readLyXformat2(lex, text->cursor.par());
 318         }
 319
 320         resize();
 321         return res;
 322 }
 323
 324
 325 bool BufferView::removeAutoInsets()
 326 {
 327         // keep track of which pos and par the cursor was on
 328         Paragraph * cursor_par = text->cursor.par();
 329         Paragraph * cursor_par_prev = cursor_par ? cursor_par->previous() : 0;
 330         Paragraph * cursor_par_next = cursor_par ? cursor_par->next() : 0;
 331         pos_type cursor_pos = text->cursor.pos();
 332
 333         bool found = false;
 334
 335         // Trap the deletion of the paragraph the cursor is in.
 336         // Iterate until we find a paragraph that won't be immediately deleted.
 337         // In reality this should mean we only execute the body of the while
 338         // loop once at most.  However for safety we iterate rather than just
 339         // make this an if () conditional.
 340         while ((cursor_par_prev || cursor_par_next)
 341                && text->setCursor(this,
 342                                   cursor_par_prev ? cursor_par_prev : cursor_par_next,
 343                                   0)) {
 344                 // We just removed cursor_par so have to fix the "cursor"
 345                 if (cursor_par_prev) {
 346                         // '.' = cursor_par
 347                         //  a -> a.
 348                         // .
 349                         cursor_par = cursor_par_prev;
 350                         cursor_pos = cursor_par->size();
 351                 } else {
 352                         // .  -> .a
 353                         //  a
 354                         cursor_par = cursor_par_next;
 355                         cursor_pos = 0;
 356                 }
 357                 cursor_par_prev = cursor_par->previous();
 358                 cursor_par_next = cursor_par->next();
 359         }
 360
 361         // Iterate through the paragraphs removing autoDelete insets as we go.
 362         // If the paragraph ends up empty after all the autoDelete insets are
 363         // removed that paragraph will be removed by the next setCursor() call.
 364         ParIterator it = buffer()->par_iterator_begin();
 365         ParIterator end = buffer()->par_iterator_end();
 366         for (; it != end; ++it) {
 367                 Paragraph * par = *it;
 368                 Paragraph * par_prev = par ? par->previous() : 0;
 369                 bool removed = false;
 370
 371                 if (text->setCursor(this, par, 0)
 372                     && cursor_par == par_prev) {
 373                         // The previous setCursor line was deleted and that
 374                         // was the cursor_par line.  This can only happen if an
 375                         // error box was the sole item on cursor_par.
 376                         // It is possible for cursor_par_prev to be stray if
 377                         // the line it pointed to only had a error box on it
 378                         // so we have to set it to a known correct value.
 379                         // This is often the same value it already had.
 380                         cursor_par_prev = par->previous();
 381                         if (cursor_par_prev) {
 382                                 // '|' = par, '.' = cursor_par, 'E' = error box
 383                                 // First step below may occur before while{}
 384                                 //  a    |a      a     a     a.
 385                                 //  E -> .E -> |.E -> .  -> |b
 386                                 // .      b      b    |b
 387                                 //  b
 388                                 cursor_par = cursor_par_prev;
 389                                 cursor_pos = cursor_par_prev->size();
 390                                 cursor_par_prev = cursor_par->previous();
 391                                 // cursor_par_next remains the same
 392                         } else if (cursor_par_next) {
 393                                 // First step below may occur before while{}
 394                                 // .
 395                                 //  E -> |.E -> |.  -> . -> .|a
 396                                 //  a      a      a    |a
 397                                 cursor_par = cursor_par_next;
 398                                 cursor_pos = 0;
 399                                 // cursor_par_prev remains unset
 400                                 cursor_par_next = cursor_par->next();
 401                         } else {
 402                                 // I can't find a way to trigger this
 403                                 // so it should be unreachable code
 404                                 // unless the buffer is corrupted.
 405                                 lyxerr << "BufferView::removeAutoInsets() is bad\n";
 406                         }
 407                 }
 408
 409                 InsetList::iterator pit = par->insetlist.begin();
 410                 InsetList::iterator pend = par->insetlist.end();
 411
 412                 while (pit != pend) {
 413                         if (pit.getInset()->autoDelete()) {
 414                                 removed = true;
 415                                 pos_type const pos = pit.getPos();
 416
 417                                 par->erase(pos);
 418                                 // We just invalidated par's inset iterators so
 419                                 // we get the next valid iterator position
 420                                 pit = par->insetlist.insetIterator(pos);
 421                                 // and ensure we have a valid end iterator.
 422                                 pend = par->insetlist.end();
 423
 424                                 if (cursor_par == par) {
 425                                         // update the saved cursor position
 426                                         if (cursor_pos > pos)
 427                                                 --cursor_pos;
 428                                 }
 429                         } else {
 430                                 ++pit;
 431                         }
 432                 }
 433                 if (removed) {
 434                         found = true;
 435                         text->redoParagraph(this);
 436                 }
 437         }
 438
 439         // It is possible that the last line is empty if it was cursor_par
 440         // and/or only had an error inset on it.  So we set the cursor to the
 441         // start of the doc to force its removal and ensure a valid saved cursor
 442         if (text->setCursor(this, text->ownerParagraph(), 0)
 443             && 0 == cursor_par_next) {
 444                 cursor_par = cursor_par_prev;
 445                 cursor_pos = cursor_par->size();
 446         } else if (cursor_pos > cursor_par->size()) {
 447                 // Some C-Enter lines were removed by the setCursor call which
 448                 // then invalidated cursor_pos. It could still be "wrong" because
 449                 // the cursor may appear to have jumped but since we collapsed
 450                 // some C-Enter lines this should be a reasonable compromise.
 451                 cursor_pos = cursor_par->size();
 452         }
 453
 454         // restore the original cursor in its corrected location.
 455         text->setCursorIntern(this, cursor_par, cursor_pos);
 456
 457         return found;
 458 }
 459
 460
 461 void BufferView::insertErrors(TeXErrors & terr)
 462 {
 463         // Save the cursor position
 464         LyXCursor cursor = text->cursor;
 465
 466         TeXErrors::Errors::const_iterator cit = terr.begin();
 467         TeXErrors::Errors::const_iterator end = terr.end();
 468         for (; cit != end; ++cit) {
 469                 string const desctext(cit->error_desc);
 470                 string const errortext(cit->error_text);
 471                 string const msgtxt = desctext + '\n' + errortext;
 472                 int const errorrow = cit->error_in_line;
 473
 474                 // Insert error string for row number
 475                 int tmpid = -1;
 476                 int tmppos = -1;
 477
 478                 if (buffer()->texrow.getIdFromRow(errorrow, tmpid, tmppos)) {
 479                         buffer()->texrow.increasePos(tmpid, tmppos);
 480                 }
 481
 482                 Paragraph * texrowpar = 0;
 483
 484                 if (tmpid == -1) {
 485                         texrowpar = text->ownerParagraph();
 486                         tmppos = 0;
 487                 } else {
 488                         texrowpar = buffer()->getParFromID(tmpid);
 489                 }
 490
 491                 if (texrowpar == 0)
 492                         continue;
 493
 494                 freezeUndo();
 495                 InsetError * new_inset = new InsetError(msgtxt);
 496                 text->setCursorIntern(this, texrowpar, tmppos);
 497                 text->insertInset(this, new_inset);
 498                 text->fullRebreak(this);
 499                 unFreezeUndo();
 500         }
 501         // Restore the cursor position
 502         text->setCursorIntern(this, cursor.par(), cursor.pos());
 503 }
 504
 505
 506 void BufferView::setCursorFromRow(int row)
 507 {
 508         int tmpid = -1;
 509         int tmppos = -1;
 510
 511         buffer()->texrow.getIdFromRow(row, tmpid, tmppos);
 512
 513         Paragraph * texrowpar;
 514
 515         if (tmpid == -1) {
 516                 texrowpar = text->ownerParagraph();
 517                 tmppos = 0;
 518         } else {
 519                 texrowpar = buffer()->getParFromID(tmpid);
 520         }
 521         text->setCursor(this, texrowpar, tmppos);
 522 }
 523
 524
 525 bool BufferView::insertInset(Inset * inset, string const & lout)
 526 {
 527         return pimpl_->insertInset(inset, lout);
 528 }
 529
 530
 531 // This is also a buffer property (ale)
 532 // Not so sure about that. a goto Label function can not be buffer local, just
 533 // think how this will work in a multiwindow/buffer environment, all the
 534 // cursors in all the views showing this buffer will move. (Lgb)
 535 // OK, then no cursor action should be allowed in buffer. (ale)
 536 bool BufferView::gotoLabel(string const & label)
 537 {
 538         for (Buffer::inset_iterator it = buffer()->inset_iterator_begin();
 539              it != buffer()->inset_iterator_end(); ++it) {
 540                 vector<string> labels = it->getLabelList();
 541                 if (find(labels.begin(),labels.end(),label)
 542                      != labels.end()) {
 543                         beforeChange(text);
 544                         text->setCursor(this, it.getPar(), it.getPos());
 545                         text->selection.cursor = text->cursor;
 546                         update(text, BufferView::SELECT|BufferView::FITCUR);
 547                         return true;
 548                 }
 549         }
 550         return false;
 551 }
 552
 553
 554 void BufferView::undo()
 555 {
 556         if (!available())
 557                 return;
 558
 559         owner()->message(_("Undo"));
 560         hideCursor();
 561         beforeChange(text);
 562         update(text, BufferView::SELECT|BufferView::FITCUR);
 563         if (!textUndo(this))
 564                 owner()->message(_("No further undo information"));
 565         else
 566                 update(text, BufferView::SELECT|BufferView::FITCUR|BufferView::CHANGE);
 567         switchKeyMap();
 568 }
 569
 570
 571 void BufferView::redo()
 572 {
 573         if (!available())
 574                 return;
 575
 576         owner()->message(_("Redo"));
 577         hideCursor();
 578         beforeChange(text);
 579         update(text, BufferView::SELECT|BufferView::FITCUR);
 580         if (!textRedo(this))
 581                 owner()->message(_("No further redo information"));
 582         else
 583                 update(text, BufferView::SELECT|BufferView::FITCUR|BufferView::CHANGE);
 584         switchKeyMap();
 585 }
 586
 587
 588 void BufferView::copyEnvironment()
 589 {
 590         if (available()) {
 591                 text->copyEnvironmentType();
 592                 owner()->message(_("Paragraph environment type copied"));
 593         }
 594 }
 595
 596
 597 void BufferView::pasteEnvironment()
 598 {
 599         if (available()) {
 600                 text->pasteEnvironmentType(this);
 601                 owner()->message(_("Paragraph environment type set"));
 602                 update(text, BufferView::SELECT|BufferView::FITCUR|BufferView::CHANGE);
 603         }
 604 }
 605
 606
 607 // these functions are for the spellchecker
 608 WordLangTuple const BufferView::nextWord(float & value)
 609 {
 610         if (!available()) {
 611                 value = 1;
 612                 return WordLangTuple();
 613         }
 614
 615         return text->selectNextWordToSpellcheck(this, value);
 616 }
 617
 618
 619 void BufferView::selectLastWord()
 620 {
 621         if (!available())
 622                 return;
 623
 624         LyXCursor cur = text->selection.cursor;
 625         hideCursor();
 626         beforeChange(text);
 627         text->selection.cursor = cur;
 628         text->selectSelectedWord(this);
 629         toggleSelection(false);
 630         update(text, BufferView::SELECT|BufferView::FITCUR);
 631 }
 632
 633
 634 void BufferView::endOfSpellCheck()
 635 {
 636         if (!available()) return;
 637
 638         hideCursor();
 639         beforeChange(text);
 640         text->selectSelectedWord(this);
 641         text->clearSelection();
 642         update(text, BufferView::SELECT|BufferView::FITCUR);
 643 }
 644
 645
 646 void BufferView::replaceWord(string const & replacestring)
 647 {
 648         if (!available())
 649                 return;
 650
 651         LyXText * tt = getLyXText();
 652         hideCursor();
 653         update(tt, BufferView::SELECT|BufferView::FITCUR);
 654
 655         // clear the selection (if there is any)
 656         toggleSelection(false);
 657         update(tt, BufferView::SELECT|BufferView::FITCUR);
 658
 659         // clear the selection (if there is any)
 660         toggleSelection(false);
 661         tt->replaceSelectionWithString(this, replacestring);
 662
 663         tt->setSelectionRange(this, replacestring.length());
 664
 665         // Go back so that replacement string is also spellchecked
 666         for (string::size_type i = 0; i < replacestring.length() + 1; ++i) {
 667                 tt->cursorLeft(this);
 668         }
 669         update(tt, BufferView::SELECT|BufferView::FITCUR|BufferView::CHANGE);
 670 }
 671 // End of spellchecker stuff
 672
 673
 674 bool BufferView::lockInset(UpdatableInset * inset)
 675 {
 676         if (!inset)
 677                 return false;
 678         // don't relock if we're already locked
 679         if (theLockingInset() == inset)
 680                 return true;
 681         if (!theLockingInset()) {
 682                 // first check if it's the inset under the cursor we want lock
 683                 // should be most of the time
 684                 char const c = text->cursor.par()->getChar(text->cursor.pos());
 685                 if (c == Paragraph::META_INSET) {
 686                         Inset * in = text->cursor.par()->getInset(text->cursor.pos());
 687                         if (inset == in) {
 688                                 theLockingInset(inset);
 689                                 return true;
 690                         }
 691                 }
 692                 // Then do a deep look of the inset and lock the right one
 693                 int const id = inset->id();
 694                 ParagraphList::iterator pit = buffer()->paragraphs.begin();
 695                 ParagraphList::iterator pend = buffer()->paragraphs.end();
 696                 for (; pit != pend; ++pit) {
 697                         InsetList::iterator it = pit->insetlist.begin();
 698                         InsetList::iterator end = pit->insetlist.end();
 699                         for (; it != end; ++it) {
 700                                 if (it.getInset() == inset) {
 701                                         text->setCursorIntern(this, &*pit, it.getPos());
 702                                         theLockingInset(inset);
 703                                         return true;
 704                                 }
 705                                 if (it.getInset()->getInsetFromID(id)) {
 706                                         text->setCursorIntern(this, &*pit, it.getPos());
 707                                         it.getInset()->edit(this);
 708                                         return theLockingInset()->lockInsetInInset(this, inset);
 709                                 }
 710                         }
 711                 }
 712                 return false;
 713         }
 714         return theLockingInset()->lockInsetInInset(this, inset);
 715 }
 716
 717
 718 void BufferView::showLockedInsetCursor(int x, int y, int asc, int desc)
 719 {
 720         if (available() && theLockingInset() && !theLockingInset()->nodraw()) {
 721                 LyXCursor cursor = text->cursor;
 722                 Inset * locking_inset = theLockingInset()->getLockingInset();
 723
 724                 if ((cursor.pos() - 1 >= 0) &&
 725                     cursor.par()->isInset(cursor.pos() - 1) &&
 726                     (cursor.par()->getInset(cursor.pos() - 1) ==
 727                      locking_inset))
 728                         text->setCursor(this, cursor,
 729                                         cursor.par(), cursor.pos() - 1);
 730                 LyXScreen::Cursor_Shape shape = LyXScreen::BAR_SHAPE;
 731                 LyXText * txt = getLyXText();
 732                 if (locking_inset->isTextInset() &&
 733                     locking_inset->lyxCode() != Inset::ERT_CODE &&
 734                     (txt->real_current_font.language() !=
 735                      buffer()->params.language
 736                      || txt->real_current_font.isVisibleRightToLeft()
 737                      != buffer()->params.language->RightToLeft()))
 738                         shape = (txt->real_current_font.isVisibleRightToLeft())
 739                                 ? LyXScreen::REVERSED_L_SHAPE
 740                                 : LyXScreen::L_SHAPE;
 741                 y += cursor.iy() + theLockingInset()->insetInInsetY();
 742                 screen().showManualCursor(text, x, y, asc, desc,
 743                                                   shape);
 744         }
 745 }
 746
 747
 748 void BufferView::hideLockedInsetCursor()
 749 {
 750         if (theLockingInset() && available()) {
 751                 screen().hideCursor();
 752         }
 753 }
 754
 755
 756 bool BufferView::fitLockedInsetCursor(int x, int y, int asc, int desc)
 757 {
 758         if (theLockingInset() && available()) {
 759                 y += text->cursor.iy() + theLockingInset()->insetInInsetY();
 760                 if (screen().fitManualCursor(this, text, x, y, asc, desc)) {
 761                         updateScrollbar();
 762                         return true;
 763                 }
 764         }
 765         return false;
 766 }
 767
 768
 769 int BufferView::unlockInset(UpdatableInset * inset)
 770 {
 771         if (!inset)
 772                 return 0;
 773         if (inset && theLockingInset() == inset) {
 774                 inset->insetUnlock(this);
 775                 theLockingInset(0);
 776                 // make sure we update the combo !
 777                 owner()->setLayout(getLyXText()->cursor.par()->layout()->name());
 778                 // Tell the paragraph dialog that we changed paragraph
 779                 owner()->getDialogs().updateParagraph();
 780                 finishUndo();
 781                 return 0;
 782         } else if (inset && theLockingInset() &&
 783                    theLockingInset()->unlockInsetInInset(this, inset)) {
 784                 // Tell the paragraph dialog that we changed paragraph
 785                 owner()->getDialogs().updateParagraph();
 786                 // owner inset has updated the layout combo
 787                 finishUndo();
 788                 return 0;
 789         }
 790         return 1;
 791 }
 792
 793
 794 void BufferView::lockedInsetStoreUndo(Undo::undo_kind kind)
 795 {
 796         if (!theLockingInset())
 797                 return; // shouldn't happen
 798         if (kind == Undo::EDIT) // in this case insets would not be stored!
 799                 kind = Undo::FINISH;
 800         setUndo(this, kind,
 801                 text->cursor.par(),
 802                 text->cursor.par()->next());
 803 }
 804
 805
 806 void BufferView::updateInset(Inset * inset, bool mark_dirty)
 807 {
 808         pimpl_->updateInset(inset, mark_dirty);
 809 }
 810
 811
 812 bool BufferView::ChangeInsets(Inset::Code code,
 813                               string const & from, string const & to)
 814 {
 815         bool need_update = false;
 816         LyXCursor cursor = text->cursor;
 817         LyXCursor tmpcursor = cursor;
 818         cursor.par(tmpcursor.par());
 819         cursor.pos(tmpcursor.pos());
 820
 821         ParIterator end = buffer()->par_iterator_end();
 822         for (ParIterator it = buffer()->par_iterator_begin();
 823              it != end; ++it) {
 824                 Paragraph * par = *it;
 825                 bool changed_inset = false;
 826                 for (InsetList::iterator it2 = par->insetlist.begin();
 827                      it2 != par->insetlist.end(); ++it2) {
 828                         if (it2.getInset()->lyxCode() == code) {
 829                                 InsetCommand * inset = static_cast<InsetCommand *>(it2.getInset());
 830                                 if (inset->getContents() == from) {
 831                                         inset->setContents(to);
 832                                         changed_inset = true;
 833                                 }
 834                         }
 835                 }
 836                 if (changed_inset) {
 837                         need_update = true;
 838
 839                         // FIXME
 840
 841                         // The test it.size()==1 was needed to prevent crashes.
 842                         // How to set the cursor corretly when it.size()>1 ??
 843                         if (it.size() == 1) {
 844                                 text->setCursorIntern(this, par, 0);
 845                                 text->redoParagraphs(this, text->cursor,
 846                                                      text->cursor.par()->next());
 847                                 text->fullRebreak(this);
 848                         }
 849                 }
 850         }
 851         text->setCursorIntern(this, cursor.par(), cursor.pos());
 852         return need_update;
 853 }
 854
 855
 856 bool BufferView::ChangeRefsIfUnique(string const & from, string const & to)
 857 {
 858         // Check if the label 'from' appears more than once
 859         vector<string> labels = buffer()->getLabelList();
 860
 861         if (lyx::count(labels.begin(), labels.end(), from) > 1)
 862                 return false;
 863
 864         return ChangeInsets(Inset::REF_CODE, from, to);
 865 }
 866
 867
 868 bool BufferView::ChangeCitationsIfUnique(string const & from,
 869                                          string const & to)
 870 {
 871         typedef pair<string, string> StringPair;
 872
 873         vector<StringPair> keys = buffer()->getBibkeyList();
 874         if (count_if(keys.begin(), keys.end(),
 875                      lyx::equal_1st_in_pair<StringPair>(from))
 876             > 1)
 877                 return false;
 878
 879         return ChangeInsets(Inset::CITE_CODE, from, to);
 880 }
 881
 882
 883 UpdatableInset * BufferView::theLockingInset() const
 884 {
 885         // If NULL is not allowed we should put an Assert here. (Lgb)
 886         if (text)
 887                 return text->the_locking_inset;
 888         return 0;
 889 }
 890
 891
 892 void BufferView::theLockingInset(UpdatableInset * inset)
 893 {
 894         text->the_locking_inset = inset;
 895 }
 896
 897
 898 LyXText * BufferView::getLyXText() const
 899 {
 900         if (theLockingInset()) {
 901                 LyXText * txt = theLockingInset()->getLyXText(this, true);
 902                 if (txt)
 903                         return txt;
 904         }
 905         return text;
 906 }
 907
 908
 909 LyXText * BufferView::getParentText(Inset * inset) const
 910 {
 911         if (inset->owner()) {
 912                 LyXText * txt = inset->getLyXText(this);
 913                 inset = inset->owner();
 914                 while (inset && inset->getLyXText(this) == txt)
 915                         inset = inset->owner();
 916                 if (inset)
 917                         return inset->getLyXText(this);
 918         }
 919         return text;
 920 }
 921
 922
 923 Language const * BufferView::getParentLanguage(Inset * inset) const
 924 {
 925         LyXText * text = getParentText(inset);
 926         return text->cursor.par()->getFontSettings(buffer()->params,
 927                                                    text->cursor.pos()).language();
 928 }
 929
 930
 931 Encoding const * BufferView::getEncoding() const
 932 {
 933         LyXText * t = getLyXText();
 934         if (!t)
 935                 return 0;
 936
 937         LyXCursor const & c= t->cursor;
 938         LyXFont const font = c.par()->getFont(buffer()->params, c.pos());
 939         return font.language()->encoding();
 940 }
 941
 942
 943 void BufferView::haveSelection(bool sel)
 944 {
 945         pimpl_->workarea().haveSelection(sel);
 946 }
 947
 948
 949 int BufferView::workHeight() const
 950 {
 951         return pimpl_->workarea().workHeight();
 952 }