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 "ParagraphParameters.h"
  18 #include "WordLangTuple.h"
  19 #include "buffer.h"
  20 #include "bufferlist.h"
  21 #include "debug.h"
  22 #include "gettext.h"
  23 #include "iterators.h"
  24 #include "language.h"
  25 #include "lyxcursor.h"
  26 #include "lyxlex.h"
  27 #include "lyxtext.h"
  28 #include "undo_funcs.h"
  29 #include "changes.h"
  30
  31 #include "frontends/Alert.h"
  32 #include "frontends/Dialogs.h"
  33 #include "frontends/LyXView.h"
  34 #include "frontends/WorkArea.h"
  35 #include "frontends/screen.h"
  36
  37 #include "insets/insetcommand.h" // ChangeRefs
  38 #include "insets/inseterror.h"
  39 #include "insets/updatableinset.h"
  40
  41 #include "support/FileInfo.h"
  42 #include "support/filetools.h"
  43 #include "support/lyxfunctional.h" // equal_1st_in_pair
  44 #include "support/types.h"
  45 #include "support/lyxalgo.h" // lyx_count
  46 #include "support/BoostFormat.h"
  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 LyXView * BufferView::owner() const
  90 {
  91         return pimpl_->owner_;
  92 }
  93
  94
  95 Painter & BufferView::painter() const
  96 {
  97         return pimpl_->painter();
  98 }
  99
 100
 101 void BufferView::buffer(Buffer * b)
 102 {
 103         pimpl_->buffer(b);
 104 }
 105
 106
 107 void BufferView::reload()
 108 {
 109         string const fn = buffer()->fileName();
 110         if (bufferlist.close(buffer(), false))
 111                 buffer(bufferlist.loadLyXFile(fn));
 112 }
 113
 114
 115 void BufferView::resize()
 116 {
 117         if (pimpl_->buffer_) {
 118                 pimpl_->resizeCurrentBuffer();
 119         }
 120 }
 121
 122
 123 void BufferView::repaint()
 124 {
 125         pimpl_->repaint();
 126 }
 127
 128
 129 bool BufferView::fitCursor()
 130 {
 131         return pimpl_->fitCursor();
 132 }
 133
 134
 135 void BufferView::update()
 136 {
 137         pimpl_->update();
 138 }
 139
 140
 141 void BufferView::updateScrollbar()
 142 {
 143         pimpl_->updateScrollbar();
 144 }
 145
 146
 147 void BufferView::scrollDocView(int value)
 148 {
 149         pimpl_->scrollDocView(value);
 150 }
 151
 152
 153 void BufferView::redoCurrentBuffer()
 154 {
 155         pimpl_->redoCurrentBuffer();
 156 }
 157
 158
 159 bool BufferView::available() const
 160 {
 161         return pimpl_->available();
 162 }
 163
 164
 165 Change const BufferView::getCurrentChange()
 166 {
 167         return pimpl_->getCurrentChange();
 168 }
 169
 170
 171 void BufferView::beforeChange(LyXText * text)
 172 {
 173         pimpl_->beforeChange(text);
 174 }
 175
 176
 177 void BufferView::savePosition(unsigned int i)
 178 {
 179         pimpl_->savePosition(i);
 180 }
 181
 182
 183 void BufferView::restorePosition(unsigned int i)
 184 {
 185         pimpl_->restorePosition(i);
 186 }
 187
 188
 189 bool BufferView::isSavedPosition(unsigned int i)
 190 {
 191         return pimpl_->isSavedPosition(i);
 192 }
 193
 194
 195 void BufferView::update(LyXText * text, UpdateCodes f)
 196 {
 197         pimpl_->update(text, f);
 198 }
 199
 200
 201 void BufferView::update(UpdateCodes f)
 202 {
 203         pimpl_->update(f);
 204 }
 205
 206
 207 void BufferView::switchKeyMap()
 208 {
 209         pimpl_->switchKeyMap();
 210 }
 211
 212
 213 void BufferView::insetUnlock()
 214 {
 215         pimpl_->insetUnlock();
 216 }
 217
 218
 219 int BufferView::workWidth() const
 220 {
 221         return pimpl_->workarea().workWidth();
 222 }
 223
 224
 225 void BufferView::showCursor()
 226 {
 227         pimpl_->showCursor();
 228 }
 229
 230
 231 void BufferView::hideCursor()
 232 {
 233         pimpl_->hideCursor();
 234 }
 235
 236
 237 void BufferView::toggleSelection(bool b)
 238 {
 239         pimpl_->toggleSelection(b);
 240 }
 241
 242
 243 void BufferView::toggleToggle()
 244 {
 245         pimpl_->toggleToggle();
 246 }
 247
 248
 249 void BufferView::center()
 250 {
 251         pimpl_->center();
 252 }
 253
 254
 255 string const BufferView::getClipboard() const
 256 {
 257         return pimpl_->workarea().getClipboard();
 258 }
 259
 260
 261 void BufferView::stuffClipboard(string const & stuff) const
 262 {
 263         pimpl_->stuffClipboard(stuff);
 264 }
 265
 266
 267 BufferView::UpdateCodes operator|(BufferView::UpdateCodes uc1,
 268                                   BufferView::UpdateCodes uc2)
 269 {
 270         return static_cast<BufferView::UpdateCodes>
 271                 (static_cast<int>(uc1) | static_cast<int>(uc2));
 272 }
 273
 274
 275 bool BufferView::dispatch(FuncRequest const & ev)
 276 {
 277         return pimpl_->dispatch(ev);
 278 }
 279
 280
 281 void BufferView::scroll(int lines)
 282 {
 283         pimpl_->scroll(lines);
 284 }
 285
 286
 287 // Inserts a file into current document
 288 bool BufferView::insertLyXFile(string const & filen)
 289         //
 290         // Copyright CHT Software Service GmbH
 291         // Uwe C. Schroeder
 292         //
 293         // Insert a LyXformat - file into current buffer
 294         //
 295         // Moved from lyx_cb.C (Lgb)
 296 {
 297         if (filen.empty())
 298                 return false;
 299
 300         string const fname = MakeAbsPath(filen);
 301
 302         // check if file exist
 303         FileInfo const fi(fname);
 304
 305         if (!fi.readable()) {
 306                 string const file = MakeDisplayPath(fname, 50);
 307 #if USE_BOOST_FORMAT
 308                 boost::format fmt(_("The specified document\n%1$s\ncould not be read."));
 309                 fmt % file;
 310                 string text = fmt.str();
 311 #else
 312                 string text = _("The specified document\n");
 313                 text += file + _(" could not be read.");
 314 #endif
 315                 Alert::error(_("Could not read document"), text);
 316                 return false;
 317         }
 318
 319         beforeChange(text);
 320
 321         ifstream ifs(fname.c_str());
 322         if (!ifs) {
 323                 string const file = MakeDisplayPath(fname, 50);
 324 #if USE_BOOST_FORMAT
 325                 boost::format fmt(_("Could not open the specified document\n%1$s."));
 326                 fmt % file;
 327                 string text = fmt.str();
 328 #else
 329                 string text = _("Could not open the specified document\n");
 330                 text += file + ".";
 331 #endif
 332                 Alert::error(_("Could not open file"), text);
 333                 return false;
 334         }
 335
 336         int const c = ifs.peek();
 337
 338         LyXLex lex(0, 0);
 339         lex.setStream(ifs);
 340
 341         bool res = true;
 342
 343         if (c == '#') {
 344                 // FIXME: huh ? No we won't !
 345                 lyxerr[Debug::INFO] << "Will insert file with header" << endl;
 346                 res = buffer()->readFile(lex, fname, ParagraphList::iterator(text->cursor.par()));
 347         } else {
 348                 lyxerr[Debug::INFO] << "Will insert file without header"
 349                                     << endl;
 350                 res = buffer()->readBody(lex, ParagraphList::iterator(text->cursor.par()));
 351         }
 352
 353         resize();
 354         return res;
 355 }
 356
 357
 358 bool BufferView::removeAutoInsets()
 359 {
 360         // keep track of which pos and par the cursor was on
 361         Paragraph * cursor_par = text->cursor.par();
 362         Paragraph * cursor_par_prev = cursor_par ? cursor_par->previous() : 0;
 363         Paragraph * cursor_par_next = cursor_par ? cursor_par->next() : 0;
 364         pos_type cursor_pos = text->cursor.pos();
 365
 366         bool found = false;
 367
 368         // Trap the deletion of the paragraph the cursor is in.
 369         // Iterate until we find a paragraph that won't be immediately deleted.
 370         // In reality this should mean we only execute the body of the while
 371         // loop once at most.  However for safety we iterate rather than just
 372         // make this an if () conditional.
 373         while ((cursor_par_prev || cursor_par_next)
 374                && text->setCursor(
 375                                   cursor_par_prev ? cursor_par_prev : cursor_par_next,
 376                                   0)) {
 377                 // We just removed cursor_par so have to fix the "cursor"
 378                 if (cursor_par_prev) {
 379                         // '.' = cursor_par
 380                         //  a -> a.
 381                         // .
 382                         cursor_par = cursor_par_prev;
 383                         cursor_pos = cursor_par->size();
 384                 } else {
 385                         // .  -> .a
 386                         //  a
 387                         cursor_par = cursor_par_next;
 388                         cursor_pos = 0;
 389                 }
 390                 cursor_par_prev = cursor_par->previous();
 391                 cursor_par_next = cursor_par->next();
 392         }
 393
 394         // Iterate through the paragraphs removing autoDelete insets as we go.
 395         // If the paragraph ends up empty after all the autoDelete insets are
 396         // removed that paragraph will be removed by the next setCursor() call.
 397         ParIterator it = buffer()->par_iterator_begin();
 398         ParIterator end = buffer()->par_iterator_end();
 399         for (; it != end; ++it) {
 400                 Paragraph * par = *it;
 401                 Paragraph * par_prev = par ? par->previous() : 0;
 402                 bool removed = false;
 403
 404                 if (text->setCursor(par, 0)
 405                     && cursor_par == par_prev) {
 406                         // The previous setCursor line was deleted and that
 407                         // was the cursor_par line.  This can only happen if an
 408                         // error box was the sole item on cursor_par.
 409                         // It is possible for cursor_par_prev to be stray if
 410                         // the line it pointed to only had a error box on it
 411                         // so we have to set it to a known correct value.
 412                         // This is often the same value it already had.
 413                         cursor_par_prev = par->previous();
 414                         if (cursor_par_prev) {
 415                                 // '|' = par, '.' = cursor_par, 'E' = error box
 416                                 // First step below may occur before while{}
 417                                 //  a    |a      a     a     a.
 418                                 //  E -> .E -> |.E -> .  -> |b
 419                                 // .      b      b    |b
 420                                 //  b
 421                                 cursor_par = cursor_par_prev;
 422                                 cursor_pos = cursor_par_prev->size();
 423                                 cursor_par_prev = cursor_par->previous();
 424                                 // cursor_par_next remains the same
 425                         } else if (cursor_par_next) {
 426                                 // First step below may occur before while{}
 427                                 // .
 428                                 //  E -> |.E -> |.  -> . -> .|a
 429                                 //  a      a      a    |a
 430                                 cursor_par = cursor_par_next;
 431                                 cursor_pos = 0;
 432                                 // cursor_par_prev remains unset
 433                                 cursor_par_next = cursor_par->next();
 434                         } else {
 435                                 // I can't find a way to trigger this
 436                                 // so it should be unreachable code
 437                                 // unless the buffer is corrupted.
 438                                 lyxerr << "BufferView::removeAutoInsets() is bad\n";
 439                         }
 440                 }
 441
 442                 InsetList::iterator pit = par->insetlist.begin();
 443                 InsetList::iterator pend = par->insetlist.end();
 444
 445                 while (pit != pend) {
 446                         if (pit.getInset()->autoDelete()) {
 447                                 removed = true;
 448                                 pos_type const pos = pit.getPos();
 449
 450                                 par->erase(pos);
 451                                 // We just invalidated par's inset iterators so
 452                                 // we get the next valid iterator position
 453                                 pit = par->insetlist.insetIterator(pos);
 454                                 // and ensure we have a valid end iterator.
 455                                 pend = par->insetlist.end();
 456
 457                                 if (cursor_par == par) {
 458                                         // update the saved cursor position
 459                                         if (cursor_pos > pos)
 460                                                 --cursor_pos;
 461                                 }
 462                         } else {
 463                                 ++pit;
 464                         }
 465                 }
 466                 if (removed) {
 467                         found = true;
 468                         text->redoParagraph();
 469                 }
 470         }
 471
 472         // It is possible that the last line is empty if it was cursor_par
 473         // and/or only had an error inset on it.  So we set the cursor to the
 474         // start of the doc to force its removal and ensure a valid saved cursor
 475         if (text->setCursor(text->ownerParagraph(), 0)
 476             && 0 == cursor_par_next) {
 477                 cursor_par = cursor_par_prev;
 478                 cursor_pos = cursor_par->size();
 479         } else if (cursor_pos > cursor_par->size()) {
 480                 // Some C-Enter lines were removed by the setCursor call which
 481                 // then invalidated cursor_pos. It could still be "wrong" because
 482                 // the cursor may appear to have jumped but since we collapsed
 483                 // some C-Enter lines this should be a reasonable compromise.
 484                 cursor_pos = cursor_par->size();
 485         }
 486
 487         // restore the original cursor in its corrected location.
 488         text->setCursorIntern(cursor_par, cursor_pos);
 489
 490         return found;
 491 }
 492
 493
 494 void BufferView::insertErrors(TeXErrors & terr)
 495 {
 496         // Save the cursor position
 497         LyXCursor cursor = text->cursor;
 498
 499         TeXErrors::Errors::const_iterator cit = terr.begin();
 500         TeXErrors::Errors::const_iterator end = terr.end();
 501         for (; cit != end; ++cit) {
 502                 string const desctext(cit->error_desc);
 503                 string const errortext(cit->error_text);
 504                 string const msgtxt = desctext + '\n' + errortext;
 505                 int const errorrow = cit->error_in_line;
 506
 507                 // Insert error string for row number
 508                 int tmpid = -1;
 509                 int tmppos = -1;
 510
 511                 if (buffer()->texrow.getIdFromRow(errorrow, tmpid, tmppos)) {
 512                         buffer()->texrow.increasePos(tmpid, tmppos);
 513                 }
 514
 515                 Paragraph * texrowpar = 0;
 516
 517                 if (tmpid == -1) {
 518                         texrowpar = text->ownerParagraph();
 519                         tmppos = 0;
 520                 } else {
 521                         texrowpar = buffer()->getParFromID(tmpid);
 522                 }
 523
 524                 if (texrowpar == 0)
 525                         continue;
 526
 527                 freezeUndo();
 528                 InsetError * new_inset = new InsetError(msgtxt);
 529                 text->setCursorIntern(texrowpar, tmppos);
 530                 text->insertInset(new_inset);
 531                 text->fullRebreak();
 532                 unFreezeUndo();
 533         }
 534         // Restore the cursor position
 535         text->setCursorIntern(cursor.par(), cursor.pos());
 536 }
 537
 538
 539 void BufferView::setCursorFromRow(int row)
 540 {
 541         int tmpid = -1;
 542         int tmppos = -1;
 543
 544         buffer()->texrow.getIdFromRow(row, tmpid, tmppos);
 545
 546         Paragraph * texrowpar;
 547
 548         if (tmpid == -1) {
 549                 texrowpar = text->ownerParagraph();
 550                 tmppos = 0;
 551         } else {
 552                 texrowpar = buffer()->getParFromID(tmpid);
 553         }
 554         text->setCursor(texrowpar, tmppos);
 555 }
 556
 557
 558 bool BufferView::insertInset(Inset * inset, string const & lout)
 559 {
 560         return pimpl_->insertInset(inset, lout);
 561 }
 562
 563
 564 void BufferView::gotoLabel(string const & label)
 565 {
 566         for (Buffer::inset_iterator it = buffer()->inset_iterator_begin();
 567              it != buffer()->inset_iterator_end(); ++it) {
 568                 vector<string> labels = it->getLabelList();
 569                 if (find(labels.begin(),labels.end(),label)
 570                      != labels.end()) {
 571                         beforeChange(text);
 572                         text->setCursor(it.getPar(), it.getPos());
 573                         text->selection.cursor = text->cursor;
 574                         update(text, BufferView::SELECT);
 575                         return;
 576                 }
 577         }
 578 }
 579
 580
 581 void BufferView::undo()
 582 {
 583         if (!available())
 584                 return;
 585
 586         owner()->message(_("Undo"));
 587         hideCursor();
 588         beforeChange(text);
 589         update(text, BufferView::SELECT);
 590         if (!textUndo(this))
 591                 owner()->message(_("No further undo information"));
 592         else
 593                 update(text, BufferView::SELECT);
 594         switchKeyMap();
 595 }
 596
 597
 598 void BufferView::redo()
 599 {
 600         if (!available())
 601                 return;
 602
 603         owner()->message(_("Redo"));
 604         hideCursor();
 605         beforeChange(text);
 606         update(text, BufferView::SELECT);
 607         if (!textRedo(this))
 608                 owner()->message(_("No further redo information"));
 609         else
 610                 update(text, BufferView::SELECT);
 611         switchKeyMap();
 612 }
 613
 614
 615 void BufferView::copyEnvironment()
 616 {
 617         if (available()) {
 618                 text->copyEnvironmentType();
 619                 owner()->message(_("Paragraph environment type copied"));
 620         }
 621 }
 622
 623
 624 void BufferView::pasteEnvironment()
 625 {
 626         if (available()) {
 627                 text->pasteEnvironmentType();
 628                 owner()->message(_("Paragraph environment type set"));
 629                 update(text, BufferView::SELECT);
 630         }
 631 }
 632
 633
 634 // these functions are for the spellchecker
 635 WordLangTuple const BufferView::nextWord(float & value)
 636 {
 637         if (!available()) {
 638                 value = 1;
 639                 return WordLangTuple();
 640         }
 641
 642         return text->selectNextWordToSpellcheck(value);
 643 }
 644
 645
 646 void BufferView::selectLastWord()
 647 {
 648         if (!available())
 649                 return;
 650
 651         LyXCursor cur = text->selection.cursor;
 652         hideCursor();
 653         beforeChange(text);
 654         text->selection.cursor = cur;
 655         text->selectSelectedWord();
 656         toggleSelection(false);
 657         update(text, BufferView::SELECT);
 658 }
 659
 660
 661 void BufferView::endOfSpellCheck()
 662 {
 663         if (!available()) return;
 664
 665         hideCursor();
 666         beforeChange(text);
 667         text->selectSelectedWord();
 668         text->clearSelection();
 669         update(text, BufferView::SELECT);
 670 }
 671
 672
 673 void BufferView::replaceWord(string const & replacestring)
 674 {
 675         if (!available())
 676                 return;
 677
 678         LyXText * tt = getLyXText();
 679         hideCursor();
 680         update(tt, BufferView::SELECT);
 681
 682         // clear the selection (if there is any)
 683         toggleSelection(false);
 684         update(tt, BufferView::SELECT);
 685
 686         // clear the selection (if there is any)
 687         toggleSelection(false);
 688         tt->replaceSelectionWithString(replacestring);
 689
 690         tt->setSelectionRange(replacestring.length());
 691
 692         // Go back so that replacement string is also spellchecked
 693         for (string::size_type i = 0; i < replacestring.length() + 1; ++i) {
 694                 tt->cursorLeft(this);
 695         }
 696         update(tt, BufferView::SELECT);
 697
 698         // FIXME: should be done through LFUN
 699         buffer()->markDirty();
 700         fitCursor();
 701 }
 702 // End of spellchecker stuff
 703
 704
 705 bool BufferView::lockInset(UpdatableInset * inset)
 706 {
 707         if (!inset)
 708                 return false;
 709         // don't relock if we're already locked
 710         if (theLockingInset() == inset)
 711                 return true;
 712         if (!theLockingInset()) {
 713                 // first check if it's the inset under the cursor we want lock
 714                 // should be most of the time
 715                 char const c = text->cursor.par()->getChar(text->cursor.pos());
 716                 if (c == Paragraph::META_INSET) {
 717                         Inset * in = text->cursor.par()->getInset(text->cursor.pos());
 718                         if (inset == in) {
 719                                 theLockingInset(inset);
 720                                 return true;
 721                         }
 722                 }
 723                 // Then do a deep look of the inset and lock the right one
 724                 int const id = inset->id();
 725                 ParagraphList::iterator pit = buffer()->paragraphs.begin();
 726                 ParagraphList::iterator pend = buffer()->paragraphs.end();
 727                 for (; pit != pend; ++pit) {
 728                         InsetList::iterator it = pit->insetlist.begin();
 729                         InsetList::iterator end = pit->insetlist.end();
 730                         for (; it != end; ++it) {
 731                                 if (it.getInset() == inset) {
 732                                         text->setCursorIntern(&*pit, it.getPos());
 733                                         theLockingInset(inset);
 734                                         return true;
 735                                 }
 736                                 if (it.getInset()->getInsetFromID(id)) {
 737                                         text->setCursorIntern(&*pit, it.getPos());
 738                                         it.getInset()->edit(this);
 739                                         return theLockingInset()->lockInsetInInset(this, inset);
 740                                 }
 741                         }
 742                 }
 743                 return false;
 744         }
 745         return theLockingInset()->lockInsetInInset(this, inset);
 746 }
 747
 748
 749 void BufferView::showLockedInsetCursor(int x, int y, int asc, int desc)
 750 {
 751         if (available() && theLockingInset() && !theLockingInset()->nodraw()) {
 752                 LyXCursor cursor = text->cursor;
 753                 Inset * locking_inset = theLockingInset()->getLockingInset();
 754
 755                 if ((cursor.pos() - 1 >= 0) &&
 756                     cursor.par()->isInset(cursor.pos() - 1) &&
 757                     (cursor.par()->getInset(cursor.pos() - 1) ==
 758                      locking_inset))
 759                         text->setCursor(cursor,
 760                                         cursor.par(), cursor.pos() - 1);
 761                 LyXScreen::Cursor_Shape shape = LyXScreen::BAR_SHAPE;
 762                 LyXText * txt = getLyXText();
 763                 if (locking_inset->isTextInset() &&
 764                     locking_inset->lyxCode() != Inset::ERT_CODE &&
 765                     (txt->real_current_font.language() !=
 766                      buffer()->params.language
 767                      || txt->real_current_font.isVisibleRightToLeft()
 768                      != buffer()->params.language->RightToLeft()))
 769                         shape = (txt->real_current_font.isVisibleRightToLeft())
 770                                 ? LyXScreen::REVERSED_L_SHAPE
 771                                 : LyXScreen::L_SHAPE;
 772                 y += cursor.iy() + theLockingInset()->insetInInsetY();
 773                 screen().showManualCursor(text, x, y, asc, desc,
 774                                                   shape);
 775         }
 776 }
 777
 778
 779 void BufferView::hideLockedInsetCursor()
 780 {
 781         if (theLockingInset() && available()) {
 782                 screen().hideCursor();
 783         }
 784 }
 785
 786
 787 bool BufferView::fitLockedInsetCursor(int x, int y, int asc, int desc)
 788 {
 789         if (theLockingInset() && available()) {
 790                 y += text->cursor.iy() + theLockingInset()->insetInInsetY();
 791                 if (screen().fitManualCursor(this, text, x, y, asc, desc)) {
 792                         updateScrollbar();
 793                         return true;
 794                 }
 795         }
 796         return false;
 797 }
 798
 799
 800 int BufferView::unlockInset(UpdatableInset * inset)
 801 {
 802         if (!inset)
 803                 return 0;
 804         if (inset && theLockingInset() == inset) {
 805                 inset->insetUnlock(this);
 806                 theLockingInset(0);
 807                 // make sure we update the combo !
 808                 owner()->setLayout(getLyXText()->cursor.par()->layout()->name());
 809                 // Tell the paragraph dialog that we changed paragraph
 810                 dispatch(FuncRequest(LFUN_PARAGRAPH_UPDATE));
 811                 finishUndo();
 812                 return 0;
 813         } else if (inset && theLockingInset() &&
 814                    theLockingInset()->unlockInsetInInset(this, inset)) {
 815                 // Tell the paragraph dialog that we changed paragraph
 816                 dispatch(FuncRequest(LFUN_PARAGRAPH_UPDATE));
 817                 // owner inset has updated the layout combo
 818                 finishUndo();
 819                 return 0;
 820         }
 821         return 1;
 822 }
 823
 824
 825 void BufferView::lockedInsetStoreUndo(Undo::undo_kind kind)
 826 {
 827         if (!theLockingInset())
 828                 return; // shouldn't happen
 829         if (kind == Undo::EDIT) // in this case insets would not be stored!
 830                 kind = Undo::FINISH;
 831         setUndo(this, kind,
 832                 text->cursor.par(),
 833                 text->cursor.par()->next());
 834 }
 835
 836
 837 void BufferView::updateInset(Inset * inset)
 838 {
 839         pimpl_->updateInset(inset);
 840 }
 841
 842
 843 bool BufferView::ChangeInsets(Inset::Code code,
 844                               string const & from, string const & to)
 845 {
 846         bool need_update = false;
 847         LyXCursor cursor = text->cursor;
 848         LyXCursor tmpcursor = cursor;
 849         cursor.par(tmpcursor.par());
 850         cursor.pos(tmpcursor.pos());
 851
 852         ParIterator end = buffer()->par_iterator_end();
 853         for (ParIterator it = buffer()->par_iterator_begin();
 854              it != end; ++it) {
 855                 Paragraph * par = *it;
 856                 bool changed_inset = false;
 857                 for (InsetList::iterator it2 = par->insetlist.begin();
 858                      it2 != par->insetlist.end(); ++it2) {
 859                         if (it2.getInset()->lyxCode() == code) {
 860                                 InsetCommand * inset = static_cast<InsetCommand *>(it2.getInset());
 861                                 if (inset->getContents() == from) {
 862                                         inset->setContents(to);
 863                                         changed_inset = true;
 864                                 }
 865                         }
 866                 }
 867                 if (changed_inset) {
 868                         need_update = true;
 869
 870                         // FIXME
 871
 872                         // The test it.size()==1 was needed to prevent crashes.
 873                         // How to set the cursor corretly when it.size()>1 ??
 874                         if (it.size() == 1) {
 875                                 text->setCursorIntern(par, 0);
 876                                 text->redoParagraphs(text->cursor,
 877                                                      text->cursor.par()->next());
 878                                 text->fullRebreak();
 879                         }
 880                 }
 881         }
 882         text->setCursorIntern(cursor.par(), cursor.pos());
 883         return need_update;
 884 }
 885
 886
 887 bool BufferView::ChangeRefsIfUnique(string const & from, string const & to)
 888 {
 889         // Check if the label 'from' appears more than once
 890         vector<string> labels = buffer()->getLabelList();
 891
 892         if (lyx::count(labels.begin(), labels.end(), from) > 1)
 893                 return false;
 894
 895         return ChangeInsets(Inset::REF_CODE, from, to);
 896 }
 897
 898
 899 bool BufferView::ChangeCitationsIfUnique(string const & from, string const & to)
 900 {
 901         typedef pair<string, string> StringPair;
 902
 903         vector<StringPair> keys;
 904         buffer()->fillWithBibKeys(keys);
 905         if (count_if(keys.begin(), keys.end(),
 906                      lyx::equal_1st_in_pair<StringPair>(from))
 907             > 1)
 908                 return false;
 909
 910         return ChangeInsets(Inset::CITE_CODE, from, to);
 911 }
 912
 913
 914 UpdatableInset * BufferView::theLockingInset() const
 915 {
 916         // If NULL is not allowed we should put an Assert here. (Lgb)
 917         if (text)
 918                 return text->the_locking_inset;
 919         return 0;
 920 }
 921
 922
 923 void BufferView::theLockingInset(UpdatableInset * inset)
 924 {
 925         text->the_locking_inset = inset;
 926 }
 927
 928
 929 LyXText * BufferView::getLyXText() const
 930 {
 931         if (theLockingInset()) {
 932                 LyXText * txt = theLockingInset()->getLyXText(this, true);
 933                 if (txt)
 934                         return txt;
 935         }
 936         return text;
 937 }
 938
 939
 940 LyXText * BufferView::getParentText(Inset * inset) const
 941 {
 942         if (inset->owner()) {
 943                 LyXText * txt = inset->getLyXText(this);
 944                 inset = inset->owner();
 945                 while (inset && inset->getLyXText(this) == txt)
 946                         inset = inset->owner();
 947                 if (inset)
 948                         return inset->getLyXText(this);
 949         }
 950         return text;
 951 }
 952
 953
 954 Language const * BufferView::getParentLanguage(Inset * inset) const
 955 {
 956         LyXText * text = getParentText(inset);
 957         return text->cursor.par()->getFontSettings(buffer()->params,
 958                                                    text->cursor.pos()).language();
 959 }
 960
 961
 962 Encoding const * BufferView::getEncoding() const
 963 {
 964         LyXText * t = getLyXText();
 965         if (!t)
 966                 return 0;
 967
 968         LyXCursor const & c= t->cursor;
 969         LyXFont const font = c.par()->getFont(buffer()->params, c.pos());
 970         return font.language()->encoding();
 971 }
 972
 973
 974 void BufferView::haveSelection(bool sel)
 975 {
 976         pimpl_->workarea().haveSelection(sel);
 977 }
 978
 979
 980 int BufferView::workHeight() const
 981 {
 982         return pimpl_->workarea().workHeight();
 983 }