src/BufferView2.C

   1 // -*- C++ -*-
   2 /* This file is part of
   3  * ======================================================
   4  *
   5  *           LyX, The Document Processor
   6  *
   7  *           Copyright 1995 Matthias Ettrich
   8  *           Copyright 1995-2000 The LyX Team.
   9  *
  10  * ====================================================== */
  11
  12 #include <config.h>
  13
  14 #include <fstream>
  15 #include <algorithm>
  16
  17 #include "BufferView.h"
  18 #include "buffer.h"
  19 #include "lyxcursor.h"
  20 #include "lyxtext.h"
  21 #include "insets/inseterror.h"
  22 #include "insets/insetinfo.h"
  23 #include "insets/insetspecialchar.h"
  24 #include "LyXView.h"
  25 #include "bufferlist.h"
  26 #include "support/FileInfo.h"
  27 #include "lyxscreen.h"
  28 #include "support/filetools.h"
  29 #include "lyx_gui_misc.h"
  30 #include "LaTeX.h"
  31 #include "BufferView_pimpl.h"
  32 #include "insets/insetcommand.h" //ChangeRefs
  33 #include "support/lyxfunctional.h" //equal_1st_in_pair
  34 #include "language.h"
  35 #include "gettext.h"
  36
  37 extern BufferList bufferlist;
  38
  39 using std::pair;
  40 using std::endl;
  41 using std::ifstream;
  42 using std::vector;
  43 using std::find;
  44 using std::count;
  45 using std::count_if;
  46
  47 // Inserts a file into current document
  48 bool BufferView::insertLyXFile(string const & filen)
  49         //
  50         // Copyright CHT Software Service GmbH
  51         // Uwe C. Schroeder
  52         //
  53         // Insert a Lyxformat - file into current buffer
  54         //
  55         // Moved from lyx_cb.C (Lgb)
  56 {
  57         if (filen.empty()) return false;
  58
  59         string const fname = MakeAbsPath(filen);
  60
  61         // check if file exist
  62         FileInfo const fi(fname);
  63
  64         if (!fi.readable()) {
  65                 WriteAlert(_("Error!"),
  66                            _("Specified file is unreadable: "),
  67                            MakeDisplayPath(fname, 50));
  68                 return false;
  69         }
  70
  71         beforeChange(text);
  72
  73         ifstream ifs(fname.c_str());
  74         if (!ifs) {
  75                 WriteAlert(_("Error!"),
  76                            _("Cannot open specified file: "),
  77                            MakeDisplayPath(fname, 50));
  78                 return false;
  79         }
  80
  81         char const c = ifs.peek();
  82
  83         LyXLex lex(0, 0);
  84         lex.setStream(ifs);
  85
  86         bool res = true;
  87
  88         if (c == '#') {
  89                 lyxerr.debug() << "Will insert file with header" << endl;
  90                 res = buffer()->readFile(lex, text->cursor.par());
  91         } else {
  92                 lyxerr.debug() << "Will insert file without header" << endl;
  93                 res = buffer()->readLyXformat2(lex, text->cursor.par());
  94         }
  95
  96         resize();
  97         return res;
  98 }
  99
 100
 101 bool BufferView::removeAutoInsets()
 102 {
 103         LyXParagraph * par = buffer()->paragraph;
 104
 105         LyXCursor tmpcursor = text->cursor;
 106         LyXCursor cursor;
 107
 108         bool a = false;
 109
 110         while (par) {
 111                 // this has to be done before the delete
 112                 text->SetCursor(this, cursor, par, 0);
 113                 if (par->AutoDeleteInsets()){
 114                         a = true;
 115                         text->RedoParagraphs(this, cursor,
 116                                              cursor.par()->next());
 117                         text->FullRebreak(this);
 118                 }
 119                 par = par->next();
 120         }
 121
 122         // avoid forbidden cursor positions caused by error removing
 123         if (tmpcursor.pos() > tmpcursor.par()->size())
 124                 tmpcursor.pos(tmpcursor.par()->size());
 125
 126         text->SetCursorIntern(this, tmpcursor.par(), tmpcursor.pos());
 127
 128         return a;
 129 }
 130
 131
 132 void BufferView::insertErrors(TeXErrors & terr)
 133 {
 134         // Save the cursor position
 135         LyXCursor cursor = text->cursor;
 136
 137         for (TeXErrors::Errors::const_iterator cit = terr.begin();
 138              cit != terr.end();
 139              ++cit) {
 140                 string const desctext((*cit).error_desc);
 141                 string const errortext((*cit).error_text);
 142                 string const msgtxt = desctext + '\n' + errortext;
 143                 int const errorrow = (*cit).error_in_line;
 144
 145                 // Insert error string for row number
 146                 int tmpid = -1;
 147                 int tmppos = -1;
 148
 149                 if (buffer()->texrow.getIdFromRow(errorrow, tmpid, tmppos)) {
 150                         buffer()->texrow.increasePos(tmpid, tmppos);
 151                 }
 152
 153                 LyXParagraph * texrowpar = 0;
 154
 155                 if (tmpid == -1) {
 156                         texrowpar = text->FirstParagraph();
 157                         tmppos = 0;
 158                 } else {
 159                         texrowpar = text->GetParFromID(tmpid);
 160                 }
 161
 162                 if (texrowpar == 0)
 163                         continue;
 164
 165                 InsetError * new_inset = new InsetError(msgtxt);
 166                 text->SetCursorIntern(this, texrowpar, tmppos);
 167                 text->InsertInset(this, new_inset);
 168                 text->FullRebreak(this);
 169         }
 170         // Restore the cursor position
 171         text->SetCursorIntern(this, cursor.par(), cursor.pos());
 172 }
 173
 174
 175 void BufferView::setCursorFromRow(int row)
 176 {
 177         int tmpid = -1;
 178         int tmppos = -1;
 179
 180         buffer()->texrow.getIdFromRow(row, tmpid, tmppos);
 181
 182         LyXParagraph * texrowpar;
 183
 184         if (tmpid == -1) {
 185                 texrowpar = text->FirstParagraph();
 186                 tmppos = 0;
 187         } else {
 188                 texrowpar = text->GetParFromID(tmpid);
 189         }
 190         text->SetCursor(this, texrowpar, tmppos);
 191 }
 192
 193
 194 bool BufferView::insertInset(Inset * inset, string const & lout,
 195                              bool /*no_table*/)
 196 {
 197         // if we are in a locking inset we should try to insert the
 198         // inset there otherwise this is a illegal function now
 199         if (theLockingInset()) {
 200                 if (theLockingInset()->InsertInsetAllowed(inset))
 201                     return theLockingInset()->InsertInset(this, inset);
 202                 return false;
 203         }
 204
 205         // not quite sure if we want this...
 206         text->SetCursorParUndo(buffer());
 207         text->FreezeUndo();
 208
 209         beforeChange(text);
 210         if (!lout.empty()) {
 211                 update(text, BufferView::SELECT|BufferView::FITCUR);
 212                 text->BreakParagraph(this);
 213                 update(text, BufferView::SELECT|BufferView::FITCUR|BufferView::CHANGE);
 214
 215                 if (text->cursor.par()->size()) {
 216                         text->CursorLeft(this);
 217
 218                         text->BreakParagraph(this);
 219                         update(text, BufferView::SELECT|BufferView::FITCUR|BufferView::CHANGE);
 220                 }
 221
 222                 pair<bool, LyXTextClass::size_type> lres =
 223                         textclasslist.NumberOfLayout(buffer()->params
 224                                                      .textclass, lout);
 225                 LyXTextClass::size_type lay;
 226                 if (lres.first != false) {
 227                         // layout found
 228                         lay = lres.second;
 229                 } else {
 230                         // layout not fount using default "Standard" (0)
 231                         lay = 0;
 232                 }
 233
 234                 text->SetLayout(this, lay);
 235
 236                 text->SetParagraph(this, 0, 0,
 237                                    0, 0,
 238                                    VSpace(VSpace::NONE), VSpace(VSpace::NONE),
 239                                    LYX_ALIGN_LAYOUT,
 240                                    string(),
 241                                    0);
 242                 update(text, BufferView::SELECT|BufferView::FITCUR|BufferView::CHANGE);
 243
 244                 text->current_font.setLatex(LyXFont::OFF);
 245         }
 246
 247         text->InsertInset(this, inset);
 248         update(text, BufferView::SELECT|BufferView::FITCUR|BufferView::CHANGE);
 249
 250         text->UnFreezeUndo();
 251         return true;
 252 }
 253
 254
 255 // Open and lock an updatable inset
 256 bool BufferView::open_new_inset(UpdatableInset * new_inset, bool behind)
 257 {
 258         beforeChange(text);
 259         text->FinishUndo();
 260         if (!insertInset(new_inset)) {
 261                 delete new_inset;
 262                 return false;
 263         }
 264         if (behind) {
 265                 LyXFont & font = getLyXText()->real_current_font;
 266                 new_inset->Edit(this, new_inset->width(this, font), 0, 0);
 267         } else
 268                 new_inset->Edit(this, 0, 0, 0);
 269         return true;
 270 }
 271
 272 /* This is also a buffer property (ale) */
 273 // Not so sure about that. a goto Label function can not be buffer local, just
 274 // think how this will work in a multiwindo/buffer environment, all the
 275 // cursors in all the views showing this buffer will move. (Lgb)
 276 // OK, then no cursor action should be allowed in buffer. (ale)
 277 bool BufferView::gotoLabel(string const & label)
 278
 279 {
 280         for (Buffer::inset_iterator it = buffer()->inset_iterator_begin();
 281              it != buffer()->inset_iterator_end(); ++it) {
 282                 vector<string> labels = (*it)->getLabelList();
 283                 if (find(labels.begin(),labels.end(),label)
 284                      != labels.end()) {
 285                         beforeChange(text);
 286                         text->SetCursor(this, it.getPar(), it.getPos());
 287                         text->sel_cursor = text->cursor;
 288                         update(text, BufferView::SELECT|BufferView::FITCUR);
 289                         return true;
 290                 }
 291         }
 292         return false;
 293 }
 294
 295
 296 void BufferView::insertNote()
 297 {
 298         InsetInfo * new_inset = new InsetInfo();
 299         insertInset(new_inset);
 300         new_inset->Edit(this, 0, 0, 0);
 301 }
 302
 303
 304 void BufferView::menuUndo()
 305 {
 306         if (available()) {
 307                 owner()->message(_("Undo"));
 308                 hideCursor();
 309                 beforeChange(text);
 310                 update(text, BufferView::SELECT|BufferView::FITCUR);
 311                 if (!text->TextUndo(this))
 312                         owner()->message(_("No forther undo information"));
 313                 else
 314                         update(text, BufferView::SELECT|BufferView::FITCUR|BufferView::CHANGE);
 315                 setState();
 316         }
 317 }
 318
 319
 320 void BufferView::menuRedo()
 321 {
 322         if (theLockingInset()) {
 323                 owner()->message(_("Redo not yet supported in math mode"));
 324                 return;
 325         }
 326
 327         if (available()) {
 328                 owner()->message(_("Redo"));
 329                 hideCursor();
 330                 beforeChange(text);
 331                 update(text, BufferView::SELECT|BufferView::FITCUR);
 332                 if (!text->TextRedo(this))
 333                         owner()->message(_("No further redo information"));
 334                 else
 335                         update(text, BufferView::SELECT|BufferView::FITCUR|BufferView::CHANGE);
 336                 setState();
 337         }
 338 }
 339
 340
 341 void BufferView::hyphenationPoint()
 342 {
 343         if (available()) {
 344                 hideCursor();
 345                 update(text, BufferView::SELECT|BufferView::FITCUR);
 346                 InsetSpecialChar * new_inset =
 347                         new InsetSpecialChar(InsetSpecialChar::HYPHENATION);
 348                 insertInset(new_inset);
 349         }
 350 }
 351
 352
 353 void BufferView::ldots()
 354 {
 355         if (available())  {
 356                 hideCursor();
 357                 update(text, BufferView::SELECT|BufferView::FITCUR);
 358                 InsetSpecialChar * new_inset =
 359                         new InsetSpecialChar(InsetSpecialChar::LDOTS);
 360                 insertInset(new_inset);
 361         }
 362 }
 363
 364
 365 void BufferView::endOfSentenceDot()
 366 {
 367         if (available()) {
 368                 hideCursor();
 369                 update(text, BufferView::SELECT|BufferView::FITCUR);
 370                 InsetSpecialChar * new_inset =
 371                         new InsetSpecialChar(InsetSpecialChar::END_OF_SENTENCE);
 372                 insertInset(new_inset);
 373         }
 374 }
 375
 376
 377 void BufferView::menuSeparator()
 378 {
 379         if (available()) {
 380                 hideCursor();
 381                 update(text, BufferView::SELECT|BufferView::FITCUR);
 382                 InsetSpecialChar * new_inset =
 383                         new InsetSpecialChar(InsetSpecialChar::MENU_SEPARATOR);
 384                 insertInset(new_inset);
 385         }
 386 }
 387
 388
 389 void BufferView::newline()
 390 {
 391         if (available()) {
 392                 hideCursor();
 393                 update(text, BufferView::SELECT|BufferView::FITCUR);
 394                 text->InsertChar(this, LyXParagraph::META_NEWLINE);
 395                 update(text, BufferView::SELECT|BufferView::FITCUR|BufferView::CHANGE);
 396         }
 397 }
 398
 399
 400 void BufferView::protectedBlank(LyXText * lt)
 401 {
 402         if (available()) {
 403                 hideCursor();
 404                 update(lt, BufferView::SELECT|BufferView::FITCUR);
 405                 InsetSpecialChar * new_inset =
 406                         new InsetSpecialChar(InsetSpecialChar::PROTECTED_SEPARATOR);
 407                 if (!insertInset(new_inset))
 408                         delete new_inset;
 409                 else
 410                         updateInset(new_inset, true);
 411         }
 412 }
 413
 414
 415 void BufferView::hfill()
 416 {
 417         if (available()) {
 418                 hideCursor();
 419                 update(text, BufferView::SELECT|BufferView::FITCUR);
 420                 text->InsertChar(this, LyXParagraph::META_HFILL);
 421                 update(text, BufferView::SELECT|BufferView::FITCUR|BufferView::CHANGE);
 422         }
 423 }
 424
 425
 426 void BufferView::copyEnvironment()
 427 {
 428         if (available()) {
 429                 text->copyEnvironmentType();
 430                 // clear the selection, even if mark_set
 431                 toggleSelection();
 432                 text->ClearSelection(this);
 433                 update(text, BufferView::SELECT|BufferView::FITCUR);
 434                 owner()->message(_("Paragraph environment type copied"));
 435         }
 436 }
 437
 438
 439 void BufferView::pasteEnvironment()
 440 {
 441         if (available()) {
 442                 text->pasteEnvironmentType(this);
 443                 owner()->message(_("Paragraph environment type set"));
 444                 update(text, BufferView::SELECT|BufferView::FITCUR|BufferView::CHANGE);
 445         }
 446 }
 447
 448
 449 void BufferView::copy()
 450 {
 451         if (available()) {
 452                 text->CopySelection(this);
 453                 // clear the selection, even if mark_set
 454                 toggleSelection();
 455                 text->ClearSelection(this);
 456                 update(text, BufferView::SELECT|BufferView::FITCUR);
 457                 owner()->message(_("Copy"));
 458         }
 459 }
 460
 461 void BufferView::cut()
 462 {
 463         if (available()) {
 464                 hideCursor();
 465                 update(text, BufferView::SELECT|BufferView::FITCUR);
 466                 text->CutSelection(this);
 467                 update(text, BufferView::SELECT|BufferView::FITCUR|BufferView::CHANGE);
 468                 owner()->message(_("Cut"));
 469         }
 470 }
 471
 472
 473 void BufferView::paste()
 474 {
 475         if (!available()) return;
 476
 477         owner()->message(_("Paste"));
 478
 479         hideCursor();
 480         // clear the selection
 481         toggleSelection();
 482         text->ClearSelection(this);
 483         update(text, BufferView::SELECT|BufferView::FITCUR);
 484
 485         // paste
 486         text->PasteSelection(this);
 487         update(text, BufferView::SELECT|BufferView::FITCUR|BufferView::CHANGE);
 488
 489         // clear the selection
 490         toggleSelection();
 491         text->ClearSelection(this);
 492         update(text, BufferView::SELECT|BufferView::FITCUR);
 493 }
 494
 495
 496 void BufferView::gotoInset(std::vector<Inset::Code> const & codes,
 497                            bool same_content)
 498 {
 499         if (!available()) return;
 500
 501         hideCursor();
 502         beforeChange(text);
 503         update(text, BufferView::SELECT|BufferView::FITCUR);
 504
 505         string contents;
 506         if (same_content &&
 507             text->cursor.par()->GetChar(text->cursor.pos()) == LyXParagraph::META_INSET) {
 508                 Inset const * inset = text->cursor.par()->GetInset(text->cursor.pos());
 509                 if (find(codes.begin(), codes.end(), inset->LyxCode())
 510                     != codes.end())
 511                         contents =
 512                                 static_cast<InsetCommand const *>(inset)->getContents();
 513         }
 514
 515         if (!text->GotoNextInset(this, codes, contents)) {
 516                 if (text->cursor.pos()
 517                     || text->cursor.par() != text->FirstParagraph()) {
 518                                 LyXCursor tmp = text->cursor;
 519                                 text->cursor.par(text->FirstParagraph());
 520                                 text->cursor.pos(0);
 521                                 if (!text->GotoNextInset(this, codes, contents)) {
 522                                         text->cursor = tmp;
 523                                         owner()->message(_("No more insets"));
 524                                 }
 525                         } else {
 526                                 owner()->message(_("No more insets"));
 527                         }
 528         }
 529         update(text, BufferView::SELECT|BufferView::FITCUR);
 530         text->sel_cursor = text->cursor;
 531 }
 532
 533
 534 void BufferView::gotoInset(Inset::Code code, bool same_content)
 535 {
 536         gotoInset(vector<Inset::Code>(1, code), same_content);
 537 }
 538
 539
 540 void BufferView::insertCorrectQuote()
 541 {
 542         char c;
 543
 544         if (text->cursor.pos())
 545                 c = text->cursor.par()->GetChar(text->cursor.pos() - 1);
 546         else
 547                 c = ' ';
 548
 549         insertInset(new InsetQuotes(c, buffer()->params));
 550 }
 551
 552
 553 /* these functions are for the spellchecker */
 554 string const BufferView::nextWord(float & value)
 555 {
 556         if (!available()) {
 557                 value = 1;
 558                 return string();
 559         }
 560
 561         return text->SelectNextWord(this, value);
 562 }
 563
 564
 565 void BufferView::selectLastWord()
 566 {
 567         if (!available()) return;
 568
 569         hideCursor();
 570         beforeChange(text);
 571         text->SelectSelectedWord(this);
 572         toggleSelection(false);
 573         update(text, BufferView::SELECT|BufferView::FITCUR);
 574 }
 575
 576
 577 void BufferView::endOfSpellCheck()
 578 {
 579         if (!available()) return;
 580
 581         hideCursor();
 582         beforeChange(text);
 583         text->SelectSelectedWord(this);
 584         text->ClearSelection(this);
 585         update(text, BufferView::SELECT|BufferView::FITCUR);
 586 }
 587
 588
 589 void BufferView::replaceWord(string const & replacestring)
 590 {
 591         if (!available()) return;
 592
 593         hideCursor();
 594         update(text, BufferView::SELECT|BufferView::FITCUR);
 595
 596         /* clear the selection (if there is any) */
 597         toggleSelection(false);
 598         update(text, BufferView::SELECT|BufferView::FITCUR);
 599
 600         /* clear the selection (if there is any) */
 601         toggleSelection(false);
 602         text->ReplaceSelectionWithString(this, replacestring);
 603
 604         text->SetSelectionOverString(this, replacestring);
 605
 606         // Go back so that replacement string is also spellchecked
 607         for (string::size_type i = 0; i < replacestring.length() + 1; ++i) {
 608                 text->CursorLeft(this);
 609         }
 610         update(text, BufferView::SELECT|BufferView::FITCUR|BufferView::CHANGE);
 611 }
 612 // End of spellchecker stuff
 613
 614
 615 bool BufferView::lockInset(UpdatableInset * inset)
 616 {
 617         if (!theLockingInset() && inset) {
 618                 theLockingInset(inset);
 619                 return true;
 620         } else if (inset) {
 621             return theLockingInset()->LockInsetInInset(this, inset);
 622         }
 623         return false;
 624 }
 625
 626
 627 void BufferView::showLockedInsetCursor(int x, int y, int asc, int desc)
 628 {
 629         if (theLockingInset() && available()) {
 630                 LyXCursor cursor = text->cursor;
 631                 if ((cursor.pos() - 1 >= 0) &&
 632                     (cursor.par()->GetChar(cursor.pos() - 1) ==
 633                      LyXParagraph::META_INSET) &&
 634                     (cursor.par()->GetInset(cursor.pos() - 1) ==
 635                      theLockingInset()->GetLockingInset()))
 636                         text->SetCursor(this, cursor,
 637                                         cursor.par(), cursor.pos() - 1);
 638                 LyXScreen::Cursor_Shape shape = LyXScreen::BAR_SHAPE;
 639                 LyXText * txt = getLyXText();
 640                 if (theLockingInset()->GetLockingInset()->LyxCode() ==
 641                     Inset::TEXT_CODE &&
 642                     (txt->real_current_font.language() !=
 643                      buffer()->params.language
 644                      || txt->real_current_font.isVisibleRightToLeft()
 645                      != buffer()->params.language->RightToLeft()))
 646                         shape = (txt->real_current_font.isVisibleRightToLeft())
 647                                 ? LyXScreen::REVERSED_L_SHAPE
 648                                 : LyXScreen::L_SHAPE;
 649                 y += cursor.y() + theLockingInset()->InsetInInsetY();
 650                 pimpl_->screen_->ShowManualCursor(text, x, y, asc, desc,
 651                                                   shape);
 652         }
 653 }
 654
 655
 656 void BufferView::hideLockedInsetCursor()
 657 {
 658         if (theLockingInset() && available()) {
 659                 pimpl_->screen_->HideCursor();
 660         }
 661 }
 662
 663
 664 void BufferView::fitLockedInsetCursor(int x, int y, int asc, int desc)
 665 {
 666         if (theLockingInset() && available()) {
 667                 y += text->cursor.y() + theLockingInset()->InsetInInsetY();
 668                 if (pimpl_->screen_->FitManualCursor(text, this, x, y, asc, desc))
 669                         updateScrollbar();
 670         }
 671 }
 672
 673
 674 int BufferView::unlockInset(UpdatableInset * inset)
 675 {
 676         if (inset && theLockingInset() == inset) {
 677                 inset->InsetUnlock(this);
 678                 theLockingInset(0);
 679                 text->FinishUndo();
 680                 return 0;
 681         } else if (inset && theLockingInset() &&
 682                    theLockingInset()->UnlockInsetInInset(this, inset)) {
 683                 text->FinishUndo();
 684                 return 0;
 685         }
 686         return bufferlist.unlockInset(inset);
 687 }
 688
 689
 690 void BufferView::lockedInsetStoreUndo(Undo::undo_kind kind)
 691 {
 692         if (!theLockingInset())
 693                 return; // shouldn't happen
 694         if (kind == Undo::EDIT) // in this case insets would not be stored!
 695                 kind = Undo::FINISH;
 696         text->SetUndo(buffer(), kind,
 697                       text->cursor.par()->previous(),
 698                       text->cursor.par()->next());
 699 }
 700
 701
 702 void BufferView::updateInset(Inset * inset, bool mark_dirty)
 703 {
 704         if (!inset)
 705                 return;
 706
 707         // first check for locking insets
 708         if (theLockingInset()) {
 709                 if (theLockingInset() == inset) {
 710                         if (text->UpdateInset(this, inset)) {
 711                                 update();
 712                                 if (mark_dirty) {
 713                                         buffer()->markDirty();
 714                                 }
 715                                 updateScrollbar();
 716                                 return;
 717                         }
 718                 } else if (theLockingInset()->UpdateInsetInInset(this,inset)) {
 719                         if (text->UpdateInset(this, theLockingInset())) {
 720                                 update();
 721                                 if (mark_dirty){
 722                                         buffer()->markDirty();
 723                                 }
 724                                 updateScrollbar();
 725                                 return;
 726                         }
 727                 }
 728         }
 729
 730         // then check the current buffer
 731         if (available()) {
 732                 hideCursor();
 733                 update(text, BufferView::UPDATE);
 734                 if (text->UpdateInset(this, inset)) {
 735                         if (mark_dirty)
 736                                 update(text, BufferView::SELECT|BufferView::FITCUR|BufferView::CHANGE);
 737                         else
 738                                 update(text, SELECT);
 739                         return;
 740                 }
 741         }
 742 }
 743
 744
 745 bool BufferView::ChangeInsets(Inset::Code code,
 746                               string const & from, string const & to)
 747 {
 748         bool flag = false;
 749         LyXParagraph * par = buffer()->paragraph;
 750         LyXCursor cursor = text->cursor;
 751         LyXCursor tmpcursor = cursor;
 752         cursor.par(tmpcursor.par());
 753         cursor.pos(tmpcursor.pos());
 754
 755         while (par) {
 756                 bool flag2 = false;
 757                 for (LyXParagraph::inset_iterator it = par->inset_iterator_begin();
 758                      it != par->inset_iterator_end(); ++it) {
 759                         if ((*it)->LyxCode() == code) {
 760                                 InsetCommand * inset = static_cast<InsetCommand *>(*it);
 761                                 if (inset->getContents() == from) {
 762                                         inset->setContents(to);
 763                                         flag2 = true;
 764                                 }
 765                         }
 766                 }
 767                 if (flag2) {
 768                         flag = true;
 769                         // this is possible now, since SetCursor takes
 770                         // care about footnotes
 771                         text->SetCursorIntern(this, par, 0);
 772                         text->RedoParagraphs(this, text->cursor,
 773                                              text->cursor.par()->next());
 774                         text->FullRebreak(this);
 775                 }
 776                 par = par->next();
 777         }
 778         text->SetCursorIntern(this, cursor.par(), cursor.pos());
 779         return flag;
 780 }
 781
 782
 783 bool BufferView::ChangeRefsIfUnique(string const & from, string const & to)
 784 {
 785         // Check if the label 'from' appears more than once
 786         vector<string> labels = buffer()->getLabelList();
 787         if (count(labels.begin(), labels.end(), from) > 1)
 788                 return false;
 789
 790         return ChangeInsets(Inset::REF_CODE, from, to);
 791 }
 792
 793
 794 bool BufferView::ChangeCitationsIfUnique(string const & from, string const & to)
 795 {
 796
 797         vector<pair<string,string> > keys = buffer()->getBibkeyList();
 798         if (count_if(keys.begin(), keys.end(),
 799                      lyx::equal_1st_in_pair<string,string>(from))
 800             > 1)
 801                 return false;
 802
 803         return ChangeInsets(Inset::CITE_CODE, from, to);
 804 }
 805
 806 UpdatableInset * BufferView::theLockingInset() const
 807 {
 808         // If NULL is not allowed we should put an Assert here. (Lgb)
 809         if (text)
 810                 return text->the_locking_inset;
 811         return 0;
 812 }
 813
 814
 815 void BufferView::theLockingInset(UpdatableInset * inset)
 816 {
 817         text->the_locking_inset = inset;
 818 }
 819
 820
 821 LyXText * BufferView::getLyXText() const
 822 {
 823         if (theLockingInset()) {
 824                 LyXText * txt = theLockingInset()->getLyXText(this, true);
 825                 if (txt)
 826                         return txt;
 827         }
 828         return text;
 829 }
 830
 831
 832 LyXText * BufferView::getParentText(Inset * inset) const
 833 {
 834         if (inset->owner()) {
 835                 LyXText * txt = inset->getLyXText(this);
 836                 inset = inset->owner();
 837                 while (inset && inset->getLyXText(this) == txt)
 838                         inset = inset->owner();
 839                 if (inset)
 840                         return inset->getLyXText(this);
 841         }
 842         return text;
 843 }
 844
 845
 846 Language const * BufferView::getParentLanguage(Inset * inset) const
 847 {
 848         LyXText * text = getParentText(inset);
 849         return text->cursor.par()->GetFontSettings(buffer()->params,
 850                                                    text->cursor.pos()).language();
 851 }