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
  47 #include <fstream>
  48
  49 extern BufferList bufferlist;
  50
  51 using lyx::pos_type;
  52
  53 using std::pair;
  54 using std::endl;
  55 using std::ifstream;
  56 using std::vector;
  57 using std::find;
  58 using std::count_if;
  59
  60
  61 BufferView::BufferView(LyXView * owner, int xpos, int ypos,
  62                        int width, int height)
  63         : pimpl_(new Pimpl(this, owner, xpos, ypos, width, height))
  64 {
  65         text = 0;
  66 }
  67
  68
  69 BufferView::~BufferView()
  70 {
  71         delete text;
  72         delete pimpl_;
  73 }
  74
  75
  76 Buffer * BufferView::buffer() const
  77 {
  78         return pimpl_->buffer_;
  79 }
  80
  81
  82 LyXScreen & BufferView::screen() const
  83 {
  84         return pimpl_->screen();
  85 }
  86
  87
  88 LyXView * BufferView::owner() const
  89 {
  90         return pimpl_->owner_;
  91 }
  92
  93
  94 Painter & BufferView::painter() const
  95 {
  96         return pimpl_->painter();
  97 }
  98
  99
 100 void BufferView::buffer(Buffer * b)
 101 {
 102         pimpl_->buffer(b);
 103 }
 104
 105
 106 void BufferView::reload()
 107 {
 108         string const fn = buffer()->fileName();
 109         if (bufferlist.close(buffer()))
 110                 buffer(bufferlist.loadLyXFile(fn));
 111 }
 112
 113
 114 void BufferView::resize()
 115 {
 116         if (pimpl_->buffer_) {
 117                 pimpl_->resizeCurrentBuffer();
 118         }
 119 }
 120
 121
 122 void BufferView::repaint()
 123 {
 124         pimpl_->repaint();
 125 }
 126
 127
 128 bool BufferView::fitCursor()
 129 {
 130         return pimpl_->fitCursor();
 131 }
 132
 133
 134 void BufferView::update()
 135 {
 136         pimpl_->update();
 137 }
 138
 139
 140 void BufferView::updateScrollbar()
 141 {
 142         pimpl_->updateScrollbar();
 143 }
 144
 145
 146 void BufferView::scrollDocView(int value)
 147 {
 148         pimpl_->scrollDocView(value);
 149 }
 150
 151
 152 void BufferView::redoCurrentBuffer()
 153 {
 154         pimpl_->redoCurrentBuffer();
 155 }
 156
 157
 158 bool BufferView::available() const
 159 {
 160         return pimpl_->available();
 161 }
 162
 163
 164 Change const BufferView::getCurrentChange()
 165 {
 166         return pimpl_->getCurrentChange();
 167 }
 168
 169
 170 void BufferView::beforeChange(LyXText * text)
 171 {
 172         pimpl_->beforeChange(text);
 173 }
 174
 175
 176 void BufferView::savePosition(unsigned int i)
 177 {
 178         pimpl_->savePosition(i);
 179 }
 180
 181
 182 void BufferView::restorePosition(unsigned int i)
 183 {
 184         pimpl_->restorePosition(i);
 185 }
 186
 187
 188 bool BufferView::isSavedPosition(unsigned int i)
 189 {
 190         return pimpl_->isSavedPosition(i);
 191 }
 192
 193
 194 void BufferView::update(LyXText * text, UpdateCodes f)
 195 {
 196         pimpl_->update(text, f);
 197 }
 198
 199
 200 void BufferView::update(UpdateCodes f)
 201 {
 202         pimpl_->update(f);
 203 }
 204
 205
 206 void BufferView::switchKeyMap()
 207 {
 208         pimpl_->switchKeyMap();
 209 }
 210
 211
 212 void BufferView::insetUnlock()
 213 {
 214         pimpl_->insetUnlock();
 215 }
 216
 217
 218 int BufferView::workWidth() const
 219 {
 220         return pimpl_->workarea().workWidth();
 221 }
 222
 223
 224 void BufferView::showCursor()
 225 {
 226         pimpl_->showCursor();
 227 }
 228
 229
 230 void BufferView::hideCursor()
 231 {
 232         pimpl_->hideCursor();
 233 }
 234
 235
 236 void BufferView::toggleSelection(bool b)
 237 {
 238         pimpl_->toggleSelection(b);
 239 }
 240
 241
 242 void BufferView::toggleToggle()
 243 {
 244         pimpl_->toggleToggle();
 245 }
 246
 247
 248 void BufferView::center()
 249 {
 250         pimpl_->center();
 251 }
 252
 253
 254 string const BufferView::getClipboard() const
 255 {
 256         return pimpl_->workarea().getClipboard();
 257 }
 258
 259
 260 void BufferView::stuffClipboard(string const & stuff) const
 261 {
 262         pimpl_->stuffClipboard(stuff);
 263 }
 264
 265
 266 BufferView::UpdateCodes operator|(BufferView::UpdateCodes uc1,
 267                                   BufferView::UpdateCodes uc2)
 268 {
 269         return static_cast<BufferView::UpdateCodes>
 270                 (static_cast<int>(uc1) | static_cast<int>(uc2));
 271 }
 272
 273
 274 bool BufferView::dispatch(FuncRequest const & ev)
 275 {
 276         return pimpl_->dispatch(ev);
 277 }
 278
 279
 280 void BufferView::scroll(int lines)
 281 {
 282         pimpl_->scroll(lines);
 283 }
 284
 285
 286 // Inserts a file into current document
 287 bool BufferView::insertLyXFile(string const & filen)
 288         //
 289         // Copyright CHT Software Service GmbH
 290         // Uwe C. Schroeder
 291         //
 292         // Insert a LyXformat - file into current buffer
 293         //
 294         // Moved from lyx_cb.C (Lgb)
 295 {
 296         if (filen.empty())
 297                 return false;
 298
 299         string const fname = MakeAbsPath(filen);
 300
 301         // check if file exist
 302         FileInfo const fi(fname);
 303
 304         if (!fi.readable()) {
 305                 Alert::alert(_("Error!"),
 306                            _("Specified file is unreadable: "),
 307                            MakeDisplayPath(fname, 50));
 308                 return false;
 309         }
 310
 311         beforeChange(text);
 312
 313         ifstream ifs(fname.c_str());
 314         if (!ifs) {
 315                 Alert::err_alert(_("Error! Cannot open specified file:"),
 316                            MakeDisplayPath(fname, 50));
 317                 return false;
 318         }
 319
 320         int const c = ifs.peek();
 321
 322         LyXLex lex(0, 0);
 323         lex.setStream(ifs);
 324
 325         bool res = true;
 326
 327         if (c == '#') {
 328                 // FIXME: huh ? No we won't !
 329                 lyxerr[Debug::INFO] << "Will insert file with header" << endl;
 330                 res = buffer()->readFile(lex, fname, ParagraphList::iterator(text->cursor.par()));
 331         } else {
 332                 lyxerr[Debug::INFO] << "Will insert file without header"
 333                                     << endl;
 334                 res = buffer()->readBody(lex, ParagraphList::iterator(text->cursor.par()));
 335         }
 336
 337         resize();
 338         return res;
 339 }
 340
 341
 342 bool BufferView::removeAutoInsets()
 343 {
 344         // keep track of which pos and par the cursor was on
 345         Paragraph * cursor_par = text->cursor.par();
 346         Paragraph * cursor_par_prev = cursor_par ? cursor_par->previous() : 0;
 347         Paragraph * cursor_par_next = cursor_par ? cursor_par->next() : 0;
 348         pos_type cursor_pos = text->cursor.pos();
 349
 350         bool found = false;
 351
 352         // Trap the deletion of the paragraph the cursor is in.
 353         // Iterate until we find a paragraph that won't be immediately deleted.
 354         // In reality this should mean we only execute the body of the while
 355         // loop once at most.  However for safety we iterate rather than just
 356         // make this an if () conditional.
 357         while ((cursor_par_prev || cursor_par_next)
 358                && text->setCursor(
 359                                   cursor_par_prev ? cursor_par_prev : cursor_par_next,
 360                                   0)) {
 361                 // We just removed cursor_par so have to fix the "cursor"
 362                 if (cursor_par_prev) {
 363                         // '.' = cursor_par
 364                         //  a -> a.
 365                         // .
 366                         cursor_par = cursor_par_prev;
 367                         cursor_pos = cursor_par->size();
 368                 } else {
 369                         // .  -> .a
 370                         //  a
 371                         cursor_par = cursor_par_next;
 372                         cursor_pos = 0;
 373                 }
 374                 cursor_par_prev = cursor_par->previous();
 375                 cursor_par_next = cursor_par->next();
 376         }
 377
 378         // Iterate through the paragraphs removing autoDelete insets as we go.
 379         // If the paragraph ends up empty after all the autoDelete insets are
 380         // removed that paragraph will be removed by the next setCursor() call.
 381         ParIterator it = buffer()->par_iterator_begin();
 382         ParIterator end = buffer()->par_iterator_end();
 383         for (; it != end; ++it) {
 384                 Paragraph * par = *it;
 385                 Paragraph * par_prev = par ? par->previous() : 0;
 386                 bool removed = false;
 387
 388                 if (text->setCursor(par, 0)
 389                     && cursor_par == par_prev) {
 390                         // The previous setCursor line was deleted and that
 391                         // was the cursor_par line.  This can only happen if an
 392                         // error box was the sole item on cursor_par.
 393                         // It is possible for cursor_par_prev to be stray if
 394                         // the line it pointed to only had a error box on it
 395                         // so we have to set it to a known correct value.
 396                         // This is often the same value it already had.
 397                         cursor_par_prev = par->previous();
 398                         if (cursor_par_prev) {
 399                                 // '|' = par, '.' = cursor_par, 'E' = error box
 400                                 // First step below may occur before while{}
 401                                 //  a    |a      a     a     a.
 402                                 //  E -> .E -> |.E -> .  -> |b
 403                                 // .      b      b    |b
 404                                 //  b
 405                                 cursor_par = cursor_par_prev;
 406                                 cursor_pos = cursor_par_prev->size();
 407                                 cursor_par_prev = cursor_par->previous();
 408                                 // cursor_par_next remains the same
 409                         } else if (cursor_par_next) {
 410                                 // First step below may occur before while{}
 411                                 // .
 412                                 //  E -> |.E -> |.  -> . -> .|a
 413                                 //  a      a      a    |a
 414                                 cursor_par = cursor_par_next;
 415                                 cursor_pos = 0;
 416                                 // cursor_par_prev remains unset
 417                                 cursor_par_next = cursor_par->next();
 418                         } else {
 419                                 // I can't find a way to trigger this
 420                                 // so it should be unreachable code
 421                                 // unless the buffer is corrupted.
 422                                 lyxerr << "BufferView::removeAutoInsets() is bad\n";
 423                         }
 424                 }
 425
 426                 InsetList::iterator pit = par->insetlist.begin();
 427                 InsetList::iterator pend = par->insetlist.end();
 428
 429                 while (pit != pend) {
 430                         if (pit.getInset()->autoDelete()) {
 431                                 removed = true;
 432                                 pos_type const pos = pit.getPos();
 433
 434                                 par->erase(pos);
 435                                 // We just invalidated par's inset iterators so
 436                                 // we get the next valid iterator position
 437                                 pit = par->insetlist.insetIterator(pos);
 438                                 // and ensure we have a valid end iterator.
 439                                 pend = par->insetlist.end();
 440
 441                                 if (cursor_par == par) {
 442                                         // update the saved cursor position
 443                                         if (cursor_pos > pos)
 444                                                 --cursor_pos;
 445                                 }
 446                         } else {
 447                                 ++pit;
 448                         }
 449                 }
 450                 if (removed) {
 451                         found = true;
 452                         text->redoParagraph();
 453                 }
 454         }
 455
 456         // It is possible that the last line is empty if it was cursor_par
 457         // and/or only had an error inset on it.  So we set the cursor to the
 458         // start of the doc to force its removal and ensure a valid saved cursor
 459         if (text->setCursor(text->ownerParagraph(), 0)
 460             && 0 == cursor_par_next) {
 461                 cursor_par = cursor_par_prev;
 462                 cursor_pos = cursor_par->size();
 463         } else if (cursor_pos > cursor_par->size()) {
 464                 // Some C-Enter lines were removed by the setCursor call which
 465                 // then invalidated cursor_pos. It could still be "wrong" because
 466                 // the cursor may appear to have jumped but since we collapsed
 467                 // some C-Enter lines this should be a reasonable compromise.
 468                 cursor_pos = cursor_par->size();
 469         }
 470
 471         // restore the original cursor in its corrected location.
 472         text->setCursorIntern(cursor_par, cursor_pos);
 473
 474         return found;
 475 }
 476
 477
 478 void BufferView::insertErrors(TeXErrors & terr)
 479 {
 480         // Save the cursor position
 481         LyXCursor cursor = text->cursor;
 482
 483         TeXErrors::Errors::const_iterator cit = terr.begin();
 484         TeXErrors::Errors::const_iterator end = terr.end();
 485         for (; cit != end; ++cit) {
 486                 string const desctext(cit->error_desc);
 487                 string const errortext(cit->error_text);
 488                 string const msgtxt = desctext + '\n' + errortext;
 489                 int const errorrow = cit->error_in_line;
 490
 491                 // Insert error string for row number
 492                 int tmpid = -1;
 493                 int tmppos = -1;
 494
 495                 if (buffer()->texrow.getIdFromRow(errorrow, tmpid, tmppos)) {
 496                         buffer()->texrow.increasePos(tmpid, tmppos);
 497                 }
 498
 499                 Paragraph * texrowpar = 0;
 500
 501                 if (tmpid == -1) {
 502                         texrowpar = text->ownerParagraph();
 503                         tmppos = 0;
 504                 } else {
 505                         texrowpar = buffer()->getParFromID(tmpid);
 506                 }
 507
 508                 if (texrowpar == 0)
 509                         continue;
 510
 511                 freezeUndo();
 512                 InsetError * new_inset = new InsetError(msgtxt);
 513                 text->setCursorIntern(texrowpar, tmppos);
 514                 text->insertInset(new_inset);
 515                 text->fullRebreak();
 516                 unFreezeUndo();
 517         }
 518         // Restore the cursor position
 519         text->setCursorIntern(cursor.par(), cursor.pos());
 520 }
 521
 522
 523 void BufferView::setCursorFromRow(int row)
 524 {
 525         int tmpid = -1;
 526         int tmppos = -1;
 527
 528         buffer()->texrow.getIdFromRow(row, tmpid, tmppos);
 529
 530         Paragraph * texrowpar;
 531
 532         if (tmpid == -1) {
 533                 texrowpar = text->ownerParagraph();
 534                 tmppos = 0;
 535         } else {
 536                 texrowpar = buffer()->getParFromID(tmpid);
 537         }
 538         text->setCursor(texrowpar, tmppos);
 539 }
 540
 541
 542 bool BufferView::insertInset(Inset * inset, string const & lout)
 543 {
 544         return pimpl_->insertInset(inset, lout);
 545 }
 546
 547
 548 // This is also a buffer property (ale)
 549 // Not so sure about that. a goto Label function can not be buffer local, just
 550 // think how this will work in a multiwindow/buffer environment, all the
 551 // cursors in all the views showing this buffer will move. (Lgb)
 552 // OK, then no cursor action should be allowed in buffer. (ale)
 553 bool BufferView::gotoLabel(string const & label)
 554 {
 555         for (Buffer::inset_iterator it = buffer()->inset_iterator_begin();
 556              it != buffer()->inset_iterator_end(); ++it) {
 557                 vector<string> labels = it->getLabelList();
 558                 if (find(labels.begin(),labels.end(),label)
 559                      != labels.end()) {
 560                         beforeChange(text);
 561                         text->setCursor(it.getPar(), it.getPos());
 562                         text->selection.cursor = text->cursor;
 563                         update(text, BufferView::SELECT);
 564                         return true;
 565                 }
 566         }
 567         return false;
 568 }
 569
 570
 571 void BufferView::undo()
 572 {
 573         if (!available())
 574                 return;
 575
 576         owner()->message(_("Undo"));
 577         hideCursor();
 578         beforeChange(text);
 579         update(text, BufferView::SELECT);
 580         if (!textUndo(this))
 581                 owner()->message(_("No further undo information"));
 582         else
 583                 update(text, BufferView::SELECT);
 584         switchKeyMap();
 585 }
 586
 587
 588 void BufferView::redo()
 589 {
 590         if (!available())
 591                 return;
 592
 593         owner()->message(_("Redo"));
 594         hideCursor();
 595         beforeChange(text);
 596         update(text, BufferView::SELECT);
 597         if (!textRedo(this))
 598                 owner()->message(_("No further redo information"));
 599         else
 600                 update(text, BufferView::SELECT);
 601         switchKeyMap();
 602 }
 603
 604
 605 void BufferView::copyEnvironment()
 606 {
 607         if (available()) {
 608                 text->copyEnvironmentType();
 609                 owner()->message(_("Paragraph environment type copied"));
 610         }
 611 }
 612
 613
 614 void BufferView::pasteEnvironment()
 615 {
 616         if (available()) {
 617                 text->pasteEnvironmentType();
 618                 owner()->message(_("Paragraph environment type set"));
 619                 update(text, BufferView::SELECT);
 620         }
 621 }
 622
 623
 624 // these functions are for the spellchecker
 625 WordLangTuple const BufferView::nextWord(float & value)
 626 {
 627         if (!available()) {
 628                 value = 1;
 629                 return WordLangTuple();
 630         }
 631
 632         return text->selectNextWordToSpellcheck(value);
 633 }
 634
 635
 636 void BufferView::selectLastWord()
 637 {
 638         if (!available())
 639                 return;
 640
 641         LyXCursor cur = text->selection.cursor;
 642         hideCursor();
 643         beforeChange(text);
 644         text->selection.cursor = cur;
 645         text->selectSelectedWord();
 646         toggleSelection(false);
 647         update(text, BufferView::SELECT);
 648 }
 649
 650
 651 void BufferView::endOfSpellCheck()
 652 {
 653         if (!available()) return;
 654
 655         hideCursor();
 656         beforeChange(text);
 657         text->selectSelectedWord();
 658         text->clearSelection();
 659         update(text, BufferView::SELECT);
 660 }
 661
 662
 663 void BufferView::replaceWord(string const & replacestring)
 664 {
 665         if (!available())
 666                 return;
 667
 668         LyXText * tt = getLyXText();
 669         hideCursor();
 670         update(tt, BufferView::SELECT);
 671
 672         // clear the selection (if there is any)
 673         toggleSelection(false);
 674         update(tt, BufferView::SELECT);
 675
 676         // clear the selection (if there is any)
 677         toggleSelection(false);
 678         tt->replaceSelectionWithString(replacestring);
 679
 680         tt->setSelectionRange(replacestring.length());
 681
 682         // Go back so that replacement string is also spellchecked
 683         for (string::size_type i = 0; i < replacestring.length() + 1; ++i) {
 684                 tt->cursorLeft(this);
 685         }
 686         update(tt, BufferView::SELECT);
 687
 688         // FIXME: should be done through LFUN
 689         buffer()->markDirty();
 690         fitCursor();
 691 }
 692 // End of spellchecker stuff
 693
 694
 695 bool BufferView::lockInset(UpdatableInset * inset)
 696 {
 697         if (!inset)
 698                 return false;
 699         // don't relock if we're already locked
 700         if (theLockingInset() == inset)
 701                 return true;
 702         if (!theLockingInset()) {
 703                 // first check if it's the inset under the cursor we want lock
 704                 // should be most of the time
 705                 char const c = text->cursor.par()->getChar(text->cursor.pos());
 706                 if (c == Paragraph::META_INSET) {
 707                         Inset * in = text->cursor.par()->getInset(text->cursor.pos());
 708                         if (inset == in) {
 709                                 theLockingInset(inset);
 710                                 return true;
 711                         }
 712                 }
 713                 // Then do a deep look of the inset and lock the right one
 714                 int const id = inset->id();
 715                 ParagraphList::iterator pit = buffer()->paragraphs.begin();
 716                 ParagraphList::iterator pend = buffer()->paragraphs.end();
 717                 for (; pit != pend; ++pit) {
 718                         InsetList::iterator it = pit->insetlist.begin();
 719                         InsetList::iterator end = pit->insetlist.end();
 720                         for (; it != end; ++it) {
 721                                 if (it.getInset() == inset) {
 722                                         text->setCursorIntern(&*pit, it.getPos());
 723                                         theLockingInset(inset);
 724                                         return true;
 725                                 }
 726                                 if (it.getInset()->getInsetFromID(id)) {
 727                                         text->setCursorIntern(&*pit, it.getPos());
 728                                         it.getInset()->edit(this);
 729                                         return theLockingInset()->lockInsetInInset(this, inset);
 730                                 }
 731                         }
 732                 }
 733                 return false;
 734         }
 735         return theLockingInset()->lockInsetInInset(this, inset);
 736 }
 737
 738
 739 void BufferView::showLockedInsetCursor(int x, int y, int asc, int desc)
 740 {
 741         if (available() && theLockingInset() && !theLockingInset()->nodraw()) {
 742                 LyXCursor cursor = text->cursor;
 743                 Inset * locking_inset = theLockingInset()->getLockingInset();
 744
 745                 if ((cursor.pos() - 1 >= 0) &&
 746                     cursor.par()->isInset(cursor.pos() - 1) &&
 747                     (cursor.par()->getInset(cursor.pos() - 1) ==
 748                      locking_inset))
 749                         text->setCursor(cursor,
 750                                         cursor.par(), cursor.pos() - 1);
 751                 LyXScreen::Cursor_Shape shape = LyXScreen::BAR_SHAPE;
 752                 LyXText * txt = getLyXText();
 753                 if (locking_inset->isTextInset() &&
 754                     locking_inset->lyxCode() != Inset::ERT_CODE &&
 755                     (txt->real_current_font.language() !=
 756                      buffer()->params.language
 757                      || txt->real_current_font.isVisibleRightToLeft()
 758                      != buffer()->params.language->RightToLeft()))
 759                         shape = (txt->real_current_font.isVisibleRightToLeft())
 760                                 ? LyXScreen::REVERSED_L_SHAPE
 761                                 : LyXScreen::L_SHAPE;
 762                 y += cursor.iy() + theLockingInset()->insetInInsetY();
 763                 screen().showManualCursor(text, x, y, asc, desc,
 764                                                   shape);
 765         }
 766 }
 767
 768
 769 void BufferView::hideLockedInsetCursor()
 770 {
 771         if (theLockingInset() && available()) {
 772                 screen().hideCursor();
 773         }
 774 }
 775
 776
 777 bool BufferView::fitLockedInsetCursor(int x, int y, int asc, int desc)
 778 {
 779         if (theLockingInset() && available()) {
 780                 y += text->cursor.iy() + theLockingInset()->insetInInsetY();
 781                 if (screen().fitManualCursor(this, text, x, y, asc, desc)) {
 782                         updateScrollbar();
 783                         return true;
 784                 }
 785         }
 786         return false;
 787 }
 788
 789
 790 int BufferView::unlockInset(UpdatableInset * inset)
 791 {
 792         if (!inset)
 793                 return 0;
 794         if (inset && theLockingInset() == inset) {
 795                 inset->insetUnlock(this);
 796                 theLockingInset(0);
 797                 // make sure we update the combo !
 798                 owner()->setLayout(getLyXText()->cursor.par()->layout()->name());
 799                 // Tell the paragraph dialog that we changed paragraph
 800                 dispatch(FuncRequest(LFUN_PARAGRAPH_UPDATE));
 801                 finishUndo();
 802                 return 0;
 803         } else if (inset && theLockingInset() &&
 804                    theLockingInset()->unlockInsetInInset(this, inset)) {
 805                 // Tell the paragraph dialog that we changed paragraph
 806                 dispatch(FuncRequest(LFUN_PARAGRAPH_UPDATE));
 807                 // owner inset has updated the layout combo
 808                 finishUndo();
 809                 return 0;
 810         }
 811         return 1;
 812 }
 813
 814
 815 void BufferView::lockedInsetStoreUndo(Undo::undo_kind kind)
 816 {
 817         if (!theLockingInset())
 818                 return; // shouldn't happen
 819         if (kind == Undo::EDIT) // in this case insets would not be stored!
 820                 kind = Undo::FINISH;
 821         setUndo(this, kind,
 822                 text->cursor.par(),
 823                 text->cursor.par()->next());
 824 }
 825
 826
 827 void BufferView::updateInset(Inset * inset)
 828 {
 829         pimpl_->updateInset(inset);
 830 }
 831
 832
 833 bool BufferView::ChangeInsets(Inset::Code code,
 834                               string const & from, string const & to)
 835 {
 836         bool need_update = false;
 837         LyXCursor cursor = text->cursor;
 838         LyXCursor tmpcursor = cursor;
 839         cursor.par(tmpcursor.par());
 840         cursor.pos(tmpcursor.pos());
 841
 842         ParIterator end = buffer()->par_iterator_end();
 843         for (ParIterator it = buffer()->par_iterator_begin();
 844              it != end; ++it) {
 845                 Paragraph * par = *it;
 846                 bool changed_inset = false;
 847                 for (InsetList::iterator it2 = par->insetlist.begin();
 848                      it2 != par->insetlist.end(); ++it2) {
 849                         if (it2.getInset()->lyxCode() == code) {
 850                                 InsetCommand * inset = static_cast<InsetCommand *>(it2.getInset());
 851                                 if (inset->getContents() == from) {
 852                                         inset->setContents(to);
 853                                         changed_inset = true;
 854                                 }
 855                         }
 856                 }
 857                 if (changed_inset) {
 858                         need_update = true;
 859
 860                         // FIXME
 861
 862                         // The test it.size()==1 was needed to prevent crashes.
 863                         // How to set the cursor corretly when it.size()>1 ??
 864                         if (it.size() == 1) {
 865                                 text->setCursorIntern(par, 0);
 866                                 text->redoParagraphs(text->cursor,
 867                                                      text->cursor.par()->next());
 868                                 text->fullRebreak();
 869                         }
 870                 }
 871         }
 872         text->setCursorIntern(cursor.par(), cursor.pos());
 873         return need_update;
 874 }
 875
 876
 877 bool BufferView::ChangeRefsIfUnique(string const & from, string const & to)
 878 {
 879         // Check if the label 'from' appears more than once
 880         vector<string> labels = buffer()->getLabelList();
 881
 882         if (lyx::count(labels.begin(), labels.end(), from) > 1)
 883                 return false;
 884
 885         return ChangeInsets(Inset::REF_CODE, from, to);
 886 }
 887
 888
 889 bool BufferView::ChangeCitationsIfUnique(string const & from, string const & to)
 890 {
 891         typedef pair<string, string> StringPair;
 892
 893         vector<StringPair> keys;
 894         buffer()->fillWithBibKeys(keys);
 895         if (count_if(keys.begin(), keys.end(),
 896                      lyx::equal_1st_in_pair<StringPair>(from))
 897             > 1)
 898                 return false;
 899
 900         return ChangeInsets(Inset::CITE_CODE, from, to);
 901 }
 902
 903
 904 UpdatableInset * BufferView::theLockingInset() const
 905 {
 906         // If NULL is not allowed we should put an Assert here. (Lgb)
 907         if (text)
 908                 return text->the_locking_inset;
 909         return 0;
 910 }
 911
 912
 913 void BufferView::theLockingInset(UpdatableInset * inset)
 914 {
 915         text->the_locking_inset = inset;
 916 }
 917
 918
 919 LyXText * BufferView::getLyXText() const
 920 {
 921         if (theLockingInset()) {
 922                 LyXText * txt = theLockingInset()->getLyXText(this, true);
 923                 if (txt)
 924                         return txt;
 925         }
 926         return text;
 927 }
 928
 929
 930 LyXText * BufferView::getParentText(Inset * inset) const
 931 {
 932         if (inset->owner()) {
 933                 LyXText * txt = inset->getLyXText(this);
 934                 inset = inset->owner();
 935                 while (inset && inset->getLyXText(this) == txt)
 936                         inset = inset->owner();
 937                 if (inset)
 938                         return inset->getLyXText(this);
 939         }
 940         return text;
 941 }
 942
 943
 944 Language const * BufferView::getParentLanguage(Inset * inset) const
 945 {
 946         LyXText * text = getParentText(inset);
 947         return text->cursor.par()->getFontSettings(buffer()->params,
 948                                                    text->cursor.pos()).language();
 949 }
 950
 951
 952 Encoding const * BufferView::getEncoding() const
 953 {
 954         LyXText * t = getLyXText();
 955         if (!t)
 956                 return 0;
 957
 958         LyXCursor const & c= t->cursor;
 959         LyXFont const font = c.par()->getFont(buffer()->params, c.pos());
 960         return font.language()->encoding();
 961 }
 962
 963
 964 void BufferView::haveSelection(bool sel)
 965 {
 966         pimpl_->workarea().haveSelection(sel);
 967 }
 968
 969
 970 int BufferView::workHeight() const
 971 {
 972         return pimpl_->workarea().workHeight();
 973 }