src/BufferView.C

   1 /**
   2  * \file BufferView.C
   3  * Copyright 1995-2002 the LyX Team
   4  * Read the file COPYING
   5  *
   6  * \author unknown
   7  * \author John Levon <moz@compsoc.man.ac.uk>
   8  */
   9
  10 #include <config.h>
  11
  12 #ifdef __GNUG__
  13 #pragma implementation
  14 #endif
  15
  16 #include "BufferView.h"
  17 #include "BufferView_pimpl.h"
  18
  19 #include "BufferView_pimpl.h"
  20 #include "LaTeX.h"
  21 #include "WordLangTuple.h"
  22 #include "buffer.h"
  23 #include "bufferlist.h"
  24 #include "debug.h"
  25 #include "gettext.h"
  26 #include "iterators.h"
  27 #include "language.h"
  28 #include "lyxcursor.h"
  29 #include "lyxlex.h"
  30 #include "lyxtext.h"
  31 #include "undo_funcs.h"
  32
  33 #include "frontends/Alert.h"
  34 #include "frontends/Dialogs.h"
  35 #include "frontends/LyXView.h"
  36 #include "frontends/WorkArea.h"
  37 #include "frontends/screen.h"
  38
  39 #include "insets/insetcommand.h" // ChangeRefs
  40 #include "insets/inseterror.h"
  41
  42 #include "support/FileInfo.h"
  43 #include "support/filetools.h"
  44 #include "support/lyxfunctional.h" // equal_1st_in_pair
  45 #include "support/types.h"
  46 #include "support/lyxalgo.h" // lyx_count
  47
  48 #include <fstream>
  49
  50 extern BufferList bufferlist;
  51
  52 using lyx::pos_type;
  53
  54 using std::pair;
  55 using std::endl;
  56 using std::ifstream;
  57 using std::vector;
  58 using std::find;
  59 using std::count_if;
  60
  61
  62 BufferView::BufferView(LyXView * owner, int xpos, int ypos,
  63                        int width, int height)
  64         : pimpl_(new Pimpl(this, owner, xpos, ypos, width, height))
  65 {
  66         text = 0;
  67 }
  68
  69
  70 BufferView::~BufferView()
  71 {
  72         delete text;
  73         delete pimpl_;
  74 }
  75
  76
  77 Buffer * BufferView::buffer() const
  78 {
  79         return pimpl_->buffer_;
  80 }
  81
  82
  83 LyXScreen & BufferView::screen() const
  84 {
  85         return pimpl_->screen();
  86 }
  87
  88
  89 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::resize()
 108 {
 109         if (pimpl_->buffer_) {
 110                 pimpl_->resizeCurrentBuffer();
 111         }
 112 }
 113
 114
 115 void BufferView::repaint()
 116 {
 117         pimpl_->repaint();
 118 }
 119
 120
 121 bool BufferView::fitCursor()
 122 {
 123         return pimpl_->fitCursor();
 124 }
 125
 126
 127 void BufferView::update()
 128 {
 129         pimpl_->update();
 130 }
 131
 132
 133 void BufferView::updateScrollbar()
 134 {
 135         pimpl_->updateScrollbar();
 136 }
 137
 138
 139 void BufferView::scrollDocView(int value)
 140 {
 141         pimpl_->scrollDocView(value);
 142 }
 143
 144
 145 void BufferView::redoCurrentBuffer()
 146 {
 147         pimpl_->redoCurrentBuffer();
 148 }
 149
 150
 151 bool BufferView::available() const
 152 {
 153         return pimpl_->available();
 154 }
 155
 156
 157 void BufferView::beforeChange(LyXText * text)
 158 {
 159         pimpl_->beforeChange(text);
 160 }
 161
 162
 163 void BufferView::savePosition(unsigned int i)
 164 {
 165         pimpl_->savePosition(i);
 166 }
 167
 168
 169 void BufferView::restorePosition(unsigned int i)
 170 {
 171         pimpl_->restorePosition(i);
 172 }
 173
 174
 175 bool BufferView::isSavedPosition(unsigned int i)
 176 {
 177         return pimpl_->isSavedPosition(i);
 178 }
 179
 180
 181 void BufferView::update(LyXText * text, UpdateCodes f)
 182 {
 183         pimpl_->update(text, f);
 184 }
 185
 186
 187 void BufferView::switchKeyMap()
 188 {
 189         pimpl_->switchKeyMap();
 190 }
 191
 192
 193 void BufferView::insetUnlock()
 194 {
 195         pimpl_->insetUnlock();
 196 }
 197
 198
 199 int BufferView::workWidth() const
 200 {
 201         return pimpl_->workarea().workWidth();
 202 }
 203
 204
 205 void BufferView::showCursor()
 206 {
 207         pimpl_->showCursor();
 208 }
 209
 210
 211 void BufferView::hideCursor()
 212 {
 213         pimpl_->hideCursor();
 214 }
 215
 216
 217 void BufferView::toggleSelection(bool b)
 218 {
 219         pimpl_->toggleSelection(b);
 220 }
 221
 222
 223 void BufferView::toggleToggle()
 224 {
 225         pimpl_->toggleToggle();
 226 }
 227
 228
 229 void BufferView::center()
 230 {
 231         pimpl_->center();
 232 }
 233
 234
 235 string const BufferView::getClipboard() const
 236 {
 237         return pimpl_->workarea().getClipboard();
 238 }
 239
 240
 241 void BufferView::stuffClipboard(string const & stuff) const
 242 {
 243         pimpl_->stuffClipboard(stuff);
 244 }
 245
 246
 247 BufferView::UpdateCodes operator|(BufferView::UpdateCodes uc1,
 248                                   BufferView::UpdateCodes uc2)
 249 {
 250         return static_cast<BufferView::UpdateCodes>
 251                 (static_cast<int>(uc1) | static_cast<int>(uc2));
 252 }
 253
 254
 255 bool BufferView::dispatch(FuncRequest const & ev)
 256 {
 257         return pimpl_->dispatch(ev);
 258 }
 259
 260
 261 int BufferView::scroll(long time)
 262 {
 263         return pimpl_->scroll(time);
 264 }
 265
 266
 267 int BufferView::defaultHeight() const
 268 {
 269         return text->defaultHeight();
 270 }
 271
 272
 273
 274 // Inserts a file into current document
 275 bool BufferView::insertLyXFile(string const & filen)
 276         //
 277         // Copyright CHT Software Service GmbH
 278         // Uwe C. Schroeder
 279         //
 280         // Insert a LyXformat - file into current buffer
 281         //
 282         // Moved from lyx_cb.C (Lgb)
 283 {
 284         if (filen.empty())
 285                 return false;
 286
 287         string const fname = MakeAbsPath(filen);
 288
 289         // check if file exist
 290         FileInfo const fi(fname);
 291
 292         if (!fi.readable()) {
 293                 Alert::alert(_("Error!"),
 294                            _("Specified file is unreadable: "),
 295                            MakeDisplayPath(fname, 50));
 296                 return false;
 297         }
 298
 299         beforeChange(text);
 300
 301         ifstream ifs(fname.c_str());
 302         if (!ifs) {
 303                 Alert::alert(_("Error!"),
 304                            _("Cannot open specified file: "),
 305                            MakeDisplayPath(fname, 50));
 306                 return false;
 307         }
 308
 309         int const c = ifs.peek();
 310
 311         LyXLex lex(0, 0);
 312         lex.setStream(ifs);
 313
 314         bool res = true;
 315
 316         if (c == '#') {
 317                 lyxerr[Debug::INFO] << "Will insert file with header" << endl;
 318                 res = buffer()->readFile(lex, text->cursor.par());
 319         } else {
 320                 lyxerr[Debug::INFO] << "Will insert file without header"
 321                                     << endl;
 322                 res = buffer()->readLyXformat2(lex, text->cursor.par());
 323         }
 324
 325         resize();
 326         return res;
 327 }
 328
 329
 330 bool BufferView::removeAutoInsets()
 331 {
 332         // keep track of which pos and par the cursor was on
 333         Paragraph * cursor_par = text->cursor.par();
 334         Paragraph * cursor_par_prev = cursor_par ? cursor_par->previous() : 0;
 335         Paragraph * cursor_par_next = cursor_par ? cursor_par->next() : 0;
 336         pos_type cursor_pos = text->cursor.pos();
 337
 338         bool found = false;
 339
 340         // Trap the deletion of the paragraph the cursor is in.
 341         // Iterate until we find a paragraph that won't be immediately deleted.
 342         // In reality this should mean we only execute the body of the while
 343         // loop once at most.  However for safety we iterate rather than just
 344         // make this an if () conditional.
 345         while ((cursor_par_prev || cursor_par_next)
 346                && text->setCursor(this,
 347                                   cursor_par_prev ? cursor_par_prev : cursor_par_next,
 348                                   0)) {
 349                 // We just removed cursor_par so have to fix the "cursor"
 350                 if (cursor_par_prev) {
 351                         // '.' = cursor_par
 352                         //  a -> a.
 353                         // .
 354                         cursor_par = cursor_par_prev;
 355                         cursor_pos = cursor_par->size();
 356                 } else {
 357                         // .  -> .a
 358                         //  a
 359                         cursor_par = cursor_par_next;
 360                         cursor_pos = 0;
 361                 }
 362                 cursor_par_prev = cursor_par->previous();
 363                 cursor_par_next = cursor_par->next();
 364         }
 365
 366         // Iterate through the paragraphs removing autoDelete insets as we go.
 367         // If the paragraph ends up empty after all the autoDelete insets are
 368         // removed that paragraph will be removed by the next setCursor() call.
 369         ParIterator it = buffer()->par_iterator_begin();
 370         ParIterator end = buffer()->par_iterator_end();
 371         for (; it != end; ++it) {
 372                 Paragraph * par = *it;
 373                 Paragraph * par_prev = par ? par->previous() : 0;
 374                 bool removed = false;
 375
 376                 if (text->setCursor(this, par, 0)
 377                     && cursor_par == par_prev) {
 378                         // The previous setCursor line was deleted and that
 379                         // was the cursor_par line.  This can only happen if an
 380                         // error box was the sole item on cursor_par.
 381                         // It is possible for cursor_par_prev to be stray if
 382                         // the line it pointed to only had a error box on it
 383                         // so we have to set it to a known correct value.
 384                         // This is often the same value it already had.
 385                         cursor_par_prev = par->previous();
 386                         if (cursor_par_prev) {
 387                                 // '|' = par, '.' = cursor_par, 'E' = error box
 388                                 // First step below may occur before while{}
 389                                 //  a    |a      a     a     a.
 390                                 //  E -> .E -> |.E -> .  -> |b
 391                                 // .      b      b    |b
 392                                 //  b
 393                                 cursor_par = cursor_par_prev;
 394                                 cursor_pos = cursor_par_prev->size();
 395                                 cursor_par_prev = cursor_par->previous();
 396                                 // cursor_par_next remains the same
 397                         } else if (cursor_par_next) {
 398                                 // First step below may occur before while{}
 399                                 // .
 400                                 //  E -> |.E -> |.  -> . -> .|a
 401                                 //  a      a      a    |a
 402                                 cursor_par = cursor_par_next;
 403                                 cursor_pos = 0;
 404                                 // cursor_par_prev remains unset
 405                                 cursor_par_next = cursor_par->next();
 406                         } else {
 407                                 // I can't find a way to trigger this
 408                                 // so it should be unreachable code
 409                                 // unless the buffer is corrupted.
 410                                 lyxerr << "BufferView::removeAutoInsets() is bad\n";
 411                         }
 412                 }
 413
 414                 InsetList::iterator pit = par->insetlist.begin();
 415                 InsetList::iterator pend = par->insetlist.end();
 416
 417                 while (pit != pend) {
 418                         if (pit.getInset()->autoDelete()) {
 419                                 removed = true;
 420                                 pos_type const pos = pit.getPos();
 421
 422                                 par->erase(pos);
 423                                 // We just invalidated par's inset iterators so
 424                                 // we get the next valid iterator position
 425                                 pit = par->insetlist.insetIterator(pos);
 426                                 // and ensure we have a valid end iterator.
 427                                 pend = par->insetlist.end();
 428
 429                                 if (cursor_par == par) {
 430                                         // update the saved cursor position
 431                                         if (cursor_pos > pos)
 432                                                 --cursor_pos;
 433                                 }
 434                         } else {
 435                                 ++pit;
 436                         }
 437                 }
 438                 if (removed) {
 439                         found = true;
 440                         text->redoParagraph(this);
 441                 }
 442         }
 443
 444         // It is possible that the last line is empty if it was cursor_par
 445         // and/or only had an error inset on it.  So we set the cursor to the
 446         // start of the doc to force its removal and ensure a valid saved cursor
 447         if (text->setCursor(this, text->ownerParagraph(), 0)
 448             && 0 == cursor_par_next) {
 449                 cursor_par = cursor_par_prev;
 450                 cursor_pos = cursor_par->size();
 451         } else if (cursor_pos > cursor_par->size()) {
 452                 // Some C-Enter lines were removed by the setCursor call which
 453                 // then invalidated cursor_pos. It could still be "wrong" because
 454                 // the cursor may appear to have jumped but since we collapsed
 455                 // some C-Enter lines this should be a reasonable compromise.
 456                 cursor_pos = cursor_par->size();
 457         }
 458
 459         // restore the original cursor in its corrected location.
 460         text->setCursorIntern(this, cursor_par, cursor_pos);
 461
 462         return found;
 463 }
 464
 465
 466 void BufferView::insertErrors(TeXErrors & terr)
 467 {
 468         // Save the cursor position
 469         LyXCursor cursor = text->cursor;
 470
 471         TeXErrors::Errors::const_iterator cit = terr.begin();
 472         TeXErrors::Errors::const_iterator end = terr.end();
 473         for (; cit != end; ++cit) {
 474                 string const desctext(cit->error_desc);
 475                 string const errortext(cit->error_text);
 476                 string const msgtxt = desctext + '\n' + errortext;
 477                 int const errorrow = cit->error_in_line;
 478
 479                 // Insert error string for row number
 480                 int tmpid = -1;
 481                 int tmppos = -1;
 482
 483                 if (buffer()->texrow.getIdFromRow(errorrow, tmpid, tmppos)) {
 484                         buffer()->texrow.increasePos(tmpid, tmppos);
 485                 }
 486
 487                 Paragraph * texrowpar = 0;
 488
 489                 if (tmpid == -1) {
 490                         texrowpar = text->ownerParagraph();
 491                         tmppos = 0;
 492                 } else {
 493                         texrowpar = buffer()->getParFromID(tmpid);
 494                 }
 495
 496                 if (texrowpar == 0)
 497                         continue;
 498
 499                 freezeUndo();
 500                 InsetError * new_inset = new InsetError(msgtxt);
 501                 text->setCursorIntern(this, texrowpar, tmppos);
 502                 text->insertInset(this, new_inset);
 503                 text->fullRebreak(this);
 504                 unFreezeUndo();
 505         }
 506         // Restore the cursor position
 507         text->setCursorIntern(this, cursor.par(), cursor.pos());
 508 }
 509
 510
 511 void BufferView::setCursorFromRow(int row)
 512 {
 513         int tmpid = -1;
 514         int tmppos = -1;
 515
 516         buffer()->texrow.getIdFromRow(row, tmpid, tmppos);
 517
 518         Paragraph * texrowpar;
 519
 520         if (tmpid == -1) {
 521                 texrowpar = text->ownerParagraph();
 522                 tmppos = 0;
 523         } else {
 524                 texrowpar = buffer()->getParFromID(tmpid);
 525         }
 526         text->setCursor(this, texrowpar, tmppos);
 527 }
 528
 529
 530 bool BufferView::insertInset(Inset * inset, string const & lout)
 531 {
 532         return pimpl_->insertInset(inset, lout);
 533 }
 534
 535
 536 // This is also a buffer property (ale)
 537 // Not so sure about that. a goto Label function can not be buffer local, just
 538 // think how this will work in a multiwindow/buffer environment, all the
 539 // cursors in all the views showing this buffer will move. (Lgb)
 540 // OK, then no cursor action should be allowed in buffer. (ale)
 541 bool BufferView::gotoLabel(string const & label)
 542 {
 543         for (Buffer::inset_iterator it = buffer()->inset_iterator_begin();
 544              it != buffer()->inset_iterator_end(); ++it) {
 545                 vector<string> labels = it->getLabelList();
 546                 if (find(labels.begin(),labels.end(),label)
 547                      != labels.end()) {
 548                         beforeChange(text);
 549                         text->setCursor(this, it.getPar(), it.getPos());
 550                         text->selection.cursor = text->cursor;
 551                         update(text, BufferView::SELECT|BufferView::FITCUR);
 552                         return true;
 553                 }
 554         }
 555         return false;
 556 }
 557
 558
 559 void BufferView::menuUndo()
 560 {
 561         if (!available())
 562                 return;
 563
 564         owner()->message(_("Undo"));
 565         hideCursor();
 566         beforeChange(text);
 567         update(text, BufferView::SELECT|BufferView::FITCUR);
 568         if (!textUndo(this))
 569                 owner()->message(_("No further undo information"));
 570         else
 571                 update(text, BufferView::SELECT|BufferView::FITCUR|BufferView::CHANGE);
 572         switchKeyMap();
 573 }
 574
 575
 576 void BufferView::menuRedo()
 577 {
 578         if (!available())
 579                 return;
 580
 581         owner()->message(_("Redo"));
 582         hideCursor();
 583         beforeChange(text);
 584         update(text, BufferView::SELECT|BufferView::FITCUR);
 585         if (!textRedo(this))
 586                 owner()->message(_("No further redo information"));
 587         else
 588                 update(text, BufferView::SELECT|BufferView::FITCUR|BufferView::CHANGE);
 589         switchKeyMap();
 590 }
 591
 592
 593 void BufferView::copyEnvironment()
 594 {
 595         if (available()) {
 596                 text->copyEnvironmentType();
 597                 owner()->message(_("Paragraph environment type copied"));
 598         }
 599 }
 600
 601
 602 void BufferView::pasteEnvironment()
 603 {
 604         if (available()) {
 605                 text->pasteEnvironmentType(this);
 606                 owner()->message(_("Paragraph environment type set"));
 607                 update(text, BufferView::SELECT|BufferView::FITCUR|BufferView::CHANGE);
 608         }
 609 }
 610
 611
 612 // these functions are for the spellchecker
 613 WordLangTuple const BufferView::nextWord(float & value)
 614 {
 615         if (!available()) {
 616                 value = 1;
 617                 return WordLangTuple();
 618         }
 619
 620         return text->selectNextWordToSpellcheck(this, value);
 621 }
 622
 623
 624 void BufferView::selectLastWord()
 625 {
 626         if (!available())
 627                 return;
 628
 629         LyXCursor cur = text->selection.cursor;
 630         hideCursor();
 631         beforeChange(text);
 632         text->selection.cursor = cur;
 633         text->selectSelectedWord(this);
 634         toggleSelection(false);
 635         update(text, BufferView::SELECT|BufferView::FITCUR);
 636 }
 637
 638
 639 void BufferView::endOfSpellCheck()
 640 {
 641         if (!available()) return;
 642
 643         hideCursor();
 644         beforeChange(text);
 645         text->selectSelectedWord(this);
 646         text->clearSelection();
 647         update(text, BufferView::SELECT|BufferView::FITCUR);
 648 }
 649
 650
 651 void BufferView::replaceWord(string const & replacestring)
 652 {
 653         if (!available())
 654                 return;
 655
 656         LyXText * tt = getLyXText();
 657         hideCursor();
 658         update(tt, BufferView::SELECT|BufferView::FITCUR);
 659
 660         // clear the selection (if there is any)
 661         toggleSelection(false);
 662         update(tt, BufferView::SELECT|BufferView::FITCUR);
 663
 664         // clear the selection (if there is any)
 665         toggleSelection(false);
 666         tt->replaceSelectionWithString(this, replacestring);
 667
 668         tt->setSelectionOverString(this, replacestring);
 669
 670         // Go back so that replacement string is also spellchecked
 671         for (string::size_type i = 0; i < replacestring.length() + 1; ++i) {
 672                 tt->cursorLeft(this);
 673         }
 674         update(tt, BufferView::SELECT|BufferView::FITCUR|BufferView::CHANGE);
 675 }
 676 // End of spellchecker stuff
 677
 678
 679 bool BufferView::lockInset(UpdatableInset * inset)
 680 {
 681         if (!inset)
 682                 return false;
 683         // don't relock if we're already locked
 684         if (theLockingInset() == inset)
 685                 return true;
 686         if (!theLockingInset()) {
 687                 // first check if it's the inset under the cursor we want lock
 688                 // should be most of the time
 689                 char const c = text->cursor.par()->getChar(text->cursor.pos());
 690                 if (c == Paragraph::META_INSET) {
 691                         Inset * in = text->cursor.par()->getInset(text->cursor.pos());
 692                         if (inset == in) {
 693                                 theLockingInset(inset);
 694                                 return true;
 695                         }
 696                 }
 697                 // Then do a deep look of the inset and lock the right one
 698                 int const id = inset->id();
 699                 ParagraphList::iterator pit = buffer()->paragraphs.begin();
 700                 ParagraphList::iterator pend = buffer()->paragraphs.end();
 701                 for (; pit != pend; ++pit) {
 702                         InsetList::iterator it = pit->insetlist.begin();
 703                         InsetList::iterator end = pit->insetlist.end();
 704                         for (; it != end; ++it) {
 705                                 if (it.getInset() == inset) {
 706                                         text->setCursorIntern(this, &*pit, it.getPos());
 707                                         theLockingInset(inset);
 708                                         return true;
 709                                 }
 710                                 if (it.getInset()->getInsetFromID(id)) {
 711                                         text->setCursorIntern(this, &*pit, it.getPos());
 712                                         it.getInset()->edit(this);
 713                                         return theLockingInset()->lockInsetInInset(this, inset);
 714                                 }
 715                         }
 716                 }
 717                 return false;
 718         }
 719         return theLockingInset()->lockInsetInInset(this, inset);
 720 }
 721
 722
 723 void BufferView::showLockedInsetCursor(int x, int y, int asc, int desc)
 724 {
 725         if (available() && theLockingInset() && !theLockingInset()->nodraw()) {
 726                 LyXCursor cursor = text->cursor;
 727                 Inset * locking_inset = theLockingInset()->getLockingInset();
 728
 729                 if ((cursor.pos() - 1 >= 0) &&
 730                     cursor.par()->isInset(cursor.pos() - 1) &&
 731                     (cursor.par()->getInset(cursor.pos() - 1) ==
 732                      locking_inset))
 733                         text->setCursor(this, cursor,
 734                                         cursor.par(), cursor.pos() - 1);
 735                 LyXScreen::Cursor_Shape shape = LyXScreen::BAR_SHAPE;
 736                 LyXText * txt = getLyXText();
 737                 if (locking_inset->isTextInset() &&
 738                     locking_inset->lyxCode() != Inset::ERT_CODE &&
 739                     (txt->real_current_font.language() !=
 740                      buffer()->params.language
 741                      || txt->real_current_font.isVisibleRightToLeft()
 742                      != buffer()->params.language->RightToLeft()))
 743                         shape = (txt->real_current_font.isVisibleRightToLeft())
 744                                 ? LyXScreen::REVERSED_L_SHAPE
 745                                 : LyXScreen::L_SHAPE;
 746                 y += cursor.iy() + theLockingInset()->insetInInsetY();
 747                 screen().showManualCursor(text, x, y, asc, desc,
 748                                                   shape);
 749         }
 750 }
 751
 752
 753 void BufferView::hideLockedInsetCursor()
 754 {
 755         if (theLockingInset() && available()) {
 756                 screen().hideCursor();
 757         }
 758 }
 759
 760
 761 bool BufferView::fitLockedInsetCursor(int x, int y, int asc, int desc)
 762 {
 763         if (theLockingInset() && available()) {
 764                 y += text->cursor.iy() + theLockingInset()->insetInInsetY();
 765                 if (screen().fitManualCursor(this, text, x, y, asc, desc)) {
 766                         updateScrollbar();
 767                         return true;
 768                 }
 769         }
 770         return false;
 771 }
 772
 773
 774 int BufferView::unlockInset(UpdatableInset * inset)
 775 {
 776         if (!inset)
 777                 return 0;
 778         if (inset && theLockingInset() == inset) {
 779                 inset->insetUnlock(this);
 780                 theLockingInset(0);
 781                 // make sure we update the combo !
 782                 owner()->setLayout(getLyXText()->cursor.par()->layout()->name());
 783                 // Tell the paragraph dialog that we changed paragraph
 784                 owner()->getDialogs().updateParagraph();
 785                 finishUndo();
 786                 return 0;
 787         } else if (inset && theLockingInset() &&
 788                    theLockingInset()->unlockInsetInInset(this, inset)) {
 789                 // Tell the paragraph dialog that we changed paragraph
 790                 owner()->getDialogs().updateParagraph();
 791                 // owner inset has updated the layout combo
 792                 finishUndo();
 793                 return 0;
 794         }
 795         return bufferlist.unlockInset(inset);
 796 }
 797
 798
 799 void BufferView::lockedInsetStoreUndo(Undo::undo_kind kind)
 800 {
 801         if (!theLockingInset())
 802                 return; // shouldn't happen
 803         if (kind == Undo::EDIT) // in this case insets would not be stored!
 804                 kind = Undo::FINISH;
 805         setUndo(this, kind,
 806                 text->cursor.par(),
 807                 text->cursor.par()->next());
 808 }
 809
 810
 811 void BufferView::updateInset(Inset * inset, bool mark_dirty)
 812 {
 813         pimpl_->updateInset(inset, mark_dirty);
 814 }
 815
 816
 817 bool BufferView::ChangeInsets(Inset::Code code,
 818                               string const & from, string const & to)
 819 {
 820         bool need_update = false;
 821         LyXCursor cursor = text->cursor;
 822         LyXCursor tmpcursor = cursor;
 823         cursor.par(tmpcursor.par());
 824         cursor.pos(tmpcursor.pos());
 825
 826         ParIterator end = buffer()->par_iterator_end();
 827         for (ParIterator it = buffer()->par_iterator_begin();
 828              it != end; ++it) {
 829                 Paragraph * par = *it;
 830                 bool changed_inset = false;
 831                 for (InsetList::iterator it2 = par->insetlist.begin();
 832                      it2 != par->insetlist.end(); ++it2) {
 833                         if (it2.getInset()->lyxCode() == code) {
 834                                 InsetCommand * inset = static_cast<InsetCommand *>(it2.getInset());
 835                                 if (inset->getContents() == from) {
 836                                         inset->setContents(to);
 837                                         changed_inset = true;
 838                                 }
 839                         }
 840                 }
 841                 if (changed_inset) {
 842                         need_update = true;
 843
 844                         // FIXME
 845
 846                         // The test it.size()==1 was needed to prevent crashes.
 847                         // How to set the cursor corretly when it.size()>1 ??
 848                         if (it.size() == 1) {
 849                                 text->setCursorIntern(this, par, 0);
 850                                 text->redoParagraphs(this, text->cursor,
 851                                                      text->cursor.par()->next());
 852                                 text->fullRebreak(this);
 853                         }
 854                 }
 855         }
 856         text->setCursorIntern(this, cursor.par(), cursor.pos());
 857         return need_update;
 858 }
 859
 860
 861 bool BufferView::ChangeRefsIfUnique(string const & from, string const & to)
 862 {
 863         // Check if the label 'from' appears more than once
 864         vector<string> labels = buffer()->getLabelList();
 865
 866         if (lyx::count(labels.begin(), labels.end(), from) > 1)
 867                 return false;
 868
 869         return ChangeInsets(Inset::REF_CODE, from, to);
 870 }
 871
 872
 873 bool BufferView::ChangeCitationsIfUnique(string const & from,
 874                                          string const & to)
 875 {
 876         typedef pair<string, string> StringPair;
 877
 878         vector<StringPair> keys = buffer()->getBibkeyList();
 879         if (count_if(keys.begin(), keys.end(),
 880                      lyx::equal_1st_in_pair<StringPair>(from))
 881             > 1)
 882                 return false;
 883
 884         return ChangeInsets(Inset::CITE_CODE, from, to);
 885 }
 886
 887
 888 UpdatableInset * BufferView::theLockingInset() const
 889 {
 890         // If NULL is not allowed we should put an Assert here. (Lgb)
 891         if (text)
 892                 return text->the_locking_inset;
 893         return 0;
 894 }
 895
 896
 897 void BufferView::theLockingInset(UpdatableInset * inset)
 898 {
 899         text->the_locking_inset = inset;
 900 }
 901
 902
 903 LyXText * BufferView::getLyXText() const
 904 {
 905         if (theLockingInset()) {
 906                 LyXText * txt = theLockingInset()->getLyXText(this, true);
 907                 if (txt)
 908                         return txt;
 909         }
 910         return text;
 911 }
 912
 913
 914 LyXText * BufferView::getParentText(Inset * inset) const
 915 {
 916         if (inset->owner()) {
 917                 LyXText * txt = inset->getLyXText(this);
 918                 inset = inset->owner();
 919                 while (inset && inset->getLyXText(this) == txt)
 920                         inset = inset->owner();
 921                 if (inset)
 922                         return inset->getLyXText(this);
 923         }
 924         return text;
 925 }
 926
 927
 928 Language const * BufferView::getParentLanguage(Inset * inset) const
 929 {
 930         LyXText * text = getParentText(inset);
 931         return text->cursor.par()->getFontSettings(buffer()->params,
 932                                                    text->cursor.pos()).language();
 933 }
 934
 935
 936 void BufferView::haveSelection(bool sel)
 937 {
 938         pimpl_->workarea().haveSelection(sel);
 939 }
 940
 941
 942 int BufferView::workHeight() const
 943 {
 944         return pimpl_->workarea().workHeight();
 945 }