src/BufferView.C

   1 /**
   2  * \file BufferView.C
   3  * Copyright 1995-2002 the LyX Team
   4  * Read the file COPYING
   5  *
   6  * \author unknown
   7  * \author John Levon <moz@compsoc.man.ac.uk>
   8  */
   9
  10 #include <config.h>
  11
  12 #include "BufferView.h"
  13 #include "BufferView_pimpl.h"
  14
  15 #include "BufferView_pimpl.h"
  16 #include "LaTeX.h"
  17 #include "ParagraphParameters.h"
  18 #include "WordLangTuple.h"
  19 #include "buffer.h"
  20 #include "bufferlist.h"
  21 #include "debug.h"
  22 #include "gettext.h"
  23 #include "iterators.h"
  24 #include "language.h"
  25 #include "lyxcursor.h"
  26 #include "lyxlex.h"
  27 #include "lyxtext.h"
  28 #include "undo_funcs.h"
  29 #include "changes.h"
  30
  31 #include "frontends/Alert.h"
  32 #include "frontends/Dialogs.h"
  33 #include "frontends/LyXView.h"
  34 #include "frontends/WorkArea.h"
  35 #include "frontends/screen.h"
  36
  37 #include "insets/insetcommand.h" // ChangeRefs
  38 #include "insets/inseterror.h"
  39 #include "insets/updatableinset.h"
  40
  41 #include "support/FileInfo.h"
  42 #include "support/filetools.h"
  43 #include "support/lyxfunctional.h" // equal_1st_in_pair
  44 #include "support/types.h"
  45 #include "support/lyxalgo.h" // lyx_count
  46 #include "BoostFormat.h"
  47
  48 #include <fstream>
  49
  50 extern BufferList bufferlist;
  51
  52 using lyx::pos_type;
  53
  54 using std::pair;
  55 using std::endl;
  56 using std::ifstream;
  57 using std::vector;
  58 using std::find;
  59 using std::count_if;
  60
  61
  62 BufferView::BufferView(LyXView * owner, int xpos, int ypos,
  63                        int width, int height)
  64         : pimpl_(new Pimpl(this, owner, xpos, ypos, width, height))
  65 {
  66         text = 0;
  67 }
  68
  69
  70 BufferView::~BufferView()
  71 {
  72         delete text;
  73         delete pimpl_;
  74 }
  75
  76
  77 Buffer * BufferView::buffer() const
  78 {
  79         return pimpl_->buffer_;
  80 }
  81
  82
  83 LyXScreen & BufferView::screen() const
  84 {
  85         return pimpl_->screen();
  86 }
  87
  88
  89 LyXView * BufferView::owner() const
  90 {
  91         return pimpl_->owner_;
  92 }
  93
  94
  95 Painter & BufferView::painter() const
  96 {
  97         return pimpl_->painter();
  98 }
  99
 100
 101 void BufferView::buffer(Buffer * b)
 102 {
 103         pimpl_->buffer(b);
 104 }
 105
 106
 107 void BufferView::reload()
 108 {
 109         string const fn = buffer()->fileName();
 110         if (bufferlist.close(buffer(), false))
 111                 buffer(bufferlist.loadLyXFile(fn));
 112 }
 113
 114
 115 void BufferView::resize()
 116 {
 117         if (pimpl_->buffer_) {
 118                 pimpl_->resizeCurrentBuffer();
 119         }
 120 }
 121
 122
 123 void BufferView::repaint()
 124 {
 125         pimpl_->repaint();
 126 }
 127
 128
 129 bool BufferView::fitCursor()
 130 {
 131         return pimpl_->fitCursor();
 132 }
 133
 134
 135 void BufferView::update()
 136 {
 137         pimpl_->update();
 138 }
 139
 140
 141 void BufferView::updateScrollbar()
 142 {
 143         pimpl_->updateScrollbar();
 144 }
 145
 146
 147 void BufferView::scrollDocView(int value)
 148 {
 149         pimpl_->scrollDocView(value);
 150 }
 151
 152
 153 void BufferView::redoCurrentBuffer()
 154 {
 155         pimpl_->redoCurrentBuffer();
 156 }
 157
 158
 159 bool BufferView::available() const
 160 {
 161         return pimpl_->available();
 162 }
 163
 164
 165 Change const BufferView::getCurrentChange()
 166 {
 167         return pimpl_->getCurrentChange();
 168 }
 169
 170
 171 void BufferView::beforeChange(LyXText * text)
 172 {
 173         pimpl_->beforeChange(text);
 174 }
 175
 176
 177 void BufferView::savePosition(unsigned int i)
 178 {
 179         pimpl_->savePosition(i);
 180 }
 181
 182
 183 void BufferView::restorePosition(unsigned int i)
 184 {
 185         pimpl_->restorePosition(i);
 186 }
 187
 188
 189 bool BufferView::isSavedPosition(unsigned int i)
 190 {
 191         return pimpl_->isSavedPosition(i);
 192 }
 193
 194
 195 void BufferView::update(LyXText * text, UpdateCodes f)
 196 {
 197         pimpl_->update(text, f);
 198 }
 199
 200
 201 void BufferView::update(UpdateCodes f)
 202 {
 203         pimpl_->update(f);
 204 }
 205
 206
 207 void BufferView::switchKeyMap()
 208 {
 209         pimpl_->switchKeyMap();
 210 }
 211
 212
 213 void BufferView::insetUnlock()
 214 {
 215         pimpl_->insetUnlock();
 216 }
 217
 218
 219 int BufferView::workWidth() const
 220 {
 221         return pimpl_->workarea().workWidth();
 222 }
 223
 224
 225 void BufferView::showCursor()
 226 {
 227         pimpl_->showCursor();
 228 }
 229
 230
 231 void BufferView::hideCursor()
 232 {
 233         pimpl_->hideCursor();
 234 }
 235
 236
 237 void BufferView::toggleSelection(bool b)
 238 {
 239         pimpl_->toggleSelection(b);
 240 }
 241
 242
 243 void BufferView::toggleToggle()
 244 {
 245         pimpl_->toggleToggle();
 246 }
 247
 248
 249 void BufferView::center()
 250 {
 251         pimpl_->center();
 252 }
 253
 254
 255 string const BufferView::getClipboard() const
 256 {
 257         return pimpl_->workarea().getClipboard();
 258 }
 259
 260
 261 void BufferView::stuffClipboard(string const & stuff) const
 262 {
 263         pimpl_->stuffClipboard(stuff);
 264 }
 265
 266
 267 BufferView::UpdateCodes operator|(BufferView::UpdateCodes uc1,
 268                                   BufferView::UpdateCodes uc2)
 269 {
 270         return static_cast<BufferView::UpdateCodes>
 271                 (static_cast<int>(uc1) | static_cast<int>(uc2));
 272 }
 273
 274
 275 bool BufferView::dispatch(FuncRequest const & ev)
 276 {
 277         return pimpl_->dispatch(ev);
 278 }
 279
 280
 281 void BufferView::scroll(int lines)
 282 {
 283         pimpl_->scroll(lines);
 284 }
 285
 286
 287 // Inserts a file into current document
 288 bool BufferView::insertLyXFile(string const & filen)
 289         //
 290         // Copyright CHT Software Service GmbH
 291         // Uwe C. Schroeder
 292         //
 293         // Insert a LyXformat - file into current buffer
 294         //
 295         // Moved from lyx_cb.C (Lgb)
 296 {
 297         if (filen.empty())
 298                 return false;
 299
 300         string const fname = MakeAbsPath(filen);
 301
 302         // check if file exist
 303         FileInfo const fi(fname);
 304
 305         if (!fi.readable()) {
 306                 string const file = MakeDisplayPath(fname, 50);
 307 #if USE_BOOST_FORMAT
 308                 boost::format fmt(_("The specified document\n%1$s\ncould not be read."));
 309                 fmt % file;
 310                 string text = fmt.str();
 311 #else
 312                 string text = _("The specified document\n");
 313                 text += file + _(" could not be read.");
 314 #endif
 315                 Alert::error(_("Could not read document"), text);
 316                 return false;
 317         }
 318
 319         beforeChange(text);
 320
 321         ifstream ifs(fname.c_str());
 322         if (!ifs) {
 323                 string const error = strerror(errno);
 324                 string const file = MakeDisplayPath(fname, 50);
 325 #if USE_BOOST_FORMAT
 326                 boost::format fmt(_("Could not open the specified document\n%1$s\ndue to the error: %2$s"));
 327                 fmt % file;
 328                 fmt % error;
 329                 string text = fmt.str();
 330 #else
 331                 string text = _("Could not open the specified document\n");
 332                 text += file + _(" due to the error: ");
 333                 text += error;
 334 #endif
 335                 Alert::error(_("Could not open file"), text);
 336                 return false;
 337         }
 338
 339         int const c = ifs.peek();
 340
 341         LyXLex lex(0, 0);
 342         lex.setStream(ifs);
 343
 344         bool res = true;
 345
 346         if (c == '#') {
 347                 // FIXME: huh ? No we won't !
 348                 lyxerr[Debug::INFO] << "Will insert file with header" << endl;
 349                 res = buffer()->readFile(lex, fname, ParagraphList::iterator(text->cursor.par()));
 350         } else {
 351                 lyxerr[Debug::INFO] << "Will insert file without header"
 352                                     << endl;
 353                 res = buffer()->readBody(lex, ParagraphList::iterator(text->cursor.par()));
 354         }
 355
 356         resize();
 357         return res;
 358 }
 359
 360
 361 bool BufferView::removeAutoInsets()
 362 {
 363         // keep track of which pos and par the cursor was on
 364         Paragraph * cursor_par = text->cursor.par();
 365         Paragraph * cursor_par_prev = cursor_par ? cursor_par->previous() : 0;
 366         Paragraph * cursor_par_next = cursor_par ? cursor_par->next() : 0;
 367         pos_type cursor_pos = text->cursor.pos();
 368
 369         bool found = false;
 370
 371         // Trap the deletion of the paragraph the cursor is in.
 372         // Iterate until we find a paragraph that won't be immediately deleted.
 373         // In reality this should mean we only execute the body of the while
 374         // loop once at most.  However for safety we iterate rather than just
 375         // make this an if () conditional.
 376         while ((cursor_par_prev || cursor_par_next)
 377                && text->setCursor(
 378                                   cursor_par_prev ? cursor_par_prev : cursor_par_next,
 379                                   0)) {
 380                 // We just removed cursor_par so have to fix the "cursor"
 381                 if (cursor_par_prev) {
 382                         // '.' = cursor_par
 383                         //  a -> a.
 384                         // .
 385                         cursor_par = cursor_par_prev;
 386                         cursor_pos = cursor_par->size();
 387                 } else {
 388                         // .  -> .a
 389                         //  a
 390                         cursor_par = cursor_par_next;
 391                         cursor_pos = 0;
 392                 }
 393                 cursor_par_prev = cursor_par->previous();
 394                 cursor_par_next = cursor_par->next();
 395         }
 396
 397         // Iterate through the paragraphs removing autoDelete insets as we go.
 398         // If the paragraph ends up empty after all the autoDelete insets are
 399         // removed that paragraph will be removed by the next setCursor() call.
 400         ParIterator it = buffer()->par_iterator_begin();
 401         ParIterator end = buffer()->par_iterator_end();
 402         for (; it != end; ++it) {
 403                 Paragraph * par = *it;
 404                 Paragraph * par_prev = par ? par->previous() : 0;
 405                 bool removed = false;
 406
 407                 if (text->setCursor(par, 0)
 408                     && cursor_par == par_prev) {
 409                         // The previous setCursor line was deleted and that
 410                         // was the cursor_par line.  This can only happen if an
 411                         // error box was the sole item on cursor_par.
 412                         // It is possible for cursor_par_prev to be stray if
 413                         // the line it pointed to only had a error box on it
 414                         // so we have to set it to a known correct value.
 415                         // This is often the same value it already had.
 416                         cursor_par_prev = par->previous();
 417                         if (cursor_par_prev) {
 418                                 // '|' = par, '.' = cursor_par, 'E' = error box
 419                                 // First step below may occur before while{}
 420                                 //  a    |a      a     a     a.
 421                                 //  E -> .E -> |.E -> .  -> |b
 422                                 // .      b      b    |b
 423                                 //  b
 424                                 cursor_par = cursor_par_prev;
 425                                 cursor_pos = cursor_par_prev->size();
 426                                 cursor_par_prev = cursor_par->previous();
 427                                 // cursor_par_next remains the same
 428                         } else if (cursor_par_next) {
 429                                 // First step below may occur before while{}
 430                                 // .
 431                                 //  E -> |.E -> |.  -> . -> .|a
 432                                 //  a      a      a    |a
 433                                 cursor_par = cursor_par_next;
 434                                 cursor_pos = 0;
 435                                 // cursor_par_prev remains unset
 436                                 cursor_par_next = cursor_par->next();
 437                         } else {
 438                                 // I can't find a way to trigger this
 439                                 // so it should be unreachable code
 440                                 // unless the buffer is corrupted.
 441                                 lyxerr << "BufferView::removeAutoInsets() is bad\n";
 442                         }
 443                 }
 444
 445                 InsetList::iterator pit = par->insetlist.begin();
 446                 InsetList::iterator pend = par->insetlist.end();
 447
 448                 while (pit != pend) {
 449                         if (pit.getInset()->autoDelete()) {
 450                                 removed = true;
 451                                 pos_type const pos = pit.getPos();
 452
 453                                 par->erase(pos);
 454                                 // We just invalidated par's inset iterators so
 455                                 // we get the next valid iterator position
 456                                 pit = par->insetlist.insetIterator(pos);
 457                                 // and ensure we have a valid end iterator.
 458                                 pend = par->insetlist.end();
 459
 460                                 if (cursor_par == par) {
 461                                         // update the saved cursor position
 462                                         if (cursor_pos > pos)
 463                                                 --cursor_pos;
 464                                 }
 465                         } else {
 466                                 ++pit;
 467                         }
 468                 }
 469                 if (removed) {
 470                         found = true;
 471                         text->redoParagraph();
 472                 }
 473         }
 474
 475         // It is possible that the last line is empty if it was cursor_par
 476         // and/or only had an error inset on it.  So we set the cursor to the
 477         // start of the doc to force its removal and ensure a valid saved cursor
 478         if (text->setCursor(text->ownerParagraph(), 0)
 479             && 0 == cursor_par_next) {
 480                 cursor_par = cursor_par_prev;
 481                 cursor_pos = cursor_par->size();
 482         } else if (cursor_pos > cursor_par->size()) {
 483                 // Some C-Enter lines were removed by the setCursor call which
 484                 // then invalidated cursor_pos. It could still be "wrong" because
 485                 // the cursor may appear to have jumped but since we collapsed
 486                 // some C-Enter lines this should be a reasonable compromise.
 487                 cursor_pos = cursor_par->size();
 488         }
 489
 490         // restore the original cursor in its corrected location.
 491         text->setCursorIntern(cursor_par, cursor_pos);
 492
 493         return found;
 494 }
 495
 496
 497 void BufferView::insertErrors(TeXErrors & terr)
 498 {
 499         // Save the cursor position
 500         LyXCursor cursor = text->cursor;
 501
 502         TeXErrors::Errors::const_iterator cit = terr.begin();
 503         TeXErrors::Errors::const_iterator end = terr.end();
 504         for (; cit != end; ++cit) {
 505                 string const desctext(cit->error_desc);
 506                 string const errortext(cit->error_text);
 507                 string const msgtxt = desctext + '\n' + errortext;
 508                 int const errorrow = cit->error_in_line;
 509
 510                 // Insert error string for row number
 511                 int tmpid = -1;
 512                 int tmppos = -1;
 513
 514                 if (buffer()->texrow.getIdFromRow(errorrow, tmpid, tmppos)) {
 515                         buffer()->texrow.increasePos(tmpid, tmppos);
 516                 }
 517
 518                 Paragraph * texrowpar = 0;
 519
 520                 if (tmpid == -1) {
 521                         texrowpar = text->ownerParagraph();
 522                         tmppos = 0;
 523                 } else {
 524                         texrowpar = buffer()->getParFromID(tmpid);
 525                 }
 526
 527                 if (texrowpar == 0)
 528                         continue;
 529
 530                 freezeUndo();
 531                 InsetError * new_inset = new InsetError(msgtxt);
 532                 text->setCursorIntern(texrowpar, tmppos);
 533                 text->insertInset(new_inset);
 534                 text->fullRebreak();
 535                 unFreezeUndo();
 536         }
 537         // Restore the cursor position
 538         text->setCursorIntern(cursor.par(), cursor.pos());
 539 }
 540
 541
 542 void BufferView::setCursorFromRow(int row)
 543 {
 544         int tmpid = -1;
 545         int tmppos = -1;
 546
 547         buffer()->texrow.getIdFromRow(row, tmpid, tmppos);
 548
 549         Paragraph * texrowpar;
 550
 551         if (tmpid == -1) {
 552                 texrowpar = text->ownerParagraph();
 553                 tmppos = 0;
 554         } else {
 555                 texrowpar = buffer()->getParFromID(tmpid);
 556         }
 557         text->setCursor(texrowpar, tmppos);
 558 }
 559
 560
 561 bool BufferView::insertInset(Inset * inset, string const & lout)
 562 {
 563         return pimpl_->insertInset(inset, lout);
 564 }
 565
 566
 567 // This is also a buffer property (ale)
 568 // Not so sure about that. a goto Label function can not be buffer local, just
 569 // think how this will work in a multiwindow/buffer environment, all the
 570 // cursors in all the views showing this buffer will move. (Lgb)
 571 // OK, then no cursor action should be allowed in buffer. (ale)
 572 bool BufferView::gotoLabel(string const & label)
 573 {
 574         for (Buffer::inset_iterator it = buffer()->inset_iterator_begin();
 575              it != buffer()->inset_iterator_end(); ++it) {
 576                 vector<string> labels = it->getLabelList();
 577                 if (find(labels.begin(),labels.end(),label)
 578                      != labels.end()) {
 579                         beforeChange(text);
 580                         text->setCursor(it.getPar(), it.getPos());
 581                         text->selection.cursor = text->cursor;
 582                         update(text, BufferView::SELECT);
 583                         return true;
 584                 }
 585         }
 586         return false;
 587 }
 588
 589
 590 void BufferView::undo()
 591 {
 592         if (!available())
 593                 return;
 594
 595         owner()->message(_("Undo"));
 596         hideCursor();
 597         beforeChange(text);
 598         update(text, BufferView::SELECT);
 599         if (!textUndo(this))
 600                 owner()->message(_("No further undo information"));
 601         else
 602                 update(text, BufferView::SELECT);
 603         switchKeyMap();
 604 }
 605
 606
 607 void BufferView::redo()
 608 {
 609         if (!available())
 610                 return;
 611
 612         owner()->message(_("Redo"));
 613         hideCursor();
 614         beforeChange(text);
 615         update(text, BufferView::SELECT);
 616         if (!textRedo(this))
 617                 owner()->message(_("No further redo information"));
 618         else
 619                 update(text, BufferView::SELECT);
 620         switchKeyMap();
 621 }
 622
 623
 624 void BufferView::copyEnvironment()
 625 {
 626         if (available()) {
 627                 text->copyEnvironmentType();
 628                 owner()->message(_("Paragraph environment type copied"));
 629         }
 630 }
 631
 632
 633 void BufferView::pasteEnvironment()
 634 {
 635         if (available()) {
 636                 text->pasteEnvironmentType();
 637                 owner()->message(_("Paragraph environment type set"));
 638                 update(text, BufferView::SELECT);
 639         }
 640 }
 641
 642
 643 // these functions are for the spellchecker
 644 WordLangTuple const BufferView::nextWord(float & value)
 645 {
 646         if (!available()) {
 647                 value = 1;
 648                 return WordLangTuple();
 649         }
 650
 651         return text->selectNextWordToSpellcheck(value);
 652 }
 653
 654
 655 void BufferView::selectLastWord()
 656 {
 657         if (!available())
 658                 return;
 659
 660         LyXCursor cur = text->selection.cursor;
 661         hideCursor();
 662         beforeChange(text);
 663         text->selection.cursor = cur;
 664         text->selectSelectedWord();
 665         toggleSelection(false);
 666         update(text, BufferView::SELECT);
 667 }
 668
 669
 670 void BufferView::endOfSpellCheck()
 671 {
 672         if (!available()) return;
 673
 674         hideCursor();
 675         beforeChange(text);
 676         text->selectSelectedWord();
 677         text->clearSelection();
 678         update(text, BufferView::SELECT);
 679 }
 680
 681
 682 void BufferView::replaceWord(string const & replacestring)
 683 {
 684         if (!available())
 685                 return;
 686
 687         LyXText * tt = getLyXText();
 688         hideCursor();
 689         update(tt, BufferView::SELECT);
 690
 691         // clear the selection (if there is any)
 692         toggleSelection(false);
 693         update(tt, BufferView::SELECT);
 694
 695         // clear the selection (if there is any)
 696         toggleSelection(false);
 697         tt->replaceSelectionWithString(replacestring);
 698
 699         tt->setSelectionRange(replacestring.length());
 700
 701         // Go back so that replacement string is also spellchecked
 702         for (string::size_type i = 0; i < replacestring.length() + 1; ++i) {
 703                 tt->cursorLeft(this);
 704         }
 705         update(tt, BufferView::SELECT);
 706
 707         // FIXME: should be done through LFUN
 708         buffer()->markDirty();
 709         fitCursor();
 710 }
 711 // End of spellchecker stuff
 712
 713
 714 bool BufferView::lockInset(UpdatableInset * inset)
 715 {
 716         if (!inset)
 717                 return false;
 718         // don't relock if we're already locked
 719         if (theLockingInset() == inset)
 720                 return true;
 721         if (!theLockingInset()) {
 722                 // first check if it's the inset under the cursor we want lock
 723                 // should be most of the time
 724                 char const c = text->cursor.par()->getChar(text->cursor.pos());
 725                 if (c == Paragraph::META_INSET) {
 726                         Inset * in = text->cursor.par()->getInset(text->cursor.pos());
 727                         if (inset == in) {
 728                                 theLockingInset(inset);
 729                                 return true;
 730                         }
 731                 }
 732                 // Then do a deep look of the inset and lock the right one
 733                 int const id = inset->id();
 734                 ParagraphList::iterator pit = buffer()->paragraphs.begin();
 735                 ParagraphList::iterator pend = buffer()->paragraphs.end();
 736                 for (; pit != pend; ++pit) {
 737                         InsetList::iterator it = pit->insetlist.begin();
 738                         InsetList::iterator end = pit->insetlist.end();
 739                         for (; it != end; ++it) {
 740                                 if (it.getInset() == inset) {
 741                                         text->setCursorIntern(&*pit, it.getPos());
 742                                         theLockingInset(inset);
 743                                         return true;
 744                                 }
 745                                 if (it.getInset()->getInsetFromID(id)) {
 746                                         text->setCursorIntern(&*pit, it.getPos());
 747                                         it.getInset()->edit(this);
 748                                         return theLockingInset()->lockInsetInInset(this, inset);
 749                                 }
 750                         }
 751                 }
 752                 return false;
 753         }
 754         return theLockingInset()->lockInsetInInset(this, inset);
 755 }
 756
 757
 758 void BufferView::showLockedInsetCursor(int x, int y, int asc, int desc)
 759 {
 760         if (available() && theLockingInset() && !theLockingInset()->nodraw()) {
 761                 LyXCursor cursor = text->cursor;
 762                 Inset * locking_inset = theLockingInset()->getLockingInset();
 763
 764                 if ((cursor.pos() - 1 >= 0) &&
 765                     cursor.par()->isInset(cursor.pos() - 1) &&
 766                     (cursor.par()->getInset(cursor.pos() - 1) ==
 767                      locking_inset))
 768                         text->setCursor(cursor,
 769                                         cursor.par(), cursor.pos() - 1);
 770                 LyXScreen::Cursor_Shape shape = LyXScreen::BAR_SHAPE;
 771                 LyXText * txt = getLyXText();
 772                 if (locking_inset->isTextInset() &&
 773                     locking_inset->lyxCode() != Inset::ERT_CODE &&
 774                     (txt->real_current_font.language() !=
 775                      buffer()->params.language
 776                      || txt->real_current_font.isVisibleRightToLeft()
 777                      != buffer()->params.language->RightToLeft()))
 778                         shape = (txt->real_current_font.isVisibleRightToLeft())
 779                                 ? LyXScreen::REVERSED_L_SHAPE
 780                                 : LyXScreen::L_SHAPE;
 781                 y += cursor.iy() + theLockingInset()->insetInInsetY();
 782                 screen().showManualCursor(text, x, y, asc, desc,
 783                                                   shape);
 784         }
 785 }
 786
 787
 788 void BufferView::hideLockedInsetCursor()
 789 {
 790         if (theLockingInset() && available()) {
 791                 screen().hideCursor();
 792         }
 793 }
 794
 795
 796 bool BufferView::fitLockedInsetCursor(int x, int y, int asc, int desc)
 797 {
 798         if (theLockingInset() && available()) {
 799                 y += text->cursor.iy() + theLockingInset()->insetInInsetY();
 800                 if (screen().fitManualCursor(this, text, x, y, asc, desc)) {
 801                         updateScrollbar();
 802                         return true;
 803                 }
 804         }
 805         return false;
 806 }
 807
 808
 809 int BufferView::unlockInset(UpdatableInset * inset)
 810 {
 811         if (!inset)
 812                 return 0;
 813         if (inset && theLockingInset() == inset) {
 814                 inset->insetUnlock(this);
 815                 theLockingInset(0);
 816                 // make sure we update the combo !
 817                 owner()->setLayout(getLyXText()->cursor.par()->layout()->name());
 818                 // Tell the paragraph dialog that we changed paragraph
 819                 dispatch(FuncRequest(LFUN_PARAGRAPH_UPDATE));
 820                 finishUndo();
 821                 return 0;
 822         } else if (inset && theLockingInset() &&
 823                    theLockingInset()->unlockInsetInInset(this, inset)) {
 824                 // Tell the paragraph dialog that we changed paragraph
 825                 dispatch(FuncRequest(LFUN_PARAGRAPH_UPDATE));
 826                 // owner inset has updated the layout combo
 827                 finishUndo();
 828                 return 0;
 829         }
 830         return 1;
 831 }
 832
 833
 834 void BufferView::lockedInsetStoreUndo(Undo::undo_kind kind)
 835 {
 836         if (!theLockingInset())
 837                 return; // shouldn't happen
 838         if (kind == Undo::EDIT) // in this case insets would not be stored!
 839                 kind = Undo::FINISH;
 840         setUndo(this, kind,
 841                 text->cursor.par(),
 842                 text->cursor.par()->next());
 843 }
 844
 845
 846 void BufferView::updateInset(Inset * inset)
 847 {
 848         pimpl_->updateInset(inset);
 849 }
 850
 851
 852 bool BufferView::ChangeInsets(Inset::Code code,
 853                               string const & from, string const & to)
 854 {
 855         bool need_update = false;
 856         LyXCursor cursor = text->cursor;
 857         LyXCursor tmpcursor = cursor;
 858         cursor.par(tmpcursor.par());
 859         cursor.pos(tmpcursor.pos());
 860
 861         ParIterator end = buffer()->par_iterator_end();
 862         for (ParIterator it = buffer()->par_iterator_begin();
 863              it != end; ++it) {
 864                 Paragraph * par = *it;
 865                 bool changed_inset = false;
 866                 for (InsetList::iterator it2 = par->insetlist.begin();
 867                      it2 != par->insetlist.end(); ++it2) {
 868                         if (it2.getInset()->lyxCode() == code) {
 869                                 InsetCommand * inset = static_cast<InsetCommand *>(it2.getInset());
 870                                 if (inset->getContents() == from) {
 871                                         inset->setContents(to);
 872                                         changed_inset = true;
 873                                 }
 874                         }
 875                 }
 876                 if (changed_inset) {
 877                         need_update = true;
 878
 879                         // FIXME
 880
 881                         // The test it.size()==1 was needed to prevent crashes.
 882                         // How to set the cursor corretly when it.size()>1 ??
 883                         if (it.size() == 1) {
 884                                 text->setCursorIntern(par, 0);
 885                                 text->redoParagraphs(text->cursor,
 886                                                      text->cursor.par()->next());
 887                                 text->fullRebreak();
 888                         }
 889                 }
 890         }
 891         text->setCursorIntern(cursor.par(), cursor.pos());
 892         return need_update;
 893 }
 894
 895
 896 bool BufferView::ChangeRefsIfUnique(string const & from, string const & to)
 897 {
 898         // Check if the label 'from' appears more than once
 899         vector<string> labels = buffer()->getLabelList();
 900
 901         if (lyx::count(labels.begin(), labels.end(), from) > 1)
 902                 return false;
 903
 904         return ChangeInsets(Inset::REF_CODE, from, to);
 905 }
 906
 907
 908 bool BufferView::ChangeCitationsIfUnique(string const & from, string const & to)
 909 {
 910         typedef pair<string, string> StringPair;
 911
 912         vector<StringPair> keys;
 913         buffer()->fillWithBibKeys(keys);
 914         if (count_if(keys.begin(), keys.end(),
 915                      lyx::equal_1st_in_pair<StringPair>(from))
 916             > 1)
 917                 return false;
 918
 919         return ChangeInsets(Inset::CITE_CODE, from, to);
 920 }
 921
 922
 923 UpdatableInset * BufferView::theLockingInset() const
 924 {
 925         // If NULL is not allowed we should put an Assert here. (Lgb)
 926         if (text)
 927                 return text->the_locking_inset;
 928         return 0;
 929 }
 930
 931
 932 void BufferView::theLockingInset(UpdatableInset * inset)
 933 {
 934         text->the_locking_inset = inset;
 935 }
 936
 937
 938 LyXText * BufferView::getLyXText() const
 939 {
 940         if (theLockingInset()) {
 941                 LyXText * txt = theLockingInset()->getLyXText(this, true);
 942                 if (txt)
 943                         return txt;
 944         }
 945         return text;
 946 }
 947
 948
 949 LyXText * BufferView::getParentText(Inset * inset) const
 950 {
 951         if (inset->owner()) {
 952                 LyXText * txt = inset->getLyXText(this);
 953                 inset = inset->owner();
 954                 while (inset && inset->getLyXText(this) == txt)
 955                         inset = inset->owner();
 956                 if (inset)
 957                         return inset->getLyXText(this);
 958         }
 959         return text;
 960 }
 961
 962
 963 Language const * BufferView::getParentLanguage(Inset * inset) const
 964 {
 965         LyXText * text = getParentText(inset);
 966         return text->cursor.par()->getFontSettings(buffer()->params,
 967                                                    text->cursor.pos()).language();
 968 }
 969
 970
 971 Encoding const * BufferView::getEncoding() const
 972 {
 973         LyXText * t = getLyXText();
 974         if (!t)
 975                 return 0;
 976
 977         LyXCursor const & c= t->cursor;
 978         LyXFont const font = c.par()->getFont(buffer()->params, c.pos());
 979         return font.language()->encoding();
 980 }
 981
 982
 983 void BufferView::haveSelection(bool sel)
 984 {
 985         pimpl_->workarea().haveSelection(sel);
 986 }
 987
 988
 989 int BufferView::workHeight() const
 990 {
 991         return pimpl_->workarea().workHeight();
 992 }