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 "WordLangTuple.h"
  18 #include "buffer.h"
  19 #include "bufferlist.h"
  20 #include "debug.h"
  21 #include "gettext.h"
  22 #include "iterators.h"
  23 #include "language.h"
  24 #include "lyxcursor.h"
  25 #include "lyxlex.h"
  26 #include "lyxtext.h"
  27 #include "undo_funcs.h"
  28 #include "changes.h"
  29
  30 #include "frontends/Alert.h"
  31 #include "frontends/Dialogs.h"
  32 #include "frontends/LyXView.h"
  33 #include "frontends/WorkArea.h"
  34 #include "frontends/screen.h"
  35
  36 #include "insets/insetcommand.h" // ChangeRefs
  37 #include "insets/inseterror.h"
  38 #include "insets/updatableinset.h"
  39
  40 #include "support/FileInfo.h"
  41 #include "support/filetools.h"
  42 #include "support/lyxfunctional.h" // equal_1st_in_pair
  43 #include "support/types.h"
  44 #include "support/lyxalgo.h" // lyx_count
  45
  46 #include <fstream>
  47
  48 extern BufferList bufferlist;
  49
  50 using lyx::pos_type;
  51
  52 using std::pair;
  53 using std::endl;
  54 using std::ifstream;
  55 using std::vector;
  56 using std::find;
  57 using std::count_if;
  58
  59
  60 BufferView::BufferView(LyXView * owner, int xpos, int ypos,
  61                        int width, int height)
  62         : pimpl_(new Pimpl(this, owner, xpos, ypos, width, height))
  63 {
  64         text = 0;
  65 }
  66
  67
  68 BufferView::~BufferView()
  69 {
  70         delete text;
  71         delete pimpl_;
  72 }
  73
  74
  75 Buffer * BufferView::buffer() const
  76 {
  77         return pimpl_->buffer_;
  78 }
  79
  80
  81 LyXScreen & BufferView::screen() const
  82 {
  83         return pimpl_->screen();
  84 }
  85
  86
  87 LyXView * BufferView::owner() const
  88 {
  89         return pimpl_->owner_;
  90 }
  91
  92
  93 Painter & BufferView::painter() const
  94 {
  95         return pimpl_->painter();
  96 }
  97
  98
  99 void BufferView::buffer(Buffer * b)
 100 {
 101         pimpl_->buffer(b);
 102 }
 103
 104
 105 void BufferView::resize()
 106 {
 107         if (pimpl_->buffer_) {
 108                 pimpl_->resizeCurrentBuffer();
 109         }
 110 }
 111
 112
 113 void BufferView::repaint()
 114 {
 115         pimpl_->repaint();
 116 }
 117
 118
 119 bool BufferView::fitCursor()
 120 {
 121         return pimpl_->fitCursor();
 122 }
 123
 124
 125 void BufferView::update()
 126 {
 127         pimpl_->update();
 128 }
 129
 130
 131 void BufferView::updateScrollbar()
 132 {
 133         pimpl_->updateScrollbar();
 134 }
 135
 136
 137 void BufferView::scrollDocView(int value)
 138 {
 139         pimpl_->scrollDocView(value);
 140 }
 141
 142
 143 void BufferView::redoCurrentBuffer()
 144 {
 145         pimpl_->redoCurrentBuffer();
 146 }
 147
 148
 149 bool BufferView::available() const
 150 {
 151         return pimpl_->available();
 152 }
 153
 154
 155 Change const BufferView::getCurrentChange()
 156 {
 157         return pimpl_->getCurrentChange();
 158 }
 159
 160
 161 void BufferView::beforeChange(LyXText * text)
 162 {
 163         pimpl_->beforeChange(text);
 164 }
 165
 166
 167 void BufferView::savePosition(unsigned int i)
 168 {
 169         pimpl_->savePosition(i);
 170 }
 171
 172
 173 void BufferView::restorePosition(unsigned int i)
 174 {
 175         pimpl_->restorePosition(i);
 176 }
 177
 178
 179 bool BufferView::isSavedPosition(unsigned int i)
 180 {
 181         return pimpl_->isSavedPosition(i);
 182 }
 183
 184
 185 void BufferView::update(LyXText * text, UpdateCodes f)
 186 {
 187         pimpl_->update(text, f);
 188 }
 189
 190
 191 void BufferView::switchKeyMap()
 192 {
 193         pimpl_->switchKeyMap();
 194 }
 195
 196
 197 void BufferView::insetUnlock()
 198 {
 199         pimpl_->insetUnlock();
 200 }
 201
 202
 203 int BufferView::workWidth() const
 204 {
 205         return pimpl_->workarea().workWidth();
 206 }
 207
 208
 209 void BufferView::showCursor()
 210 {
 211         pimpl_->showCursor();
 212 }
 213
 214
 215 void BufferView::hideCursor()
 216 {
 217         pimpl_->hideCursor();
 218 }
 219
 220
 221 void BufferView::toggleSelection(bool b)
 222 {
 223         pimpl_->toggleSelection(b);
 224 }
 225
 226
 227 void BufferView::toggleToggle()
 228 {
 229         pimpl_->toggleToggle();
 230 }
 231
 232
 233 void BufferView::center()
 234 {
 235         pimpl_->center();
 236 }
 237
 238
 239 string const BufferView::getClipboard() const
 240 {
 241         return pimpl_->workarea().getClipboard();
 242 }
 243
 244
 245 void BufferView::stuffClipboard(string const & stuff) const
 246 {
 247         pimpl_->stuffClipboard(stuff);
 248 }
 249
 250
 251 BufferView::UpdateCodes operator|(BufferView::UpdateCodes uc1,
 252                                   BufferView::UpdateCodes uc2)
 253 {
 254         return static_cast<BufferView::UpdateCodes>
 255                 (static_cast<int>(uc1) | static_cast<int>(uc2));
 256 }
 257
 258
 259 bool BufferView::dispatch(FuncRequest const & ev)
 260 {
 261         return pimpl_->dispatch(ev);
 262 }
 263
 264
 265 void BufferView::scroll(int lines)
 266 {
 267         pimpl_->scroll(lines);
 268 }
 269
 270
 271 // Inserts a file into current document
 272 bool BufferView::insertLyXFile(string const & filen)
 273         //
 274         // Copyright CHT Software Service GmbH
 275         // Uwe C. Schroeder
 276         //
 277         // Insert a LyXformat - file into current buffer
 278         //
 279         // Moved from lyx_cb.C (Lgb)
 280 {
 281         if (filen.empty())
 282                 return false;
 283
 284         string const fname = MakeAbsPath(filen);
 285
 286         // check if file exist
 287         FileInfo const fi(fname);
 288
 289         if (!fi.readable()) {
 290                 Alert::alert(_("Error!"),
 291                            _("Specified file is unreadable: "),
 292                            MakeDisplayPath(fname, 50));
 293                 return false;
 294         }
 295
 296         beforeChange(text);
 297
 298         ifstream ifs(fname.c_str());
 299         if (!ifs) {
 300                 Alert::err_alert(_("Error! Cannot open specified file:"),
 301                            MakeDisplayPath(fname, 50));
 302                 return false;
 303         }
 304
 305         int const c = ifs.peek();
 306
 307         LyXLex lex(0, 0);
 308         lex.setStream(ifs);
 309
 310         bool res = true;
 311
 312         if (c == '#') {
 313                 lyxerr[Debug::INFO] << "Will insert file with header" << endl;
 314                 res = buffer()->readFile(lex, fname, text->cursor.par());
 315         } else {
 316                 lyxerr[Debug::INFO] << "Will insert file without header"
 317                                     << endl;
 318                 res = buffer()->readLyXformat2(lex, text->cursor.par());
 319         }
 320
 321         resize();
 322         return res;
 323 }
 324
 325
 326 bool BufferView::removeAutoInsets()
 327 {
 328         // keep track of which pos and par the cursor was on
 329         Paragraph * cursor_par = text->cursor.par();
 330         Paragraph * cursor_par_prev = cursor_par ? cursor_par->previous() : 0;
 331         Paragraph * cursor_par_next = cursor_par ? cursor_par->next() : 0;
 332         pos_type cursor_pos = text->cursor.pos();
 333
 334         bool found = false;
 335
 336         // Trap the deletion of the paragraph the cursor is in.
 337         // Iterate until we find a paragraph that won't be immediately deleted.
 338         // In reality this should mean we only execute the body of the while
 339         // loop once at most.  However for safety we iterate rather than just
 340         // make this an if () conditional.
 341         while ((cursor_par_prev || cursor_par_next)
 342                && text->setCursor(this,
 343                                   cursor_par_prev ? cursor_par_prev : cursor_par_next,
 344                                   0)) {
 345                 // We just removed cursor_par so have to fix the "cursor"
 346                 if (cursor_par_prev) {
 347                         // '.' = cursor_par
 348                         //  a -> a.
 349                         // .
 350                         cursor_par = cursor_par_prev;
 351                         cursor_pos = cursor_par->size();
 352                 } else {
 353                         // .  -> .a
 354                         //  a
 355                         cursor_par = cursor_par_next;
 356                         cursor_pos = 0;
 357                 }
 358                 cursor_par_prev = cursor_par->previous();
 359                 cursor_par_next = cursor_par->next();
 360         }
 361
 362         // Iterate through the paragraphs removing autoDelete insets as we go.
 363         // If the paragraph ends up empty after all the autoDelete insets are
 364         // removed that paragraph will be removed by the next setCursor() call.
 365         ParIterator it = buffer()->par_iterator_begin();
 366         ParIterator end = buffer()->par_iterator_end();
 367         for (; it != end; ++it) {
 368                 Paragraph * par = *it;
 369                 Paragraph * par_prev = par ? par->previous() : 0;
 370                 bool removed = false;
 371
 372                 if (text->setCursor(this, par, 0)
 373                     && cursor_par == par_prev) {
 374                         // The previous setCursor line was deleted and that
 375                         // was the cursor_par line.  This can only happen if an
 376                         // error box was the sole item on cursor_par.
 377                         // It is possible for cursor_par_prev to be stray if
 378                         // the line it pointed to only had a error box on it
 379                         // so we have to set it to a known correct value.
 380                         // This is often the same value it already had.
 381                         cursor_par_prev = par->previous();
 382                         if (cursor_par_prev) {
 383                                 // '|' = par, '.' = cursor_par, 'E' = error box
 384                                 // First step below may occur before while{}
 385                                 //  a    |a      a     a     a.
 386                                 //  E -> .E -> |.E -> .  -> |b
 387                                 // .      b      b    |b
 388                                 //  b
 389                                 cursor_par = cursor_par_prev;
 390                                 cursor_pos = cursor_par_prev->size();
 391                                 cursor_par_prev = cursor_par->previous();
 392                                 // cursor_par_next remains the same
 393                         } else if (cursor_par_next) {
 394                                 // First step below may occur before while{}
 395                                 // .
 396                                 //  E -> |.E -> |.  -> . -> .|a
 397                                 //  a      a      a    |a
 398                                 cursor_par = cursor_par_next;
 399                                 cursor_pos = 0;
 400                                 // cursor_par_prev remains unset
 401                                 cursor_par_next = cursor_par->next();
 402                         } else {
 403                                 // I can't find a way to trigger this
 404                                 // so it should be unreachable code
 405                                 // unless the buffer is corrupted.
 406                                 lyxerr << "BufferView::removeAutoInsets() is bad\n";
 407                         }
 408                 }
 409
 410                 InsetList::iterator pit = par->insetlist.begin();
 411                 InsetList::iterator pend = par->insetlist.end();
 412
 413                 while (pit != pend) {
 414                         if (pit.getInset()->autoDelete()) {
 415                                 removed = true;
 416                                 pos_type const pos = pit.getPos();
 417
 418                                 par->erase(pos);
 419                                 // We just invalidated par's inset iterators so
 420                                 // we get the next valid iterator position
 421                                 pit = par->insetlist.insetIterator(pos);
 422                                 // and ensure we have a valid end iterator.
 423                                 pend = par->insetlist.end();
 424
 425                                 if (cursor_par == par) {
 426                                         // update the saved cursor position
 427                                         if (cursor_pos > pos)
 428                                                 --cursor_pos;
 429                                 }
 430                         } else {
 431                                 ++pit;
 432                         }
 433                 }
 434                 if (removed) {
 435                         found = true;
 436                         text->redoParagraph(this);
 437                 }
 438         }
 439
 440         // It is possible that the last line is empty if it was cursor_par
 441         // and/or only had an error inset on it.  So we set the cursor to the
 442         // start of the doc to force its removal and ensure a valid saved cursor
 443         if (text->setCursor(this, text->ownerParagraph(), 0)
 444             && 0 == cursor_par_next) {
 445                 cursor_par = cursor_par_prev;
 446                 cursor_pos = cursor_par->size();
 447         } else if (cursor_pos > cursor_par->size()) {
 448                 // Some C-Enter lines were removed by the setCursor call which
 449                 // then invalidated cursor_pos. It could still be "wrong" because
 450                 // the cursor may appear to have jumped but since we collapsed
 451                 // some C-Enter lines this should be a reasonable compromise.
 452                 cursor_pos = cursor_par->size();
 453         }
 454
 455         // restore the original cursor in its corrected location.
 456         text->setCursorIntern(this, cursor_par, cursor_pos);
 457
 458         return found;
 459 }
 460
 461
 462 void BufferView::insertErrors(TeXErrors & terr)
 463 {
 464         // Save the cursor position
 465         LyXCursor cursor = text->cursor;
 466
 467         TeXErrors::Errors::const_iterator cit = terr.begin();
 468         TeXErrors::Errors::const_iterator end = terr.end();
 469         for (; cit != end; ++cit) {
 470                 string const desctext(cit->error_desc);
 471                 string const errortext(cit->error_text);
 472                 string const msgtxt = desctext + '\n' + errortext;
 473                 int const errorrow = cit->error_in_line;
 474
 475                 // Insert error string for row number
 476                 int tmpid = -1;
 477                 int tmppos = -1;
 478
 479                 if (buffer()->texrow.getIdFromRow(errorrow, tmpid, tmppos)) {
 480                         buffer()->texrow.increasePos(tmpid, tmppos);
 481                 }
 482
 483                 Paragraph * texrowpar = 0;
 484
 485                 if (tmpid == -1) {
 486                         texrowpar = text->ownerParagraph();
 487                         tmppos = 0;
 488                 } else {
 489                         texrowpar = buffer()->getParFromID(tmpid);
 490                 }
 491
 492                 if (texrowpar == 0)
 493                         continue;
 494
 495                 freezeUndo();
 496                 InsetError * new_inset = new InsetError(msgtxt);
 497                 text->setCursorIntern(this, texrowpar, tmppos);
 498                 text->insertInset(this, new_inset);
 499                 text->fullRebreak(this);
 500                 unFreezeUndo();
 501         }
 502         // Restore the cursor position
 503         text->setCursorIntern(this, cursor.par(), cursor.pos());
 504 }
 505
 506
 507 void BufferView::setCursorFromRow(int row)
 508 {
 509         int tmpid = -1;
 510         int tmppos = -1;
 511
 512         buffer()->texrow.getIdFromRow(row, tmpid, tmppos);
 513
 514         Paragraph * texrowpar;
 515
 516         if (tmpid == -1) {
 517                 texrowpar = text->ownerParagraph();
 518                 tmppos = 0;
 519         } else {
 520                 texrowpar = buffer()->getParFromID(tmpid);
 521         }
 522         text->setCursor(this, texrowpar, tmppos);
 523 }
 524
 525
 526 bool BufferView::insertInset(Inset * inset, string const & lout)
 527 {
 528         return pimpl_->insertInset(inset, lout);
 529 }
 530
 531
 532 // This is also a buffer property (ale)
 533 // Not so sure about that. a goto Label function can not be buffer local, just
 534 // think how this will work in a multiwindow/buffer environment, all the
 535 // cursors in all the views showing this buffer will move. (Lgb)
 536 // OK, then no cursor action should be allowed in buffer. (ale)
 537 bool BufferView::gotoLabel(string const & label)
 538 {
 539         for (Buffer::inset_iterator it = buffer()->inset_iterator_begin();
 540              it != buffer()->inset_iterator_end(); ++it) {
 541                 vector<string> labels = it->getLabelList();
 542                 if (find(labels.begin(),labels.end(),label)
 543                      != labels.end()) {
 544                         beforeChange(text);
 545                         text->setCursor(this, it.getPar(), it.getPos());
 546                         text->selection.cursor = text->cursor;
 547                         update(text, BufferView::SELECT|BufferView::FITCUR);
 548                         return true;
 549                 }
 550         }
 551         return false;
 552 }
 553
 554
 555 void BufferView::undo()
 556 {
 557         if (!available())
 558                 return;
 559
 560         owner()->message(_("Undo"));
 561         hideCursor();
 562         beforeChange(text);
 563         update(text, BufferView::SELECT|BufferView::FITCUR);
 564         if (!textUndo(this))
 565                 owner()->message(_("No further undo information"));
 566         else
 567                 update(text, BufferView::SELECT|BufferView::FITCUR|BufferView::CHANGE);
 568         switchKeyMap();
 569 }
 570
 571
 572 void BufferView::redo()
 573 {
 574         if (!available())
 575                 return;
 576
 577         owner()->message(_("Redo"));
 578         hideCursor();
 579         beforeChange(text);
 580         update(text, BufferView::SELECT|BufferView::FITCUR);
 581         if (!textRedo(this))
 582                 owner()->message(_("No further redo information"));
 583         else
 584                 update(text, BufferView::SELECT|BufferView::FITCUR|BufferView::CHANGE);
 585         switchKeyMap();
 586 }
 587
 588
 589 void BufferView::copyEnvironment()
 590 {
 591         if (available()) {
 592                 text->copyEnvironmentType();
 593                 owner()->message(_("Paragraph environment type copied"));
 594         }
 595 }
 596
 597
 598 void BufferView::pasteEnvironment()
 599 {
 600         if (available()) {
 601                 text->pasteEnvironmentType(this);
 602                 owner()->message(_("Paragraph environment type set"));
 603                 update(text, BufferView::SELECT|BufferView::FITCUR|BufferView::CHANGE);
 604         }
 605 }
 606
 607
 608 // these functions are for the spellchecker
 609 WordLangTuple const BufferView::nextWord(float & value)
 610 {
 611         if (!available()) {
 612                 value = 1;
 613                 return WordLangTuple();
 614         }
 615
 616         return text->selectNextWordToSpellcheck(this, value);
 617 }
 618
 619
 620 void BufferView::selectLastWord()
 621 {
 622         if (!available())
 623                 return;
 624
 625         LyXCursor cur = text->selection.cursor;
 626         hideCursor();
 627         beforeChange(text);
 628         text->selection.cursor = cur;
 629         text->selectSelectedWord(this);
 630         toggleSelection(false);
 631         update(text, BufferView::SELECT|BufferView::FITCUR);
 632 }
 633
 634
 635 void BufferView::endOfSpellCheck()
 636 {
 637         if (!available()) return;
 638
 639         hideCursor();
 640         beforeChange(text);
 641         text->selectSelectedWord(this);
 642         text->clearSelection();
 643         update(text, BufferView::SELECT|BufferView::FITCUR);
 644 }
 645
 646
 647 void BufferView::replaceWord(string const & replacestring)
 648 {
 649         if (!available())
 650                 return;
 651
 652         LyXText * tt = getLyXText();
 653         hideCursor();
 654         update(tt, BufferView::SELECT|BufferView::FITCUR);
 655
 656         // clear the selection (if there is any)
 657         toggleSelection(false);
 658         update(tt, BufferView::SELECT|BufferView::FITCUR);
 659
 660         // clear the selection (if there is any)
 661         toggleSelection(false);
 662         tt->replaceSelectionWithString(this, replacestring);
 663
 664         tt->setSelectionRange(this, replacestring.length());
 665
 666         // Go back so that replacement string is also spellchecked
 667         for (string::size_type i = 0; i < replacestring.length() + 1; ++i) {
 668                 tt->cursorLeft(this);
 669         }
 670         update(tt, BufferView::SELECT|BufferView::FITCUR|BufferView::CHANGE);
 671 }
 672 // End of spellchecker stuff
 673
 674
 675 bool BufferView::lockInset(UpdatableInset * inset)
 676 {
 677         if (!inset)
 678                 return false;
 679         // don't relock if we're already locked
 680         if (theLockingInset() == inset)
 681                 return true;
 682         if (!theLockingInset()) {
 683                 // first check if it's the inset under the cursor we want lock
 684                 // should be most of the time
 685                 char const c = text->cursor.par()->getChar(text->cursor.pos());
 686                 if (c == Paragraph::META_INSET) {
 687                         Inset * in = text->cursor.par()->getInset(text->cursor.pos());
 688                         if (inset == in) {
 689                                 theLockingInset(inset);
 690                                 return true;
 691                         }
 692                 }
 693                 // Then do a deep look of the inset and lock the right one
 694                 int const id = inset->id();
 695                 ParagraphList::iterator pit = buffer()->paragraphs.begin();
 696                 ParagraphList::iterator pend = buffer()->paragraphs.end();
 697                 for (; pit != pend; ++pit) {
 698                         InsetList::iterator it = pit->insetlist.begin();
 699                         InsetList::iterator end = pit->insetlist.end();
 700                         for (; it != end; ++it) {
 701                                 if (it.getInset() == inset) {
 702                                         text->setCursorIntern(this, &*pit, it.getPos());
 703                                         theLockingInset(inset);
 704                                         return true;
 705                                 }
 706                                 if (it.getInset()->getInsetFromID(id)) {
 707                                         text->setCursorIntern(this, &*pit, it.getPos());
 708                                         it.getInset()->edit(this);
 709                                         return theLockingInset()->lockInsetInInset(this, inset);
 710                                 }
 711                         }
 712                 }
 713                 return false;
 714         }
 715         return theLockingInset()->lockInsetInInset(this, inset);
 716 }
 717
 718
 719 void BufferView::showLockedInsetCursor(int x, int y, int asc, int desc)
 720 {
 721         if (available() && theLockingInset() && !theLockingInset()->nodraw()) {
 722                 LyXCursor cursor = text->cursor;
 723                 Inset * locking_inset = theLockingInset()->getLockingInset();
 724
 725                 if ((cursor.pos() - 1 >= 0) &&
 726                     cursor.par()->isInset(cursor.pos() - 1) &&
 727                     (cursor.par()->getInset(cursor.pos() - 1) ==
 728                      locking_inset))
 729                         text->setCursor(this, cursor,
 730                                         cursor.par(), cursor.pos() - 1);
 731                 LyXScreen::Cursor_Shape shape = LyXScreen::BAR_SHAPE;
 732                 LyXText * txt = getLyXText();
 733                 if (locking_inset->isTextInset() &&
 734                     locking_inset->lyxCode() != Inset::ERT_CODE &&
 735                     (txt->real_current_font.language() !=
 736                      buffer()->params.language
 737                      || txt->real_current_font.isVisibleRightToLeft()
 738                      != buffer()->params.language->RightToLeft()))
 739                         shape = (txt->real_current_font.isVisibleRightToLeft())
 740                                 ? LyXScreen::REVERSED_L_SHAPE
 741                                 : LyXScreen::L_SHAPE;
 742                 y += cursor.iy() + theLockingInset()->insetInInsetY();
 743                 screen().showManualCursor(text, x, y, asc, desc,
 744                                                   shape);
 745         }
 746 }
 747
 748
 749 void BufferView::hideLockedInsetCursor()
 750 {
 751         if (theLockingInset() && available()) {
 752                 screen().hideCursor();
 753         }
 754 }
 755
 756
 757 bool BufferView::fitLockedInsetCursor(int x, int y, int asc, int desc)
 758 {
 759         if (theLockingInset() && available()) {
 760                 y += text->cursor.iy() + theLockingInset()->insetInInsetY();
 761                 if (screen().fitManualCursor(this, text, x, y, asc, desc)) {
 762                         updateScrollbar();
 763                         return true;
 764                 }
 765         }
 766         return false;
 767 }
 768
 769
 770 int BufferView::unlockInset(UpdatableInset * inset)
 771 {
 772         if (!inset)
 773                 return 0;
 774         if (inset && theLockingInset() == inset) {
 775                 inset->insetUnlock(this);
 776                 theLockingInset(0);
 777                 // make sure we update the combo !
 778                 owner()->setLayout(getLyXText()->cursor.par()->layout()->name());
 779                 // Tell the paragraph dialog that we changed paragraph
 780                 owner()->getDialogs().updateParagraph();
 781                 finishUndo();
 782                 return 0;
 783         } else if (inset && theLockingInset() &&
 784                    theLockingInset()->unlockInsetInInset(this, inset)) {
 785                 // Tell the paragraph dialog that we changed paragraph
 786                 owner()->getDialogs().updateParagraph();
 787                 // owner inset has updated the layout combo
 788                 finishUndo();
 789                 return 0;
 790         }
 791         return 1;
 792 }
 793
 794
 795 void BufferView::lockedInsetStoreUndo(Undo::undo_kind kind)
 796 {
 797         if (!theLockingInset())
 798                 return; // shouldn't happen
 799         if (kind == Undo::EDIT) // in this case insets would not be stored!
 800                 kind = Undo::FINISH;
 801         setUndo(this, kind,
 802                 text->cursor.par(),
 803                 text->cursor.par()->next());
 804 }
 805
 806
 807 void BufferView::updateInset(Inset * inset, bool mark_dirty)
 808 {
 809         pimpl_->updateInset(inset, mark_dirty);
 810 }
 811
 812
 813 bool BufferView::ChangeInsets(Inset::Code code,
 814                               string const & from, string const & to)
 815 {
 816         bool need_update = false;
 817         LyXCursor cursor = text->cursor;
 818         LyXCursor tmpcursor = cursor;
 819         cursor.par(tmpcursor.par());
 820         cursor.pos(tmpcursor.pos());
 821
 822         ParIterator end = buffer()->par_iterator_end();
 823         for (ParIterator it = buffer()->par_iterator_begin();
 824              it != end; ++it) {
 825                 Paragraph * par = *it;
 826                 bool changed_inset = false;
 827                 for (InsetList::iterator it2 = par->insetlist.begin();
 828                      it2 != par->insetlist.end(); ++it2) {
 829                         if (it2.getInset()->lyxCode() == code) {
 830                                 InsetCommand * inset = static_cast<InsetCommand *>(it2.getInset());
 831                                 if (inset->getContents() == from) {
 832                                         inset->setContents(to);
 833                                         changed_inset = true;
 834                                 }
 835                         }
 836                 }
 837                 if (changed_inset) {
 838                         need_update = true;
 839
 840                         // FIXME
 841
 842                         // The test it.size()==1 was needed to prevent crashes.
 843                         // How to set the cursor corretly when it.size()>1 ??
 844                         if (it.size() == 1) {
 845                                 text->setCursorIntern(this, par, 0);
 846                                 text->redoParagraphs(this, text->cursor,
 847                                                      text->cursor.par()->next());
 848                                 text->fullRebreak(this);
 849                         }
 850                 }
 851         }
 852         text->setCursorIntern(this, cursor.par(), cursor.pos());
 853         return need_update;
 854 }
 855
 856
 857 bool BufferView::ChangeRefsIfUnique(string const & from, string const & to)
 858 {
 859         // Check if the label 'from' appears more than once
 860         vector<string> labels = buffer()->getLabelList();
 861
 862         if (lyx::count(labels.begin(), labels.end(), from) > 1)
 863                 return false;
 864
 865         return ChangeInsets(Inset::REF_CODE, from, to);
 866 }
 867
 868
 869 bool BufferView::ChangeCitationsIfUnique(string const & from, string const & to)
 870 {
 871         typedef pair<string, string> StringPair;
 872
 873         vector<StringPair> keys;
 874         buffer()->fillWithBibKeys(keys);
 875         if (count_if(keys.begin(), keys.end(),
 876                      lyx::equal_1st_in_pair<StringPair>(from))
 877             > 1)
 878                 return false;
 879
 880         return ChangeInsets(Inset::CITE_CODE, from, to);
 881 }
 882
 883
 884 UpdatableInset * BufferView::theLockingInset() const
 885 {
 886         // If NULL is not allowed we should put an Assert here. (Lgb)
 887         if (text)
 888                 return text->the_locking_inset;
 889         return 0;
 890 }
 891
 892
 893 void BufferView::theLockingInset(UpdatableInset * inset)
 894 {
 895         text->the_locking_inset = inset;
 896 }
 897
 898
 899 LyXText * BufferView::getLyXText() const
 900 {
 901         if (theLockingInset()) {
 902                 LyXText * txt = theLockingInset()->getLyXText(this, true);
 903                 if (txt)
 904                         return txt;
 905         }
 906         return text;
 907 }
 908
 909
 910 LyXText * BufferView::getParentText(Inset * inset) const
 911 {
 912         if (inset->owner()) {
 913                 LyXText * txt = inset->getLyXText(this);
 914                 inset = inset->owner();
 915                 while (inset && inset->getLyXText(this) == txt)
 916                         inset = inset->owner();
 917                 if (inset)
 918                         return inset->getLyXText(this);
 919         }
 920         return text;
 921 }
 922
 923
 924 Language const * BufferView::getParentLanguage(Inset * inset) const
 925 {
 926         LyXText * text = getParentText(inset);
 927         return text->cursor.par()->getFontSettings(buffer()->params,
 928                                                    text->cursor.pos()).language();
 929 }
 930
 931
 932 Encoding const * BufferView::getEncoding() const
 933 {
 934         LyXText * t = getLyXText();
 935         if (!t)
 936                 return 0;
 937
 938         LyXCursor const & c= t->cursor;
 939         LyXFont const font = c.par()->getFont(buffer()->params, c.pos());
 940         return font.language()->encoding();
 941 }
 942
 943
 944 void BufferView::haveSelection(bool sel)
 945 {
 946         pimpl_->workarea().haveSelection(sel);
 947 }
 948
 949
 950 int BufferView::workHeight() const
 951 {
 952         return pimpl_->workarea().workHeight();
 953 }