src/insets/insettext.C

   1 /**
   2  * \file insettext.C
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author Jürgen Vigna
   7  *
   8  * Full author contact details are available in file CREDITS.
   9  */
  10
  11 #include <config.h>
  12
  13 #include "insettext.h"
  14 #include "insetnewline.h"
  15
  16 #include "buffer.h"
  17 #include "bufferparams.h"
  18 #include "BufferView.h"
  19 #include "CutAndPaste.h"
  20 #include "cursor.h"
  21 #include "debug.h"
  22 #include "dispatchresult.h"
  23 #include "errorlist.h"
  24 #include "funcrequest.h"
  25 #include "gettext.h"
  26 #include "intl.h"
  27 #include "LColor.h"
  28 #include "lyxfind.h"
  29 #include "lyxlex.h"
  30 #include "lyxrc.h"
  31 #include "lyxtext.h"
  32 #include "metricsinfo.h"
  33 #include "output_docbook.h"
  34 #include "output_latex.h"
  35 #include "output_linuxdoc.h"
  36 #include "output_plaintext.h"
  37 #include "paragraph.h"
  38 #include "paragraph_funcs.h"
  39 #include "ParagraphParameters.h"
  40 #include "rowpainter.h"
  41 #include "sgml.h"
  42 #include "texrow.h"
  43 #include "undo.h"
  44
  45 #include "frontends/Alert.h"
  46 #include "frontends/font_metrics.h"
  47 #include "frontends/LyXView.h"
  48 #include "frontends/Painter.h"
  49
  50 #include "support/lyxalgo.h" // lyx::count
  51
  52 #include <boost/bind.hpp>
  53
  54 using bv_funcs::replaceSelection;
  55
  56 using lyx::pos_type;
  57
  58 using lyx::graphics::PreviewLoader;
  59
  60 using lyx::support::isStrUnsignedInt;
  61 using lyx::support::strToUnsignedInt;
  62
  63 using std::endl;
  64 using std::for_each;
  65 using std::max;
  66 using std::string;
  67 using std::auto_ptr;
  68 using std::ostream;
  69 using std::vector;
  70
  71
  72 InsetText::InsetText(BufferParams const & bp)
  73         : UpdatableInset(),
  74           paragraphs(1),
  75           autoBreakRows_(false),
  76           drawFrame_(NEVER),
  77           frame_color_(LColor::insetframe),
  78           text_(0, this, true, paragraphs)
  79 {
  80         textwidth_ = 0; // broken
  81         paragraphs.begin()->layout(bp.getLyXTextClass().defaultLayout());
  82         if (bp.tracking_changes)
  83                 paragraphs.begin()->trackChanges();
  84         init();
  85 }
  86
  87
  88 InsetText::InsetText(InsetText const & in)
  89         : UpdatableInset(in),
  90           text_(in.text_.bv_owner, this, true, paragraphs)
  91 {
  92         // this is ugly...
  93         operator=(in);
  94 }
  95
  96
  97 void InsetText::operator=(InsetText const & in)
  98 {
  99         UpdatableInset::operator=(in);
 100         paragraphs = in.paragraphs;
 101         autoBreakRows_ = in.autoBreakRows_;
 102         drawFrame_ = in.drawFrame_;
 103         frame_color_ = in.frame_color_;
 104         textwidth_ = in.textwidth_;
 105         text_ = LyXText(in.text_.bv_owner, this, true, paragraphs);
 106         init();
 107 }
 108
 109
 110 void InsetText::init()
 111 {
 112         ParagraphList::iterator pit = paragraphs.begin();
 113         ParagraphList::iterator end = paragraphs.end();
 114         for (; pit != end; ++pit)
 115                 pit->setInsetOwner(this);
 116         text_.paragraphs_ = &paragraphs;
 117         no_selection = true;
 118         old_par = -1;
 119         in_insetAllowed = false;
 120         mouse_x = 0;
 121         mouse_y = 0;
 122 }
 123
 124
 125 void InsetText::clear(bool just_mark_erased)
 126 {
 127         if (just_mark_erased) {
 128                 ParagraphList::iterator it = paragraphs.begin();
 129                 ParagraphList::iterator end = paragraphs.end();
 130                 for (; it != end; ++it)
 131                         it->markErased();
 132                 return;
 133         }
 134
 135         // This is a gross hack...
 136         LyXLayout_ptr old_layout = paragraphs.begin()->layout();
 137
 138         paragraphs.clear();
 139         paragraphs.push_back(Paragraph());
 140         paragraphs.begin()->setInsetOwner(this);
 141         paragraphs.begin()->layout(old_layout);
 142 }
 143
 144
 145 auto_ptr<InsetBase> InsetText::clone() const
 146 {
 147         return auto_ptr<InsetBase>(new InsetText(*this));
 148 }
 149
 150
 151 void InsetText::write(Buffer const & buf, ostream & os) const
 152 {
 153         os << "Text\n";
 154         writeParagraphData(buf, os);
 155 }
 156
 157
 158 void InsetText::writeParagraphData(Buffer const & buf, ostream & os) const
 159 {
 160         ParagraphList::const_iterator it = paragraphs.begin();
 161         ParagraphList::const_iterator end = paragraphs.end();
 162         Paragraph::depth_type dth = 0;
 163         for (; it != end; ++it) {
 164                 it->write(buf, os, buf.params(), dth);
 165         }
 166 }
 167
 168
 169 void InsetText::read(Buffer const & buf, LyXLex & lex)
 170 {
 171         string token;
 172         Paragraph::depth_type depth = 0;
 173
 174         clear(false);
 175
 176 #warning John, look here. Doesnt make much sense.
 177         if (buf.params().tracking_changes)
 178                 paragraphs.begin()->trackChanges();
 179
 180         // delete the initial paragraph
 181         Paragraph oldpar = *paragraphs.begin();
 182         paragraphs.clear();
 183         ParagraphList::iterator pit = paragraphs.begin();
 184
 185         while (lex.isOK()) {
 186                 lex.nextToken();
 187                 token = lex.getString();
 188                 if (token.empty())
 189                         continue;
 190                 if (token == "\\end_inset") {
 191                         break;
 192                 }
 193
 194                 if (token == "\\end_document") {
 195                         lex.printError("\\end_document read in inset! Error in document!");
 196                         return;
 197                 }
 198
 199                 // FIXME: ugly.
 200                 const_cast<Buffer&>(buf).readParagraph(lex, token, paragraphs, pit, depth);
 201         }
 202
 203         pit = paragraphs.begin();
 204         ParagraphList::iterator const end = paragraphs.end();
 205         for (; pit != end; ++pit)
 206                 pit->setInsetOwner(this);
 207
 208         if (token != "\\end_inset") {
 209                 lex.printError("Missing \\end_inset at this point. "
 210                                            "Read: `$$Token'");
 211         }
 212
 213         // sanity check
 214         // ensure we have at least one par.
 215         if (paragraphs.empty())
 216                 paragraphs.push_back(oldpar);
 217 }
 218
 219
 220 void InsetText::metrics(MetricsInfo & mi, Dimension & dim) const
 221 {
 222         //lyxerr << "InsetText::metrics: width: " << mi.base.textwidth << endl;
 223         textwidth_ = max(40, mi.base.textwidth - 30);
 224         BufferView * bv = mi.base.bv;
 225         setViewCache(bv);
 226         text_.metrics(mi, dim);
 227         dim.asc += TEXT_TO_INSET_OFFSET;
 228         dim.des += TEXT_TO_INSET_OFFSET;
 229         dim.wid += 2 * TEXT_TO_INSET_OFFSET;
 230         dim_ = dim;
 231 }
 232
 233
 234 int InsetText::textWidth() const
 235 {
 236         return textwidth_;
 237 }
 238
 239
 240 void InsetText::draw(PainterInfo & pi, int x, int y) const
 241 {
 242         // update our idea of where we are. Clearly, we should
 243         // not have to know this information.
 244         xo_ = x;
 245         yo_ = y;
 246
 247         int const start_x = x;
 248
 249         BufferView * bv = pi.base.bv;
 250         Painter & pain = pi.pain;
 251
 252         // repaint the background if needed
 253         if (backgroundColor() != LColor::background)
 254                 clearInset(bv, start_x + TEXT_TO_INSET_OFFSET, y);
 255
 256         bv->hideCursor();
 257
 258         if (!owner())
 259                 x += scroll();
 260
 261         x += TEXT_TO_INSET_OFFSET;
 262
 263         paintTextInset(*bv, text_, x, y);
 264
 265         if (drawFrame_ == ALWAYS || drawFrame_ == LOCKED)
 266                 drawFrame(pain, start_x);
 267 }
 268
 269
 270 void InsetText::drawFrame(Painter & pain, int x) const
 271 {
 272         int const ttoD2 = TEXT_TO_INSET_OFFSET / 2;
 273         int const frame_x = x + ttoD2;
 274         int const frame_y = yo_ - dim_.asc + ttoD2;
 275         int const frame_w = dim_.wid - TEXT_TO_INSET_OFFSET;
 276         int const frame_h = dim_.asc + dim_.des - TEXT_TO_INSET_OFFSET;
 277         pain.rectangle(frame_x, frame_y, frame_w, frame_h, frameColor());
 278 }
 279
 280
 281 void InsetText::updateLocal(BufferView * bv, bool /*mark_dirty*/)
 282 {
 283         if (!bv)
 284                 return;
 285
 286         if (!autoBreakRows_ && paragraphs.size() > 1)
 287                 collapseParagraphs(bv);
 288
 289         if (!text_.selection.set())
 290                 text_.selection.cursor = text_.cursor;
 291
 292 //      bv->fitCursor();
 293         bv->owner()->view_state_changed();
 294         bv->owner()->updateMenubar();
 295         bv->owner()->updateToolbar();
 296         if (old_par != text_.cursor.par()) {
 297                 bv->owner()->setLayout(cpar()->layout()->name());
 298                 old_par = text_.cursor.par();
 299         }
 300 }
 301
 302
 303 string const InsetText::editMessage() const
 304 {
 305         return _("Opened Text Inset");
 306 }
 307
 308
 309 void InsetText::sanitizeEmptyText(BufferView * bv)
 310 {
 311         if (paragraphs.size() == 1
 312                         && paragraphs.begin()->empty()
 313                         && bv->getParentLanguage(this) != text_.current_font.language()) {
 314                 LyXFont font(LyXFont::ALL_IGNORE);
 315                 font.setLanguage(bv->getParentLanguage(this));
 316                 setFont(bv, font, false);
 317         }
 318 }
 319
 320
 321 extern LCursor theTempCursor;
 322
 323 void InsetText::lfunMousePress(FuncRequest const & cmd)
 324 {
 325         lyxerr << "InsetText::lfunMousePress, inset: " << this << endl;
 326         no_selection = true;
 327
 328         // use this to check mouse motion for selection
 329         mouse_x = cmd.x;
 330         mouse_y = cmd.y;
 331
 332         BufferView * bv = cmd.view();
 333         no_selection = false;
 334         text_.clearSelection();
 335
 336         // set global cursor
 337         bv->cursor() = theTempCursor;
 338         lyxerr << "new global cursor: \n" << bv->cursor() << endl;
 339         text_.setCursorFromCoordinates(cmd.x, cmd.y);
 340 }
 341
 342
 343 void InsetText::lfunMouseMotion(FuncRequest const & cmd)
 344 {
 345         lyxerr << "InsetText::lfunMouseMotion, inset: " << this << endl;
 346         if (no_selection || (mouse_x == cmd.x && mouse_y == cmd.y))
 347                 return;
 348
 349         BufferView * bv = cmd.view();
 350         LyXCursor cur = text_.cursor;
 351         text_.setCursorFromCoordinates(cmd.x, cmd.y + dim_.asc);
 352         bv->x_target(text_.cursor.x());
 353         if (cur != text_.cursor) {
 354                 text_.setSelection();
 355                 updateLocal(bv, false);
 356         }
 357 }
 358
 359
 360 void InsetText::lfunMouseRelease(FuncRequest const &)
 361 {
 362         lyxerr << "InsetText::lfunMouseRelease, inset: " << this << endl;
 363         no_selection = true;
 364 }
 365
 366
 367 void InsetText::edit(BufferView * bv, bool left)
 368 {
 369         lyxerr << "InsetText: edit left/right" << endl;
 370         setViewCache(bv);
 371
 372         old_par = -1;
 373
 374         if (left)
 375                 text_.setCursorIntern(0, 0);
 376         else
 377                 text_.setCursor(paragraphs.size() - 1, paragraphs.back().size());
 378
 379         sanitizeEmptyText(bv);
 380         updateLocal(bv, false);
 381         bv->updateParagraphDialog();
 382 }
 383
 384
 385 void InsetText::edit(BufferView * bv, int x, int y)
 386 {
 387         lyxerr << "InsetText::edit xy" << endl;
 388         old_par = -1;
 389         sanitizeEmptyText(bv);
 390         text_.setCursorFromCoordinates(x, y + dim_.asc);
 391         text_.cursor.x(text_.cursor.x());
 392         bv->x_target(text_.cursor.x());
 393
 394         text_.clearSelection();
 395         finishUndo();
 396
 397         updateLocal(bv, false);
 398         bv->updateParagraphDialog();
 399 }
 400
 401
 402 DispatchResult InsetText::priv_dispatch(FuncRequest const & cmd,
 403         idx_type &, pos_type &)
 404 {
 405         lyxerr << "InsetText::priv_dispatch (begin), act: "
 406                 << cmd.action << " " << endl;
 407         BufferView * bv = cmd.view();
 408         setViewCache(bv);
 409         DispatchResult result;
 410         result.dispatched(true);
 411
 412         bool was_empty = paragraphs.begin()->empty() && paragraphs.size() == 1;
 413         if (cmd.action != LFUN_MOUSE_PRESS
 414                         && cmd.action != LFUN_MOUSE_MOTION
 415                         && cmd.action != LFUN_MOUSE_RELEASE)
 416                 no_selection = false;
 417
 418         switch (cmd.action) {
 419         case LFUN_MOUSE_PRESS:
 420                 lfunMousePress(cmd);
 421                 result = DispatchResult(true, true);
 422                 break;
 423
 424         case LFUN_MOUSE_MOTION:
 425                 lfunMouseMotion(cmd);
 426                 result = DispatchResult(true, true);
 427                 break;
 428
 429         case LFUN_MOUSE_RELEASE:
 430                 lfunMouseRelease(cmd);
 431                 result = DispatchResult(true, true);
 432                 break;
 433
 434         default:
 435                 result = text_.dispatch(cmd);
 436                 break;
 437         }
 438
 439         /// If the action has deleted all text in the inset, we need to change the
 440         // language to the language of the surronding text.
 441         if (!was_empty && paragraphs.begin()->empty() &&
 442             paragraphs.size() == 1) {
 443                 LyXFont font(LyXFont::ALL_IGNORE);
 444                 font.setLanguage(bv->getParentLanguage(this));
 445                 setFont(bv, font, false);
 446         }
 447
 448         lyxerr << "InsetText::priv_dispatch (end)" << endl;
 449         return result;
 450 }
 451
 452
 453 int InsetText::latex(Buffer const & buf, ostream & os,
 454                      OutputParams const & runparams) const
 455 {
 456         TexRow texrow;
 457         latexParagraphs(buf, paragraphs, os, texrow, runparams);
 458         return texrow.rows();
 459 }
 460
 461
 462 int InsetText::plaintext(Buffer const & buf, ostream & os,
 463                      OutputParams const & runparams) const
 464 {
 465         ParagraphList::const_iterator beg = paragraphs.begin();
 466         ParagraphList::const_iterator end = paragraphs.end();
 467         ParagraphList::const_iterator it = beg;
 468         for (; it != end; ++it)
 469                 asciiParagraph(buf, *it, os, runparams, it == beg);
 470
 471         //FIXME: Give the total numbers of lines
 472         return 0;
 473 }
 474
 475
 476 int InsetText::linuxdoc(Buffer const & buf, ostream & os,
 477                         OutputParams const & runparams) const
 478 {
 479         linuxdocParagraphs(buf, paragraphs, os, runparams);
 480         return 0;
 481 }
 482
 483
 484 int InsetText::docbook(Buffer const & buf, ostream & os,
 485                        OutputParams const & runparams) const
 486 {
 487         docbookParagraphs(buf, paragraphs, os, runparams);
 488         return 0;
 489 }
 490
 491
 492 void InsetText::validate(LaTeXFeatures & features) const
 493 {
 494         for_each(paragraphs.begin(), paragraphs.end(),
 495                  boost::bind(&Paragraph::validate, _1, boost::ref(features)));
 496 }
 497
 498
 499 void InsetText::getCursorPos(BufferView *, int & x, int & y) const
 500 {
 501         x = text_.cursor.x() + TEXT_TO_INSET_OFFSET;
 502         y = text_.cursor.y() - dim_.asc + TEXT_TO_INSET_OFFSET;
 503 }
 504
 505
 506 int InsetText::insetInInsetY() const
 507 {
 508         return 0;
 509 }
 510
 511
 512 bool InsetText::insertInset(BufferView * bv, InsetOld * inset)
 513 {
 514         inset->setOwner(this);
 515         text_.insertInset(inset);
 516 //      bv->fitCursor();
 517         updateLocal(bv, true);
 518         return true;
 519 }
 520
 521
 522 bool InsetText::insetAllowed(InsetOld::Code code) const
 523 {
 524         // in_insetAllowed is a really gross hack,
 525         // to allow us to call the owner's insetAllowed
 526         // without stack overflow, which can happen
 527         // when the owner uses InsetCollapsable::insetAllowed()
 528         bool ret = true;
 529         if (in_insetAllowed)
 530                 return ret;
 531         in_insetAllowed = true;
 532         if (owner())
 533                 ret = owner()->insetAllowed(code);
 534         in_insetAllowed = false;
 535         return ret;
 536 }
 537
 538
 539 bool InsetText::showInsetDialog(BufferView *) const
 540 {
 541         return false;
 542 }
 543
 544
 545 void InsetText::getLabelList(Buffer const & buffer,
 546                              std::vector<string> & list) const
 547 {
 548         ParagraphList::const_iterator pit = paragraphs.begin();
 549         ParagraphList::const_iterator pend = paragraphs.end();
 550         for (; pit != pend; ++pit) {
 551                 InsetList::const_iterator beg = pit->insetlist.begin();
 552                 InsetList::const_iterator end = pit->insetlist.end();
 553                 for (; beg != end; ++beg)
 554                         beg->inset->getLabelList(buffer, list);
 555         }
 556 }
 557
 558
 559 void InsetText::setFont(BufferView * bv, LyXFont const & font, bool toggleall,
 560                         bool selectall)
 561 {
 562         if ((paragraphs.size() == 1 && paragraphs.begin()->empty())
 563             || cpar()->empty()) {
 564                 text_.setFont(font, toggleall);
 565                 return;
 566         }
 567
 568         if (text_.selection.set())
 569                 text_.recUndo(text_.cursor.par());
 570
 571         if (selectall) {
 572                 text_.cursorTop();
 573                 text_.selection.cursor = text_.cursor;
 574                 text_.cursorBottom();
 575                 text_.setSelection();
 576         }
 577
 578         text_.toggleFree(font, toggleall);
 579
 580         if (selectall)
 581                 text_.clearSelection();
 582
 583 //      bv->fitCursor();
 584         updateLocal(bv, true);
 585 }
 586
 587
 588 void InsetText::markNew(bool track_changes)
 589 {
 590         ParagraphList::iterator pit = paragraphs.begin();
 591         ParagraphList::iterator end = paragraphs.end();
 592         for (; pit != end; ++pit) {
 593                 if (track_changes) {
 594                         pit->trackChanges();
 595                 } else {
 596                         // no-op when not tracking
 597                         pit->cleanChanges();
 598                 }
 599         }
 600 }
 601
 602
 603 void InsetText::setText(string const & data, LyXFont const & font)
 604 {
 605         clear(false);
 606         for (unsigned int i = 0; i < data.length(); ++i)
 607                 paragraphs.begin()->insertChar(i, data[i], font);
 608 }
 609
 610
 611 void InsetText::setAutoBreakRows(bool flag)
 612 {
 613         if (flag != autoBreakRows_) {
 614                 autoBreakRows_ = flag;
 615                 if (!flag)
 616                         removeNewlines();
 617         }
 618 }
 619
 620
 621 void InsetText::setDrawFrame(DrawFrame how)
 622 {
 623         drawFrame_ = how;
 624 }
 625
 626
 627 LColor_color InsetText::frameColor() const
 628 {
 629         return LColor::color(frame_color_);
 630 }
 631
 632
 633 void InsetText::setFrameColor(LColor_color col)
 634 {
 635         frame_color_ = col;
 636 }
 637
 638
 639 pos_type InsetText::cpos() const
 640 {
 641         return text_.cursor.pos();
 642 }
 643
 644
 645 ParagraphList::iterator InsetText::cpar() const
 646 {
 647         return text_.cursorPar();
 648 }
 649
 650
 651 RowList::iterator InsetText::crow() const
 652 {
 653         return cpar()->getRow(cpos());
 654 }
 655
 656
 657 void InsetText::setViewCache(BufferView const * bv) const
 658 {
 659         if (bv) {
 660                 if (bv != text_.bv_owner) {
 661                         //lyxerr << "setting view cache from "
 662                         //      << text_.bv_owner << " to " << bv << "\n";
 663                         text_.init(const_cast<BufferView *>(bv));
 664                 }
 665                 text_.bv_owner = const_cast<BufferView *>(bv);
 666         }
 667 }
 668
 669
 670 void InsetText::removeNewlines()
 671 {
 672         ParagraphList::iterator it = paragraphs.begin();
 673         ParagraphList::iterator end = paragraphs.end();
 674         for (; it != end; ++it)
 675                 for (int i = 0; i < it->size(); ++i)
 676                         if (it->isNewline(i))
 677                                 it->erase(i);
 678 }
 679
 680
 681 int InsetText::scroll(bool /*recursive*/) const
 682 {
 683         return UpdatableInset::scroll(false);
 684 }
 685
 686
 687 void InsetText::clearSelection(BufferView *)
 688 {
 689         text_.clearSelection();
 690 }
 691
 692
 693 void InsetText::clearInset(BufferView * bv, int start_x, int baseline) const
 694 {
 695         Painter & pain = bv->painter();
 696         int w = dim_.wid;
 697         int h = dim_.asc + dim_.des;
 698         int ty = baseline - dim_.asc;
 699
 700         if (ty < 0) {
 701                 h += ty;
 702                 ty = 0;
 703         }
 704         if (ty + h > pain.paperHeight())
 705                 h = pain.paperHeight();
 706         if (xo_ + w > pain.paperWidth())
 707                 w = pain.paperWidth();
 708         pain.fillRectangle(start_x + 1, ty + 1, w - 3, h - 1, backgroundColor());
 709 }
 710
 711
 712 ParagraphList * InsetText::getParagraphs(int i) const
 713 {
 714         return (i == 0) ? const_cast<ParagraphList*>(&paragraphs) : 0;
 715 }
 716
 717
 718 LyXText * InsetText::getText(int i) const
 719 {
 720         return (i == 0) ? const_cast<LyXText*>(&text_) : 0;
 721 }
 722
 723
 724 bool InsetText::checkInsertChar(LyXFont & font)
 725 {
 726         return owner() ? owner()->checkInsertChar(font) : true;
 727 }
 728
 729
 730 void InsetText::collapseParagraphs(BufferView * bv)
 731 {
 732         while (paragraphs.size() > 1) {
 733                 ParagraphList::iterator const first = paragraphs.begin();
 734                 ParagraphList::iterator second = first;
 735                 ++second;
 736                 size_t const first_par_size = first->size();
 737
 738                 if (!first->empty() &&
 739                     !second->empty() &&
 740                     !first->isSeparator(first_par_size - 1)) {
 741                         first->insertChar(first_par_size, ' ');
 742                 }
 743
 744 #warning probably broken
 745                 if (text_.selection.set()) {
 746                         if (text_.selection.start.par() == 1) {
 747                                 text_.selection.start.par(1);
 748                                 text_.selection.start.pos(text_.selection.start.pos() + first_par_size);
 749                         }
 750                         if (text_.selection.end.par() == 2) {
 751                                 text_.selection.end.par(1);
 752                                 text_.selection.end.pos(text_.selection.end.pos() + first_par_size);
 753                         }
 754                 }
 755
 756                 mergeParagraph(bv->buffer()->params(), paragraphs, first);
 757         }
 758 }
 759
 760
 761 void InsetText::getDrawFont(LyXFont & font) const
 762 {
 763         if (owner())
 764                 owner()->getDrawFont(font);
 765 }
 766
 767
 768 void InsetText::appendParagraphs(Buffer * buffer, ParagraphList & plist)
 769 {
 770 #warning FIXME Check if Changes stuff needs changing here. (Lgb)
 771 // And it probably does. You have to take a look at this John. (Lgb)
 772 #warning John, have a look here. (Lgb)
 773         ParagraphList::iterator pit = plist.begin();
 774         ParagraphList::iterator ins = paragraphs.insert(paragraphs.end(), *pit);
 775         ++pit;
 776         mergeParagraph(buffer->params(), paragraphs, boost::prior(ins));
 777
 778         ParagraphList::iterator pend = plist.end();
 779         for (; pit != pend; ++pit)
 780                 paragraphs.push_back(*pit);
 781 }
 782
 783
 784 void InsetText::addPreview(PreviewLoader & loader) const
 785 {
 786         ParagraphList::const_iterator pit = paragraphs.begin();
 787         ParagraphList::const_iterator pend = paragraphs.end();
 788
 789         for (; pit != pend; ++pit) {
 790                 InsetList::const_iterator it  = pit->insetlist.begin();
 791                 InsetList::const_iterator end = pit->insetlist.end();
 792                 for (; it != end; ++it)
 793                         it->inset->addPreview(loader);
 794         }
 795 }