src/BufferView.C

   1 /**
   2  * \file BufferView.C
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author Alfredo Braunstein
   7  * \author Lars Gullik Bjønnes
   8  * \author John Levon
   9  * \author André Pönitz
  10  * \author Jürgen Vigna
  11  *
  12  * Full author contact details are available in file CREDITS.
  13  */
  14
  15 #include <config.h>
  16
  17 #include "BufferView.h"
  18
  19 #include "buffer.h"
  20 #include "buffer_funcs.h"
  21 #include "bufferlist.h"
  22 #include "bufferparams.h"
  23 #include "coordcache.h"
  24 #include "CutAndPaste.h"
  25 #include "debug.h"
  26 #include "dispatchresult.h"
  27 #include "errorlist.h"
  28 #include "factory.h"
  29 #include "FloatList.h"
  30 #include "funcrequest.h"
  31 #include "FuncStatus.h"
  32 #include "gettext.h"
  33 #include "intl.h"
  34 #include "insetiterator.h"
  35 #include "language.h"
  36 #include "LaTeXFeatures.h"
  37 #include "lyx_cb.h" // added for Dispatch functions
  38 #include "lyx_main.h"
  39 #include "lyxfind.h"
  40 #include "lyxfunc.h"
  41 #include "lyxlayout.h"
  42 #include "lyxtext.h"
  43 #include "lyxtextclass.h"
  44 #include "lyxrc.h"
  45 #include "session.h"
  46 #include "paragraph.h"
  47 #include "paragraph_funcs.h"
  48 #include "ParagraphParameters.h"
  49 #include "pariterator.h"
  50 #include "texrow.h"
  51 #include "toc.h"
  52 #include "undo.h"
  53 #include "vspace.h"
  54 #include "WordLangTuple.h"
  55 #include "metricsinfo.h"
  56
  57 #include "insets/insetbibtex.h"
  58 #include "insets/insetcommand.h" // ChangeRefs
  59 #include "insets/insetref.h"
  60 #include "insets/insettext.h"
  61
  62 #include "frontends/Alert.h"
  63 #include "frontends/FileDialog.h"
  64 #include "frontends/FontMetrics.h"
  65
  66 #include "graphics/Previews.h"
  67
  68 #include "support/convert.h"
  69 #include "support/filefilterlist.h"
  70 #include "support/filetools.h"
  71 #include "support/package.h"
  72 #include "support/types.h"
  73
  74 #include <boost/bind.hpp>
  75 #include <boost/current_function.hpp>
  76
  77 #include <functional>
  78 #include <vector>
  79
  80
  81 using lyx::docstring;
  82 using lyx::pos_type;
  83
  84 using lyx::support::addPath;
  85 using lyx::support::bformat;
  86 using lyx::support::FileFilterList;
  87 using lyx::support::fileSearch;
  88 using lyx::support::isDirWriteable;
  89 using lyx::support::makeDisplayPath;
  90 using lyx::support::makeAbsPath;
  91 using lyx::support::package;
  92
  93 using std::distance;
  94 using std::endl;
  95 using std::istringstream;
  96 using std::find;
  97 using std::make_pair;
  98 using std::min;
  99 using std::max;
 100 using std::mem_fun_ref;
 101 using std::string;
 102 using std::vector;
 103
 104 namespace Alert = lyx::frontend::Alert;
 105
 106
 107 namespace {
 108
 109 unsigned int const saved_positions_num = 20;
 110
 111
 112 /// Return an inset of this class if it exists at the current cursor position
 113 template <class T>
 114 T * getInsetByCode(LCursor & cur, InsetBase::Code code)
 115 {
 116         T * inset = 0;
 117         DocIterator it = cur;
 118         if (it.nextInset() &&
 119             it.nextInset()->lyxCode() == code) {
 120                 inset = static_cast<T*>(it.nextInset());
 121         }
 122         return inset;
 123 }
 124
 125 } // anon namespace
 126
 127
 128 BufferView::BufferView()
 129         : buffer_(0), wh_(0),
 130           cursor_(*this),
 131           multiparsel_cache_(false), anchor_ref_(0), offset_ref_(0),
 132           intl_(new Intl)
 133 {
 134         xsel_cache_.set = false;
 135
 136         saved_positions.resize(saved_positions_num);
 137         // load saved bookmarks
 138         lyx::Session::BookmarkList & bmList = LyX::ref().session().loadBookmarks();
 139         for (lyx::Session::BookmarkList::iterator bm = bmList.begin();
 140                 bm != bmList.end(); ++bm)
 141                 if (bm->get<0>() < saved_positions_num)
 142                         saved_positions[bm->get<0>()] = Position( bm->get<1>(), bm->get<2>(), bm->get<3>() );
 143         // and then clear them
 144         bmList.clear();
 145
 146         intl_->initKeyMapper(lyxrc.use_kbmap);
 147 }
 148
 149
 150 BufferView::~BufferView()
 151 {
 152 }
 153
 154
 155 Buffer * BufferView::buffer() const
 156 {
 157         return buffer_;
 158 }
 159
 160
 161 void BufferView::setBuffer(Buffer * b)
 162 {
 163         lyxerr[Debug::INFO] << BOOST_CURRENT_FUNCTION
 164                             << "[ b = " << b << "]" << endl;
 165
 166         if (buffer_) {
 167                 // Save the actual cursor position and anchor inside the
 168                 // buffer so that it can be restored in case we rechange
 169                 // to this buffer later on.
 170                 buffer_->saveCursor(cursor_.selectionBegin(),
 171                                     cursor_.selectionEnd());
 172                 // current buffer is going to be switched-off, save cursor pos
 173                 LyX::ref().session().saveFilePosition(buffer_->fileName(),
 174                         boost::tie(cursor_.pit(), cursor_.pos()) );
 175         }
 176
 177         // If we're quitting lyx, don't bother updating stuff
 178         if (quitting) {
 179                 buffer_ = 0;
 180                 return;
 181         }
 182
 183         // If we are closing current buffer, switch to the first in
 184         // buffer list.
 185         if (!b) {
 186                 lyxerr[Debug::INFO] << BOOST_CURRENT_FUNCTION
 187                                     << " No Buffer!" << endl;
 188                 // We are closing the buffer, use the first buffer as current
 189                 buffer_ = theBufferList().first();
 190         } else {
 191                 // Set current buffer
 192                 buffer_ = b;
 193         }
 194
 195         // Reset old cursor
 196         cursor_ = LCursor(*this);
 197         anchor_ref_ = 0;
 198         offset_ref_ = 0;
 199
 200         if (buffer_) {
 201                 lyxerr[Debug::INFO] << BOOST_CURRENT_FUNCTION
 202                                     << "Buffer addr: " << buffer_ << endl;
 203                 cursor_.push(buffer_->inset());
 204                 cursor_.resetAnchor();
 205                 buffer_->text().init(this);
 206                 buffer_->text().setCurrentFont(cursor_);
 207                 if (buffer_->getCursor().size() > 0 &&
 208                     buffer_->getAnchor().size() > 0)
 209                 {
 210                         cursor_.setCursor(buffer_->getAnchor().asDocIterator(&(buffer_->inset())));
 211                         cursor_.resetAnchor();
 212                         cursor_.setCursor(buffer_->getCursor().asDocIterator(&(buffer_->inset())));
 213                         cursor_.setSelection();
 214                 }
 215         }
 216
 217         update();
 218
 219         if (buffer_ && lyx::graphics::Previews::status() != LyXRC::PREVIEW_OFF)
 220                 lyx::graphics::Previews::get().generateBufferPreviews(*buffer_);
 221 }
 222
 223
 224 bool BufferView::loadLyXFile(string const & filename, bool tolastfiles)
 225 {
 226         // Get absolute path of file and add ".lyx"
 227         // to the filename if necessary
 228         string s = fileSearch(string(), filename, "lyx");
 229
 230         bool const found = !s.empty();
 231
 232         if (!found)
 233                 s = filename;
 234
 235         // File already open?
 236         if (theBufferList().exists(s)) {
 237                 docstring const file = makeDisplayPath(s, 20);
 238                 docstring text = bformat(_("The document %1$s is already "
 239                                                      "loaded.\n\nDo you want to revert "
 240                                                      "to the saved version?"), file);
 241                 int const ret = Alert::prompt(_("Revert to saved document?"),
 242                         text, 0, 1,  _("&Revert"), _("&Switch to document"));
 243
 244                 if (ret != 0) {
 245                         setBuffer(theBufferList().getBuffer(s));
 246                         return true;
 247                 }
 248                 // FIXME: should be LFUN_REVERT
 249                 if (!theBufferList().close(theBufferList().getBuffer(s), false))
 250                         return false;
 251                 // Fall through to new load. (Asger)
 252         }
 253
 254         Buffer * b = 0;
 255
 256         if (found) {
 257                 b = theBufferList().newBuffer(s);
 258                 if (!::loadLyXFile(b, s)) {
 259                         theBufferList().release(b);
 260                         return false;
 261                 }
 262         } else {
 263                 docstring text = bformat(_("The document %1$s does not yet "
 264                                                      "exist.\n\nDo you want to create "
 265                                                      "a new document?"), lyx::from_utf8(s));
 266                 int const ret = Alert::prompt(_("Create new document?"),
 267                          text, 0, 1, _("&Create"), _("Cancel"));
 268
 269                 if (ret == 0) {
 270                         b = newFile(s, string(), true);
 271                         if (!b)
 272                                 return false;
 273                 } else
 274                         return false;
 275         }
 276
 277         setBuffer(b);
 278         // Send the "errors" signal in case of parsing errors
 279         b->errors("Parse");
 280
 281         // scroll to the position when the file was last closed
 282         if (lyxrc.use_lastfilepos) {
 283                 lyx::pit_type pit;
 284                 lyx::pos_type pos;
 285                 boost::tie(pit, pos) = LyX::ref().session().loadFilePosition(s);
 286                 // I am not sure how to separate the following part to a function
 287                 // so I will leave this to Lars.
 288                 //
 289                 // check pit since the document may be externally changed.
 290                 if ( static_cast<size_t>(pit) < b->paragraphs().size() ) {
 291                         ParIterator it = b->par_iterator_begin();
 292                         ParIterator const end = b->par_iterator_end();
 293                         for (; it != end; ++it)
 294                                 if (it.pit() == pit) {
 295                                         // restored pos may be bigger than it->size
 296                                         setCursor(makeDocIterator(it, min(pos, it->size())));
 297                                         update(Update::FitCursor);
 298                                         break;
 299                                 }
 300                 }
 301         }
 302
 303         if (tolastfiles)
 304                 LyX::ref().session().addLastFile(b->fileName());
 305
 306         return true;
 307 }
 308
 309
 310 void BufferView::reload()
 311 {
 312         string const fn = buffer_->fileName();
 313         if (theBufferList().close(buffer_, false))
 314                 loadLyXFile(fn);
 315 }
 316
 317
 318 void BufferView::resize()
 319 {
 320         if (!buffer_)
 321                 return;
 322
 323         lyxerr[Debug::DEBUG] << BOOST_CURRENT_FUNCTION << endl;
 324
 325         buffer_->text().init(this);
 326         update();
 327         switchKeyMap();
 328 }
 329
 330
 331 bool BufferView::fitCursor()
 332 {
 333         if (bv_funcs::status(this, cursor_) == bv_funcs::CUR_INSIDE) {
 334                 lyx::frontend::FontMetrics const & fm =
 335                         theFontMetrics(cursor_.getFont());
 336                 int const asc = fm.maxAscent();
 337                 int const des = fm.maxDescent();
 338                 Point const p = bv_funcs::getPos(cursor_, cursor_.boundary());
 339                 if (p.y_ - asc >= 0 && p.y_ + des < height_)
 340                         return false;
 341         }
 342         center();
 343         return true;
 344 }
 345
 346
 347 bool BufferView::multiParSel()
 348 {
 349         if (!cursor_.selection())
 350                 return false;
 351         bool ret = multiparsel_cache_;
 352         multiparsel_cache_ = cursor_.selBegin().pit() != cursor_.selEnd().pit();
 353         // Either this, or previous selection spans paragraphs
 354         return ret || multiparsel_cache_;
 355 }
 356
 357
 358 bool BufferView::update(Update::flags flags)
 359 {
 360         // This is close to a hot-path.
 361         if (lyxerr.debugging(Debug::DEBUG)) {
 362                 lyxerr[Debug::DEBUG]
 363                         << BOOST_CURRENT_FUNCTION
 364                         << "[fitcursor = " << (flags & Update::FitCursor)
 365                         << ", forceupdate = " << (flags & Update::Force)
 366                         << ", singlepar = " << (flags & Update::SinglePar)
 367                         << "]  buffer: " << buffer_ << endl;
 368         }
 369
 370         // Check needed to survive LyX startup
 371         if (!buffer_)
 372                 return false;
 373
 374         // Update macro store
 375         buffer_->buildMacros();
 376
 377         // First drawing step
 378         updateMetrics(flags & Update::SinglePar);
 379
 380         // The second drawing step is done in WorkArea::redraw() if needed.
 381         bool const need_second_step =
 382                 (flags & (Update::Force | Update::FitCursor | Update::MultiParSel))
 383                 && (fitCursor() || multiParSel());
 384
 385         return need_second_step;
 386 }
 387
 388
 389 void BufferView::updateScrollbar()
 390 {
 391         if (!buffer_) {
 392                 lyxerr[Debug::DEBUG] << BOOST_CURRENT_FUNCTION
 393                                      << " no text in updateScrollbar" << endl;
 394                 scrollbarParameters_.reset();
 395                 return;
 396         }
 397
 398         LyXText & t = buffer_->text();
 399         int const parsize = int(t.paragraphs().size() - 1);
 400         if (anchor_ref_ >  parsize)  {
 401                 anchor_ref_ = parsize;
 402                 offset_ref_ = 0;
 403         }
 404
 405         lyxerr[Debug::GUI]
 406                 << BOOST_CURRENT_FUNCTION
 407                 << " Updating scrollbar: height: " << t.paragraphs().size()
 408                 << " curr par: " << cursor_.bottom().pit()
 409                 << " default height " << defaultRowHeight() << endl;
 410
 411         // It would be better to fix the scrollbar to understand
 412         // values in [0..1] and divide everything by wh
 413
 414         // estimated average paragraph height:
 415         if (wh_ == 0)
 416                 wh_ = height_ / 4;
 417         int h = t.getPar(anchor_ref_).height();
 418
 419         // Normalize anchor/offset (MV):
 420         while (offset_ref_ > h && anchor_ref_ < parsize) {
 421                 anchor_ref_++;
 422                 offset_ref_ -= h;
 423                 h = t.getPar(anchor_ref_).height();
 424         }
 425         // Look at paragraph heights on-screen
 426         int sumh = 0;
 427         int nh = 0;
 428         for (lyx::pit_type pit = anchor_ref_; pit <= parsize; ++pit) {
 429                 if (sumh > height_)
 430                         break;
 431                 int const h2 = t.getPar(pit).height();
 432                 sumh += h2;
 433                 nh++;
 434         }
 435         int const hav = sumh / nh;
 436         // More realistic average paragraph height
 437         if (hav > wh_)
 438                 wh_ = hav;
 439
 440         scrollbarParameters_.height = (parsize + 1) * wh_;
 441         scrollbarParameters_.position = anchor_ref_ * wh_ + int(offset_ref_ * wh_ / float(h));
 442         scrollbarParameters_.lineScrollHeight = int(wh_ * defaultRowHeight() / float(h));
 443 }
 444
 445
 446 ScrollbarParameters const & BufferView::scrollbarParameters() const
 447 {
 448         return scrollbarParameters_;
 449 }
 450
 451
 452 void BufferView::scrollDocView(int value)
 453 {
 454         lyxerr[Debug::GUI] << BOOST_CURRENT_FUNCTION
 455                            << "[ value = " << value << "]" << endl;
 456
 457         if (!buffer_)
 458                 return;
 459
 460         LyXText & t = buffer_->text();
 461
 462         float const bar = value / float(wh_ * t.paragraphs().size());
 463
 464         anchor_ref_ = int(bar * t.paragraphs().size());
 465         if (anchor_ref_ >  int(t.paragraphs().size()) - 1)
 466                 anchor_ref_ = int(t.paragraphs().size()) - 1;
 467         t.redoParagraph(anchor_ref_);
 468         int const h = t.getPar(anchor_ref_).height();
 469         offset_ref_ = int((bar * t.paragraphs().size() - anchor_ref_) * h);
 470 }
 471
 472
 473 void BufferView::setCursorFromScrollbar()
 474 {
 475         LyXText & t = buffer_->text();
 476
 477         int const height = 2 * defaultRowHeight();
 478         int const first = height;
 479         int const last = height_ - height;
 480         LCursor & cur = cursor_;
 481
 482         bv_funcs::CurStatus st = bv_funcs::status(this, cur);
 483
 484         switch (st) {
 485         case bv_funcs::CUR_ABOVE:
 486                 t.setCursorFromCoordinates(cur, 0, first);
 487                 cur.clearSelection();
 488                 break;
 489         case bv_funcs::CUR_BELOW:
 490                 t.setCursorFromCoordinates(cur, 0, last);
 491                 cur.clearSelection();
 492                 break;
 493         case bv_funcs::CUR_INSIDE:
 494                 int const y = bv_funcs::getPos(cur, cur.boundary()).y_;
 495                 int const newy = min(last, max(y, first));
 496                 if (y != newy) {
 497                         cur.reset(buffer_->inset());
 498                         t.setCursorFromCoordinates(cur, 0, newy);
 499                 }
 500         }
 501 }
 502
 503
 504 Change const BufferView::getCurrentChange() const
 505 {
 506         if (!cursor_.selection())
 507                 return Change(Change::UNCHANGED);
 508
 509         DocIterator dit = cursor_.selectionBegin();
 510         return dit.paragraph().lookupChange(dit.pos());
 511 }
 512
 513
 514 void BufferView::savePosition(unsigned int i)
 515 {
 516         if (i >= saved_positions_num)
 517                 return;
 518         BOOST_ASSERT(cursor_.inTexted());
 519         saved_positions[i] = Position(buffer_->fileName(),
 520                                       cursor_.paragraph().id(),
 521                                       cursor_.pos());
 522         if (i > 0)
 523                 // emit message signal.
 524                 message(bformat(_("Saved bookmark %1$d"), i));
 525 }
 526
 527
 528 void BufferView::restorePosition(unsigned int i)
 529 {
 530         if (i >= saved_positions_num)
 531                 return;
 532
 533         string const fname = saved_positions[i].filename;
 534
 535         cursor_.clearSelection();
 536
 537         if (fname != buffer_->fileName()) {
 538                 Buffer * b = 0;
 539                 if (theBufferList().exists(fname))
 540                         b = theBufferList().getBuffer(fname);
 541                 else {
 542                         b = theBufferList().newBuffer(fname);
 543                         // Don't ask, just load it
 544                         ::loadLyXFile(b, fname);
 545                 }
 546                 if (b)
 547                         setBuffer(b);
 548         }
 549
 550         ParIterator par = buffer_->getParFromID(saved_positions[i].par_id);
 551         if (par == buffer_->par_iterator_end())
 552                 return;
 553
 554         setCursor(makeDocIterator(par, min(par->size(), saved_positions[i].par_pos)));
 555
 556         if (i > 0)
 557                 // emit message signal.
 558                 message(bformat(_("Moved to bookmark %1$d"), i));
 559 }
 560
 561
 562 bool BufferView::isSavedPosition(unsigned int i)
 563 {
 564         return i < saved_positions_num && !saved_positions[i].filename.empty();
 565 }
 566
 567 void BufferView::saveSavedPositions()
 568 {
 569         // save bookmarks. It is better to use the pit interface
 570         // but I do not know how to effectively convert between
 571         // par_id and pit.
 572         for (unsigned int i=1; i < saved_positions_num; ++i) {
 573                 if ( isSavedPosition(i) )
 574                         LyX::ref().session().saveBookmark( boost::tie(
 575                                 i,
 576                                 saved_positions[i].filename,
 577                                 saved_positions[i].par_id,
 578                                 saved_positions[i].par_pos) );
 579         }
 580 }
 581
 582 void BufferView::switchKeyMap()
 583 {
 584         if (!lyxrc.rtl_support)
 585                 return;
 586
 587         if (getLyXText()->real_current_font.isRightToLeft()) {
 588                 if (intl_->keymap == Intl::PRIMARY)
 589                         intl_->keyMapSec();
 590         } else {
 591                 if (intl_->keymap == Intl::SECONDARY)
 592                         intl_->keyMapPrim();
 593         }
 594 }
 595
 596
 597 int BufferView::workWidth() const
 598 {
 599         return width_;
 600 }
 601
 602
 603 void BufferView::center()
 604 {
 605         CursorSlice & bot = cursor_.bottom();
 606         lyx::pit_type const pit = bot.pit();
 607         bot.text()->redoParagraph(pit);
 608         Paragraph const & par = bot.text()->paragraphs()[pit];
 609         anchor_ref_ = pit;
 610         offset_ref_ = bv_funcs::coordOffset(cursor_, cursor_.boundary()).y_
 611                 + par.ascent() - height_ / 2;
 612 }
 613
 614
 615 FuncStatus BufferView::getStatus(FuncRequest const & cmd)
 616 {
 617         FuncStatus flag;
 618
 619         switch (cmd.action) {
 620
 621         case LFUN_UNDO:
 622                 flag.enabled(!buffer_->undostack().empty());
 623                 break;
 624         case LFUN_REDO:
 625                 flag.enabled(!buffer_->redostack().empty());
 626                 break;
 627         case LFUN_FILE_INSERT:
 628         case LFUN_FILE_INSERT_ASCII_PARA:
 629         case LFUN_FILE_INSERT_ASCII:
 630         case LFUN_BOOKMARK_SAVE:
 631                 // FIXME: Actually, these LFUNS should be moved to LyXText
 632                 flag.enabled(cursor_.inTexted());
 633                 break;
 634         case LFUN_FONT_STATE:
 635         case LFUN_LABEL_INSERT:
 636         case LFUN_PARAGRAPH_GOTO:
 637         // FIXME handle non-trivially
 638         case LFUN_OUTLINE_UP:
 639         case LFUN_OUTLINE_DOWN:
 640         case LFUN_OUTLINE_IN:
 641         case LFUN_OUTLINE_OUT:
 642         case LFUN_NOTE_NEXT:
 643         case LFUN_REFERENCE_NEXT:
 644         case LFUN_WORD_FIND:
 645         case LFUN_WORD_REPLACE:
 646         case LFUN_MARK_OFF:
 647         case LFUN_MARK_ON:
 648         case LFUN_MARK_TOGGLE:
 649         case LFUN_SCREEN_RECENTER:
 650         case LFUN_BIBTEX_DATABASE_ADD:
 651         case LFUN_BIBTEX_DATABASE_DEL:
 652         case LFUN_WORDS_COUNT:
 653         case LFUN_NEXT_INSET_TOGGLE:
 654                 flag.enabled(true);
 655                 break;
 656
 657         case LFUN_LABEL_GOTO: {
 658                 flag.enabled(!cmd.argument().empty()
 659                     || getInsetByCode<InsetRef>(cursor_, InsetBase::REF_CODE));
 660                 break;
 661         }
 662
 663         case LFUN_BOOKMARK_GOTO:
 664                 flag.enabled(isSavedPosition(convert<unsigned int>(lyx::to_utf8(cmd.argument()))));
 665                 break;
 666
 667         case LFUN_CHANGES_TRACK:
 668                 flag.enabled(true);
 669                 flag.setOnOff(buffer_->params().trackChanges);
 670                 break;
 671
 672         case LFUN_CHANGES_OUTPUT: {
 673                 OutputParams runparams;
 674                 LaTeXFeatures features(*buffer_, buffer_->params(), runparams);
 675                 flag.enabled(buffer_ && features.isAvailable("dvipost"));
 676                 flag.setOnOff(buffer_->params().outputChanges);
 677                 break;
 678         }
 679
 680         case LFUN_CHANGES_MERGE:
 681         case LFUN_CHANGE_NEXT:
 682         case LFUN_ALL_CHANGES_ACCEPT:
 683         case LFUN_ALL_CHANGES_REJECT:
 684                 flag.enabled(buffer_); // FIXME: Change tracking (MG)
 685                 break;
 686
 687         case LFUN_BUFFER_TOGGLE_COMPRESSION: {
 688                 flag.setOnOff(buffer_->params().compressed);
 689                 break;
 690         }
 691
 692         default:
 693                 flag.enabled(false);
 694         }
 695
 696         return flag;
 697 }
 698
 699
 700 bool BufferView::dispatch(FuncRequest const & cmd)
 701 {
 702         //lyxerr << BOOST_CURRENT_FUNCTION
 703         //       << [ cmd = " << cmd << "]" << endl;
 704
 705         // Make sure that the cached BufferView is correct.
 706         lyxerr[Debug::ACTION] << BOOST_CURRENT_FUNCTION
 707                 << " action[" << cmd.action << ']'
 708                 << " arg[" << lyx::to_utf8(cmd.argument()) << ']'
 709                 << " x[" << cmd.x << ']'
 710                 << " y[" << cmd.y << ']'
 711                 << " button[" << cmd.button() << ']'
 712                 << endl;
 713
 714         LCursor & cur = cursor_;
 715
 716         switch (cmd.action) {
 717
 718         case LFUN_UNDO:
 719                 if (buffer_) {
 720                         cur.message(_("Undo"));
 721                         cur.clearSelection();
 722                         if (!textUndo(*this))
 723                                 cur.message(_("No further undo information"));
 724                         update();
 725                         switchKeyMap();
 726                 }
 727                 break;
 728
 729         case LFUN_REDO:
 730                 if (buffer_) {
 731                         cur.message(_("Redo"));
 732                         cur.clearSelection();
 733                         if (!textRedo(*this))
 734                                 cur.message(_("No further redo information"));
 735                         update();
 736                         switchKeyMap();
 737                 }
 738                 break;
 739
 740         case LFUN_FILE_INSERT:
 741                 // FIXME: We don't know the encoding of filenames
 742                 menuInsertLyXFile(lyx::to_utf8(cmd.argument()));
 743                 break;
 744
 745         case LFUN_FILE_INSERT_ASCII_PARA:
 746                 // FIXME: We don't know the encoding of filenames
 747                 insertAsciiFile(this, lyx::to_utf8(cmd.argument()), true);
 748                 break;
 749
 750         case LFUN_FILE_INSERT_ASCII:
 751                 // FIXME: We don't know the encoding of filenames
 752                 insertAsciiFile(this, lyx::to_utf8(cmd.argument()), false);
 753                 break;
 754
 755         case LFUN_FONT_STATE:
 756                 cur.message(lyx::from_utf8(cur.currentState()));
 757                 break;
 758
 759         case LFUN_BOOKMARK_SAVE:
 760                 savePosition(convert<unsigned int>(lyx::to_utf8(cmd.argument())));
 761                 break;
 762
 763         case LFUN_BOOKMARK_GOTO:
 764                 restorePosition(convert<unsigned int>(lyx::to_utf8(cmd.argument())));
 765                 break;
 766
 767         case LFUN_LABEL_GOTO: {
 768                 string label = lyx::to_utf8(cmd.argument());
 769                 if (label.empty()) {
 770                         InsetRef * inset =
 771                                 getInsetByCode<InsetRef>(cursor_,
 772                                                          InsetBase::REF_CODE);
 773                         if (inset) {
 774                                 label = inset->getContents();
 775                                 savePosition(0);
 776                         }
 777                 }
 778
 779                 if (!label.empty())
 780                         gotoLabel(label);
 781                 break;
 782         }
 783
 784         case LFUN_PARAGRAPH_GOTO: {
 785                 int const id = convert<int>(lyx::to_utf8(cmd.argument()));
 786                 ParIterator par = buffer_->getParFromID(id);
 787                 if (par == buffer_->par_iterator_end()) {
 788                         lyxerr[Debug::INFO] << "No matching paragraph found! ["
 789                                             << id << ']' << endl;
 790                         break;
 791                 } else {
 792                         lyxerr[Debug::INFO] << "Paragraph " << par->id()
 793                                             << " found." << endl;
 794                 }
 795
 796                 // Set the cursor
 797                 setCursor(makeDocIterator(par, 0));
 798
 799                 update();
 800                 switchKeyMap();
 801                 break;
 802         }
 803
 804         case LFUN_OUTLINE_UP:
 805                 lyx::toc::outline(lyx::toc::Up, cursor_);
 806                 cursor_.text()->setCursor(cursor_, cursor_.pit(), 0);
 807                 updateLabels(*buffer_);
 808                 break;
 809         case LFUN_OUTLINE_DOWN:
 810                 lyx::toc::outline(lyx::toc::Down, cursor_);
 811                 cursor_.text()->setCursor(cursor_, cursor_.pit(), 0);
 812                 updateLabels(*buffer_);
 813                 break;
 814         case LFUN_OUTLINE_IN:
 815                 lyx::toc::outline(lyx::toc::In, cursor_);
 816                 updateLabels(*buffer_);
 817                 break;
 818         case LFUN_OUTLINE_OUT:
 819                 lyx::toc::outline(lyx::toc::Out, cursor_);
 820                 updateLabels(*buffer_);
 821                 break;
 822
 823         case LFUN_NOTE_NEXT:
 824                 bv_funcs::gotoInset(this, InsetBase::NOTE_CODE, false);
 825                 break;
 826
 827         case LFUN_REFERENCE_NEXT: {
 828                 vector<InsetBase_code> tmp;
 829                 tmp.push_back(InsetBase::LABEL_CODE);
 830                 tmp.push_back(InsetBase::REF_CODE);
 831                 bv_funcs::gotoInset(this, tmp, true);
 832                 break;
 833         }
 834
 835         case LFUN_CHANGES_TRACK:
 836                 buffer_->params().trackChanges = !buffer_->params().trackChanges;
 837                 break;
 838
 839         case LFUN_CHANGES_OUTPUT: {
 840                 buffer_->params().outputChanges = !buffer_->params().outputChanges;
 841                 break;
 842         }
 843
 844         case LFUN_CHANGE_NEXT:
 845                 lyx::find::findNextChange(this);
 846                 break;
 847
 848         case LFUN_CHANGES_MERGE:
 849                 if (lyx::find::findNextChange(this))
 850                         showDialog("changes");
 851                 break;
 852
 853         case LFUN_ALL_CHANGES_ACCEPT: {
 854                 cursor_.reset(buffer_->inset());
 855 #ifdef WITH_WARNINGS
 856 #warning FIXME changes
 857 #endif
 858                 while (lyx::find::findNextChange(this))
 859                         getLyXText()->acceptChange(cursor_);
 860                 update();
 861                 break;
 862         }
 863
 864         case LFUN_ALL_CHANGES_REJECT: {
 865                 cursor_.reset(buffer_->inset());
 866 #ifdef WITH_WARNINGS
 867 #warning FIXME changes
 868 #endif
 869                 while (lyx::find::findNextChange(this))
 870                         getLyXText()->rejectChange(cursor_);
 871                 break;
 872         }
 873
 874         case LFUN_WORD_FIND:
 875                 lyx::find::find(this, cmd);
 876                 break;
 877
 878         case LFUN_WORD_REPLACE:
 879                 lyx::find::replace(this, cmd);
 880                 break;
 881
 882         case LFUN_MARK_OFF:
 883                 cur.clearSelection();
 884                 cur.resetAnchor();
 885                 cur.message(lyx::from_utf8(N_("Mark off")));
 886                 break;
 887
 888         case LFUN_MARK_ON:
 889                 cur.clearSelection();
 890                 cur.mark() = true;
 891                 cur.resetAnchor();
 892                 cur.message(lyx::from_utf8(N_("Mark on")));
 893                 break;
 894
 895         case LFUN_MARK_TOGGLE:
 896                 cur.clearSelection();
 897                 if (cur.mark()) {
 898                         cur.mark() = false;
 899                         cur.message(lyx::from_utf8(N_("Mark removed")));
 900                 } else {
 901                         cur.mark() = true;
 902                         cur.message(lyx::from_utf8(N_("Mark set")));
 903                 }
 904                 cur.resetAnchor();
 905                 break;
 906
 907         case LFUN_SCREEN_RECENTER:
 908                 center();
 909                 break;
 910
 911         case LFUN_BIBTEX_DATABASE_ADD: {
 912                 LCursor tmpcur = cursor_;
 913                 bv_funcs::findInset(tmpcur, InsetBase::BIBTEX_CODE, false);
 914                 InsetBibtex * inset = getInsetByCode<InsetBibtex>(tmpcur,
 915                                                 InsetBase::BIBTEX_CODE);
 916                 if (inset) {
 917                         if (inset->addDatabase(lyx::to_utf8(cmd.argument())))
 918                                 buffer_->updateBibfilesCache();
 919                 }
 920                 break;
 921         }
 922
 923         case LFUN_BIBTEX_DATABASE_DEL: {
 924                 LCursor tmpcur = cursor_;
 925                 bv_funcs::findInset(tmpcur, InsetBase::BIBTEX_CODE, false);
 926                 InsetBibtex * inset = getInsetByCode<InsetBibtex>(tmpcur,
 927                                                 InsetBase::BIBTEX_CODE);
 928                 if (inset) {
 929                         if (inset->delDatabase(lyx::to_utf8(cmd.argument())))
 930                                 buffer_->updateBibfilesCache();
 931                 }
 932                 break;
 933         }
 934
 935         case LFUN_WORDS_COUNT: {
 936                 DocIterator from, to;
 937                 if (cur.selection()) {
 938                         from = cur.selectionBegin();
 939                         to = cur.selectionEnd();
 940                 } else {
 941                         from = doc_iterator_begin(buffer_->inset());
 942                         to = doc_iterator_end(buffer_->inset());
 943                 }
 944                 int const count = countWords(from, to);
 945                 docstring message;
 946                 if (count != 1) {
 947                         if (cur.selection())
 948                                 message = bformat(_("%1$d words in selection."),
 949                                           count);
 950                                 else
 951                                         message = bformat(_("%1$d words in document."),
 952                                                           count);
 953                 }
 954                 else {
 955                         if (cur.selection())
 956                                 message = _("One word in selection.");
 957                         else
 958                                 message = _("One word in document.");
 959                 }
 960
 961                 Alert::information(_("Count words"), message);
 962         }
 963                 break;
 964
 965         case LFUN_BUFFER_TOGGLE_COMPRESSION:
 966                 // turn compression on/off
 967                 buffer_->params().compressed = !buffer_->params().compressed;
 968                 break;
 969
 970         case LFUN_NEXT_INSET_TOGGLE: {
 971                 // this is the real function we want to invoke
 972                 FuncRequest tmpcmd = FuncRequest(LFUN_INSET_TOGGLE, cmd.origin);
 973                 // if there is an inset at cursor, see whether it
 974                 // wants to toggle.
 975                 InsetBase * inset = cur.nextInset();
 976                 if (inset && inset->isActive()) {
 977                         LCursor tmpcur = cur;
 978                         tmpcur.pushLeft(*inset);
 979                         inset->dispatch(tmpcur, tmpcmd);
 980                         if (tmpcur.result().dispatched()) {
 981                                 cur.dispatched();
 982                         }
 983                 }
 984                 // if it did not work, try the underlying inset.
 985                 if (!cur.result().dispatched())
 986                         cur.dispatch(tmpcmd);
 987
 988                 if (cur.result().dispatched())
 989                         cur.clearSelection();
 990
 991                 break;
 992         }
 993
 994         default:
 995                 return false;
 996         }
 997
 998         return true;
 999 }
1000
1001
1002 docstring const BufferView::requestSelection()
1003 {
1004         if (!buffer_)
1005                 return docstring();
1006
1007         LCursor & cur = cursor_;
1008
1009         if (!cur.selection()) {
1010                 xsel_cache_.set = false;
1011                 return docstring();
1012         }
1013
1014         if (!xsel_cache_.set ||
1015             cur.top() != xsel_cache_.cursor ||
1016             cur.anchor_.top() != xsel_cache_.anchor)
1017         {
1018                 xsel_cache_.cursor = cur.top();
1019                 xsel_cache_.anchor = cur.anchor_.top();
1020                 xsel_cache_.set = cur.selection();
1021                 return cur.selectionAsString(false);
1022         }
1023         return docstring();
1024 }
1025
1026
1027 void BufferView::clearSelection()
1028 {
1029         if (buffer_) {
1030                 cursor_.clearSelection();
1031                 xsel_cache_.set = false;
1032         }
1033 }
1034
1035
1036 void BufferView::workAreaResize(int width, int height)
1037 {
1038         bool const widthChange = width != width_;
1039         bool const heightChange = height != height_;
1040
1041         // Update from work area
1042         width_ = width;
1043         height_ = height;
1044
1045         if (buffer_ && widthChange) {
1046                 // The WorkArea content needs a resize
1047                 resize();
1048         }
1049
1050         if (widthChange || heightChange)
1051                 update();
1052 }
1053
1054
1055 bool BufferView::workAreaDispatch(FuncRequest const & cmd0)
1056 {
1057         //lyxerr << BOOST_CURRENT_FUNCTION << "[ cmd0 " << cmd0 << "]" << endl;
1058
1059         // This is only called for mouse related events including
1060         // LFUN_FILE_OPEN generated by drag-and-drop.
1061         FuncRequest cmd = cmd0;
1062
1063         if (!buffer_)
1064                 return false;
1065
1066         LCursor cur(*this);
1067         cur.push(buffer_->inset());
1068         cur.selection() = cursor_.selection();
1069
1070         // Doesn't go through lyxfunc, so we need to update
1071         // the layout choice etc. ourselves
1072
1073         // E.g. Qt mouse press when no buffer
1074         if (!buffer_)
1075                 return false;
1076
1077         // Either the inset under the cursor or the
1078         // surrounding LyXText will handle this event.
1079
1080         // Build temporary cursor.
1081         cmd.y = min(max(cmd.y, -1), height_);
1082         InsetBase * inset = buffer_->text().editXY(cur, cmd.x, cmd.y);
1083         //lyxerr << BOOST_CURRENT_FUNCTION
1084         //       << " * hit inset at tip: " << inset << endl;
1085         //lyxerr << BOOST_CURRENT_FUNCTION
1086         //       << " * created temp cursor:" << cur << endl;
1087
1088         // Put anchor at the same position.
1089         cur.resetAnchor();
1090
1091         // Try to dispatch to an non-editable inset near this position
1092         // via the temp cursor. If the inset wishes to change the real
1093         // cursor it has to do so explicitly by using
1094         //  cur.bv().cursor() = cur;  (or similar)
1095         if (inset)
1096                 inset->dispatch(cur, cmd);
1097
1098         // Now dispatch to the temporary cursor. If the real cursor should
1099         // be modified, the inset's dispatch has to do so explicitly.
1100         if (!cur.result().dispatched())
1101                 cur.dispatch(cmd);
1102
1103         if (cur.result().dispatched()) {
1104                 // Redraw if requested or necessary.
1105                 if (cur.result().update())
1106                         update(Update::FitCursor | Update::Force);
1107                 else
1108                         update(Update::FitCursor | Update::MultiParSel);
1109         }
1110
1111         return true;
1112 }
1113
1114
1115 void BufferView::scroll(int lines)
1116 {
1117 //      if (!buffer_)
1118 //              return;
1119 //
1120 //      LyXText const * t = &buffer_->text();
1121 //      int const line_height = defaultRowHeight();
1122 //
1123 //      // The new absolute coordinate
1124 //      int new_top_y = top_y() + lines * line_height;
1125 //
1126 //      // Restrict to a valid value
1127 //      new_top_y = std::min(t->height() - 4 * line_height, new_top_y);
1128 //      new_top_y = std::max(0, new_top_y);
1129 //
1130 //      scrollDocView(new_top_y);
1131 //
1132 //      // Update the scrollbar.
1133 //      workArea_->setScrollbarParams(t->height(), top_y(), defaultRowHeight());}
1134 }
1135
1136
1137 void BufferView::setCursorFromRow(int row)
1138 {
1139         int tmpid = -1;
1140         int tmppos = -1;
1141
1142         buffer_->texrow().getIdFromRow(row, tmpid, tmppos);
1143
1144         if (tmpid == -1)
1145                 buffer_->text().setCursor(cursor_, 0, 0);
1146         else
1147                 buffer_->text().setCursor(cursor_, buffer_->getParFromID(tmpid).pit(), tmppos);
1148 }
1149
1150
1151 void BufferView::gotoLabel(string const & label)
1152 {
1153         for (InsetIterator it = inset_iterator_begin(buffer_->inset()); it; ++it) {
1154                 vector<string> labels;
1155                 it->getLabelList(*buffer_, labels);
1156                 if (find(labels.begin(),labels.end(),label) != labels.end()) {
1157                         setCursor(it);
1158                         update();
1159                         return;
1160                 }
1161         }
1162 }
1163
1164
1165 LyXText * BufferView::getLyXText()
1166 {
1167         LyXText * text = cursor_.innerText();
1168         BOOST_ASSERT(text);
1169         return text;
1170 }
1171
1172
1173 LyXText const * BufferView::getLyXText() const
1174 {
1175         LyXText const * text = cursor_.innerText();
1176         BOOST_ASSERT(text);
1177         return text;
1178 }
1179
1180
1181 int BufferView::workHeight() const
1182 {
1183         return height_;
1184 }
1185
1186
1187 void BufferView::setCursor(DocIterator const & dit)
1188 {
1189         size_t const n = dit.depth();
1190         for (size_t i = 0; i < n; ++i)
1191                 dit[i].inset().edit(cursor_, true);
1192
1193         cursor_.setCursor(dit);
1194         cursor_.selection() = false;
1195 }
1196
1197
1198 void BufferView::mouseSetCursor(LCursor & cur)
1199 {
1200         BOOST_ASSERT(&cur.bv() == this);
1201
1202         // Has the cursor just left the inset?
1203         bool badcursor = false;
1204         if (&cursor_.inset() != &cur.inset())
1205                 badcursor = cursor_.inset().notifyCursorLeaves(cursor_);
1206
1207         // do the dEPM magic if needed
1208         // FIXME: move this to InsetText::notifyCursorLeaves?
1209         if (!badcursor && cursor_.inTexted())
1210                 cursor_.text()->deleteEmptyParagraphMechanism(cur, cursor_);
1211
1212         cursor_ = cur;
1213         cursor_.clearSelection();
1214         cursor_.setTargetX();
1215         finishUndo();
1216
1217 }
1218
1219
1220 void BufferView::putSelectionAt(DocIterator const & cur,
1221                                 int length, bool backwards)
1222 {
1223         cursor_.clearSelection();
1224
1225         setCursor(cur);
1226
1227         if (length) {
1228                 if (backwards) {
1229                         cursor_.pos() += length;
1230                         cursor_.setSelection(cursor_, -length);
1231                 } else
1232                         cursor_.setSelection(cursor_, length);
1233         }
1234 }
1235
1236
1237 LCursor & BufferView::cursor()
1238 {
1239         return cursor_;
1240 }
1241
1242
1243 LCursor const & BufferView::cursor() const
1244 {
1245         return cursor_;
1246 }
1247
1248
1249 lyx::pit_type BufferView::anchor_ref() const
1250 {
1251         return anchor_ref_;
1252 }
1253
1254
1255 ViewMetricsInfo const & BufferView::viewMetricsInfo()
1256 {
1257         return metrics_info_;
1258 }
1259
1260
1261 void BufferView::updateMetrics(bool singlepar)
1262 {
1263         // Remove old position cache
1264         theCoords.clear();
1265         LyXText & buftext = buffer_->text();
1266         lyx::pit_type size = int(buftext.paragraphs().size());
1267
1268         if (anchor_ref_ > int(buftext.paragraphs().size() - 1)) {
1269                 anchor_ref_ = int(buftext.paragraphs().size() - 1);
1270                 offset_ref_ = 0;
1271         }
1272
1273         lyx::pit_type const pit = anchor_ref_;
1274         int pit1 = pit;
1275         int pit2 = pit;
1276         size_t const npit = buftext.paragraphs().size();
1277
1278         // Rebreak anchor paragraph. In Single Paragraph mode, rebreak only
1279         // the (main text, not inset!) paragraph containing the cursor.
1280         // (if this paragraph contains insets etc., rebreaking will
1281         // recursively descend)
1282         if (!singlepar || pit == cursor_.bottom().pit())
1283                 buftext.redoParagraph(pit);
1284         int y0 = buftext.getPar(pit).ascent() - offset_ref_;
1285
1286         // Redo paragraphs above anchor if necessary; again, in Single Par
1287         // mode, only if we encounter the (main text) one having the cursor.
1288         int y1 = y0;
1289         while (y1 > 0 && pit1 > 0) {
1290                 y1 -= buftext.getPar(pit1).ascent();
1291                 --pit1;
1292                 if (!singlepar || pit1 == cursor_.bottom().pit())
1293                         buftext.redoParagraph(pit1);
1294                 y1 -= buftext.getPar(pit1).descent();
1295         }
1296
1297
1298         // Take care of ascent of first line
1299         y1 -= buftext.getPar(pit1).ascent();
1300
1301         // Normalize anchor for next time
1302         anchor_ref_ = pit1;
1303         offset_ref_ = -y1;
1304
1305         // Grey at the beginning is ugly
1306         if (pit1 == 0 && y1 > 0) {
1307                 y0 -= y1;
1308                 y1 = 0;
1309                 anchor_ref_ = 0;
1310         }
1311
1312         // Redo paragraphs below the anchor if necessary. Single par mode:
1313         // only the one containing the cursor if encountered.
1314         int y2 = y0;
1315         while (y2 < height_ && pit2 < int(npit) - 1) {
1316                 y2 += buftext.getPar(pit2).descent();
1317                 ++pit2;
1318                 if (!singlepar || pit2 == cursor_.bottom().pit())
1319                         buftext.redoParagraph(pit2);
1320                 y2 += buftext.getPar(pit2).ascent();
1321         }
1322
1323         // Take care of descent of last line
1324         y2 += buftext.getPar(pit2).descent();
1325
1326         // The coordinates of all these paragraphs are correct, cache them
1327         int y = y1;
1328         CoordCache::InnerParPosCache & parPos = theCoords.parPos()[&buftext];
1329         for (lyx::pit_type pit = pit1; pit <= pit2; ++pit) {
1330                 Paragraph const & par = buftext.getPar(pit);
1331                 y += par.ascent();
1332                 parPos[pit] = Point(0, y);
1333                 if (singlepar && pit == cursor_.bottom().pit()) {
1334                         // In Single Paragraph mode, collect here the
1335                         // y1 and y2 of the (one) paragraph the cursor is in
1336                         y1 = y - par.ascent();
1337                         y2 = y + par.descent();
1338                 }
1339                 y += par.descent();
1340         }
1341
1342         if (singlepar) {
1343                 // collect cursor paragraph iter bounds
1344                 pit1 = cursor_.bottom().pit();
1345                 pit2 = cursor_.bottom().pit();
1346         }
1347
1348         lyxerr[Debug::DEBUG]
1349                 << BOOST_CURRENT_FUNCTION
1350                 << " y1: " << y1
1351                 << " y2: " << y2
1352                 << " pit1: " << pit1
1353                 << " pit2: " << pit2
1354                 << " npit: " << npit
1355                 << " singlepar: " << singlepar
1356                 << "size: " << size
1357                 << endl;
1358
1359         metrics_info_ = ViewMetricsInfo(pit1, pit2, y1, y2, singlepar, size);
1360 }
1361
1362
1363 void BufferView::menuInsertLyXFile(string const & filenm)
1364 {
1365         BOOST_ASSERT(cursor_.inTexted());
1366         string filename = filenm;
1367
1368         if (filename.empty()) {
1369                 // Launch a file browser
1370                 // FIXME UNICODE
1371                 string initpath = lyxrc.document_path;
1372
1373                 if (buffer_) {
1374                         string const trypath = buffer_->filePath();
1375                         // If directory is writeable, use this as default.
1376                         if (isDirWriteable(trypath))
1377                                 initpath = trypath;
1378                 }
1379
1380                 // FIXME UNICODE
1381                 FileDialog fileDlg(_("Select LyX document to insert"),
1382                         LFUN_FILE_INSERT,
1383                         make_pair(_("Documents|#o#O"), lyx::from_utf8(lyxrc.document_path)),
1384                         make_pair(_("Examples|#E#e"), lyx::from_utf8(addPath(package().system_support(), "examples"))));
1385
1386                 FileDialog::Result result =
1387                         fileDlg.open(lyx::from_utf8(initpath),
1388                                      FileFilterList(_("LyX Documents (*.lyx)")),
1389                                      docstring());
1390
1391                 if (result.first == FileDialog::Later)
1392                         return;
1393
1394                 // FIXME UNICODE
1395                 filename = lyx::to_utf8(result.second);
1396
1397                 // check selected filename
1398                 if (filename.empty()) {
1399                         // emit message signal.
1400                         message(_("Canceled."));
1401                         return;
1402                 }
1403         }
1404
1405         // Get absolute path of file and add ".lyx"
1406         // to the filename if necessary
1407         filename = fileSearch(string(), filename, "lyx");
1408
1409         docstring const disp_fn = makeDisplayPath(filename);
1410         // emit message signal.
1411         message(bformat(_("Inserting document %1$s..."), disp_fn));
1412
1413         docstring res;
1414         Buffer buf("", false);
1415         if (::loadLyXFile(&buf, makeAbsPath(filename))) {
1416                 ErrorList & el = buffer_->errorList("Parse");
1417                 // Copy the inserted document error list into the current buffer one.
1418                 el = buf.errorList("Parse");
1419                 lyx::cap::pasteParagraphList(cursor_, buf.paragraphs(),
1420                                              buf.params().textclass, el);
1421                 res = _("Document %1$s inserted.");
1422         } else
1423                 res = _("Could not insert document %1$s");
1424
1425         // emit message signal.
1426         message(bformat(res, disp_fn));
1427         buffer_->errors("Parse");
1428         resize();
1429 }