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::CoordCache;
  82 using lyx::docstring;
  83 using lyx::pos_type;
  84 using lyx::Point;
  85
  86 using lyx::support::addPath;
  87 using lyx::support::bformat;
  88 using lyx::support::FileFilterList;
  89 using lyx::support::fileSearch;
  90 using lyx::support::isDirWriteable;
  91 using lyx::support::makeDisplayPath;
  92 using lyx::support::makeAbsPath;
  93 using lyx::support::package;
  94
  95 using std::distance;
  96 using std::endl;
  97 using std::istringstream;
  98 using std::find;
  99 using std::make_pair;
 100 using std::min;
 101 using std::max;
 102 using std::mem_fun_ref;
 103 using std::string;
 104 using std::vector;
 105
 106 namespace Alert = lyx::frontend::Alert;
 107
 108 namespace {
 109
 110 unsigned int const saved_positions_num = 20;
 111
 112
 113 /// Return an inset of this class if it exists at the current cursor position
 114 template <class T>
 115 T * getInsetByCode(LCursor & cur, InsetBase::Code code)
 116 {
 117         T * inset = 0;
 118         DocIterator it = cur;
 119         if (it.nextInset() &&
 120             it.nextInset()->lyxCode() == code) {
 121                 inset = static_cast<T*>(it.nextInset());
 122         }
 123         return inset;
 124 }
 125
 126 } // anon namespace
 127
 128
 129 BufferView::BufferView()
 130         : buffer_(0), wh_(0),
 131           cursor_(*this),
 132           multiparsel_cache_(false), anchor_ref_(0), offset_ref_(0),
 133           intl_(new Intl)
 134 {
 135         xsel_cache_.set = false;
 136
 137         saved_positions.resize(saved_positions_num);
 138         // load saved bookmarks
 139         lyx::Session::BookmarkList & bmList = LyX::ref().session().loadBookmarks();
 140         for (lyx::Session::BookmarkList::iterator bm = bmList.begin();
 141                 bm != bmList.end(); ++bm)
 142                 if (bm->get<0>() < saved_positions_num)
 143                         saved_positions[bm->get<0>()] = Position( bm->get<1>(), bm->get<2>(), bm->get<3>() );
 144         // and then clear them
 145         bmList.clear();
 146
 147         intl_->initKeyMapper(lyxrc.use_kbmap);
 148 }
 149
 150
 151 BufferView::~BufferView()
 152 {
 153 }
 154
 155
 156 Buffer * BufferView::buffer() const
 157 {
 158         return buffer_;
 159 }
 160
 161
 162 void BufferView::setBuffer(Buffer * b)
 163 {
 164         lyxerr[Debug::INFO] << BOOST_CURRENT_FUNCTION
 165                             << "[ b = " << b << "]" << endl;
 166
 167         if (buffer_) {
 168                 // Save the actual cursor position and anchor inside the
 169                 // buffer so that it can be restored in case we rechange
 170                 // to this buffer later on.
 171                 buffer_->saveCursor(cursor_.selectionBegin(),
 172                                     cursor_.selectionEnd());
 173                 // current buffer is going to be switched-off, save cursor pos
 174                 LyX::ref().session().saveFilePosition(buffer_->fileName(),
 175                         boost::tie(cursor_.pit(), cursor_.pos()) );
 176         }
 177
 178         // If we're quitting lyx, don't bother updating stuff
 179         if (quitting) {
 180                 buffer_ = 0;
 181                 return;
 182         }
 183
 184         // If we are closing current buffer, switch to the first in
 185         // buffer list.
 186         if (!b) {
 187                 lyxerr[Debug::INFO] << BOOST_CURRENT_FUNCTION
 188                                     << " No Buffer!" << endl;
 189                 // We are closing the buffer, use the first buffer as current
 190                 buffer_ = theBufferList().first();
 191         } else {
 192                 // Set current buffer
 193                 buffer_ = b;
 194         }
 195
 196         // Reset old cursor
 197         cursor_ = LCursor(*this);
 198         anchor_ref_ = 0;
 199         offset_ref_ = 0;
 200
 201         if (buffer_) {
 202                 lyxerr[Debug::INFO] << BOOST_CURRENT_FUNCTION
 203                                     << "Buffer addr: " << buffer_ << endl;
 204                 cursor_.push(buffer_->inset());
 205                 cursor_.resetAnchor();
 206                 buffer_->text().init(this);
 207                 buffer_->text().setCurrentFont(cursor_);
 208                 if (buffer_->getCursor().size() > 0 &&
 209                     buffer_->getAnchor().size() > 0)
 210                 {
 211                         cursor_.setCursor(buffer_->getAnchor().asDocIterator(&(buffer_->inset())));
 212                         cursor_.resetAnchor();
 213                         cursor_.setCursor(buffer_->getCursor().asDocIterator(&(buffer_->inset())));
 214                         cursor_.setSelection();
 215                 }
 216         }
 217
 218         update();
 219
 220         if (buffer_ && lyx::graphics::Previews::status() != LyXRC::PREVIEW_OFF)
 221                 lyx::graphics::Previews::get().generateBufferPreviews(*buffer_);
 222 }
 223
 224
 225 bool BufferView::loadLyXFile(string const & filename, bool tolastfiles)
 226 {
 227         // Get absolute path of file and add ".lyx"
 228         // to the filename if necessary
 229         string s = fileSearch(string(), filename, "lyx");
 230
 231         bool const found = !s.empty();
 232
 233         if (!found)
 234                 s = filename;
 235
 236         // File already open?
 237         if (theBufferList().exists(s)) {
 238                 docstring const file = makeDisplayPath(s, 20);
 239                 docstring text = bformat(_("The document %1$s is already "
 240                                                      "loaded.\n\nDo you want to revert "
 241                                                      "to the saved version?"), file);
 242                 int const ret = Alert::prompt(_("Revert to saved document?"),
 243                         text, 0, 1,  _("&Revert"), _("&Switch to document"));
 244
 245                 if (ret != 0) {
 246                         setBuffer(theBufferList().getBuffer(s));
 247                         return true;
 248                 }
 249                 // FIXME: should be LFUN_REVERT
 250                 if (!theBufferList().close(theBufferList().getBuffer(s), false))
 251                         return false;
 252                 // Fall through to new load. (Asger)
 253         }
 254
 255         Buffer * b = 0;
 256
 257         if (found) {
 258                 b = theBufferList().newBuffer(s);
 259                 if (!::loadLyXFile(b, s)) {
 260                         theBufferList().release(b);
 261                         return false;
 262                 }
 263         } else {
 264                 docstring text = bformat(_("The document %1$s does not yet "
 265                                                      "exist.\n\nDo you want to create "
 266                                                      "a new document?"), lyx::from_utf8(s));
 267                 int const ret = Alert::prompt(_("Create new document?"),
 268                          text, 0, 1, _("&Create"), _("Cancel"));
 269
 270                 if (ret == 0) {
 271                         b = newFile(s, string(), true);
 272                         if (!b)
 273                                 return false;
 274                 } else
 275                         return false;
 276         }
 277
 278         setBuffer(b);
 279         // Send the "errors" signal in case of parsing errors
 280         b->errors("Parse");
 281
 282         // scroll to the position when the file was last closed
 283         if (lyxrc.use_lastfilepos) {
 284                 lyx::pit_type pit;
 285                 lyx::pos_type pos;
 286                 boost::tie(pit, pos) = LyX::ref().session().loadFilePosition(s);
 287                 // I am not sure how to separate the following part to a function
 288                 // so I will leave this to Lars.
 289                 //
 290                 // check pit since the document may be externally changed.
 291                 if ( static_cast<size_t>(pit) < b->paragraphs().size() ) {
 292                         ParIterator it = b->par_iterator_begin();
 293                         ParIterator const end = b->par_iterator_end();
 294                         for (; it != end; ++it)
 295                                 if (it.pit() == pit) {
 296                                         // restored pos may be bigger than it->size
 297                                         setCursor(makeDocIterator(it, min(pos, it->size())));
 298                                         update(Update::FitCursor);
 299                                         break;
 300                                 }
 301                 }
 302         }
 303
 304         if (tolastfiles)
 305                 LyX::ref().session().addLastFile(b->fileName());
 306
 307         return true;
 308 }
 309
 310
 311 void BufferView::reload()
 312 {
 313         string const fn = buffer_->fileName();
 314         if (theBufferList().close(buffer_, false))
 315                 loadLyXFile(fn);
 316 }
 317
 318
 319 void BufferView::resize()
 320 {
 321         if (!buffer_)
 322                 return;
 323
 324         lyxerr[Debug::DEBUG] << BOOST_CURRENT_FUNCTION << endl;
 325
 326         buffer_->text().init(this);
 327         update();
 328         switchKeyMap();
 329 }
 330
 331
 332 bool BufferView::fitCursor()
 333 {
 334         if (bv_funcs::status(this, cursor_) == bv_funcs::CUR_INSIDE) {
 335                 lyx::frontend::FontMetrics const & fm =
 336                         theFontMetrics(cursor_.getFont());
 337                 int const asc = fm.maxAscent();
 338                 int const des = fm.maxDescent();
 339                 Point const p = bv_funcs::getPos(*this, cursor_, cursor_.boundary());
 340                 if (p.y_ - asc >= 0 && p.y_ + des < height_)
 341                         return false;
 342         }
 343         center();
 344         return true;
 345 }
 346
 347
 348 bool BufferView::multiParSel()
 349 {
 350         if (!cursor_.selection())
 351                 return false;
 352         bool ret = multiparsel_cache_;
 353         multiparsel_cache_ = cursor_.selBegin().pit() != cursor_.selEnd().pit();
 354         // Either this, or previous selection spans paragraphs
 355         return ret || multiparsel_cache_;
 356 }
 357
 358
 359 bool BufferView::update(Update::flags flags)
 360 {
 361         // This is close to a hot-path.
 362         if (lyxerr.debugging(Debug::DEBUG)) {
 363                 lyxerr[Debug::DEBUG]
 364                         << BOOST_CURRENT_FUNCTION
 365                         << "[fitcursor = " << (flags & Update::FitCursor)
 366                         << ", forceupdate = " << (flags & Update::Force)
 367                         << ", singlepar = " << (flags & Update::SinglePar)
 368                         << "]  buffer: " << buffer_ << endl;
 369         }
 370
 371         // Check needed to survive LyX startup
 372         if (!buffer_)
 373                 return false;
 374
 375         // Update macro store
 376         buffer_->buildMacros();
 377
 378         // First drawing step
 379         updateMetrics(flags & Update::SinglePar);
 380
 381         // The second drawing step is done in WorkArea::redraw() if needed.
 382         bool const need_second_step =
 383                 (flags & (Update::Force | Update::FitCursor | Update::MultiParSel))
 384                 && (fitCursor() || multiParSel());
 385
 386         return need_second_step;
 387 }
 388
 389
 390 void BufferView::updateScrollbar()
 391 {
 392         if (!buffer_) {
 393                 lyxerr[Debug::DEBUG] << BOOST_CURRENT_FUNCTION
 394                                      << " no text in updateScrollbar" << endl;
 395                 scrollbarParameters_.reset();
 396                 return;
 397         }
 398
 399         LyXText & t = buffer_->text();
 400         int const parsize = int(t.paragraphs().size() - 1);
 401         if (anchor_ref_ >  parsize)  {
 402                 anchor_ref_ = parsize;
 403                 offset_ref_ = 0;
 404         }
 405
 406         lyxerr[Debug::GUI]
 407                 << BOOST_CURRENT_FUNCTION
 408                 << " Updating scrollbar: height: " << t.paragraphs().size()
 409                 << " curr par: " << cursor_.bottom().pit()
 410                 << " default height " << defaultRowHeight() << endl;
 411
 412         // It would be better to fix the scrollbar to understand
 413         // values in [0..1] and divide everything by wh
 414
 415         // estimated average paragraph height:
 416         if (wh_ == 0)
 417                 wh_ = height_ / 4;
 418         int h = t.getPar(anchor_ref_).height();
 419
 420         // Normalize anchor/offset (MV):
 421         while (offset_ref_ > h && anchor_ref_ < parsize) {
 422                 anchor_ref_++;
 423                 offset_ref_ -= h;
 424                 h = t.getPar(anchor_ref_).height();
 425         }
 426         // Look at paragraph heights on-screen
 427         int sumh = 0;
 428         int nh = 0;
 429         for (lyx::pit_type pit = anchor_ref_; pit <= parsize; ++pit) {
 430                 if (sumh > height_)
 431                         break;
 432                 int const h2 = t.getPar(pit).height();
 433                 sumh += h2;
 434                 nh++;
 435         }
 436         int const hav = sumh / nh;
 437         // More realistic average paragraph height
 438         if (hav > wh_)
 439                 wh_ = hav;
 440
 441         scrollbarParameters_.height = (parsize + 1) * wh_;
 442         scrollbarParameters_.position = anchor_ref_ * wh_ + int(offset_ref_ * wh_ / float(h));
 443         scrollbarParameters_.lineScrollHeight = int(wh_ * defaultRowHeight() / float(h));
 444 }
 445
 446
 447 ScrollbarParameters const & BufferView::scrollbarParameters() const
 448 {
 449         return scrollbarParameters_;
 450 }
 451
 452
 453 void BufferView::scrollDocView(int value)
 454 {
 455         lyxerr[Debug::GUI] << BOOST_CURRENT_FUNCTION
 456                            << "[ value = " << value << "]" << endl;
 457
 458         if (!buffer_)
 459                 return;
 460
 461         LyXText & t = buffer_->text();
 462
 463         float const bar = value / float(wh_ * t.paragraphs().size());
 464
 465         anchor_ref_ = int(bar * t.paragraphs().size());
 466         if (anchor_ref_ >  int(t.paragraphs().size()) - 1)
 467                 anchor_ref_ = int(t.paragraphs().size()) - 1;
 468         t.redoParagraph(anchor_ref_);
 469         int const h = t.getPar(anchor_ref_).height();
 470         offset_ref_ = int((bar * t.paragraphs().size() - anchor_ref_) * h);
 471 }
 472
 473
 474 void BufferView::setCursorFromScrollbar()
 475 {
 476         LyXText & t = buffer_->text();
 477
 478         int const height = 2 * defaultRowHeight();
 479         int const first = height;
 480         int const last = height_ - height;
 481         LCursor & cur = cursor_;
 482
 483         bv_funcs::CurStatus st = bv_funcs::status(this, cur);
 484
 485         switch (st) {
 486         case bv_funcs::CUR_ABOVE:
 487                 t.setCursorFromCoordinates(cur, 0, first);
 488                 cur.clearSelection();
 489                 break;
 490         case bv_funcs::CUR_BELOW:
 491                 t.setCursorFromCoordinates(cur, 0, last);
 492                 cur.clearSelection();
 493                 break;
 494         case bv_funcs::CUR_INSIDE:
 495                 int const y = bv_funcs::getPos(*this, cur, cur.boundary()).y_;
 496                 int const newy = min(last, max(y, first));
 497                 if (y != newy) {
 498                         cur.reset(buffer_->inset());
 499                         t.setCursorFromCoordinates(cur, 0, newy);
 500                 }
 501         }
 502 }
 503
 504
 505 Change const BufferView::getCurrentChange() const
 506 {
 507         if (!cursor_.selection())
 508                 return Change(Change::UNCHANGED);
 509
 510         DocIterator dit = cursor_.selectionBegin();
 511         return dit.paragraph().lookupChange(dit.pos());
 512 }
 513
 514
 515 void BufferView::savePosition(unsigned int i)
 516 {
 517         if (i >= saved_positions_num)
 518                 return;
 519         BOOST_ASSERT(cursor_.inTexted());
 520         saved_positions[i] = Position(buffer_->fileName(),
 521                                       cursor_.paragraph().id(),
 522                                       cursor_.pos());
 523         if (i > 0)
 524                 // emit message signal.
 525                 message(bformat(_("Saved bookmark %1$d"), i));
 526 }
 527
 528
 529 void BufferView::restorePosition(unsigned int i)
 530 {
 531         if (i >= saved_positions_num)
 532                 return;
 533
 534         string const fname = saved_positions[i].filename;
 535
 536         cursor_.clearSelection();
 537
 538         if (fname != buffer_->fileName()) {
 539                 Buffer * b = 0;
 540                 if (theBufferList().exists(fname))
 541                         b = theBufferList().getBuffer(fname);
 542                 else {
 543                         b = theBufferList().newBuffer(fname);
 544                         // Don't ask, just load it
 545                         ::loadLyXFile(b, fname);
 546                 }
 547                 if (b)
 548                         setBuffer(b);
 549         }
 550
 551         ParIterator par = buffer_->getParFromID(saved_positions[i].par_id);
 552         if (par == buffer_->par_iterator_end())
 553                 return;
 554
 555         setCursor(makeDocIterator(par, min(par->size(), saved_positions[i].par_pos)));
 556
 557         if (i > 0)
 558                 // emit message signal.
 559                 message(bformat(_("Moved to bookmark %1$d"), i));
 560 }
 561
 562
 563 bool BufferView::isSavedPosition(unsigned int i)
 564 {
 565         return i < saved_positions_num && !saved_positions[i].filename.empty();
 566 }
 567
 568 void BufferView::saveSavedPositions()
 569 {
 570         // save bookmarks. It is better to use the pit interface
 571         // but I do not know how to effectively convert between
 572         // par_id and pit.
 573         for (unsigned int i=1; i < saved_positions_num; ++i) {
 574                 if ( isSavedPosition(i) )
 575                         LyX::ref().session().saveBookmark( boost::tie(
 576                                 i,
 577                                 saved_positions[i].filename,
 578                                 saved_positions[i].par_id,
 579                                 saved_positions[i].par_pos) );
 580         }
 581 }
 582
 583 void BufferView::switchKeyMap()
 584 {
 585         if (!lyxrc.rtl_support)
 586                 return;
 587
 588         if (getLyXText()->real_current_font.isRightToLeft()) {
 589                 if (intl_->keymap == Intl::PRIMARY)
 590                         intl_->keyMapSec();
 591         } else {
 592                 if (intl_->keymap == Intl::SECONDARY)
 593                         intl_->keyMapPrim();
 594         }
 595 }
 596
 597
 598 int BufferView::workWidth() const
 599 {
 600         return width_;
 601 }
 602
 603
 604 void BufferView::center()
 605 {
 606         CursorSlice & bot = cursor_.bottom();
 607         lyx::pit_type const pit = bot.pit();
 608         bot.text()->redoParagraph(pit);
 609         Paragraph const & par = bot.text()->paragraphs()[pit];
 610         anchor_ref_ = pit;
 611         offset_ref_ = bv_funcs::coordOffset(*this, cursor_, cursor_.boundary()).y_
 612                 + par.ascent() - height_ / 2;
 613 }
 614
 615
 616 FuncStatus BufferView::getStatus(FuncRequest const & cmd)
 617 {
 618         FuncStatus flag;
 619
 620         switch (cmd.action) {
 621
 622         case LFUN_UNDO:
 623                 flag.enabled(!buffer_->undostack().empty());
 624                 break;
 625         case LFUN_REDO:
 626                 flag.enabled(!buffer_->redostack().empty());
 627                 break;
 628         case LFUN_FILE_INSERT:
 629         case LFUN_FILE_INSERT_ASCII_PARA:
 630         case LFUN_FILE_INSERT_ASCII:
 631         case LFUN_BOOKMARK_SAVE:
 632                 // FIXME: Actually, these LFUNS should be moved to LyXText
 633                 flag.enabled(cursor_.inTexted());
 634                 break;
 635         case LFUN_FONT_STATE:
 636         case LFUN_LABEL_INSERT:
 637         case LFUN_PARAGRAPH_GOTO:
 638         // FIXME handle non-trivially
 639         case LFUN_OUTLINE_UP:
 640         case LFUN_OUTLINE_DOWN:
 641         case LFUN_OUTLINE_IN:
 642         case LFUN_OUTLINE_OUT:
 643         case LFUN_NOTE_NEXT:
 644         case LFUN_REFERENCE_NEXT:
 645         case LFUN_WORD_FIND:
 646         case LFUN_WORD_REPLACE:
 647         case LFUN_MARK_OFF:
 648         case LFUN_MARK_ON:
 649         case LFUN_MARK_TOGGLE:
 650         case LFUN_SCREEN_RECENTER:
 651         case LFUN_BIBTEX_DATABASE_ADD:
 652         case LFUN_BIBTEX_DATABASE_DEL:
 653         case LFUN_WORDS_COUNT:
 654         case LFUN_NEXT_INSET_TOGGLE:
 655                 flag.enabled(true);
 656                 break;
 657
 658         case LFUN_LABEL_GOTO: {
 659                 flag.enabled(!cmd.argument().empty()
 660                     || getInsetByCode<InsetRef>(cursor_, InsetBase::REF_CODE));
 661                 break;
 662         }
 663
 664         case LFUN_BOOKMARK_GOTO:
 665                 flag.enabled(isSavedPosition(convert<unsigned int>(lyx::to_utf8(cmd.argument()))));
 666                 break;
 667
 668         case LFUN_CHANGES_TRACK:
 669                 flag.enabled(true);
 670                 flag.setOnOff(buffer_->params().trackChanges);
 671                 break;
 672
 673         case LFUN_CHANGES_OUTPUT: {
 674                 OutputParams runparams;
 675                 LaTeXFeatures features(*buffer_, buffer_->params(), runparams);
 676                 flag.enabled(buffer_ && features.isAvailable("dvipost"));
 677                 flag.setOnOff(buffer_->params().outputChanges);
 678                 break;
 679         }
 680
 681         case LFUN_CHANGES_MERGE:
 682         case LFUN_CHANGE_NEXT:
 683         case LFUN_ALL_CHANGES_ACCEPT:
 684         case LFUN_ALL_CHANGES_REJECT:
 685                 flag.enabled(buffer_); // FIXME: Change tracking (MG)
 686                 break;
 687
 688         case LFUN_BUFFER_TOGGLE_COMPRESSION: {
 689                 flag.setOnOff(buffer_->params().compressed);
 690                 break;
 691         }
 692
 693         default:
 694                 flag.enabled(false);
 695         }
 696
 697         return flag;
 698 }
 699
 700
 701 bool BufferView::dispatch(FuncRequest const & cmd)
 702 {
 703         //lyxerr << BOOST_CURRENT_FUNCTION
 704         //       << [ cmd = " << cmd << "]" << endl;
 705
 706         // Make sure that the cached BufferView is correct.
 707         lyxerr[Debug::ACTION] << BOOST_CURRENT_FUNCTION
 708                 << " action[" << cmd.action << ']'
 709                 << " arg[" << lyx::to_utf8(cmd.argument()) << ']'
 710                 << " x[" << cmd.x << ']'
 711                 << " y[" << cmd.y << ']'
 712                 << " button[" << cmd.button() << ']'
 713                 << endl;
 714
 715         LCursor & cur = cursor_;
 716
 717         switch (cmd.action) {
 718
 719         case LFUN_UNDO:
 720                 if (buffer_) {
 721                         cur.message(_("Undo"));
 722                         cur.clearSelection();
 723                         if (!textUndo(*this))
 724                                 cur.message(_("No further undo information"));
 725                         update();
 726                         switchKeyMap();
 727                 }
 728                 break;
 729
 730         case LFUN_REDO:
 731                 if (buffer_) {
 732                         cur.message(_("Redo"));
 733                         cur.clearSelection();
 734                         if (!textRedo(*this))
 735                                 cur.message(_("No further redo information"));
 736                         update();
 737                         switchKeyMap();
 738                 }
 739                 break;
 740
 741         case LFUN_FILE_INSERT:
 742                 // FIXME: We don't know the encoding of filenames
 743                 menuInsertLyXFile(lyx::to_utf8(cmd.argument()));
 744                 break;
 745
 746         case LFUN_FILE_INSERT_ASCII_PARA:
 747                 // FIXME: We don't know the encoding of filenames
 748                 insertAsciiFile(this, lyx::to_utf8(cmd.argument()), true);
 749                 break;
 750
 751         case LFUN_FILE_INSERT_ASCII:
 752                 // FIXME: We don't know the encoding of filenames
 753                 insertAsciiFile(this, lyx::to_utf8(cmd.argument()), false);
 754                 break;
 755
 756         case LFUN_FONT_STATE:
 757                 cur.message(lyx::from_utf8(cur.currentState()));
 758                 break;
 759
 760         case LFUN_BOOKMARK_SAVE:
 761                 savePosition(convert<unsigned int>(lyx::to_utf8(cmd.argument())));
 762                 break;
 763
 764         case LFUN_BOOKMARK_GOTO:
 765                 restorePosition(convert<unsigned int>(lyx::to_utf8(cmd.argument())));
 766                 break;
 767
 768         case LFUN_LABEL_GOTO: {
 769                 docstring label = cmd.argument();
 770                 if (label.empty()) {
 771                         InsetRef * inset =
 772                                 getInsetByCode<InsetRef>(cursor_,
 773                                                          InsetBase::REF_CODE);
 774                         if (inset) {
 775                                 label = lyx::from_utf8(inset->getContents());
 776                                 savePosition(0);
 777                         }
 778                 }
 779
 780                 if (!label.empty())
 781                         gotoLabel(label);
 782                 break;
 783         }
 784
 785         case LFUN_PARAGRAPH_GOTO: {
 786                 int const id = convert<int>(lyx::to_utf8(cmd.argument()));
 787                 ParIterator par = buffer_->getParFromID(id);
 788                 if (par == buffer_->par_iterator_end()) {
 789                         lyxerr[Debug::INFO] << "No matching paragraph found! ["
 790                                             << id << ']' << endl;
 791                         break;
 792                 } else {
 793                         lyxerr[Debug::INFO] << "Paragraph " << par->id()
 794                                             << " found." << endl;
 795                 }
 796
 797                 // Set the cursor
 798                 setCursor(makeDocIterator(par, 0));
 799
 800                 update();
 801                 switchKeyMap();
 802                 break;
 803         }
 804
 805         case LFUN_OUTLINE_UP:
 806                 lyx::toc::outline(lyx::toc::Up, cursor_);
 807                 cursor_.text()->setCursor(cursor_, cursor_.pit(), 0);
 808                 updateLabels(*buffer_);
 809                 break;
 810         case LFUN_OUTLINE_DOWN:
 811                 lyx::toc::outline(lyx::toc::Down, cursor_);
 812                 cursor_.text()->setCursor(cursor_, cursor_.pit(), 0);
 813                 updateLabels(*buffer_);
 814                 break;
 815         case LFUN_OUTLINE_IN:
 816                 lyx::toc::outline(lyx::toc::In, cursor_);
 817                 updateLabels(*buffer_);
 818                 break;
 819         case LFUN_OUTLINE_OUT:
 820                 lyx::toc::outline(lyx::toc::Out, cursor_);
 821                 updateLabels(*buffer_);
 822                 break;
 823
 824         case LFUN_NOTE_NEXT:
 825                 bv_funcs::gotoInset(this, InsetBase::NOTE_CODE, false);
 826                 break;
 827
 828         case LFUN_REFERENCE_NEXT: {
 829                 vector<InsetBase_code> tmp;
 830                 tmp.push_back(InsetBase::LABEL_CODE);
 831                 tmp.push_back(InsetBase::REF_CODE);
 832                 bv_funcs::gotoInset(this, tmp, true);
 833                 break;
 834         }
 835
 836         case LFUN_CHANGES_TRACK:
 837                 buffer_->params().trackChanges = !buffer_->params().trackChanges;
 838                 break;
 839
 840         case LFUN_CHANGES_OUTPUT: {
 841                 buffer_->params().outputChanges = !buffer_->params().outputChanges;
 842                 break;
 843         }
 844
 845         case LFUN_CHANGE_NEXT:
 846                 lyx::find::findNextChange(this);
 847                 break;
 848
 849         case LFUN_CHANGES_MERGE:
 850                 if (lyx::find::findNextChange(this))
 851                         showDialog("changes");
 852                 break;
 853
 854         case LFUN_ALL_CHANGES_ACCEPT: {
 855                 cursor_.reset(buffer_->inset());
 856 #ifdef WITH_WARNINGS
 857 #warning FIXME changes
 858 #endif
 859                 while (lyx::find::findNextChange(this))
 860                         getLyXText()->acceptChange(cursor_);
 861                 update();
 862                 break;
 863         }
 864
 865         case LFUN_ALL_CHANGES_REJECT: {
 866                 cursor_.reset(buffer_->inset());
 867 #ifdef WITH_WARNINGS
 868 #warning FIXME changes
 869 #endif
 870                 while (lyx::find::findNextChange(this))
 871                         getLyXText()->rejectChange(cursor_);
 872                 break;
 873         }
 874
 875         case LFUN_WORD_FIND:
 876                 lyx::find::find(this, cmd);
 877                 break;
 878
 879         case LFUN_WORD_REPLACE:
 880                 lyx::find::replace(this, cmd);
 881                 break;
 882
 883         case LFUN_MARK_OFF:
 884                 cur.clearSelection();
 885                 cur.resetAnchor();
 886                 cur.message(lyx::from_utf8(N_("Mark off")));
 887                 break;
 888
 889         case LFUN_MARK_ON:
 890                 cur.clearSelection();
 891                 cur.mark() = true;
 892                 cur.resetAnchor();
 893                 cur.message(lyx::from_utf8(N_("Mark on")));
 894                 break;
 895
 896         case LFUN_MARK_TOGGLE:
 897                 cur.clearSelection();
 898                 if (cur.mark()) {
 899                         cur.mark() = false;
 900                         cur.message(lyx::from_utf8(N_("Mark removed")));
 901                 } else {
 902                         cur.mark() = true;
 903                         cur.message(lyx::from_utf8(N_("Mark set")));
 904                 }
 905                 cur.resetAnchor();
 906                 break;
 907
 908         case LFUN_SCREEN_RECENTER:
 909                 center();
 910                 break;
 911
 912         case LFUN_BIBTEX_DATABASE_ADD: {
 913                 LCursor tmpcur = cursor_;
 914                 bv_funcs::findInset(tmpcur, InsetBase::BIBTEX_CODE, false);
 915                 InsetBibtex * inset = getInsetByCode<InsetBibtex>(tmpcur,
 916                                                 InsetBase::BIBTEX_CODE);
 917                 if (inset) {
 918                         if (inset->addDatabase(lyx::to_utf8(cmd.argument())))
 919                                 buffer_->updateBibfilesCache();
 920                 }
 921                 break;
 922         }
 923
 924         case LFUN_BIBTEX_DATABASE_DEL: {
 925                 LCursor tmpcur = cursor_;
 926                 bv_funcs::findInset(tmpcur, InsetBase::BIBTEX_CODE, false);
 927                 InsetBibtex * inset = getInsetByCode<InsetBibtex>(tmpcur,
 928                                                 InsetBase::BIBTEX_CODE);
 929                 if (inset) {
 930                         if (inset->delDatabase(lyx::to_utf8(cmd.argument())))
 931                                 buffer_->updateBibfilesCache();
 932                 }
 933                 break;
 934         }
 935
 936         case LFUN_WORDS_COUNT: {
 937                 DocIterator from, to;
 938                 if (cur.selection()) {
 939                         from = cur.selectionBegin();
 940                         to = cur.selectionEnd();
 941                 } else {
 942                         from = doc_iterator_begin(buffer_->inset());
 943                         to = doc_iterator_end(buffer_->inset());
 944                 }
 945                 int const count = countWords(from, to);
 946                 docstring message;
 947                 if (count != 1) {
 948                         if (cur.selection())
 949                                 message = bformat(_("%1$d words in selection."),
 950                                           count);
 951                                 else
 952                                         message = bformat(_("%1$d words in document."),
 953                                                           count);
 954                 }
 955                 else {
 956                         if (cur.selection())
 957                                 message = _("One word in selection.");
 958                         else
 959                                 message = _("One word in document.");
 960                 }
 961
 962                 Alert::information(_("Count words"), message);
 963         }
 964                 break;
 965
 966         case LFUN_BUFFER_TOGGLE_COMPRESSION:
 967                 // turn compression on/off
 968                 buffer_->params().compressed = !buffer_->params().compressed;
 969                 break;
 970
 971         case LFUN_NEXT_INSET_TOGGLE: {
 972                 // this is the real function we want to invoke
 973                 FuncRequest tmpcmd = FuncRequest(LFUN_INSET_TOGGLE, cmd.origin);
 974                 // if there is an inset at cursor, see whether it
 975                 // wants to toggle.
 976                 InsetBase * inset = cur.nextInset();
 977                 if (inset && inset->isActive()) {
 978                         LCursor tmpcur = cur;
 979                         tmpcur.pushLeft(*inset);
 980                         inset->dispatch(tmpcur, tmpcmd);
 981                         if (tmpcur.result().dispatched()) {
 982                                 cur.dispatched();
 983                         }
 984                 }
 985                 // if it did not work, try the underlying inset.
 986                 if (!cur.result().dispatched())
 987                         cur.dispatch(tmpcmd);
 988
 989                 if (cur.result().dispatched())
 990                         cur.clearSelection();
 991
 992                 break;
 993         }
 994
 995         default:
 996                 return false;
 997         }
 998
 999         return true;
1000 }
1001
1002
1003 docstring const BufferView::requestSelection()
1004 {
1005         if (!buffer_)
1006                 return docstring();
1007
1008         LCursor & cur = cursor_;
1009
1010         if (!cur.selection()) {
1011                 xsel_cache_.set = false;
1012                 return docstring();
1013         }
1014
1015         if (!xsel_cache_.set ||
1016             cur.top() != xsel_cache_.cursor ||
1017             cur.anchor_.top() != xsel_cache_.anchor)
1018         {
1019                 xsel_cache_.cursor = cur.top();
1020                 xsel_cache_.anchor = cur.anchor_.top();
1021                 xsel_cache_.set = cur.selection();
1022                 return cur.selectionAsString(false);
1023         }
1024         return docstring();
1025 }
1026
1027
1028 void BufferView::clearSelection()
1029 {
1030         if (buffer_) {
1031                 cursor_.clearSelection();
1032                 xsel_cache_.set = false;
1033         }
1034 }
1035
1036
1037 void BufferView::workAreaResize(int width, int height)
1038 {
1039         bool const widthChange = width != width_;
1040         bool const heightChange = height != height_;
1041
1042         // Update from work area
1043         width_ = width;
1044         height_ = height;
1045
1046         if (buffer_ && widthChange) {
1047                 // The WorkArea content needs a resize
1048                 resize();
1049         }
1050
1051         if (widthChange || heightChange)
1052                 update();
1053 }
1054
1055
1056 bool BufferView::workAreaDispatch(FuncRequest const & cmd0)
1057 {
1058         //lyxerr << BOOST_CURRENT_FUNCTION << "[ cmd0 " << cmd0 << "]" << endl;
1059
1060         // This is only called for mouse related events including
1061         // LFUN_FILE_OPEN generated by drag-and-drop.
1062         FuncRequest cmd = cmd0;
1063
1064         if (!buffer_)
1065                 return false;
1066
1067         LCursor cur(*this);
1068         cur.push(buffer_->inset());
1069         cur.selection() = cursor_.selection();
1070
1071         // Doesn't go through lyxfunc, so we need to update
1072         // the layout choice etc. ourselves
1073
1074         // E.g. Qt mouse press when no buffer
1075         if (!buffer_)
1076                 return false;
1077
1078         // Either the inset under the cursor or the
1079         // surrounding LyXText will handle this event.
1080
1081         // Build temporary cursor.
1082         cmd.y = min(max(cmd.y, -1), height_);
1083         InsetBase * inset = buffer_->text().editXY(cur, cmd.x, cmd.y);
1084         //lyxerr << BOOST_CURRENT_FUNCTION
1085         //       << " * hit inset at tip: " << inset << endl;
1086         //lyxerr << BOOST_CURRENT_FUNCTION
1087         //       << " * created temp cursor:" << cur << endl;
1088
1089         // Put anchor at the same position.
1090         cur.resetAnchor();
1091
1092         // Try to dispatch to an non-editable inset near this position
1093         // via the temp cursor. If the inset wishes to change the real
1094         // cursor it has to do so explicitly by using
1095         //  cur.bv().cursor() = cur;  (or similar)
1096         if (inset)
1097                 inset->dispatch(cur, cmd);
1098
1099         // Now dispatch to the temporary cursor. If the real cursor should
1100         // be modified, the inset's dispatch has to do so explicitly.
1101         if (!cur.result().dispatched())
1102                 cur.dispatch(cmd);
1103
1104         if (cur.result().dispatched()) {
1105                 // Redraw if requested or necessary.
1106                 if (cur.result().update())
1107                         update(Update::FitCursor | Update::Force);
1108                 else
1109                         update(Update::FitCursor | Update::MultiParSel);
1110         }
1111
1112         return true;
1113 }
1114
1115
1116 void BufferView::scroll(int lines)
1117 {
1118 //      if (!buffer_)
1119 //              return;
1120 //
1121 //      LyXText const * t = &buffer_->text();
1122 //      int const line_height = defaultRowHeight();
1123 //
1124 //      // The new absolute coordinate
1125 //      int new_top_y = top_y() + lines * line_height;
1126 //
1127 //      // Restrict to a valid value
1128 //      new_top_y = std::min(t->height() - 4 * line_height, new_top_y);
1129 //      new_top_y = std::max(0, new_top_y);
1130 //
1131 //      scrollDocView(new_top_y);
1132 //
1133 //      // Update the scrollbar.
1134 //      workArea_->setScrollbarParams(t->height(), top_y(), defaultRowHeight());}
1135 }
1136
1137
1138 void BufferView::setCursorFromRow(int row)
1139 {
1140         int tmpid = -1;
1141         int tmppos = -1;
1142
1143         buffer_->texrow().getIdFromRow(row, tmpid, tmppos);
1144
1145         if (tmpid == -1)
1146                 buffer_->text().setCursor(cursor_, 0, 0);
1147         else
1148                 buffer_->text().setCursor(cursor_, buffer_->getParFromID(tmpid).pit(), tmppos);
1149 }
1150
1151
1152 void BufferView::gotoLabel(docstring const & label)
1153 {
1154         for (InsetIterator it = inset_iterator_begin(buffer_->inset()); it; ++it) {
1155                 vector<docstring> labels;
1156                 it->getLabelList(*buffer_, labels);
1157                 if (find(labels.begin(),labels.end(),label) != labels.end()) {
1158                         setCursor(it);
1159                         update();
1160                         return;
1161                 }
1162         }
1163 }
1164
1165
1166 LyXText * BufferView::getLyXText()
1167 {
1168         LyXText * text = cursor_.innerText();
1169         BOOST_ASSERT(text);
1170         return text;
1171 }
1172
1173
1174 LyXText const * BufferView::getLyXText() const
1175 {
1176         LyXText const * text = cursor_.innerText();
1177         BOOST_ASSERT(text);
1178         return text;
1179 }
1180
1181
1182 int BufferView::workHeight() const
1183 {
1184         return height_;
1185 }
1186
1187
1188 void BufferView::setCursor(DocIterator const & dit)
1189 {
1190         size_t const n = dit.depth();
1191         for (size_t i = 0; i < n; ++i)
1192                 dit[i].inset().edit(cursor_, true);
1193
1194         cursor_.setCursor(dit);
1195         cursor_.selection() = false;
1196 }
1197
1198
1199 void BufferView::mouseSetCursor(LCursor & cur)
1200 {
1201         BOOST_ASSERT(&cur.bv() == this);
1202
1203         // Has the cursor just left the inset?
1204         bool badcursor = false;
1205         if (&cursor_.inset() != &cur.inset())
1206                 badcursor = cursor_.inset().notifyCursorLeaves(cursor_);
1207
1208         // do the dEPM magic if needed
1209         // FIXME: move this to InsetText::notifyCursorLeaves?
1210         if (!badcursor && cursor_.inTexted())
1211                 cursor_.text()->deleteEmptyParagraphMechanism(cur, cursor_);
1212
1213         cursor_ = cur;
1214         cursor_.clearSelection();
1215         cursor_.setTargetX();
1216         finishUndo();
1217
1218 }
1219
1220
1221 void BufferView::putSelectionAt(DocIterator const & cur,
1222                                 int length, bool backwards)
1223 {
1224         cursor_.clearSelection();
1225
1226         setCursor(cur);
1227
1228         if (length) {
1229                 if (backwards) {
1230                         cursor_.pos() += length;
1231                         cursor_.setSelection(cursor_, -length);
1232                 } else
1233                         cursor_.setSelection(cursor_, length);
1234         }
1235 }
1236
1237
1238 LCursor & BufferView::cursor()
1239 {
1240         return cursor_;
1241 }
1242
1243
1244 LCursor const & BufferView::cursor() const
1245 {
1246         return cursor_;
1247 }
1248
1249
1250 lyx::pit_type BufferView::anchor_ref() const
1251 {
1252         return anchor_ref_;
1253 }
1254
1255
1256 ViewMetricsInfo const & BufferView::viewMetricsInfo()
1257 {
1258         return metrics_info_;
1259 }
1260
1261
1262 void BufferView::updateMetrics(bool singlepar)
1263 {
1264         // FIXME (Abdel 19/10/2006):
1265         // There's something fishy in tabular. The coord_cache_ is not
1266         // correctly reconstructed when a character is trying to be inserted.
1267         // Not clearing out the coord_cache_ fixes the crash but I don't know
1268         // what side effect this could have on other insets.
1269         //
1270         // Remove old position cache
1271         // coord_cache_.clear();
1272
1273         LyXText & buftext = buffer_->text();
1274         lyx::pit_type size = int(buftext.paragraphs().size());
1275
1276         if (anchor_ref_ > int(buftext.paragraphs().size() - 1)) {
1277                 anchor_ref_ = int(buftext.paragraphs().size() - 1);
1278                 offset_ref_ = 0;
1279         }
1280
1281         lyx::pit_type const pit = anchor_ref_;
1282         int pit1 = pit;
1283         int pit2 = pit;
1284         size_t const npit = buftext.paragraphs().size();
1285
1286         // Rebreak anchor paragraph. In Single Paragraph mode, rebreak only
1287         // the (main text, not inset!) paragraph containing the cursor.
1288         // (if this paragraph contains insets etc., rebreaking will
1289         // recursively descend)
1290         if (!singlepar || pit == cursor_.bottom().pit())
1291                 buftext.redoParagraph(pit);
1292         int y0 = buftext.getPar(pit).ascent() - offset_ref_;
1293
1294         // Redo paragraphs above anchor if necessary; again, in Single Par
1295         // mode, only if we encounter the (main text) one having the cursor.
1296         int y1 = y0;
1297         while (y1 > 0 && pit1 > 0) {
1298                 y1 -= buftext.getPar(pit1).ascent();
1299                 --pit1;
1300                 if (!singlepar || pit1 == cursor_.bottom().pit())
1301                         buftext.redoParagraph(pit1);
1302                 y1 -= buftext.getPar(pit1).descent();
1303         }
1304
1305
1306         // Take care of ascent of first line
1307         y1 -= buftext.getPar(pit1).ascent();
1308
1309         // Normalize anchor for next time
1310         anchor_ref_ = pit1;
1311         offset_ref_ = -y1;
1312
1313         // Grey at the beginning is ugly
1314         if (pit1 == 0 && y1 > 0) {
1315                 y0 -= y1;
1316                 y1 = 0;
1317                 anchor_ref_ = 0;
1318         }
1319
1320         // Redo paragraphs below the anchor if necessary. Single par mode:
1321         // only the one containing the cursor if encountered.
1322         int y2 = y0;
1323         while (y2 < height_ && pit2 < int(npit) - 1) {
1324                 y2 += buftext.getPar(pit2).descent();
1325                 ++pit2;
1326                 if (!singlepar || pit2 == cursor_.bottom().pit())
1327                         buftext.redoParagraph(pit2);
1328                 y2 += buftext.getPar(pit2).ascent();
1329         }
1330
1331         // Take care of descent of last line
1332         y2 += buftext.getPar(pit2).descent();
1333
1334         // The coordinates of all these paragraphs are correct, cache them
1335         int y = y1;
1336         CoordCache::InnerParPosCache & parPos = coord_cache_.parPos()[&buftext];
1337         for (lyx::pit_type pit = pit1; pit <= pit2; ++pit) {
1338                 Paragraph const & par = buftext.getPar(pit);
1339                 y += par.ascent();
1340                 parPos[pit] = Point(0, y);
1341                 if (singlepar && pit == cursor_.bottom().pit()) {
1342                         // In Single Paragraph mode, collect here the
1343                         // y1 and y2 of the (one) paragraph the cursor is in
1344                         y1 = y - par.ascent();
1345                         y2 = y + par.descent();
1346                 }
1347                 y += par.descent();
1348         }
1349
1350         if (singlepar) {
1351                 // collect cursor paragraph iter bounds
1352                 pit1 = cursor_.bottom().pit();
1353                 pit2 = cursor_.bottom().pit();
1354         }
1355
1356         lyxerr[Debug::DEBUG]
1357                 << BOOST_CURRENT_FUNCTION
1358                 << " y1: " << y1
1359                 << " y2: " << y2
1360                 << " pit1: " << pit1
1361                 << " pit2: " << pit2
1362                 << " npit: " << npit
1363                 << " singlepar: " << singlepar
1364                 << "size: " << size
1365                 << endl;
1366
1367         metrics_info_ = ViewMetricsInfo(pit1, pit2, y1, y2, singlepar, size);
1368 }
1369
1370
1371 void BufferView::menuInsertLyXFile(string const & filenm)
1372 {
1373         BOOST_ASSERT(cursor_.inTexted());
1374         string filename = filenm;
1375
1376         if (filename.empty()) {
1377                 // Launch a file browser
1378                 // FIXME UNICODE
1379                 string initpath = lyxrc.document_path;
1380
1381                 if (buffer_) {
1382                         string const trypath = buffer_->filePath();
1383                         // If directory is writeable, use this as default.
1384                         if (isDirWriteable(trypath))
1385                                 initpath = trypath;
1386                 }
1387
1388                 // FIXME UNICODE
1389                 FileDialog fileDlg(_("Select LyX document to insert"),
1390                         LFUN_FILE_INSERT,
1391                         make_pair(_("Documents|#o#O"), lyx::from_utf8(lyxrc.document_path)),
1392                         make_pair(_("Examples|#E#e"), lyx::from_utf8(addPath(package().system_support(), "examples"))));
1393
1394                 FileDialog::Result result =
1395                         fileDlg.open(lyx::from_utf8(initpath),
1396                                      FileFilterList(_("LyX Documents (*.lyx)")),
1397                                      docstring());
1398
1399                 if (result.first == FileDialog::Later)
1400                         return;
1401
1402                 // FIXME UNICODE
1403                 filename = lyx::to_utf8(result.second);
1404
1405                 // check selected filename
1406                 if (filename.empty()) {
1407                         // emit message signal.
1408                         message(_("Canceled."));
1409                         return;
1410                 }
1411         }
1412
1413         // Get absolute path of file and add ".lyx"
1414         // to the filename if necessary
1415         filename = fileSearch(string(), filename, "lyx");
1416
1417         docstring const disp_fn = makeDisplayPath(filename);
1418         // emit message signal.
1419         message(bformat(_("Inserting document %1$s..."), disp_fn));
1420
1421         docstring res;
1422         Buffer buf("", false);
1423         if (::loadLyXFile(&buf, makeAbsPath(filename))) {
1424                 ErrorList & el = buffer_->errorList("Parse");
1425                 // Copy the inserted document error list into the current buffer one.
1426                 el = buf.errorList("Parse");
1427                 lyx::cap::pasteParagraphList(cursor_, buf.paragraphs(),
1428                                              buf.params().textclass, el);
1429                 res = _("Document %1$s inserted.");
1430         } else
1431                 res = _("Could not insert document %1$s");
1432
1433         // emit message signal.
1434         message(bformat(res, disp_fn));
1435         buffer_->errors("Parse");
1436         resize();
1437 }