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 "bufferview_funcs.h"
  24 #include "coordcache.h"
  25 #include "CutAndPaste.h"
  26 #include "debug.h"
  27 #include "dispatchresult.h"
  28 #include "errorlist.h"
  29 #include "factory.h"
  30 #include "FloatList.h"
  31 #include "funcrequest.h"
  32 #include "FuncStatus.h"
  33 #include "gettext.h"
  34 #include "intl.h"
  35 #include "insetiterator.h"
  36 #include "language.h"
  37 #include "LaTeXFeatures.h"
  38 #include "lyx_cb.h" // added for Dispatch functions
  39 #include "lyx_main.h"
  40 #include "lyxfind.h"
  41 #include "lyxfunc.h"
  42 #include "lyxlayout.h"
  43 #include "lyxtext.h"
  44 #include "lyxtextclass.h"
  45 #include "lyxrc.h"
  46 #include "session.h"
  47 #include "paragraph.h"
  48 #include "paragraph_funcs.h"
  49 #include "ParagraphParameters.h"
  50 #include "pariterator.h"
  51 #include "texrow.h"
  52 #include "toc.h"
  53 #include "undo.h"
  54 #include "vspace.h"
  55 #include "WordLangTuple.h"
  56 #include "metricsinfo.h"
  57
  58 #include "insets/insetbibtex.h"
  59 #include "insets/insetcommand.h" // ChangeRefs
  60 #include "insets/insetref.h"
  61 #include "insets/insettext.h"
  62
  63 #include "frontends/Alert.h"
  64 #include "frontends/FileDialog.h"
  65 #include "frontends/FontMetrics.h"
  66
  67 #include "graphics/Previews.h"
  68
  69 #include "support/convert.h"
  70 #include "support/filefilterlist.h"
  71 #include "support/filetools.h"
  72 #include "support/package.h"
  73 #include "support/types.h"
  74
  75 #include <boost/bind.hpp>
  76 #include <boost/current_function.hpp>
  77
  78 #include <functional>
  79 #include <vector>
  80
  81
  82 namespace lyx {
  83
  84 using support::addPath;
  85 using support::bformat;
  86 using support::FileFilterList;
  87 using support::FileName;
  88 using support::fileSearch;
  89 using support::isDirWriteable;
  90 using support::isFileReadable;
  91 using support::makeDisplayPath;
  92 using support::package;
  93
  94 using std::distance;
  95 using std::endl;
  96 using std::istringstream;
  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 = frontend::Alert;
 105
 106 namespace {
 107
 108 /// Return an inset of this class if it exists at the current cursor position
 109 template <class T>
 110 T * getInsetByCode(LCursor & cur, InsetBase::Code code)
 111 {
 112         T * inset = 0;
 113         DocIterator it = cur;
 114         if (it.nextInset() &&
 115             it.nextInset()->lyxCode() == code) {
 116                 inset = static_cast<T*>(it.nextInset());
 117         }
 118         return inset;
 119 }
 120
 121 } // anon namespace
 122
 123
 124 BufferView::BufferView()
 125         : width_(0), height_(0), buffer_(0), wh_(0),
 126           cursor_(*this),
 127           multiparsel_cache_(false), anchor_ref_(0), offset_ref_(0),
 128           intl_(new Intl), last_inset_(0)
 129 {
 130         xsel_cache_.set = false;
 131         intl_->initKeyMapper(lyxrc.use_kbmap);
 132 }
 133
 134
 135 BufferView::~BufferView()
 136 {
 137 }
 138
 139
 140 Buffer * BufferView::buffer() const
 141 {
 142         return buffer_;
 143 }
 144
 145
 146 void BufferView::setBuffer(Buffer * b)
 147 {
 148         lyxerr[Debug::INFO] << BOOST_CURRENT_FUNCTION
 149                             << "[ b = " << b << "]" << endl;
 150
 151         if (buffer_) {
 152                 // Save the actual cursor position and anchor inside the
 153                 // buffer so that it can be restored in case we rechange
 154                 // to this buffer later on.
 155                 buffer_->saveCursor(cursor_.selectionBegin(),
 156                                     cursor_.selectionEnd());
 157                 // current buffer is going to be switched-off, save cursor pos
 158                 LyX::ref().session().lastFilePos().save(FileName(buffer_->fileName()),
 159                         boost::tie(cursor_.pit(), cursor_.pos()) );
 160         }
 161
 162         // If we're quitting lyx, don't bother updating stuff
 163         if (quitting) {
 164                 buffer_ = 0;
 165                 return;
 166         }
 167
 168         // If we are closing current buffer, switch to the first in
 169         // buffer list.
 170         if (!b) {
 171                 lyxerr[Debug::INFO] << BOOST_CURRENT_FUNCTION
 172                                     << " No Buffer!" << endl;
 173                 // We are closing the buffer, use the first buffer as current
 174                 buffer_ = theBufferList().first();
 175         } else {
 176                 // Set current buffer
 177                 buffer_ = b;
 178         }
 179
 180         // Reset old cursor
 181         cursor_ = LCursor(*this);
 182         anchor_ref_ = 0;
 183         offset_ref_ = 0;
 184
 185         if (buffer_) {
 186                 lyxerr[Debug::INFO] << BOOST_CURRENT_FUNCTION
 187                                     << "Buffer addr: " << buffer_ << endl;
 188                 cursor_.push(buffer_->inset());
 189                 cursor_.resetAnchor();
 190                 updateLabels(*buffer_);
 191                 buffer_->text().setCurrentFont(cursor_);
 192                 if (buffer_->getCursor().size() > 0 &&
 193                     buffer_->getAnchor().size() > 0)
 194                 {
 195                         cursor_.setCursor(buffer_->getAnchor().asDocIterator(&(buffer_->inset())));
 196                         cursor_.resetAnchor();
 197                         cursor_.setCursor(buffer_->getCursor().asDocIterator(&(buffer_->inset())));
 198                         cursor_.setSelection();
 199                 }
 200         }
 201
 202         if (buffer_)
 203                 updateMetrics(false);
 204
 205         if (buffer_ && graphics::Previews::status() != LyXRC::PREVIEW_OFF)
 206                 graphics::Previews::get().generateBufferPreviews(*buffer_);
 207 }
 208
 209
 210 bool BufferView::loadLyXFile(FileName const & filename, bool tolastfiles)
 211 {
 212         // File already open?
 213         if (theBufferList().exists(filename.absFilename())) {
 214                 docstring const file = makeDisplayPath(filename.absFilename(), 20);
 215                 docstring text = bformat(_("The document %1$s is already "
 216                                                      "loaded.\n\nDo you want to revert "
 217                                                      "to the saved version?"), file);
 218                 int const ret = Alert::prompt(_("Revert to saved document?"),
 219                         text, 0, 1,  _("&Revert"), _("&Switch to document"));
 220
 221                 if (ret != 0) {
 222                         setBuffer(theBufferList().getBuffer(filename.absFilename()));
 223                         return true;
 224                 }
 225                 // FIXME: should be LFUN_REVERT
 226                 if (!theBufferList().close(theBufferList().getBuffer(filename.absFilename()), false))
 227                         return false;
 228                 // Fall through to new load. (Asger)
 229                 buffer_ = 0;
 230         }
 231
 232         Buffer * b = 0;
 233
 234         if (isFileReadable(filename)) {
 235                 b = theBufferList().newBuffer(filename.absFilename());
 236                 if (!lyx::loadLyXFile(b, filename)) {
 237                         theBufferList().release(b);
 238                         return false;
 239                 }
 240         } else {
 241                 docstring text = bformat(_("The document %1$s does not yet "
 242                                                      "exist.\n\nDo you want to create "
 243                                                      "a new document?"), from_utf8(filename.absFilename()));
 244                 int const ret = Alert::prompt(_("Create new document?"),
 245                          text, 0, 1, _("&Create"), _("Cancel"));
 246
 247                 if (ret == 0) {
 248                         b = newFile(filename.absFilename(), string(), true);
 249                         if (!b)
 250                                 return false;
 251                 } else
 252                         return false;
 253         }
 254
 255         setBuffer(b);
 256         // Send the "errors" signal in case of parsing errors
 257         b->errors("Parse");
 258
 259         // scroll to the position when the file was last closed
 260         if (lyxrc.use_lastfilepos) {
 261                 pit_type pit;
 262                 pos_type pos;
 263                 boost::tie(pit, pos) = LyX::ref().session().lastFilePos().load(filename);
 264                 // I am not sure how to separate the following part to a function
 265                 // so I will leave this to Lars.
 266                 //
 267                 // check pit since the document may be externally changed.
 268                 if ( static_cast<size_t>(pit) < b->paragraphs().size() ) {
 269                         ParIterator it = b->par_iterator_begin();
 270                         ParIterator const end = b->par_iterator_end();
 271                         for (; it != end; ++it)
 272                                 if (it.pit() == pit) {
 273                                         // restored pos may be bigger than it->size
 274                                         setCursor(makeDocIterator(it, min(pos, it->size())));
 275                                         // No need to update the metrics if fitCursor returns false.
 276                                         if (fitCursor())
 277                                                 updateMetrics(false);
 278                                         break;
 279                                 }
 280                 }
 281         }
 282
 283         if (tolastfiles)
 284                 LyX::ref().session().lastFiles().add(FileName(b->fileName()));
 285
 286         return true;
 287 }
 288
 289
 290 void BufferView::reload()
 291 {
 292         if (theBufferList().close(buffer_, false))
 293                 loadLyXFile(FileName(buffer_->fileName()));
 294 }
 295
 296
 297 void BufferView::resize()
 298 {
 299         if (!buffer_)
 300                 return;
 301
 302         lyxerr[Debug::DEBUG] << BOOST_CURRENT_FUNCTION << endl;
 303
 304         updateMetrics(false);
 305         switchKeyMap();
 306 }
 307
 308
 309 bool BufferView::fitCursor()
 310 {
 311         if (bv_funcs::status(this, cursor_) == bv_funcs::CUR_INSIDE) {
 312                 frontend::FontMetrics const & fm =
 313                         theFontMetrics(cursor_.getFont());
 314                 int const asc = fm.maxAscent();
 315                 int const des = fm.maxDescent();
 316                 Point const p = bv_funcs::getPos(*this, cursor_, cursor_.boundary());
 317                 if (p.y_ - asc >= 0 && p.y_ + des < height_)
 318                         return false;
 319         }
 320         center();
 321         return true;
 322 }
 323
 324
 325 bool BufferView::multiParSel()
 326 {
 327         if (!cursor_.selection())
 328                 return false;
 329         bool ret = multiparsel_cache_;
 330         multiparsel_cache_ = cursor_.selBegin().pit() != cursor_.selEnd().pit();
 331         // Either this, or previous selection spans paragraphs
 332         return ret || multiparsel_cache_;
 333 }
 334
 335
 336 bool BufferView::update(Update::flags flags)
 337 {
 338         // This is close to a hot-path.
 339         if (lyxerr.debugging(Debug::DEBUG)) {
 340                 lyxerr[Debug::DEBUG]
 341                         << BOOST_CURRENT_FUNCTION
 342                         << "[fitcursor = " << (flags & Update::FitCursor)
 343                         << ", forceupdate = " << (flags & Update::Force)
 344                         << ", singlepar = " << (flags & Update::SinglePar)
 345                         << "]  buffer: " << buffer_ << endl;
 346         }
 347
 348         // Check needed to survive LyX startup
 349         if (!buffer_)
 350                 return false;
 351
 352         if (lyxerr.debugging(Debug::WORKAREA)) {
 353                 lyxerr[Debug::WORKAREA] << "BufferView::update" << std::endl;
 354         }
 355
 356         // Update macro store
 357         buffer_->buildMacros();
 358
 359         // Now do the first drawing step if needed. This consists on updating
 360         // the CoordCache in updateMetrics().
 361         // The second drawing step is done in WorkArea::redraw() if needed.
 362
 363         // Case when no explicit update is requested.
 364         if (!flags) {
 365                 // no need to redraw anything.
 366                 return false;
 367         }
 368
 369         if (flags == Update::FitCursor) {
 370                 bool const fit_cursor = fitCursor();
 371                 if (fit_cursor)
 372                         updateMetrics(false);
 373                 // tell the frontend to update the screen if needed.
 374                 return fit_cursor;
 375         }
 376
 377         bool full_metrics = flags & Update::Force;
 378         if (flags & Update::MultiParSel)
 379                 full_metrics |= multiParSel();
 380
 381         bool const single_par = !full_metrics;
 382         updateMetrics(single_par);
 383
 384         if (flags & Update::FitCursor && fitCursor())
 385                 updateMetrics(false);
 386
 387         // tell the frontend to update the screen.
 388         return true;
 389 }
 390
 391
 392 void BufferView::updateScrollbar()
 393 {
 394         if (!buffer_) {
 395                 lyxerr[Debug::DEBUG] << BOOST_CURRENT_FUNCTION
 396                                      << " no text in updateScrollbar" << endl;
 397                 scrollbarParameters_.reset();
 398                 return;
 399         }
 400
 401         LyXText & t = buffer_->text();
 402         TextMetrics & tm = text_metrics_[&t];
 403
 404         int const parsize = int(t.paragraphs().size() - 1);
 405         if (anchor_ref_ >  parsize)  {
 406                 anchor_ref_ = parsize;
 407                 offset_ref_ = 0;
 408         }
 409
 410         if (lyxerr.debugging(Debug::GUI)) {
 411                 lyxerr[Debug::GUI]
 412                         << BOOST_CURRENT_FUNCTION
 413                         << " Updating scrollbar: height: " << t.paragraphs().size()
 414                         << " curr par: " << cursor_.bottom().pit()
 415                         << " default height " << defaultRowHeight() << endl;
 416         }
 417
 418         // It would be better to fix the scrollbar to understand
 419         // values in [0..1] and divide everything by wh
 420
 421         // estimated average paragraph height:
 422         if (wh_ == 0)
 423                 wh_ = height_ / 4;
 424
 425         int h = tm.parMetrics(anchor_ref_).height();
 426
 427         // Normalize anchor/offset (MV):
 428         while (offset_ref_ > h && anchor_ref_ < parsize) {
 429                 anchor_ref_++;
 430                 offset_ref_ -= h;
 431                 h = tm.parMetrics(anchor_ref_).height();
 432         }
 433         // Look at paragraph heights on-screen
 434         int sumh = 0;
 435         int nh = 0;
 436         for (pit_type pit = anchor_ref_; pit <= parsize; ++pit) {
 437                 if (sumh > height_)
 438                         break;
 439                 int const h2 = tm.parMetrics(pit).height();
 440                 sumh += h2;
 441                 nh++;
 442         }
 443
 444         BOOST_ASSERT(nh);
 445         int const hav = sumh / nh;
 446         // More realistic average paragraph height
 447         if (hav > wh_)
 448                 wh_ = hav;
 449
 450         BOOST_ASSERT(h);
 451         scrollbarParameters_.height = (parsize + 1) * wh_;
 452         scrollbarParameters_.position = anchor_ref_ * wh_ + int(offset_ref_ * wh_ / float(h));
 453         scrollbarParameters_.lineScrollHeight = int(wh_ * defaultRowHeight() / float(h));
 454 }
 455
 456
 457 ScrollbarParameters const & BufferView::scrollbarParameters() const
 458 {
 459         return scrollbarParameters_;
 460 }
 461
 462
 463 void BufferView::scrollDocView(int value)
 464 {
 465         lyxerr[Debug::GUI] << BOOST_CURRENT_FUNCTION
 466                            << "[ value = " << value << "]" << endl;
 467
 468         if (!buffer_)
 469                 return;
 470
 471         LyXText & t = buffer_->text();
 472         TextMetrics & tm = text_metrics_[&t];
 473
 474         float const bar = value / float(wh_ * t.paragraphs().size());
 475
 476         anchor_ref_ = int(bar * t.paragraphs().size());
 477         if (anchor_ref_ >  int(t.paragraphs().size()) - 1)
 478                 anchor_ref_ = int(t.paragraphs().size()) - 1;
 479
 480         tm.redoParagraph(anchor_ref_);
 481         int const h = tm.parMetrics(anchor_ref_).height();
 482         offset_ref_ = int((bar * t.paragraphs().size() - anchor_ref_) * h);
 483         updateMetrics(false);
 484 }
 485
 486
 487 void BufferView::setCursorFromScrollbar()
 488 {
 489         LyXText & t = buffer_->text();
 490
 491         int const height = 2 * defaultRowHeight();
 492         int const first = height;
 493         int const last = height_ - height;
 494         LCursor & cur = cursor_;
 495
 496         bv_funcs::CurStatus st = bv_funcs::status(this, cur);
 497
 498         switch (st) {
 499         case bv_funcs::CUR_ABOVE:
 500                 t.setCursorFromCoordinates(cur, 0, first);
 501                 cur.clearSelection();
 502                 break;
 503         case bv_funcs::CUR_BELOW:
 504                 t.setCursorFromCoordinates(cur, 0, last);
 505                 cur.clearSelection();
 506                 break;
 507         case bv_funcs::CUR_INSIDE:
 508                 int const y = bv_funcs::getPos(*this, cur, cur.boundary()).y_;
 509                 int const newy = min(last, max(y, first));
 510                 if (y != newy) {
 511                         cur.reset(buffer_->inset());
 512                         t.setCursorFromCoordinates(cur, 0, newy);
 513                 }
 514         }
 515 }
 516
 517
 518 Change const BufferView::getCurrentChange() const
 519 {
 520         if (!cursor_.selection())
 521                 return Change(Change::UNCHANGED);
 522
 523         DocIterator dit = cursor_.selectionBegin();
 524         return dit.paragraph().lookupChange(dit.pos());
 525 }
 526
 527
 528 void BufferView::saveBookmark(bool persistent)
 529 {
 530         LyX::ref().session().bookmarks().save(
 531                 FileName(buffer_->fileName()),
 532                 cursor_.paragraph().id(),
 533                 cursor_.pos(),
 534                 persistent
 535         );
 536         if (persistent)
 537                 // emit message signal.
 538                 message(_("Save bookmark"));
 539 }
 540
 541
 542 void BufferView::moveToPosition(int par_id, pos_type par_pos)
 543 {
 544         cursor_.clearSelection();
 545
 546         ParIterator par = buffer_->getParFromID(par_id);
 547         if (par == buffer_->par_iterator_end())
 548                 return;
 549
 550         setCursor(makeDocIterator(par, min(par->size(), par_pos)));
 551 }
 552
 553
 554 void BufferView::switchKeyMap()
 555 {
 556         if (!lyxrc.rtl_support)
 557                 return;
 558
 559         if (getLyXText()->real_current_font.isRightToLeft()) {
 560                 if (intl_->keymap == Intl::PRIMARY)
 561                         intl_->keyMapSec();
 562         } else {
 563                 if (intl_->keymap == Intl::SECONDARY)
 564                         intl_->keyMapPrim();
 565         }
 566 }
 567
 568
 569 int BufferView::workWidth() const
 570 {
 571         return width_;
 572 }
 573
 574
 575 void BufferView::center()
 576 {
 577         CursorSlice & bot = cursor_.bottom();
 578         TextMetrics & tm = text_metrics_[bot.text()];
 579         pit_type const pit = bot.pit();
 580         tm.redoParagraph(pit);
 581         ParagraphMetrics const & pm = tm.parMetrics(pit);
 582         anchor_ref_ = pit;
 583         offset_ref_ = bv_funcs::coordOffset(*this, cursor_, cursor_.boundary()).y_
 584                 + pm.ascent() - height_ / 2;
 585 }
 586
 587
 588 FuncStatus BufferView::getStatus(FuncRequest const & cmd)
 589 {
 590         FuncStatus flag;
 591
 592         switch (cmd.action) {
 593
 594         case LFUN_UNDO:
 595                 flag.enabled(!buffer_->undostack().empty());
 596                 break;
 597         case LFUN_REDO:
 598                 flag.enabled(!buffer_->redostack().empty());
 599                 break;
 600         case LFUN_FILE_INSERT:
 601         case LFUN_FILE_INSERT_ASCII_PARA:
 602         case LFUN_FILE_INSERT_ASCII:
 603         case LFUN_BOOKMARK_SAVE:
 604                 // FIXME: Actually, these LFUNS should be moved to LyXText
 605                 flag.enabled(cursor_.inTexted());
 606                 break;
 607         case LFUN_FONT_STATE:
 608         case LFUN_LABEL_INSERT:
 609         case LFUN_PARAGRAPH_GOTO:
 610         // FIXME handle non-trivially
 611         case LFUN_OUTLINE_UP:
 612         case LFUN_OUTLINE_DOWN:
 613         case LFUN_OUTLINE_IN:
 614         case LFUN_OUTLINE_OUT:
 615         case LFUN_NOTE_NEXT:
 616         case LFUN_REFERENCE_NEXT:
 617         case LFUN_WORD_FIND:
 618         case LFUN_WORD_REPLACE:
 619         case LFUN_MARK_OFF:
 620         case LFUN_MARK_ON:
 621         case LFUN_MARK_TOGGLE:
 622         case LFUN_SCREEN_RECENTER:
 623         case LFUN_BIBTEX_DATABASE_ADD:
 624         case LFUN_BIBTEX_DATABASE_DEL:
 625         case LFUN_WORDS_COUNT:
 626         case LFUN_NEXT_INSET_TOGGLE:
 627                 flag.enabled(true);
 628                 break;
 629
 630         case LFUN_LABEL_GOTO: {
 631                 flag.enabled(!cmd.argument().empty()
 632                     || getInsetByCode<InsetRef>(cursor_, InsetBase::REF_CODE));
 633                 break;
 634         }
 635
 636         case LFUN_CHANGES_TRACK:
 637                 flag.enabled(true);
 638                 flag.setOnOff(buffer_->params().trackChanges);
 639                 break;
 640
 641         case LFUN_CHANGES_OUTPUT: {
 642                 OutputParams runparams;
 643                 LaTeXFeatures features(*buffer_, buffer_->params(), runparams);
 644                 flag.enabled(buffer_ && features.isAvailable("dvipost"));
 645                 flag.setOnOff(buffer_->params().outputChanges);
 646                 break;
 647         }
 648
 649         case LFUN_CHANGES_MERGE:
 650         case LFUN_CHANGE_NEXT:
 651         case LFUN_ALL_CHANGES_ACCEPT:
 652         case LFUN_ALL_CHANGES_REJECT:
 653                 // TODO: context-sensitive enabling of LFUNs
 654                 // In principle, these command should only be enabled if there
 655                 // is a change in the document. However, without proper
 656                 // optimizations, this will inevitably result in poor performance.
 657                 flag.enabled(buffer_);
 658                 break;
 659
 660         case LFUN_BUFFER_TOGGLE_COMPRESSION: {
 661                 flag.setOnOff(buffer_->params().compressed);
 662                 break;
 663         }
 664
 665         default:
 666                 flag.enabled(false);
 667         }
 668
 669         return flag;
 670 }
 671
 672
 673 bool BufferView::dispatch(FuncRequest const & cmd)
 674 {
 675         //lyxerr << BOOST_CURRENT_FUNCTION
 676         //       << [ cmd = " << cmd << "]" << endl;
 677
 678         // Make sure that the cached BufferView is correct.
 679         lyxerr[Debug::ACTION] << BOOST_CURRENT_FUNCTION
 680                 << " action[" << cmd.action << ']'
 681                 << " arg[" << to_utf8(cmd.argument()) << ']'
 682                 << " x[" << cmd.x << ']'
 683                 << " y[" << cmd.y << ']'
 684                 << " button[" << cmd.button() << ']'
 685                 << endl;
 686
 687         LCursor & cur = cursor_;
 688
 689         switch (cmd.action) {
 690
 691         case LFUN_UNDO:
 692                 if (buffer_) {
 693                         cur.message(_("Undo"));
 694                         cur.clearSelection();
 695                         if (!textUndo(*this))
 696                                 cur.message(_("No further undo information"));
 697                         update();
 698                         switchKeyMap();
 699                 }
 700                 break;
 701
 702         case LFUN_REDO:
 703                 if (buffer_) {
 704                         cur.message(_("Redo"));
 705                         cur.clearSelection();
 706                         if (!textRedo(*this))
 707                                 cur.message(_("No further redo information"));
 708                         update();
 709                         switchKeyMap();
 710                 }
 711                 break;
 712
 713         case LFUN_FILE_INSERT:
 714                 // FIXME UNICODE
 715                 menuInsertLyXFile(to_utf8(cmd.argument()));
 716                 break;
 717
 718         case LFUN_FILE_INSERT_ASCII_PARA:
 719                 // FIXME UNICODE
 720                 insertAsciiFile(this, to_utf8(cmd.argument()), true);
 721                 break;
 722
 723         case LFUN_FILE_INSERT_ASCII:
 724                 // FIXME UNICODE
 725                 insertAsciiFile(this, to_utf8(cmd.argument()), false);
 726                 break;
 727
 728         case LFUN_FONT_STATE:
 729                 cur.message(cur.currentState());
 730                 break;
 731
 732         case LFUN_BOOKMARK_SAVE:
 733                 saveBookmark(convert<unsigned int>(to_utf8(cmd.argument())));
 734                 break;
 735
 736         case LFUN_LABEL_GOTO: {
 737                 docstring label = cmd.argument();
 738                 if (label.empty()) {
 739                         InsetRef * inset =
 740                                 getInsetByCode<InsetRef>(cursor_,
 741                                                          InsetBase::REF_CODE);
 742                         if (inset) {
 743                                 label = inset->getParam("reference");
 744                                 // persistent=false: use temp_bookmark
 745                                 saveBookmark(false);
 746                         }
 747                 }
 748
 749                 if (!label.empty())
 750                         gotoLabel(label);
 751                 break;
 752         }
 753
 754         case LFUN_PARAGRAPH_GOTO: {
 755                 int const id = convert<int>(to_utf8(cmd.argument()));
 756                 int i = 0;
 757                 for (Buffer * b = buffer_; i == 0 || b != buffer_; b = theBufferList().next(b)) {
 758                         ParIterator par = b->getParFromID(id);
 759                         if (par == b->par_iterator_end()) {
 760                                 lyxerr[Debug::INFO]
 761                                         << "No matching paragraph found! ["
 762                                         << id << "]." << endl;
 763                         } else {
 764                                 lyxerr[Debug::INFO]
 765                                         << "Paragraph " << par->id()
 766                                         << " found in buffer `"
 767                                         << b->fileName() << "'." << endl;
 768
 769                                 if (b == buffer_) {
 770                                         // Set the cursor
 771                                         setCursor(makeDocIterator(par, 0));
 772                                         update();
 773                                         switchKeyMap();
 774                                 } else {
 775                                         // Switch to other buffer view and resend cmd
 776                                         theLyXFunc().dispatch(FuncRequest(
 777                                                 LFUN_BUFFER_SWITCH, b->fileName()));
 778                                         theLyXFunc().dispatch(cmd);
 779                                 }
 780                                 break;
 781                         }
 782                         ++i;
 783                 }
 784                 break;
 785         }
 786
 787         case LFUN_OUTLINE_UP:
 788                 toc::outline(toc::Up, cursor_);
 789                 cursor_.text()->setCursor(cursor_, cursor_.pit(), 0);
 790                 updateLabels(*buffer_);
 791                 break;
 792         case LFUN_OUTLINE_DOWN:
 793                 toc::outline(toc::Down, cursor_);
 794                 cursor_.text()->setCursor(cursor_, cursor_.pit(), 0);
 795                 updateLabels(*buffer_);
 796                 break;
 797         case LFUN_OUTLINE_IN:
 798                 toc::outline(toc::In, cursor_);
 799                 updateLabels(*buffer_);
 800                 break;
 801         case LFUN_OUTLINE_OUT:
 802                 toc::outline(toc::Out, cursor_);
 803                 updateLabels(*buffer_);
 804                 break;
 805
 806         case LFUN_NOTE_NEXT:
 807                 bv_funcs::gotoInset(this, InsetBase::NOTE_CODE, false);
 808                 break;
 809
 810         case LFUN_REFERENCE_NEXT: {
 811                 vector<InsetBase_code> tmp;
 812                 tmp.push_back(InsetBase::LABEL_CODE);
 813                 tmp.push_back(InsetBase::REF_CODE);
 814                 bv_funcs::gotoInset(this, tmp, true);
 815                 break;
 816         }
 817
 818         case LFUN_CHANGES_TRACK:
 819                 buffer_->params().trackChanges = !buffer_->params().trackChanges;
 820                 break;
 821
 822         case LFUN_CHANGES_OUTPUT: {
 823                 buffer_->params().outputChanges = !buffer_->params().outputChanges;
 824                 break;
 825         }
 826
 827         case LFUN_CHANGE_NEXT:
 828                 findNextChange(this);
 829                 break;
 830
 831         case LFUN_CHANGES_MERGE:
 832                 if (findNextChange(this))
 833                         showDialog("changes");
 834                 break;
 835
 836         case LFUN_ALL_CHANGES_ACCEPT: {
 837                 cursor_.reset(buffer_->inset());
 838 #ifdef WITH_WARNINGS
 839 #warning FIXME changes
 840 #endif
 841                 while (findNextChange(this))
 842                         getLyXText()->acceptChange(cursor_);
 843                 update();
 844                 break;
 845         }
 846
 847         case LFUN_ALL_CHANGES_REJECT: {
 848                 cursor_.reset(buffer_->inset());
 849 #ifdef WITH_WARNINGS
 850 #warning FIXME changes
 851 #endif
 852                 while (findNextChange(this))
 853                         getLyXText()->rejectChange(cursor_);
 854                 break;
 855         }
 856
 857         case LFUN_WORD_FIND:
 858                 find(this, cmd);
 859                 break;
 860
 861         case LFUN_WORD_REPLACE:
 862                 replace(this, cmd);
 863                 break;
 864
 865         case LFUN_MARK_OFF:
 866                 cur.clearSelection();
 867                 cur.resetAnchor();
 868                 cur.message(from_utf8(N_("Mark off")));
 869                 break;
 870
 871         case LFUN_MARK_ON:
 872                 cur.clearSelection();
 873                 cur.mark() = true;
 874                 cur.resetAnchor();
 875                 cur.message(from_utf8(N_("Mark on")));
 876                 break;
 877
 878         case LFUN_MARK_TOGGLE:
 879                 cur.clearSelection();
 880                 if (cur.mark()) {
 881                         cur.mark() = false;
 882                         cur.message(from_utf8(N_("Mark removed")));
 883                 } else {
 884                         cur.mark() = true;
 885                         cur.message(from_utf8(N_("Mark set")));
 886                 }
 887                 cur.resetAnchor();
 888                 break;
 889
 890         case LFUN_SCREEN_RECENTER:
 891                 center();
 892                 break;
 893
 894         case LFUN_BIBTEX_DATABASE_ADD: {
 895                 LCursor tmpcur = cursor_;
 896                 bv_funcs::findInset(tmpcur, InsetBase::BIBTEX_CODE, false);
 897                 InsetBibtex * inset = getInsetByCode<InsetBibtex>(tmpcur,
 898                                                 InsetBase::BIBTEX_CODE);
 899                 if (inset) {
 900                         if (inset->addDatabase(to_utf8(cmd.argument())))
 901                                 buffer_->updateBibfilesCache();
 902                 }
 903                 break;
 904         }
 905
 906         case LFUN_BIBTEX_DATABASE_DEL: {
 907                 LCursor tmpcur = cursor_;
 908                 bv_funcs::findInset(tmpcur, InsetBase::BIBTEX_CODE, false);
 909                 InsetBibtex * inset = getInsetByCode<InsetBibtex>(tmpcur,
 910                                                 InsetBase::BIBTEX_CODE);
 911                 if (inset) {
 912                         if (inset->delDatabase(to_utf8(cmd.argument())))
 913                                 buffer_->updateBibfilesCache();
 914                 }
 915                 break;
 916         }
 917
 918         case LFUN_WORDS_COUNT: {
 919                 DocIterator from, to;
 920                 if (cur.selection()) {
 921                         from = cur.selectionBegin();
 922                         to = cur.selectionEnd();
 923                 } else {
 924                         from = doc_iterator_begin(buffer_->inset());
 925                         to = doc_iterator_end(buffer_->inset());
 926                 }
 927                 int const count = countWords(from, to);
 928                 docstring message;
 929                 if (count != 1) {
 930                         if (cur.selection())
 931                                 message = bformat(_("%1$d words in selection."),
 932                                           count);
 933                                 else
 934                                         message = bformat(_("%1$d words in document."),
 935                                                           count);
 936                 }
 937                 else {
 938                         if (cur.selection())
 939                                 message = _("One word in selection.");
 940                         else
 941                                 message = _("One word in document.");
 942                 }
 943
 944                 Alert::information(_("Count words"), message);
 945         }
 946                 break;
 947
 948         case LFUN_BUFFER_TOGGLE_COMPRESSION:
 949                 // turn compression on/off
 950                 buffer_->params().compressed = !buffer_->params().compressed;
 951                 break;
 952
 953         case LFUN_NEXT_INSET_TOGGLE: {
 954                 // this is the real function we want to invoke
 955                 FuncRequest tmpcmd = FuncRequest(LFUN_INSET_TOGGLE, cmd.origin);
 956                 // if there is an inset at cursor, see whether it
 957                 // wants to toggle.
 958                 InsetBase * inset = cur.nextInset();
 959                 if (inset && inset->isActive()) {
 960                         LCursor tmpcur = cur;
 961                         tmpcur.pushLeft(*inset);
 962                         inset->dispatch(tmpcur, tmpcmd);
 963                         if (tmpcur.result().dispatched()) {
 964                                 cur.dispatched();
 965                         }
 966                 }
 967                 // if it did not work, try the underlying inset.
 968                 if (!cur.result().dispatched())
 969                         cur.dispatch(tmpcmd);
 970
 971                 if (cur.result().dispatched())
 972                         cur.clearSelection();
 973
 974                 break;
 975         }
 976
 977         default:
 978                 return false;
 979         }
 980
 981         return true;
 982 }
 983
 984
 985 docstring const BufferView::requestSelection()
 986 {
 987         if (!buffer_)
 988                 return docstring();
 989
 990         LCursor & cur = cursor_;
 991
 992         if (!cur.selection()) {
 993                 xsel_cache_.set = false;
 994                 return docstring();
 995         }
 996
 997         if (!xsel_cache_.set ||
 998             cur.top() != xsel_cache_.cursor ||
 999             cur.anchor_.top() != xsel_cache_.anchor)
1000         {
1001                 xsel_cache_.cursor = cur.top();
1002                 xsel_cache_.anchor = cur.anchor_.top();
1003                 xsel_cache_.set = cur.selection();
1004                 return cur.selectionAsString(false);
1005         }
1006         return docstring();
1007 }
1008
1009
1010 void BufferView::clearSelection()
1011 {
1012         if (buffer_) {
1013                 cursor_.clearSelection();
1014                 xsel_cache_.set = false;
1015         }
1016 }
1017
1018
1019 void BufferView::workAreaResize(int width, int height)
1020 {
1021         // A resize is triggered whenever a window gets focus,
1022         // because of the shared rows() of a buffer in multiple
1023         // buffer views.
1024
1025         // Update from work area
1026         width_ = width;
1027         height_ = height;
1028
1029         text_metrics_.clear();
1030
1031         if (buffer_)
1032                 resize();
1033 }
1034
1035
1036 bool BufferView::workAreaDispatch(FuncRequest const & cmd0)
1037 {
1038         //lyxerr << BOOST_CURRENT_FUNCTION << "[ cmd0 " << cmd0 << "]" << endl;
1039
1040         // This is only called for mouse related events including
1041         // LFUN_FILE_OPEN generated by drag-and-drop.
1042         FuncRequest cmd = cmd0;
1043
1044         // E.g. Qt mouse press when no buffer
1045         if (!buffer_)
1046                 return false;
1047
1048         LCursor cur(*this);
1049         cur.push(buffer_->inset());
1050         cur.selection() = cursor_.selection();
1051
1052         // Either the inset under the cursor or the
1053         // surrounding LyXText will handle this event.
1054
1055         // Build temporary cursor.
1056         cmd.y = min(max(cmd.y, -1), height_);
1057         InsetBase * inset = buffer_->text().editXY(cur, cmd.x, cmd.y);
1058
1059         //lyxerr << BOOST_CURRENT_FUNCTION
1060         //       << " * hit inset at tip: " << inset << endl;
1061         //lyxerr << BOOST_CURRENT_FUNCTION
1062         //       << " * created temp cursor:" << cur << endl;
1063
1064         // NOTE: editXY returns the top level inset of nested insets. If you happen
1065         // to move from a text (inset=0) to a text inside an inset (e.g. an opened
1066         // footnote inset, again inset=0), that inset will not be redrawn.
1067         if (cmd.action == LFUN_MOUSE_MOTION && cmd.button() == mouse_button::none) {
1068                 bool need_redraw = false;
1069
1070                 if (inset != last_inset_) {
1071                         if (last_inset_)
1072                                 need_redraw |= last_inset_->setMouseHover(false);
1073                         if (inset)
1074                                 need_redraw |= inset->setMouseHover(true);
1075                         last_inset_ = inset;
1076                 }
1077
1078                 // if last metrics update was in singlepar mode, WorkArea::redraw() will
1079                 // not expose the button for redraw. We adjust here the metrics dimension
1080                 // to enable a full redraw.
1081                 // FIXME: It is possible to redraw only the area around the button!
1082                 if (need_redraw && metrics_info_.singlepar) {
1083                         // FIXME: It should be possible to redraw only the area around
1084                         // the button by doing this:
1085                         //
1086                         //metrics_info_.singlepar = false;
1087                         //metrics_info_.y1 = ymin of button;
1088                         //metrics_info_.y2 = ymax of button;
1089                         //
1090                         // Unfortunately, rowpainter.C:paintText() does not distinguish
1091                         // between background updates and text updates. So we use the hammer
1092                         // solution for now. We could also avoid the updateMetrics() below
1093                         // by using the first and last pit of the CoordCache. Have a look
1094                         // at LyXText::getPitNearY() to see what I mean.
1095                         //
1096                         //metrics_info_.pit1 = first pit of CoordCache;
1097                         //metrics_info_.pit2 = last pit of CoordCache;
1098                         //metrics_info_.singlepar = false;
1099                         //metrics_info_.y1 = 0;
1100                         //metrics_info_.y2 = height_;
1101                         //
1102                         updateMetrics(false);
1103                 }
1104
1105                 // This event (moving without mouse click) is not passed further.
1106                 // This should be changed if it is further utilized.
1107                 return need_redraw;
1108         }
1109
1110         // Put anchor at the same position.
1111         cur.resetAnchor();
1112
1113         // Try to dispatch to an non-editable inset near this position
1114         // via the temp cursor. If the inset wishes to change the real
1115         // cursor it has to do so explicitly by using
1116         //  cur.bv().cursor() = cur;  (or similar)
1117         if (inset) {
1118                 inset->dispatch(cur, cmd);
1119         }
1120
1121         // Now dispatch to the temporary cursor. If the real cursor should
1122         // be modified, the inset's dispatch has to do so explicitly.
1123         if (!cur.result().dispatched())
1124                 cur.dispatch(cmd);
1125
1126         // Redraw if requested and necessary.
1127         if (cur.result().dispatched() && cur.result().update())
1128                 return update(cur.result().update());
1129
1130         return false;
1131 }
1132
1133
1134 void BufferView::scroll(int /*lines*/)
1135 {
1136 //      if (!buffer_)
1137 //              return;
1138 //
1139 //      LyXText const * t = &buffer_->text();
1140 //      int const line_height = defaultRowHeight();
1141 //
1142 //      // The new absolute coordinate
1143 //      int new_top_y = top_y() + lines * line_height;
1144 //
1145 //      // Restrict to a valid value
1146 //      new_top_y = std::min(t->height() - 4 * line_height, new_top_y);
1147 //      new_top_y = std::max(0, new_top_y);
1148 //
1149 //      scrollDocView(new_top_y);
1150 //
1151 //      // Update the scrollbar.
1152 //      workArea_->setScrollbarParams(t->height(), top_y(), defaultRowHeight());}
1153 }
1154
1155
1156 void BufferView::setCursorFromRow(int row)
1157 {
1158         int tmpid = -1;
1159         int tmppos = -1;
1160
1161         buffer_->texrow().getIdFromRow(row, tmpid, tmppos);
1162
1163         if (tmpid == -1)
1164                 buffer_->text().setCursor(cursor_, 0, 0);
1165         else
1166                 buffer_->text().setCursor(cursor_, buffer_->getParFromID(tmpid).pit(), tmppos);
1167 }
1168
1169
1170 void BufferView::gotoLabel(docstring const & label)
1171 {
1172         for (InsetIterator it = inset_iterator_begin(buffer_->inset()); it; ++it) {
1173                 vector<docstring> labels;
1174                 it->getLabelList(*buffer_, labels);
1175                 if (std::find(labels.begin(), labels.end(), label) != labels.end()) {
1176                         setCursor(it);
1177                         update();
1178                         return;
1179                 }
1180         }
1181 }
1182
1183
1184 LyXText * BufferView::getLyXText()
1185 {
1186         LyXText * text = cursor_.innerText();
1187         BOOST_ASSERT(text);
1188         return text;
1189 }
1190
1191
1192 LyXText const * BufferView::getLyXText() const
1193 {
1194         LyXText const * text = cursor_.innerText();
1195         BOOST_ASSERT(text);
1196         return text;
1197 }
1198
1199
1200 TextMetrics const & BufferView::textMetrics(LyXText const * t) const
1201 {
1202         return const_cast<BufferView *>(this)->textMetrics(t);
1203 }
1204
1205
1206 TextMetrics & BufferView::textMetrics(LyXText const * t)
1207 {
1208         TextMetricsCache::iterator tmc_it  = text_metrics_.find(t);
1209         if (tmc_it == text_metrics_.end()) {
1210                 tmc_it = text_metrics_.insert(
1211                         make_pair(t, TextMetrics(this, const_cast<LyXText *>(t)))).first;
1212         }
1213         return tmc_it->second;
1214 }
1215
1216
1217 ParagraphMetrics const & BufferView::parMetrics(LyXText const * t,
1218                 pit_type pit) const
1219 {
1220         return textMetrics(t).parMetrics(pit);
1221 }
1222
1223
1224 int BufferView::workHeight() const
1225 {
1226         return height_;
1227 }
1228
1229
1230 void BufferView::setCursor(DocIterator const & dit)
1231 {
1232         size_t const n = dit.depth();
1233         for (size_t i = 0; i < n; ++i)
1234                 dit[i].inset().edit(cursor_, true);
1235
1236         cursor_.setCursor(dit);
1237         cursor_.selection() = false;
1238 }
1239
1240
1241 bool BufferView::checkDepm(LCursor & cur, LCursor & old)
1242 {
1243         // Would be wrong to delete anything if we have a selection.
1244         if (cur.selection())
1245                 return false;
1246
1247         bool need_anchor_change = false;
1248         bool changed = cursor_.text()->deleteEmptyParagraphMechanism(cur, old,
1249                 need_anchor_change);
1250
1251         if (need_anchor_change)
1252                 cur.resetAnchor();
1253
1254         if (!changed)
1255                 return false;
1256
1257         updateMetrics(false);
1258         buffer_->changed();
1259         return true;
1260 }
1261
1262
1263 bool BufferView::mouseSetCursor(LCursor & cur)
1264 {
1265         BOOST_ASSERT(&cur.bv() == this);
1266
1267         // Has the cursor just left the inset?
1268         bool badcursor = false;
1269         if (&cursor_.inset() != &cur.inset())
1270                 badcursor = cursor_.inset().notifyCursorLeaves(cursor_);
1271
1272         // do the dEPM magic if needed
1273         // FIXME: move this to InsetText::notifyCursorLeaves?
1274         bool update = false;
1275         if (!badcursor && cursor_.inTexted())
1276                 checkDepm(cur, cursor_);
1277
1278         cursor_ = cur;
1279         cursor_.clearSelection();
1280         cursor_.setTargetX();
1281         finishUndo();
1282         return update;
1283 }
1284
1285
1286 void BufferView::putSelectionAt(DocIterator const & cur,
1287                                 int length, bool backwards)
1288 {
1289         cursor_.clearSelection();
1290
1291         setCursor(cur);
1292
1293         if (length) {
1294                 if (backwards) {
1295                         cursor_.pos() += length;
1296                         cursor_.setSelection(cursor_, -length);
1297                 } else
1298                         cursor_.setSelection(cursor_, length);
1299         }
1300 }
1301
1302
1303 LCursor & BufferView::cursor()
1304 {
1305         return cursor_;
1306 }
1307
1308
1309 LCursor const & BufferView::cursor() const
1310 {
1311         return cursor_;
1312 }
1313
1314
1315 pit_type BufferView::anchor_ref() const
1316 {
1317         return anchor_ref_;
1318 }
1319
1320
1321 ViewMetricsInfo const & BufferView::viewMetricsInfo()
1322 {
1323         return metrics_info_;
1324 }
1325
1326
1327 void BufferView::updateMetrics(bool singlepar)
1328 {
1329         LyXText & buftext = buffer_->text();
1330         TextMetrics & tm = textMetrics(&buftext);
1331         pit_type size = int(buftext.paragraphs().size());
1332
1333         if (anchor_ref_ > int(buftext.paragraphs().size() - 1)) {
1334                 anchor_ref_ = int(buftext.paragraphs().size() - 1);
1335                 offset_ref_ = 0;
1336         }
1337
1338         pit_type const pit = anchor_ref_;
1339         int pit1 = pit;
1340         int pit2 = pit;
1341         size_t const npit = buftext.paragraphs().size();
1342
1343         // Rebreak anchor paragraph. In Single Paragraph mode, rebreak only
1344         // the (main text, not inset!) paragraph containing the cursor.
1345         // (if this paragraph contains insets etc., rebreaking will
1346         // recursively descend)
1347         if (!singlepar || pit == cursor_.bottom().pit())
1348                 if (tm.redoParagraph(pit))
1349                         singlepar = false;
1350
1351         // Clear out the position cache in case of full screen redraw.
1352         if (!singlepar)
1353                 coord_cache_.clear();
1354
1355         int y0 = tm.parMetrics(pit).ascent() - offset_ref_;
1356
1357         // Redo paragraphs above anchor if necessary; again, in Single Par
1358         // mode, only if we encounter the (main text) one having the cursor.
1359         int y1 = y0;
1360         while (y1 > 0 && pit1 > 0) {
1361                 y1 -= tm.parMetrics(pit1).ascent();
1362                 --pit1;
1363                 if (!singlepar || pit1 == cursor_.bottom().pit())
1364                         tm.redoParagraph(pit1);
1365                 y1 -= tm.parMetrics(pit1).descent();
1366         }
1367
1368
1369         // Take care of ascent of first line
1370         y1 -= tm.parMetrics(pit1).ascent();
1371
1372         // Normalize anchor for next time
1373         anchor_ref_ = pit1;
1374         offset_ref_ = -y1;
1375
1376         // Grey at the beginning is ugly
1377         if (pit1 == 0 && y1 > 0) {
1378                 y0 -= y1;
1379                 y1 = 0;
1380                 anchor_ref_ = 0;
1381         }
1382
1383         // Redo paragraphs below the anchor if necessary. Single par mode:
1384         // only the one containing the cursor if encountered.
1385         int y2 = y0;
1386         while (y2 < height_ && pit2 < int(npit) - 1) {
1387                 y2 += tm.parMetrics(pit2).descent();
1388                 ++pit2;
1389                 if (!singlepar || pit2 == cursor_.bottom().pit())
1390                         tm.redoParagraph(pit2);
1391                 y2 += tm.parMetrics(pit2).ascent();
1392         }
1393
1394         // Take care of descent of last line
1395         y2 += tm.parMetrics(pit2).descent();
1396
1397         // The coordinates of all these paragraphs are correct, cache them
1398         int y = y1;
1399         CoordCache::InnerParPosCache & parPos = coord_cache_.parPos()[&buftext];
1400         for (pit_type pit = pit1; pit <= pit2; ++pit) {
1401                 ParagraphMetrics const & pm = tm.parMetrics(pit);
1402                 y += pm.ascent();
1403                 parPos[pit] = Point(0, y);
1404                 if (singlepar && pit == cursor_.bottom().pit()) {
1405                         // In Single Paragraph mode, collect here the
1406                         // y1 and y2 of the (one) paragraph the cursor is in
1407                         y1 = y - pm.ascent();
1408                         y2 = y + pm.descent();
1409                 }
1410                 y += pm.descent();
1411         }
1412
1413         if (singlepar) {
1414                 // collect cursor paragraph iter bounds
1415                 pit1 = cursor_.bottom().pit();
1416                 pit2 = cursor_.bottom().pit();
1417         }
1418
1419         lyxerr[Debug::DEBUG]
1420                 << BOOST_CURRENT_FUNCTION
1421                 << " y1: " << y1
1422                 << " y2: " << y2
1423                 << " pit1: " << pit1
1424                 << " pit2: " << pit2
1425                 << " npit: " << npit
1426                 << " singlepar: " << singlepar
1427                 << "size: " << size
1428                 << endl;
1429
1430         metrics_info_ = ViewMetricsInfo(pit1, pit2, y1, y2, singlepar, size);
1431
1432         if (lyxerr.debugging(Debug::WORKAREA)) {
1433                 lyxerr[Debug::WORKAREA] << "BufferView::updateMetrics" << endl;
1434                 coord_cache_.dump();
1435         }
1436 }
1437
1438
1439 void BufferView::menuInsertLyXFile(string const & filenm)
1440 {
1441         BOOST_ASSERT(cursor_.inTexted());
1442         string filename = filenm;
1443
1444         if (filename.empty()) {
1445                 // Launch a file browser
1446                 // FIXME UNICODE
1447                 string initpath = lyxrc.document_path;
1448
1449                 if (buffer_) {
1450                         string const trypath = buffer_->filePath();
1451                         // If directory is writeable, use this as default.
1452                         if (isDirWriteable(FileName(trypath)))
1453                                 initpath = trypath;
1454                 }
1455
1456                 // FIXME UNICODE
1457                 FileDialog fileDlg(_("Select LyX document to insert"),
1458                         LFUN_FILE_INSERT,
1459                         make_pair(_("Documents|#o#O"), from_utf8(lyxrc.document_path)),
1460                         make_pair(_("Examples|#E#e"), from_utf8(addPath(package().system_support(), "examples"))));
1461
1462                 FileDialog::Result result =
1463                         fileDlg.open(from_utf8(initpath),
1464                                      FileFilterList(_("LyX Documents (*.lyx)")),
1465                                      docstring());
1466
1467                 if (result.first == FileDialog::Later)
1468                         return;
1469
1470                 // FIXME UNICODE
1471                 filename = to_utf8(result.second);
1472
1473                 // check selected filename
1474                 if (filename.empty()) {
1475                         // emit message signal.
1476                         message(_("Canceled."));
1477                         return;
1478                 }
1479         }
1480
1481         // Get absolute path of file and add ".lyx"
1482         // to the filename if necessary
1483         filename = fileSearch(string(), filename, "lyx").absFilename();
1484
1485         docstring const disp_fn = makeDisplayPath(filename);
1486         // emit message signal.
1487         message(bformat(_("Inserting document %1$s..."), disp_fn));
1488
1489         docstring res;
1490         Buffer buf("", false);
1491         if (lyx::loadLyXFile(&buf, FileName(filename))) {
1492                 ErrorList & el = buffer_->errorList("Parse");
1493                 // Copy the inserted document error list into the current buffer one.
1494                 el = buf.errorList("Parse");
1495                 recordUndo(cursor_);
1496                 cap::pasteParagraphList(cursor_, buf.paragraphs(),
1497                                              buf.params().textclass, el);
1498                 res = _("Document %1$s inserted.");
1499         } else
1500                 res = _("Could not insert document %1$s");
1501
1502         // emit message signal.
1503         message(bformat(res, disp_fn));
1504         buffer_->errors("Parse");
1505         resize();
1506 }
1507
1508 } // namespace lyx