src/BufferView_pimpl.C

   1 /**
   2  * \file BufferView_pimpl.C
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author Asger Alstrup
   7  * \author Alfredo Braunstein
   8  * \author Lars Gullik Bjønnes
   9  * \author Jean-Marc Lasgouttes
  10  * \author Angus Leeming
  11  * \author John Levon
  12  * \author André Pönitz
  13  * \author Dekel Tsur
  14  * \author Jürgen Vigna
  15  *
  16  * Full author contact details are available in file CREDITS.
  17  */
  18
  19 #include <config.h>
  20
  21 #include "BufferView_pimpl.h"
  22 #include "buffer.h"
  23 #include "buffer_funcs.h"
  24 #include "bufferlist.h"
  25 #include "bufferparams.h"
  26 #include "coordcache.h"
  27 #include "cursor.h"
  28 #include "CutAndPaste.h"
  29 #include "debug.h"
  30 #include "dispatchresult.h"
  31 #include "factory.h"
  32 #include "FloatList.h"
  33 #include "funcrequest.h"
  34 #include "FuncStatus.h"
  35 #include "gettext.h"
  36 #include "intl.h"
  37 #include "insetiterator.h"
  38 #include "LaTeXFeatures.h"
  39 #include "lyx_cb.h" // added for Dispatch functions
  40 #include "lyx_main.h"
  41 #include "lyxfind.h"
  42 #include "lyxfunc.h"
  43 #include "lyxtext.h"
  44 #include "lyxrc.h"
  45 #include "session.h"
  46 #include "metricsinfo.h"
  47 #include "paragraph.h"
  48 #include "paragraph_funcs.h"
  49 #include "ParagraphParameters.h"
  50 #include "pariterator.h"
  51 #include "toc.h"
  52 #include "undo.h"
  53 #include "vspace.h"
  54
  55 #include "insets/insetbibtex.h"
  56 #include "insets/insetref.h"
  57 #include "insets/insettext.h"
  58
  59 #include "frontends/Alert.h"
  60 #include "frontends/Dialogs.h"
  61 #include "frontends/FileDialog.h"
  62 #include "frontends/font_metrics.h"
  63 #include "frontends/Gui.h"
  64 #include "frontends/LyXView.h"
  65 #include "frontends/Selection.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 using lyx::frontend::Clipboard;
  82 using lyx::frontend::Gui;
  83
  84 using lyx::pos_type;
  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::endl;
  96 using std::istringstream;
  97 using std::make_pair;
  98 using std::min;
  99 using std::max;
 100 using std::string;
 101 using std::mem_fun_ref;
 102 using std::vector;
 103
 104 extern BufferList bufferlist;
 105
 106
 107 namespace {
 108
 109 unsigned int const saved_positions_num = 20;
 110
 111 /// Return an inset of this class if it exists at the current cursor position
 112 template <class T>
 113 T * getInsetByCode(LCursor & cur, InsetBase::Code code)
 114 {
 115         T * inset = 0;
 116         DocIterator it = cur;
 117         if (it.nextInset() &&
 118             it.nextInset()->lyxCode() == code) {
 119                 inset = static_cast<T*>(it.nextInset());
 120         }
 121         return inset;
 122 }
 123
 124 } // anon namespace
 125
 126
 127 BufferView::Pimpl::Pimpl(BufferView & bv, LyXView * owner)
 128         : bv_(&bv), owner_(owner), buffer_(0), wh_(0),
 129           cursor_(bv),
 130           multiparsel_cache_(false), anchor_ref_(0), offset_ref_(0), needs_redraw_(false)
 131 {
 132         xsel_cache_.set = false;
 133
 134         saved_positions.resize(saved_positions_num);
 135         // load saved bookmarks
 136         lyx::Session::BookmarkList & bmList = LyX::ref().session().loadBookmarks();
 137         for (lyx::Session::BookmarkList::iterator bm = bmList.begin();
 138                 bm != bmList.end(); ++bm)
 139                 if (bm->get<0>() < saved_positions_num)
 140                         saved_positions[bm->get<0>()] = Position( bm->get<1>(), bm->get<2>(), bm->get<3>() );
 141         // and then clear them
 142         bmList.clear();
 143 }
 144
 145
 146 void BufferView::Pimpl::addError(ErrorItem const & ei)
 147 {
 148         errorlist_.push_back(ei);
 149 }
 150
 151
 152 void BufferView::Pimpl::showReadonly(bool)
 153 {
 154         owner_->updateWindowTitle();
 155         owner_->getDialogs().updateBufferDependent(false);
 156 }
 157
 158
 159 void BufferView::Pimpl::connectBuffer(Buffer & buf)
 160 {
 161         if (errorConnection_.connected())
 162                 disconnectBuffer();
 163
 164         errorConnection_ =
 165                 buf.error.connect(
 166                         boost::bind(&BufferView::Pimpl::addError, this, _1));
 167
 168         messageConnection_ =
 169                 buf.message.connect(
 170                         boost::bind(&LyXView::message, owner_, _1));
 171
 172         busyConnection_ =
 173                 buf.busy.connect(
 174                         boost::bind(&LyXView::busy, owner_, _1));
 175
 176         titleConnection_ =
 177                 buf.updateTitles.connect(
 178                         boost::bind(&LyXView::updateWindowTitle, owner_));
 179
 180         timerConnection_ =
 181                 buf.resetAutosaveTimers.connect(
 182                         boost::bind(&LyXView::resetAutosaveTimer, owner_));
 183
 184         readonlyConnection_ =
 185                 buf.readonly.connect(
 186                         boost::bind(&BufferView::Pimpl::showReadonly, this, _1));
 187
 188         closingConnection_ =
 189                 buf.closing.connect(
 190                         boost::bind(&BufferView::Pimpl::setBuffer, this, (Buffer *)0));
 191 }
 192
 193
 194 void BufferView::Pimpl::disconnectBuffer()
 195 {
 196         errorConnection_.disconnect();
 197         messageConnection_.disconnect();
 198         busyConnection_.disconnect();
 199         titleConnection_.disconnect();
 200         timerConnection_.disconnect();
 201         readonlyConnection_.disconnect();
 202         closingConnection_.disconnect();
 203 }
 204
 205
 206 void BufferView::Pimpl::newFile(string const & filename, string const & tname,
 207         bool isNamed)
 208 {
 209         setBuffer(::newFile(filename, tname, isNamed));
 210 }
 211
 212
 213 bool BufferView::Pimpl::loadLyXFile(string const & filename, bool tolastfiles)
 214 {
 215         // Get absolute path of file and add ".lyx"
 216         // to the filename if necessary
 217         string s = fileSearch(string(), filename, "lyx");
 218
 219         bool const found = !s.empty();
 220
 221         if (!found)
 222                 s = filename;
 223
 224         // File already open?
 225         if (bufferlist.exists(s)) {
 226                 string const file = makeDisplayPath(s, 20);
 227                 string text = bformat(_("The document %1$s is already "
 228                                         "loaded.\n\nDo you want to revert "
 229                                         "to the saved version?"), file);
 230                 int const ret = Alert::prompt(_("Revert to saved document?"),
 231                         text, 0, 1,  _("&Revert"), _("&Switch to document"));
 232
 233                 if (ret != 0) {
 234                         setBuffer(bufferlist.getBuffer(s));
 235                         return true;
 236                 }
 237                 // FIXME: should be LFUN_REVERT
 238                 if (!bufferlist.close(bufferlist.getBuffer(s), false))
 239                         return false;
 240                 // Fall through to new load. (Asger)
 241         }
 242
 243         Buffer * b = 0;
 244
 245         if (found) {
 246                 b = bufferlist.newBuffer(s);
 247                 connectBuffer(*b);
 248                 if (!::loadLyXFile(b, s)) {
 249                         bufferlist.release(b);
 250                         return false;
 251                 }
 252         } else {
 253                 string text = bformat(_("The document %1$s does not yet "
 254                                         "exist.\n\nDo you want to create "
 255                                         "a new document?"), s);
 256                 int const ret = Alert::prompt(_("Create new document?"),
 257                          text, 0, 1, _("&Create"), _("Cancel"));
 258
 259                 if (ret == 0)
 260                         b = ::newFile(s, string(), true);
 261                 else
 262                         return false;
 263         }
 264
 265         setBuffer(b);
 266         bv_->showErrorList(_("Parse"));
 267
 268         // scroll to the position when the file was last closed
 269         if (lyxrc.use_lastfilepos) {
 270                 lyx::pit_type pit;
 271                 lyx::pos_type pos;
 272                 boost::tie(pit, pos) = LyX::ref().session().loadFilePosition(s);
 273                 // I am not sure how to separate the following part to a function
 274                 // so I will leave this to Lars.
 275                 //
 276                 // check pit since the document may be externally changed.
 277                 if ( static_cast<size_t>(pit) < b->paragraphs().size() ) {
 278                         ParIterator it = b->par_iterator_begin();
 279                         ParIterator const end = b->par_iterator_end();
 280                         for (; it != end; ++it)
 281                                 if (it.pit() == pit) {
 282                                         // restored pos may be bigger than it->size
 283                                         bv_->setCursor(makeDocIterator(it, min(pos, it->size())));
 284                                         bv_->update(Update::FitCursor);
 285                                         break;
 286                                 }
 287                 }
 288         }
 289
 290         if (tolastfiles)
 291                 LyX::ref().session().addLastFile(b->fileName());
 292
 293         return true;
 294 }
 295
 296
 297 lyx::frontend::Gui & BufferView::Pimpl::gui() const
 298 {
 299         return owner_->gui();
 300 }
 301
 302
 303 int BufferView::Pimpl::width() const
 304 {
 305         return width_;
 306 }
 307
 308
 309 int BufferView::Pimpl::height() const
 310 {
 311         return height_;
 312 }
 313
 314
 315 void BufferView::Pimpl::setBuffer(Buffer * b)
 316 {
 317         lyxerr[Debug::INFO] << BOOST_CURRENT_FUNCTION
 318                             << "[ b = " << b << "]" << endl;
 319
 320         if (buffer_) {
 321                 disconnectBuffer();
 322                 // Save the actual cursor position and anchor inside the
 323                 // buffer so that it can be restored in case we rechange
 324                 // to this buffer later on.
 325                 buffer_->saveCursor(cursor_.selectionBegin(),
 326                                     cursor_.selectionEnd());
 327                 // current buffer is going to be switched-off, save cursor pos
 328                 LyX::ref().session().saveFilePosition(buffer_->fileName(),
 329                         boost::tie(cursor_.pit(), cursor_.pos()) );
 330         }
 331
 332         // If we are closing current buffer, switch to the first in
 333         // buffer list.
 334         if (!b) {
 335                 lyxerr[Debug::INFO] << BOOST_CURRENT_FUNCTION
 336                                     << " No Buffer!" << endl;
 337                 // We are closing the buffer, use the first buffer as current
 338                 buffer_ = bufferlist.first();
 339                 owner_->getDialogs().hideBufferDependent();
 340         } else {
 341                 // Set current buffer
 342                 buffer_ = b;
 343         }
 344
 345         // Reset old cursor
 346         cursor_ = LCursor(*bv_);
 347         anchor_ref_ = 0;
 348         offset_ref_ = 0;
 349
 350
 351         // If we're quitting lyx, don't bother updating stuff
 352         if (quitting)
 353                 return;
 354
 355         if (buffer_) {
 356                 lyxerr[Debug::INFO] << BOOST_CURRENT_FUNCTION
 357                                     << "Buffer addr: " << buffer_ << endl;
 358                 connectBuffer(*buffer_);
 359                 cursor_.push(buffer_->inset());
 360                 cursor_.resetAnchor();
 361                 buffer_->text().init(bv_);
 362                 buffer_->text().setCurrentFont(cursor_);
 363                 if (buffer_->getCursor().size() > 0 &&
 364                     buffer_->getAnchor().size() > 0)
 365                 {
 366                         cursor_.setCursor(buffer_->getAnchor().asDocIterator(&(buffer_->inset())));
 367                         cursor_.resetAnchor();
 368                         cursor_.setCursor(buffer_->getCursor().asDocIterator(&(buffer_->inset())));
 369                         cursor_.setSelection();
 370                 }
 371
 372                 // Buffer-dependent dialogs should be updated or
 373                 // hidden. This should go here because some dialogs (eg ToC)
 374                 // require bv_->text.
 375                 owner_->getDialogs().updateBufferDependent(true);
 376         }
 377
 378         update();
 379         owner_->updateMenubar();
 380         owner_->updateToolbars();
 381         owner_->updateLayoutChoice();
 382         owner_->updateWindowTitle();
 383
 384         // This is done after the layout combox has been populated
 385         if (buffer_) {
 386                 size_t i = cursor_.depth() - 1;
 387                 // we know we'll eventually find a paragraph
 388                 while (true) {
 389                         CursorSlice const & slice = cursor_[i];
 390                         if (!slice.inset().inMathed()) {
 391                                 LyXLayout_ptr const layout = slice.paragraph().layout();
 392                                 owner_->setLayout(layout->name());
 393                                 break;
 394                         }
 395                         BOOST_ASSERT(i>0);
 396                         --i;
 397                 }
 398         }
 399
 400         if (buffer_ && lyx::graphics::Previews::status() != LyXRC::PREVIEW_OFF)
 401                 lyx::graphics::Previews::get().generateBufferPreviews(*buffer_);
 402 }
 403
 404
 405 void BufferView::Pimpl::resizeCurrentBuffer()
 406 {
 407         lyxerr[Debug::DEBUG] << BOOST_CURRENT_FUNCTION << endl;
 408         owner_->busy(true);
 409         owner_->message(_("Formatting document..."));
 410
 411         LyXText * text = bv_->text();
 412         if (!text)
 413                 return;
 414
 415         text->init(bv_);
 416         update();
 417
 418         switchKeyMap();
 419         owner_->busy(false);
 420
 421         // Reset the "Formatting..." message
 422         owner_->clearMessage();
 423 }
 424
 425
 426 void BufferView::Pimpl::updateScrollbar()
 427 {
 428         if (!bv_->text()) {
 429                 lyxerr[Debug::DEBUG] << BOOST_CURRENT_FUNCTION
 430                                      << " no text in updateScrollbar" << endl;
 431                 scrollbarParameters_.reset();
 432                 return;
 433         }
 434
 435         LyXText & t = *bv_->text();
 436         int const parsize = int(t.paragraphs().size() - 1);
 437         if (anchor_ref_ >  parsize)  {
 438                 anchor_ref_ = parsize;
 439                 offset_ref_ = 0;
 440         }
 441
 442         lyxerr[Debug::GUI]
 443                 << BOOST_CURRENT_FUNCTION
 444                 << " Updating scrollbar: height: " << t.paragraphs().size()
 445                 << " curr par: " << cursor_.bottom().pit()
 446                 << " default height " << defaultRowHeight() << endl;
 447
 448         // It would be better to fix the scrollbar to understand
 449         // values in [0..1] and divide everything by wh
 450
 451         // estimated average paragraph height:
 452         if (wh_ == 0)
 453                 wh_ = height_ / 4;
 454         int h = t.getPar(anchor_ref_).height();
 455
 456         // Normalize anchor/offset (MV):
 457         while (offset_ref_ > h && anchor_ref_ < parsize) {
 458                 anchor_ref_++;
 459                 offset_ref_ -= h;
 460                 h = t.getPar(anchor_ref_).height();
 461         }
 462         // Look at paragraph heights on-screen
 463         int sumh = 0;
 464         int nh = 0;
 465         for (lyx::pit_type pit = anchor_ref_; pit <= parsize; ++pit) {
 466                 if (sumh > height_)
 467                         break;
 468                 int const h2 = t.getPar(pit).height();
 469                 sumh += h2;
 470                 nh++;
 471         }
 472         int const hav = sumh / nh;
 473         // More realistic average paragraph height
 474         if (hav > wh_)
 475                 wh_ = hav;
 476
 477         scrollbarParameters_.height = (parsize + 1) * wh_;
 478         scrollbarParameters_.position = anchor_ref_ * wh_ + int(offset_ref_ * wh_ / float(h));
 479         scrollbarParameters_.lineScrollHeight = int(wh_ * defaultRowHeight() / float(h));
 480 }
 481
 482
 483 ScrollbarParameters const & BufferView::Pimpl::scrollbarParameters() const
 484 {
 485         return scrollbarParameters_;
 486 }
 487
 488
 489 void BufferView::Pimpl::scrollDocView(int value)
 490 {
 491         lyxerr[Debug::GUI] << BOOST_CURRENT_FUNCTION
 492                            << "[ value = " << value << "]" << endl;
 493
 494         if (!buffer_)
 495                 return;
 496
 497         LyXText & t = *bv_->text();
 498
 499         float const bar = value / float(wh_ * t.paragraphs().size());
 500
 501         anchor_ref_ = int(bar * t.paragraphs().size());
 502         if (anchor_ref_ >  int(t.paragraphs().size()) - 1)
 503                 anchor_ref_ = int(t.paragraphs().size()) - 1;
 504         t.redoParagraph(anchor_ref_);
 505         int const h = t.getPar(anchor_ref_).height();
 506         offset_ref_ = int((bar * t.paragraphs().size() - anchor_ref_) * h);
 507         update();
 508
 509         if (!lyxrc.cursor_follows_scrollbar)
 510                 return;
 511
 512         int const height = 2 * defaultRowHeight();
 513         int const first = height;
 514         int const last = height_ - height;
 515         LCursor & cur = cursor_;
 516
 517         bv_funcs::CurStatus st = bv_funcs::status(bv_, cur);
 518
 519         switch (st) {
 520         case bv_funcs::CUR_ABOVE:
 521                 t.setCursorFromCoordinates(cur, 0, first);
 522                 cur.clearSelection();
 523                 break;
 524         case bv_funcs::CUR_BELOW:
 525                 t.setCursorFromCoordinates(cur, 0, last);
 526                 cur.clearSelection();
 527                 break;
 528         case bv_funcs::CUR_INSIDE:
 529                 int const y = bv_funcs::getPos(cur, cur.boundary()).y_;
 530                 int const newy = min(last, max(y, first));
 531                 if (y != newy) {
 532                         cur.reset(buffer_->inset());
 533                         t.setCursorFromCoordinates(cur, 0, newy);
 534                 }
 535         }
 536         owner_->updateLayoutChoice();
 537 }
 538
 539
 540 void BufferView::Pimpl::scroll(int /*lines*/)
 541 {
 542 //      if (!buffer_)
 543 //              return;
 544 //
 545 //      LyXText const * t = bv_->text();
 546 //      int const line_height = defaultRowHeight();
 547 //
 548 //      // The new absolute coordinate
 549 //      int new_top_y = top_y() + lines * line_height;
 550 //
 551 //      // Restrict to a valid value
 552 //      new_top_y = std::min(t->height() - 4 * line_height, new_top_y);
 553 //      new_top_y = std::max(0, new_top_y);
 554 //
 555 //      scrollDocView(new_top_y);
 556 //
 557 //      // Update the scrollbar.
 558 //      workArea_->setScrollbarParams(t->height(), top_y(), defaultRowHeight());
 559 }
 560
 561
 562 void BufferView::Pimpl::workAreaKeyPress(LyXKeySymPtr key,
 563                                          key_modifier::state state)
 564 {
 565         owner_->getLyXFunc().processKeySym(key, state);
 566 }
 567
 568
 569 void BufferView::Pimpl::selectionRequested()
 570 {
 571         static string sel;
 572
 573         if (!available())
 574                 return;
 575
 576         LCursor & cur = cursor_;
 577
 578         if (!cur.selection()) {
 579                 xsel_cache_.set = false;
 580                 return;
 581         }
 582
 583         if (!xsel_cache_.set ||
 584             cur.top() != xsel_cache_.cursor ||
 585             cur.anchor_.top() != xsel_cache_.anchor)
 586         {
 587                 xsel_cache_.cursor = cur.top();
 588                 xsel_cache_.anchor = cur.anchor_.top();
 589                 xsel_cache_.set = cur.selection();
 590                 sel = cur.selectionAsString(false);
 591                 if (!sel.empty())
 592                         owner_->gui().selection().put(sel);
 593         }
 594 }
 595
 596
 597 void BufferView::Pimpl::selectionLost()
 598 {
 599         if (available()) {
 600                 cursor_.clearSelection();
 601                 xsel_cache_.set = false;
 602         }
 603 }
 604
 605
 606 void BufferView::Pimpl::workAreaResize(int width, int height)
 607 {
 608         bool const widthChange = width != width_;
 609         bool const heightChange = height != height_;
 610
 611         // Update from work area
 612         width_ = width;
 613         height_ = height;
 614
 615         if (buffer_ && widthChange) {
 616                 // The visible LyXView need a resize
 617                 resizeCurrentBuffer();
 618         }
 619
 620         if (widthChange || heightChange)
 621                 update();
 622
 623         owner_->updateLayoutChoice();
 624 }
 625
 626
 627 bool BufferView::Pimpl::fitCursor()
 628 {
 629         if (bv_funcs::status(bv_, cursor_) == bv_funcs::CUR_INSIDE) {
 630                 LyXFont const font = cursor_.getFont();
 631                 int const asc = font_metrics::maxAscent(font);
 632                 int const des = font_metrics::maxDescent(font);
 633                 Point const p = bv_funcs::getPos(cursor_, cursor_.boundary());
 634                 if (p.y_ - asc >= 0 && p.y_ + des < height_)
 635                         return false;
 636         }
 637         center();
 638         return true;
 639 }
 640
 641
 642 bool BufferView::Pimpl::multiParSel()
 643 {
 644         if (!cursor_.selection())
 645                 return false;
 646         bool ret = multiparsel_cache_;
 647         multiparsel_cache_ = cursor_.selBegin().pit() != cursor_.selEnd().pit();
 648         // Either this, or previous selection spans paragraphs
 649         return ret || multiparsel_cache_;
 650 }
 651
 652
 653 ViewMetricsInfo const & BufferView::Pimpl::viewMetricsInfo()
 654 {
 655         return metrics_info_;
 656 }
 657
 658
 659 void BufferView::Pimpl::update(Update::flags flags)
 660 {
 661         // This is close to a hot-path.
 662         if (lyxerr.debugging(Debug::DEBUG)) {
 663                 lyxerr[Debug::DEBUG]
 664                         << BOOST_CURRENT_FUNCTION
 665                         << "[fitcursor = " << (flags & Update::FitCursor)
 666                         << ", forceupdate = " << (flags & Update::Force)
 667                         << ", singlepar = " << (flags & Update::SinglePar)
 668                         << "]  buffer: " << buffer_ << endl;
 669         }
 670
 671         // Check needed to survive LyX startup
 672         if (buffer_) {
 673                 // Update macro store
 674                 buffer_->buildMacros();
 675
 676                 // First drawing step
 677                 bool singlePar = flags & Update::SinglePar;
 678                 needs_redraw_ = flags & (Update::Force | Update::SinglePar);
 679
 680                 updateMetrics(singlePar);
 681
 682                 if ((flags & (Update::FitCursor | Update::MultiParSel))
 683                     && (fitCursor() || multiParSel())) {
 684                         needs_redraw_ = true;
 685                         singlePar = false;
 686                 }
 687
 688                 if (needs_redraw_) {
 689                         // Second drawing step
 690                         updateMetrics(singlePar);
 691                 }
 692         }
 693
 694         owner_->redrawWorkArea();
 695         owner_->view_state_changed();
 696 }
 697
 698
 699 bool BufferView::Pimpl::available() const
 700 {
 701         return buffer_ && bv_->text();
 702 }
 703
 704
 705 Change const BufferView::Pimpl::getCurrentChange()
 706 {
 707         if (!buffer_->params().tracking_changes)
 708                 return Change(Change::UNCHANGED);
 709
 710         LyXText * text = bv_->getLyXText();
 711         LCursor & cur = cursor_;
 712
 713         if (!cur.selection())
 714                 return Change(Change::UNCHANGED);
 715
 716         return text->getPar(cur.selBegin().pit()).
 717                         lookupChange(cur.selBegin().pos());
 718 }
 719
 720
 721 void BufferView::Pimpl::savePosition(unsigned int i)
 722 {
 723         if (i >= saved_positions_num)
 724                 return;
 725         BOOST_ASSERT(cursor_.inTexted());
 726         saved_positions[i] = Position(buffer_->fileName(),
 727                                       cursor_.paragraph().id(),
 728                                       cursor_.pos());
 729         if (i > 0)
 730                 owner_->message(bformat(_("Saved bookmark %1$d"), i));
 731 }
 732
 733
 734 void BufferView::Pimpl::restorePosition(unsigned int i)
 735 {
 736         if (i >= saved_positions_num)
 737                 return;
 738
 739         string const fname = saved_positions[i].filename;
 740
 741         cursor_.clearSelection();
 742
 743         if (fname != buffer_->fileName()) {
 744                 Buffer * b = 0;
 745                 if (bufferlist.exists(fname))
 746                         b = bufferlist.getBuffer(fname);
 747                 else {
 748                         b = bufferlist.newBuffer(fname);
 749                         // Don't ask, just load it
 750                         ::loadLyXFile(b, fname);
 751                 }
 752                 if (b)
 753                         setBuffer(b);
 754         }
 755
 756         ParIterator par = buffer_->getParFromID(saved_positions[i].par_id);
 757         if (par == buffer_->par_iterator_end())
 758                 return;
 759
 760         bv_->setCursor(makeDocIterator(par, min(par->size(), saved_positions[i].par_pos)));
 761
 762         if (i > 0)
 763                 owner_->message(bformat(_("Moved to bookmark %1$d"), i));
 764 }
 765
 766
 767 bool BufferView::Pimpl::isSavedPosition(unsigned int i)
 768 {
 769         return i < saved_positions_num && !saved_positions[i].filename.empty();
 770 }
 771
 772
 773 void BufferView::Pimpl::saveSavedPositions()
 774 {
 775         // save bookmarks. It is better to use the pit interface
 776         // but I do not know how to effectively convert between
 777         // par_id and pit.
 778         for (unsigned int i=1; i < saved_positions_num; ++i) {
 779                 if ( isSavedPosition(i) )
 780                         LyX::ref().session().saveBookmark( boost::tie(
 781                                 i,
 782                                 saved_positions[i].filename,
 783                                 saved_positions[i].par_id,
 784                                 saved_positions[i].par_pos) );
 785         }
 786 }
 787
 788
 789 void BufferView::Pimpl::switchKeyMap()
 790 {
 791         if (!lyxrc.rtl_support)
 792                 return;
 793
 794         Intl & intl = owner_->getIntl();
 795         if (bv_->getLyXText()->real_current_font.isRightToLeft()) {
 796                 if (intl.keymap == Intl::PRIMARY)
 797                         intl.keyMapSec();
 798         } else {
 799                 if (intl.keymap == Intl::SECONDARY)
 800                         intl.keyMapPrim();
 801         }
 802 }
 803
 804
 805 void BufferView::Pimpl::center()
 806 {
 807         CursorSlice & bot = cursor_.bottom();
 808         lyx::pit_type const pit = bot.pit();
 809         bot.text()->redoParagraph(pit);
 810         Paragraph const & par = bot.text()->paragraphs()[pit];
 811         anchor_ref_ = pit;
 812         offset_ref_ = bv_funcs::coordOffset(cursor_, cursor_.boundary()).y_
 813                 + par.ascent() - height_ / 2;
 814 }
 815
 816
 817
 818 void BufferView::Pimpl::menuInsertLyXFile(string const & filenm)
 819 {
 820         BOOST_ASSERT(cursor_.inTexted());
 821         string filename = filenm;
 822
 823         if (filename.empty()) {
 824                 // Launch a file browser
 825                 string initpath = lyxrc.document_path;
 826
 827                 if (available()) {
 828                         string const trypath = owner_->buffer()->filePath();
 829                         // If directory is writeable, use this as default.
 830                         if (isDirWriteable(trypath))
 831                                 initpath = trypath;
 832                 }
 833
 834                 FileDialog fileDlg(_("Select LyX document to insert"),
 835                         LFUN_FILE_INSERT,
 836                         make_pair(string(_("Documents|#o#O")),
 837                                   string(lyxrc.document_path)),
 838                         make_pair(string(_("Examples|#E#e")),
 839                                   string(addPath(package().system_support(), "examples"))));
 840
 841                 FileDialog::Result result =
 842                         fileDlg.open(initpath,
 843                                      FileFilterList(_("LyX Documents (*.lyx)")),
 844                                      string());
 845
 846                 if (result.first == FileDialog::Later)
 847                         return;
 848
 849                 filename = result.second;
 850
 851                 // check selected filename
 852                 if (filename.empty()) {
 853                         owner_->message(_("Canceled."));
 854                         return;
 855                 }
 856         }
 857
 858         // Get absolute path of file and add ".lyx"
 859         // to the filename if necessary
 860         filename = fileSearch(string(), filename, "lyx");
 861
 862         string const disp_fn = makeDisplayPath(filename);
 863         owner_->message(bformat(_("Inserting document %1$s..."), disp_fn));
 864
 865         string res;
 866         Buffer buf("", false);
 867         buf.error.connect(boost::bind(&BufferView::Pimpl::addError, this, _1));
 868         if (::loadLyXFile(&buf, makeAbsPath(filename))) {
 869                 lyx::cap::pasteParagraphList(cursor_, buf.paragraphs(),
 870                                              buf.params().textclass);
 871                 res = _("Document %1$s inserted.");
 872         } else
 873                 res = _("Could not insert document %1$s");
 874
 875         owner_->message(bformat(res, disp_fn));
 876         bv_->showErrorList(_("Document insertion"));
 877         resizeCurrentBuffer();
 878 }
 879
 880
 881 void BufferView::Pimpl::trackChanges()
 882 {
 883         bool const tracking = buffer_->params().tracking_changes;
 884
 885         if (!tracking) {
 886                 for_each(buffer_->par_iterator_begin(),
 887                          buffer_->par_iterator_end(),
 888                          bind(&Paragraph::trackChanges, _1, Change::UNCHANGED));
 889                 buffer_->params().tracking_changes = true;
 890
 891                 // We cannot allow undos beyond the freeze point
 892                 buffer_->undostack().clear();
 893         } else {
 894                 cursor_.setCursor(doc_iterator_begin(buffer_->inset()));
 895                 if (lyx::find::findNextChange(bv_)) {
 896                         owner_->getDialogs().show("changes");
 897                         return;
 898                 }
 899
 900                 for_each(buffer_->par_iterator_begin(),
 901                          buffer_->par_iterator_end(),
 902                          mem_fun_ref(&Paragraph::untrackChanges));
 903
 904                 buffer_->params().tracking_changes = false;
 905         }
 906
 907         buffer_->redostack().clear();
 908 }
 909
 910
 911 bool BufferView::Pimpl::workAreaDispatch(FuncRequest const & cmd0)
 912 {
 913         //lyxerr << BOOST_CURRENT_FUNCTION << "[ cmd0 " << cmd0 << "]" << endl;
 914
 915         // This is only called for mouse related events including
 916         // LFUN_FILE_OPEN generated by drag-and-drop.
 917         FuncRequest cmd = cmd0;
 918
 919         // Handle drag&drop
 920         if (cmd.action == LFUN_FILE_OPEN) {
 921                 owner_->dispatch(cmd);
 922                 return true;
 923         }
 924
 925         if (!buffer_)
 926                 return false;
 927
 928         LCursor cur(*bv_);
 929         cur.push(buffer_->inset());
 930         cur.selection() = cursor_.selection();
 931
 932         // Doesn't go through lyxfunc, so we need to update
 933         // the layout choice etc. ourselves
 934
 935         // E.g. Qt mouse press when no buffer
 936         if (!available())
 937                 return false;
 938
 939         // Either the inset under the cursor or the
 940         // surrounding LyXText will handle this event.
 941
 942         // Build temporary cursor.
 943         cmd.y = min(max(cmd.y, -1), height_);
 944         InsetBase * inset = bv_->text()->editXY(cur, cmd.x, cmd.y);
 945         //lyxerr << BOOST_CURRENT_FUNCTION
 946         //       << " * hit inset at tip: " << inset << endl;
 947         //lyxerr << BOOST_CURRENT_FUNCTION
 948         //       << " * created temp cursor:" << cur << endl;
 949
 950         // Put anchor at the same position.
 951         cur.resetAnchor();
 952
 953         // Try to dispatch to an non-editable inset near this position
 954         // via the temp cursor. If the inset wishes to change the real
 955         // cursor it has to do so explicitly by using
 956         //  cur.bv().cursor() = cur;  (or similar)
 957         if (inset)
 958                 inset->dispatch(cur, cmd);
 959
 960         // Now dispatch to the temporary cursor. If the real cursor should
 961         // be modified, the inset's dispatch has to do so explicitly.
 962         if (!cur.result().dispatched())
 963                 cur.dispatch(cmd);
 964
 965         if (cur.result().dispatched()) {
 966                 // Redraw if requested or necessary.
 967                 if (cur.result().update())
 968                         update(Update::FitCursor | Update::Force);
 969                 else
 970                         update(Update::FitCursor | Update::MultiParSel);
 971         }
 972
 973         // Skip these when selecting
 974         if (cmd.action != LFUN_MOUSE_MOTION) {
 975                 owner_->updateLayoutChoice();
 976                 owner_->updateToolbars();
 977         }
 978
 979         // Slight hack: this is only called currently when we
 980         // clicked somewhere, so we force through the display
 981         // of the new status here.
 982         owner_->clearMessage();
 983         return true;
 984 }
 985
 986
 987 FuncStatus BufferView::Pimpl::getStatus(FuncRequest const & cmd)
 988 {
 989         FuncStatus flag;
 990
 991         switch (cmd.action) {
 992
 993         case LFUN_UNDO:
 994                 flag.enabled(!buffer_->undostack().empty());
 995                 break;
 996         case LFUN_REDO:
 997                 flag.enabled(!buffer_->redostack().empty());
 998                 break;
 999         case LFUN_FILE_INSERT:
1000         case LFUN_FILE_INSERT_ASCII_PARA:
1001         case LFUN_FILE_INSERT_ASCII:
1002         case LFUN_BOOKMARK_SAVE:
1003                 // FIXME: Actually, these LFUNS should be moved to LyXText
1004                 flag.enabled(cursor_.inTexted());
1005                 break;
1006         case LFUN_FONT_STATE:
1007         case LFUN_LABEL_INSERT:
1008         case LFUN_PARAGRAPH_GOTO:
1009         // FIXME handle non-trivially
1010         case LFUN_OUTLINE_UP:
1011         case LFUN_OUTLINE_DOWN:
1012         case LFUN_OUTLINE_IN:
1013         case LFUN_OUTLINE_OUT:
1014         case LFUN_ERROR_NEXT:
1015         case LFUN_NOTE_NEXT:
1016         case LFUN_REFERENCE_NEXT:
1017         case LFUN_WORD_FIND:
1018         case LFUN_WORD_REPLACE:
1019         case LFUN_MARK_OFF:
1020         case LFUN_MARK_ON:
1021         case LFUN_MARK_TOGGLE:
1022         case LFUN_SCREEN_RECENTER:
1023         case LFUN_BIBTEX_DATABASE_ADD:
1024         case LFUN_BIBTEX_DATABASE_DEL:
1025         case LFUN_WORDS_COUNT:
1026                 flag.enabled(true);
1027                 break;
1028
1029         case LFUN_LABEL_GOTO: {
1030                 flag.enabled(!cmd.argument.empty()
1031                     || getInsetByCode<InsetRef>(cursor_, InsetBase::REF_CODE));
1032                 break;
1033         }
1034
1035         case LFUN_BOOKMARK_GOTO:
1036                 flag.enabled(isSavedPosition(convert<unsigned int>(cmd.argument)));
1037                 break;
1038         case LFUN_CHANGES_TRACK:
1039                 flag.enabled(true);
1040                 flag.setOnOff(buffer_->params().tracking_changes);
1041                 break;
1042
1043         case LFUN_CHANGES_OUTPUT: {
1044                 OutputParams runparams;
1045                 LaTeXFeatures features(*buffer_, buffer_->params(), runparams);
1046                 flag.enabled(buffer_ && buffer_->params().tracking_changes
1047                         && features.isAvailable("dvipost"));
1048                 flag.setOnOff(buffer_->params().output_changes);
1049                 break;
1050         }
1051
1052         case LFUN_CHANGES_MERGE:
1053         case LFUN_CHANGE_ACCEPT: // what about these two
1054         case LFUN_CHANGE_REJECT: // what about these two
1055         case LFUN_ALL_CHANGES_ACCEPT:
1056         case LFUN_ALL_CHANGES_REJECT:
1057                 flag.enabled(buffer_ && buffer_->params().tracking_changes);
1058                 break;
1059
1060         case LFUN_BUFFER_TOGGLE_COMPRESSION: {
1061                 flag.setOnOff(buffer_->params().compressed);
1062                 break;
1063         }
1064
1065         default:
1066                 flag.enabled(false);
1067         }
1068
1069         return flag;
1070 }
1071
1072
1073
1074 bool BufferView::Pimpl::dispatch(FuncRequest const & cmd)
1075 {
1076         //lyxerr << BOOST_CURRENT_FUNCTION
1077         //       << [ cmd = " << cmd << "]" << endl;
1078
1079         // Make sure that the cached BufferView is correct.
1080         lyxerr[Debug::ACTION] << BOOST_CURRENT_FUNCTION
1081                 << " action[" << cmd.action << ']'
1082                 << " arg[" << cmd.argument << ']'
1083                 << " x[" << cmd.x << ']'
1084                 << " y[" << cmd.y << ']'
1085                 << " button[" << cmd.button() << ']'
1086                 << endl;
1087
1088         LCursor & cur = cursor_;
1089
1090         switch (cmd.action) {
1091
1092         case LFUN_UNDO:
1093                 if (available()) {
1094                         cur.message(_("Undo"));
1095                         cur.clearSelection();
1096                         if (!textUndo(*bv_))
1097                                 cur.message(_("No further undo information"));
1098                         update();
1099                         switchKeyMap();
1100                 }
1101                 break;
1102
1103         case LFUN_REDO:
1104                 if (available()) {
1105                         cur.message(_("Redo"));
1106                         cur.clearSelection();
1107                         if (!textRedo(*bv_))
1108                                 cur.message(_("No further redo information"));
1109                         update();
1110                         switchKeyMap();
1111                 }
1112                 break;
1113
1114         case LFUN_FILE_INSERT:
1115                 menuInsertLyXFile(cmd.argument);
1116                 break;
1117
1118         case LFUN_FILE_INSERT_ASCII_PARA:
1119                 insertAsciiFile(bv_, cmd.argument, true);
1120                 break;
1121
1122         case LFUN_FILE_INSERT_ASCII:
1123                 insertAsciiFile(bv_, cmd.argument, false);
1124                 break;
1125
1126         case LFUN_FONT_STATE:
1127                 cur.message(cur.currentState());
1128                 break;
1129
1130         case LFUN_BOOKMARK_SAVE:
1131                 savePosition(convert<unsigned int>(cmd.argument));
1132                 break;
1133
1134         case LFUN_BOOKMARK_GOTO:
1135                 restorePosition(convert<unsigned int>(cmd.argument));
1136                 break;
1137
1138         case LFUN_LABEL_GOTO: {
1139                 string label = cmd.argument;
1140                 if (label.empty()) {
1141                         InsetRef * inset =
1142                                 getInsetByCode<InsetRef>(cursor_,
1143                                                          InsetBase::REF_CODE);
1144                         if (inset) {
1145                                 label = inset->getContents();
1146                                 savePosition(0);
1147                         }
1148                 }
1149
1150                 if (!label.empty())
1151                         bv_->gotoLabel(label);
1152                 break;
1153         }
1154
1155         case LFUN_PARAGRAPH_GOTO: {
1156                 int const id = convert<int>(cmd.argument);
1157                 ParIterator par = buffer_->getParFromID(id);
1158                 if (par == buffer_->par_iterator_end()) {
1159                         lyxerr[Debug::INFO] << "No matching paragraph found! ["
1160                                             << id << ']' << endl;
1161                         break;
1162                 } else {
1163                         lyxerr[Debug::INFO] << "Paragraph " << par->id()
1164                                             << " found." << endl;
1165                 }
1166
1167                 // Set the cursor
1168                 bv_->setCursor(makeDocIterator(par, 0));
1169
1170                 update();
1171                 switchKeyMap();
1172                 break;
1173         }
1174
1175         case LFUN_OUTLINE_UP:
1176                 lyx::toc::outline(lyx::toc::Up, cursor_);
1177                 cursor_.text()->setCursor(cursor_, cursor_.pit(), 0);
1178                 updateLabels(*buffer_);
1179                 break;
1180         case LFUN_OUTLINE_DOWN:
1181                 lyx::toc::outline(lyx::toc::Down, cursor_);
1182                 cursor_.text()->setCursor(cursor_, cursor_.pit(), 0);
1183                 updateLabels(*buffer_);
1184                 break;
1185         case LFUN_OUTLINE_IN:
1186                 lyx::toc::outline(lyx::toc::In, cursor_);
1187                 updateLabels(*buffer_);
1188                 break;
1189         case LFUN_OUTLINE_OUT:
1190                 lyx::toc::outline(lyx::toc::Out, cursor_);
1191                 updateLabels(*buffer_);
1192                 break;
1193
1194         case LFUN_ERROR_NEXT:
1195                 bv_funcs::gotoInset(bv_, InsetBase::ERROR_CODE, false);
1196                 break;
1197
1198         case LFUN_NOTE_NEXT:
1199                 bv_funcs::gotoInset(bv_, InsetBase::NOTE_CODE, false);
1200                 break;
1201
1202         case LFUN_REFERENCE_NEXT: {
1203                 vector<InsetBase_code> tmp;
1204                 tmp.push_back(InsetBase::LABEL_CODE);
1205                 tmp.push_back(InsetBase::REF_CODE);
1206                 bv_funcs::gotoInset(bv_, tmp, true);
1207                 break;
1208         }
1209
1210         case LFUN_CHANGES_TRACK:
1211                 trackChanges();
1212                 break;
1213
1214         case LFUN_CHANGES_OUTPUT: {
1215                 bool const state = buffer_->params().output_changes;
1216                 buffer_->params().output_changes = !state;
1217                 break;
1218         }
1219
1220         case LFUN_CHANGES_MERGE:
1221                 if (lyx::find::findNextChange(bv_))
1222                         owner_->getDialogs().show("changes");
1223                 break;
1224
1225         case LFUN_ALL_CHANGES_ACCEPT: {
1226                 cursor_.reset(buffer_->inset());
1227 #ifdef WITH_WARNINGS
1228 #warning FIXME changes
1229 #endif
1230                 while (lyx::find::findNextChange(bv_))
1231                         bv_->getLyXText()->acceptChange(cursor_);
1232                 update();
1233                 break;
1234         }
1235
1236         case LFUN_ALL_CHANGES_REJECT: {
1237                 cursor_.reset(buffer_->inset());
1238 #ifdef WITH_WARNINGS
1239 #warning FIXME changes
1240 #endif
1241                 while (lyx::find::findNextChange(bv_))
1242                         bv_->getLyXText()->rejectChange(cursor_);
1243                 break;
1244         }
1245
1246         case LFUN_WORD_FIND:
1247                 lyx::find::find(bv_, cmd);
1248                 break;
1249
1250         case LFUN_WORD_REPLACE:
1251                 lyx::find::replace(bv_, cmd);
1252                 break;
1253
1254         case LFUN_MARK_OFF:
1255                 cur.clearSelection();
1256                 cur.resetAnchor();
1257                 cur.message(N_("Mark off"));
1258                 break;
1259
1260         case LFUN_MARK_ON:
1261                 cur.clearSelection();
1262                 cur.mark() = true;
1263                 cur.resetAnchor();
1264                 cur.message(N_("Mark on"));
1265                 break;
1266
1267         case LFUN_MARK_TOGGLE:
1268                 cur.clearSelection();
1269                 if (cur.mark()) {
1270                         cur.mark() = false;
1271                         cur.message(N_("Mark removed"));
1272                 } else {
1273                         cur.mark() = true;
1274                         cur.message(N_("Mark set"));
1275                 }
1276                 cur.resetAnchor();
1277                 break;
1278
1279         case LFUN_SCREEN_RECENTER:
1280                 center();
1281                 break;
1282
1283         case LFUN_BIBTEX_DATABASE_ADD: {
1284                 LCursor tmpcur = cursor_;
1285                 bv_funcs::findInset(tmpcur, InsetBase::BIBTEX_CODE, false);
1286                 InsetBibtex * inset = getInsetByCode<InsetBibtex>(tmpcur,
1287                                                 InsetBase::BIBTEX_CODE);
1288                 if (inset) {
1289                         if (inset->addDatabase(cmd.argument))
1290                                 buffer_->updateBibfilesCache();
1291                 }
1292                 break;
1293         }
1294
1295         case LFUN_BIBTEX_DATABASE_DEL: {
1296                 LCursor tmpcur = cursor_;
1297                 bv_funcs::findInset(tmpcur, InsetBase::BIBTEX_CODE, false);
1298                 InsetBibtex * inset = getInsetByCode<InsetBibtex>(tmpcur,
1299                                                 InsetBase::BIBTEX_CODE);
1300                 if (inset) {
1301                         if (inset->delDatabase(cmd.argument))
1302                                 buffer_->updateBibfilesCache();
1303                 }
1304                 break;
1305         }
1306
1307         case LFUN_WORDS_COUNT: {
1308                 DocIterator from, to;
1309                 if (cur.selection()) {
1310                         from = cur.selectionBegin();
1311                         to = cur.selectionEnd();
1312                 } else {
1313                         from = doc_iterator_begin(buffer_->inset());
1314                         to = doc_iterator_end(buffer_->inset());
1315                 }
1316                 int const count = countWords(from, to);
1317                 string message;
1318                 if (count != 1) {
1319                         if (cur.selection())
1320                                 message = bformat(_("%1$d words in selection."),
1321                                           count);
1322                                 else
1323                                         message = bformat(_("%1$d words in document."),
1324                                                           count);
1325                 }
1326                 else {
1327                         if (cur.selection())
1328                                 message = _("One word in selection.");
1329                         else
1330                                 message = _("One word in document.");
1331                 }
1332
1333                 Alert::information(_("Count words"), message);
1334         }
1335                 break;
1336
1337         case LFUN_BUFFER_TOGGLE_COMPRESSION:
1338                 // turn compression on/off
1339                 buffer_->params().compressed = !buffer_->params().compressed;
1340                 break;
1341
1342         default:
1343                 return false;
1344         }
1345
1346         return true;
1347 }
1348
1349
1350 void BufferView::Pimpl::updateMetrics(bool singlepar)
1351 {
1352         // Remove old position cache
1353         theCoords.clear();
1354         BufferView & bv = *bv_;
1355         LyXText * const text = bv.text();
1356         lyx::pit_type size = int(text->paragraphs().size());
1357
1358         if (anchor_ref_ > int(text->paragraphs().size() - 1)) {
1359                 anchor_ref_ = int(text->paragraphs().size() - 1);
1360                 offset_ref_ = 0;
1361         }
1362
1363         lyx::pit_type const pit = anchor_ref_;
1364         int pit1 = pit;
1365         int pit2 = pit;
1366         size_t const npit = text->paragraphs().size();
1367
1368         // Rebreak anchor paragraph. In Single Paragraph mode, rebreak only
1369         // the (main text, not inset!) paragraph containing the cursor.
1370         // (if this paragraph contains insets etc., rebreaking will
1371         // recursively descend)
1372         if (!singlepar || pit == cursor_.bottom().pit())
1373                 text->redoParagraph(pit);
1374         int y0 = text->getPar(pit).ascent() - offset_ref_;
1375
1376         // Redo paragraphs above anchor if necessary; again, in Single Par
1377         // mode, only if we encounter the (main text) one having the cursor.
1378         int y1 = y0;
1379         while (y1 > 0 && pit1 > 0) {
1380                 y1 -= text->getPar(pit1).ascent();
1381                 --pit1;
1382                 if (!singlepar || pit1 == cursor_.bottom().pit())
1383                         text->redoParagraph(pit1);
1384                 y1 -= text->getPar(pit1).descent();
1385         }
1386
1387
1388         // Take care of ascent of first line
1389         y1 -= text->getPar(pit1).ascent();
1390
1391         // Normalize anchor for next time
1392         anchor_ref_ = pit1;
1393         offset_ref_ = -y1;
1394
1395         // Grey at the beginning is ugly
1396         if (pit1 == 0 && y1 > 0) {
1397                 y0 -= y1;
1398                 y1 = 0;
1399                 anchor_ref_ = 0;
1400         }
1401
1402         // Redo paragraphs below the anchor if necessary. Single par mode:
1403         // only the one containing the cursor if encountered.
1404         int y2 = y0;
1405         while (y2 < bv.workHeight() && pit2 < int(npit) - 1) {
1406                 y2 += text->getPar(pit2).descent();
1407                 ++pit2;
1408                 if (!singlepar || pit2 == cursor_.bottom().pit())
1409                         text->redoParagraph(pit2);
1410                 y2 += text->getPar(pit2).ascent();
1411         }
1412
1413         // Take care of descent of last line
1414         y2 += text->getPar(pit2).descent();
1415
1416         // The coordinates of all these paragraphs are correct, cache them
1417         int y = y1;
1418         CoordCache::InnerParPosCache & parPos = theCoords.parPos()[text];
1419         for (lyx::pit_type pit = pit1; pit <= pit2; ++pit) {
1420                 Paragraph & par = text->getPar(pit);
1421                 y += par.ascent();
1422                 parPos[pit] = Point(0, y);
1423                 if (singlepar && pit == cursor_.bottom().pit()) {
1424                         // In Single Paragraph mode, collect here the
1425                         // y1 and y2 of the (one) paragraph the cursor is in
1426                         y1 = y - par.ascent();
1427                         y2 = y + par.descent();
1428                 }
1429                 y += par.descent();
1430         }
1431
1432         if (singlepar) {
1433                 // collect cursor paragraph iter bounds
1434                 pit1 = cursor_.bottom().pit();
1435                 pit2 = cursor_.bottom().pit();
1436         }
1437
1438         lyxerr[Debug::DEBUG]
1439                 << BOOST_CURRENT_FUNCTION
1440                 << " y1: " << y1
1441                 << " y2: " << y2
1442                 << " pit1: " << pit1
1443                 << " pit2: " << pit2
1444                 << " npit: " << npit
1445                 << " singlepar: " << singlepar
1446                 << "size: " << size
1447                 << endl;
1448
1449         metrics_info_ = ViewMetricsInfo(pit1, pit2, y1, y2, singlepar, size);
1450 }