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