src/BufferView_pimpl.C

   1 /**
   2  * \file BufferView_pimpl.C
   3  * Copyright 2002 the LyX Team
   4  * Read the file COPYING
   5  *
   6  * \author Lars Gullik Bjønnes
   7  * \author various
   8  */
   9
  10 #include <config.h>
  11
  12 #include "BufferView_pimpl.h"
  13 #include "bufferlist.h"
  14 #include "buffer.h"
  15 #include "buffer_funcs.h"
  16 #include "bufferview_funcs.h"
  17 #include "lfuns.h"
  18 #include "debug.h"
  19 #include "factory.h"
  20 #include "FloatList.h"
  21 #include "funcrequest.h"
  22 #include "gettext.h"
  23 #include "intl.h"
  24 #include "iterators.h"
  25 #include "Lsstream.h"
  26 #include "lyx_cb.h" // added for Dispatch functions
  27 #include "lyx_main.h"
  28 #include "lyxfind.h"
  29 #include "lyxfunc.h"
  30 #include "lyxtext.h"
  31 #include "lyxrc.h"
  32 #include "lyxrow.h"
  33 #include "lastfiles.h"
  34 #include "paragraph.h"
  35 #include "ParagraphParameters.h"
  36 #include "TextCache.h"
  37 #include "undo_funcs.h"
  38
  39 #include "insets/insetfloatlist.h"
  40 #include "insets/insetgraphics.h"
  41 #include "insets/insetinclude.h"
  42 #include "insets/insetref.h"
  43 #include "insets/insettext.h"
  44
  45 #include "frontends/Alert.h"
  46 #include "frontends/Dialogs.h"
  47 #include "frontends/FileDialog.h"
  48 #include "frontends/LyXView.h"
  49 #include "frontends/LyXScreenFactory.h"
  50 #include "frontends/mouse_state.h"
  51 #include "frontends/screen.h"
  52 #include "frontends/WorkArea.h"
  53 #include "frontends/WorkAreaFactory.h"
  54
  55 #include "mathed/formulabase.h"
  56
  57 #include "graphics/Previews.h"
  58
  59 #include "support/LAssert.h"
  60 #include "support/tostr.h"
  61 #include "support/filetools.h"
  62 #include "support/path_defines.h"
  63
  64 #include <boost/bind.hpp>
  65 #include <boost/signals/connection.hpp>
  66
  67 #include <unistd.h>
  68 #include <sys/wait.h>
  69
  70
  71 using std::vector;
  72 using std::find_if;
  73 using std::find;
  74 using std::pair;
  75 using std::endl;
  76 using std::make_pair;
  77 using std::min;
  78
  79 using lyx::pos_type;
  80 using namespace lyx::support;
  81 using namespace bv_funcs;
  82
  83 extern BufferList bufferlist;
  84
  85
  86 namespace {
  87
  88 unsigned int const saved_positions_num = 20;
  89
  90 // All the below connection objects are needed because of a bug in some
  91 // versions of GCC (<=2.96 are on the suspects list.) By having and assigning
  92 // to these connections we avoid a segfault upon startup, and also at exit.
  93 // (Lgb)
  94
  95 boost::signals::connection dispatchcon;
  96 boost::signals::connection timecon;
  97 boost::signals::connection doccon;
  98 boost::signals::connection resizecon;
  99 boost::signals::connection kpresscon;
 100 boost::signals::connection selectioncon;
 101 boost::signals::connection lostcon;
 102
 103
 104 } // anon namespace
 105
 106
 107 BufferView::Pimpl::Pimpl(BufferView * bv, LyXView * owner,
 108              int xpos, int ypos, int width, int height)
 109         : bv_(bv), owner_(owner), buffer_(0), cursor_timeout(400),
 110           using_xterm_cursor(false)
 111 {
 112         workarea_.reset(WorkAreaFactory::create(xpos, ypos, width, height));
 113         screen_.reset(LyXScreenFactory::create(workarea()));
 114
 115         // Setup the signals
 116         doccon = workarea().scrollDocView
 117                 .connect(boost::bind(&BufferView::Pimpl::scrollDocView, this, _1));
 118         resizecon = workarea().workAreaResize
 119                 .connect(boost::bind(&BufferView::Pimpl::workAreaResize, this));
 120         dispatchcon = workarea().dispatch
 121                 .connect(boost::bind(&BufferView::Pimpl::workAreaDispatch, this, _1));
 122         kpresscon = workarea().workAreaKeyPress
 123                 .connect(boost::bind(&BufferView::Pimpl::workAreaKeyPress, this, _1, _2));
 124         selectioncon = workarea().selectionRequested
 125                 .connect(boost::bind(&BufferView::Pimpl::selectionRequested, this));
 126         lostcon = workarea().selectionLost
 127                 .connect(boost::bind(&BufferView::Pimpl::selectionLost, this));
 128
 129         timecon = cursor_timeout.timeout
 130                 .connect(boost::bind(&BufferView::Pimpl::cursorToggle, this));
 131         cursor_timeout.start();
 132         saved_positions.resize(saved_positions_num);
 133 }
 134
 135
 136 void BufferView::Pimpl::addError(ErrorItem const & ei)
 137 {
 138         errorlist_.push_back(ei);
 139 }
 140
 141
 142 void BufferView::Pimpl::showReadonly(bool)
 143 {
 144         owner_->updateWindowTitle();
 145         owner_->getDialogs().updateBufferDependent(false);
 146 }
 147
 148
 149 void BufferView::Pimpl::connectBuffer(Buffer & buf)
 150 {
 151         if (errorConnection_.connected())
 152                 disconnectBuffer();
 153
 154         errorConnection_ = buf.error.connect(boost::bind(&BufferView::Pimpl::addError, this, _1));
 155         messageConnection_ = buf.message.connect(boost::bind(&LyXView::message, owner_, _1));
 156         busyConnection_ = buf.busy.connect(boost::bind(&LyXView::busy, owner_, _1));
 157         titleConnection_ = buf.updateTitles.connect(boost::bind(&LyXView::updateWindowTitle, owner_));
 158         timerConnection_ = buf.resetAutosaveTimers.connect(boost::bind(&LyXView::resetAutosaveTimer, owner_));
 159         readonlyConnection_ = buf.readonly.connect(boost::bind(&BufferView::Pimpl::showReadonly, this, _1));
 160         closingConnection_ = buf.closing.connect(boost::bind(&BufferView::Pimpl::buffer, this, (Buffer *)0));
 161 }
 162
 163
 164 void BufferView::Pimpl::disconnectBuffer()
 165 {
 166         errorConnection_.disconnect();
 167         messageConnection_.disconnect();
 168         busyConnection_.disconnect();
 169         titleConnection_.disconnect();
 170         timerConnection_.disconnect();
 171         readonlyConnection_.disconnect();
 172         closingConnection_.disconnect();
 173 }
 174
 175
 176 bool BufferView::Pimpl::newFile(string const & filename,
 177                                 string const & tname,
 178                                 bool isNamed)
 179 {
 180         Buffer * b = ::newFile(filename, tname, isNamed);
 181         buffer(b);
 182         return true;
 183 }
 184
 185
 186 bool BufferView::Pimpl::loadLyXFile(string const & filename, bool tolastfiles)
 187 {
 188         // get absolute path of file and add ".lyx" to the filename if
 189         // necessary
 190         string s = FileSearch(string(), filename, "lyx");
 191
 192         bool const found = !s.empty();
 193
 194         if (!found)
 195                 s = filename;
 196
 197         // file already open?
 198         if (bufferlist.exists(s)) {
 199                 string const file = MakeDisplayPath(s, 20);
 200                 string text = bformat(_("The document %1$s is already "
 201                                         "loaded.\n\nDo you want to revert "
 202                                         "to the saved version?"), file);
 203                 int const ret = Alert::prompt(_("Revert to saved document?"),
 204                         text, 0, 1,  _("&Revert"), _("&Switch to document"));
 205
 206                 if (ret != 0) {
 207                         buffer(bufferlist.getBuffer(s));
 208                         return true;
 209                 } else {
 210                         // FIXME: should be LFUN_REVERT
 211                         if (!bufferlist.close(bufferlist.getBuffer(s), false))
 212                                 return false;
 213                         // Fall through to new load. (Asger)
 214                 }
 215         }
 216
 217         Buffer * b;
 218
 219         if (found) {
 220                 b = bufferlist.newBuffer(s);
 221                 connectBuffer(*b);
 222                 if (!::loadLyXFile(b, s)) {
 223                         bufferlist.release(b);
 224                         return false;
 225                 }
 226         } else {
 227                 string text = bformat(_("The document %1$s does not yet "
 228                                         "exist.\n\nDo you want to create "
 229                                         "a new document?"), s);
 230                 int const ret = Alert::prompt(_("Create new document?"),
 231                          text, 0, 1, _("&Create"), _("Cancel"));
 232
 233                 if (ret == 0)
 234                         b = ::newFile(s, string(), true);
 235                 else
 236                         return false;
 237         }
 238
 239         buffer(b);
 240         bv_->showErrorList(_("Parse"));
 241
 242         if (tolastfiles)
 243                 lastfiles->newFile(b->fileName());
 244
 245         return true;
 246 }
 247
 248
 249 WorkArea & BufferView::Pimpl::workarea() const
 250 {
 251         return *workarea_.get();
 252 }
 253
 254
 255 LyXScreen & BufferView::Pimpl::screen() const
 256 {
 257         return *screen_.get();
 258 }
 259
 260
 261 Painter & BufferView::Pimpl::painter() const
 262 {
 263         return workarea().getPainter();
 264 }
 265
 266
 267 void BufferView::Pimpl::buffer(Buffer * b)
 268 {
 269         lyxerr[Debug::INFO] << "Setting buffer in BufferView ("
 270                             << b << ')' << endl;
 271         if (buffer_) {
 272                 disconnectBuffer();
 273                 // Put the old text into the TextCache, but
 274                 // only if the buffer is still loaded.
 275                 // Also set the owner of the test to 0
 276                 //              bv_->text->owner(0);
 277                 textcache.add(buffer_, workarea().workWidth(), bv_->text);
 278                 if (lyxerr.debugging())
 279                         textcache.show(lyxerr, "BufferView::buffer");
 280
 281                 bv_->text = 0;
 282         }
 283
 284         // set current buffer
 285         buffer_ = b;
 286
 287         // if we're quitting lyx, don't bother updating stuff
 288         if (quitting)
 289                 return;
 290
 291         // if we are closing the buffer, use the first buffer as current
 292         if (!buffer_)
 293                 buffer_ = bufferlist.first();
 294
 295         if (buffer_) {
 296                 lyxerr[Debug::INFO] << "Buffer addr: " << buffer_ << endl;
 297                 connectBuffer(*buffer_);
 298
 299                 // If we don't have a text object for this, we make one
 300                 if (bv_->text == 0)
 301                         resizeCurrentBuffer();
 302
 303                 // FIXME: needed when ?
 304                 bv_->text->top_y(screen().topCursorVisible(bv_->text));
 305
 306                 // Buffer-dependent dialogs should be updated or
 307                 // hidden. This should go here because some dialogs (eg ToC)
 308                 // require bv_->text.
 309                 owner_->getDialogs().updateBufferDependent(true);
 310         } else {
 311                 lyxerr[Debug::INFO] << "  No Buffer!" << endl;
 312                 owner_->getDialogs().hideBufferDependent();
 313
 314                 // Also remove all remaining text's from the testcache.
 315                 // (there should not be any!) (if there is any it is a
 316                 // bug!)
 317                 if (lyxerr.debugging())
 318                         textcache.show(lyxerr, "buffer delete all");
 319                 textcache.clear();
 320         }
 321
 322         repaint();
 323         updateScrollbar();
 324         owner_->updateMenubar();
 325         owner_->updateToolbar();
 326         owner_->updateLayoutChoice();
 327         owner_->updateWindowTitle();
 328
 329         if (buffer_) {
 330                 // Don't forget to update the Layout
 331                 string const layoutname =
 332                         bv_->text->cursor.par()->layout()->name();
 333                 owner_->setLayout(layoutname);
 334         }
 335
 336         if (lyx::graphics::Previews::activated() && buffer_)
 337                 lyx::graphics::Previews::get().generateBufferPreviews(*buffer_);
 338 }
 339
 340
 341 bool BufferView::Pimpl::fitCursor()
 342 {
 343         bool ret;
 344
 345         if (bv_->theLockingInset()) {
 346                 bv_->theLockingInset()->fitInsetCursor(bv_);
 347                 ret = true;
 348         } else {
 349                 ret = screen().fitCursor(bv_->text, bv_);
 350         }
 351
 352         dispatch(FuncRequest(LFUN_PARAGRAPH_UPDATE));
 353
 354         // We need to always update, in case we did a
 355         // paste and we stayed anchored to a row, but
 356         // the actual height of the doc changed ...
 357         updateScrollbar();
 358         return ret;
 359 }
 360
 361
 362 void BufferView::Pimpl::redoCurrentBuffer()
 363 {
 364         lyxerr[Debug::INFO] << "BufferView::redoCurrentBuffer" << endl;
 365         if (buffer_ && bv_->text) {
 366                 resizeCurrentBuffer();
 367                 updateScrollbar();
 368                 owner_->updateLayoutChoice();
 369                 repaint();
 370         }
 371 }
 372
 373
 374 int BufferView::Pimpl::resizeCurrentBuffer()
 375 {
 376         lyxerr[Debug::INFO] << "resizeCurrentBuffer" << endl;
 377
 378         ParagraphList::iterator par;
 379         ParagraphList::iterator selstartpar;
 380         ParagraphList::iterator selendpar;
 381         UpdatableInset * the_locking_inset = 0;
 382
 383         pos_type pos = 0;
 384         pos_type selstartpos = 0;
 385         pos_type selendpos = 0;
 386         bool selection = false;
 387         bool mark_set  = false;
 388
 389         owner_->busy(true);
 390
 391         owner_->message(_("Formatting document..."));
 392
 393         if (bv_->text) {
 394                 par = bv_->text->cursor.par();
 395                 pos = bv_->text->cursor.pos();
 396                 selstartpar = bv_->text->selection.start.par();
 397                 selstartpos = bv_->text->selection.start.pos();
 398                 selendpar = bv_->text->selection.end.par();
 399                 selendpos = bv_->text->selection.end.pos();
 400                 selection = bv_->text->selection.set();
 401                 mark_set = bv_->text->selection.mark();
 402                 the_locking_inset = bv_->theLockingInset();
 403                 resizeInsets(bv_);
 404                 bv_->text->fullRebreak();
 405                 update();
 406         } else {
 407                 lyxerr << "text not available!\n";
 408                 // See if we have a text in TextCache that fits
 409                 // the new buffer_ with the correct width.
 410                 bv_->text = textcache.findFit(buffer_, workarea().workWidth());
 411                 if (bv_->text) {
 412                         lyxerr << "text in cache!\n";
 413                         if (lyxerr.debugging()) {
 414                                 lyxerr << "Found a LyXText that fits:\n";
 415                                 textcache.show(lyxerr, make_pair(buffer_, make_pair(workarea().workWidth(), bv_->text)));
 416                         }
 417                         // Set the owner of the newly found text
 418                         //      bv_->text->owner(bv_);
 419                         if (lyxerr.debugging())
 420                                 textcache.show(lyxerr, "resizeCurrentBuffer");
 421
 422                         resizeInsets(bv_);
 423                 } else {
 424                         lyxerr << "no text in cache!\n";
 425                         bv_->text = new LyXText(bv_);
 426                         resizeInsets(bv_);
 427                         bv_->text->init(bv_);
 428                 }
 429
 430                 par = bv_->text->ownerParagraphs().end();
 431                 selstartpar = bv_->text->ownerParagraphs().end();
 432                 selendpar = bv_->text->ownerParagraphs().end();
 433         }
 434
 435         if (par != bv_->text->ownerParagraphs().end()) {
 436                 bv_->text->selection.set(true);
 437                 // At this point just to avoid the Delete-Empty-Paragraph-
 438                 // Mechanism when setting the cursor.
 439                 bv_->text->selection.mark(mark_set);
 440                 if (selection) {
 441                         bv_->text->setCursor(selstartpar, selstartpos);
 442                         bv_->text->selection.cursor = bv_->text->cursor;
 443                         bv_->text->setCursor(selendpar, selendpos);
 444                         bv_->text->setSelection();
 445                         bv_->text->setCursor(par, pos);
 446                 } else {
 447                         bv_->text->setCursor(par, pos);
 448                         bv_->text->selection.cursor = bv_->text->cursor;
 449                         bv_->text->selection.set(false);
 450                 }
 451                 // remake the inset locking
 452                 bv_->theLockingInset(the_locking_inset);
 453         }
 454
 455         bv_->text->top_y(screen().topCursorVisible(bv_->text));
 456
 457         switchKeyMap();
 458         owner_->busy(false);
 459
 460         // reset the "Formatting..." message
 461         owner_->clearMessage();
 462
 463         updateScrollbar();
 464
 465         return 0;
 466 }
 467
 468
 469 void BufferView::Pimpl::repaint()
 470 {
 471         // Regenerate the screen.
 472         screen().redraw(bv_, bv_->text);
 473 }
 474
 475
 476 void BufferView::Pimpl::updateScrollbar()
 477 {
 478         if (!bv_->text) {
 479                 lyxerr[Debug::GUI] << "no text in updateScrollbar" << endl;
 480                 workarea().setScrollbarParams(0, 0, 0);
 481                 return;
 482         }
 483
 484         LyXText const & t = *bv_->text;
 485
 486         lyxerr[Debug::GUI] << "Updating scrollbar: h " << t.height << ", top_y() "
 487                 << t.top_y() << ", default height " << defaultRowHeight() << endl;
 488
 489         workarea().setScrollbarParams(t.height, t.top_y(), defaultRowHeight());
 490 }
 491
 492
 493 void BufferView::Pimpl::scrollDocView(int value)
 494 {
 495         lyxerr[Debug::GUI] << "scrollDocView of " << value << endl;
 496
 497         if (!buffer_)
 498                 return;
 499
 500         screen().hideCursor();
 501
 502         screen().draw(bv_->text, bv_, value);
 503
 504         if (!lyxrc.cursor_follows_scrollbar)
 505                 return;
 506
 507         LyXText * vbt = bv_->text;
 508
 509         int const height = defaultRowHeight();
 510         int const first = static_cast<int>((bv_->text->top_y() + height));
 511         int const last = static_cast<int>((bv_->text->top_y() + workarea().workHeight() - height));
 512
 513         if (vbt->cursor.y() < first)
 514                 vbt->setCursorFromCoordinates(0, first);
 515         else if (vbt->cursor.y() > last)
 516                 vbt->setCursorFromCoordinates(0, last);
 517
 518         owner_->updateLayoutChoice();
 519 }
 520
 521
 522 void BufferView::Pimpl::scroll(int lines)
 523 {
 524         if (!buffer_) {
 525                 return;
 526         }
 527
 528         LyXText const * t = bv_->text;
 529         int const line_height = defaultRowHeight();
 530
 531         // The new absolute coordinate
 532         int new_top_y = t->top_y() + lines * line_height;
 533
 534         // Restrict to a valid value
 535         new_top_y = std::min(t->height - 4 * line_height, new_top_y);
 536         new_top_y = std::max(0, new_top_y);
 537
 538         scrollDocView(new_top_y);
 539
 540         // Update the scrollbar.
 541         workarea().setScrollbarParams(t->height, t->top_y(), defaultRowHeight());
 542 }
 543
 544
 545 void BufferView::Pimpl::workAreaKeyPress(LyXKeySymPtr key,
 546                                          key_modifier::state state)
 547 {
 548         bv_->owner()->getLyXFunc().processKeySym(key, state);
 549
 550         /* This is perhaps a bit of a hack. When we move
 551          * around, or type, it's nice to be able to see
 552          * the cursor immediately after the keypress. So
 553          * we reset the toggle timeout and force the visibility
 554          * of the cursor. Note we cannot do this inside
 555          * dispatch() itself, because that's called recursively.
 556          */
 557         if (available()) {
 558                 cursor_timeout.restart();
 559                 screen().showCursor(*bv_);
 560         }
 561 }
 562
 563
 564 void BufferView::Pimpl::selectionRequested()
 565 {
 566         static string sel;
 567
 568         if (!available())
 569                 return;
 570
 571         LyXText * text = bv_->getLyXText();
 572
 573         if (text->selection.set() &&
 574                 (!bv_->text->xsel_cache.set() ||
 575                  text->selection.start != bv_->text->xsel_cache.start ||
 576                  text->selection.end != bv_->text->xsel_cache.end))
 577         {
 578                 bv_->text->xsel_cache = text->selection;
 579                 sel = text->selectionAsString(bv_->buffer(), false);
 580         } else if (!text->selection.set()) {
 581                 sel = string();
 582                 bv_->text->xsel_cache.set(false);
 583         }
 584         if (!sel.empty()) {
 585                 workarea().putClipboard(sel);
 586         }
 587 }
 588
 589
 590 void BufferView::Pimpl::selectionLost()
 591 {
 592         if (available()) {
 593                 screen().hideCursor();
 594                 toggleSelection();
 595                 bv_->getLyXText()->clearSelection();
 596                 bv_->text->xsel_cache.set(false);
 597         }
 598 }
 599
 600
 601 void BufferView::Pimpl::workAreaResize()
 602 {
 603         static int work_area_width;
 604         static int work_area_height;
 605
 606         bool const widthChange = workarea().workWidth() != work_area_width;
 607         bool const heightChange = workarea().workHeight() != work_area_height;
 608
 609         // update from work area
 610         work_area_width = workarea().workWidth();
 611         work_area_height = workarea().workHeight();
 612
 613         if (buffer_ != 0) {
 614                 if (widthChange) {
 615                         // The visible LyXView need a resize
 616                         resizeCurrentBuffer();
 617
 618                         // Remove all texts from the textcache
 619                         // This is not _really_ what we want to do. What
 620                         // we really want to do is to delete in textcache
 621                         // that does not have a BufferView with matching
 622                         // width, but as long as we have only one BufferView
 623                         // deleting all gives the same result.
 624                         if (lyxerr.debugging())
 625                                 textcache.show(lyxerr, "Expose delete all");
 626                         textcache.clear();
 627                         // FIXME: this is already done in resizeCurrentBuffer() ??
 628                         resizeInsets(bv_);
 629                 } else if (heightChange) {
 630                         // fitCursor() ensures we don't jump back
 631                         // to the start of the document on vertical
 632                         // resize
 633                         fitCursor();
 634                 }
 635         }
 636
 637         if (widthChange || heightChange) {
 638                 repaint();
 639         }
 640
 641         // always make sure that the scrollbar is sane.
 642         updateScrollbar();
 643         owner_->updateLayoutChoice();
 644         return;
 645 }
 646
 647
 648 void BufferView::Pimpl::update()
 649 {
 650         lyxerr << "BufferView::update()\n";
 651         screen().update(*bv_);
 652         bv_->text->clearPaint();
 653 }
 654
 655
 656 void BufferView::Pimpl::update(LyXText * text, BufferView::UpdateCodes f)
 657 {
 658         if (!text->selection.set() && (f & SELECT)) {
 659                 text->selection.cursor = text->cursor;
 660         }
 661
 662         text->partialRebreak();
 663
 664         if (text->inset_owner) {
 665                 text->inset_owner->setUpdateStatus(InsetText::NONE);
 666                 updateInset(text->inset_owner);
 667         } else {
 668                 update();
 669         }
 670 }
 671
 672
 673 void BufferView::Pimpl::update(BufferView::UpdateCodes f)
 674 {
 675         LyXText * text = bv_->text;
 676
 677         if (!text->selection.set() && (f & SELECT)) {
 678                 text->selection.cursor = text->cursor;
 679         }
 680
 681         text->partialRebreak();
 682
 683         if (text->inset_owner) {
 684                 text->inset_owner->setUpdateStatus(InsetText::NONE);
 685                 updateInset(text->inset_owner);
 686         } else {
 687                 update();
 688         }
 689 }
 690
 691
 692 // Callback for cursor timer
 693 void BufferView::Pimpl::cursorToggle()
 694 {
 695         if (!buffer_) {
 696                 cursor_timeout.restart();
 697                 return;
 698         }
 699
 700         screen().toggleCursor(*bv_);
 701
 702         cursor_timeout.restart();
 703 }
 704
 705
 706 bool BufferView::Pimpl::available() const
 707 {
 708         if (buffer_ && bv_->text)
 709                 return true;
 710         return false;
 711 }
 712
 713
 714 Change const BufferView::Pimpl::getCurrentChange()
 715 {
 716         if (!bv_->buffer()->params.tracking_changes)
 717                 return Change(Change::UNCHANGED);
 718
 719         LyXText * t(bv_->getLyXText());
 720
 721         if (!t->selection.set())
 722                 return Change(Change::UNCHANGED);
 723
 724         LyXCursor const & cur(t->selection.start);
 725         return cur.par()->lookupChangeFull(cur.pos());
 726 }
 727
 728
 729 void BufferView::Pimpl::beforeChange(LyXText * text)
 730 {
 731         toggleSelection();
 732         text->clearSelection();
 733 }
 734
 735
 736 void BufferView::Pimpl::savePosition(unsigned int i)
 737 {
 738         if (i >= saved_positions_num)
 739                 return;
 740         saved_positions[i] = Position(buffer_->fileName(),
 741                                       bv_->text->cursor.par()->id(),
 742                                       bv_->text->cursor.pos());
 743         if (i > 0)
 744                 owner_->message(bformat(_("Saved bookmark %1$s"), tostr(i)));
 745 }
 746
 747
 748 void BufferView::Pimpl::restorePosition(unsigned int i)
 749 {
 750         if (i >= saved_positions_num)
 751                 return;
 752
 753         string const fname = saved_positions[i].filename;
 754
 755         beforeChange(bv_->text);
 756
 757         if (fname != buffer_->fileName()) {
 758                 Buffer * b;
 759                 if (bufferlist.exists(fname))
 760                         b = bufferlist.getBuffer(fname);
 761                 else {
 762                         b = bufferlist.newBuffer(fname);
 763                         ::loadLyXFile(b, fname); // don't ask, just load it
 764                 }
 765                 if (b != 0)
 766                         buffer(b);
 767         }
 768
 769         ParIterator par = buffer_->getParFromID(saved_positions[i].par_id);
 770         if (par == buffer_->par_iterator_end())
 771                 return;
 772
 773         bv_->text->setCursor(par.pit(),
 774                              min(par->size(), saved_positions[i].par_pos));
 775
 776         update(BufferView::SELECT);
 777         if (i > 0)
 778                 owner_->message(bformat(_("Moved to bookmark %1$s"), tostr(i)));
 779 }
 780
 781
 782 bool BufferView::Pimpl::isSavedPosition(unsigned int i)
 783 {
 784         if (i >= saved_positions_num)
 785                 return false;
 786
 787         return !saved_positions[i].filename.empty();
 788 }
 789
 790
 791 void BufferView::Pimpl::switchKeyMap()
 792 {
 793         if (!lyxrc.rtl_support)
 794                 return;
 795
 796         LyXText * text = bv_->getLyXText();
 797         if (text->real_current_font.isRightToLeft()
 798             && !(bv_->theLockingInset()
 799                  && bv_->theLockingInset()->lyxCode() == InsetOld::ERT_CODE))
 800         {
 801                 if (owner_->getIntl().keymap == Intl::PRIMARY)
 802                         owner_->getIntl().KeyMapSec();
 803         } else {
 804                 if (owner_->getIntl().keymap == Intl::SECONDARY)
 805                         owner_->getIntl().KeyMapPrim();
 806         }
 807 }
 808
 809
 810 void BufferView::Pimpl::insetUnlock()
 811 {
 812         if (bv_->theLockingInset()) {
 813                 bv_->theLockingInset()->insetUnlock(bv_);
 814                 bv_->theLockingInset(0);
 815                 finishUndo();
 816         }
 817 }
 818
 819
 820 void BufferView::Pimpl::toggleSelection(bool b)
 821 {
 822         screen().toggleSelection(bv_->text, bv_, b);
 823 }
 824
 825
 826 void BufferView::Pimpl::center()
 827 {
 828         LyXText * t = bv_->text;
 829
 830         beforeChange(t);
 831         int const half_height = workarea().workHeight() / 2;
 832         int new_y = 0;
 833
 834         if (t->cursor.y() > half_height) {
 835                 new_y = t->cursor.y() - half_height;
 836         }
 837
 838         // FIXME: look at this comment again ...
 839
 840         // FIXME: can we do this w/o calling screen directly ?
 841         // This updates top_y() but means the fitCursor() call
 842         // from the update(FITCUR) doesn't realise that we might
 843         // have moved (e.g. from GOTOPARAGRAPH), so doesn't cause
 844         // the scrollbar to be updated as it should, so we have
 845         // to do it manually. Any operation that does a center()
 846         // and also might have moved top_y() must make sure to call
 847         // updateScrollbar() currently. Never mind that this is a
 848         // pretty obfuscated way of updating t->top_y()
 849         screen().draw(t, bv_, new_y);
 850
 851         update(BufferView::SELECT);
 852 }
 853
 854
 855 void BufferView::Pimpl::stuffClipboard(string const & stuff) const
 856 {
 857         workarea().putClipboard(stuff);
 858 }
 859
 860
 861 /*
 862  * Dispatch functions for actions which can be valid for BufferView->text
 863  * and/or InsetText->text!!!
 864  */
 865
 866
 867 InsetOld * BufferView::Pimpl::getInsetByCode(InsetOld::Code code)
 868 {
 869 #if 0
 870         LyXCursor cursor = bv_->getLyXText()->cursor;
 871         Buffer::inset_iterator it =
 872                 find_if(Buffer::inset_iterator(
 873                         cursor.par(), cursor.pos()),
 874                         buffer_->inset_iterator_end(),
 875                         lyx::compare_memfun(&Inset::lyxCode, code));
 876         return it != buffer_->inset_iterator_end() ? (*it) : 0;
 877 #else
 878         // Ok, this is a little bit too brute force but it
 879         // should work for now. Better infrastructure is comming. (Lgb)
 880
 881         Buffer * b = bv_->buffer();
 882         LyXCursor cursor = bv_->getLyXText()->cursor;
 883
 884         Buffer::inset_iterator beg = b->inset_iterator_begin();
 885         Buffer::inset_iterator end = b->inset_iterator_end();
 886
 887         bool cursor_par_seen = false;
 888
 889         for (; beg != end; ++beg) {
 890                 if (beg.getPar() == cursor.par()) {
 891                         cursor_par_seen = true;
 892                 }
 893                 if (cursor_par_seen) {
 894                         if (beg.getPar() == cursor.par()
 895                             && beg.getPos() >= cursor.pos()) {
 896                                 break;
 897                         } else if (beg.getPar() != cursor.par()) {
 898                                 break;
 899                         }
 900                 }
 901
 902         }
 903         if (beg != end) {
 904                 // Now find the first inset that matches code.
 905                 for (; beg != end; ++beg) {
 906                         if (beg->lyxCode() == code) {
 907                                 return &(*beg);
 908                         }
 909                 }
 910         }
 911         return 0;
 912 #endif
 913 }
 914
 915
 916 void BufferView::Pimpl::MenuInsertLyXFile(string const & filen)
 917 {
 918         string filename = filen;
 919
 920         if (filename.empty()) {
 921                 // Launch a file browser
 922                 string initpath = lyxrc.document_path;
 923
 924                 if (available()) {
 925                         string const trypath = owner_->buffer()->filePath();
 926                         // If directory is writeable, use this as default.
 927                         if (IsDirWriteable(trypath))
 928                                 initpath = trypath;
 929                 }
 930
 931                 FileDialog fileDlg(_("Select LyX document to insert"),
 932                         LFUN_FILE_INSERT,
 933                         make_pair(string(_("Documents|#o#O")),
 934                                   string(lyxrc.document_path)),
 935                         make_pair(string(_("Examples|#E#e")),
 936                                   string(AddPath(system_lyxdir(), "examples"))));
 937
 938                 FileDialog::Result result =
 939                         fileDlg.open(initpath,
 940                                        _("*.lyx| LyX Documents (*.lyx)"));
 941
 942                 if (result.first == FileDialog::Later)
 943                         return;
 944
 945                 filename = result.second;
 946
 947                 // check selected filename
 948                 if (filename.empty()) {
 949                         owner_->message(_("Canceled."));
 950                         return;
 951                 }
 952         }
 953
 954         // get absolute path of file and add ".lyx" to the filename if
 955         // necessary
 956         filename = FileSearch(string(), filename, "lyx");
 957
 958         string const disp_fn = MakeDisplayPath(filename);
 959         owner_->message(bformat(_("Inserting document %1$s..."), disp_fn));
 960         if (bv_->insertLyXFile(filename))
 961                 owner_->message(bformat(_("Document %1$s inserted."),
 962                                         disp_fn));
 963         else
 964                 owner_->message(bformat(_("Could not insert document %1$s"),
 965                                         disp_fn));
 966 }
 967
 968
 969 void BufferView::Pimpl::trackChanges()
 970 {
 971         Buffer * buf(bv_->buffer());
 972         bool const tracking(buf->params.tracking_changes);
 973
 974         if (!tracking) {
 975                 ParIterator const end = buf->par_iterator_end();
 976                 for (ParIterator it = buf->par_iterator_begin(); it != end; ++it)
 977                         it->trackChanges();
 978                 buf->params.tracking_changes = true;
 979
 980                 // we cannot allow undos beyond the freeze point
 981                 buf->undostack.clear();
 982         } else {
 983                 update(BufferView::SELECT);
 984                 bv_->text->setCursor(buf->paragraphs.begin(), 0);
 985 #warning changes FIXME
 986                 //moveCursorUpdate(false);
 987
 988                 bool found = lyx::find::findNextChange(bv_);
 989                 if (found) {
 990                         owner_->getDialogs().show("changes");
 991                         return;
 992                 }
 993
 994                 ParIterator const end = buf->par_iterator_end();
 995                 for (ParIterator it = buf->par_iterator_begin(); it != end; ++it)
 996                         it->untrackChanges();
 997                 buf->params.tracking_changes = false;
 998         }
 999
1000         buf->redostack.clear();
1001 }
1002
1003
1004 // Doesn't go through lyxfunc, so we need to update the
1005 // layout choice etc. ourselves
1006 bool BufferView::Pimpl::workAreaDispatch(FuncRequest const & ev_in)
1007 {
1008         // e.g. Qt mouse press when no buffer
1009         if (!available())
1010                 return false;
1011
1012         screen().hideCursor();
1013
1014         // Make sure that the cached BufferView is correct.
1015         FuncRequest ev = ev_in;
1016         ev.setView(bv_);
1017
1018         bool const res = dispatch(ev);
1019
1020         // see workAreaKeyPress
1021         cursor_timeout.restart();
1022         screen().showCursor(*bv_);
1023
1024         // FIXME: we should skip these when selecting
1025         bv_->owner()->updateLayoutChoice();
1026         bv_->owner()->updateToolbar();
1027         bv_->fitCursor();
1028
1029         // slight hack: this is only called currently when
1030         // we clicked somewhere, so we force through the display
1031         // of the new status here.
1032         bv_->owner()->clearMessage();
1033
1034         return res;
1035 }
1036
1037
1038 bool BufferView::Pimpl::dispatch(FuncRequest const & ev_in)
1039 {
1040         // Make sure that the cached BufferView is correct.
1041         FuncRequest ev = ev_in;
1042         ev.setView(bv_);
1043
1044         lyxerr[Debug::ACTION] << "BufferView::Pimpl::Dispatch:"
1045                 << " action[" << ev.action << ']'
1046                 << " arg[" << ev.argument << ']'
1047                 << " x[" << ev.x << ']'
1048                 << " y[" << ev.y << ']'
1049                 << " button[" << ev.button() << ']'
1050                 << endl;
1051
1052         LyXTextClass const & tclass = buffer_->params.getLyXTextClass();
1053
1054         switch (ev.action) {
1055
1056         case LFUN_SCROLL_INSET:
1057                 // this is not handled here as this function is only active
1058                 // if we have a locking_inset and that one is (or contains)
1059                 // a tabular-inset
1060                 break;
1061
1062         case LFUN_FILE_INSERT:
1063                 MenuInsertLyXFile(ev.argument);
1064                 break;
1065
1066         case LFUN_FILE_INSERT_ASCII_PARA:
1067                 InsertAsciiFile(bv_, ev.argument, true);
1068                 break;
1069
1070         case LFUN_FILE_INSERT_ASCII:
1071                 InsertAsciiFile(bv_, ev.argument, false);
1072                 break;
1073
1074         case LFUN_LANGUAGE:
1075                 lang(bv_, ev.argument);
1076                 switchKeyMap();
1077                 owner_->view_state_changed();
1078                 break;
1079
1080         case LFUN_EMPH:
1081                 emph(bv_);
1082                 owner_->view_state_changed();
1083                 break;
1084
1085         case LFUN_BOLD:
1086                 bold(bv_);
1087                 owner_->view_state_changed();
1088                 break;
1089
1090         case LFUN_NOUN:
1091                 noun(bv_);
1092                 owner_->view_state_changed();
1093                 break;
1094
1095         case LFUN_CODE:
1096                 code(bv_);
1097                 owner_->view_state_changed();
1098                 break;
1099
1100         case LFUN_SANS:
1101                 sans(bv_);
1102                 owner_->view_state_changed();
1103                 break;
1104
1105         case LFUN_ROMAN:
1106                 roman(bv_);
1107                 owner_->view_state_changed();
1108                 break;
1109
1110         case LFUN_DEFAULT:
1111                 styleReset(bv_);
1112                 owner_->view_state_changed();
1113                 break;
1114
1115         case LFUN_UNDERLINE:
1116                 underline(bv_);
1117                 owner_->view_state_changed();
1118                 break;
1119
1120         case LFUN_FONT_SIZE:
1121                 fontSize(bv_, ev.argument);
1122                 owner_->view_state_changed();
1123                 break;
1124
1125         case LFUN_FONT_STATE:
1126                 owner_->getLyXFunc().setMessage(currentState(bv_));
1127                 break;
1128
1129         case LFUN_INSERT_LABEL: {
1130                 // Try and generate a valid label
1131                 string const contents = ev.argument.empty() ?
1132                         getPossibleLabel(*bv_) : ev.argument;
1133                 InsetCommandParams icp("label", contents);
1134                 string data = InsetCommandMailer::params2string("label", icp);
1135                 owner_->getDialogs().show("label", data, 0);
1136         }
1137         break;
1138
1139         case LFUN_BOOKMARK_SAVE:
1140                 savePosition(strToUnsignedInt(ev.argument));
1141                 break;
1142
1143         case LFUN_BOOKMARK_GOTO:
1144                 restorePosition(strToUnsignedInt(ev.argument));
1145                 break;
1146
1147         case LFUN_REF_GOTO: {
1148                 string label = ev.argument;
1149                 if (label.empty()) {
1150                         InsetRef * inset =
1151                                 static_cast<InsetRef*>(getInsetByCode(InsetOld::REF_CODE));
1152                         if (inset) {
1153                                 label = inset->getContents();
1154                                 savePosition(0);
1155                         }
1156                 }
1157
1158                 if (!label.empty())
1159                         bv_->gotoLabel(label);
1160         }
1161         break;
1162
1163         // --- accented characters ---------------------------
1164
1165         case LFUN_UMLAUT:
1166         case LFUN_CIRCUMFLEX:
1167         case LFUN_GRAVE:
1168         case LFUN_ACUTE:
1169         case LFUN_TILDE:
1170         case LFUN_CEDILLA:
1171         case LFUN_MACRON:
1172         case LFUN_DOT:
1173         case LFUN_UNDERDOT:
1174         case LFUN_UNDERBAR:
1175         case LFUN_CARON:
1176         case LFUN_SPECIAL_CARON:
1177         case LFUN_BREVE:
1178         case LFUN_TIE:
1179         case LFUN_HUNG_UMLAUT:
1180         case LFUN_CIRCLE:
1181         case LFUN_OGONEK:
1182                 if (ev.argument.empty()) {
1183                         // As always...
1184                         owner_->getLyXFunc().handleKeyFunc(ev.action);
1185                 } else {
1186                         owner_->getLyXFunc().handleKeyFunc(ev.action);
1187                         owner_->getIntl().getTransManager()
1188                                 .TranslateAndInsert(ev.argument[0], bv_->getLyXText());
1189                         update(bv_->getLyXText(), BufferView::SELECT);
1190                 }
1191                 break;
1192
1193         case LFUN_MATH_MACRO:
1194         case LFUN_MATH_DELIM:
1195         case LFUN_INSERT_MATRIX:
1196         case LFUN_INSERT_MATH:
1197         case LFUN_MATH_IMPORT_SELECTION: // Imports LaTeX from the X selection
1198         case LFUN_MATH_DISPLAY:          // Open or create a displayed math inset
1199         case LFUN_MATH_MODE:             // Open or create an inlined math inset
1200                 mathDispatch(ev);
1201                 break;
1202
1203         case LFUN_INSET_APPLY: {
1204                 string const name = ev.getArg(0);
1205
1206                 InsetBase * inset = owner_->getDialogs().getOpenInset(name);
1207                 if (inset) {
1208                         // This works both for 'original' and 'mathed' insets.
1209                         // Note that the localDispatch performs updateInset
1210                         // also.
1211                         FuncRequest fr(bv_, LFUN_INSET_MODIFY, ev.argument);
1212                         inset->localDispatch(fr);
1213                 } else {
1214                         FuncRequest fr(bv_, LFUN_INSET_INSERT, ev.argument);
1215                         dispatch(fr);
1216                 }
1217         }
1218         break;
1219
1220         case LFUN_INSET_INSERT: {
1221                 InsetOld * inset = createInset(ev);
1222                 if (inset && insertInset(inset)) {
1223                         updateInset(inset);
1224
1225                         string const name = ev.getArg(0);
1226                         if (name == "bibitem") {
1227                                 // We need to do a redraw because the maximum
1228                                 // InsetBibitem width could have changed
1229 #warning please check you mean repaint() not update(),
1230 #warning and whether the repaint() is needed at all
1231                                 bv_->repaint();
1232                                 bv_->fitCursor();
1233                         }
1234                 } else {
1235                         delete inset;
1236                 }
1237         }
1238         break;
1239
1240         case LFUN_FLOAT_LIST:
1241                 if (tclass.floats().typeExist(ev.argument)) {
1242                         InsetOld * inset = new InsetFloatList(ev.argument);
1243                         if (!insertInset(inset, tclass.defaultLayoutName()))
1244                                 delete inset;
1245                 } else {
1246                         lyxerr << "Non-existent float type: "
1247                                << ev.argument << endl;
1248                 }
1249                 break;
1250
1251         case LFUN_LAYOUT_PARAGRAPH: {
1252                 Paragraph const * par = &*bv_->getLyXText()->cursor.par();
1253                 if (!par)
1254                         break;
1255
1256                 string data;
1257                 params2string(*par, data);
1258
1259                 data = "show\n" + data;
1260                 bv_->owner()->getDialogs().show("paragraph", data);
1261                 break;
1262         }
1263
1264         case LFUN_PARAGRAPH_UPDATE: {
1265                 if (!bv_->owner()->getDialogs().visible("paragraph"))
1266                         break;
1267                 Paragraph const * par = &*bv_->getLyXText()->cursor.par();
1268                 if (!par)
1269                         break;
1270
1271                 string data;
1272                 params2string(*par, data);
1273
1274                 // Will the paragraph accept changes from the dialog?
1275                 InsetOld * const inset = par->inInset();
1276                 bool const accept =
1277                         !(inset && inset->forceDefaultParagraphs(inset));
1278
1279                 data = "update " + tostr(accept) + '\n' + data;
1280                 bv_->owner()->getDialogs().update("paragraph", data);
1281                 break;
1282         }
1283
1284         case LFUN_PARAGRAPH_APPLY:
1285                 setParagraphParams(*bv_, ev.argument);
1286                 break;
1287
1288         case LFUN_THESAURUS_ENTRY:
1289         {
1290                 string arg = ev.argument;
1291
1292                 if (arg.empty()) {
1293                         arg = bv_->getLyXText()->selectionAsString(buffer_,
1294                                                                    false);
1295
1296                         // FIXME
1297                         if (arg.size() > 100 || arg.empty()) {
1298                                 // Get word or selection
1299                                 bv_->getLyXText()->selectWordWhenUnderCursor(lyx::WHOLE_WORD);
1300                                 arg = bv_->getLyXText()->selectionAsString(buffer_, false);
1301                                 // FIXME: where is getLyXText()->unselect(bv_) ?
1302                         }
1303                 }
1304
1305                 bv_->owner()->getDialogs().show("thesaurus", arg);
1306         }
1307                 break;
1308
1309         case LFUN_TRACK_CHANGES:
1310                 trackChanges();
1311                 break;
1312
1313         case LFUN_MERGE_CHANGES:
1314                 owner_->getDialogs().show("changes");
1315                 break;
1316
1317         case LFUN_ACCEPT_ALL_CHANGES: {
1318                 update(BufferView::SELECT);
1319                 bv_->text->setCursor(bv_->buffer()->paragraphs.begin(), 0);
1320 #warning FIXME changes
1321                 //moveCursorUpdate(false);
1322
1323                 while (lyx::find::findNextChange(bv_)) {
1324                         bv_->getLyXText()->acceptChange();
1325                 }
1326                 update(BufferView::SELECT);
1327                 break;
1328         }
1329
1330         case LFUN_REJECT_ALL_CHANGES: {
1331                 update(BufferView::SELECT);
1332                 bv_->text->setCursor(bv_->buffer()->paragraphs.begin(), 0);
1333 #warning FIXME changes
1334                 //moveCursorUpdate(false);
1335
1336                 while (lyx::find::findNextChange(bv_)) {
1337                         bv_->getLyXText()->rejectChange();
1338                 }
1339                 update(BufferView::SELECT);
1340                 break;
1341         }
1342
1343         case LFUN_ACCEPT_CHANGE: {
1344                 bv_->getLyXText()->acceptChange();
1345                 update(BufferView::SELECT);
1346                 break;
1347         }
1348
1349         case LFUN_REJECT_CHANGE: {
1350                 bv_->getLyXText()->rejectChange();
1351                 update(BufferView::SELECT);
1352                 break;
1353         }
1354
1355         case LFUN_UNKNOWN_ACTION:
1356                 ev.errorMessage(N_("Unknown function!"));
1357                 break;
1358
1359         default:
1360                 return bv_->getLyXText()->dispatch(FuncRequest(ev, bv_));
1361         } // end of switch
1362
1363         return true;
1364 }
1365
1366
1367 bool BufferView::Pimpl::insertInset(InsetOld * inset, string const & lout)
1368 {
1369         // if we are in a locking inset we should try to insert the
1370         // inset there otherwise this is a illegal function now
1371         if (bv_->theLockingInset()) {
1372                 if (bv_->theLockingInset()->insetAllowed(inset))
1373                         return bv_->theLockingInset()->insertInset(bv_, inset);
1374                 return false;
1375         }
1376
1377         // not quite sure if we want this...
1378         recordUndo(bv_, Undo::ATOMIC);
1379         freezeUndo();
1380
1381         beforeChange(bv_->text);
1382         if (!lout.empty()) {
1383                 update(BufferView::SELECT);
1384                 bv_->text->breakParagraph(bv_->buffer()->paragraphs);
1385                 update(BufferView::SELECT);
1386
1387                 if (!bv_->text->cursor.par()->empty()) {
1388                         bv_->text->cursorLeft(bv_);
1389
1390                         bv_->text->breakParagraph(bv_->buffer()->paragraphs);
1391                         update(BufferView::SELECT);
1392                 }
1393
1394                 string lres = lout;
1395                 LyXTextClass const & tclass =
1396                         buffer_->params.getLyXTextClass();
1397                 bool hasLayout = tclass.hasLayout(lres);
1398                 string lay = tclass.defaultLayoutName();
1399
1400                 if (hasLayout != false) {
1401                         // layout found
1402                         lay = lres;
1403                 } else {
1404                         // layout not fount using default
1405                         lay = tclass.defaultLayoutName();
1406                 }
1407
1408                 bv_->text->setLayout(lay);
1409
1410                 bv_->text->setParagraph(0, 0,
1411                                    0, 0,
1412                                    VSpace(VSpace::NONE), VSpace(VSpace::NONE),
1413                                    Spacing(),
1414                                    LYX_ALIGN_LAYOUT,
1415                                    string(),
1416                                    0);
1417                 update(BufferView::SELECT);
1418         }
1419
1420         bv_->text->insertInset(inset);
1421         update(BufferView::SELECT);
1422
1423         unFreezeUndo();
1424         return true;
1425 }
1426
1427
1428 void BufferView::Pimpl::updateInset(InsetOld * inset)
1429 {
1430         if (!inset || !available())
1431                 return;
1432
1433         // first check for locking insets
1434         if (bv_->theLockingInset()) {
1435                 if (bv_->theLockingInset() == inset) {
1436                         if (bv_->text->updateInset(inset)) {
1437                                 update();
1438                                 updateScrollbar();
1439                                 return;
1440                         }
1441                 } else if (bv_->theLockingInset()->updateInsetInInset(bv_, inset)) {
1442                         if (bv_->text->updateInset(bv_->theLockingInset())) {
1443                                 update();
1444                                 updateScrollbar();
1445                                 return;
1446                         }
1447                 }
1448         }
1449
1450         // then check if the inset is a top_level inset (has no owner)
1451         // if yes do the update as always otherwise we have to update the
1452         // toplevel inset where this inset is inside
1453         InsetOld * tl_inset = inset;
1454         while (tl_inset->owner())
1455                 tl_inset = tl_inset->owner();
1456         if (tl_inset == inset) {
1457                 update(BufferView::UPDATE);
1458                 if (bv_->text->updateInset(inset)) {
1459                         update(BufferView::SELECT);
1460                         return;
1461                 }
1462         } else if (static_cast<UpdatableInset *>(tl_inset)
1463                            ->updateInsetInInset(bv_, inset))
1464         {
1465                 if (bv_->text->updateInset(tl_inset)) {
1466                         update();
1467                         updateScrollbar();
1468                 }
1469         }
1470 }