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