src/BufferView_pimpl.C

   1 /**
   2  * \file BufferView_pimpl.C
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author Asger Alstrup
   7  * \author Alfredo Braustein
   8  * \author Lars Gullik Bjønnes
   9  * \author Jean-Marc Lasgouttes
  10  * \author Angus Leeming
  11  * \author John Levon
  12  * \author André Pönitz
  13  * \author Dekel Tsur
  14  * \author Jürgen Vigna
  15  *
  16  * Full author contact details are available in file CREDITS.
  17  */
  18
  19 #include <config.h>
  20
  21 #include "BufferView_pimpl.h"
  22 #include "buffer.h"
  23 #include "buffer_funcs.h"
  24 #include "bufferlist.h"
  25 #include "bufferparams.h"
  26 #include "cursor.h"
  27 #include "debug.h"
  28 #include "dispatchresult.h"
  29 #include "factory.h"
  30 #include "FloatList.h"
  31 #include "funcrequest.h"
  32 #include "gettext.h"
  33 #include "intl.h"
  34 #include "iterators.h"
  35 #include "lyx_cb.h" // added for Dispatch functions
  36 #include "lyx_main.h"
  37 #include "lyxfind.h"
  38 #include "lyxfunc.h"
  39 #include "lyxtext.h"
  40 #include "lyxrc.h"
  41 #include "lastfiles.h"
  42 #include "paragraph.h"
  43 #include "paragraph_funcs.h"
  44 #include "ParagraphParameters.h"
  45 #include "undo.h"
  46 #include "vspace.h"
  47
  48 #include "insets/insetfloatlist.h"
  49 #include "insets/insetref.h"
  50
  51 #include "frontends/Alert.h"
  52 #include "frontends/Dialogs.h"
  53 #include "frontends/FileDialog.h"
  54 #include "frontends/LyXView.h"
  55 #include "frontends/LyXScreenFactory.h"
  56 #include "frontends/screen.h"
  57 #include "frontends/WorkArea.h"
  58 #include "frontends/WorkAreaFactory.h"
  59
  60 #include "graphics/Previews.h"
  61
  62 #include "mathed/formulabase.h"
  63
  64 #include "support/filetools.h"
  65 #include "support/globbing.h"
  66 #include "support/path_defines.h"
  67 #include "support/tostr.h"
  68
  69 #include <boost/bind.hpp>
  70
  71 using bv_funcs::currentState;
  72
  73 using lyx::pos_type;
  74
  75 using lyx::support::AddPath;
  76 using lyx::support::bformat;
  77 using lyx::support::FileFilterList;
  78 using lyx::support::FileSearch;
  79 using lyx::support::IsDirWriteable;
  80 using lyx::support::MakeDisplayPath;
  81 using lyx::support::strToUnsignedInt;
  82 using lyx::support::system_lyxdir;
  83
  84 using std::endl;
  85 using std::make_pair;
  86 using std::min;
  87 using std::string;
  88
  89
  90 extern BufferList bufferlist;
  91
  92
  93 namespace {
  94
  95 unsigned int const saved_positions_num = 20;
  96
  97 // All the below connection objects are needed because of a bug in some
  98 // versions of GCC (<=2.96 are on the suspects list.) By having and assigning
  99 // to these connections we avoid a segfault upon startup, and also at exit.
 100 // (Lgb)
 101
 102 boost::signals::connection dispatchcon;
 103 boost::signals::connection timecon;
 104 boost::signals::connection doccon;
 105 boost::signals::connection resizecon;
 106 boost::signals::connection kpresscon;
 107 boost::signals::connection selectioncon;
 108 boost::signals::connection lostcon;
 109
 110
 111 } // anon namespace
 112
 113
 114 BufferView::Pimpl::Pimpl(BufferView & bv, LyXView * owner,
 115              int xpos, int ypos, int width, int height)
 116         : bv_(&bv), owner_(owner), buffer_(0), cursor_timeout(400),
 117           using_xterm_cursor(false), cursor_(bv)
 118 {
 119         xsel_cache_.set = false;
 120
 121         workarea_.reset(WorkAreaFactory::create(xpos, ypos, width, height));
 122         screen_.reset(LyXScreenFactory::create(workarea()));
 123
 124         // Setup the signals
 125         doccon = workarea().scrollDocView
 126                 .connect(boost::bind(&BufferView::Pimpl::scrollDocView, this, _1));
 127         resizecon = workarea().workAreaResize
 128                 .connect(boost::bind(&BufferView::Pimpl::workAreaResize, this));
 129         dispatchcon = workarea().dispatch
 130                 .connect(boost::bind(&BufferView::Pimpl::workAreaDispatch, this, _1));
 131         kpresscon = workarea().workAreaKeyPress
 132                 .connect(boost::bind(&BufferView::Pimpl::workAreaKeyPress, this, _1, _2));
 133         selectioncon = workarea().selectionRequested
 134                 .connect(boost::bind(&BufferView::Pimpl::selectionRequested, this));
 135         lostcon = workarea().selectionLost
 136                 .connect(boost::bind(&BufferView::Pimpl::selectionLost, this));
 137
 138         timecon = cursor_timeout.timeout
 139                 .connect(boost::bind(&BufferView::Pimpl::cursorToggle, this));
 140         cursor_timeout.start();
 141         saved_positions.resize(saved_positions_num);
 142 }
 143
 144
 145 void BufferView::Pimpl::addError(ErrorItem const & ei)
 146 {
 147         errorlist_.push_back(ei);
 148 }
 149
 150
 151 void BufferView::Pimpl::showReadonly(bool)
 152 {
 153         owner_->updateWindowTitle();
 154         owner_->getDialogs().updateBufferDependent(false);
 155 }
 156
 157
 158 void BufferView::Pimpl::connectBuffer(Buffer & buf)
 159 {
 160         if (errorConnection_.connected())
 161                 disconnectBuffer();
 162
 163         errorConnection_ =
 164                 buf.error.connect(boost::bind(&BufferView::Pimpl::addError, this, _1));
 165         messageConnection_ =
 166                 buf.message.connect(boost::bind(&LyXView::message, owner_, _1));
 167         busyConnection_ =
 168                 buf.busy.connect(boost::bind(&LyXView::busy, owner_, _1));
 169         titleConnection_ =
 170                 buf.updateTitles.connect(boost::bind(&LyXView::updateWindowTitle, owner_));
 171         timerConnection_ =
 172                 buf.resetAutosaveTimers.connect(boost::bind(&LyXView::resetAutosaveTimer, owner_));
 173         readonlyConnection_ =
 174                 buf.readonly.connect(boost::bind(&BufferView::Pimpl::showReadonly, this, _1));
 175         closingConnection_ =
 176                 buf.closing.connect(boost::bind(&BufferView::Pimpl::buffer, this, (Buffer *)0));
 177 }
 178
 179
 180 void BufferView::Pimpl::disconnectBuffer()
 181 {
 182         errorConnection_.disconnect();
 183         messageConnection_.disconnect();
 184         busyConnection_.disconnect();
 185         titleConnection_.disconnect();
 186         timerConnection_.disconnect();
 187         readonlyConnection_.disconnect();
 188         closingConnection_.disconnect();
 189 }
 190
 191
 192 bool BufferView::Pimpl::newFile(string const & filename,
 193                                 string const & tname,
 194                                 bool isNamed)
 195 {
 196         Buffer * b = ::newFile(filename, tname, isNamed);
 197         buffer(b);
 198         return true;
 199 }
 200
 201
 202 bool BufferView::Pimpl::loadLyXFile(string const & filename, bool tolastfiles)
 203 {
 204         // get absolute path of file and add ".lyx" to the filename if
 205         // necessary
 206         string s = FileSearch(string(), filename, "lyx");
 207
 208         bool const found = !s.empty();
 209
 210         if (!found)
 211                 s = filename;
 212
 213         // file already open?
 214         if (bufferlist.exists(s)) {
 215                 string const file = MakeDisplayPath(s, 20);
 216                 string text = bformat(_("The document %1$s is already "
 217                                         "loaded.\n\nDo you want to revert "
 218                                         "to the saved version?"), file);
 219                 int const ret = Alert::prompt(_("Revert to saved document?"),
 220                         text, 0, 1,  _("&Revert"), _("&Switch to document"));
 221
 222                 if (ret != 0) {
 223                         buffer(bufferlist.getBuffer(s));
 224                         return true;
 225                 } else {
 226                         // FIXME: should be LFUN_REVERT
 227                         if (!bufferlist.close(bufferlist.getBuffer(s), false))
 228                                 return false;
 229                         // Fall through to new load. (Asger)
 230                 }
 231         }
 232
 233         Buffer * b;
 234
 235         if (found) {
 236                 b = bufferlist.newBuffer(s);
 237                 connectBuffer(*b);
 238                 if (!::loadLyXFile(b, s)) {
 239                         bufferlist.release(b);
 240                         return false;
 241                 }
 242         } else {
 243                 string text = bformat(_("The document %1$s does not yet "
 244                                         "exist.\n\nDo you want to create "
 245                                         "a new document?"), s);
 246                 int const ret = Alert::prompt(_("Create new document?"),
 247                          text, 0, 1, _("&Create"), _("Cancel"));
 248
 249                 if (ret == 0)
 250                         b = ::newFile(s, string(), true);
 251                 else
 252                         return false;
 253         }
 254
 255         buffer(b);
 256         bv_->showErrorList(_("Parse"));
 257
 258         if (tolastfiles)
 259                 LyX::ref().lastfiles().newFile(b->fileName());
 260
 261         return true;
 262 }
 263
 264
 265 WorkArea & BufferView::Pimpl::workarea() const
 266 {
 267         return *workarea_.get();
 268 }
 269
 270
 271 LyXScreen & BufferView::Pimpl::screen() const
 272 {
 273         return *screen_.get();
 274 }
 275
 276
 277 Painter & BufferView::Pimpl::painter() const
 278 {
 279         return workarea().getPainter();
 280 }
 281
 282
 283 void BufferView::Pimpl::top_y(int y)
 284 {
 285         top_y_ = y;
 286 }
 287
 288
 289 int BufferView::Pimpl::top_y() const
 290 {
 291         return top_y_;
 292 }
 293
 294
 295 void BufferView::Pimpl::buffer(Buffer * b)
 296 {
 297         lyxerr[Debug::INFO] << "Setting buffer in BufferView ("
 298                             << b << ')' << endl;
 299         if (buffer_) {
 300                 disconnectBuffer();
 301                 //delete bv_->text();
 302                 //bv_->setText(0);
 303         }
 304
 305         // set current buffer
 306         buffer_ = b;
 307
 308         top_y_ = 0;
 309
 310         // if we're quitting lyx, don't bother updating stuff
 311         if (quitting)
 312                 return;
 313
 314         // if we are closing the buffer, use the first buffer as current
 315         if (!buffer_)
 316                 buffer_ = bufferlist.first();
 317
 318         if (buffer_) {
 319                 lyxerr[Debug::INFO] << "Buffer addr: " << buffer_ << endl;
 320                 connectBuffer(*buffer_);
 321
 322                 buffer_->text().init(bv_);
 323                 buffer_->text().textwidth_ = workarea().workWidth();
 324                 buffer_->text().fullRebreak();
 325
 326                 // If we don't have a text object for this, we make one
 327                 if (bv_->text() == 0)
 328                         resizeCurrentBuffer();
 329
 330                 // FIXME: needed when ?
 331                 fitCursor();
 332
 333                 // Buffer-dependent dialogs should be updated or
 334                 // hidden. This should go here because some dialogs (eg ToC)
 335                 // require bv_->text.
 336                 owner_->getDialogs().updateBufferDependent(true);
 337         } else {
 338                 lyxerr[Debug::INFO] << "  No Buffer!" << endl;
 339                 owner_->getDialogs().hideBufferDependent();
 340         }
 341
 342         update();
 343         updateScrollbar();
 344         owner_->updateMenubar();
 345         owner_->updateToolbar();
 346         owner_->updateLayoutChoice();
 347         owner_->updateWindowTitle();
 348
 349         // Don't forget to update the Layout
 350         if (buffer_)
 351                 owner_->setLayout(bv_->text()->cursorPar()->layout()->name());
 352
 353         if (lyx::graphics::Previews::activated() && buffer_)
 354                 lyx::graphics::Previews::get().generateBufferPreviews(*buffer_);
 355 }
 356
 357
 358 bool BufferView::Pimpl::fitCursor()
 359 {
 360         lyxerr << "BufferView::Pimpl::fitCursor." << endl;
 361         if (screen().fitCursor(bv_)) {
 362                 updateScrollbar();
 363                 return true;
 364         }
 365         return false;
 366 }
 367
 368
 369 void BufferView::Pimpl::redoCurrentBuffer()
 370 {
 371         lyxerr[Debug::INFO] << "BufferView::redoCurrentBuffer" << endl;
 372         if (buffer_ && bv_->text()) {
 373                 resizeCurrentBuffer();
 374                 updateScrollbar();
 375                 owner_->updateLayoutChoice();
 376         }
 377 }
 378
 379
 380 void BufferView::Pimpl::resizeCurrentBuffer()
 381 {
 382         lyxerr[Debug::INFO] << "resizeCurrentBuffer" << endl;
 383
 384         int par = -1;
 385         int selstartpar = -1;
 386         int selendpar = -1;
 387
 388         pos_type pos = 0;
 389         pos_type selstartpos = 0;
 390         pos_type selendpos = 0;
 391         bool sel = false;
 392         bool mark_set  = false;
 393
 394         owner_->busy(true);
 395
 396         owner_->message(_("Formatting document..."));
 397
 398         LyXText * text = bv_->text();
 399         lyxerr << "### resizeCurrentBuffer: text " << text << endl;
 400         if (!text)
 401                 return;
 402
 403         par = bv_->cursor().par();
 404         pos = bv_->cursor().pos();
 405         selstartpar = bv_->selStart().par();
 406         selstartpos = bv_->selStart().pos();
 407         selendpar = bv_->selEnd().par();
 408         selendpos = bv_->selEnd().pos();
 409         sel = bv_->selection().set();
 410         mark_set = bv_->selection().mark();
 411         text->textwidth_ = bv_->workWidth();
 412         text->fullRebreak();
 413         update();
 414
 415         if (par != -1) {
 416                 bv_->selection().set(true);
 417                 // At this point just to avoid the Delete-Empty-Paragraph-
 418                 // Mechanism when setting the cursor.
 419                 bv_->selection().mark(mark_set);
 420                 if (sel) {
 421                         text->setCursor(selstartpar, selstartpos);
 422                         bv_->resetAnchor();
 423                         text->setCursor(selendpar, selendpos);
 424                         bv_->setSelection();
 425                         text->setCursor(par, pos);
 426                 } else {
 427                         text->setCursor(par, pos);
 428                         bv_->resetAnchor();
 429                         bv_->selection().set(false);
 430                 }
 431         }
 432
 433         fitCursor();
 434
 435         switchKeyMap();
 436         owner_->busy(false);
 437
 438         // reset the "Formatting..." message
 439         owner_->clearMessage();
 440
 441         updateScrollbar();
 442 }
 443
 444
 445 void BufferView::Pimpl::updateScrollbar()
 446 {
 447         if (!bv_->text()) {
 448                 lyxerr[Debug::GUI] << "no text in updateScrollbar" << endl;
 449                 workarea().setScrollbarParams(0, 0, 0);
 450                 return;
 451         }
 452
 453         LyXText const & t = *bv_->text();
 454
 455         lyxerr[Debug::GUI] << "Updating scrollbar: h " << t.height << ", top_y() "
 456                 << top_y() << ", default height " << defaultRowHeight() << endl;
 457
 458         workarea().setScrollbarParams(t.height, top_y(), defaultRowHeight());
 459 }
 460
 461
 462 void BufferView::Pimpl::scrollDocView(int value)
 463 {
 464         lyxerr[Debug::GUI] << "scrollDocView of " << value << endl;
 465
 466         if (!buffer_)
 467                 return;
 468
 469         screen().hideCursor();
 470
 471         top_y(value);
 472         screen().redraw(*bv_);
 473
 474         if (!lyxrc.cursor_follows_scrollbar)
 475                 return;
 476
 477         int const height = defaultRowHeight();
 478         int const first = top_y() + height;
 479         int const last = top_y() + workarea().workHeight() - height;
 480
 481         LyXText * text = bv_->text();
 482         if (text->cursorY() < first)
 483                 text->setCursorFromCoordinates(0, first);
 484         else if (text->cursorY() > last)
 485                 text->setCursorFromCoordinates(0, last);
 486
 487         owner_->updateLayoutChoice();
 488 }
 489
 490
 491 void BufferView::Pimpl::scroll(int lines)
 492 {
 493         if (!buffer_)
 494                 return;
 495
 496         LyXText const * t = bv_->text();
 497         int const line_height = defaultRowHeight();
 498
 499         // The new absolute coordinate
 500         int new_top_y = top_y() + lines * line_height;
 501
 502         // Restrict to a valid value
 503         new_top_y = std::min(t->height - 4 * line_height, new_top_y);
 504         new_top_y = std::max(0, new_top_y);
 505
 506         scrollDocView(new_top_y);
 507
 508         // Update the scrollbar.
 509         workarea().setScrollbarParams(t->height, top_y(), defaultRowHeight());
 510 }
 511
 512
 513 void BufferView::Pimpl::workAreaKeyPress(LyXKeySymPtr key,
 514                                          key_modifier::state state)
 515 {
 516         bv_->owner()->getLyXFunc().processKeySym(key, state);
 517
 518         /* This is perhaps a bit of a hack. When we move
 519          * around, or type, it's nice to be able to see
 520          * the cursor immediately after the keypress. So
 521          * we reset the toggle timeout and force the visibility
 522          * of the cursor. Note we cannot do this inside
 523          * dispatch() itself, because that's called recursively.
 524          */
 525         if (available()) {
 526                 cursor_timeout.restart();
 527                 screen().showCursor(*bv_);
 528         }
 529 }
 530
 531
 532 void BufferView::Pimpl::selectionRequested()
 533 {
 534         static string sel;
 535
 536         if (!available())
 537                 return;
 538
 539         LyXText * text = bv_->getLyXText();
 540
 541         if (!bv_->selection().set()) {
 542                 xsel_cache_.set = false;
 543                 return;
 544         }
 545
 546         if (!xsel_cache_.set ||
 547             bv_->cursor() != xsel_cache_.cursor ||
 548             bv_->anchor() != xsel_cache_.anchor)
 549         {
 550                 xsel_cache_.cursor = bv_->cursor();
 551                 xsel_cache_.anchor = bv_->anchor();
 552                 xsel_cache_.set = bv_->selection().set();
 553                 sel = text->selectionAsString(*bv_->buffer(), false);
 554                 if (!sel.empty())
 555                         workarea().putClipboard(sel);
 556         }
 557 }
 558
 559
 560 void BufferView::Pimpl::selectionLost()
 561 {
 562         if (available()) {
 563                 screen().hideCursor();
 564                 bv_->clearSelection();
 565                 xsel_cache_.set = false;
 566         }
 567 }
 568
 569
 570 void BufferView::Pimpl::workAreaResize()
 571 {
 572         static int work_area_width;
 573         static int work_area_height;
 574
 575         bool const widthChange = workarea().workWidth() != work_area_width;
 576         bool const heightChange = workarea().workHeight() != work_area_height;
 577
 578         // update from work area
 579         work_area_width = workarea().workWidth();
 580         work_area_height = workarea().workHeight();
 581
 582         if (buffer_ != 0) {
 583                 if (widthChange) {
 584                         // The visible LyXView need a resize
 585                         resizeCurrentBuffer();
 586                 }
 587         }
 588
 589         if (widthChange || heightChange)
 590                 update();
 591
 592         // always make sure that the scrollbar is sane.
 593         updateScrollbar();
 594         owner_->updateLayoutChoice();
 595 }
 596
 597
 598 void BufferView::Pimpl::update()
 599 {
 600         //lyxerr << "BufferView::update()" << endl;
 601         // fix cursor coordinate cache in case something went wrong
 602
 603         // check needed to survive LyX startup
 604         if (bv_->getLyXText()) {
 605                 // update all 'visible' paragraphs
 606                 ParagraphList::iterator beg;
 607                 ParagraphList::iterator end;
 608                 getParsInRange(buffer_->paragraphs(),
 609                                top_y(), top_y() + workarea().workHeight(),
 610                                beg, end);
 611                 bv_->text()->redoParagraphs(beg, end);
 612                 updateScrollbar();
 613         }
 614         screen().redraw(*bv_);
 615 }
 616
 617
 618 // Callback for cursor timer
 619 void BufferView::Pimpl::cursorToggle()
 620 {
 621         if (!buffer_) {
 622                 cursor_timeout.restart();
 623                 return;
 624         }
 625
 626         screen().toggleCursor(*bv_);
 627         cursor_timeout.restart();
 628 }
 629
 630
 631 bool BufferView::Pimpl::available() const
 632 {
 633         return buffer_ && bv_->text();
 634 }
 635
 636
 637 Change const BufferView::Pimpl::getCurrentChange()
 638 {
 639         if (!bv_->buffer()->params().tracking_changes)
 640                 return Change(Change::UNCHANGED);
 641
 642         LyXText * text = bv_->getLyXText();
 643
 644         if (!bv_->selection().set())
 645                 return Change(Change::UNCHANGED);
 646
 647         return text->getPar(bv_->selStart())
 648                 ->lookupChangeFull(bv_->selStart().pos());
 649 }
 650
 651
 652 void BufferView::Pimpl::savePosition(unsigned int i)
 653 {
 654         if (i >= saved_positions_num)
 655                 return;
 656         saved_positions[i] = Position(buffer_->fileName(),
 657                                       bv_->text()->cursorPar()->id(),
 658                                       bv_->text()->cursor().pos());
 659         if (i > 0)
 660                 owner_->message(bformat(_("Saved bookmark %1$s"), tostr(i)));
 661 }
 662
 663
 664 void BufferView::Pimpl::restorePosition(unsigned int i)
 665 {
 666         if (i >= saved_positions_num)
 667                 return;
 668
 669         string const fname = saved_positions[i].filename;
 670
 671         bv_->clearSelection();
 672
 673         if (fname != buffer_->fileName()) {
 674                 Buffer * b = 0;
 675                 if (bufferlist.exists(fname))
 676                         b = bufferlist.getBuffer(fname);
 677                 else {
 678                         b = bufferlist.newBuffer(fname);
 679                         ::loadLyXFile(b, fname); // don't ask, just load it
 680                 }
 681                 if (b)
 682                         buffer(b);
 683         }
 684
 685         ParIterator par = buffer_->getParFromID(saved_positions[i].par_id);
 686         if (par == buffer_->par_iterator_end())
 687                 return;
 688
 689         bv_->text()->setCursor(par.pit(),
 690                              min(par->size(), saved_positions[i].par_pos));
 691
 692         if (i > 0)
 693                 owner_->message(bformat(_("Moved to bookmark %1$s"), tostr(i)));
 694 }
 695
 696
 697 bool BufferView::Pimpl::isSavedPosition(unsigned int i)
 698 {
 699         return i < saved_positions_num && !saved_positions[i].filename.empty();
 700 }
 701
 702
 703 void BufferView::Pimpl::switchKeyMap()
 704 {
 705         if (!lyxrc.rtl_support)
 706                 return;
 707
 708         Intl & intl = owner_->getIntl();
 709         if (bv_->getLyXText()->real_current_font.isRightToLeft()) {
 710                 if (intl.keymap == Intl::PRIMARY)
 711                         intl.KeyMapSec();
 712         } else {
 713                 if (intl.keymap == Intl::SECONDARY)
 714                         intl.KeyMapPrim();
 715         }
 716 }
 717
 718
 719 void BufferView::Pimpl::center()
 720 {
 721         LyXText * text = bv_->text();
 722
 723         bv_->clearSelection();
 724         int const half_height = workarea().workHeight() / 2;
 725         int new_y = std::max(0, text->cursorY() - half_height);
 726
 727         // FIXME: look at this comment again ...
 728         // This updates top_y() but means the fitCursor() call
 729         // from the update(FITCUR) doesn't realise that we might
 730         // have moved (e.g. from GOTOPARAGRAPH), so doesn't cause
 731         // the scrollbar to be updated as it should, so we have
 732         // to do it manually. Any operation that does a center()
 733         // and also might have moved top_y() must make sure to call
 734         // updateScrollbar() currently. Never mind that this is a
 735         // pretty obfuscated way of updating t->top_y()
 736         top_y(new_y);
 737 }
 738
 739
 740 void BufferView::Pimpl::stuffClipboard(string const & stuff) const
 741 {
 742         workarea().putClipboard(stuff);
 743 }
 744
 745
 746 InsetOld * BufferView::Pimpl::getInsetByCode(InsetOld::Code code)
 747 {
 748 #if 0
 749         CursorSlice cursor = bv_->getLyXText()->cursor;
 750         Buffer::inset_iterator it =
 751                 find_if(Buffer::inset_iterator(
 752                         cursorPar(), cursor().pos()),
 753                         buffer_->inset_iterator_end(),
 754                         lyx::compare_memfun(&Inset::lyxCode, code));
 755         return it != buffer_->inset_iterator_end() ? (*it) : 0;
 756 #else
 757         // Ok, this is a little bit too brute force but it
 758         // should work for now. Better infrastructure is coming. (Lgb)
 759
 760         Buffer * b = bv_->buffer();
 761         LyXText * text = bv_->getLyXText();
 762
 763         Buffer::inset_iterator beg = b->inset_iterator_begin();
 764         Buffer::inset_iterator end = b->inset_iterator_end();
 765
 766         bool cursor_par_seen = false;
 767
 768         for (; beg != end; ++beg) {
 769                 if (beg.getPar() == text->cursorPar()) {
 770                         cursor_par_seen = true;
 771                 }
 772                 if (cursor_par_seen) {
 773                         if (beg.getPar() == text->cursorPar()
 774                             && beg.getPos() >= text->cursor().pos()) {
 775                                 break;
 776                         } else if (beg.getPar() != text->cursorPar()) {
 777                                 break;
 778                         }
 779                 }
 780
 781         }
 782         if (beg != end) {
 783                 // Now find the first inset that matches code.
 784                 for (; beg != end; ++beg) {
 785                         if (beg->lyxCode() == code) {
 786                                 return &(*beg);
 787                         }
 788                 }
 789         }
 790         return 0;
 791 #endif
 792 }
 793
 794
 795 void BufferView::Pimpl::MenuInsertLyXFile(string const & filen)
 796 {
 797         string filename = filen;
 798
 799         if (filename.empty()) {
 800                 // Launch a file browser
 801                 string initpath = lyxrc.document_path;
 802
 803                 if (available()) {
 804                         string const trypath = owner_->buffer()->filePath();
 805                         // If directory is writeable, use this as default.
 806                         if (IsDirWriteable(trypath))
 807                                 initpath = trypath;
 808                 }
 809
 810                 FileDialog fileDlg(_("Select LyX document to insert"),
 811                         LFUN_FILE_INSERT,
 812                         make_pair(string(_("Documents|#o#O")),
 813                                   string(lyxrc.document_path)),
 814                         make_pair(string(_("Examples|#E#e")),
 815                                   string(AddPath(system_lyxdir(), "examples"))));
 816
 817                 FileDialog::Result result =
 818                         fileDlg.open(initpath,
 819                                      FileFilterList(_("LyX Documents (*.lyx)")),
 820                                      string());
 821
 822                 if (result.first == FileDialog::Later)
 823                         return;
 824
 825                 filename = result.second;
 826
 827                 // check selected filename
 828                 if (filename.empty()) {
 829                         owner_->message(_("Canceled."));
 830                         return;
 831                 }
 832         }
 833
 834         // get absolute path of file and add ".lyx" to the filename if
 835         // necessary
 836         filename = FileSearch(string(), filename, "lyx");
 837
 838         string const disp_fn = MakeDisplayPath(filename);
 839         owner_->message(bformat(_("Inserting document %1$s..."), disp_fn));
 840         if (bv_->insertLyXFile(filename))
 841                 owner_->message(bformat(_("Document %1$s inserted."),
 842                                         disp_fn));
 843         else
 844                 owner_->message(bformat(_("Could not insert document %1$s"),
 845                                         disp_fn));
 846 }
 847
 848
 849 void BufferView::Pimpl::trackChanges()
 850 {
 851         Buffer * buf(bv_->buffer());
 852         bool const tracking(buf->params().tracking_changes);
 853
 854         if (!tracking) {
 855                 ParIterator const end = buf->par_iterator_end();
 856                 for (ParIterator it = buf->par_iterator_begin(); it != end; ++it)
 857                         it->trackChanges();
 858                 buf->params().tracking_changes = true;
 859
 860                 // we cannot allow undos beyond the freeze point
 861                 buf->undostack().clear();
 862         } else {
 863                 update();
 864                 bv_->text()->setCursor(0, 0);
 865 #warning changes FIXME
 866                 bool found = lyx::find::findNextChange(bv_);
 867                 if (found) {
 868                         owner_->getDialogs().show("changes");
 869                         return;
 870                 }
 871
 872                 ParIterator const end = buf->par_iterator_end();
 873                 for (ParIterator it = buf->par_iterator_begin(); it != end; ++it)
 874                         it->untrackChanges();
 875                 buf->params().tracking_changes = false;
 876         }
 877
 878         buf->redostack().clear();
 879 }
 880
 881 #warning remove me
 882 LCursor theTempCursor;
 883
 884 namespace {
 885
 886         InsetOld * insetFromCoords(BufferView * bv, int x, int y)
 887         {
 888                 lyxerr << "insetFromCoords" << endl;
 889                 LyXText * text = bv->text();
 890                 InsetOld * inset = 0;
 891                 theTempCursor = LCursor(*bv);
 892                 while (true) {
 893                         InsetOld * const inset_hit = text->checkInsetHit(x, y);
 894                         if (!inset_hit) {
 895                                 lyxerr << "no further inset hit" << endl;
 896                                 break;
 897                         }
 898                         inset = inset_hit;
 899                         if (!inset->descendable()) {
 900                                 lyxerr << "not descendable" << endl;
 901                                 break;
 902                         }
 903                         int const cell = inset->getCell(x, y + bv->top_y());
 904                         if (cell == -1)
 905                                 break;
 906                         text = inset_hit->getText(cell);
 907                         lyxerr << "Hit inset: " << inset << " at x: " << x
 908                                 << " text: " << text << " y: " << y << endl;
 909                         theTempCursor.push(static_cast<UpdatableInset*>(inset));
 910                 }
 911                 lyxerr << "theTempCursor: " << theTempCursor << endl;
 912                 return inset;
 913         }
 914
 915 }
 916
 917
 918 bool BufferView::Pimpl::workAreaDispatch(FuncRequest const & cmd)
 919 {
 920         switch (cmd.action) {
 921         case LFUN_MOUSE_MOTION: {
 922                 if (!available())
 923                         return false;
 924                 FuncRequest cmd1 = cmd;
 925                 UpdatableInset * inset = bv_->fullCursor().innerInset();
 926                 DispatchResult res;
 927                 if (inset) {
 928                         cmd1.x -= inset->x();
 929                         cmd1.y -= inset->y();
 930                         res = inset->dispatch(*bv_, cmd1);
 931                 } else {
 932                         cmd1.y += bv_->top_y();
 933                         res = bv_->fullCursor().innerText()->dispatch(*bv_, cmd1);
 934                 }
 935
 936                 if (bv_->fitCursor() || res.update()) {
 937                         bv_->update();
 938                         bv_->fullCursor().updatePos();
 939                 }
 940
 941                 return true;
 942         }
 943
 944         case LFUN_MOUSE_PRESS:
 945         case LFUN_MOUSE_RELEASE:
 946         case LFUN_MOUSE_DOUBLE:
 947         case LFUN_MOUSE_TRIPLE: {
 948                 // We pass those directly to the Bufferview, since
 949                 // otherwise selection handling breaks down
 950
 951                 // Doesn't go through lyxfunc, so we need to update
 952                 // the layout choice etc. ourselves
 953
 954                 // e.g. Qt mouse press when no buffer
 955                 if (!available())
 956                         return false;
 957
 958                 screen().hideCursor();
 959
 960                 // either the inset under the cursor or the surrounding LyXText will
 961                 // handle this event.
 962
 963                 // built temporary path to inset
 964                 InsetOld * inset = insetFromCoords(bv_, cmd.x, cmd.y);
 965                 DispatchResult res;
 966
 967                 // try to dispatch to that inset
 968                 if (inset) {
 969                         FuncRequest cmd2 = cmd;
 970                         lyxerr << "dispatching action " << cmd2.action
 971                                << " to inset " << inset << endl;
 972                         cmd2.x -= inset->x();
 973                         cmd2.y -= inset->y();
 974                         res = inset->dispatch(*bv_, cmd2);
 975                         if (res.update()) {
 976                                 bv_->update();
 977                                 bv_->fullCursor().updatePos();
 978                         }
 979                         res.update(false);
 980                         switch (res.val()) {
 981                                 case FINISHED:
 982                                 case FINISHED_RIGHT:
 983                                 case FINISHED_UP:
 984                                 case FINISHED_DOWN:
 985                                         theTempCursor.pop();
 986                                         bv_->fullCursor(theTempCursor);
 987                                         bv_->fullCursor().innerText()
 988                                                 ->setCursorFromCoordinates(cmd.x, top_y() + cmd.y);
 989                                         if (bv_->fitCursor())
 990                                                 bv_->update();
 991                                         return true;
 992                                 default:
 993                                         lyxerr << "not dispatched by inner inset val: " << res.val() << endl;
 994                                         break;
 995                         }
 996                 }
 997
 998                 // otherwise set cursor to surrounding LyXText
 999                 if (!res.dispatched()) {
1000                         lyxerr << "temp cursor is: " << theTempCursor << endl;
1001                         lyxerr << "dispatching " << cmd
1002                                << " to surrounding LyXText "
1003                                << theTempCursor.innerText() << endl;
1004                         bv_->fullCursor(theTempCursor);
1005                         FuncRequest cmd1 = cmd;
1006                         cmd1.y += bv_->top_y();
1007                         res = bv_->fullCursor().innerText()->dispatch(*bv_, cmd1);
1008                         if (bv_->fitCursor() || res.update())
1009                                 bv_->update();
1010
1011                         //return DispatchResult(true, true);
1012                 }
1013                 // see workAreaKeyPress
1014                 cursor_timeout.restart();
1015                 screen().showCursor(*bv_);
1016
1017                 // skip these when selecting
1018                 if (cmd.action != LFUN_MOUSE_MOTION) {
1019                         owner_->updateLayoutChoice();
1020                         owner_->updateToolbar();
1021                 }
1022
1023                 // slight hack: this is only called currently when we
1024                 // clicked somewhere, so we force through the display
1025                 // of the new status here.
1026                 owner_->clearMessage();
1027                 return true;
1028         }
1029
1030         default:
1031                 owner_->dispatch(cmd);
1032                 return true;
1033         }
1034 }
1035
1036
1037 bool BufferView::Pimpl::dispatch(FuncRequest const & ev)
1038 {
1039         // Make sure that the cached BufferView is correct.
1040         lyxerr[Debug::ACTION] << "BufferView::Pimpl::Dispatch:"
1041                 << " action[" << ev.action << ']'
1042                 << " arg[" << ev.argument << ']'
1043                 << " x[" << ev.x << ']'
1044                 << " y[" << ev.y << ']'
1045                 << " button[" << ev.button() << ']'
1046                 << endl;
1047
1048         LyXTextClass const & tclass = buffer_->params().getLyXTextClass();
1049
1050         switch (ev.action) {
1051
1052         case LFUN_SCROLL_INSET:
1053                 // this is not handled here as this function is only active
1054                 // if we have a locking_inset and that one is (or contains)
1055                 // a tabular-inset
1056                 break;
1057
1058         case LFUN_FILE_INSERT:
1059                 MenuInsertLyXFile(ev.argument);
1060                 break;
1061
1062         case LFUN_FILE_INSERT_ASCII_PARA:
1063                 InsertAsciiFile(bv_, ev.argument, true);
1064                 break;
1065
1066         case LFUN_FILE_INSERT_ASCII:
1067                 InsertAsciiFile(bv_, ev.argument, false);
1068                 break;
1069
1070         case LFUN_FONT_STATE:
1071                 owner_->getLyXFunc().setMessage(currentState(bv_));
1072                 break;
1073
1074         case LFUN_INSERT_LABEL: {
1075                 // Try and generate a valid label
1076                 string const contents = ev.argument.empty() ?
1077                         getPossibleLabel(*bv_) : ev.argument;
1078                 InsetCommandParams icp("label", contents);
1079                 string data = InsetCommandMailer::params2string("label", icp);
1080                 owner_->getDialogs().show("label", data, 0);
1081                 break;
1082         }
1083
1084         case LFUN_BOOKMARK_SAVE:
1085                 savePosition(strToUnsignedInt(ev.argument));
1086                 break;
1087
1088         case LFUN_BOOKMARK_GOTO:
1089                 restorePosition(strToUnsignedInt(ev.argument));
1090                 break;
1091
1092         case LFUN_REF_GOTO: {
1093                 string label = ev.argument;
1094                 if (label.empty()) {
1095                         InsetRef * inset =
1096                                 static_cast<InsetRef*>(getInsetByCode(InsetOld::REF_CODE));
1097                         if (inset) {
1098                                 label = inset->getContents();
1099                                 savePosition(0);
1100                         }
1101                 }
1102
1103                 if (!label.empty())
1104                         bv_->gotoLabel(label);
1105         }
1106         break;
1107
1108         // --- accented characters ---------------------------
1109
1110         case LFUN_UMLAUT:
1111         case LFUN_CIRCUMFLEX:
1112         case LFUN_GRAVE:
1113         case LFUN_ACUTE:
1114         case LFUN_TILDE:
1115         case LFUN_CEDILLA:
1116         case LFUN_MACRON:
1117         case LFUN_DOT:
1118         case LFUN_UNDERDOT:
1119         case LFUN_UNDERBAR:
1120         case LFUN_CARON:
1121         case LFUN_SPECIAL_CARON:
1122         case LFUN_BREVE:
1123         case LFUN_TIE:
1124         case LFUN_HUNG_UMLAUT:
1125         case LFUN_CIRCLE:
1126         case LFUN_OGONEK:
1127                 if (ev.argument.empty()) {
1128                         // As always...
1129                         owner_->getLyXFunc().handleKeyFunc(ev.action);
1130                 } else {
1131                         owner_->getLyXFunc().handleKeyFunc(ev.action);
1132                         owner_->getIntl().getTransManager()
1133                                 .TranslateAndInsert(ev.argument[0], bv_->getLyXText());
1134                         update();
1135                 }
1136                 break;
1137
1138         case LFUN_MATH_MACRO:
1139         case LFUN_MATH_DELIM:
1140         case LFUN_INSERT_MATRIX:
1141         case LFUN_INSERT_MATH:
1142         case LFUN_MATH_IMPORT_SELECTION: // Imports LaTeX from the X selection
1143         case LFUN_MATH_DISPLAY:          // Open or create a displayed math inset
1144         case LFUN_MATH_MODE:             // Open or create an inlined math inset
1145                 mathDispatch(*bv_, ev);
1146                 break;
1147
1148         case LFUN_INSET_INSERT: {
1149                 // Same as above.
1150                 BOOST_ASSERT(false);
1151                 InsetOld * inset = createInset(bv_, ev);
1152                 if (!inset || !insertInset(inset))
1153                         delete inset;
1154                 break;
1155         }
1156
1157         case LFUN_FLOAT_LIST:
1158                 if (tclass.floats().typeExist(ev.argument)) {
1159                         InsetOld * inset = new InsetFloatList(ev.argument);
1160                         if (!insertInset(inset, tclass.defaultLayoutName()))
1161                                 delete inset;
1162                 } else {
1163                         lyxerr << "Non-existent float type: "
1164                                << ev.argument << endl;
1165                 }
1166                 break;
1167
1168         case LFUN_LAYOUT_PARAGRAPH: {
1169                 string data;
1170                 params2string(*bv_->getLyXText()->cursorPar(), data);
1171                 data = "show\n" + data;
1172                 bv_->owner()->getDialogs().show("paragraph", data);
1173                 break;
1174         }
1175
1176         case LFUN_PARAGRAPH_UPDATE:
1177                 updateParagraphDialog();
1178                 break;
1179
1180         case LFUN_PARAGRAPH_APPLY:
1181                 setParagraphParams(*bv_, ev.argument);
1182                 break;
1183
1184         case LFUN_THESAURUS_ENTRY: {
1185                 string arg = ev.argument;
1186
1187                 if (arg.empty()) {
1188                         arg = bv_->getLyXText()->selectionAsString(*buffer_,
1189                                                                    false);
1190
1191                         // FIXME
1192                         if (arg.size() > 100 || arg.empty()) {
1193                                 // Get word or selection
1194                                 bv_->getLyXText()->selectWordWhenUnderCursor(lyx::WHOLE_WORD);
1195                                 arg = bv_->getLyXText()->selectionAsString(*buffer_, false);
1196                                 // FIXME: where is getLyXText()->unselect(bv_) ?
1197                         }
1198                 }
1199
1200                 bv_->owner()->getDialogs().show("thesaurus", arg);
1201                 break;
1202         }
1203
1204         case LFUN_TRACK_CHANGES:
1205                 trackChanges();
1206                 break;
1207
1208         case LFUN_MERGE_CHANGES:
1209                 owner_->getDialogs().show("changes");
1210                 break;
1211
1212         case LFUN_ACCEPT_ALL_CHANGES: {
1213                 bv_->text()->setCursor(0, 0);
1214 #warning FIXME changes
1215                 while (lyx::find::findNextChange(bv_))
1216                         bv_->getLyXText()->acceptChange();
1217                 update();
1218                 break;
1219         }
1220
1221         case LFUN_REJECT_ALL_CHANGES: {
1222                 bv_->text()->setCursor(0, 0);
1223 #warning FIXME changes
1224                 while (lyx::find::findNextChange(bv_))
1225                         bv_->getLyXText()->rejectChange();
1226                 update();
1227                 break;
1228         }
1229
1230         case LFUN_ACCEPT_CHANGE: {
1231                 bv_->getLyXText()->acceptChange();
1232                 update();
1233                 break;
1234         }
1235
1236         case LFUN_REJECT_CHANGE: {
1237                 bv_->getLyXText()->rejectChange();
1238                 update();
1239                 break;
1240         }
1241
1242         case LFUN_WORD_FIND:
1243                 lyx::find::find(bv_, ev);
1244                 break;
1245
1246         case LFUN_WORD_REPLACE:
1247                 lyx::find::replace(bv_, ev);
1248                 break;
1249
1250         case LFUN_MARK_OFF:
1251                 bv_->clearSelection();
1252                 bv_->update();
1253                 bv_->resetAnchor();
1254                 ev.message(N_("Mark off"));
1255                 break;
1256
1257         case LFUN_MARK_ON:
1258                 bv_->clearSelection();
1259                 bv_->selection().mark(true);
1260                 bv_->update();
1261                 bv_->resetAnchor();
1262                 ev.message(N_("Mark on"));
1263                 break;
1264
1265         case LFUN_SETMARK:
1266                 bv_->clearSelection();
1267                 if (bv_->selection().mark()) {
1268                         ev.message(N_("Mark removed"));
1269                 } else {
1270                         bv_->selection().mark(true);
1271                         ev.message(N_("Mark set"));
1272                 }
1273                 bv_->resetAnchor();
1274                 bv_->update();
1275                 break;
1276
1277         case LFUN_UNKNOWN_ACTION:
1278                 ev.errorMessage(N_("Unknown function!"));
1279                 break;
1280
1281         default:
1282                 return bv_->getLyXText()->dispatch(*bv_, ev).dispatched();
1283         } // end of switch
1284
1285         return true;
1286 }
1287
1288
1289 bool BufferView::Pimpl::insertInset(InsetOld * inset, string const & lout)
1290 {
1291         // not quite sure if we want this...
1292         bv_->text()->recUndo(bv_->text()->cursor().par());
1293         freezeUndo();
1294
1295         bv_->clearSelection();
1296         if (!lout.empty()) {
1297                 bv_->text()->breakParagraph(bv_->buffer()->paragraphs());
1298
1299                 if (!bv_->text()->cursorPar()->empty()) {
1300                         bv_->text()->cursorLeft(bv_);
1301                         bv_->text()->breakParagraph(bv_->buffer()->paragraphs());
1302                 }
1303
1304                 string lres = lout;
1305                 LyXTextClass const & tclass = buffer_->params().getLyXTextClass();
1306                 bool hasLayout = tclass.hasLayout(lres);
1307
1308                 bv_->text()->setLayout(hasLayout ? lres : tclass.defaultLayoutName());
1309                 bv_->text()->setParagraph(Spacing(), LYX_ALIGN_LAYOUT, string(), 0);
1310         }
1311         bv_->fullCursor().innerText()->insertInset(inset);
1312         unFreezeUndo();
1313         return true;
1314 }
1315
1316
1317 bool BufferView::Pimpl::ChangeInsets(InsetOld::Code code,
1318                                      string const & from, string const & to)
1319 {
1320         bool need_update = false;
1321         CursorSlice cur = bv_->text()->cursor();
1322
1323         ParIterator end = bv_->buffer()->par_iterator_end();
1324         for (ParIterator it = bv_->buffer()->par_iterator_begin();
1325              it != end; ++it) {
1326                 bool changed_inset = false;
1327                 for (InsetList::iterator it2 = it->insetlist.begin();
1328                      it2 != it->insetlist.end(); ++it2) {
1329                         if (it2->inset->lyxCode() == code) {
1330                                 InsetCommand * inset = static_cast<InsetCommand *>(it2->inset);
1331                                 if (inset->getContents() == from) {
1332                                         inset->setContents(to);
1333                                         changed_inset = true;
1334                                 }
1335                         }
1336                 }
1337                 if (changed_inset) {
1338                         need_update = true;
1339
1340                         // FIXME
1341
1342                         // The test it.size() == 1 was needed to prevent crashes.
1343                         // How to set the cursor correctly when it.size() > 1 ??
1344                         if (it.size() == 1) {
1345                                 bv_->text()->setCursorIntern(bv_->text()->parOffset(it.pit()), 0);
1346                                 bv_->text()->redoParagraph(bv_->text()->cursorPar());
1347                         }
1348                 }
1349         }
1350         bv_->text()->setCursorIntern(cur.par(), cur.pos());
1351         return need_update;
1352 }
1353
1354
1355 void BufferView::Pimpl::updateParagraphDialog()
1356 {
1357         if (!bv_->owner()->getDialogs().visible("paragraph"))
1358                 return;
1359         Paragraph const & par = *bv_->getLyXText()->cursorPar();
1360         string data;
1361         params2string(par, data);
1362
1363         // Will the paragraph accept changes from the dialog?
1364         InsetOld * const inset = par.inInset();
1365         bool const accept =
1366                 !(inset && inset->forceDefaultParagraphs(inset));
1367
1368         data = "update " + tostr(accept) + '\n' + data;
1369         bv_->owner()->getDialogs().update("paragraph", data);
1370 }