src/BufferView_pimpl.C

   1 /**
   2  * \file BufferView_pimpl.C
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author Asger Alstrup
   7  * \author Alfredo Braunstein
   8  * \author Lars Gullik Bjønnes
   9  * \author Jean-Marc Lasgouttes
  10  * \author Angus Leeming
  11  * \author John Levon
  12  * \author André Pönitz
  13  * \author Dekel Tsur
  14  * \author Jürgen Vigna
  15  *
  16  * Full author contact details are available in file CREDITS.
  17  */
  18
  19 #include <config.h>
  20
  21 #include "BufferView_pimpl.h"
  22 #include "buffer.h"
  23 #include "buffer_funcs.h"
  24 #include "bufferlist.h"
  25 #include "bufferparams.h"
  26 #include "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/insetref.h"
  49
  50 #include "frontends/Alert.h"
  51 #include "frontends/Dialogs.h"
  52 #include "frontends/FileDialog.h"
  53 #include "frontends/LyXView.h"
  54 #include "frontends/LyXScreenFactory.h"
  55 #include "frontends/screen.h"
  56 #include "frontends/WorkArea.h"
  57 #include "frontends/WorkAreaFactory.h"
  58
  59 #include "graphics/Previews.h"
  60
  61 #include "support/filetools.h"
  62 #include "support/globbing.h"
  63 #include "support/path_defines.h"
  64 #include "support/tostr.h"
  65
  66 #include <boost/bind.hpp>
  67
  68 using lyx::pos_type;
  69
  70 using lyx::support::AddPath;
  71 using lyx::support::bformat;
  72 using lyx::support::FileFilterList;
  73 using lyx::support::FileSearch;
  74 using lyx::support::IsDirWriteable;
  75 using lyx::support::MakeDisplayPath;
  76 using lyx::support::strToUnsignedInt;
  77 using lyx::support::system_lyxdir;
  78
  79 using std::endl;
  80 using std::istringstream;
  81 using std::make_pair;
  82 using std::min;
  83 using std::string;
  84
  85
  86 extern BufferList bufferlist;
  87
  88
  89 namespace {
  90
  91 unsigned int const saved_positions_num = 20;
  92
  93 // All the below connection objects are needed because of a bug in some
  94 // versions of GCC (<=2.96 are on the suspects list.) By having and assigning
  95 // to these connections we avoid a segfault upon startup, and also at exit.
  96 // (Lgb)
  97
  98 boost::signals::connection dispatchcon;
  99 boost::signals::connection timecon;
 100 boost::signals::connection doccon;
 101 boost::signals::connection resizecon;
 102 boost::signals::connection kpresscon;
 103 boost::signals::connection selectioncon;
 104 boost::signals::connection lostcon;
 105
 106
 107 } // anon namespace
 108
 109
 110 BufferView::Pimpl::Pimpl(BufferView & bv, LyXView * owner,
 111              int xpos, int ypos, int width, int height)
 112         : bv_(&bv), owner_(owner), buffer_(0), cursor_timeout(400),
 113           using_xterm_cursor(false), cursor_(bv)
 114 {
 115         xsel_cache_.set = false;
 116
 117         workarea_.reset(WorkAreaFactory::create(xpos, ypos, width, height));
 118         screen_.reset(LyXScreenFactory::create(workarea()));
 119
 120         // Setup the signals
 121         doccon = workarea().scrollDocView
 122                 .connect(boost::bind(&BufferView::Pimpl::scrollDocView, this, _1));
 123         resizecon = workarea().workAreaResize
 124                 .connect(boost::bind(&BufferView::Pimpl::workAreaResize, this));
 125         dispatchcon = workarea().dispatch
 126                 .connect(boost::bind(&BufferView::Pimpl::workAreaDispatch, this, _1));
 127         kpresscon = workarea().workAreaKeyPress
 128                 .connect(boost::bind(&BufferView::Pimpl::workAreaKeyPress, this, _1, _2));
 129         selectioncon = workarea().selectionRequested
 130                 .connect(boost::bind(&BufferView::Pimpl::selectionRequested, this));
 131         lostcon = workarea().selectionLost
 132                 .connect(boost::bind(&BufferView::Pimpl::selectionLost, this));
 133
 134         timecon = cursor_timeout.timeout
 135                 .connect(boost::bind(&BufferView::Pimpl::cursorToggle, this));
 136         cursor_timeout.start();
 137         saved_positions.resize(saved_positions_num);
 138 }
 139
 140
 141 void BufferView::Pimpl::addError(ErrorItem const & ei)
 142 {
 143         errorlist_.push_back(ei);
 144 }
 145
 146
 147 void BufferView::Pimpl::showReadonly(bool)
 148 {
 149         owner_->updateWindowTitle();
 150         owner_->getDialogs().updateBufferDependent(false);
 151 }
 152
 153
 154 void BufferView::Pimpl::connectBuffer(Buffer & buf)
 155 {
 156         if (errorConnection_.connected())
 157                 disconnectBuffer();
 158
 159         errorConnection_ =
 160                 buf.error.connect(boost::bind(&BufferView::Pimpl::addError, this, _1));
 161         messageConnection_ =
 162                 buf.message.connect(boost::bind(&LyXView::message, owner_, _1));
 163         busyConnection_ =
 164                 buf.busy.connect(boost::bind(&LyXView::busy, owner_, _1));
 165         titleConnection_ =
 166                 buf.updateTitles.connect(boost::bind(&LyXView::updateWindowTitle, owner_));
 167         timerConnection_ =
 168                 buf.resetAutosaveTimers.connect(boost::bind(&LyXView::resetAutosaveTimer, owner_));
 169         readonlyConnection_ =
 170                 buf.readonly.connect(boost::bind(&BufferView::Pimpl::showReadonly, this, _1));
 171         closingConnection_ =
 172                 buf.closing.connect(boost::bind(&BufferView::Pimpl::buffer, this, (Buffer *)0));
 173 }
 174
 175
 176 void BufferView::Pimpl::disconnectBuffer()
 177 {
 178         errorConnection_.disconnect();
 179         messageConnection_.disconnect();
 180         busyConnection_.disconnect();
 181         titleConnection_.disconnect();
 182         timerConnection_.disconnect();
 183         readonlyConnection_.disconnect();
 184         closingConnection_.disconnect();
 185 }
 186
 187
 188 bool BufferView::Pimpl::newFile(string const & filename,
 189                                 string const & tname,
 190                                 bool isNamed)
 191 {
 192         Buffer * b = ::newFile(filename, tname, isNamed);
 193         buffer(b);
 194         return true;
 195 }
 196
 197
 198 bool BufferView::Pimpl::loadLyXFile(string const & filename, bool tolastfiles)
 199 {
 200         // get absolute path of file and add ".lyx" to the filename if
 201         // necessary
 202         string s = FileSearch(string(), filename, "lyx");
 203
 204         bool const found = !s.empty();
 205
 206         if (!found)
 207                 s = filename;
 208
 209         // file already open?
 210         if (bufferlist.exists(s)) {
 211                 string const file = MakeDisplayPath(s, 20);
 212                 string text = bformat(_("The document %1$s is already "
 213                                         "loaded.\n\nDo you want to revert "
 214                                         "to the saved version?"), file);
 215                 int const ret = Alert::prompt(_("Revert to saved document?"),
 216                         text, 0, 1,  _("&Revert"), _("&Switch to document"));
 217
 218                 if (ret != 0) {
 219                         buffer(bufferlist.getBuffer(s));
 220                         return true;
 221                 } else {
 222                         // FIXME: should be LFUN_REVERT
 223                         if (!bufferlist.close(bufferlist.getBuffer(s), false))
 224                                 return false;
 225                         // Fall through to new load. (Asger)
 226                 }
 227         }
 228
 229         Buffer * b;
 230
 231         if (found) {
 232                 b = bufferlist.newBuffer(s);
 233                 connectBuffer(*b);
 234                 if (!::loadLyXFile(b, s)) {
 235                         bufferlist.release(b);
 236                         return false;
 237                 }
 238         } else {
 239                 string text = bformat(_("The document %1$s does not yet "
 240                                         "exist.\n\nDo you want to create "
 241                                         "a new document?"), s);
 242                 int const ret = Alert::prompt(_("Create new document?"),
 243                          text, 0, 1, _("&Create"), _("Cancel"));
 244
 245                 if (ret == 0)
 246                         b = ::newFile(s, string(), true);
 247                 else
 248                         return false;
 249         }
 250
 251         buffer(b);
 252         bv_->showErrorList(_("Parse"));
 253
 254         if (tolastfiles)
 255                 LyX::ref().lastfiles().newFile(b->fileName());
 256
 257         return true;
 258 }
 259
 260
 261 WorkArea & BufferView::Pimpl::workarea() const
 262 {
 263         return *workarea_.get();
 264 }
 265
 266
 267 LyXScreen & BufferView::Pimpl::screen() const
 268 {
 269         return *screen_.get();
 270 }
 271
 272
 273 Painter & BufferView::Pimpl::painter() const
 274 {
 275         return workarea().getPainter();
 276 }
 277
 278
 279 void BufferView::Pimpl::top_y(int y)
 280 {
 281         top_y_ = y;
 282 }
 283
 284
 285 int BufferView::Pimpl::top_y() const
 286 {
 287         return top_y_;
 288 }
 289
 290
 291 void BufferView::Pimpl::buffer(Buffer * b)
 292 {
 293         lyxerr[Debug::INFO] << "Setting buffer in BufferView ("
 294                             << b << ')' << endl;
 295         if (buffer_) {
 296                 disconnectBuffer();
 297                 //delete bv_->text();
 298                 //bv_->setText(0);
 299         }
 300
 301         // reset old cursor
 302         cursor_.reset();
 303
 304         // set current buffer
 305         buffer_ = b;
 306
 307         top_y_ = 0;
 308
 309         // if we're quitting lyx, don't bother updating stuff
 310         if (quitting)
 311                 return;
 312
 313         // if we are closing the buffer, use the first buffer as current
 314         if (!buffer_)
 315                 buffer_ = bufferlist.first();
 316
 317         if (buffer_) {
 318                 lyxerr[Debug::INFO] << "Buffer addr: " << buffer_ << endl;
 319                 connectBuffer(*buffer_);
 320
 321                 buffer_->text().init(bv_);
 322                 buffer_->text().textwidth_ = workarea().workWidth();
 323                 buffer_->text().fullRebreak();
 324
 325                 // If we don't have a text object for this, we make one
 326                 if (bv_->text() == 0)
 327                         resizeCurrentBuffer();
 328
 329                 // Buffer-dependent dialogs should be updated or
 330                 // hidden. This should go here because some dialogs (eg ToC)
 331                 // require bv_->text.
 332                 owner_->getDialogs().updateBufferDependent(true);
 333         } else {
 334                 lyxerr[Debug::INFO] << "  No Buffer!" << endl;
 335                 owner_->getDialogs().hideBufferDependent();
 336         }
 337
 338         update();
 339         updateScrollbar();
 340         owner_->updateMenubar();
 341         owner_->updateToolbar();
 342         owner_->updateLayoutChoice();
 343         owner_->updateWindowTitle();
 344
 345         // Don't forget to update the Layout
 346         if (buffer_)
 347                 owner_->setLayout(bv_->text()->getPar(0)->layout()->name());
 348
 349         if (lyx::graphics::Previews::activated() && buffer_)
 350                 lyx::graphics::Previews::get().generateBufferPreviews(*buffer_);
 351 }
 352
 353
 354 bool BufferView::Pimpl::fitCursor()
 355 {
 356         if (screen().fitCursor(bv_)) {
 357                 updateScrollbar();
 358                 return true;
 359         }
 360         return false;
 361 }
 362
 363
 364 void BufferView::Pimpl::redoCurrentBuffer()
 365 {
 366         lyxerr[Debug::INFO] << "BufferView::redoCurrentBuffer" << endl;
 367         if (buffer_ && bv_->text()) {
 368                 resizeCurrentBuffer();
 369                 updateScrollbar();
 370                 owner_->updateLayoutChoice();
 371         }
 372 }
 373
 374
 375 void BufferView::Pimpl::resizeCurrentBuffer()
 376 {
 377         lyxerr[Debug::INFO] << "resizeCurrentBuffer" << endl;
 378
 379         int par = -1;
 380         int selstartpar = -1;
 381         int selendpar = -1;
 382
 383         pos_type pos = 0;
 384         pos_type selstartpos = 0;
 385         pos_type selendpos = 0;
 386         bool sel = false;
 387         bool mark_set  = false;
 388
 389         owner_->busy(true);
 390
 391         owner_->message(_("Formatting document..."));
 392
 393         LyXText * text = bv_->text();
 394         lyxerr << "### resizeCurrentBuffer: text " << text << endl;
 395         if (!text)
 396                 return;
 397
 398         LCursor & cur = bv_->cursor();
 399         par = cur.par();
 400         pos = cur.pos();
 401         selstartpar = cur.selBegin().par();
 402         selstartpos = cur.selBegin().pos();
 403         selendpar = cur.selEnd().par();
 404         selendpos = cur.selEnd().pos();
 405         sel = cur.selection();
 406         mark_set = cur.mark();
 407         text->textwidth_ = bv_->workWidth();
 408         text->fullRebreak();
 409         update();
 410
 411         if (par != -1) {
 412                 cur.selection() = true;
 413                 // At this point just to avoid the Delete-Empty-Paragraph-
 414                 // Mechanism when setting the cursor.
 415                 cur.mark() = mark_set;
 416                 if (sel) {
 417                         text->setCursor(cur, selstartpar, selstartpos);
 418                         cur.resetAnchor();
 419                         text->setCursor(cur, selendpar, selendpos);
 420                         cur.setSelection();
 421                         text->setCursor(cur, par, pos);
 422                 } else {
 423                         text->setCursor(cur, par, pos);
 424                         cur.resetAnchor();
 425                         cur.selection() = false;
 426                 }
 427         }
 428
 429         fitCursor();
 430
 431         switchKeyMap();
 432         owner_->busy(false);
 433
 434         // reset the "Formatting..." message
 435         owner_->clearMessage();
 436
 437         updateScrollbar();
 438 }
 439
 440
 441 void BufferView::Pimpl::updateScrollbar()
 442 {
 443         if (!bv_->text()) {
 444                 lyxerr[Debug::GUI] << "no text in updateScrollbar" << endl;
 445                 workarea().setScrollbarParams(0, 0, 0);
 446                 return;
 447         }
 448
 449         LyXText const & t = *bv_->text();
 450
 451         lyxerr[Debug::GUI] << "Updating scrollbar: h " << t.height << ", top_y() "
 452                 << top_y() << ", default height " << defaultRowHeight() << endl;
 453
 454         workarea().setScrollbarParams(t.height, top_y(), defaultRowHeight());
 455 }
 456
 457
 458 void BufferView::Pimpl::scrollDocView(int value)
 459 {
 460         lyxerr[Debug::GUI] << "scrollDocView of " << value << endl;
 461
 462         if (!buffer_)
 463                 return;
 464
 465         screen().hideCursor();
 466
 467         top_y(value);
 468         screen().redraw(*bv_);
 469
 470         if (!lyxrc.cursor_follows_scrollbar)
 471                 return;
 472
 473         int const height = defaultRowHeight();
 474         int const first = top_y() + height;
 475         int const last = top_y() + workarea().workHeight() - height;
 476
 477         bv_->cursor().reset();
 478         LyXText * text = bv_->text();
 479         CursorSlice & cur = bv_->cursor().cursor_.front();
 480         int y = text->cursorY(cur);
 481         if (y < first)
 482                 text->setCursorFromCoordinates(bv_->cursor(), 0, first);
 483         else if (y > last)
 484                 text->setCursorFromCoordinates(bv_->cursor(), 0, last);
 485
 486         owner_->updateLayoutChoice();
 487 }
 488
 489
 490 void BufferView::Pimpl::scroll(int lines)
 491 {
 492         if (!buffer_)
 493                 return;
 494
 495         LyXText const * t = bv_->text();
 496         int const line_height = defaultRowHeight();
 497
 498         // The new absolute coordinate
 499         int new_top_y = top_y() + lines * line_height;
 500
 501         // Restrict to a valid value
 502         new_top_y = std::min(t->height - 4 * line_height, new_top_y);
 503         new_top_y = std::max(0, new_top_y);
 504
 505         scrollDocView(new_top_y);
 506
 507         // Update the scrollbar.
 508         workarea().setScrollbarParams(t->height, top_y(), defaultRowHeight());
 509 }
 510
 511
 512 void BufferView::Pimpl::workAreaKeyPress(LyXKeySymPtr key,
 513                                          key_modifier::state state)
 514 {
 515         bv_->owner()->getLyXFunc().processKeySym(key, state);
 516
 517         /* This is perhaps a bit of a hack. When we move
 518          * around, or type, it's nice to be able to see
 519          * the cursor immediately after the keypress. So
 520          * we reset the toggle timeout and force the visibility
 521          * of the cursor. Note we cannot do this inside
 522          * dispatch() itself, because that's called recursively.
 523          */
 524         if (available()) {
 525                 cursor_timeout.restart();
 526                 screen().showCursor(*bv_);
 527         }
 528 }
 529
 530
 531 void BufferView::Pimpl::selectionRequested()
 532 {
 533         static string sel;
 534
 535         if (!available())
 536                 return;
 537
 538         LCursor & cur = bv_->cursor();
 539
 540         if (!cur.selection()) {
 541                 xsel_cache_.set = false;
 542                 return;
 543         }
 544
 545         if (!xsel_cache_.set ||
 546             cur.cursor_.back() != xsel_cache_.cursor ||
 547             cur.anchor_.back() != xsel_cache_.anchor)
 548         {
 549                 xsel_cache_.cursor = cur.cursor_.back();
 550                 xsel_cache_.anchor = cur.anchor_.back();
 551                 xsel_cache_.set = cur.selection();
 552                 sel = cur.selectionAsString(false);
 553                 if (!sel.empty())
 554                         workarea().putClipboard(sel);
 555         }
 556 }
 557
 558
 559 void BufferView::Pimpl::selectionLost()
 560 {
 561         if (available()) {
 562                 screen().hideCursor();
 563                 bv_->cursor().clearSelection();
 564                 xsel_cache_.set = false;
 565         }
 566 }
 567
 568
 569 void BufferView::Pimpl::workAreaResize()
 570 {
 571         static int work_area_width;
 572         static int work_area_height;
 573
 574         bool const widthChange = workarea().workWidth() != work_area_width;
 575         bool const heightChange = workarea().workHeight() != work_area_height;
 576
 577         // update from work area
 578         work_area_width = workarea().workWidth();
 579         work_area_height = workarea().workHeight();
 580
 581         if (buffer_ && widthChange) {
 582                 // The visible LyXView need a resize
 583                 resizeCurrentBuffer();
 584         }
 585
 586         if (widthChange || heightChange)
 587                 update();
 588
 589         // always make sure that the scrollbar is sane.
 590         updateScrollbar();
 591         owner_->updateLayoutChoice();
 592 }
 593
 594
 595 void BufferView::Pimpl::update()
 596 {
 597         //lyxerr << "BufferView::update()" << endl;
 598         // fix cursor coordinate cache in case something went wrong
 599
 600         // check needed to survive LyX startup
 601         if (bv_->getLyXText()) {
 602                 // update all 'visible' paragraphs
 603                 ParagraphList::iterator beg;
 604                 ParagraphList::iterator end;
 605                 getParsInRange(buffer_->paragraphs(),
 606                                top_y(), top_y() + workarea().workHeight(),
 607                                beg, end);
 608                 bv_->text()->redoParagraphs(beg, end);
 609                 updateScrollbar();
 610         }
 611         screen().redraw(*bv_);
 612 }
 613
 614
 615 // Callback for cursor timer
 616 void BufferView::Pimpl::cursorToggle()
 617 {
 618         if (!buffer_) {
 619                 cursor_timeout.restart();
 620                 return;
 621         }
 622
 623         screen().toggleCursor(*bv_);
 624         cursor_timeout.restart();
 625 }
 626
 627
 628 bool BufferView::Pimpl::available() const
 629 {
 630         return buffer_ && bv_->text();
 631 }
 632
 633
 634 Change const BufferView::Pimpl::getCurrentChange()
 635 {
 636         if (!bv_->buffer()->params().tracking_changes)
 637                 return Change(Change::UNCHANGED);
 638
 639         LyXText * text = bv_->getLyXText();
 640         LCursor & cur = bv_->cursor();
 641
 642         if (!cur.selection())
 643                 return Change(Change::UNCHANGED);
 644
 645         return text->getPar(cur.selBegin())
 646                 ->lookupChangeFull(cur.selBegin().pos());
 647 }
 648
 649
 650 void BufferView::Pimpl::savePosition(unsigned int i)
 651 {
 652         if (i >= saved_positions_num)
 653                 return;
 654         saved_positions[i] = Position(buffer_->fileName(),
 655                                       bv_->text()->cursorPar()->id(),
 656                                       bv_->text()->cursor().pos());
 657         if (i > 0)
 658                 owner_->message(bformat(_("Saved bookmark %1$s"), tostr(i)));
 659 }
 660
 661
 662 void BufferView::Pimpl::restorePosition(unsigned int i)
 663 {
 664         if (i >= saved_positions_num)
 665                 return;
 666
 667         string const fname = saved_positions[i].filename;
 668
 669         bv_->cursor().clearSelection();
 670
 671         if (fname != buffer_->fileName()) {
 672                 Buffer * b = 0;
 673                 if (bufferlist.exists(fname))
 674                         b = bufferlist.getBuffer(fname);
 675                 else {
 676                         b = bufferlist.newBuffer(fname);
 677                         ::loadLyXFile(b, fname); // don't ask, just load it
 678                 }
 679                 if (b)
 680                         buffer(b);
 681         }
 682
 683         ParIterator par = buffer_->getParFromID(saved_positions[i].par_id);
 684         if (par == buffer_->par_iterator_end())
 685                 return;
 686
 687         bv_->text()->setCursor(
 688                 bv_->cursor(),
 689                 bv_->text()->parOffset(par.pit()),
 690                 min(par->size(), saved_positions[i].par_pos));
 691
 692         if (i > 0)
 693                 owner_->message(bformat(_("Moved to bookmark %1$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_->cursor().clearSelection();
 724         int const half_height = workarea().workHeight() / 2;
 725         int new_y = text->cursorY(bv_->cursor().cursor_.front()) - half_height;
 726         if (new_y < 0)
 727                 new_y = 0;
 728
 729         // FIXME: look at this comment again ...
 730         // This updates top_y() but means the fitCursor() call
 731         // from the update(FITCUR) doesn't realise that we might
 732         // have moved (e.g. from GOTOPARAGRAPH), so doesn't cause
 733         // the scrollbar to be updated as it should, so we have
 734         // to do it manually. Any operation that does a center()
 735         // and also might have moved top_y() must make sure to call
 736         // updateScrollbar() currently. Never mind that this is a
 737         // pretty obfuscated way of updating text->top_y()
 738         top_y(new_y);
 739 }
 740
 741
 742 void BufferView::Pimpl::stuffClipboard(string const & stuff) const
 743 {
 744         workarea().putClipboard(stuff);
 745 }
 746
 747
 748 InsetBase * BufferView::Pimpl::getInsetByCode(InsetBase::Code code)
 749 {
 750 #warning Does not work for mathed
 751         // Ok, this is a little bit too brute force but it
 752         // should work for now. Better infrastructure is coming. (Lgb)
 753
 754         Buffer * buf = bv_->buffer();
 755         Buffer::inset_iterator beg = buf->inset_iterator_begin();
 756         Buffer::inset_iterator end = buf->inset_iterator_end();
 757
 758         bool cursor_par_seen = false;
 759
 760         LCursor & cur = bv_->cursor();
 761         ParagraphList::iterator pit =  bv_->getLyXText()->getPar(cur.par());
 762
 763         for (; beg != end; ++beg) {
 764                 if (beg.getPar() == pit)
 765                         cursor_par_seen = true;
 766                 if (cursor_par_seen) {
 767                         if (beg.getPar() == pit && beg.getPos() >= cur.pos())
 768                                 break;
 769                         if (beg.getPar() != pit)
 770                                 break;
 771                 }
 772         }
 773         if (beg != end) {
 774                 // Now find the first inset that matches code.
 775                 for (; beg != end; ++beg) {
 776                         if (beg->lyxCode() == code)
 777                                 return &(*beg);
 778                 }
 779         }
 780         return 0;
 781 }
 782
 783
 784 void BufferView::Pimpl::MenuInsertLyXFile(string const & filenm)
 785 {
 786         string filename = filenm;
 787
 788         if (filename.empty()) {
 789                 // Launch a file browser
 790                 string initpath = lyxrc.document_path;
 791
 792                 if (available()) {
 793                         string const trypath = owner_->buffer()->filePath();
 794                         // If directory is writeable, use this as default.
 795                         if (IsDirWriteable(trypath))
 796                                 initpath = trypath;
 797                 }
 798
 799                 FileDialog fileDlg(_("Select LyX document to insert"),
 800                         LFUN_FILE_INSERT,
 801                         make_pair(string(_("Documents|#o#O")),
 802                                   string(lyxrc.document_path)),
 803                         make_pair(string(_("Examples|#E#e")),
 804                                   string(AddPath(system_lyxdir(), "examples"))));
 805
 806                 FileDialog::Result result =
 807                         fileDlg.open(initpath,
 808                                      FileFilterList(_("LyX Documents (*.lyx)")),
 809                                      string());
 810
 811                 if (result.first == FileDialog::Later)
 812                         return;
 813
 814                 filename = result.second;
 815
 816                 // check selected filename
 817                 if (filename.empty()) {
 818                         owner_->message(_("Canceled."));
 819                         return;
 820                 }
 821         }
 822
 823         // get absolute path of file and add ".lyx" to the filename if
 824         // necessary
 825         filename = FileSearch(string(), filename, "lyx");
 826
 827         string const disp_fn = MakeDisplayPath(filename);
 828         owner_->message(bformat(_("Inserting document %1$s..."), disp_fn));
 829         if (bv_->insertLyXFile(filename))
 830                 owner_->message(bformat(_("Document %1$s inserted."),
 831                                         disp_fn));
 832         else
 833                 owner_->message(bformat(_("Could not insert document %1$s"),
 834                                         disp_fn));
 835 }
 836
 837
 838 void BufferView::Pimpl::trackChanges()
 839 {
 840         Buffer * buf = bv_->buffer();
 841         bool const tracking = buf->params().tracking_changes;
 842
 843         if (!tracking) {
 844                 ParIterator const end = buf->par_iterator_end();
 845                 for (ParIterator it = buf->par_iterator_begin(); it != end; ++it)
 846                         it->trackChanges();
 847                 buf->params().tracking_changes = true;
 848
 849                 // we cannot allow undos beyond the freeze point
 850                 buf->undostack().clear();
 851         } else {
 852                 update();
 853                 bv_->text()->setCursor(bv_->cursor(), 0, 0);
 854 #warning changes FIXME
 855                 bool found = lyx::find::findNextChange(bv_);
 856                 if (found) {
 857                         owner_->getDialogs().show("changes");
 858                         return;
 859                 }
 860
 861                 ParIterator const end = buf->par_iterator_end();
 862                 for (ParIterator it = buf->par_iterator_begin(); it != end; ++it)
 863                         it->untrackChanges();
 864                 buf->params().tracking_changes = false;
 865         }
 866
 867         buf->redostack().clear();
 868 }
 869
 870
 871 bool BufferView::Pimpl::workAreaDispatch(FuncRequest const & cmd0)
 872 {
 873         //
 874         // this is only called for mouse related events.
 875         //
 876         FuncRequest cmd = cmd0;
 877         cmd.y += bv_->top_y();
 878         //lyxerr << "*** workAreaDispatch: request: " << cmd << std::endl;
 879         LCursor cur(*bv_);
 880         cur.selection() = bv_->cursor().selection();
 881         switch (cmd.action) {
 882
 883 #if 0
 884         case LFUN_MOUSE_MOTION: {
 885                 if (!available())
 886                         return false;
 887                 FuncRequest cmd1 = cmd;
 888                 InsetBase * inset = cur.inset();
 889                 DispatchResult res;
 890                 if (inset) {
 891                         res = inset->dispatch(cur, cmd);
 892                 } else {
 893                         res = bv_->text()->dispatch(cur, cmd);
 894                 }
 895
 896                 if (fitCursor() || res.update()) {
 897                         update();
 898                         cur.updatePos();
 899                 }
 900                 return true;
 901         }
 902 #else
 903         case LFUN_MOUSE_MOTION:
 904 #endif
 905
 906         case LFUN_MOUSE_PRESS:
 907         case LFUN_MOUSE_RELEASE:
 908         case LFUN_MOUSE_DOUBLE:
 909         case LFUN_MOUSE_TRIPLE: {
 910                 // We pass those directly to the Bufferview, since
 911                 // otherwise selection handling breaks down
 912
 913                 // Doesn't go through lyxfunc, so we need to update
 914                 // the layout choice etc. ourselves
 915
 916                 // e.g. Qt mouse press when no buffer
 917                 if (!available())
 918                         return false;
 919
 920                 screen().hideCursor();
 921
 922                 // either the inset under the cursor or the
 923                 // surrounding LyXText will handle this event.
 924
 925                 // built temporary path to inset
 926                 InsetBase * inset = bv_->text()->editXY(cur, cmd.x, cmd.y);
 927                 lyxerr << "hit inset at tip: " << inset << endl;
 928                 lyxerr << "created temp cursor:\n" << cur << endl;
 929
 930                 // Try to dispatch to an non-editable inset near this position
 931                 DispatchResult res;
 932                 if (inset)
 933                         inset->dispatch(cur, cmd);
 934
 935                 // Dispatch to the temp cursor.
 936                 // An inset (or LyXText) can assign this to bv->cursor()
 937                 // if it wishes to do so.
 938                 if (!res.dispatched())
 939                         res = cur.dispatch(cmd);
 940
 941                 if (fitCursor() || res.update())
 942                         update();
 943
 944                 // see workAreaKeyPress
 945                 cursor_timeout.restart();
 946                 screen().showCursor(*bv_);
 947
 948                 // skip these when selecting
 949                 if (cmd.action != LFUN_MOUSE_MOTION) {
 950                         owner_->updateLayoutChoice();
 951                         owner_->updateToolbar();
 952                 }
 953
 954                 // slight hack: this is only called currently when we
 955                 // clicked somewhere, so we force through the display
 956                 // of the new status here.
 957                 owner_->clearMessage();
 958                 return true;
 959         }
 960
 961         default:
 962                 BOOST_ASSERT(false);
 963         }
 964         return true;
 965 }
 966
 967
 968 bool BufferView::Pimpl::dispatch(FuncRequest const & cmd)
 969 {
 970         //lyxerr << "*** BufferView::Pimpl: request: " << cmd << std::endl;
 971         // Make sure that the cached BufferView is correct.
 972         lyxerr[Debug::ACTION] << "BufferView::Pimpl::Dispatch:"
 973                 << " action[" << cmd.action << ']'
 974                 << " arg[" << cmd.argument << ']'
 975                 << " x[" << cmd.x << ']'
 976                 << " y[" << cmd.y << ']'
 977                 << " button[" << cmd.button() << ']'
 978                 << endl;
 979
 980         LCursor & cur = bv_->cursor();
 981
 982         switch (cmd.action) {
 983
 984         case LFUN_UNDO:
 985                 if (available()) {
 986                         cur.message(_("Undo"));
 987                         cur.clearSelection();
 988                         if (!textUndo(*bv_))
 989                                 cur.message(_("No further undo information"));
 990                         update();
 991                         switchKeyMap();
 992                 }
 993                 break;
 994
 995         case LFUN_REDO:
 996                 if (available()) {
 997                         cur.message(_("Redo"));
 998                         cur.clearSelection();
 999                         if (!textRedo(*bv_))
1000                                 cur.message(_("No further redo information"));
1001                         update();
1002                         switchKeyMap();
1003                 }
1004                 break;
1005
1006         case LFUN_FILE_INSERT:
1007                 MenuInsertLyXFile(cmd.argument);
1008                 break;
1009
1010         case LFUN_FILE_INSERT_ASCII_PARA:
1011                 InsertAsciiFile(bv_, cmd.argument, true);
1012                 break;
1013
1014         case LFUN_FILE_INSERT_ASCII:
1015                 InsertAsciiFile(bv_, cmd.argument, false);
1016                 break;
1017
1018         case LFUN_FONT_STATE:
1019                 cur.message(cur.currentState());
1020                 break;
1021
1022         case LFUN_INSERT_LABEL: {
1023                 // Try and generate a valid label
1024                 string const contents = cmd.argument.empty() ?
1025                         cur.getPossibleLabel() : cmd.argument;
1026                 InsetCommandParams icp("label", contents);
1027                 string data = InsetCommandMailer::params2string("label", icp);
1028                 owner_->getDialogs().show("label", data, 0);
1029                 break;
1030         }
1031
1032         case LFUN_BOOKMARK_SAVE:
1033                 savePosition(strToUnsignedInt(cmd.argument));
1034                 break;
1035
1036         case LFUN_BOOKMARK_GOTO:
1037                 restorePosition(strToUnsignedInt(cmd.argument));
1038                 break;
1039
1040         case LFUN_REF_GOTO: {
1041                 string label = cmd.argument;
1042                 if (label.empty()) {
1043                         InsetRef * inset =
1044                                 static_cast<InsetRef*>(getInsetByCode(InsetBase::REF_CODE));
1045                         if (inset) {
1046                                 label = inset->getContents();
1047                                 savePosition(0);
1048                         }
1049                 }
1050
1051                 if (!label.empty())
1052                         bv_->gotoLabel(label);
1053                 break;
1054         }
1055
1056         case LFUN_TRACK_CHANGES:
1057                 trackChanges();
1058                 break;
1059
1060         case LFUN_MERGE_CHANGES:
1061                 owner_->getDialogs().show("changes");
1062                 break;
1063
1064         case LFUN_ACCEPT_ALL_CHANGES: {
1065                 bv_->cursor().reset();
1066 #warning FIXME changes
1067                 while (lyx::find::findNextChange(bv_))
1068                         bv_->getLyXText()->acceptChange(bv_->cursor());
1069                 update();
1070                 break;
1071         }
1072
1073         case LFUN_REJECT_ALL_CHANGES: {
1074                 bv_->cursor().reset();
1075 #warning FIXME changes
1076                 while (lyx::find::findNextChange(bv_))
1077                         bv_->getLyXText()->rejectChange(bv_->cursor());
1078                 update();
1079                 break;
1080         }
1081
1082         case LFUN_WORD_FIND:
1083                 lyx::find::find(bv_, cmd);
1084                 break;
1085
1086         case LFUN_WORD_REPLACE:
1087                 lyx::find::replace(bv_, cmd);
1088                 break;
1089
1090         case LFUN_MARK_OFF:
1091                 cur.clearSelection();
1092                 update();
1093                 cur.resetAnchor();
1094                 cur.message(N_("Mark off"));
1095                 break;
1096
1097         case LFUN_MARK_ON:
1098                 cur.clearSelection();
1099                 cur.mark() = true;
1100                 update();
1101                 cur.resetAnchor();
1102                 cur.message(N_("Mark on"));
1103                 break;
1104
1105         case LFUN_SETMARK:
1106                 cur.clearSelection();
1107                 if (cur.mark()) {
1108                         cur.message(N_("Mark removed"));
1109                 } else {
1110                         cur.mark() = true;
1111                         cur.message(N_("Mark set"));
1112                 }
1113                 cur.resetAnchor();
1114                 update();
1115                 break;
1116
1117         case LFUN_UNKNOWN_ACTION:
1118                 cur.errorMessage(N_("Unknown function!"));
1119                 break;
1120
1121         case LFUN_CENTER:
1122                 bv_->center();
1123                 break;
1124
1125         default:
1126                 return false;
1127         }
1128
1129         return true;
1130 }