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/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 "support/filetools.h"
  63 #include "support/globbing.h"
  64 #include "support/path_defines.h"
  65 #include "support/tostr.h"
  66
  67 #include <boost/bind.hpp>
  68
  69 using bv_funcs::currentState;
  70
  71 using lyx::pos_type;
  72
  73 using lyx::support::AddPath;
  74 using lyx::support::bformat;
  75 using lyx::support::FileFilterList;
  76 using lyx::support::FileSearch;
  77 using lyx::support::IsDirWriteable;
  78 using lyx::support::MakeDisplayPath;
  79 using lyx::support::strToUnsignedInt;
  80 using lyx::support::system_lyxdir;
  81
  82 using std::endl;
  83 using std::make_pair;
  84 using std::min;
  85 using std::string;
  86
  87
  88 extern BufferList bufferlist;
  89
  90
  91 namespace {
  92
  93 unsigned int const saved_positions_num = 20;
  94
  95 // All the below connection objects are needed because of a bug in some
  96 // versions of GCC (<=2.96 are on the suspects list.) By having and assigning
  97 // to these connections we avoid a segfault upon startup, and also at exit.
  98 // (Lgb)
  99
 100 boost::signals::connection dispatchcon;
 101 boost::signals::connection timecon;
 102 boost::signals::connection doccon;
 103 boost::signals::connection resizecon;
 104 boost::signals::connection kpresscon;
 105 boost::signals::connection selectioncon;
 106 boost::signals::connection lostcon;
 107
 108
 109 } // anon namespace
 110
 111
 112 BufferView::Pimpl::Pimpl(BufferView & bv, LyXView * owner,
 113              int xpos, int ypos, int width, int height)
 114         : bv_(&bv), owner_(owner), buffer_(0), cursor_timeout(400),
 115           using_xterm_cursor(false), cursor_(bv)
 116 {
 117         xsel_cache_.set = false;
 118
 119         workarea_.reset(WorkAreaFactory::create(xpos, ypos, width, height));
 120         screen_.reset(LyXScreenFactory::create(workarea()));
 121
 122         // Setup the signals
 123         doccon = workarea().scrollDocView
 124                 .connect(boost::bind(&BufferView::Pimpl::scrollDocView, this, _1));
 125         resizecon = workarea().workAreaResize
 126                 .connect(boost::bind(&BufferView::Pimpl::workAreaResize, this));
 127         dispatchcon = workarea().dispatch
 128                 .connect(boost::bind(&BufferView::Pimpl::workAreaDispatch, this, _1));
 129         kpresscon = workarea().workAreaKeyPress
 130                 .connect(boost::bind(&BufferView::Pimpl::workAreaKeyPress, this, _1, _2));
 131         selectioncon = workarea().selectionRequested
 132                 .connect(boost::bind(&BufferView::Pimpl::selectionRequested, this));
 133         lostcon = workarea().selectionLost
 134                 .connect(boost::bind(&BufferView::Pimpl::selectionLost, this));
 135
 136         timecon = cursor_timeout.timeout
 137                 .connect(boost::bind(&BufferView::Pimpl::cursorToggle, this));
 138         cursor_timeout.start();
 139         saved_positions.resize(saved_positions_num);
 140 }
 141
 142
 143 void BufferView::Pimpl::addError(ErrorItem const & ei)
 144 {
 145         errorlist_.push_back(ei);
 146 }
 147
 148
 149 void BufferView::Pimpl::showReadonly(bool)
 150 {
 151         owner_->updateWindowTitle();
 152         owner_->getDialogs().updateBufferDependent(false);
 153 }
 154
 155
 156 void BufferView::Pimpl::connectBuffer(Buffer & buf)
 157 {
 158         if (errorConnection_.connected())
 159                 disconnectBuffer();
 160
 161         errorConnection_ =
 162                 buf.error.connect(boost::bind(&BufferView::Pimpl::addError, this, _1));
 163         messageConnection_ =
 164                 buf.message.connect(boost::bind(&LyXView::message, owner_, _1));
 165         busyConnection_ =
 166                 buf.busy.connect(boost::bind(&LyXView::busy, owner_, _1));
 167         titleConnection_ =
 168                 buf.updateTitles.connect(boost::bind(&LyXView::updateWindowTitle, owner_));
 169         timerConnection_ =
 170                 buf.resetAutosaveTimers.connect(boost::bind(&LyXView::resetAutosaveTimer, owner_));
 171         readonlyConnection_ =
 172                 buf.readonly.connect(boost::bind(&BufferView::Pimpl::showReadonly, this, _1));
 173         closingConnection_ =
 174                 buf.closing.connect(boost::bind(&BufferView::Pimpl::buffer, this, (Buffer *)0));
 175 }
 176
 177
 178 void BufferView::Pimpl::disconnectBuffer()
 179 {
 180         errorConnection_.disconnect();
 181         messageConnection_.disconnect();
 182         busyConnection_.disconnect();
 183         titleConnection_.disconnect();
 184         timerConnection_.disconnect();
 185         readonlyConnection_.disconnect();
 186         closingConnection_.disconnect();
 187 }
 188
 189
 190 bool BufferView::Pimpl::newFile(string const & filename,
 191                                 string const & tname,
 192                                 bool isNamed)
 193 {
 194         Buffer * b = ::newFile(filename, tname, isNamed);
 195         buffer(b);
 196         return true;
 197 }
 198
 199
 200 bool BufferView::Pimpl::loadLyXFile(string const & filename, bool tolastfiles)
 201 {
 202         // get absolute path of file and add ".lyx" to the filename if
 203         // necessary
 204         string s = FileSearch(string(), filename, "lyx");
 205
 206         bool const found = !s.empty();
 207
 208         if (!found)
 209                 s = filename;
 210
 211         // file already open?
 212         if (bufferlist.exists(s)) {
 213                 string const file = MakeDisplayPath(s, 20);
 214                 string text = bformat(_("The document %1$s is already "
 215                                         "loaded.\n\nDo you want to revert "
 216                                         "to the saved version?"), file);
 217                 int const ret = Alert::prompt(_("Revert to saved document?"),
 218                         text, 0, 1,  _("&Revert"), _("&Switch to document"));
 219
 220                 if (ret != 0) {
 221                         buffer(bufferlist.getBuffer(s));
 222                         return true;
 223                 } else {
 224                         // FIXME: should be LFUN_REVERT
 225                         if (!bufferlist.close(bufferlist.getBuffer(s), false))
 226                                 return false;
 227                         // Fall through to new load. (Asger)
 228                 }
 229         }
 230
 231         Buffer * b;
 232
 233         if (found) {
 234                 b = bufferlist.newBuffer(s);
 235                 connectBuffer(*b);
 236                 if (!::loadLyXFile(b, s)) {
 237                         bufferlist.release(b);
 238                         return false;
 239                 }
 240         } else {
 241                 string text = bformat(_("The document %1$s does not yet "
 242                                         "exist.\n\nDo you want to create "
 243                                         "a new document?"), s);
 244                 int const ret = Alert::prompt(_("Create new document?"),
 245                          text, 0, 1, _("&Create"), _("Cancel"));
 246
 247                 if (ret == 0)
 248                         b = ::newFile(s, string(), true);
 249                 else
 250                         return false;
 251         }
 252
 253         buffer(b);
 254         bv_->showErrorList(_("Parse"));
 255
 256         if (tolastfiles)
 257                 LyX::ref().lastfiles().newFile(b->fileName());
 258
 259         return true;
 260 }
 261
 262
 263 WorkArea & BufferView::Pimpl::workarea() const
 264 {
 265         return *workarea_.get();
 266 }
 267
 268
 269 LyXScreen & BufferView::Pimpl::screen() const
 270 {
 271         return *screen_.get();
 272 }
 273
 274
 275 Painter & BufferView::Pimpl::painter() const
 276 {
 277         return workarea().getPainter();
 278 }
 279
 280
 281 void BufferView::Pimpl::top_y(int y)
 282 {
 283         top_y_ = y;
 284 }
 285
 286
 287 int BufferView::Pimpl::top_y() const
 288 {
 289         return top_y_;
 290 }
 291
 292
 293 void BufferView::Pimpl::buffer(Buffer * b)
 294 {
 295         lyxerr[Debug::INFO] << "Setting buffer in BufferView ("
 296                             << b << ')' << endl;
 297         if (buffer_) {
 298                 disconnectBuffer();
 299                 //delete bv_->text();
 300                 //bv_->setText(0);
 301         }
 302
 303         // reset old cursor
 304         cursor_.reset();
 305
 306         // set current buffer
 307         buffer_ = b;
 308
 309         top_y_ = 0;
 310
 311         // if we're quitting lyx, don't bother updating stuff
 312         if (quitting)
 313                 return;
 314
 315         // if we are closing the buffer, use the first buffer as current
 316         if (!buffer_)
 317                 buffer_ = bufferlist.first();
 318
 319         if (buffer_) {
 320                 lyxerr[Debug::INFO] << "Buffer addr: " << buffer_ << endl;
 321                 connectBuffer(*buffer_);
 322
 323                 buffer_->text().init(bv_);
 324                 buffer_->text().textwidth_ = workarea().workWidth();
 325                 buffer_->text().fullRebreak();
 326
 327                 // If we don't have a text object for this, we make one
 328                 if (bv_->text() == 0)
 329                         resizeCurrentBuffer();
 330
 331                 // Buffer-dependent dialogs should be updated or
 332                 // hidden. This should go here because some dialogs (eg ToC)
 333                 // require bv_->text.
 334                 owner_->getDialogs().updateBufferDependent(true);
 335         } else {
 336                 lyxerr[Debug::INFO] << "  No Buffer!" << endl;
 337                 owner_->getDialogs().hideBufferDependent();
 338         }
 339
 340         update();
 341         updateScrollbar();
 342         owner_->updateMenubar();
 343         owner_->updateToolbar();
 344         owner_->updateLayoutChoice();
 345         owner_->updateWindowTitle();
 346
 347         // Don't forget to update the Layout
 348         if (buffer_)
 349                 owner_->setLayout(bv_->text()->cursorPar()->layout()->name());
 350
 351         if (lyx::graphics::Previews::activated() && buffer_)
 352                 lyx::graphics::Previews::get().generateBufferPreviews(*buffer_);
 353 }
 354
 355
 356 bool BufferView::Pimpl::fitCursor()
 357 {
 358         lyxerr << "BufferView::Pimpl::fitCursor." << endl;
 359         if (screen().fitCursor(bv_)) {
 360                 updateScrollbar();
 361                 return true;
 362         }
 363         return false;
 364 }
 365
 366
 367 void BufferView::Pimpl::redoCurrentBuffer()
 368 {
 369         lyxerr[Debug::INFO] << "BufferView::redoCurrentBuffer" << endl;
 370         if (buffer_ && bv_->text()) {
 371                 resizeCurrentBuffer();
 372                 updateScrollbar();
 373                 owner_->updateLayoutChoice();
 374         }
 375 }
 376
 377
 378 void BufferView::Pimpl::resizeCurrentBuffer()
 379 {
 380         lyxerr[Debug::INFO] << "resizeCurrentBuffer" << endl;
 381
 382         int par = -1;
 383         int selstartpar = -1;
 384         int selendpar = -1;
 385
 386         pos_type pos = 0;
 387         pos_type selstartpos = 0;
 388         pos_type selendpos = 0;
 389         bool sel = false;
 390         bool mark_set  = false;
 391
 392         owner_->busy(true);
 393
 394         owner_->message(_("Formatting document..."));
 395
 396         LyXText * text = bv_->text();
 397         lyxerr << "### resizeCurrentBuffer: text " << text << endl;
 398         if (!text)
 399                 return;
 400
 401         LCursor & cur = bv_->cursor();
 402         par = cur.par();
 403         pos = cur.pos();
 404         selstartpar = cur.selBegin().par();
 405         selstartpos = cur.selBegin().pos();
 406         selendpar = cur.selEnd().par();
 407         selendpos = cur.selEnd().pos();
 408         sel = cur.selection();
 409         mark_set = cur.mark();
 410         text->textwidth_ = bv_->workWidth();
 411         text->fullRebreak();
 412         update();
 413
 414         if (par != -1) {
 415                 cur.selection() = true;
 416                 // At this point just to avoid the Delete-Empty-Paragraph-
 417                 // Mechanism when setting the cursor.
 418                 cur.mark() = mark_set;
 419                 if (sel) {
 420                         text->setCursor(selstartpar, selstartpos);
 421                         cur.resetAnchor();
 422                         text->setCursor(selendpar, selendpos);
 423                         cur.setSelection();
 424                         text->setCursor(par, pos);
 425                 } else {
 426                         text->setCursor(par, pos);
 427                         cur.resetAnchor();
 428                         cur.selection() = false;
 429                 }
 430         }
 431
 432         fitCursor();
 433
 434         switchKeyMap();
 435         owner_->busy(false);
 436
 437         // reset the "Formatting..." message
 438         owner_->clearMessage();
 439
 440         updateScrollbar();
 441 }
 442
 443
 444 void BufferView::Pimpl::updateScrollbar()
 445 {
 446         if (!bv_->text()) {
 447                 lyxerr[Debug::GUI] << "no text in updateScrollbar" << endl;
 448                 workarea().setScrollbarParams(0, 0, 0);
 449                 return;
 450         }
 451
 452         LyXText const & t = *bv_->text();
 453
 454         lyxerr[Debug::GUI] << "Updating scrollbar: h " << t.height << ", top_y() "
 455                 << top_y() << ", default height " << defaultRowHeight() << endl;
 456
 457         workarea().setScrollbarParams(t.height, top_y(), defaultRowHeight());
 458 }
 459
 460
 461 void BufferView::Pimpl::scrollDocView(int value)
 462 {
 463         lyxerr[Debug::GUI] << "scrollDocView of " << value << endl;
 464
 465         if (!buffer_)
 466                 return;
 467
 468         screen().hideCursor();
 469
 470         top_y(value);
 471         screen().redraw(*bv_);
 472
 473         if (!lyxrc.cursor_follows_scrollbar)
 474                 return;
 475
 476         int const height = defaultRowHeight();
 477         int const first = top_y() + height;
 478         int const last = top_y() + workarea().workHeight() - height;
 479
 480         LyXText * text = bv_->text();
 481         int y = text->cursorY(bv_->cursor().cursor_.front());
 482         if (y < first)
 483                 text->setCursorFromCoordinates(0, first);
 484         else if (y > 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         LCursor & cur = bv_->cursor();
 540
 541         if (!cur.selection()) {
 542                 xsel_cache_.set = false;
 543                 return;
 544         }
 545
 546         if (!xsel_cache_.set ||
 547             cur.cursor_.back() != xsel_cache_.cursor ||
 548             cur.anchor_.back() != xsel_cache_.anchor)
 549         {
 550                 xsel_cache_.cursor = cur.cursor_.back();
 551                 xsel_cache_.anchor = cur.anchor_.back();
 552                 xsel_cache_.set = cur.selection();
 553                 sel = bv_->getLyXText()->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_->cursor().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         LCursor & cur = bv_->cursor();
 644
 645         if (!cur.selection())
 646                 return Change(Change::UNCHANGED);
 647
 648         return text->getPar(cur.selBegin())
 649                 ->lookupChangeFull(cur.selBegin().pos());
 650 }
 651
 652
 653 void BufferView::Pimpl::savePosition(unsigned int i)
 654 {
 655         if (i >= saved_positions_num)
 656                 return;
 657         saved_positions[i] = Position(buffer_->fileName(),
 658                                       bv_->text()->cursorPar()->id(),
 659                                       bv_->text()->cursor().pos());
 660         if (i > 0)
 661                 owner_->message(bformat(_("Saved bookmark %1$s"), tostr(i)));
 662 }
 663
 664
 665 void BufferView::Pimpl::restorePosition(unsigned int i)
 666 {
 667         if (i >= saved_positions_num)
 668                 return;
 669
 670         string const fname = saved_positions[i].filename;
 671
 672         bv_->cursor().clearSelection();
 673
 674         if (fname != buffer_->fileName()) {
 675                 Buffer * b = 0;
 676                 if (bufferlist.exists(fname))
 677                         b = bufferlist.getBuffer(fname);
 678                 else {
 679                         b = bufferlist.newBuffer(fname);
 680                         ::loadLyXFile(b, fname); // don't ask, just load it
 681                 }
 682                 if (b)
 683                         buffer(b);
 684         }
 685
 686         ParIterator par = buffer_->getParFromID(saved_positions[i].par_id);
 687         if (par == buffer_->par_iterator_end())
 688                 return;
 689
 690         bv_->text()->setCursor(par.pit(),
 691                              min(par->size(), saved_positions[i].par_pos));
 692
 693         if (i > 0)
 694                 owner_->message(bformat(_("Moved to bookmark %1$s"), tostr(i)));
 695 }
 696
 697
 698 bool BufferView::Pimpl::isSavedPosition(unsigned int i)
 699 {
 700         return i < saved_positions_num && !saved_positions[i].filename.empty();
 701 }
 702
 703
 704 void BufferView::Pimpl::switchKeyMap()
 705 {
 706         if (!lyxrc.rtl_support)
 707                 return;
 708
 709         Intl & intl = owner_->getIntl();
 710         if (bv_->getLyXText()->real_current_font.isRightToLeft()) {
 711                 if (intl.keymap == Intl::PRIMARY)
 712                         intl.KeyMapSec();
 713         } else {
 714                 if (intl.keymap == Intl::SECONDARY)
 715                         intl.KeyMapPrim();
 716         }
 717 }
 718
 719
 720 void BufferView::Pimpl::center()
 721 {
 722         LyXText * text = bv_->text();
 723
 724         bv_->cursor().clearSelection();
 725         int const half_height = workarea().workHeight() / 2;
 726         int new_y = text->cursorY(bv_->cursor().cursor_.front()) - half_height;
 727         if (new_y < 0)
 728                 new_y = 0;
 729
 730         // FIXME: look at this comment again ...
 731         // This updates top_y() but means the fitCursor() call
 732         // from the update(FITCUR) doesn't realise that we might
 733         // have moved (e.g. from GOTOPARAGRAPH), so doesn't cause
 734         // the scrollbar to be updated as it should, so we have
 735         // to do it manually. Any operation that does a center()
 736         // and also might have moved top_y() must make sure to call
 737         // updateScrollbar() currently. Never mind that this is a
 738         // pretty obfuscated way of updating text->top_y()
 739         top_y(new_y);
 740 }
 741
 742
 743 void BufferView::Pimpl::stuffClipboard(string const & stuff) const
 744 {
 745         workarea().putClipboard(stuff);
 746 }
 747
 748
 749 InsetBase * BufferView::Pimpl::getInsetByCode(InsetBase::Code code)
 750 {
 751 #if 0
 752         CursorSlice cursor = bv_->getLyXText()->cursor;
 753         Buffer::inset_iterator it =
 754                 find_if(Buffer::inset_iterator(
 755                         cursorPar(), cursor().pos()),
 756                         buffer_->inset_iterator_end(),
 757                         lyx::compare_memfun(&Inset::lyxCode, code));
 758         return it != buffer_->inset_iterator_end() ? (*it) : 0;
 759 #else
 760         // Ok, this is a little bit too brute force but it
 761         // should work for now. Better infrastructure is coming. (Lgb)
 762
 763         Buffer * b = bv_->buffer();
 764         LyXText * text = bv_->getLyXText();
 765
 766         Buffer::inset_iterator beg = b->inset_iterator_begin();
 767         Buffer::inset_iterator end = b->inset_iterator_end();
 768
 769         bool cursor_par_seen = false;
 770
 771         for (; beg != end; ++beg) {
 772                 if (beg.getPar() == text->cursorPar()) {
 773                         cursor_par_seen = true;
 774                 }
 775                 if (cursor_par_seen) {
 776                         if (beg.getPar() == text->cursorPar()
 777                             && beg.getPos() >= text->cursor().pos()) {
 778                                 break;
 779                         }
 780                         if (beg.getPar() != text->cursorPar()) {
 781                                 break;
 782                         }
 783                 }
 784
 785         }
 786         if (beg != end) {
 787                 // Now find the first inset that matches code.
 788                 for (; beg != end; ++beg) {
 789                         if (beg->lyxCode() == code)
 790                                 return &(*beg);
 791                 }
 792         }
 793         return 0;
 794 #endif
 795 }
 796
 797
 798 void BufferView::Pimpl::MenuInsertLyXFile(string const & filenm)
 799 {
 800         string filename = filenm;
 801
 802         if (filename.empty()) {
 803                 // Launch a file browser
 804                 string initpath = lyxrc.document_path;
 805
 806                 if (available()) {
 807                         string const trypath = owner_->buffer()->filePath();
 808                         // If directory is writeable, use this as default.
 809                         if (IsDirWriteable(trypath))
 810                                 initpath = trypath;
 811                 }
 812
 813                 FileDialog fileDlg(_("Select LyX document to insert"),
 814                         LFUN_FILE_INSERT,
 815                         make_pair(string(_("Documents|#o#O")),
 816                                   string(lyxrc.document_path)),
 817                         make_pair(string(_("Examples|#E#e")),
 818                                   string(AddPath(system_lyxdir(), "examples"))));
 819
 820                 FileDialog::Result result =
 821                         fileDlg.open(initpath,
 822                                      FileFilterList(_("LyX Documents (*.lyx)")),
 823                                      string());
 824
 825                 if (result.first == FileDialog::Later)
 826                         return;
 827
 828                 filename = result.second;
 829
 830                 // check selected filename
 831                 if (filename.empty()) {
 832                         owner_->message(_("Canceled."));
 833                         return;
 834                 }
 835         }
 836
 837         // get absolute path of file and add ".lyx" to the filename if
 838         // necessary
 839         filename = FileSearch(string(), filename, "lyx");
 840
 841         string const disp_fn = MakeDisplayPath(filename);
 842         owner_->message(bformat(_("Inserting document %1$s..."), disp_fn));
 843         if (bv_->insertLyXFile(filename))
 844                 owner_->message(bformat(_("Document %1$s inserted."),
 845                                         disp_fn));
 846         else
 847                 owner_->message(bformat(_("Could not insert document %1$s"),
 848                                         disp_fn));
 849 }
 850
 851
 852 void BufferView::Pimpl::trackChanges()
 853 {
 854         Buffer * buf = bv_->buffer();
 855         bool const tracking(buf->params().tracking_changes);
 856
 857         if (!tracking) {
 858                 ParIterator const end = buf->par_iterator_end();
 859                 for (ParIterator it = buf->par_iterator_begin(); it != end; ++it)
 860                         it->trackChanges();
 861                 buf->params().tracking_changes = true;
 862
 863                 // we cannot allow undos beyond the freeze point
 864                 buf->undostack().clear();
 865         } else {
 866                 update();
 867                 bv_->text()->setCursor(0, 0);
 868 #warning changes FIXME
 869                 bool found = lyx::find::findNextChange(bv_);
 870                 if (found) {
 871                         owner_->getDialogs().show("changes");
 872                         return;
 873                 }
 874
 875                 ParIterator const end = buf->par_iterator_end();
 876                 for (ParIterator it = buf->par_iterator_begin(); it != end; ++it)
 877                         it->untrackChanges();
 878                 buf->params().tracking_changes = false;
 879         }
 880
 881         buf->redostack().clear();
 882 }
 883
 884
 885 bool BufferView::Pimpl::workAreaDispatch(FuncRequest const & cmd0)
 886 {
 887         //
 888         // this is only called for mouse related events.
 889         //
 890         FuncRequest cmd = cmd0;
 891         cmd.y += bv_->top_y();
 892         lyxerr << "*** workAreaDispatch: request: " << cmd << std::endl;
 893         LCursor cur(*bv_);
 894         switch (cmd.action) {
 895 #if 0
 896         case LFUN_MOUSE_MOTION: {
 897                 if (!available())
 898                         return false;
 899                 FuncRequest cmd1 = cmd;
 900                 InsetBase * inset = cur.inset();
 901                 DispatchResult res;
 902                 if (inset) {
 903                         res = inset->dispatch(cur, cmd);
 904                 } else {
 905                         res = bv_->text()->dispatch(cur, cmd);
 906                 }
 907
 908                 if (fitCursor() || res.update()) {
 909                         bv_->update();
 910                         cur.updatePos();
 911                 }
 912                 return true;
 913         }
 914 #endif
 915
 916         case LFUN_MOUSE_MOTION:
 917         case LFUN_MOUSE_PRESS:
 918         case LFUN_MOUSE_RELEASE:
 919         case LFUN_MOUSE_DOUBLE:
 920         case LFUN_MOUSE_TRIPLE: {
 921                 // We pass those directly to the Bufferview, since
 922                 // otherwise selection handling breaks down
 923
 924                 // Doesn't go through lyxfunc, so we need to update
 925                 // the layout choice etc. ourselves
 926
 927                 // e.g. Qt mouse press when no buffer
 928                 if (!available())
 929                         return false;
 930
 931                 screen().hideCursor();
 932
 933                 // either the inset under the cursor or the
 934                 // surrounding LyXText will handle this event.
 935
 936                 // built temporary path to inset
 937                 LyXText * text = bv_->text();
 938                 InsetBase * const inset_hit = text->checkInsetHit(cmd.x, cmd.y);
 939                 if (inset_hit)
 940                         inset_hit->edit(cur, cmd.x, cmd.y);
 941                 else
 942                         text->setCursorFromCoordinates(cur.current(), cmd.x, cmd.y);
 943                 lyxerr << "created temp cursor: " << cur << endl;
 944
 945                 // Dispatch to the temp cursor.
 946                 // An inset (or LyXText) can assign this to bv->cursor()
 947                 // if it wishes to do so.
 948                 DispatchResult res = cur.dispatch(cmd);
 949
 950                 if (fitCursor() || res.update())
 951                         bv_->update();
 952
 953                 // see workAreaKeyPress
 954                 cursor_timeout.restart();
 955                 screen().showCursor(*bv_);
 956
 957                 // skip these when selecting
 958                 if (cmd.action != LFUN_MOUSE_MOTION) {
 959                         owner_->updateLayoutChoice();
 960                         owner_->updateToolbar();
 961                 }
 962
 963                 // slight hack: this is only called currently when we
 964                 // clicked somewhere, so we force through the display
 965                 // of the new status here.
 966                 owner_->clearMessage();
 967                 return true;
 968         }
 969
 970         default:
 971                 lyxerr << "*** UNDISPATCHED: " << cmd;
 972                 //owner_->dispatch(cmd);
 973         }
 974         return true;
 975 }
 976
 977
 978 bool BufferView::Pimpl::dispatch(FuncRequest const & cmd)
 979 {
 980         lyxerr << "*** BufferView::Pimpl: request: " << cmd << std::endl;
 981         // Make sure that the cached BufferView is correct.
 982         lyxerr[Debug::ACTION] << "BufferView::Pimpl::Dispatch:"
 983                 << " action[" << cmd.action << ']'
 984                 << " arg[" << cmd.argument << ']'
 985                 << " x[" << cmd.x << ']'
 986                 << " y[" << cmd.y << ']'
 987                 << " button[" << cmd.button() << ']'
 988                 << endl;
 989
 990         LyXTextClass const & tclass = buffer_->params().getLyXTextClass();
 991         LCursor & cur = bv_->cursor();
 992
 993         switch (cmd.action) {
 994
 995         case LFUN_SCROLL_INSET:
 996                 // this is not handled here as this function is only active
 997                 // if we have a locking_inset and that one is (or contains)
 998                 // a tabular-inset
 999                 break;
1000
1001         case LFUN_FILE_INSERT:
1002                 MenuInsertLyXFile(cmd.argument);
1003                 break;
1004
1005         case LFUN_FILE_INSERT_ASCII_PARA:
1006                 InsertAsciiFile(bv_, cmd.argument, true);
1007                 break;
1008
1009         case LFUN_FILE_INSERT_ASCII:
1010                 InsertAsciiFile(bv_, cmd.argument, false);
1011                 break;
1012
1013         case LFUN_FONT_STATE:
1014                 owner_->getLyXFunc().setMessage(currentState(bv_));
1015                 break;
1016
1017         case LFUN_INSERT_LABEL: {
1018                 // Try and generate a valid label
1019                 string const contents = cmd.argument.empty() ?
1020                         getPossibleLabel(*bv_) : cmd.argument;
1021                 InsetCommandParams icp("label", contents);
1022                 string data = InsetCommandMailer::params2string("label", icp);
1023                 owner_->getDialogs().show("label", data, 0);
1024                 break;
1025         }
1026
1027         case LFUN_BOOKMARK_SAVE:
1028                 savePosition(strToUnsignedInt(cmd.argument));
1029                 break;
1030
1031         case LFUN_BOOKMARK_GOTO:
1032                 restorePosition(strToUnsignedInt(cmd.argument));
1033                 break;
1034
1035         case LFUN_REF_GOTO: {
1036                 string label = cmd.argument;
1037                 if (label.empty()) {
1038                         InsetRef * inset =
1039                                 static_cast<InsetRef*>(getInsetByCode(InsetBase::REF_CODE));
1040                         if (inset) {
1041                                 label = inset->getContents();
1042                                 savePosition(0);
1043                         }
1044                 }
1045
1046                 if (!label.empty())
1047                         bv_->gotoLabel(label);
1048         }
1049         break;
1050
1051         // --- accented characters ---------------------------
1052
1053         case LFUN_UMLAUT:
1054         case LFUN_CIRCUMFLEX:
1055         case LFUN_GRAVE:
1056         case LFUN_ACUTE:
1057         case LFUN_TILDE:
1058         case LFUN_CEDILLA:
1059         case LFUN_MACRON:
1060         case LFUN_DOT:
1061         case LFUN_UNDERDOT:
1062         case LFUN_UNDERBAR:
1063         case LFUN_CARON:
1064         case LFUN_SPECIAL_CARON:
1065         case LFUN_BREVE:
1066         case LFUN_TIE:
1067         case LFUN_HUNG_UMLAUT:
1068         case LFUN_CIRCLE:
1069         case LFUN_OGONEK:
1070                 if (cmd.argument.empty()) {
1071                         // As always...
1072                         owner_->getLyXFunc().handleKeyFunc(cmd.action);
1073                 } else {
1074                         owner_->getLyXFunc().handleKeyFunc(cmd.action);
1075                         owner_->getIntl().getTransManager()
1076                                 .TranslateAndInsert(cmd.argument[0], bv_->getLyXText());
1077                         update();
1078                 }
1079                 break;
1080
1081         case LFUN_INSET_INSERT: {
1082                 // Same as above.
1083                 BOOST_ASSERT(false);
1084                 InsetBase * inset = createInset(bv_, cmd);
1085                 if (!inset || !insertInset(inset))
1086                         delete inset;
1087                 break;
1088         }
1089
1090         case LFUN_FLOAT_LIST:
1091                 if (tclass.floats().typeExist(cmd.argument)) {
1092                         InsetBase * inset = new InsetFloatList(cmd.argument);
1093                         if (!insertInset(inset, tclass.defaultLayoutName()))
1094                                 delete inset;
1095                 } else {
1096                         lyxerr << "Non-existent float type: "
1097                                << cmd.argument << endl;
1098                 }
1099                 break;
1100
1101         case LFUN_LAYOUT_PARAGRAPH: {
1102                 string data;
1103                 params2string(*bv_->getLyXText()->cursorPar(), data);
1104                 data = "show\n" + data;
1105                 bv_->owner()->getDialogs().show("paragraph", data);
1106                 break;
1107         }
1108
1109         case LFUN_PARAGRAPH_UPDATE:
1110                 updateParagraphDialog();
1111                 break;
1112
1113         case LFUN_PARAGRAPH_APPLY:
1114                 setParagraphParams(*bv_, cmd.argument);
1115                 break;
1116
1117         case LFUN_THESAURUS_ENTRY: {
1118                 string arg = cmd.argument;
1119
1120                 if (arg.empty()) {
1121                         arg = bv_->getLyXText()->selectionAsString(*buffer_,
1122                                                                    false);
1123
1124                         // FIXME
1125                         if (arg.size() > 100 || arg.empty()) {
1126                                 // Get word or selection
1127                                 bv_->getLyXText()->selectWordWhenUnderCursor(lyx::WHOLE_WORD);
1128                                 arg = bv_->getLyXText()->selectionAsString(*buffer_, false);
1129                                 // FIXME: where is getLyXText()->unselect(bv_) ?
1130                         }
1131                 }
1132
1133                 bv_->owner()->getDialogs().show("thesaurus", arg);
1134                 break;
1135         }
1136
1137         case LFUN_TRACK_CHANGES:
1138                 trackChanges();
1139                 break;
1140
1141         case LFUN_MERGE_CHANGES:
1142                 owner_->getDialogs().show("changes");
1143                 break;
1144
1145         case LFUN_ACCEPT_ALL_CHANGES: {
1146                 bv_->text()->setCursor(0, 0);
1147 #warning FIXME changes
1148                 while (lyx::find::findNextChange(bv_))
1149                         bv_->getLyXText()->acceptChange();
1150                 update();
1151                 break;
1152         }
1153
1154         case LFUN_REJECT_ALL_CHANGES: {
1155                 bv_->text()->setCursor(0, 0);
1156 #warning FIXME changes
1157                 while (lyx::find::findNextChange(bv_))
1158                         bv_->getLyXText()->rejectChange();
1159                 update();
1160                 break;
1161         }
1162
1163         case LFUN_ACCEPT_CHANGE: {
1164                 bv_->getLyXText()->acceptChange();
1165                 update();
1166                 break;
1167         }
1168
1169         case LFUN_REJECT_CHANGE: {
1170                 bv_->getLyXText()->rejectChange();
1171                 update();
1172                 break;
1173         }
1174
1175         case LFUN_WORD_FIND:
1176                 lyx::find::find(bv_, cmd);
1177                 break;
1178
1179         case LFUN_WORD_REPLACE:
1180                 lyx::find::replace(bv_, cmd);
1181                 break;
1182
1183         case LFUN_MARK_OFF:
1184                 cur.clearSelection();
1185                 bv_->update();
1186                 cur.resetAnchor();
1187                 cmd.message(N_("Mark off"));
1188                 break;
1189
1190         case LFUN_MARK_ON:
1191                 cur.clearSelection();
1192                 cur.mark() = true;
1193                 bv_->update();
1194                 cur.resetAnchor();
1195                 cmd.message(N_("Mark on"));
1196                 break;
1197
1198         case LFUN_SETMARK:
1199                 cur.clearSelection();
1200                 if (cur.mark()) {
1201                         cmd.message(N_("Mark removed"));
1202                 } else {
1203                         cur.mark() = true;
1204                         cmd.message(N_("Mark set"));
1205                 }
1206                 cur.resetAnchor();
1207                 bv_->update();
1208                 break;
1209
1210         case LFUN_UNKNOWN_ACTION:
1211                 cmd.errorMessage(N_("Unknown function!"));
1212                 break;
1213
1214         default:
1215                 return false;
1216         }
1217
1218         return true;
1219 }
1220
1221
1222 bool BufferView::Pimpl::insertInset(InsetBase * inset, string const & lout)
1223 {
1224         // not quite sure if we want this...
1225         bv_->text()->recUndo(bv_->text()->cursor().par());
1226         freezeUndo();
1227
1228         bv_->cursor().clearSelection();
1229         if (!lout.empty()) {
1230                 bv_->text()->breakParagraph(bv_->buffer()->paragraphs());
1231
1232                 if (!bv_->text()->cursorPar()->empty()) {
1233                         bv_->text()->cursorLeft(bv_);
1234                         bv_->text()->breakParagraph(bv_->buffer()->paragraphs());
1235                 }
1236
1237                 string lres = lout;
1238                 LyXTextClass const & tclass = buffer_->params().getLyXTextClass();
1239                 bool hasLayout = tclass.hasLayout(lres);
1240
1241                 bv_->text()->setLayout(hasLayout ? lres : tclass.defaultLayoutName());
1242                 bv_->text()->setParagraph(Spacing(), LYX_ALIGN_LAYOUT, string(), 0);
1243         }
1244         bv_->cursor().innerText()->insertInset(inset);
1245         unFreezeUndo();
1246         return true;
1247 }
1248
1249
1250 bool BufferView::Pimpl::ChangeInsets(InsetBase::Code code,
1251                                      string const & from, string const & to)
1252 {
1253         bool need_update = false;
1254         CursorSlice cur = bv_->text()->cursor();
1255
1256         ParIterator end = bv_->buffer()->par_iterator_end();
1257         for (ParIterator it = bv_->buffer()->par_iterator_begin();
1258              it != end; ++it) {
1259                 bool changed_inset = false;
1260                 for (InsetList::iterator it2 = it->insetlist.begin();
1261                      it2 != it->insetlist.end(); ++it2) {
1262                         if (it2->inset->lyxCode() == code) {
1263                                 InsetCommand * inset = static_cast<InsetCommand *>(it2->inset);
1264                                 if (inset->getContents() == from) {
1265                                         inset->setContents(to);
1266                                         changed_inset = true;
1267                                 }
1268                         }
1269                 }
1270                 if (changed_inset) {
1271                         need_update = true;
1272
1273                         // FIXME
1274
1275                         // The test it.size() == 1 was needed to prevent crashes.
1276                         // How to set the cursor correctly when it.size() > 1 ??
1277                         if (it.size() == 1) {
1278                                 bv_->text()->setCursorIntern(bv_->text()->parOffset(it.pit()), 0);
1279                                 bv_->text()->redoParagraph(bv_->text()->cursorPar());
1280                         }
1281                 }
1282         }
1283         bv_->text()->setCursorIntern(cur.par(), cur.pos());
1284         return need_update;
1285 }
1286
1287
1288 void BufferView::Pimpl::updateParagraphDialog()
1289 {
1290         if (!bv_->owner()->getDialogs().visible("paragraph"))
1291                 return;
1292         CursorSlice const & cur = bv_->cursor().innerTextSlice();
1293         LyXText * text = bv_->cursor().innerText();
1294         Paragraph const & par = *text->getPar(cur.par());
1295         string data;
1296         params2string(par, data);
1297
1298         // Will the paragraph accept changes from the dialog?
1299         InsetBase * const inset = cur.inset();
1300         bool const accept =
1301                 !(inset && inset->forceDefaultParagraphs(inset));
1302
1303         data = "update " + tostr(accept) + '\n' + data;
1304         bv_->owner()->getDialogs().update("paragraph", data);
1305 }