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                 // FIXME: needed when ?
 332                 fitCursor();
 333
 334                 // Buffer-dependent dialogs should be updated or
 335                 // hidden. This should go here because some dialogs (eg ToC)
 336                 // require bv_->text.
 337                 owner_->getDialogs().updateBufferDependent(true);
 338         } else {
 339                 lyxerr[Debug::INFO] << "  No Buffer!" << endl;
 340                 owner_->getDialogs().hideBufferDependent();
 341         }
 342
 343         update();
 344         updateScrollbar();
 345         owner_->updateMenubar();
 346         owner_->updateToolbar();
 347         owner_->updateLayoutChoice();
 348         owner_->updateWindowTitle();
 349
 350         // Don't forget to update the Layout
 351         if (buffer_)
 352                 owner_->setLayout(bv_->text()->cursorPar()->layout()->name());
 353
 354         if (lyx::graphics::Previews::activated() && buffer_)
 355                 lyx::graphics::Previews::get().generateBufferPreviews(*buffer_);
 356 }
 357
 358
 359 bool BufferView::Pimpl::fitCursor()
 360 {
 361         lyxerr << "BufferView::Pimpl::fitCursor." << endl;
 362         if (screen().fitCursor(bv_)) {
 363                 updateScrollbar();
 364                 return true;
 365         }
 366         return false;
 367 }
 368
 369
 370 void BufferView::Pimpl::redoCurrentBuffer()
 371 {
 372         lyxerr[Debug::INFO] << "BufferView::redoCurrentBuffer" << endl;
 373         if (buffer_ && bv_->text()) {
 374                 resizeCurrentBuffer();
 375                 updateScrollbar();
 376                 owner_->updateLayoutChoice();
 377         }
 378 }
 379
 380
 381 void BufferView::Pimpl::resizeCurrentBuffer()
 382 {
 383         lyxerr[Debug::INFO] << "resizeCurrentBuffer" << endl;
 384
 385         int par = -1;
 386         int selstartpar = -1;
 387         int selendpar = -1;
 388
 389         pos_type pos = 0;
 390         pos_type selstartpos = 0;
 391         pos_type selendpos = 0;
 392         bool sel = false;
 393         bool mark_set  = false;
 394
 395         owner_->busy(true);
 396
 397         owner_->message(_("Formatting document..."));
 398
 399         LyXText * text = bv_->text();
 400         lyxerr << "### resizeCurrentBuffer: text " << text << endl;
 401         if (!text)
 402                 return;
 403
 404         LCursor & cur = bv_->cursor();
 405         par = cur.par();
 406         pos = cur.pos();
 407         selstartpar = cur.selBegin().par();
 408         selstartpos = cur.selBegin().pos();
 409         selendpar = cur.selEnd().par();
 410         selendpos = cur.selEnd().pos();
 411         sel = cur.selection();
 412         mark_set = cur.mark();
 413         text->textwidth_ = bv_->workWidth();
 414         text->fullRebreak();
 415         update();
 416
 417         if (par != -1) {
 418                 cur.selection() = true;
 419                 // At this point just to avoid the Delete-Empty-Paragraph-
 420                 // Mechanism when setting the cursor.
 421                 cur.mark() = mark_set;
 422                 if (sel) {
 423                         text->setCursor(selstartpar, selstartpos);
 424                         cur.resetAnchor();
 425                         text->setCursor(selendpar, selendpos);
 426                         cur.setSelection();
 427                         text->setCursor(par, pos);
 428                 } else {
 429                         text->setCursor(par, pos);
 430                         cur.resetAnchor();
 431                         cur.selection() = false;
 432                 }
 433         }
 434
 435         fitCursor();
 436
 437         switchKeyMap();
 438         owner_->busy(false);
 439
 440         // reset the "Formatting..." message
 441         owner_->clearMessage();
 442
 443         updateScrollbar();
 444 }
 445
 446
 447 void BufferView::Pimpl::updateScrollbar()
 448 {
 449         if (!bv_->text()) {
 450                 lyxerr[Debug::GUI] << "no text in updateScrollbar" << endl;
 451                 workarea().setScrollbarParams(0, 0, 0);
 452                 return;
 453         }
 454
 455         LyXText const & t = *bv_->text();
 456
 457         lyxerr[Debug::GUI] << "Updating scrollbar: h " << t.height << ", top_y() "
 458                 << top_y() << ", default height " << defaultRowHeight() << endl;
 459
 460         workarea().setScrollbarParams(t.height, top_y(), defaultRowHeight());
 461 }
 462
 463
 464 void BufferView::Pimpl::scrollDocView(int value)
 465 {
 466         lyxerr[Debug::GUI] << "scrollDocView of " << value << endl;
 467
 468         if (!buffer_)
 469                 return;
 470
 471         screen().hideCursor();
 472
 473         top_y(value);
 474         screen().redraw(*bv_);
 475
 476         if (!lyxrc.cursor_follows_scrollbar)
 477                 return;
 478
 479         int const height = defaultRowHeight();
 480         int const first = top_y() + height;
 481         int const last = top_y() + workarea().workHeight() - height;
 482
 483         LyXText * text = bv_->text();
 484         int y = text->cursorY(bv_->cursor().cursor_.front());
 485         if (y < first)
 486                 text->setCursorFromCoordinates(0, first);
 487         else if (y > last)
 488                 text->setCursorFromCoordinates(0, last);
 489
 490         owner_->updateLayoutChoice();
 491 }
 492
 493
 494 void BufferView::Pimpl::scroll(int lines)
 495 {
 496         if (!buffer_)
 497                 return;
 498
 499         LyXText const * t = bv_->text();
 500         int const line_height = defaultRowHeight();
 501
 502         // The new absolute coordinate
 503         int new_top_y = top_y() + lines * line_height;
 504
 505         // Restrict to a valid value
 506         new_top_y = std::min(t->height - 4 * line_height, new_top_y);
 507         new_top_y = std::max(0, new_top_y);
 508
 509         scrollDocView(new_top_y);
 510
 511         // Update the scrollbar.
 512         workarea().setScrollbarParams(t->height, top_y(), defaultRowHeight());
 513 }
 514
 515
 516 void BufferView::Pimpl::workAreaKeyPress(LyXKeySymPtr key,
 517                                          key_modifier::state state)
 518 {
 519         bv_->owner()->getLyXFunc().processKeySym(key, state);
 520
 521         /* This is perhaps a bit of a hack. When we move
 522          * around, or type, it's nice to be able to see
 523          * the cursor immediately after the keypress. So
 524          * we reset the toggle timeout and force the visibility
 525          * of the cursor. Note we cannot do this inside
 526          * dispatch() itself, because that's called recursively.
 527          */
 528         if (available()) {
 529                 cursor_timeout.restart();
 530                 screen().showCursor(*bv_);
 531         }
 532 }
 533
 534
 535 void BufferView::Pimpl::selectionRequested()
 536 {
 537         static string sel;
 538
 539         if (!available())
 540                 return;
 541
 542         LCursor & cur = bv_->cursor();
 543
 544         if (!cur.selection()) {
 545                 xsel_cache_.set = false;
 546                 return;
 547         }
 548
 549         if (!xsel_cache_.set ||
 550             cur.cursor_.back() != xsel_cache_.cursor ||
 551             cur.anchor_.back() != xsel_cache_.anchor)
 552         {
 553                 xsel_cache_.cursor = cur.cursor_.back();
 554                 xsel_cache_.anchor = cur.anchor_.back();
 555                 xsel_cache_.set = cur.selection();
 556                 sel = bv_->getLyXText()->selectionAsString(*bv_->buffer(), false);
 557                 if (!sel.empty())
 558                         workarea().putClipboard(sel);
 559         }
 560 }
 561
 562
 563 void BufferView::Pimpl::selectionLost()
 564 {
 565         if (available()) {
 566                 screen().hideCursor();
 567                 bv_->cursor().clearSelection();
 568                 xsel_cache_.set = false;
 569         }
 570 }
 571
 572
 573 void BufferView::Pimpl::workAreaResize()
 574 {
 575         static int work_area_width;
 576         static int work_area_height;
 577
 578         bool const widthChange = workarea().workWidth() != work_area_width;
 579         bool const heightChange = workarea().workHeight() != work_area_height;
 580
 581         // update from work area
 582         work_area_width = workarea().workWidth();
 583         work_area_height = workarea().workHeight();
 584
 585         if (buffer_ != 0) {
 586                 if (widthChange) {
 587                         // The visible LyXView need a resize
 588                         resizeCurrentBuffer();
 589                 }
 590         }
 591
 592         if (widthChange || heightChange)
 593                 update();
 594
 595         // always make sure that the scrollbar is sane.
 596         updateScrollbar();
 597         owner_->updateLayoutChoice();
 598 }
 599
 600
 601 void BufferView::Pimpl::update()
 602 {
 603         //lyxerr << "BufferView::update()" << endl;
 604         // fix cursor coordinate cache in case something went wrong
 605
 606         // check needed to survive LyX startup
 607         if (bv_->getLyXText()) {
 608                 // update all 'visible' paragraphs
 609                 ParagraphList::iterator beg;
 610                 ParagraphList::iterator end;
 611                 getParsInRange(buffer_->paragraphs(),
 612                                top_y(), top_y() + workarea().workHeight(),
 613                                beg, end);
 614                 bv_->text()->redoParagraphs(beg, end);
 615                 updateScrollbar();
 616         }
 617         screen().redraw(*bv_);
 618 }
 619
 620
 621 // Callback for cursor timer
 622 void BufferView::Pimpl::cursorToggle()
 623 {
 624         if (!buffer_) {
 625                 cursor_timeout.restart();
 626                 return;
 627         }
 628
 629         screen().toggleCursor(*bv_);
 630         cursor_timeout.restart();
 631 }
 632
 633
 634 bool BufferView::Pimpl::available() const
 635 {
 636         return buffer_ && bv_->text();
 637 }
 638
 639
 640 Change const BufferView::Pimpl::getCurrentChange()
 641 {
 642         if (!bv_->buffer()->params().tracking_changes)
 643                 return Change(Change::UNCHANGED);
 644
 645         LyXText * text = bv_->getLyXText();
 646         LCursor & cur = bv_->cursor();
 647
 648         if (!cur.selection())
 649                 return Change(Change::UNCHANGED);
 650
 651         return text->getPar(cur.selBegin())
 652                 ->lookupChangeFull(cur.selBegin().pos());
 653 }
 654
 655
 656 void BufferView::Pimpl::savePosition(unsigned int i)
 657 {
 658         if (i >= saved_positions_num)
 659                 return;
 660         saved_positions[i] = Position(buffer_->fileName(),
 661                                       bv_->text()->cursorPar()->id(),
 662                                       bv_->text()->cursor().pos());
 663         if (i > 0)
 664                 owner_->message(bformat(_("Saved bookmark %1$s"), tostr(i)));
 665 }
 666
 667
 668 void BufferView::Pimpl::restorePosition(unsigned int i)
 669 {
 670         if (i >= saved_positions_num)
 671                 return;
 672
 673         string const fname = saved_positions[i].filename;
 674
 675         bv_->cursor().clearSelection();
 676
 677         if (fname != buffer_->fileName()) {
 678                 Buffer * b = 0;
 679                 if (bufferlist.exists(fname))
 680                         b = bufferlist.getBuffer(fname);
 681                 else {
 682                         b = bufferlist.newBuffer(fname);
 683                         ::loadLyXFile(b, fname); // don't ask, just load it
 684                 }
 685                 if (b)
 686                         buffer(b);
 687         }
 688
 689         ParIterator par = buffer_->getParFromID(saved_positions[i].par_id);
 690         if (par == buffer_->par_iterator_end())
 691                 return;
 692
 693         bv_->text()->setCursor(par.pit(),
 694                              min(par->size(), saved_positions[i].par_pos));
 695
 696         if (i > 0)
 697                 owner_->message(bformat(_("Moved to bookmark %1$s"), tostr(i)));
 698 }
 699
 700
 701 bool BufferView::Pimpl::isSavedPosition(unsigned int i)
 702 {
 703         return i < saved_positions_num && !saved_positions[i].filename.empty();
 704 }
 705
 706
 707 void BufferView::Pimpl::switchKeyMap()
 708 {
 709         if (!lyxrc.rtl_support)
 710                 return;
 711
 712         Intl & intl = owner_->getIntl();
 713         if (bv_->getLyXText()->real_current_font.isRightToLeft()) {
 714                 if (intl.keymap == Intl::PRIMARY)
 715                         intl.KeyMapSec();
 716         } else {
 717                 if (intl.keymap == Intl::SECONDARY)
 718                         intl.KeyMapPrim();
 719         }
 720 }
 721
 722
 723 void BufferView::Pimpl::center()
 724 {
 725         LyXText * text = bv_->text();
 726
 727         bv_->cursor().clearSelection();
 728         int const half_height = workarea().workHeight() / 2;
 729         int new_y = text->cursorY(bv_->cursor().cursor_.front()) - half_height;
 730         if (new_y < 0)
 731                 new_y = 0;
 732
 733         // FIXME: look at this comment again ...
 734         // This updates top_y() but means the fitCursor() call
 735         // from the update(FITCUR) doesn't realise that we might
 736         // have moved (e.g. from GOTOPARAGRAPH), so doesn't cause
 737         // the scrollbar to be updated as it should, so we have
 738         // to do it manually. Any operation that does a center()
 739         // and also might have moved top_y() must make sure to call
 740         // updateScrollbar() currently. Never mind that this is a
 741         // pretty obfuscated way of updating text->top_y()
 742         top_y(new_y);
 743 }
 744
 745
 746 void BufferView::Pimpl::stuffClipboard(string const & stuff) const
 747 {
 748         workarea().putClipboard(stuff);
 749 }
 750
 751
 752 InsetBase * BufferView::Pimpl::getInsetByCode(InsetBase::Code code)
 753 {
 754 #if 0
 755         CursorSlice cursor = bv_->getLyXText()->cursor;
 756         Buffer::inset_iterator it =
 757                 find_if(Buffer::inset_iterator(
 758                         cursorPar(), cursor().pos()),
 759                         buffer_->inset_iterator_end(),
 760                         lyx::compare_memfun(&Inset::lyxCode, code));
 761         return it != buffer_->inset_iterator_end() ? (*it) : 0;
 762 #else
 763         // Ok, this is a little bit too brute force but it
 764         // should work for now. Better infrastructure is coming. (Lgb)
 765
 766         Buffer * b = bv_->buffer();
 767         LyXText * text = bv_->getLyXText();
 768
 769         Buffer::inset_iterator beg = b->inset_iterator_begin();
 770         Buffer::inset_iterator end = b->inset_iterator_end();
 771
 772         bool cursor_par_seen = false;
 773
 774         for (; beg != end; ++beg) {
 775                 if (beg.getPar() == text->cursorPar()) {
 776                         cursor_par_seen = true;
 777                 }
 778                 if (cursor_par_seen) {
 779                         if (beg.getPar() == text->cursorPar()
 780                             && beg.getPos() >= text->cursor().pos()) {
 781                                 break;
 782                         }
 783                         if (beg.getPar() != text->cursorPar()) {
 784                                 break;
 785                         }
 786                 }
 787
 788         }
 789         if (beg != end) {
 790                 // Now find the first inset that matches code.
 791                 for (; beg != end; ++beg) {
 792                         if (beg->lyxCode() == code)
 793                                 return &(*beg);
 794                 }
 795         }
 796         return 0;
 797 #endif
 798 }
 799
 800
 801 void BufferView::Pimpl::MenuInsertLyXFile(string const & filenm)
 802 {
 803         string filename = filenm;
 804
 805         if (filename.empty()) {
 806                 // Launch a file browser
 807                 string initpath = lyxrc.document_path;
 808
 809                 if (available()) {
 810                         string const trypath = owner_->buffer()->filePath();
 811                         // If directory is writeable, use this as default.
 812                         if (IsDirWriteable(trypath))
 813                                 initpath = trypath;
 814                 }
 815
 816                 FileDialog fileDlg(_("Select LyX document to insert"),
 817                         LFUN_FILE_INSERT,
 818                         make_pair(string(_("Documents|#o#O")),
 819                                   string(lyxrc.document_path)),
 820                         make_pair(string(_("Examples|#E#e")),
 821                                   string(AddPath(system_lyxdir(), "examples"))));
 822
 823                 FileDialog::Result result =
 824                         fileDlg.open(initpath,
 825                                      FileFilterList(_("LyX Documents (*.lyx)")),
 826                                      string());
 827
 828                 if (result.first == FileDialog::Later)
 829                         return;
 830
 831                 filename = result.second;
 832
 833                 // check selected filename
 834                 if (filename.empty()) {
 835                         owner_->message(_("Canceled."));
 836                         return;
 837                 }
 838         }
 839
 840         // get absolute path of file and add ".lyx" to the filename if
 841         // necessary
 842         filename = FileSearch(string(), filename, "lyx");
 843
 844         string const disp_fn = MakeDisplayPath(filename);
 845         owner_->message(bformat(_("Inserting document %1$s..."), disp_fn));
 846         if (bv_->insertLyXFile(filename))
 847                 owner_->message(bformat(_("Document %1$s inserted."),
 848                                         disp_fn));
 849         else
 850                 owner_->message(bformat(_("Could not insert document %1$s"),
 851                                         disp_fn));
 852 }
 853
 854
 855 void BufferView::Pimpl::trackChanges()
 856 {
 857         Buffer * buf = bv_->buffer();
 858         bool const tracking(buf->params().tracking_changes);
 859
 860         if (!tracking) {
 861                 ParIterator const end = buf->par_iterator_end();
 862                 for (ParIterator it = buf->par_iterator_begin(); it != end; ++it)
 863                         it->trackChanges();
 864                 buf->params().tracking_changes = true;
 865
 866                 // we cannot allow undos beyond the freeze point
 867                 buf->undostack().clear();
 868         } else {
 869                 update();
 870                 bv_->text()->setCursor(0, 0);
 871 #warning changes FIXME
 872                 bool found = lyx::find::findNextChange(bv_);
 873                 if (found) {
 874                         owner_->getDialogs().show("changes");
 875                         return;
 876                 }
 877
 878                 ParIterator const end = buf->par_iterator_end();
 879                 for (ParIterator it = buf->par_iterator_begin(); it != end; ++it)
 880                         it->untrackChanges();
 881                 buf->params().tracking_changes = false;
 882         }
 883
 884         buf->redostack().clear();
 885 }
 886
 887
 888 bool BufferView::Pimpl::workAreaDispatch(FuncRequest const & cmd0)
 889 {
 890         //
 891         // this is only called for mouse related events.
 892         //
 893         FuncRequest cmd = cmd0;
 894         cmd.y += bv_->top_y();
 895         lyxerr << "*** workAreaDispatch: request: " << cmd << std::endl;
 896         LCursor cur(*bv_);
 897         switch (cmd.action) {
 898 #if 0
 899         case LFUN_MOUSE_MOTION: {
 900                 if (!available())
 901                         return false;
 902                 FuncRequest cmd1 = cmd;
 903                 InsetBase * inset = cur.inset();
 904                 DispatchResult res;
 905                 if (inset) {
 906                         res = inset->dispatch(cur, cmd);
 907                 } else {
 908                         res = cur.innerText()->dispatch(cur, cmd);
 909                 }
 910
 911                 if (bv_->fitCursor() || res.update()) {
 912                         bv_->update();
 913                         cur.updatePos();
 914                 }
 915                 return true;
 916         }
 917 #endif
 918
 919         case LFUN_MOUSE_MOTION:
 920         case LFUN_MOUSE_PRESS:
 921         case LFUN_MOUSE_RELEASE:
 922         case LFUN_MOUSE_DOUBLE:
 923         case LFUN_MOUSE_TRIPLE: {
 924                 // We pass those directly to the Bufferview, since
 925                 // otherwise selection handling breaks down
 926
 927                 // Doesn't go through lyxfunc, so we need to update
 928                 // the layout choice etc. ourselves
 929
 930                 // e.g. Qt mouse press when no buffer
 931                 if (!available())
 932                         return false;
 933
 934                 screen().hideCursor();
 935
 936                 // either the inset under the cursor or the
 937                 // surrounding LyXText will handle this event.
 938
 939                 // built temporary path to inset
 940                 LyXText * text = bv_->text();
 941                 InsetBase * const inset_hit = text->checkInsetHit(cmd.x, cmd.y);
 942                 if (inset_hit)
 943                         inset_hit->edit(cur, cmd.x, cmd.y);
 944                 else
 945                         text->setCursorFromCoordinates(cur.current(), cmd.x, cmd.y);
 946                 lyxerr << "created temp cursor: " << cur << endl;
 947
 948                 // Dispatch to the temp cursor.
 949                 // An inset (or LyXText) can assign this to bv->cursor()
 950                 // if it wishes to do so.
 951                 DispatchResult res = cur.dispatch(cmd);
 952
 953                 if (bv_->fitCursor() || res.update())
 954                         bv_->update();
 955
 956                 // see workAreaKeyPress
 957                 cursor_timeout.restart();
 958                 screen().showCursor(*bv_);
 959
 960                 // skip these when selecting
 961                 if (cmd.action != LFUN_MOUSE_MOTION) {
 962                         owner_->updateLayoutChoice();
 963                         owner_->updateToolbar();
 964                 }
 965
 966                 // slight hack: this is only called currently when we
 967                 // clicked somewhere, so we force through the display
 968                 // of the new status here.
 969                 owner_->clearMessage();
 970                 return true;
 971         }
 972
 973         default:
 974                 lyxerr << "*** UNDISPATCHED: " << cmd;
 975                 //owner_->dispatch(cmd);
 976         }
 977         return true;
 978 }
 979
 980
 981 bool BufferView::Pimpl::dispatch(FuncRequest const & cmd)
 982 {
 983         lyxerr << "*** BufferView::Pimpl: request: " << cmd << std::endl;
 984         // Make sure that the cached BufferView is correct.
 985         lyxerr[Debug::ACTION] << "BufferView::Pimpl::Dispatch:"
 986                 << " action[" << cmd.action << ']'
 987                 << " arg[" << cmd.argument << ']'
 988                 << " x[" << cmd.x << ']'
 989                 << " y[" << cmd.y << ']'
 990                 << " button[" << cmd.button() << ']'
 991                 << endl;
 992
 993         LyXTextClass const & tclass = buffer_->params().getLyXTextClass();
 994         LCursor & cur = bv_->cursor();
 995
 996         switch (cmd.action) {
 997
 998         case LFUN_SCROLL_INSET:
 999                 // this is not handled here as this function is only active
1000                 // if we have a locking_inset and that one is (or contains)
1001                 // a tabular-inset
1002                 break;
1003
1004         case LFUN_FILE_INSERT:
1005                 MenuInsertLyXFile(cmd.argument);
1006                 break;
1007
1008         case LFUN_FILE_INSERT_ASCII_PARA:
1009                 InsertAsciiFile(bv_, cmd.argument, true);
1010                 break;
1011
1012         case LFUN_FILE_INSERT_ASCII:
1013                 InsertAsciiFile(bv_, cmd.argument, false);
1014                 break;
1015
1016         case LFUN_FONT_STATE:
1017                 owner_->getLyXFunc().setMessage(currentState(bv_));
1018                 break;
1019
1020         case LFUN_INSERT_LABEL: {
1021                 // Try and generate a valid label
1022                 string const contents = cmd.argument.empty() ?
1023                         getPossibleLabel(*bv_) : cmd.argument;
1024                 InsetCommandParams icp("label", contents);
1025                 string data = InsetCommandMailer::params2string("label", icp);
1026                 owner_->getDialogs().show("label", data, 0);
1027                 break;
1028         }
1029
1030         case LFUN_BOOKMARK_SAVE:
1031                 savePosition(strToUnsignedInt(cmd.argument));
1032                 break;
1033
1034         case LFUN_BOOKMARK_GOTO:
1035                 restorePosition(strToUnsignedInt(cmd.argument));
1036                 break;
1037
1038         case LFUN_REF_GOTO: {
1039                 string label = cmd.argument;
1040                 if (label.empty()) {
1041                         InsetRef * inset =
1042                                 static_cast<InsetRef*>(getInsetByCode(InsetBase::REF_CODE));
1043                         if (inset) {
1044                                 label = inset->getContents();
1045                                 savePosition(0);
1046                         }
1047                 }
1048
1049                 if (!label.empty())
1050                         bv_->gotoLabel(label);
1051         }
1052         break;
1053
1054         // --- accented characters ---------------------------
1055
1056         case LFUN_UMLAUT:
1057         case LFUN_CIRCUMFLEX:
1058         case LFUN_GRAVE:
1059         case LFUN_ACUTE:
1060         case LFUN_TILDE:
1061         case LFUN_CEDILLA:
1062         case LFUN_MACRON:
1063         case LFUN_DOT:
1064         case LFUN_UNDERDOT:
1065         case LFUN_UNDERBAR:
1066         case LFUN_CARON:
1067         case LFUN_SPECIAL_CARON:
1068         case LFUN_BREVE:
1069         case LFUN_TIE:
1070         case LFUN_HUNG_UMLAUT:
1071         case LFUN_CIRCLE:
1072         case LFUN_OGONEK:
1073                 if (cmd.argument.empty()) {
1074                         // As always...
1075                         owner_->getLyXFunc().handleKeyFunc(cmd.action);
1076                 } else {
1077                         owner_->getLyXFunc().handleKeyFunc(cmd.action);
1078                         owner_->getIntl().getTransManager()
1079                                 .TranslateAndInsert(cmd.argument[0], bv_->getLyXText());
1080                         update();
1081                 }
1082                 break;
1083
1084         case LFUN_INSET_INSERT: {
1085                 // Same as above.
1086                 BOOST_ASSERT(false);
1087                 InsetBase * inset = createInset(bv_, cmd);
1088                 if (!inset || !insertInset(inset))
1089                         delete inset;
1090                 break;
1091         }
1092
1093         case LFUN_FLOAT_LIST:
1094                 if (tclass.floats().typeExist(cmd.argument)) {
1095                         InsetBase * inset = new InsetFloatList(cmd.argument);
1096                         if (!insertInset(inset, tclass.defaultLayoutName()))
1097                                 delete inset;
1098                 } else {
1099                         lyxerr << "Non-existent float type: "
1100                                << cmd.argument << endl;
1101                 }
1102                 break;
1103
1104         case LFUN_LAYOUT_PARAGRAPH: {
1105                 string data;
1106                 params2string(*bv_->getLyXText()->cursorPar(), data);
1107                 data = "show\n" + data;
1108                 bv_->owner()->getDialogs().show("paragraph", data);
1109                 break;
1110         }
1111
1112         case LFUN_PARAGRAPH_UPDATE:
1113                 updateParagraphDialog();
1114                 break;
1115
1116         case LFUN_PARAGRAPH_APPLY:
1117                 setParagraphParams(*bv_, cmd.argument);
1118                 break;
1119
1120         case LFUN_THESAURUS_ENTRY: {
1121                 string arg = cmd.argument;
1122
1123                 if (arg.empty()) {
1124                         arg = bv_->getLyXText()->selectionAsString(*buffer_,
1125                                                                    false);
1126
1127                         // FIXME
1128                         if (arg.size() > 100 || arg.empty()) {
1129                                 // Get word or selection
1130                                 bv_->getLyXText()->selectWordWhenUnderCursor(lyx::WHOLE_WORD);
1131                                 arg = bv_->getLyXText()->selectionAsString(*buffer_, false);
1132                                 // FIXME: where is getLyXText()->unselect(bv_) ?
1133                         }
1134                 }
1135
1136                 bv_->owner()->getDialogs().show("thesaurus", arg);
1137                 break;
1138         }
1139
1140         case LFUN_TRACK_CHANGES:
1141                 trackChanges();
1142                 break;
1143
1144         case LFUN_MERGE_CHANGES:
1145                 owner_->getDialogs().show("changes");
1146                 break;
1147
1148         case LFUN_ACCEPT_ALL_CHANGES: {
1149                 bv_->text()->setCursor(0, 0);
1150 #warning FIXME changes
1151                 while (lyx::find::findNextChange(bv_))
1152                         bv_->getLyXText()->acceptChange();
1153                 update();
1154                 break;
1155         }
1156
1157         case LFUN_REJECT_ALL_CHANGES: {
1158                 bv_->text()->setCursor(0, 0);
1159 #warning FIXME changes
1160                 while (lyx::find::findNextChange(bv_))
1161                         bv_->getLyXText()->rejectChange();
1162                 update();
1163                 break;
1164         }
1165
1166         case LFUN_ACCEPT_CHANGE: {
1167                 bv_->getLyXText()->acceptChange();
1168                 update();
1169                 break;
1170         }
1171
1172         case LFUN_REJECT_CHANGE: {
1173                 bv_->getLyXText()->rejectChange();
1174                 update();
1175                 break;
1176         }
1177
1178         case LFUN_WORD_FIND:
1179                 lyx::find::find(bv_, cmd);
1180                 break;
1181
1182         case LFUN_WORD_REPLACE:
1183                 lyx::find::replace(bv_, cmd);
1184                 break;
1185
1186         case LFUN_MARK_OFF:
1187                 cur.clearSelection();
1188                 bv_->update();
1189                 cur.resetAnchor();
1190                 cmd.message(N_("Mark off"));
1191                 break;
1192
1193         case LFUN_MARK_ON:
1194                 cur.clearSelection();
1195                 cur.mark() = true;
1196                 bv_->update();
1197                 cur.resetAnchor();
1198                 cmd.message(N_("Mark on"));
1199                 break;
1200
1201         case LFUN_SETMARK:
1202                 cur.clearSelection();
1203                 if (cur.mark()) {
1204                         cmd.message(N_("Mark removed"));
1205                 } else {
1206                         cur.mark() = true;
1207                         cmd.message(N_("Mark set"));
1208                 }
1209                 cur.resetAnchor();
1210                 bv_->update();
1211                 break;
1212
1213         case LFUN_UNKNOWN_ACTION:
1214                 cmd.errorMessage(N_("Unknown function!"));
1215                 break;
1216
1217         default:
1218                 return cur.dispatch(cmd).dispatched();
1219         }
1220
1221         return true;
1222 }
1223
1224
1225 bool BufferView::Pimpl::insertInset(InsetBase * inset, string const & lout)
1226 {
1227         // not quite sure if we want this...
1228         bv_->text()->recUndo(bv_->text()->cursor().par());
1229         freezeUndo();
1230
1231         bv_->cursor().clearSelection();
1232         if (!lout.empty()) {
1233                 bv_->text()->breakParagraph(bv_->buffer()->paragraphs());
1234
1235                 if (!bv_->text()->cursorPar()->empty()) {
1236                         bv_->text()->cursorLeft(bv_);
1237                         bv_->text()->breakParagraph(bv_->buffer()->paragraphs());
1238                 }
1239
1240                 string lres = lout;
1241                 LyXTextClass const & tclass = buffer_->params().getLyXTextClass();
1242                 bool hasLayout = tclass.hasLayout(lres);
1243
1244                 bv_->text()->setLayout(hasLayout ? lres : tclass.defaultLayoutName());
1245                 bv_->text()->setParagraph(Spacing(), LYX_ALIGN_LAYOUT, string(), 0);
1246         }
1247         bv_->cursor().innerText()->insertInset(inset);
1248         unFreezeUndo();
1249         return true;
1250 }
1251
1252
1253 bool BufferView::Pimpl::ChangeInsets(InsetBase::Code code,
1254                                      string const & from, string const & to)
1255 {
1256         bool need_update = false;
1257         CursorSlice cur = bv_->text()->cursor();
1258
1259         ParIterator end = bv_->buffer()->par_iterator_end();
1260         for (ParIterator it = bv_->buffer()->par_iterator_begin();
1261              it != end; ++it) {
1262                 bool changed_inset = false;
1263                 for (InsetList::iterator it2 = it->insetlist.begin();
1264                      it2 != it->insetlist.end(); ++it2) {
1265                         if (it2->inset->lyxCode() == code) {
1266                                 InsetCommand * inset = static_cast<InsetCommand *>(it2->inset);
1267                                 if (inset->getContents() == from) {
1268                                         inset->setContents(to);
1269                                         changed_inset = true;
1270                                 }
1271                         }
1272                 }
1273                 if (changed_inset) {
1274                         need_update = true;
1275
1276                         // FIXME
1277
1278                         // The test it.size() == 1 was needed to prevent crashes.
1279                         // How to set the cursor correctly when it.size() > 1 ??
1280                         if (it.size() == 1) {
1281                                 bv_->text()->setCursorIntern(bv_->text()->parOffset(it.pit()), 0);
1282                                 bv_->text()->redoParagraph(bv_->text()->cursorPar());
1283                         }
1284                 }
1285         }
1286         bv_->text()->setCursorIntern(cur.par(), cur.pos());
1287         return need_update;
1288 }
1289
1290
1291 void BufferView::Pimpl::updateParagraphDialog()
1292 {
1293         if (!bv_->owner()->getDialogs().visible("paragraph"))
1294                 return;
1295         CursorSlice const & cur = bv_->cursor().innerTextSlice();
1296         LyXText * text = bv_->cursor().innerText();
1297         Paragraph const & par = *text->getPar(cur.par());
1298         string data;
1299         params2string(par, data);
1300
1301         // Will the paragraph accept changes from the dialog?
1302         InsetBase * const inset = cur.inset();
1303         bool const accept =
1304                 !(inset && inset->forceDefaultParagraphs(inset));
1305
1306         data = "update " + tostr(accept) + '\n' + data;
1307         bv_->owner()->getDialogs().update("paragraph", data);
1308 }