src/BufferView_pimpl.C

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