src/BufferView_pimpl.C

   1 /**
   2  * \file BufferView_pimpl.C
   3  * Copyright 2002 the LyX Team
   4  * Read the file COPYING
   5  *
   6  * \author various
   7  */
   8
   9 #include <config.h>
  10
  11 #ifdef __GNUG__
  12 #pragma implementation
  13 #endif
  14
  15 #include "BufferView_pimpl.h"
  16 #include "frontends/WorkArea.h"
  17 #include "frontends/screen.h"
  18 #include "frontends/LyXScreenFactory.h"
  19 #include "frontends/WorkAreaFactory.h"
  20 #include "frontends/Dialogs.h"
  21 #include "frontends/Alert.h"
  22 #include "frontends/FileDialog.h"
  23 #include "frontends/mouse_state.h"
  24 #include "lyxtext.h"
  25 #include "lyxrow.h"
  26 #include "paragraph.h"
  27 #include "frontends/LyXView.h"
  28 #include "commandtags.h"
  29 #include "lyxfunc.h"
  30 #include "debug.h"
  31 #include "bufferview_funcs.h"
  32 #include "TextCache.h"
  33 #include "bufferlist.h"
  34 #include "lyxrc.h"
  35 #include "intl.h"
  36 // added for Dispatch functions
  37 #include "lyx_cb.h"
  38 #include "lyx_main.h"
  39 #include "FloatList.h"
  40 #include "gettext.h"
  41 #include "ParagraphParameters.h"
  42 #include "undo_funcs.h"
  43 #include "funcrequest.h"
  44
  45 #include "insets/insetbib.h"
  46 #include "insets/insettext.h"
  47 #include "insets/insetlatexaccent.h"
  48 #include "insets/insettoc.h"
  49 #include "insets/insetindex.h"
  50 #include "insets/insetref.h"
  51 #include "insets/insetinclude.h"
  52 #include "insets/insetcite.h"
  53 #include "insets/insetgraphics.h"
  54 #include "insets/insetmarginal.h"
  55 #include "insets/insetfloatlist.h"
  56
  57 #include "mathed/formulabase.h"
  58
  59 #include "graphics/Previews.h"
  60
  61 #include "support/LAssert.h"
  62 #include "support/lstrings.h"
  63 #include "support/filetools.h"
  64
  65 #include <boost/bind.hpp>
  66 #include <boost/signals/connection.hpp>
  67 #include "BoostFormat.h"
  68
  69 #include <unistd.h>
  70 #include <sys/wait.h>
  71
  72
  73 using std::vector;
  74 using std::find_if;
  75 using std::find;
  76 using std::pair;
  77 using std::endl;
  78 using std::make_pair;
  79 using std::min;
  80
  81 using lyx::pos_type;
  82
  83 extern BufferList bufferlist;
  84
  85
  86 namespace {
  87
  88 unsigned int const saved_positions_num = 20;
  89
  90 // All the below connection objects are needed because of a bug in some
  91 // versions of GCC (<=2.96 are on the suspects list.) By having and assigning
  92 // to these connections we avoid a segfault upon startup, and also at exit.
  93 // (Lgb)
  94
  95 boost::signals::connection dispatchcon;
  96 boost::signals::connection timecon;
  97 boost::signals::connection doccon;
  98 boost::signals::connection resizecon;
  99 boost::signals::connection kpresscon;
 100 boost::signals::connection selectioncon;
 101 boost::signals::connection lostcon;
 102
 103
 104 } // anon namespace
 105
 106
 107 BufferView::Pimpl::Pimpl(BufferView * bv, LyXView * owner,
 108              int xpos, int ypos, int width, int height)
 109         : bv_(bv), owner_(owner), buffer_(0), cursor_timeout(400),
 110           using_xterm_cursor(false)
 111 {
 112         workarea_.reset(WorkAreaFactory::create(xpos, ypos, width, height));
 113         screen_.reset(LyXScreenFactory::create(workarea()));
 114
 115         // Setup the signals
 116         doccon = workarea().scrollDocView
 117                 .connect(boost::bind(&BufferView::Pimpl::scrollDocView, this, _1));
 118         resizecon = workarea().workAreaResize
 119                 .connect(boost::bind(&BufferView::Pimpl::workAreaResize, this));
 120         dispatchcon = workarea().dispatch
 121                 .connect(boost::bind(&BufferView::Pimpl::dispatch, this, _1));
 122         kpresscon = workarea().workAreaKeyPress
 123                 .connect(boost::bind(&BufferView::Pimpl::workAreaKeyPress, this, _1, _2));
 124         selectioncon = workarea().selectionRequested
 125                 .connect(boost::bind(&BufferView::Pimpl::selectionRequested, this));
 126         lostcon = workarea().selectionLost
 127                 .connect(boost::bind(&BufferView::Pimpl::selectionLost, this));
 128
 129         timecon = cursor_timeout.timeout
 130                 .connect(boost::bind(&BufferView::Pimpl::cursorToggle, this));
 131         cursor_timeout.start();
 132         saved_positions.resize(saved_positions_num);
 133 }
 134
 135
 136 WorkArea & BufferView::Pimpl::workarea() const
 137 {
 138         return *workarea_.get();
 139 }
 140
 141
 142 LyXScreen & BufferView::Pimpl::screen() const
 143 {
 144         return *screen_.get();
 145 }
 146
 147
 148 Painter & BufferView::Pimpl::painter() const
 149 {
 150         return workarea().getPainter();
 151 }
 152
 153
 154 void BufferView::Pimpl::buffer(Buffer * b)
 155 {
 156         lyxerr[Debug::INFO] << "Setting buffer in BufferView ("
 157                             << b << ")" << endl;
 158         if (buffer_) {
 159                 buffer_->delUser(bv_);
 160
 161                 // Put the old text into the TextCache, but
 162                 // only if the buffer is still loaded.
 163                 // Also set the owner of the test to 0
 164                 //              bv_->text->owner(0);
 165                 textcache.add(buffer_, workarea().workWidth(), bv_->text);
 166                 if (lyxerr.debugging())
 167                         textcache.show(lyxerr, "BufferView::buffer");
 168
 169                 bv_->text = 0;
 170         }
 171
 172         // set current buffer
 173         buffer_ = b;
 174
 175         if (bufferlist.getState() == BufferList::CLOSING) return;
 176
 177         // if we are closing the buffer, use the first buffer as current
 178         if (!buffer_) {
 179                 buffer_ = bufferlist.first();
 180         }
 181
 182         if (buffer_) {
 183                 lyxerr[Debug::INFO] << "Buffer addr: " << buffer_ << endl;
 184                 buffer_->addUser(bv_);
 185
 186                 // If we don't have a text object for this, we make one
 187                 if (bv_->text == 0) {
 188                         resizeCurrentBuffer();
 189                 }
 190
 191                 // FIXME: needed when ?
 192                 bv_->text->first_y =
 193                         screen().topCursorVisible(bv_->text->cursor, bv_->text->first_y);
 194
 195                 // Similarly, buffer-dependent dialogs should be updated or
 196                 // hidden. This should go here because some dialogs (eg ToC)
 197                 // require bv_->text.
 198                 owner_->getDialogs().updateBufferDependent(true);
 199         } else {
 200                 lyxerr[Debug::INFO] << "  No Buffer!" << endl;
 201                 owner_->getDialogs().hideBufferDependent();
 202
 203                 // Also remove all remaining text's from the testcache.
 204                 // (there should not be any!) (if there is any it is a
 205                 // bug!)
 206                 if (lyxerr.debugging())
 207                         textcache.show(lyxerr, "buffer delete all");
 208                 textcache.clear();
 209         }
 210
 211         repaint();
 212         updateScrollbar();
 213         owner_->updateMenubar();
 214         owner_->updateToolbar();
 215         owner_->updateLayoutChoice();
 216         owner_->updateWindowTitle();
 217
 218         if (grfx::Previews::activated() && buffer_)
 219                 grfx::Previews::get().generateBufferPreviews(*buffer_);
 220 }
 221
 222
 223 bool BufferView::Pimpl::fitCursor()
 224 {
 225         bool ret;
 226
 227         if (bv_->theLockingInset()) {
 228                 bv_->theLockingInset()->fitInsetCursor(bv_);
 229                 ret = true;
 230         } else {
 231                 ret = screen().fitCursor(bv_->text, bv_);
 232         }
 233
 234         bv_->owner()->getDialogs().updateParagraph();
 235         if (ret)
 236                 updateScrollbar();
 237         return ret;
 238 }
 239
 240
 241 void BufferView::Pimpl::redoCurrentBuffer()
 242 {
 243         lyxerr[Debug::INFO] << "BufferView::redoCurrentBuffer" << endl;
 244         if (buffer_ && bv_->text) {
 245                 resizeCurrentBuffer();
 246                 updateScrollbar();
 247                 owner_->updateLayoutChoice();
 248                 repaint();
 249         }
 250 }
 251
 252
 253 int BufferView::Pimpl::resizeCurrentBuffer()
 254 {
 255         lyxerr[Debug::INFO] << "resizeCurrentBuffer" << endl;
 256
 257         Paragraph * par = 0;
 258         Paragraph * selstartpar = 0;
 259         Paragraph * selendpar = 0;
 260         UpdatableInset * the_locking_inset = 0;
 261
 262         pos_type pos = 0;
 263         pos_type selstartpos = 0;
 264         pos_type selendpos = 0;
 265         bool selection = false;
 266         bool mark_set  = false;
 267
 268         owner_->prohibitInput();
 269
 270         owner_->message(_("Formatting document..."));
 271
 272         if (bv_->text) {
 273                 par = bv_->text->cursor.par();
 274                 pos = bv_->text->cursor.pos();
 275                 selstartpar = bv_->text->selection.start.par();
 276                 selstartpos = bv_->text->selection.start.pos();
 277                 selendpar = bv_->text->selection.end.par();
 278                 selendpos = bv_->text->selection.end.pos();
 279                 selection = bv_->text->selection.set();
 280                 mark_set = bv_->text->selection.mark();
 281                 the_locking_inset = bv_->theLockingInset();
 282                 buffer_->resizeInsets(bv_);
 283                 // I don't think the delete and new are necessary here we just could
 284                 // call only init! (Jug 20020419)
 285                 delete bv_->text;
 286                 bv_->text = new LyXText(bv_);
 287                 bv_->text->init(bv_);
 288         } else {
 289                 // See if we have a text in TextCache that fits
 290                 // the new buffer_ with the correct width.
 291                 bv_->text = textcache.findFit(buffer_, workarea().workWidth());
 292                 if (bv_->text) {
 293                         if (lyxerr.debugging()) {
 294                                 lyxerr << "Found a LyXText that fits:\n";
 295                                 textcache.show(lyxerr, make_pair(buffer_, make_pair(workarea().workWidth(), bv_->text)));
 296                         }
 297                         // Set the owner of the newly found text
 298                         //      bv_->text->owner(bv_);
 299                         if (lyxerr.debugging())
 300                                 textcache.show(lyxerr, "resizeCurrentBuffer");
 301
 302                         buffer_->resizeInsets(bv_);
 303                 } else {
 304                         bv_->text = new LyXText(bv_);
 305                         bv_->text->init(bv_);
 306                         //buffer_->resizeInsets(bv_);
 307                 }
 308         }
 309
 310         if (par) {
 311                 bv_->text->selection.set(true);
 312                 // At this point just to avoid the Delete-Empty-Paragraph-
 313                 // Mechanism when setting the cursor.
 314                 bv_->text->selection.mark(mark_set);
 315                 if (selection) {
 316                         bv_->text->setCursor(bv_, selstartpar, selstartpos);
 317                         bv_->text->selection.cursor = bv_->text->cursor;
 318                         bv_->text->setCursor(bv_, selendpar, selendpos);
 319                         bv_->text->setSelection(bv_);
 320                         bv_->text->setCursor(bv_, par, pos);
 321                 } else {
 322                         bv_->text->setCursor(bv_, par, pos);
 323                         bv_->text->selection.cursor = bv_->text->cursor;
 324                         bv_->text->selection.set(false);
 325                 }
 326                 // remake the inset locking
 327                 bv_->theLockingInset(the_locking_inset);
 328         }
 329
 330         bv_->text->first_y = screen().topCursorVisible(bv_->text->cursor, bv_->text->first_y);
 331
 332         switchKeyMap();
 333         owner_->allowInput();
 334
 335         updateScrollbar();
 336
 337         return 0;
 338 }
 339
 340
 341 void BufferView::Pimpl::repaint()
 342 {
 343         // Regenerate the screen.
 344         screen().redraw(bv_->text, bv_);
 345 }
 346
 347
 348 void BufferView::Pimpl::updateScrollbar()
 349 {
 350         if (!bv_->text) {
 351                 lyxerr[Debug::GUI] << "no text in updateScrollbar" << endl;
 352                 workarea().setScrollbarParams(0, 0, 0);
 353                 return;
 354         }
 355
 356         LyXText const & t = *bv_->text;
 357
 358         lyxerr[Debug::GUI] << "Updating scrollbar: h " << t.height << ", first_y "
 359                 << t.first_y << ", default height " << t.defaultHeight() << endl;
 360
 361         workarea().setScrollbarParams(t.height, t.first_y, t.defaultHeight());
 362 }
 363
 364
 365 void BufferView::Pimpl::scrollDocView(int value)
 366 {
 367         lyxerr[Debug::GUI] << "scrollDocView of " << value << endl;
 368
 369         if (!buffer_)
 370                 return;
 371
 372         screen().draw(bv_->text, bv_, value);
 373
 374         if (!lyxrc.cursor_follows_scrollbar)
 375                 return;
 376
 377         LyXText * vbt = bv_->text;
 378
 379         int const height = vbt->defaultHeight();
 380         int const first = static_cast<int>((bv_->text->first_y + height));
 381         int const last = static_cast<int>((bv_->text->first_y + workarea().workHeight() - height));
 382
 383         if (vbt->cursor.y() < first)
 384                 vbt->setCursorFromCoordinates(bv_, 0, first);
 385         else if (vbt->cursor.y() > last)
 386                 vbt->setCursorFromCoordinates(bv_, 0, last);
 387 }
 388
 389
 390 void BufferView::Pimpl::scroll(int lines)
 391 {
 392         if (!buffer_) {
 393                 return;
 394         }
 395
 396         LyXText const * t = bv_->text;
 397         int const line_height = t->defaultHeight();
 398
 399         // The new absolute coordinate
 400         int new_first_y = t->first_y + lines * line_height;
 401
 402         // Restrict to a valid value
 403         new_first_y = std::min(t->height - 4 * line_height, new_first_y);
 404         new_first_y = std::max(0, new_first_y);
 405
 406         scrollDocView(new_first_y);
 407
 408         // Update the scrollbar.
 409         workarea().setScrollbarParams(t->height, t->first_y, t->defaultHeight());
 410 }
 411
 412
 413 void BufferView::Pimpl::workAreaKeyPress(LyXKeySymPtr key,
 414                                          key_modifier::state state)
 415 {
 416         bv_->owner()->getLyXFunc().processKeySym(key, state);
 417 }
 418
 419
 420 void BufferView::Pimpl::selectionRequested()
 421 {
 422         static string sel;
 423
 424         if (!available())
 425                 return;
 426
 427         LyXText * text = bv_->getLyXText();
 428
 429         if (text->selection.set() &&
 430                 (!bv_->text->xsel_cache.set() ||
 431                  text->selection.start != bv_->text->xsel_cache.start ||
 432                  text->selection.end != bv_->text->xsel_cache.end))
 433         {
 434                 bv_->text->xsel_cache = text->selection;
 435                 sel = text->selectionAsString(bv_->buffer(), false);
 436         } else if (!text->selection.set()) {
 437                 sel = string();
 438                 bv_->text->xsel_cache.set(false);
 439         }
 440         if (!sel.empty()) {
 441                 workarea().putClipboard(sel);
 442         }
 443 }
 444
 445
 446 void BufferView::Pimpl::selectionLost()
 447 {
 448         if (available()) {
 449                 hideCursor();
 450                 toggleSelection();
 451                 bv_->getLyXText()->clearSelection();
 452                 showCursor();
 453                 bv_->text->xsel_cache.set(false);
 454         }
 455 }
 456
 457
 458 void BufferView::Pimpl::workAreaResize()
 459 {
 460         static int work_area_width;
 461         static int work_area_height;
 462
 463         bool const widthChange = workarea().workWidth() != work_area_width;
 464         bool const heightChange = workarea().workHeight() != work_area_height;
 465
 466         // update from work area
 467         work_area_width = workarea().workWidth();
 468         work_area_height = workarea().workHeight();
 469
 470         if (buffer_ != 0) {
 471                 if (widthChange) {
 472                         // The visible LyXView need a resize
 473                         resizeCurrentBuffer();
 474
 475                         // Remove all texts from the textcache
 476                         // This is not _really_ what we want to do. What
 477                         // we really want to do is to delete in textcache
 478                         // that does not have a BufferView with matching
 479                         // width, but as long as we have only one BufferView
 480                         // deleting all gives the same result.
 481                         if (lyxerr.debugging())
 482                                 textcache.show(lyxerr, "Expose delete all");
 483                         textcache.clear();
 484                         // FIXME: this is already done in resizeCurrentBuffer() ??
 485                         buffer_->resizeInsets(bv_);
 486                 } else if (heightChange) {
 487                         // fitCursor() ensures we don't jump back
 488                         // to the start of the document on vertical
 489                         // resize
 490                         fitCursor();
 491                 }
 492         }
 493
 494         if (widthChange || heightChange) {
 495                 repaint();
 496         }
 497
 498         // always make sure that the scrollbar is sane.
 499         updateScrollbar();
 500         owner_->updateLayoutChoice();
 501         return;
 502 }
 503
 504
 505 void BufferView::Pimpl::update()
 506 {
 507         if (!bv_->theLockingInset() || !bv_->theLockingInset()->nodraw()) {
 508                 LyXText::text_status st = bv_->text->status();
 509                 screen().update(bv_->text, bv_);
 510                 bool fitc = false;
 511                 while (bv_->text->status() == LyXText::CHANGED_IN_DRAW) {
 512                         bv_->text->fullRebreak(bv_);
 513                         st = LyXText::NEED_MORE_REFRESH;
 514                         bv_->text->setCursor(bv_, bv_->text->cursor.par(),
 515                                              bv_->text->cursor.pos());
 516                         if (bv_->text->selection.set()) {
 517                                 bv_->text->setCursor(bv_, bv_->text->selection.start,
 518                                                      bv_->text->selection.start.par(),
 519                                                      bv_->text->selection.start.pos());
 520                                 bv_->text->setCursor(bv_, bv_->text->selection.end,
 521                                                      bv_->text->selection.end.par(),
 522                                                      bv_->text->selection.end.pos());
 523                         }
 524                         fitc = true;
 525                         bv_->text->status(bv_, st);
 526                         screen().update(bv_->text, bv_);
 527                 }
 528                 // do this here instead of in the screen::update because of
 529                 // the above loop!
 530                 bv_->text->status(bv_, LyXText::UNCHANGED);
 531                 if (fitc)
 532                         fitCursor();
 533         }
 534 }
 535
 536 // Values used when calling update:
 537 // -3 - update
 538 // -2 - update, move sel_cursor if selection, fitcursor
 539 // -1 - update, move sel_cursor if selection, fitcursor, mark dirty
 540 //  0 - update, move sel_cursor if selection, fitcursor
 541 //  1 - update, move sel_cursor if selection, fitcursor, mark dirty
 542 //  3 - update, move sel_cursor if selection
 543 //
 544 // update -
 545 // a simple redraw of the parts that need refresh
 546 //
 547 // move sel_cursor if selection -
 548 // the text's sel_cursor is moved if there is selection is progress
 549 //
 550 // fitcursor -
 551 // fitCursor() is called and the scrollbar updated
 552 //
 553 // mark dirty -
 554 // the buffer is marked dirty.
 555 //
 556 // enum {
 557 //       UPDATE = 0,
 558 //       SELECT = 1,
 559 //       FITCUR = 2,
 560 //       CHANGE = 4
 561 // };
 562 //
 563 // UPDATE_ONLY = UPDATE;
 564 // UPDATE_SELECT = UPDATE | SELECT;
 565 // UPDATE_SELECT_MOVE = UPDATE | SELECT | FITCUR;
 566 // UPDATE_SELECT_MOVE_AFTER_CHANGE = UPDATE | SELECT | FITCUR | CHANGE;
 567 //
 568 // update(-3) -> update(0)         -> update(0) -> update(UPDATE)
 569 // update(-2) -> update(1 + 2)     -> update(3) -> update(SELECT|FITCUR)
 570 // update(-1) -> update(1 + 2 + 4) -> update(7) -> update(SELECT|FITCUR|CHANGE)
 571 // update(1)  -> update(1 + 2 + 4) -> update(7) -> update(SELECT|FITCUR|CHANGE)
 572 // update(3)  -> update(1)         -> update(1) -> update(SELECT)
 573
 574 void BufferView::Pimpl::update(LyXText * text, BufferView::UpdateCodes f)
 575 {
 576         owner_->updateLayoutChoice();
 577
 578         if (!text->selection.set() && (f & SELECT)) {
 579                 text->selection.cursor = text->cursor;
 580         }
 581
 582         text->fullRebreak(bv_);
 583
 584         if (text->inset_owner) {
 585                 text->inset_owner->setUpdateStatus(bv_, InsetText::NONE);
 586                 updateInset(text->inset_owner, false);
 587         } else {
 588                 update();
 589         }
 590
 591         if ((f & FITCUR)) {
 592                 fitCursor();
 593         }
 594
 595         if ((f & CHANGE)) {
 596                 buffer_->markDirty();
 597         }
 598 }
 599
 600
 601 // Callback for cursor timer
 602 void BufferView::Pimpl::cursorToggle()
 603 {
 604         if (!buffer_) {
 605                 cursor_timeout.restart();
 606                 return;
 607         }
 608
 609         if (!bv_->theLockingInset()) {
 610                 screen().cursorToggle(bv_);
 611         } else {
 612                 bv_->theLockingInset()->toggleInsetCursor(bv_);
 613         }
 614
 615         cursor_timeout.restart();
 616 }
 617
 618
 619 bool BufferView::Pimpl::available() const
 620 {
 621         if (buffer_ && bv_->text)
 622                 return true;
 623         return false;
 624 }
 625
 626
 627 void BufferView::Pimpl::beforeChange(LyXText * text)
 628 {
 629         toggleSelection();
 630         text->clearSelection();
 631 }
 632
 633
 634 void BufferView::Pimpl::savePosition(unsigned int i)
 635 {
 636         if (i >= saved_positions_num)
 637                 return;
 638         saved_positions[i] = Position(buffer_->fileName(),
 639                                       bv_->text->cursor.par()->id(),
 640                                       bv_->text->cursor.pos());
 641         if (i > 0) {
 642                 ostringstream str;
 643 #if USE_BOOST_FORMAT
 644                 str << boost::format(_("Saved bookmark %1$d")) % i;
 645 #else
 646                 str << _("Saved bookmark ") << i;
 647 #endif
 648                 owner_->message(STRCONV(str.str()));
 649         }
 650 }
 651
 652
 653 void BufferView::Pimpl::restorePosition(unsigned int i)
 654 {
 655         if (i >= saved_positions_num)
 656                 return;
 657
 658         string const fname = saved_positions[i].filename;
 659
 660         beforeChange(bv_->text);
 661
 662         if (fname != buffer_->fileName()) {
 663                 Buffer * b = bufferlist.exists(fname) ?
 664                         bufferlist.getBuffer(fname) :
 665                         bufferlist.loadLyXFile(fname); // don't ask, just load it
 666                 if (b != 0) buffer(b);
 667         }
 668
 669         Paragraph * par = buffer_->getParFromID(saved_positions[i].par_id);
 670         if (!par)
 671                 return;
 672
 673         bv_->text->setCursor(bv_, par,
 674                              min(par->size(), saved_positions[i].par_pos));
 675
 676         update(bv_->text, BufferView::SELECT | BufferView::FITCUR);
 677         if (i > 0) {
 678                 ostringstream str;
 679 #if USE_BOOST_FORMAT
 680                 str << boost::format(_("Moved to bookmark %1$d")) % i;
 681 #else
 682                 str << _("Moved to bookmark ") << i;
 683 #endif
 684                 owner_->message(STRCONV(str.str()));
 685         }
 686 }
 687
 688
 689 bool BufferView::Pimpl::isSavedPosition(unsigned int i)
 690 {
 691         if (i >= saved_positions_num)
 692                 return false;
 693
 694         return !saved_positions[i].filename.empty();
 695 }
 696
 697
 698 void BufferView::Pimpl::switchKeyMap()
 699 {
 700         if (!lyxrc.rtl_support)
 701                 return;
 702
 703         LyXText * text = bv_->getLyXText();
 704         if (text->real_current_font.isRightToLeft()
 705             && !(bv_->theLockingInset()
 706                  && bv_->theLockingInset()->lyxCode() == Inset::ERT_CODE))
 707         {
 708                 if (owner_->getIntl().keymap == Intl::PRIMARY)
 709                         owner_->getIntl().KeyMapSec();
 710         } else {
 711                 if (owner_->getIntl().keymap == Intl::SECONDARY)
 712                         owner_->getIntl().KeyMapPrim();
 713         }
 714 }
 715
 716
 717 void BufferView::Pimpl::insetUnlock()
 718 {
 719         if (bv_->theLockingInset()) {
 720                 bv_->theLockingInset()->insetUnlock(bv_);
 721                 bv_->theLockingInset(0);
 722                 finishUndo();
 723         }
 724 }
 725
 726
 727 void BufferView::Pimpl::showCursor()
 728 {
 729         if (bv_->theLockingInset())
 730                 bv_->theLockingInset()->showInsetCursor(bv_);
 731         else
 732                 screen().showCursor(bv_->text, bv_);
 733 }
 734
 735
 736 void BufferView::Pimpl::hideCursor()
 737 {
 738         if (!bv_->theLockingInset())
 739                 screen().hideCursor();
 740 }
 741
 742
 743 void BufferView::Pimpl::toggleSelection(bool b)
 744 {
 745         if (bv_->theLockingInset())
 746                 bv_->theLockingInset()->toggleSelection(bv_, b);
 747         screen().toggleSelection(bv_->text, bv_, b);
 748 }
 749
 750
 751 void BufferView::Pimpl::toggleToggle()
 752 {
 753         screen().toggleToggle(bv_->text, bv_);
 754 }
 755
 756
 757 void BufferView::Pimpl::center()
 758 {
 759         LyXText * t = bv_->text;
 760
 761         beforeChange(t);
 762         int const half_height = workarea().workHeight() / 2;
 763         int new_y = 0;
 764
 765         if (t->cursor.y() > half_height) {
 766                 new_y = t->cursor.y() - half_height;
 767         }
 768
 769         // FIXME: can we do this w/o calling screen directly ?
 770         // This updates first_y but means the fitCursor() call
 771         // from the update(FITCUR) doesn't realise that we might
 772         // have moved (e.g. from GOTOPARAGRAPH), so doesn't cause
 773         // the scrollbar to be updated as it should, so we have
 774         // to do it manually. Any operation that does a center()
 775         // and also might have moved first_y must make sure to call
 776         // updateScrollbar() currently. Never mind that this is a
 777         // pretty obfuscated way of updating t->first_y
 778         screen().draw(t, bv_, new_y);
 779
 780         update(t, BufferView::SELECT | BufferView::FITCUR);
 781 }
 782
 783
 784 void BufferView::Pimpl::stuffClipboard(string const & stuff) const
 785 {
 786         workarea().putClipboard(stuff);
 787 }
 788
 789
 790 /*
 791  * Dispatch functions for actions which can be valid for BufferView->text
 792  * and/or InsetText->text!!!
 793  */
 794
 795
 796 Inset * BufferView::Pimpl::getInsetByCode(Inset::Code code)
 797 {
 798 #if 0
 799         LyXCursor cursor = bv_->getLyXText()->cursor;
 800         Buffer::inset_iterator it =
 801                 find_if(Buffer::inset_iterator(
 802                         cursor.par(), cursor.pos()),
 803                         buffer_->inset_iterator_end(),
 804                         lyx::compare_memfun(&Inset::lyxCode, code));
 805         return it != buffer_->inset_iterator_end() ? (*it) : 0;
 806 #else
 807         // Ok, this is a little bit too brute force but it
 808         // should work for now. Better infrastructure is comming. (Lgb)
 809
 810         Buffer * b = bv_->buffer();
 811         LyXCursor cursor = bv_->getLyXText()->cursor;
 812
 813         Buffer::inset_iterator beg = b->inset_iterator_begin();
 814         Buffer::inset_iterator end = b->inset_iterator_end();
 815
 816         bool cursor_par_seen = false;
 817
 818         for (; beg != end; ++beg) {
 819                 if (beg.getPar() == cursor.par()) {
 820                         cursor_par_seen = true;
 821                 }
 822                 if (cursor_par_seen) {
 823                         if (beg.getPar() == cursor.par()
 824                             && beg.getPos() >= cursor.pos()) {
 825                                 break;
 826                         } else if (beg.getPar() != cursor.par()) {
 827                                 break;
 828                         }
 829                 }
 830
 831         }
 832         if (beg != end) {
 833                 // Now find the first inset that matches code.
 834                 for (; beg != end; ++beg) {
 835                         if (beg->lyxCode() == code) {
 836                                 return &(*beg);
 837                         }
 838                 }
 839         }
 840         return 0;
 841 #endif
 842 }
 843
 844
 845 void BufferView::Pimpl::MenuInsertLyXFile(string const & filen)
 846 {
 847         string filename = filen;
 848
 849         if (filename.empty()) {
 850                 // Launch a file browser
 851                 string initpath = lyxrc.document_path;
 852
 853                 if (available()) {
 854                         string const trypath = owner_->buffer()->filePath();
 855                         // If directory is writeable, use this as default.
 856                         if (IsDirWriteable(trypath))
 857                                 initpath = trypath;
 858                 }
 859
 860                 FileDialog fileDlg(bv_->owner(),
 861                                    _("Select LyX document to insert"),
 862                         LFUN_FILE_INSERT,
 863                         make_pair(string(_("Documents|#o#O")),
 864                                   string(lyxrc.document_path)),
 865                         make_pair(string(_("Examples|#E#e")),
 866                                   string(AddPath(system_lyxdir, "examples"))));
 867
 868                 FileDialog::Result result =
 869                         fileDlg.open(initpath,
 870                                        _("*.lyx| LyX Documents (*.lyx)"));
 871
 872                 if (result.first == FileDialog::Later)
 873                         return;
 874
 875                 filename = result.second;
 876
 877                 // check selected filename
 878                 if (filename.empty()) {
 879                         owner_->message(_("Canceled."));
 880                         return;
 881                 }
 882         }
 883
 884         // get absolute path of file and add ".lyx" to the filename if
 885         // necessary
 886         filename = FileSearch(string(), filename, "lyx");
 887
 888         string const disp_fn(MakeDisplayPath(filename));
 889
 890         ostringstream s1;
 891 #if USE_BOOST_FORMAT
 892         s1 << boost::format(_("Inserting document %1$s ...")) % disp_fn;
 893 #else
 894         s1 << _("Inserting document ") << disp_fn << _(" ...");
 895 #endif
 896         owner_->message(STRCONV(s1.str()));
 897         bool const res = bv_->insertLyXFile(filename);
 898         if (res) {
 899                 ostringstream str;
 900 #if USE_BOOST_FORMAT
 901                 str << boost::format(_("Document %1$s inserted.")) % disp_fn;
 902 #else
 903                 str << _("Document ") << disp_fn << _(" inserted.");
 904 #endif
 905                 owner_->message(STRCONV(str.str()));
 906         } else {
 907                 ostringstream str;
 908 #if USE_BOOST_FORMAT
 909                 str << boost::format(_("Could not insert document %1$s")) % disp_fn;
 910 #else
 911                 str << _("Could not insert document ") << disp_fn;
 912 #endif
 913                 owner_->message(STRCONV(str.str()));
 914         }
 915 }
 916
 917
 918 bool BufferView::Pimpl::dispatch(FuncRequest const & ev)
 919 {
 920         lyxerr[Debug::ACTION] << "BufferView::Pimpl::Dispatch:"
 921                 << " action[" << ev.action <<"]"
 922                 << " arg[" << ev.argument << "]"
 923                 << " x[" << ev.x << "]"
 924                 << " y[" << ev.y << "]"
 925                 << " button[" << ev.button() << "]"
 926                 << endl;
 927
 928         // e.g. Qt mouse press when no buffer
 929         if (!buffer_)
 930                 return false;
 931
 932         LyXTextClass const & tclass = buffer_->params.getLyXTextClass();
 933
 934         switch (ev.action) {
 935
 936         case LFUN_SCROLL_INSET:
 937                 // this is not handled here as this function is only active
 938                 // if we have a locking_inset and that one is (or contains)
 939                 // a tabular-inset
 940                 break;
 941
 942         case LFUN_INSET_GRAPHICS:
 943         {
 944                 Inset * new_inset = new InsetGraphics;
 945                 if (!insertInset(new_inset)) {
 946                         delete new_inset;
 947                 } else {
 948                         // this is need because you don't use a inset->Edit()
 949                         updateInset(new_inset, true);
 950                         new_inset->edit(bv_);
 951                 }
 952                 break;
 953         }
 954
 955         case LFUN_LAYOUT_COPY:
 956                 bv_->copyEnvironment();
 957                 break;
 958
 959         case LFUN_LAYOUT_PASTE:
 960                 bv_->pasteEnvironment();
 961                 switchKeyMap();
 962                 break;
 963
 964         case LFUN_DEPTH_MIN:
 965                 changeDepth(bv_, bv_->getLyXText(), -1);
 966                 break;
 967
 968         case LFUN_DEPTH_PLUS:
 969                 changeDepth(bv_, bv_->getLyXText(), 1);
 970                 break;
 971
 972         case LFUN_FREE:
 973                 owner_->getDialogs().setUserFreeFont();
 974                 break;
 975
 976         case LFUN_FILE_INSERT:
 977                 MenuInsertLyXFile(ev.argument);
 978                 break;
 979
 980         case LFUN_FILE_INSERT_ASCII_PARA:
 981                 InsertAsciiFile(bv_, ev.argument, true);
 982                 break;
 983
 984         case LFUN_FILE_INSERT_ASCII:
 985                 InsertAsciiFile(bv_, ev.argument, false);
 986                 break;
 987
 988         case LFUN_LANGUAGE:
 989                 lang(bv_, ev.argument);
 990                 switchKeyMap();
 991                 owner_->view_state_changed();
 992                 break;
 993
 994         case LFUN_EMPH:
 995                 emph(bv_);
 996                 owner_->view_state_changed();
 997                 break;
 998
 999         case LFUN_BOLD:
1000                 bold(bv_);
1001                 owner_->view_state_changed();
1002                 break;
1003
1004         case LFUN_NOUN:
1005                 noun(bv_);
1006                 owner_->view_state_changed();
1007                 break;
1008
1009         case LFUN_CODE:
1010                 code(bv_);
1011                 owner_->view_state_changed();
1012                 break;
1013
1014         case LFUN_SANS:
1015                 sans(bv_);
1016                 owner_->view_state_changed();
1017                 break;
1018
1019         case LFUN_ROMAN:
1020                 roman(bv_);
1021                 owner_->view_state_changed();
1022                 break;
1023
1024         case LFUN_DEFAULT:
1025                 styleReset(bv_);
1026                 owner_->view_state_changed();
1027                 break;
1028
1029         case LFUN_UNDERLINE:
1030                 underline(bv_);
1031                 owner_->view_state_changed();
1032                 break;
1033
1034         case LFUN_FONT_SIZE:
1035                 fontSize(bv_, ev.argument);
1036                 owner_->view_state_changed();
1037                 break;
1038
1039         case LFUN_FONT_STATE:
1040                 owner_->getLyXFunc().setMessage(currentState(bv_));
1041                 break;
1042
1043         case LFUN_INSERT_LABEL:
1044                 MenuInsertLabel(bv_, ev.argument);
1045                 break;
1046
1047         case LFUN_REF_INSERT:
1048                 if (ev.argument.empty()) {
1049                         InsetCommandParams p("ref");
1050                         owner_->getDialogs().createRef(p.getAsString());
1051                 } else {
1052                         InsetCommandParams p;
1053                         p.setFromString(ev.argument);
1054
1055                         InsetRef * inset = new InsetRef(p, *buffer_);
1056                         if (!insertInset(inset))
1057                                 delete inset;
1058                         else
1059                                 updateInset(inset, true);
1060                 }
1061                 break;
1062
1063         case LFUN_BOOKMARK_SAVE:
1064                 savePosition(strToUnsignedInt(ev.argument));
1065                 break;
1066
1067         case LFUN_BOOKMARK_GOTO:
1068                 restorePosition(strToUnsignedInt(ev.argument));
1069                 break;
1070
1071         case LFUN_REF_GOTO:
1072         {
1073                 string label = ev.argument;
1074                 if (label.empty()) {
1075                         InsetRef * inset =
1076                                 static_cast<InsetRef*>(getInsetByCode(Inset::REF_CODE));
1077                         if (inset) {
1078                                 label = inset->getContents();
1079                                 savePosition(0);
1080                         }
1081                 }
1082
1083                 if (!label.empty()) {
1084                         //bv_->savePosition(0);
1085                         if (!bv_->gotoLabel(label))
1086                                 Alert::alert(_("Error"),
1087                                            _("Couldn't find this label"),
1088                                            _("in current document."));
1089                 }
1090         }
1091         break;
1092
1093         // --- accented characters ---------------------------
1094
1095         case LFUN_UMLAUT:
1096         case LFUN_CIRCUMFLEX:
1097         case LFUN_GRAVE:
1098         case LFUN_ACUTE:
1099         case LFUN_TILDE:
1100         case LFUN_CEDILLA:
1101         case LFUN_MACRON:
1102         case LFUN_DOT:
1103         case LFUN_UNDERDOT:
1104         case LFUN_UNDERBAR:
1105         case LFUN_CARON:
1106         case LFUN_SPECIAL_CARON:
1107         case LFUN_BREVE:
1108         case LFUN_TIE:
1109         case LFUN_HUNG_UMLAUT:
1110         case LFUN_CIRCLE:
1111         case LFUN_OGONEK:
1112                 if (ev.argument.empty()) {
1113                         // As always...
1114                         owner_->getLyXFunc().handleKeyFunc(ev.action);
1115                 } else {
1116                         owner_->getLyXFunc().handleKeyFunc(ev.action);
1117                         owner_->getIntl().getTransManager()
1118                                 .TranslateAndInsert(ev.argument[0], bv_->getLyXText());
1119                         update(bv_->getLyXText(),
1120                                BufferView::SELECT
1121                                | BufferView::FITCUR
1122                                | BufferView::CHANGE);
1123                 }
1124                 break;
1125
1126         case LFUN_MATH_MACRO:
1127         case LFUN_MATH_DELIM:
1128         case LFUN_INSERT_MATRIX:
1129         case LFUN_INSERT_MATH:
1130         case LFUN_MATH_IMPORT_SELECTION: // Imports LaTeX from the X selection
1131         case LFUN_MATH_DISPLAY:          // Open or create a displayed math inset
1132         case LFUN_MATH_MODE:             // Open or create an inlined math inset
1133         case LFUN_GREEK:                 // Insert a single greek letter
1134                 mathDispatch(FuncRequest(bv_, ev.action, ev.argument));
1135                 break;
1136
1137         case LFUN_CITATION_INSERT:
1138         {
1139                 InsetCommandParams p;
1140                 p.setFromString(ev.argument);
1141
1142                 InsetCitation * inset = new InsetCitation(p);
1143                 if (!insertInset(inset))
1144                         delete inset;
1145                 else {
1146                         inset->setLoadingBuffer(bv_->buffer(), false);
1147                         updateInset(inset, true);
1148                 }
1149
1150         }
1151         break;
1152
1153         case LFUN_INSERT_BIBTEX:
1154         {
1155                 // ale970405+lasgoutt970425
1156                 // The argument can be up to two tokens separated
1157                 // by a space. The first one is the bibstyle.
1158                 string const db = token(ev.argument, ' ', 0);
1159                 string bibstyle = token(ev.argument, ' ', 1);
1160                 if (bibstyle.empty())
1161                         bibstyle = "plain";
1162
1163                 InsetCommandParams p("BibTeX", db, bibstyle);
1164                 InsetBibtex * inset = new InsetBibtex(p);
1165
1166                 if (insertInset(inset)) {
1167                         if (ev.argument.empty())
1168                                 inset->edit(bv_);
1169                 } else
1170                         delete inset;
1171         }
1172         break;
1173
1174         // BibTeX data bases
1175         case LFUN_BIBDB_ADD:
1176         {
1177                 InsetBibtex * inset =
1178                         static_cast<InsetBibtex*>(getInsetByCode(Inset::BIBTEX_CODE));
1179                 if (inset) {
1180                         inset->addDatabase(ev.argument);
1181                 }
1182         }
1183         break;
1184
1185         case LFUN_BIBDB_DEL:
1186         {
1187                 InsetBibtex * inset =
1188                         static_cast<InsetBibtex*>(getInsetByCode(Inset::BIBTEX_CODE));
1189                 if (inset)
1190                         inset->delDatabase(ev.argument);
1191         }
1192         break;
1193
1194         case LFUN_BIBTEX_STYLE:
1195         {
1196                 InsetBibtex * inset =
1197                         static_cast<InsetBibtex*>(getInsetByCode(Inset::BIBTEX_CODE));
1198                 if (inset)
1199                         inset->setOptions(ev.argument);
1200         }
1201         break;
1202
1203         case LFUN_CHILD_INSERT:
1204         {
1205                 InsetInclude::Params p;
1206                 if (!ev.argument.empty())
1207                         p.cparams.setFromString(ev.argument);
1208                 p.masterFilename_ = buffer_->fileName();
1209
1210                 InsetInclude * inset = new InsetInclude(p);
1211                 if (!insertInset(inset))
1212                         delete inset;
1213                 else {
1214                         updateInset(inset, true);
1215                         bv_->owner()->getDialogs().showInclude(inset);
1216                 }
1217         }
1218         break;
1219
1220         case LFUN_FLOAT_LIST:
1221                 if (tclass.floats().typeExist(ev.argument)) {
1222                         Inset * inset = new InsetFloatList(ev.argument);
1223                         if (!insertInset(inset, tclass.defaultLayoutName()))
1224                                 delete inset;
1225                 } else {
1226                         lyxerr << "Non-existent float type: "
1227                                << ev.argument << endl;
1228                 }
1229                 break;
1230
1231         case LFUN_THESAURUS_ENTRY:
1232         {
1233                 string arg = ev.argument;
1234
1235                 if (arg.empty()) {
1236                         arg = bv_->getLyXText()->selectionAsString(buffer_,
1237                                                                    false);
1238
1239                         // FIXME
1240                         if (arg.size() > 100 || arg.empty()) {
1241                                 // Get word or selection
1242                                 bv_->getLyXText()->selectWordWhenUnderCursor(bv_, LyXText::WHOLE_WORD);
1243                                 arg = bv_->getLyXText()->selectionAsString(buffer_, false);
1244                                 // FIXME: where is getLyXText()->unselect(bv_) ?
1245                         }
1246                 }
1247
1248                 bv_->owner()->getDialogs().showThesaurus(arg);
1249         }
1250                 break;
1251
1252         case LFUN_UNKNOWN_ACTION:
1253                 ev.errorMessage(N_("Unknown function!"));
1254                 break;
1255
1256         default:
1257                 return bv_->getLyXText()->dispatch(FuncRequest(ev, bv_));
1258         } // end of switch
1259
1260         return true;
1261 }
1262
1263
1264 bool BufferView::Pimpl::insertInset(Inset * inset, string const & lout)
1265 {
1266         // if we are in a locking inset we should try to insert the
1267         // inset there otherwise this is a illegal function now
1268         if (bv_->theLockingInset()) {
1269                 if (bv_->theLockingInset()->insetAllowed(inset))
1270                         return bv_->theLockingInset()->insertInset(bv_, inset);
1271                 return false;
1272         }
1273
1274         // not quite sure if we want this...
1275         setCursorParUndo(bv_);
1276         freezeUndo();
1277
1278         beforeChange(bv_->text);
1279         if (!lout.empty()) {
1280                 update(bv_->text, BufferView::SELECT|BufferView::FITCUR);
1281                 bv_->text->breakParagraph(bv_);
1282                 update(bv_->text, BufferView::SELECT|BufferView::FITCUR|BufferView::CHANGE);
1283
1284                 if (!bv_->text->cursor.par()->empty()) {
1285                         bv_->text->cursorLeft(bv_);
1286
1287                         bv_->text->breakParagraph(bv_);
1288                         update(bv_->text, BufferView::SELECT|BufferView::FITCUR|BufferView::CHANGE);
1289                 }
1290
1291                 string lres = lout;
1292                 LyXTextClass const & tclass =
1293                         buffer_->params.getLyXTextClass();
1294                 bool hasLayout = tclass.hasLayout(lres);
1295                 string lay = tclass.defaultLayoutName();
1296
1297                 if (hasLayout != false) {
1298                         // layout found
1299                         lay = lres;
1300                 } else {
1301                         // layout not fount using default
1302                         lay = tclass.defaultLayoutName();
1303                 }
1304
1305                 bv_->text->setLayout(bv_, lay);
1306
1307                 bv_->text->setParagraph(bv_, 0, 0,
1308                                    0, 0,
1309                                    VSpace(VSpace::NONE), VSpace(VSpace::NONE),
1310                                    Spacing(),
1311                                    LYX_ALIGN_LAYOUT,
1312                                    string(),
1313                                    0);
1314                 update(bv_->text, BufferView::SELECT|BufferView::FITCUR|BufferView::CHANGE);
1315         }
1316
1317         bv_->text->insertInset(bv_, inset);
1318         update(bv_->text, BufferView::SELECT|BufferView::FITCUR|BufferView::CHANGE);
1319
1320         unFreezeUndo();
1321         return true;
1322 }
1323
1324
1325 void BufferView::Pimpl::updateInset(Inset * inset, bool mark_dirty)
1326 {
1327         if (!inset || !available())
1328                 return;
1329
1330         // first check for locking insets
1331         if (bv_->theLockingInset()) {
1332                 if (bv_->theLockingInset() == inset) {
1333                         if (bv_->text->updateInset(bv_, inset)) {
1334                                 update();
1335                                 if (mark_dirty) {
1336                                         buffer_->markDirty();
1337                                 }
1338                                 updateScrollbar();
1339                                 return;
1340                         }
1341                 } else if (bv_->theLockingInset()->updateInsetInInset(bv_, inset)) {
1342                         if (bv_->text->updateInset(bv_,  bv_->theLockingInset())) {
1343                                 update();
1344                                 if (mark_dirty) {
1345                                         buffer_->markDirty();
1346                                 }
1347                                 updateScrollbar();
1348                                 return;
1349                         }
1350                 }
1351         }
1352
1353         // then check if the inset is a top_level inset (has no owner)
1354         // if yes do the update as always otherwise we have to update the
1355         // toplevel inset where this inset is inside
1356         Inset * tl_inset = inset;
1357         while (tl_inset->owner())
1358                 tl_inset = tl_inset->owner();
1359         hideCursor();
1360         if (tl_inset == inset) {
1361                 update(bv_->text, BufferView::UPDATE);
1362                 if (bv_->text->updateInset(bv_, inset)) {
1363                         if (mark_dirty) {
1364                                 update(bv_->text,
1365                                        BufferView::SELECT
1366                                        | BufferView::FITCUR
1367                                        | BufferView::CHANGE);
1368                         } else {
1369                                 update(bv_->text, SELECT);
1370                         }
1371                         return;
1372                 }
1373         } else if (static_cast<UpdatableInset *>(tl_inset)
1374                            ->updateInsetInInset(bv_, inset))
1375         {
1376                 if (bv_->text->updateInset(bv_, tl_inset)) {
1377                         update();
1378                         updateScrollbar();
1379                 }
1380         }
1381 }