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