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
 301                         buffer_->resizeInsets(bv_);
 302                 } else {
 303                         bv_->text = new LyXText(bv_);
 304                         bv_->text->init(bv_);
 305                         //buffer_->resizeInsets(bv_);
 306                 }
 307         }
 308
 309         if (par) {
 310                 bv_->text->selection.set(true);
 311                 // At this point just to avoid the Delete-Empty-Paragraph-
 312                 // Mechanism when setting the cursor.
 313                 bv_->text->selection.mark(mark_set);
 314                 if (selection) {
 315                         bv_->text->setCursor(bv_, selstartpar, selstartpos);
 316                         bv_->text->selection.cursor = bv_->text->cursor;
 317                         bv_->text->setCursor(bv_, selendpar, selendpos);
 318                         bv_->text->setSelection(bv_);
 319                         bv_->text->setCursor(bv_, par, pos);
 320                 } else {
 321                         bv_->text->setCursor(bv_, par, pos);
 322                         bv_->text->selection.cursor = bv_->text->cursor;
 323                         bv_->text->selection.set(false);
 324                 }
 325                 // remake the inset locking
 326                 bv_->theLockingInset(the_locking_inset);
 327         }
 328
 329         bv_->text->first_y = screen().topCursorVisible(bv_->text->cursor, bv_->text->first_y);
 330
 331         switchKeyMap();
 332         owner_->allowInput();
 333
 334         updateScrollbar();
 335
 336         return 0;
 337 }
 338
 339
 340 void BufferView::Pimpl::repaint()
 341 {
 342         // Regenerate the screen.
 343         screen().redraw(bv_->text, bv_);
 344 }
 345
 346
 347 void BufferView::Pimpl::updateScrollbar()
 348 {
 349         if (!bv_->text) {
 350                 lyxerr[Debug::GUI] << "no text in updateScrollbar" << endl;
 351                 workarea().setScrollbarParams(0, 0, 0);
 352                 return;
 353         }
 354
 355         LyXText const & t = *bv_->text;
 356
 357         lyxerr[Debug::GUI] << "Updating scrollbar: h " << t.height << ", first_y "
 358                 << t.first_y << ", default height " << t.defaultHeight() << endl;
 359
 360         workarea().setScrollbarParams(t.height, t.first_y, t.defaultHeight());
 361 }
 362
 363
 364 void BufferView::Pimpl::scrollDocView(int value)
 365 {
 366         lyxerr[Debug::GUI] << "scrollDocView of " << value << endl;
 367
 368         if (!buffer_)
 369                 return;
 370
 371         screen().draw(bv_->text, bv_, value);
 372
 373         if (!lyxrc.cursor_follows_scrollbar)
 374                 return;
 375
 376         LyXText * vbt = bv_->text;
 377
 378         int const height = vbt->defaultHeight();
 379         int const first = static_cast<int>((bv_->text->first_y + height));
 380         int const last = static_cast<int>((bv_->text->first_y + workarea().workHeight() - height));
 381
 382         if (vbt->cursor.y() < first)
 383                 vbt->setCursorFromCoordinates(bv_, 0, first);
 384         else if (vbt->cursor.y() > last)
 385                 vbt->setCursorFromCoordinates(bv_, 0, last);
 386 }
 387
 388
 389 void BufferView::Pimpl::scroll(int lines)
 390 {
 391         if (!buffer_) {
 392                 return;
 393         }
 394
 395         LyXText const * t = bv_->text;
 396         int const line_height = t->defaultHeight();
 397
 398         // The new absolute coordinate
 399         int new_first_y = t->first_y + lines * line_height;
 400
 401         // Restrict to a valid value
 402         new_first_y = std::min(t->height - 4 * line_height, new_first_y);
 403         new_first_y = std::max(0, new_first_y);
 404
 405         scrollDocView(new_first_y);
 406
 407         // Update the scrollbar.
 408         workarea().setScrollbarParams(t->height, t->first_y, t->defaultHeight());
 409 }
 410
 411
 412 void BufferView::Pimpl::workAreaKeyPress(LyXKeySymPtr key,
 413                                          key_modifier::state state)
 414 {
 415         bv_->owner()->getLyXFunc().processKeySym(key, state);
 416 }
 417
 418
 419 void BufferView::Pimpl::selectionRequested()
 420 {
 421         static string sel;
 422
 423         if (!available())
 424                 return;
 425
 426         LyXText * text = bv_->getLyXText();
 427
 428         if (text->selection.set() &&
 429                 (!bv_->text->xsel_cache.set() ||
 430                  text->selection.start != bv_->text->xsel_cache.start ||
 431                  text->selection.end != bv_->text->xsel_cache.end))
 432         {
 433                 bv_->text->xsel_cache = text->selection;
 434                 sel = text->selectionAsString(bv_->buffer(), false);
 435         } else if (!text->selection.set()) {
 436                 sel = string();
 437                 bv_->text->xsel_cache.set(false);
 438         }
 439         if (!sel.empty()) {
 440                 workarea().putClipboard(sel);
 441         }
 442 }
 443
 444
 445 void BufferView::Pimpl::selectionLost()
 446 {
 447         if (available()) {
 448                 hideCursor();
 449                 toggleSelection();
 450                 bv_->getLyXText()->clearSelection();
 451                 showCursor();
 452                 bv_->text->xsel_cache.set(false);
 453         }
 454 }
 455
 456
 457 void BufferView::Pimpl::workAreaResize()
 458 {
 459         static int work_area_width;
 460         static int work_area_height;
 461
 462         bool const widthChange = workarea().workWidth() != work_area_width;
 463         bool const heightChange = workarea().workHeight() != work_area_height;
 464
 465         // update from work area
 466         work_area_width = workarea().workWidth();
 467         work_area_height = workarea().workHeight();
 468
 469         if (buffer_ != 0) {
 470                 if (widthChange) {
 471                         // The visible LyXView need a resize
 472                         resizeCurrentBuffer();
 473
 474                         // Remove all texts from the textcache
 475                         // This is not _really_ what we want to do. What
 476                         // we really want to do is to delete in textcache
 477                         // that does not have a BufferView with matching
 478                         // width, but as long as we have only one BufferView
 479                         // deleting all gives the same result.
 480                         if (lyxerr.debugging())
 481                                 textcache.show(lyxerr, "Expose delete all");
 482                         textcache.clear();
 483                         // FIXME: this is already done in resizeCurrentBuffer() ??
 484                         buffer_->resizeInsets(bv_);
 485                 } else if (heightChange) {
 486                         // fitCursor() ensures we don't jump back
 487                         // to the start of the document on vertical
 488                         // resize
 489                         fitCursor();
 490                 }
 491         }
 492
 493         if (widthChange || heightChange) {
 494                 repaint();
 495         }
 496
 497         // always make sure that the scrollbar is sane.
 498         updateScrollbar();
 499         owner_->updateLayoutChoice();
 500         return;
 501 }
 502
 503
 504 void BufferView::Pimpl::update()
 505 {
 506         if (!bv_->theLockingInset() || !bv_->theLockingInset()->nodraw()) {
 507                 LyXText::text_status st = bv_->text->status();
 508                 screen().update(bv_->text, bv_);
 509                 bool fitc = false;
 510                 while (bv_->text->status() == LyXText::CHANGED_IN_DRAW) {
 511                         bv_->text->fullRebreak(bv_);
 512                         st = LyXText::NEED_MORE_REFRESH;
 513                         bv_->text->setCursor(bv_, bv_->text->cursor.par(),
 514                                              bv_->text->cursor.pos());
 515                         if (bv_->text->selection.set()) {
 516                                 bv_->text->setCursor(bv_, bv_->text->selection.start,
 517                                                      bv_->text->selection.start.par(),
 518                                                      bv_->text->selection.start.pos());
 519                                 bv_->text->setCursor(bv_, bv_->text->selection.end,
 520                                                      bv_->text->selection.end.par(),
 521                                                      bv_->text->selection.end.pos());
 522                         }
 523                         fitc = true;
 524                         bv_->text->status(bv_, st);
 525                         screen().update(bv_->text, bv_);
 526                 }
 527                 // do this here instead of in the screen::update because of
 528                 // the above loop!
 529                 bv_->text->status(bv_, LyXText::UNCHANGED);
 530                 if (fitc)
 531                         fitCursor();
 532         }
 533 }
 534
 535 // Values used when calling update:
 536 // -3 - update
 537 // -2 - update, move sel_cursor if selection, fitcursor
 538 // -1 - update, move sel_cursor if selection, fitcursor, mark dirty
 539 //  0 - update, move sel_cursor if selection, fitcursor
 540 //  1 - update, move sel_cursor if selection, fitcursor, mark dirty
 541 //  3 - update, move sel_cursor if selection
 542 //
 543 // update -
 544 // a simple redraw of the parts that need refresh
 545 //
 546 // move sel_cursor if selection -
 547 // the text's sel_cursor is moved if there is selection is progress
 548 //
 549 // fitcursor -
 550 // fitCursor() is called and the scrollbar updated
 551 //
 552 // mark dirty -
 553 // the buffer is marked dirty.
 554 //
 555 // enum {
 556 //       UPDATE = 0,
 557 //       SELECT = 1,
 558 //       FITCUR = 2,
 559 //       CHANGE = 4
 560 // };
 561 //
 562 // UPDATE_ONLY = UPDATE;
 563 // UPDATE_SELECT = UPDATE | SELECT;
 564 // UPDATE_SELECT_MOVE = UPDATE | SELECT | FITCUR;
 565 // UPDATE_SELECT_MOVE_AFTER_CHANGE = UPDATE | SELECT | FITCUR | CHANGE;
 566 //
 567 // update(-3) -> update(0)         -> update(0) -> update(UPDATE)
 568 // update(-2) -> update(1 + 2)     -> update(3) -> update(SELECT|FITCUR)
 569 // update(-1) -> update(1 + 2 + 4) -> update(7) -> update(SELECT|FITCUR|CHANGE)
 570 // update(1)  -> update(1 + 2 + 4) -> update(7) -> update(SELECT|FITCUR|CHANGE)
 571 // update(3)  -> update(1)         -> update(1) -> update(SELECT)
 572
 573 void BufferView::Pimpl::update(LyXText * text, BufferView::UpdateCodes f)
 574 {
 575         owner_->updateLayoutChoice();
 576
 577         if (!text->selection.set() && (f & SELECT)) {
 578                 text->selection.cursor = text->cursor;
 579         }
 580
 581         text->fullRebreak(bv_);
 582
 583         if (text->inset_owner) {
 584                 text->inset_owner->setUpdateStatus(bv_, InsetText::NONE);
 585                 updateInset(text->inset_owner, false);
 586         } else {
 587                 update();
 588         }
 589
 590         if ((f & FITCUR)) {
 591                 fitCursor();
 592         }
 593
 594         if ((f & CHANGE)) {
 595                 buffer_->markDirty();
 596         }
 597 }
 598
 599
 600 // Callback for cursor timer
 601 void BufferView::Pimpl::cursorToggle()
 602 {
 603         if (!buffer_) {
 604                 cursor_timeout.restart();
 605                 return;
 606         }
 607
 608         if (!bv_->theLockingInset()) {
 609                 screen().cursorToggle(bv_);
 610         } else {
 611                 bv_->theLockingInset()->toggleInsetCursor(bv_);
 612         }
 613
 614         cursor_timeout.restart();
 615 }
 616
 617
 618 bool BufferView::Pimpl::available() const
 619 {
 620         if (buffer_ && bv_->text)
 621                 return true;
 622         return false;
 623 }
 624
 625
 626 void BufferView::Pimpl::beforeChange(LyXText * text)
 627 {
 628         toggleSelection();
 629         text->clearSelection();
 630 }
 631
 632
 633 void BufferView::Pimpl::savePosition(unsigned int i)
 634 {
 635         if (i >= saved_positions_num)
 636                 return;
 637         saved_positions[i] = Position(buffer_->fileName(),
 638                                       bv_->text->cursor.par()->id(),
 639                                       bv_->text->cursor.pos());
 640         if (i > 0) {
 641                 ostringstream str;
 642                 str << _("Saved bookmark") << ' ' << i;
 643                 owner_->message(STRCONV(str.str()));
 644         }
 645 }
 646
 647
 648 void BufferView::Pimpl::restorePosition(unsigned int i)
 649 {
 650         if (i >= saved_positions_num)
 651                 return;
 652
 653         string const fname = saved_positions[i].filename;
 654
 655         beforeChange(bv_->text);
 656
 657         if (fname != buffer_->fileName()) {
 658                 Buffer * b = bufferlist.exists(fname) ?
 659                         bufferlist.getBuffer(fname) :
 660                         bufferlist.loadLyXFile(fname); // don't ask, just load it
 661                 if (b != 0) buffer(b);
 662         }
 663
 664         Paragraph * par = buffer_->getParFromID(saved_positions[i].par_id);
 665         if (!par)
 666                 return;
 667
 668         bv_->text->setCursor(bv_, par,
 669                              min(par->size(), saved_positions[i].par_pos));
 670
 671         update(bv_->text, BufferView::SELECT | BufferView::FITCUR);
 672         if (i > 0) {
 673                 ostringstream str;
 674                 str << _("Moved to bookmark") << ' ' << i;
 675                 owner_->message(STRCONV(str.str()));
 676         }
 677 }
 678
 679
 680 bool BufferView::Pimpl::isSavedPosition(unsigned int i)
 681 {
 682         if (i >= saved_positions_num)
 683                 return false;
 684
 685         return !saved_positions[i].filename.empty();
 686 }
 687
 688
 689 void BufferView::Pimpl::switchKeyMap()
 690 {
 691         if (!lyxrc.rtl_support)
 692                 return;
 693
 694         LyXText * text = bv_->getLyXText();
 695         if (text->real_current_font.isRightToLeft()
 696             && !(bv_->theLockingInset()
 697                  && bv_->theLockingInset()->lyxCode() == Inset::ERT_CODE))
 698         {
 699                 if (owner_->getIntl().keymap == Intl::PRIMARY)
 700                         owner_->getIntl().KeyMapSec();
 701         } else {
 702                 if (owner_->getIntl().keymap == Intl::SECONDARY)
 703                         owner_->getIntl().KeyMapPrim();
 704         }
 705 }
 706
 707
 708 void BufferView::Pimpl::insetUnlock()
 709 {
 710         if (bv_->theLockingInset()) {
 711                 bv_->theLockingInset()->insetUnlock(bv_);
 712                 bv_->theLockingInset(0);
 713                 finishUndo();
 714         }
 715 }
 716
 717
 718 void BufferView::Pimpl::showCursor()
 719 {
 720         if (bv_->theLockingInset())
 721                 bv_->theLockingInset()->showInsetCursor(bv_);
 722         else
 723                 screen().showCursor(bv_->text, bv_);
 724 }
 725
 726
 727 void BufferView::Pimpl::hideCursor()
 728 {
 729         if (!bv_->theLockingInset())
 730                 screen().hideCursor();
 731 }
 732
 733
 734 void BufferView::Pimpl::toggleSelection(bool b)
 735 {
 736         if (bv_->theLockingInset())
 737                 bv_->theLockingInset()->toggleSelection(bv_, b);
 738         screen().toggleSelection(bv_->text, bv_, b);
 739 }
 740
 741
 742 void BufferView::Pimpl::toggleToggle()
 743 {
 744         screen().toggleToggle(bv_->text, bv_);
 745 }
 746
 747
 748 void BufferView::Pimpl::center()
 749 {
 750         LyXText * t = bv_->text;
 751
 752         beforeChange(t);
 753         int const half_height = workarea().workHeight() / 2;
 754         int new_y = 0;
 755
 756         if (t->cursor.y() > half_height) {
 757                 new_y = t->cursor.y() - half_height;
 758         }
 759
 760         // FIXME: can we do this w/o calling screen directly ?
 761         // This updates first_y but means the fitCursor() call
 762         // from the update(FITCUR) doesn't realise that we might
 763         // have moved (e.g. from GOTOPARAGRAPH), so doesn't cause
 764         // the scrollbar to be updated as it should, so we have
 765         // to do it manually. Any operation that does a center()
 766         // and also might have moved first_y must make sure to call
 767         // updateScrollbar() currently. Never mind that this is a
 768         // pretty obfuscated way of updating t->first_y
 769         screen().draw(t, bv_, new_y);
 770
 771         update(t, BufferView::SELECT | BufferView::FITCUR);
 772 }
 773
 774
 775 void BufferView::Pimpl::stuffClipboard(string const & stuff) const
 776 {
 777         workarea().putClipboard(stuff);
 778 }
 779
 780
 781 /*
 782  * Dispatch functions for actions which can be valid for BufferView->text
 783  * and/or InsetText->text!!!
 784  */
 785
 786
 787 Inset * BufferView::Pimpl::getInsetByCode(Inset::Code code)
 788 {
 789 #if 0
 790         LyXCursor cursor = bv_->getLyXText()->cursor;
 791         Buffer::inset_iterator it =
 792                 find_if(Buffer::inset_iterator(
 793                         cursor.par(), cursor.pos()),
 794                         buffer_->inset_iterator_end(),
 795                         lyx::compare_memfun(&Inset::lyxCode, code));
 796         return it != buffer_->inset_iterator_end() ? (*it) : 0;
 797 #else
 798         // Ok, this is a little bit too brute force but it
 799         // should work for now. Better infrastructure is comming. (Lgb)
 800
 801         Buffer * b = bv_->buffer();
 802         LyXCursor cursor = bv_->getLyXText()->cursor;
 803
 804         Buffer::inset_iterator beg = b->inset_iterator_begin();
 805         Buffer::inset_iterator end = b->inset_iterator_end();
 806
 807         bool cursor_par_seen = false;
 808
 809         for (; beg != end; ++beg) {
 810                 if (beg.getPar() == cursor.par()) {
 811                         cursor_par_seen = true;
 812                 }
 813                 if (cursor_par_seen) {
 814                         if (beg.getPar() == cursor.par()
 815                             && beg.getPos() >= cursor.pos()) {
 816                                 break;
 817                         } else if (beg.getPar() != cursor.par()) {
 818                                 break;
 819                         }
 820                 }
 821
 822         }
 823         if (beg != end) {
 824                 // Now find the first inset that matches code.
 825                 for (; beg != end; ++beg) {
 826                         if (beg->lyxCode() == code) {
 827                                 return &(*beg);
 828                         }
 829                 }
 830         }
 831         return 0;
 832 #endif
 833 }
 834
 835
 836 void BufferView::Pimpl::MenuInsertLyXFile(string const & filen)
 837 {
 838         string filename = filen;
 839
 840         if (filename.empty()) {
 841                 // Launch a file browser
 842                 string initpath = lyxrc.document_path;
 843
 844                 if (available()) {
 845                         string const trypath = owner_->buffer()->filePath();
 846                         // If directory is writeable, use this as default.
 847                         if (IsDirWriteable(trypath))
 848                                 initpath = trypath;
 849                 }
 850
 851                 FileDialog fileDlg(bv_->owner(),
 852                                    _("Select LyX document to insert"),
 853                         LFUN_FILE_INSERT,
 854                         make_pair(string(_("Documents|#o#O")),
 855                                   string(lyxrc.document_path)),
 856                         make_pair(string(_("Examples|#E#e")),
 857                                   string(AddPath(system_lyxdir, "examples"))));
 858
 859                 FileDialog::Result result =
 860                         fileDlg.open(initpath,
 861                                        _("*.lyx| LyX Documents (*.lyx)"));
 862
 863                 if (result.first == FileDialog::Later)
 864                         return;
 865
 866                 filename = result.second;
 867
 868                 // check selected filename
 869                 if (filename.empty()) {
 870                         owner_->message(_("Canceled."));
 871                         return;
 872                 }
 873         }
 874
 875         // get absolute path of file and add ".lyx" to the filename if
 876         // necessary
 877         filename = FileSearch(string(), filename, "lyx");
 878
 879         string const disp_fn(MakeDisplayPath(filename));
 880
 881         ostringstream s1;
 882         s1 << _("Inserting document") << ' '
 883            << disp_fn << " ...";
 884         owner_->message(STRCONV(s1.str()));
 885         bool const res = bv_->insertLyXFile(filename);
 886         if (res) {
 887                 ostringstream str;
 888                 str << _("Document") << ' ' << disp_fn
 889                     << ' ' << _("inserted.");
 890                 owner_->message(STRCONV(str.str()));
 891         } else {
 892                 ostringstream str;
 893                 str << _("Could not insert document") << ' '
 894                     << disp_fn;
 895                 owner_->message(STRCONV(str.str()));
 896         }
 897 }
 898
 899
 900 bool BufferView::Pimpl::dispatch(FuncRequest const & ev)
 901 {
 902         lyxerr[Debug::ACTION] << "BufferView::Pimpl::Dispatch:"
 903                 << " action[" << ev.action <<"]"
 904                 << " arg[" << ev.argument << "]"
 905                 << " x[" << ev.x << "]"
 906                 << " y[" << ev.y << "]"
 907                 << " button[" << ev.button() << "]"
 908                 << endl;
 909
 910         // e.g. Qt mouse press when no buffer
 911         if (!buffer_)
 912                 return false;
 913
 914         LyXTextClass const & tclass = buffer_->params.getLyXTextClass();
 915
 916         switch (ev.action) {
 917
 918         case LFUN_SCROLL_INSET:
 919                 // this is not handled here as this function is only active
 920                 // if we have a locking_inset and that one is (or contains)
 921                 // a tabular-inset
 922                 break;
 923
 924         case LFUN_INSET_GRAPHICS:
 925         {
 926                 Inset * new_inset = new InsetGraphics;
 927                 if (!insertInset(new_inset)) {
 928                         delete new_inset;
 929                 } else {
 930                         // this is need because you don't use a inset->Edit()
 931                         updateInset(new_inset, true);
 932                         new_inset->edit(bv_);
 933                 }
 934                 break;
 935         }
 936
 937         case LFUN_LAYOUT_COPY:
 938                 bv_->copyEnvironment();
 939                 break;
 940
 941         case LFUN_LAYOUT_PASTE:
 942                 bv_->pasteEnvironment();
 943                 switchKeyMap();
 944                 break;
 945
 946         case LFUN_DEPTH_MIN:
 947                 changeDepth(bv_, bv_->getLyXText(), -1);
 948                 break;
 949
 950         case LFUN_DEPTH_PLUS:
 951                 changeDepth(bv_, bv_->getLyXText(), 1);
 952                 break;
 953
 954         case LFUN_FREE:
 955                 owner_->getDialogs().setUserFreeFont();
 956                 break;
 957
 958         case LFUN_FILE_INSERT:
 959                 MenuInsertLyXFile(ev.argument);
 960                 break;
 961
 962         case LFUN_FILE_INSERT_ASCII_PARA:
 963                 InsertAsciiFile(bv_, ev.argument, true);
 964                 break;
 965
 966         case LFUN_FILE_INSERT_ASCII:
 967                 InsertAsciiFile(bv_, ev.argument, false);
 968                 break;
 969
 970         case LFUN_LANGUAGE:
 971                 lang(bv_, ev.argument);
 972                 switchKeyMap();
 973                 owner_->view_state_changed();
 974                 break;
 975
 976         case LFUN_EMPH:
 977                 emph(bv_);
 978                 owner_->view_state_changed();
 979                 break;
 980
 981         case LFUN_BOLD:
 982                 bold(bv_);
 983                 owner_->view_state_changed();
 984                 break;
 985
 986         case LFUN_NOUN:
 987                 noun(bv_);
 988                 owner_->view_state_changed();
 989                 break;
 990
 991         case LFUN_CODE:
 992                 code(bv_);
 993                 owner_->view_state_changed();
 994                 break;
 995
 996         case LFUN_SANS:
 997                 sans(bv_);
 998                 owner_->view_state_changed();
 999                 break;
1000
1001         case LFUN_ROMAN:
1002                 roman(bv_);
1003                 owner_->view_state_changed();
1004                 break;
1005
1006         case LFUN_DEFAULT:
1007                 styleReset(bv_);
1008                 owner_->view_state_changed();
1009                 break;
1010
1011         case LFUN_UNDERLINE:
1012                 underline(bv_);
1013                 owner_->view_state_changed();
1014                 break;
1015
1016         case LFUN_FONT_SIZE:
1017                 fontSize(bv_, ev.argument);
1018                 owner_->view_state_changed();
1019                 break;
1020
1021         case LFUN_FONT_STATE:
1022                 owner_->getLyXFunc().setMessage(currentState(bv_));
1023                 break;
1024
1025         case LFUN_INSERT_LABEL:
1026                 MenuInsertLabel(bv_, ev.argument);
1027                 break;
1028
1029         case LFUN_REF_INSERT:
1030                 if (ev.argument.empty()) {
1031                         InsetCommandParams p("ref");
1032                         owner_->getDialogs().createRef(p.getAsString());
1033                 } else {
1034                         InsetCommandParams p;
1035                         p.setFromString(ev.argument);
1036
1037                         InsetRef * inset = new InsetRef(p, *buffer_);
1038                         if (!insertInset(inset))
1039                                 delete inset;
1040                         else
1041                                 updateInset(inset, true);
1042                 }
1043                 break;
1044
1045         case LFUN_BOOKMARK_SAVE:
1046                 savePosition(strToUnsignedInt(ev.argument));
1047                 break;
1048
1049         case LFUN_BOOKMARK_GOTO:
1050                 restorePosition(strToUnsignedInt(ev.argument));
1051                 break;
1052
1053         case LFUN_REF_GOTO:
1054         {
1055                 string label = ev.argument;
1056                 if (label.empty()) {
1057                         InsetRef * inset =
1058                                 static_cast<InsetRef*>(getInsetByCode(Inset::REF_CODE));
1059                         if (inset) {
1060                                 label = inset->getContents();
1061                                 savePosition(0);
1062                         }
1063                 }
1064
1065                 if (!label.empty()) {
1066                         //bv_->savePosition(0);
1067                         if (!bv_->gotoLabel(label))
1068                                 Alert::alert(_("Error"),
1069                                            _("Couldn't find this label"),
1070                                            _("in current document."));
1071                 }
1072         }
1073         break;
1074
1075         // --- accented characters ---------------------------
1076
1077         case LFUN_UMLAUT:
1078         case LFUN_CIRCUMFLEX:
1079         case LFUN_GRAVE:
1080         case LFUN_ACUTE:
1081         case LFUN_TILDE:
1082         case LFUN_CEDILLA:
1083         case LFUN_MACRON:
1084         case LFUN_DOT:
1085         case LFUN_UNDERDOT:
1086         case LFUN_UNDERBAR:
1087         case LFUN_CARON:
1088         case LFUN_SPECIAL_CARON:
1089         case LFUN_BREVE:
1090         case LFUN_TIE:
1091         case LFUN_HUNG_UMLAUT:
1092         case LFUN_CIRCLE:
1093         case LFUN_OGONEK:
1094                 if (ev.argument.empty()) {
1095                         // As always...
1096                         owner_->getLyXFunc().handleKeyFunc(ev.action);
1097                 } else {
1098                         owner_->getLyXFunc().handleKeyFunc(ev.action);
1099                         owner_->getIntl().getTransManager()
1100                                 .TranslateAndInsert(ev.argument[0], bv_->getLyXText());
1101                         update(bv_->getLyXText(),
1102                                BufferView::SELECT
1103                                | BufferView::FITCUR
1104                                | BufferView::CHANGE);
1105                 }
1106                 break;
1107
1108         case LFUN_MATH_MACRO:
1109         case LFUN_MATH_DELIM:
1110         case LFUN_INSERT_MATRIX:
1111         case LFUN_INSERT_MATH:
1112         case LFUN_MATH_IMPORT_SELECTION: // Imports LaTeX from the X selection
1113         case LFUN_MATH_DISPLAY:          // Open or create a displayed math inset
1114         case LFUN_MATH_MODE:             // Open or create an inlined math inset
1115         case LFUN_GREEK:                 // Insert a single greek letter
1116                 mathDispatch(FuncRequest(bv_, ev.action, ev.argument));
1117                 break;
1118
1119         case LFUN_CITATION_INSERT:
1120         {
1121                 InsetCommandParams p;
1122                 p.setFromString(ev.argument);
1123
1124                 InsetCitation * inset = new InsetCitation(p);
1125                 if (!insertInset(inset))
1126                         delete inset;
1127                 else {
1128                         inset->setLoadingBuffer(bv_->buffer(), false);
1129                         updateInset(inset, true);
1130                 }
1131
1132         }
1133         break;
1134
1135         case LFUN_INSERT_BIBTEX:
1136         {
1137                 // ale970405+lasgoutt970425
1138                 // The argument can be up to two tokens separated
1139                 // by a space. The first one is the bibstyle.
1140                 string const db = token(ev.argument, ' ', 0);
1141                 string bibstyle = token(ev.argument, ' ', 1);
1142                 if (bibstyle.empty())
1143                         bibstyle = "plain";
1144
1145                 InsetCommandParams p("BibTeX", db, bibstyle);
1146                 InsetBibtex * inset = new InsetBibtex(p);
1147
1148                 if (insertInset(inset)) {
1149                         if (ev.argument.empty())
1150                                 inset->edit(bv_);
1151                 } else
1152                         delete inset;
1153         }
1154         break;
1155
1156         // BibTeX data bases
1157         case LFUN_BIBDB_ADD:
1158         {
1159                 InsetBibtex * inset =
1160                         static_cast<InsetBibtex*>(getInsetByCode(Inset::BIBTEX_CODE));
1161                 if (inset) {
1162                         inset->addDatabase(ev.argument);
1163                 }
1164         }
1165         break;
1166
1167         case LFUN_BIBDB_DEL:
1168         {
1169                 InsetBibtex * inset =
1170                         static_cast<InsetBibtex*>(getInsetByCode(Inset::BIBTEX_CODE));
1171                 if (inset)
1172                         inset->delDatabase(ev.argument);
1173         }
1174         break;
1175
1176         case LFUN_BIBTEX_STYLE:
1177         {
1178                 InsetBibtex * inset =
1179                         static_cast<InsetBibtex*>(getInsetByCode(Inset::BIBTEX_CODE));
1180                 if (inset)
1181                         inset->setOptions(ev.argument);
1182         }
1183         break;
1184
1185         case LFUN_CHILD_INSERT:
1186         {
1187                 InsetInclude::Params p;
1188                 if (!ev.argument.empty())
1189                         p.cparams.setFromString(ev.argument);
1190                 p.masterFilename_ = buffer_->fileName();
1191
1192                 InsetInclude * inset = new InsetInclude(p);
1193                 if (!insertInset(inset))
1194                         delete inset;
1195                 else {
1196                         updateInset(inset, true);
1197                         bv_->owner()->getDialogs().showInclude(inset);
1198                 }
1199         }
1200         break;
1201
1202         case LFUN_FLOAT_LIST:
1203                 if (tclass.floats().typeExist(ev.argument)) {
1204                         Inset * inset = new InsetFloatList(ev.argument);
1205                         if (!insertInset(inset, tclass.defaultLayoutName()))
1206                                 delete inset;
1207                 } else {
1208                         lyxerr << "Non-existent float type: "
1209                                << ev.argument << endl;
1210                 }
1211                 break;
1212
1213         case LFUN_THESAURUS_ENTRY:
1214         {
1215                 string arg = ev.argument;
1216
1217                 if (arg.empty()) {
1218                         arg = bv_->getLyXText()->selectionAsString(buffer_,
1219                                                                    false);
1220
1221                         // FIXME
1222                         if (arg.size() > 100 || arg.empty()) {
1223                                 // Get word or selection
1224                                 bv_->getLyXText()->selectWordWhenUnderCursor(bv_, LyXText::WHOLE_WORD);
1225                                 arg = bv_->getLyXText()->selectionAsString(buffer_, false);
1226                                 // FIXME: where is getLyXText()->unselect(bv_) ?
1227                         }
1228                 }
1229
1230                 bv_->owner()->getDialogs().showThesaurus(arg);
1231         }
1232                 break;
1233
1234         case LFUN_UNKNOWN_ACTION:
1235                 ev.errorMessage(N_("Unknown function!"));
1236                 break;
1237
1238         default:
1239                 return bv_->getLyXText()->dispatch(FuncRequest(ev, bv_));
1240         } // end of switch
1241
1242         return true;
1243 }
1244
1245
1246 bool BufferView::Pimpl::insertInset(Inset * inset, string const & lout)
1247 {
1248         // if we are in a locking inset we should try to insert the
1249         // inset there otherwise this is a illegal function now
1250         if (bv_->theLockingInset()) {
1251                 if (bv_->theLockingInset()->insetAllowed(inset))
1252                         return bv_->theLockingInset()->insertInset(bv_, inset);
1253                 return false;
1254         }
1255
1256         // not quite sure if we want this...
1257         setCursorParUndo(bv_);
1258         freezeUndo();
1259
1260         beforeChange(bv_->text);
1261         if (!lout.empty()) {
1262                 update(bv_->text, BufferView::SELECT|BufferView::FITCUR);
1263                 bv_->text->breakParagraph(bv_);
1264                 update(bv_->text, BufferView::SELECT|BufferView::FITCUR|BufferView::CHANGE);
1265
1266                 if (!bv_->text->cursor.par()->empty()) {
1267                         bv_->text->cursorLeft(bv_);
1268
1269                         bv_->text->breakParagraph(bv_);
1270                         update(bv_->text, BufferView::SELECT|BufferView::FITCUR|BufferView::CHANGE);
1271                 }
1272
1273                 string lres = lout;
1274                 LyXTextClass const & tclass =
1275                         buffer_->params.getLyXTextClass();
1276                 bool hasLayout = tclass.hasLayout(lres);
1277                 string lay = tclass.defaultLayoutName();
1278
1279                 if (hasLayout != false) {
1280                         // layout found
1281                         lay = lres;
1282                 } else {
1283                         // layout not fount using default
1284                         lay = tclass.defaultLayoutName();
1285                 }
1286
1287                 bv_->text->setLayout(bv_, lay);
1288
1289                 bv_->text->setParagraph(bv_, 0, 0,
1290                                    0, 0,
1291                                    VSpace(VSpace::NONE), VSpace(VSpace::NONE),
1292                                    Spacing(),
1293                                    LYX_ALIGN_LAYOUT,
1294                                    string(),
1295                                    0);
1296                 update(bv_->text, BufferView::SELECT|BufferView::FITCUR|BufferView::CHANGE);
1297         }
1298
1299         bv_->text->insertInset(bv_, inset);
1300         update(bv_->text, BufferView::SELECT|BufferView::FITCUR|BufferView::CHANGE);
1301
1302         unFreezeUndo();
1303         return true;
1304 }
1305
1306
1307 void BufferView::Pimpl::updateInset(Inset * inset, bool mark_dirty)
1308 {
1309         if (!inset || !available())
1310                 return;
1311
1312         // first check for locking insets
1313         if (bv_->theLockingInset()) {
1314                 if (bv_->theLockingInset() == inset) {
1315                         if (bv_->text->updateInset(bv_, inset)) {
1316                                 update();
1317                                 if (mark_dirty) {
1318                                         buffer_->markDirty();
1319                                 }
1320                                 updateScrollbar();
1321                                 return;
1322                         }
1323                 } else if (bv_->theLockingInset()->updateInsetInInset(bv_, inset)) {
1324                         if (bv_->text->updateInset(bv_,  bv_->theLockingInset())) {
1325                                 update();
1326                                 if (mark_dirty) {
1327                                         buffer_->markDirty();
1328                                 }
1329                                 updateScrollbar();
1330                                 return;
1331                         }
1332                 }
1333         }
1334
1335         // then check if the inset is a top_level inset (has no owner)
1336         // if yes do the update as always otherwise we have to update the
1337         // toplevel inset where this inset is inside
1338         Inset * tl_inset = inset;
1339         while (tl_inset->owner())
1340                 tl_inset = tl_inset->owner();
1341         hideCursor();
1342         if (tl_inset == inset) {
1343                 update(bv_->text, BufferView::UPDATE);
1344                 if (bv_->text->updateInset(bv_, inset)) {
1345                         if (mark_dirty) {
1346                                 update(bv_->text,
1347                                        BufferView::SELECT
1348                                        | BufferView::FITCUR
1349                                        | BufferView::CHANGE);
1350                         } else {
1351                                 update(bv_->text, SELECT);
1352                         }
1353                         return;
1354                 }
1355         } else if (static_cast<UpdatableInset *>(tl_inset)
1356                            ->updateInsetInInset(bv_, inset))
1357         {
1358                 if (bv_->text->updateInset(bv_, tl_inset)) {
1359                         update();
1360                         updateScrollbar();
1361                 }
1362         }
1363 }