src/text3.C

   1 /* This file is part of
   2  * ======================================================
   3  *
   4  *           LyX, The Document Processor
   5  *
   6  *           Copyright 1995 Matthias Ettrich
   7  *           Copyright 1995-2002 The LyX Team.
   8  *
   9  * ====================================================== */
  10
  11 #include <config.h>
  12
  13 #include "lyxtext.h"
  14 #include "lyxrow.h"
  15 #include "paragraph.h"
  16 #include "BufferView.h"
  17 #include "funcrequest.h"
  18 #include "lyxrc.h"
  19 #include "debug.h"
  20 #include "bufferparams.h"
  21 #include "buffer.h"
  22 #include "ParagraphParameters.h"
  23 #include "gettext.h"
  24 #include "factory.h"
  25 #include "intl.h"
  26 #include "box.h"
  27 #include "language.h"
  28 #include "support/lstrings.h"
  29 #include "frontends/LyXView.h"
  30 #include "frontends/screen.h"
  31 #include "frontends/Dialogs.h"
  32 #include "insets/insetspecialchar.h"
  33 #include "insets/insettext.h"
  34 #include "insets/insetquotes.h"
  35 #include "insets/insetcommand.h"
  36 #include "insets/insetnewline.h"
  37 #include "undo_funcs.h"
  38
  39 #include <ctime>
  40 #include <clocale>
  41
  42 using std::endl;
  43 using std::find;
  44 using std::vector;
  45
  46 extern string current_layout;
  47 extern int bibitemMaxWidth(BufferView *, LyXFont const &);
  48
  49 // the selection possible is needed, that only motion events are
  50 // used, where the bottom press event was on the drawing area too
  51 bool selection_possible = false;
  52
  53
  54 namespace {
  55
  56         void moveCursorUpdate(BufferView * bv, bool selecting)
  57         {
  58                 LyXText * lt = bv->getLyXText();
  59
  60                 if (selecting || lt->selection.mark()) {
  61                         lt->setSelection();
  62                         if (lt->isInInset())
  63                                 bv->updateInset(lt->inset_owner);
  64                         else
  65                                 bv->toggleToggle();
  66                 }
  67                 if (!lt->isInInset()) {
  68                         bv->update(lt, BufferView::SELECT);
  69                         bv->showCursor();
  70                 } else if (bv->text->refreshStatus() != LyXText::REFRESH_NONE) {
  71                         bv->theLockingInset()->hideInsetCursor(bv);
  72                         bv->update(BufferView::SELECT);
  73                         bv->showCursor();
  74                 }
  75
  76                 if (!lt->selection.set())
  77                         bv->haveSelection(false);
  78
  79                 bv->switchKeyMap();
  80         }
  81
  82
  83         void finishChange(BufferView * bv, bool selecting = false)
  84         {
  85                 finishUndo();
  86                 moveCursorUpdate(bv, selecting);
  87                 bv->owner()->view_state_changed();
  88         }
  89
  90         // check if the given co-ordinates are inside an inset at the
  91         // given cursor, if one exists. If so, the inset is returned,
  92         // and the co-ordinates are made relative. Otherwise, 0 is returned.
  93         Inset * checkInset(BufferView * bv, LyXText & text,
  94                 LyXCursor const & cur, int & x, int & y)
  95         {
  96                 lyx::pos_type const pos = cur.pos();
  97                 Paragraph /*const*/ & par = *cur.par();
  98
  99                 if (pos >= par.size() || !par.isInset(pos))
 100                         return 0;
 101
 102                 Inset /*const*/ * inset = par.getInset(pos);
 103
 104                 if (!isEditableInset(inset))
 105                         return 0;
 106
 107                 // get inset dimensions
 108                 lyx::Assert(par.getInset(pos));
 109
 110                 LyXFont const & font = text.getFont(bv->buffer(), &par, pos);
 111
 112                 int const width = inset->width(bv, font);
 113                 int const inset_x = font.isVisibleRightToLeft()
 114                         ? (cur.ix() - width) : cur.ix();
 115
 116                 Box b(
 117                         inset_x + inset->scroll(),
 118                         inset_x + width,
 119                         cur.iy() - inset->ascent(bv, font),
 120                         cur.iy() + inset->descent(bv, font)
 121                 );
 122
 123                 if (!b.contained(x, y)) {
 124                         lyxerr[Debug::GUI] << "Missed inset at x,y "
 125                                            << x << ',' << y
 126                                            << " box " << b << endl;
 127                         return 0;
 128                 }
 129
 130                 text.setCursor(&par, pos, true);
 131
 132                 x -= b.x1;
 133                 // The origin of an inset is on the baseline
 134                 y -= text.cursor.iy();
 135
 136                 return inset;
 137         }
 138
 139 } // anon namespace
 140
 141
 142 Inset * LyXText::checkInsetHit(int & x, int & y)
 143 {
 144         int y_tmp = y + top_y();
 145
 146         LyXCursor cur;
 147         setCursorFromCoordinates(cur, x, y_tmp);
 148
 149         Inset * inset = checkInset(bv(), *this, cur, x, y_tmp);
 150         if (inset) {
 151                 y = y_tmp;
 152                 return inset;
 153         }
 154
 155         // look at previous position
 156         if (cur.pos() == 0)
 157                 return 0;
 158
 159         // move back one
 160         setCursor(cur, cur.par(), cur.pos() - 1, true);
 161
 162         inset = checkInset(bv(), *this, cur, x, y_tmp);
 163         if (inset)
 164                 y = y_tmp;
 165         return inset;
 166 }
 167
 168
 169 bool LyXText::gotoNextInset(vector<Inset::Code> const & codes,
 170                             string const & contents)
 171 {
 172         LyXCursor res = cursor;
 173         Inset * inset;
 174         do {
 175                 if (res.pos() < res.par()->size() - 1) {
 176                         res.pos(res.pos() + 1);
 177                 } else  {
 178                         res.par(res.par()->next());
 179                         res.pos(0);
 180                 }
 181
 182         } while (res.par() &&
 183                  !(res.par()->isInset(res.pos())
 184                    && (inset = res.par()->getInset(res.pos())) != 0
 185                    && find(codes.begin(), codes.end(), inset->lyxCode())
 186                    != codes.end()
 187                    && (contents.empty() ||
 188                        static_cast<InsetCommand *>(
 189                                                         res.par()->getInset(res.pos()))->getContents()
 190                        == contents)));
 191
 192         if (res.par()) {
 193                 setCursor(res.par(), res.pos(), false);
 194                 return true;
 195         }
 196         return false;
 197 }
 198
 199
 200 void LyXText::gotoInset(vector<Inset::Code> const & codes,
 201                                   bool same_content)
 202 {
 203         bv()->hideCursor();
 204         bv()->beforeChange(this);
 205         update();
 206
 207         string contents;
 208         if (same_content && cursor.par()->isInset(cursor.pos())) {
 209                 Inset const * inset = cursor.par()->getInset(cursor.pos());
 210                 if (find(codes.begin(), codes.end(), inset->lyxCode())
 211                     != codes.end())
 212                         contents = static_cast<InsetCommand const *>(inset)->getContents();
 213         }
 214
 215         if (!gotoNextInset(codes, contents)) {
 216                 if (cursor.pos() || cursor.par() != ownerParagraph()) {
 217                         LyXCursor tmp = cursor;
 218                         cursor.par(ownerParagraph());
 219                         cursor.pos(0);
 220                         if (!gotoNextInset(codes, contents)) {
 221                                 cursor = tmp;
 222                                 bv()->owner()->message(_("No more insets"));
 223                         }
 224                 } else {
 225                         bv()->owner()->message(_("No more insets"));
 226                 }
 227         }
 228         update();
 229         selection.cursor = cursor;
 230 }
 231
 232
 233 void LyXText::gotoInset(Inset::Code code, bool same_content)
 234 {
 235         gotoInset(vector<Inset::Code>(1, code), same_content);
 236 }
 237
 238
 239 void LyXText::cursorPrevious()
 240 {
 241         int y = top_y();
 242
 243         if (!cursor.row()->previous()) {
 244                 if (y > 0) {
 245                         int new_y = bv()->text->top_y() - bv()->workHeight();
 246                         bv()->screen().draw(bv()->text, bv(), new_y < 0 ? 0 : new_y);
 247                         bv()->updateScrollbar();
 248                 }
 249                 return;
 250         }
 251
 252         Row * cursorrow = cursor.row();
 253
 254         setCursorFromCoordinates(cursor.x_fix(), y);
 255         finishUndo();
 256
 257         int new_y;
 258         if (cursorrow == bv()->text->cursor.row()) {
 259                 // we have a row which is taller than the workarea. The
 260                 // simplest solution is to move to the previous row instead.
 261                 cursorUp(true);
 262                 return;
 263                 // This is what we used to do, so we wouldn't skip right past
 264                 // tall rows, but it's not working right now.
 265 #if 0
 266                 new_y = bv->text->top_y() - bv->workHeight();
 267 #endif
 268         } else {
 269                 if (inset_owner) {
 270                         new_y = bv()->text->cursor.iy()
 271                                 + bv()->theLockingInset()->insetInInsetY() + y
 272                                 + cursor.row()->height()
 273                                 - bv()->workHeight() + 1;
 274                 } else {
 275                         new_y = cursor.y()
 276                                 - cursor.row()->baseline()
 277                                 + cursor.row()->height()
 278                                 - bv()->workHeight() + 1;
 279                 }
 280         }
 281         bv()->screen().draw(bv()->text, bv(), new_y < 0 ? 0 : new_y);
 282         if (cursor.row()->previous()) {
 283                 LyXCursor cur;
 284                 setCursor(cur, cursor.row()->previous()->par(),
 285                           cursor.row()->previous()->pos(), false);
 286                 if (cur.y() > top_y()) {
 287                         cursorUp(true);
 288                 }
 289         }
 290         bv()->updateScrollbar();
 291 }
 292
 293
 294 void LyXText::cursorNext()
 295 {
 296         int topy = top_y();
 297
 298         if (!cursor.row()->next()) {
 299                 int y = cursor.y() - cursor.row()->baseline() +
 300                         cursor.row()->height();
 301                 if (y > topy + bv()->workHeight()) {
 302                         bv()->screen().draw(bv()->text, bv(), bv()->text->top_y() + bv()->workHeight());
 303                         bv()->updateScrollbar();
 304                 }
 305                 return;
 306         }
 307
 308         int y = topy + bv()->workHeight();
 309         if (inset_owner && !topy) {
 310                 y -= (bv()->text->cursor.iy()
 311                           - bv()->text->top_y()
 312                           + bv()->theLockingInset()->insetInInsetY());
 313         }
 314
 315         getRowNearY(y);
 316
 317         Row * cursorrow = cursor.row();
 318         setCursorFromCoordinates(cursor.x_fix(), y);
 319         // + bv->workHeight());
 320         finishUndo();
 321
 322         int new_y;
 323         if (cursorrow == bv()->text->cursor.row()) {
 324                 // we have a row which is taller than the workarea. The
 325                 // simplest solution is to move to the next row instead.
 326                 cursorDown(true);
 327                 return;
 328                 // This is what we used to do, so we wouldn't skip right past
 329                 // tall rows, but it's not working right now.
 330 #if 0
 331                 new_y = bv->text->top_y() + bv->workHeight();
 332 #endif
 333         } else {
 334                 if (inset_owner) {
 335                         new_y = bv()->text->cursor.iy()
 336                                 + bv()->theLockingInset()->insetInInsetY()
 337                                 + y - cursor.row()->baseline();
 338                 } else {
 339                         new_y =  cursor.y() - cursor.row()->baseline();
 340                 }
 341         }
 342         bv()->screen().draw(bv()->text, bv(), new_y);
 343         if (cursor.row()->next()) {
 344                 LyXCursor cur;
 345                 setCursor(cur, cursor.row()->next()->par(),
 346                                                 cursor.row()->next()->pos(), false);
 347                 if (cur.y() < top_y() + bv()->workHeight()) {
 348                         cursorDown(true);
 349                 }
 350         }
 351         bv()->updateScrollbar();
 352 }
 353
 354
 355 void LyXText::update()
 356 {
 357         bv()->update(this, BufferView::SELECT);
 358 }
 359
 360 namespace {
 361
 362 void specialChar(LyXText * lt, BufferView * bv, InsetSpecialChar::Kind kind)
 363 {
 364         bv->hideCursor();
 365         lt->update();
 366         InsetSpecialChar * new_inset = new InsetSpecialChar(kind);
 367         if (!bv->insertInset(new_inset))
 368                 delete new_inset;
 369         else
 370                 bv->updateInset(new_inset);
 371 }
 372
 373
 374 void doInsertInset(LyXText * lt, FuncRequest const & cmd,
 375                    bool edit, bool pastesel)
 376 {
 377         Inset * inset = createInset(cmd);
 378         BufferView * bv = cmd.view();
 379
 380         if (inset) {
 381                 bool gotsel = false;
 382                 if (lt->selection.set()) {
 383                         lt->cutSelection(true, false);
 384                         gotsel = true;
 385                 }
 386                 if (bv->insertInset(inset)) {
 387                         if (edit)
 388                                 inset->edit(bv);
 389                         if (gotsel && pastesel)
 390                                 bv->owner()->dispatch(FuncRequest(LFUN_PASTESELECTION));
 391                 }
 392                 else
 393                         delete inset;
 394         }
 395 }
 396
 397 }
 398
 399 Inset::RESULT LyXText::dispatch(FuncRequest const & cmd)
 400 {
 401         lyxerr[Debug::ACTION] << "LyXFunc::dispatch: action[" << cmd.action
 402                               <<"] arg[" << cmd.argument << ']' << endl;
 403
 404         BufferView * bv = cmd.view();
 405
 406         switch (cmd.action) {
 407
 408         case LFUN_APPENDIX: {
 409                 Paragraph * par = cursor.par();
 410                 bool start = !par->params().startOfAppendix();
 411
 412                 // ensure that we have only one start_of_appendix in this document
 413                 Paragraph * tmp = ownerParagraph();
 414                 for (; tmp; tmp = tmp->next()) {
 415                         if (tmp->params().startOfAppendix()) {
 416                                 setUndo(bv, Undo::EDIT, tmp, tmp->next());
 417                                 tmp->params().startOfAppendix(false);
 418                                 int tmpy;
 419                                 setHeightOfRow(getRow(tmp, 0, tmpy));
 420                                 break;
 421                         }
 422                 }
 423
 424                 setUndo(bv, Undo::EDIT, par, par->next());
 425                 par->params().startOfAppendix(start);
 426
 427                 // we can set the refreshing parameters now
 428                 updateCounters();
 429                 redoHeightOfParagraph();
 430                 postPaint(0);
 431                 setCursor(cursor.par(), cursor.pos());
 432                 update();
 433                 break;
 434         }
 435
 436         case LFUN_DELETE_WORD_FORWARD:
 437                 bv->beforeChange(this);
 438                 update();
 439                 deleteWordForward();
 440                 update();
 441                 finishChange(bv);
 442                 break;
 443
 444         case LFUN_DELETE_WORD_BACKWARD:
 445                 bv->beforeChange(this);
 446                 update();
 447                 deleteWordBackward();
 448                 update();
 449                 finishChange(bv);
 450                 break;
 451
 452         case LFUN_DELETE_LINE_FORWARD:
 453                 bv->beforeChange(this);
 454                 update();
 455                 deleteLineForward();
 456                 update();
 457                 finishChange(bv);
 458                 break;
 459
 460         case LFUN_SHIFT_TAB:
 461         case LFUN_TAB:
 462                 if (!selection.mark())
 463                         bv->beforeChange(this);
 464                 update();
 465                 cursorTab();
 466                 finishChange(bv);
 467                 break;
 468
 469         case LFUN_WORDRIGHT:
 470                 if (!selection.mark())
 471                         bv->beforeChange(this);
 472                 update();
 473                 if (cursor.par()->isRightToLeftPar(bv->buffer()->params))
 474                         cursorLeftOneWord();
 475                 else
 476                         cursorRightOneWord();
 477                 finishChange(bv);
 478                 break;
 479
 480         case LFUN_WORDLEFT:
 481                 if (!selection.mark())
 482                         bv->beforeChange(this);
 483                 update();
 484                 if (cursor.par()->isRightToLeftPar(bv->buffer()->params))
 485                         cursorRightOneWord();
 486                 else
 487                         cursorLeftOneWord();
 488                 finishChange(bv);
 489                 break;
 490
 491         case LFUN_BEGINNINGBUF:
 492                 if (!selection.mark())
 493                         bv->beforeChange(this);
 494                 update();
 495                 cursorTop();
 496                 finishChange(bv);
 497                 break;
 498
 499         case LFUN_ENDBUF:
 500                 if (selection.mark())
 501                         bv->beforeChange(this);
 502                 update();
 503                 cursorBottom();
 504                 finishChange(bv);
 505                 break;
 506
 507         case LFUN_RIGHTSEL:
 508                 update();
 509                 if (cursor.par()->isRightToLeftPar(bv->buffer()->params))
 510                         cursorLeft(bv);
 511                 else
 512                         cursorRight(bv);
 513                 finishChange(bv, true);
 514                 break;
 515
 516         case LFUN_LEFTSEL:
 517                 update();
 518                 if (cursor.par()->isRightToLeftPar(bv->buffer()->params))
 519                         cursorRight(bv);
 520                 else
 521                         cursorLeft(bv);
 522                 finishChange(bv, true);
 523                 break;
 524
 525         case LFUN_UPSEL:
 526                 update();
 527                 cursorUp(true);
 528                 finishChange(bv, true);
 529                 break;
 530
 531         case LFUN_DOWNSEL:
 532                 update();
 533                 cursorDown(true);
 534                 finishChange(bv, true);
 535                 break;
 536
 537         case LFUN_UP_PARAGRAPHSEL:
 538                 update();
 539                 cursorUpParagraph();
 540                 finishChange(bv, true);
 541                 break;
 542
 543         case LFUN_DOWN_PARAGRAPHSEL:
 544                 update();
 545                 cursorDownParagraph();
 546                 finishChange(bv, true);
 547                 break;
 548
 549         case LFUN_PRIORSEL:
 550                 update();
 551                 cursorPrevious();
 552                 finishChange(bv, true);
 553                 break;
 554
 555         case LFUN_NEXTSEL:
 556                 update();
 557                 cursorNext();
 558                 finishChange(bv, true);
 559                 break;
 560
 561         case LFUN_HOMESEL:
 562                 update();
 563                 cursorHome();
 564                 finishChange(bv, true);
 565                 break;
 566
 567         case LFUN_ENDSEL:
 568                 update();
 569                 cursorEnd();
 570                 finishChange(bv, true);
 571                 break;
 572
 573         case LFUN_WORDRIGHTSEL:
 574                 update();
 575                 if (cursor.par()->isRightToLeftPar(bv->buffer()->params))
 576                         cursorLeftOneWord();
 577                 else
 578                         cursorRightOneWord();
 579                 finishChange(bv, true);
 580                 break;
 581
 582         case LFUN_WORDLEFTSEL:
 583                 update();
 584                 if (cursor.par()->isRightToLeftPar(bv->buffer()->params))
 585                         cursorRightOneWord();
 586                 else
 587                         cursorLeftOneWord();
 588                 finishChange(bv, true);
 589                 break;
 590
 591         case LFUN_WORDSEL: {
 592                 update();
 593                 LyXCursor cur1;
 594                 LyXCursor cur2;
 595                 getWord(cur1, cur2, WHOLE_WORD);
 596                 setCursor(cur1.par(), cur1.pos());
 597                 bv->beforeChange(this);
 598                 setCursor(cur2.par(), cur2.pos());
 599                 finishChange(bv, true);
 600                 break;
 601         }
 602
 603         case LFUN_RIGHT: {
 604                 bool is_rtl = cursor.par()->isRightToLeftPar(bv->buffer()->params);
 605                 if (!selection.mark())
 606                         bv->beforeChange(this);
 607                 update();
 608                 if (is_rtl)
 609                         cursorLeft(false);
 610                 if (cursor.pos() < cursor.par()->size()
 611                     && cursor.par()->isInset(cursor.pos())
 612                     && isHighlyEditableInset(cursor.par()->getInset(cursor.pos()))) {
 613                         Inset * tmpinset = cursor.par()->getInset(cursor.pos());
 614                         cmd.message(tmpinset->editMessage());
 615                         tmpinset->edit(bv, !is_rtl);
 616                         break;
 617                 }
 618                 if (!is_rtl)
 619                         cursorRight(false);
 620                 finishChange(bv);
 621                 break;
 622         }
 623
 624         case LFUN_LEFT: {
 625                 // This is soooo ugly. Isn`t it possible to make
 626                 // it simpler? (Lgb)
 627                 bool const is_rtl = cursor.par()->isRightToLeftPar(bv->buffer()->params);
 628                 if (!selection.mark())
 629                         bv->beforeChange(this);
 630                 update();
 631                 LyXCursor const cur = cursor;
 632                 if (!is_rtl)
 633                         cursorLeft(false);
 634                 if ((is_rtl || cur != cursor) && // only if really moved!
 635                     cursor.pos() < cursor.par()->size() &&
 636                     cursor.par()->isInset(cursor.pos()) &&
 637                     isHighlyEditableInset(cursor.par()->getInset(cursor.pos()))) {
 638                         Inset * tmpinset = cursor.par()->getInset(cursor.pos());
 639                         cmd.message(tmpinset->editMessage());
 640                         tmpinset->edit(bv, is_rtl);
 641                         break;
 642                 }
 643                 if (is_rtl)
 644                         cursorRight(false);
 645                 finishChange(bv);
 646                 break;
 647         }
 648
 649         case LFUN_UP:
 650                 if (!selection.mark())
 651                         bv->beforeChange(this);
 652                 bv->update(this, BufferView::UPDATE);
 653                 cursorUp(bv);
 654                 finishChange(bv);
 655                 break;
 656
 657         case LFUN_DOWN:
 658                 if (!selection.mark())
 659                         bv->beforeChange(this);
 660                 bv->update(this, BufferView::UPDATE);
 661                 cursorDown(bv);
 662                 finishChange(bv);
 663                 break;
 664
 665         case LFUN_UP_PARAGRAPH:
 666                 if (!selection.mark())
 667                         bv->beforeChange(this);
 668                 bv->update(this, BufferView::UPDATE);
 669                 cursorUpParagraph();
 670                 finishChange(bv);
 671                 break;
 672
 673         case LFUN_DOWN_PARAGRAPH:
 674                 if (!selection.mark())
 675                         bv->beforeChange(this);
 676                 bv->update(this, BufferView::UPDATE);
 677                 cursorDownParagraph();
 678                 finishChange(bv, false);
 679                 break;
 680
 681         case LFUN_PRIOR:
 682                 if (!selection.mark())
 683                         bv->beforeChange(this);
 684                 bv->update(this, BufferView::UPDATE);
 685                 cursorPrevious();
 686                 finishChange(bv, false);
 687                 // was:
 688                 // finishUndo();
 689                 // moveCursorUpdate(bv, false, false);
 690                 // owner_->view_state_changed();
 691                 break;
 692
 693         case LFUN_NEXT:
 694                 if (!selection.mark())
 695                         bv->beforeChange(this);
 696                 bv->update(this, BufferView::UPDATE);
 697                 cursorNext();
 698                 finishChange(bv, false);
 699                 break;
 700
 701         case LFUN_HOME:
 702                 if (!selection.mark())
 703                         bv->beforeChange(this);
 704                 update();
 705                 cursorHome();
 706                 finishChange(bv, false);
 707                 break;
 708
 709         case LFUN_END:
 710                 if (!selection.mark())
 711                         bv->beforeChange(this);
 712                 update();
 713                 cursorEnd();
 714                 finishChange(bv, false);
 715                 break;
 716
 717         case LFUN_BREAKLINE: {
 718                 lyx::pos_type body = cursor.par()->beginningOfBody();
 719
 720                 // Not allowed by LaTeX (labels or empty par)
 721                 if (cursor.pos() <= body)
 722                         break;
 723
 724                 bv->beforeChange(this);
 725                 insertInset(new InsetNewline);
 726                 update();
 727                 setCursor(cursor.par(), cursor.pos());
 728                 moveCursorUpdate(bv, false);
 729                 break;
 730         }
 731
 732         case LFUN_DELETE:
 733                 if (!selection.set()) {
 734                         Delete();
 735                         selection.cursor = cursor;
 736                         update();
 737                         // It is possible to make it a lot faster still
 738                         // just comment out the line below...
 739                         bv->showCursor();
 740                 } else {
 741                         update();
 742                         cutSelection(bv, true);
 743                         update();
 744                 }
 745                 moveCursorUpdate(bv, false);
 746                 bv->owner()->view_state_changed();
 747                 bv->switchKeyMap();
 748                 break;
 749
 750         case LFUN_DELETE_SKIP:
 751                 // Reverse the effect of LFUN_BREAKPARAGRAPH_SKIP.
 752                 if (!selection.set()) {
 753                         LyXCursor cur = cursor;
 754                         if (cur.pos() == cur.par()->size()) {
 755                                 cursorRight(bv);
 756                                 cur = cursor;
 757                                 if (cur.pos() == 0
 758                                     && !(cur.par()->params().spaceTop()
 759                                          == VSpace (VSpace::NONE))) {
 760                                         setParagraph(
 761                                                  cur.par()->params().lineTop(),
 762                                                  cur.par()->params().lineBottom(),
 763                                                  cur.par()->params().pagebreakTop(),
 764                                                  cur.par()->params().pagebreakBottom(),
 765                                                  VSpace(VSpace::NONE),
 766                                                  cur.par()->params().spaceBottom(),
 767                                                  cur.par()->params().spacing(),
 768                                                  cur.par()->params().align(),
 769                                                  cur.par()->params().labelWidthString(), 0);
 770                                         cursorLeft(bv);
 771                                         update();
 772                                 } else {
 773                                         cursorLeft(bv);
 774                                         Delete();
 775                                         selection.cursor = cursor;
 776                                 }
 777                         } else {
 778                                 Delete();
 779                                 selection.cursor = cursor;
 780                         }
 781                 } else {
 782                         update();
 783                         cutSelection(bv, true);
 784                 }
 785                 update();
 786                 break;
 787
 788
 789         case LFUN_BACKSPACE:
 790                 if (!selection.set()) {
 791                         if (bv->owner()->getIntl().getTransManager().backspace()) {
 792                                 backspace();
 793                                 selection.cursor = cursor;
 794                                 update();
 795                                 // It is possible to make it a lot faster still
 796                                 // just comment out the line below...
 797                                 bv->showCursor();
 798                         }
 799                 } else {
 800                         update();
 801                         cutSelection(bv, true);
 802                         update();
 803                 }
 804                 bv->owner()->view_state_changed();
 805                 bv->switchKeyMap();
 806                 break;
 807
 808         case LFUN_BACKSPACE_SKIP:
 809                 // Reverse the effect of LFUN_BREAKPARAGRAPH_SKIP.
 810                 if (!selection.set()) {
 811                         LyXCursor cur = cursor;
 812                         if (cur.pos() == 0
 813                             && !(cur.par()->params().spaceTop()
 814                                  == VSpace (VSpace::NONE))) {
 815                                 setParagraph(
 816                                          cur.par()->params().lineTop(),
 817                                          cur.par()->params().lineBottom(),
 818                                          cur.par()->params().pagebreakTop(),
 819                                          cur.par()->params().pagebreakBottom(),
 820                                          VSpace(VSpace::NONE), cur.par()->params().spaceBottom(),
 821                                          cur.par()->params().spacing(),
 822                                          cur.par()->params().align(),
 823                                          cur.par()->params().labelWidthString(), 0);
 824                         } else {
 825                                 backspace();
 826                                 selection.cursor = cur;
 827                         }
 828                 } else {
 829                         update();
 830                         cutSelection(bv, true);
 831                 }
 832                 update();
 833                 break;
 834
 835         case LFUN_BREAKPARAGRAPH:
 836                 bv->beforeChange(this);
 837                 breakParagraph(bv->buffer()->paragraphs, 0);
 838                 update();
 839                 selection.cursor = cursor;
 840                 bv->switchKeyMap();
 841                 bv->owner()->view_state_changed();
 842                 break;
 843
 844         case LFUN_BREAKPARAGRAPHKEEPLAYOUT:
 845                 bv->beforeChange(this);
 846                 breakParagraph(bv->buffer()->paragraphs, 1);
 847                 update();
 848                 selection.cursor = cursor;
 849                 bv->switchKeyMap();
 850                 bv->owner()->view_state_changed();
 851                 break;
 852
 853         case LFUN_BREAKPARAGRAPH_SKIP: {
 854                 // When at the beginning of a paragraph, remove
 855                 // indentation and add a "defskip" at the top.
 856                 // Otherwise, do the same as LFUN_BREAKPARAGRAPH.
 857                 LyXCursor cur = cursor;
 858                 bv->beforeChange(this);
 859                 if (cur.pos() == 0) {
 860                         if (cur.par()->params().spaceTop() == VSpace(VSpace::NONE)) {
 861                                 setParagraph(
 862                                          cur.par()->params().lineTop(),
 863                                          cur.par()->params().lineBottom(),
 864                                          cur.par()->params().pagebreakTop(),
 865                                          cur.par()->params().pagebreakBottom(),
 866                                          VSpace(VSpace::DEFSKIP), cur.par()->params().spaceBottom(),
 867                                          cur.par()->params().spacing(),
 868                                          cur.par()->params().align(),
 869                                          cur.par()->params().labelWidthString(), 1);
 870                         }
 871                 }
 872                 else {
 873                         breakParagraph(bv->buffer()->paragraphs, 0);
 874                 }
 875                 update();
 876                 selection.cursor = cur;
 877                 bv->switchKeyMap();
 878                 bv->owner()->view_state_changed();
 879                 break;
 880         }
 881
 882         case LFUN_PARAGRAPH_SPACING: {
 883                 Paragraph * par = cursor.par();
 884                 Spacing::Space cur_spacing = par->params().spacing().getSpace();
 885                 float cur_value = 1.0;
 886                 if (cur_spacing == Spacing::Other)
 887                         cur_value = par->params().spacing().getValue();
 888
 889                 istringstream is(cmd.argument.c_str());
 890                 string tmp;
 891                 is >> tmp;
 892                 Spacing::Space new_spacing = cur_spacing;
 893                 float new_value = cur_value;
 894                 if (tmp.empty()) {
 895                         lyxerr << "Missing argument to `paragraph-spacing'"
 896                                << endl;
 897                 } else if (tmp == "single") {
 898                         new_spacing = Spacing::Single;
 899                 } else if (tmp == "onehalf") {
 900                         new_spacing = Spacing::Onehalf;
 901                 } else if (tmp == "double") {
 902                         new_spacing = Spacing::Double;
 903                 } else if (tmp == "other") {
 904                         new_spacing = Spacing::Other;
 905                         float tmpval = 0.0;
 906                         is >> tmpval;
 907                         lyxerr << "new_value = " << tmpval << endl;
 908                         if (tmpval != 0.0)
 909                                 new_value = tmpval;
 910                 } else if (tmp == "default") {
 911                         new_spacing = Spacing::Default;
 912                 } else {
 913                         lyxerr << _("Unknown spacing argument: ")
 914                                << cmd.argument << endl;
 915                 }
 916                 if (cur_spacing != new_spacing || cur_value != new_value) {
 917                         par->params().spacing(Spacing(new_spacing, new_value));
 918                         redoParagraph();
 919                         update();
 920                 }
 921                 break;
 922         }
 923
 924         case LFUN_INSET_TOGGLE:
 925                 bv->hideCursor();
 926                 bv->beforeChange(this);
 927                 update();
 928                 toggleInset();
 929                 update();
 930                 bv->switchKeyMap();
 931                 break;
 932
 933         case LFUN_PROTECTEDSPACE:
 934                 if (cursor.par()->layout()->free_spacing) {
 935                         insertChar(' ');
 936                         update();
 937                 } else {
 938                         specialChar(this, bv, InsetSpecialChar::PROTECTED_SEPARATOR);
 939                 }
 940                 moveCursorUpdate(bv, false);
 941                 break;
 942
 943         case LFUN_HYPHENATION:
 944                 specialChar(this, bv, InsetSpecialChar::HYPHENATION);
 945                 break;
 946
 947         case LFUN_LIGATURE_BREAK:
 948                 specialChar(this, bv, InsetSpecialChar::LIGATURE_BREAK);
 949                 break;
 950
 951         case LFUN_LDOTS:
 952                 specialChar(this, bv, InsetSpecialChar::LDOTS);
 953                 break;
 954
 955         case LFUN_END_OF_SENTENCE:
 956                 specialChar(this, bv, InsetSpecialChar::END_OF_SENTENCE);
 957                 break;
 958
 959         case LFUN_MENU_SEPARATOR:
 960                 specialChar(this, bv, InsetSpecialChar::MENU_SEPARATOR);
 961                 break;
 962
 963         case LFUN_MARK_OFF:
 964                 bv->beforeChange(this);
 965                 update();
 966                 selection.cursor = cursor;
 967                 cmd.message(N_("Mark off"));
 968                 break;
 969
 970         case LFUN_MARK_ON:
 971                 bv->beforeChange(this);
 972                 selection.mark(true);
 973                 update();
 974                 selection.cursor = cursor;
 975                 cmd.message(N_("Mark on"));
 976                 break;
 977
 978         case LFUN_SETMARK:
 979                 bv->beforeChange(this);
 980                 if (selection.mark()) {
 981                         update();
 982                         cmd.message(N_("Mark removed"));
 983                 } else {
 984                         selection.mark(true);
 985                         update();
 986                         cmd.message(N_("Mark set"));
 987                 }
 988                 selection.cursor = cursor;
 989                 break;
 990
 991         case LFUN_UPCASE_WORD:
 992                 update();
 993                 changeCase(LyXText::text_uppercase);
 994                 if (inset_owner)
 995                         bv->updateInset(inset_owner);
 996                 update();
 997                 break;
 998
 999         case LFUN_LOWCASE_WORD:
1000                 update();
1001                 changeCase(LyXText::text_lowercase);
1002                 if (inset_owner)
1003                         bv->updateInset(inset_owner);
1004                 update();
1005                 break;
1006
1007         case LFUN_CAPITALIZE_WORD:
1008                 update();
1009                 changeCase(LyXText::text_capitalization);
1010                 if (inset_owner)
1011                         bv->updateInset(inset_owner);
1012                 update();
1013                 break;
1014
1015         case LFUN_TRANSPOSE_CHARS:
1016                 update();
1017                 transposeChars();
1018                 if (inset_owner)
1019                         bv->updateInset(inset_owner);
1020                 update();
1021                 break;
1022
1023         case LFUN_PASTE:
1024                 cmd.message(_("Paste"));
1025                 bv->hideCursor();
1026                 // clear the selection
1027                 bv->toggleSelection();
1028                 clearSelection();
1029                 update();
1030                 pasteSelection();
1031                 clearSelection(); // bug 393
1032                 update();
1033                 bv->switchKeyMap();
1034                 break;
1035
1036         case LFUN_CUT:
1037                 bv->hideCursor();
1038                 update();
1039                 cutSelection(bv, true);
1040                 update();
1041                 cmd.message(_("Cut"));
1042                 break;
1043
1044         case LFUN_COPY:
1045                 copySelection();
1046                 cmd.message(_("Copy"));
1047                 break;
1048
1049         case LFUN_BEGINNINGBUFSEL:
1050                 if (inset_owner)
1051                         return UNDISPATCHED;
1052                 update();
1053                 cursorTop();
1054                 finishChange(bv, true);
1055                 break;
1056
1057         case LFUN_ENDBUFSEL:
1058                 if (inset_owner)
1059                         return UNDISPATCHED;
1060                 update();
1061                 cursorBottom();
1062                 finishChange(bv, true);
1063                 break;
1064
1065         case LFUN_GETXY:
1066                 cmd.message(tostr(cursor.x()) + ' ' + tostr(cursor.y()));
1067                 break;
1068
1069         case LFUN_SETXY: {
1070                 int x = 0;
1071                 int y = 0;
1072                 istringstream is(cmd.argument.c_str());
1073                 is >> x >> y;
1074                 if (!is)
1075                         lyxerr << "SETXY: Could not parse coordinates in '"
1076                                << cmd.argument << std::endl;
1077                 else
1078                         setCursorFromCoordinates(x, y);
1079                 break;
1080         }
1081
1082         case LFUN_GETFONT:
1083                 if (current_font.shape() == LyXFont::ITALIC_SHAPE)
1084                         cmd.message("E");
1085                 else if (current_font.shape() == LyXFont::SMALLCAPS_SHAPE)
1086                         cmd.message("N");
1087                 else
1088                         cmd.message("0");
1089                 break;
1090
1091         case LFUN_GETLAYOUT:
1092                 cmd.message(tostr(cursor.par()->layout()));
1093                 break;
1094
1095         case LFUN_LAYOUT: {
1096                 lyxerr[Debug::INFO] << "LFUN_LAYOUT: (arg) "
1097                   << cmd.argument << endl;
1098
1099                 // This is not the good solution to the empty argument
1100                 // problem, but it will hopefully suffice for 1.2.0.
1101                 // The correct solution would be to augument the
1102                 // function list/array with information about what
1103                 // functions needs arguments and their type.
1104                 if (cmd.argument.empty()) {
1105                         cmd.errorMessage(_("LyX function 'layout' needs an argument."));
1106                         break;
1107                 }
1108
1109                 // Derive layout number from given argument (string)
1110                 // and current buffer's textclass (number)
1111                 LyXTextClass const & tclass = bv->buffer()->params.getLyXTextClass();
1112                 bool hasLayout = tclass.hasLayout(cmd.argument);
1113                 string layout = cmd.argument;
1114
1115                 // If the entry is obsolete, use the new one instead.
1116                 if (hasLayout) {
1117                         string const & obs = tclass[layout]->obsoleted_by();
1118                         if (!obs.empty())
1119                                 layout = obs;
1120                 }
1121
1122                 if (!hasLayout) {
1123                         cmd.errorMessage(string(N_("Layout ")) + cmd.argument +
1124                                 N_(" not known"));
1125                         break;
1126                 }
1127
1128                 bool change_layout = (current_layout != layout);
1129                 if (!change_layout && selection.set() &&
1130                         selection.start.par() != selection.end.par())
1131                 {
1132                         Paragraph * spar = selection.start.par();
1133                         Paragraph * epar = selection.end.par()->next();
1134                         while (spar != epar) {
1135                                 if (spar->layout()->name() != current_layout) {
1136                                         change_layout = true;
1137                                         break;
1138                                 }
1139                                 spar = spar->next();
1140                         }
1141                 }
1142                 if (change_layout) {
1143                         bv->hideCursor();
1144                         current_layout = layout;
1145                         update();
1146                         setLayout(layout);
1147                         bv->owner()->setLayout(layout);
1148                         update();
1149                         bv->switchKeyMap();
1150                 }
1151                 break;
1152         }
1153
1154         case LFUN_PASTESELECTION: {
1155                 if (!bv->buffer())
1156                         break;
1157                 bv->hideCursor();
1158                 // this was originally a beforeChange(bv->text), i.e
1159                 // the outermost LyXText!
1160                 bv->beforeChange(this);
1161                 string const clip = bv->getClipboard();
1162                 if (!clip.empty()) {
1163                         if (cmd.argument == "paragraph")
1164                                 insertStringAsParagraphs(clip);
1165                         else
1166                                 insertStringAsLines(clip);
1167                         clearSelection();
1168                         update();
1169                 }
1170                 break;
1171         }
1172
1173         case LFUN_GOTOERROR:
1174                 gotoInset(Inset::ERROR_CODE, false);
1175                 break;
1176
1177         case LFUN_GOTONOTE:
1178                 gotoInset(Inset::NOTE_CODE, false);
1179                 break;
1180
1181         case LFUN_REFERENCE_GOTO:
1182         {
1183                 vector<Inset::Code> tmp;
1184                 tmp.push_back(Inset::LABEL_CODE);
1185                 tmp.push_back(Inset::REF_CODE);
1186                 gotoInset(tmp, true);
1187                 break;
1188         }
1189
1190         case LFUN_QUOTE: {
1191                 Paragraph const * par = cursor.par();
1192                 lyx::pos_type pos = cursor.pos();
1193                 char c;
1194                 if (!pos)
1195                         c = ' ';
1196                 else if (par->isInset(pos - 1) && par->getInset(pos - 1)->isSpace())
1197                         c = ' ';
1198                 else
1199                         c = par->getChar(pos - 1);
1200
1201                 bv->hideCursor();
1202                 LyXLayout_ptr const & style = par->layout();
1203
1204                 if (style->pass_thru ||
1205                                 par->getFontSettings(bv->buffer()->params,
1206                                          pos).language()->lang() == "hebrew" ||
1207                         (!bv->insertInset(new InsetQuotes(c, bv->buffer()->params))))
1208                         bv->owner()->dispatch(FuncRequest(LFUN_SELFINSERT, "\""));
1209                 break;
1210         }
1211
1212         case LFUN_DATE_INSERT: {
1213                 time_t now_time_t = time(NULL);
1214                 struct tm * now_tm = localtime(&now_time_t);
1215                 setlocale(LC_TIME, "");
1216                 string arg;
1217                 if (!cmd.argument.empty())
1218                         arg = cmd.argument;
1219                 else
1220                         arg = lyxrc.date_insert_format;
1221                 char datetmp[32];
1222                 int const datetmp_len =
1223                         ::strftime(datetmp, 32, arg.c_str(), now_tm);
1224
1225                 for (int i = 0; i < datetmp_len; i++) {
1226                         insertChar(datetmp[i]);
1227                         update();
1228                 }
1229                 selection.cursor = cursor;
1230                 moveCursorUpdate(bv, false);
1231                 break;
1232         }
1233
1234         case LFUN_MOUSE_TRIPLE:
1235                 if (!bv->buffer())
1236                         break;
1237                 if (!isInInset() && bv->theLockingInset())
1238                         break;
1239                 if (cmd.button() == mouse_button::button1) {
1240                         if (!isInInset()) {
1241                                 bv->screen().hideCursor();
1242                                 bv->screen().toggleSelection(this, bv);
1243                         }
1244                         cursorHome();
1245                         selection.cursor = cursor;
1246                         cursorEnd();
1247                         setSelection();
1248                         if (!isInInset())
1249                                 bv->screen().toggleSelection(this, bv, false);
1250                         update();
1251                         bv->haveSelection(selection.set());
1252                 }
1253                 break;
1254
1255         case LFUN_MOUSE_DOUBLE:
1256                 if (!bv->buffer())
1257                         break;
1258                 if (!isInInset() && bv->theLockingInset())
1259                         break;
1260                 if (cmd.button() == mouse_button::button1) {
1261                         if (!isInInset()) {
1262                                 bv->screen().hideCursor();
1263                                 bv->screen().toggleSelection(this, bv);
1264                                 selectWord(LyXText::WHOLE_WORD_STRICT);
1265                                 bv->screen().toggleSelection(this, bv, false);
1266                         } else {
1267                                 selectWord(LyXText::WHOLE_WORD_STRICT);
1268                         }
1269                         update();
1270                         bv->haveSelection(selection.set());
1271                 }
1272                 break;
1273
1274         case LFUN_MOUSE_MOTION:
1275         {
1276                 // Only use motion with button 1
1277                 //if (ev.button() != mouse_button::button1)
1278                 //      return false;
1279
1280                 if (!bv->buffer())
1281                         break;
1282
1283                 // Check for inset locking
1284                 if (bv->theLockingInset()) {
1285                         Inset * tli = bv->theLockingInset();
1286                         LyXCursor cursor = bv->text->cursor;
1287                         LyXFont font = bv->text->getFont(bv->buffer(),
1288                                                                 cursor.par(), cursor.pos());
1289                         int width = tli->width(bv, font);
1290                         int inset_x = font.isVisibleRightToLeft()
1291                                 ? cursor.ix() - width : cursor.ix();
1292                         int start_x = inset_x + tli->scroll();
1293                         FuncRequest cmd1 = cmd;
1294                         cmd1.x = cmd.x - start_x;
1295                         cmd1.y = cmd.y - cursor.iy() + bv->text->top_y();
1296                         tli->localDispatch(cmd1);
1297                         break;
1298                 }
1299
1300                 // The test for not selection possible is needed, that only motion
1301                 // events are used, where the bottom press event was on
1302                 //  the drawing area too
1303                 if (!selection_possible) {
1304                         lyxerr[Debug::ACTION]
1305                                 << "BufferView::Pimpl::Dispatch: no selection possible\n";
1306                         break;
1307                 }
1308
1309                 bv->screen().hideCursor();
1310
1311                 Row * cursorrow = bv->text->cursor.row();
1312                 bv->text->setCursorFromCoordinates(cmd.x, cmd.y + bv->text->top_y());
1313         #if 0
1314                 // sorry for this but I have a strange error that the y value jumps at
1315                 // a certain point. This seems like an error in my xforms library or
1316                 // in some other local environment, but I would like to leave this here
1317                 // for the moment until I can remove this (Jug 20020418)
1318                 if (y_before < bv->text->cursor.y())
1319                         lyxerr << y_before << ':'
1320                                << bv->text->cursor.y() << endl;
1321         #endif
1322                 // This is to allow jumping over large insets
1323                 if (cursorrow == bv->text->cursor.row()) {
1324                         if (cmd.y >= bv->workHeight())
1325                                 bv->text->cursorDown(false);
1326                         else if (cmd.y < 0)
1327                                 bv->text->cursorUp(false);
1328                 }
1329
1330                 // Maybe an empty line was deleted
1331                 if (!bv->text->selection.set())
1332                         bv->update(BufferView::UPDATE);
1333                 bv->text->setSelection();
1334                 bv->screen().toggleToggle(bv->text, bv);
1335                 bv->fitCursor();
1336                 bv->showCursor();
1337                 break;
1338         }
1339
1340         // Single-click on work area
1341         case LFUN_MOUSE_PRESS:
1342         {
1343                 if (!bv->buffer())
1344                         break;
1345
1346                 // ok ok, this is a hack (for xforms)
1347                 // We shouldn't go further down as we really should only do the
1348                 // scrolling and be done with this. Otherwise we may open some
1349                 // dialogs (Jug 20020424).
1350                 if (cmd.button() == mouse_button::button4) {
1351                         bv->scroll(-lyxrc.wheel_jump);
1352                         break;
1353                 }
1354                 if (cmd.button() == mouse_button::button5) {
1355                         bv->scroll(lyxrc.wheel_jump);
1356                         break;
1357                 }
1358
1359                 int x = cmd.x;
1360                 int y = cmd.y;
1361                 Inset * inset_hit = bv->text->checkInsetHit(x, y);
1362
1363                 // Middle button press pastes if we have a selection
1364                 // We do this here as if the selection was inside an inset
1365                 // it could get cleared on the unlocking of the inset so
1366                 // we have to check this first
1367                 bool paste_internally = false;
1368                 if (cmd.button() == mouse_button::button2 && selection.set()) {
1369                         bv->owner()->dispatch(FuncRequest(LFUN_COPY));
1370                         paste_internally = true;
1371                 }
1372
1373                 int const screen_first = bv->text->top_y();
1374
1375                 if (bv->theLockingInset()) {
1376                         // We are in inset locking mode
1377
1378                         // Check whether the inset was hit. If not reset mode,
1379                         // otherwise give the event to the inset
1380                         if (inset_hit == bv->theLockingInset()) {
1381                                 FuncRequest cmd1(bv, LFUN_MOUSE_PRESS, x, y, cmd.button());
1382                                 bv->theLockingInset()->localDispatch(cmd1);
1383                                 break;
1384                         }
1385                         bv->unlockInset(bv->theLockingInset());
1386                 }
1387
1388                 if (!inset_hit)
1389                         selection_possible = true;
1390                 bv->screen().hideCursor();
1391
1392                 // Clear the selection
1393                 bv->screen().toggleSelection(bv->text, bv);
1394                 bv->text->clearSelection();
1395                 bv->text->fullRebreak();
1396                 bv->update();
1397                 bv->updateScrollbar();
1398
1399                 // Single left click in math inset?
1400                 if (isHighlyEditableInset(inset_hit)) {
1401                         // Highly editable inset, like math
1402                         UpdatableInset * inset = static_cast<UpdatableInset *>(inset_hit);
1403                         selection_possible = false;
1404                         bv->owner()->message(inset->editMessage());
1405                         //inset->edit(bv, x, y, cmd.button());
1406                         // We just have to lock the inset before calling a PressEvent on it!
1407                         // we don't need the edit() call here! (Jug20020329)
1408                         if (!bv->lockInset(inset))
1409                                 lyxerr[Debug::INSETS] << "Cannot lock inset" << endl;
1410                         FuncRequest cmd1(bv, LFUN_MOUSE_PRESS, x, y, cmd.button());
1411                         inset->localDispatch(cmd1);
1412                         break;
1413                 }
1414                 // I'm not sure we should continue here if we hit an inset (Jug20020403)
1415
1416                 // Right click on a footnote flag opens float menu
1417                 if (cmd.button() == mouse_button::button3) {
1418                         selection_possible = false;
1419                         break;
1420                 }
1421
1422                 if (!inset_hit) // otherwise it was already set in checkInsetHit(...)
1423                         bv->text->setCursorFromCoordinates(x, y + screen_first);
1424                 finishUndo();
1425                 bv->text->selection.cursor = bv->text->cursor;
1426                 bv->text->cursor.x_fix(bv->text->cursor.x());
1427
1428                 if (bv->fitCursor())
1429                         selection_possible = false;
1430
1431                 // Insert primary selection with middle mouse
1432                 // if there is a local selection in the current buffer,
1433                 // insert this
1434                 if (cmd.button() == mouse_button::button2) {
1435                         if (paste_internally)
1436                                 bv->owner()->dispatch(FuncRequest(LFUN_PASTE));
1437                         else
1438                                 bv->owner()->dispatch(FuncRequest(LFUN_PASTESELECTION, "paragraph"));
1439                         selection_possible = false;
1440                 }
1441                 break;
1442         }
1443
1444         case LFUN_MOUSE_RELEASE:
1445         {
1446                 // do nothing if we used the mouse wheel
1447                 if (!bv->buffer())
1448                         break;
1449
1450                 if (cmd.button() == mouse_button::button4
1451                  || cmd.button() == mouse_button::button5)
1452                         break;
1453
1454                 // If we hit an inset, we have the inset coordinates in these
1455                 // and inset_hit points to the inset.  If we do not hit an
1456                 // inset, inset_hit is 0, and inset_x == x, inset_y == y.
1457                 int x = cmd.x;
1458                 int y = cmd.y;
1459                 Inset * inset_hit = bv->text->checkInsetHit(x, y);
1460
1461                 if (bv->theLockingInset()) {
1462                         // We are in inset locking mode.
1463
1464                         // LyX does a kind of work-area grabbing for insets.
1465                         // Only a ButtonPress FuncRequest outside the inset will
1466                         // force a insetUnlock.
1467                         FuncRequest cmd1(bv, LFUN_MOUSE_RELEASE, x, y, cmd.button());
1468                         bv->theLockingInset()->localDispatch(cmd1);
1469                         break;
1470                 }
1471
1472                 selection_possible = false;
1473
1474                 if (cmd.button() == mouse_button::button2)
1475                         break;
1476
1477                 // finish selection
1478                 if (cmd.button() == mouse_button::button1)
1479                         bv->haveSelection(selection.set());
1480
1481                 bv->switchKeyMap();
1482                 bv->owner()->view_state_changed();
1483                 bv->owner()->updateMenubar();
1484                 bv->owner()->updateToolbar();
1485
1486                 // Did we hit an editable inset?
1487                 if (inset_hit) {
1488                         selection_possible = false;
1489
1490                         // if we reach this point with a selection, it
1491                         // must mean we are currently selecting.
1492                         // But we don't want to open the inset
1493                         // because that is annoying for the user.
1494                         // So just pretend we didn't hit it.
1495                         // this is OK because a "kosher" ButtonRelease
1496                         // will follow a ButtonPress that clears
1497                         // the selection.
1498                         // Note this also fixes selection drawing
1499                         // problems if we end up opening an inset
1500                         if (selection.set())
1501                                 break;
1502
1503                         // CHECK fix this proper in 0.13
1504                         // well, maybe 13.0 !!!!!!!!!
1505
1506                         // Following a ref shouldn't issue
1507                         // a push on the undo-stack
1508                         // anylonger, now that we have
1509                         // keybindings for following
1510                         // references and returning from
1511                         // references.  IMHO though, it
1512                         // should be the inset's own business
1513                         // to push or not push on the undo
1514                         // stack. They don't *have* to
1515                         // alter the document...
1516                         // (Joacim)
1517                         // ...or maybe the SetCursorParUndo()
1518                         // below isn't necessary at all anylonger?
1519                         if (inset_hit->lyxCode() == Inset::REF_CODE)
1520                                 setCursorParUndo(bv);
1521
1522                         bv->owner()->message(inset_hit->editMessage());
1523
1524                         FuncRequest cmd1(bv, LFUN_MOUSE_RELEASE, x, y, cmd.button());
1525                         inset_hit->localDispatch(cmd1);
1526                 }
1527
1528                 break;
1529         }
1530
1531         case LFUN_SELFINSERT: {
1532                 if (cmd.argument.empty())
1533                         break;
1534
1535                 // Automatically delete the currently selected
1536                 // text and replace it with what is being
1537                 // typed in now. Depends on lyxrc settings
1538                 // "auto_region_delete", which defaults to
1539                 // true (on).
1540
1541                 if (lyxrc.auto_region_delete) {
1542                         if (selection.set()) {
1543                                 cutSelection(false, false);
1544                                 update();
1545                         }
1546                         bv->haveSelection(false);
1547                 }
1548
1549                 bv->beforeChange(this);
1550                 LyXFont const old_font(real_current_font);
1551
1552                 string::const_iterator cit = cmd.argument.begin();
1553                 string::const_iterator end = cmd.argument.end();
1554                 for (; cit != end; ++cit)
1555                         bv->owner()->getIntl().getTransManager().
1556                                 TranslateAndInsert(*cit, this);
1557
1558                 update();
1559                 selection.cursor = cursor;
1560                 moveCursorUpdate(bv, false);
1561
1562                 // real_current_font.number can change so we need to
1563                 // update the minibuffer
1564                 if (old_font != real_current_font)
1565                         bv->owner()->view_state_changed();
1566                 break;
1567         }
1568
1569         case LFUN_HTMLURL: {
1570                 InsetCommandParams p("htmlurl");
1571                 string const data = InsetCommandMailer::params2string("url", p);
1572                 bv->owner()->getDialogs().show("url", data, 0);
1573                 break;
1574         }
1575
1576         case LFUN_URL: {
1577                 InsetCommandParams p("url");
1578                 string const data = InsetCommandMailer::params2string("url", p);
1579                 bv->owner()->getDialogs().show("url", data, 0);
1580                 break;
1581         }
1582
1583
1584 #if 0
1585         case LFUN_INSET_LIST:
1586         case LFUN_INSET_THEOREM:
1587         case LFUN_INSET_CAPTION:
1588 #endif
1589         case LFUN_INSERT_NOTE:
1590         case LFUN_INSERT_BIBITEM:
1591         case LFUN_INSET_ERT:
1592         case LFUN_INSET_FLOAT:
1593         case LFUN_INSET_FOOTNOTE:
1594         case LFUN_INSET_MARGINAL:
1595         case LFUN_INSET_MINIPAGE:
1596         case LFUN_INSET_OPTARG:
1597         case LFUN_INSET_WIDE_FLOAT:
1598         case LFUN_INSET_WRAP:
1599         case LFUN_TABULAR_INSERT:
1600         case LFUN_ENVIRONMENT_INSERT:
1601                 // Open the inset, and move the current selection
1602                 // inside it.
1603                 doInsertInset(this, cmd, true, true);
1604                 break;
1605
1606         case LFUN_INDEX_INSERT:
1607                 // Just open the inset
1608                 doInsertInset(this, cmd, true, false);
1609                 break;
1610
1611         case LFUN_INDEX_PRINT:
1612         case LFUN_PARENTINSERT:
1613         case LFUN_TOC_INSERT:
1614         case LFUN_HFILL:
1615                 // do nothing fancy
1616                 doInsertInset(this, cmd, false, false);
1617                 break;
1618
1619         default:
1620                 return UNDISPATCHED;
1621         }
1622
1623         return DISPATCHED;
1624 }