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/insetbib.h"
  35 #include "insets/insetquotes.h"
  36 #include "insets/insetcommand.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(bv);
  62                         if (lt->bv_owner)
  63                                 bv->toggleToggle();
  64                         else
  65                                 bv->updateInset(lt->inset_owner, false);
  66                 }
  67                 if (lt->bv_owner) {
  68                         //if (fitcur)
  69                         //      bv->update(lt, BufferView::SELECT|BufferView::FITCUR);
  70                         //else
  71                         bv->update(lt, BufferView::SELECT|BufferView::FITCUR);
  72                         bv->showCursor();
  73                 } else if (bv->text->status() != LyXText::UNCHANGED) {
  74                         bv->theLockingInset()->hideInsetCursor(bv);
  75                         bv->update(bv->text, BufferView::SELECT|BufferView::FITCUR);
  76                         bv->showCursor();
  77                 }
  78
  79                 if (!lt->selection.set())
  80                         bv->haveSelection(false);
  81
  82                 bv->switchKeyMap();
  83         }
  84
  85
  86         void finishChange(BufferView * bv, bool selecting = false)
  87         {
  88                 finishUndo();
  89                 moveCursorUpdate(bv, selecting);
  90                 bv->owner()->view_state_changed();
  91         }
  92
  93         // check if the given co-ordinates are inside an inset at the
  94         // given cursor, if one exists. If so, the inset is returned,
  95         // and the co-ordinates are made relative. Otherwise, 0 is returned.
  96         Inset * checkInset(BufferView * bv, LyXText const & text,
  97                 LyXCursor const & cur, int & x, int & y)
  98         {
  99                 lyx::pos_type const pos = cur.pos();
 100                 Paragraph /*const*/ & par = *cur.par();
 101
 102                 if (pos >= par.size() || !par.isInset(pos))
 103                         return 0;
 104
 105                 Inset /*const*/ * inset = par.getInset(pos);
 106
 107                 if (!isEditableInset(inset))
 108                         return 0;
 109
 110                 // get inset dimensions
 111                 lyx::Assert(par.getInset(pos));
 112
 113                 LyXFont const & font = text.getFont(bv->buffer(), &par, pos);
 114
 115                 int const width = inset->width(bv, font);
 116                 int const inset_x = font.isVisibleRightToLeft()
 117                         ? (cur.ix() - width) : cur.ix();
 118
 119                 Box b(
 120                         inset_x + inset->scroll(),
 121                         inset_x + width,
 122                         cur.iy() - inset->ascent(bv, font),
 123                         cur.iy() + inset->descent(bv, font)
 124                 );
 125
 126                 if (!b.contained(x, y)) {
 127                         lyxerr[Debug::GUI] << "Missed inset at x,y "
 128                                            << x << ',' << y
 129                                            << " box " << b << endl;
 130                         return 0;
 131                 }
 132
 133                 text.setCursor(bv, &par, pos, true);
 134
 135                 x -= b.x1;
 136                 // The origin of an inset is on the baseline
 137                 y -= text.cursor.iy();
 138
 139                 return inset;
 140         }
 141
 142 } // anon namespace
 143
 144
 145 Inset * LyXText::checkInsetHit(BufferView * bv, int & x, int & y) const
 146 {
 147         int y_tmp = y + first_y;
 148
 149         LyXCursor cur;
 150         setCursorFromCoordinates(bv, cur, x, y_tmp);
 151
 152         Inset * inset = checkInset(bv, *this, cur, x, y_tmp);
 153         if (inset) {
 154                 y = y_tmp;
 155                 return inset;
 156         }
 157
 158         // look at previous position
 159         if (cur.pos() == 0)
 160                 return 0;
 161
 162         // move back one
 163         setCursor(bv, cur, cur.par(), cur.pos() - 1, true);
 164
 165         inset = checkInset(bv, *this, cur, x, y_tmp);
 166         if (inset)
 167                 y = y_tmp;
 168         return inset;
 169 }
 170
 171
 172 bool LyXText::gotoNextInset(BufferView * bv,
 173         vector<Inset::Code> const & codes, string const & contents) const
 174 {
 175         LyXCursor res = cursor;
 176         Inset * inset;
 177         do {
 178                 if (res.pos() < res.par()->size() - 1) {
 179                         res.pos(res.pos() + 1);
 180                 } else  {
 181                         res.par(res.par()->next());
 182                         res.pos(0);
 183                 }
 184
 185         } while (res.par() &&
 186                  !(res.par()->isInset(res.pos())
 187                    && (inset = res.par()->getInset(res.pos())) != 0
 188                    && find(codes.begin(), codes.end(), inset->lyxCode())
 189                    != codes.end()
 190                    && (contents.empty() ||
 191                        static_cast<InsetCommand *>(
 192                                                         res.par()->getInset(res.pos()))->getContents()
 193                        == contents)));
 194
 195         if (res.par()) {
 196                 setCursor(bv, res.par(), res.pos(), false);
 197                 return true;
 198         }
 199         return false;
 200 }
 201
 202
 203 void LyXText::gotoInset(BufferView * bv, vector<Inset::Code> const & codes,
 204                                   bool same_content)
 205 {
 206         bv->hideCursor();
 207         bv->beforeChange(this);
 208         update(bv, false);
 209
 210         string contents;
 211         if (same_content && cursor.par()->isInset(cursor.pos())) {
 212                 Inset const * inset = cursor.par()->getInset(cursor.pos());
 213                 if (find(codes.begin(), codes.end(), inset->lyxCode())
 214                     != codes.end())
 215                         contents = static_cast<InsetCommand const *>(inset)->getContents();
 216         }
 217
 218         if (!gotoNextInset(bv, codes, contents)) {
 219                 if (cursor.pos() || cursor.par() != ownerParagraph()) {
 220                         LyXCursor tmp = cursor;
 221                         cursor.par(ownerParagraph());
 222                         cursor.pos(0);
 223                         if (!gotoNextInset(bv, codes, contents)) {
 224                                 cursor = tmp;
 225                                 bv->owner()->message(_("No more insets"));
 226                         }
 227                 } else {
 228                         bv->owner()->message(_("No more insets"));
 229                 }
 230         }
 231         update(bv, false);
 232         selection.cursor = cursor;
 233 }
 234
 235
 236 void LyXText::gotoInset(BufferView * bv, Inset::Code code, bool same_content)
 237 {
 238         gotoInset(bv, vector<Inset::Code>(1, code), same_content);
 239 }
 240
 241
 242 void LyXText::cursorPrevious(BufferView * bv)
 243 {
 244         if (!cursor.row()->previous()) {
 245                 if (first_y > 0) {
 246                         int new_y = bv->text->first_y - bv->workHeight();
 247                         bv->screen().draw(bv->text, bv, new_y < 0 ? 0 : new_y);
 248                         bv->updateScrollbar();
 249                 }
 250                 return;
 251         }
 252
 253         int y = first_y;
 254         Row * cursorrow = cursor.row();
 255
 256         setCursorFromCoordinates(bv, cursor.x_fix(), y);
 257         finishUndo();
 258
 259         int new_y;
 260         if (cursorrow == bv->text->cursor.row()) {
 261                 // we have a row which is taller than the workarea. The
 262                 // simplest solution is to move to the previous row instead.
 263                 cursorUp(bv, true);
 264                 return;
 265                 // This is what we used to do, so we wouldn't skip right past
 266                 // tall rows, but it's not working right now.
 267 #if 0
 268                 new_y = bv->text->first_y - bv->workHeight();
 269 #endif
 270         } else {
 271                 if (inset_owner) {
 272                         new_y = bv->text->cursor.iy()
 273                                 + bv->theLockingInset()->insetInInsetY() + y
 274                                 + cursor.row()->height()
 275                                 - bv->workHeight() + 1;
 276                 } else {
 277                         new_y = cursor.y()
 278                                 - cursor.row()->baseline()
 279                                 + cursor.row()->height()
 280                                 - bv->workHeight() + 1;
 281                 }
 282         }
 283         bv->screen().draw(bv->text, bv, new_y < 0 ? 0 : new_y);
 284         if (cursor.row()->previous()) {
 285                 LyXCursor cur;
 286                 setCursor(bv, cur, cursor.row()->previous()->par(),
 287                                                 cursor.row()->previous()->pos(), false);
 288                 if (cur.y() > first_y) {
 289                         cursorUp(bv, true);
 290                 }
 291         }
 292         bv->updateScrollbar();
 293 }
 294
 295
 296 void LyXText::cursorNext(BufferView * bv)
 297 {
 298         if (!cursor.row()->next()) {
 299                 int y = cursor.y() - cursor.row()->baseline() +
 300                         cursor.row()->height();
 301                 if (y > int(first_y + bv->workHeight())) {
 302                         bv->screen().draw(bv->text, bv,
 303                                                   bv->text->first_y + bv->workHeight());
 304                         bv->updateScrollbar();
 305                 }
 306                 return;
 307         }
 308
 309         int y = first_y + bv->workHeight();
 310         if (inset_owner && !first_y) {
 311                 y -= (bv->text->cursor.iy()
 312                           - bv->text->first_y
 313                           + bv->theLockingInset()->insetInInsetY());
 314         }
 315
 316         getRowNearY(y);
 317
 318         Row * cursorrow = cursor.row();
 319         setCursorFromCoordinates(bv, cursor.x_fix(), y);
 320         // + bv->workHeight());
 321         finishUndo();
 322
 323         int new_y;
 324         if (cursorrow == bv->text->cursor.row()) {
 325                 // we have a row which is taller than the workarea. The
 326                 // simplest solution is to move to the next row instead.
 327                 cursorDown(bv, true);
 328                 return;
 329                 // This is what we used to do, so we wouldn't skip right past
 330                 // tall rows, but it's not working right now.
 331 #if 0
 332                 new_y = bv->text->first_y + bv->workHeight();
 333 #endif
 334         } else {
 335                 if (inset_owner) {
 336                         new_y = bv->text->cursor.iy()
 337                                 + bv->theLockingInset()->insetInInsetY()
 338                                 + y - cursor.row()->baseline();
 339                 } else {
 340                         new_y =  cursor.y() - cursor.row()->baseline();
 341                 }
 342         }
 343         bv->screen().draw(bv->text, bv, new_y);
 344         if (cursor.row()->next()) {
 345                 LyXCursor cur;
 346                 setCursor(bv, cur, cursor.row()->next()->par(),
 347                                                 cursor.row()->next()->pos(), false);
 348                 if (cur.y() < int(first_y + bv->workHeight())) {
 349                         cursorDown(bv, true);
 350                 }
 351         }
 352         bv->updateScrollbar();
 353 }
 354
 355
 356 void LyXText::update(BufferView * bv, bool changed)
 357 {
 358         BufferView::UpdateCodes c = BufferView::SELECT | BufferView::FITCUR;
 359         if (changed)
 360                 bv->update(this, c | BufferView::CHANGE);
 361         else
 362                 bv->update(this, c);
 363 }
 364
 365
 366 void specialChar(LyXText * lt, BufferView * bv, InsetSpecialChar::Kind kind)
 367 {
 368         bv->hideCursor();
 369         lt->update(bv);
 370         InsetSpecialChar * new_inset = new InsetSpecialChar(kind);
 371         if (!bv->insertInset(new_inset))
 372                 delete new_inset;
 373         else
 374                 bv->updateInset(new_inset, true);
 375 }
 376
 377
 378 Inset::RESULT LyXText::dispatch(FuncRequest const & cmd)
 379 {
 380         lyxerr[Debug::ACTION] << "LyXFunc::dispatch: action[" << cmd.action
 381                               <<"] arg[" << cmd.argument << ']' << endl;
 382
 383         BufferView * bv = cmd.view();
 384
 385         switch (cmd.action) {
 386
 387         case LFUN_APPENDIX: {
 388                 Paragraph * par = cursor.par();
 389                 bool start = !par->params().startOfAppendix();
 390
 391                 // ensure that we have only one start_of_appendix in this document
 392                 Paragraph * tmp = ownerParagraph();
 393                 for (; tmp; tmp = tmp->next()) {
 394                         if (tmp->params().startOfAppendix()) {
 395                                 setUndo(bv, Undo::EDIT, tmp, tmp->next());
 396                                 tmp->params().startOfAppendix(false);
 397                                 break;
 398                         }
 399                 }
 400
 401                 setUndo(bv, Undo::EDIT, par, par->next());
 402                 par->params().startOfAppendix(start);
 403
 404                 // we can set the refreshing parameters now
 405                 status(cmd.view(), LyXText::NEED_MORE_REFRESH);
 406                 refresh_y = 0;
 407                 refresh_row = 0; // not needed for full update
 408                 updateCounters(cmd.view());
 409                 setCursor(cmd.view(), cursor.par(), cursor.pos());
 410                 update(bv);
 411                 break;
 412         }
 413
 414         case LFUN_DELETE_WORD_FORWARD:
 415                 bv->beforeChange(this);
 416                 update(bv, false);
 417                 deleteWordForward(bv);
 418                 update(bv);
 419                 finishChange(bv);
 420                 break;
 421
 422         case LFUN_DELETE_WORD_BACKWARD:
 423                 bv->beforeChange(this);
 424                 update(bv, false);
 425                 deleteWordBackward(bv);
 426                 update(bv, true);
 427                 finishChange(bv);
 428                 break;
 429
 430         case LFUN_DELETE_LINE_FORWARD:
 431                 bv->beforeChange(this);
 432                 update(bv, false);
 433                 deleteLineForward(bv);
 434                 update(bv);
 435                 finishChange(bv);
 436                 break;
 437
 438         case LFUN_SHIFT_TAB:
 439         case LFUN_TAB:
 440                 if (!selection.mark())
 441                         bv->beforeChange(this);
 442                 update(bv, false);
 443                 cursorTab(bv);
 444                 finishChange(bv);
 445                 break;
 446
 447         case LFUN_WORDRIGHT:
 448                 if (!selection.mark())
 449                         bv->beforeChange(this);
 450                 update(bv, false);
 451                 if (cursor.par()->isRightToLeftPar(bv->buffer()->params))
 452                         cursorLeftOneWord(bv);
 453                 else
 454                         cursorRightOneWord(bv);
 455                 finishChange(bv);
 456                 break;
 457
 458         case LFUN_WORDLEFT:
 459                 if (!selection.mark())
 460                         bv->beforeChange(this);
 461                 update(bv, false);
 462                 if (cursor.par()->isRightToLeftPar(bv->buffer()->params))
 463                         cursorRightOneWord(bv);
 464                 else
 465                         cursorLeftOneWord(bv);
 466                 finishChange(bv);
 467                 break;
 468
 469         case LFUN_BEGINNINGBUF:
 470                 if (!selection.mark())
 471                         bv->beforeChange(this);
 472                 update(bv, false);
 473                 cursorTop(bv);
 474                 finishChange(bv);
 475                 break;
 476
 477         case LFUN_ENDBUF:
 478                 if (selection.mark())
 479                         bv->beforeChange(this);
 480                 update(bv, false);
 481                 cursorBottom(bv);
 482                 finishChange(bv);
 483                 break;
 484
 485         case LFUN_RIGHTSEL:
 486                 update(bv, false);
 487                 if (cursor.par()->isRightToLeftPar(bv->buffer()->params))
 488                         cursorLeft(bv);
 489                 else
 490                         cursorRight(bv);
 491                 finishChange(bv, true);
 492                 break;
 493
 494         case LFUN_LEFTSEL:
 495                 update(bv, false);
 496                 if (cursor.par()->isRightToLeftPar(bv->buffer()->params))
 497                         cursorRight(bv);
 498                 else
 499                         cursorLeft(bv);
 500                 finishChange(bv, true);
 501                 break;
 502
 503         case LFUN_UPSEL:
 504                 update(bv, false);
 505                 cursorUp(bv, true);
 506                 finishChange(bv, true);
 507                 break;
 508
 509         case LFUN_DOWNSEL:
 510                 update(bv, false);
 511                 cursorDown(bv, true);
 512                 finishChange(bv, true);
 513                 break;
 514
 515         case LFUN_UP_PARAGRAPHSEL:
 516                 update(bv, false);
 517                 cursorUpParagraph(bv);
 518                 finishChange(bv, true);
 519                 break;
 520
 521         case LFUN_DOWN_PARAGRAPHSEL:
 522                 update(bv, false);
 523                 cursorDownParagraph(bv);
 524                 finishChange(bv, true);
 525                 break;
 526
 527         case LFUN_PRIORSEL:
 528                 update(bv, false);
 529                 cursorPrevious(bv);
 530                 finishChange(bv, true);
 531                 break;
 532
 533         case LFUN_NEXTSEL:
 534                 update(bv, false);
 535                 cursorNext(bv);
 536                 finishChange(bv, true);
 537                 break;
 538
 539         case LFUN_HOMESEL:
 540                 update(bv, false);
 541                 cursorHome(bv);
 542                 finishChange(bv, true);
 543                 break;
 544
 545         case LFUN_ENDSEL:
 546                 update(bv, false);
 547                 cursorEnd(bv);
 548                 finishChange(bv, true);
 549                 break;
 550
 551         case LFUN_WORDRIGHTSEL:
 552                 update(bv, false);
 553                 if (cursor.par()->isRightToLeftPar(bv->buffer()->params))
 554                         cursorLeftOneWord(bv);
 555                 else
 556                         cursorRightOneWord(bv);
 557                 finishChange(bv, true);
 558                 break;
 559
 560         case LFUN_WORDLEFTSEL:
 561                 update(bv, false);
 562                 if (cursor.par()->isRightToLeftPar(bv->buffer()->params))
 563                         cursorRightOneWord(bv);
 564                 else
 565                         cursorLeftOneWord(bv);
 566                 finishChange(bv, true);
 567                 break;
 568
 569         case LFUN_WORDSEL: {
 570                 update(bv, false);
 571                 LyXCursor cur1;
 572                 LyXCursor cur2;
 573                 getWord(cur1, cur2, WHOLE_WORD);
 574                 setCursor(bv, cur1.par(), cur1.pos());
 575                 bv->beforeChange(this);
 576                 setCursor(bv, cur2.par(), cur2.pos());
 577                 finishChange(bv, true);
 578                 break;
 579         }
 580
 581         case LFUN_RIGHT: {
 582                 bool is_rtl = cursor.par()->isRightToLeftPar(bv->buffer()->params);
 583                 if (!selection.mark())
 584                         bv->beforeChange(this);
 585                 update(bv, false);
 586                 if (is_rtl)
 587                         cursorLeft(bv, false);
 588                 if (cursor.pos() < cursor.par()->size()
 589                     && cursor.par()->isInset(cursor.pos())
 590                     && isHighlyEditableInset(cursor.par()->getInset(cursor.pos()))) {
 591                         Inset * tmpinset = cursor.par()->getInset(cursor.pos());
 592                         cmd.message(tmpinset->editMessage());
 593                         tmpinset->edit(bv, !is_rtl);
 594                         break;
 595                 }
 596                 if (!is_rtl)
 597                         cursorRight(bv, false);
 598                 finishChange(bv);
 599                 break;
 600         }
 601
 602         case LFUN_LEFT: {
 603                 // This is soooo ugly. Isn`t it possible to make
 604                 // it simpler? (Lgb)
 605                 bool const is_rtl = cursor.par()->isRightToLeftPar(bv->buffer()->params);
 606                 if (!selection.mark())
 607                         bv->beforeChange(this);
 608                 update(bv, false);
 609                 LyXCursor const cur = cursor;
 610                 if (!is_rtl)
 611                         cursorLeft(bv, false);
 612                 if ((is_rtl || cur != cursor) && // only if really moved!
 613                     cursor.pos() < cursor.par()->size() &&
 614                     cursor.par()->isInset(cursor.pos()) &&
 615                     isHighlyEditableInset(cursor.par()->getInset(cursor.pos()))) {
 616                         Inset * tmpinset = cursor.par()->getInset(cursor.pos());
 617                         cmd.message(tmpinset->editMessage());
 618                         tmpinset->edit(bv, is_rtl);
 619                         break;
 620                 }
 621                 if (is_rtl)
 622                         cursorRight(bv, false);
 623                 finishChange(bv);
 624                 break;
 625         }
 626
 627         case LFUN_UP:
 628                 if (!selection.mark())
 629                         bv->beforeChange(this);
 630                 bv->update(this, BufferView::UPDATE);
 631                 cursorUp(bv);
 632                 finishChange(bv);
 633                 break;
 634
 635         case LFUN_DOWN:
 636                 if (!selection.mark())
 637                         bv->beforeChange(this);
 638                 bv->update(this, BufferView::UPDATE);
 639                 cursorDown(bv);
 640                 finishChange(bv);
 641                 break;
 642
 643         case LFUN_UP_PARAGRAPH:
 644                 if (!selection.mark())
 645                         bv->beforeChange(this);
 646                 bv->update(this, BufferView::UPDATE);
 647                 cursorUpParagraph(bv);
 648                 finishChange(bv);
 649                 break;
 650
 651         case LFUN_DOWN_PARAGRAPH:
 652                 if (!selection.mark())
 653                         bv->beforeChange(this);
 654                 bv->update(this, BufferView::UPDATE);
 655                 cursorDownParagraph(bv);
 656                 finishChange(bv, false);
 657                 break;
 658
 659         case LFUN_PRIOR:
 660                 if (!selection.mark())
 661                         bv->beforeChange(this);
 662                 bv->update(this, BufferView::UPDATE);
 663                 cursorPrevious(bv);
 664                 finishChange(bv, false);
 665                 // was:
 666                 // finishUndo();
 667                 // moveCursorUpdate(bv, false, false);
 668                 // owner_->view_state_changed();
 669                 break;
 670
 671         case LFUN_NEXT:
 672                 if (!selection.mark())
 673                         bv->beforeChange(this);
 674                 bv->update(this, BufferView::UPDATE);
 675                 cursorNext(bv);
 676                 finishChange(bv, false);
 677                 break;
 678
 679         case LFUN_HOME:
 680                 if (!selection.mark())
 681                         bv->beforeChange(this);
 682                 update(bv);
 683                 cursorHome(bv);
 684                 finishChange(bv, false);
 685                 break;
 686
 687         case LFUN_END:
 688                 if (!selection.mark())
 689                         bv->beforeChange(this);
 690                 update(bv);
 691                 cursorEnd(bv);
 692                 finishChange(bv, false);
 693                 break;
 694
 695         case LFUN_BREAKLINE:
 696                 bv->beforeChange(this);
 697                 insertChar(bv, Paragraph::META_NEWLINE);
 698                 update(bv, true);
 699                 setCursor(bv, cursor.par(), cursor.pos());
 700                 moveCursorUpdate(bv, false);
 701                 break;
 702
 703         case LFUN_DELETE:
 704                 if (!selection.set()) {
 705                         Delete(bv);
 706                         selection.cursor = cursor;
 707                         update(bv);
 708                         // It is possible to make it a lot faster still
 709                         // just comment out the line below...
 710                         bv->showCursor();
 711                 } else {
 712                         update(bv, false);
 713                         cutSelection(bv, true);
 714                         update(bv);
 715                 }
 716                 moveCursorUpdate(bv, false);
 717                 bv->owner()->view_state_changed();
 718                 bv->switchKeyMap();
 719                 break;
 720
 721         case LFUN_DELETE_SKIP:
 722                 // Reverse the effect of LFUN_BREAKPARAGRAPH_SKIP.
 723                 if (!selection.set()) {
 724                         LyXCursor cur = cursor;
 725                         if (cur.pos() == cur.par()->size()) {
 726                                 cursorRight(bv);
 727                                 cur = cursor;
 728                                 if (cur.pos() == 0
 729                                     && !(cur.par()->params().spaceTop()
 730                                          == VSpace (VSpace::NONE))) {
 731                                         setParagraph(bv,
 732                                                  cur.par()->params().lineTop(),
 733                                                  cur.par()->params().lineBottom(),
 734                                                  cur.par()->params().pagebreakTop(),
 735                                                  cur.par()->params().pagebreakBottom(),
 736                                                  VSpace(VSpace::NONE),
 737                                                  cur.par()->params().spaceBottom(),
 738                                                  cur.par()->params().spacing(),
 739                                                  cur.par()->params().align(),
 740                                                  cur.par()->params().labelWidthString(), 0);
 741                                         cursorLeft(bv);
 742                                         update(bv);
 743                                 } else {
 744                                         cursorLeft(bv);
 745                                         Delete(bv);
 746                                         selection.cursor = cursor;
 747                                 }
 748                         } else {
 749                                 Delete(bv);
 750                                 selection.cursor = cursor;
 751                         }
 752                 } else {
 753                         update(bv, false);
 754                         cutSelection(bv, true);
 755                 }
 756                 update(bv);
 757                 break;
 758
 759
 760         case LFUN_BACKSPACE:
 761                 if (!selection.set()) {
 762                         if (bv->owner()->getIntl().getTransManager().backspace()) {
 763                                 backspace(bv);
 764                                 selection.cursor = cursor;
 765                                 update(bv);
 766                                 // It is possible to make it a lot faster still
 767                                 // just comment out the line below...
 768                                 bv->showCursor();
 769                         }
 770                 } else {
 771                         update(bv, false);
 772                         cutSelection(bv, true);
 773                         update(bv);
 774                 }
 775                 bv->owner()->view_state_changed();
 776                 bv->switchKeyMap();
 777                 break;
 778
 779         case LFUN_BACKSPACE_SKIP:
 780                 // Reverse the effect of LFUN_BREAKPARAGRAPH_SKIP.
 781                 if (!selection.set()) {
 782                         LyXCursor cur = cursor;
 783                         if (cur.pos() == 0
 784                             && !(cur.par()->params().spaceTop()
 785                                  == VSpace (VSpace::NONE))) {
 786                                 setParagraph(bv,
 787                                          cur.par()->params().lineTop(),
 788                                          cur.par()->params().lineBottom(),
 789                                          cur.par()->params().pagebreakTop(),
 790                                          cur.par()->params().pagebreakBottom(),
 791                                          VSpace(VSpace::NONE), cur.par()->params().spaceBottom(),
 792                                          cur.par()->params().spacing(),
 793                                          cur.par()->params().align(),
 794                                          cur.par()->params().labelWidthString(), 0);
 795                         } else {
 796                                 backspace(bv);
 797                                 selection.cursor = cur;
 798                         }
 799                 } else {
 800                         update(bv, false);
 801                         cutSelection(bv, true);
 802                 }
 803                 update(bv);
 804                 break;
 805
 806         case LFUN_BREAKPARAGRAPH:
 807                 bv->beforeChange(this);
 808                 breakParagraph(bv, 0);
 809                 update(bv);
 810                 selection.cursor = cursor;
 811                 bv->switchKeyMap();
 812                 bv->owner()->view_state_changed();
 813                 break;
 814
 815         case LFUN_BREAKPARAGRAPHKEEPLAYOUT:
 816                 bv->beforeChange(this);
 817                 breakParagraph(bv, 1);
 818                 update(bv);
 819                 selection.cursor = cursor;
 820                 bv->switchKeyMap();
 821                 bv->owner()->view_state_changed();
 822                 break;
 823
 824         case LFUN_BREAKPARAGRAPH_SKIP: {
 825                 // When at the beginning of a paragraph, remove
 826                 // indentation and add a "defskip" at the top.
 827                 // Otherwise, do the same as LFUN_BREAKPARAGRAPH.
 828                 LyXCursor cur = cursor;
 829                 bv->beforeChange(this);
 830                 if (cur.pos() == 0) {
 831                         if (cur.par()->params().spaceTop() == VSpace(VSpace::NONE)) {
 832                                 setParagraph(bv,
 833                                          cur.par()->params().lineTop(),
 834                                          cur.par()->params().lineBottom(),
 835                                          cur.par()->params().pagebreakTop(),
 836                                          cur.par()->params().pagebreakBottom(),
 837                                          VSpace(VSpace::DEFSKIP), cur.par()->params().spaceBottom(),
 838                                          cur.par()->params().spacing(),
 839                                          cur.par()->params().align(),
 840                                          cur.par()->params().labelWidthString(), 1);
 841                                 //update(bv);
 842                         }
 843                 }
 844                 else {
 845                         breakParagraph(bv, 0);
 846                         //update(bv);
 847                 }
 848                 update(bv);
 849                 selection.cursor = cur;
 850                 bv->switchKeyMap();
 851                 bv->owner()->view_state_changed();
 852                 break;
 853         }
 854
 855         case LFUN_PARAGRAPH_SPACING: {
 856                 Paragraph * par = cursor.par();
 857                 Spacing::Space cur_spacing = par->params().spacing().getSpace();
 858                 float cur_value = 1.0;
 859                 if (cur_spacing == Spacing::Other)
 860                         cur_value = par->params().spacing().getValue();
 861
 862                 istringstream is(cmd.argument.c_str());
 863                 string tmp;
 864                 is >> tmp;
 865                 Spacing::Space new_spacing = cur_spacing;
 866                 float new_value = cur_value;
 867                 if (tmp.empty()) {
 868                         lyxerr << "Missing argument to `paragraph-spacing'"
 869                                << endl;
 870                 } else if (tmp == "single") {
 871                         new_spacing = Spacing::Single;
 872                 } else if (tmp == "onehalf") {
 873                         new_spacing = Spacing::Onehalf;
 874                 } else if (tmp == "double") {
 875                         new_spacing = Spacing::Double;
 876                 } else if (tmp == "other") {
 877                         new_spacing = Spacing::Other;
 878                         float tmpval = 0.0;
 879                         is >> tmpval;
 880                         lyxerr << "new_value = " << tmpval << endl;
 881                         if (tmpval != 0.0)
 882                                 new_value = tmpval;
 883                 } else if (tmp == "default") {
 884                         new_spacing = Spacing::Default;
 885                 } else {
 886                         lyxerr << _("Unknown spacing argument: ")
 887                                << cmd.argument << endl;
 888                 }
 889                 if (cur_spacing != new_spacing || cur_value != new_value) {
 890                         par->params().spacing(Spacing(new_spacing, new_value));
 891                         redoParagraph(bv);
 892                         update(bv);
 893                 }
 894                 break;
 895         }
 896
 897         case LFUN_INSET_TOGGLE:
 898                 bv->hideCursor();
 899                 bv->beforeChange(this);
 900                 update(bv, false);
 901                 toggleInset(bv);
 902                 update(bv, false);
 903                 bv->switchKeyMap();
 904                 break;
 905
 906         case LFUN_PROTECTEDSPACE:
 907                 if (cursor.par()->layout()->free_spacing) {
 908                         insertChar(bv, ' ');
 909                         update(bv);
 910                 } else {
 911                         specialChar(this, bv, InsetSpecialChar::PROTECTED_SEPARATOR);
 912                 }
 913                 moveCursorUpdate(bv, false);
 914                 break;
 915
 916         case LFUN_HYPHENATION:
 917                 specialChar(this, bv, InsetSpecialChar::HYPHENATION);
 918                 break;
 919
 920         case LFUN_LIGATURE_BREAK:
 921                 specialChar(this, bv, InsetSpecialChar::LIGATURE_BREAK);
 922                 break;
 923
 924         case LFUN_LDOTS:
 925                 specialChar(this, bv, InsetSpecialChar::LDOTS);
 926                 break;
 927
 928         case LFUN_HFILL:
 929                 bv->hideCursor();
 930                 update(bv, false);
 931                 insertChar(bv, Paragraph::META_HFILL);
 932                 update(bv);
 933                 break;
 934
 935         case LFUN_END_OF_SENTENCE:
 936                 specialChar(this, bv, InsetSpecialChar::END_OF_SENTENCE);
 937                 break;
 938
 939         case LFUN_MENU_SEPARATOR:
 940                 specialChar(this, bv, InsetSpecialChar::MENU_SEPARATOR);
 941                 break;
 942
 943         case LFUN_MARK_OFF:
 944                 bv->beforeChange(this);
 945                 update(bv, false);
 946                 selection.cursor = cursor;
 947                 cmd.message(N_("Mark off"));
 948                 break;
 949
 950         case LFUN_MARK_ON:
 951                 bv->beforeChange(this);
 952                 selection.mark(true);
 953                 update(bv, false);
 954                 selection.cursor = cursor;
 955                 cmd.message(N_("Mark on"));
 956                 break;
 957
 958         case LFUN_SETMARK:
 959                 bv->beforeChange(this);
 960                 if (selection.mark()) {
 961                         update(bv);
 962                         cmd.message(N_("Mark removed"));
 963                 } else {
 964                         selection.mark(true);
 965                         update(bv);
 966                         cmd.message(N_("Mark set"));
 967                 }
 968                 selection.cursor = cursor;
 969                 break;
 970
 971         case LFUN_UPCASE_WORD:
 972                 update(bv, false);
 973                 changeCase(bv, LyXText::text_uppercase);
 974                 if (inset_owner)
 975                         bv->updateInset(inset_owner, true);
 976                 update(bv);
 977                 break;
 978
 979         case LFUN_LOWCASE_WORD:
 980                 update(bv, false);
 981                 changeCase(bv, LyXText::text_lowercase);
 982                 if (inset_owner)
 983                         bv->updateInset(inset_owner, true);
 984                 update(bv);
 985                 break;
 986
 987         case LFUN_CAPITALIZE_WORD:
 988                 update(bv, false);
 989                 changeCase(bv, LyXText::text_capitalization);
 990                 if (inset_owner)
 991                         bv->updateInset(inset_owner, true);
 992                 update(bv);
 993                 break;
 994
 995         case LFUN_TRANSPOSE_CHARS:
 996                 update(bv, false);
 997                 transposeChars(*bv);
 998                 if (inset_owner)
 999                         bv->updateInset(inset_owner, true);
1000                 update(bv);
1001                 break;
1002
1003         case LFUN_PASTE:
1004                 cmd.message(_("Paste"));
1005                 bv->hideCursor();
1006                 // clear the selection
1007                 bv->toggleSelection();
1008                 clearSelection();
1009                 update(bv, false);
1010                 pasteSelection(bv);
1011                 clearSelection(); // bug 393
1012                 update(bv, false);
1013                 update(bv);
1014                 bv->switchKeyMap();
1015                 break;
1016
1017         case LFUN_CUT:
1018                 bv->hideCursor();
1019                 update(bv, false);
1020                 cutSelection(bv, true);
1021                 update(bv);
1022                 cmd.message(_("Cut"));
1023                 break;
1024
1025         case LFUN_COPY:
1026                 copySelection(bv);
1027                 cmd.message(_("Copy"));
1028                 break;
1029
1030         case LFUN_BEGINNINGBUFSEL:
1031                 if (inset_owner)
1032                         return Inset::UNDISPATCHED;
1033                 update(bv, false);
1034                 cursorTop(bv);
1035                 finishChange(bv, true);
1036                 break;
1037
1038         case LFUN_ENDBUFSEL:
1039                 if (inset_owner)
1040                         return Inset::UNDISPATCHED;
1041                 update(bv, false);
1042                 cursorBottom(bv);
1043                 finishChange(bv, true);
1044                 break;
1045
1046         case LFUN_GETXY:
1047                 cmd.message(tostr(cursor.x()) + ' ' + tostr(cursor.y()));
1048                 break;
1049
1050         case LFUN_SETXY: {
1051                 int x = 0;
1052                 int y = 0;
1053                 istringstream is(cmd.argument.c_str());
1054                 is >> x >> y;
1055                 if (!is)
1056                         lyxerr << "SETXY: Could not parse coordinates in '"
1057                                << cmd.argument << std::endl;
1058                 else
1059                         setCursorFromCoordinates(bv, x, y);
1060                 break;
1061         }
1062
1063         case LFUN_GETFONT:
1064                 if (current_font.shape() == LyXFont::ITALIC_SHAPE)
1065                         cmd.message("E");
1066                 else if (current_font.shape() == LyXFont::SMALLCAPS_SHAPE)
1067                         cmd.message("N");
1068                 else
1069                         cmd.message("0");
1070                 break;
1071
1072         case LFUN_GETLAYOUT:
1073                 cmd.message(tostr(cursor.par()->layout()));
1074                 break;
1075
1076         case LFUN_LAYOUT: {
1077                 lyxerr[Debug::INFO] << "LFUN_LAYOUT: (arg) "
1078                   << cmd.argument << endl;
1079
1080                 // This is not the good solution to the empty argument
1081                 // problem, but it will hopefully suffice for 1.2.0.
1082                 // The correct solution would be to augument the
1083                 // function list/array with information about what
1084                 // functions needs arguments and their type.
1085                 if (cmd.argument.empty()) {
1086                         cmd.errorMessage(_("LyX function 'layout' needs an argument."));
1087                         break;
1088                 }
1089
1090                 // Derive layout number from given argument (string)
1091                 // and current buffer's textclass (number)
1092                 LyXTextClass const & tclass = bv->buffer()->params.getLyXTextClass();
1093                 bool hasLayout = tclass.hasLayout(cmd.argument);
1094                 string layout = cmd.argument;
1095
1096                 // If the entry is obsolete, use the new one instead.
1097                 if (hasLayout) {
1098                         string const & obs = tclass[layout]->obsoleted_by();
1099                         if (!obs.empty())
1100                                 layout = obs;
1101                 }
1102
1103                 if (!hasLayout) {
1104                         cmd.errorMessage(string(N_("Layout ")) + cmd.argument +
1105                                 N_(" not known"));
1106                         break;
1107                 }
1108
1109                 bool change_layout = (current_layout != layout);
1110                 if (!change_layout && selection.set() &&
1111                         selection.start.par() != selection.end.par())
1112                 {
1113                         Paragraph * spar = selection.start.par();
1114                         Paragraph * epar = selection.end.par()->next();
1115                         while (spar != epar) {
1116                                 if (spar->layout()->name() != current_layout) {
1117                                         change_layout = true;
1118                                         break;
1119                                 }
1120                                 spar = spar->next();
1121                         }
1122                 }
1123                 if (change_layout) {
1124                         bv->hideCursor();
1125                         current_layout = layout;
1126                         update(bv, false);
1127                         setLayout(bv, layout);
1128                         bv->owner()->setLayout(layout);
1129                         update(bv);
1130                         bv->switchKeyMap();
1131                 }
1132                 break;
1133         }
1134
1135         case LFUN_PASTESELECTION: {
1136                 if (!bv->buffer())
1137                         break;
1138                 bv->hideCursor();
1139                 // this was originally a beforeChange(bv->text), i.e
1140                 // the outermost LyXText!
1141                 bv->beforeChange(this);
1142                 string const clip = bv->getClipboard();
1143                 if (!clip.empty()) {
1144                         if (cmd.argument == "paragraph")
1145                                 insertStringAsParagraphs(bv, clip);
1146                         else
1147                                 insertStringAsLines(bv, clip);
1148                         clearSelection();
1149                         update(bv);
1150                 }
1151                 break;
1152         }
1153
1154         case LFUN_GOTOERROR:
1155                 gotoInset(bv, Inset::ERROR_CODE, false);
1156                 break;
1157
1158         case LFUN_GOTONOTE:
1159                 gotoInset(bv, Inset::NOTE_CODE, false);
1160                 break;
1161
1162         case LFUN_REFERENCE_GOTO:
1163         {
1164                 vector<Inset::Code> tmp;
1165                 tmp.push_back(Inset::LABEL_CODE);
1166                 tmp.push_back(Inset::REF_CODE);
1167                 gotoInset(bv, tmp, true);
1168                 break;
1169         }
1170
1171         case LFUN_QUOTE: {
1172                 Paragraph const * par = cursor.par();
1173                 lyx::pos_type pos = cursor.pos();
1174                 char c;
1175                 if (!pos)
1176                         c = ' ';
1177                 else if (par->isInset(pos - 1) && par->getInset(pos - 1)->isSpace())
1178                         c = ' ';
1179                 else
1180                         c = par->getChar(pos - 1);
1181
1182                 bv->hideCursor();
1183                 LyXLayout_ptr const & style = par->layout();
1184
1185                 if (style->pass_thru ||
1186                                 par->getFontSettings(bv->buffer()->params,
1187                                          pos).language()->lang() == "hebrew" ||
1188                         (!bv->insertInset(new InsetQuotes(c, bv->buffer()->params))))
1189                         bv->owner()->dispatch(FuncRequest(LFUN_SELFINSERT, "\""));
1190                 break;
1191         }
1192
1193         case LFUN_DATE_INSERT: {
1194                 time_t now_time_t = time(NULL);
1195                 struct tm * now_tm = localtime(&now_time_t);
1196                 setlocale(LC_TIME, "");
1197                 string arg;
1198                 if (!cmd.argument.empty())
1199                         arg = cmd.argument;
1200                 else
1201                         arg = lyxrc.date_insert_format;
1202                 char datetmp[32];
1203                 int const datetmp_len =
1204                         ::strftime(datetmp, 32, arg.c_str(), now_tm);
1205
1206                 for (int i = 0; i < datetmp_len; i++) {
1207                         insertChar(bv, datetmp[i]);
1208                         update(bv, true);
1209                 }
1210                 selection.cursor = cursor;
1211                 moveCursorUpdate(bv, false);
1212                 break;
1213         }
1214
1215         case LFUN_MOUSE_TRIPLE:
1216                 if (!bv->buffer())
1217                         break;
1218                 if (bv_owner && bv->theLockingInset())
1219                         break;
1220                 if (cmd.button() == mouse_button::button1) {
1221                         if (bv_owner) {
1222                                 bv->screen().hideCursor();
1223                                 bv->screen().toggleSelection(this, bv);
1224                         }
1225                         cursorHome(bv);
1226                         selection.cursor = cursor;
1227                         cursorEnd(bv);
1228                         setSelection(bv);
1229                         if (bv_owner)
1230                                 bv->screen().toggleSelection(this, bv, false);
1231                         update(bv, false);
1232                         bv->haveSelection(selection.set());
1233                 }
1234                 break;
1235
1236         case LFUN_MOUSE_DOUBLE:
1237                 if (!bv->buffer())
1238                         break;
1239                 if (bv_owner && bv->theLockingInset())
1240                         break;
1241                 if (cmd.button() == mouse_button::button1) {
1242                         if (bv_owner) {
1243                                 bv->screen().hideCursor();
1244                                 bv->screen().toggleSelection(this, bv);
1245                                 selectWord(bv, LyXText::WHOLE_WORD_STRICT);
1246                                 bv->screen().toggleSelection(this, bv, false);
1247                         } else {
1248                                 selectWord(bv, LyXText::WHOLE_WORD_STRICT);
1249                         }
1250                         update(bv, false);
1251                         bv->haveSelection(selection.set());
1252                 }
1253                 break;
1254
1255         case LFUN_MOUSE_MOTION:
1256         {
1257                 // Only use motion with button 1
1258                 //if (ev.button() != mouse_button::button1)
1259                 //      return false;
1260
1261                 if (!bv->buffer())
1262                         break;
1263
1264                 // Check for inset locking
1265                 if (bv->theLockingInset()) {
1266                         Inset * tli = bv->theLockingInset();
1267                         LyXCursor cursor = bv->text->cursor;
1268                         LyXFont font = bv->text->getFont(bv->buffer(),
1269                                                                 cursor.par(), cursor.pos());
1270                         int width = tli->width(bv, font);
1271                         int inset_x = font.isVisibleRightToLeft()
1272                                 ? cursor.ix() - width : cursor.ix();
1273                         int start_x = inset_x + tli->scroll();
1274                         FuncRequest cmd1 = cmd;
1275                         cmd1.x = cmd.x - start_x;
1276                         cmd1.y = cmd.y - cursor.iy() + bv->text->first_y;
1277                         tli->localDispatch(cmd1);
1278                         break;
1279                 }
1280
1281                 // The test for not selection possible is needed, that only motion
1282                 // events are used, where the bottom press event was on
1283                 //  the drawing area too
1284                 if (!selection_possible) {
1285                         lyxerr[Debug::ACTION]
1286                                 << "BufferView::Pimpl::Dispatch: no selection possible\n";
1287                         break;
1288                 }
1289
1290                 bv->screen().hideCursor();
1291
1292                 Row * cursorrow = bv->text->cursor.row();
1293                 bv->text->setCursorFromCoordinates(bv, cmd.x, cmd.y + bv->text->first_y);
1294         #if 0
1295                 // sorry for this but I have a strange error that the y value jumps at
1296                 // a certain point. This seems like an error in my xforms library or
1297                 // in some other local environment, but I would like to leave this here
1298                 // for the moment until I can remove this (Jug 20020418)
1299                 if (y_before < bv->text->cursor.y())
1300                         lyxerr << y_before << ':'
1301                                << bv->text->cursor.y() << endl;
1302         #endif
1303                 // This is to allow jumping over large insets
1304                 if (cursorrow == bv->text->cursor.row()) {
1305                         if (cmd.y >= int(bv->workHeight()))
1306                                 bv->text->cursorDown(bv, false);
1307                         else if (cmd.y < 0)
1308                                 bv->text->cursorUp(bv, false);
1309                 }
1310
1311                 // Maybe an empty line was deleted
1312                 if (!bv->text->selection.set())
1313                         bv->update(bv->text, BufferView::UPDATE);
1314                 bv->text->setSelection(bv);
1315                 bv->screen().toggleToggle(bv->text, bv);
1316                 bv->fitCursor();
1317                 bv->showCursor();
1318                 break;
1319         }
1320
1321         // Single-click on work area
1322         case LFUN_MOUSE_PRESS:
1323         {
1324                 if (!bv->buffer())
1325                         break;
1326
1327                 // ok ok, this is a hack (for xforms)
1328                 // We shouldn't go further down as we really should only do the
1329                 // scrolling and be done with this. Otherwise we may open some
1330                 // dialogs (Jug 20020424).
1331                 if (cmd.button() == mouse_button::button4) {
1332                         bv->scroll(-lyxrc.wheel_jump);
1333                         break;
1334                 }
1335                 if (cmd.button() == mouse_button::button5) {
1336                         bv->scroll(lyxrc.wheel_jump);
1337                         break;
1338                 }
1339
1340                 int x = cmd.x;
1341                 int y = cmd.y;
1342                 Inset * inset_hit = bv->text->checkInsetHit(bv, x, y);
1343
1344                 // Middle button press pastes if we have a selection
1345                 // We do this here as if the selection was inside an inset
1346                 // it could get cleared on the unlocking of the inset so
1347                 // we have to check this first
1348                 bool paste_internally = false;
1349                 if (cmd.button() == mouse_button::button2 && selection.set()) {
1350                         bv->owner()->dispatch(FuncRequest(LFUN_COPY));
1351                         paste_internally = true;
1352                 }
1353
1354                 int const screen_first = bv->text->first_y;
1355
1356                 if (bv->theLockingInset()) {
1357                         // We are in inset locking mode
1358
1359                         // Check whether the inset was hit. If not reset mode,
1360                         // otherwise give the event to the inset
1361                         if (inset_hit == bv->theLockingInset()) {
1362                                 FuncRequest cmd1(bv, LFUN_MOUSE_PRESS, x, y, cmd.button());
1363                                 bv->theLockingInset()->localDispatch(cmd1);
1364                                 break;
1365                         }
1366                         bv->unlockInset(bv->theLockingInset());
1367                 }
1368
1369                 if (!inset_hit)
1370                         selection_possible = true;
1371                 bv->screen().hideCursor();
1372
1373                 // Clear the selection
1374                 bv->screen().toggleSelection(bv->text, bv);
1375                 bv->text->clearSelection();
1376                 bv->text->fullRebreak(bv);
1377                 bv->update();
1378                 bv->updateScrollbar();
1379
1380                 // Single left click in math inset?
1381                 if (isHighlyEditableInset(inset_hit)) {
1382                         // Highly editable inset, like math
1383                         UpdatableInset * inset = static_cast<UpdatableInset *>(inset_hit);
1384                         selection_possible = false;
1385                         bv->owner()->updateLayoutChoice();
1386                         bv->owner()->message(inset->editMessage());
1387                         //inset->edit(bv, x, y, cmd.button());
1388                         // We just have to lock the inset before calling a PressEvent on it!
1389                         // we don't need the edit() call here! (Jug20020329)
1390                         if (!bv->lockInset(inset))
1391                                 lyxerr[Debug::INSETS] << "Cannot lock inset" << endl;
1392                         FuncRequest cmd1(bv, LFUN_MOUSE_PRESS, x, y, cmd.button());
1393                         inset->localDispatch(cmd1);
1394                         break;
1395                 }
1396                 // I'm not sure we should continue here if we hit an inset (Jug20020403)
1397
1398                 // Right click on a footnote flag opens float menu
1399                 if (cmd.button() == mouse_button::button3) {
1400                         selection_possible = false;
1401                         break;
1402                 }
1403
1404                 if (!inset_hit) // otherwise it was already set in checkInsetHit(...)
1405                         bv->text->setCursorFromCoordinates(bv, x, y + screen_first);
1406                 finishUndo();
1407                 bv->text->selection.cursor = bv->text->cursor;
1408                 bv->text->cursor.x_fix(bv->text->cursor.x());
1409
1410                 bv->owner()->updateLayoutChoice();
1411                 if (bv->fitCursor())
1412                         selection_possible = false;
1413
1414                 // Insert primary selection with middle mouse
1415                 // if there is a local selection in the current buffer,
1416                 // insert this
1417                 if (cmd.button() == mouse_button::button2) {
1418                         if (paste_internally)
1419                                 bv->owner()->dispatch(FuncRequest(LFUN_PASTE));
1420                         else
1421                                 bv->owner()->dispatch(FuncRequest(LFUN_PASTESELECTION, "paragraph"));
1422                         selection_possible = false;
1423                 }
1424                 break;
1425         }
1426
1427         case LFUN_MOUSE_RELEASE:
1428         {
1429                 // do nothing if we used the mouse wheel
1430                 if (!bv->buffer())
1431                         break;
1432
1433                 if (cmd.button() == mouse_button::button4
1434                  || cmd.button() == mouse_button::button5)
1435                         break;
1436
1437                 // If we hit an inset, we have the inset coordinates in these
1438                 // and inset_hit points to the inset.  If we do not hit an
1439                 // inset, inset_hit is 0, and inset_x == x, inset_y == y.
1440                 int x = cmd.x;
1441                 int y = cmd.y;
1442                 Inset * inset_hit = bv->text->checkInsetHit(bv, x, y);
1443
1444                 if (bv->theLockingInset()) {
1445                         // We are in inset locking mode.
1446
1447                         // LyX does a kind of work-area grabbing for insets.
1448                         // Only a ButtonPress FuncRequest outside the inset will
1449                         // force a insetUnlock.
1450                         FuncRequest cmd1(bv, LFUN_MOUSE_RELEASE, x, y, cmd.button());
1451                         bv->theLockingInset()->localDispatch(cmd1);
1452                         break;
1453                 }
1454
1455                 selection_possible = false;
1456
1457                 if (cmd.button() == mouse_button::button2)
1458                         break;
1459
1460                 // finish selection
1461                 if (cmd.button() == mouse_button::button1)
1462                         bv->haveSelection(selection.set());
1463
1464                 bv->switchKeyMap();
1465                 bv->owner()->view_state_changed();
1466                 bv->owner()->updateMenubar();
1467                 bv->owner()->updateToolbar();
1468
1469                 // Did we hit an editable inset?
1470                 if (inset_hit) {
1471                         selection_possible = false;
1472
1473                         // if we reach this point with a selection, it
1474                         // must mean we are currently selecting.
1475                         // But we don't want to open the inset
1476                         // because that is annoying for the user.
1477                         // So just pretend we didn't hit it.
1478                         // this is OK because a "kosher" ButtonRelease
1479                         // will follow a ButtonPress that clears
1480                         // the selection.
1481                         // Note this also fixes selection drawing
1482                         // problems if we end up opening an inset
1483                         if (selection.set())
1484                                 break;
1485
1486                         // CHECK fix this proper in 0.13
1487                         // well, maybe 13.0 !!!!!!!!!
1488
1489                         // Following a ref shouldn't issue
1490                         // a push on the undo-stack
1491                         // anylonger, now that we have
1492                         // keybindings for following
1493                         // references and returning from
1494                         // references.  IMHO though, it
1495                         // should be the inset's own business
1496                         // to push or not push on the undo
1497                         // stack. They don't *have* to
1498                         // alter the document...
1499                         // (Joacim)
1500                         // ...or maybe the SetCursorParUndo()
1501                         // below isn't necessary at all anylonger?
1502                         if (inset_hit->lyxCode() == Inset::REF_CODE)
1503                                 setCursorParUndo(bv);
1504
1505                         bv->owner()->message(inset_hit->editMessage());
1506
1507                         if (isHighlyEditableInset(inset_hit)) {
1508                                 // Highly editable inset, like math
1509                                 UpdatableInset * inset = (UpdatableInset *) inset_hit;
1510                                 FuncRequest cmd1(bv, LFUN_MOUSE_RELEASE, x, y, cmd.button());
1511                                 inset->localDispatch(cmd1);
1512                         } else {
1513                                 FuncRequest cmd1(bv, LFUN_MOUSE_RELEASE, x, y, cmd.button());
1514                                 inset_hit->localDispatch(cmd1);
1515                                 // IMO this is a grosshack! Inset's should be changed so that
1516                                 // they call the actions they have to do with the insetButtonRel.
1517                                 // function and not in the edit(). This should be changed
1518                                 // (Jug 20020329)
1519 #ifdef WITH_WARNINGS
1520 #warning Please remove donot call inset->edit() here (Jug 20020812)
1521 #endif
1522                                 inset_hit->edit(bv, x, y, cmd.button());
1523                         }
1524                         break;
1525                 }
1526
1527                 // Maybe we want to edit a bibitem ale970302
1528                 if (bv->text->cursor.par()->bibkey) {
1529                         bool const is_rtl =
1530                                 bv->text->cursor.par()->isRightToLeftPar(bv->buffer()->params);
1531                         int const width =
1532                                 bibitemMaxWidth(bv, bv->buffer()->params.getLyXTextClass().defaultfont());
1533                         if ((is_rtl && x > bv->text->workWidth(bv)-20-width) ||
1534                                         (!is_rtl && x < 20 + width)) {
1535                                 bv->text->cursor.par()->bibkey->edit(bv, 0, 0, mouse_button::none);
1536                         }
1537                 }
1538                 break;
1539         }
1540
1541         case LFUN_SELFINSERT: {
1542                 if (cmd.argument.empty())
1543                         break;
1544
1545                 // Automatically delete the currently selected
1546                 // text and replace it with what is being
1547                 // typed in now. Depends on lyxrc settings
1548                 // "auto_region_delete", which defaults to
1549                 // true (on).
1550
1551                 if (lyxrc.auto_region_delete) {
1552                         if (selection.set()) {
1553                                 cutSelection(bv, false, false);
1554                                 update(bv);
1555                         }
1556                         bv->haveSelection(false);
1557                 }
1558
1559                 bv->beforeChange(this);
1560                 LyXFont const old_font(real_current_font);
1561
1562                 string::const_iterator cit = cmd.argument.begin();
1563                 string::const_iterator end = cmd.argument.end();
1564                 for (; cit != end; ++cit)
1565                         bv->owner()->getIntl().getTransManager().
1566                                 TranslateAndInsert(*cit, this);
1567
1568                 update(bv);
1569                 selection.cursor = cursor;
1570                 moveCursorUpdate(bv, false);
1571
1572                 // real_current_font.number can change so we need to
1573                 // update the minibuffer
1574                 if (old_font != real_current_font)
1575                         bv->owner()->view_state_changed();
1576                 break;
1577         }
1578
1579         case LFUN_HTMLURL: {
1580                 InsetCommandParams p("htmlurl");
1581                 bv->owner()->getDialogs().createUrl(p.getAsString());
1582                 break;
1583         }
1584
1585         case LFUN_URL: {
1586                 InsetCommandParams p("url");
1587                 bv->owner()->getDialogs().createUrl(p.getAsString());
1588                 break;
1589         }
1590
1591
1592 #if 0
1593         case LFUN_INSET_LIST:
1594         case LFUN_INSET_THEOREM:
1595 #endif
1596         case LFUN_INSERT_NOTE:
1597         case LFUN_INSERT_URL:
1598         case LFUN_INSET_CAPTION:
1599         case LFUN_INSET_ERT:
1600         case LFUN_INSET_EXTERNAL:
1601         case LFUN_INSET_FLOAT:
1602         case LFUN_INSET_FOOTNOTE:
1603         case LFUN_INSET_MARGINAL:
1604         case LFUN_INSET_MINIPAGE:
1605         case LFUN_INSET_OPTARG:
1606         case LFUN_INSET_WIDE_FLOAT:
1607         case LFUN_INSET_WRAP:
1608         case LFUN_TABULAR_INSERT:
1609         case LFUN_INDEX_INSERT:
1610         case LFUN_INDEX_PRINT:
1611         case LFUN_PARENTINSERT:
1612         case LFUN_TOC_INSERT:
1613         {
1614                 Inset * inset = createInset(cmd);
1615                 if (inset) {
1616                         bool gotsel = false;
1617                         if (selection.set()) {
1618                                 cutSelection(bv, true, false);
1619                                 gotsel = true;
1620                         }
1621                         if (bv->insertInset(inset)) {
1622                                 inset->edit(bv);
1623                                 if (gotsel)
1624                                         bv->owner()->dispatch(FuncRequest(LFUN_PASTESELECTION));
1625                         }
1626                         else
1627                                 delete inset;
1628                 }
1629                 break;
1630         }
1631
1632
1633         default:
1634                 return Inset::UNDISPATCHED;
1635         }
1636
1637         return Inset::DISPATCHED;
1638 }