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