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 "language.h"
  27 #include "support/lstrings.h"
  28 #include "frontends/LyXView.h"
  29 #include "frontends/screen.h"
  30 #include "frontends/WorkArea.h"
  31 #include "insets/insetspecialchar.h"
  32 #include "insets/insettext.h"
  33 #include "insets/insetquotes.h"
  34 #include "insets/insetcommand.h"
  35 #include "undo_funcs.h"
  36
  37 #include <ctime>
  38 #include <clocale>
  39
  40 using std::endl;
  41
  42 extern string current_layout;
  43
  44 namespace {
  45
  46         void moveCursorUpdate(BufferView * bv, bool selecting)
  47         {
  48                 LyXText * lt = bv->getLyXText();
  49
  50                 if (selecting || lt->selection.mark()) {
  51                         lt->setSelection(bv);
  52                         if (lt->bv_owner)
  53                                 bv->toggleToggle();
  54                         else
  55                                 bv->updateInset(lt->inset_owner, false);
  56                 }
  57                 if (lt->bv_owner) {
  58                         //if (fitcur)
  59                         //      bv->update(lt, BufferView::SELECT|BufferView::FITCUR);
  60                         //else
  61                                 bv->update(lt, BufferView::SELECT);
  62                         bv->showCursor();
  63                 } else if (bv->text->status() != LyXText::UNCHANGED) {
  64                         bv->theLockingInset()->hideInsetCursor(bv);
  65                         bv->update(bv->text, BufferView::SELECT|BufferView::FITCUR);
  66                         bv->showCursor();
  67                 }
  68
  69                 if (!lt->selection.set())
  70                         bv->workarea().haveSelection(false);
  71
  72                 bv->switchKeyMap();
  73         }
  74
  75
  76         void finishChange(BufferView * bv, bool selecting = false)
  77         {
  78                 finishUndo();
  79                 moveCursorUpdate(bv, selecting);
  80                 bv->owner()->view_state_changed();
  81         }
  82
  83 }
  84
  85
  86 bool LyXText::gotoNextInset(BufferView * bv,
  87         vector<Inset::Code> const & codes, string const & contents) const
  88 {
  89         LyXCursor res = cursor;
  90         Inset * inset;
  91         do {
  92                 if (res.pos() < res.par()->size() - 1) {
  93                         res.pos(res.pos() + 1);
  94                 } else  {
  95                         res.par(res.par()->next());
  96                         res.pos(0);
  97                 }
  98
  99         } while (res.par() &&
 100                  !(res.par()->isInset(res.pos())
 101                    && (inset = res.par()->getInset(res.pos())) != 0
 102                    && find(codes.begin(), codes.end(), inset->lyxCode())
 103                    != codes.end()
 104                    && (contents.empty() ||
 105                        static_cast<InsetCommand *>(
 106                                                         res.par()->getInset(res.pos()))->getContents()
 107                        == contents)));
 108
 109         if (res.par()) {
 110                 setCursor(bv, res.par(), res.pos(), false);
 111                 return true;
 112         }
 113         return false;
 114 }
 115
 116
 117 void LyXText::gotoInset(BufferView * bv, vector<Inset::Code> const & codes,
 118                                   bool same_content)
 119 {
 120         bv->hideCursor();
 121         bv->beforeChange(this);
 122         update(bv, false);
 123
 124         string contents;
 125         if (same_content && cursor.par()->isInset(cursor.pos())) {
 126                 Inset const * inset = cursor.par()->getInset(cursor.pos());
 127                 if (find(codes.begin(), codes.end(), inset->lyxCode())
 128                     != codes.end())
 129                         contents = static_cast<InsetCommand const *>(inset)->getContents();
 130         }
 131
 132         if (!gotoNextInset(bv, codes, contents)) {
 133                 if (cursor.pos() || cursor.par() != ownerParagraph()) {
 134                         LyXCursor tmp = cursor;
 135                         cursor.par(ownerParagraph());
 136                         cursor.pos(0);
 137                         if (!gotoNextInset(bv, codes, contents)) {
 138                                 cursor = tmp;
 139                                 bv->owner()->message(_("No more insets"));
 140                         }
 141                 } else {
 142                         bv->owner()->message(_("No more insets"));
 143                 }
 144         }
 145         update(bv, false);
 146         selection.cursor = cursor;
 147 }
 148
 149
 150 void LyXText::gotoInset(BufferView * bv, Inset::Code code, bool same_content)
 151 {
 152         gotoInset(bv, vector<Inset::Code>(1, code), same_content);
 153 }
 154
 155
 156 void LyXText::cursorPrevious(BufferView * bv)
 157 {
 158         if (!cursor.row()->previous()) {
 159                 if (first_y > 0) {
 160                         int new_y = bv->text->first_y - bv->workarea().workHeight();
 161                         bv->screen().draw(bv->text, bv, new_y < 0 ? 0 : new_y);
 162                         bv->updateScrollbar();
 163                 }
 164                 return;
 165         }
 166
 167         int y = first_y;
 168         Row * cursorrow = cursor.row();
 169
 170         setCursorFromCoordinates(bv, cursor.x_fix(), y);
 171         finishUndo();
 172
 173         int new_y;
 174         if (cursorrow == bv->text->cursor.row()) {
 175                 // we have a row which is higher than the workarea so we leave the
 176                 // cursor on the start of the row and move only the draw up as soon
 177                 // as we move the cursor or do something while inside the row (it may
 178                 // span several workarea-heights) we'll move to the top again, but this
 179                 // is better than just jump down and only display part of the row.
 180                 new_y = bv->text->first_y - bv->workarea().workHeight();
 181         } else {
 182                 if (inset_owner) {
 183                         new_y = bv->text->cursor.iy()
 184                                 + bv->theLockingInset()->insetInInsetY() + y
 185                                 + cursor.row()->height()
 186                                 - bv->workarea().workHeight() + 1;
 187                 } else {
 188                         new_y = cursor.y()
 189                                 - cursor.row()->baseline()
 190                                 + cursor.row()->height()
 191                                 - bv->workarea().workHeight() + 1;
 192                 }
 193         }
 194         bv->screen().draw(bv->text, bv, new_y < 0 ? 0 : new_y);
 195         if (cursor.row()->previous()) {
 196                 LyXCursor cur;
 197                 setCursor(bv, cur, cursor.row()->previous()->par(),
 198                                                 cursor.row()->previous()->pos(), false);
 199                 if (cur.y() > first_y) {
 200                         cursorUp(bv, true);
 201                 }
 202         }
 203         bv->updateScrollbar();
 204 }
 205
 206
 207 void LyXText::cursorNext(BufferView * bv)
 208 {
 209         if (!cursor.row()->next()) {
 210                 int y = cursor.y() - cursor.row()->baseline() +
 211                         cursor.row()->height();
 212                 if (y > int(first_y + bv->workarea().workHeight())) {
 213                         bv->screen().draw(bv->text, bv,
 214                                                   bv->text->first_y + bv->workarea().workHeight());
 215                         bv->updateScrollbar();
 216                 }
 217                 return;
 218         }
 219
 220         int y = first_y + bv->workarea().workHeight();
 221         if (inset_owner && !first_y) {
 222                 y -= (bv->text->cursor.iy()
 223                           - bv->text->first_y
 224                           + bv->theLockingInset()->insetInInsetY());
 225         }
 226
 227         getRowNearY(y);
 228
 229         Row * cursorrow = cursor.row();
 230         setCursorFromCoordinates(bv, cursor.x_fix(), y);
 231         // + workarea().workHeight());
 232         finishUndo();
 233
 234         int new_y;
 235         if (cursorrow == bv->text->cursor.row()) {
 236                 // we have a row which is higher than the workarea so we leave the
 237                 // cursor on the start of the row and move only the draw down as soon
 238                 // as we move the cursor or do something while inside the row (it may
 239                 // span several workarea-heights) we'll move to the top again, but this
 240                 // is better than just jump down and only display part of the row.
 241                 new_y = bv->text->first_y + bv->workarea().workHeight();
 242         } else {
 243                 if (inset_owner) {
 244                         new_y = bv->text->cursor.iy()
 245                                 + bv->theLockingInset()->insetInInsetY()
 246                                 + y - cursor.row()->baseline();
 247                 } else {
 248                         new_y =  cursor.y() - cursor.row()->baseline();
 249                 }
 250         }
 251         bv->screen().draw(bv->text, bv, new_y);
 252         if (cursor.row()->next()) {
 253                 LyXCursor cur;
 254                 setCursor(bv, cur, cursor.row()->next()->par(),
 255                                                 cursor.row()->next()->pos(), false);
 256                 if (cur.y() < int(first_y + bv->workarea().workHeight())) {
 257                         cursorDown(bv, true);
 258                 }
 259         }
 260         bv->updateScrollbar();
 261 }
 262
 263
 264 void LyXText::update(BufferView * bv, bool changed)
 265 {
 266         BufferView::UpdateCodes c = BufferView::SELECT | BufferView::FITCUR;
 267         if (changed)
 268                 bv->update(this, c | BufferView::CHANGE);
 269         else
 270                 bv->update(this, c);
 271 }
 272
 273
 274 void specialChar(LyXText * lt, BufferView * bv, InsetSpecialChar::Kind kind)
 275 {
 276         bv->hideCursor();
 277         lt->update(bv);
 278         InsetSpecialChar * new_inset = new InsetSpecialChar(kind);
 279         if (!bv->insertInset(new_inset))
 280                 delete new_inset;
 281         else
 282                 bv->updateInset(new_inset, true);
 283 }
 284
 285
 286 Inset::RESULT LyXText::dispatch(FuncRequest const & cmd)
 287 {
 288         lyxerr[Debug::ACTION] << "LyXFunc::dispatch: action[" << cmd.action
 289                               <<"] arg[" << cmd.argument << "]" << endl;
 290
 291         BufferView * bv = cmd.view();
 292
 293         switch (cmd.action) {
 294
 295         case LFUN_APPENDIX: {
 296                 Paragraph * par = cursor.par();
 297                 bool start = !par->params().startOfAppendix();
 298
 299                 // ensure that we have only one start_of_appendix in this document
 300                 Paragraph * tmp = ownerParagraph();
 301                 for (; tmp; tmp = tmp->next())
 302                         tmp->params().startOfAppendix(false);
 303
 304                 par->params().startOfAppendix(start);
 305
 306                 // we can set the refreshing parameters now
 307                 status(cmd.view(), LyXText::NEED_MORE_REFRESH);
 308                 refresh_y = 0;
 309                 refresh_row = 0; // not needed for full update
 310                 updateCounters(cmd.view());
 311                 setCursor(cmd.view(), cursor.par(), cursor.pos());
 312                 update(bv);
 313                 break;
 314         }
 315
 316         case LFUN_DELETE_WORD_FORWARD:
 317                 bv->beforeChange(this);
 318                 update(bv, false);
 319                 deleteWordForward(bv);
 320                 update(bv);
 321                 finishChange(bv);
 322                 break;
 323
 324         case LFUN_DELETE_WORD_BACKWARD:
 325                 bv->beforeChange(this);
 326                 update(bv, false);
 327                 deleteWordBackward(bv);
 328                 update(bv, true);
 329                 finishChange(bv);
 330                 break;
 331
 332         case LFUN_DELETE_LINE_FORWARD:
 333                 bv->beforeChange(this);
 334                 update(bv, false);
 335                 deleteLineForward(bv);
 336                 update(bv);
 337                 finishChange(bv);
 338                 break;
 339
 340         case LFUN_SHIFT_TAB:
 341         case LFUN_TAB:
 342                 if (!selection.mark())
 343                         bv->beforeChange(this);
 344                 update(bv, false);
 345                 cursorTab(bv);
 346                 finishChange(bv);
 347                 break;
 348
 349         case LFUN_WORDRIGHT:
 350                 if (!selection.mark())
 351                         bv->beforeChange(this);
 352                 update(bv, false);
 353                 if (cursor.par()->isRightToLeftPar(bv->buffer()->params))
 354                         cursorLeftOneWord(bv);
 355                 else
 356                         cursorRightOneWord(bv);
 357                 finishChange(bv);
 358                 break;
 359
 360         case LFUN_WORDLEFT:
 361                 if (!selection.mark())
 362                         bv->beforeChange(this);
 363                 update(bv, false);
 364                 if (cursor.par()->isRightToLeftPar(bv->buffer()->params))
 365                         cursorRightOneWord(bv);
 366                 else
 367                         cursorLeftOneWord(bv);
 368                 finishChange(bv);
 369                 break;
 370
 371         case LFUN_BEGINNINGBUF:
 372                 if (!selection.mark())
 373                         bv->beforeChange(this);
 374                 update(bv, false);
 375                 cursorTop(bv);
 376                 finishChange(bv);
 377                 break;
 378
 379         case LFUN_ENDBUF:
 380                 if (selection.mark())
 381                         bv->beforeChange(this);
 382                 update(bv, false);
 383                 cursorBottom(bv);
 384                 finishChange(bv);
 385                 break;
 386
 387         case LFUN_RIGHTSEL:
 388                 update(bv, false);
 389                 if (cursor.par()->isRightToLeftPar(bv->buffer()->params))
 390                         cursorLeft(bv);
 391                 else
 392                         cursorRight(bv);
 393                 finishChange(bv, true);
 394                 break;
 395
 396         case LFUN_LEFTSEL:
 397                 update(bv, false);
 398                 if (cursor.par()->isRightToLeftPar(bv->buffer()->params))
 399                         cursorRight(bv);
 400                 else
 401                         cursorLeft(bv);
 402                 finishChange(bv, true);
 403                 break;
 404
 405         case LFUN_UPSEL:
 406                 update(bv, false);
 407                 cursorUp(bv, true);
 408                 finishChange(bv, true);
 409                 break;
 410
 411         case LFUN_DOWNSEL:
 412                 update(bv, false);
 413                 cursorDown(bv, true);
 414                 finishChange(bv, true);
 415                 break;
 416
 417         case LFUN_UP_PARAGRAPHSEL:
 418                 update(bv, false);
 419                 cursorUpParagraph(bv);
 420                 finishChange(bv, true);
 421                 break;
 422
 423         case LFUN_DOWN_PARAGRAPHSEL:
 424                 update(bv, false);
 425                 cursorDownParagraph(bv);
 426                 finishChange(bv, true);
 427                 break;
 428
 429         case LFUN_PRIORSEL:
 430                 update(bv, false);
 431                 cursorPrevious(bv);
 432                 finishChange(bv, true);
 433                 break;
 434
 435         case LFUN_NEXTSEL:
 436                 update(bv, false);
 437                 cursorNext(bv);
 438                 finishChange(bv, true);
 439                 break;
 440
 441         case LFUN_HOMESEL:
 442                 update(bv, false);
 443                 cursorHome(bv);
 444                 finishChange(bv, true);
 445                 break;
 446
 447         case LFUN_ENDSEL:
 448                 update(bv, false);
 449                 cursorEnd(bv);
 450                 finishChange(bv, true);
 451                 break;
 452
 453         case LFUN_WORDRIGHTSEL:
 454                 update(bv, false);
 455                 if (cursor.par()->isRightToLeftPar(bv->buffer()->params))
 456                         cursorLeftOneWord(bv);
 457                 else
 458                         cursorRightOneWord(bv);
 459                 finishChange(bv, true);
 460                 break;
 461
 462         case LFUN_WORDLEFTSEL:
 463                 update(bv, false);
 464                 if (cursor.par()->isRightToLeftPar(bv->buffer()->params))
 465                         cursorRightOneWord(bv);
 466                 else
 467                         cursorLeftOneWord(bv);
 468                 finishChange(bv, true);
 469                 break;
 470
 471         case LFUN_RIGHT: {
 472                 bool is_rtl = cursor.par()->isRightToLeftPar(bv->buffer()->params);
 473                 if (!selection.mark())
 474                         bv->beforeChange(this);
 475                 update(bv);
 476                 if (is_rtl)
 477                         cursorLeft(bv, false);
 478                 if (cursor.pos() < cursor.par()->size()
 479                     && cursor.par()->isInset(cursor.pos())
 480                     && isHighlyEditableInset(cursor.par()->getInset(cursor.pos()))) {
 481                         Inset * tmpinset = cursor.par()->getInset(cursor.pos());
 482                         cmd.message(tmpinset->editMessage());
 483                         tmpinset->edit(bv, !is_rtl);
 484                         break;
 485                 }
 486                 if (!is_rtl)
 487                         cursorRight(bv, false);
 488                 finishChange(bv);
 489                 break;
 490         }
 491
 492         case LFUN_LEFT: {
 493                 // This is soooo ugly. Isn`t it possible to make
 494                 // it simpler? (Lgb)
 495                 bool const is_rtl = cursor.par()->isRightToLeftPar(bv->buffer()->params);
 496                 if (!selection.mark())
 497                         bv->beforeChange(this);
 498                 update(bv);
 499                 LyXCursor const cur = cursor;
 500                 if (!is_rtl)
 501                         cursorLeft(bv, false);
 502                 if ((is_rtl || cur != cursor) && // only if really moved!
 503                     cursor.pos() < cursor.par()->size() &&
 504                     cursor.par()->isInset(cursor.pos()) &&
 505                     isHighlyEditableInset(cursor.par()->getInset(cursor.pos()))) {
 506                         Inset * tmpinset = cursor.par()->getInset(cursor.pos());
 507                         cmd.message(tmpinset->editMessage());
 508                         tmpinset->edit(bv, is_rtl);
 509                         break;
 510                 }
 511                 if (is_rtl)
 512                         cursorRight(bv, false);
 513                 finishChange(bv);
 514                 break;
 515         }
 516
 517         case LFUN_UP:
 518                 if (!selection.mark())
 519                         bv->beforeChange(this);
 520                 bv->update(this, BufferView::UPDATE);
 521                 cursorUp(bv);
 522                 finishChange(bv);
 523                 break;
 524
 525         case LFUN_DOWN:
 526                 if (!selection.mark())
 527                         bv->beforeChange(this);
 528                 bv->update(this, BufferView::UPDATE);
 529                 cursorDown(bv);
 530                 finishChange(bv);
 531                 break;
 532
 533         case LFUN_UP_PARAGRAPH:
 534                 if (!selection.mark())
 535                         bv->beforeChange(this);
 536                 bv->update(this, BufferView::UPDATE);
 537                 cursorUpParagraph(bv);
 538                 finishChange(bv);
 539                 break;
 540
 541         case LFUN_DOWN_PARAGRAPH:
 542                 if (!selection.mark())
 543                         bv->beforeChange(this);
 544                 bv->update(this, BufferView::UPDATE);
 545                 cursorDownParagraph(bv);
 546                 finishChange(bv, false);
 547                 break;
 548
 549         case LFUN_PRIOR:
 550                 if (!selection.mark())
 551                         bv->beforeChange(this);
 552                 bv->update(this, BufferView::UPDATE);
 553                 cursorPrevious(bv);
 554                 finishChange(bv, false);
 555                 // was:
 556                 // finishUndo();
 557                 // moveCursorUpdate(bv, false, false);
 558                 // owner_->view_state_changed();
 559                 break;
 560
 561         case LFUN_NEXT:
 562                 if (!selection.mark())
 563                         bv->beforeChange(this);
 564                 bv->update(this, BufferView::UPDATE);
 565                 cursorNext(bv);
 566                 finishChange(bv, false);
 567                 break;
 568
 569         case LFUN_HOME:
 570                 if (!selection.mark())
 571                         bv->beforeChange(this);
 572                 update(bv);
 573                 cursorHome(bv);
 574                 finishChange(bv, false);
 575                 break;
 576
 577         case LFUN_END:
 578                 if (!selection.mark())
 579                         bv->beforeChange(this);
 580                 update(bv);
 581                 cursorEnd(bv);
 582                 finishChange(bv, false);
 583                 break;
 584
 585         case LFUN_BREAKLINE:
 586                 bv->beforeChange(this);
 587                 insertChar(bv, Paragraph::META_NEWLINE);
 588                 update(bv, true);
 589                 setCursor(bv, cursor.par(), cursor.pos());
 590                 moveCursorUpdate(bv, false);
 591                 break;
 592
 593         case LFUN_DELETE:
 594                 if (!selection.set()) {
 595                         Delete(bv);
 596                         selection.cursor = cursor;
 597                         update(bv);
 598                         // It is possible to make it a lot faster still
 599                         // just comment out the line below...
 600                         bv->showCursor();
 601                 } else {
 602                         update(bv, false);
 603                         cutSelection(bv, true);
 604                         update(bv);
 605                 }
 606                 moveCursorUpdate(bv, false);
 607                 bv->owner()->view_state_changed();
 608                 bv->switchKeyMap();
 609                 break;
 610
 611         case LFUN_DELETE_SKIP:
 612                 // Reverse the effect of LFUN_BREAKPARAGRAPH_SKIP.
 613                 if (!selection.set()) {
 614                         LyXCursor cur = cursor;
 615                         if (cur.pos() == cur.par()->size()) {
 616                                 cursorRight(bv);
 617                                 cur = cursor;
 618                                 if (cur.pos() == 0
 619                                     && !(cur.par()->params().spaceTop()
 620                                          == VSpace (VSpace::NONE))) {
 621                                         setParagraph(bv,
 622                                                  cur.par()->params().lineTop(),
 623                                                  cur.par()->params().lineBottom(),
 624                                                  cur.par()->params().pagebreakTop(),
 625                                                  cur.par()->params().pagebreakBottom(),
 626                                                  VSpace(VSpace::NONE),
 627                                                  cur.par()->params().spaceBottom(),
 628                                                  cur.par()->params().spacing(),
 629                                                  cur.par()->params().align(),
 630                                                  cur.par()->params().labelWidthString(), 0);
 631                                         cursorLeft(bv);
 632                                         update(bv);
 633                                 } else {
 634                                         cursorLeft(bv);
 635                                         Delete(bv);
 636                                         selection.cursor = cursor;
 637                                 }
 638                         } else {
 639                                 Delete(bv);
 640                                 selection.cursor = cursor;
 641                         }
 642                 } else {
 643                         update(bv, false);
 644                         cutSelection(bv, true);
 645                 }
 646                 update(bv);
 647                 break;
 648
 649
 650         case LFUN_BACKSPACE:
 651                 if (!selection.set()) {
 652                         if (bv->owner()->getIntl().getTransManager().backspace()) {
 653                                 backspace(bv);
 654                                 selection.cursor = cursor;
 655                                 update(bv);
 656                                 // It is possible to make it a lot faster still
 657                                 // just comment out the line below...
 658                                 bv->showCursor();
 659                         }
 660                 } else {
 661                         update(bv, false);
 662                         cutSelection(bv, true);
 663                         update(bv);
 664                 }
 665                 bv->owner()->view_state_changed();
 666                 bv->switchKeyMap();
 667                 break;
 668
 669         case LFUN_BACKSPACE_SKIP:
 670                 // Reverse the effect of LFUN_BREAKPARAGRAPH_SKIP.
 671                 if (!selection.set()) {
 672                         LyXCursor cur = cursor;
 673                         if (cur.pos() == 0
 674                             && !(cur.par()->params().spaceTop()
 675                                  == VSpace (VSpace::NONE))) {
 676                                 setParagraph(bv,
 677                                          cur.par()->params().lineTop(),
 678                                          cur.par()->params().lineBottom(),
 679                                          cur.par()->params().pagebreakTop(),
 680                                          cur.par()->params().pagebreakBottom(),
 681                                          VSpace(VSpace::NONE), cur.par()->params().spaceBottom(),
 682                                          cur.par()->params().spacing(),
 683                                          cur.par()->params().align(),
 684                                          cur.par()->params().labelWidthString(), 0);
 685                         } else {
 686                                 backspace(bv);
 687                                 selection.cursor = cur;
 688                         }
 689                 } else {
 690                         update(bv, false);
 691                         cutSelection(bv, true);
 692                 }
 693                 update(bv);
 694                 break;
 695
 696         case LFUN_BREAKPARAGRAPH:
 697                 bv->beforeChange(this);
 698                 breakParagraph(bv, 0);
 699                 update(bv);
 700                 selection.cursor = cursor;
 701                 bv->switchKeyMap();
 702                 bv->owner()->view_state_changed();
 703                 break;
 704
 705         case LFUN_BREAKPARAGRAPHKEEPLAYOUT:
 706                 bv->beforeChange(this);
 707                 breakParagraph(bv, 1);
 708                 update(bv);
 709                 selection.cursor = cursor;
 710                 bv->switchKeyMap();
 711                 bv->owner()->view_state_changed();
 712                 break;
 713
 714         case LFUN_BREAKPARAGRAPH_SKIP: {
 715                 // When at the beginning of a paragraph, remove
 716                 // indentation and add a "defskip" at the top.
 717                 // Otherwise, do the same as LFUN_BREAKPARAGRAPH.
 718                 LyXCursor cur = cursor;
 719                 bv->beforeChange(this);
 720                 if (cur.pos() == 0) {
 721                         if (cur.par()->params().spaceTop() == VSpace(VSpace::NONE)) {
 722                                 setParagraph(bv,
 723                                          cur.par()->params().lineTop(),
 724                                          cur.par()->params().lineBottom(),
 725                                          cur.par()->params().pagebreakTop(),
 726                                          cur.par()->params().pagebreakBottom(),
 727                                          VSpace(VSpace::DEFSKIP), cur.par()->params().spaceBottom(),
 728                                          cur.par()->params().spacing(),
 729                                          cur.par()->params().align(),
 730                                          cur.par()->params().labelWidthString(), 1);
 731                                 //update(bv);
 732                         }
 733                 }
 734                 else {
 735                         breakParagraph(bv, 0);
 736                         //update(bv);
 737                 }
 738                 update(bv);
 739                 selection.cursor = cur;
 740                 bv->switchKeyMap();
 741                 bv->owner()->view_state_changed();
 742                 break;
 743         }
 744
 745         case LFUN_PARAGRAPH_SPACING: {
 746                 Paragraph * par = cursor.par();
 747                 Spacing::Space cur_spacing = par->params().spacing().getSpace();
 748                 float cur_value = 1.0;
 749                 if (cur_spacing == Spacing::Other)
 750                         cur_value = par->params().spacing().getValue();
 751
 752                 istringstream is(cmd.argument.c_str());
 753                 string tmp;
 754                 is >> tmp;
 755                 Spacing::Space new_spacing = cur_spacing;
 756                 float new_value = cur_value;
 757                 if (tmp.empty()) {
 758                         lyxerr << "Missing argument to `paragraph-spacing'"
 759                                << endl;
 760                 } else if (tmp == "single") {
 761                         new_spacing = Spacing::Single;
 762                 } else if (tmp == "onehalf") {
 763                         new_spacing = Spacing::Onehalf;
 764                 } else if (tmp == "double") {
 765                         new_spacing = Spacing::Double;
 766                 } else if (tmp == "other") {
 767                         new_spacing = Spacing::Other;
 768                         float tmpval = 0.0;
 769                         is >> tmpval;
 770                         lyxerr << "new_value = " << tmpval << endl;
 771                         if (tmpval != 0.0)
 772                                 new_value = tmpval;
 773                 } else if (tmp == "default") {
 774                         new_spacing = Spacing::Default;
 775                 } else {
 776                         lyxerr << _("Unknown spacing argument: ")
 777                                << cmd.argument << endl;
 778                 }
 779                 if (cur_spacing != new_spacing || cur_value != new_value) {
 780                         par->params().spacing(Spacing(new_spacing, new_value));
 781                         redoParagraph(bv);
 782                         update(bv);
 783                 }
 784                 break;
 785         }
 786
 787         case LFUN_INSET_TOGGLE:
 788                 bv->hideCursor();
 789                 bv->beforeChange(this);
 790                 update(bv, false);
 791                 toggleInset(bv);
 792                 update(bv, false);
 793                 bv->switchKeyMap();
 794                 break;
 795
 796         case LFUN_PROTECTEDSPACE:
 797                 if (cursor.par()->layout()->free_spacing) {
 798                         insertChar(bv, ' ');
 799                         update(bv);
 800                 } else {
 801                         specialChar(this, bv, InsetSpecialChar::PROTECTED_SEPARATOR);
 802                 }
 803                 moveCursorUpdate(bv, false);
 804                 break;
 805
 806         case LFUN_HYPHENATION:
 807                 specialChar(this, bv, InsetSpecialChar::HYPHENATION);
 808                 break;
 809
 810         case LFUN_LIGATURE_BREAK:
 811                 specialChar(this, bv, InsetSpecialChar::LIGATURE_BREAK);
 812                 break;
 813
 814         case LFUN_LDOTS:
 815                 specialChar(this, bv, InsetSpecialChar::LDOTS);
 816                 break;
 817
 818         case LFUN_HFILL:
 819                 bv->hideCursor();
 820                 update(bv, false);
 821                 insertChar(bv, Paragraph::META_HFILL);
 822                 update(bv);
 823                 break;
 824
 825         case LFUN_END_OF_SENTENCE:
 826                 specialChar(this, bv, InsetSpecialChar::END_OF_SENTENCE);
 827                 break;
 828
 829         case LFUN_MENU_SEPARATOR:
 830                 specialChar(this, bv, InsetSpecialChar::MENU_SEPARATOR);
 831                 break;
 832
 833         case LFUN_MARK_OFF:
 834                 bv->beforeChange(this);
 835                 update(bv, false);
 836                 selection.cursor = cursor;
 837                 cmd.message(N_("Mark off"));
 838                 break;
 839
 840         case LFUN_MARK_ON:
 841                 bv->beforeChange(this);
 842                 selection.mark(true);
 843                 update(bv, false);
 844                 selection.cursor = cursor;
 845                 cmd.message(N_("Mark on"));
 846                 break;
 847
 848         case LFUN_SETMARK:
 849                 bv->beforeChange(this);
 850                 if (selection.mark()) {
 851                         update(bv);
 852                         cmd.message(N_("Mark removed"));
 853                 } else {
 854                         selection.mark(true);
 855                         update(bv);
 856                         cmd.message(N_("Mark set"));
 857                 }
 858                 selection.cursor = cursor;
 859                 break;
 860
 861         case LFUN_UPCASE_WORD:
 862                 update(bv, false);
 863                 changeCase(bv, LyXText::text_uppercase);
 864                 if (inset_owner)
 865                         bv->updateInset(inset_owner, true);
 866                 update(bv);
 867                 break;
 868
 869         case LFUN_LOWCASE_WORD:
 870                 update(bv, false);
 871                 changeCase(bv, LyXText::text_lowercase);
 872                 if (inset_owner)
 873                         bv->updateInset(inset_owner, true);
 874                 update(bv);
 875                 break;
 876
 877         case LFUN_CAPITALIZE_WORD:
 878                 update(bv, false);
 879                 changeCase(bv, LyXText::text_capitalization);
 880                 if (inset_owner)
 881                         bv->updateInset(inset_owner, true);
 882                 update(bv);
 883                 break;
 884
 885         case LFUN_TRANSPOSE_CHARS:
 886                 update(bv, false);
 887                 transposeChars(*bv);
 888                 if (inset_owner)
 889                         bv->updateInset(inset_owner, true);
 890                 update(bv);
 891                 break;
 892
 893         case LFUN_PASTE:
 894                 cmd.message(_("Paste"));
 895                 bv->hideCursor();
 896                 // clear the selection
 897                 bv->toggleSelection();
 898                 clearSelection();
 899                 update(bv, false);
 900                 pasteSelection(bv);
 901                 clearSelection(); // bug 393
 902                 update(bv, false);
 903                 update(bv);
 904                 bv->switchKeyMap();
 905                 break;
 906
 907         case LFUN_CUT:
 908                 bv->hideCursor();
 909                 update(bv, false);
 910                 cutSelection(bv, true);
 911                 update(bv);
 912                 cmd.message(_("Cut"));
 913                 break;
 914
 915         case LFUN_COPY:
 916                 copySelection(bv);
 917                 cmd.message(_("Copy"));
 918                 break;
 919
 920         case LFUN_BEGINNINGBUFSEL:
 921                 if (inset_owner)
 922                         return Inset::UNDISPATCHED;
 923                 update(bv, false);
 924                 cursorTop(bv);
 925                 finishChange(bv, true);
 926                 break;
 927
 928         case LFUN_ENDBUFSEL:
 929                 if (inset_owner)
 930                         return Inset::UNDISPATCHED;
 931                 update(bv, false);
 932                 cursorBottom(bv);
 933                 finishChange(bv, true);
 934                 break;
 935
 936         case LFUN_GETXY:
 937                 cmd.message(tostr(cursor.x()) + ' ' + tostr(cursor.y()));
 938                 break;
 939
 940         case LFUN_SETXY: {
 941                 int x = 0;
 942                 int y = 0;
 943                 istringstream is(cmd.argument.c_str());
 944                 is >> x >> y;
 945                 if (!is)
 946                         lyxerr << "SETXY: Could not parse coordinates in '"
 947                                << cmd.argument << std::endl;
 948                 else
 949                         setCursorFromCoordinates(bv, x, y);
 950                 break;
 951         }
 952
 953         case LFUN_GETFONT:
 954                 if (current_font.shape() == LyXFont::ITALIC_SHAPE)
 955                         cmd.message("E");
 956                 else if (current_font.shape() == LyXFont::SMALLCAPS_SHAPE)
 957                         cmd.message("N");
 958                 else
 959                         cmd.message("0");
 960                 break;
 961
 962         case LFUN_GETLAYOUT:
 963                 cmd.message(tostr(cursor.par()->layout()));
 964                 break;
 965
 966         case LFUN_LAYOUT: {
 967                 lyxerr[Debug::INFO] << "LFUN_LAYOUT: (arg) "
 968                   << cmd.argument << endl;
 969
 970                 // This is not the good solution to the empty argument
 971                 // problem, but it will hopefully suffice for 1.2.0.
 972                 // The correct solution would be to augument the
 973                 // function list/array with information about what
 974                 // functions needs arguments and their type.
 975                 if (cmd.argument.empty()) {
 976                         cmd.errorMessage(_("LyX function 'layout' needs an argument."));
 977                         break;
 978                 }
 979
 980                 // Derive layout number from given argument (string)
 981                 // and current buffer's textclass (number)
 982                 LyXTextClass const & tclass = bv->buffer()->params.getLyXTextClass();
 983                 bool hasLayout = tclass.hasLayout(cmd.argument);
 984                 string layout = cmd.argument;
 985
 986                 // If the entry is obsolete, use the new one instead.
 987                 if (hasLayout) {
 988                         string const & obs = tclass[layout]->obsoleted_by();
 989                         if (!obs.empty())
 990                                 layout = obs;
 991                 }
 992
 993                 if (!hasLayout) {
 994                         cmd.errorMessage(string(N_("Layout ")) + cmd.argument +
 995                                 N_(" not known"));
 996                         break;
 997                 }
 998
 999                 bool change_layout = (current_layout != layout);
1000                 if (!change_layout && selection.set() &&
1001                         selection.start.par() != selection.end.par())
1002                 {
1003                         Paragraph * spar = selection.start.par();
1004                         Paragraph * epar = selection.end.par()->next();
1005                         while (spar != epar) {
1006                                 if (spar->layout()->name() != current_layout) {
1007                                         change_layout = true;
1008                                         break;
1009                                 }
1010                         }
1011                 }
1012                 if (change_layout) {
1013                         bv->hideCursor();
1014                         current_layout = layout;
1015                         update(bv, false);
1016                         setLayout(bv, layout);
1017                         bv->owner()->setLayout(layout);
1018                         update(bv);
1019                         bv->switchKeyMap();
1020                 }
1021                 break;
1022         }
1023
1024         case LFUN_PASTESELECTION: {
1025                 if (!bv->buffer())
1026                         break;
1027                 bv->hideCursor();
1028                 // this was originally a beforeChange(bv->text), i.e
1029                 // the outermost LyXText!
1030                 bv->beforeChange(this);
1031                 string const clip = bv->workarea().getClipboard();
1032                 if (!clip.empty()) {
1033                         if (cmd.argument == "paragraph")
1034                                 insertStringAsParagraphs(bv, clip);
1035                         else
1036                                 insertStringAsLines(bv, clip);
1037                         clearSelection();
1038                         update(bv);
1039                 }
1040                 break;
1041         }
1042
1043         case LFUN_GOTOERROR:
1044                 gotoInset(bv, Inset::ERROR_CODE, false);
1045                 break;
1046
1047         case LFUN_GOTONOTE:
1048                 gotoInset(bv, Inset::NOTE_CODE, false);
1049                 break;
1050
1051         case LFUN_REFERENCE_GOTO:
1052         {
1053                 vector<Inset::Code> tmp;
1054                 tmp.push_back(Inset::LABEL_CODE);
1055                 tmp.push_back(Inset::REF_CODE);
1056                 gotoInset(bv, tmp, true);
1057                 break;
1058         }
1059
1060 #if 0
1061         case LFUN_INSET_LIST:
1062         case LFUN_INSET_THEOREM:
1063 #endif
1064         case LFUN_INSERT_NOTE:
1065         case LFUN_INSET_ERT:
1066         case LFUN_INSET_EXTERNAL:
1067         case LFUN_INSET_FLOAT:
1068         case LFUN_INSET_FOOTNOTE:
1069         case LFUN_INSET_MARGINAL:
1070         case LFUN_INSET_MINIPAGE:
1071         case LFUN_INSET_OPTARG:
1072         case LFUN_INSET_WIDE_FLOAT:
1073         case LFUN_TABULAR_INSERT:
1074         {
1075                 Inset * inset = createInset(cmd);
1076                 if (inset) {
1077                         bool gotsel = false;
1078                         if (selection.set()) {
1079                                 cutSelection(bv, true, false);
1080                                 gotsel = true;
1081                         }
1082                         if (bv->insertInset(inset)) {
1083                                 inset->edit(bv);
1084                                 if (gotsel)
1085                                         bv->owner()->dispatch(FuncRequest(LFUN_PASTESELECTION));
1086                         }
1087                         else
1088                                 delete inset;
1089                 }
1090                 break;
1091         }
1092
1093
1094         case LFUN_QUOTE: {
1095                 Paragraph const * par = cursor.par();
1096                 lyx::pos_type pos = cursor.pos();
1097                 char c;
1098                 if (!pos)
1099                         c = ' ';
1100                 else if (par->isInset(pos - 1) && par->getInset(pos - 1)->isSpace())
1101                         c = ' ';
1102                 else
1103                         c = par->getChar(pos - 1);
1104
1105                 bv->hideCursor();
1106                 LyXLayout_ptr const & style = par->layout();
1107
1108                 if (style->pass_thru ||
1109                                 par->getFontSettings(bv->buffer()->params,
1110                                          pos).language()->lang() == "hebrew" ||
1111                         (!bv->insertInset(new InsetQuotes(c, bv->buffer()->params))))
1112                         bv->owner()->dispatch(FuncRequest(LFUN_SELFINSERT, "\""));
1113                 break;
1114         }
1115
1116         case LFUN_DATE_INSERT:  { // jdblair: date-insert cmd
1117                 time_t now_time_t = time(NULL);
1118                 struct tm * now_tm = localtime(&now_time_t);
1119                 setlocale(LC_TIME, "");
1120                 string arg;
1121                 if (!cmd.argument.empty())
1122                         arg = cmd.argument;
1123                 else
1124                         arg = lyxrc.date_insert_format;
1125                 char datetmp[32];
1126                 int const datetmp_len =
1127                         ::strftime(datetmp, 32, arg.c_str(), now_tm);
1128
1129                 for (int i = 0; i < datetmp_len; i++) {
1130                         insertChar(bv, datetmp[i]);
1131                         update(bv, true);
1132                 }
1133                 selection.cursor = cursor;
1134                 moveCursorUpdate(bv, false);
1135                 break;
1136         }
1137
1138         case LFUN_SELFINSERT: {
1139                 if (cmd.argument.empty())
1140                         break;
1141
1142                 // Automatically delete the currently selected
1143                 // text and replace it with what is being
1144                 // typed in now. Depends on lyxrc settings
1145                 // "auto_region_delete", which defaults to
1146                 // true (on).
1147
1148                 if (lyxrc.auto_region_delete) {
1149                         if (selection.set()) {
1150                                 cutSelection(bv, false, false);
1151                                 update(bv);
1152                         }
1153                         bv->workarea().haveSelection(false);
1154                 }
1155
1156                 bv->beforeChange(this);
1157                 LyXFont const old_font(real_current_font);
1158
1159                 string::const_iterator cit = cmd.argument.begin();
1160                 string::const_iterator end = cmd.argument.end();
1161                 for (; cit != end; ++cit)
1162                         bv->owner()->getIntl().getTransManager().
1163                                 TranslateAndInsert(*cit, this);
1164
1165                 update(bv);
1166                 selection.cursor = cursor;
1167                 moveCursorUpdate(bv, false);
1168
1169                 // real_current_font.number can change so we need to
1170                 // update the minibuffer
1171                 if (old_font != real_current_font)
1172                         bv->owner()->view_state_changed();
1173                 break;
1174         }
1175
1176         default:
1177                 return Inset::UNDISPATCHED;
1178         }
1179
1180         return Inset::DISPATCHED;
1181 }