src/Text3.cpp

   1 /**
   2  * \file text3.cpp
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author Asger Alstrup
   7  * \author Lars Gullik Bjønnes
   8  * \author Alfredo Braunstein
   9  * \author Angus Leeming
  10  * \author John Levon
  11  * \author André Pönitz
  12  *
  13  * Full author contact details are available in file CREDITS.
  14  */
  15
  16 #include <config.h>
  17
  18 #include "Text.h"
  19
  20 #include "BranchList.h"
  21 #include "FloatList.h"
  22 #include "FuncStatus.h"
  23 #include "Buffer.h"
  24 #include "buffer_funcs.h"
  25 #include "BufferParams.h"
  26 #include "BufferView.h"
  27 #include "bufferview_funcs.h"
  28 #include "Cursor.h"
  29 #include "CoordCache.h"
  30 #include "CutAndPaste.h"
  31 #include "debug.h"
  32 #include "DispatchResult.h"
  33 #include "ErrorList.h"
  34 #include "factory.h"
  35 #include "FuncRequest.h"
  36 #include "gettext.h"
  37 #include "Intl.h"
  38 #include "Language.h"
  39 #include "LyXAction.h"
  40 #include "LyXFunc.h"
  41 #include "Lexer.h"
  42 #include "LyXRC.h"
  43 #include "Row.h"
  44 #include "Paragraph.h"
  45 #include "paragraph_funcs.h"
  46 #include "ParagraphParameters.h"
  47 #include "Undo.h"
  48 #include "VSpace.h"
  49 #include "ParIterator.h"
  50
  51 #include "frontends/Clipboard.h"
  52 #include "frontends/Selection.h"
  53
  54 #include "insets/InsetCommand.h"
  55 #include "insets/InsetFloatList.h"
  56 #include "insets/InsetNewline.h"
  57 #include "insets/InsetQuotes.h"
  58 #include "insets/InsetSpecialChar.h"
  59 #include "insets/InsetText.h"
  60
  61 #include "support/lstrings.h"
  62 #include "support/lyxlib.h"
  63 #include "support/convert.h"
  64 #include "support/lyxtime.h"
  65
  66 #include "mathed/InsetMathHull.h"
  67 #include "mathed/MathMacroTemplate.h"
  68
  69 #include <boost/current_function.hpp>
  70
  71 #include <clocale>
  72 #include <sstream>
  73
  74
  75 namespace lyx {
  76
  77 using cap::copySelection;
  78 using cap::cutSelection;
  79 using cap::pasteFromStack;
  80 using cap::pasteClipboard;
  81 using cap::replaceSelection;
  82 using cap::saveSelection;
  83
  84 using support::isStrUnsignedInt;
  85 using support::token;
  86
  87 using std::endl;
  88 using std::string;
  89 using std::istringstream;
  90 using std::ostringstream;
  91
  92
  93 extern string current_layout;
  94
  95
  96 namespace {
  97
  98         // globals...
  99         Font freefont(Font::ALL_IGNORE);
 100         bool toggleall = false;
 101
 102         void toggleAndShow(Cursor & cur, Text * text,
 103                 Font const & font, bool toggleall = true)
 104         {
 105                 text->toggleFree(cur, font, toggleall);
 106
 107                 if (font.language() != ignore_language ||
 108                                 font.number() != Font::IGNORE) {
 109                         Paragraph & par = cur.paragraph();
 110                         if (cur.boundary() != text->isRTLBoundary(cur.buffer(), par,
 111                                                 cur.pos(), text->real_current_font))
 112                                 text->setCursor(cur, cur.pit(), cur.pos(),
 113                                                 false, !cur.boundary());
 114                 }
 115         }
 116
 117
 118         void moveCursor(Cursor & cur, bool selecting)
 119         {
 120                 if (selecting || cur.mark())
 121                         cur.setSelection();
 122         }
 123
 124
 125         void finishChange(Cursor & cur, bool selecting)
 126         {
 127                 finishUndo();
 128                 moveCursor(cur, selecting);
 129         }
 130
 131
 132         void mathDispatch(Cursor & cur, FuncRequest const & cmd, bool display)
 133         {
 134                 recordUndo(cur);
 135                 docstring sel = cur.selectionAsString(false);
 136
 137                 // It may happen that sel is empty but there is a selection
 138                 replaceSelection(cur);
 139
 140                 if (sel.empty()) {
 141 #ifdef ENABLE_ASSERTIONS
 142                         const int old_pos = cur.pos();
 143 #endif
 144                         cur.insert(new InsetMathHull(hullSimple));
 145                         BOOST_ASSERT(old_pos == cur.pos());
 146                         cur.nextInset()->edit(cur, true);
 147                         // don't do that also for LFUN_MATH_MODE
 148                         // unless you want end up with always changing
 149                         // to mathrm when opening an inlined inset --
 150                         // I really hate "LyXfunc overloading"...
 151                         if (display)
 152                                 cur.dispatch(FuncRequest(LFUN_MATH_DISPLAY));
 153                         // Avoid an unnecessary undo step if cmd.argument
 154                         // is empty
 155                         if (!cmd.argument().empty())
 156                                 cur.dispatch(FuncRequest(LFUN_MATH_INSERT,
 157                                                          cmd.argument()));
 158                 } else {
 159                         // create a macro if we see "\\newcommand"
 160                         // somewhere, and an ordinary formula
 161                         // otherwise
 162                         if (sel.find(from_ascii("\\newcommand")) == string::npos
 163                             && sel.find(from_ascii("\\def")) == string::npos)
 164                         {
 165                                 InsetMathHull * formula = new InsetMathHull;
 166                                 istringstream is(to_utf8(sel));
 167                                 Lexer lex(0, 0);
 168                                 lex.setStream(is);
 169                                 formula->read(cur.buffer(), lex);
 170                                 if (formula->getType() == hullNone)
 171                                         // Don't create pseudo formulas if
 172                                         // delimiters are left out
 173                                         formula->mutate(hullSimple);
 174                                 cur.insert(formula);
 175                         } else {
 176                                 cur.insert(new MathMacroTemplate(sel));
 177                         }
 178                 }
 179                 cur.message(from_utf8(N_("Math editor mode")));
 180         }
 181
 182 } // namespace anon
 183
 184
 185
 186 namespace bv_funcs {
 187
 188 string const freefont2string()
 189 {
 190         string data;
 191         if (font2string(freefont, toggleall, data))
 192                 return data;
 193         return string();
 194 }
 195
 196 }
 197
 198 void Text::cursorPrevious(Cursor & cur)
 199 {
 200         pos_type cpos = cur.pos();
 201         pit_type cpar = cur.pit();
 202
 203         int x = cur.x_target();
 204         setCursorFromCoordinates(cur, x, 0);
 205         cur.dispatch(FuncRequest(cur.selection()? LFUN_UP_SELECT: LFUN_UP));
 206
 207         if (cpar == cur.pit() && cpos == cur.pos())
 208                 // we have a row which is taller than the workarea. The
 209                 // simplest solution is to move to the previous row instead.
 210                 cur.dispatch(FuncRequest(cur.selection()? LFUN_UP_SELECT: LFUN_UP));
 211
 212         finishUndo();
 213         cur.updateFlags(Update::Force | Update::FitCursor);
 214 }
 215
 216
 217 void Text::cursorNext(Cursor & cur)
 218 {
 219         pos_type cpos = cur.pos();
 220         pit_type cpar = cur.pit();
 221
 222         int x = cur.x_target();
 223         setCursorFromCoordinates(cur, x, cur.bv().workHeight() - 1);
 224         cur.dispatch(FuncRequest(cur.selection()? LFUN_DOWN_SELECT: LFUN_DOWN));
 225
 226         if (cpar == cur.pit() && cpos == cur.pos())
 227                 // we have a row which is taller than the workarea. The
 228                 // simplest solution is to move to the next row instead.
 229                 cur.dispatch(
 230                         FuncRequest(cur.selection()? LFUN_DOWN_SELECT: LFUN_DOWN));
 231
 232         finishUndo();
 233         cur.updateFlags(Update::Force | Update::FitCursor);
 234 }
 235
 236
 237 namespace {
 238
 239 void specialChar(Cursor & cur, InsetSpecialChar::Kind kind)
 240 {
 241         recordUndo(cur);
 242         cap::replaceSelection(cur);
 243         cur.insert(new InsetSpecialChar(kind));
 244         cur.posRight();
 245 }
 246
 247
 248 bool doInsertInset(Cursor & cur, Text * text,
 249         FuncRequest const & cmd, bool edit, bool pastesel)
 250 {
 251         Inset * inset = createInset(&cur.bv(), cmd);
 252         if (!inset)
 253                 return false;
 254
 255         recordUndo(cur);
 256         bool gotsel = false;
 257         if (cur.selection()) {
 258                 lyx::dispatch(FuncRequest(LFUN_CUT));
 259                 gotsel = true;
 260         }
 261         text->insertInset(cur, inset);
 262
 263         if (edit)
 264                 inset->edit(cur, true);
 265
 266         if (gotsel && pastesel) {
 267                 lyx::dispatch(FuncRequest(LFUN_PASTE, "0"));
 268                 // reset first par to default
 269                 if (cur.lastpit() != 0 || cur.lastpos() != 0) {
 270                         Layout_ptr const layout =
 271                                 cur.buffer().params().getTextClass().defaultLayout();
 272                         cur.text()->paragraphs().begin()->layout(layout);
 273                 }
 274         }
 275         return true;
 276 }
 277
 278
 279 } // anon namespace
 280
 281
 282 void Text::number(Cursor & cur)
 283 {
 284         Font font(Font::ALL_IGNORE);
 285         font.setNumber(Font::TOGGLE);
 286         toggleAndShow(cur, this, font);
 287 }
 288
 289
 290 bool Text::isRTL(Buffer const & buffer, Paragraph const & par) const
 291 {
 292         return par.isRightToLeftPar(buffer.params());
 293 }
 294
 295
 296 bool Text::isRTL(Buffer const & buffer, CursorSlice const & sl, bool boundary) const
 297 {
 298         if (!lyxrc.rtl_support && !sl.text())
 299                 return false;
 300
 301         int correction = 0;
 302         if (boundary && sl.pos() > 0)
 303                 correction = -1;
 304
 305         Paragraph const & par = getPar(sl.pit());
 306         return getFont(buffer, par, sl.pos() + correction).isVisibleRightToLeft();
 307 }
 308
 309
 310 bool Text::isRTLBoundary(Buffer const & buffer, Paragraph const & par,
 311                          pos_type pos) const
 312 {
 313         if (!lyxrc.rtl_support)
 314                 return false;
 315
 316         // no RTL boundary at line start
 317         if (pos == 0)
 318                 return false;
 319
 320         bool left = getFont(buffer, par, pos - 1).isVisibleRightToLeft();
 321         bool right;
 322         if (pos == par.size())
 323                 right = par.isRightToLeftPar(buffer.params());
 324         else
 325                 right = getFont(buffer, par, pos).isVisibleRightToLeft();
 326         return left != right;
 327 }
 328
 329
 330 bool Text::isRTLBoundary(Buffer const & buffer, Paragraph const & par,
 331                          pos_type pos, Font const & font) const
 332 {
 333         if (!lyxrc.rtl_support)
 334                 return false;
 335
 336         bool left = font.isVisibleRightToLeft();
 337         bool right;
 338         if (pos == par.size())
 339                 right = par.isRightToLeftPar(buffer.params());
 340         else
 341                 right = getFont(buffer, par, pos).isVisibleRightToLeft();
 342         return left != right;
 343 }
 344
 345
 346 void Text::dispatch(Cursor & cur, FuncRequest & cmd)
 347 {
 348         LYXERR(Debug::ACTION) << "Text::dispatch: cmd: " << cmd << endl;
 349
 350         // FIXME: We use the update flag to indicates wether a singlePar or a
 351         // full screen update is needed. We reset it here but shall we restore it
 352         // at the end?
 353         cur.noUpdate();
 354
 355         BOOST_ASSERT(cur.text() == this);
 356         BufferView * bv = &cur.bv();
 357         CursorSlice oldTopSlice = cur.top();
 358         bool oldBoundary = cur.boundary();
 359         bool sel = cur.selection();
 360         // Signals that, even if needsUpdate == false, an update of the
 361         // cursor paragraph is required
 362         bool singleParUpdate = lyxaction.funcHasFlag(cmd.action,
 363                 LyXAction::SingleParUpdate);
 364         // Signals that a full-screen update is required
 365         bool needsUpdate = !(lyxaction.funcHasFlag(cmd.action,
 366                 LyXAction::NoUpdate) || singleParUpdate);
 367         // Remember the old paragraph metric (_outer_ paragraph!)
 368         ParagraphMetrics const & pm = cur.bv().parMetrics(
 369                 cur.bottom().text(), cur.bottom().pit());
 370         Dimension olddim = pm.dim();
 371
 372         switch (cmd.action) {
 373
 374         case LFUN_PARAGRAPH_MOVE_DOWN: {
 375                 pit_type const pit = cur.pit();
 376                 recUndo(cur, pit, pit + 1);
 377                 finishUndo();
 378                 std::swap(pars_[pit], pars_[pit + 1]);
 379
 380                 ParIterator begin(cur);
 381                 // begin.pos() (== cur.pos()) may point beyond the end of the
 382                 // paragraph referenced by begin. This would cause a crash
 383                 // in updateLabels()
 384                 begin.pos() = 0;
 385                 ++cur.pit();
 386                 ParIterator end = boost::next(ParIterator(cur));
 387                 updateLabels(cur.buffer(), begin, end);
 388
 389                 needsUpdate = true;
 390                 break;
 391         }
 392
 393         case LFUN_PARAGRAPH_MOVE_UP: {
 394                 pit_type const pit = cur.pit();
 395                 recUndo(cur, pit - 1, pit);
 396                 finishUndo();
 397                 std::swap(pars_[pit], pars_[pit - 1]);
 398
 399                 ParIterator end = ParIterator(cur);
 400                 // end.pos() (== cur.pos()) may point beyond the end of the
 401                 // paragraph referenced by end. This would cause a crash
 402                 // in boost::next()
 403                 end.pos() = 0;
 404                 end = boost::next(end);
 405                 --cur.pit();
 406                 ParIterator begin(cur);
 407                 updateLabels(cur.buffer(), begin, end);
 408
 409                 needsUpdate = true;
 410                 break;
 411         }
 412
 413         case LFUN_APPENDIX: {
 414                 Paragraph & par = cur.paragraph();
 415                 bool start = !par.params().startOfAppendix();
 416
 417 #ifdef WITH_WARNINGS
 418 #warning The code below only makes sense at top level.
 419 // Should LFUN_APPENDIX be restricted to top-level paragraphs?
 420 #endif
 421                 // ensure that we have only one start_of_appendix in this document
 422                 for (pit_type tmp = 0, end = pars_.size(); tmp != end; ++tmp) {
 423                         if (pars_[tmp].params().startOfAppendix()) {
 424                                 recUndo(cur, tmp);
 425                                 pars_[tmp].params().startOfAppendix(false);
 426                                 break;
 427                         }
 428                 }
 429
 430                 recordUndo(cur);
 431                 par.params().startOfAppendix(start);
 432
 433                 // we can set the refreshing parameters now
 434                 updateLabels(cur.buffer());
 435                 break;
 436         }
 437
 438         case LFUN_WORD_DELETE_FORWARD:
 439                 cur.clearSelection();
 440                 deleteWordForward(cur);
 441                 finishChange(cur, false);
 442                 break;
 443
 444         case LFUN_WORD_DELETE_BACKWARD:
 445                 cur.clearSelection();
 446                 deleteWordBackward(cur);
 447                 finishChange(cur, false);
 448                 break;
 449
 450         case LFUN_LINE_DELETE:
 451                 cur.clearSelection();
 452                 deleteLineForward(cur);
 453                 finishChange(cur, false);
 454                 break;
 455
 456         case LFUN_BUFFER_BEGIN:
 457         case LFUN_BUFFER_BEGIN_SELECT:
 458                 needsUpdate |= cur.selHandle(cmd.action == LFUN_BUFFER_BEGIN_SELECT);
 459                 if (cur.depth() == 1) {
 460                         needsUpdate |= cursorTop(cur);
 461                 } else {
 462                         cur.undispatched();
 463                 }
 464                 break;
 465
 466         case LFUN_BUFFER_END:
 467         case LFUN_BUFFER_END_SELECT:
 468                 needsUpdate |= cur.selHandle(cmd.action == LFUN_BUFFER_END_SELECT);
 469                 if (cur.depth() == 1) {
 470                         needsUpdate |= cursorBottom(cur);
 471                 } else {
 472                         cur.undispatched();
 473                 }
 474                 break;
 475
 476         case LFUN_CHAR_FORWARD:
 477         case LFUN_CHAR_FORWARD_SELECT:
 478                 //lyxerr << BOOST_CURRENT_FUNCTION
 479                 //       << " LFUN_CHAR_FORWARD[SEL]:\n" << cur << endl;
 480                 needsUpdate |= cur.selHandle(cmd.action == LFUN_CHAR_FORWARD_SELECT);
 481                 if (reverseDirectionNeeded(cur))
 482                         needsUpdate |= cursorLeft(cur);
 483                 else
 484                         needsUpdate |= cursorRight(cur);
 485
 486                 if (!needsUpdate && oldTopSlice == cur.top()
 487                                 && cur.boundary() == oldBoundary) {
 488                         cur.undispatched();
 489                         cmd = FuncRequest(LFUN_FINISHED_RIGHT);
 490                 }
 491                 break;
 492
 493         case LFUN_CHAR_BACKWARD:
 494         case LFUN_CHAR_BACKWARD_SELECT:
 495                 //lyxerr << "handle LFUN_CHAR_BACKWARD[_SELECT]:\n" << cur << endl;
 496                 needsUpdate |= cur.selHandle(cmd.action == LFUN_CHAR_BACKWARD_SELECT);
 497                 if (reverseDirectionNeeded(cur))
 498                         needsUpdate |= cursorRight(cur);
 499                 else
 500                         needsUpdate |= cursorLeft(cur);
 501
 502                 if (!needsUpdate && oldTopSlice == cur.top()
 503                         && cur.boundary() == oldBoundary) {
 504                         cur.undispatched();
 505                         cmd = FuncRequest(LFUN_FINISHED_LEFT);
 506                 }
 507                 break;
 508
 509         case LFUN_UP_SELECT:
 510         case LFUN_DOWN_SELECT:
 511         case LFUN_UP:
 512         case LFUN_DOWN: {
 513                 // stop/start the selection
 514                 bool select = cmd.action == LFUN_DOWN_SELECT ||
 515                         cmd.action == LFUN_UP_SELECT;
 516                 cur.selHandle(select);
 517
 518                 // move cursor up/down
 519                 bool up = cmd.action == LFUN_UP_SELECT || cmd.action == LFUN_UP;
 520                 bool const successful = cur.upDownInText(up, needsUpdate);
 521                 if (successful) {
 522                         // notify insets which were left and get their update flags
 523                         notifyCursorLeaves(cur.beforeDispatchCursor(), cur);
 524                         cur.fixIfBroken();
 525
 526                         // redraw if you leave mathed (for the decorations)
 527                         needsUpdate |= cur.beforeDispatchCursor().inMathed();
 528                 } else
 529                         cur.undispatched();
 530
 531                 break;
 532         }
 533
 534         case LFUN_PARAGRAPH_UP:
 535         case LFUN_PARAGRAPH_UP_SELECT:
 536                 needsUpdate |= cur.selHandle(cmd.action == LFUN_PARAGRAPH_UP_SELECT);
 537                 needsUpdate |= cursorUpParagraph(cur);
 538                 break;
 539
 540         case LFUN_PARAGRAPH_DOWN:
 541         case LFUN_PARAGRAPH_DOWN_SELECT:
 542                 needsUpdate |= cur.selHandle(cmd.action == LFUN_PARAGRAPH_DOWN_SELECT);
 543                 needsUpdate |= cursorDownParagraph(cur);
 544                 break;
 545
 546         case LFUN_SCREEN_UP:
 547         case LFUN_SCREEN_UP_SELECT:
 548                 needsUpdate |= cur.selHandle(cmd.action == LFUN_SCREEN_UP_SELECT);
 549                 if (cur.pit() == 0 && cur.textRow().pos() == 0)
 550                         cur.undispatched();
 551                 else {
 552                         cursorPrevious(cur);
 553                 }
 554                 break;
 555
 556         case LFUN_SCREEN_DOWN:
 557         case LFUN_SCREEN_DOWN_SELECT:
 558                 needsUpdate |= cur.selHandle(cmd.action == LFUN_SCREEN_DOWN_SELECT);
 559                 if (cur.pit() == cur.lastpit()
 560                           && cur.textRow().endpos() == cur.lastpos())
 561                         cur.undispatched();
 562                 else {
 563                         cursorNext(cur);
 564                 }
 565                 break;
 566
 567         case LFUN_LINE_BEGIN:
 568         case LFUN_LINE_BEGIN_SELECT:
 569                 needsUpdate |= cur.selHandle(cmd.action == LFUN_LINE_BEGIN_SELECT);
 570                 needsUpdate |= cursorHome(cur);
 571                 break;
 572
 573         case LFUN_LINE_END:
 574         case LFUN_LINE_END_SELECT:
 575                 needsUpdate |= cur.selHandle(cmd.action == LFUN_LINE_END_SELECT);
 576                 needsUpdate |= cursorEnd(cur);
 577                 break;
 578
 579         case LFUN_WORD_FORWARD:
 580         case LFUN_WORD_FORWARD_SELECT:
 581                 needsUpdate |= cur.selHandle(cmd.action == LFUN_WORD_FORWARD_SELECT);
 582                 if (reverseDirectionNeeded(cur))
 583                         needsUpdate |= cursorLeftOneWord(cur);
 584                 else
 585                         needsUpdate |= cursorRightOneWord(cur);
 586                 break;
 587
 588         case LFUN_WORD_BACKWARD:
 589         case LFUN_WORD_BACKWARD_SELECT:
 590                 needsUpdate |= cur.selHandle(cmd.action == LFUN_WORD_BACKWARD_SELECT);
 591                 if (reverseDirectionNeeded(cur))
 592                         needsUpdate |= cursorRightOneWord(cur);
 593                 else
 594                         needsUpdate |= cursorLeftOneWord(cur);
 595                 break;
 596
 597         case LFUN_WORD_SELECT: {
 598                 selectWord(cur, WHOLE_WORD);
 599                 finishChange(cur, true);
 600                 break;
 601         }
 602
 603         case LFUN_BREAK_LINE: {
 604                 // Not allowed by LaTeX (labels or empty par)
 605                 if (cur.pos() > cur.paragraph().beginOfBody()) {
 606                         // this avoids a double undo
 607                         // FIXME: should not be needed, ideally
 608                         if (!cur.selection())
 609                                 recordUndo(cur);
 610                         cap::replaceSelection(cur);
 611                         cur.insert(new InsetNewline);
 612                         cur.posRight();
 613                         moveCursor(cur, false);
 614                 }
 615                 break;
 616         }
 617
 618         case LFUN_CHAR_DELETE_FORWARD:
 619                 if (!cur.selection()) {
 620                         if (cur.pos() == cur.paragraph().size())
 621                                 // Par boundary, force full-screen update
 622                                 singleParUpdate = false;
 623                         needsUpdate |= erase(cur);
 624                         cur.resetAnchor();
 625                         // It is possible to make it a lot faster still
 626                         // just comment out the line below...
 627                 } else {
 628                         cutSelection(cur, true, false);
 629                         singleParUpdate = false;
 630                 }
 631                 moveCursor(cur, false);
 632                 break;
 633
 634         case LFUN_DELETE_FORWARD_SKIP:
 635                 // Reverse the effect of LFUN_BREAK_PARAGRAPH_SKIP.
 636                 if (!cur.selection()) {
 637                         if (cur.pos() == cur.lastpos()) {
 638                                 cursorRight(cur);
 639                                 cursorLeft(cur);
 640                         }
 641                         erase(cur);
 642                         cur.resetAnchor();
 643                 } else {
 644                         cutSelection(cur, true, false);
 645                 }
 646                 break;
 647
 648
 649         case LFUN_CHAR_DELETE_BACKWARD:
 650                 if (!cur.selection()) {
 651                         if (bv->getIntl().getTransManager().backspace()) {
 652                                 // Par boundary, full-screen update
 653                                 if (cur.pos() == 0)
 654                                         singleParUpdate = false;
 655                                 needsUpdate |= backspace(cur);
 656                                 cur.resetAnchor();
 657                                 // It is possible to make it a lot faster still
 658                                 // just comment out the line below...
 659                         }
 660                 } else {
 661                         cutSelection(cur, true, false);
 662                         singleParUpdate = false;
 663                 }
 664                 break;
 665
 666         case LFUN_DELETE_BACKWARD_SKIP:
 667                 // Reverse the effect of LFUN_BREAK_PARAGRAPH_SKIP.
 668                 if (!cur.selection()) {
 669 #ifdef WITH_WARNINGS
 670 #warning look here
 671 #endif
 672                         //CursorSlice cur = cursor();
 673                         backspace(cur);
 674                         //anchor() = cur;
 675                 } else {
 676                         cutSelection(cur, true, false);
 677                 }
 678                 break;
 679
 680         case LFUN_BREAK_PARAGRAPH:
 681                 cap::replaceSelection(cur);
 682                 breakParagraph(cur, 0);
 683                 cur.resetAnchor();
 684                 break;
 685
 686         case LFUN_BREAK_PARAGRAPH_KEEP_LAYOUT:
 687                 cap::replaceSelection(cur);
 688                 breakParagraph(cur, 1);
 689                 cur.resetAnchor();
 690                 break;
 691
 692         case LFUN_BREAK_PARAGRAPH_SKIP: {
 693                 // When at the beginning of a paragraph, remove
 694                 // indentation.  Otherwise, do the same as LFUN_BREAK_PARAGRAPH.
 695                 cap::replaceSelection(cur);
 696                 if (cur.pos() == 0)
 697                         cur.paragraph().params().labelWidthString(docstring());
 698                 else
 699                         breakParagraph(cur, 0);
 700                 cur.resetAnchor();
 701                 break;
 702         }
 703
 704         case LFUN_PARAGRAPH_SPACING: {
 705                 Paragraph & par = cur.paragraph();
 706                 Spacing::Space cur_spacing = par.params().spacing().getSpace();
 707                 string cur_value = "1.0";
 708                 if (cur_spacing == Spacing::Other)
 709                         cur_value = par.params().spacing().getValueAsString();
 710
 711                 istringstream is(to_utf8(cmd.argument()));
 712                 string tmp;
 713                 is >> tmp;
 714                 Spacing::Space new_spacing = cur_spacing;
 715                 string new_value = cur_value;
 716                 if (tmp.empty()) {
 717                         lyxerr << "Missing argument to `paragraph-spacing'"
 718                                << endl;
 719                 } else if (tmp == "single") {
 720                         new_spacing = Spacing::Single;
 721                 } else if (tmp == "onehalf") {
 722                         new_spacing = Spacing::Onehalf;
 723                 } else if (tmp == "double") {
 724                         new_spacing = Spacing::Double;
 725                 } else if (tmp == "other") {
 726                         new_spacing = Spacing::Other;
 727                         string tmpval = "0.0";
 728                         is >> tmpval;
 729                         lyxerr << "new_value = " << tmpval << endl;
 730                         if (tmpval != "0.0")
 731                                 new_value = tmpval;
 732                 } else if (tmp == "default") {
 733                         new_spacing = Spacing::Default;
 734                 } else {
 735                         lyxerr << to_utf8(_("Unknown spacing argument: "))
 736                                << to_utf8(cmd.argument()) << endl;
 737                 }
 738                 if (cur_spacing != new_spacing || cur_value != new_value)
 739                         par.params().spacing(Spacing(new_spacing, new_value));
 740                 break;
 741         }
 742
 743         case LFUN_INSET_INSERT: {
 744                 recordUndo(cur);
 745                 Inset * inset = createInset(bv, cmd);
 746                 if (inset) {
 747                         // FIXME (Abdel 01/02/2006):
 748                         // What follows would be a partial fix for bug 2154:
 749                         //   http://bugzilla.lyx.org/show_bug.cgi?id=2154
 750                         // This automatically put the label inset _after_ a
 751                         // numbered section. It should be possible to extend the mechanism
 752                         // to any kind of LateX environement.
 753                         // The correct way to fix that bug would be at LateX generation.
 754                         // I'll let the code here for reference as it could be used for some
 755                         // other feature like "automatic labelling".
 756                         /*
 757                         Paragraph & par = pars_[cur.pit()];
 758                         if (inset->lyxCode() == Inset::LABEL_CODE
 759                                 && par.layout()->labeltype == LABEL_COUNTER) {
 760                                 // Go to the end of the paragraph
 761                                 // Warning: Because of Change-Tracking, the last
 762                                 // position is 'size()' and not 'size()-1':
 763                                 cur.pos() = par.size();
 764                                 // Insert a new paragraph
 765                                 FuncRequest fr(LFUN_BREAK_PARAGRAPH);
 766                                 dispatch(cur, fr);
 767                         }
 768                         */
 769                         insertInset(cur, inset);
 770                         cur.posRight();
 771                 }
 772                 break;
 773         }
 774
 775         case LFUN_INSET_DISSOLVE:
 776                 needsUpdate |= dissolveInset(cur);
 777                 break;
 778
 779         case LFUN_INSET_SETTINGS:
 780                 cur.inset().showInsetDialog(bv);
 781                 break;
 782
 783         case LFUN_SPACE_INSERT:
 784                 if (cur.paragraph().layout()->free_spacing)
 785                         insertChar(cur, ' ');
 786                 else {
 787                         doInsertInset(cur, this, cmd, false, false);
 788                         cur.posRight();
 789                 }
 790                 moveCursor(cur, false);
 791                 break;
 792
 793         case LFUN_HYPHENATION_POINT_INSERT:
 794                 specialChar(cur, InsetSpecialChar::HYPHENATION);
 795                 break;
 796
 797         case LFUN_LIGATURE_BREAK_INSERT:
 798                 specialChar(cur, InsetSpecialChar::LIGATURE_BREAK);
 799                 break;
 800
 801         case LFUN_DOTS_INSERT:
 802                 specialChar(cur, InsetSpecialChar::LDOTS);
 803                 break;
 804
 805         case LFUN_END_OF_SENTENCE_PERIOD_INSERT:
 806                 specialChar(cur, InsetSpecialChar::END_OF_SENTENCE);
 807                 break;
 808
 809         case LFUN_MENU_SEPARATOR_INSERT:
 810                 specialChar(cur, InsetSpecialChar::MENU_SEPARATOR);
 811                 break;
 812
 813         case LFUN_WORD_UPCASE:
 814                 changeCase(cur, Text::text_uppercase);
 815                 break;
 816
 817         case LFUN_WORD_LOWCASE:
 818                 changeCase(cur, Text::text_lowercase);
 819                 break;
 820
 821         case LFUN_WORD_CAPITALIZE:
 822                 changeCase(cur, Text::text_capitalization);
 823                 break;
 824
 825         case LFUN_CHARS_TRANSPOSE:
 826                 charsTranspose(cur);
 827                 break;
 828
 829         case LFUN_PASTE:
 830                 cur.message(_("Paste"));
 831                 cap::replaceSelection(cur);
 832                 if (cmd.argument().empty() && !theClipboard().isInternal())
 833                         pasteClipboard(cur, bv->buffer()->errorList("Paste"));
 834                 else {
 835                         string const arg(to_utf8(cmd.argument()));
 836                         pasteFromStack(cur, bv->buffer()->errorList("Paste"),
 837                                         isStrUnsignedInt(arg) ?
 838                                                 convert<unsigned int>(arg) :
 839                                                 0);
 840                 }
 841                 bv->buffer()->errors("Paste");
 842                 cur.clearSelection(); // bug 393
 843                 finishUndo();
 844                 break;
 845
 846         case LFUN_CUT:
 847                 cutSelection(cur, true, true);
 848                 cur.message(_("Cut"));
 849                 break;
 850
 851         case LFUN_COPY:
 852                 copySelection(cur);
 853                 cur.message(_("Copy"));
 854                 break;
 855
 856         case LFUN_SERVER_GET_XY:
 857                 cur.message(from_utf8(
 858                         convert<string>(cursorX(cur.bv(), cur.top(), cur.boundary()))
 859                         + ' ' + convert<string>(cursorY(cur.bv(), cur.top(), cur.boundary()))));
 860                 break;
 861
 862         case LFUN_SERVER_SET_XY: {
 863                 int x = 0;
 864                 int y = 0;
 865                 istringstream is(to_utf8(cmd.argument()));
 866                 is >> x >> y;
 867                 if (!is)
 868                         lyxerr << "SETXY: Could not parse coordinates in '"
 869                                << to_utf8(cmd.argument()) << std::endl;
 870                 else
 871                         setCursorFromCoordinates(cur, x, y);
 872                 break;
 873         }
 874
 875         case LFUN_SERVER_GET_FONT:
 876                 if (current_font.shape() == Font::ITALIC_SHAPE)
 877                         cur.message(from_ascii("E"));
 878                 else if (current_font.shape() == Font::SMALLCAPS_SHAPE)
 879                         cur.message(from_ascii("N"));
 880                 else
 881                         cur.message(from_ascii("0"));
 882                 break;
 883
 884         case LFUN_SERVER_GET_LAYOUT:
 885                 cur.message(from_utf8(cur.paragraph().layout()->name()));
 886                 break;
 887
 888         case LFUN_LAYOUT: {
 889                 string layout = to_ascii(cmd.argument());
 890                 LYXERR(Debug::INFO) << "LFUN_LAYOUT: (arg) " << layout << endl;
 891
 892                 // Derive layout number from given argument (string)
 893                 // and current buffer's textclass (number)
 894                 TextClass const & tclass = bv->buffer()->params().getTextClass();
 895                 if (layout.empty())
 896                         layout = tclass.defaultLayoutName();
 897                 bool hasLayout = tclass.hasLayout(layout);
 898
 899                 // If the entry is obsolete, use the new one instead.
 900                 if (hasLayout) {
 901                         string const & obs = tclass[layout]->obsoleted_by();
 902                         if (!obs.empty())
 903                                 layout = obs;
 904                 }
 905
 906                 if (!hasLayout) {
 907                         cur.errorMessage(from_utf8(N_("Layout ")) + cmd.argument() +
 908                                 from_utf8(N_(" not known")));
 909                         break;
 910                 }
 911
 912                 bool change_layout = (current_layout != layout);
 913
 914                 if (!change_layout && cur.selection() &&
 915                         cur.selBegin().pit() != cur.selEnd().pit())
 916                 {
 917                         pit_type spit = cur.selBegin().pit();
 918                         pit_type epit = cur.selEnd().pit() + 1;
 919                         while (spit != epit) {
 920                                 if (pars_[spit].layout()->name() != current_layout) {
 921                                         change_layout = true;
 922                                         break;
 923                                 }
 924                                 ++spit;
 925                         }
 926                 }
 927
 928                 if (change_layout) {
 929                         setLayout(cur, layout);
 930                         // inform the GUI that the layout has changed.
 931                         bv->layoutChanged(layout);
 932                 }
 933                 break;
 934         }
 935
 936         case LFUN_CLIPBOARD_PASTE:
 937                 cur.clearSelection();
 938                 pasteClipboard(cur, bv->buffer()->errorList("Paste"),
 939                                cmd.argument() == "paragraph");
 940                 bv->buffer()->errors("Paste");
 941                 break;
 942
 943         case LFUN_PRIMARY_SELECTION_PASTE:
 944                 pasteString(cur, theSelection().get(),
 945                             cmd.argument() == "paragraph");
 946                 break;
 947
 948         case LFUN_UNICODE_INSERT: {
 949                 if (cmd.argument().empty())
 950                         break;
 951                 docstring hexstring = cmd.argument();
 952                 if (lyx::support::isHex(hexstring)) {
 953                         char_type c = lyx::support::hexToInt(hexstring);
 954                         if (c >= 32 && c < 0x10ffff) {
 955                                 lyxerr << "Inserting c: " << c << endl;
 956                                 docstring s = docstring(1, c);
 957                                 lyx::dispatch(FuncRequest(LFUN_SELF_INSERT, s));
 958                         }
 959                 }
 960                 break;
 961         }
 962
 963         case LFUN_QUOTE_INSERT: {
 964                 Paragraph & par = cur.paragraph();
 965                 pos_type pos = cur.pos();
 966                 BufferParams const & bufparams = bv->buffer()->params();
 967                 Layout_ptr const & style = par.layout();
 968                 if (!style->pass_thru
 969                     && par.getFontSettings(bufparams, pos).language()->lang() != "hebrew") {
 970                         // this avoids a double undo
 971                         // FIXME: should not be needed, ideally
 972                         if (!cur.selection())
 973                                 recordUndo(cur);
 974                         cap::replaceSelection(cur);
 975                         pos = cur.pos();
 976                         char_type c;
 977                         if (pos == 0)
 978                                 c = ' ';
 979                         else if (cur.prevInset() && cur.prevInset()->isSpace())
 980                                 c = ' ';
 981                         else
 982                                 c = par.getChar(pos - 1);
 983                         string arg = to_utf8(cmd.argument());
 984                         if (arg == "single")
 985                                 cur.insert(new InsetQuotes(c,
 986                                     bufparams.quotes_language,
 987                                     InsetQuotes::SingleQ));
 988                         else
 989                                 cur.insert(new InsetQuotes(c,
 990                                     bufparams.quotes_language,
 991                                     InsetQuotes::DoubleQ));
 992                         cur.posRight();
 993                 }
 994                 else
 995                         lyx::dispatch(FuncRequest(LFUN_SELF_INSERT, "\""));
 996                 break;
 997         }
 998
 999         case LFUN_DATE_INSERT:
1000                 if (cmd.argument().empty())
1001                         lyx::dispatch(FuncRequest(LFUN_SELF_INSERT,
1002                                 formatted_time(current_time())));
1003                 else
1004                         lyx::dispatch(FuncRequest(LFUN_SELF_INSERT,
1005                                 formatted_time(current_time(), to_utf8(cmd.argument()))));
1006                 break;
1007
1008         case LFUN_MOUSE_TRIPLE:
1009                 if (cmd.button() == mouse_button::button1) {
1010                         cursorHome(cur);
1011                         cur.resetAnchor();
1012                         cursorEnd(cur);
1013                         cur.setSelection();
1014                         bv->cursor() = cur;
1015                 }
1016                 break;
1017
1018         case LFUN_MOUSE_DOUBLE:
1019                 if (cmd.button() == mouse_button::button1) {
1020                         selectWord(cur, WHOLE_WORD_STRICT);
1021                         bv->cursor() = cur;
1022                 }
1023                 break;
1024
1025         // Single-click on work area
1026         case LFUN_MOUSE_PRESS: {
1027                 // Right click on a footnote flag opens float menu
1028                 if (cmd.button() == mouse_button::button3)
1029                         cur.clearSelection();
1030
1031                 // Middle button press pastes if we have a selection
1032                 // We do this here as if the selection was inside an inset
1033                 // it could get cleared on the unlocking of the inset so
1034                 // we have to check this first
1035                 bool paste_internally = false;
1036                 if (cmd.button() == mouse_button::button2 && cap::selection()) {
1037                         // Copy the selection buffer to the clipboard
1038                         // stack, because we want it to appear in the
1039                         // "Edit->Paste recent" menu.
1040                         cap::copySelectionToStack();
1041                         paste_internally = true;
1042                 }
1043
1044                 // Insert primary selection with middle mouse
1045                 // if there is a local selection in the current buffer,
1046                 // insert this
1047                 if (cmd.button() == mouse_button::button2) {
1048                         if (paste_internally) {
1049                                 cap::pasteSelection(cur, bv->buffer()->errorList("Paste"));
1050                                 bv->buffer()->errors("Paste");
1051                                 cur.clearSelection(); // bug 393
1052                                 bv->buffer()->markDirty();
1053                                 finishUndo();
1054                         } else {
1055                                 bv->mouseSetCursor(cur);
1056                                 lyx::dispatch(FuncRequest(LFUN_PRIMARY_SELECTION_PASTE, "paragraph"));
1057                         }
1058                 }
1059
1060                 // we have to update after dePM triggered
1061                 bool update = bv->mouseSetCursor(cur);
1062
1063                 if (!update && cmd.button() == mouse_button::button1) {
1064                         needsUpdate = false;
1065                         cur.noUpdate();
1066                 }
1067
1068                 break;
1069         }
1070
1071         case LFUN_MOUSE_MOTION: {
1072                 // Only use motion with button 1
1073                 //if (cmd.button() != mouse_button::button1)
1074                 //      return false;
1075
1076                 // ignore motions deeper nested than the real anchor
1077                 Cursor & bvcur = cur.bv().cursor();
1078                 if (bvcur.anchor_.hasPart(cur)) {
1079                         CursorSlice old = bvcur.top();
1080
1081                         int const wh = bv->workHeight();
1082                         int const y = std::max(0, std::min(wh - 1, cmd.y));
1083
1084                         setCursorFromCoordinates(cur, cmd.x, y);
1085                         cur.setTargetX(cmd.x);
1086                         if (cmd.y >= wh)
1087                                 lyx::dispatch(FuncRequest(LFUN_DOWN_SELECT));
1088                         else if (cmd.y < 0)
1089                                 lyx::dispatch(FuncRequest(LFUN_UP_SELECT));
1090                         // This is to allow jumping over large insets
1091                         if (cur.top() == old) {
1092                                 if (cmd.y >= wh)
1093                                         lyx::dispatch(FuncRequest(LFUN_DOWN_SELECT));
1094                                 else if (cmd.y < 0)
1095                                         lyx::dispatch(FuncRequest(LFUN_UP_SELECT));
1096                         }
1097
1098                         if (cur.top() == old)
1099                                 cur.noUpdate();
1100                         else {
1101                                 // don't set anchor_
1102                                 bvcur.setCursor(cur);
1103                                 bvcur.selection() = true;
1104                                 //lyxerr << "MOTION: " << bv->cursor() << endl;
1105                         }
1106
1107                 } else
1108                         cur.undispatched();
1109                 break;
1110         }
1111
1112         case LFUN_MOUSE_RELEASE: {
1113                 if (cmd.button() == mouse_button::button2)
1114                         break;
1115
1116                 if (cmd.button() == mouse_button::button1) {
1117                         // if there is new selection, update persistent
1118                         // selection, otherwise, single click does not
1119                         // clear persistent selection buffer
1120                         if (cur.selection()) {
1121                                 // finish selection
1122                                 // if double click, cur is moved to the end of word by selectWord
1123                                 // but bvcur is current mouse position
1124                                 Cursor & bvcur = cur.bv().cursor();
1125                                 bvcur.selection() = true;
1126                         }
1127                         needsUpdate = false;
1128                         cur.noUpdate();
1129                 }
1130
1131                 break;
1132         }
1133
1134         case LFUN_SELF_INSERT: {
1135                 if (cmd.argument().empty())
1136                         break;
1137
1138                 // Automatically delete the currently selected
1139                 // text and replace it with what is being
1140                 // typed in now. Depends on lyxrc settings
1141                 // "auto_region_delete", which defaults to
1142                 // true (on).
1143
1144                 if (lyxrc.auto_region_delete)
1145                         if (cur.selection())
1146                                 cutSelection(cur, false, false);
1147
1148                 cur.clearSelection();
1149                 Font const old_font = real_current_font;
1150
1151                 docstring::const_iterator cit = cmd.argument().begin();
1152                 docstring::const_iterator end = cmd.argument().end();
1153                 for (; cit != end; ++cit)
1154                         bv->translateAndInsert(*cit, this, cur);
1155
1156                 cur.resetAnchor();
1157                 moveCursor(cur, false);
1158                 break;
1159         }
1160
1161         case LFUN_URL_INSERT: {
1162                 InsetCommandParams p("url");
1163                 string const data = InsetCommandMailer::params2string("url", p);
1164                 bv->showInsetDialog("url", data, 0);
1165                 break;
1166         }
1167
1168         case LFUN_HTML_INSERT: {
1169                 InsetCommandParams p("htmlurl");
1170                 string const data = InsetCommandMailer::params2string("url", p);
1171                 bv->showInsetDialog("url", data, 0);
1172                 break;
1173         }
1174
1175         case LFUN_LABEL_INSERT: {
1176                 InsetCommandParams p("label");
1177                 // Try to generate a valid label
1178                 p["name"] = (cmd.argument().empty()) ?
1179                         cur.getPossibleLabel() :
1180                         cmd.argument();
1181                 string const data = InsetCommandMailer::params2string("label", p);
1182
1183                 if (cmd.argument().empty()) {
1184                         bv->showInsetDialog("label", data, 0);
1185                 } else {
1186                         FuncRequest fr(LFUN_INSET_INSERT, data);
1187                         dispatch(cur, fr);
1188                 }
1189                 break;
1190         }
1191
1192
1193 #if 0
1194         case LFUN_LIST_INSERT:
1195         case LFUN_THEOREM_INSERT:
1196 #endif
1197         case LFUN_CAPTION_INSERT:
1198                 // Open the inset, and move the current selection
1199                 // inside it.
1200                 doInsertInset(cur, this, cmd, true, true);
1201                 cur.posRight();
1202                 updateLabels(*bv->buffer());
1203                 break;
1204         case LFUN_NOTE_INSERT:
1205         case LFUN_CHARSTYLE_INSERT:
1206         case LFUN_BOX_INSERT:
1207         case LFUN_BRANCH_INSERT:
1208         case LFUN_BIBITEM_INSERT:
1209         case LFUN_ERT_INSERT:
1210         case LFUN_LISTING_INSERT:
1211         case LFUN_FOOTNOTE_INSERT:
1212         case LFUN_MARGINALNOTE_INSERT:
1213         case LFUN_OPTIONAL_INSERT:
1214         case LFUN_ENVIRONMENT_INSERT:
1215                 // Open the inset, and move the current selection
1216                 // inside it.
1217                 doInsertInset(cur, this, cmd, true, true);
1218                 cur.posRight();
1219                 break;
1220
1221         case LFUN_TABULAR_INSERT:
1222                 // if there were no arguments, just open the dialog
1223                 if (doInsertInset(cur, this, cmd, false, true))
1224                         cur.posRight();
1225                 else
1226                         bv->showDialog("tabularcreate");
1227
1228                 break;
1229
1230         case LFUN_FLOAT_INSERT:
1231         case LFUN_FLOAT_WIDE_INSERT:
1232         case LFUN_WRAP_INSERT: {
1233                 bool content = cur.selection();  // will some text be moved into the inset?
1234
1235                 doInsertInset(cur, this, cmd, true, true);
1236                 cur.posRight();
1237                 ParagraphList & pars = cur.text()->paragraphs();
1238
1239                 TextClass const & tclass = bv->buffer()->params().getTextClass();
1240
1241                 // add a separate paragraph for the caption inset
1242                 pars.push_back(Paragraph());
1243                 pars.back().setInsetOwner(pars[0].inInset());
1244                 pars.back().layout(tclass.defaultLayout());
1245
1246                 int cap_pit = pars.size() - 1;
1247
1248                 // if an empty inset was created, we create an additional empty
1249                 // paragraph at the bottom so that the user can choose where to put
1250                 // the graphics (or table).
1251                 if (!content) {
1252                         pars.push_back(Paragraph());
1253                         pars.back().setInsetOwner(pars[0].inInset());
1254                         pars.back().layout(tclass.defaultLayout());
1255
1256                 }
1257
1258                 // reposition the cursor to the caption
1259                 cur.pit() = cap_pit;
1260                 cur.pos() = 0;
1261                 cur.dispatch(FuncRequest(LFUN_CAPTION_INSERT));
1262                 // FIXME: When leaving the Float (or Wrap) inset we should
1263                 // delete any empty paragraph left above or below the
1264                 // caption.
1265                 break;
1266         }
1267
1268         case LFUN_INDEX_INSERT:
1269         case LFUN_NOMENCL_INSERT: {
1270                 Inset * inset = createInset(&cur.bv(), cmd);
1271                 if (!inset)
1272                         break;
1273                 recordUndo(cur);
1274                 cur.clearSelection();
1275                 insertInset(cur, inset);
1276                 inset->edit(cur, true);
1277                 // Show the dialog for the nomenclature entry, since the
1278                 // description entry still needs to be filled in.
1279                 if (cmd.action == LFUN_NOMENCL_INSERT)
1280                         InsetCommandMailer("nomenclature",
1281                                 *reinterpret_cast<InsetCommand *>(inset)).showDialog(&cur.bv());
1282                 cur.posRight();
1283                 break;
1284         }
1285
1286         case LFUN_INDEX_PRINT:
1287         case LFUN_NOMENCL_PRINT:
1288         case LFUN_TOC_INSERT:
1289         case LFUN_HFILL_INSERT:
1290         case LFUN_LINE_INSERT:
1291         case LFUN_PAGEBREAK_INSERT:
1292         case LFUN_CLEARPAGE_INSERT:
1293         case LFUN_CLEARDOUBLEPAGE_INSERT:
1294                 // do nothing fancy
1295                 doInsertInset(cur, this, cmd, false, false);
1296                 cur.posRight();
1297                 break;
1298
1299         case LFUN_DEPTH_DECREMENT:
1300                 changeDepth(cur, DEC_DEPTH);
1301                 break;
1302
1303         case LFUN_DEPTH_INCREMENT:
1304                 changeDepth(cur, INC_DEPTH);
1305                 break;
1306
1307         case LFUN_MATH_DISPLAY:
1308                 mathDispatch(cur, cmd, true);
1309                 break;
1310
1311         case LFUN_MATH_IMPORT_SELECTION:
1312         case LFUN_MATH_MODE:
1313                 if (cmd.argument() == "on")
1314                         // don't pass "on" as argument
1315                         mathDispatch(cur, FuncRequest(LFUN_MATH_MODE), false);
1316                 else
1317                         mathDispatch(cur, cmd, false);
1318                 break;
1319
1320         case LFUN_MATH_MACRO:
1321                 if (cmd.argument().empty())
1322                         cur.errorMessage(from_utf8(N_("Missing argument")));
1323                 else {
1324                         string s = to_utf8(cmd.argument());
1325                         string const s1 = token(s, ' ', 1);
1326                         int const nargs = s1.empty() ? 0 : convert<int>(s1);
1327                         string const s2 = token(s, ' ', 2);
1328                         string const type = s2.empty() ? "newcommand" : s2;
1329                         cur.insert(new MathMacroTemplate(from_utf8(token(s, ' ', 0)), nargs, from_utf8(type)));
1330                         //cur.nextInset()->edit(cur, true);
1331                 }
1332                 break;
1333
1334         // passthrough hat and underscore outside mathed:
1335         case LFUN_MATH_SUBSCRIPT:
1336                 mathDispatch(cur, FuncRequest(LFUN_SELF_INSERT, "_"), false);
1337                 break;
1338         case LFUN_MATH_SUPERSCRIPT:
1339                 mathDispatch(cur, FuncRequest(LFUN_SELF_INSERT, "^"), false);
1340                 break;
1341
1342         case LFUN_MATH_INSERT:
1343         case LFUN_MATH_MATRIX:
1344         case LFUN_MATH_DELIM:
1345         case LFUN_MATH_BIGDELIM: {
1346                 cur.insert(new InsetMathHull(hullSimple));
1347                 checkAndActivateInset(cur, true);
1348                 BOOST_ASSERT(cur.inMathed());
1349                 cur.dispatch(cmd);
1350                 break;
1351         }
1352
1353         case LFUN_FONT_EMPH: {
1354                 Font font(Font::ALL_IGNORE);
1355                 font.setEmph(Font::TOGGLE);
1356                 toggleAndShow(cur, this, font);
1357                 break;
1358         }
1359
1360         case LFUN_FONT_BOLD: {
1361                 Font font(Font::ALL_IGNORE);
1362                 font.setSeries(Font::BOLD_SERIES);
1363                 toggleAndShow(cur, this, font);
1364                 break;
1365         }
1366
1367         case LFUN_FONT_NOUN: {
1368                 Font font(Font::ALL_IGNORE);
1369                 font.setNoun(Font::TOGGLE);
1370                 toggleAndShow(cur, this, font);
1371                 break;
1372         }
1373
1374         case LFUN_FONT_CODE: {
1375                 Font font(Font::ALL_IGNORE);
1376                 font.setFamily(Font::TYPEWRITER_FAMILY); // no good
1377                 toggleAndShow(cur, this, font);
1378                 break;
1379         }
1380
1381         case LFUN_FONT_SANS: {
1382                 Font font(Font::ALL_IGNORE);
1383                 font.setFamily(Font::SANS_FAMILY);
1384                 toggleAndShow(cur, this, font);
1385                 break;
1386         }
1387
1388         case LFUN_FONT_ROMAN: {
1389                 Font font(Font::ALL_IGNORE);
1390                 font.setFamily(Font::ROMAN_FAMILY);
1391                 toggleAndShow(cur, this, font);
1392                 break;
1393         }
1394
1395         case LFUN_FONT_DEFAULT: {
1396                 Font font(Font::ALL_INHERIT, ignore_language);
1397                 toggleAndShow(cur, this, font);
1398                 break;
1399         }
1400
1401         case LFUN_FONT_UNDERLINE: {
1402                 Font font(Font::ALL_IGNORE);
1403                 font.setUnderbar(Font::TOGGLE);
1404                 toggleAndShow(cur, this, font);
1405                 break;
1406         }
1407
1408         case LFUN_FONT_SIZE: {
1409                 Font font(Font::ALL_IGNORE);
1410                 font.setLyXSize(to_utf8(cmd.argument()));
1411                 toggleAndShow(cur, this, font);
1412                 break;
1413         }
1414
1415         case LFUN_LANGUAGE: {
1416                 Language const * lang = languages.getLanguage(to_utf8(cmd.argument()));
1417                 if (!lang)
1418                         break;
1419                 Font font(Font::ALL_IGNORE);
1420                 font.setLanguage(lang);
1421                 toggleAndShow(cur, this, font);
1422                 break;
1423         }
1424
1425         case LFUN_FONT_FREE_APPLY:
1426                 toggleAndShow(cur, this, freefont, toggleall);
1427                 cur.message(_("Character set"));
1428                 break;
1429
1430         // Set the freefont using the contents of \param data dispatched from
1431         // the frontends and apply it at the current cursor location.
1432         case LFUN_FONT_FREE_UPDATE: {
1433                 Font font;
1434                 bool toggle;
1435                 if (bv_funcs::string2font(to_utf8(cmd.argument()), font, toggle)) {
1436                         freefont = font;
1437                         toggleall = toggle;
1438                         toggleAndShow(cur, this, freefont, toggleall);
1439                         cur.message(_("Character set"));
1440                 }
1441                 break;
1442         }
1443
1444         case LFUN_FINISHED_LEFT:
1445                 LYXERR(Debug::DEBUG) << "handle LFUN_FINISHED_LEFT:\n" << cur << endl;
1446                 if (reverseDirectionNeeded(cur))
1447                         ++cur.pos();
1448                 break;
1449
1450         case LFUN_FINISHED_RIGHT:
1451                 LYXERR(Debug::DEBUG) << "handle LFUN_FINISHED_RIGHT:\n" << cur << endl;
1452                 if (!reverseDirectionNeeded(cur))
1453                         ++cur.pos();
1454                 break;
1455
1456         case LFUN_LAYOUT_PARAGRAPH: {
1457                 string data;
1458                 params2string(cur.paragraph(), data);
1459                 data = "show\n" + data;
1460                 bv->showDialogWithData("paragraph", data);
1461                 break;
1462         }
1463
1464         case LFUN_PARAGRAPH_UPDATE: {
1465                 string data;
1466                 params2string(cur.paragraph(), data);
1467
1468                 // Will the paragraph accept changes from the dialog?
1469                 bool const accept = !cur.inset().forceDefaultParagraphs(cur.idx());
1470
1471                 data = "update " + convert<string>(accept) + '\n' + data;
1472                 bv->updateDialog("paragraph", data);
1473                 break;
1474         }
1475
1476         case LFUN_ACCENT_UMLAUT:
1477         case LFUN_ACCENT_CIRCUMFLEX:
1478         case LFUN_ACCENT_GRAVE:
1479         case LFUN_ACCENT_ACUTE:
1480         case LFUN_ACCENT_TILDE:
1481         case LFUN_ACCENT_CEDILLA:
1482         case LFUN_ACCENT_MACRON:
1483         case LFUN_ACCENT_DOT:
1484         case LFUN_ACCENT_UNDERDOT:
1485         case LFUN_ACCENT_UNDERBAR:
1486         case LFUN_ACCENT_CARON:
1487         case LFUN_ACCENT_SPECIAL_CARON:
1488         case LFUN_ACCENT_BREVE:
1489         case LFUN_ACCENT_TIE:
1490         case LFUN_ACCENT_HUNGARIAN_UMLAUT:
1491         case LFUN_ACCENT_CIRCLE:
1492         case LFUN_ACCENT_OGONEK:
1493                 theLyXFunc().handleKeyFunc(cmd.action);
1494                 if (!cmd.argument().empty())
1495                         // FIXME: Are all these characters encoded in one byte in utf8?
1496                         bv->translateAndInsert(cmd.argument()[0], this, cur);
1497                 break;
1498
1499         case LFUN_FLOAT_LIST: {
1500                 TextClass const & tclass = bv->buffer()->params().getTextClass();
1501                 if (tclass.floats().typeExist(to_utf8(cmd.argument()))) {
1502                         // not quite sure if we want this...
1503                         recordUndo(cur);
1504                         cur.clearSelection();
1505                         breakParagraph(cur);
1506
1507                         if (cur.lastpos() != 0) {
1508                                 cursorLeft(cur);
1509                                 breakParagraph(cur);
1510                         }
1511
1512                         setLayout(cur, tclass.defaultLayoutName());
1513                         setParagraph(cur, Spacing(), LYX_ALIGN_LAYOUT, docstring(), 0);
1514                         insertInset(cur, new InsetFloatList(to_utf8(cmd.argument())));
1515                         cur.posRight();
1516                 } else {
1517                         lyxerr << "Non-existent float type: "
1518                                << to_utf8(cmd.argument()) << endl;
1519                 }
1520                 break;
1521         }
1522
1523         case LFUN_CHANGE_ACCEPT: {
1524                 acceptOrRejectChanges(cur, ACCEPT);
1525                 break;
1526         }
1527
1528         case LFUN_CHANGE_REJECT: {
1529                 acceptOrRejectChanges(cur, REJECT);
1530                 break;
1531         }
1532
1533         case LFUN_THESAURUS_ENTRY: {
1534                 docstring arg = cmd.argument();
1535                 if (arg.empty()) {
1536                         arg = cur.selectionAsString(false);
1537                         // FIXME
1538                         if (arg.size() > 100 || arg.empty()) {
1539                                 // Get word or selection
1540                                 selectWordWhenUnderCursor(cur, WHOLE_WORD);
1541                                 arg = cur.selectionAsString(false);
1542                         }
1543                 }
1544                 bv->showDialogWithData("thesaurus", to_utf8(arg));
1545                 break;
1546         }
1547
1548         case LFUN_PARAGRAPH_PARAMS_APPLY: {
1549                 // Given data, an encoding of the ParagraphParameters
1550                 // generated in the Paragraph dialog, this function sets
1551                 // the current paragraph appropriately.
1552                 istringstream is(to_utf8(cmd.argument()));
1553                 Lexer lex(0, 0);
1554                 lex.setStream(is);
1555                 ParagraphParameters params;
1556                 params.read(lex);
1557                 setParagraph(cur,
1558                              params.spacing(),
1559                              params.align(),
1560                              params.labelWidthString(),
1561                              params.noindent());
1562                 cur.message(_("Paragraph layout set"));
1563                 break;
1564         }
1565
1566         case LFUN_ESCAPE:
1567                 if (cur.selection()) {
1568                         cur.selection() = false;
1569                 } else {
1570                         cur.undispatched();
1571                         cmd = FuncRequest(LFUN_FINISHED_RIGHT);
1572                 }
1573                 break;
1574
1575         default:
1576                 LYXERR(Debug::ACTION)
1577                         << BOOST_CURRENT_FUNCTION
1578                         << ": Command " << cmd
1579                         << " not DISPATCHED by Text" << endl;
1580                 cur.undispatched();
1581                 break;
1582         }
1583
1584         needsUpdate |= (cur.pos() != cur.lastpos()) && cur.selection();
1585
1586         // FIXME: The cursor flag is reset two lines below
1587         // so we need to check here if some of the LFUN did touch that.
1588         // for now only Text::erase() and Text::backspace() do that.
1589         // The plan is to verify all the LFUNs and then to remove this
1590         // singleParUpdate boolean altogether.
1591         if (cur.result().update() & Update::Force) {
1592                 singleParUpdate = false;
1593                 needsUpdate = true;
1594         }
1595
1596         // FIXME: the following code should go in favor of fine grained
1597         // update flag treatment.
1598         if (singleParUpdate) {
1599                 // Inserting characters does not change par height
1600                 ParagraphMetrics const & pms
1601                         = cur.bv().parMetrics(cur.bottom().text(), cur.bottom().pit());
1602                 if (pms.dim().height()
1603                     == olddim.height()) {
1604                         // if so, update _only_ this paragraph
1605                         cur.updateFlags(Update::SinglePar |
1606                                 Update::FitCursor |
1607                                 Update::MultiParSel);
1608                         return;
1609                 } else
1610                         needsUpdate = true;
1611         }
1612
1613         if (!needsUpdate
1614             && &oldTopSlice.inset() == &cur.inset()
1615             && oldTopSlice.idx() == cur.idx()
1616             && !sel // sel is a backup of cur.selection() at the biginning of the function.
1617             && !cur.selection())
1618                 // FIXME: it would be better if we could just do this
1619                 //
1620                 //if (cur.result().update() != Update::FitCursor)
1621                 //      cur.noUpdate();
1622                 //
1623                 // But some LFUNs do not set Update::FitCursor when needed, so we
1624                 // do it for all. This is not very harmfull as FitCursor will provoke
1625                 // a full redraw only if needed but still, a proper review of all LFUN
1626                 // should be done and this needsUpdate boolean can then be removed.
1627                 cur.updateFlags(Update::FitCursor);
1628         else
1629                 cur.updateFlags(Update::Force | Update::FitCursor);
1630 }
1631
1632
1633 bool Text::getStatus(Cursor & cur, FuncRequest const & cmd,
1634                         FuncStatus & flag) const
1635 {
1636         BOOST_ASSERT(cur.text() == this);
1637
1638         Font const & font = real_current_font;
1639         bool enable = true;
1640         Inset::Code code = Inset::NO_CODE;
1641
1642         switch (cmd.action) {
1643
1644         case LFUN_DEPTH_DECREMENT:
1645                 enable = changeDepthAllowed(cur, DEC_DEPTH);
1646                 break;
1647
1648         case LFUN_DEPTH_INCREMENT:
1649                 enable = changeDepthAllowed(cur, INC_DEPTH);
1650                 break;
1651
1652         case LFUN_APPENDIX:
1653                 flag.setOnOff(cur.paragraph().params().startOfAppendix());
1654                 return true;
1655
1656         case LFUN_BIBITEM_INSERT:
1657                 enable = (cur.paragraph().layout()->labeltype == LABEL_BIBLIO
1658                           && cur.pos() == 0);
1659                 break;
1660
1661         case LFUN_DIALOG_SHOW_NEW_INSET:
1662                 if (cmd.argument() == "bibitem")
1663                         code = Inset::BIBITEM_CODE;
1664                 else if (cmd.argument() == "bibtex")
1665                         code = Inset::BIBTEX_CODE;
1666                 else if (cmd.argument() == "box")
1667                         code = Inset::BOX_CODE;
1668                 else if (cmd.argument() == "branch")
1669                         code = Inset::BRANCH_CODE;
1670                 else if (cmd.argument() == "citation")
1671                         code = Inset::CITE_CODE;
1672                 else if (cmd.argument() == "ert")
1673                         code = Inset::ERT_CODE;
1674                 else if (cmd.argument() == "external")
1675                         code = Inset::EXTERNAL_CODE;
1676                 else if (cmd.argument() == "float")
1677                         code = Inset::FLOAT_CODE;
1678                 else if (cmd.argument() == "graphics")
1679                         code = Inset::GRAPHICS_CODE;
1680                 else if (cmd.argument() == "include")
1681                         code = Inset::INCLUDE_CODE;
1682                 else if (cmd.argument() == "index")
1683                         code = Inset::INDEX_CODE;
1684                 else if (cmd.argument() == "nomenclature")
1685                         code = Inset::NOMENCL_CODE;
1686                 else if (cmd.argument() == "label")
1687                         code = Inset::LABEL_CODE;
1688                 else if (cmd.argument() == "note")
1689                         code = Inset::NOTE_CODE;
1690                 else if (cmd.argument() == "ref")
1691                         code = Inset::REF_CODE;
1692                 else if (cmd.argument() == "toc")
1693                         code = Inset::TOC_CODE;
1694                 else if (cmd.argument() == "url")
1695                         code = Inset::URL_CODE;
1696                 else if (cmd.argument() == "vspace")
1697                         code = Inset::VSPACE_CODE;
1698                 else if (cmd.argument() == "wrap")
1699                         code = Inset::WRAP_CODE;
1700                 else if (cmd.argument() == "listings")
1701                         code = Inset::LISTINGS_CODE;
1702                 break;
1703
1704         case LFUN_ERT_INSERT:
1705                 code = Inset::ERT_CODE;
1706                 break;
1707         case LFUN_LISTING_INSERT:
1708             code = Inset::LISTINGS_CODE;
1709                 break;
1710         case LFUN_FOOTNOTE_INSERT:
1711                 code = Inset::FOOT_CODE;
1712                 break;
1713         case LFUN_TABULAR_INSERT:
1714                 code = Inset::TABULAR_CODE;
1715                 break;
1716         case LFUN_MARGINALNOTE_INSERT:
1717                 code = Inset::MARGIN_CODE;
1718                 break;
1719         case LFUN_FLOAT_INSERT:
1720         case LFUN_FLOAT_WIDE_INSERT:
1721                 code = Inset::FLOAT_CODE;
1722                 break;
1723         case LFUN_WRAP_INSERT:
1724                 code = Inset::WRAP_CODE;
1725                 break;
1726         case LFUN_FLOAT_LIST:
1727                 code = Inset::FLOAT_LIST_CODE;
1728                 break;
1729 #if 0
1730         case LFUN_LIST_INSERT:
1731                 code = Inset::LIST_CODE;
1732                 break;
1733         case LFUN_THEOREM_INSERT:
1734                 code = Inset::THEOREM_CODE;
1735                 break;
1736 #endif
1737         case LFUN_CAPTION_INSERT:
1738                 code = Inset::CAPTION_CODE;
1739                 break;
1740         case LFUN_NOTE_INSERT:
1741                 code = Inset::NOTE_CODE;
1742                 break;
1743         case LFUN_CHARSTYLE_INSERT:
1744                 code = Inset::CHARSTYLE_CODE;
1745                 if (cur.buffer().params().getTextClass().charstyles().empty())
1746                         enable = false;
1747                 break;
1748         case LFUN_BOX_INSERT:
1749                 code = Inset::BOX_CODE;
1750                 break;
1751         case LFUN_BRANCH_INSERT:
1752                 code = Inset::BRANCH_CODE;
1753                 if (cur.buffer().getMasterBuffer()->params().branchlist().empty())
1754                         enable = false;
1755                 break;
1756         case LFUN_LABEL_INSERT:
1757                 code = Inset::LABEL_CODE;
1758                 break;
1759         case LFUN_OPTIONAL_INSERT:
1760                 code = Inset::OPTARG_CODE;
1761                 enable = numberOfOptArgs(cur.paragraph())
1762                         < cur.paragraph().layout()->optionalargs;
1763                 break;
1764         case LFUN_ENVIRONMENT_INSERT:
1765                 code = Inset::BOX_CODE;
1766                 break;
1767         case LFUN_INDEX_INSERT:
1768                 code = Inset::INDEX_CODE;
1769                 break;
1770         case LFUN_INDEX_PRINT:
1771                 code = Inset::INDEX_PRINT_CODE;
1772                 break;
1773         case LFUN_NOMENCL_INSERT:
1774                 code = Inset::NOMENCL_CODE;
1775                 break;
1776         case LFUN_NOMENCL_PRINT:
1777                 code = Inset::NOMENCL_PRINT_CODE;
1778                 break;
1779         case LFUN_TOC_INSERT:
1780                 code = Inset::TOC_CODE;
1781                 break;
1782         case LFUN_HTML_INSERT:
1783         case LFUN_URL_INSERT:
1784                 code = Inset::URL_CODE;
1785                 break;
1786         case LFUN_QUOTE_INSERT:
1787                 // always allow this, since we will inset a raw quote
1788                 // if an inset is not allowed.
1789                 break;
1790         case LFUN_HYPHENATION_POINT_INSERT:
1791         case LFUN_LIGATURE_BREAK_INSERT:
1792         case LFUN_HFILL_INSERT:
1793         case LFUN_MENU_SEPARATOR_INSERT:
1794         case LFUN_DOTS_INSERT:
1795         case LFUN_END_OF_SENTENCE_PERIOD_INSERT:
1796                 code = Inset::SPECIALCHAR_CODE;
1797                 break;
1798         case LFUN_SPACE_INSERT:
1799                 // slight hack: we know this is allowed in math mode
1800                 if (cur.inTexted())
1801                         code = Inset::SPACE_CODE;
1802                 break;
1803
1804         case LFUN_INSET_MODIFY:
1805                 // We need to disable this, because we may get called for a
1806                 // tabular cell via
1807                 // InsetTabular::getStatus() -> InsetText::getStatus()
1808                 // and we don't handle LFUN_INSET_MODIFY.
1809                 enable = false;
1810                 break;
1811
1812         case LFUN_FONT_EMPH:
1813                 flag.setOnOff(font.emph() == Font::ON);
1814                 return true;
1815
1816         case LFUN_FONT_NOUN:
1817                 flag.setOnOff(font.noun() == Font::ON);
1818                 return true;
1819
1820         case LFUN_FONT_BOLD:
1821                 flag.setOnOff(font.series() == Font::BOLD_SERIES);
1822                 return true;
1823
1824         case LFUN_FONT_SANS:
1825                 flag.setOnOff(font.family() == Font::SANS_FAMILY);
1826                 return true;
1827
1828         case LFUN_FONT_ROMAN:
1829                 flag.setOnOff(font.family() == Font::ROMAN_FAMILY);
1830                 return true;
1831
1832         case LFUN_FONT_CODE:
1833                 flag.setOnOff(font.family() == Font::TYPEWRITER_FAMILY);
1834                 return true;
1835
1836         case LFUN_CUT:
1837         case LFUN_COPY:
1838                 enable = cur.selection();
1839                 break;
1840
1841         case LFUN_PASTE:
1842                 if (cmd.argument().empty()) {
1843                         if (theClipboard().isInternal())
1844                                 enable = cap::numberOfSelections() > 0;
1845                         else
1846                                 enable = !theClipboard().empty();
1847                 } else {
1848                         string const arg = to_utf8(cmd.argument());
1849                         if (isStrUnsignedInt(arg)) {
1850                                 unsigned int n = convert<unsigned int>(arg);
1851                                 enable = cap::numberOfSelections() > n;
1852                         } else
1853                                 // unknown argument
1854                                 enable = false;
1855                 }
1856                 break;
1857
1858         case LFUN_CLIPBOARD_PASTE:
1859                 enable = !theClipboard().empty();
1860                 break;
1861
1862         case LFUN_PRIMARY_SELECTION_PASTE:
1863                 enable = cur.selection() || !theSelection().empty();
1864                 break;
1865
1866         case LFUN_PARAGRAPH_MOVE_UP:
1867                 enable = cur.pit() > 0 && !cur.selection();
1868                 break;
1869
1870         case LFUN_PARAGRAPH_MOVE_DOWN:
1871                 enable = cur.pit() < cur.lastpit() && !cur.selection();
1872                 break;
1873
1874         case LFUN_INSET_DISSOLVE:
1875                 enable = !isMainText(*cur.bv().buffer()) && cur.inset().nargs() == 1;
1876                 break;
1877
1878         case LFUN_CHANGE_ACCEPT:
1879         case LFUN_CHANGE_REJECT:
1880                 // TODO: context-sensitive enabling of LFUN_CHANGE_ACCEPT/REJECT
1881                 // In principle, these LFUNs should only be enabled if there
1882                 // is a change at the current position/in the current selection.
1883                 // However, without proper optimizations, this will inevitably
1884                 // result in unacceptable performance - just imagine a user who
1885                 // wants to select the complete content of a long document.
1886                 enable = true;
1887                 break;
1888
1889         case LFUN_WORD_DELETE_FORWARD:
1890         case LFUN_WORD_DELETE_BACKWARD:
1891         case LFUN_LINE_DELETE:
1892         case LFUN_WORD_FORWARD:
1893         case LFUN_WORD_BACKWARD:
1894         case LFUN_CHAR_FORWARD:
1895         case LFUN_CHAR_FORWARD_SELECT:
1896         case LFUN_CHAR_BACKWARD:
1897         case LFUN_CHAR_BACKWARD_SELECT:
1898         case LFUN_UP:
1899         case LFUN_UP_SELECT:
1900         case LFUN_DOWN:
1901         case LFUN_DOWN_SELECT:
1902         case LFUN_PARAGRAPH_UP_SELECT:
1903         case LFUN_PARAGRAPH_DOWN_SELECT:
1904         case LFUN_SCREEN_UP_SELECT:
1905         case LFUN_SCREEN_DOWN_SELECT:
1906         case LFUN_LINE_BEGIN_SELECT:
1907         case LFUN_LINE_END_SELECT:
1908         case LFUN_WORD_FORWARD_SELECT:
1909         case LFUN_WORD_BACKWARD_SELECT:
1910         case LFUN_WORD_SELECT:
1911         case LFUN_PARAGRAPH_UP:
1912         case LFUN_PARAGRAPH_DOWN:
1913         case LFUN_SCREEN_UP:
1914         case LFUN_SCREEN_DOWN:
1915         case LFUN_LINE_BEGIN:
1916         case LFUN_LINE_END:
1917         case LFUN_BREAK_LINE:
1918         case LFUN_CHAR_DELETE_FORWARD:
1919         case LFUN_DELETE_FORWARD_SKIP:
1920         case LFUN_CHAR_DELETE_BACKWARD:
1921         case LFUN_DELETE_BACKWARD_SKIP:
1922         case LFUN_BREAK_PARAGRAPH:
1923         case LFUN_BREAK_PARAGRAPH_KEEP_LAYOUT:
1924         case LFUN_BREAK_PARAGRAPH_SKIP:
1925         case LFUN_PARAGRAPH_SPACING:
1926         case LFUN_INSET_INSERT:
1927         case LFUN_WORD_UPCASE:
1928         case LFUN_WORD_LOWCASE:
1929         case LFUN_WORD_CAPITALIZE:
1930         case LFUN_CHARS_TRANSPOSE:
1931         case LFUN_SERVER_GET_XY:
1932         case LFUN_SERVER_SET_XY:
1933         case LFUN_SERVER_GET_FONT:
1934         case LFUN_SERVER_GET_LAYOUT:
1935         case LFUN_LAYOUT:
1936         case LFUN_DATE_INSERT:
1937         case LFUN_SELF_INSERT:
1938         case LFUN_LINE_INSERT:
1939         case LFUN_PAGEBREAK_INSERT:
1940         case LFUN_CLEARPAGE_INSERT:
1941         case LFUN_CLEARDOUBLEPAGE_INSERT:
1942         case LFUN_MATH_DISPLAY:
1943         case LFUN_MATH_IMPORT_SELECTION:
1944         case LFUN_MATH_MODE:
1945         case LFUN_MATH_MACRO:
1946         case LFUN_MATH_MATRIX:
1947         case LFUN_MATH_DELIM:
1948         case LFUN_MATH_BIGDELIM:
1949         case LFUN_MATH_INSERT:
1950         case LFUN_MATH_SUBSCRIPT:
1951         case LFUN_MATH_SUPERSCRIPT:
1952         case LFUN_FONT_DEFAULT:
1953         case LFUN_FONT_UNDERLINE:
1954         case LFUN_FONT_SIZE:
1955         case LFUN_LANGUAGE:
1956         case LFUN_FONT_FREE_APPLY:
1957         case LFUN_FONT_FREE_UPDATE:
1958         case LFUN_LAYOUT_PARAGRAPH:
1959         case LFUN_PARAGRAPH_UPDATE:
1960         case LFUN_ACCENT_UMLAUT:
1961         case LFUN_ACCENT_CIRCUMFLEX:
1962         case LFUN_ACCENT_GRAVE:
1963         case LFUN_ACCENT_ACUTE:
1964         case LFUN_ACCENT_TILDE:
1965         case LFUN_ACCENT_CEDILLA:
1966         case LFUN_ACCENT_MACRON:
1967         case LFUN_ACCENT_DOT:
1968         case LFUN_ACCENT_UNDERDOT:
1969         case LFUN_ACCENT_UNDERBAR:
1970         case LFUN_ACCENT_CARON:
1971         case LFUN_ACCENT_SPECIAL_CARON:
1972         case LFUN_ACCENT_BREVE:
1973         case LFUN_ACCENT_TIE:
1974         case LFUN_ACCENT_HUNGARIAN_UMLAUT:
1975         case LFUN_ACCENT_CIRCLE:
1976         case LFUN_ACCENT_OGONEK:
1977         case LFUN_THESAURUS_ENTRY:
1978         case LFUN_PARAGRAPH_PARAMS_APPLY:
1979         case LFUN_ESCAPE:
1980         case LFUN_BUFFER_END:
1981         case LFUN_BUFFER_BEGIN:
1982         case LFUN_BUFFER_BEGIN_SELECT:
1983         case LFUN_BUFFER_END_SELECT:
1984         case LFUN_UNICODE_INSERT:
1985                 // these are handled in our dispatch()
1986                 enable = true;
1987                 break;
1988
1989         default:
1990                 return false;
1991         }
1992
1993         if (code != Inset::NO_CODE
1994             && (cur.empty() || !cur.inset().insetAllowed(code)))
1995                 enable = false;
1996
1997         flag.enabled(enable);
1998         return true;
1999 }
2000
2001
2002 void Text::pasteString(Cursor & cur, docstring const & clip,
2003                 bool asParagraphs)
2004 {
2005         cur.clearSelection();
2006         if (!clip.empty()) {
2007                 recordUndo(cur);
2008                 if (asParagraphs)
2009                         insertStringAsParagraphs(cur, clip);
2010                 else
2011                         insertStringAsLines(cur, clip);
2012         }
2013 }
2014
2015 } // namespace lyx