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 "Bidi.h"
  21 #include "BranchList.h"
  22 #include "FloatList.h"
  23 #include "FuncStatus.h"
  24 #include "Buffer.h"
  25 #include "buffer_funcs.h"
  26 #include "BufferParams.h"
  27 #include "BufferView.h"
  28 #include "Cursor.h"
  29 #include "CutAndPaste.h"
  30 #include "debug.h"
  31 #include "DispatchResult.h"
  32 #include "ErrorList.h"
  33 #include "factory.h"
  34 #include "FuncRequest.h"
  35 #include "gettext.h"
  36 #include "InsetList.h"
  37 #include "Intl.h"
  38 #include "Language.h"
  39 #include "Layout.h"
  40 #include "LyXAction.h"
  41 #include "LyXFunc.h"
  42 #include "Lexer.h"
  43 #include "LyXRC.h"
  44 #include "Paragraph.h"
  45 #include "paragraph_funcs.h"
  46 #include "ParagraphParameters.h"
  47 #include "ParIterator.h"
  48 #include "TextClass.h"
  49 #include "TextMetrics.h"
  50 #include "VSpace.h"
  51
  52 #include "frontends/Clipboard.h"
  53 #include "frontends/Selection.h"
  54
  55 #include "insets/InsetCollapsable.h"
  56 #include "insets/InsetCommand.h"
  57 #include "insets/InsetFloatList.h"
  58 #include "insets/InsetNewline.h"
  59 #include "insets/InsetQuotes.h"
  60 #include "insets/InsetSpecialChar.h"
  61 #include "insets/InsetText.h"
  62 #include "insets/InsetInfo.h"
  63
  64 #include "support/lstrings.h"
  65 #include "support/lyxlib.h"
  66 #include "support/convert.h"
  67 #include "support/lyxtime.h"
  68
  69 #include "mathed/InsetMathHull.h"
  70 #include "mathed/MathMacroTemplate.h"
  71
  72 #include <boost/current_function.hpp>
  73 #include <boost/next_prior.hpp>
  74
  75 #include <clocale>
  76 #include <sstream>
  77
  78 using std::endl;
  79 using std::string;
  80 using std::istringstream;
  81 using std::ostringstream;
  82
  83 namespace lyx {
  84
  85 using cap::copySelection;
  86 using cap::cutSelection;
  87 using cap::pasteFromStack;
  88 using cap::pasteClipboard;
  89 using cap::replaceSelection;
  90
  91 using support::isStrUnsignedInt;
  92 using support::token;
  93
  94 // globals...
  95 static Font freefont(ignore_font, ignore_language);
  96 static bool toggleall = false;
  97
  98 static void toggleAndShow(Cursor & cur, Text * text,
  99         Font const & font, bool toggleall = true)
 100 {
 101         text->toggleFree(cur, font, toggleall);
 102
 103         if (font.language() != ignore_language ||
 104             font.fontInfo().number() != FONT_IGNORE) {
 105                 TextMetrics const & tm = cur.bv().textMetrics(text);
 106                 if (cur.boundary() != tm.isRTLBoundary(cur.pit(), cur.pos(),
 107                                                        cur.real_current_font))
 108                         text->setCursor(cur, cur.pit(), cur.pos(),
 109                                         false, !cur.boundary());
 110         }
 111 }
 112
 113
 114 static void moveCursor(Cursor & cur, bool selecting)
 115 {
 116         if (selecting || cur.mark())
 117                 cur.setSelection();
 118 }
 119
 120
 121 static void finishChange(Cursor & cur, bool selecting)
 122 {
 123         cur.finishUndo();
 124         moveCursor(cur, selecting);
 125 }
 126
 127
 128 static void mathDispatch(Cursor & cur, FuncRequest const & cmd, bool display)
 129 {
 130         cur.recordUndo();
 131         docstring sel = cur.selectionAsString(false);
 132
 133         // It may happen that sel is empty but there is a selection
 134         replaceSelection(cur);
 135
 136         if (sel.empty()) {
 137 #ifdef ENABLE_ASSERTIONS
 138                 const int old_pos = cur.pos();
 139 #endif
 140                 cur.insert(new InsetMathHull(hullSimple));
 141                 BOOST_ASSERT(old_pos == cur.pos());
 142                 cur.nextInset()->edit(cur, true);
 143                 // don't do that also for LFUN_MATH_MODE
 144                 // unless you want end up with always changing
 145                 // to mathrm when opening an inlined inset --
 146                 // I really hate "LyXfunc overloading"...
 147                 if (display)
 148                         cur.dispatch(FuncRequest(LFUN_MATH_DISPLAY));
 149                 // Avoid an unnecessary undo step if cmd.argument
 150                 // is empty
 151                 if (!cmd.argument().empty())
 152                         cur.dispatch(FuncRequest(LFUN_MATH_INSERT,
 153                                                  cmd.argument()));
 154         } else {
 155                 // create a macro if we see "\\newcommand"
 156                 // somewhere, and an ordinary formula
 157                 // otherwise
 158                 if (sel.find(from_ascii("\\newcommand")) == string::npos
 159                                 && sel.find(from_ascii("\\def")) == string::npos)
 160                 {
 161                         InsetMathHull * formula = new InsetMathHull;
 162                         istringstream is(to_utf8(sel));
 163                         Lexer lex(0, 0);
 164                         lex.setStream(is);
 165                         formula->read(cur.buffer(), lex);
 166                         if (formula->getType() == hullNone)
 167                                 // Don't create pseudo formulas if
 168                                 // delimiters are left out
 169                                 formula->mutate(hullSimple);
 170                         cur.insert(formula);
 171                 } else {
 172                         cur.insert(new MathMacroTemplate(sel));
 173                 }
 174         }
 175         cur.message(from_utf8(N_("Math editor mode")));
 176 }
 177
 178
 179 static void specialChar(Cursor & cur, InsetSpecialChar::Kind kind)
 180 {
 181         cur.recordUndo();
 182         cap::replaceSelection(cur);
 183         cur.insert(new InsetSpecialChar(kind));
 184         cur.posForward();
 185 }
 186
 187
 188 static bool doInsertInset(Cursor & cur, Text * text,
 189         FuncRequest const & cmd, bool edit, bool pastesel)
 190 {
 191         Inset * inset = createInset(cur.bv().buffer(), cmd);
 192         if (!inset)
 193                 return false;
 194
 195         if (InsetCollapsable * ci = inset->asInsetCollapsable())
 196                 ci->setLayout(cur.bv().buffer().params());
 197
 198         cur.recordUndo();
 199         if (cmd.action == LFUN_INDEX_INSERT) {
 200                 docstring ds = support::subst(text->getStringToIndex(cur), '\n', ' ');
 201                 text->insertInset(cur, inset);
 202                 if (edit)
 203                         inset->edit(cur, true);
 204                 // Now put this into inset
 205                 static_cast<InsetCollapsable *>(inset)->text_.insertStringAsParagraphs(cur, ds);
 206         } else {
 207                 bool gotsel = false;
 208                 if (cur.selection()) {
 209                         lyx::dispatch(FuncRequest(LFUN_CUT));
 210                         gotsel = true;
 211                 }
 212                 text->insertInset(cur, inset);
 213
 214                 if (edit)
 215                         inset->edit(cur, true);
 216
 217                 if (gotsel && pastesel) {
 218                         lyx::dispatch(FuncRequest(LFUN_PASTE, "0"));
 219                         InsetText * insetText = dynamic_cast<InsetText *>(inset);
 220                         if (insetText && !insetText->allowMultiPar()
 221                             || cur.lastpit() == 0) {
 222                                 // reset first par to default
 223                                 LayoutPtr const layout =
 224                                         cur.buffer().params().getTextClass().defaultLayout();
 225                                 cur.text()->paragraphs().begin()->layout(layout);
 226                                 cur.pos() = 0;
 227                                 cur.pit() = 0;
 228                                 // Merge multiple paragraphs -- hack
 229                                 while (cur.lastpit() > 0) {
 230                                         mergeParagraph(cur.buffer().params(),
 231                                                 cur.text()->paragraphs(), 0);
 232                                 }
 233                         } else {
 234                                 // reset surrounding par to default
 235                                 docstring const layoutname =
 236                                         cur.buffer().params().getTextClass().defaultLayoutName();
 237                                 cur.leaveInset(*inset);
 238                                 text->setLayout(cur, layoutname);
 239                         }
 240                 }
 241         }
 242         return true;
 243 }
 244
 245
 246 string const freefont2string()
 247 {
 248         return freefont.toString(toggleall);
 249 }
 250
 251
 252 /// the type of outline operation
 253 enum OutlineOp {
 254         OutlineUp, // Move this header with text down
 255         OutlineDown,   // Move this header with text up
 256         OutlineIn, // Make this header deeper
 257         OutlineOut // Make this header shallower
 258 };
 259
 260
 261 static void outline(OutlineOp mode, Cursor & cur)
 262 {
 263         Buffer & buf = cur.buffer();
 264         pit_type & pit = cur.pit();
 265         ParagraphList & pars = buf.text().paragraphs();
 266         ParagraphList::iterator bgn = pars.begin();
 267         // The first paragraph of the area to be copied:
 268         ParagraphList::iterator start = boost::next(bgn, pit);
 269         // The final paragraph of area to be copied:
 270         ParagraphList::iterator finish = start;
 271         ParagraphList::iterator end = pars.end();
 272
 273         TextClass::const_iterator lit =
 274                 buf.params().getTextClass().begin();
 275         TextClass::const_iterator const lend =
 276                 buf.params().getTextClass().end();
 277
 278         int const thistoclevel = start->layout()->toclevel;
 279         int toclevel;
 280         switch (mode) {
 281                 case OutlineUp: {
 282                         // Move out (down) from this section header
 283                         if (finish != end)
 284                                 ++finish;
 285                         // Seek the one (on same level) below
 286                         for (; finish != end; ++finish) {
 287                                 toclevel = finish->layout()->toclevel;
 288                                 if (toclevel != Layout::NOT_IN_TOC
 289                                     && toclevel <= thistoclevel) {
 290                                         break;
 291                                 }
 292                         }
 293                         ParagraphList::iterator dest = start;
 294                         // Move out (up) from this header
 295                         if (dest == bgn)
 296                                 break;
 297                         // Search previous same-level header above
 298                         do {
 299                                 --dest;
 300                                 toclevel = dest->layout()->toclevel;
 301                         } while(dest != bgn
 302                                 && (toclevel == Layout::NOT_IN_TOC
 303                                     || toclevel > thistoclevel));
 304                         // Not found; do nothing
 305                         if (toclevel == Layout::NOT_IN_TOC || toclevel > thistoclevel)
 306                                 break;
 307                         pit_type const newpit = std::distance(bgn, dest);
 308                         pit_type const len = std::distance(start, finish);
 309                         pit_type const deletepit = pit + len;
 310                         buf.undo().recordUndo(cur, ATOMIC_UNDO, newpit, deletepit - 1);
 311                         pars.insert(dest, start, finish);
 312                         start = boost::next(pars.begin(), deletepit);
 313                         pit = newpit;
 314                         pars.erase(start, finish);
 315                         break;
 316                 }
 317                 case OutlineDown: {
 318                         // Go down out of current header:
 319                         if (finish != end)
 320                                 ++finish;
 321                         // Find next same-level header:
 322                         for (; finish != end; ++finish) {
 323                                 toclevel = finish->layout()->toclevel;
 324                                 if (toclevel != Layout::NOT_IN_TOC && toclevel <= thistoclevel)
 325                                         break;
 326                         }
 327                         ParagraphList::iterator dest = finish;
 328                         // Go one down from *this* header:
 329                         if (dest != end)
 330                                 ++dest;
 331                         else
 332                                 break;
 333                         // Go further down to find header to insert in front of:
 334                         for (; dest != end; ++dest) {
 335                                 toclevel = dest->layout()->toclevel;
 336                                 if (toclevel != Layout::NOT_IN_TOC && toclevel <= thistoclevel)
 337                                         break;
 338                         }
 339                         // One such was found:
 340                         pit_type newpit = std::distance(bgn, dest);
 341                         pit_type const len = std::distance(start, finish);
 342                         buf.undo().recordUndo(cur, ATOMIC_UNDO, pit, newpit - 1);
 343                         pars.insert(dest, start, finish);
 344                         start = boost::next(bgn, pit);
 345                         pit = newpit - len;
 346                         pars.erase(start, finish);
 347                         break;
 348                 }
 349                 case OutlineIn:
 350                         buf.undo().recordUndo(cur);
 351                         for (; lit != lend; ++lit) {
 352                                 if ((*lit)->toclevel == thistoclevel + 1 &&
 353                                     start->layout()->labeltype == (*lit)->labeltype) {
 354                                         start->layout((*lit));
 355                                         break;
 356                                 }
 357                         }
 358                         break;
 359                 case OutlineOut:
 360                         buf.undo().recordUndo(cur);
 361                         for (; lit != lend; ++lit) {
 362                                 if ((*lit)->toclevel == thistoclevel - 1 &&
 363                                     start->layout()->labeltype == (*lit)->labeltype) {
 364                                         start->layout((*lit));
 365                                         break;
 366                                 }
 367                         }
 368                         break;
 369                 default:
 370                         break;
 371         }
 372 }
 373
 374
 375 void Text::number(Cursor & cur)
 376 {
 377         FontInfo font = ignore_font;
 378         font.setNumber(FONT_TOGGLE);
 379         toggleAndShow(cur, this, Font(font));
 380 }
 381
 382
 383 bool Text::isRTL(Buffer const & buffer, Paragraph const & par) const
 384 {
 385         return par.isRTL(buffer.params());
 386 }
 387
 388
 389 void Text::dispatch(Cursor & cur, FuncRequest & cmd)
 390 {
 391         LYXERR(Debug::ACTION, "Text::dispatch: cmd: " << cmd);
 392
 393         // FIXME: We use the update flag to indicates wether a singlePar or a
 394         // full screen update is needed. We reset it here but shall we restore it
 395         // at the end?
 396         cur.noUpdate();
 397
 398         BOOST_ASSERT(cur.text() == this);
 399         BufferView * bv = &cur.bv();
 400         TextMetrics & tm = cur.bv().textMetrics(this);
 401         CursorSlice oldTopSlice = cur.top();
 402         bool oldBoundary = cur.boundary();
 403         bool sel = cur.selection();
 404         // Signals that, even if needsUpdate == false, an update of the
 405         // cursor paragraph is required
 406         bool singleParUpdate = lyxaction.funcHasFlag(cmd.action,
 407                 LyXAction::SingleParUpdate);
 408         // Signals that a full-screen update is required
 409         bool needsUpdate = !(lyxaction.funcHasFlag(cmd.action,
 410                 LyXAction::NoUpdate) || singleParUpdate);
 411         // Remember the old paragraph metric (_outer_ paragraph!)
 412         ParagraphMetrics const & pm = cur.bv().parMetrics(
 413                 cur.bottom().text(), cur.bottom().pit());
 414         Dimension olddim = pm.dim();
 415
 416         switch (cmd.action) {
 417
 418         case LFUN_PARAGRAPH_MOVE_DOWN: {
 419                 pit_type const pit = cur.pit();
 420                 recUndo(cur, pit, pit + 1);
 421                 cur.finishUndo();
 422                 std::swap(pars_[pit], pars_[pit + 1]);
 423                 updateLabels(cur.buffer());
 424                 needsUpdate = true;
 425                 ++cur.pit();
 426                 break;
 427         }
 428
 429         case LFUN_PARAGRAPH_MOVE_UP: {
 430                 pit_type const pit = cur.pit();
 431                 recUndo(cur, pit - 1, pit);
 432                 cur.finishUndo();
 433                 std::swap(pars_[pit], pars_[pit - 1]);
 434                 updateLabels(cur.buffer());
 435                 --cur.pit();
 436                 needsUpdate = true;
 437                 break;
 438         }
 439
 440         case LFUN_APPENDIX: {
 441                 Paragraph & par = cur.paragraph();
 442                 bool start = !par.params().startOfAppendix();
 443
 444 // FIXME: The code below only makes sense at top level.
 445 // Should LFUN_APPENDIX be restricted to top-level paragraphs?
 446                 // ensure that we have only one start_of_appendix in this document
 447                 // FIXME: this don't work for multipart document!
 448                 for (pit_type tmp = 0, end = pars_.size(); tmp != end; ++tmp) {
 449                         if (pars_[tmp].params().startOfAppendix()) {
 450                                 recUndo(cur, tmp);
 451                                 pars_[tmp].params().startOfAppendix(false);
 452                                 break;
 453                         }
 454                 }
 455
 456                 cur.recordUndo();
 457                 par.params().startOfAppendix(start);
 458
 459                 // we can set the refreshing parameters now
 460                 updateLabels(cur.buffer());
 461                 break;
 462         }
 463
 464         case LFUN_WORD_DELETE_FORWARD:
 465                 if (cur.selection()) {
 466                         cutSelection(cur, true, false);
 467                 } else
 468                         deleteWordForward(cur);
 469                 finishChange(cur, false);
 470                 break;
 471
 472         case LFUN_WORD_DELETE_BACKWARD:
 473                 if (cur.selection()) {
 474                         cutSelection(cur, true, false);
 475                 } else
 476                         deleteWordBackward(cur);
 477                 finishChange(cur, false);
 478                 break;
 479
 480         case LFUN_LINE_DELETE:
 481                 if (cur.selection()) {
 482                         cutSelection(cur, true, false);
 483                 } else
 484                         tm.deleteLineForward(cur);
 485                 finishChange(cur, false);
 486                 break;
 487
 488         case LFUN_BUFFER_BEGIN:
 489         case LFUN_BUFFER_BEGIN_SELECT:
 490                 needsUpdate |= cur.selHandle(cmd.action == LFUN_BUFFER_BEGIN_SELECT);
 491                 if (cur.depth() == 1) {
 492                         needsUpdate |= cursorTop(cur);
 493                 } else {
 494                         cur.undispatched();
 495                 }
 496                 break;
 497
 498         case LFUN_BUFFER_END:
 499         case LFUN_BUFFER_END_SELECT:
 500                 needsUpdate |= cur.selHandle(cmd.action == LFUN_BUFFER_END_SELECT);
 501                 if (cur.depth() == 1) {
 502                         needsUpdate |= cursorBottom(cur);
 503                 } else {
 504                         cur.undispatched();
 505                 }
 506                 break;
 507
 508         case LFUN_CHAR_FORWARD:
 509         case LFUN_CHAR_FORWARD_SELECT:
 510                 //lyxerr << BOOST_CURRENT_FUNCTION
 511                 //       << " LFUN_CHAR_FORWARD[SEL]:\n" << cur << endl;
 512                 needsUpdate |= cur.selHandle(cmd.action == LFUN_CHAR_FORWARD_SELECT);
 513                 needsUpdate |= cursorForward(cur);
 514
 515                 if (!needsUpdate && oldTopSlice == cur.top()
 516                                 && cur.boundary() == oldBoundary) {
 517                         cur.undispatched();
 518                         cmd = FuncRequest(LFUN_FINISHED_FORWARD);
 519                 }
 520                 break;
 521
 522         case LFUN_CHAR_BACKWARD:
 523         case LFUN_CHAR_BACKWARD_SELECT:
 524                 //lyxerr << "handle LFUN_CHAR_BACKWARD[_SELECT]:\n" << cur << endl;
 525                 needsUpdate |= cur.selHandle(cmd.action == LFUN_CHAR_BACKWARD_SELECT);
 526                 needsUpdate |= cursorBackward(cur);
 527
 528                 if (!needsUpdate && oldTopSlice == cur.top()
 529                         && cur.boundary() == oldBoundary) {
 530                         cur.undispatched();
 531                         cmd = FuncRequest(LFUN_FINISHED_BACKWARD);
 532                 }
 533                 break;
 534
 535         case LFUN_CHAR_LEFT:
 536         case LFUN_CHAR_LEFT_SELECT:
 537                 //FIXME: for visual cursor, really move left
 538                 if (reverseDirectionNeeded(cur)) {
 539                         cmd.action = cmd.action == LFUN_CHAR_LEFT_SELECT ?
 540                                         LFUN_CHAR_FORWARD_SELECT : LFUN_CHAR_FORWARD;
 541                 } else {
 542                         cmd.action = cmd.action == LFUN_CHAR_LEFT_SELECT ?
 543                                         LFUN_CHAR_BACKWARD_SELECT : LFUN_CHAR_BACKWARD;
 544                 }
 545                 dispatch(cur, cmd);
 546                 return;
 547
 548         case LFUN_CHAR_RIGHT:
 549         case LFUN_CHAR_RIGHT_SELECT:
 550                 //FIXME: for visual cursor, really move right
 551                 if (reverseDirectionNeeded(cur)) {
 552                         cmd.action = cmd.action == LFUN_CHAR_RIGHT_SELECT ?
 553                                         LFUN_CHAR_BACKWARD_SELECT : LFUN_CHAR_BACKWARD;
 554                 } else {
 555                         cmd.action = cmd.action == LFUN_CHAR_RIGHT_SELECT ?
 556                                         LFUN_CHAR_FORWARD_SELECT : LFUN_CHAR_FORWARD;
 557                 }
 558                 dispatch(cur, cmd);
 559                 return;
 560
 561         case LFUN_UP_SELECT:
 562         case LFUN_DOWN_SELECT:
 563         case LFUN_UP:
 564         case LFUN_DOWN: {
 565                 // stop/start the selection
 566                 bool select = cmd.action == LFUN_DOWN_SELECT ||
 567                         cmd.action == LFUN_UP_SELECT;
 568                 cur.selHandle(select);
 569
 570                 // move cursor up/down
 571                 bool up = cmd.action == LFUN_UP_SELECT || cmd.action == LFUN_UP;
 572                 bool const successful = cur.upDownInText(up, needsUpdate);
 573                 if (successful) {
 574                         // notify insets which were left and get their update flags
 575                         notifyCursorLeaves(cur.beforeDispatchCursor(), cur);
 576                         cur.fixIfBroken();
 577
 578                         // redraw if you leave mathed (for the decorations)
 579                         needsUpdate |= cur.beforeDispatchCursor().inMathed();
 580                 } else
 581                         cur.undispatched();
 582
 583                 break;
 584         }
 585
 586         case LFUN_PARAGRAPH_UP:
 587         case LFUN_PARAGRAPH_UP_SELECT:
 588                 needsUpdate |= cur.selHandle(cmd.action == LFUN_PARAGRAPH_UP_SELECT);
 589                 needsUpdate |= cursorUpParagraph(cur);
 590                 break;
 591
 592         case LFUN_PARAGRAPH_DOWN:
 593         case LFUN_PARAGRAPH_DOWN_SELECT:
 594                 needsUpdate |= cur.selHandle(cmd.action == LFUN_PARAGRAPH_DOWN_SELECT);
 595                 needsUpdate |= cursorDownParagraph(cur);
 596                 break;
 597
 598         case LFUN_SCREEN_UP_SELECT:
 599                 needsUpdate |= cur.selHandle(true);
 600                 if (cur.pit() == 0 && cur.textRow().pos() == 0)
 601                         cur.undispatched();
 602                 else {
 603                         tm.cursorPrevious(cur);
 604                 }
 605                 break;
 606
 607         case LFUN_SCREEN_DOWN_SELECT:
 608                 needsUpdate |= cur.selHandle(true);
 609                 if (cur.pit() == cur.lastpit()
 610                           && cur.textRow().endpos() == cur.lastpos())
 611                         cur.undispatched();
 612                 else {
 613                         tm.cursorNext(cur);
 614                 }
 615                 break;
 616
 617         case LFUN_LINE_BEGIN:
 618         case LFUN_LINE_BEGIN_SELECT:
 619                 needsUpdate |= cur.selHandle(cmd.action == LFUN_LINE_BEGIN_SELECT);
 620                 needsUpdate |= tm.cursorHome(cur);
 621                 break;
 622
 623         case LFUN_LINE_END:
 624         case LFUN_LINE_END_SELECT:
 625                 needsUpdate |= cur.selHandle(cmd.action == LFUN_LINE_END_SELECT);
 626                 needsUpdate |= tm.cursorEnd(cur);
 627                 break;
 628
 629         case LFUN_WORD_RIGHT:
 630         case LFUN_WORD_RIGHT_SELECT:
 631                 //FIXME: for visual cursor mode, really move right
 632                 if (reverseDirectionNeeded(cur)) {
 633                         cmd.action = cmd.action == LFUN_WORD_RIGHT_SELECT ?
 634                                         LFUN_WORD_BACKWARD_SELECT : LFUN_WORD_BACKWARD;
 635                 } else {
 636                         cmd.action = cmd.action == LFUN_WORD_RIGHT_SELECT ?
 637                                         LFUN_WORD_FORWARD_SELECT : LFUN_WORD_FORWARD;
 638                 }
 639                 dispatch(cur, cmd);
 640                 return;
 641
 642         case LFUN_WORD_FORWARD:
 643         case LFUN_WORD_FORWARD_SELECT:
 644                 needsUpdate |= cur.selHandle(cmd.action == LFUN_WORD_FORWARD_SELECT);
 645                 needsUpdate |= cursorForwardOneWord(cur);
 646                 break;
 647
 648         case LFUN_WORD_LEFT:
 649         case LFUN_WORD_LEFT_SELECT:
 650                 //FIXME: for visual cursor mode, really move left
 651                 if (reverseDirectionNeeded(cur)) {
 652                         cmd.action = cmd.action == LFUN_WORD_LEFT_SELECT ?
 653                                         LFUN_WORD_FORWARD_SELECT : LFUN_WORD_FORWARD;
 654                 } else {
 655                         cmd.action = cmd.action == LFUN_WORD_LEFT_SELECT ?
 656                                         LFUN_WORD_BACKWARD_SELECT : LFUN_WORD_BACKWARD;
 657                 }
 658                 dispatch(cur, cmd);
 659                 return;
 660
 661         case LFUN_WORD_BACKWARD:
 662         case LFUN_WORD_BACKWARD_SELECT:
 663                 needsUpdate |= cur.selHandle(cmd.action == LFUN_WORD_BACKWARD_SELECT);
 664                 needsUpdate |= cursorBackwardOneWord(cur);
 665                 break;
 666
 667         case LFUN_WORD_SELECT: {
 668                 selectWord(cur, WHOLE_WORD);
 669                 finishChange(cur, true);
 670                 break;
 671         }
 672
 673         case LFUN_NEW_LINE: {
 674                 // Not allowed by LaTeX (labels or empty par)
 675                 if (cur.pos() > cur.paragraph().beginOfBody()) {
 676                         // this avoids a double undo
 677                         // FIXME: should not be needed, ideally
 678                         if (!cur.selection())
 679                                 cur.recordUndo();
 680                         cap::replaceSelection(cur);
 681                         cur.insert(new InsetNewline);
 682                         cur.posForward();
 683                         moveCursor(cur, false);
 684                 }
 685                 break;
 686         }
 687
 688         case LFUN_LINE_BREAK: {
 689                 // Not allowed by LaTeX (labels or empty par)
 690                 if (cur.pos() > cur.paragraph().beginOfBody()) {
 691                         // this avoids a double undo
 692                         // FIXME: should not be needed, ideally
 693                         if (!cur.selection())
 694                                 cur.recordUndo();
 695                         cap::replaceSelection(cur);
 696                         cur.insert(new InsetLinebreak);
 697                         cur.posForward();
 698                         moveCursor(cur, false);
 699                 }
 700                 break;
 701         }
 702
 703         case LFUN_CHAR_DELETE_FORWARD:
 704                 if (!cur.selection()) {
 705                         if (cur.pos() == cur.paragraph().size())
 706                                 // Par boundary, force full-screen update
 707                                 singleParUpdate = false;
 708                         needsUpdate |= erase(cur);
 709                         cur.resetAnchor();
 710                         // It is possible to make it a lot faster still
 711                         // just comment out the line below...
 712                 } else {
 713                         cutSelection(cur, true, false);
 714                         singleParUpdate = false;
 715                 }
 716                 moveCursor(cur, false);
 717                 break;
 718
 719         case LFUN_DELETE_FORWARD_SKIP:
 720                 // Reverse the effect of LFUN_BREAK_PARAGRAPH_SKIP.
 721                 if (!cur.selection()) {
 722                         if (cur.pos() == cur.lastpos()) {
 723                                 cursorForward(cur);
 724                                 cursorBackward(cur);
 725                         }
 726                         erase(cur);
 727                         cur.resetAnchor();
 728                 } else {
 729                         cutSelection(cur, true, false);
 730                 }
 731                 break;
 732
 733
 734         case LFUN_CHAR_DELETE_BACKWARD:
 735                 if (!cur.selection()) {
 736                         if (bv->getIntl().getTransManager().backspace()) {
 737                                 // Par boundary, full-screen update
 738                                 if (cur.pos() == 0)
 739                                         singleParUpdate = false;
 740                                 needsUpdate |= backspace(cur);
 741                                 cur.resetAnchor();
 742                                 // It is possible to make it a lot faster still
 743                                 // just comment out the line below...
 744                         }
 745                 } else {
 746                         cutSelection(cur, true, false);
 747                         singleParUpdate = false;
 748                 }
 749                 break;
 750
 751         case LFUN_DELETE_BACKWARD_SKIP:
 752                 // Reverse the effect of LFUN_BREAK_PARAGRAPH_SKIP.
 753                 if (!cur.selection()) {
 754                         // FIXME: look here
 755                         //CursorSlice cur = cursor();
 756                         backspace(cur);
 757                         //anchor() = cur;
 758                 } else {
 759                         cutSelection(cur, true, false);
 760                 }
 761                 break;
 762
 763         case LFUN_BREAK_PARAGRAPH:
 764                 cap::replaceSelection(cur);
 765                 breakParagraph(cur, cmd.argument() == "inverse");
 766                 cur.resetAnchor();
 767                 break;
 768
 769         case LFUN_BREAK_PARAGRAPH_SKIP: {
 770                 // When at the beginning of a paragraph, remove
 771                 // indentation.  Otherwise, do the same as LFUN_BREAK_PARAGRAPH.
 772                 cap::replaceSelection(cur);
 773                 if (cur.pos() == 0)
 774                         cur.paragraph().params().labelWidthString(docstring());
 775                 else
 776                         breakParagraph(cur, false);
 777                 cur.resetAnchor();
 778                 break;
 779         }
 780
 781         // TODO
 782         // With the creation of LFUN_PARAGRAPH_PARAMS, this is now redundant,
 783         // as its duties can be performed there. Should it be removed??
 784         // FIXME For now, it can just dispatch LFUN_PARAGRAPH_PARAMS...
 785         case LFUN_PARAGRAPH_SPACING: {
 786                 Paragraph & par = cur.paragraph();
 787                 Spacing::Space cur_spacing = par.params().spacing().getSpace();
 788                 string cur_value = "1.0";
 789                 if (cur_spacing == Spacing::Other)
 790                         cur_value = par.params().spacing().getValueAsString();
 791
 792                 istringstream is(to_utf8(cmd.argument()));
 793                 string tmp;
 794                 is >> tmp;
 795                 Spacing::Space new_spacing = cur_spacing;
 796                 string new_value = cur_value;
 797                 if (tmp.empty()) {
 798                         lyxerr << "Missing argument to `paragraph-spacing'"
 799                                << endl;
 800                 } else if (tmp == "single") {
 801                         new_spacing = Spacing::Single;
 802                 } else if (tmp == "onehalf") {
 803                         new_spacing = Spacing::Onehalf;
 804                 } else if (tmp == "double") {
 805                         new_spacing = Spacing::Double;
 806                 } else if (tmp == "other") {
 807                         new_spacing = Spacing::Other;
 808                         string tmpval = "0.0";
 809                         is >> tmpval;
 810                         lyxerr << "new_value = " << tmpval << endl;
 811                         if (tmpval != "0.0")
 812                                 new_value = tmpval;
 813                 } else if (tmp == "default") {
 814                         new_spacing = Spacing::Default;
 815                 } else {
 816                         lyxerr << to_utf8(_("Unknown spacing argument: "))
 817                                << to_utf8(cmd.argument()) << endl;
 818                 }
 819                 if (cur_spacing != new_spacing || cur_value != new_value)
 820                         par.params().spacing(Spacing(new_spacing, new_value));
 821                 break;
 822         }
 823
 824         case LFUN_INSET_INSERT: {
 825                 cur.recordUndo();
 826                 Inset * inset = createInset(bv->buffer(), cmd);
 827                 if (inset) {
 828                         // FIXME (Abdel 01/02/2006):
 829                         // What follows would be a partial fix for bug 2154:
 830                         //   http://bugzilla.lyx.org/show_bug.cgi?id=2154
 831                         // This automatically put the label inset _after_ a
 832                         // numbered section. It should be possible to extend the mechanism
 833                         // to any kind of LateX environement.
 834                         // The correct way to fix that bug would be at LateX generation.
 835                         // I'll let the code here for reference as it could be used for some
 836                         // other feature like "automatic labelling".
 837                         /*
 838                         Paragraph & par = pars_[cur.pit()];
 839                         if (inset->lyxCode() == LABEL_CODE
 840                                 && par.layout()->labeltype == LABEL_COUNTER) {
 841                                 // Go to the end of the paragraph
 842                                 // Warning: Because of Change-Tracking, the last
 843                                 // position is 'size()' and not 'size()-1':
 844                                 cur.pos() = par.size();
 845                                 // Insert a new paragraph
 846                                 FuncRequest fr(LFUN_BREAK_PARAGRAPH);
 847                                 dispatch(cur, fr);
 848                         }
 849                         */
 850                         if (cur.selection())
 851                                 cutSelection(cur, true, false);
 852                         insertInset(cur, inset);
 853                         cur.posForward();
 854                 }
 855                 break;
 856         }
 857
 858         case LFUN_INSET_DISSOLVE:
 859                 needsUpdate |= dissolveInset(cur);
 860                 break;
 861
 862         case LFUN_INSET_SETTINGS:
 863                 cur.inset().showInsetDialog(bv);
 864                 break;
 865
 866         case LFUN_SPACE_INSERT:
 867                 if (cur.paragraph().layout()->free_spacing)
 868                         insertChar(cur, ' ');
 869                 else {
 870                         doInsertInset(cur, this, cmd, false, false);
 871                         cur.posForward();
 872                 }
 873                 moveCursor(cur, false);
 874                 break;
 875
 876         case LFUN_HYPHENATION_POINT_INSERT:
 877                 specialChar(cur, InsetSpecialChar::HYPHENATION);
 878                 break;
 879
 880         case LFUN_LIGATURE_BREAK_INSERT:
 881                 specialChar(cur, InsetSpecialChar::LIGATURE_BREAK);
 882                 break;
 883
 884         case LFUN_DOTS_INSERT:
 885                 specialChar(cur, InsetSpecialChar::LDOTS);
 886                 break;
 887
 888         case LFUN_END_OF_SENTENCE_PERIOD_INSERT:
 889                 specialChar(cur, InsetSpecialChar::END_OF_SENTENCE);
 890                 break;
 891
 892         case LFUN_MENU_SEPARATOR_INSERT:
 893                 specialChar(cur, InsetSpecialChar::MENU_SEPARATOR);
 894                 break;
 895
 896         case LFUN_WORD_UPCASE:
 897                 changeCase(cur, text_uppercase);
 898                 break;
 899
 900         case LFUN_WORD_LOWCASE:
 901                 changeCase(cur, text_lowercase);
 902                 break;
 903
 904         case LFUN_WORD_CAPITALIZE:
 905                 changeCase(cur, text_capitalization);
 906                 break;
 907
 908         case LFUN_CHARS_TRANSPOSE:
 909                 charsTranspose(cur);
 910                 break;
 911
 912         case LFUN_PASTE:
 913                 cur.message(_("Paste"));
 914                 cap::replaceSelection(cur);
 915                 if (cmd.argument().empty() && !theClipboard().isInternal())
 916                         pasteClipboard(cur, bv->buffer().errorList("Paste"));
 917                 else {
 918                         string const arg(to_utf8(cmd.argument()));
 919                         pasteFromStack(cur, bv->buffer().errorList("Paste"),
 920                                         isStrUnsignedInt(arg) ?
 921                                                 convert<unsigned int>(arg) :
 922                                                 0);
 923                 }
 924                 bv->buffer().errors("Paste");
 925                 cur.clearSelection(); // bug 393
 926                 cur.finishUndo();
 927                 break;
 928
 929         case LFUN_CUT:
 930                 cutSelection(cur, true, true);
 931                 cur.message(_("Cut"));
 932                 break;
 933
 934         case LFUN_COPY:
 935                 copySelection(cur);
 936                 cur.message(_("Copy"));
 937                 break;
 938
 939         case LFUN_SERVER_GET_XY:
 940                 cur.message(from_utf8(
 941                         convert<string>(tm.cursorX(cur.top(), cur.boundary()))
 942                         + ' ' + convert<string>(tm.cursorY(cur.top(), cur.boundary()))));
 943                 break;
 944
 945         case LFUN_SERVER_SET_XY: {
 946                 int x = 0;
 947                 int y = 0;
 948                 istringstream is(to_utf8(cmd.argument()));
 949                 is >> x >> y;
 950                 if (!is)
 951                         lyxerr << "SETXY: Could not parse coordinates in '"
 952                                << to_utf8(cmd.argument()) << std::endl;
 953                 else
 954                         tm.setCursorFromCoordinates(cur, x, y);
 955                 break;
 956         }
 957
 958         case LFUN_SERVER_GET_FONT:
 959                 if (cur.current_font.fontInfo().shape() == ITALIC_SHAPE)
 960                         cur.message(from_ascii("E"));
 961                 else if (cur.current_font.fontInfo().shape() == SMALLCAPS_SHAPE)
 962                         cur.message(from_ascii("N"));
 963                 else
 964                         cur.message(from_ascii("0"));
 965                 break;
 966
 967         case LFUN_SERVER_GET_LAYOUT:
 968                 cur.message(cur.paragraph().layout()->name());
 969                 break;
 970
 971         case LFUN_LAYOUT: {
 972                 docstring layout = cmd.argument();
 973                 LYXERR(Debug::INFO, "LFUN_LAYOUT: (arg) " << to_utf8(layout));
 974
 975                 docstring const old_layout = cur.paragraph().layout()->name();
 976
 977                 // Derive layout number from given argument (string)
 978                 // and current buffer's textclass (number)
 979                 TextClass const & tclass = bv->buffer().params().getTextClass();
 980                 if (layout.empty())
 981                         layout = tclass.defaultLayoutName();
 982                 bool hasLayout = tclass.hasLayout(layout);
 983
 984                 // If the entry is obsolete, use the new one instead.
 985                 if (hasLayout) {
 986                         docstring const & obs = tclass[layout]->obsoleted_by();
 987                         if (!obs.empty())
 988                                 layout = obs;
 989                 }
 990
 991                 if (!hasLayout) {
 992                         cur.errorMessage(from_utf8(N_("Layout ")) + cmd.argument() +
 993                                 from_utf8(N_(" not known")));
 994                         break;
 995                 }
 996
 997                 bool change_layout = (old_layout != layout);
 998
 999                 if (!change_layout && cur.selection() &&
1000                         cur.selBegin().pit() != cur.selEnd().pit())
1001                 {
1002                         pit_type spit = cur.selBegin().pit();
1003                         pit_type epit = cur.selEnd().pit() + 1;
1004                         while (spit != epit) {
1005                                 if (pars_[spit].layout()->name() != old_layout) {
1006                                         change_layout = true;
1007                                         break;
1008                                 }
1009                                 ++spit;
1010                         }
1011                 }
1012
1013                 if (change_layout)
1014                         setLayout(cur, layout);
1015
1016                 break;
1017         }
1018
1019         case LFUN_CLIPBOARD_PASTE:
1020                 cur.clearSelection();
1021                 pasteClipboard(cur, bv->buffer().errorList("Paste"),
1022                                cmd.argument() == "paragraph");
1023                 bv->buffer().errors("Paste");
1024                 break;
1025
1026         case LFUN_PRIMARY_SELECTION_PASTE:
1027                 pasteString(cur, theSelection().get(),
1028                             cmd.argument() == "paragraph");
1029                 break;
1030
1031         case LFUN_UNICODE_INSERT: {
1032                 if (cmd.argument().empty())
1033                         break;
1034                 docstring hexstring = cmd.argument();
1035                 if (lyx::support::isHex(hexstring)) {
1036                         char_type c = lyx::support::hexToInt(hexstring);
1037                         if (c >= 32 && c < 0x10ffff) {
1038                                 lyxerr << "Inserting c: " << c << endl;
1039                                 docstring s = docstring(1, c);
1040                                 lyx::dispatch(FuncRequest(LFUN_SELF_INSERT, s));
1041                         }
1042                 }
1043                 break;
1044         }
1045
1046         case LFUN_QUOTE_INSERT: {
1047                 Paragraph & par = cur.paragraph();
1048                 pos_type pos = cur.pos();
1049                 BufferParams const & bufparams = bv->buffer().params();
1050                 LayoutPtr const & style = par.layout();
1051                 if (!style->pass_thru
1052                     && par.getFontSettings(bufparams, pos).language()->lang() != "hebrew") {
1053                         // this avoids a double undo
1054                         // FIXME: should not be needed, ideally
1055                         if (!cur.selection())
1056                                 cur.recordUndo();
1057                         cap::replaceSelection(cur);
1058                         pos = cur.pos();
1059                         char_type c;
1060                         if (pos == 0)
1061                                 c = ' ';
1062                         else if (cur.prevInset() && cur.prevInset()->isSpace())
1063                                 c = ' ';
1064                         else
1065                                 c = par.getChar(pos - 1);
1066                         string arg = to_utf8(cmd.argument());
1067                         if (arg == "single")
1068                                 cur.insert(new InsetQuotes(c,
1069                                     bufparams.quotes_language,
1070                                     InsetQuotes::SingleQ));
1071                         else
1072                                 cur.insert(new InsetQuotes(c,
1073                                     bufparams.quotes_language,
1074                                     InsetQuotes::DoubleQ));
1075                         cur.posForward();
1076                 }
1077                 else
1078                         lyx::dispatch(FuncRequest(LFUN_SELF_INSERT, "\""));
1079                 break;
1080         }
1081
1082         case LFUN_DATE_INSERT: {
1083                 string const format = cmd.argument().empty()
1084                         ? lyxrc.date_insert_format : to_utf8(cmd.argument());
1085                 string const time = formatted_time(current_time(), format);
1086                 lyx::dispatch(FuncRequest(LFUN_SELF_INSERT, time));
1087                 break;
1088         }
1089
1090         case LFUN_MOUSE_TRIPLE:
1091                 if (cmd.button() == mouse_button::button1) {
1092                         tm.cursorHome(cur);
1093                         cur.resetAnchor();
1094                         tm.cursorEnd(cur);
1095                         cur.setSelection();
1096                         bv->cursor() = cur;
1097                 }
1098                 break;
1099
1100         case LFUN_MOUSE_DOUBLE:
1101                 if (cmd.button() == mouse_button::button1) {
1102                         selectWord(cur, WHOLE_WORD_STRICT);
1103                         bv->cursor() = cur;
1104                 }
1105                 break;
1106
1107         // Single-click on work area
1108         case LFUN_MOUSE_PRESS: {
1109                 // Right click on a footnote flag opens float menu
1110                 // FIXME: Why should we clear the selection in this case?
1111                 if (cmd.button() == mouse_button::button3)
1112                         cur.clearSelection();
1113
1114                 bool do_selection = cmd.button() == mouse_button::button1
1115                         && cmd.argument() == "region-select";
1116                 // Set the cursor
1117                 bool update = bv->mouseSetCursor(cur, do_selection);
1118
1119                 // Insert primary selection with middle mouse
1120                 // if there is a local selection in the current buffer,
1121                 // insert this
1122                 if (cmd.button() == mouse_button::button2) {
1123                         if (cap::selection()) {
1124                                 // Copy the selection buffer to the clipboard
1125                                 // stack, because we want it to appear in the
1126                                 // "Edit->Paste recent" menu.
1127                                 cap::copySelectionToStack();
1128
1129                                 cap::pasteSelection(bv->cursor(),
1130                                                     bv->buffer().errorList("Paste"));
1131                                 bv->buffer().errors("Paste");
1132                                 bv->buffer().markDirty();
1133                                 bv->cursor().finishUndo();
1134                         } else {
1135                                 lyx::dispatch(FuncRequest(LFUN_PRIMARY_SELECTION_PASTE, "paragraph"));
1136                         }
1137                 }
1138
1139                 // we have to update after dEPM triggered
1140                 if (!update && cmd.button() == mouse_button::button1) {
1141                         needsUpdate = false;
1142                         cur.noUpdate();
1143                 }
1144
1145                 break;
1146         }
1147
1148         case LFUN_MOUSE_MOTION: {
1149                 // Only use motion with button 1
1150                 //if (cmd.button() != mouse_button::button1)
1151                 //      return false;
1152
1153                 // ignore motions deeper nested than the real anchor
1154                 Cursor & bvcur = cur.bv().cursor();
1155                 if (!bvcur.anchor_.hasPart(cur)) {
1156                         cur.undispatched();
1157                         break;
1158                 }
1159                 CursorSlice old = bvcur.top();
1160
1161                 int const wh = bv->workHeight();
1162                 int const y = std::max(0, std::min(wh - 1, cmd.y));
1163
1164                 tm.setCursorFromCoordinates(cur, cmd.x, y);
1165                 cur.setTargetX(cmd.x);
1166                 if (cmd.y >= wh)
1167                         lyx::dispatch(FuncRequest(LFUN_DOWN_SELECT));
1168                 else if (cmd.y < 0)
1169                         lyx::dispatch(FuncRequest(LFUN_UP_SELECT));
1170                 // This is to allow jumping over large insets
1171                 if (cur.top() == old) {
1172                         if (cmd.y >= wh)
1173                                 lyx::dispatch(FuncRequest(LFUN_DOWN_SELECT));
1174                         else if (cmd.y < 0)
1175                                 lyx::dispatch(FuncRequest(LFUN_UP_SELECT));
1176                 }
1177
1178                 if (cur.top() == old)
1179                         cur.noUpdate();
1180                 else {
1181                         // FIXME: This is brute force! But without it the selected
1182                         // area is not corrected updated while moving the mouse.
1183                         cur.updateFlags(Update::Force | Update::FitCursor);
1184                         // don't set anchor_
1185                         bvcur.setCursor(cur);
1186                         bvcur.selection() = true;
1187                         //lyxerr << "MOTION: " << bv->cursor() << endl;
1188                 }
1189                 break;
1190         }
1191
1192         case LFUN_MOUSE_RELEASE: {
1193                 if (cmd.button() == mouse_button::button2)
1194                         break;
1195
1196                 if (cmd.button() == mouse_button::button1) {
1197                         // if there is new selection, update persistent
1198                         // selection, otherwise, single click does not
1199                         // clear persistent selection buffer
1200                         if (cur.selection()) {
1201                                 // finish selection
1202                                 // if double click, cur is moved to the end of word by selectWord
1203                                 // but bvcur is current mouse position
1204                                 Cursor & bvcur = cur.bv().cursor();
1205                                 bvcur.selection() = true;
1206                         }
1207                         needsUpdate = false;
1208                         cur.noUpdate();
1209                 }
1210
1211                 break;
1212         }
1213
1214         case LFUN_SELF_INSERT: {
1215                 if (cmd.argument().empty())
1216                         break;
1217
1218                 // Automatically delete the currently selected
1219                 // text and replace it with what is being
1220                 // typed in now. Depends on lyxrc settings
1221                 // "auto_region_delete", which defaults to
1222                 // true (on).
1223
1224                 if (lyxrc.auto_region_delete && cur.selection())
1225                         cutSelection(cur, false, false);
1226
1227                 cur.clearSelection();
1228                 Font const old_font = cur.real_current_font;
1229
1230                 docstring::const_iterator cit = cmd.argument().begin();
1231                 docstring::const_iterator end = cmd.argument().end();
1232                 for (; cit != end; ++cit)
1233                         bv->translateAndInsert(*cit, this, cur);
1234
1235                 cur.resetAnchor();
1236                 moveCursor(cur, false);
1237                 break;
1238         }
1239
1240         case LFUN_HYPERLINK_INSERT: {
1241                 InsetCommandParams p(HYPERLINK_CODE);
1242                 docstring content;
1243                 if (cur.selection()) {
1244                         content = cur.selectionAsString(false);
1245                         cutSelection(cur, true, false);
1246                 }
1247                 p["target"] = (cmd.argument().empty()) ?
1248                         content : cmd.argument();
1249                 string const data = InsetCommandMailer::params2string("href", p);
1250                 if (p["target"].empty()) {
1251                         bv->showDialog("href", data);
1252                 } else {
1253                         FuncRequest fr(LFUN_INSET_INSERT, data);
1254                         dispatch(cur, fr);
1255                 }
1256                 break;
1257         }
1258
1259         case LFUN_LABEL_INSERT: {
1260                 InsetCommandParams p(LABEL_CODE);
1261                 // Try to generate a valid label
1262                 p["name"] = (cmd.argument().empty()) ?
1263                         cur.getPossibleLabel() :
1264                         cmd.argument();
1265                 string const data = InsetCommandMailer::params2string("label", p);
1266
1267                 if (cmd.argument().empty()) {
1268                         bv->showDialog("label", data);
1269                 } else {
1270                         FuncRequest fr(LFUN_INSET_INSERT, data);
1271                         dispatch(cur, fr);
1272                 }
1273                 break;
1274         }
1275
1276         case LFUN_INFO_INSERT: {
1277                 Inset * inset = createInset(cur.bv().buffer(), cmd);
1278                 if (!inset)
1279                         break;
1280                 // if an empty inset is created (cmd.argument() is empty)
1281                 // use current selection as parameter.
1282                 if (cmd.argument().empty() && cur.selection()) {
1283                         // use selected text as info to avoid a separate UI
1284                         docstring ds = cur.selectionAsString(false);
1285                         cutSelection(cur, true, false);
1286                         static_cast<InsetInfo *>(inset)->setInfo(to_utf8(ds));
1287                 }
1288                 insertInset(cur, inset);
1289                 cur.posForward();
1290                 break;
1291         }
1292 #if 0
1293         case LFUN_LIST_INSERT:
1294         case LFUN_THEOREM_INSERT:
1295 #endif
1296         case LFUN_CAPTION_INSERT:
1297         case LFUN_FOOTNOTE_INSERT:
1298                 // Open the inset, and move the current selection
1299                 // inside it.
1300                 doInsertInset(cur, this, cmd, true, true);
1301                 cur.posForward();
1302                 // These insets are numbered.
1303                 updateLabels(bv->buffer());
1304                 break;
1305         case LFUN_NOTE_INSERT:
1306         case LFUN_FLEX_INSERT:
1307         case LFUN_BOX_INSERT:
1308         case LFUN_BRANCH_INSERT:
1309         case LFUN_BIBITEM_INSERT:
1310         case LFUN_ERT_INSERT:
1311         case LFUN_LISTING_INSERT:
1312         case LFUN_MARGINALNOTE_INSERT:
1313         case LFUN_OPTIONAL_INSERT:
1314         case LFUN_ENVIRONMENT_INSERT:
1315                 // Open the inset, and move the current selection
1316                 // inside it.
1317                 doInsertInset(cur, this, cmd, true, true);
1318                 cur.posForward();
1319                 break;
1320
1321         case LFUN_TABULAR_INSERT:
1322                 // if there were no arguments, just open the dialog
1323                 if (doInsertInset(cur, this, cmd, false, true))
1324                         cur.posForward();
1325                 else
1326                         bv->showDialog("tabularcreate");
1327
1328                 break;
1329
1330         case LFUN_FLOAT_INSERT:
1331         case LFUN_FLOAT_WIDE_INSERT:
1332         case LFUN_WRAP_INSERT: {
1333                 bool content = cur.selection();  // will some text be moved into the inset?
1334
1335                 doInsertInset(cur, this, cmd, true, true);
1336                 cur.posForward();
1337                 ParagraphList & pars = cur.text()->paragraphs();
1338
1339                 TextClass const & tclass = bv->buffer().params().getTextClass();
1340
1341                 // add a separate paragraph for the caption inset
1342                 pars.push_back(Paragraph());
1343                 pars.back().setInsetOwner(pars[0].inInset());
1344                 pars.back().layout(tclass.defaultLayout());
1345
1346                 int cap_pit = pars.size() - 1;
1347
1348                 // if an empty inset was created, we create an additional empty
1349                 // paragraph at the bottom so that the user can choose where to put
1350                 // the graphics (or table).
1351                 if (!content) {
1352                         pars.push_back(Paragraph());
1353                         pars.back().setInsetOwner(pars[0].inInset());
1354                         pars.back().layout(tclass.defaultLayout());
1355
1356                 }
1357
1358                 // reposition the cursor to the caption
1359                 cur.pit() = cap_pit;
1360                 cur.pos() = 0;
1361                 // FIXME: This Text/Cursor dispatch handling is a mess!
1362                 // We cannot use Cursor::dispatch here it needs access to up to
1363                 // date metrics.
1364                 FuncRequest cmd_caption(LFUN_CAPTION_INSERT);
1365                 cur.text()->dispatch(cur, cmd_caption);
1366                 cur.updateFlags(Update::Force);
1367                 // FIXME: When leaving the Float (or Wrap) inset we should
1368                 // delete any empty paragraph left above or below the
1369                 // caption.
1370                 break;
1371         }
1372
1373         case LFUN_INDEX_INSERT:
1374                 doInsertInset(cur, this, cmd, true, true);
1375                 cur.posForward();
1376                 break;
1377
1378         case LFUN_NOMENCL_INSERT: {
1379                 FuncRequest cmd1 = cmd;
1380                 if (cmd.argument().empty())
1381                         cmd1 = FuncRequest(cmd,
1382                                 bv->cursor().innerText()->getStringToIndex(bv->cursor()));
1383                 Inset * inset = createInset(cur.bv().buffer(), cmd1);
1384                 if (!inset)
1385                         break;
1386                 cur.recordUndo();
1387                 cur.clearSelection();
1388                 insertInset(cur, inset);
1389                 // Show the dialog for the nomenclature entry, since the
1390                 // description entry still needs to be filled in.
1391                 if (cmd.action == LFUN_NOMENCL_INSERT)
1392                         inset->edit(cur, true);
1393                 cur.posForward();
1394                 break;
1395         }
1396
1397         case LFUN_INDEX_PRINT:
1398         case LFUN_NOMENCL_PRINT:
1399         case LFUN_TOC_INSERT:
1400         case LFUN_HFILL_INSERT:
1401         case LFUN_LINE_INSERT:
1402         case LFUN_NEWPAGE_INSERT:
1403         case LFUN_PAGEBREAK_INSERT:
1404         case LFUN_CLEARPAGE_INSERT:
1405         case LFUN_CLEARDOUBLEPAGE_INSERT:
1406                 // do nothing fancy
1407                 doInsertInset(cur, this, cmd, false, false);
1408                 cur.posForward();
1409                 break;
1410
1411         case LFUN_DEPTH_DECREMENT:
1412                 changeDepth(cur, DEC_DEPTH);
1413                 break;
1414
1415         case LFUN_DEPTH_INCREMENT:
1416                 changeDepth(cur, INC_DEPTH);
1417                 break;
1418
1419         case LFUN_MATH_DISPLAY:
1420                 mathDispatch(cur, cmd, true);
1421                 break;
1422
1423         case LFUN_MATH_IMPORT_SELECTION:
1424         case LFUN_MATH_MODE:
1425                 if (cmd.argument() == "on")
1426                         // don't pass "on" as argument
1427                         mathDispatch(cur, FuncRequest(LFUN_MATH_MODE), false);
1428                 else
1429                         mathDispatch(cur, cmd, false);
1430                 break;
1431
1432         case LFUN_MATH_MACRO:
1433                 if (cmd.argument().empty())
1434                         cur.errorMessage(from_utf8(N_("Missing argument")));
1435                 else {
1436                         string s = to_utf8(cmd.argument());
1437                         string const s1 = token(s, ' ', 1);
1438                         int const nargs = s1.empty() ? 0 : convert<int>(s1);
1439                         string const s2 = token(s, ' ', 2);
1440                         string const type = s2.empty() ? "newcommand" : s2;
1441                         cur.insert(new MathMacroTemplate(from_utf8(token(s, ' ', 0)), nargs, false, from_utf8(type)));
1442                         //cur.nextInset()->edit(cur, true);
1443                 }
1444                 break;
1445
1446         // passthrough hat and underscore outside mathed:
1447         case LFUN_MATH_SUBSCRIPT:
1448                 mathDispatch(cur, FuncRequest(LFUN_SELF_INSERT, "_"), false);
1449                 break;
1450         case LFUN_MATH_SUPERSCRIPT:
1451                 mathDispatch(cur, FuncRequest(LFUN_SELF_INSERT, "^"), false);
1452                 break;
1453
1454         case LFUN_MATH_INSERT:
1455         case LFUN_MATH_MATRIX:
1456         case LFUN_MATH_DELIM:
1457         case LFUN_MATH_BIGDELIM: {
1458                 if (cur.selection())
1459                         cur.clearSelection();
1460                 // FIXME: instead of the above, this one
1461                 // should be used (but it asserts with Bidi enabled)
1462                 // cf. http://bugzilla.lyx.org/show_bug.cgi?id=4055
1463                 // cap::replaceSelection(cur);
1464                 cur.insert(new InsetMathHull(hullSimple));
1465                 checkAndActivateInset(cur, true);
1466                 BOOST_ASSERT(cur.inMathed());
1467                 cur.dispatch(cmd);
1468                 break;
1469         }
1470
1471         case LFUN_FONT_EMPH: {
1472                 Font font(ignore_font, ignore_language);
1473                 font.fontInfo().setEmph(FONT_TOGGLE);
1474                 toggleAndShow(cur, this, font);
1475                 break;
1476         }
1477
1478         case LFUN_FONT_BOLD: {
1479                 Font font(ignore_font, ignore_language);
1480                 font.fontInfo().setSeries(BOLD_SERIES);
1481                 toggleAndShow(cur, this, font);
1482                 break;
1483         }
1484
1485         case LFUN_FONT_NOUN: {
1486                 Font font(ignore_font, ignore_language);
1487                 font.fontInfo().setNoun(FONT_TOGGLE);
1488                 toggleAndShow(cur, this, font);
1489                 break;
1490         }
1491
1492         case LFUN_FONT_TYPEWRITER: {
1493                 Font font(ignore_font, ignore_language);
1494                 font.fontInfo().setFamily(TYPEWRITER_FAMILY); // no good
1495                 toggleAndShow(cur, this, font);
1496                 break;
1497         }
1498
1499         case LFUN_FONT_SANS: {
1500                 Font font(ignore_font, ignore_language);
1501                 font.fontInfo().setFamily(SANS_FAMILY);
1502                 toggleAndShow(cur, this, font);
1503                 break;
1504         }
1505
1506         case LFUN_FONT_ROMAN: {
1507                 Font font(ignore_font, ignore_language);
1508                 font.fontInfo().setFamily(ROMAN_FAMILY);
1509                 toggleAndShow(cur, this, font);
1510                 break;
1511         }
1512
1513         case LFUN_FONT_DEFAULT: {
1514                 Font font(inherit_font, ignore_language);
1515                 toggleAndShow(cur, this, font);
1516                 break;
1517         }
1518
1519         case LFUN_FONT_UNDERLINE: {
1520                 Font font(ignore_font, ignore_language);
1521                 font.fontInfo().setUnderbar(FONT_TOGGLE);
1522                 toggleAndShow(cur, this, font);
1523                 break;
1524         }
1525
1526         case LFUN_FONT_SIZE: {
1527                 Font font(ignore_font, ignore_language);
1528                 setLyXSize(to_utf8(cmd.argument()), font.fontInfo());
1529                 toggleAndShow(cur, this, font);
1530                 break;
1531         }
1532
1533         case LFUN_LANGUAGE: {
1534                 Language const * lang = languages.getLanguage(to_utf8(cmd.argument()));
1535                 if (!lang)
1536                         break;
1537                 Font font(ignore_font, lang);
1538                 toggleAndShow(cur, this, font);
1539                 break;
1540         }
1541
1542         case LFUN_FONT_FREE_APPLY:
1543                 toggleAndShow(cur, this, freefont, toggleall);
1544                 cur.message(_("Character set"));
1545                 break;
1546
1547         // Set the freefont using the contents of \param data dispatched from
1548         // the frontends and apply it at the current cursor location.
1549         case LFUN_FONT_FREE_UPDATE: {
1550                 Font font;
1551                 bool toggle;
1552                 if (font.fromString(to_utf8(cmd.argument()), toggle)) {
1553                         freefont = font;
1554                         toggleall = toggle;
1555                         toggleAndShow(cur, this, freefont, toggleall);
1556                         cur.message(_("Character set"));
1557                 } else {
1558                         lyxerr << "Argument not ok";
1559                 }
1560                 break;
1561         }
1562
1563         case LFUN_FINISHED_LEFT:
1564                 LYXERR(Debug::DEBUG, "handle LFUN_FINISHED_LEFT:\n" << cur);
1565                 if (reverseDirectionNeeded(cur)) {
1566                         ++cur.pos();
1567                         cur.setCurrentFont();
1568                 }
1569                 break;
1570
1571         case LFUN_FINISHED_RIGHT:
1572                 LYXERR(Debug::DEBUG, "handle LFUN_FINISHED_RIGHT:\n" << cur);
1573                 if (!reverseDirectionNeeded(cur)) {
1574                         ++cur.pos();
1575                         cur.setCurrentFont();
1576                 }
1577                 break;
1578
1579         case LFUN_FINISHED_BACKWARD:
1580                 LYXERR(Debug::DEBUG, "handle LFUN_FINISHED_BACKWARD:\n" << cur);
1581                 break;
1582
1583         case LFUN_FINISHED_FORWARD:
1584                 LYXERR(Debug::DEBUG, "handle LFUN_FINISHED_FORWARD:\n" << cur);
1585                 ++cur.pos();
1586                 cur.setCurrentFont();
1587                 break;
1588
1589         case LFUN_LAYOUT_PARAGRAPH: {
1590                 string data;
1591                 params2string(cur.paragraph(), data);
1592                 data = "show\n" + data;
1593                 bv->showDialog("paragraph", data);
1594                 break;
1595         }
1596
1597         case LFUN_PARAGRAPH_UPDATE: {
1598                 string data;
1599                 params2string(cur.paragraph(), data);
1600
1601                 // Will the paragraph accept changes from the dialog?
1602                 bool const accept = !cur.inset().forceDefaultParagraphs(cur.idx());
1603
1604                 data = "update " + convert<string>(accept) + '\n' + data;
1605                 bv->updateDialog("paragraph", data);
1606                 break;
1607         }
1608
1609         case LFUN_ACCENT_UMLAUT:
1610         case LFUN_ACCENT_CIRCUMFLEX:
1611         case LFUN_ACCENT_GRAVE:
1612         case LFUN_ACCENT_ACUTE:
1613         case LFUN_ACCENT_TILDE:
1614         case LFUN_ACCENT_CEDILLA:
1615         case LFUN_ACCENT_MACRON:
1616         case LFUN_ACCENT_DOT:
1617         case LFUN_ACCENT_UNDERDOT:
1618         case LFUN_ACCENT_UNDERBAR:
1619         case LFUN_ACCENT_CARON:
1620         case LFUN_ACCENT_SPECIAL_CARON:
1621         case LFUN_ACCENT_BREVE:
1622         case LFUN_ACCENT_TIE:
1623         case LFUN_ACCENT_HUNGARIAN_UMLAUT:
1624         case LFUN_ACCENT_CIRCLE:
1625         case LFUN_ACCENT_OGONEK:
1626                 theLyXFunc().handleKeyFunc(cmd.action);
1627                 if (!cmd.argument().empty())
1628                         // FIXME: Are all these characters encoded in one byte in utf8?
1629                         bv->translateAndInsert(cmd.argument()[0], this, cur);
1630                 break;
1631
1632         case LFUN_FLOAT_LIST: {
1633                 TextClass const & tclass = bv->buffer().params().getTextClass();
1634                 if (tclass.floats().typeExist(to_utf8(cmd.argument()))) {
1635                         cur.recordUndo();
1636                         if (cur.selection())
1637                                 cutSelection(cur, true, false);
1638                         breakParagraph(cur);
1639
1640                         if (cur.lastpos() != 0) {
1641                                 cursorBackward(cur);
1642                                 breakParagraph(cur);
1643                         }
1644
1645                         setLayout(cur, tclass.defaultLayoutName());
1646                         ParagraphParameters p;
1647                         setParagraphs(cur, p);
1648                         insertInset(cur, new InsetFloatList(to_utf8(cmd.argument())));
1649                         cur.posForward();
1650                 } else {
1651                         lyxerr << "Non-existent float type: "
1652                                << to_utf8(cmd.argument()) << endl;
1653                 }
1654                 break;
1655         }
1656
1657         case LFUN_CHANGE_ACCEPT: {
1658                 acceptOrRejectChanges(cur, ACCEPT);
1659                 break;
1660         }
1661
1662         case LFUN_CHANGE_REJECT: {
1663                 acceptOrRejectChanges(cur, REJECT);
1664                 break;
1665         }
1666
1667         case LFUN_THESAURUS_ENTRY: {
1668                 docstring arg = cmd.argument();
1669                 if (arg.empty()) {
1670                         arg = cur.selectionAsString(false);
1671                         // FIXME
1672                         if (arg.size() > 100 || arg.empty()) {
1673                                 // Get word or selection
1674                                 selectWordWhenUnderCursor(cur, WHOLE_WORD);
1675                                 arg = cur.selectionAsString(false);
1676                         }
1677                 }
1678                 bv->showDialog("thesaurus", to_utf8(arg));
1679                 break;
1680         }
1681
1682         case LFUN_PARAGRAPH_PARAMS_APPLY: {
1683                 // Given data, an encoding of the ParagraphParameters
1684                 // generated in the Paragraph dialog, this function sets
1685                 // the current paragraph, or currently selected paragraphs,
1686                 // appropriately.
1687                 // NOTE: This function overrides all existing settings.
1688                 setParagraphs(cur, cmd.argument());
1689                 cur.message(_("Paragraph layout set"));
1690                 break;
1691         }
1692
1693         case LFUN_PARAGRAPH_PARAMS: {
1694                 // Given data, an encoding of the ParagraphParameters as we'd
1695                 // find them in a LyX file, this function modifies the current paragraph,
1696                 // or currently selected paragraphs.
1697                 // NOTE: This function only modifies, and does not override, existing
1698                 // settings.
1699                 setParagraphs(cur, cmd.argument(), true);
1700                 cur.message(_("Paragraph layout set"));
1701                 break;
1702         }
1703
1704         case LFUN_ESCAPE:
1705                 if (cur.selection()) {
1706                         cur.selection() = false;
1707                 } else {
1708                         cur.undispatched();
1709                         // This used to be LFUN_FINISHED_RIGHT, I think FORWARD is more
1710                         // correct, but I'm not 100% sure -- dov, 071019
1711                         cmd = FuncRequest(LFUN_FINISHED_FORWARD);
1712                 }
1713                 break;
1714
1715         case LFUN_OUTLINE_UP:
1716                 outline(OutlineUp, cur);
1717                 setCursor(cur, cur.pit(), 0);
1718                 updateLabels(cur.buffer());
1719                 needsUpdate = true;
1720                 break;
1721
1722         case LFUN_OUTLINE_DOWN:
1723                 outline(OutlineDown, cur);
1724                 setCursor(cur, cur.pit(), 0);
1725                 updateLabels(cur.buffer());
1726                 needsUpdate = true;
1727                 break;
1728
1729         case LFUN_OUTLINE_IN:
1730                 outline(OutlineIn, cur);
1731                 updateLabels(cur.buffer());
1732                 needsUpdate = true;
1733                 break;
1734
1735         case LFUN_OUTLINE_OUT:
1736                 outline(OutlineOut, cur);
1737                 updateLabels(cur.buffer());
1738                 needsUpdate = true;
1739                 break;
1740
1741         default:
1742                 LYXERR(Debug::ACTION, BOOST_CURRENT_FUNCTION
1743                         << ": Command " << cmd << " not DISPATCHED by Text");
1744                 cur.undispatched();
1745                 break;
1746         }
1747
1748         needsUpdate |= (cur.pos() != cur.lastpos()) && cur.selection();
1749
1750         // FIXME: The cursor flag is reset two lines below
1751         // so we need to check here if some of the LFUN did touch that.
1752         // for now only Text::erase() and Text::backspace() do that.
1753         // The plan is to verify all the LFUNs and then to remove this
1754         // singleParUpdate boolean altogether.
1755         if (cur.result().update() & Update::Force) {
1756                 singleParUpdate = false;
1757                 needsUpdate = true;
1758         }
1759
1760         // FIXME: the following code should go in favor of fine grained
1761         // update flag treatment.
1762         if (singleParUpdate) {
1763                 // Inserting characters does not change par height
1764                 ParagraphMetrics const & pms
1765                         = cur.bv().parMetrics(cur.bottom().text(), cur.bottom().pit());
1766                 if (pms.dim().height() == olddim.height()) {
1767                         // if so, update _only_ this paragraph
1768                         cur.updateFlags(Update::SinglePar |
1769                                 Update::FitCursor);
1770                         return;
1771                 }
1772                 needsUpdate = true;
1773         }
1774
1775         if (!needsUpdate
1776             && &oldTopSlice.inset() == &cur.inset()
1777             && oldTopSlice.idx() == cur.idx()
1778             && !sel // sel is a backup of cur.selection() at the biginning of the function.
1779             && !cur.selection())
1780                 // FIXME: it would be better if we could just do this
1781                 //
1782                 //if (cur.result().update() != Update::FitCursor)
1783                 //      cur.noUpdate();
1784                 //
1785                 // But some LFUNs do not set Update::FitCursor when needed, so we
1786                 // do it for all. This is not very harmfull as FitCursor will provoke
1787                 // a full redraw only if needed but still, a proper review of all LFUN
1788                 // should be done and this needsUpdate boolean can then be removed.
1789                 cur.updateFlags(Update::FitCursor);
1790         else
1791                 cur.updateFlags(Update::Force | Update::FitCursor);
1792 }
1793
1794
1795 bool Text::getStatus(Cursor & cur, FuncRequest const & cmd,
1796                         FuncStatus & flag) const
1797 {
1798         BOOST_ASSERT(cur.text() == this);
1799
1800         Font const & font = cur.real_current_font;
1801         FontInfo const & fontinfo = font.fontInfo();
1802         bool enable = true;
1803         InsetCode code = NO_CODE;
1804
1805         switch (cmd.action) {
1806
1807         case LFUN_DEPTH_DECREMENT:
1808                 enable = changeDepthAllowed(cur, DEC_DEPTH);
1809                 break;
1810
1811         case LFUN_DEPTH_INCREMENT:
1812                 enable = changeDepthAllowed(cur, INC_DEPTH);
1813                 break;
1814
1815         case LFUN_APPENDIX:
1816                 flag.setOnOff(cur.paragraph().params().startOfAppendix());
1817                 return true;
1818
1819         case LFUN_BIBITEM_INSERT:
1820                 enable = (cur.paragraph().layout()->labeltype == LABEL_BIBLIO
1821                           && cur.pos() == 0);
1822                 break;
1823
1824         case LFUN_DIALOG_SHOW_NEW_INSET:
1825                 if (cmd.argument() == "bibitem")
1826                         code = BIBITEM_CODE;
1827                 else if (cmd.argument() == "bibtex")
1828                         code = BIBTEX_CODE;
1829                 else if (cmd.argument() == "box")
1830                         code = BOX_CODE;
1831                 else if (cmd.argument() == "branch")
1832                         code = BRANCH_CODE;
1833                 else if (cmd.argument() == "citation")
1834                         code = CITE_CODE;
1835                 else if (cmd.argument() == "ert")
1836                         code = ERT_CODE;
1837                 else if (cmd.argument() == "external")
1838                         code = EXTERNAL_CODE;
1839                 else if (cmd.argument() == "float")
1840                         code = FLOAT_CODE;
1841                 else if (cmd.argument() == "graphics")
1842                         code = GRAPHICS_CODE;
1843                 else if (cmd.argument() == "href")
1844                         code = HYPERLINK_CODE;
1845                 else if (cmd.argument() == "include")
1846                         code = INCLUDE_CODE;
1847                 else if (cmd.argument() == "index")
1848                         code = INDEX_CODE;
1849                 else if (cmd.argument() == "nomenclature")
1850                         code = NOMENCL_CODE;
1851                 else if (cmd.argument() == "label")
1852                         code = LABEL_CODE;
1853                 else if (cmd.argument() == "note")
1854                         code = NOTE_CODE;
1855                 else if (cmd.argument() == "ref")
1856                         code = REF_CODE;
1857                 else if (cmd.argument() == "toc")
1858                         code = TOC_CODE;
1859                 else if (cmd.argument() == "vspace")
1860                         code = VSPACE_CODE;
1861                 else if (cmd.argument() == "wrap")
1862                         code = WRAP_CODE;
1863                 else if (cmd.argument() == "listings")
1864                         code = LISTINGS_CODE;
1865                 break;
1866
1867         case LFUN_ERT_INSERT:
1868                 code = ERT_CODE;
1869                 break;
1870         case LFUN_LISTING_INSERT:
1871             code = LISTINGS_CODE;
1872                 break;
1873         case LFUN_FOOTNOTE_INSERT:
1874                 code = FOOT_CODE;
1875                 break;
1876         case LFUN_TABULAR_INSERT:
1877                 code = TABULAR_CODE;
1878                 break;
1879         case LFUN_MARGINALNOTE_INSERT:
1880                 code = MARGIN_CODE;
1881                 break;
1882         case LFUN_FLOAT_INSERT:
1883         case LFUN_FLOAT_WIDE_INSERT:
1884                 code = FLOAT_CODE;
1885                 break;
1886         case LFUN_WRAP_INSERT:
1887                 code = WRAP_CODE;
1888                 break;
1889         case LFUN_FLOAT_LIST:
1890                 code = FLOAT_LIST_CODE;
1891                 break;
1892 #if 0
1893         case LFUN_LIST_INSERT:
1894                 code = LIST_CODE;
1895                 break;
1896         case LFUN_THEOREM_INSERT:
1897                 code = THEOREM_CODE;
1898                 break;
1899 #endif
1900         case LFUN_CAPTION_INSERT:
1901                 code = CAPTION_CODE;
1902                 break;
1903         case LFUN_NOTE_INSERT:
1904                 code = NOTE_CODE;
1905                 break;
1906         case LFUN_FLEX_INSERT: {
1907                 code = FLEX_CODE;
1908                 string s = cmd.getArg(0);
1909                 InsetLayout il =  cur.buffer().params().getTextClass().insetlayout(from_utf8(s));
1910                 if (il.lyxtype != "charstyle" &&
1911                     il.lyxtype != "custom" &&
1912                     il.lyxtype != "element" &&
1913                     il.lyxtype != "standard")
1914                         enable = false;
1915                 break;
1916                 }
1917         case LFUN_BOX_INSERT:
1918                 code = BOX_CODE;
1919                 break;
1920         case LFUN_BRANCH_INSERT:
1921                 code = BRANCH_CODE;
1922                 if (cur.buffer().masterBuffer()->params().branchlist().empty())
1923                         enable = false;
1924                 break;
1925         case LFUN_LABEL_INSERT:
1926                 code = LABEL_CODE;
1927                 break;
1928         case LFUN_INFO_INSERT:
1929                 code = INFO_CODE;
1930                 break;
1931         case LFUN_OPTIONAL_INSERT:
1932                 code = OPTARG_CODE;
1933                 enable = cur.paragraph().insetList().count(OPTARG_CODE)
1934                         < cur.paragraph().layout()->optionalargs;
1935                 break;
1936         case LFUN_ENVIRONMENT_INSERT:
1937                 code = BOX_CODE;
1938                 break;
1939         case LFUN_INDEX_INSERT:
1940                 code = INDEX_CODE;
1941                 break;
1942         case LFUN_INDEX_PRINT:
1943                 code = INDEX_PRINT_CODE;
1944                 break;
1945         case LFUN_NOMENCL_INSERT:
1946                 code = NOMENCL_CODE;
1947                 break;
1948         case LFUN_NOMENCL_PRINT:
1949                 code = NOMENCL_PRINT_CODE;
1950                 break;
1951         case LFUN_TOC_INSERT:
1952                 code = TOC_CODE;
1953                 break;
1954         case LFUN_HYPERLINK_INSERT:
1955                 code = HYPERLINK_CODE;
1956                 break;
1957         case LFUN_QUOTE_INSERT:
1958                 // always allow this, since we will inset a raw quote
1959                 // if an inset is not allowed.
1960                 break;
1961         case LFUN_HYPHENATION_POINT_INSERT:
1962         case LFUN_LIGATURE_BREAK_INSERT:
1963         case LFUN_HFILL_INSERT:
1964         case LFUN_MENU_SEPARATOR_INSERT:
1965         case LFUN_DOTS_INSERT:
1966         case LFUN_END_OF_SENTENCE_PERIOD_INSERT:
1967                 code = SPECIALCHAR_CODE;
1968                 break;
1969         case LFUN_SPACE_INSERT:
1970                 // slight hack: we know this is allowed in math mode
1971                 if (cur.inTexted())
1972                         code = SPACE_CODE;
1973                 break;
1974
1975         case LFUN_INSET_MODIFY:
1976                 // We need to disable this, because we may get called for a
1977                 // tabular cell via
1978                 // InsetTabular::getStatus() -> InsetText::getStatus()
1979                 // and we don't handle LFUN_INSET_MODIFY.
1980                 enable = false;
1981                 break;
1982
1983         case LFUN_FONT_EMPH:
1984                 flag.setOnOff(fontinfo.emph() == FONT_ON);
1985                 return true;
1986
1987         case LFUN_FONT_NOUN:
1988                 flag.setOnOff(fontinfo.noun() == FONT_ON);
1989                 return true;
1990
1991         case LFUN_FONT_BOLD:
1992                 flag.setOnOff(fontinfo.series() == BOLD_SERIES);
1993                 return true;
1994
1995         case LFUN_FONT_SANS:
1996                 flag.setOnOff(fontinfo.family() == SANS_FAMILY);
1997                 return true;
1998
1999         case LFUN_FONT_ROMAN:
2000                 flag.setOnOff(fontinfo.family() == ROMAN_FAMILY);
2001                 return true;
2002
2003         case LFUN_FONT_TYPEWRITER:
2004                 flag.setOnOff(fontinfo.family() == TYPEWRITER_FAMILY);
2005                 return true;
2006
2007         case LFUN_CUT:
2008         case LFUN_COPY:
2009                 enable = cur.selection();
2010                 break;
2011
2012         case LFUN_PASTE:
2013                 if (cmd.argument().empty()) {
2014                         if (theClipboard().isInternal())
2015                                 enable = cap::numberOfSelections() > 0;
2016                         else
2017                                 enable = !theClipboard().empty();
2018                 } else {
2019                         string const arg = to_utf8(cmd.argument());
2020                         if (isStrUnsignedInt(arg)) {
2021                                 unsigned int n = convert<unsigned int>(arg);
2022                                 enable = cap::numberOfSelections() > n;
2023                         } else
2024                                 // unknown argument
2025                                 enable = false;
2026                 }
2027                 break;
2028
2029         case LFUN_CLIPBOARD_PASTE:
2030                 enable = !theClipboard().empty();
2031                 break;
2032
2033         case LFUN_PRIMARY_SELECTION_PASTE:
2034                 enable = cur.selection() || !theSelection().empty();
2035                 break;
2036
2037         case LFUN_PARAGRAPH_MOVE_UP:
2038                 enable = cur.pit() > 0 && !cur.selection();
2039                 break;
2040
2041         case LFUN_PARAGRAPH_MOVE_DOWN:
2042                 enable = cur.pit() < cur.lastpit() && !cur.selection();
2043                 break;
2044
2045         case LFUN_INSET_DISSOLVE:
2046                 if (!cmd.argument().empty()) {
2047                         InsetLayout il = cur.inset().getLayout(cur.buffer().params());
2048                         enable = cur.inset().lyxCode() == FLEX_CODE
2049                                  && il.lyxtype == to_utf8(cmd.argument());
2050                 } else {
2051                         enable = !isMainText(cur.bv().buffer())
2052                                  && cur.inset().nargs() == 1;
2053                 }
2054                 break;
2055
2056         case LFUN_CHANGE_ACCEPT:
2057         case LFUN_CHANGE_REJECT:
2058                 // TODO: context-sensitive enabling of LFUN_CHANGE_ACCEPT/REJECT
2059                 // In principle, these LFUNs should only be enabled if there
2060                 // is a change at the current position/in the current selection.
2061                 // However, without proper optimizations, this will inevitably
2062                 // result in unacceptable performance - just imagine a user who
2063                 // wants to select the complete content of a long document.
2064                 enable = true;
2065                 break;
2066
2067         case LFUN_OUTLINE_UP:
2068         case LFUN_OUTLINE_DOWN:
2069         case LFUN_OUTLINE_IN:
2070         case LFUN_OUTLINE_OUT:
2071                 enable = (cur.paragraph().layout()->toclevel != Layout::NOT_IN_TOC);
2072                 break;
2073
2074         case LFUN_WORD_DELETE_FORWARD:
2075         case LFUN_WORD_DELETE_BACKWARD:
2076         case LFUN_LINE_DELETE:
2077         case LFUN_WORD_FORWARD:
2078         case LFUN_WORD_BACKWARD:
2079         case LFUN_WORD_RIGHT:
2080         case LFUN_WORD_LEFT:
2081         case LFUN_CHAR_FORWARD:
2082         case LFUN_CHAR_FORWARD_SELECT:
2083         case LFUN_CHAR_BACKWARD:
2084         case LFUN_CHAR_BACKWARD_SELECT:
2085         case LFUN_CHAR_LEFT:
2086         case LFUN_CHAR_LEFT_SELECT:
2087         case LFUN_CHAR_RIGHT:
2088         case LFUN_CHAR_RIGHT_SELECT:
2089         case LFUN_UP:
2090         case LFUN_UP_SELECT:
2091         case LFUN_DOWN:
2092         case LFUN_DOWN_SELECT:
2093         case LFUN_PARAGRAPH_UP_SELECT:
2094         case LFUN_PARAGRAPH_DOWN_SELECT:
2095         case LFUN_SCREEN_UP_SELECT:
2096         case LFUN_SCREEN_DOWN_SELECT:
2097         case LFUN_LINE_BEGIN_SELECT:
2098         case LFUN_LINE_END_SELECT:
2099         case LFUN_WORD_FORWARD_SELECT:
2100         case LFUN_WORD_BACKWARD_SELECT:
2101         case LFUN_WORD_RIGHT_SELECT:
2102         case LFUN_WORD_LEFT_SELECT:
2103         case LFUN_WORD_SELECT:
2104         case LFUN_PARAGRAPH_UP:
2105         case LFUN_PARAGRAPH_DOWN:
2106         case LFUN_LINE_BEGIN:
2107         case LFUN_LINE_BREAK:
2108         case LFUN_LINE_END:
2109         case LFUN_NEW_LINE:
2110         case LFUN_CHAR_DELETE_FORWARD:
2111         case LFUN_DELETE_FORWARD_SKIP:
2112         case LFUN_CHAR_DELETE_BACKWARD:
2113         case LFUN_DELETE_BACKWARD_SKIP:
2114         case LFUN_BREAK_PARAGRAPH:
2115         case LFUN_BREAK_PARAGRAPH_SKIP:
2116         case LFUN_PARAGRAPH_SPACING:
2117         case LFUN_INSET_INSERT:
2118         case LFUN_WORD_UPCASE:
2119         case LFUN_WORD_LOWCASE:
2120         case LFUN_WORD_CAPITALIZE:
2121         case LFUN_CHARS_TRANSPOSE:
2122         case LFUN_SERVER_GET_XY:
2123         case LFUN_SERVER_SET_XY:
2124         case LFUN_SERVER_GET_FONT:
2125         case LFUN_SERVER_GET_LAYOUT:
2126         case LFUN_LAYOUT:
2127         case LFUN_DATE_INSERT:
2128         case LFUN_SELF_INSERT:
2129         case LFUN_LINE_INSERT:
2130         case LFUN_NEWPAGE_INSERT:
2131         case LFUN_PAGEBREAK_INSERT:
2132         case LFUN_CLEARPAGE_INSERT:
2133         case LFUN_CLEARDOUBLEPAGE_INSERT:
2134         case LFUN_MATH_DISPLAY:
2135         case LFUN_MATH_IMPORT_SELECTION:
2136         case LFUN_MATH_MODE:
2137         case LFUN_MATH_MACRO:
2138         case LFUN_MATH_MATRIX:
2139         case LFUN_MATH_DELIM:
2140         case LFUN_MATH_BIGDELIM:
2141         case LFUN_MATH_INSERT:
2142         case LFUN_MATH_SUBSCRIPT:
2143         case LFUN_MATH_SUPERSCRIPT:
2144         case LFUN_FONT_DEFAULT:
2145         case LFUN_FONT_UNDERLINE:
2146         case LFUN_FONT_SIZE:
2147         case LFUN_LANGUAGE:
2148         case LFUN_FONT_FREE_APPLY:
2149         case LFUN_FONT_FREE_UPDATE:
2150         case LFUN_LAYOUT_PARAGRAPH:
2151         case LFUN_PARAGRAPH_UPDATE:
2152         case LFUN_ACCENT_UMLAUT:
2153         case LFUN_ACCENT_CIRCUMFLEX:
2154         case LFUN_ACCENT_GRAVE:
2155         case LFUN_ACCENT_ACUTE:
2156         case LFUN_ACCENT_TILDE:
2157         case LFUN_ACCENT_CEDILLA:
2158         case LFUN_ACCENT_MACRON:
2159         case LFUN_ACCENT_DOT:
2160         case LFUN_ACCENT_UNDERDOT:
2161         case LFUN_ACCENT_UNDERBAR:
2162         case LFUN_ACCENT_CARON:
2163         case LFUN_ACCENT_SPECIAL_CARON:
2164         case LFUN_ACCENT_BREVE:
2165         case LFUN_ACCENT_TIE:
2166         case LFUN_ACCENT_HUNGARIAN_UMLAUT:
2167         case LFUN_ACCENT_CIRCLE:
2168         case LFUN_ACCENT_OGONEK:
2169         case LFUN_THESAURUS_ENTRY:
2170         case LFUN_PARAGRAPH_PARAMS_APPLY:
2171         case LFUN_PARAGRAPH_PARAMS:
2172         case LFUN_ESCAPE:
2173         case LFUN_BUFFER_END:
2174         case LFUN_BUFFER_BEGIN:
2175         case LFUN_BUFFER_BEGIN_SELECT:
2176         case LFUN_BUFFER_END_SELECT:
2177         case LFUN_UNICODE_INSERT:
2178                 // these are handled in our dispatch()
2179                 enable = true;
2180                 break;
2181
2182         default:
2183                 return false;
2184         }
2185
2186         if (code != NO_CODE
2187             && (cur.empty() || !cur.inset().insetAllowed(code)))
2188                 enable = false;
2189
2190         flag.enabled(enable);
2191         return true;
2192 }
2193
2194
2195 void Text::pasteString(Cursor & cur, docstring const & clip,
2196                 bool asParagraphs)
2197 {
2198         cur.clearSelection();
2199         if (!clip.empty()) {
2200                 cur.recordUndo();
2201                 if (asParagraphs)
2202                         insertStringAsParagraphs(cur, clip);
2203                 else
2204                         insertStringAsLines(cur, clip);
2205         }
2206 }
2207
2208 } // namespace lyx