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 "TextMetrics.h"
  48 #include "VSpace.h"
  49 #include "ParIterator.h"
  50
  51 #include "frontends/Clipboard.h"
  52 #include "frontends/Selection.h"
  53
  54 #include "insets/InsetCollapsable.h"
  55 #include "insets/InsetCommand.h"
  56 #include "insets/InsetFloatList.h"
  57 #include "insets/InsetNewline.h"
  58 #include "insets/InsetQuotes.h"
  59 #include "insets/InsetSpecialChar.h"
  60 #include "insets/InsetText.h"
  61 #include "insets/InsetInfo.h"
  62
  63 #include "support/lstrings.h"
  64 #include "support/lyxlib.h"
  65 #include "support/convert.h"
  66 #include "support/lyxtime.h"
  67
  68 #include "mathed/InsetMathHull.h"
  69 #include "mathed/MathMacroTemplate.h"
  70
  71 #include <boost/current_function.hpp>
  72 #include <boost/next_prior.hpp>
  73
  74 #include <clocale>
  75 #include <sstream>
  76
  77 using std::endl;
  78 using std::string;
  79 using std::istringstream;
  80 using std::ostringstream;
  81
  82 namespace lyx {
  83
  84 using cap::copySelection;
  85 using cap::cutSelection;
  86 using cap::pasteFromStack;
  87 using cap::pasteClipboard;
  88 using cap::replaceSelection;
  89
  90 using support::isStrUnsignedInt;
  91 using support::token;
  92
  93 // globals...
  94 static Font freefont(ignore_font);
  95 static bool toggleall = false;
  96
  97 static void toggleAndShow(Cursor & cur, Text * text,
  98         Font const & font, bool toggleall = true)
  99 {
 100         text->toggleFree(cur, font, toggleall);
 101
 102         if (font.language() != ignore_language ||
 103             font.fontInfo().number() != FONT_IGNORE) {
 104                 TextMetrics const & tm = cur.bv().textMetrics(text);
 105                 if (cur.boundary() != tm.isRTLBoundary(cur.pit(), cur.pos(),
 106                                                        cur.real_current_font))
 107                         text->setCursor(cur, cur.pit(), cur.pos(),
 108                                         false, !cur.boundary());
 109         }
 110 }
 111
 112
 113 static void moveCursor(Cursor & cur, bool selecting)
 114 {
 115         if (selecting || cur.mark())
 116                 cur.setSelection();
 117 }
 118
 119
 120 static void finishChange(Cursor & cur, bool selecting)
 121 {
 122         cur.finishUndo();
 123         moveCursor(cur, selecting);
 124 }
 125
 126
 127 static void mathDispatch(Cursor & cur, FuncRequest const & cmd, bool display)
 128 {
 129         cur.recordUndo();
 130         docstring sel = cur.selectionAsString(false);
 131
 132         // It may happen that sel is empty but there is a selection
 133         replaceSelection(cur);
 134
 135         if (sel.empty()) {
 136 #ifdef ENABLE_ASSERTIONS
 137                 const int old_pos = cur.pos();
 138 #endif
 139                 cur.insert(new InsetMathHull(hullSimple));
 140                 BOOST_ASSERT(old_pos == cur.pos());
 141                 cur.nextInset()->edit(cur, true);
 142                 // don't do that also for LFUN_MATH_MODE
 143                 // unless you want end up with always changing
 144                 // to mathrm when opening an inlined inset --
 145                 // I really hate "LyXfunc overloading"...
 146                 if (display)
 147                         cur.dispatch(FuncRequest(LFUN_MATH_DISPLAY));
 148                 // Avoid an unnecessary undo step if cmd.argument
 149                 // is empty
 150                 if (!cmd.argument().empty())
 151                         cur.dispatch(FuncRequest(LFUN_MATH_INSERT,
 152                                                  cmd.argument()));
 153         } else {
 154                 // create a macro if we see "\\newcommand"
 155                 // somewhere, and an ordinary formula
 156                 // otherwise
 157                 if (sel.find(from_ascii("\\newcommand")) == string::npos
 158                                 && sel.find(from_ascii("\\def")) == string::npos)
 159                 {
 160                         InsetMathHull * formula = new InsetMathHull;
 161                         istringstream is(to_utf8(sel));
 162                         Lexer lex(0, 0);
 163                         lex.setStream(is);
 164                         formula->read(cur.buffer(), lex);
 165                         if (formula->getType() == hullNone)
 166                                 // Don't create pseudo formulas if
 167                                 // delimiters are left out
 168                                 formula->mutate(hullSimple);
 169                         cur.insert(formula);
 170                 } else {
 171                         cur.insert(new MathMacroTemplate(sel));
 172                 }
 173         }
 174         cur.message(from_utf8(N_("Math editor mode")));
 175 }
 176
 177
 178 static void specialChar(Cursor & cur, InsetSpecialChar::Kind kind)
 179 {
 180         cur.recordUndo();
 181         cap::replaceSelection(cur);
 182         cur.insert(new InsetSpecialChar(kind));
 183         cur.posForward();
 184 }
 185
 186
 187 static bool doInsertInset(Cursor & cur, Text * text,
 188         FuncRequest const & cmd, bool edit, bool pastesel)
 189 {
 190         Inset * inset = createInset(cur.bv().buffer(), cmd);
 191         if (!inset)
 192                 return false;
 193
 194         if (InsetCollapsable * ci = inset->asInsetCollapsable())
 195                 ci->setLayout(cur.bv().buffer().params());
 196
 197         cur.recordUndo();
 198         if (cmd.action == LFUN_INDEX_INSERT) {
 199                 docstring ds = support::subst(text->getStringToIndex(cur), '\n', ' ');
 200                 text->insertInset(cur, inset);
 201                 if (edit)
 202                         inset->edit(cur, true);
 203                 // Now put this into inset
 204                 static_cast<InsetCollapsable *>(inset)->text_.insertStringAsParagraphs(cur, ds);
 205         } else {
 206                 bool gotsel = false;
 207                 if (cur.selection()) {
 208                         lyx::dispatch(FuncRequest(LFUN_CUT));
 209                         gotsel = true;
 210                 }
 211                 text->insertInset(cur, inset);
 212
 213                 if (edit)
 214                         inset->edit(cur, true);
 215
 216                 if (gotsel && pastesel) {
 217                         lyx::dispatch(FuncRequest(LFUN_PASTE, "0"));
 218                         InsetText * insetText = dynamic_cast<InsetText *>(inset);
 219                         if (insetText && !insetText->allowMultiPar()
 220                             || cur.lastpit() == 0) {
 221                                 // reset first par to default
 222                                 LayoutPtr const layout =
 223                                         cur.buffer().params().getTextClass().defaultLayout();
 224                                 cur.text()->paragraphs().begin()->layout(layout);
 225                                 cur.pos() = 0;
 226                                 cur.pit() = 0;
 227                                 // Merge multiple paragraphs -- hack
 228                                 while (cur.lastpit() > 0) {
 229                                         mergeParagraph(cur.buffer().params(),
 230                                                 cur.text()->paragraphs(), 0);
 231                                 }
 232                         } else {
 233                                 // reset surrounding par to default
 234                                 docstring const layoutname =
 235                                         cur.buffer().params().getTextClass().defaultLayoutName();
 236                                 cur.leaveInset(*inset);
 237                                 text->setLayout(cur, layoutname);
 238                         }
 239                 }
 240         }
 241         return true;
 242 }
 243
 244
 245 string const freefont2string()
 246 {
 247         return freefont.toString(toggleall);
 248 }
 249
 250
 251 /// the type of outline operation
 252 enum OutlineOp {
 253         OutlineUp, // Move this header with text down
 254         OutlineDown,   // Move this header with text up
 255         OutlineIn, // Make this header deeper
 256         OutlineOut // Make this header shallower
 257 };
 258
 259
 260 static void outline(OutlineOp mode, Cursor & cur)
 261 {
 262         Buffer & buf = cur.buffer();
 263         pit_type & pit = cur.pit();
 264         ParagraphList & pars = buf.text().paragraphs();
 265         ParagraphList::iterator bgn = pars.begin();
 266         // The first paragraph of the area to be copied:
 267         ParagraphList::iterator start = boost::next(bgn, pit);
 268         // The final paragraph of area to be copied:
 269         ParagraphList::iterator finish = start;
 270         ParagraphList::iterator end = pars.end();
 271
 272         TextClass::const_iterator lit =
 273                 buf.params().getTextClass().begin();
 274         TextClass::const_iterator const lend =
 275                 buf.params().getTextClass().end();
 276
 277         int const thistoclevel = start->layout()->toclevel;
 278         int toclevel;
 279         switch (mode) {
 280                 case OutlineUp: {
 281                         // Move out (down) from this section header
 282                         if (finish != end)
 283                                 ++finish;
 284                         // Seek the one (on same level) below
 285                         for (; finish != end; ++finish) {
 286                                 toclevel = finish->layout()->toclevel;
 287                                 if (toclevel != Layout::NOT_IN_TOC
 288                                     && toclevel <= thistoclevel) {
 289                                         break;
 290                                 }
 291                         }
 292                         ParagraphList::iterator dest = start;
 293                         // Move out (up) from this header
 294                         if (dest == bgn)
 295                                 break;
 296                         // Search previous same-level header above
 297                         do {
 298                                 --dest;
 299                                 toclevel = dest->layout()->toclevel;
 300                         } while(dest != bgn
 301                                 && (toclevel == Layout::NOT_IN_TOC
 302                                     || toclevel > thistoclevel));
 303                         // Not found; do nothing
 304                         if (toclevel == Layout::NOT_IN_TOC || toclevel > thistoclevel)
 305                                 break;
 306                         pit_type const newpit = std::distance(bgn, dest);
 307                         pit_type const len = std::distance(start, finish);
 308                         pit_type const deletepit = pit + len;
 309                         buf.undo().recordUndo(cur, ATOMIC_UNDO, newpit, deletepit - 1);
 310                         pars.insert(dest, start, finish);
 311                         start = boost::next(pars.begin(), deletepit);
 312                         pit = newpit;
 313                         pars.erase(start, finish);
 314                         break;
 315                 }
 316                 case OutlineDown: {
 317                         // Go down out of current header:
 318                         if (finish != end)
 319                                 ++finish;
 320                         // Find next same-level header:
 321                         for (; finish != end; ++finish) {
 322                                 toclevel = finish->layout()->toclevel;
 323                                 if (toclevel != Layout::NOT_IN_TOC && toclevel <= thistoclevel)
 324                                         break;
 325                         }
 326                         ParagraphList::iterator dest = finish;
 327                         // Go one down from *this* header:
 328                         if (dest != end)
 329                                 ++dest;
 330                         else
 331                                 break;
 332                         // Go further down to find header to insert in front of:
 333                         for (; dest != end; ++dest) {
 334                                 toclevel = dest->layout()->toclevel;
 335                                 if (toclevel != Layout::NOT_IN_TOC && toclevel <= thistoclevel)
 336                                         break;
 337                         }
 338                         // One such was found:
 339                         pit_type newpit = std::distance(bgn, dest);
 340                         pit_type const len = std::distance(start, finish);
 341                         buf.undo().recordUndo(cur, ATOMIC_UNDO, pit, newpit - 1);
 342                         pars.insert(dest, start, finish);
 343                         start = boost::next(bgn, pit);
 344                         pit = newpit - len;
 345                         pars.erase(start, finish);
 346                         break;
 347                 }
 348                 case OutlineIn:
 349                         buf.undo().recordUndo(cur);
 350                         for (; lit != lend; ++lit) {
 351                                 if ((*lit)->toclevel == thistoclevel + 1 &&
 352                                     start->layout()->labeltype == (*lit)->labeltype) {
 353                                         start->layout((*lit));
 354                                         break;
 355                                 }
 356                         }
 357                         break;
 358                 case OutlineOut:
 359                         buf.undo().recordUndo(cur);
 360                         for (; lit != lend; ++lit) {
 361                                 if ((*lit)->toclevel == thistoclevel - 1 &&
 362                                     start->layout()->labeltype == (*lit)->labeltype) {
 363                                         start->layout((*lit));
 364                                         break;
 365                                 }
 366                         }
 367                         break;
 368                 default:
 369                         break;
 370         }
 371 }
 372
 373
 374 void Text::number(Cursor & cur)
 375 {
 376         FontInfo font = ignore_font;
 377         font.setNumber(FONT_TOGGLE);
 378         toggleAndShow(cur, this, Font(font));
 379 }
 380
 381
 382 bool Text::isRTL(Buffer const & buffer, Paragraph const & par) const
 383 {
 384         return par.isRTL(buffer.params());
 385 }
 386
 387
 388 void Text::dispatch(Cursor & cur, FuncRequest & cmd)
 389 {
 390         LYXERR(Debug::ACTION) << "Text::dispatch: cmd: " << cmd << endl;
 391
 392         // FIXME: We use the update flag to indicates wether a singlePar or a
 393         // full screen update is needed. We reset it here but shall we restore it
 394         // at the end?
 395         cur.noUpdate();
 396
 397         BOOST_ASSERT(cur.text() == this);
 398         BufferView * bv = &cur.bv();
 399         TextMetrics & tm = cur.bv().textMetrics(this);
 400         CursorSlice oldTopSlice = cur.top();
 401         bool oldBoundary = cur.boundary();
 402         bool sel = cur.selection();
 403         // Signals that, even if needsUpdate == false, an update of the
 404         // cursor paragraph is required
 405         bool singleParUpdate = lyxaction.funcHasFlag(cmd.action,
 406                 LyXAction::SingleParUpdate);
 407         // Signals that a full-screen update is required
 408         bool needsUpdate = !(lyxaction.funcHasFlag(cmd.action,
 409                 LyXAction::NoUpdate) || singleParUpdate);
 410         // Remember the old paragraph metric (_outer_ paragraph!)
 411         ParagraphMetrics const & pm = cur.bv().parMetrics(
 412                 cur.bottom().text(), cur.bottom().pit());
 413         Dimension olddim = pm.dim();
 414
 415         switch (cmd.action) {
 416
 417         case LFUN_PARAGRAPH_MOVE_DOWN: {
 418                 pit_type const pit = cur.pit();
 419                 recUndo(cur, pit, pit + 1);
 420                 cur.finishUndo();
 421                 std::swap(pars_[pit], pars_[pit + 1]);
 422                 updateLabels(cur.buffer());
 423                 needsUpdate = true;
 424                 ++cur.pit();
 425                 break;
 426         }
 427
 428         case LFUN_PARAGRAPH_MOVE_UP: {
 429                 pit_type const pit = cur.pit();
 430                 recUndo(cur, pit - 1, pit);
 431                 cur.finishUndo();
 432                 std::swap(pars_[pit], pars_[pit - 1]);
 433                 updateLabels(cur.buffer());
 434                 --cur.pit();
 435                 needsUpdate = true;
 436                 break;
 437         }
 438
 439         case LFUN_APPENDIX: {
 440                 Paragraph & par = cur.paragraph();
 441                 bool start = !par.params().startOfAppendix();
 442
 443 // FIXME: The code below only makes sense at top level.
 444 // Should LFUN_APPENDIX be restricted to top-level paragraphs?
 445                 // ensure that we have only one start_of_appendix in this document
 446                 // FIXME: this don't work for multipart document!
 447                 for (pit_type tmp = 0, end = pars_.size(); tmp != end; ++tmp) {
 448                         if (pars_[tmp].params().startOfAppendix()) {
 449                                 recUndo(cur, tmp);
 450                                 pars_[tmp].params().startOfAppendix(false);
 451                                 break;
 452                         }
 453                 }
 454
 455                 cur.recordUndo();
 456                 par.params().startOfAppendix(start);
 457
 458                 // we can set the refreshing parameters now
 459                 updateLabels(cur.buffer());
 460                 break;
 461         }
 462
 463         case LFUN_WORD_DELETE_FORWARD:
 464                 if (cur.selection()) {
 465                         cutSelection(cur, true, false);
 466                 } else
 467                         deleteWordForward(cur);
 468                 finishChange(cur, false);
 469                 break;
 470
 471         case LFUN_WORD_DELETE_BACKWARD:
 472                 if (cur.selection()) {
 473                         cutSelection(cur, true, false);
 474                 } else
 475                         deleteWordBackward(cur);
 476                 finishChange(cur, false);
 477                 break;
 478
 479         case LFUN_LINE_DELETE:
 480                 if (cur.selection()) {
 481                         cutSelection(cur, true, false);
 482                 } else
 483                         tm.deleteLineForward(cur);
 484                 finishChange(cur, false);
 485                 break;
 486
 487         case LFUN_BUFFER_BEGIN:
 488         case LFUN_BUFFER_BEGIN_SELECT:
 489                 needsUpdate |= cur.selHandle(cmd.action == LFUN_BUFFER_BEGIN_SELECT);
 490                 if (cur.depth() == 1) {
 491                         needsUpdate |= cursorTop(cur);
 492                 } else {
 493                         cur.undispatched();
 494                 }
 495                 break;
 496
 497         case LFUN_BUFFER_END:
 498         case LFUN_BUFFER_END_SELECT:
 499                 needsUpdate |= cur.selHandle(cmd.action == LFUN_BUFFER_END_SELECT);
 500                 if (cur.depth() == 1) {
 501                         needsUpdate |= cursorBottom(cur);
 502                 } else {
 503                         cur.undispatched();
 504                 }
 505                 break;
 506
 507         case LFUN_CHAR_FORWARD:
 508         case LFUN_CHAR_FORWARD_SELECT:
 509                 //lyxerr << BOOST_CURRENT_FUNCTION
 510                 //       << " LFUN_CHAR_FORWARD[SEL]:\n" << cur << endl;
 511                 needsUpdate |= cur.selHandle(cmd.action == LFUN_CHAR_FORWARD_SELECT);
 512                 needsUpdate |= cursorForward(cur);
 513
 514                 if (!needsUpdate && oldTopSlice == cur.top()
 515                                 && cur.boundary() == oldBoundary) {
 516                         cur.undispatched();
 517                         cmd = FuncRequest(LFUN_FINISHED_FORWARD);
 518                 }
 519                 break;
 520
 521         case LFUN_CHAR_BACKWARD:
 522         case LFUN_CHAR_BACKWARD_SELECT:
 523                 //lyxerr << "handle LFUN_CHAR_BACKWARD[_SELECT]:\n" << cur << endl;
 524                 needsUpdate |= cur.selHandle(cmd.action == LFUN_CHAR_BACKWARD_SELECT);
 525                 needsUpdate |= cursorBackward(cur);
 526
 527                 if (!needsUpdate && oldTopSlice == cur.top()
 528                         && cur.boundary() == oldBoundary) {
 529                         cur.undispatched();
 530                         cmd = FuncRequest(LFUN_FINISHED_BACKWARD);
 531                 }
 532                 break;
 533
 534         case LFUN_CHAR_LEFT:
 535         case LFUN_CHAR_LEFT_SELECT:
 536                 //FIXME: for visual cursor, really move left
 537                 if (reverseDirectionNeeded(cur)) {
 538                         lyx::dispatch(FuncRequest(
 539                                 cmd.action == LFUN_CHAR_LEFT_SELECT ?
 540                                         LFUN_CHAR_FORWARD_SELECT : LFUN_CHAR_FORWARD));
 541                 } else {
 542                         lyx::dispatch(FuncRequest(
 543                                 cmd.action == LFUN_CHAR_LEFT_SELECT ?
 544                                         LFUN_CHAR_BACKWARD_SELECT : LFUN_CHAR_BACKWARD));
 545                 }
 546                 break;
 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                         lyx::dispatch(FuncRequest(
 553                                 cmd.action == LFUN_CHAR_RIGHT_SELECT ?
 554                                         LFUN_CHAR_BACKWARD_SELECT : LFUN_CHAR_BACKWARD));
 555                 } else {
 556                         lyx::dispatch(FuncRequest(
 557                                 cmd.action == LFUN_CHAR_RIGHT_SELECT ?
 558                                         LFUN_CHAR_FORWARD_SELECT : LFUN_CHAR_FORWARD));
 559                 }
 560                 break;
 561
 562         case LFUN_UP_SELECT:
 563         case LFUN_DOWN_SELECT:
 564         case LFUN_UP:
 565         case LFUN_DOWN: {
 566                 // stop/start the selection
 567                 bool select = cmd.action == LFUN_DOWN_SELECT ||
 568                         cmd.action == LFUN_UP_SELECT;
 569                 cur.selHandle(select);
 570
 571                 // move cursor up/down
 572                 bool up = cmd.action == LFUN_UP_SELECT || cmd.action == LFUN_UP;
 573                 bool const successful = cur.upDownInText(up, needsUpdate);
 574                 if (successful) {
 575                         // notify insets which were left and get their update flags
 576                         notifyCursorLeaves(cur.beforeDispatchCursor(), cur);
 577                         cur.fixIfBroken();
 578
 579                         // redraw if you leave mathed (for the decorations)
 580                         needsUpdate |= cur.beforeDispatchCursor().inMathed();
 581                 } else
 582                         cur.undispatched();
 583
 584                 break;
 585         }
 586
 587         case LFUN_PARAGRAPH_UP:
 588         case LFUN_PARAGRAPH_UP_SELECT:
 589                 needsUpdate |= cur.selHandle(cmd.action == LFUN_PARAGRAPH_UP_SELECT);
 590                 needsUpdate |= cursorUpParagraph(cur);
 591                 break;
 592
 593         case LFUN_PARAGRAPH_DOWN:
 594         case LFUN_PARAGRAPH_DOWN_SELECT:
 595                 needsUpdate |= cur.selHandle(cmd.action == LFUN_PARAGRAPH_DOWN_SELECT);
 596                 needsUpdate |= cursorDownParagraph(cur);
 597                 break;
 598
 599         case LFUN_SCREEN_UP_SELECT:
 600                 needsUpdate |= cur.selHandle(true);
 601                 if (cur.pit() == 0 && cur.textRow().pos() == 0)
 602                         cur.undispatched();
 603                 else {
 604                         tm.cursorPrevious(cur);
 605                 }
 606                 break;
 607
 608         case LFUN_SCREEN_DOWN_SELECT:
 609                 needsUpdate |= cur.selHandle(true);
 610                 if (cur.pit() == cur.lastpit()
 611                           && cur.textRow().endpos() == cur.lastpos())
 612                         cur.undispatched();
 613                 else {
 614                         tm.cursorNext(cur);
 615                 }
 616                 break;
 617
 618         case LFUN_LINE_BEGIN:
 619         case LFUN_LINE_BEGIN_SELECT:
 620                 needsUpdate |= cur.selHandle(cmd.action == LFUN_LINE_BEGIN_SELECT);
 621                 needsUpdate |= tm.cursorHome(cur);
 622                 break;
 623
 624         case LFUN_LINE_END:
 625         case LFUN_LINE_END_SELECT:
 626                 needsUpdate |= cur.selHandle(cmd.action == LFUN_LINE_END_SELECT);
 627                 needsUpdate |= tm.cursorEnd(cur);
 628                 break;
 629
 630         case LFUN_WORD_RIGHT:
 631         case LFUN_WORD_RIGHT_SELECT:
 632                 //FIXME: for visual cursor mode, really move right
 633                 if (reverseDirectionNeeded(cur)) {
 634                         lyx::dispatch(FuncRequest(
 635                                 cmd.action == LFUN_WORD_RIGHT_SELECT ?
 636                                         LFUN_WORD_BACKWARD_SELECT : LFUN_WORD_BACKWARD));
 637                 } else {
 638                         lyx::dispatch(FuncRequest(
 639                                 cmd.action == LFUN_WORD_RIGHT_SELECT ?
 640                                         LFUN_WORD_FORWARD_SELECT : LFUN_WORD_FORWARD));
 641                 }
 642                 break;
 643
 644         case LFUN_WORD_FORWARD:
 645         case LFUN_WORD_FORWARD_SELECT:
 646                 needsUpdate |= cur.selHandle(cmd.action == LFUN_WORD_FORWARD_SELECT);
 647                 needsUpdate |= cursorForwardOneWord(cur);
 648                 break;
 649
 650         case LFUN_WORD_LEFT:
 651         case LFUN_WORD_LEFT_SELECT:
 652                 //FIXME: for visual cursor mode, really move left
 653                 if (reverseDirectionNeeded(cur)) {
 654                         lyx::dispatch(FuncRequest(
 655                                 cmd.action == LFUN_WORD_LEFT_SELECT ?
 656                                         LFUN_WORD_FORWARD_SELECT : LFUN_WORD_FORWARD));
 657                 } else {
 658                         lyx::dispatch(FuncRequest(
 659                                 cmd.action == LFUN_WORD_LEFT_SELECT ?
 660                                         LFUN_WORD_BACKWARD_SELECT : LFUN_WORD_BACKWARD));
 661                 }
 662                 break;
 663
 664         case LFUN_WORD_BACKWARD:
 665         case LFUN_WORD_BACKWARD_SELECT:
 666                 needsUpdate |= cur.selHandle(cmd.action == LFUN_WORD_BACKWARD_SELECT);
 667                 needsUpdate |= cursorBackwardOneWord(cur);
 668                 break;
 669
 670         case LFUN_WORD_SELECT: {
 671                 selectWord(cur, WHOLE_WORD);
 672                 finishChange(cur, true);
 673                 break;
 674         }
 675
 676         case LFUN_BREAK_LINE: {
 677                 // Not allowed by LaTeX (labels or empty par)
 678                 if (cur.pos() > cur.paragraph().beginOfBody()) {
 679                         // this avoids a double undo
 680                         // FIXME: should not be needed, ideally
 681                         if (!cur.selection())
 682                                 cur.recordUndo();
 683                         cap::replaceSelection(cur);
 684                         cur.insert(new InsetNewline);
 685                         cur.posForward();
 686                         moveCursor(cur, false);
 687                 }
 688                 break;
 689         }
 690
 691         case LFUN_CHAR_DELETE_FORWARD:
 692                 if (!cur.selection()) {
 693                         if (cur.pos() == cur.paragraph().size())
 694                                 // Par boundary, force full-screen update
 695                                 singleParUpdate = false;
 696                         needsUpdate |= erase(cur);
 697                         cur.resetAnchor();
 698                         // It is possible to make it a lot faster still
 699                         // just comment out the line below...
 700                 } else {
 701                         cutSelection(cur, true, false);
 702                         singleParUpdate = false;
 703                 }
 704                 moveCursor(cur, false);
 705                 break;
 706
 707         case LFUN_DELETE_FORWARD_SKIP:
 708                 // Reverse the effect of LFUN_BREAK_PARAGRAPH_SKIP.
 709                 if (!cur.selection()) {
 710                         if (cur.pos() == cur.lastpos()) {
 711                                 cursorForward(cur);
 712                                 cursorBackward(cur);
 713                         }
 714                         erase(cur);
 715                         cur.resetAnchor();
 716                 } else {
 717                         cutSelection(cur, true, false);
 718                 }
 719                 break;
 720
 721
 722         case LFUN_CHAR_DELETE_BACKWARD:
 723                 if (!cur.selection()) {
 724                         if (bv->getIntl().getTransManager().backspace()) {
 725                                 // Par boundary, full-screen update
 726                                 if (cur.pos() == 0)
 727                                         singleParUpdate = false;
 728                                 needsUpdate |= backspace(cur);
 729                                 cur.resetAnchor();
 730                                 // It is possible to make it a lot faster still
 731                                 // just comment out the line below...
 732                         }
 733                 } else {
 734                         cutSelection(cur, true, false);
 735                         singleParUpdate = false;
 736                 }
 737                 break;
 738
 739         case LFUN_DELETE_BACKWARD_SKIP:
 740                 // Reverse the effect of LFUN_BREAK_PARAGRAPH_SKIP.
 741                 if (!cur.selection()) {
 742                         // FIXME: look here
 743                         //CursorSlice cur = cursor();
 744                         backspace(cur);
 745                         //anchor() = cur;
 746                 } else {
 747                         cutSelection(cur, true, false);
 748                 }
 749                 break;
 750
 751         case LFUN_BREAK_PARAGRAPH:
 752                 cap::replaceSelection(cur);
 753                 breakParagraph(cur, cmd.argument() == "inverse");
 754                 cur.resetAnchor();
 755                 break;
 756
 757         case LFUN_BREAK_PARAGRAPH_SKIP: {
 758                 // When at the beginning of a paragraph, remove
 759                 // indentation.  Otherwise, do the same as LFUN_BREAK_PARAGRAPH.
 760                 cap::replaceSelection(cur);
 761                 if (cur.pos() == 0)
 762                         cur.paragraph().params().labelWidthString(docstring());
 763                 else
 764                         breakParagraph(cur, false);
 765                 cur.resetAnchor();
 766                 break;
 767         }
 768
 769         // TODO
 770         // With the creation of LFUN_PARAGRAPH_PARAMS, this is now redundant,
 771         // as its duties can be performed there. Should it be removed??
 772         // FIXME For now, it can just dispatch LFUN_PARAGRAPH_PARAMS...
 773         case LFUN_PARAGRAPH_SPACING: {
 774                 Paragraph & par = cur.paragraph();
 775                 Spacing::Space cur_spacing = par.params().spacing().getSpace();
 776                 string cur_value = "1.0";
 777                 if (cur_spacing == Spacing::Other)
 778                         cur_value = par.params().spacing().getValueAsString();
 779
 780                 istringstream is(to_utf8(cmd.argument()));
 781                 string tmp;
 782                 is >> tmp;
 783                 Spacing::Space new_spacing = cur_spacing;
 784                 string new_value = cur_value;
 785                 if (tmp.empty()) {
 786                         lyxerr << "Missing argument to `paragraph-spacing'"
 787                                << endl;
 788                 } else if (tmp == "single") {
 789                         new_spacing = Spacing::Single;
 790                 } else if (tmp == "onehalf") {
 791                         new_spacing = Spacing::Onehalf;
 792                 } else if (tmp == "double") {
 793                         new_spacing = Spacing::Double;
 794                 } else if (tmp == "other") {
 795                         new_spacing = Spacing::Other;
 796                         string tmpval = "0.0";
 797                         is >> tmpval;
 798                         lyxerr << "new_value = " << tmpval << endl;
 799                         if (tmpval != "0.0")
 800                                 new_value = tmpval;
 801                 } else if (tmp == "default") {
 802                         new_spacing = Spacing::Default;
 803                 } else {
 804                         lyxerr << to_utf8(_("Unknown spacing argument: "))
 805                                << to_utf8(cmd.argument()) << endl;
 806                 }
 807                 if (cur_spacing != new_spacing || cur_value != new_value)
 808                         par.params().spacing(Spacing(new_spacing, new_value));
 809                 break;
 810         }
 811
 812         case LFUN_INSET_INSERT: {
 813                 cur.recordUndo();
 814                 Inset * inset = createInset(bv->buffer(), cmd);
 815                 if (inset) {
 816                         // FIXME (Abdel 01/02/2006):
 817                         // What follows would be a partial fix for bug 2154:
 818                         //   http://bugzilla.lyx.org/show_bug.cgi?id=2154
 819                         // This automatically put the label inset _after_ a
 820                         // numbered section. It should be possible to extend the mechanism
 821                         // to any kind of LateX environement.
 822                         // The correct way to fix that bug would be at LateX generation.
 823                         // I'll let the code here for reference as it could be used for some
 824                         // other feature like "automatic labelling".
 825                         /*
 826                         Paragraph & par = pars_[cur.pit()];
 827                         if (inset->lyxCode() == LABEL_CODE
 828                                 && par.layout()->labeltype == LABEL_COUNTER) {
 829                                 // Go to the end of the paragraph
 830                                 // Warning: Because of Change-Tracking, the last
 831                                 // position is 'size()' and not 'size()-1':
 832                                 cur.pos() = par.size();
 833                                 // Insert a new paragraph
 834                                 FuncRequest fr(LFUN_BREAK_PARAGRAPH);
 835                                 dispatch(cur, fr);
 836                         }
 837                         */
 838                         if (cur.selection())
 839                                 cutSelection(cur, true, false);
 840                         insertInset(cur, inset);
 841                         cur.posForward();
 842                 }
 843                 break;
 844         }
 845
 846         case LFUN_INSET_DISSOLVE:
 847                 needsUpdate |= dissolveInset(cur);
 848                 break;
 849
 850         case LFUN_INSET_SETTINGS:
 851                 cur.inset().showInsetDialog(bv);
 852                 break;
 853
 854         case LFUN_SPACE_INSERT:
 855                 if (cur.paragraph().layout()->free_spacing)
 856                         insertChar(cur, ' ');
 857                 else {
 858                         doInsertInset(cur, this, cmd, false, false);
 859                         cur.posForward();
 860                 }
 861                 moveCursor(cur, false);
 862                 break;
 863
 864         case LFUN_HYPHENATION_POINT_INSERT:
 865                 specialChar(cur, InsetSpecialChar::HYPHENATION);
 866                 break;
 867
 868         case LFUN_LIGATURE_BREAK_INSERT:
 869                 specialChar(cur, InsetSpecialChar::LIGATURE_BREAK);
 870                 break;
 871
 872         case LFUN_DOTS_INSERT:
 873                 specialChar(cur, InsetSpecialChar::LDOTS);
 874                 break;
 875
 876         case LFUN_END_OF_SENTENCE_PERIOD_INSERT:
 877                 specialChar(cur, InsetSpecialChar::END_OF_SENTENCE);
 878                 break;
 879
 880         case LFUN_MENU_SEPARATOR_INSERT:
 881                 specialChar(cur, InsetSpecialChar::MENU_SEPARATOR);
 882                 break;
 883
 884         case LFUN_WORD_UPCASE:
 885                 changeCase(cur, text_uppercase);
 886                 break;
 887
 888         case LFUN_WORD_LOWCASE:
 889                 changeCase(cur, text_lowercase);
 890                 break;
 891
 892         case LFUN_WORD_CAPITALIZE:
 893                 changeCase(cur, text_capitalization);
 894                 break;
 895
 896         case LFUN_CHARS_TRANSPOSE:
 897                 charsTranspose(cur);
 898                 break;
 899
 900         case LFUN_PASTE:
 901                 cur.message(_("Paste"));
 902                 cap::replaceSelection(cur);
 903                 if (cmd.argument().empty() && !theClipboard().isInternal())
 904                         pasteClipboard(cur, bv->buffer().errorList("Paste"));
 905                 else {
 906                         string const arg(to_utf8(cmd.argument()));
 907                         pasteFromStack(cur, bv->buffer().errorList("Paste"),
 908                                         isStrUnsignedInt(arg) ?
 909                                                 convert<unsigned int>(arg) :
 910                                                 0);
 911                 }
 912                 bv->buffer().errors("Paste");
 913                 cur.clearSelection(); // bug 393
 914                 cur.finishUndo();
 915                 break;
 916
 917         case LFUN_CUT:
 918                 cutSelection(cur, true, true);
 919                 cur.message(_("Cut"));
 920                 break;
 921
 922         case LFUN_COPY:
 923                 copySelection(cur);
 924                 cur.message(_("Copy"));
 925                 break;
 926
 927         case LFUN_SERVER_GET_XY:
 928                 cur.message(from_utf8(
 929                         convert<string>(tm.cursorX(cur.top(), cur.boundary()))
 930                         + ' ' + convert<string>(tm.cursorY(cur.top(), cur.boundary()))));
 931                 break;
 932
 933         case LFUN_SERVER_SET_XY: {
 934                 int x = 0;
 935                 int y = 0;
 936                 istringstream is(to_utf8(cmd.argument()));
 937                 is >> x >> y;
 938                 if (!is)
 939                         lyxerr << "SETXY: Could not parse coordinates in '"
 940                                << to_utf8(cmd.argument()) << std::endl;
 941                 else
 942                         tm.setCursorFromCoordinates(cur, x, y);
 943                 break;
 944         }
 945
 946         case LFUN_SERVER_GET_FONT:
 947                 if (cur.current_font.fontInfo().shape() == ITALIC_SHAPE)
 948                         cur.message(from_ascii("E"));
 949                 else if (cur.current_font.fontInfo().shape() == SMALLCAPS_SHAPE)
 950                         cur.message(from_ascii("N"));
 951                 else
 952                         cur.message(from_ascii("0"));
 953                 break;
 954
 955         case LFUN_SERVER_GET_LAYOUT:
 956                 cur.message(cur.paragraph().layout()->name());
 957                 break;
 958
 959         case LFUN_LAYOUT: {
 960                 docstring layout = cmd.argument();
 961                 LYXERR(Debug::INFO) << "LFUN_LAYOUT: (arg) " << to_utf8(layout) << endl;
 962
 963                 docstring const old_layout = cur.paragraph().layout()->name();
 964
 965                 // Derive layout number from given argument (string)
 966                 // and current buffer's textclass (number)
 967                 TextClass const & tclass = bv->buffer().params().getTextClass();
 968                 if (layout.empty())
 969                         layout = tclass.defaultLayoutName();
 970                 bool hasLayout = tclass.hasLayout(layout);
 971
 972                 // If the entry is obsolete, use the new one instead.
 973                 if (hasLayout) {
 974                         docstring const & obs = tclass[layout]->obsoleted_by();
 975                         if (!obs.empty())
 976                                 layout = obs;
 977                 }
 978
 979                 if (!hasLayout) {
 980                         cur.errorMessage(from_utf8(N_("Layout ")) + cmd.argument() +
 981                                 from_utf8(N_(" not known")));
 982                         break;
 983                 }
 984
 985                 bool change_layout = (old_layout != layout);
 986
 987                 if (!change_layout && cur.selection() &&
 988                         cur.selBegin().pit() != cur.selEnd().pit())
 989                 {
 990                         pit_type spit = cur.selBegin().pit();
 991                         pit_type epit = cur.selEnd().pit() + 1;
 992                         while (spit != epit) {
 993                                 if (pars_[spit].layout()->name() != old_layout) {
 994                                         change_layout = true;
 995                                         break;
 996                                 }
 997                                 ++spit;
 998                         }
 999                 }
1000
1001                 if (change_layout)
1002                         setLayout(cur, layout);
1003
1004                 break;
1005         }
1006
1007         case LFUN_CLIPBOARD_PASTE:
1008                 cur.clearSelection();
1009                 pasteClipboard(cur, bv->buffer().errorList("Paste"),
1010                                cmd.argument() == "paragraph");
1011                 bv->buffer().errors("Paste");
1012                 break;
1013
1014         case LFUN_PRIMARY_SELECTION_PASTE:
1015                 pasteString(cur, theSelection().get(),
1016                             cmd.argument() == "paragraph");
1017                 break;
1018
1019         case LFUN_UNICODE_INSERT: {
1020                 if (cmd.argument().empty())
1021                         break;
1022                 docstring hexstring = cmd.argument();
1023                 if (lyx::support::isHex(hexstring)) {
1024                         char_type c = lyx::support::hexToInt(hexstring);
1025                         if (c >= 32 && c < 0x10ffff) {
1026                                 lyxerr << "Inserting c: " << c << endl;
1027                                 docstring s = docstring(1, c);
1028                                 lyx::dispatch(FuncRequest(LFUN_SELF_INSERT, s));
1029                         }
1030                 }
1031                 break;
1032         }
1033
1034         case LFUN_QUOTE_INSERT: {
1035                 Paragraph & par = cur.paragraph();
1036                 pos_type pos = cur.pos();
1037                 BufferParams const & bufparams = bv->buffer().params();
1038                 LayoutPtr const & style = par.layout();
1039                 if (!style->pass_thru
1040                     && par.getFontSettings(bufparams, pos).language()->lang() != "hebrew") {
1041                         // this avoids a double undo
1042                         // FIXME: should not be needed, ideally
1043                         if (!cur.selection())
1044                                 cur.recordUndo();
1045                         cap::replaceSelection(cur);
1046                         pos = cur.pos();
1047                         char_type c;
1048                         if (pos == 0)
1049                                 c = ' ';
1050                         else if (cur.prevInset() && cur.prevInset()->isSpace())
1051                                 c = ' ';
1052                         else
1053                                 c = par.getChar(pos - 1);
1054                         string arg = to_utf8(cmd.argument());
1055                         if (arg == "single")
1056                                 cur.insert(new InsetQuotes(c,
1057                                     bufparams.quotes_language,
1058                                     InsetQuotes::SingleQ));
1059                         else
1060                                 cur.insert(new InsetQuotes(c,
1061                                     bufparams.quotes_language,
1062                                     InsetQuotes::DoubleQ));
1063                         cur.posForward();
1064                 }
1065                 else
1066                         lyx::dispatch(FuncRequest(LFUN_SELF_INSERT, "\""));
1067                 break;
1068         }
1069
1070         case LFUN_DATE_INSERT: {
1071                 string const format = cmd.argument().empty()
1072                         ? lyxrc.date_insert_format : to_utf8(cmd.argument());
1073                 string const time = formatted_time(current_time(), format);
1074                 lyx::dispatch(FuncRequest(LFUN_SELF_INSERT, time));
1075                 break;
1076         }
1077
1078         case LFUN_MOUSE_TRIPLE:
1079                 if (cmd.button() == mouse_button::button1) {
1080                         tm.cursorHome(cur);
1081                         cur.resetAnchor();
1082                         tm.cursorEnd(cur);
1083                         cur.setSelection();
1084                         bv->cursor() = cur;
1085                 }
1086                 break;
1087
1088         case LFUN_MOUSE_DOUBLE:
1089                 if (cmd.button() == mouse_button::button1) {
1090                         selectWord(cur, WHOLE_WORD_STRICT);
1091                         bv->cursor() = cur;
1092                 }
1093                 break;
1094
1095         // Single-click on work area
1096         case LFUN_MOUSE_PRESS: {
1097                 // Right click on a footnote flag opens float menu
1098                 // FIXME: Why should we clear the selection in this case?
1099                 if (cmd.button() == mouse_button::button3)
1100                         cur.clearSelection();
1101
1102                 bool do_selection = cmd.button() == mouse_button::button1
1103                         && cmd.argument() == "region-select";
1104                 // Set the cursor
1105                 bool update = bv->mouseSetCursor(cur, do_selection);
1106
1107                 // Insert primary selection with middle mouse
1108                 // if there is a local selection in the current buffer,
1109                 // insert this
1110                 if (cmd.button() == mouse_button::button2) {
1111                         if (cap::selection()) {
1112                                 // Copy the selection buffer to the clipboard
1113                                 // stack, because we want it to appear in the
1114                                 // "Edit->Paste recent" menu.
1115                                 cap::copySelectionToStack();
1116
1117                                 cap::pasteSelection(bv->cursor(),
1118                                                     bv->buffer().errorList("Paste"));
1119                                 bv->buffer().errors("Paste");
1120                                 bv->buffer().markDirty();
1121                                 bv->cursor().finishUndo();
1122                         } else {
1123                                 lyx::dispatch(FuncRequest(LFUN_PRIMARY_SELECTION_PASTE, "paragraph"));
1124                         }
1125                 }
1126
1127                 // we have to update after dEPM triggered
1128                 if (!update && cmd.button() == mouse_button::button1) {
1129                         needsUpdate = false;
1130                         cur.noUpdate();
1131                 }
1132
1133                 break;
1134         }
1135
1136         case LFUN_MOUSE_MOTION: {
1137                 // Only use motion with button 1
1138                 //if (cmd.button() != mouse_button::button1)
1139                 //      return false;
1140
1141                 // ignore motions deeper nested than the real anchor
1142                 Cursor & bvcur = cur.bv().cursor();
1143                 if (bvcur.anchor_.hasPart(cur)) {
1144                         CursorSlice old = bvcur.top();
1145
1146                         int const wh = bv->workHeight();
1147                         int const y = std::max(0, std::min(wh - 1, cmd.y));
1148
1149                         tm.setCursorFromCoordinates(cur, cmd.x, y);
1150                         cur.setTargetX(cmd.x);
1151                         if (cmd.y >= wh)
1152                                 lyx::dispatch(FuncRequest(LFUN_DOWN_SELECT));
1153                         else if (cmd.y < 0)
1154                                 lyx::dispatch(FuncRequest(LFUN_UP_SELECT));
1155                         // This is to allow jumping over large insets
1156                         if (cur.top() == old) {
1157                                 if (cmd.y >= wh)
1158                                         lyx::dispatch(FuncRequest(LFUN_DOWN_SELECT));
1159                                 else if (cmd.y < 0)
1160                                         lyx::dispatch(FuncRequest(LFUN_UP_SELECT));
1161                         }
1162
1163                         if (cur.top() == old)
1164                                 cur.noUpdate();
1165                         else {
1166                                 // don't set anchor_
1167                                 bvcur.setCursor(cur);
1168                                 bvcur.selection() = true;
1169                                 //lyxerr << "MOTION: " << bv->cursor() << endl;
1170                         }
1171
1172                 } else
1173                         cur.undispatched();
1174                 break;
1175         }
1176
1177         case LFUN_MOUSE_RELEASE: {
1178                 if (cmd.button() == mouse_button::button2)
1179                         break;
1180
1181                 if (cmd.button() == mouse_button::button1) {
1182                         // if there is new selection, update persistent
1183                         // selection, otherwise, single click does not
1184                         // clear persistent selection buffer
1185                         if (cur.selection()) {
1186                                 // finish selection
1187                                 // if double click, cur is moved to the end of word by selectWord
1188                                 // but bvcur is current mouse position
1189                                 Cursor & bvcur = cur.bv().cursor();
1190                                 bvcur.selection() = true;
1191                         }
1192                         needsUpdate = false;
1193                         cur.noUpdate();
1194                 }
1195
1196                 break;
1197         }
1198
1199         case LFUN_SELF_INSERT: {
1200                 if (cmd.argument().empty())
1201                         break;
1202
1203                 // Automatically delete the currently selected
1204                 // text and replace it with what is being
1205                 // typed in now. Depends on lyxrc settings
1206                 // "auto_region_delete", which defaults to
1207                 // true (on).
1208
1209                 if (lyxrc.auto_region_delete && cur.selection()) {
1210                         pit_type const begpit = cur.selBegin().pit();
1211                         pit_type const endpit = cur.selEnd().pit();
1212                         cutSelection(cur, false, false);
1213                         // When a selection spans multiple paragraphs, the metrics update
1214                         // mechanism sometimes fail to detect that a full update is needed.
1215                         // In this case, we force the full update:
1216                         // (see http://bugzilla.lyx.org/show_bug.cgi?id=4317)
1217                         if (isMainText(cur.bv().buffer()) && begpit != endpit)
1218                                 cur.updateFlags(Update::Force);
1219                 }
1220
1221                 cur.clearSelection();
1222                 Font const old_font = cur.real_current_font;
1223
1224                 docstring::const_iterator cit = cmd.argument().begin();
1225                 docstring::const_iterator end = cmd.argument().end();
1226                 for (; cit != end; ++cit)
1227                         bv->translateAndInsert(*cit, this, cur);
1228
1229                 cur.resetAnchor();
1230                 moveCursor(cur, false);
1231                 break;
1232         }
1233
1234         case LFUN_HYPERLINK_INSERT: {
1235                 InsetCommandParams p(HYPERLINK_CODE);
1236                 docstring content;
1237                 if (cur.selection()) {
1238                         content = cur.selectionAsString(false);
1239                         cutSelection(cur, true, false);
1240                 }
1241                 p["target"] = (cmd.argument().empty()) ?
1242                         content : cmd.argument();
1243                 string const data = InsetCommandMailer::params2string("href", p);
1244                 if (p["target"].empty()) {
1245                         bv->showInsetDialog("href", data, 0);
1246                 } else {
1247                         FuncRequest fr(LFUN_INSET_INSERT, data);
1248                         dispatch(cur, fr);
1249                 }
1250                 break;
1251         }
1252
1253         case LFUN_LABEL_INSERT: {
1254                 InsetCommandParams p(LABEL_CODE);
1255                 // Try to generate a valid label
1256                 p["name"] = (cmd.argument().empty()) ?
1257                         cur.getPossibleLabel() :
1258                         cmd.argument();
1259                 string const data = InsetCommandMailer::params2string("label", p);
1260
1261                 if (cmd.argument().empty()) {
1262                         bv->showInsetDialog("label", data, 0);
1263                 } else {
1264                         FuncRequest fr(LFUN_INSET_INSERT, data);
1265                         dispatch(cur, fr);
1266                 }
1267                 break;
1268         }
1269
1270         case LFUN_INFO_INSERT: {
1271                 Inset * inset = createInset(cur.bv().buffer(), cmd);
1272                 if (!inset)
1273                         break;
1274                 // if an empty inset is created (cmd.argument() is empty)
1275                 // use current selection as parameter.
1276                 if (cmd.argument().empty() && cur.selection()) {
1277                         // use selected text as info to avoid a separate UI
1278                         docstring ds = cur.selectionAsString(false);
1279                         cutSelection(cur, true, false);
1280                         static_cast<InsetInfo *>(inset)->setInfo(to_utf8(ds));
1281                 }
1282                 insertInset(cur, inset);
1283                 cur.posForward();
1284                 break;
1285         }
1286 #if 0
1287         case LFUN_LIST_INSERT:
1288         case LFUN_THEOREM_INSERT:
1289 #endif
1290         case LFUN_CAPTION_INSERT:
1291         case LFUN_FOOTNOTE_INSERT:
1292                 // Open the inset, and move the current selection
1293                 // inside it.
1294                 doInsertInset(cur, this, cmd, true, true);
1295                 cur.posForward();
1296                 // These insets are numbered.
1297                 updateLabels(bv->buffer());
1298                 break;
1299         case LFUN_NOTE_INSERT:
1300         case LFUN_FLEX_INSERT:
1301         case LFUN_BOX_INSERT:
1302         case LFUN_BRANCH_INSERT:
1303         case LFUN_BIBITEM_INSERT:
1304         case LFUN_ERT_INSERT:
1305         case LFUN_LISTING_INSERT:
1306         case LFUN_MARGINALNOTE_INSERT:
1307         case LFUN_OPTIONAL_INSERT:
1308         case LFUN_ENVIRONMENT_INSERT:
1309                 // Open the inset, and move the current selection
1310                 // inside it.
1311                 doInsertInset(cur, this, cmd, true, true);
1312                 cur.posForward();
1313                 break;
1314
1315         case LFUN_TABULAR_INSERT:
1316                 // if there were no arguments, just open the dialog
1317                 if (doInsertInset(cur, this, cmd, false, true))
1318                         cur.posForward();
1319                 else
1320                         bv->showDialog("tabularcreate");
1321
1322                 break;
1323
1324         case LFUN_FLOAT_INSERT:
1325         case LFUN_FLOAT_WIDE_INSERT:
1326         case LFUN_WRAP_INSERT: {
1327                 bool content = cur.selection();  // will some text be moved into the inset?
1328
1329                 doInsertInset(cur, this, cmd, true, true);
1330                 cur.posForward();
1331                 ParagraphList & pars = cur.text()->paragraphs();
1332
1333                 TextClass const & tclass = bv->buffer().params().getTextClass();
1334
1335                 // add a separate paragraph for the caption inset
1336                 pars.push_back(Paragraph());
1337                 pars.back().setInsetOwner(pars[0].inInset());
1338                 pars.back().layout(tclass.defaultLayout());
1339
1340                 int cap_pit = pars.size() - 1;
1341
1342                 // if an empty inset was created, we create an additional empty
1343                 // paragraph at the bottom so that the user can choose where to put
1344                 // the graphics (or table).
1345                 if (!content) {
1346                         pars.push_back(Paragraph());
1347                         pars.back().setInsetOwner(pars[0].inInset());
1348                         pars.back().layout(tclass.defaultLayout());
1349
1350                 }
1351
1352                 // reposition the cursor to the caption
1353                 cur.pit() = cap_pit;
1354                 cur.pos() = 0;
1355                 // FIXME: This Text/Cursor dispatch handling is a mess!
1356                 // We cannot use Cursor::dispatch here it needs access to up to
1357                 // date metrics.
1358                 FuncRequest cmd_caption(LFUN_CAPTION_INSERT);
1359                 cur.text()->dispatch(cur, cmd_caption);
1360                 cur.updateFlags(Update::Force);
1361                 // FIXME: When leaving the Float (or Wrap) inset we should
1362                 // delete any empty paragraph left above or below the
1363                 // caption.
1364                 break;
1365         }
1366
1367         case LFUN_INDEX_INSERT:
1368                 doInsertInset(cur, this, cmd, true, true);
1369                 cur.posForward();
1370                 break;
1371
1372         case LFUN_NOMENCL_INSERT: {
1373                 FuncRequest cmd1 = cmd;
1374                 if (cmd.argument().empty())
1375                         cmd1 = FuncRequest(cmd,
1376                                 bv->cursor().innerText()->getStringToIndex(bv->cursor()));
1377                 Inset * inset = createInset(cur.bv().buffer(), cmd1);
1378                 if (!inset)
1379                         break;
1380                 cur.recordUndo();
1381                 cur.clearSelection();
1382                 insertInset(cur, inset);
1383                 // Show the dialog for the nomenclature entry, since the
1384                 // description entry still needs to be filled in.
1385                 if (cmd.action == LFUN_NOMENCL_INSERT)
1386                         inset->edit(cur, true);
1387                 cur.posForward();
1388                 break;
1389         }
1390
1391         case LFUN_INDEX_PRINT:
1392         case LFUN_NOMENCL_PRINT:
1393         case LFUN_TOC_INSERT:
1394         case LFUN_HFILL_INSERT:
1395         case LFUN_LINE_INSERT:
1396         case LFUN_PAGEBREAK_INSERT:
1397         case LFUN_CLEARPAGE_INSERT:
1398         case LFUN_CLEARDOUBLEPAGE_INSERT:
1399                 // do nothing fancy
1400                 doInsertInset(cur, this, cmd, false, false);
1401                 cur.posForward();
1402                 break;
1403
1404         case LFUN_DEPTH_DECREMENT:
1405                 changeDepth(cur, DEC_DEPTH);
1406                 break;
1407
1408         case LFUN_DEPTH_INCREMENT:
1409                 changeDepth(cur, INC_DEPTH);
1410                 break;
1411
1412         case LFUN_MATH_DISPLAY:
1413                 mathDispatch(cur, cmd, true);
1414                 break;
1415
1416         case LFUN_MATH_IMPORT_SELECTION:
1417         case LFUN_MATH_MODE:
1418                 if (cmd.argument() == "on")
1419                         // don't pass "on" as argument
1420                         mathDispatch(cur, FuncRequest(LFUN_MATH_MODE), false);
1421                 else
1422                         mathDispatch(cur, cmd, false);
1423                 break;
1424
1425         case LFUN_MATH_MACRO:
1426                 if (cmd.argument().empty())
1427                         cur.errorMessage(from_utf8(N_("Missing argument")));
1428                 else {
1429                         string s = to_utf8(cmd.argument());
1430                         string const s1 = token(s, ' ', 1);
1431                         int const nargs = s1.empty() ? 0 : convert<int>(s1);
1432                         string const s2 = token(s, ' ', 2);
1433                         string const type = s2.empty() ? "newcommand" : s2;
1434                         cur.insert(new MathMacroTemplate(from_utf8(token(s, ' ', 0)), nargs, false, from_utf8(type)));
1435                         //cur.nextInset()->edit(cur, true);
1436                 }
1437                 break;
1438
1439         // passthrough hat and underscore outside mathed:
1440         case LFUN_MATH_SUBSCRIPT:
1441                 mathDispatch(cur, FuncRequest(LFUN_SELF_INSERT, "_"), false);
1442                 break;
1443         case LFUN_MATH_SUPERSCRIPT:
1444                 mathDispatch(cur, FuncRequest(LFUN_SELF_INSERT, "^"), false);
1445                 break;
1446
1447         case LFUN_MATH_INSERT:
1448         case LFUN_MATH_MATRIX:
1449         case LFUN_MATH_DELIM:
1450         case LFUN_MATH_BIGDELIM: {
1451                 if (cur.selection())
1452                         cur.clearSelection();
1453                 // FIXME: instead of the above, this one
1454                 // should be used (but it asserts with Bidi enabled)
1455                 // cf. http://bugzilla.lyx.org/show_bug.cgi?id=4055
1456                 // cap::replaceSelection(cur);
1457                 cur.insert(new InsetMathHull(hullSimple));
1458                 checkAndActivateInset(cur, true);
1459                 BOOST_ASSERT(cur.inMathed());
1460                 cur.dispatch(cmd);
1461                 break;
1462         }
1463
1464         case LFUN_FONT_EMPH: {
1465                 Font font(ignore_font);
1466                 font.fontInfo().setEmph(FONT_TOGGLE);
1467                 toggleAndShow(cur, this, font);
1468                 break;
1469         }
1470
1471         case LFUN_FONT_BOLD: {
1472                 Font font(ignore_font);
1473                 font.fontInfo().setSeries(BOLD_SERIES);
1474                 toggleAndShow(cur, this, font);
1475                 break;
1476         }
1477
1478         case LFUN_FONT_NOUN: {
1479                 Font font(ignore_font);
1480                 font.fontInfo().setNoun(FONT_TOGGLE);
1481                 toggleAndShow(cur, this, font);
1482                 break;
1483         }
1484
1485         case LFUN_FONT_TYPEWRITER: {
1486                 Font font(ignore_font);
1487                 font.fontInfo().setFamily(TYPEWRITER_FAMILY); // no good
1488                 toggleAndShow(cur, this, font);
1489                 break;
1490         }
1491
1492         case LFUN_FONT_SANS: {
1493                 Font font(ignore_font);
1494                 font.fontInfo().setFamily(SANS_FAMILY);
1495                 toggleAndShow(cur, this, font);
1496                 break;
1497         }
1498
1499         case LFUN_FONT_ROMAN: {
1500                 Font font(ignore_font);
1501                 font.fontInfo().setFamily(ROMAN_FAMILY);
1502                 toggleAndShow(cur, this, font);
1503                 break;
1504         }
1505
1506         case LFUN_FONT_DEFAULT: {
1507                 Font font(inherit_font, ignore_language);
1508                 toggleAndShow(cur, this, font);
1509                 break;
1510         }
1511
1512         case LFUN_FONT_UNDERLINE: {
1513                 Font font(ignore_font);
1514                 font.fontInfo().setUnderbar(FONT_TOGGLE);
1515                 toggleAndShow(cur, this, font);
1516                 break;
1517         }
1518
1519         case LFUN_FONT_SIZE: {
1520                 Font font(ignore_font);
1521                 setLyXSize(to_utf8(cmd.argument()), font.fontInfo());
1522                 toggleAndShow(cur, this, font);
1523                 break;
1524         }
1525
1526         case LFUN_LANGUAGE: {
1527                 Language const * lang = languages.getLanguage(to_utf8(cmd.argument()));
1528                 if (!lang)
1529                         break;
1530                 Font font(ignore_font);
1531                 font.setLanguage(lang);
1532                 toggleAndShow(cur, this, font);
1533                 break;
1534         }
1535
1536         case LFUN_FONT_FREE_APPLY:
1537                 toggleAndShow(cur, this, freefont, toggleall);
1538                 cur.message(_("Character set"));
1539                 break;
1540
1541         // Set the freefont using the contents of \param data dispatched from
1542         // the frontends and apply it at the current cursor location.
1543         case LFUN_FONT_FREE_UPDATE: {
1544                 Font font;
1545                 bool toggle;
1546                 if (font.fromString(to_utf8(cmd.argument()), toggle)) {
1547                         freefont = font;
1548                         toggleall = toggle;
1549                         toggleAndShow(cur, this, freefont, toggleall);
1550                         cur.message(_("Character set"));
1551                 } else {
1552                         lyxerr << "Argument not ok";
1553                 }
1554                 break;
1555         }
1556
1557         case LFUN_FINISHED_LEFT:
1558                 LYXERR(Debug::DEBUG) << "handle LFUN_FINISHED_LEFT:\n" << cur << endl;
1559                 if (reverseDirectionNeeded(cur)) {
1560                         ++cur.pos();
1561                         cur.setCurrentFont();
1562                 }
1563                 break;
1564
1565         case LFUN_FINISHED_RIGHT:
1566                 LYXERR(Debug::DEBUG) << "handle LFUN_FINISHED_RIGHT:\n" << cur << endl;
1567                 if (!reverseDirectionNeeded(cur)) {
1568                         ++cur.pos();
1569                         cur.setCurrentFont();
1570                 }
1571                 break;
1572
1573         case LFUN_FINISHED_BACKWARD:
1574                 LYXERR(Debug::DEBUG) << "handle LFUN_FINISHED_BACKWARD:\n" << cur << endl;
1575                 break;
1576
1577         case LFUN_FINISHED_FORWARD:
1578                 LYXERR(Debug::DEBUG) << "handle LFUN_FINISHED_FORWARD:\n" << cur << endl;
1579                 ++cur.pos();
1580                 cur.setCurrentFont();
1581                 break;
1582
1583         case LFUN_LAYOUT_PARAGRAPH: {
1584                 string data;
1585                 params2string(cur.paragraph(), data);
1586                 data = "show\n" + data;
1587                 bv->showDialogWithData("paragraph", data);
1588                 break;
1589         }
1590
1591         case LFUN_PARAGRAPH_UPDATE: {
1592                 string data;
1593                 params2string(cur.paragraph(), data);
1594
1595                 // Will the paragraph accept changes from the dialog?
1596                 bool const accept = !cur.inset().forceDefaultParagraphs(cur.idx());
1597
1598                 data = "update " + convert<string>(accept) + '\n' + data;
1599                 bv->updateDialog("paragraph", data);
1600                 break;
1601         }
1602
1603         case LFUN_ACCENT_UMLAUT:
1604         case LFUN_ACCENT_CIRCUMFLEX:
1605         case LFUN_ACCENT_GRAVE:
1606         case LFUN_ACCENT_ACUTE:
1607         case LFUN_ACCENT_TILDE:
1608         case LFUN_ACCENT_CEDILLA:
1609         case LFUN_ACCENT_MACRON:
1610         case LFUN_ACCENT_DOT:
1611         case LFUN_ACCENT_UNDERDOT:
1612         case LFUN_ACCENT_UNDERBAR:
1613         case LFUN_ACCENT_CARON:
1614         case LFUN_ACCENT_SPECIAL_CARON:
1615         case LFUN_ACCENT_BREVE:
1616         case LFUN_ACCENT_TIE:
1617         case LFUN_ACCENT_HUNGARIAN_UMLAUT:
1618         case LFUN_ACCENT_CIRCLE:
1619         case LFUN_ACCENT_OGONEK:
1620                 theLyXFunc().handleKeyFunc(cmd.action);
1621                 if (!cmd.argument().empty())
1622                         // FIXME: Are all these characters encoded in one byte in utf8?
1623                         bv->translateAndInsert(cmd.argument()[0], this, cur);
1624                 break;
1625
1626         case LFUN_FLOAT_LIST: {
1627                 TextClass const & tclass = bv->buffer().params().getTextClass();
1628                 if (tclass.floats().typeExist(to_utf8(cmd.argument()))) {
1629                         cur.recordUndo();
1630                         if (cur.selection())
1631                                 cutSelection(cur, true, false);
1632                         breakParagraph(cur);
1633
1634                         if (cur.lastpos() != 0) {
1635                                 cursorBackward(cur);
1636                                 breakParagraph(cur);
1637                         }
1638
1639                         setLayout(cur, tclass.defaultLayoutName());
1640                         ParagraphParameters p;
1641                         setParagraphs(cur, p);
1642                         insertInset(cur, new InsetFloatList(to_utf8(cmd.argument())));
1643                         cur.posForward();
1644                 } else {
1645                         lyxerr << "Non-existent float type: "
1646                                << to_utf8(cmd.argument()) << endl;
1647                 }
1648                 break;
1649         }
1650
1651         case LFUN_CHANGE_ACCEPT: {
1652                 acceptOrRejectChanges(cur, ACCEPT);
1653                 break;
1654         }
1655
1656         case LFUN_CHANGE_REJECT: {
1657                 acceptOrRejectChanges(cur, REJECT);
1658                 break;
1659         }
1660
1661         case LFUN_THESAURUS_ENTRY: {
1662                 docstring arg = cmd.argument();
1663                 if (arg.empty()) {
1664                         arg = cur.selectionAsString(false);
1665                         // FIXME
1666                         if (arg.size() > 100 || arg.empty()) {
1667                                 // Get word or selection
1668                                 selectWordWhenUnderCursor(cur, WHOLE_WORD);
1669                                 arg = cur.selectionAsString(false);
1670                         }
1671                 }
1672                 bv->showDialogWithData("thesaurus", to_utf8(arg));
1673                 break;
1674         }
1675
1676         case LFUN_PARAGRAPH_PARAMS_APPLY: {
1677                 // Given data, an encoding of the ParagraphParameters
1678                 // generated in the Paragraph dialog, this function sets
1679                 // the current paragraph, or currently selected paragraphs,
1680                 // appropriately.
1681                 // NOTE: This function overrides all existing settings.
1682                 setParagraphs(cur, cmd.argument());
1683                 cur.message(_("Paragraph layout set"));
1684                 break;
1685         }
1686
1687         case LFUN_PARAGRAPH_PARAMS: {
1688                 // Given data, an encoding of the ParagraphParameters as we'd
1689                 // find them in a LyX file, this function modifies the current paragraph,
1690                 // or currently selected paragraphs.
1691                 // NOTE: This function only modifies, and does not override, existing
1692                 // settings.
1693                 setParagraphs(cur, cmd.argument(), true);
1694                 cur.message(_("Paragraph layout set"));
1695                 break;
1696         }
1697
1698         case LFUN_ESCAPE:
1699                 if (cur.selection()) {
1700                         cur.selection() = false;
1701                 } else {
1702                         cur.undispatched();
1703                         // This used to be LFUN_FINISHED_RIGHT, I think FORWARD is more
1704                         // correct, but I'm not 100% sure -- dov, 071019
1705                         cmd = FuncRequest(LFUN_FINISHED_FORWARD);
1706                 }
1707                 break;
1708
1709         case LFUN_OUTLINE_UP:
1710                 outline(OutlineUp, cur);
1711                 setCursor(cur, cur.pit(), 0);
1712                 updateLabels(cur.buffer());
1713                 needsUpdate = true;
1714                 break;
1715
1716         case LFUN_OUTLINE_DOWN:
1717                 outline(OutlineDown, cur);
1718                 setCursor(cur, cur.pit(), 0);
1719                 updateLabels(cur.buffer());
1720                 needsUpdate = true;
1721                 break;
1722
1723         case LFUN_OUTLINE_IN:
1724                 outline(OutlineIn, cur);
1725                 updateLabels(cur.buffer());
1726                 needsUpdate = true;
1727                 break;
1728
1729         case LFUN_OUTLINE_OUT:
1730                 outline(OutlineOut, cur);
1731                 updateLabels(cur.buffer());
1732                 needsUpdate = true;
1733                 break;
1734
1735         default:
1736                 LYXERR(Debug::ACTION)
1737                         << BOOST_CURRENT_FUNCTION
1738                         << ": Command " << cmd
1739                         << " not DISPATCHED by Text" << endl;
1740                 cur.undispatched();
1741                 break;
1742         }
1743
1744         needsUpdate |= (cur.pos() != cur.lastpos()) && cur.selection();
1745
1746         // FIXME: The cursor flag is reset two lines below
1747         // so we need to check here if some of the LFUN did touch that.
1748         // for now only Text::erase() and Text::backspace() do that.
1749         // The plan is to verify all the LFUNs and then to remove this
1750         // singleParUpdate boolean altogether.
1751         if (cur.result().update() & Update::Force) {
1752                 singleParUpdate = false;
1753                 needsUpdate = true;
1754         }
1755
1756         // FIXME: the following code should go in favor of fine grained
1757         // update flag treatment.
1758         if (singleParUpdate) {
1759                 // Inserting characters does not change par height
1760                 ParagraphMetrics const & pms
1761                         = cur.bv().parMetrics(cur.bottom().text(), cur.bottom().pit());
1762                 if (pms.dim().height()
1763                     == olddim.height()) {
1764                         // if so, update _only_ this paragraph
1765                         cur.updateFlags(Update::SinglePar |
1766                                 Update::FitCursor);
1767                         return;
1768                 } else
1769                         needsUpdate = true;
1770         }
1771
1772         if (!needsUpdate
1773             && &oldTopSlice.inset() == &cur.inset()
1774             && oldTopSlice.idx() == cur.idx()
1775             && !sel // sel is a backup of cur.selection() at the biginning of the function.
1776             && !cur.selection())
1777                 // FIXME: it would be better if we could just do this
1778                 //
1779                 //if (cur.result().update() != Update::FitCursor)
1780                 //      cur.noUpdate();
1781                 //
1782                 // But some LFUNs do not set Update::FitCursor when needed, so we
1783                 // do it for all. This is not very harmfull as FitCursor will provoke
1784                 // a full redraw only if needed but still, a proper review of all LFUN
1785                 // should be done and this needsUpdate boolean can then be removed.
1786                 cur.updateFlags(Update::FitCursor);
1787         else
1788                 cur.updateFlags(Update::Force | Update::FitCursor);
1789 }
1790
1791
1792 bool Text::getStatus(Cursor & cur, FuncRequest const & cmd,
1793                         FuncStatus & flag) const
1794 {
1795         BOOST_ASSERT(cur.text() == this);
1796
1797         Font const & font = cur.real_current_font;
1798         FontInfo const & fontinfo = font.fontInfo();
1799         bool enable = true;
1800         InsetCode code = NO_CODE;
1801
1802         switch (cmd.action) {
1803
1804         case LFUN_DEPTH_DECREMENT:
1805                 enable = changeDepthAllowed(cur, DEC_DEPTH);
1806                 break;
1807
1808         case LFUN_DEPTH_INCREMENT:
1809                 enable = changeDepthAllowed(cur, INC_DEPTH);
1810                 break;
1811
1812         case LFUN_APPENDIX:
1813                 flag.setOnOff(cur.paragraph().params().startOfAppendix());
1814                 return true;
1815
1816         case LFUN_BIBITEM_INSERT:
1817                 enable = (cur.paragraph().layout()->labeltype == LABEL_BIBLIO
1818                           && cur.pos() == 0);
1819                 break;
1820
1821         case LFUN_DIALOG_SHOW_NEW_INSET:
1822                 if (cmd.argument() == "bibitem")
1823                         code = BIBITEM_CODE;
1824                 else if (cmd.argument() == "bibtex")
1825                         code = BIBTEX_CODE;
1826                 else if (cmd.argument() == "box")
1827                         code = BOX_CODE;
1828                 else if (cmd.argument() == "branch")
1829                         code = BRANCH_CODE;
1830                 else if (cmd.argument() == "citation")
1831                         code = CITE_CODE;
1832                 else if (cmd.argument() == "ert")
1833                         code = ERT_CODE;
1834                 else if (cmd.argument() == "external")
1835                         code = EXTERNAL_CODE;
1836                 else if (cmd.argument() == "float")
1837                         code = FLOAT_CODE;
1838                 else if (cmd.argument() == "graphics")
1839                         code = GRAPHICS_CODE;
1840                 else if (cmd.argument() == "href")
1841                         code = HYPERLINK_CODE;
1842                 else if (cmd.argument() == "include")
1843                         code = INCLUDE_CODE;
1844                 else if (cmd.argument() == "index")
1845                         code = INDEX_CODE;
1846                 else if (cmd.argument() == "nomenclature")
1847                         code = NOMENCL_CODE;
1848                 else if (cmd.argument() == "label")
1849                         code = LABEL_CODE;
1850                 else if (cmd.argument() == "note")
1851                         code = NOTE_CODE;
1852                 else if (cmd.argument() == "ref")
1853                         code = REF_CODE;
1854                 else if (cmd.argument() == "toc")
1855                         code = TOC_CODE;
1856                 else if (cmd.argument() == "vspace")
1857                         code = VSPACE_CODE;
1858                 else if (cmd.argument() == "wrap")
1859                         code = WRAP_CODE;
1860                 else if (cmd.argument() == "listings")
1861                         code = LISTINGS_CODE;
1862                 break;
1863
1864         case LFUN_ERT_INSERT:
1865                 code = ERT_CODE;
1866                 break;
1867         case LFUN_LISTING_INSERT:
1868             code = LISTINGS_CODE;
1869                 break;
1870         case LFUN_FOOTNOTE_INSERT:
1871                 code = FOOT_CODE;
1872                 break;
1873         case LFUN_TABULAR_INSERT:
1874                 code = TABULAR_CODE;
1875                 break;
1876         case LFUN_MARGINALNOTE_INSERT:
1877                 code = MARGIN_CODE;
1878                 break;
1879         case LFUN_FLOAT_INSERT:
1880         case LFUN_FLOAT_WIDE_INSERT:
1881                 code = FLOAT_CODE;
1882                 break;
1883         case LFUN_WRAP_INSERT:
1884                 code = WRAP_CODE;
1885                 break;
1886         case LFUN_FLOAT_LIST:
1887                 code = FLOAT_LIST_CODE;
1888                 break;
1889 #if 0
1890         case LFUN_LIST_INSERT:
1891                 code = LIST_CODE;
1892                 break;
1893         case LFUN_THEOREM_INSERT:
1894                 code = THEOREM_CODE;
1895                 break;
1896 #endif
1897         case LFUN_CAPTION_INSERT:
1898                 code = CAPTION_CODE;
1899                 break;
1900         case LFUN_NOTE_INSERT:
1901                 code = NOTE_CODE;
1902                 break;
1903         case LFUN_FLEX_INSERT: {
1904                 code = FLEX_CODE;
1905                 string s = cmd.getArg(0);
1906                 InsetLayout il =  cur.buffer().params().getTextClass().insetlayout(from_utf8(s));
1907                 if (il.lyxtype != "charstyle" &&
1908                     il.lyxtype != "custom" &&
1909                     il.lyxtype != "element")
1910                         enable = false;
1911                 break;
1912                 }
1913         case LFUN_BOX_INSERT:
1914                 code = BOX_CODE;
1915                 break;
1916         case LFUN_BRANCH_INSERT:
1917                 code = BRANCH_CODE;
1918                 if (cur.buffer().masterBuffer()->params().branchlist().empty())
1919                         enable = false;
1920                 break;
1921         case LFUN_LABEL_INSERT:
1922                 code = LABEL_CODE;
1923                 break;
1924         case LFUN_INFO_INSERT:
1925                 code = INFO_CODE;
1926                 break;
1927         case LFUN_OPTIONAL_INSERT:
1928                 code = OPTARG_CODE;
1929                 enable = cur.paragraph().insetList().count(OPTARG_CODE)
1930                         < cur.paragraph().layout()->optionalargs;
1931                 break;
1932         case LFUN_ENVIRONMENT_INSERT:
1933                 code = BOX_CODE;
1934                 break;
1935         case LFUN_INDEX_INSERT:
1936                 code = INDEX_CODE;
1937                 break;
1938         case LFUN_INDEX_PRINT:
1939                 code = INDEX_PRINT_CODE;
1940                 break;
1941         case LFUN_NOMENCL_INSERT:
1942                 code = NOMENCL_CODE;
1943                 break;
1944         case LFUN_NOMENCL_PRINT:
1945                 code = NOMENCL_PRINT_CODE;
1946                 break;
1947         case LFUN_TOC_INSERT:
1948                 code = TOC_CODE;
1949                 break;
1950         case LFUN_HYPERLINK_INSERT:
1951                 code = HYPERLINK_CODE;
1952                 break;
1953         case LFUN_QUOTE_INSERT:
1954                 // always allow this, since we will inset a raw quote
1955                 // if an inset is not allowed.
1956                 break;
1957         case LFUN_HYPHENATION_POINT_INSERT:
1958         case LFUN_LIGATURE_BREAK_INSERT:
1959         case LFUN_HFILL_INSERT:
1960         case LFUN_MENU_SEPARATOR_INSERT:
1961         case LFUN_DOTS_INSERT:
1962         case LFUN_END_OF_SENTENCE_PERIOD_INSERT:
1963                 code = SPECIALCHAR_CODE;
1964                 break;
1965         case LFUN_SPACE_INSERT:
1966                 // slight hack: we know this is allowed in math mode
1967                 if (cur.inTexted())
1968                         code = SPACE_CODE;
1969                 break;
1970
1971         case LFUN_INSET_MODIFY:
1972                 // We need to disable this, because we may get called for a
1973                 // tabular cell via
1974                 // InsetTabular::getStatus() -> InsetText::getStatus()
1975                 // and we don't handle LFUN_INSET_MODIFY.
1976                 enable = false;
1977                 break;
1978
1979         case LFUN_FONT_EMPH:
1980                 flag.setOnOff(fontinfo.emph() == FONT_ON);
1981                 return true;
1982
1983         case LFUN_FONT_NOUN:
1984                 flag.setOnOff(fontinfo.noun() == FONT_ON);
1985                 return true;
1986
1987         case LFUN_FONT_BOLD:
1988                 flag.setOnOff(fontinfo.series() == BOLD_SERIES);
1989                 return true;
1990
1991         case LFUN_FONT_SANS:
1992                 flag.setOnOff(fontinfo.family() == SANS_FAMILY);
1993                 return true;
1994
1995         case LFUN_FONT_ROMAN:
1996                 flag.setOnOff(fontinfo.family() == ROMAN_FAMILY);
1997                 return true;
1998
1999         case LFUN_FONT_TYPEWRITER:
2000                 flag.setOnOff(fontinfo.family() == TYPEWRITER_FAMILY);
2001                 return true;
2002
2003         case LFUN_CUT:
2004         case LFUN_COPY:
2005                 enable = cur.selection();
2006                 break;
2007
2008         case LFUN_PASTE:
2009                 if (cmd.argument().empty()) {
2010                         if (theClipboard().isInternal())
2011                                 enable = cap::numberOfSelections() > 0;
2012                         else
2013                                 enable = !theClipboard().empty();
2014                 } else {
2015                         string const arg = to_utf8(cmd.argument());
2016                         if (isStrUnsignedInt(arg)) {
2017                                 unsigned int n = convert<unsigned int>(arg);
2018                                 enable = cap::numberOfSelections() > n;
2019                         } else
2020                                 // unknown argument
2021                                 enable = false;
2022                 }
2023                 break;
2024
2025         case LFUN_CLIPBOARD_PASTE:
2026                 enable = !theClipboard().empty();
2027                 break;
2028
2029         case LFUN_PRIMARY_SELECTION_PASTE:
2030                 enable = cur.selection() || !theSelection().empty();
2031                 break;
2032
2033         case LFUN_PARAGRAPH_MOVE_UP:
2034                 enable = cur.pit() > 0 && !cur.selection();
2035                 break;
2036
2037         case LFUN_PARAGRAPH_MOVE_DOWN:
2038                 enable = cur.pit() < cur.lastpit() && !cur.selection();
2039                 break;
2040
2041         case LFUN_INSET_DISSOLVE:
2042                 if (!cmd.argument().empty()) {
2043                         InsetLayout il = cur.inset().getLayout(cur.buffer().params());
2044                         enable = cur.inset().lyxCode() == FLEX_CODE
2045                                  && il.lyxtype == to_utf8(cmd.argument());
2046                 } else {
2047                         enable = !isMainText(cur.bv().buffer())
2048                                  && cur.inset().nargs() == 1;
2049                 }
2050                 break;
2051
2052         case LFUN_CHANGE_ACCEPT:
2053         case LFUN_CHANGE_REJECT:
2054                 // TODO: context-sensitive enabling of LFUN_CHANGE_ACCEPT/REJECT
2055                 // In principle, these LFUNs should only be enabled if there
2056                 // is a change at the current position/in the current selection.
2057                 // However, without proper optimizations, this will inevitably
2058                 // result in unacceptable performance - just imagine a user who
2059                 // wants to select the complete content of a long document.
2060                 enable = true;
2061                 break;
2062
2063         case LFUN_OUTLINE_UP:
2064         case LFUN_OUTLINE_DOWN:
2065         case LFUN_OUTLINE_IN:
2066         case LFUN_OUTLINE_OUT:
2067                 enable = (cur.paragraph().layout()->toclevel != Layout::NOT_IN_TOC);
2068                 break;
2069
2070         case LFUN_WORD_DELETE_FORWARD:
2071         case LFUN_WORD_DELETE_BACKWARD:
2072         case LFUN_LINE_DELETE:
2073         case LFUN_WORD_FORWARD:
2074         case LFUN_WORD_BACKWARD:
2075         case LFUN_WORD_RIGHT:
2076         case LFUN_WORD_LEFT:
2077         case LFUN_CHAR_FORWARD:
2078         case LFUN_CHAR_FORWARD_SELECT:
2079         case LFUN_CHAR_BACKWARD:
2080         case LFUN_CHAR_BACKWARD_SELECT:
2081         case LFUN_CHAR_LEFT:
2082         case LFUN_CHAR_LEFT_SELECT:
2083         case LFUN_CHAR_RIGHT:
2084         case LFUN_CHAR_RIGHT_SELECT:
2085         case LFUN_UP:
2086         case LFUN_UP_SELECT:
2087         case LFUN_DOWN:
2088         case LFUN_DOWN_SELECT:
2089         case LFUN_PARAGRAPH_UP_SELECT:
2090         case LFUN_PARAGRAPH_DOWN_SELECT:
2091         case LFUN_SCREEN_UP_SELECT:
2092         case LFUN_SCREEN_DOWN_SELECT:
2093         case LFUN_LINE_BEGIN_SELECT:
2094         case LFUN_LINE_END_SELECT:
2095         case LFUN_WORD_FORWARD_SELECT:
2096         case LFUN_WORD_BACKWARD_SELECT:
2097         case LFUN_WORD_RIGHT_SELECT:
2098         case LFUN_WORD_LEFT_SELECT:
2099         case LFUN_WORD_SELECT:
2100         case LFUN_PARAGRAPH_UP:
2101         case LFUN_PARAGRAPH_DOWN:
2102         case LFUN_LINE_BEGIN:
2103         case LFUN_LINE_END:
2104         case LFUN_BREAK_LINE:
2105         case LFUN_CHAR_DELETE_FORWARD:
2106         case LFUN_DELETE_FORWARD_SKIP:
2107         case LFUN_CHAR_DELETE_BACKWARD:
2108         case LFUN_DELETE_BACKWARD_SKIP:
2109         case LFUN_BREAK_PARAGRAPH:
2110         case LFUN_BREAK_PARAGRAPH_SKIP:
2111         case LFUN_PARAGRAPH_SPACING:
2112         case LFUN_INSET_INSERT:
2113         case LFUN_WORD_UPCASE:
2114         case LFUN_WORD_LOWCASE:
2115         case LFUN_WORD_CAPITALIZE:
2116         case LFUN_CHARS_TRANSPOSE:
2117         case LFUN_SERVER_GET_XY:
2118         case LFUN_SERVER_SET_XY:
2119         case LFUN_SERVER_GET_FONT:
2120         case LFUN_SERVER_GET_LAYOUT:
2121         case LFUN_LAYOUT:
2122         case LFUN_DATE_INSERT:
2123         case LFUN_SELF_INSERT:
2124         case LFUN_LINE_INSERT:
2125         case LFUN_PAGEBREAK_INSERT:
2126         case LFUN_CLEARPAGE_INSERT:
2127         case LFUN_CLEARDOUBLEPAGE_INSERT:
2128         case LFUN_MATH_DISPLAY:
2129         case LFUN_MATH_IMPORT_SELECTION:
2130         case LFUN_MATH_MODE:
2131         case LFUN_MATH_MACRO:
2132         case LFUN_MATH_MATRIX:
2133         case LFUN_MATH_DELIM:
2134         case LFUN_MATH_BIGDELIM:
2135         case LFUN_MATH_INSERT:
2136         case LFUN_MATH_SUBSCRIPT:
2137         case LFUN_MATH_SUPERSCRIPT:
2138         case LFUN_FONT_DEFAULT:
2139         case LFUN_FONT_UNDERLINE:
2140         case LFUN_FONT_SIZE:
2141         case LFUN_LANGUAGE:
2142         case LFUN_FONT_FREE_APPLY:
2143         case LFUN_FONT_FREE_UPDATE:
2144         case LFUN_LAYOUT_PARAGRAPH:
2145         case LFUN_PARAGRAPH_UPDATE:
2146         case LFUN_ACCENT_UMLAUT:
2147         case LFUN_ACCENT_CIRCUMFLEX:
2148         case LFUN_ACCENT_GRAVE:
2149         case LFUN_ACCENT_ACUTE:
2150         case LFUN_ACCENT_TILDE:
2151         case LFUN_ACCENT_CEDILLA:
2152         case LFUN_ACCENT_MACRON:
2153         case LFUN_ACCENT_DOT:
2154         case LFUN_ACCENT_UNDERDOT:
2155         case LFUN_ACCENT_UNDERBAR:
2156         case LFUN_ACCENT_CARON:
2157         case LFUN_ACCENT_SPECIAL_CARON:
2158         case LFUN_ACCENT_BREVE:
2159         case LFUN_ACCENT_TIE:
2160         case LFUN_ACCENT_HUNGARIAN_UMLAUT:
2161         case LFUN_ACCENT_CIRCLE:
2162         case LFUN_ACCENT_OGONEK:
2163         case LFUN_THESAURUS_ENTRY:
2164         case LFUN_PARAGRAPH_PARAMS_APPLY:
2165         case LFUN_PARAGRAPH_PARAMS:
2166         case LFUN_ESCAPE:
2167         case LFUN_BUFFER_END:
2168         case LFUN_BUFFER_BEGIN:
2169         case LFUN_BUFFER_BEGIN_SELECT:
2170         case LFUN_BUFFER_END_SELECT:
2171         case LFUN_UNICODE_INSERT:
2172                 // these are handled in our dispatch()
2173                 enable = true;
2174                 break;
2175
2176         default:
2177                 return false;
2178         }
2179
2180         if (code != NO_CODE
2181             && (cur.empty() || !cur.inset().insetAllowed(code)))
2182                 enable = false;
2183
2184         flag.enabled(enable);
2185         return true;
2186 }
2187
2188
2189 void Text::pasteString(Cursor & cur, docstring const & clip,
2190                 bool asParagraphs)
2191 {
2192         cur.clearSelection();
2193         if (!clip.empty()) {
2194                 cur.recordUndo();
2195                 if (asParagraphs)
2196                         insertStringAsParagraphs(cur, clip);
2197                 else
2198                         insertStringAsLines(cur, clip);
2199         }
2200 }
2201
2202 } // namespace lyx