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 "Changes.h"
  29 #include "Cursor.h"
  30 #include "CutAndPaste.h"
  31 #include "DispatchResult.h"
  32 #include "ErrorList.h"
  33 #include "factory.h"
  34 #include "FuncRequest.h"
  35 #include "InsetList.h"
  36 #include "Intl.h"
  37 #include "Language.h"
  38 #include "Layout.h"
  39 #include "LyXAction.h"
  40 #include "LyX.h"
  41 #include "Lexer.h"
  42 #include "LyXRC.h"
  43 #include "Paragraph.h"
  44 #include "ParagraphParameters.h"
  45 #include "SpellChecker.h"
  46 #include "TextClass.h"
  47 #include "TextMetrics.h"
  48 #include "WordLangTuple.h"
  49
  50 #include "frontends/Application.h"
  51 #include "frontends/Clipboard.h"
  52 #include "frontends/Selection.h"
  53
  54 #include "insets/InsetArgument.h"
  55 #include "insets/InsetCollapsable.h"
  56 #include "insets/InsetCommand.h"
  57 #include "insets/InsetExternal.h"
  58 #include "insets/InsetFloat.h"
  59 #include "insets/InsetFloatList.h"
  60 #include "insets/InsetGraphics.h"
  61 #include "insets/InsetGraphicsParams.h"
  62 #include "insets/InsetIPAMacro.h"
  63 #include "insets/InsetNewline.h"
  64 #include "insets/InsetQuotes.h"
  65 #include "insets/InsetSpecialChar.h"
  66 #include "insets/InsetText.h"
  67 #include "insets/InsetWrap.h"
  68
  69 #include "support/convert.h"
  70 #include "support/debug.h"
  71 #include "support/gettext.h"
  72 #include "support/lassert.h"
  73 #include "support/lstrings.h"
  74 #include "support/lyxtime.h"
  75 #include "support/os.h"
  76
  77 #include "mathed/InsetMathHull.h"
  78 #include "mathed/MathMacroTemplate.h"
  79
  80 #include <boost/next_prior.hpp>
  81
  82 #include <clocale>
  83 #include <sstream>
  84
  85 using namespace std;
  86 using namespace lyx::support;
  87
  88 namespace lyx {
  89
  90 using cap::copySelection;
  91 using cap::cutSelection;
  92 using cap::pasteFromStack;
  93 using cap::pasteClipboardText;
  94 using cap::pasteClipboardGraphics;
  95 using cap::replaceSelection;
  96 using cap::grabAndEraseSelection;
  97 using cap::selClearOrDel;
  98 using cap::pasteSimpleText;
  99
 100 // globals...
 101 static Font freefont(ignore_font, ignore_language);
 102 static bool toggleall = false;
 103
 104 static void toggleAndShow(Cursor & cur, Text * text,
 105         Font const & font, bool toggleall = true)
 106 {
 107         text->toggleFree(cur, font, toggleall);
 108
 109         if (font.language() != ignore_language ||
 110             font.fontInfo().number() != FONT_IGNORE) {
 111                 TextMetrics const & tm = cur.bv().textMetrics(text);
 112                 if (cur.boundary() != tm.isRTLBoundary(cur.pit(), cur.pos(),
 113                                                        cur.real_current_font))
 114                         text->setCursor(cur, cur.pit(), cur.pos(),
 115                                         false, !cur.boundary());
 116         }
 117 }
 118
 119
 120 static void moveCursor(Cursor & cur, bool selecting)
 121 {
 122         if (selecting || cur.mark())
 123                 cur.setSelection();
 124 }
 125
 126
 127 static void finishChange(Cursor & cur, bool selecting)
 128 {
 129         cur.finishUndo();
 130         moveCursor(cur, selecting);
 131 }
 132
 133
 134 static void mathDispatch(Cursor & cur, FuncRequest const & cmd, bool display)
 135 {
 136         cur.recordUndo();
 137         docstring sel = cur.selectionAsString(false);
 138
 139         // It may happen that sel is empty but there is a selection
 140         replaceSelection(cur);
 141
 142         // Is this a valid formula?
 143         bool valid = true;
 144
 145         if (sel.empty()) {
 146 #ifdef ENABLE_ASSERTIONS
 147                 const int old_pos = cur.pos();
 148 #endif
 149                 cur.insert(new InsetMathHull(cur.buffer(), hullSimple));
 150 #ifdef ENABLE_ASSERTIONS
 151                 LASSERT(old_pos == cur.pos(), /**/);
 152 #endif
 153                 cur.nextInset()->edit(cur, true);
 154                 // don't do that also for LFUN_MATH_MODE
 155                 // unless you want end up with always changing
 156                 // to mathrm when opening an inlined inset --
 157                 // I really hate "LyXfunc overloading"...
 158                 if (display)
 159                         cur.dispatch(FuncRequest(LFUN_MATH_DISPLAY));
 160                 // Avoid an unnecessary undo step if cmd.argument
 161                 // is empty
 162                 if (!cmd.argument().empty())
 163                         cur.dispatch(FuncRequest(LFUN_MATH_INSERT,
 164                                                  cmd.argument()));
 165         } else {
 166                 // create a macro if we see "\\newcommand"
 167                 // somewhere, and an ordinary formula
 168                 // otherwise
 169                 if (sel.find(from_ascii("\\newcommand")) == string::npos
 170                                 && sel.find(from_ascii("\\newlyxcommand")) == string::npos
 171                                 && sel.find(from_ascii("\\def")) == string::npos)
 172                 {
 173                         InsetMathHull * formula = new InsetMathHull(cur.buffer());
 174                         string const selstr = to_utf8(sel);
 175                         istringstream is(selstr);
 176                         Lexer lex;
 177                         lex.setStream(is);
 178                         if (!formula->readQuiet(lex)) {
 179                                 // No valid formula, let's try with delims
 180                                 is.str("$" + selstr + "$");
 181                                 lex.setStream(is);
 182                                 if (!formula->readQuiet(lex)) {
 183                                         // Still not valid, leave it as is
 184                                         valid = false;
 185                                         delete formula;
 186                                         cur.insert(sel);
 187                                 } else
 188                                         cur.insert(formula);
 189                         } else
 190                                 cur.insert(formula);
 191                 } else {
 192                         cur.insert(new MathMacroTemplate(cur.buffer(), sel));
 193                 }
 194         }
 195         if (valid)
 196                 cur.message(from_utf8(N_("Math editor mode")));
 197         else
 198                 cur.message(from_utf8(N_("No valid math formula")));
 199 }
 200
 201
 202 void regexpDispatch(Cursor & cur, FuncRequest const & cmd)
 203 {
 204         LASSERT(cmd.action() == LFUN_REGEXP_MODE, return);
 205         if (cur.inRegexped()) {
 206                 cur.message(_("Already in regular expression mode"));
 207                 return;
 208         }
 209         cur.recordUndo();
 210         docstring sel = cur.selectionAsString(false);
 211
 212         // It may happen that sel is empty but there is a selection
 213         replaceSelection(cur);
 214
 215         cur.insert(new InsetMathHull(cur.buffer(), hullRegexp));
 216         cur.nextInset()->edit(cur, true);
 217         cur.niceInsert(sel);
 218
 219         cur.message(_("Regexp editor mode"));
 220 }
 221
 222
 223 static void specialChar(Cursor & cur, InsetSpecialChar::Kind kind)
 224 {
 225         cur.recordUndo();
 226         cap::replaceSelection(cur);
 227         cur.insert(new InsetSpecialChar(kind));
 228         cur.posForward();
 229 }
 230
 231
 232 static void ipaChar(Cursor & cur, InsetIPAChar::Kind kind)
 233 {
 234         cur.recordUndo();
 235         cap::replaceSelection(cur);
 236         cur.insert(new InsetIPAChar(kind));
 237         cur.posForward();
 238 }
 239
 240
 241 static bool doInsertInset(Cursor & cur, Text * text,
 242         FuncRequest const & cmd, bool edit, bool pastesel)
 243 {
 244         Buffer & buffer = cur.bv().buffer();
 245         BufferParams const & bparams = buffer.params();
 246         Inset * inset = createInset(&buffer, cmd);
 247         if (!inset)
 248                 return false;
 249
 250         if (InsetCollapsable * ci = inset->asInsetCollapsable())
 251                 ci->setButtonLabel();
 252
 253         cur.recordUndo();
 254         if (cmd.action() == LFUN_INDEX_INSERT) {
 255                 docstring ds = subst(text->getStringToIndex(cur), '\n', ' ');
 256                 text->insertInset(cur, inset);
 257                 if (edit)
 258                         inset->edit(cur, true);
 259                 // Now put this into inset
 260                 Font const f(inherit_font, cur.current_font.language());
 261                 if (!ds.empty()) {
 262                         cur.text()->insertStringAsLines(cur, ds, f);
 263                         cur.leaveInset(*inset);
 264                 }
 265                 return true;
 266         }
 267
 268         bool gotsel = false;
 269         if (cur.selection()) {
 270                 cutSelection(cur, false, pastesel);
 271                 cur.clearSelection();
 272                 gotsel = true;
 273         }
 274         text->insertInset(cur, inset);
 275
 276         if (edit)
 277                 inset->edit(cur, true);
 278
 279         if (!gotsel || !pastesel)
 280                 return true;
 281
 282         pasteFromStack(cur, cur.buffer()->errorList("Paste"), 0);
 283         cur.buffer()->errors("Paste");
 284         cur.clearSelection(); // bug 393
 285         cur.finishUndo();
 286         InsetText * inset_text = inset->asInsetText();
 287         if (inset_text) {
 288                 inset_text->fixParagraphsFont();
 289                 if (!inset_text->allowMultiPar() || cur.lastpit() == 0) {
 290                         // reset first par to default
 291                         cur.text()->paragraphs().begin()
 292                                 ->setPlainOrDefaultLayout(bparams.documentClass());
 293                         cur.pos() = 0;
 294                         cur.pit() = 0;
 295                         // Merge multiple paragraphs -- hack
 296                         while (cur.lastpit() > 0)
 297                                 mergeParagraph(bparams, cur.text()->paragraphs(), 0);
 298                         if (cmd.action() == LFUN_FLEX_INSERT)
 299                                 return true;
 300                         Cursor old = cur;
 301                         cur.leaveInset(*inset);
 302                         if (cmd.action() == LFUN_PREVIEW_INSERT
 303                             || cmd.action() == LFUN_IPA_INSERT)
 304                                 // trigger preview
 305                                 notifyCursorLeavesOrEnters(old, cur);
 306                 }
 307         } else {
 308                 cur.leaveInset(*inset);
 309                 // reset surrounding par to default
 310                 DocumentClass const & dc = bparams.documentClass();
 311                 docstring const layoutname = inset->usePlainLayout()
 312                         ? dc.plainLayoutName()
 313                         : dc.defaultLayoutName();
 314                 text->setLayout(cur, layoutname);
 315         }
 316         return true;
 317 }
 318
 319
 320 string const freefont2string()
 321 {
 322         return freefont.toString(toggleall);
 323 }
 324
 325
 326 /// the type of outline operation
 327 enum OutlineOp {
 328         OutlineUp, // Move this header with text down
 329         OutlineDown,   // Move this header with text up
 330         OutlineIn, // Make this header deeper
 331         OutlineOut // Make this header shallower
 332 };
 333
 334
 335 static void outline(OutlineOp mode, Cursor & cur)
 336 {
 337         Buffer & buf = *cur.buffer();
 338         pit_type & pit = cur.pit();
 339         ParagraphList & pars = buf.text().paragraphs();
 340         ParagraphList::iterator const bgn = pars.begin();
 341         // The first paragraph of the area to be copied:
 342         ParagraphList::iterator start = boost::next(bgn, pit);
 343         // The final paragraph of area to be copied:
 344         ParagraphList::iterator finish = start;
 345         ParagraphList::iterator const end = pars.end();
 346
 347         DocumentClass const & tc = buf.params().documentClass();
 348
 349         int const thistoclevel = buf.text().getTocLevel(distance(bgn, start));
 350         int toclevel;
 351
 352         // Move out (down) from this section header
 353         if (finish != end)
 354                 ++finish;
 355
 356         // Seek the one (on same level) below
 357         for (; finish != end; ++finish) {
 358                 toclevel = buf.text().getTocLevel(distance(bgn, finish));
 359                 if (toclevel != Layout::NOT_IN_TOC && toclevel <= thistoclevel)
 360                         break;
 361         }
 362
 363         switch (mode) {
 364                 case OutlineUp: {
 365                         if (start == pars.begin())
 366                                 // Nothing to move.
 367                                 return;
 368                         ParagraphList::iterator dest = start;
 369                         // Move out (up) from this header
 370                         if (dest == bgn)
 371                                 return;
 372                         // Search previous same-level header above
 373                         do {
 374                                 --dest;
 375                                 toclevel = buf.text().getTocLevel(distance(bgn, dest));
 376                         } while(dest != bgn
 377                                 && (toclevel == Layout::NOT_IN_TOC
 378                                     || toclevel > thistoclevel));
 379                         // Not found; do nothing
 380                         if (toclevel == Layout::NOT_IN_TOC || toclevel > thistoclevel)
 381                                 return;
 382                         pit_type const newpit = distance(bgn, dest);
 383                         pit_type const len = distance(start, finish);
 384                         pit_type const deletepit = pit + len;
 385                         buf.undo().recordUndo(cur, ATOMIC_UNDO, newpit, deletepit - 1);
 386                         pars.splice(dest, start, finish);
 387                         cur.pit() = newpit;
 388                         break;
 389                 }
 390                 case OutlineDown: {
 391                         if (finish == end)
 392                                 // Nothing to move.
 393                                 return;
 394                         // Go one down from *this* header:
 395                         ParagraphList::iterator dest = boost::next(finish, 1);
 396                         // Go further down to find header to insert in front of:
 397                         for (; dest != end; ++dest) {
 398                                 toclevel = buf.text().getTocLevel(distance(bgn, dest));
 399                                 if (toclevel != Layout::NOT_IN_TOC
 400                                       && toclevel <= thistoclevel)
 401                                         break;
 402                         }
 403                         // One such was found:
 404                         pit_type newpit = distance(bgn, dest);
 405                         buf.undo().recordUndo(cur, ATOMIC_UNDO, pit, newpit - 1);
 406                         pit_type const len = distance(start, finish);
 407                         pars.splice(dest, start, finish);
 408                         cur.pit() = newpit - len;
 409                         break;
 410                 }
 411                 case OutlineIn: {
 412                         pit_type const len = distance(start, finish);
 413                         buf.undo().recordUndo(cur, ATOMIC_UNDO, pit, pit + len - 1);
 414                         for (; start != finish; ++start) {
 415                                 toclevel = buf.text().getTocLevel(distance(bgn, start));
 416                                 if (toclevel == Layout::NOT_IN_TOC)
 417                                         continue;
 418                                 DocumentClass::const_iterator lit = tc.begin();
 419                                 DocumentClass::const_iterator len = tc.end();
 420                                 for (; lit != len; ++lit) {
 421                                         if (lit->toclevel == toclevel + 1 &&
 422                                             start->layout().labeltype == lit->labeltype) {
 423                                                 start->setLayout(*lit);
 424                                                 break;
 425                                         }
 426                                 }
 427                         }
 428                         break;
 429                 }
 430                 case OutlineOut: {
 431                         pit_type const len = distance(start, finish);
 432                         buf.undo().recordUndo(cur, ATOMIC_UNDO, pit, pit + len - 1);
 433                         for (; start != finish; ++start) {
 434                                 toclevel = buf.text().getTocLevel(distance(bgn, start));
 435                                 if (toclevel == Layout::NOT_IN_TOC)
 436                                         continue;
 437                                 DocumentClass::const_iterator lit = tc.begin();
 438                                 DocumentClass::const_iterator len = tc.end();
 439                                 for (; lit != len; ++lit) {
 440                                         if (lit->toclevel == toclevel - 1 &&
 441                                                 start->layout().labeltype == lit->labeltype) {
 442                                                         start->setLayout(*lit);
 443                                                         break;
 444                                         }
 445                                 }
 446                         }
 447                         break;
 448                 }
 449         }
 450 }
 451
 452
 453 void Text::number(Cursor & cur)
 454 {
 455         FontInfo font = ignore_font;
 456         font.setNumber(FONT_TOGGLE);
 457         toggleAndShow(cur, this, Font(font, ignore_language));
 458 }
 459
 460
 461 bool Text::isRTL(Paragraph const & par) const
 462 {
 463         Buffer const & buffer = owner_->buffer();
 464         return par.isRTL(buffer.params());
 465 }
 466
 467
 468 void Text::dispatch(Cursor & cur, FuncRequest & cmd)
 469 {
 470         LYXERR(Debug::ACTION, "Text::dispatch: cmd: " << cmd);
 471
 472         // Dispatch if the cursor is inside the text. It is not the
 473         // case for context menus (bug 5797).
 474         if (cur.text() != this) {
 475                 cur.undispatched();
 476                 return;
 477         }
 478
 479         BufferView * bv = &cur.bv();
 480         TextMetrics * tm = &bv->textMetrics(this);
 481         if (!tm->contains(cur.pit())) {
 482                 lyx::dispatch(FuncRequest(LFUN_SCREEN_SHOW_CURSOR));
 483                 tm = &bv->textMetrics(this);
 484         }
 485
 486         // FIXME: We use the update flag to indicates wether a singlePar or a
 487         // full screen update is needed. We reset it here but shall we restore it
 488         // at the end?
 489         cur.noScreenUpdate();
 490
 491         LASSERT(cur.text() == this, /**/);
 492         CursorSlice const oldTopSlice = cur.top();
 493         bool const oldBoundary = cur.boundary();
 494         bool const oldSelection = cur.selection();
 495         // Signals that, even if needsUpdate == false, an update of the
 496         // cursor paragraph is required
 497         bool singleParUpdate = lyxaction.funcHasFlag(cmd.action(),
 498                 LyXAction::SingleParUpdate);
 499         // Signals that a full-screen update is required
 500         bool needsUpdate = !(lyxaction.funcHasFlag(cmd.action(),
 501                 LyXAction::NoUpdate) || singleParUpdate);
 502         bool const last_misspelled = lyxrc.spellcheck_continuously
 503                 && cur.paragraph().isMisspelled(cur.pos(), true);
 504
 505         FuncCode const act = cmd.action();
 506         switch (act) {
 507
 508         case LFUN_PARAGRAPH_MOVE_DOWN: {
 509                 pit_type const pit = cur.pit();
 510                 recUndo(cur, pit, pit + 1);
 511                 cur.finishUndo();
 512                 pars_.swap(pit, pit + 1);
 513                 needsUpdate = true;
 514                 cur.forceBufferUpdate();
 515                 ++cur.pit();
 516                 break;
 517         }
 518
 519         case LFUN_PARAGRAPH_MOVE_UP: {
 520                 pit_type const pit = cur.pit();
 521                 recUndo(cur, pit - 1, pit);
 522                 cur.finishUndo();
 523                 pars_.swap(pit, pit - 1);
 524                 --cur.pit();
 525                 needsUpdate = true;
 526                 cur.forceBufferUpdate();
 527                 break;
 528         }
 529
 530         case LFUN_APPENDIX: {
 531                 Paragraph & par = cur.paragraph();
 532                 bool start = !par.params().startOfAppendix();
 533
 534 // FIXME: The code below only makes sense at top level.
 535 // Should LFUN_APPENDIX be restricted to top-level paragraphs?
 536                 // ensure that we have only one start_of_appendix in this document
 537                 // FIXME: this don't work for multipart document!
 538                 for (pit_type tmp = 0, end = pars_.size(); tmp != end; ++tmp) {
 539                         if (pars_[tmp].params().startOfAppendix()) {
 540                                 recUndo(cur, tmp);
 541                                 pars_[tmp].params().startOfAppendix(false);
 542                                 break;
 543                         }
 544                 }
 545
 546                 cur.recordUndo();
 547                 par.params().startOfAppendix(start);
 548
 549                 // we can set the refreshing parameters now
 550                 cur.forceBufferUpdate();
 551                 break;
 552         }
 553
 554         case LFUN_WORD_DELETE_FORWARD:
 555                 if (cur.selection())
 556                         cutSelection(cur, true, false);
 557                 else
 558                         deleteWordForward(cur);
 559                 finishChange(cur, false);
 560                 break;
 561
 562         case LFUN_WORD_DELETE_BACKWARD:
 563                 if (cur.selection())
 564                         cutSelection(cur, true, false);
 565                 else
 566                         deleteWordBackward(cur);
 567                 finishChange(cur, false);
 568                 break;
 569
 570         case LFUN_LINE_DELETE:
 571                 if (cur.selection())
 572                         cutSelection(cur, true, false);
 573                 else
 574                         tm->deleteLineForward(cur);
 575                 finishChange(cur, false);
 576                 break;
 577
 578         case LFUN_BUFFER_BEGIN:
 579         case LFUN_BUFFER_BEGIN_SELECT:
 580                 needsUpdate |= cur.selHandle(act == LFUN_BUFFER_BEGIN_SELECT);
 581                 if (cur.depth() == 1)
 582                         needsUpdate |= cursorTop(cur);
 583                 else
 584                         cur.undispatched();
 585                 cur.screenUpdateFlags(Update::FitCursor);
 586                 break;
 587
 588         case LFUN_BUFFER_END:
 589         case LFUN_BUFFER_END_SELECT:
 590                 needsUpdate |= cur.selHandle(act == LFUN_BUFFER_END_SELECT);
 591                 if (cur.depth() == 1)
 592                         needsUpdate |= cursorBottom(cur);
 593                 else
 594                         cur.undispatched();
 595                 cur.screenUpdateFlags(Update::FitCursor);
 596                 break;
 597
 598         case LFUN_INSET_BEGIN:
 599         case LFUN_INSET_BEGIN_SELECT:
 600                 needsUpdate |= cur.selHandle(act == LFUN_INSET_BEGIN_SELECT);
 601                 if (cur.depth() == 1 || !cur.top().at_begin())
 602                         needsUpdate |= cursorTop(cur);
 603                 else
 604                         cur.undispatched();
 605                 cur.screenUpdateFlags(Update::FitCursor);
 606                 break;
 607
 608         case LFUN_INSET_END:
 609         case LFUN_INSET_END_SELECT:
 610                 needsUpdate |= cur.selHandle(act == LFUN_INSET_END_SELECT);
 611                 if (cur.depth() == 1 || !cur.top().at_end())
 612                         needsUpdate |= cursorBottom(cur);
 613                 else
 614                         cur.undispatched();
 615                 cur.screenUpdateFlags(Update::FitCursor);
 616                 break;
 617
 618         case LFUN_INSET_SELECT_ALL:
 619                 if (cur.depth() == 1 || !cur.selection() || !cur.selBegin().at_begin()
 620                           || !cur.selEnd().at_end()) {
 621                         needsUpdate |= cur.selHandle(false);
 622                         needsUpdate |= cursorTop(cur);
 623                         needsUpdate |= cur.selHandle(true);
 624                         needsUpdate |= cursorBottom(cur);
 625                 } else
 626                         cur.undispatched();
 627                 cur.screenUpdateFlags(Update::FitCursor);
 628                 break;
 629
 630         case LFUN_CHAR_FORWARD:
 631         case LFUN_CHAR_FORWARD_SELECT:
 632                 //LYXERR0(" LFUN_CHAR_FORWARD[SEL]:\n" << cur);
 633                 needsUpdate |= cur.selHandle(act == LFUN_CHAR_FORWARD_SELECT);
 634                 needsUpdate |= cursorForward(cur);
 635
 636                 if (!needsUpdate && oldTopSlice == cur.top()
 637                                 && cur.boundary() == oldBoundary) {
 638                         cur.undispatched();
 639                         cmd = FuncRequest(LFUN_FINISHED_FORWARD);
 640
 641                         // we will probably be moving out the inset, so we should execute
 642                         // the depm-mechanism, but only when the cursor has a place to
 643                         // go outside this inset, i.e. in a slice above.
 644                         if (cur.depth() > 1 && cur.pos() == cur.lastpos()
 645                                   && cur.pit() == cur.lastpit()) {
 646                                 // The cursor hasn't changed yet. To give the
 647                                 // DEPM the possibility of doing something we must
 648                                 // provide it with two different cursors.
 649                                 Cursor dummy = cur;
 650                                 dummy.pos() = dummy.pit() = 0;
 651                                 if (cur.bv().checkDepm(dummy, cur)) {
 652                                         cur.forceBufferUpdate();
 653                                         // DEPM may have requested a screen update
 654                                         cur.screenUpdateFlags(
 655                                                 cur.screenUpdate() | dummy.screenUpdate());
 656                                 }
 657                         }
 658                 }
 659                 break;
 660
 661         case LFUN_CHAR_BACKWARD:
 662         case LFUN_CHAR_BACKWARD_SELECT:
 663                 //lyxerr << "handle LFUN_CHAR_BACKWARD[_SELECT]:\n" << cur << endl;
 664                 needsUpdate |= cur.selHandle(act == LFUN_CHAR_BACKWARD_SELECT);
 665                 needsUpdate |= cursorBackward(cur);
 666
 667                 if (!needsUpdate && oldTopSlice == cur.top()
 668                         && cur.boundary() == oldBoundary) {
 669                         cur.undispatched();
 670                         cmd = FuncRequest(LFUN_FINISHED_BACKWARD);
 671
 672                         // we will probably be moving out the inset, so we should execute
 673                         // the depm-mechanism, but only when the cursor has a place to
 674                         // go outside this inset, i.e. in a slice above.
 675                         if (cur.depth() > 1 && cur.pos() == 0 && cur.pit() == 0) {
 676                                 // The cursor hasn't changed yet. To give the
 677                                 // DEPM the possibility of doing something we must
 678                                 // provide it with two different cursors.
 679                                 Cursor dummy = cur;
 680                                 dummy.pos() = cur.lastpos();
 681                                 dummy.pit() = cur.lastpit();
 682                                 if (cur.bv().checkDepm(dummy, cur)) {
 683                                         cur.forceBufferUpdate();
 684                                         // DEPM may have requested a screen update
 685                                         cur.screenUpdateFlags(
 686                                                 cur.screenUpdate() | dummy.screenUpdate());
 687                                 }
 688                         }
 689                 }
 690                 break;
 691
 692         case LFUN_CHAR_LEFT:
 693         case LFUN_CHAR_LEFT_SELECT:
 694                 if (lyxrc.visual_cursor) {
 695                         needsUpdate |= cur.selHandle(act == LFUN_CHAR_LEFT_SELECT);
 696                         needsUpdate |= cursorVisLeft(cur);
 697                         if (!needsUpdate && oldTopSlice == cur.top()
 698                                         && cur.boundary() == oldBoundary) {
 699                                 cur.undispatched();
 700                                 cmd = FuncRequest(LFUN_FINISHED_LEFT);
 701                         }
 702                 } else {
 703                         if (reverseDirectionNeeded(cur)) {
 704                                 cmd.setAction(cmd.action() == LFUN_CHAR_LEFT_SELECT ?
 705                                         LFUN_CHAR_FORWARD_SELECT : LFUN_CHAR_FORWARD);
 706                         } else {
 707                                 cmd.setAction(cmd.action() == LFUN_CHAR_LEFT_SELECT ?
 708                                         LFUN_CHAR_BACKWARD_SELECT : LFUN_CHAR_BACKWARD);
 709                         }
 710                         dispatch(cur, cmd);
 711                         return;
 712                 }
 713                 break;
 714
 715         case LFUN_CHAR_RIGHT:
 716         case LFUN_CHAR_RIGHT_SELECT:
 717                 if (lyxrc.visual_cursor) {
 718                         needsUpdate |= cur.selHandle(cmd.action() == LFUN_CHAR_RIGHT_SELECT);
 719                         needsUpdate |= cursorVisRight(cur);
 720                         if (!needsUpdate && oldTopSlice == cur.top()
 721                                         && cur.boundary() == oldBoundary) {
 722                                 cur.undispatched();
 723                                 cmd = FuncRequest(LFUN_FINISHED_RIGHT);
 724                         }
 725                 } else {
 726                         if (reverseDirectionNeeded(cur)) {
 727                                 cmd.setAction(cmd.action() == LFUN_CHAR_RIGHT_SELECT ?
 728                                         LFUN_CHAR_BACKWARD_SELECT : LFUN_CHAR_BACKWARD);
 729                         } else {
 730                                 cmd.setAction(cmd.action() == LFUN_CHAR_RIGHT_SELECT ?
 731                                         LFUN_CHAR_FORWARD_SELECT : LFUN_CHAR_FORWARD);
 732                         }
 733                         dispatch(cur, cmd);
 734                         return;
 735                 }
 736                 break;
 737
 738
 739         case LFUN_UP_SELECT:
 740         case LFUN_DOWN_SELECT:
 741         case LFUN_UP:
 742         case LFUN_DOWN: {
 743                 // stop/start the selection
 744                 bool select = cmd.action() == LFUN_DOWN_SELECT ||
 745                         cmd.action() == LFUN_UP_SELECT;
 746
 747                 // move cursor up/down
 748                 bool up = cmd.action() == LFUN_UP_SELECT || cmd.action() == LFUN_UP;
 749                 bool const atFirstOrLastRow = cur.atFirstOrLastRow(up);
 750
 751                 if (!atFirstOrLastRow) {
 752                         needsUpdate |= cur.selHandle(select);
 753                         cur.selHandle(select);
 754                         cur.upDownInText(up, needsUpdate);
 755                         needsUpdate |= cur.beforeDispatchCursor().inMathed();
 756                 } else {
 757                         // if the cursor cannot be moved up or down do not remove
 758                         // the selection right now, but wait for the next dispatch.
 759                         if (select)
 760                                 needsUpdate |= cur.selHandle(select);
 761                         cur.upDownInText(up, needsUpdate);
 762                         cur.undispatched();
 763                 }
 764
 765                 break;
 766         }
 767
 768         case LFUN_PARAGRAPH_UP:
 769         case LFUN_PARAGRAPH_UP_SELECT:
 770                 needsUpdate |= cur.selHandle(cmd.action() == LFUN_PARAGRAPH_UP_SELECT);
 771                 needsUpdate |= cursorUpParagraph(cur);
 772                 break;
 773
 774         case LFUN_PARAGRAPH_DOWN:
 775         case LFUN_PARAGRAPH_DOWN_SELECT:
 776                 needsUpdate |= cur.selHandle(cmd.action() == LFUN_PARAGRAPH_DOWN_SELECT);
 777                 needsUpdate |= cursorDownParagraph(cur);
 778                 break;
 779
 780         case LFUN_LINE_BEGIN:
 781         case LFUN_LINE_BEGIN_SELECT:
 782                 needsUpdate |= cur.selHandle(cmd.action() == LFUN_LINE_BEGIN_SELECT);
 783                 needsUpdate |= tm->cursorHome(cur);
 784                 break;
 785
 786         case LFUN_LINE_END:
 787         case LFUN_LINE_END_SELECT:
 788                 needsUpdate |= cur.selHandle(cmd.action() == LFUN_LINE_END_SELECT);
 789                 needsUpdate |= tm->cursorEnd(cur);
 790                 break;
 791
 792         case LFUN_SECTION_SELECT: {
 793                 Buffer const & buf = *cur.buffer();
 794                 pit_type const pit = cur.pit();
 795                 ParagraphList & pars = buf.text().paragraphs();
 796                 ParagraphList::iterator bgn = pars.begin();
 797                 // The first paragraph of the area to be selected:
 798                 ParagraphList::iterator start = boost::next(bgn, pit);
 799                 // The final paragraph of area to be selected:
 800                 ParagraphList::iterator finish = start;
 801                 ParagraphList::iterator end = pars.end();
 802
 803                 int const thistoclevel = buf.text().getTocLevel(distance(bgn, start));
 804                 if (thistoclevel == Layout::NOT_IN_TOC)
 805                         break;
 806
 807                 cur.pos() = 0;
 808                 Cursor const old_cur = cur;
 809                 needsUpdate |= cur.selHandle(true);
 810
 811                 // Move out (down) from this section header
 812                 if (finish != end)
 813                         ++finish;
 814
 815                 // Seek the one (on same level) below
 816                 for (; finish != end; ++finish, ++cur.pit()) {
 817                         int const toclevel = buf.text().getTocLevel(distance(bgn, finish));
 818                         if (toclevel != Layout::NOT_IN_TOC && toclevel <= thistoclevel)
 819                                 break;
 820                 }
 821                 cur.pos() = cur.lastpos();
 822
 823                 needsUpdate |= cur != old_cur;
 824                 break;
 825         }
 826
 827         case LFUN_WORD_RIGHT:
 828         case LFUN_WORD_RIGHT_SELECT:
 829                 if (lyxrc.visual_cursor) {
 830                         needsUpdate |= cur.selHandle(cmd.action() == LFUN_WORD_RIGHT_SELECT);
 831                         needsUpdate |= cursorVisRightOneWord(cur);
 832                         if (!needsUpdate && oldTopSlice == cur.top()
 833                                         && cur.boundary() == oldBoundary) {
 834                                 cur.undispatched();
 835                                 cmd = FuncRequest(LFUN_FINISHED_RIGHT);
 836                         }
 837                 } else {
 838                         if (reverseDirectionNeeded(cur)) {
 839                                 cmd.setAction(cmd.action() == LFUN_WORD_RIGHT_SELECT ?
 840                                                 LFUN_WORD_BACKWARD_SELECT : LFUN_WORD_BACKWARD);
 841                         } else {
 842                                 cmd.setAction(cmd.action() == LFUN_WORD_RIGHT_SELECT ?
 843                                                 LFUN_WORD_FORWARD_SELECT : LFUN_WORD_FORWARD);
 844                         }
 845                         dispatch(cur, cmd);
 846                         return;
 847                 }
 848                 break;
 849
 850         case LFUN_WORD_FORWARD:
 851         case LFUN_WORD_FORWARD_SELECT:
 852                 needsUpdate |= cur.selHandle(cmd.action() == LFUN_WORD_FORWARD_SELECT);
 853                 needsUpdate |= cursorForwardOneWord(cur);
 854
 855                 if (!needsUpdate && oldTopSlice == cur.top()
 856                                 && cur.boundary() == oldBoundary) {
 857                         cur.undispatched();
 858                         cmd = FuncRequest(LFUN_FINISHED_FORWARD);
 859
 860                         // we will probably be moving out the inset, so we should execute
 861                         // the depm-mechanism, but only when the cursor has a place to
 862                         // go outside this inset, i.e. in a slice above.
 863                         if (cur.depth() > 1 && cur.pos() == cur.lastpos()
 864                                   && cur.pit() == cur.lastpit()) {
 865                                 // The cursor hasn't changed yet. To give the
 866                                 // DEPM the possibility of doing something we must
 867                                 // provide it with two different cursors.
 868                                 Cursor dummy = cur;
 869                                 dummy.pos() = dummy.pit() = 0;
 870                                 if (cur.bv().checkDepm(dummy, cur)) {
 871                                         cur.forceBufferUpdate();
 872                                         // DEPM may have requested a screen update
 873                                         cur.screenUpdateFlags(
 874                                                 cur.screenUpdate() | dummy.screenUpdate());
 875                                 }
 876                         }
 877                 }
 878                 break;
 879
 880         case LFUN_WORD_LEFT:
 881         case LFUN_WORD_LEFT_SELECT:
 882                 if (lyxrc.visual_cursor) {
 883                         needsUpdate |= cur.selHandle(cmd.action() == LFUN_WORD_LEFT_SELECT);
 884                         needsUpdate |= cursorVisLeftOneWord(cur);
 885                         if (!needsUpdate && oldTopSlice == cur.top()
 886                                         && cur.boundary() == oldBoundary) {
 887                                 cur.undispatched();
 888                                 cmd = FuncRequest(LFUN_FINISHED_LEFT);
 889                         }
 890                 } else {
 891                         if (reverseDirectionNeeded(cur)) {
 892                                 cmd.setAction(cmd.action() == LFUN_WORD_LEFT_SELECT ?
 893                                                 LFUN_WORD_FORWARD_SELECT : LFUN_WORD_FORWARD);
 894                         } else {
 895                                 cmd.setAction(cmd.action() == LFUN_WORD_LEFT_SELECT ?
 896                                                 LFUN_WORD_BACKWARD_SELECT : LFUN_WORD_BACKWARD);
 897                         }
 898                         dispatch(cur, cmd);
 899                         return;
 900                 }
 901                 break;
 902
 903         case LFUN_WORD_BACKWARD:
 904         case LFUN_WORD_BACKWARD_SELECT:
 905                 needsUpdate |= cur.selHandle(cmd.action() == LFUN_WORD_BACKWARD_SELECT);
 906                 needsUpdate |= cursorBackwardOneWord(cur);
 907
 908                 if (!needsUpdate && oldTopSlice == cur.top()
 909                                 && cur.boundary() == oldBoundary) {
 910                         cur.undispatched();
 911                         cmd = FuncRequest(LFUN_FINISHED_BACKWARD);
 912
 913                         // we will probably be moving out the inset, so we should execute
 914                         // the depm-mechanism, but only when the cursor has a place to
 915                         // go outside this inset, i.e. in a slice above.
 916                         if (cur.depth() > 1 && cur.pos() == 0
 917                                   && cur.pit() == 0) {
 918                                 // The cursor hasn't changed yet. To give the
 919                                 // DEPM the possibility of doing something we must
 920                                 // provide it with two different cursors.
 921                                 Cursor dummy = cur;
 922                                 dummy.pos() = cur.lastpos();
 923                                 dummy.pit() = cur.lastpit();
 924                                 if (cur.bv().checkDepm(dummy, cur)) {
 925                                         cur.forceBufferUpdate();
 926                                         // DEPM may have requested a screen update
 927                                         cur.screenUpdateFlags(
 928                                                 cur.screenUpdate() | dummy.screenUpdate());
 929                                 }
 930                         }
 931                 }
 932                 break;
 933
 934         case LFUN_WORD_SELECT: {
 935                 selectWord(cur, WHOLE_WORD);
 936                 finishChange(cur, true);
 937                 break;
 938         }
 939
 940         case LFUN_NEWLINE_INSERT: {
 941                 InsetNewlineParams inp;
 942                 docstring arg = cmd.argument();
 943                 // this avoids a double undo
 944                 // FIXME: should not be needed, ideally
 945                 if (!cur.selection())
 946                         cur.recordUndo();
 947                 cap::replaceSelection(cur);
 948                 if (arg == "linebreak")
 949                         inp.kind = InsetNewlineParams::LINEBREAK;
 950                 else
 951                         inp.kind = InsetNewlineParams::NEWLINE;
 952                 cur.insert(new InsetNewline(inp));
 953                 cur.posForward();
 954                 moveCursor(cur, false);
 955                 break;
 956         }
 957
 958         case LFUN_TAB_INSERT: {
 959                 bool const multi_par_selection = cur.selection() &&
 960                         cur.selBegin().pit() != cur.selEnd().pit();
 961                 if (multi_par_selection) {
 962                         // If there is a multi-paragraph selection, a tab is inserted
 963                         // at the beginning of each paragraph.
 964                         cur.recordUndoSelection();
 965                         pit_type const pit_end = cur.selEnd().pit();
 966                         for (pit_type pit = cur.selBegin().pit(); pit <= pit_end; pit++) {
 967                                 pars_[pit].insertChar(0, '\t',
 968                                                       bv->buffer().params().trackChanges);
 969                                 // Update the selection pos to make sure the selection does not
 970                                 // change as the inserted tab will increase the logical pos.
 971                                 if (cur.realAnchor().pit() == pit)
 972                                         cur.realAnchor().forwardPos();
 973                                 if (cur.pit() == pit)
 974                                         cur.forwardPos();
 975                         }
 976                         cur.finishUndo();
 977                 } else {
 978                         // Maybe we shouldn't allow tabs within a line, because they
 979                         // are not (yet) aligned as one might do expect.
 980                         FuncRequest cmd(LFUN_SELF_INSERT, from_ascii("\t"));
 981                         dispatch(cur, cmd);
 982                 }
 983                 break;
 984         }
 985
 986         case LFUN_TAB_DELETE: {
 987                 bool const tc = bv->buffer().params().trackChanges;
 988                 if (cur.selection()) {
 989                         // If there is a selection, a tab (if present) is removed from
 990                         // the beginning of each paragraph.
 991                         cur.recordUndoSelection();
 992                         pit_type const pit_end = cur.selEnd().pit();
 993                         for (pit_type pit = cur.selBegin().pit(); pit <= pit_end; pit++) {
 994                                 Paragraph & par = paragraphs()[pit];
 995                                 if (par.empty())
 996                                         continue;
 997                                 char_type const c = par.getChar(0);
 998                                 if (c == '\t' || c == ' ') {
 999                                         // remove either 1 tab or 4 spaces.
1000                                         int const n = (c == ' ' ? 4 : 1);
1001                                         for (int i = 0; i < n
1002                                                   && !par.empty() && par.getChar(0) == c; ++i) {
1003                                                 if (cur.pit() == pit)
1004                                                         cur.posBackward();
1005                                                 if (cur.realAnchor().pit() == pit
1006                                                           && cur.realAnchor().pos() > 0 )
1007                                                         cur.realAnchor().backwardPos();
1008                                                 par.eraseChar(0, tc);
1009                                         }
1010                                 }
1011                         }
1012                         cur.finishUndo();
1013                 } else {
1014                         // If there is no selection, try to remove a tab or some spaces
1015                         // before the position of the cursor.
1016                         Paragraph & par = paragraphs()[cur.pit()];
1017                         pos_type const pos = cur.pos();
1018
1019                         if (pos == 0)
1020                                 break;
1021
1022                         char_type const c = par.getChar(pos - 1);
1023                         cur.recordUndo();
1024                         if (c == '\t') {
1025                                 cur.posBackward();
1026                                 par.eraseChar(cur.pos(), tc);
1027                         } else
1028                                 for (int n_spaces = 0;
1029                                      cur.pos() > 0
1030                                              && par.getChar(cur.pos() - 1) == ' '
1031                                              && n_spaces < 4;
1032                                      ++n_spaces) {
1033                                         cur.posBackward();
1034                                         par.eraseChar(cur.pos(), tc);
1035                                 }
1036                         cur.finishUndo();
1037                 }
1038                 break;
1039         }
1040
1041         case LFUN_CHAR_DELETE_FORWARD:
1042                 if (!cur.selection()) {
1043                         if (cur.pos() == cur.paragraph().size())
1044                                 // Par boundary, force full-screen update
1045                                 singleParUpdate = false;
1046                         needsUpdate |= erase(cur);
1047                         cur.resetAnchor();
1048                         // It is possible to make it a lot faster still
1049                         // just comment out the line below...
1050                 } else {
1051                         cutSelection(cur, true, false);
1052                         singleParUpdate = false;
1053                 }
1054                 moveCursor(cur, false);
1055                 break;
1056
1057         case LFUN_CHAR_DELETE_BACKWARD:
1058                 if (!cur.selection()) {
1059                         if (bv->getIntl().getTransManager().backspace()) {
1060                                 // Par boundary, full-screen update
1061                                 if (cur.pos() == 0)
1062                                         singleParUpdate = false;
1063                                 needsUpdate |= backspace(cur);
1064                                 cur.resetAnchor();
1065                                 // It is possible to make it a lot faster still
1066                                 // just comment out the line below...
1067                         }
1068                 } else {
1069                         cutSelection(cur, true, false);
1070                         singleParUpdate = false;
1071                 }
1072                 break;
1073
1074         case LFUN_PARAGRAPH_BREAK:
1075                 cap::replaceSelection(cur);
1076                 breakParagraph(cur, cmd.argument() == "inverse");
1077                 cur.resetAnchor();
1078                 break;
1079
1080         case LFUN_INSET_INSERT: {
1081                 cur.recordUndo();
1082
1083                 // We have to avoid triggering InstantPreview loading
1084                 // before inserting into the document. See bug #5626.
1085                 bool loaded = bv->buffer().isFullyLoaded();
1086                 bv->buffer().setFullyLoaded(false);
1087                 Inset * inset = createInset(&bv->buffer(), cmd);
1088                 bv->buffer().setFullyLoaded(loaded);
1089
1090                 if (inset) {
1091                         // FIXME (Abdel 01/02/2006):
1092                         // What follows would be a partial fix for bug 2154:
1093                         //   http://www.lyx.org/trac/ticket/2154
1094                         // This automatically put the label inset _after_ a
1095                         // numbered section. It should be possible to extend the mechanism
1096                         // to any kind of LateX environement.
1097                         // The correct way to fix that bug would be at LateX generation.
1098                         // I'll let the code here for reference as it could be used for some
1099                         // other feature like "automatic labelling".
1100                         /*
1101                         Paragraph & par = pars_[cur.pit()];
1102                         if (inset->lyxCode() == LABEL_CODE
1103                                 && par.layout().labeltype == LABEL_COUNTER) {
1104                                 // Go to the end of the paragraph
1105                                 // Warning: Because of Change-Tracking, the last
1106                                 // position is 'size()' and not 'size()-1':
1107                                 cur.pos() = par.size();
1108                                 // Insert a new paragraph
1109                                 FuncRequest fr(LFUN_BREAK_PARAGRAPH);
1110                                 dispatch(cur, fr);
1111                         }
1112                         */
1113                         if (cur.selection())
1114                                 cutSelection(cur, true, false);
1115                         cur.insert(inset);
1116                         if (inset->editable() && inset->asInsetText())
1117                                 inset->edit(cur, true);
1118                         else
1119                                 cur.posForward();
1120
1121                         // trigger InstantPreview now
1122                         if (inset->lyxCode() == EXTERNAL_CODE) {
1123                                 InsetExternal & ins =
1124                                         static_cast<InsetExternal &>(*inset);
1125                                 ins.updatePreview();
1126                         }
1127                 }
1128
1129                 break;
1130         }
1131
1132         case LFUN_INSET_DISSOLVE: {
1133                 if (dissolveInset(cur)) {
1134                         needsUpdate = true;
1135                         cur.forceBufferUpdate();
1136                 }
1137                 break;
1138         }
1139
1140         case LFUN_SET_GRAPHICS_GROUP: {
1141                 InsetGraphics * ins = graphics::getCurrentGraphicsInset(cur);
1142                 if (!ins)
1143                         break;
1144
1145                 cur.recordUndo();
1146
1147                 string id = to_utf8(cmd.argument());
1148                 string grp = graphics::getGroupParams(bv->buffer(), id);
1149                 InsetGraphicsParams tmp, inspar = ins->getParams();
1150
1151                 if (id.empty())
1152                         inspar.groupId = to_utf8(cmd.argument());
1153                 else {
1154                         InsetGraphics::string2params(grp, bv->buffer(), tmp);
1155                         tmp.filename = inspar.filename;
1156                         inspar = tmp;
1157                 }
1158
1159                 ins->setParams(inspar);
1160         }
1161
1162         case LFUN_SPACE_INSERT:
1163                 if (cur.paragraph().layout().free_spacing)
1164                         insertChar(cur, ' ');
1165                 else {
1166                         doInsertInset(cur, this, cmd, false, false);
1167                         cur.posForward();
1168                 }
1169                 moveCursor(cur, false);
1170                 break;
1171
1172         case LFUN_SPECIALCHAR_INSERT: {
1173                 string const name = to_utf8(cmd.argument());
1174                 if (name == "hyphenation")
1175                         specialChar(cur, InsetSpecialChar::HYPHENATION);
1176                 else if (name == "ligature-break")
1177                         specialChar(cur, InsetSpecialChar::LIGATURE_BREAK);
1178                 else if (name == "slash")
1179                         specialChar(cur, InsetSpecialChar::SLASH);
1180                 else if (name == "nobreakdash")
1181                         specialChar(cur, InsetSpecialChar::NOBREAKDASH);
1182                 else if (name == "dots")
1183                         specialChar(cur, InsetSpecialChar::LDOTS);
1184                 else if (name == "end-of-sentence")
1185                         specialChar(cur, InsetSpecialChar::END_OF_SENTENCE);
1186                 else if (name == "menu-separator")
1187                         specialChar(cur, InsetSpecialChar::MENU_SEPARATOR);
1188                 else if (name.empty())
1189                         lyxerr << "LyX function 'specialchar-insert' needs an argument." << endl;
1190                 else
1191                         lyxerr << "Wrong argument for LyX function 'specialchar-insert'." << endl;
1192                 break;
1193         }
1194
1195         case LFUN_IPAMACRO_INSERT: {
1196                 string const arg = cmd.getArg(0);
1197                 if (arg == "deco") {
1198                         // Open the inset, and move the current selection
1199                         // inside it.
1200                         doInsertInset(cur, this, cmd, true, true);
1201                         cur.posForward();
1202                         // Some insets are numbered, others are shown in the outline pane so
1203                         // let's update the labels and the toc backend.
1204                         cur.forceBufferUpdate();
1205                         break;
1206                 }
1207                 if (arg == "tone-falling")
1208                         ipaChar(cur, InsetIPAChar::TONE_FALLING);
1209                 else if (arg == "tone-rising")
1210                         ipaChar(cur, InsetIPAChar::TONE_RISING);
1211                 else if (arg == "tone-high-rising")
1212                         ipaChar(cur, InsetIPAChar::TONE_HIGH_RISING);
1213                 else if (arg == "tone-low-rising")
1214                         ipaChar(cur, InsetIPAChar::TONE_LOW_RISING);
1215                 else if (arg == "tone-high-rising-falling")
1216                         ipaChar(cur, InsetIPAChar::TONE_HIGH_RISING_FALLING);
1217                 else if (arg.empty())
1218                         lyxerr << "LyX function 'ipamacro-insert' needs an argument." << endl;
1219                 else
1220                         lyxerr << "Wrong argument for LyX function 'ipamacro-insert'." << endl;
1221                 break;
1222         }
1223
1224         case LFUN_WORD_UPCASE:
1225                 changeCase(cur, text_uppercase);
1226                 break;
1227
1228         case LFUN_WORD_LOWCASE:
1229                 changeCase(cur, text_lowercase);
1230                 break;
1231
1232         case LFUN_WORD_CAPITALIZE:
1233                 changeCase(cur, text_capitalization);
1234                 break;
1235
1236         case LFUN_CHARS_TRANSPOSE:
1237                 charsTranspose(cur);
1238                 break;
1239
1240         case LFUN_PASTE: {
1241                 cur.message(_("Paste"));
1242                 LASSERT(cur.selBegin().idx() == cur.selEnd().idx(), /**/);
1243                 cap::replaceSelection(cur);
1244
1245                 // without argument?
1246                 string const arg = to_utf8(cmd.argument());
1247                 if (arg.empty()) {
1248                         if (theClipboard().isInternal())
1249                                 pasteFromStack(cur, bv->buffer().errorList("Paste"), 0);
1250                         else if (theClipboard().hasGraphicsContents()
1251                                      && !theClipboard().hasTextContents())
1252                                 pasteClipboardGraphics(cur, bv->buffer().errorList("Paste"));
1253                         else
1254                                 pasteClipboardText(cur, bv->buffer().errorList("Paste"));
1255                 } else if (isStrUnsignedInt(arg)) {
1256                         // we have a numerical argument
1257                         pasteFromStack(cur, bv->buffer().errorList("Paste"),
1258                                        convert<unsigned int>(arg));
1259                 } else {
1260                         Clipboard::GraphicsType type = Clipboard::AnyGraphicsType;
1261                         if (arg == "pdf")
1262                                 type = Clipboard::PdfGraphicsType;
1263                         else if (arg == "png")
1264                                 type = Clipboard::PngGraphicsType;
1265                         else if (arg == "jpeg")
1266                                 type = Clipboard::JpegGraphicsType;
1267                         else if (arg == "linkback")
1268                                 type = Clipboard::LinkBackGraphicsType;
1269                         else if (arg == "emf")
1270                                 type = Clipboard::EmfGraphicsType;
1271                         else if (arg == "wmf")
1272                                 type = Clipboard::WmfGraphicsType;
1273
1274                         else
1275                                 LASSERT(false, /**/);
1276
1277                         pasteClipboardGraphics(cur, bv->buffer().errorList("Paste"), type);
1278                 }
1279
1280                 bv->buffer().errors("Paste");
1281                 cur.clearSelection(); // bug 393
1282                 cur.finishUndo();
1283                 break;
1284         }
1285
1286         case LFUN_CUT:
1287                 cutSelection(cur, true, true);
1288                 cur.message(_("Cut"));
1289                 break;
1290
1291         case LFUN_COPY:
1292                 copySelection(cur);
1293                 cur.message(_("Copy"));
1294                 break;
1295
1296         case LFUN_SERVER_GET_XY:
1297                 cur.message(from_utf8(
1298                         convert<string>(tm->cursorX(cur.top(), cur.boundary()))
1299                         + ' ' + convert<string>(tm->cursorY(cur.top(), cur.boundary()))));
1300                 break;
1301
1302         case LFUN_SERVER_SET_XY: {
1303                 int x = 0;
1304                 int y = 0;
1305                 istringstream is(to_utf8(cmd.argument()));
1306                 is >> x >> y;
1307                 if (!is)
1308                         lyxerr << "SETXY: Could not parse coordinates in '"
1309                                << to_utf8(cmd.argument()) << endl;
1310                 else
1311                         tm->setCursorFromCoordinates(cur, x, y);
1312                 break;
1313         }
1314
1315         case LFUN_SERVER_GET_LAYOUT:
1316                 cur.message(cur.paragraph().layout().name());
1317                 break;
1318
1319         case LFUN_LAYOUT: {
1320                 docstring layout = cmd.argument();
1321                 LYXERR(Debug::INFO, "LFUN_LAYOUT: (arg) " << to_utf8(layout));
1322
1323                 Paragraph const & para = cur.paragraph();
1324                 docstring const old_layout = para.layout().name();
1325                 DocumentClass const & tclass = bv->buffer().params().documentClass();
1326
1327                 if (layout.empty())
1328                         layout = tclass.defaultLayoutName();
1329
1330                 if (owner_->forcePlainLayout())
1331                         // in this case only the empty layout is allowed
1332                         layout = tclass.plainLayoutName();
1333                 else if (para.usePlainLayout()) {
1334                         // in this case, default layout maps to empty layout
1335                         if (layout == tclass.defaultLayoutName())
1336                                 layout = tclass.plainLayoutName();
1337                 } else {
1338                         // otherwise, the empty layout maps to the default
1339                         if (layout == tclass.plainLayoutName())
1340                                 layout = tclass.defaultLayoutName();
1341                 }
1342
1343                 bool hasLayout = tclass.hasLayout(layout);
1344
1345                 // If the entry is obsolete, use the new one instead.
1346                 if (hasLayout) {
1347                         docstring const & obs = tclass[layout].obsoleted_by();
1348                         if (!obs.empty())
1349                                 layout = obs;
1350                 }
1351
1352                 if (!hasLayout) {
1353                         cur.errorMessage(from_utf8(N_("Layout ")) + cmd.argument() +
1354                                 from_utf8(N_(" not known")));
1355                         break;
1356                 }
1357
1358                 bool change_layout = (old_layout != layout);
1359
1360                 if (!change_layout && cur.selection() &&
1361                         cur.selBegin().pit() != cur.selEnd().pit())
1362                 {
1363                         pit_type spit = cur.selBegin().pit();
1364                         pit_type epit = cur.selEnd().pit() + 1;
1365                         while (spit != epit) {
1366                                 if (pars_[spit].layout().name() != old_layout) {
1367                                         change_layout = true;
1368                                         break;
1369                                 }
1370                                 ++spit;
1371                         }
1372                 }
1373
1374                 if (change_layout)
1375                         setLayout(cur, layout);
1376
1377                 Layout::LaTeXArgMap args = tclass[layout].latexargs();
1378                 Layout::LaTeXArgMap itemargs = tclass[layout].itemargs();
1379                 if (!itemargs.empty())
1380                         args.insert(itemargs.begin(), itemargs.end());
1381                 Layout::LaTeXArgMap::const_iterator lait = args.begin();
1382                 Layout::LaTeXArgMap::const_iterator const laend = args.end();
1383                 for (; lait != laend; ++lait) {
1384                         Layout::latexarg arg = (*lait).second;
1385                         if (arg.autoinsert) {
1386                                 FuncRequest cmd(LFUN_ARGUMENT_INSERT, (*lait).first);
1387                                 lyx::dispatch(cmd);
1388                         }
1389                 }
1390
1391                 break;
1392         }
1393
1394         case LFUN_CLIPBOARD_PASTE:
1395                 cap::replaceSelection(cur);
1396                 pasteClipboardText(cur, bv->buffer().errorList("Paste"),
1397                                cmd.argument() == "paragraph");
1398                 bv->buffer().errors("Paste");
1399                 break;
1400
1401         case LFUN_CLIPBOARD_PASTE_SIMPLE:
1402                 cap::replaceSelection(cur);
1403                 pasteSimpleText(cur, cmd.argument() == "paragraph");
1404                 break;
1405
1406         case LFUN_PRIMARY_SELECTION_PASTE:
1407                 cap::replaceSelection(cur);
1408                 pasteString(cur, theSelection().get(),
1409                             cmd.argument() == "paragraph");
1410                 break;
1411
1412         case LFUN_SELECTION_PASTE:
1413                 // Copy the selection buffer to the clipboard stack,
1414                 // because we want it to appear in the "Edit->Paste
1415                 // recent" menu.
1416                 cap::replaceSelection(cur);
1417                 cap::copySelectionToStack();
1418                 cap::pasteSelection(bv->cursor(), bv->buffer().errorList("Paste"));
1419                 bv->buffer().errors("Paste");
1420                 break;
1421
1422         case LFUN_UNICODE_INSERT: {
1423                 if (cmd.argument().empty())
1424                         break;
1425                 docstring hexstring = cmd.argument();
1426                 if (isHex(hexstring)) {
1427                         char_type c = hexToInt(hexstring);
1428                         if (c >= 32 && c < 0x10ffff) {
1429                                 lyxerr << "Inserting c: " << c << endl;
1430                                 docstring s = docstring(1, c);
1431                                 lyx::dispatch(FuncRequest(LFUN_SELF_INSERT, s));
1432                         }
1433                 }
1434                 break;
1435         }
1436
1437         case LFUN_QUOTE_INSERT: {
1438                 // this avoids a double undo
1439                 // FIXME: should not be needed, ideally
1440                 if (!cur.selection())
1441                         cur.recordUndo();
1442                 cap::replaceSelection(cur);
1443
1444                 Paragraph const & par = cur.paragraph();
1445                 pos_type pos = cur.pos();
1446
1447                 BufferParams const & bufparams = bv->buffer().params();
1448                 bool const hebrew =
1449                         par.getFontSettings(bufparams, pos).language()->lang() == "hebrew";
1450                 bool const allow_inset_quote = !(par.isPassThru() || hebrew);
1451
1452                 if (allow_inset_quote) {
1453                         char_type c = ' ';
1454                         if (pos > 0 && (!cur.prevInset() || !cur.prevInset()->isSpace()))
1455                                 c = par.getChar(pos - 1);
1456                         string const arg = to_utf8(cmd.argument());
1457                         InsetQuotes::QuoteTimes const quote_type = (arg == "single")
1458                                 ? InsetQuotes::SingleQuotes : InsetQuotes::DoubleQuotes;
1459                         cur.insert(new InsetQuotes(cur.buffer(), c, quote_type));
1460                         cur.posForward();
1461                 } else {
1462                         // The cursor might have been invalidated by the replaceSelection.
1463                         cur.buffer()->changed(true);
1464                         lyx::dispatch(FuncRequest(LFUN_SELF_INSERT, "\""));
1465                 }
1466                 break;
1467         }
1468
1469         case LFUN_DATE_INSERT: {
1470                 string const format = cmd.argument().empty()
1471                         ? lyxrc.date_insert_format : to_utf8(cmd.argument());
1472                 string const time = formatted_time(current_time(), format);
1473                 lyx::dispatch(FuncRequest(LFUN_SELF_INSERT, time));
1474                 break;
1475         }
1476
1477         case LFUN_MOUSE_TRIPLE:
1478                 if (cmd.button() == mouse_button::button1) {
1479                         tm->cursorHome(cur);
1480                         cur.resetAnchor();
1481                         tm->cursorEnd(cur);
1482                         cur.setSelection();
1483                         bv->cursor() = cur;
1484                 }
1485                 break;
1486
1487         case LFUN_MOUSE_DOUBLE:
1488                 if (cmd.button() == mouse_button::button1) {
1489                         selectWord(cur, WHOLE_WORD_STRICT);
1490                         bv->cursor() = cur;
1491                 }
1492                 break;
1493
1494         // Single-click on work area
1495         case LFUN_MOUSE_PRESS: {
1496                 // We are not marking a selection with the keyboard in any case.
1497                 Cursor & bvcur = cur.bv().cursor();
1498                 bvcur.setMark(false);
1499                 switch (cmd.button()) {
1500                 case mouse_button::button1:
1501                         // Set the cursor
1502                         if (!bv->mouseSetCursor(cur, cmd.argument() == "region-select"))
1503                                 cur.screenUpdateFlags(Update::SinglePar | Update::FitCursor);
1504                         if (bvcur.wordSelection())
1505                                 selectWord(bvcur, WHOLE_WORD);
1506                         break;
1507
1508                 case mouse_button::button2:
1509                         // Middle mouse pasting.
1510                         bv->mouseSetCursor(cur);
1511                         lyx::dispatch(
1512                                 FuncRequest(LFUN_COMMAND_ALTERNATIVES,
1513                                             "selection-paste ; primary-selection-paste paragraph"));
1514                         cur.noScreenUpdate();
1515                         break;
1516
1517                 case mouse_button::button3: {
1518                         // Don't do anything if we right-click a
1519                         // selection, a context menu will popup.
1520                         if (bvcur.selection() && cur >= bvcur.selectionBegin()
1521                             && cur < bvcur.selectionEnd()) {
1522                                 cur.noScreenUpdate();
1523                                 return;
1524                         }
1525                         if (!bv->mouseSetCursor(cur, false))
1526                                 cur.screenUpdateFlags(Update::SinglePar | Update::FitCursor);
1527                         break;
1528                 }
1529
1530                 default:
1531                         break;
1532                 } // switch (cmd.button())
1533                 break;
1534         }
1535         case LFUN_MOUSE_MOTION: {
1536                 // Mouse motion with right or middle mouse do nothing for now.
1537                 if (cmd.button() != mouse_button::button1) {
1538                         cur.noScreenUpdate();
1539                         return;
1540                 }
1541                 // ignore motions deeper nested than the real anchor
1542                 Cursor & bvcur = cur.bv().cursor();
1543                 if (!bvcur.realAnchor().hasPart(cur)) {
1544                         cur.undispatched();
1545                         break;
1546                 }
1547                 CursorSlice old = bvcur.top();
1548
1549                 int const wh = bv->workHeight();
1550                 int const y = max(0, min(wh - 1, cmd.y()));
1551
1552                 tm->setCursorFromCoordinates(cur, cmd.x(), y);
1553                 cur.setTargetX(cmd.x());
1554                 if (cmd.y() >= wh)
1555                         lyx::dispatch(FuncRequest(LFUN_DOWN_SELECT));
1556                 else if (cmd.y() < 0)
1557                         lyx::dispatch(FuncRequest(LFUN_UP_SELECT));
1558                 // This is to allow jumping over large insets
1559                 if (cur.top() == old) {
1560                         if (cmd.y() >= wh)
1561                                 lyx::dispatch(FuncRequest(LFUN_DOWN_SELECT));
1562                         else if (cmd.y() < 0)
1563                                 lyx::dispatch(FuncRequest(LFUN_UP_SELECT));
1564                 }
1565                 // We continue with our existing selection or start a new one, so don't
1566                 // reset the anchor.
1567                 bvcur.setCursor(cur);
1568                 bvcur.setSelection(true);
1569                 if (cur.top() == old) {
1570                         // We didn't move one iota, so no need to update the screen.
1571                         cur.screenUpdateFlags(Update::SinglePar | Update::FitCursor);
1572                         //cur.noScreenUpdate();
1573                         return;
1574                 }
1575                 break;
1576         }
1577
1578         case LFUN_MOUSE_RELEASE:
1579                 switch (cmd.button()) {
1580                 case mouse_button::button1:
1581                         // Cursor was set at LFUN_MOUSE_PRESS or LFUN_MOUSE_MOTION time.
1582                         // If there is a new selection, update persistent selection;
1583                         // otherwise, single click does not clear persistent selection
1584                         // buffer.
1585                         if (cur.selection()) {
1586                                 // Finish selection. If double click,
1587                                 // cur is moved to the end of word by
1588                                 // selectWord but bvcur is current
1589                                 // mouse position.
1590                                 cur.bv().cursor().setSelection();
1591                                 // We might have removed an empty but drawn selection
1592                                 // (probably a margin)
1593                                 cur.screenUpdateFlags(Update::SinglePar | Update::FitCursor);
1594                         } else
1595                                 cur.noScreenUpdate();
1596                         // FIXME: We could try to handle drag and drop of selection here.
1597                         return;
1598
1599                 case mouse_button::button2:
1600                         // Middle mouse pasting is handled at mouse press time,
1601                         // see LFUN_MOUSE_PRESS.
1602                         cur.noScreenUpdate();
1603                         return;
1604
1605                 case mouse_button::button3:
1606                         // Cursor was set at LFUN_MOUSE_PRESS time.
1607                         // FIXME: If there is a selection we could try to handle a special
1608                         // drag & drop context menu.
1609                         cur.noScreenUpdate();
1610                         return;
1611
1612                 case mouse_button::none:
1613                 case mouse_button::button4:
1614                 case mouse_button::button5:
1615                         break;
1616                 } // switch (cmd.button())
1617
1618                 break;
1619
1620         case LFUN_SELF_INSERT: {
1621                 if (cmd.argument().empty())
1622                         break;
1623
1624                 // Automatically delete the currently selected
1625                 // text and replace it with what is being
1626                 // typed in now. Depends on lyxrc settings
1627                 // "auto_region_delete", which defaults to
1628                 // true (on).
1629
1630                 if (lyxrc.auto_region_delete && cur.selection())
1631                         cutSelection(cur, false, false);
1632
1633                 cur.clearSelection();
1634
1635                 docstring::const_iterator cit = cmd.argument().begin();
1636                 docstring::const_iterator const end = cmd.argument().end();
1637                 for (; cit != end; ++cit)
1638                         bv->translateAndInsert(*cit, this, cur);
1639
1640                 cur.resetAnchor();
1641                 moveCursor(cur, false);
1642                 cur.markNewWordPosition();
1643                 bv->bookmarkEditPosition();
1644                 break;
1645         }
1646
1647         case LFUN_HYPERLINK_INSERT: {
1648                 InsetCommandParams p(HYPERLINK_CODE);
1649                 docstring content;
1650                 if (cur.selection()) {
1651                         content = cur.selectionAsString(false);
1652                         cutSelection(cur, true, false);
1653                 }
1654                 p["target"] = (cmd.argument().empty()) ?
1655                         content : cmd.argument();
1656                 string const data = InsetCommand::params2string(p);
1657                 if (p["target"].empty()) {
1658                         bv->showDialog("href", data);
1659                 } else {
1660                         FuncRequest fr(LFUN_INSET_INSERT, data);
1661                         dispatch(cur, fr);
1662                 }
1663                 break;
1664         }
1665
1666         case LFUN_LABEL_INSERT: {
1667                 InsetCommandParams p(LABEL_CODE);
1668                 // Try to generate a valid label
1669                 p["name"] = (cmd.argument().empty()) ?
1670                         cur.getPossibleLabel() :
1671                         cmd.argument();
1672                 string const data = InsetCommand::params2string(p);
1673
1674                 if (cmd.argument().empty()) {
1675                         bv->showDialog("label", data);
1676                 } else {
1677                         FuncRequest fr(LFUN_INSET_INSERT, data);
1678                         dispatch(cur, fr);
1679                 }
1680                 break;
1681         }
1682
1683         case LFUN_INFO_INSERT: {
1684                 Inset * inset;
1685                 if (cmd.argument().empty() && cur.selection()) {
1686                         // if command argument is empty use current selection as parameter.
1687                         docstring ds = cur.selectionAsString(false);
1688                         cutSelection(cur, true, false);
1689                         FuncRequest cmd0(cmd, ds);
1690                         inset = createInset(cur.buffer(), cmd0);
1691                 } else {
1692                         inset = createInset(cur.buffer(), cmd);
1693                 }
1694                 if (!inset)
1695                         break;
1696                 cur.recordUndo();
1697                 insertInset(cur, inset);
1698                 cur.posForward();
1699                 break;
1700         }
1701         case LFUN_CAPTION_INSERT:
1702         case LFUN_FOOTNOTE_INSERT:
1703         case LFUN_NOTE_INSERT:
1704         case LFUN_BOX_INSERT:
1705         case LFUN_BRANCH_INSERT:
1706         case LFUN_PHANTOM_INSERT:
1707         case LFUN_ERT_INSERT:
1708         case LFUN_LISTING_INSERT:
1709         case LFUN_MARGINALNOTE_INSERT:
1710         case LFUN_ARGUMENT_INSERT:
1711         case LFUN_INDEX_INSERT:
1712         case LFUN_PREVIEW_INSERT:
1713         case LFUN_SCRIPT_INSERT:
1714         case LFUN_IPA_INSERT:
1715                 // Open the inset, and move the current selection
1716                 // inside it.
1717                 doInsertInset(cur, this, cmd, true, true);
1718                 cur.posForward();
1719                 // Some insets are numbered, others are shown in the outline pane so
1720                 // let's update the labels and the toc backend.
1721                 cur.forceBufferUpdate();
1722                 break;
1723
1724         case LFUN_FLEX_INSERT: {
1725                 // Open the inset, and move the current selection
1726                 // inside it.
1727                 bool const sel = cur.selection();
1728                 doInsertInset(cur, this, cmd, true, true);
1729                 // Insert auto-insert arguments
1730                 bool autoargs = false;
1731                 Layout::LaTeXArgMap args = cur.inset().getLayout().latexargs();
1732                 Layout::LaTeXArgMap::const_iterator lait = args.begin();
1733                 Layout::LaTeXArgMap::const_iterator const laend = args.end();
1734                 for (; lait != laend; ++lait) {
1735                         Layout::latexarg arg = (*lait).second;
1736                         if (arg.autoinsert) {
1737                                 // The cursor might have been invalidated by the replaceSelection.
1738                                 cur.buffer()->changed(true);
1739                                 FuncRequest cmd(LFUN_ARGUMENT_INSERT, (*lait).first);
1740                                 lyx::dispatch(cmd);
1741                                 autoargs = true;
1742                         }
1743                 }
1744                 if (!autoargs) {
1745                         if (sel)
1746                                 cur.leaveInset(cur.inset());
1747                         cur.posForward();
1748                 }
1749                 // Some insets are numbered, others are shown in the outline pane so
1750                 // let's update the labels and the toc backend.
1751                 cur.forceBufferUpdate();
1752                 break;
1753         }
1754
1755         case LFUN_TABULAR_INSERT:
1756                 // if there were no arguments, just open the dialog
1757                 if (doInsertInset(cur, this, cmd, false, true))
1758                         cur.posForward();
1759                 else
1760                         bv->showDialog("tabularcreate");
1761
1762                 break;
1763
1764         case LFUN_FLOAT_INSERT:
1765         case LFUN_FLOAT_WIDE_INSERT:
1766         case LFUN_WRAP_INSERT: {
1767                 // will some content be moved into the inset?
1768                 bool const content = cur.selection();
1769                 // does the content consist of multiple paragraphs?
1770                 bool const singlepar = (cur.selBegin().pit() == cur.selEnd().pit());
1771
1772                 doInsertInset(cur, this, cmd, true, true);
1773                 cur.posForward();
1774
1775                 // If some single-par content is moved into the inset,
1776                 // doInsertInset puts the cursor outside the inset.
1777                 // To insert the caption we put it back into the inset.
1778                 // FIXME cleanup doInsertInset to avoid such dances!
1779                 if (content && singlepar)
1780                         cur.backwardPos();
1781
1782                 ParagraphList & pars = cur.text()->paragraphs();
1783
1784                 DocumentClass const & tclass = bv->buffer().params().documentClass();
1785
1786                 // add a separate paragraph for the caption inset
1787                 pars.push_back(Paragraph());
1788                 pars.back().setInsetOwner(&cur.text()->inset());
1789                 pars.back().setPlainOrDefaultLayout(tclass);
1790                 int cap_pit = pars.size() - 1;
1791
1792                 // if an empty inset was created, we create an additional empty
1793                 // paragraph at the bottom so that the user can choose where to put
1794                 // the graphics (or table).
1795                 if (!content) {
1796                         pars.push_back(Paragraph());
1797                         pars.back().setInsetOwner(&cur.text()->inset());
1798                         pars.back().setPlainOrDefaultLayout(tclass);
1799                 }
1800
1801                 // reposition the cursor to the caption
1802                 cur.pit() = cap_pit;
1803                 cur.pos() = 0;
1804                 // FIXME: This Text/Cursor dispatch handling is a mess!
1805                 // We cannot use Cursor::dispatch here it needs access to up to
1806                 // date metrics.
1807                 FuncRequest cmd_caption(LFUN_CAPTION_INSERT);
1808                 doInsertInset(cur, cur.text(), cmd_caption, true, false);
1809                 cur.forceBufferUpdate();
1810                 cur.screenUpdateFlags(Update::Force);
1811                 // FIXME: When leaving the Float (or Wrap) inset we should
1812                 // delete any empty paragraph left above or below the
1813                 // caption.
1814                 break;
1815         }
1816
1817         case LFUN_NOMENCL_INSERT: {
1818                 InsetCommandParams p(NOMENCL_CODE);
1819                 if (cmd.argument().empty())
1820                         p["symbol"] = bv->cursor().innerText()->getStringToIndex(bv->cursor());
1821                 else
1822                         p["symbol"] = cmd.argument();
1823                 string const data = InsetCommand::params2string(p);
1824                 bv->showDialog("nomenclature", data);
1825                 break;
1826         }
1827
1828         case LFUN_INDEX_PRINT: {
1829                 InsetCommandParams p(INDEX_PRINT_CODE);
1830                 if (cmd.argument().empty())
1831                         p["type"] = from_ascii("idx");
1832                 else
1833                         p["type"] = cmd.argument();
1834                 string const data = InsetCommand::params2string(p);
1835                 FuncRequest fr(LFUN_INSET_INSERT, data);
1836                 dispatch(cur, fr);
1837                 break;
1838         }
1839
1840         case LFUN_NOMENCL_PRINT:
1841         case LFUN_NEWPAGE_INSERT:
1842                 // do nothing fancy
1843                 doInsertInset(cur, this, cmd, false, false);
1844                 cur.posForward();
1845                 break;
1846
1847         case LFUN_DEPTH_DECREMENT:
1848                 changeDepth(cur, DEC_DEPTH);
1849                 break;
1850
1851         case LFUN_DEPTH_INCREMENT:
1852                 changeDepth(cur, INC_DEPTH);
1853                 break;
1854
1855         case LFUN_MATH_DISPLAY:
1856                 mathDispatch(cur, cmd, true);
1857                 break;
1858
1859         case LFUN_REGEXP_MODE:
1860                 regexpDispatch(cur, cmd);
1861                 break;
1862
1863         case LFUN_MATH_MODE:
1864                 if (cmd.argument() == "on")
1865                         // don't pass "on" as argument
1866                         // (it would appear literally in the first cell)
1867                         mathDispatch(cur, FuncRequest(LFUN_MATH_MODE), false);
1868                 else
1869                         mathDispatch(cur, cmd, false);
1870                 break;
1871
1872         case LFUN_MATH_MACRO:
1873                 if (cmd.argument().empty())
1874                         cur.errorMessage(from_utf8(N_("Missing argument")));
1875                 else {
1876                         cur.recordUndo();
1877                         string s = to_utf8(cmd.argument());
1878                         string const s1 = token(s, ' ', 1);
1879                         int const nargs = s1.empty() ? 0 : convert<int>(s1);
1880                         string const s2 = token(s, ' ', 2);
1881                         MacroType type = MacroTypeNewcommand;
1882                         if (s2 == "def")
1883                                 type = MacroTypeDef;
1884                         MathMacroTemplate * inset = new MathMacroTemplate(cur.buffer(),
1885                                 from_utf8(token(s, ' ', 0)), nargs, false, type);
1886                         inset->setBuffer(bv->buffer());
1887                         insertInset(cur, inset);
1888
1889                         // enter macro inset and select the name
1890                         cur.push(*inset);
1891                         cur.top().pos() = cur.top().lastpos();
1892                         cur.resetAnchor();
1893                         cur.setSelection(true);
1894                         cur.top().pos() = 0;
1895                 }
1896                 break;
1897
1898         // passthrough hat and underscore outside mathed:
1899         case LFUN_MATH_SUBSCRIPT:
1900                 mathDispatch(cur, FuncRequest(LFUN_SELF_INSERT, "_"), false);
1901                 break;
1902         case LFUN_MATH_SUPERSCRIPT:
1903                 mathDispatch(cur, FuncRequest(LFUN_SELF_INSERT, "^"), false);
1904                 break;
1905
1906         case LFUN_MATH_INSERT:
1907         case LFUN_MATH_AMS_MATRIX:
1908         case LFUN_MATH_MATRIX:
1909         case LFUN_MATH_DELIM:
1910         case LFUN_MATH_BIGDELIM: {
1911                 cur.recordUndo();
1912                 cap::replaceSelection(cur);
1913                 cur.insert(new InsetMathHull(cur.buffer(), hullSimple));
1914                 checkAndActivateInset(cur, true);
1915                 LASSERT(cur.inMathed(), /**/);
1916                 cur.dispatch(cmd);
1917                 break;
1918         }
1919
1920         case LFUN_FONT_EMPH: {
1921                 Font font(ignore_font, ignore_language);
1922                 font.fontInfo().setEmph(FONT_TOGGLE);
1923                 toggleAndShow(cur, this, font);
1924                 break;
1925         }
1926
1927         case LFUN_FONT_ITAL: {
1928                 Font font(ignore_font, ignore_language);
1929                 font.fontInfo().setShape(ITALIC_SHAPE);
1930                 toggleAndShow(cur, this, font);
1931                 break;
1932         }
1933
1934         case LFUN_FONT_BOLD:
1935         case LFUN_FONT_BOLDSYMBOL: {
1936                 Font font(ignore_font, ignore_language);
1937                 font.fontInfo().setSeries(BOLD_SERIES);
1938                 toggleAndShow(cur, this, font);
1939                 break;
1940         }
1941
1942         case LFUN_FONT_NOUN: {
1943                 Font font(ignore_font, ignore_language);
1944                 font.fontInfo().setNoun(FONT_TOGGLE);
1945                 toggleAndShow(cur, this, font);
1946                 break;
1947         }
1948
1949         case LFUN_FONT_TYPEWRITER: {
1950                 Font font(ignore_font, ignore_language);
1951                 font.fontInfo().setFamily(TYPEWRITER_FAMILY); // no good
1952                 toggleAndShow(cur, this, font);
1953                 break;
1954         }
1955
1956         case LFUN_FONT_SANS: {
1957                 Font font(ignore_font, ignore_language);
1958                 font.fontInfo().setFamily(SANS_FAMILY);
1959                 toggleAndShow(cur, this, font);
1960                 break;
1961         }
1962
1963         case LFUN_FONT_ROMAN: {
1964                 Font font(ignore_font, ignore_language);
1965                 font.fontInfo().setFamily(ROMAN_FAMILY);
1966                 toggleAndShow(cur, this, font);
1967                 break;
1968         }
1969
1970         case LFUN_FONT_DEFAULT: {
1971                 Font font(inherit_font, ignore_language);
1972                 toggleAndShow(cur, this, font);
1973                 break;
1974         }
1975
1976         case LFUN_FONT_STRIKEOUT: {
1977                 Font font(ignore_font, ignore_language);
1978                 font.fontInfo().setStrikeout(FONT_TOGGLE);
1979                 toggleAndShow(cur, this, font);
1980                 break;
1981         }
1982
1983         case LFUN_FONT_UULINE: {
1984                 Font font(ignore_font, ignore_language);
1985                 font.fontInfo().setUuline(FONT_TOGGLE);
1986                 toggleAndShow(cur, this, font);
1987                 break;
1988         }
1989
1990         case LFUN_FONT_UWAVE: {
1991                 Font font(ignore_font, ignore_language);
1992                 font.fontInfo().setUwave(FONT_TOGGLE);
1993                 toggleAndShow(cur, this, font);
1994                 break;
1995         }
1996
1997         case LFUN_FONT_UNDERLINE: {
1998                 Font font(ignore_font, ignore_language);
1999                 font.fontInfo().setUnderbar(FONT_TOGGLE);
2000                 toggleAndShow(cur, this, font);
2001                 break;
2002         }
2003
2004         case LFUN_FONT_SIZE: {
2005                 Font font(ignore_font, ignore_language);
2006                 setLyXSize(to_utf8(cmd.argument()), font.fontInfo());
2007                 toggleAndShow(cur, this, font);
2008                 break;
2009         }
2010
2011         case LFUN_LANGUAGE: {
2012                 string const lang_arg = cmd.getArg(0);
2013                 bool const reset = (lang_arg.empty() || lang_arg == "reset");
2014                 Language const * lang =
2015                         reset ? reset_language
2016                               : languages.getLanguage(lang_arg);
2017                 // we allow reset_language, which is 0, but only if it
2018                 // was requested via empty or "reset" arg.
2019                 if (!lang && !reset)
2020                         break;
2021                 bool const toggle = (cmd.getArg(1) != "set");
2022                 selectWordWhenUnderCursor(cur, WHOLE_WORD_STRICT);
2023                 Font font(ignore_font, lang);
2024                 toggleAndShow(cur, this, font, toggle);
2025                 break;
2026         }
2027
2028         case LFUN_TEXTSTYLE_APPLY:
2029                 toggleAndShow(cur, this, freefont, toggleall);
2030                 cur.message(_("Character set"));
2031                 break;
2032
2033         // Set the freefont using the contents of \param data dispatched from
2034         // the frontends and apply it at the current cursor location.
2035         case LFUN_TEXTSTYLE_UPDATE: {
2036                 Font font;
2037                 bool toggle;
2038                 if (font.fromString(to_utf8(cmd.argument()), toggle)) {
2039                         freefont = font;
2040                         toggleall = toggle;
2041                         toggleAndShow(cur, this, freefont, toggleall);
2042                         cur.message(_("Character set"));
2043                 } else {
2044                         lyxerr << "Argument not ok";
2045                 }
2046                 break;
2047         }
2048
2049         case LFUN_FINISHED_LEFT:
2050                 LYXERR(Debug::DEBUG, "handle LFUN_FINISHED_LEFT:\n" << cur);
2051                 // We're leaving an inset, going left. If the inset is LTR, we're
2052                 // leaving from the front, so we should not move (remain at --- but
2053                 // not in --- the inset). If the inset is RTL, move left, without
2054                 // entering the inset itself; i.e., move to after the inset.
2055                 if (cur.paragraph().getFontSettings(
2056                                 cur.bv().buffer().params(), cur.pos()).isRightToLeft())
2057                         cursorVisLeft(cur, true);
2058                 break;
2059
2060         case LFUN_FINISHED_RIGHT:
2061                 LYXERR(Debug::DEBUG, "handle LFUN_FINISHED_RIGHT:\n" << cur);
2062                 // We're leaving an inset, going right. If the inset is RTL, we're
2063                 // leaving from the front, so we should not move (remain at --- but
2064                 // not in --- the inset). If the inset is LTR, move right, without
2065                 // entering the inset itself; i.e., move to after the inset.
2066                 if (!cur.paragraph().getFontSettings(
2067                                 cur.bv().buffer().params(), cur.pos()).isRightToLeft())
2068                         cursorVisRight(cur, true);
2069                 break;
2070
2071         case LFUN_FINISHED_BACKWARD:
2072                 LYXERR(Debug::DEBUG, "handle LFUN_FINISHED_BACKWARD:\n" << cur);
2073                 break;
2074
2075         case LFUN_FINISHED_FORWARD:
2076                 LYXERR(Debug::DEBUG, "handle LFUN_FINISHED_FORWARD:\n" << cur);
2077                 ++cur.pos();
2078                 cur.setCurrentFont();
2079                 break;
2080
2081         case LFUN_LAYOUT_PARAGRAPH: {
2082                 string data;
2083                 params2string(cur.paragraph(), data);
2084                 data = "show\n" + data;
2085                 bv->showDialog("paragraph", data);
2086                 break;
2087         }
2088
2089         case LFUN_PARAGRAPH_UPDATE: {
2090                 string data;
2091                 params2string(cur.paragraph(), data);
2092
2093                 // Will the paragraph accept changes from the dialog?
2094                 bool const accept =
2095                         cur.inset().allowParagraphCustomization(cur.idx());
2096
2097                 data = "update " + convert<string>(accept) + '\n' + data;
2098                 bv->updateDialog("paragraph", data);
2099                 break;
2100         }
2101
2102         case LFUN_ACCENT_UMLAUT:
2103         case LFUN_ACCENT_CIRCUMFLEX:
2104         case LFUN_ACCENT_GRAVE:
2105         case LFUN_ACCENT_ACUTE:
2106         case LFUN_ACCENT_TILDE:
2107         case LFUN_ACCENT_CEDILLA:
2108         case LFUN_ACCENT_MACRON:
2109         case LFUN_ACCENT_DOT:
2110         case LFUN_ACCENT_UNDERDOT:
2111         case LFUN_ACCENT_UNDERBAR:
2112         case LFUN_ACCENT_CARON:
2113         case LFUN_ACCENT_BREVE:
2114         case LFUN_ACCENT_TIE:
2115         case LFUN_ACCENT_HUNGARIAN_UMLAUT:
2116         case LFUN_ACCENT_CIRCLE:
2117         case LFUN_ACCENT_OGONEK:
2118                 theApp()->handleKeyFunc(cmd.action());
2119                 if (!cmd.argument().empty())
2120                         // FIXME: Are all these characters encoded in one byte in utf8?
2121                         bv->translateAndInsert(cmd.argument()[0], this, cur);
2122                 cur.screenUpdateFlags(Update::FitCursor);
2123                 break;
2124
2125         case LFUN_FLOAT_LIST_INSERT: {
2126                 DocumentClass const & tclass = bv->buffer().params().documentClass();
2127                 if (tclass.floats().typeExist(to_utf8(cmd.argument()))) {
2128                         cur.recordUndo();
2129                         if (cur.selection())
2130                                 cutSelection(cur, true, false);
2131                         breakParagraph(cur);
2132
2133                         if (cur.lastpos() != 0) {
2134                                 cursorBackward(cur);
2135                                 breakParagraph(cur);
2136                         }
2137
2138                         docstring const laystr = cur.inset().usePlainLayout() ?
2139                                 tclass.plainLayoutName() :
2140                                 tclass.defaultLayoutName();
2141                         setLayout(cur, laystr);
2142                         ParagraphParameters p;
2143                         // FIXME If this call were replaced with one to clearParagraphParams(),
2144                         // then we could get rid of this method altogether.
2145                         setParagraphs(cur, p);
2146                         // FIXME This should be simplified when InsetFloatList takes a
2147                         // Buffer in its constructor.
2148                         InsetFloatList * ifl = new InsetFloatList(cur.buffer(), to_utf8(cmd.argument()));
2149                         ifl->setBuffer(bv->buffer());
2150                         insertInset(cur, ifl);
2151                         cur.posForward();
2152                 } else {
2153                         lyxerr << "Non-existent float type: "
2154                                << to_utf8(cmd.argument()) << endl;
2155                 }
2156                 break;
2157         }
2158
2159         case LFUN_CHANGE_ACCEPT: {
2160                 acceptOrRejectChanges(cur, ACCEPT);
2161                 break;
2162         }
2163
2164         case LFUN_CHANGE_REJECT: {
2165                 acceptOrRejectChanges(cur, REJECT);
2166                 break;
2167         }
2168
2169         case LFUN_THESAURUS_ENTRY: {
2170                 docstring arg = cmd.argument();
2171                 if (arg.empty()) {
2172                         arg = cur.selectionAsString(false);
2173                         // FIXME
2174                         if (arg.size() > 100 || arg.empty()) {
2175                                 // Get word or selection
2176                                 selectWordWhenUnderCursor(cur, WHOLE_WORD);
2177                                 arg = cur.selectionAsString(false);
2178                                 arg += " lang=" + from_ascii(cur.getFont().language()->lang());
2179                         }
2180                 }
2181                 bv->showDialog("thesaurus", to_utf8(arg));
2182                 break;
2183         }
2184
2185         case LFUN_SPELLING_ADD: {
2186                 docstring word = from_utf8(cmd.getArg(0));
2187                 Language * lang;
2188                 if (word.empty()) {
2189                         word = cur.selectionAsString(false);
2190                         // FIXME
2191                         if (word.size() > 100 || word.empty()) {
2192                                 // Get word or selection
2193                                 selectWordWhenUnderCursor(cur, WHOLE_WORD);
2194                                 word = cur.selectionAsString(false);
2195                         }
2196                         lang = const_cast<Language *>(cur.getFont().language());
2197                 } else
2198                         lang = const_cast<Language *>(languages.getLanguage(cmd.getArg(1)));
2199                 WordLangTuple wl(word, lang);
2200                 theSpellChecker()->insert(wl);
2201                 break;
2202         }
2203
2204         case LFUN_SPELLING_IGNORE: {
2205                 docstring word = from_utf8(cmd.getArg(0));
2206                 Language * lang;
2207                 if (word.empty()) {
2208                         word = cur.selectionAsString(false);
2209                         // FIXME
2210                         if (word.size() > 100 || word.empty()) {
2211                                 // Get word or selection
2212                                 selectWordWhenUnderCursor(cur, WHOLE_WORD);
2213                                 word = cur.selectionAsString(false);
2214                         }
2215                         lang = const_cast<Language *>(cur.getFont().language());
2216                 } else
2217                         lang = const_cast<Language *>(languages.getLanguage(cmd.getArg(1)));
2218                 WordLangTuple wl(word, lang);
2219                 theSpellChecker()->accept(wl);
2220                 break;
2221         }
2222
2223         case LFUN_SPELLING_REMOVE: {
2224                 docstring word = from_utf8(cmd.getArg(0));
2225                 Language * lang;
2226                 if (word.empty()) {
2227                         word = cur.selectionAsString(false);
2228                         // FIXME
2229                         if (word.size() > 100 || word.empty()) {
2230                                 // Get word or selection
2231                                 selectWordWhenUnderCursor(cur, WHOLE_WORD);
2232                                 word = cur.selectionAsString(false);
2233                         }
2234                         lang = const_cast<Language *>(cur.getFont().language());
2235                 } else
2236                         lang = const_cast<Language *>(languages.getLanguage(cmd.getArg(1)));
2237                 WordLangTuple wl(word, lang);
2238                 theSpellChecker()->remove(wl);
2239                 break;
2240         }
2241
2242         case LFUN_PARAGRAPH_PARAMS_APPLY: {
2243                 // Given data, an encoding of the ParagraphParameters
2244                 // generated in the Paragraph dialog, this function sets
2245                 // the current paragraph, or currently selected paragraphs,
2246                 // appropriately.
2247                 // NOTE: This function overrides all existing settings.
2248                 setParagraphs(cur, cmd.argument());
2249                 cur.message(_("Paragraph layout set"));
2250                 break;
2251         }
2252
2253         case LFUN_PARAGRAPH_PARAMS: {
2254                 // Given data, an encoding of the ParagraphParameters as we'd
2255                 // find them in a LyX file, this function modifies the current paragraph,
2256                 // or currently selected paragraphs.
2257                 // NOTE: This function only modifies, and does not override, existing
2258                 // settings.
2259                 setParagraphs(cur, cmd.argument(), true);
2260                 cur.message(_("Paragraph layout set"));
2261                 break;
2262         }
2263
2264         case LFUN_ESCAPE:
2265                 if (cur.selection()) {
2266                         cur.setSelection(false);
2267                 } else {
2268                         cur.undispatched();
2269                         // This used to be LFUN_FINISHED_RIGHT, I think FORWARD is more
2270                         // correct, but I'm not 100% sure -- dov, 071019
2271                         cmd = FuncRequest(LFUN_FINISHED_FORWARD);
2272                 }
2273                 break;
2274
2275         case LFUN_OUTLINE_UP:
2276                 outline(OutlineUp, cur);
2277                 setCursor(cur, cur.pit(), 0);
2278                 cur.forceBufferUpdate();
2279                 needsUpdate = true;
2280                 break;
2281
2282         case LFUN_OUTLINE_DOWN:
2283                 outline(OutlineDown, cur);
2284                 setCursor(cur, cur.pit(), 0);
2285                 cur.forceBufferUpdate();
2286                 needsUpdate = true;
2287                 break;
2288
2289         case LFUN_OUTLINE_IN:
2290                 outline(OutlineIn, cur);
2291                 cur.forceBufferUpdate();
2292                 needsUpdate = true;
2293                 break;
2294
2295         case LFUN_OUTLINE_OUT:
2296                 outline(OutlineOut, cur);
2297                 cur.forceBufferUpdate();
2298                 needsUpdate = true;
2299                 break;
2300
2301         default:
2302                 LYXERR(Debug::ACTION, "Command " << cmd << " not DISPATCHED by Text");
2303                 cur.undispatched();
2304                 break;
2305         }
2306
2307         needsUpdate |= (cur.pos() != cur.lastpos()) && cur.selection();
2308
2309         if (lyxrc.spellcheck_continuously && !needsUpdate) {
2310                 // Check for misspelled text
2311                 // The redraw is useful because of the painting of
2312                 // misspelled markers depends on the cursor position.
2313                 // Trigger a redraw for cursor moves inside misspelled text.
2314                 if (!cur.inTexted()) {
2315                         // move from regular text to math
2316                         needsUpdate = last_misspelled;
2317                 } else if (oldTopSlice != cur.top() || oldBoundary != cur.boundary()) {
2318                         // move inside regular text
2319                         needsUpdate = last_misspelled
2320                                 || cur.paragraph().isMisspelled(cur.pos(), true);
2321                 }
2322         }
2323
2324         // FIXME: The cursor flag is reset two lines below
2325         // so we need to check here if some of the LFUN did touch that.
2326         // for now only Text::erase() and Text::backspace() do that.
2327         // The plan is to verify all the LFUNs and then to remove this
2328         // singleParUpdate boolean altogether.
2329         if (cur.result().screenUpdate() & Update::Force) {
2330                 singleParUpdate = false;
2331                 needsUpdate = true;
2332         }
2333
2334         // FIXME: the following code should go in favor of fine grained
2335         // update flag treatment.
2336         if (singleParUpdate) {
2337                 // Inserting characters does not change par height in general. So, try
2338                 // to update _only_ this paragraph. BufferView will detect if a full
2339                 // metrics update is needed anyway.
2340                 cur.screenUpdateFlags(Update::SinglePar | Update::FitCursor);
2341                 return;
2342         }
2343         if (!needsUpdate
2344             && &oldTopSlice.inset() == &cur.inset()
2345             && oldTopSlice.idx() == cur.idx()
2346             && !oldSelection // oldSelection is a backup of cur.selection() at the beginning of the function.
2347             && !cur.selection())
2348                 // FIXME: it would be better if we could just do this
2349                 //
2350                 //if (cur.result().update() != Update::FitCursor)
2351                 //      cur.noScreenUpdate();
2352                 //
2353                 // But some LFUNs do not set Update::FitCursor when needed, so we
2354                 // do it for all. This is not very harmfull as FitCursor will provoke
2355                 // a full redraw only if needed but still, a proper review of all LFUN
2356                 // should be done and this needsUpdate boolean can then be removed.
2357                 cur.screenUpdateFlags(Update::FitCursor);
2358         else
2359                 cur.screenUpdateFlags(Update::Force | Update::FitCursor);
2360 }
2361
2362
2363 bool Text::getStatus(Cursor & cur, FuncRequest const & cmd,
2364                         FuncStatus & flag) const
2365 {
2366         LASSERT(cur.text() == this, /**/);
2367
2368         FontInfo const & fontinfo = cur.real_current_font.fontInfo();
2369         bool enable = true;
2370         bool allow_in_passthru = false;
2371         InsetCode code = NO_CODE;
2372
2373         switch (cmd.action()) {
2374
2375         case LFUN_DEPTH_DECREMENT:
2376                 enable = changeDepthAllowed(cur, DEC_DEPTH);
2377                 break;
2378
2379         case LFUN_DEPTH_INCREMENT:
2380                 enable = changeDepthAllowed(cur, INC_DEPTH);
2381                 break;
2382
2383         case LFUN_APPENDIX:
2384                 // FIXME We really should not allow this to be put, e.g.,
2385                 // in a footnote, or in ERT. But it would make sense in a
2386                 // branch, so I'm not sure what to do.
2387                 flag.setOnOff(cur.paragraph().params().startOfAppendix());
2388                 break;
2389
2390         case LFUN_DIALOG_SHOW_NEW_INSET:
2391                 if (cmd.argument() == "bibitem")
2392                         code = BIBITEM_CODE;
2393                 else if (cmd.argument() == "bibtex") {
2394                         code = BIBTEX_CODE;
2395                         // not allowed in description items
2396                         enable = !inDescriptionItem(cur);
2397                 }
2398                 else if (cmd.argument() == "box")
2399                         code = BOX_CODE;
2400                 else if (cmd.argument() == "branch")
2401                         code = BRANCH_CODE;
2402                 else if (cmd.argument() == "citation")
2403                         code = CITE_CODE;
2404                 else if (cmd.argument() == "ert")
2405                         code = ERT_CODE;
2406                 else if (cmd.argument() == "external")
2407                         code = EXTERNAL_CODE;
2408                 else if (cmd.argument() == "float")
2409                         code = FLOAT_CODE;
2410                 else if (cmd.argument() == "graphics")
2411                         code = GRAPHICS_CODE;
2412                 else if (cmd.argument() == "href")
2413                         code = HYPERLINK_CODE;
2414                 else if (cmd.argument() == "include")
2415                         code = INCLUDE_CODE;
2416                 else if (cmd.argument() == "index")
2417                         code = INDEX_CODE;
2418                 else if (cmd.argument() == "index_print")
2419                         code = INDEX_PRINT_CODE;
2420                 else if (cmd.argument() == "nomenclature")
2421                         code = NOMENCL_CODE;
2422                 else if (cmd.argument() == "nomencl_print")
2423                         code = NOMENCL_PRINT_CODE;
2424                 else if (cmd.argument() == "label")
2425                         code = LABEL_CODE;
2426                 else if (cmd.argument() == "line")
2427                         code = LINE_CODE;
2428                 else if (cmd.argument() == "note")
2429                         code = NOTE_CODE;
2430                 else if (cmd.argument() == "phantom")
2431                         code = PHANTOM_CODE;
2432                 else if (cmd.argument() == "ref")
2433                         code = REF_CODE;
2434                 else if (cmd.argument() == "space")
2435                         code = SPACE_CODE;
2436                 else if (cmd.argument() == "toc")
2437                         code = TOC_CODE;
2438                 else if (cmd.argument() == "vspace")
2439                         code = VSPACE_CODE;
2440                 else if (cmd.argument() == "wrap")
2441                         code = WRAP_CODE;
2442                 else if (cmd.argument() == "listings")
2443                         code = LISTINGS_CODE;
2444                 break;
2445
2446         case LFUN_ERT_INSERT:
2447                 code = ERT_CODE;
2448                 break;
2449         case LFUN_LISTING_INSERT:
2450                 code = LISTINGS_CODE;
2451                 // not allowed in description items
2452                 enable = !inDescriptionItem(cur);
2453                 break;
2454         case LFUN_FOOTNOTE_INSERT:
2455                 code = FOOT_CODE;
2456                 break;
2457         case LFUN_TABULAR_INSERT:
2458                 code = TABULAR_CODE;
2459                 break;
2460         case LFUN_MARGINALNOTE_INSERT:
2461                 code = MARGIN_CODE;
2462                 break;
2463         case LFUN_FLOAT_INSERT:
2464         case LFUN_FLOAT_WIDE_INSERT:
2465                 // FIXME: If there is a selection, we should check whether there
2466                 // are floats in the selection, but this has performance issues, see
2467                 // LFUN_CHANGE_ACCEPT/REJECT.
2468                 code = FLOAT_CODE;
2469                 if (inDescriptionItem(cur))
2470                         // not allowed in description items
2471                         enable = false;
2472                 else {
2473                         InsetCode const inset_code = cur.inset().lyxCode();
2474
2475                         // algorithm floats cannot be put in another float
2476                         if (to_utf8(cmd.argument()) == "algorithm") {
2477                                 enable = inset_code != WRAP_CODE && inset_code != FLOAT_CODE;
2478                                 break;
2479                         }
2480
2481                         // for figures and tables: only allow in another
2482                         // float or wrap if it is of the same type and
2483                         // not a subfloat already
2484                         if(cur.inset().lyxCode() == code) {
2485                                 InsetFloat const & ins =
2486                                         static_cast<InsetFloat const &>(cur.inset());
2487                                 enable = ins.params().type == to_utf8(cmd.argument())
2488                                         && !ins.params().subfloat;
2489                         } else if(cur.inset().lyxCode() == WRAP_CODE) {
2490                                 InsetWrap const & ins =
2491                                         static_cast<InsetWrap const &>(cur.inset());
2492                                 enable = ins.params().type == to_utf8(cmd.argument());
2493                         }
2494                 }
2495                 break;
2496         case LFUN_WRAP_INSERT:
2497                 code = WRAP_CODE;
2498                 // not allowed in description items
2499                 enable = !inDescriptionItem(cur);
2500                 break;
2501         case LFUN_FLOAT_LIST_INSERT: {
2502                 code = FLOAT_LIST_CODE;
2503                 // not allowed in description items
2504                 enable = !inDescriptionItem(cur);
2505                 if (enable) {
2506                         FloatList const & floats = cur.buffer()->params().documentClass().floats();
2507                         FloatList::const_iterator cit = floats[to_ascii(cmd.argument())];
2508                         // make sure we know about such floats
2509                         if (cit == floats.end() ||
2510                                         // and that we know how to generate a list of them
2511                             (!cit->second.usesFloatPkg() && cit->second.listCommand().empty())) {
2512                                 flag.setUnknown(true);
2513                                 // probably not necessary, but...
2514                                 enable = false;
2515                         }
2516                 }
2517                 break;
2518         }
2519         case LFUN_CAPTION_INSERT:
2520                 code = CAPTION_CODE;
2521                 // not allowed in description items
2522                 enable = !inDescriptionItem(cur);
2523                 break;
2524         case LFUN_NOTE_INSERT:
2525                 code = NOTE_CODE;
2526                 // in commands (sections etc.) and description items,
2527                 // only Notes are allowed
2528                 enable = (cmd.argument().empty() || cmd.getArg(0) == "Note" ||
2529                           (!cur.paragraph().layout().isCommand()
2530                            && !inDescriptionItem(cur)));
2531                 break;
2532         case LFUN_FLEX_INSERT: {
2533                 code = FLEX_CODE;
2534                 string s = cmd.getArg(0);
2535                 InsetLayout il =
2536                         cur.buffer()->params().documentClass().insetLayout(from_utf8(s));
2537                 if (il.lyxtype() != InsetLayout::CHARSTYLE &&
2538                     il.lyxtype() != InsetLayout::CUSTOM &&
2539                     il.lyxtype() != InsetLayout::ELEMENT &&
2540                     il.lyxtype ()!= InsetLayout::STANDARD)
2541                         enable = false;
2542                 break;
2543                 }
2544         case LFUN_BOX_INSERT:
2545                 code = BOX_CODE;
2546                 break;
2547         case LFUN_BRANCH_INSERT:
2548                 code = BRANCH_CODE;
2549                 if (cur.buffer()->masterBuffer()->params().branchlist().empty()
2550                     && cur.buffer()->params().branchlist().empty())
2551                         enable = false;
2552                 break;
2553         case LFUN_IPA_INSERT:
2554                 code = IPA_CODE;
2555                 break;
2556         case LFUN_PHANTOM_INSERT:
2557                 code = PHANTOM_CODE;
2558                 break;
2559         case LFUN_LABEL_INSERT:
2560                 code = LABEL_CODE;
2561                 break;
2562         case LFUN_INFO_INSERT:
2563                 code = INFO_CODE;
2564                 break;
2565         case LFUN_ARGUMENT_INSERT: {
2566                 code = ARG_CODE;
2567                 allow_in_passthru = true;
2568                 string const arg = cmd.getArg(0);
2569                 if (arg.empty()) {
2570                         enable = false;
2571                         break;
2572                 }
2573                 Layout const & lay = cur.paragraph().layout();
2574                 Layout::LaTeXArgMap args = lay.latexargs();
2575                 Layout::LaTeXArgMap itemargs = lay.itemargs();
2576                 if (!itemargs.empty())
2577                         args.insert(itemargs.begin(), itemargs.end());
2578                 Layout::LaTeXArgMap::const_iterator const lait =
2579                                 args.find(arg);
2580                 if (lait != args.end()) {
2581                         enable = true;
2582                         pit_type pit = cur.pit();
2583                         pit_type lastpit = cur.pit();
2584                         if (lay.isEnvironment() && !prefixIs(arg, "item:")) {
2585                                 // In a sequence of "merged" environment layouts, we only allow
2586                                 // non-item arguments once.
2587                                 lastpit = cur.lastpit();
2588                                 // get the first paragraph in sequence with this layout
2589                                 depth_type const current_depth = cur.paragraph().params().depth();
2590                                 while (true) {
2591                                         if (pit == 0)
2592                                                 break;
2593                                         Paragraph cpar = pars_[pit - 1];
2594                                         if (cpar.layout() == lay && cpar.params().depth() == current_depth)
2595                                                 --pit;
2596                                         else
2597                                                 break;
2598                                 }
2599                         }
2600                         for (; pit <= lastpit; ++pit) {
2601                                 if (pars_[pit].layout() != lay)
2602                                         break;
2603                                 InsetList::const_iterator it = pars_[pit].insetList().begin();
2604                                 InsetList::const_iterator end = pars_[pit].insetList().end();
2605                                 for (; it != end; ++it) {
2606                                         if (it->inset->lyxCode() == ARG_CODE) {
2607                                                 InsetArgument const * ins =
2608                                                         static_cast<InsetArgument const *>(it->inset);
2609                                                 if (ins->name() == arg) {
2610                                                         // we have this already
2611                                                         enable = false;
2612                                                         break;
2613                                                 }
2614                                         }
2615                                 }
2616                         }
2617                 } else
2618                         enable = false;
2619                 break;
2620         }
2621         case LFUN_INDEX_INSERT:
2622                 code = INDEX_CODE;
2623                 break;
2624         case LFUN_INDEX_PRINT:
2625                 code = INDEX_PRINT_CODE;
2626                 // not allowed in description items
2627                 enable = !inDescriptionItem(cur);
2628                 break;
2629         case LFUN_NOMENCL_INSERT:
2630                 if (cur.selIsMultiCell() || cur.selIsMultiLine()) {
2631                         enable = false;
2632                         break;
2633                 }
2634                 code = NOMENCL_CODE;
2635                 break;
2636         case LFUN_NOMENCL_PRINT:
2637                 code = NOMENCL_PRINT_CODE;
2638                 // not allowed in description items
2639                 enable = !inDescriptionItem(cur);
2640                 break;
2641         case LFUN_HYPERLINK_INSERT:
2642                 if (cur.selIsMultiCell() || cur.selIsMultiLine()) {
2643                         enable = false;
2644                         break;
2645                 }
2646                 code = HYPERLINK_CODE;
2647                 break;
2648         case LFUN_IPAMACRO_INSERT: {
2649                 string const arg = cmd.getArg(0);
2650                 if (arg == "deco")
2651                         code = IPADECO_CODE;
2652                 else
2653                         code = IPACHAR_CODE;
2654                 break;
2655         }
2656         case LFUN_QUOTE_INSERT:
2657                 // always allow this, since we will inset a raw quote
2658                 // if an inset is not allowed.
2659                 break;
2660         case LFUN_SPECIALCHAR_INSERT:
2661                 code = SPECIALCHAR_CODE;
2662                 break;
2663         case LFUN_SPACE_INSERT:
2664                 // slight hack: we know this is allowed in math mode
2665                 if (cur.inTexted())
2666                         code = SPACE_CODE;
2667                 break;
2668         case LFUN_PREVIEW_INSERT:
2669                 code = PREVIEW_CODE;
2670                 break;
2671         case LFUN_SCRIPT_INSERT:
2672                 code = SCRIPT_CODE;
2673                 break;
2674
2675         case LFUN_MATH_INSERT:
2676         case LFUN_MATH_AMS_MATRIX:
2677         case LFUN_MATH_MATRIX:
2678         case LFUN_MATH_DELIM:
2679         case LFUN_MATH_BIGDELIM:
2680         case LFUN_MATH_DISPLAY:
2681         case LFUN_MATH_MODE:
2682         case LFUN_MATH_MACRO:
2683         case LFUN_MATH_SUBSCRIPT:
2684         case LFUN_MATH_SUPERSCRIPT:
2685                 code = MATH_HULL_CODE;
2686                 break;
2687
2688         case LFUN_REGEXP_MODE:
2689                 code = MATH_HULL_CODE;
2690                 enable = cur.buffer()->isInternal() && !cur.inRegexped();
2691                 break;
2692
2693         case LFUN_INSET_MODIFY:
2694                 // We need to disable this, because we may get called for a
2695                 // tabular cell via
2696                 // InsetTabular::getStatus() -> InsetText::getStatus()
2697                 // and we don't handle LFUN_INSET_MODIFY.
2698                 enable = false;
2699                 break;
2700
2701         case LFUN_FONT_EMPH:
2702                 flag.setOnOff(fontinfo.emph() == FONT_ON);
2703                 enable = !cur.paragraph().isPassThru();
2704                 break;
2705
2706         case LFUN_FONT_ITAL:
2707                 flag.setOnOff(fontinfo.shape() == ITALIC_SHAPE);
2708                 enable = !cur.paragraph().isPassThru();
2709                 break;
2710
2711         case LFUN_FONT_NOUN:
2712                 flag.setOnOff(fontinfo.noun() == FONT_ON);
2713                 enable = !cur.paragraph().isPassThru();
2714                 break;
2715
2716         case LFUN_FONT_BOLD:
2717         case LFUN_FONT_BOLDSYMBOL:
2718                 flag.setOnOff(fontinfo.series() == BOLD_SERIES);
2719                 enable = !cur.paragraph().isPassThru();
2720                 break;
2721
2722         case LFUN_FONT_SANS:
2723                 flag.setOnOff(fontinfo.family() == SANS_FAMILY);
2724                 enable = !cur.paragraph().isPassThru();
2725                 break;
2726
2727         case LFUN_FONT_ROMAN:
2728                 flag.setOnOff(fontinfo.family() == ROMAN_FAMILY);
2729                 enable = !cur.paragraph().isPassThru();
2730                 break;
2731
2732         case LFUN_FONT_TYPEWRITER:
2733                 flag.setOnOff(fontinfo.family() == TYPEWRITER_FAMILY);
2734                 enable = !cur.paragraph().isPassThru();
2735                 break;
2736
2737         case LFUN_CUT:
2738         case LFUN_COPY:
2739                 enable = cur.selection();
2740                 break;
2741
2742         case LFUN_PASTE: {
2743                 if (cmd.argument().empty()) {
2744                         if (theClipboard().isInternal())
2745                                 enable = cap::numberOfSelections() > 0;
2746                         else
2747                                 enable = !theClipboard().empty();
2748                         break;
2749                 }
2750
2751                 // we have an argument
2752                 string const arg = to_utf8(cmd.argument());
2753                 if (isStrUnsignedInt(arg)) {
2754                         // it's a number and therefore means the internal stack
2755                         unsigned int n = convert<unsigned int>(arg);
2756                         enable = cap::numberOfSelections() > n;
2757                         break;
2758                 }
2759
2760                 // explicit graphics type?
2761                 Clipboard::GraphicsType type = Clipboard::AnyGraphicsType;
2762                 if ((arg == "pdf" && (type = Clipboard::PdfGraphicsType))
2763                           || (arg == "png" && (type = Clipboard::PngGraphicsType))
2764                           || (arg == "jpeg" && (type = Clipboard::JpegGraphicsType))
2765                           || (arg == "linkback" &&  (type = Clipboard::LinkBackGraphicsType))
2766                           || (arg == "emf" &&  (type = Clipboard::EmfGraphicsType))
2767                           || (arg == "wmf" &&  (type = Clipboard::WmfGraphicsType))) {
2768                         enable = theClipboard().hasGraphicsContents(type);
2769                         break;
2770                 }
2771
2772                 // unknown argument
2773                 enable = false;
2774                 break;
2775          }
2776
2777         case LFUN_CLIPBOARD_PASTE:
2778         case LFUN_CLIPBOARD_PASTE_SIMPLE:
2779                 enable = !theClipboard().empty();
2780                 break;
2781
2782         case LFUN_PRIMARY_SELECTION_PASTE:
2783                 enable = cur.selection() || !theSelection().empty();
2784                 break;
2785
2786         case LFUN_SELECTION_PASTE:
2787                 enable = cap::selection();
2788                 break;
2789
2790         case LFUN_PARAGRAPH_MOVE_UP:
2791                 enable = cur.pit() > 0 && !cur.selection();
2792                 break;
2793
2794         case LFUN_PARAGRAPH_MOVE_DOWN:
2795                 enable = cur.pit() < cur.lastpit() && !cur.selection();
2796                 break;
2797
2798         case LFUN_CHANGE_ACCEPT:
2799         case LFUN_CHANGE_REJECT:
2800                 // In principle, these LFUNs should only be enabled if there
2801                 // is a change at the current position/in the current selection.
2802                 // However, without proper optimizations, this will inevitably
2803                 // result in unacceptable performance - just imagine a user who
2804                 // wants to select the complete content of a long document.
2805                 if (!cur.selection())
2806                         enable = cur.paragraph().isChanged(cur.pos());
2807                 else
2808                         // TODO: context-sensitive enabling of LFUN_CHANGE_ACCEPT/REJECT
2809                         // for selections.
2810                         enable = true;
2811                 break;
2812
2813         case LFUN_OUTLINE_UP:
2814         case LFUN_OUTLINE_DOWN:
2815         case LFUN_OUTLINE_IN:
2816         case LFUN_OUTLINE_OUT:
2817                 // FIXME: LyX is not ready for outlining within inset.
2818                 enable = isMainText()
2819                         && cur.buffer()->text().getTocLevel(cur.pit()) != Layout::NOT_IN_TOC;
2820                 break;
2821
2822         case LFUN_NEWLINE_INSERT:
2823                 // LaTeX restrictions (labels or empty par)
2824                 enable = (cur.pos() > cur.paragraph().beginOfBody());
2825                 break;
2826
2827         case LFUN_TAB_INSERT:
2828         case LFUN_TAB_DELETE:
2829                 enable = cur.paragraph().isPassThru();
2830                 break;
2831
2832         case LFUN_SET_GRAPHICS_GROUP: {
2833                 InsetGraphics * ins = graphics::getCurrentGraphicsInset(cur);
2834                 if (!ins)
2835                         enable = false;
2836                 else
2837                         flag.setOnOff(to_utf8(cmd.argument()) == ins->getParams().groupId);
2838                 break;
2839         }
2840
2841         case LFUN_NEWPAGE_INSERT:
2842                 // not allowed in description items
2843                 code = NEWPAGE_CODE;
2844                 enable = !inDescriptionItem(cur);
2845                 break;
2846
2847         case LFUN_DATE_INSERT: {
2848                 string const format = cmd.argument().empty()
2849                         ? lyxrc.date_insert_format : to_utf8(cmd.argument());
2850                 enable = support::os::is_valid_strftime(format);
2851                 break;
2852         }
2853
2854         case LFUN_LANGUAGE:
2855                 enable = !cur.paragraph().isPassThru();
2856                 flag.setOnOff(cmd.getArg(0) == cur.real_current_font.language()->lang());
2857                 break;
2858
2859         case LFUN_PARAGRAPH_BREAK:
2860                 enable = cur.inset().getLayout().isMultiPar();
2861                 break;
2862
2863         case LFUN_SPELLING_ADD:
2864         case LFUN_SPELLING_IGNORE:
2865         case LFUN_SPELLING_REMOVE:
2866                 enable = theSpellChecker();
2867                 break;
2868
2869         case LFUN_LAYOUT:
2870                 enable = !cur.inset().forcePlainLayout();
2871                 break;
2872
2873         case LFUN_LAYOUT_PARAGRAPH:
2874         case LFUN_PARAGRAPH_PARAMS:
2875         case LFUN_PARAGRAPH_PARAMS_APPLY:
2876         case LFUN_PARAGRAPH_UPDATE:
2877                 enable = cur.inset().allowParagraphCustomization();
2878                 break;
2879
2880         // FIXME: why are accent lfuns forbidden with pass_thru layouts?
2881         case LFUN_ACCENT_ACUTE:
2882         case LFUN_ACCENT_BREVE:
2883         case LFUN_ACCENT_CARON:
2884         case LFUN_ACCENT_CEDILLA:
2885         case LFUN_ACCENT_CIRCLE:
2886         case LFUN_ACCENT_CIRCUMFLEX:
2887         case LFUN_ACCENT_DOT:
2888         case LFUN_ACCENT_GRAVE:
2889         case LFUN_ACCENT_HUNGARIAN_UMLAUT:
2890         case LFUN_ACCENT_MACRON:
2891         case LFUN_ACCENT_OGONEK:
2892         case LFUN_ACCENT_TIE:
2893         case LFUN_ACCENT_TILDE:
2894         case LFUN_ACCENT_UMLAUT:
2895         case LFUN_ACCENT_UNDERBAR:
2896         case LFUN_ACCENT_UNDERDOT:
2897         case LFUN_FONT_DEFAULT:
2898         case LFUN_FONT_FRAK:
2899         case LFUN_FONT_SIZE:
2900         case LFUN_FONT_STATE:
2901         case LFUN_FONT_UNDERLINE:
2902         case LFUN_FONT_STRIKEOUT:
2903         case LFUN_FONT_UULINE:
2904         case LFUN_FONT_UWAVE:
2905         case LFUN_TEXTSTYLE_APPLY:
2906         case LFUN_TEXTSTYLE_UPDATE:
2907                 enable = !cur.paragraph().isPassThru();
2908                 break;
2909
2910         case LFUN_WORD_DELETE_FORWARD:
2911         case LFUN_WORD_DELETE_BACKWARD:
2912         case LFUN_LINE_DELETE:
2913         case LFUN_WORD_FORWARD:
2914         case LFUN_WORD_BACKWARD:
2915         case LFUN_WORD_RIGHT:
2916         case LFUN_WORD_LEFT:
2917         case LFUN_CHAR_FORWARD:
2918         case LFUN_CHAR_FORWARD_SELECT:
2919         case LFUN_CHAR_BACKWARD:
2920         case LFUN_CHAR_BACKWARD_SELECT:
2921         case LFUN_CHAR_LEFT:
2922         case LFUN_CHAR_LEFT_SELECT:
2923         case LFUN_CHAR_RIGHT:
2924         case LFUN_CHAR_RIGHT_SELECT:
2925         case LFUN_UP:
2926         case LFUN_UP_SELECT:
2927         case LFUN_DOWN:
2928         case LFUN_DOWN_SELECT:
2929         case LFUN_PARAGRAPH_UP_SELECT:
2930         case LFUN_PARAGRAPH_DOWN_SELECT:
2931         case LFUN_LINE_BEGIN_SELECT:
2932         case LFUN_LINE_END_SELECT:
2933         case LFUN_WORD_FORWARD_SELECT:
2934         case LFUN_WORD_BACKWARD_SELECT:
2935         case LFUN_WORD_RIGHT_SELECT:
2936         case LFUN_WORD_LEFT_SELECT:
2937         case LFUN_WORD_SELECT:
2938         case LFUN_SECTION_SELECT:
2939         case LFUN_BUFFER_BEGIN:
2940         case LFUN_BUFFER_END:
2941         case LFUN_BUFFER_BEGIN_SELECT:
2942         case LFUN_BUFFER_END_SELECT:
2943         case LFUN_INSET_BEGIN:
2944         case LFUN_INSET_END:
2945         case LFUN_INSET_BEGIN_SELECT:
2946         case LFUN_INSET_END_SELECT:
2947         case LFUN_INSET_SELECT_ALL:
2948         case LFUN_PARAGRAPH_UP:
2949         case LFUN_PARAGRAPH_DOWN:
2950         case LFUN_LINE_BEGIN:
2951         case LFUN_LINE_END:
2952         case LFUN_CHAR_DELETE_FORWARD:
2953         case LFUN_CHAR_DELETE_BACKWARD:
2954         case LFUN_WORD_UPCASE:
2955         case LFUN_WORD_LOWCASE:
2956         case LFUN_WORD_CAPITALIZE:
2957         case LFUN_CHARS_TRANSPOSE:
2958         case LFUN_SERVER_GET_XY:
2959         case LFUN_SERVER_SET_XY:
2960         case LFUN_SERVER_GET_LAYOUT:
2961         case LFUN_SELF_INSERT:
2962         case LFUN_UNICODE_INSERT:
2963         case LFUN_THESAURUS_ENTRY:
2964         case LFUN_ESCAPE:
2965                 // these are handled in our dispatch()
2966                 enable = true;
2967                 break;
2968
2969         case LFUN_INSET_INSERT: {
2970                 string const type = cmd.getArg(0);
2971                 if (type == "toc") {
2972                         code = TOC_CODE;
2973                         // not allowed in description items
2974                         //FIXME: couldn't this be merged in Inset::insetAllowed()?
2975                         enable = !inDescriptionItem(cur);
2976                 } else {
2977                         enable = true;
2978                 }
2979                 break;
2980         }
2981
2982         default:
2983                 return false;
2984         }
2985
2986         if (code != NO_CODE
2987             && (cur.empty()
2988                 || !cur.inset().insetAllowed(code)
2989                 || (cur.paragraph().layout().pass_thru && !allow_in_passthru)))
2990                 enable = false;
2991
2992         flag.setEnabled(enable);
2993         return true;
2994 }
2995
2996
2997 void Text::pasteString(Cursor & cur, docstring const & clip,
2998                 bool asParagraphs)
2999 {
3000         if (!clip.empty()) {
3001                 cur.recordUndo();
3002                 if (asParagraphs)
3003                         insertStringAsParagraphs(cur, clip, cur.current_font);
3004                 else
3005                         insertStringAsLines(cur, clip, cur.current_font);
3006         }
3007 }
3008
3009
3010 // FIXME: an item inset would make things much easier.
3011 bool Text::inDescriptionItem(Cursor & cur) const
3012 {
3013         Paragraph & par = cur.paragraph();
3014         pos_type const pos = cur.pos();
3015         pos_type const body_pos = par.beginOfBody();
3016
3017         if (par.layout().latextype != LATEX_LIST_ENVIRONMENT
3018             && (par.layout().latextype != LATEX_ITEM_ENVIRONMENT
3019                 || par.layout().margintype != MARGIN_FIRST_DYNAMIC))
3020                 return false;
3021
3022         return (pos < body_pos
3023                 || (pos == body_pos
3024                     && (pos == 0 || par.getChar(pos - 1) != ' ')));
3025 }
3026
3027 } // namespace lyx