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 #include "support/regex.h"
  77
  78 #include "mathed/InsetMathHull.h"
  79 #include "mathed/MathMacroTemplate.h"
  80
  81 #include <boost/next_prior.hpp>
  82
  83 #include <clocale>
  84 #include <sstream>
  85
  86 using namespace std;
  87 using namespace lyx::support;
  88
  89 namespace lyx {
  90
  91 using cap::copySelection;
  92 using cap::cutSelection;
  93 using cap::pasteFromStack;
  94 using cap::pasteClipboardText;
  95 using cap::pasteClipboardGraphics;
  96 using cap::replaceSelection;
  97 using cap::grabAndEraseSelection;
  98 using cap::selClearOrDel;
  99 using cap::pasteSimpleText;
 100
 101 // globals...
 102 static Font freefont(ignore_font, ignore_language);
 103 static bool toggleall = false;
 104
 105 static void toggleAndShow(Cursor & cur, Text * text,
 106         Font const & font, bool toggleall = true)
 107 {
 108         text->toggleFree(cur, font, toggleall);
 109
 110         if (font.language() != ignore_language ||
 111             font.fontInfo().number() != FONT_IGNORE) {
 112                 TextMetrics const & tm = cur.bv().textMetrics(text);
 113                 if (cur.boundary() != tm.isRTLBoundary(cur.pit(), cur.pos(),
 114                                                        cur.real_current_font))
 115                         text->setCursor(cur, cur.pit(), cur.pos(),
 116                                         false, !cur.boundary());
 117         }
 118 }
 119
 120
 121 static void moveCursor(Cursor & cur, bool selecting)
 122 {
 123         if (selecting || cur.mark())
 124                 cur.setSelection();
 125 }
 126
 127
 128 static void finishChange(Cursor & cur, bool selecting)
 129 {
 130         cur.finishUndo();
 131         moveCursor(cur, selecting);
 132 }
 133
 134
 135 static void mathDispatch(Cursor & cur, FuncRequest const & cmd, bool display)
 136 {
 137         cur.recordUndo();
 138         docstring sel = cur.selectionAsString(false);
 139
 140         // It may happen that sel is empty but there is a selection
 141         replaceSelection(cur);
 142
 143         // Is this a valid formula?
 144         bool valid = true;
 145
 146         if (sel.empty()) {
 147 #ifdef ENABLE_ASSERTIONS
 148                 const int old_pos = cur.pos();
 149 #endif
 150                 cur.insert(new InsetMathHull(cur.buffer(), hullSimple));
 151 #ifdef ENABLE_ASSERTIONS
 152                 LATTEST(old_pos == cur.pos());
 153 #endif
 154                 cur.nextInset()->edit(cur, true);
 155                 // don't do that also for LFUN_MATH_MODE
 156                 // unless you want end up with always changing
 157                 // to mathrm when opening an inlined inset --
 158                 // I really hate "LyXfunc overloading"...
 159                 if (display)
 160                         cur.dispatch(FuncRequest(LFUN_MATH_DISPLAY));
 161                 // Avoid an unnecessary undo step if cmd.argument
 162                 // is empty
 163                 if (!cmd.argument().empty())
 164                         cur.dispatch(FuncRequest(LFUN_MATH_INSERT,
 165                                                  cmd.argument()));
 166         } else {
 167                 // create a macro if we see "\\newcommand"
 168                 // somewhere, and an ordinary formula
 169                 // otherwise
 170                 if (sel.find(from_ascii("\\newcommand")) == string::npos
 171                                 && sel.find(from_ascii("\\newlyxcommand")) == string::npos
 172                                 && sel.find(from_ascii("\\def")) == string::npos)
 173                 {
 174                         InsetMathHull * formula = new InsetMathHull(cur.buffer());
 175                         string const selstr = to_utf8(sel);
 176                         istringstream is(selstr);
 177                         Lexer lex;
 178                         lex.setStream(is);
 179                         if (!formula->readQuiet(lex)) {
 180                                 // No valid formula, let's try with delims
 181                                 is.str("$" + selstr + "$");
 182                                 lex.setStream(is);
 183                                 if (!formula->readQuiet(lex)) {
 184                                         // Still not valid, leave it as is
 185                                         valid = false;
 186                                         delete formula;
 187                                         cur.insert(sel);
 188                                 } else
 189                                         cur.insert(formula);
 190                         } else
 191                                 cur.insert(formula);
 192                 } else {
 193                         cur.insert(new MathMacroTemplate(cur.buffer(), sel));
 194                 }
 195         }
 196         if (valid)
 197                 cur.message(from_utf8(N_("Math editor mode")));
 198         else
 199                 cur.message(from_utf8(N_("No valid math formula")));
 200 }
 201
 202
 203 void regexpDispatch(Cursor & cur, FuncRequest const & cmd)
 204 {
 205         LASSERT(cmd.action() == LFUN_REGEXP_MODE, return);
 206         if (cur.inRegexped()) {
 207                 cur.message(_("Already in regular expression mode"));
 208                 return;
 209         }
 210         cur.recordUndo();
 211         docstring sel = cur.selectionAsString(false);
 212
 213         // It may happen that sel is empty but there is a selection
 214         replaceSelection(cur);
 215
 216         cur.insert(new InsetMathHull(cur.buffer(), hullRegexp));
 217         cur.nextInset()->edit(cur, true);
 218         cur.niceInsert(sel);
 219
 220         cur.message(_("Regexp editor mode"));
 221 }
 222
 223
 224 static void specialChar(Cursor & cur, InsetSpecialChar::Kind kind)
 225 {
 226         cur.recordUndo();
 227         cap::replaceSelection(cur);
 228         cur.insert(new InsetSpecialChar(kind));
 229         cur.posForward();
 230 }
 231
 232
 233 static void ipaChar(Cursor & cur, InsetIPAChar::Kind kind)
 234 {
 235         cur.recordUndo();
 236         cap::replaceSelection(cur);
 237         cur.insert(new InsetIPAChar(kind));
 238         cur.posForward();
 239 }
 240
 241
 242 static bool doInsertInset(Cursor & cur, Text * text,
 243         FuncRequest const & cmd, bool edit, bool pastesel)
 244 {
 245         Buffer & buffer = cur.bv().buffer();
 246         BufferParams const & bparams = buffer.params();
 247         Inset * inset = createInset(&buffer, cmd);
 248         if (!inset)
 249                 return false;
 250
 251         if (InsetCollapsable * ci = inset->asInsetCollapsable())
 252                 ci->setButtonLabel();
 253
 254         cur.recordUndo();
 255         if (cmd.action() == LFUN_INDEX_INSERT) {
 256                 docstring ds = subst(text->getStringToIndex(cur), '\n', ' ');
 257                 text->insertInset(cur, inset);
 258                 if (edit)
 259                         inset->edit(cur, true);
 260                 // Now put this into inset
 261                 Font const f(inherit_font, cur.current_font.language());
 262                 if (!ds.empty()) {
 263                         cur.text()->insertStringAsLines(cur, ds, f);
 264                         cur.leaveInset(*inset);
 265                 }
 266                 return true;
 267         }
 268
 269         bool gotsel = false;
 270         if (cur.selection()) {
 271                 cutSelection(cur, false, pastesel);
 272                 cur.clearSelection();
 273                 gotsel = true;
 274         }
 275         text->insertInset(cur, inset);
 276
 277         if (edit)
 278                 inset->edit(cur, true);
 279
 280         if (!gotsel || !pastesel)
 281                 return true;
 282
 283         pasteFromStack(cur, cur.buffer()->errorList("Paste"), 0);
 284         cur.buffer()->errors("Paste");
 285         cur.clearSelection(); // bug 393
 286         cur.finishUndo();
 287         InsetText * inset_text = inset->asInsetText();
 288         if (inset_text) {
 289                 inset_text->fixParagraphsFont();
 290                 if (!inset_text->allowMultiPar() || cur.lastpit() == 0) {
 291                         // reset first par to default
 292                         cur.text()->paragraphs().begin()
 293                                 ->setPlainOrDefaultLayout(bparams.documentClass());
 294                         cur.pos() = 0;
 295                         cur.pit() = 0;
 296                         // Merge multiple paragraphs -- hack
 297                         while (cur.lastpit() > 0)
 298                                 mergeParagraph(bparams, cur.text()->paragraphs(), 0);
 299                         if (cmd.action() == LFUN_FLEX_INSERT)
 300                                 return true;
 301                         Cursor old = cur;
 302                         cur.leaveInset(*inset);
 303                         if (cmd.action() == LFUN_PREVIEW_INSERT
 304                             || cmd.action() == LFUN_IPA_INSERT)
 305                                 // trigger preview
 306                                 notifyCursorLeavesOrEnters(old, cur);
 307                 }
 308         } else {
 309                 cur.leaveInset(*inset);
 310                 // reset surrounding par to default
 311                 DocumentClass const & dc = bparams.documentClass();
 312                 docstring const layoutname = inset->usePlainLayout()
 313                         ? dc.plainLayoutName()
 314                         : dc.defaultLayoutName();
 315                 text->setLayout(cur, layoutname);
 316         }
 317         return true;
 318 }
 319
 320
 321 string const freefont2string()
 322 {
 323         return freefont.toString(toggleall);
 324 }
 325
 326
 327 /// the type of outline operation
 328 enum OutlineOp {
 329         OutlineUp, // Move this header with text down
 330         OutlineDown,   // Move this header with text up
 331         OutlineIn, // Make this header deeper
 332         OutlineOut // Make this header shallower
 333 };
 334
 335
 336 static void outline(OutlineOp mode, Cursor & cur)
 337 {
 338         Buffer & buf = *cur.buffer();
 339         pit_type & pit = cur.pit();
 340         ParagraphList & pars = buf.text().paragraphs();
 341         ParagraphList::iterator const bgn = pars.begin();
 342         // The first paragraph of the area to be copied:
 343         ParagraphList::iterator start = boost::next(bgn, pit);
 344         // The final paragraph of area to be copied:
 345         ParagraphList::iterator finish = start;
 346         ParagraphList::iterator const end = pars.end();
 347
 348         DocumentClass const & tc = buf.params().documentClass();
 349
 350         int const thistoclevel = buf.text().getTocLevel(distance(bgn, start));
 351         int toclevel;
 352
 353         // Move out (down) from this section header
 354         if (finish != end)
 355                 ++finish;
 356
 357         // Seek the one (on same level) below
 358         for (; finish != end; ++finish) {
 359                 toclevel = buf.text().getTocLevel(distance(bgn, finish));
 360                 if (toclevel != Layout::NOT_IN_TOC && toclevel <= thistoclevel)
 361                         break;
 362         }
 363
 364         switch (mode) {
 365                 case OutlineUp: {
 366                         if (start == pars.begin())
 367                                 // Nothing to move.
 368                                 return;
 369                         ParagraphList::iterator dest = start;
 370                         // Move out (up) from this header
 371                         if (dest == bgn)
 372                                 return;
 373                         // Search previous same-level header above
 374                         do {
 375                                 --dest;
 376                                 toclevel = buf.text().getTocLevel(distance(bgn, dest));
 377                         } while(dest != bgn
 378                                 && (toclevel == Layout::NOT_IN_TOC
 379                                     || toclevel > thistoclevel));
 380                         // Not found; do nothing
 381                         if (toclevel == Layout::NOT_IN_TOC || toclevel > thistoclevel)
 382                                 return;
 383                         pit_type const newpit = distance(bgn, dest);
 384                         pit_type const len = distance(start, finish);
 385                         pit_type const deletepit = pit + len;
 386                         buf.undo().recordUndo(cur, ATOMIC_UNDO, newpit, deletepit - 1);
 387                         pars.splice(dest, start, finish);
 388                         cur.pit() = newpit;
 389                         break;
 390                 }
 391                 case OutlineDown: {
 392                         if (finish == end)
 393                                 // Nothing to move.
 394                                 return;
 395                         // Go one down from *this* header:
 396                         ParagraphList::iterator dest = boost::next(finish, 1);
 397                         // Go further down to find header to insert in front of:
 398                         for (; dest != end; ++dest) {
 399                                 toclevel = buf.text().getTocLevel(distance(bgn, dest));
 400                                 if (toclevel != Layout::NOT_IN_TOC
 401                                       && toclevel <= thistoclevel)
 402                                         break;
 403                         }
 404                         // One such was found:
 405                         pit_type newpit = distance(bgn, dest);
 406                         buf.undo().recordUndo(cur, ATOMIC_UNDO, pit, newpit - 1);
 407                         pit_type const len = distance(start, finish);
 408                         pars.splice(dest, start, finish);
 409                         cur.pit() = newpit - len;
 410                         break;
 411                 }
 412                 case OutlineIn:
 413                 case OutlineOut: {
 414                         pit_type const len = distance(start, finish);
 415                         buf.undo().recordUndo(cur, ATOMIC_UNDO, pit, pit + len - 1);
 416                         for (; start != finish; ++start) {
 417                                 toclevel = buf.text().getTocLevel(distance(bgn, start));
 418                                 if (toclevel == Layout::NOT_IN_TOC)
 419                                         continue;
 420                                 DocumentClass::const_iterator lit = tc.begin();
 421                                 DocumentClass::const_iterator len = tc.end();
 422                                 for (; lit != len; ++lit) {
 423                                         if (lit->toclevel == (mode == OutlineIn ?
 424                                                               toclevel + 1 : toclevel - 1) &&
 425                                             start->layout().labeltype == lit->labeltype) {
 426                                                 start->setLayout(*lit);
 427                                                 break;
 428                                         }
 429                                 }
 430                         }
 431                         break;
 432                 }
 433         }
 434 }
 435
 436
 437 void Text::number(Cursor & cur)
 438 {
 439         FontInfo font = ignore_font;
 440         font.setNumber(FONT_TOGGLE);
 441         toggleAndShow(cur, this, Font(font, ignore_language));
 442 }
 443
 444
 445 bool Text::isRTL(Paragraph const & par) const
 446 {
 447         Buffer const & buffer = owner_->buffer();
 448         return par.isRTL(buffer.params());
 449 }
 450
 451
 452 void Text::dispatch(Cursor & cur, FuncRequest & cmd)
 453 {
 454         LYXERR(Debug::ACTION, "Text::dispatch: cmd: " << cmd);
 455
 456         // Dispatch if the cursor is inside the text. It is not the
 457         // case for context menus (bug 5797).
 458         if (cur.text() != this) {
 459                 cur.undispatched();
 460                 return;
 461         }
 462
 463         BufferView * bv = &cur.bv();
 464         TextMetrics * tm = &bv->textMetrics(this);
 465         if (!tm->contains(cur.pit())) {
 466                 lyx::dispatch(FuncRequest(LFUN_SCREEN_SHOW_CURSOR));
 467                 tm = &bv->textMetrics(this);
 468         }
 469
 470         // FIXME: We use the update flag to indicates wether a singlePar or a
 471         // full screen update is needed. We reset it here but shall we restore it
 472         // at the end?
 473         cur.noScreenUpdate();
 474
 475         LBUFERR(this == cur.text());
 476         CursorSlice const oldTopSlice = cur.top();
 477         bool const oldBoundary = cur.boundary();
 478         bool const oldSelection = cur.selection();
 479         // Signals that, even if needsUpdate == false, an update of the
 480         // cursor paragraph is required
 481         bool singleParUpdate = lyxaction.funcHasFlag(cmd.action(),
 482                 LyXAction::SingleParUpdate);
 483         // Signals that a full-screen update is required
 484         bool needsUpdate = !(lyxaction.funcHasFlag(cmd.action(),
 485                 LyXAction::NoUpdate) || singleParUpdate);
 486         bool const last_misspelled = lyxrc.spellcheck_continuously
 487                 && cur.paragraph().isMisspelled(cur.pos(), true);
 488
 489         FuncCode const act = cmd.action();
 490         switch (act) {
 491
 492         case LFUN_PARAGRAPH_MOVE_DOWN: {
 493                 pit_type const pit = cur.pit();
 494                 recUndo(cur, pit, pit + 1);
 495                 cur.finishUndo();
 496                 pars_.swap(pit, pit + 1);
 497                 needsUpdate = true;
 498                 cur.forceBufferUpdate();
 499                 ++cur.pit();
 500                 break;
 501         }
 502
 503         case LFUN_PARAGRAPH_MOVE_UP: {
 504                 pit_type const pit = cur.pit();
 505                 recUndo(cur, pit - 1, pit);
 506                 cur.finishUndo();
 507                 pars_.swap(pit, pit - 1);
 508                 --cur.pit();
 509                 needsUpdate = true;
 510                 cur.forceBufferUpdate();
 511                 break;
 512         }
 513
 514         case LFUN_APPENDIX: {
 515                 Paragraph & par = cur.paragraph();
 516                 bool start = !par.params().startOfAppendix();
 517
 518 // FIXME: The code below only makes sense at top level.
 519 // Should LFUN_APPENDIX be restricted to top-level paragraphs?
 520                 // ensure that we have only one start_of_appendix in this document
 521                 // FIXME: this don't work for multipart document!
 522                 for (pit_type tmp = 0, end = pars_.size(); tmp != end; ++tmp) {
 523                         if (pars_[tmp].params().startOfAppendix()) {
 524                                 recUndo(cur, tmp);
 525                                 pars_[tmp].params().startOfAppendix(false);
 526                                 break;
 527                         }
 528                 }
 529
 530                 cur.recordUndo();
 531                 par.params().startOfAppendix(start);
 532
 533                 // we can set the refreshing parameters now
 534                 cur.forceBufferUpdate();
 535                 break;
 536         }
 537
 538         case LFUN_WORD_DELETE_FORWARD:
 539                 if (cur.selection())
 540                         cutSelection(cur, true, false);
 541                 else
 542                         deleteWordForward(cur);
 543                 finishChange(cur, false);
 544                 break;
 545
 546         case LFUN_WORD_DELETE_BACKWARD:
 547                 if (cur.selection())
 548                         cutSelection(cur, true, false);
 549                 else
 550                         deleteWordBackward(cur);
 551                 finishChange(cur, false);
 552                 break;
 553
 554         case LFUN_LINE_DELETE_FORWARD:
 555                 if (cur.selection())
 556                         cutSelection(cur, true, false);
 557                 else
 558                         tm->deleteLineForward(cur);
 559                 finishChange(cur, false);
 560                 break;
 561
 562         case LFUN_BUFFER_BEGIN:
 563         case LFUN_BUFFER_BEGIN_SELECT:
 564                 needsUpdate |= cur.selHandle(act == LFUN_BUFFER_BEGIN_SELECT);
 565                 if (cur.depth() == 1)
 566                         needsUpdate |= cursorTop(cur);
 567                 else
 568                         cur.undispatched();
 569                 cur.screenUpdateFlags(Update::FitCursor);
 570                 break;
 571
 572         case LFUN_BUFFER_END:
 573         case LFUN_BUFFER_END_SELECT:
 574                 needsUpdate |= cur.selHandle(act == LFUN_BUFFER_END_SELECT);
 575                 if (cur.depth() == 1)
 576                         needsUpdate |= cursorBottom(cur);
 577                 else
 578                         cur.undispatched();
 579                 cur.screenUpdateFlags(Update::FitCursor);
 580                 break;
 581
 582         case LFUN_INSET_BEGIN:
 583         case LFUN_INSET_BEGIN_SELECT:
 584                 needsUpdate |= cur.selHandle(act == LFUN_INSET_BEGIN_SELECT);
 585                 if (cur.depth() == 1 || !cur.top().at_begin())
 586                         needsUpdate |= cursorTop(cur);
 587                 else
 588                         cur.undispatched();
 589                 cur.screenUpdateFlags(Update::FitCursor);
 590                 break;
 591
 592         case LFUN_INSET_END:
 593         case LFUN_INSET_END_SELECT:
 594                 needsUpdate |= cur.selHandle(act == LFUN_INSET_END_SELECT);
 595                 if (cur.depth() == 1 || !cur.top().at_end())
 596                         needsUpdate |= cursorBottom(cur);
 597                 else
 598                         cur.undispatched();
 599                 cur.screenUpdateFlags(Update::FitCursor);
 600                 break;
 601
 602         case LFUN_CHAR_FORWARD:
 603         case LFUN_CHAR_FORWARD_SELECT:
 604                 //LYXERR0(" LFUN_CHAR_FORWARD[SEL]:\n" << cur);
 605                 needsUpdate |= cur.selHandle(act == LFUN_CHAR_FORWARD_SELECT);
 606                 needsUpdate |= cursorForward(cur);
 607
 608                 if (!needsUpdate && oldTopSlice == cur.top()
 609                                 && cur.boundary() == oldBoundary) {
 610                         cur.undispatched();
 611                         cmd = FuncRequest(LFUN_FINISHED_FORWARD);
 612
 613                         // we will probably be moving out the inset, so we should execute
 614                         // the depm-mechanism, but only when the cursor has a place to
 615                         // go outside this inset, i.e. in a slice above.
 616                         if (cur.depth() > 1 && cur.pos() == cur.lastpos()
 617                                   && cur.pit() == cur.lastpit()) {
 618                                 // The cursor hasn't changed yet. To give the
 619                                 // DEPM the possibility of doing something we must
 620                                 // provide it with two different cursors.
 621                                 Cursor dummy = cur;
 622                                 dummy.pos() = dummy.pit() = 0;
 623                                 if (cur.bv().checkDepm(dummy, cur))
 624                                         cur.forceBufferUpdate();
 625                         }
 626                 }
 627                 break;
 628
 629         case LFUN_CHAR_BACKWARD:
 630         case LFUN_CHAR_BACKWARD_SELECT:
 631                 //lyxerr << "handle LFUN_CHAR_BACKWARD[_SELECT]:\n" << cur << endl;
 632                 needsUpdate |= cur.selHandle(act == LFUN_CHAR_BACKWARD_SELECT);
 633                 needsUpdate |= cursorBackward(cur);
 634
 635                 if (!needsUpdate && oldTopSlice == cur.top()
 636                         && cur.boundary() == oldBoundary) {
 637                         cur.undispatched();
 638                         cmd = FuncRequest(LFUN_FINISHED_BACKWARD);
 639
 640                         // we will probably be moving out the inset, so we should execute
 641                         // the depm-mechanism, but only when the cursor has a place to
 642                         // go outside this inset, i.e. in a slice above.
 643                         if (cur.depth() > 1 && cur.pos() == 0 && cur.pit() == 0) {
 644                                 // The cursor hasn't changed yet. To give the
 645                                 // DEPM the possibility of doing something we must
 646                                 // provide it with two different cursors.
 647                                 Cursor dummy = cur;
 648                                 dummy.pos() = cur.lastpos();
 649                                 dummy.pit() = cur.lastpit();
 650                                 if (cur.bv().checkDepm(dummy, cur))
 651                                         cur.forceBufferUpdate();
 652                         }
 653                 }
 654                 break;
 655
 656         case LFUN_CHAR_LEFT:
 657         case LFUN_CHAR_LEFT_SELECT:
 658                 if (lyxrc.visual_cursor) {
 659                         needsUpdate |= cur.selHandle(act == LFUN_CHAR_LEFT_SELECT);
 660                         needsUpdate |= cursorVisLeft(cur);
 661                         if (!needsUpdate && oldTopSlice == cur.top()
 662                                         && cur.boundary() == oldBoundary) {
 663                                 cur.undispatched();
 664                                 cmd = FuncRequest(LFUN_FINISHED_LEFT);
 665                         }
 666                 } else {
 667                         if (reverseDirectionNeeded(cur)) {
 668                                 cmd.setAction(cmd.action() == LFUN_CHAR_LEFT_SELECT ?
 669                                         LFUN_CHAR_FORWARD_SELECT : LFUN_CHAR_FORWARD);
 670                         } else {
 671                                 cmd.setAction(cmd.action() == LFUN_CHAR_LEFT_SELECT ?
 672                                         LFUN_CHAR_BACKWARD_SELECT : LFUN_CHAR_BACKWARD);
 673                         }
 674                         dispatch(cur, cmd);
 675                         return;
 676                 }
 677                 break;
 678
 679         case LFUN_CHAR_RIGHT:
 680         case LFUN_CHAR_RIGHT_SELECT:
 681                 if (lyxrc.visual_cursor) {
 682                         needsUpdate |= cur.selHandle(cmd.action() == LFUN_CHAR_RIGHT_SELECT);
 683                         needsUpdate |= cursorVisRight(cur);
 684                         if (!needsUpdate && oldTopSlice == cur.top()
 685                                         && cur.boundary() == oldBoundary) {
 686                                 cur.undispatched();
 687                                 cmd = FuncRequest(LFUN_FINISHED_RIGHT);
 688                         }
 689                 } else {
 690                         if (reverseDirectionNeeded(cur)) {
 691                                 cmd.setAction(cmd.action() == LFUN_CHAR_RIGHT_SELECT ?
 692                                         LFUN_CHAR_BACKWARD_SELECT : LFUN_CHAR_BACKWARD);
 693                         } else {
 694                                 cmd.setAction(cmd.action() == LFUN_CHAR_RIGHT_SELECT ?
 695                                         LFUN_CHAR_FORWARD_SELECT : LFUN_CHAR_FORWARD);
 696                         }
 697                         dispatch(cur, cmd);
 698                         return;
 699                 }
 700                 break;
 701
 702
 703         case LFUN_UP_SELECT:
 704         case LFUN_DOWN_SELECT:
 705         case LFUN_UP:
 706         case LFUN_DOWN: {
 707                 // stop/start the selection
 708                 bool select = cmd.action() == LFUN_DOWN_SELECT ||
 709                         cmd.action() == LFUN_UP_SELECT;
 710
 711                 // move cursor up/down
 712                 bool up = cmd.action() == LFUN_UP_SELECT || cmd.action() == LFUN_UP;
 713                 bool const atFirstOrLastRow = cur.atFirstOrLastRow(up);
 714
 715                 if (!atFirstOrLastRow) {
 716                         needsUpdate |= cur.selHandle(select);
 717                         cur.upDownInText(up, needsUpdate);
 718                         needsUpdate |= cur.beforeDispatchCursor().inMathed();
 719                 } else {
 720                         // if the cursor cannot be moved up or down do not remove
 721                         // the selection right now, but wait for the next dispatch.
 722                         if (select)
 723                                 needsUpdate |= cur.selHandle(select);
 724                         cur.upDownInText(up, needsUpdate);
 725                         cur.undispatched();
 726                 }
 727
 728                 break;
 729         }
 730
 731         case LFUN_PARAGRAPH_UP:
 732         case LFUN_PARAGRAPH_UP_SELECT:
 733                 needsUpdate |= cur.selHandle(cmd.action() == LFUN_PARAGRAPH_UP_SELECT);
 734                 needsUpdate |= cursorUpParagraph(cur);
 735                 break;
 736
 737         case LFUN_PARAGRAPH_DOWN:
 738         case LFUN_PARAGRAPH_DOWN_SELECT:
 739                 needsUpdate |= cur.selHandle(cmd.action() == LFUN_PARAGRAPH_DOWN_SELECT);
 740                 needsUpdate |= cursorDownParagraph(cur);
 741                 break;
 742
 743         case LFUN_LINE_BEGIN:
 744         case LFUN_LINE_BEGIN_SELECT:
 745                 needsUpdate |= cur.selHandle(cmd.action() == LFUN_LINE_BEGIN_SELECT);
 746                 needsUpdate |= tm->cursorHome(cur);
 747                 break;
 748
 749         case LFUN_LINE_END:
 750         case LFUN_LINE_END_SELECT:
 751                 needsUpdate |= cur.selHandle(cmd.action() == LFUN_LINE_END_SELECT);
 752                 needsUpdate |= tm->cursorEnd(cur);
 753                 break;
 754
 755         case LFUN_SECTION_SELECT: {
 756                 Buffer const & buf = *cur.buffer();
 757                 pit_type const pit = cur.pit();
 758                 ParagraphList & pars = buf.text().paragraphs();
 759                 ParagraphList::iterator bgn = pars.begin();
 760                 // The first paragraph of the area to be selected:
 761                 ParagraphList::iterator start = boost::next(bgn, pit);
 762                 // The final paragraph of area to be selected:
 763                 ParagraphList::iterator finish = start;
 764                 ParagraphList::iterator end = pars.end();
 765
 766                 int const thistoclevel = buf.text().getTocLevel(distance(bgn, start));
 767                 if (thistoclevel == Layout::NOT_IN_TOC)
 768                         break;
 769
 770                 cur.pos() = 0;
 771                 Cursor const old_cur = cur;
 772                 needsUpdate |= cur.selHandle(true);
 773
 774                 // Move out (down) from this section header
 775                 if (finish != end)
 776                         ++finish;
 777
 778                 // Seek the one (on same level) below
 779                 for (; finish != end; ++finish, ++cur.pit()) {
 780                         int const toclevel = buf.text().getTocLevel(distance(bgn, finish));
 781                         if (toclevel != Layout::NOT_IN_TOC && toclevel <= thistoclevel)
 782                                 break;
 783                 }
 784                 cur.pos() = cur.lastpos();
 785
 786                 needsUpdate |= cur != old_cur;
 787                 break;
 788         }
 789
 790         case LFUN_WORD_RIGHT:
 791         case LFUN_WORD_RIGHT_SELECT:
 792                 if (lyxrc.visual_cursor) {
 793                         needsUpdate |= cur.selHandle(cmd.action() == LFUN_WORD_RIGHT_SELECT);
 794                         needsUpdate |= cursorVisRightOneWord(cur);
 795                         if (!needsUpdate && oldTopSlice == cur.top()
 796                                         && cur.boundary() == oldBoundary) {
 797                                 cur.undispatched();
 798                                 cmd = FuncRequest(LFUN_FINISHED_RIGHT);
 799                         }
 800                 } else {
 801                         if (reverseDirectionNeeded(cur)) {
 802                                 cmd.setAction(cmd.action() == LFUN_WORD_RIGHT_SELECT ?
 803                                                 LFUN_WORD_BACKWARD_SELECT : LFUN_WORD_BACKWARD);
 804                         } else {
 805                                 cmd.setAction(cmd.action() == LFUN_WORD_RIGHT_SELECT ?
 806                                                 LFUN_WORD_FORWARD_SELECT : LFUN_WORD_FORWARD);
 807                         }
 808                         dispatch(cur, cmd);
 809                         return;
 810                 }
 811                 break;
 812
 813         case LFUN_WORD_FORWARD:
 814         case LFUN_WORD_FORWARD_SELECT:
 815                 needsUpdate |= cur.selHandle(cmd.action() == LFUN_WORD_FORWARD_SELECT);
 816                 needsUpdate |= cursorForwardOneWord(cur);
 817
 818                 if (!needsUpdate && oldTopSlice == cur.top()
 819                                 && cur.boundary() == oldBoundary) {
 820                         cur.undispatched();
 821                         cmd = FuncRequest(LFUN_FINISHED_FORWARD);
 822
 823                         // we will probably be moving out the inset, so we should execute
 824                         // the depm-mechanism, but only when the cursor has a place to
 825                         // go outside this inset, i.e. in a slice above.
 826                         if (cur.depth() > 1 && cur.pos() == cur.lastpos()
 827                                   && cur.pit() == cur.lastpit()) {
 828                                 // The cursor hasn't changed yet. To give the
 829                                 // DEPM the possibility of doing something we must
 830                                 // provide it with two different cursors.
 831                                 Cursor dummy = cur;
 832                                 dummy.pos() = dummy.pit() = 0;
 833                                 if (cur.bv().checkDepm(dummy, cur))
 834                                         cur.forceBufferUpdate();
 835                         }
 836                 }
 837                 break;
 838
 839         case LFUN_WORD_LEFT:
 840         case LFUN_WORD_LEFT_SELECT:
 841                 if (lyxrc.visual_cursor) {
 842                         needsUpdate |= cur.selHandle(cmd.action() == LFUN_WORD_LEFT_SELECT);
 843                         needsUpdate |= cursorVisLeftOneWord(cur);
 844                         if (!needsUpdate && oldTopSlice == cur.top()
 845                                         && cur.boundary() == oldBoundary) {
 846                                 cur.undispatched();
 847                                 cmd = FuncRequest(LFUN_FINISHED_LEFT);
 848                         }
 849                 } else {
 850                         if (reverseDirectionNeeded(cur)) {
 851                                 cmd.setAction(cmd.action() == LFUN_WORD_LEFT_SELECT ?
 852                                                 LFUN_WORD_FORWARD_SELECT : LFUN_WORD_FORWARD);
 853                         } else {
 854                                 cmd.setAction(cmd.action() == LFUN_WORD_LEFT_SELECT ?
 855                                                 LFUN_WORD_BACKWARD_SELECT : LFUN_WORD_BACKWARD);
 856                         }
 857                         dispatch(cur, cmd);
 858                         return;
 859                 }
 860                 break;
 861
 862         case LFUN_WORD_BACKWARD:
 863         case LFUN_WORD_BACKWARD_SELECT:
 864                 needsUpdate |= cur.selHandle(cmd.action() == LFUN_WORD_BACKWARD_SELECT);
 865                 needsUpdate |= cursorBackwardOneWord(cur);
 866
 867                 if (!needsUpdate && oldTopSlice == cur.top()
 868                                 && cur.boundary() == oldBoundary) {
 869                         cur.undispatched();
 870                         cmd = FuncRequest(LFUN_FINISHED_BACKWARD);
 871
 872                         // we will probably be moving out the inset, so we should execute
 873                         // the depm-mechanism, but only when the cursor has a place to
 874                         // go outside this inset, i.e. in a slice above.
 875                         if (cur.depth() > 1 && cur.pos() == 0
 876                                   && cur.pit() == 0) {
 877                                 // The cursor hasn't changed yet. To give the
 878                                 // DEPM the possibility of doing something we must
 879                                 // provide it with two different cursors.
 880                                 Cursor dummy = cur;
 881                                 dummy.pos() = cur.lastpos();
 882                                 dummy.pit() = cur.lastpit();
 883                                 if (cur.bv().checkDepm(dummy, cur))
 884                                         cur.forceBufferUpdate();
 885                         }
 886                 }
 887                 break;
 888
 889         case LFUN_WORD_SELECT: {
 890                 selectWord(cur, WHOLE_WORD);
 891                 finishChange(cur, true);
 892                 break;
 893         }
 894
 895         case LFUN_NEWLINE_INSERT: {
 896                 InsetNewlineParams inp;
 897                 docstring arg = cmd.argument();
 898                 if (arg == "linebreak")
 899                         inp.kind = InsetNewlineParams::LINEBREAK;
 900                 else
 901                         inp.kind = InsetNewlineParams::NEWLINE;
 902                 cap::replaceSelection(cur);
 903                 cur.recordUndo();
 904                 cur.insert(new InsetNewline(inp));
 905                 cur.posForward();
 906                 moveCursor(cur, false);
 907                 break;
 908         }
 909
 910         case LFUN_TAB_INSERT: {
 911                 bool const multi_par_selection = cur.selection() &&
 912                         cur.selBegin().pit() != cur.selEnd().pit();
 913                 if (multi_par_selection) {
 914                         // If there is a multi-paragraph selection, a tab is inserted
 915                         // at the beginning of each paragraph.
 916                         cur.recordUndoSelection();
 917                         pit_type const pit_end = cur.selEnd().pit();
 918                         for (pit_type pit = cur.selBegin().pit(); pit <= pit_end; pit++) {
 919                                 pars_[pit].insertChar(0, '\t',
 920                                                       bv->buffer().params().track_changes);
 921                                 // Update the selection pos to make sure the selection does not
 922                                 // change as the inserted tab will increase the logical pos.
 923                                 if (cur.realAnchor().pit() == pit)
 924                                         cur.realAnchor().forwardPos();
 925                                 if (cur.pit() == pit)
 926                                         cur.forwardPos();
 927                         }
 928                         cur.finishUndo();
 929                 } else {
 930                         // Maybe we shouldn't allow tabs within a line, because they
 931                         // are not (yet) aligned as one might do expect.
 932                         FuncRequest cmd(LFUN_SELF_INSERT, from_ascii("\t"));
 933                         dispatch(cur, cmd);
 934                 }
 935                 break;
 936         }
 937
 938         case LFUN_TAB_DELETE: {
 939                 bool const tc = bv->buffer().params().track_changes;
 940                 if (cur.selection()) {
 941                         // If there is a selection, a tab (if present) is removed from
 942                         // the beginning of each paragraph.
 943                         cur.recordUndoSelection();
 944                         pit_type const pit_end = cur.selEnd().pit();
 945                         for (pit_type pit = cur.selBegin().pit(); pit <= pit_end; pit++) {
 946                                 Paragraph & par = paragraphs()[pit];
 947                                 if (par.empty())
 948                                         continue;
 949                                 char_type const c = par.getChar(0);
 950                                 if (c == '\t' || c == ' ') {
 951                                         // remove either 1 tab or 4 spaces.
 952                                         int const n = (c == ' ' ? 4 : 1);
 953                                         for (int i = 0; i < n
 954                                                   && !par.empty() && par.getChar(0) == c; ++i) {
 955                                                 if (cur.pit() == pit)
 956                                                         cur.posBackward();
 957                                                 if (cur.realAnchor().pit() == pit
 958                                                           && cur.realAnchor().pos() > 0 )
 959                                                         cur.realAnchor().backwardPos();
 960                                                 par.eraseChar(0, tc);
 961                                         }
 962                                 }
 963                         }
 964                         cur.finishUndo();
 965                 } else {
 966                         // If there is no selection, try to remove a tab or some spaces
 967                         // before the position of the cursor.
 968                         Paragraph & par = paragraphs()[cur.pit()];
 969                         pos_type const pos = cur.pos();
 970
 971                         if (pos == 0)
 972                                 break;
 973
 974                         char_type const c = par.getChar(pos - 1);
 975                         cur.recordUndo();
 976                         if (c == '\t') {
 977                                 cur.posBackward();
 978                                 par.eraseChar(cur.pos(), tc);
 979                         } else
 980                                 for (int n_spaces = 0;
 981                                      cur.pos() > 0
 982                                              && par.getChar(cur.pos() - 1) == ' '
 983                                              && n_spaces < 4;
 984                                      ++n_spaces) {
 985                                         cur.posBackward();
 986                                         par.eraseChar(cur.pos(), tc);
 987                                 }
 988                         cur.finishUndo();
 989                 }
 990                 break;
 991         }
 992
 993         case LFUN_CHAR_DELETE_FORWARD:
 994                 if (!cur.selection()) {
 995                         bool was_separator = cur.paragraph().isEnvSeparator(cur.pos());
 996                         if (cur.pos() == cur.paragraph().size())
 997                                 // Par boundary, force full-screen update
 998                                 singleParUpdate = false;
 999                         needsUpdate |= erase(cur);
1000                         cur.resetAnchor();
1001                         if (was_separator && cur.pos() == cur.paragraph().size()
1002                             && (!cur.paragraph().layout().isEnvironment()
1003                                 || cur.paragraph().size() > 0)) {
1004                                 // Force full-screen update
1005                                 singleParUpdate = false;
1006                                 needsUpdate |= erase(cur);
1007                                 cur.resetAnchor();
1008                         }
1009                         // It is possible to make it a lot faster still
1010                         // just comment out the line below...
1011                 } else {
1012                         cutSelection(cur, true, false);
1013                         singleParUpdate = false;
1014                 }
1015                 moveCursor(cur, false);
1016                 break;
1017
1018         case LFUN_CHAR_DELETE_BACKWARD:
1019                 if (!cur.selection()) {
1020                         if (bv->getIntl().getTransManager().backspace()) {
1021                                 bool par_boundary = cur.pos() == 0;
1022                                 // Par boundary, full-screen update
1023                                 if (par_boundary)
1024                                         singleParUpdate = false;
1025                                 needsUpdate |= backspace(cur);
1026                                 cur.resetAnchor();
1027                                 if (par_boundary && cur.pos() > 0
1028                                     && cur.paragraph().isEnvSeparator(cur.pos() - 1)) {
1029                                         needsUpdate |= backspace(cur);
1030                                         cur.resetAnchor();
1031                                 }
1032                                 // It is possible to make it a lot faster still
1033                                 // just comment out the line below...
1034                         }
1035                 } else {
1036                         cutSelection(cur, true, false);
1037                         singleParUpdate = false;
1038                 }
1039                 break;
1040
1041         case LFUN_PARAGRAPH_BREAK: {
1042                 cap::replaceSelection(cur);
1043                 pit_type pit = cur.pit();
1044                 Paragraph const & par = pars_[pit];
1045                 pit_type prev = pit;
1046                 if (pit > 0) {
1047                         if (!pars_[pit - 1].layout().isEnvironment())
1048                                 prev = depthHook(pit, par.getDepth());
1049                         else if (pars_[pit - 1].getDepth() >= par.getDepth())
1050                                 prev = pit - 1;
1051                 }
1052                 if (prev < pit && cur.pos() == par.beginOfBody()
1053                     && !par.isEnvSeparator(cur.pos())
1054                     && !par.layout().isCommand()
1055                     && pars_[prev].layout() != par.layout()
1056                     && pars_[prev].layout().isEnvironment()) {
1057                         if (par.layout().isEnvironment()
1058                             && pars_[prev].getDepth() == par.getDepth()) {
1059                                 docstring const layout = par.layout().name();
1060                                 DocumentClass const & tc = bv->buffer().params().documentClass();
1061                                 lyx::dispatch(FuncRequest(LFUN_LAYOUT, tc.plainLayout().name()));
1062                                 lyx::dispatch(FuncRequest(LFUN_SEPARATOR_INSERT, "parbreak"));
1063                                 lyx::dispatch(FuncRequest(LFUN_PARAGRAPH_BREAK, "inverse"));
1064                                 lyx::dispatch(FuncRequest(LFUN_LAYOUT, layout));
1065                         } else {
1066                                 lyx::dispatch(FuncRequest(LFUN_SEPARATOR_INSERT, "parbreak"));
1067                                 breakParagraph(cur);
1068                         }
1069                         Font const f(inherit_font, cur.current_font.language());
1070                         pars_[cur.pit() - 1].resetFonts(f);
1071                 } else {
1072                         breakParagraph(cur, cmd.argument() == "inverse");
1073                 }
1074                 cur.resetAnchor();
1075                 break;
1076         }
1077
1078         case LFUN_INSET_INSERT: {
1079                 cur.recordUndo();
1080
1081                 // We have to avoid triggering InstantPreview loading
1082                 // before inserting into the document. See bug #5626.
1083                 bool loaded = bv->buffer().isFullyLoaded();
1084                 bv->buffer().setFullyLoaded(false);
1085                 Inset * inset = createInset(&bv->buffer(), cmd);
1086                 bv->buffer().setFullyLoaded(loaded);
1087
1088                 if (inset) {
1089                         // FIXME (Abdel 01/02/2006):
1090                         // What follows would be a partial fix for bug 2154:
1091                         //   http://www.lyx.org/trac/ticket/2154
1092                         // This automatically put the label inset _after_ a
1093                         // numbered section. It should be possible to extend the mechanism
1094                         // to any kind of LateX environement.
1095                         // The correct way to fix that bug would be at LateX generation.
1096                         // I'll let the code here for reference as it could be used for some
1097                         // other feature like "automatic labelling".
1098                         /*
1099                         Paragraph & par = pars_[cur.pit()];
1100                         if (inset->lyxCode() == LABEL_CODE
1101                                 && !par.layout().counter.empty() {
1102                                 // Go to the end of the paragraph
1103                                 // Warning: Because of Change-Tracking, the last
1104                                 // position is 'size()' and not 'size()-1':
1105                                 cur.pos() = par.size();
1106                                 // Insert a new paragraph
1107                                 FuncRequest fr(LFUN_BREAK_PARAGRAPH);
1108                                 dispatch(cur, fr);
1109                         }
1110                         */
1111                         if (cur.selection())
1112                                 cutSelection(cur, true, false);
1113                         cur.insert(inset);
1114                         if (inset->editable() && inset->asInsetText())
1115                                 inset->edit(cur, true);
1116                         else
1117                                 cur.posForward();
1118
1119                         // trigger InstantPreview now
1120                         if (inset->lyxCode() == EXTERNAL_CODE) {
1121                                 InsetExternal & ins =
1122                                         static_cast<InsetExternal &>(*inset);
1123                                 ins.updatePreview();
1124                         }
1125                 }
1126
1127                 break;
1128         }
1129
1130         case LFUN_INSET_DISSOLVE: {
1131                 if (dissolveInset(cur)) {
1132                         needsUpdate = true;
1133                         cur.forceBufferUpdate();
1134                 }
1135                 break;
1136         }
1137
1138         case LFUN_SET_GRAPHICS_GROUP: {
1139                 InsetGraphics * ins = graphics::getCurrentGraphicsInset(cur);
1140                 if (!ins)
1141                         break;
1142
1143                 cur.recordUndo();
1144
1145                 string id = to_utf8(cmd.argument());
1146                 string grp = graphics::getGroupParams(bv->buffer(), id);
1147                 InsetGraphicsParams tmp, inspar = ins->getParams();
1148
1149                 if (id.empty())
1150                         inspar.groupId = to_utf8(cmd.argument());
1151                 else {
1152                         InsetGraphics::string2params(grp, bv->buffer(), tmp);
1153                         tmp.filename = inspar.filename;
1154                         inspar = tmp;
1155                 }
1156
1157                 ins->setParams(inspar);
1158         }
1159
1160         case LFUN_SPACE_INSERT:
1161                 if (cur.paragraph().layout().free_spacing)
1162                         insertChar(cur, ' ');
1163                 else {
1164                         doInsertInset(cur, this, cmd, false, false);
1165                         cur.posForward();
1166                 }
1167                 moveCursor(cur, false);
1168                 break;
1169
1170         case LFUN_SPECIALCHAR_INSERT: {
1171                 string const name = to_utf8(cmd.argument());
1172                 if (name == "hyphenation")
1173                         specialChar(cur, InsetSpecialChar::HYPHENATION);
1174                 else if (name == "ligature-break")
1175                         specialChar(cur, InsetSpecialChar::LIGATURE_BREAK);
1176                 else if (name == "slash")
1177                         specialChar(cur, InsetSpecialChar::SLASH);
1178                 else if (name == "nobreakdash")
1179                         specialChar(cur, InsetSpecialChar::NOBREAKDASH);
1180                 else if (name == "dots")
1181                         specialChar(cur, InsetSpecialChar::LDOTS);
1182                 else if (name == "end-of-sentence")
1183                         specialChar(cur, InsetSpecialChar::END_OF_SENTENCE);
1184                 else if (name == "menu-separator")
1185                         specialChar(cur, InsetSpecialChar::MENU_SEPARATOR);
1186                 else if (name.empty())
1187                         lyxerr << "LyX function 'specialchar-insert' needs an argument." << endl;
1188                 else
1189                         lyxerr << "Wrong argument for LyX function 'specialchar-insert'." << endl;
1190                 break;
1191         }
1192
1193         case LFUN_IPAMACRO_INSERT: {
1194                 string const arg = cmd.getArg(0);
1195                 if (arg == "deco") {
1196                         // Open the inset, and move the current selection
1197                         // inside it.
1198                         doInsertInset(cur, this, cmd, true, true);
1199                         cur.posForward();
1200                         // Some insets are numbered, others are shown in the outline pane so
1201                         // let's update the labels and the toc backend.
1202                         cur.forceBufferUpdate();
1203                         break;
1204                 }
1205                 if (arg == "tone-falling")
1206                         ipaChar(cur, InsetIPAChar::TONE_FALLING);
1207                 else if (arg == "tone-rising")
1208                         ipaChar(cur, InsetIPAChar::TONE_RISING);
1209                 else if (arg == "tone-high-rising")
1210                         ipaChar(cur, InsetIPAChar::TONE_HIGH_RISING);
1211                 else if (arg == "tone-low-rising")
1212                         ipaChar(cur, InsetIPAChar::TONE_LOW_RISING);
1213                 else if (arg == "tone-high-rising-falling")
1214                         ipaChar(cur, InsetIPAChar::TONE_HIGH_RISING_FALLING);
1215                 else if (arg.empty())
1216                         lyxerr << "LyX function 'ipamacro-insert' needs an argument." << endl;
1217                 else
1218                         lyxerr << "Wrong argument for LyX function 'ipamacro-insert'." << endl;
1219                 break;
1220         }
1221
1222         case LFUN_WORD_UPCASE:
1223                 changeCase(cur, text_uppercase);
1224                 break;
1225
1226         case LFUN_WORD_LOWCASE:
1227                 changeCase(cur, text_lowercase);
1228                 break;
1229
1230         case LFUN_WORD_CAPITALIZE:
1231                 changeCase(cur, text_capitalization);
1232                 break;
1233
1234         case LFUN_CHARS_TRANSPOSE:
1235                 charsTranspose(cur);
1236                 break;
1237
1238         case LFUN_PASTE: {
1239                 cur.message(_("Paste"));
1240                 LASSERT(cur.selBegin().idx() == cur.selEnd().idx(), break);
1241                 cap::replaceSelection(cur);
1242
1243                 // without argument?
1244                 string const arg = to_utf8(cmd.argument());
1245                 if (arg.empty()) {
1246                         bool tryGraphics = true;
1247                         if (theClipboard().isInternal())
1248                                 pasteFromStack(cur, bv->buffer().errorList("Paste"), 0);
1249                         else if (theClipboard().hasTextContents()) {
1250                                 if (pasteClipboardText(cur, bv->buffer().errorList("Paste"),
1251                                                        true, Clipboard::AnyTextType))
1252                                         tryGraphics = false;
1253                         }
1254                         if (tryGraphics && theClipboard().hasGraphicsContents())
1255                                 pasteClipboardGraphics(cur, bv->buffer().errorList("Paste"));
1256                 } else if (isStrUnsignedInt(arg)) {
1257                         // we have a numerical argument
1258                         pasteFromStack(cur, bv->buffer().errorList("Paste"),
1259                                        convert<unsigned int>(arg));
1260                 } else if (arg == "html" || arg == "latex") {
1261                         Clipboard::TextType type = (arg == "html") ?
1262                                 Clipboard::HtmlTextType : Clipboard::LaTeXTextType;
1263                         pasteClipboardText(cur, bv->buffer().errorList("Paste"), true, type);
1264                 } else {
1265                         Clipboard::GraphicsType type = Clipboard::AnyGraphicsType;
1266                         if (arg == "pdf")
1267                                 type = Clipboard::PdfGraphicsType;
1268                         else if (arg == "png")
1269                                 type = Clipboard::PngGraphicsType;
1270                         else if (arg == "jpeg")
1271                                 type = Clipboard::JpegGraphicsType;
1272                         else if (arg == "linkback")
1273                                 type = Clipboard::LinkBackGraphicsType;
1274                         else if (arg == "emf")
1275                                 type = Clipboard::EmfGraphicsType;
1276                         else if (arg == "wmf")
1277                                 type = Clipboard::WmfGraphicsType;
1278                         else
1279                                 // We used to assert, but couldn't the argument come from, say, the
1280                                 // minibuffer and just be mistyped?
1281                                 LYXERR0("Unrecognized graphics type: " << arg);
1282
1283                         pasteClipboardGraphics(cur, bv->buffer().errorList("Paste"), type);
1284                 }
1285
1286                 bv->buffer().errors("Paste");
1287                 cur.clearSelection(); // bug 393
1288                 cur.finishUndo();
1289                 break;
1290         }
1291
1292         case LFUN_CUT:
1293                 cutSelection(cur, true, true);
1294                 cur.message(_("Cut"));
1295                 break;
1296
1297         case LFUN_COPY:
1298                 copySelection(cur);
1299                 cur.message(_("Copy"));
1300                 break;
1301
1302         case LFUN_SERVER_GET_XY:
1303                 cur.message(from_utf8(
1304                         convert<string>(tm->cursorX(cur.top(), cur.boundary()))
1305                         + ' ' + convert<string>(tm->cursorY(cur.top(), cur.boundary()))));
1306                 break;
1307
1308         case LFUN_SERVER_SET_XY: {
1309                 int x = 0;
1310                 int y = 0;
1311                 istringstream is(to_utf8(cmd.argument()));
1312                 is >> x >> y;
1313                 if (!is)
1314                         lyxerr << "SETXY: Could not parse coordinates in '"
1315                                << to_utf8(cmd.argument()) << endl;
1316                 else
1317                         tm->setCursorFromCoordinates(cur, x, y);
1318                 break;
1319         }
1320
1321         case LFUN_SERVER_GET_LAYOUT:
1322                 cur.message(cur.paragraph().layout().name());
1323                 break;
1324
1325         case LFUN_LAYOUT: {
1326                 docstring layout = cmd.argument();
1327                 LYXERR(Debug::INFO, "LFUN_LAYOUT: (arg) " << to_utf8(layout));
1328
1329                 Paragraph const & para = cur.paragraph();
1330                 docstring const old_layout = para.layout().name();
1331                 DocumentClass const & tclass = bv->buffer().params().documentClass();
1332
1333                 if (layout.empty())
1334                         layout = tclass.defaultLayoutName();
1335
1336                 if (owner_->forcePlainLayout())
1337                         // in this case only the empty layout is allowed
1338                         layout = tclass.plainLayoutName();
1339                 else if (para.usePlainLayout()) {
1340                         // in this case, default layout maps to empty layout
1341                         if (layout == tclass.defaultLayoutName())
1342                                 layout = tclass.plainLayoutName();
1343                 } else {
1344                         // otherwise, the empty layout maps to the default
1345                         if (layout == tclass.plainLayoutName())
1346                                 layout = tclass.defaultLayoutName();
1347                 }
1348
1349                 bool hasLayout = tclass.hasLayout(layout);
1350
1351                 // If the entry is obsolete, use the new one instead.
1352                 if (hasLayout) {
1353                         docstring const & obs = tclass[layout].obsoleted_by();
1354                         if (!obs.empty())
1355                                 layout = obs;
1356                 }
1357
1358                 if (!hasLayout) {
1359                         cur.errorMessage(from_utf8(N_("Layout ")) + cmd.argument() +
1360                                 from_utf8(N_(" not known")));
1361                         break;
1362                 }
1363
1364                 bool change_layout = (old_layout != layout);
1365
1366                 if (!change_layout && cur.selection() &&
1367                         cur.selBegin().pit() != cur.selEnd().pit())
1368                 {
1369                         pit_type spit = cur.selBegin().pit();
1370                         pit_type epit = cur.selEnd().pit() + 1;
1371                         while (spit != epit) {
1372                                 if (pars_[spit].layout().name() != old_layout) {
1373                                         change_layout = true;
1374                                         break;
1375                                 }
1376                                 ++spit;
1377                         }
1378                 }
1379
1380                 if (change_layout)
1381                         setLayout(cur, layout);
1382
1383                 Layout::LaTeXArgMap args = tclass[layout].args();
1384                 Layout::LaTeXArgMap::const_iterator lait = args.begin();
1385                 Layout::LaTeXArgMap::const_iterator const laend = args.end();
1386                 for (; lait != laend; ++lait) {
1387                         Layout::latexarg arg = (*lait).second;
1388                         if (arg.autoinsert) {
1389                                 FuncRequest cmd(LFUN_ARGUMENT_INSERT, (*lait).first);
1390                                 lyx::dispatch(cmd);
1391                         }
1392                 }
1393
1394                 break;
1395         }
1396
1397         case LFUN_ENVIRONMENT_SPLIT: {
1398                 bool const outer = cmd.argument() == "outer";
1399                 Paragraph const & para = cur.paragraph();
1400                 docstring layout = para.layout().name();
1401                 depth_type split_depth = cur.paragraph().params().depth();
1402                 if (outer) {
1403                         // check if we have an environment in our nesting hierarchy
1404                         pit_type pit = cur.pit();
1405                         Paragraph cpar = pars_[pit];
1406                         while (true) {
1407                                 if (pit == 0 || cpar.params().depth() == 0)
1408                                         break;
1409                                 --pit;
1410                                 cpar = pars_[pit];
1411                                 if (cpar.params().depth() < split_depth
1412                                     && cpar.layout().isEnvironment()) {
1413                                                 layout = cpar.layout().name();
1414                                                 split_depth = cpar.params().depth();
1415                                 }
1416                         }
1417                 }
1418                 if (cur.pos() > 0)
1419                         lyx::dispatch(FuncRequest(LFUN_PARAGRAPH_BREAK));
1420                 if (outer) {
1421                         while (cur.paragraph().params().depth() > split_depth)
1422                                 lyx::dispatch(FuncRequest(LFUN_DEPTH_DECREMENT));
1423                 }
1424                 DocumentClass const & tc = bv->buffer().params().documentClass();
1425                 lyx::dispatch(FuncRequest(LFUN_LAYOUT, tc.plainLayout().name()));
1426                 lyx::dispatch(FuncRequest(LFUN_SEPARATOR_INSERT, "plain"));
1427                 lyx::dispatch(FuncRequest(LFUN_PARAGRAPH_BREAK, "inverse"));
1428                 lyx::dispatch(FuncRequest(LFUN_LAYOUT, layout));
1429
1430                 break;
1431         }
1432
1433         case LFUN_CLIPBOARD_PASTE:
1434                 cap::replaceSelection(cur);
1435                 pasteClipboardText(cur, bv->buffer().errorList("Paste"),
1436                                cmd.argument() == "paragraph");
1437                 bv->buffer().errors("Paste");
1438                 break;
1439
1440         case LFUN_CLIPBOARD_PASTE_SIMPLE:
1441                 cap::replaceSelection(cur);
1442                 pasteSimpleText(cur, cmd.argument() == "paragraph");
1443                 break;
1444
1445         case LFUN_PRIMARY_SELECTION_PASTE:
1446                 cap::replaceSelection(cur);
1447                 pasteString(cur, theSelection().get(),
1448                             cmd.argument() == "paragraph");
1449                 break;
1450
1451         case LFUN_SELECTION_PASTE:
1452                 // Copy the selection buffer to the clipboard stack,
1453                 // because we want it to appear in the "Edit->Paste
1454                 // recent" menu.
1455                 cap::replaceSelection(cur);
1456                 cap::copySelectionToStack();
1457                 cap::pasteSelection(bv->cursor(), bv->buffer().errorList("Paste"));
1458                 bv->buffer().errors("Paste");
1459                 break;
1460
1461         case LFUN_UNICODE_INSERT: {
1462                 if (cmd.argument().empty())
1463                         break;
1464                 docstring hexstring = cmd.argument();
1465                 if (isHex(hexstring)) {
1466                         char_type c = hexToInt(hexstring);
1467                         if (c >= 32 && c < 0x10ffff) {
1468                                 lyxerr << "Inserting c: " << c << endl;
1469                                 docstring s = docstring(1, c);
1470                                 lyx::dispatch(FuncRequest(LFUN_SELF_INSERT, s));
1471                         }
1472                 }
1473                 break;
1474         }
1475
1476         case LFUN_QUOTE_INSERT: {
1477                 cap::replaceSelection(cur);
1478                 cur.recordUndo();
1479
1480                 Paragraph const & par = cur.paragraph();
1481                 pos_type pos = cur.pos();
1482                 // Ignore deleted text before cursor
1483                 while (pos > 0 && par.isDeleted(pos - 1))
1484                         --pos;
1485
1486                 BufferParams const & bufparams = bv->buffer().params();
1487                 bool const hebrew =
1488                         par.getFontSettings(bufparams, pos).language()->lang() == "hebrew";
1489                 bool const allow_inset_quote = !(par.isPassThru() || hebrew);
1490
1491                 string const arg = to_utf8(cmd.argument());
1492                 if (allow_inset_quote) {
1493                         char_type c = ' ';
1494                         if (pos > 0 && (!cur.prevInset() || !cur.prevInset()->isSpace()))
1495                                 c = par.getChar(pos - 1);
1496                         InsetQuotes::QuoteTimes const quote_type = (arg == "single")
1497                                 ? InsetQuotes::SingleQuotes : InsetQuotes::DoubleQuotes;
1498                         cur.insert(new InsetQuotes(cur.buffer(), c, quote_type));
1499                         cur.posForward();
1500                 } else {
1501                         // The cursor might have been invalidated by the replaceSelection.
1502                         cur.buffer()->changed(true);
1503                         string const quote_string = (arg == "single") ? "'" : "\"";
1504                         lyx::dispatch(FuncRequest(LFUN_SELF_INSERT, quote_string));
1505                 }
1506                 break;
1507         }
1508
1509         case LFUN_DATE_INSERT: {
1510                 string const format = cmd.argument().empty()
1511                         ? lyxrc.date_insert_format : to_utf8(cmd.argument());
1512                 string const time = formatted_time(current_time(), format);
1513                 lyx::dispatch(FuncRequest(LFUN_SELF_INSERT, time));
1514                 break;
1515         }
1516
1517         case LFUN_MOUSE_TRIPLE:
1518                 if (cmd.button() == mouse_button::button1) {
1519                         tm->cursorHome(cur);
1520                         cur.resetAnchor();
1521                         tm->cursorEnd(cur);
1522                         cur.setSelection();
1523                         bv->cursor() = cur;
1524                 }
1525                 break;
1526
1527         case LFUN_MOUSE_DOUBLE:
1528                 if (cmd.button() == mouse_button::button1) {
1529                         selectWord(cur, WHOLE_WORD);
1530                         bv->cursor() = cur;
1531                 }
1532                 break;
1533
1534         // Single-click on work area
1535         case LFUN_MOUSE_PRESS: {
1536                 // We are not marking a selection with the keyboard in any case.
1537                 Cursor & bvcur = cur.bv().cursor();
1538                 bvcur.setMark(false);
1539                 switch (cmd.button()) {
1540                 case mouse_button::button1:
1541                         // Set the cursor
1542                         if (!bv->mouseSetCursor(cur, cmd.argument() == "region-select"))
1543                                 cur.screenUpdateFlags(Update::SinglePar | Update::FitCursor);
1544                         if (bvcur.wordSelection())
1545                                 selectWord(bvcur, WHOLE_WORD);
1546                         break;
1547
1548                 case mouse_button::button2:
1549                         // Middle mouse pasting.
1550                         bv->mouseSetCursor(cur);
1551                         lyx::dispatch(
1552                                 FuncRequest(LFUN_COMMAND_ALTERNATIVES,
1553                                             "selection-paste ; primary-selection-paste paragraph"));
1554                         cur.noScreenUpdate();
1555                         break;
1556
1557                 case mouse_button::button3: {
1558                         // Don't do anything if we right-click a
1559                         // selection, a context menu will popup.
1560                         if (bvcur.selection() && cur >= bvcur.selectionBegin()
1561                             && cur < bvcur.selectionEnd()) {
1562                                 cur.noScreenUpdate();
1563                                 return;
1564                         }
1565                         if (!bv->mouseSetCursor(cur, false))
1566                                 cur.screenUpdateFlags(Update::SinglePar | Update::FitCursor);
1567                         break;
1568                 }
1569
1570                 default:
1571                         break;
1572                 } // switch (cmd.button())
1573                 break;
1574         }
1575         case LFUN_MOUSE_MOTION: {
1576                 // Mouse motion with right or middle mouse do nothing for now.
1577                 if (cmd.button() != mouse_button::button1) {
1578                         cur.noScreenUpdate();
1579                         return;
1580                 }
1581                 // ignore motions deeper nested than the real anchor
1582                 Cursor & bvcur = cur.bv().cursor();
1583                 if (!bvcur.realAnchor().hasPart(cur)) {
1584                         cur.undispatched();
1585                         break;
1586                 }
1587                 CursorSlice old = bvcur.top();
1588
1589                 int const wh = bv->workHeight();
1590                 int const y = max(0, min(wh - 1, cmd.y()));
1591
1592                 tm->setCursorFromCoordinates(cur, cmd.x(), y);
1593                 cur.setTargetX(cmd.x());
1594                 if (cmd.y() >= wh)
1595                         lyx::dispatch(FuncRequest(LFUN_DOWN_SELECT));
1596                 else if (cmd.y() < 0)
1597                         lyx::dispatch(FuncRequest(LFUN_UP_SELECT));
1598                 // This is to allow jumping over large insets
1599                 if (cur.top() == old) {
1600                         if (cmd.y() >= wh)
1601                                 lyx::dispatch(FuncRequest(LFUN_DOWN_SELECT));
1602                         else if (cmd.y() < 0)
1603                                 lyx::dispatch(FuncRequest(LFUN_UP_SELECT));
1604                 }
1605                 // We continue with our existing selection or start a new one, so don't
1606                 // reset the anchor.
1607                 bvcur.setCursor(cur);
1608                 bvcur.setSelection(true);
1609                 if (cur.top() == old) {
1610                         // We didn't move one iota, so no need to update the screen.
1611                         cur.screenUpdateFlags(Update::SinglePar | Update::FitCursor);
1612                         //cur.noScreenUpdate();
1613                         return;
1614                 }
1615                 break;
1616         }
1617
1618         case LFUN_MOUSE_RELEASE:
1619                 switch (cmd.button()) {
1620                 case mouse_button::button1:
1621                         // Cursor was set at LFUN_MOUSE_PRESS or LFUN_MOUSE_MOTION time.
1622                         // If there is a new selection, update persistent selection;
1623                         // otherwise, single click does not clear persistent selection
1624                         // buffer.
1625                         if (cur.selection()) {
1626                                 // Finish selection. If double click,
1627                                 // cur is moved to the end of word by
1628                                 // selectWord but bvcur is current
1629                                 // mouse position.
1630                                 cur.bv().cursor().setSelection();
1631                                 // We might have removed an empty but drawn selection
1632                                 // (probably a margin)
1633                                 cur.screenUpdateFlags(Update::SinglePar | Update::FitCursor);
1634                         } else
1635                                 cur.noScreenUpdate();
1636                         // FIXME: We could try to handle drag and drop of selection here.
1637                         return;
1638
1639                 case mouse_button::button2:
1640                         // Middle mouse pasting is handled at mouse press time,
1641                         // see LFUN_MOUSE_PRESS.
1642                         cur.noScreenUpdate();
1643                         return;
1644
1645                 case mouse_button::button3:
1646                         // Cursor was set at LFUN_MOUSE_PRESS time.
1647                         // FIXME: If there is a selection we could try to handle a special
1648                         // drag & drop context menu.
1649                         cur.noScreenUpdate();
1650                         return;
1651
1652                 case mouse_button::none:
1653                 case mouse_button::button4:
1654                 case mouse_button::button5:
1655                         break;
1656                 } // switch (cmd.button())
1657
1658                 break;
1659
1660         case LFUN_SELF_INSERT: {
1661                 if (cmd.argument().empty())
1662                         break;
1663
1664                 // Automatically delete the currently selected
1665                 // text and replace it with what is being
1666                 // typed in now. Depends on lyxrc settings
1667                 // "auto_region_delete", which defaults to
1668                 // true (on).
1669
1670                 if (lyxrc.auto_region_delete && cur.selection())
1671                         cutSelection(cur, false, false);
1672
1673                 cur.clearSelection();
1674
1675                 docstring::const_iterator cit = cmd.argument().begin();
1676                 docstring::const_iterator const end = cmd.argument().end();
1677                 for (; cit != end; ++cit)
1678                         bv->translateAndInsert(*cit, this, cur);
1679
1680                 cur.resetAnchor();
1681                 moveCursor(cur, false);
1682                 cur.markNewWordPosition();
1683                 bv->bookmarkEditPosition();
1684                 break;
1685         }
1686
1687         case LFUN_HREF_INSERT: {
1688                 // FIXME If we're actually given an argument, shouldn't
1689                 // we use it, whether or not we have a selection?
1690                 docstring content = cmd.argument();
1691                 if (cur.selection()) {
1692                         content = cur.selectionAsString(false);
1693                         cutSelection(cur, true, false);
1694                 }
1695
1696                 InsetCommandParams p(HYPERLINK_CODE);
1697                 if (!content.empty()){
1698                         // if it looks like a link, we'll put it as target,
1699                         // otherwise as name (bug #8792).
1700
1701                         // We can't do:
1702                         //   regex_match(to_utf8(content), matches, link_re)
1703                         // because smatch stores pointers to the substrings rather
1704                         // than making copies of them. And those pointers become
1705                         // invalid after regex_match returns, since it is then
1706                         // being given a temporary object. (Thanks to Georg for
1707                         // figuring that out.)
1708                         regex const link_re("^([a-z]+):.*");
1709                         smatch matches;
1710                         string const c = to_utf8(lowercase(content));
1711
1712                         if (c.substr(0,7) == "mailto:") {
1713                                 p["target"] = content;
1714                                 p["type"] = from_ascii("mailto:");
1715                         } else if (regex_match(c, matches, link_re)) {
1716                                 p["target"] = content;
1717                                 string protocol = matches.str(1);
1718                                 if (protocol == "file")
1719                                         p["type"] = from_ascii("file:");
1720                         } else
1721                                 p["name"] = content;
1722                 }
1723                 string const data = InsetCommand::params2string(p);
1724
1725                 // we need to have a target. if we already have one, then
1726                 // that gets used at the default for the name, too, which
1727                 // is probably what is wanted.
1728                 if (p["target"].empty()) {
1729                         bv->showDialog("href", data);
1730                 } else {
1731                         FuncRequest fr(LFUN_INSET_INSERT, data);
1732                         dispatch(cur, fr);
1733                 }
1734                 break;
1735         }
1736
1737         case LFUN_LABEL_INSERT: {
1738                 InsetCommandParams p(LABEL_CODE);
1739                 // Try to generate a valid label
1740                 p["name"] = (cmd.argument().empty()) ?
1741                         cur.getPossibleLabel() :
1742                         cmd.argument();
1743                 string const data = InsetCommand::params2string(p);
1744
1745                 if (cmd.argument().empty()) {
1746                         bv->showDialog("label", data);
1747                 } else {
1748                         FuncRequest fr(LFUN_INSET_INSERT, data);
1749                         dispatch(cur, fr);
1750                 }
1751                 break;
1752         }
1753
1754         case LFUN_INFO_INSERT: {
1755                 Inset * inset;
1756                 if (cmd.argument().empty() && cur.selection()) {
1757                         // if command argument is empty use current selection as parameter.
1758                         docstring ds = cur.selectionAsString(false);
1759                         cutSelection(cur, true, false);
1760                         FuncRequest cmd0(cmd, ds);
1761                         inset = createInset(cur.buffer(), cmd0);
1762                 } else {
1763                         inset = createInset(cur.buffer(), cmd);
1764                 }
1765                 if (!inset)
1766                         break;
1767                 cur.recordUndo();
1768                 insertInset(cur, inset);
1769                 cur.posForward();
1770                 break;
1771         }
1772         case LFUN_CAPTION_INSERT:
1773         case LFUN_FOOTNOTE_INSERT:
1774         case LFUN_NOTE_INSERT:
1775         case LFUN_BOX_INSERT:
1776         case LFUN_BRANCH_INSERT:
1777         case LFUN_PHANTOM_INSERT:
1778         case LFUN_ERT_INSERT:
1779         case LFUN_LISTING_INSERT:
1780         case LFUN_MARGINALNOTE_INSERT:
1781         case LFUN_ARGUMENT_INSERT:
1782         case LFUN_INDEX_INSERT:
1783         case LFUN_PREVIEW_INSERT:
1784         case LFUN_SCRIPT_INSERT:
1785         case LFUN_IPA_INSERT:
1786                 // Open the inset, and move the current selection
1787                 // inside it.
1788                 doInsertInset(cur, this, cmd, true, true);
1789                 cur.posForward();
1790                 // Some insets are numbered, others are shown in the outline pane so
1791                 // let's update the labels and the toc backend.
1792                 cur.forceBufferUpdate();
1793                 break;
1794
1795         case LFUN_FLEX_INSERT: {
1796                 // Open the inset, and move the current selection
1797                 // inside it.
1798                 bool const sel = cur.selection();
1799                 doInsertInset(cur, this, cmd, true, true);
1800                 // Insert auto-insert arguments
1801                 bool autoargs = false;
1802                 Layout::LaTeXArgMap args = cur.inset().getLayout().latexargs();
1803                 Layout::LaTeXArgMap::const_iterator lait = args.begin();
1804                 Layout::LaTeXArgMap::const_iterator const laend = args.end();
1805                 for (; lait != laend; ++lait) {
1806                         Layout::latexarg arg = (*lait).second;
1807                         if (arg.autoinsert) {
1808                                 // The cursor might have been invalidated by the replaceSelection.
1809                                 cur.buffer()->changed(true);
1810                                 FuncRequest cmd(LFUN_ARGUMENT_INSERT, (*lait).first);
1811                                 lyx::dispatch(cmd);
1812                                 autoargs = true;
1813                         }
1814                 }
1815                 if (!autoargs) {
1816                         if (sel)
1817                                 cur.leaveInset(cur.inset());
1818                         cur.posForward();
1819                 }
1820                 // Some insets are numbered, others are shown in the outline pane so
1821                 // let's update the labels and the toc backend.
1822                 cur.forceBufferUpdate();
1823                 break;
1824         }
1825
1826         case LFUN_TABULAR_INSERT:
1827                 // if there were no arguments, just open the dialog
1828                 if (doInsertInset(cur, this, cmd, false, true))
1829                         cur.posForward();
1830                 else
1831                         bv->showDialog("tabularcreate");
1832
1833                 break;
1834
1835         case LFUN_FLOAT_INSERT:
1836         case LFUN_FLOAT_WIDE_INSERT:
1837         case LFUN_WRAP_INSERT: {
1838                 // will some content be moved into the inset?
1839                 bool const content = cur.selection();
1840                 // does the content consist of multiple paragraphs?
1841                 bool const singlepar = (cur.selBegin().pit() == cur.selEnd().pit());
1842
1843                 doInsertInset(cur, this, cmd, true, true);
1844                 cur.posForward();
1845
1846                 // If some single-par content is moved into the inset,
1847                 // doInsertInset puts the cursor outside the inset.
1848                 // To insert the caption we put it back into the inset.
1849                 // FIXME cleanup doInsertInset to avoid such dances!
1850                 if (content && singlepar)
1851                         cur.backwardPos();
1852
1853                 ParagraphList & pars = cur.text()->paragraphs();
1854
1855                 DocumentClass const & tclass = bv->buffer().params().documentClass();
1856
1857                 // add a separate paragraph for the caption inset
1858                 pars.push_back(Paragraph());
1859                 pars.back().setInsetOwner(&cur.text()->inset());
1860                 pars.back().setPlainOrDefaultLayout(tclass);
1861                 int cap_pit = pars.size() - 1;
1862
1863                 // if an empty inset was created, we create an additional empty
1864                 // paragraph at the bottom so that the user can choose where to put
1865                 // the graphics (or table).
1866                 if (!content) {
1867                         pars.push_back(Paragraph());
1868                         pars.back().setInsetOwner(&cur.text()->inset());
1869                         pars.back().setPlainOrDefaultLayout(tclass);
1870                 }
1871
1872                 // reposition the cursor to the caption
1873                 cur.pit() = cap_pit;
1874                 cur.pos() = 0;
1875                 // FIXME: This Text/Cursor dispatch handling is a mess!
1876                 // We cannot use Cursor::dispatch here it needs access to up to
1877                 // date metrics.
1878                 FuncRequest cmd_caption(LFUN_CAPTION_INSERT);
1879                 doInsertInset(cur, cur.text(), cmd_caption, true, false);
1880                 cur.forceBufferUpdate();
1881                 cur.screenUpdateFlags(Update::Force);
1882                 // FIXME: When leaving the Float (or Wrap) inset we should
1883                 // delete any empty paragraph left above or below the
1884                 // caption.
1885                 break;
1886         }
1887
1888         case LFUN_NOMENCL_INSERT: {
1889                 InsetCommandParams p(NOMENCL_CODE);
1890                 if (cmd.argument().empty())
1891                         p["symbol"] = bv->cursor().innerText()->getStringToIndex(bv->cursor());
1892                 else
1893                         p["symbol"] = cmd.argument();
1894                 string const data = InsetCommand::params2string(p);
1895                 bv->showDialog("nomenclature", data);
1896                 break;
1897         }
1898
1899         case LFUN_INDEX_PRINT: {
1900                 InsetCommandParams p(INDEX_PRINT_CODE);
1901                 if (cmd.argument().empty())
1902                         p["type"] = from_ascii("idx");
1903                 else
1904                         p["type"] = cmd.argument();
1905                 string const data = InsetCommand::params2string(p);
1906                 FuncRequest fr(LFUN_INSET_INSERT, data);
1907                 dispatch(cur, fr);
1908                 break;
1909         }
1910
1911         case LFUN_NOMENCL_PRINT:
1912         case LFUN_NEWPAGE_INSERT:
1913                 // do nothing fancy
1914                 doInsertInset(cur, this, cmd, false, false);
1915                 cur.posForward();
1916                 break;
1917
1918         case LFUN_SEPARATOR_INSERT: {
1919                 doInsertInset(cur, this, cmd, false, false);
1920                 cur.posForward();
1921                 // remove a following space
1922                 Paragraph & par = cur.paragraph();
1923                 if (cur.pos() != cur.lastpos() && par.isLineSeparator(cur.pos()))
1924                     par.eraseChar(cur.pos(), cur.buffer()->params().track_changes);
1925                 break;
1926         }
1927
1928         case LFUN_DEPTH_DECREMENT:
1929                 changeDepth(cur, DEC_DEPTH);
1930                 break;
1931
1932         case LFUN_DEPTH_INCREMENT:
1933                 changeDepth(cur, INC_DEPTH);
1934                 break;
1935
1936         case LFUN_MATH_DISPLAY:
1937                 mathDispatch(cur, cmd, true);
1938                 break;
1939
1940         case LFUN_REGEXP_MODE:
1941                 regexpDispatch(cur, cmd);
1942                 break;
1943
1944         case LFUN_MATH_MODE:
1945                 if (cmd.argument() == "on")
1946                         // don't pass "on" as argument
1947                         // (it would appear literally in the first cell)
1948                         mathDispatch(cur, FuncRequest(LFUN_MATH_MODE), false);
1949                 else
1950                         mathDispatch(cur, cmd, false);
1951                 break;
1952
1953         case LFUN_MATH_MACRO:
1954                 if (cmd.argument().empty())
1955                         cur.errorMessage(from_utf8(N_("Missing argument")));
1956                 else {
1957                         cur.recordUndo();
1958                         string s = to_utf8(cmd.argument());
1959                         string const s1 = token(s, ' ', 1);
1960                         int const nargs = s1.empty() ? 0 : convert<int>(s1);
1961                         string const s2 = token(s, ' ', 2);
1962                         MacroType type = MacroTypeNewcommand;
1963                         if (s2 == "def")
1964                                 type = MacroTypeDef;
1965                         MathMacroTemplate * inset = new MathMacroTemplate(cur.buffer(),
1966                                 from_utf8(token(s, ' ', 0)), nargs, false, type);
1967                         inset->setBuffer(bv->buffer());
1968                         insertInset(cur, inset);
1969
1970                         // enter macro inset and select the name
1971                         cur.push(*inset);
1972                         cur.top().pos() = cur.top().lastpos();
1973                         cur.resetAnchor();
1974                         cur.setSelection(true);
1975                         cur.top().pos() = 0;
1976                 }
1977                 break;
1978
1979         // passthrough hat and underscore outside mathed:
1980         case LFUN_MATH_SUBSCRIPT:
1981                 mathDispatch(cur, FuncRequest(LFUN_SELF_INSERT, "_"), false);
1982                 break;
1983         case LFUN_MATH_SUPERSCRIPT:
1984                 mathDispatch(cur, FuncRequest(LFUN_SELF_INSERT, "^"), false);
1985                 break;
1986
1987         case LFUN_MATH_INSERT:
1988         case LFUN_MATH_AMS_MATRIX:
1989         case LFUN_MATH_MATRIX:
1990         case LFUN_MATH_DELIM:
1991         case LFUN_MATH_BIGDELIM: {
1992                 cur.recordUndo();
1993                 cap::replaceSelection(cur);
1994                 cur.insert(new InsetMathHull(cur.buffer(), hullSimple));
1995                 checkAndActivateInset(cur, true);
1996                 LASSERT(cur.inMathed(), break);
1997                 cur.dispatch(cmd);
1998                 break;
1999         }
2000
2001         case LFUN_FONT_EMPH: {
2002                 Font font(ignore_font, ignore_language);
2003                 font.fontInfo().setEmph(FONT_TOGGLE);
2004                 toggleAndShow(cur, this, font);
2005                 break;
2006         }
2007
2008         case LFUN_FONT_ITAL: {
2009                 Font font(ignore_font, ignore_language);
2010                 font.fontInfo().setShape(ITALIC_SHAPE);
2011                 toggleAndShow(cur, this, font);
2012                 break;
2013         }
2014
2015         case LFUN_FONT_BOLD:
2016         case LFUN_FONT_BOLDSYMBOL: {
2017                 Font font(ignore_font, ignore_language);
2018                 font.fontInfo().setSeries(BOLD_SERIES);
2019                 toggleAndShow(cur, this, font);
2020                 break;
2021         }
2022
2023         case LFUN_FONT_NOUN: {
2024                 Font font(ignore_font, ignore_language);
2025                 font.fontInfo().setNoun(FONT_TOGGLE);
2026                 toggleAndShow(cur, this, font);
2027                 break;
2028         }
2029
2030         case LFUN_FONT_TYPEWRITER: {
2031                 Font font(ignore_font, ignore_language);
2032                 font.fontInfo().setFamily(TYPEWRITER_FAMILY); // no good
2033                 toggleAndShow(cur, this, font);
2034                 break;
2035         }
2036
2037         case LFUN_FONT_SANS: {
2038                 Font font(ignore_font, ignore_language);
2039                 font.fontInfo().setFamily(SANS_FAMILY);
2040                 toggleAndShow(cur, this, font);
2041                 break;
2042         }
2043
2044         case LFUN_FONT_ROMAN: {
2045                 Font font(ignore_font, ignore_language);
2046                 font.fontInfo().setFamily(ROMAN_FAMILY);
2047                 toggleAndShow(cur, this, font);
2048                 break;
2049         }
2050
2051         case LFUN_FONT_DEFAULT: {
2052                 Font font(inherit_font, ignore_language);
2053                 toggleAndShow(cur, this, font);
2054                 break;
2055         }
2056
2057         case LFUN_FONT_STRIKEOUT: {
2058                 Font font(ignore_font, ignore_language);
2059                 font.fontInfo().setStrikeout(FONT_TOGGLE);
2060                 toggleAndShow(cur, this, font);
2061                 break;
2062         }
2063
2064         case LFUN_FONT_UNDERUNDERLINE: {
2065                 Font font(ignore_font, ignore_language);
2066                 font.fontInfo().setUuline(FONT_TOGGLE);
2067                 toggleAndShow(cur, this, font);
2068                 break;
2069         }
2070
2071         case LFUN_FONT_UNDERWAVE: {
2072                 Font font(ignore_font, ignore_language);
2073                 font.fontInfo().setUwave(FONT_TOGGLE);
2074                 toggleAndShow(cur, this, font);
2075                 break;
2076         }
2077
2078         case LFUN_FONT_UNDERLINE: {
2079                 Font font(ignore_font, ignore_language);
2080                 font.fontInfo().setUnderbar(FONT_TOGGLE);
2081                 toggleAndShow(cur, this, font);
2082                 break;
2083         }
2084
2085         case LFUN_FONT_SIZE: {
2086                 Font font(ignore_font, ignore_language);
2087                 setLyXSize(to_utf8(cmd.argument()), font.fontInfo());
2088                 toggleAndShow(cur, this, font);
2089                 break;
2090         }
2091
2092         case LFUN_LANGUAGE: {
2093                 string const lang_arg = cmd.getArg(0);
2094                 bool const reset = (lang_arg.empty() || lang_arg == "reset");
2095                 Language const * lang =
2096                         reset ? reset_language
2097                               : languages.getLanguage(lang_arg);
2098                 // we allow reset_language, which is 0, but only if it
2099                 // was requested via empty or "reset" arg.
2100                 if (!lang && !reset)
2101                         break;
2102                 bool const toggle = (cmd.getArg(1) != "set");
2103                 selectWordWhenUnderCursor(cur, WHOLE_WORD_STRICT);
2104                 Font font(ignore_font, lang);
2105                 toggleAndShow(cur, this, font, toggle);
2106                 break;
2107         }
2108
2109         case LFUN_TEXTSTYLE_APPLY:
2110                 toggleAndShow(cur, this, freefont, toggleall);
2111                 cur.message(_("Character set"));
2112                 break;
2113
2114         // Set the freefont using the contents of \param data dispatched from
2115         // the frontends and apply it at the current cursor location.
2116         case LFUN_TEXTSTYLE_UPDATE: {
2117                 Font font;
2118                 bool toggle;
2119                 if (font.fromString(to_utf8(cmd.argument()), toggle)) {
2120                         freefont = font;
2121                         toggleall = toggle;
2122                         toggleAndShow(cur, this, freefont, toggleall);
2123                         cur.message(_("Character set"));
2124                 } else {
2125                         lyxerr << "Argument not ok";
2126                 }
2127                 break;
2128         }
2129
2130         case LFUN_FINISHED_LEFT:
2131                 LYXERR(Debug::DEBUG, "handle LFUN_FINISHED_LEFT:\n" << cur);
2132                 // We're leaving an inset, going left. If the inset is LTR, we're
2133                 // leaving from the front, so we should not move (remain at --- but
2134                 // not in --- the inset). If the inset is RTL, move left, without
2135                 // entering the inset itself; i.e., move to after the inset.
2136                 if (cur.paragraph().getFontSettings(
2137                                 cur.bv().buffer().params(), cur.pos()).isRightToLeft())
2138                         cursorVisLeft(cur, true);
2139                 break;
2140
2141         case LFUN_FINISHED_RIGHT:
2142                 LYXERR(Debug::DEBUG, "handle LFUN_FINISHED_RIGHT:\n" << cur);
2143                 // We're leaving an inset, going right. If the inset is RTL, we're
2144                 // leaving from the front, so we should not move (remain at --- but
2145                 // not in --- the inset). If the inset is LTR, move right, without
2146                 // entering the inset itself; i.e., move to after the inset.
2147                 if (!cur.paragraph().getFontSettings(
2148                                 cur.bv().buffer().params(), cur.pos()).isRightToLeft())
2149                         cursorVisRight(cur, true);
2150                 break;
2151
2152         case LFUN_FINISHED_BACKWARD:
2153                 LYXERR(Debug::DEBUG, "handle LFUN_FINISHED_BACKWARD:\n" << cur);
2154                 break;
2155
2156         case LFUN_FINISHED_FORWARD:
2157                 LYXERR(Debug::DEBUG, "handle LFUN_FINISHED_FORWARD:\n" << cur);
2158                 ++cur.pos();
2159                 cur.setCurrentFont();
2160                 break;
2161
2162         case LFUN_LAYOUT_PARAGRAPH: {
2163                 string data;
2164                 params2string(cur.paragraph(), data);
2165                 data = "show\n" + data;
2166                 bv->showDialog("paragraph", data);
2167                 break;
2168         }
2169
2170         case LFUN_PARAGRAPH_UPDATE: {
2171                 string data;
2172                 params2string(cur.paragraph(), data);
2173
2174                 // Will the paragraph accept changes from the dialog?
2175                 bool const accept =
2176                         cur.inset().allowParagraphCustomization(cur.idx());
2177
2178                 data = "update " + convert<string>(accept) + '\n' + data;
2179                 bv->updateDialog("paragraph", data);
2180                 break;
2181         }
2182
2183         case LFUN_ACCENT_UMLAUT:
2184         case LFUN_ACCENT_CIRCUMFLEX:
2185         case LFUN_ACCENT_GRAVE:
2186         case LFUN_ACCENT_ACUTE:
2187         case LFUN_ACCENT_TILDE:
2188         case LFUN_ACCENT_CEDILLA:
2189         case LFUN_ACCENT_MACRON:
2190         case LFUN_ACCENT_DOT:
2191         case LFUN_ACCENT_UNDERDOT:
2192         case LFUN_ACCENT_UNDERBAR:
2193         case LFUN_ACCENT_CARON:
2194         case LFUN_ACCENT_BREVE:
2195         case LFUN_ACCENT_TIE:
2196         case LFUN_ACCENT_HUNGARIAN_UMLAUT:
2197         case LFUN_ACCENT_CIRCLE:
2198         case LFUN_ACCENT_OGONEK:
2199                 theApp()->handleKeyFunc(cmd.action());
2200                 if (!cmd.argument().empty())
2201                         // FIXME: Are all these characters encoded in one byte in utf8?
2202                         bv->translateAndInsert(cmd.argument()[0], this, cur);
2203                 cur.screenUpdateFlags(Update::FitCursor);
2204                 break;
2205
2206         case LFUN_FLOAT_LIST_INSERT: {
2207                 DocumentClass const & tclass = bv->buffer().params().documentClass();
2208                 if (tclass.floats().typeExist(to_utf8(cmd.argument()))) {
2209                         cur.recordUndo();
2210                         if (cur.selection())
2211                                 cutSelection(cur, true, false);
2212                         breakParagraph(cur);
2213
2214                         if (cur.lastpos() != 0) {
2215                                 cursorBackward(cur);
2216                                 breakParagraph(cur);
2217                         }
2218
2219                         docstring const laystr = cur.inset().usePlainLayout() ?
2220                                 tclass.plainLayoutName() :
2221                                 tclass.defaultLayoutName();
2222                         setLayout(cur, laystr);
2223                         ParagraphParameters p;
2224                         // FIXME If this call were replaced with one to clearParagraphParams(),
2225                         // then we could get rid of this method altogether.
2226                         setParagraphs(cur, p);
2227                         // FIXME This should be simplified when InsetFloatList takes a
2228                         // Buffer in its constructor.
2229                         InsetFloatList * ifl = new InsetFloatList(cur.buffer(), to_utf8(cmd.argument()));
2230                         ifl->setBuffer(bv->buffer());
2231                         insertInset(cur, ifl);
2232                         cur.posForward();
2233                 } else {
2234                         lyxerr << "Non-existent float type: "
2235                                << to_utf8(cmd.argument()) << endl;
2236                 }
2237                 break;
2238         }
2239
2240         case LFUN_CHANGE_ACCEPT: {
2241                 acceptOrRejectChanges(cur, ACCEPT);
2242                 break;
2243         }
2244
2245         case LFUN_CHANGE_REJECT: {
2246                 acceptOrRejectChanges(cur, REJECT);
2247                 break;
2248         }
2249
2250         case LFUN_THESAURUS_ENTRY: {
2251                 docstring arg = cmd.argument();
2252                 if (arg.empty()) {
2253                         arg = cur.selectionAsString(false);
2254                         // FIXME
2255                         if (arg.size() > 100 || arg.empty()) {
2256                                 // Get word or selection
2257                                 selectWordWhenUnderCursor(cur, WHOLE_WORD);
2258                                 arg = cur.selectionAsString(false);
2259                                 arg += " lang=" + from_ascii(cur.getFont().language()->lang());
2260                         }
2261                 }
2262                 bv->showDialog("thesaurus", to_utf8(arg));
2263                 break;
2264         }
2265
2266         case LFUN_SPELLING_ADD: {
2267                 docstring word = from_utf8(cmd.getArg(0));
2268                 Language * lang;
2269                 if (word.empty()) {
2270                         word = cur.selectionAsString(false);
2271                         // FIXME
2272                         if (word.size() > 100 || word.empty()) {
2273                                 // Get word or selection
2274                                 selectWordWhenUnderCursor(cur, WHOLE_WORD);
2275                                 word = cur.selectionAsString(false);
2276                         }
2277                         lang = const_cast<Language *>(cur.getFont().language());
2278                 } else
2279                         lang = const_cast<Language *>(languages.getLanguage(cmd.getArg(1)));
2280                 WordLangTuple wl(word, lang);
2281                 theSpellChecker()->insert(wl);
2282                 break;
2283         }
2284
2285         case LFUN_SPELLING_IGNORE: {
2286                 docstring word = from_utf8(cmd.getArg(0));
2287                 Language * lang;
2288                 if (word.empty()) {
2289                         word = cur.selectionAsString(false);
2290                         // FIXME
2291                         if (word.size() > 100 || word.empty()) {
2292                                 // Get word or selection
2293                                 selectWordWhenUnderCursor(cur, WHOLE_WORD);
2294                                 word = cur.selectionAsString(false);
2295                         }
2296                         lang = const_cast<Language *>(cur.getFont().language());
2297                 } else
2298                         lang = const_cast<Language *>(languages.getLanguage(cmd.getArg(1)));
2299                 WordLangTuple wl(word, lang);
2300                 theSpellChecker()->accept(wl);
2301                 break;
2302         }
2303
2304         case LFUN_SPELLING_REMOVE: {
2305                 docstring word = from_utf8(cmd.getArg(0));
2306                 Language * lang;
2307                 if (word.empty()) {
2308                         word = cur.selectionAsString(false);
2309                         // FIXME
2310                         if (word.size() > 100 || word.empty()) {
2311                                 // Get word or selection
2312                                 selectWordWhenUnderCursor(cur, WHOLE_WORD);
2313                                 word = cur.selectionAsString(false);
2314                         }
2315                         lang = const_cast<Language *>(cur.getFont().language());
2316                 } else
2317                         lang = const_cast<Language *>(languages.getLanguage(cmd.getArg(1)));
2318                 WordLangTuple wl(word, lang);
2319                 theSpellChecker()->remove(wl);
2320                 break;
2321         }
2322
2323         case LFUN_PARAGRAPH_PARAMS_APPLY: {
2324                 // Given data, an encoding of the ParagraphParameters
2325                 // generated in the Paragraph dialog, this function sets
2326                 // the current paragraph, or currently selected paragraphs,
2327                 // appropriately.
2328                 // NOTE: This function overrides all existing settings.
2329                 setParagraphs(cur, cmd.argument());
2330                 cur.message(_("Paragraph layout set"));
2331                 break;
2332         }
2333
2334         case LFUN_PARAGRAPH_PARAMS: {
2335                 // Given data, an encoding of the ParagraphParameters as we'd
2336                 // find them in a LyX file, this function modifies the current paragraph,
2337                 // or currently selected paragraphs.
2338                 // NOTE: This function only modifies, and does not override, existing
2339                 // settings.
2340                 setParagraphs(cur, cmd.argument(), true);
2341                 cur.message(_("Paragraph layout set"));
2342                 break;
2343         }
2344
2345         case LFUN_ESCAPE:
2346                 if (cur.selection()) {
2347                         cur.setSelection(false);
2348                 } else {
2349                         cur.undispatched();
2350                         // This used to be LFUN_FINISHED_RIGHT, I think FORWARD is more
2351                         // correct, but I'm not 100% sure -- dov, 071019
2352                         cmd = FuncRequest(LFUN_FINISHED_FORWARD);
2353                 }
2354                 break;
2355
2356         case LFUN_OUTLINE_UP:
2357                 outline(OutlineUp, cur);
2358                 setCursor(cur, cur.pit(), 0);
2359                 cur.forceBufferUpdate();
2360                 needsUpdate = true;
2361                 break;
2362
2363         case LFUN_OUTLINE_DOWN:
2364                 outline(OutlineDown, cur);
2365                 setCursor(cur, cur.pit(), 0);
2366                 cur.forceBufferUpdate();
2367                 needsUpdate = true;
2368                 break;
2369
2370         case LFUN_OUTLINE_IN:
2371                 outline(OutlineIn, cur);
2372                 cur.forceBufferUpdate();
2373                 needsUpdate = true;
2374                 break;
2375
2376         case LFUN_OUTLINE_OUT:
2377                 outline(OutlineOut, cur);
2378                 cur.forceBufferUpdate();
2379                 needsUpdate = true;
2380                 break;
2381
2382         case LFUN_SERVER_GET_STATISTICS:
2383                 {
2384                         DocIterator from, to;
2385                         if (cur.selection()) {
2386                                 from = cur.selectionBegin();
2387                                 to = cur.selectionEnd();
2388                         } else {
2389                                 from = doc_iterator_begin(cur.buffer());
2390                                 to = doc_iterator_end(cur.buffer());
2391                         }
2392
2393                         cur.buffer()->updateStatistics(from, to);
2394                         string const arg0 = cmd.getArg(0);
2395                         if (arg0 == "words") {
2396                                 cur.message(convert<docstring>(cur.buffer()->wordCount()));
2397                         } else if (arg0 == "chars") {
2398                                 cur.message(convert<docstring>(cur.buffer()->charCount(false)));
2399                         } else if (arg0 == "chars-space") {
2400                                 cur.message(convert<docstring>(cur.buffer()->charCount(true)));
2401                         } else {
2402                                 cur.message(convert<docstring>(cur.buffer()->wordCount()) + " "
2403                                 + convert<docstring>(cur.buffer()->charCount(false)) + " "
2404                                 + convert<docstring>(cur.buffer()->charCount(true)));
2405                         }
2406                 }
2407                 break;
2408
2409         default:
2410                 LYXERR(Debug::ACTION, "Command " << cmd << " not DISPATCHED by Text");
2411                 cur.undispatched();
2412                 break;
2413         }
2414
2415         needsUpdate |= (cur.pos() != cur.lastpos()) && cur.selection();
2416
2417         if (lyxrc.spellcheck_continuously && !needsUpdate) {
2418                 // Check for misspelled text
2419                 // The redraw is useful because of the painting of
2420                 // misspelled markers depends on the cursor position.
2421                 // Trigger a redraw for cursor moves inside misspelled text.
2422                 if (!cur.inTexted()) {
2423                         // move from regular text to math
2424                         needsUpdate = last_misspelled;
2425                 } else if (oldTopSlice != cur.top() || oldBoundary != cur.boundary()) {
2426                         // move inside regular text
2427                         needsUpdate = last_misspelled
2428                                 || cur.paragraph().isMisspelled(cur.pos(), true);
2429                 }
2430         }
2431
2432         // FIXME: The cursor flag is reset two lines below
2433         // so we need to check here if some of the LFUN did touch that.
2434         // for now only Text::erase() and Text::backspace() do that.
2435         // The plan is to verify all the LFUNs and then to remove this
2436         // singleParUpdate boolean altogether.
2437         if (cur.result().screenUpdate() & Update::Force) {
2438                 singleParUpdate = false;
2439                 needsUpdate = true;
2440         }
2441
2442         // FIXME: the following code should go in favor of fine grained
2443         // update flag treatment.
2444         if (singleParUpdate) {
2445                 // Inserting characters does not change par height in general. So, try
2446                 // to update _only_ this paragraph. BufferView will detect if a full
2447                 // metrics update is needed anyway.
2448                 cur.screenUpdateFlags(Update::SinglePar | Update::FitCursor);
2449                 return;
2450         }
2451         if (!needsUpdate
2452             && &oldTopSlice.inset() == &cur.inset()
2453             && oldTopSlice.idx() == cur.idx()
2454             && !oldSelection // oldSelection is a backup of cur.selection() at the beginning of the function.
2455             && !cur.selection())
2456                 // FIXME: it would be better if we could just do this
2457                 //
2458                 //if (cur.result().update() != Update::FitCursor)
2459                 //      cur.noScreenUpdate();
2460                 //
2461                 // But some LFUNs do not set Update::FitCursor when needed, so we
2462                 // do it for all. This is not very harmfull as FitCursor will provoke
2463                 // a full redraw only if needed but still, a proper review of all LFUN
2464                 // should be done and this needsUpdate boolean can then be removed.
2465                 cur.screenUpdateFlags(Update::FitCursor);
2466         else
2467                 cur.screenUpdateFlags(Update::Force | Update::FitCursor);
2468 }
2469
2470
2471 bool Text::getStatus(Cursor & cur, FuncRequest const & cmd,
2472                         FuncStatus & flag) const
2473 {
2474         LBUFERR(this == cur.text());
2475
2476         FontInfo const & fontinfo = cur.real_current_font.fontInfo();
2477         bool enable = true;
2478         bool allow_in_passthru = false;
2479         InsetCode code = NO_CODE;
2480
2481         switch (cmd.action()) {
2482
2483         case LFUN_DEPTH_DECREMENT:
2484                 enable = changeDepthAllowed(cur, DEC_DEPTH);
2485                 break;
2486
2487         case LFUN_DEPTH_INCREMENT:
2488                 enable = changeDepthAllowed(cur, INC_DEPTH);
2489                 break;
2490
2491         case LFUN_APPENDIX:
2492                 // FIXME We really should not allow this to be put, e.g.,
2493                 // in a footnote, or in ERT. But it would make sense in a
2494                 // branch, so I'm not sure what to do.
2495                 flag.setOnOff(cur.paragraph().params().startOfAppendix());
2496                 break;
2497
2498         case LFUN_DIALOG_SHOW_NEW_INSET:
2499                 if (cmd.argument() == "bibitem")
2500                         code = BIBITEM_CODE;
2501                 else if (cmd.argument() == "bibtex") {
2502                         code = BIBTEX_CODE;
2503                         // not allowed in description items
2504                         enable = !inDescriptionItem(cur);
2505                 }
2506                 else if (cmd.argument() == "box")
2507                         code = BOX_CODE;
2508                 else if (cmd.argument() == "branch")
2509                         code = BRANCH_CODE;
2510                 else if (cmd.argument() == "citation")
2511                         code = CITE_CODE;
2512                 else if (cmd.argument() == "ert")
2513                         code = ERT_CODE;
2514                 else if (cmd.argument() == "external")
2515                         code = EXTERNAL_CODE;
2516                 else if (cmd.argument() == "float")
2517                         code = FLOAT_CODE;
2518                 else if (cmd.argument() == "graphics")
2519                         code = GRAPHICS_CODE;
2520                 else if (cmd.argument() == "href")
2521                         code = HYPERLINK_CODE;
2522                 else if (cmd.argument() == "include")
2523                         code = INCLUDE_CODE;
2524                 else if (cmd.argument() == "index")
2525                         code = INDEX_CODE;
2526                 else if (cmd.argument() == "index_print")
2527                         code = INDEX_PRINT_CODE;
2528                 else if (cmd.argument() == "listings")
2529                         code = LISTINGS_CODE;
2530                 else if (cmd.argument() == "mathspace")
2531                         code = MATH_HULL_CODE;
2532                 else if (cmd.argument() == "nomenclature")
2533                         code = NOMENCL_CODE;
2534                 else if (cmd.argument() == "nomencl_print")
2535                         code = NOMENCL_PRINT_CODE;
2536                 else if (cmd.argument() == "label")
2537                         code = LABEL_CODE;
2538                 else if (cmd.argument() == "line")
2539                         code = LINE_CODE;
2540                 else if (cmd.argument() == "note")
2541                         code = NOTE_CODE;
2542                 else if (cmd.argument() == "phantom")
2543                         code = PHANTOM_CODE;
2544                 else if (cmd.argument() == "ref")
2545                         code = REF_CODE;
2546                 else if (cmd.argument() == "space")
2547                         code = SPACE_CODE;
2548                 else if (cmd.argument() == "toc")
2549                         code = TOC_CODE;
2550                 else if (cmd.argument() == "vspace")
2551                         code = VSPACE_CODE;
2552                 else if (cmd.argument() == "wrap")
2553                         code = WRAP_CODE;
2554                 break;
2555
2556         case LFUN_ERT_INSERT:
2557                 code = ERT_CODE;
2558                 break;
2559         case LFUN_LISTING_INSERT:
2560                 code = LISTINGS_CODE;
2561                 // not allowed in description items
2562                 enable = !inDescriptionItem(cur);
2563                 break;
2564         case LFUN_FOOTNOTE_INSERT:
2565                 code = FOOT_CODE;
2566                 break;
2567         case LFUN_TABULAR_INSERT:
2568                 code = TABULAR_CODE;
2569                 break;
2570         case LFUN_MARGINALNOTE_INSERT:
2571                 code = MARGIN_CODE;
2572                 break;
2573         case LFUN_FLOAT_INSERT:
2574         case LFUN_FLOAT_WIDE_INSERT:
2575                 // FIXME: If there is a selection, we should check whether there
2576                 // are floats in the selection, but this has performance issues, see
2577                 // LFUN_CHANGE_ACCEPT/REJECT.
2578                 code = FLOAT_CODE;
2579                 if (inDescriptionItem(cur))
2580                         // not allowed in description items
2581                         enable = false;
2582                 else {
2583                         InsetCode const inset_code = cur.inset().lyxCode();
2584
2585                         // algorithm floats cannot be put in another float
2586                         if (to_utf8(cmd.argument()) == "algorithm") {
2587                                 enable = inset_code != WRAP_CODE && inset_code != FLOAT_CODE;
2588                                 break;
2589                         }
2590
2591                         // for figures and tables: only allow in another
2592                         // float or wrap if it is of the same type and
2593                         // not a subfloat already
2594                         if(cur.inset().lyxCode() == code) {
2595                                 InsetFloat const & ins =
2596                                         static_cast<InsetFloat const &>(cur.inset());
2597                                 enable = ins.params().type == to_utf8(cmd.argument())
2598                                         && !ins.params().subfloat;
2599                         } else if(cur.inset().lyxCode() == WRAP_CODE) {
2600                                 InsetWrap const & ins =
2601                                         static_cast<InsetWrap const &>(cur.inset());
2602                                 enable = ins.params().type == to_utf8(cmd.argument());
2603                         }
2604                 }
2605                 break;
2606         case LFUN_WRAP_INSERT:
2607                 code = WRAP_CODE;
2608                 // not allowed in description items
2609                 enable = !inDescriptionItem(cur);
2610                 break;
2611         case LFUN_FLOAT_LIST_INSERT: {
2612                 code = FLOAT_LIST_CODE;
2613                 // not allowed in description items
2614                 enable = !inDescriptionItem(cur);
2615                 if (enable) {
2616                         FloatList const & floats = cur.buffer()->params().documentClass().floats();
2617                         FloatList::const_iterator cit = floats[to_ascii(cmd.argument())];
2618                         // make sure we know about such floats
2619                         if (cit == floats.end() ||
2620                                         // and that we know how to generate a list of them
2621                             (!cit->second.usesFloatPkg() && cit->second.listCommand().empty())) {
2622                                 flag.setUnknown(true);
2623                                 // probably not necessary, but...
2624                                 enable = false;
2625                         }
2626                 }
2627                 break;
2628         }
2629         case LFUN_CAPTION_INSERT: {
2630                 code = CAPTION_CODE;
2631                 string arg = cmd.getArg(0);
2632                 bool varia = arg != "LongTableNoNumber";
2633                 if (cur.depth() > 0) {
2634                         if (&cur[cur.depth() - 1].inset())
2635                                 varia = cur[cur.depth() - 1].inset().allowsCaptionVariation(arg);
2636                 }
2637                 // not allowed in description items,
2638                 // and in specific insets
2639                 enable = !inDescriptionItem(cur)
2640                         && (varia || arg.empty() || arg == "Standard");
2641                 break;
2642         }
2643         case LFUN_NOTE_INSERT:
2644                 code = NOTE_CODE;
2645                 // in commands (sections etc.) and description items,
2646                 // only Notes are allowed
2647                 enable = (cmd.argument().empty() || cmd.getArg(0) == "Note" ||
2648                           (!cur.paragraph().layout().isCommand()
2649                            && !inDescriptionItem(cur)));
2650                 break;
2651         case LFUN_FLEX_INSERT: {
2652                 code = FLEX_CODE;
2653                 string s = cmd.getArg(0);
2654                 InsetLayout il =
2655                         cur.buffer()->params().documentClass().insetLayout(from_utf8(s));
2656                 if (il.lyxtype() != InsetLayout::CHARSTYLE &&
2657                     il.lyxtype() != InsetLayout::CUSTOM &&
2658                     il.lyxtype() != InsetLayout::ELEMENT &&
2659                     il.lyxtype ()!= InsetLayout::STANDARD)
2660                         enable = false;
2661                 break;
2662                 }
2663         case LFUN_BOX_INSERT:
2664                 code = BOX_CODE;
2665                 break;
2666         case LFUN_BRANCH_INSERT:
2667                 code = BRANCH_CODE;
2668                 if (cur.buffer()->masterBuffer()->params().branchlist().empty()
2669                     && cur.buffer()->params().branchlist().empty())
2670                         enable = false;
2671                 break;
2672         case LFUN_IPA_INSERT:
2673                 code = IPA_CODE;
2674                 break;
2675         case LFUN_PHANTOM_INSERT:
2676                 code = PHANTOM_CODE;
2677                 break;
2678         case LFUN_LABEL_INSERT:
2679                 code = LABEL_CODE;
2680                 break;
2681         case LFUN_INFO_INSERT:
2682                 code = INFO_CODE;
2683                 break;
2684         case LFUN_ARGUMENT_INSERT: {
2685                 code = ARG_CODE;
2686                 allow_in_passthru = true;
2687                 string const arg = cmd.getArg(0);
2688                 if (arg.empty()) {
2689                         enable = false;
2690                         break;
2691                 }
2692                 Layout const & lay = cur.paragraph().layout();
2693                 Layout::LaTeXArgMap args = lay.args();
2694                 Layout::LaTeXArgMap::const_iterator const lait =
2695                                 args.find(arg);
2696                 if (lait != args.end()) {
2697                         enable = true;
2698                         pit_type pit = cur.pit();
2699                         pit_type lastpit = cur.pit();
2700                         if (lay.isEnvironment() && !prefixIs(arg, "item:")) {
2701                                 // In a sequence of "merged" environment layouts, we only allow
2702                                 // non-item arguments once.
2703                                 lastpit = cur.lastpit();
2704                                 // get the first paragraph in sequence with this layout
2705                                 depth_type const current_depth = cur.paragraph().params().depth();
2706                                 while (true) {
2707                                         if (pit == 0)
2708                                                 break;
2709                                         Paragraph cpar = pars_[pit - 1];
2710                                         if (cpar.layout() == lay && cpar.params().depth() == current_depth)
2711                                                 --pit;
2712                                         else
2713                                                 break;
2714                                 }
2715                         }
2716                         for (; pit <= lastpit; ++pit) {
2717                                 if (pars_[pit].layout() != lay)
2718                                         break;
2719                                 InsetList::const_iterator it = pars_[pit].insetList().begin();
2720                                 InsetList::const_iterator end = pars_[pit].insetList().end();
2721                                 for (; it != end; ++it) {
2722                                         if (it->inset->lyxCode() == ARG_CODE) {
2723                                                 InsetArgument const * ins =
2724                                                         static_cast<InsetArgument const *>(it->inset);
2725                                                 if (ins->name() == arg) {
2726                                                         // we have this already
2727                                                         enable = false;
2728                                                         break;
2729                                                 }
2730                                         }
2731                                 }
2732                         }
2733                 } else
2734                         enable = false;
2735                 break;
2736         }
2737         case LFUN_INDEX_INSERT:
2738                 code = INDEX_CODE;
2739                 break;
2740         case LFUN_INDEX_PRINT:
2741                 code = INDEX_PRINT_CODE;
2742                 // not allowed in description items
2743                 enable = !inDescriptionItem(cur);
2744                 break;
2745         case LFUN_NOMENCL_INSERT:
2746                 if (cur.selIsMultiCell() || cur.selIsMultiLine()) {
2747                         enable = false;
2748                         break;
2749                 }
2750                 code = NOMENCL_CODE;
2751                 break;
2752         case LFUN_NOMENCL_PRINT:
2753                 code = NOMENCL_PRINT_CODE;
2754                 // not allowed in description items
2755                 enable = !inDescriptionItem(cur);
2756                 break;
2757         case LFUN_HREF_INSERT:
2758                 if (cur.selIsMultiCell() || cur.selIsMultiLine()) {
2759                         enable = false;
2760                         break;
2761                 }
2762                 code = HYPERLINK_CODE;
2763                 break;
2764         case LFUN_IPAMACRO_INSERT: {
2765                 string const arg = cmd.getArg(0);
2766                 if (arg == "deco")
2767                         code = IPADECO_CODE;
2768                 else
2769                         code = IPACHAR_CODE;
2770                 break;
2771         }
2772         case LFUN_QUOTE_INSERT:
2773                 // always allow this, since we will inset a raw quote
2774                 // if an inset is not allowed.
2775                 break;
2776         case LFUN_SPECIALCHAR_INSERT:
2777                 code = SPECIALCHAR_CODE;
2778                 break;
2779         case LFUN_SPACE_INSERT:
2780                 // slight hack: we know this is allowed in math mode
2781                 if (cur.inTexted())
2782                         code = SPACE_CODE;
2783                 break;
2784         case LFUN_PREVIEW_INSERT:
2785                 code = PREVIEW_CODE;
2786                 break;
2787         case LFUN_SCRIPT_INSERT:
2788                 code = SCRIPT_CODE;
2789                 break;
2790
2791         case LFUN_MATH_INSERT:
2792         case LFUN_MATH_AMS_MATRIX:
2793         case LFUN_MATH_MATRIX:
2794         case LFUN_MATH_DELIM:
2795         case LFUN_MATH_BIGDELIM:
2796         case LFUN_MATH_DISPLAY:
2797         case LFUN_MATH_MODE:
2798         case LFUN_MATH_MACRO:
2799         case LFUN_MATH_SUBSCRIPT:
2800         case LFUN_MATH_SUPERSCRIPT:
2801                 code = MATH_HULL_CODE;
2802                 break;
2803
2804         case LFUN_REGEXP_MODE:
2805                 code = MATH_HULL_CODE;
2806                 enable = cur.buffer()->isInternal() && !cur.inRegexped();
2807                 break;
2808
2809         case LFUN_INSET_MODIFY:
2810                 // We need to disable this, because we may get called for a
2811                 // tabular cell via
2812                 // InsetTabular::getStatus() -> InsetText::getStatus()
2813                 // and we don't handle LFUN_INSET_MODIFY.
2814                 enable = false;
2815                 break;
2816
2817         case LFUN_FONT_EMPH:
2818                 flag.setOnOff(fontinfo.emph() == FONT_ON);
2819                 enable = !cur.paragraph().isPassThru();
2820                 break;
2821
2822         case LFUN_FONT_ITAL:
2823                 flag.setOnOff(fontinfo.shape() == ITALIC_SHAPE);
2824                 enable = !cur.paragraph().isPassThru();
2825                 break;
2826
2827         case LFUN_FONT_NOUN:
2828                 flag.setOnOff(fontinfo.noun() == FONT_ON);
2829                 enable = !cur.paragraph().isPassThru();
2830                 break;
2831
2832         case LFUN_FONT_BOLD:
2833         case LFUN_FONT_BOLDSYMBOL:
2834                 flag.setOnOff(fontinfo.series() == BOLD_SERIES);
2835                 enable = !cur.paragraph().isPassThru();
2836                 break;
2837
2838         case LFUN_FONT_SANS:
2839                 flag.setOnOff(fontinfo.family() == SANS_FAMILY);
2840                 enable = !cur.paragraph().isPassThru();
2841                 break;
2842
2843         case LFUN_FONT_ROMAN:
2844                 flag.setOnOff(fontinfo.family() == ROMAN_FAMILY);
2845                 enable = !cur.paragraph().isPassThru();
2846                 break;
2847
2848         case LFUN_FONT_TYPEWRITER:
2849                 flag.setOnOff(fontinfo.family() == TYPEWRITER_FAMILY);
2850                 enable = !cur.paragraph().isPassThru();
2851                 break;
2852
2853         case LFUN_CUT:
2854         case LFUN_COPY:
2855                 enable = cur.selection();
2856                 break;
2857
2858         case LFUN_PASTE: {
2859                 if (cmd.argument().empty()) {
2860                         if (theClipboard().isInternal())
2861                                 enable = cap::numberOfSelections() > 0;
2862                         else
2863                                 enable = !theClipboard().empty();
2864                         break;
2865                 }
2866
2867                 // we have an argument
2868                 string const arg = to_utf8(cmd.argument());
2869                 if (isStrUnsignedInt(arg)) {
2870                         // it's a number and therefore means the internal stack
2871                         unsigned int n = convert<unsigned int>(arg);
2872                         enable = cap::numberOfSelections() > n;
2873                         break;
2874                 }
2875
2876                 // explicit text type?
2877                 if (arg == "html") {
2878                         // Do not enable for PlainTextType, since some tidying in the
2879                         // frontend is needed for HTML, which is too unsafe for plain text.
2880                         enable = theClipboard().hasTextContents(Clipboard::HtmlTextType);
2881                         break;
2882                 } else if (arg == "latex") {
2883                         // LaTeX is usually not available on the clipboard with
2884                         // the correct MIME type, but in plain text.
2885                         enable = theClipboard().hasTextContents(Clipboard::PlainTextType) ||
2886                                  theClipboard().hasTextContents(Clipboard::LaTeXTextType);
2887                         break;
2888                 }
2889
2890                 // explicit graphics type?
2891                 Clipboard::GraphicsType type = Clipboard::AnyGraphicsType;
2892                 if ((arg == "pdf" && (type = Clipboard::PdfGraphicsType))
2893                           || (arg == "png" && (type = Clipboard::PngGraphicsType))
2894                           || (arg == "jpeg" && (type = Clipboard::JpegGraphicsType))
2895                           || (arg == "linkback" &&  (type = Clipboard::LinkBackGraphicsType))
2896                           || (arg == "emf" &&  (type = Clipboard::EmfGraphicsType))
2897                           || (arg == "wmf" &&  (type = Clipboard::WmfGraphicsType))) {
2898                         enable = theClipboard().hasGraphicsContents(type);
2899                         break;
2900                 }
2901
2902                 // unknown argument
2903                 enable = false;
2904                 break;
2905          }
2906
2907         case LFUN_CLIPBOARD_PASTE:
2908         case LFUN_CLIPBOARD_PASTE_SIMPLE:
2909                 enable = !theClipboard().empty();
2910                 break;
2911
2912         case LFUN_PRIMARY_SELECTION_PASTE:
2913                 enable = cur.selection() || !theSelection().empty();
2914                 break;
2915
2916         case LFUN_SELECTION_PASTE:
2917                 enable = cap::selection();
2918                 break;
2919
2920         case LFUN_PARAGRAPH_MOVE_UP:
2921                 enable = cur.pit() > 0 && !cur.selection();
2922                 break;
2923
2924         case LFUN_PARAGRAPH_MOVE_DOWN:
2925                 enable = cur.pit() < cur.lastpit() && !cur.selection();
2926                 break;
2927
2928         case LFUN_CHANGE_ACCEPT:
2929         case LFUN_CHANGE_REJECT:
2930                 // In principle, these LFUNs should only be enabled if there
2931                 // is a change at the current position/in the current selection.
2932                 // However, without proper optimizations, this will inevitably
2933                 // result in unacceptable performance - just imagine a user who
2934                 // wants to select the complete content of a long document.
2935                 if (!cur.selection())
2936                         enable = cur.paragraph().isChanged(cur.pos());
2937                 else
2938                         // TODO: context-sensitive enabling of LFUN_CHANGE_ACCEPT/REJECT
2939                         // for selections.
2940                         enable = true;
2941                 break;
2942
2943         case LFUN_OUTLINE_UP:
2944         case LFUN_OUTLINE_DOWN:
2945         case LFUN_OUTLINE_IN:
2946         case LFUN_OUTLINE_OUT:
2947                 // FIXME: LyX is not ready for outlining within inset.
2948                 enable = isMainText()
2949                         && cur.buffer()->text().getTocLevel(cur.pit()) != Layout::NOT_IN_TOC;
2950                 break;
2951
2952         case LFUN_NEWLINE_INSERT:
2953                 // LaTeX restrictions (labels or empty par)
2954                 enable = !cur.paragraph().isPassThru()
2955                         && cur.pos() > cur.paragraph().beginOfBody();
2956                 break;
2957
2958         case LFUN_SEPARATOR_INSERT:
2959                 // Always enabled for now
2960                 enable = true;
2961                 break;
2962
2963         case LFUN_TAB_INSERT:
2964         case LFUN_TAB_DELETE:
2965                 enable = cur.paragraph().isPassThru();
2966                 break;
2967
2968         case LFUN_SET_GRAPHICS_GROUP: {
2969                 InsetGraphics * ins = graphics::getCurrentGraphicsInset(cur);
2970                 if (!ins)
2971                         enable = false;
2972                 else
2973                         flag.setOnOff(to_utf8(cmd.argument()) == ins->getParams().groupId);
2974                 break;
2975         }
2976
2977         case LFUN_NEWPAGE_INSERT:
2978                 // not allowed in description items
2979                 code = NEWPAGE_CODE;
2980                 enable = !inDescriptionItem(cur);
2981                 break;
2982
2983         case LFUN_DATE_INSERT: {
2984                 string const format = cmd.argument().empty()
2985                         ? lyxrc.date_insert_format : to_utf8(cmd.argument());
2986                 enable = support::os::is_valid_strftime(format);
2987                 break;
2988         }
2989
2990         case LFUN_LANGUAGE:
2991                 enable = !cur.paragraph().isPassThru();
2992                 flag.setOnOff(cmd.getArg(0) == cur.real_current_font.language()->lang());
2993                 break;
2994
2995         case LFUN_PARAGRAPH_BREAK:
2996                 enable = cur.inset().getLayout().isMultiPar();
2997                 break;
2998
2999         case LFUN_SPELLING_ADD:
3000         case LFUN_SPELLING_IGNORE:
3001         case LFUN_SPELLING_REMOVE:
3002                 enable = theSpellChecker();
3003                 break;
3004
3005         case LFUN_LAYOUT:
3006                 enable = !cur.inset().forcePlainLayout();
3007                 break;
3008
3009         case LFUN_ENVIRONMENT_SPLIT: {
3010                 if (cmd.argument() == "outer") {
3011                         // check if we have an environment in our nesting hierarchy
3012                         bool res = false;
3013                         depth_type const current_depth = cur.paragraph().params().depth();
3014                         pit_type pit = cur.pit();
3015                         Paragraph cpar = pars_[pit];
3016                         while (true) {
3017                                 if (pit == 0 || cpar.params().depth() == 0)
3018                                         break;
3019                                 --pit;
3020                                 cpar = pars_[pit];
3021                                 if (cpar.params().depth() < current_depth)
3022                                         res = cpar.layout().isEnvironment();
3023                         }
3024                         enable = res;
3025                         break;
3026                 }
3027                 else if (cur.paragraph().layout().isEnvironment()) {
3028                         enable = true;
3029                         break;
3030                 }
3031                 enable = false;
3032                 break;
3033         }
3034
3035         case LFUN_LAYOUT_PARAGRAPH:
3036         case LFUN_PARAGRAPH_PARAMS:
3037         case LFUN_PARAGRAPH_PARAMS_APPLY:
3038         case LFUN_PARAGRAPH_UPDATE:
3039                 enable = cur.inset().allowParagraphCustomization();
3040                 break;
3041
3042         // FIXME: why are accent lfuns forbidden with pass_thru layouts?
3043         case LFUN_ACCENT_ACUTE:
3044         case LFUN_ACCENT_BREVE:
3045         case LFUN_ACCENT_CARON:
3046         case LFUN_ACCENT_CEDILLA:
3047         case LFUN_ACCENT_CIRCLE:
3048         case LFUN_ACCENT_CIRCUMFLEX:
3049         case LFUN_ACCENT_DOT:
3050         case LFUN_ACCENT_GRAVE:
3051         case LFUN_ACCENT_HUNGARIAN_UMLAUT:
3052         case LFUN_ACCENT_MACRON:
3053         case LFUN_ACCENT_OGONEK:
3054         case LFUN_ACCENT_TIE:
3055         case LFUN_ACCENT_TILDE:
3056         case LFUN_ACCENT_UMLAUT:
3057         case LFUN_ACCENT_UNDERBAR:
3058         case LFUN_ACCENT_UNDERDOT:
3059         case LFUN_FONT_DEFAULT:
3060         case LFUN_FONT_FRAK:
3061         case LFUN_FONT_SIZE:
3062         case LFUN_FONT_STATE:
3063         case LFUN_FONT_UNDERLINE:
3064         case LFUN_FONT_STRIKEOUT:
3065         case LFUN_FONT_UNDERUNDERLINE:
3066         case LFUN_FONT_UNDERWAVE:
3067         case LFUN_TEXTSTYLE_APPLY:
3068         case LFUN_TEXTSTYLE_UPDATE:
3069                 enable = !cur.paragraph().isPassThru();
3070                 break;
3071
3072         case LFUN_WORD_DELETE_FORWARD:
3073         case LFUN_WORD_DELETE_BACKWARD:
3074         case LFUN_LINE_DELETE_FORWARD:
3075         case LFUN_WORD_FORWARD:
3076         case LFUN_WORD_BACKWARD:
3077         case LFUN_WORD_RIGHT:
3078         case LFUN_WORD_LEFT:
3079         case LFUN_CHAR_FORWARD:
3080         case LFUN_CHAR_FORWARD_SELECT:
3081         case LFUN_CHAR_BACKWARD:
3082         case LFUN_CHAR_BACKWARD_SELECT:
3083         case LFUN_CHAR_LEFT:
3084         case LFUN_CHAR_LEFT_SELECT:
3085         case LFUN_CHAR_RIGHT:
3086         case LFUN_CHAR_RIGHT_SELECT:
3087         case LFUN_UP:
3088         case LFUN_UP_SELECT:
3089         case LFUN_DOWN:
3090         case LFUN_DOWN_SELECT:
3091         case LFUN_PARAGRAPH_UP_SELECT:
3092         case LFUN_PARAGRAPH_DOWN_SELECT:
3093         case LFUN_LINE_BEGIN_SELECT:
3094         case LFUN_LINE_END_SELECT:
3095         case LFUN_WORD_FORWARD_SELECT:
3096         case LFUN_WORD_BACKWARD_SELECT:
3097         case LFUN_WORD_RIGHT_SELECT:
3098         case LFUN_WORD_LEFT_SELECT:
3099         case LFUN_WORD_SELECT:
3100         case LFUN_SECTION_SELECT:
3101         case LFUN_BUFFER_BEGIN:
3102         case LFUN_BUFFER_END:
3103         case LFUN_BUFFER_BEGIN_SELECT:
3104         case LFUN_BUFFER_END_SELECT:
3105         case LFUN_INSET_BEGIN:
3106         case LFUN_INSET_END:
3107         case LFUN_INSET_BEGIN_SELECT:
3108         case LFUN_INSET_END_SELECT:
3109         case LFUN_PARAGRAPH_UP:
3110         case LFUN_PARAGRAPH_DOWN:
3111         case LFUN_LINE_BEGIN:
3112         case LFUN_LINE_END:
3113         case LFUN_CHAR_DELETE_FORWARD:
3114         case LFUN_CHAR_DELETE_BACKWARD:
3115         case LFUN_WORD_UPCASE:
3116         case LFUN_WORD_LOWCASE:
3117         case LFUN_WORD_CAPITALIZE:
3118         case LFUN_CHARS_TRANSPOSE:
3119         case LFUN_SERVER_GET_XY:
3120         case LFUN_SERVER_SET_XY:
3121         case LFUN_SERVER_GET_LAYOUT:
3122         case LFUN_SELF_INSERT:
3123         case LFUN_UNICODE_INSERT:
3124         case LFUN_THESAURUS_ENTRY:
3125         case LFUN_ESCAPE:
3126         case LFUN_SERVER_GET_STATISTICS:
3127                 // these are handled in our dispatch()
3128                 enable = true;
3129                 break;
3130
3131         case LFUN_INSET_INSERT: {
3132                 string const type = cmd.getArg(0);
3133                 if (type == "toc") {
3134                         code = TOC_CODE;
3135                         // not allowed in description items
3136                         //FIXME: couldn't this be merged in Inset::insetAllowed()?
3137                         enable = !inDescriptionItem(cur);
3138                 } else {
3139                         enable = true;
3140                 }
3141                 break;
3142         }
3143
3144         default:
3145                 return false;
3146         }
3147
3148         if (code != NO_CODE
3149             && (cur.empty()
3150                 || !cur.inset().insetAllowed(code)
3151                 || (cur.paragraph().layout().pass_thru && !allow_in_passthru)))
3152                 enable = false;
3153
3154         flag.setEnabled(enable);
3155         return true;
3156 }
3157
3158
3159 void Text::pasteString(Cursor & cur, docstring const & clip,
3160                 bool asParagraphs)
3161 {
3162         if (!clip.empty()) {
3163                 cur.recordUndo();
3164                 if (asParagraphs)
3165                         insertStringAsParagraphs(cur, clip, cur.current_font);
3166                 else
3167                         insertStringAsLines(cur, clip, cur.current_font);
3168         }
3169 }
3170
3171
3172 // FIXME: an item inset would make things much easier.
3173 bool Text::inDescriptionItem(Cursor & cur) const
3174 {
3175         Paragraph & par = cur.paragraph();
3176         pos_type const pos = cur.pos();
3177         pos_type const body_pos = par.beginOfBody();
3178
3179         if (par.layout().latextype != LATEX_LIST_ENVIRONMENT
3180             && (par.layout().latextype != LATEX_ITEM_ENVIRONMENT
3181                 || par.layout().margintype != MARGIN_FIRST_DYNAMIC))
3182                 return false;
3183
3184         return (pos < body_pos
3185                 || (pos == body_pos
3186                     && (pos == 0 || par.getChar(pos - 1) != ' ')));
3187 }
3188
3189 } // namespace lyx