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