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