src/Text3.cpp

   1 /**
   2  * \file Text3.cpp
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author Asger Alstrup
   7  * \author Lars Gullik Bjønnes
   8  * \author Alfredo Braunstein
   9  * \author Angus Leeming
  10  * \author John Levon
  11  * \author André Pönitz
  12  *
  13  * Full author contact details are available in file CREDITS.
  14  */
  15
  16 #include <config.h>
  17
  18 #include "Text.h"
  19
  20 #include "Bidi.h"
  21 #include "BranchList.h"
  22 #include "FloatList.h"
  23 #include "FuncStatus.h"
  24 #include "Buffer.h"
  25 #include "buffer_funcs.h"
  26 #include "BufferParams.h"
  27 #include "BufferView.h"
  28 #include "Changes.h"
  29 #include "Cursor.h"
  30 #include "CutAndPaste.h"
  31 #include "DispatchResult.h"
  32 #include "ErrorList.h"
  33 #include "factory.h"
  34 #include "FuncRequest.h"
  35 #include "InsetList.h"
  36 #include "Intl.h"
  37 #include "Language.h"
  38 #include "Layout.h"
  39 #include "LyXAction.h"
  40 #include "LyX.h"
  41 #include "Lexer.h"
  42 #include "LyXRC.h"
  43 #include "Paragraph.h"
  44 #include "ParagraphParameters.h"
  45 #include "SpellChecker.h"
  46 #include "TextClass.h"
  47 #include "TextMetrics.h"
  48 #include "VSpace.h"
  49 #include "WordLangTuple.h"
  50
  51 #include "frontends/Application.h"
  52 #include "frontends/Clipboard.h"
  53 #include "frontends/Selection.h"
  54
  55 #include "insets/InsetCollapsable.h"
  56 #include "insets/InsetCommand.h"
  57 #include "insets/InsetExternal.h"
  58 #include "insets/InsetFloat.h"
  59 #include "insets/InsetFloatList.h"
  60 #include "insets/InsetGraphics.h"
  61 #include "insets/InsetGraphicsParams.h"
  62 #include "insets/InsetNewline.h"
  63 #include "insets/InsetQuotes.h"
  64 #include "insets/InsetSpecialChar.h"
  65 #include "insets/InsetText.h"
  66 #include "insets/InsetWrap.h"
  67
  68 #include "support/convert.h"
  69 #include "support/debug.h"
  70 #include "support/gettext.h"
  71 #include "support/lstrings.h"
  72 #include "support/lyxtime.h"
  73 #include "support/os.h"
  74
  75 #include "mathed/InsetMathHull.h"
  76 #include "mathed/MathMacroTemplate.h"
  77
  78 #include <boost/next_prior.hpp>
  79
  80 #include <clocale>
  81 #include <sstream>
  82
  83 using namespace std;
  84 using namespace lyx::support;
  85
  86 namespace lyx {
  87
  88 using cap::copySelection;
  89 using cap::cutSelection;
  90 using cap::pasteFromStack;
  91 using cap::pasteClipboardText;
  92 using cap::pasteClipboardGraphics;
  93 using cap::replaceSelection;
  94 using cap::grabAndEraseSelection;
  95 using cap::selClearOrDel;
  96
  97 // globals...
  98 static Font freefont(ignore_font, ignore_language);
  99 static bool toggleall = false;
 100
 101 static void toggleAndShow(Cursor & cur, Text * text,
 102         Font const & font, bool toggleall = true)
 103 {
 104         text->toggleFree(cur, font, toggleall);
 105
 106         if (font.language() != ignore_language ||
 107             font.fontInfo().number() != FONT_IGNORE) {
 108                 TextMetrics const & tm = cur.bv().textMetrics(text);
 109                 if (cur.boundary() != tm.isRTLBoundary(cur.pit(), cur.pos(),
 110                                                        cur.real_current_font))
 111                         text->setCursor(cur, cur.pit(), cur.pos(),
 112                                         false, !cur.boundary());
 113         }
 114 }
 115
 116
 117 static void moveCursor(Cursor & cur, bool selecting)
 118 {
 119         if (selecting || cur.mark())
 120                 cur.setSelection();
 121 }
 122
 123
 124 static void finishChange(Cursor & cur, bool selecting)
 125 {
 126         cur.finishUndo();
 127         moveCursor(cur, selecting);
 128 }
 129
 130
 131 static void mathDispatch(Cursor & cur, FuncRequest const & cmd, bool display)
 132 {
 133         cur.recordUndo();
 134         docstring sel = cur.selectionAsString(false);
 135
 136         // It may happen that sel is empty but there is a selection
 137         replaceSelection(cur);
 138
 139         // Is this a valid formula?
 140         bool valid = true;
 141
 142         if (sel.empty()) {
 143 #ifdef ENABLE_ASSERTIONS
 144                 const int old_pos = cur.pos();
 145 #endif
 146                 cur.insert(new InsetMathHull(cur.buffer(), hullSimple));
 147 #ifdef ENABLE_ASSERTIONS
 148                 LASSERT(old_pos == cur.pos(), /**/);
 149 #endif
 150                 cur.nextInset()->edit(cur, true);
 151                 // don't do that also for LFUN_MATH_MODE
 152                 // unless you want end up with always changing
 153                 // to mathrm when opening an inlined inset --
 154                 // I really hate "LyXfunc overloading"...
 155                 if (display)
 156                         cur.dispatch(FuncRequest(LFUN_MATH_DISPLAY));
 157                 // Avoid an unnecessary undo step if cmd.argument
 158                 // is empty
 159                 if (!cmd.argument().empty())
 160                         cur.dispatch(FuncRequest(LFUN_MATH_INSERT,
 161                                                  cmd.argument()));
 162         } else {
 163                 // create a macro if we see "\\newcommand"
 164                 // somewhere, and an ordinary formula
 165                 // otherwise
 166                 if (sel.find(from_ascii("\\newcommand")) == string::npos
 167                                 && sel.find(from_ascii("\\newlyxcommand")) == string::npos
 168                                 && sel.find(from_ascii("\\def")) == string::npos)
 169                 {
 170                         InsetMathHull * formula = new InsetMathHull(cur.buffer());
 171                         string const selstr = to_utf8(sel);
 172                         istringstream is(selstr);
 173                         Lexer lex;
 174                         lex.setStream(is);
 175                         if (!formula->readQuiet(lex)) {
 176                                 // No valid formula, let's try with delims
 177                                 is.str("$" + selstr + "$");
 178                                 lex.setStream(is);
 179                                 if (!formula->readQuiet(lex)) {
 180                                         // Still not valid, leave it as is
 181                                         valid = false;
 182                                         delete formula;
 183                                         cur.insert(sel);
 184                                 } else
 185                                         cur.insert(formula);
 186                         } else
 187                                 cur.insert(formula);
 188                 } else {
 189                         cur.insert(new MathMacroTemplate(cur.buffer(), sel));
 190                 }
 191         }
 192         if (valid)
 193                 cur.message(from_utf8(N_("Math editor mode")));
 194         else
 195                 cur.message(from_utf8(N_("No valid math formula")));
 196 }
 197
 198
 199 void regexpDispatch(Cursor & cur, FuncRequest const & cmd)
 200 {
 201         LASSERT(cmd.action() == LFUN_REGEXP_MODE, return);
 202         if (cur.inRegexped()) {
 203                 cur.message(_("Already in regular expression mode"));
 204                 return;
 205         }
 206         cur.recordUndo();
 207         docstring sel = cur.selectionAsString(false);
 208
 209         // It may happen that sel is empty but there is a selection
 210         replaceSelection(cur);
 211
 212         cur.insert(new InsetMathHull(cur.buffer(), hullRegexp));
 213         cur.nextInset()->edit(cur, true);
 214         cur.niceInsert(sel);
 215
 216         cur.message(_("Regexp editor mode"));
 217 }
 218
 219
 220 static void specialChar(Cursor & cur, InsetSpecialChar::Kind kind)
 221 {
 222         cur.recordUndo();
 223         cap::replaceSelection(cur);
 224         cur.insert(new InsetSpecialChar(kind));
 225         cur.posForward();
 226 }
 227
 228
 229 static bool doInsertInset(Cursor & cur, Text * text,
 230         FuncRequest const & cmd, bool edit, bool pastesel)
 231 {
 232         Buffer & buffer = cur.bv().buffer();
 233         BufferParams const & bparams = buffer.params();
 234         Inset * inset = createInset(&buffer, cmd);
 235         if (!inset)
 236                 return false;
 237
 238         if (InsetCollapsable * ci = inset->asInsetCollapsable())
 239                 ci->setButtonLabel();
 240
 241         cur.recordUndo();
 242         if (cmd.action() == LFUN_INDEX_INSERT) {
 243                 docstring ds = subst(text->getStringToIndex(cur), '\n', ' ');
 244                 text->insertInset(cur, inset);
 245                 if (edit)
 246                         inset->edit(cur, true);
 247                 // Now put this into inset
 248                 Font const f(inherit_font, cur.current_font.language());
 249                 cur.text()->insertStringAsLines(cur, ds, f);
 250                 cur.leaveInset(*inset);
 251                 return true;
 252         }
 253
 254         bool gotsel = false;
 255         if (cur.selection()) {
 256                 cutSelection(cur, false, pastesel);
 257                 cur.clearSelection();
 258                 gotsel = true;
 259         }
 260         text->insertInset(cur, inset);
 261
 262         if (edit)
 263                 inset->edit(cur, true);
 264
 265         if (!gotsel || !pastesel)
 266                 return true;
 267
 268         pasteFromStack(cur, cur.buffer()->errorList("Paste"), 0);
 269         cur.buffer()->errors("Paste");
 270         cur.clearSelection(); // bug 393
 271         cur.finishUndo();
 272         InsetText * inset_text = inset->asInsetText();
 273         if (inset_text) {
 274                 inset_text->fixParagraphsFont();
 275                 if (!inset_text->allowMultiPar() || cur.lastpit() == 0) {
 276                         // reset first par to default
 277                         cur.text()->paragraphs().begin()
 278                                 ->setPlainOrDefaultLayout(bparams.documentClass());
 279                         cur.pos() = 0;
 280                         cur.pit() = 0;
 281                         // Merge multiple paragraphs -- hack
 282                         while (cur.lastpit() > 0)
 283                                 mergeParagraph(bparams, cur.text()->paragraphs(), 0);
 284                         cur.leaveInset(*inset);
 285                 }
 286         } else {
 287                 cur.leaveInset(*inset);
 288                 // reset surrounding par to default
 289                 DocumentClass const & dc = bparams.documentClass();
 290                 docstring const layoutname = inset->usePlainLayout()
 291                         ? dc.plainLayoutName()
 292                         : dc.defaultLayoutName();
 293                 text->setLayout(cur, layoutname);
 294         }
 295         return true;
 296 }
 297
 298
 299 string const freefont2string()
 300 {
 301         return freefont.toString(toggleall);
 302 }
 303
 304
 305 /// the type of outline operation
 306 enum OutlineOp {
 307         OutlineUp, // Move this header with text down
 308         OutlineDown,   // Move this header with text up
 309         OutlineIn, // Make this header deeper
 310         OutlineOut // Make this header shallower
 311 };
 312
 313
 314 static void outline(OutlineOp mode, Cursor & cur)
 315 {
 316         Buffer & buf = *cur.buffer();
 317         pit_type & pit = cur.pit();
 318         ParagraphList & pars = buf.text().paragraphs();
 319         ParagraphList::iterator const bgn = pars.begin();
 320         // The first paragraph of the area to be copied:
 321         ParagraphList::iterator start = boost::next(bgn, pit);
 322         // The final paragraph of area to be copied:
 323         ParagraphList::iterator finish = start;
 324         ParagraphList::iterator const end = pars.end();
 325
 326         DocumentClass const & tc = buf.params().documentClass();
 327
 328         int const thistoclevel = start->layout().toclevel;
 329         int toclevel;
 330
 331         // Move out (down) from this section header
 332         if (finish != end)
 333                 ++finish;
 334
 335         // Seek the one (on same level) below
 336         for (; finish != end; ++finish) {
 337                 toclevel = finish->layout().toclevel;
 338                 if (toclevel != Layout::NOT_IN_TOC && toclevel <= thistoclevel)
 339                         break;
 340         }
 341
 342         switch (mode) {
 343                 case OutlineUp: {
 344                         if (start == pars.begin())
 345                                 // Nothing to move.
 346                                 return;
 347                         ParagraphList::iterator dest = start;
 348                         // Move out (up) from this header
 349                         if (dest == bgn)
 350                                 return;
 351                         // Search previous same-level header above
 352                         do {
 353                                 --dest;
 354                                 toclevel = dest->layout().toclevel;
 355                         } while(dest != bgn
 356                                 && (toclevel == Layout::NOT_IN_TOC
 357                                     || toclevel > thistoclevel));
 358                         // Not found; do nothing
 359                         if (toclevel == Layout::NOT_IN_TOC || toclevel > thistoclevel)
 360                                 return;
 361                         pit_type const newpit = distance(bgn, dest);
 362                         pit_type const len = distance(start, finish);
 363                         pit_type const deletepit = pit + len;
 364                         buf.undo().recordUndo(cur, ATOMIC_UNDO, newpit, deletepit - 1);
 365                         pars.splice(dest, start, finish);
 366                         cur.pit() = newpit;
 367                         break;
 368                 }
 369                 case OutlineDown: {
 370                         if (finish == end)
 371                                 // Nothing to move.
 372                                 return;
 373                         // Go one down from *this* header:
 374                         ParagraphList::iterator dest = boost::next(finish, 1);
 375                         // Go further down to find header to insert in front of:
 376                         for (; dest != end; ++dest) {
 377                                 toclevel = dest->layout().toclevel;
 378                                 if (toclevel != Layout::NOT_IN_TOC
 379                                       && toclevel <= thistoclevel)
 380                                         break;
 381                         }
 382                         // One such was found:
 383                         pit_type newpit = distance(bgn, dest);
 384                         buf.undo().recordUndo(cur, ATOMIC_UNDO, pit, newpit - 1);
 385                         pit_type const len = distance(start, finish);
 386                         pars.splice(dest, start, finish);
 387                         cur.pit() = newpit - len;
 388                         break;
 389                 }
 390                 case OutlineIn: {
 391                         pit_type const len = distance(start, finish);
 392                         buf.undo().recordUndo(cur, ATOMIC_UNDO, pit, pit + len - 1);
 393                         for (; start != finish; ++start) {
 394                                 toclevel = start->layout().toclevel;
 395                                 if (toclevel == Layout::NOT_IN_TOC)
 396                                         continue;
 397                                 DocumentClass::const_iterator lit = tc.begin();
 398                                 DocumentClass::const_iterator len = tc.end();
 399                                 for (; lit != len; ++lit) {
 400                                         if (lit->toclevel == toclevel + 1 &&
 401                                             start->layout().labeltype == lit->labeltype) {
 402                                                 start->setLayout(*lit);
 403                                                 break;
 404                                         }
 405                                 }
 406                         }
 407                         break;
 408                 }
 409                 case OutlineOut: {
 410                         pit_type const len = distance(start, finish);
 411                         buf.undo().recordUndo(cur, ATOMIC_UNDO, pit, pit + len - 1);
 412                         for (; start != finish; ++start) {
 413                                 toclevel = start->layout().toclevel;
 414                                 if (toclevel == Layout::NOT_IN_TOC)
 415                                         continue;
 416                                 DocumentClass::const_iterator lit = tc.begin();
 417                                 DocumentClass::const_iterator len = tc.end();
 418                                 for (; lit != len; ++lit) {
 419                                         if (lit->toclevel == toclevel - 1 &&
 420                                                 start->layout().labeltype == lit->labeltype) {
 421                                                         start->setLayout(*lit);
 422                                                         break;
 423                                         }
 424                                 }
 425                         }
 426                         break;
 427                 }
 428         }
 429 }
 430
 431
 432 void Text::number(Cursor & cur)
 433 {
 434         FontInfo font = ignore_font;
 435         font.setNumber(FONT_TOGGLE);
 436         toggleAndShow(cur, this, Font(font, ignore_language));
 437 }
 438
 439
 440 bool Text::isRTL(Paragraph const & par) const
 441 {
 442         Buffer const & buffer = owner_->buffer();
 443         return par.isRTL(buffer.params());
 444 }
 445
 446
 447 void Text::dispatch(Cursor & cur, FuncRequest & cmd)
 448 {
 449         LYXERR(Debug::ACTION, "Text::dispatch: cmd: " << cmd);
 450
 451         // Dispatch if the cursor is inside the text. It is not the
 452         // case for context menus (bug 5797).
 453         if (cur.text() != this) {
 454                 cur.undispatched();
 455                 return;
 456         }
 457
 458         BufferView * bv = &cur.bv();
 459         TextMetrics * tm = &bv->textMetrics(this);
 460         if (!tm->contains(cur.pit())) {
 461                 lyx::dispatch(FuncRequest(LFUN_SCREEN_SHOW_CURSOR));
 462                 tm = &bv->textMetrics(this);
 463         }
 464
 465         // FIXME: We use the update flag to indicates wether a singlePar or a
 466         // full screen update is needed. We reset it here but shall we restore it
 467         // at the end?
 468         cur.noScreenUpdate();
 469
 470         LASSERT(cur.text() == this, /**/);
 471         CursorSlice const oldTopSlice = cur.top();
 472         bool const oldBoundary = cur.boundary();
 473         bool const oldSelection = cur.selection();
 474         // Signals that, even if needsUpdate == false, an update of the
 475         // cursor paragraph is required
 476         bool singleParUpdate = lyxaction.funcHasFlag(cmd.action(),
 477                 LyXAction::SingleParUpdate);
 478         // Signals that a full-screen update is required
 479         bool needsUpdate = !(lyxaction.funcHasFlag(cmd.action(),
 480                 LyXAction::NoUpdate) || singleParUpdate);
 481         bool const last_misspelled = lyxrc.spellcheck_continuously
 482                 && cur.paragraph().isMisspelled(cur.pos(), true);
 483
 484         FuncCode const act = cmd.action();
 485         switch (act) {
 486
 487         case LFUN_PARAGRAPH_MOVE_DOWN: {
 488                 pit_type const pit = cur.pit();
 489                 recUndo(cur, pit, pit + 1);
 490                 cur.finishUndo();
 491                 pars_.swap(pit, pit + 1);
 492                 needsUpdate = true;
 493                 cur.forceBufferUpdate();
 494                 ++cur.pit();
 495                 break;
 496         }
 497
 498         case LFUN_PARAGRAPH_MOVE_UP: {
 499                 pit_type const pit = cur.pit();
 500                 recUndo(cur, pit - 1, pit);
 501                 cur.finishUndo();
 502                 pars_.swap(pit, pit - 1);
 503                 --cur.pit();
 504                 needsUpdate = true;
 505                 cur.forceBufferUpdate();
 506                 break;
 507         }
 508
 509         case LFUN_APPENDIX: {
 510                 Paragraph & par = cur.paragraph();
 511                 bool start = !par.params().startOfAppendix();
 512
 513 // FIXME: The code below only makes sense at top level.
 514 // Should LFUN_APPENDIX be restricted to top-level paragraphs?
 515                 // ensure that we have only one start_of_appendix in this document
 516                 // FIXME: this don't work for multipart document!
 517                 for (pit_type tmp = 0, end = pars_.size(); tmp != end; ++tmp) {
 518                         if (pars_[tmp].params().startOfAppendix()) {
 519                                 recUndo(cur, tmp);
 520                                 pars_[tmp].params().startOfAppendix(false);
 521                                 break;
 522                         }
 523                 }
 524
 525                 cur.recordUndo();
 526                 par.params().startOfAppendix(start);
 527
 528                 // we can set the refreshing parameters now
 529                 cur.forceBufferUpdate();
 530                 break;
 531         }
 532
 533         case LFUN_WORD_DELETE_FORWARD:
 534                 if (cur.selection())
 535                         cutSelection(cur, true, false);
 536                 else
 537                         deleteWordForward(cur);
 538                 finishChange(cur, false);
 539                 break;
 540
 541         case LFUN_WORD_DELETE_BACKWARD:
 542                 if (cur.selection())
 543                         cutSelection(cur, true, false);
 544                 else
 545                         deleteWordBackward(cur);
 546                 finishChange(cur, false);
 547                 break;
 548
 549         case LFUN_LINE_DELETE:
 550                 if (cur.selection())
 551                         cutSelection(cur, true, false);
 552                 else
 553                         tm->deleteLineForward(cur);
 554                 finishChange(cur, false);
 555                 break;
 556
 557         case LFUN_BUFFER_BEGIN:
 558         case LFUN_BUFFER_BEGIN_SELECT:
 559                 needsUpdate |= cur.selHandle(act == LFUN_BUFFER_BEGIN_SELECT);
 560                 if (cur.depth() == 1)
 561                         needsUpdate |= cursorTop(cur);
 562                 else
 563                         cur.undispatched();
 564                 cur.screenUpdateFlags(Update::FitCursor);
 565                 break;
 566
 567         case LFUN_BUFFER_END:
 568         case LFUN_BUFFER_END_SELECT:
 569                 needsUpdate |= cur.selHandle(act == LFUN_BUFFER_END_SELECT);
 570                 if (cur.depth() == 1)
 571                         needsUpdate |= cursorBottom(cur);
 572                 else
 573                         cur.undispatched();
 574                 cur.screenUpdateFlags(Update::FitCursor);
 575                 break;
 576
 577         case LFUN_INSET_BEGIN:
 578         case LFUN_INSET_BEGIN_SELECT:
 579                 needsUpdate |= cur.selHandle(act == LFUN_INSET_BEGIN_SELECT);
 580                 if (cur.depth() == 1 || !cur.top().at_begin())
 581                         needsUpdate |= cursorTop(cur);
 582                 else
 583                         cur.undispatched();
 584                 cur.screenUpdateFlags(Update::FitCursor);
 585                 break;
 586
 587         case LFUN_INSET_END:
 588         case LFUN_INSET_END_SELECT:
 589                 needsUpdate |= cur.selHandle(act == LFUN_INSET_END_SELECT);
 590                 if (cur.depth() == 1 || !cur.top().at_end())
 591                         needsUpdate |= cursorBottom(cur);
 592                 else
 593                         cur.undispatched();
 594                 cur.screenUpdateFlags(Update::FitCursor);
 595                 break;
 596
 597         case LFUN_INSET_SELECT_ALL:
 598                 if (cur.depth() == 1 || !cur.selection() || !cur.selBegin().at_begin()
 599                           || !cur.selEnd().at_end()) {
 600                         needsUpdate |= cur.selHandle(false);
 601                         needsUpdate |= cursorTop(cur);
 602                         needsUpdate |= cur.selHandle(true);
 603                         needsUpdate |= cursorBottom(cur);
 604                 } else
 605                         cur.undispatched();
 606                 cur.screenUpdateFlags(Update::FitCursor);
 607                 break;
 608
 609         case LFUN_CHAR_FORWARD:
 610         case LFUN_CHAR_FORWARD_SELECT:
 611                 //LYXERR0(" LFUN_CHAR_FORWARD[SEL]:\n" << cur);
 612                 needsUpdate |= cur.selHandle(act == LFUN_CHAR_FORWARD_SELECT);
 613                 needsUpdate |= cursorForward(cur);
 614
 615                 if (!needsUpdate && oldTopSlice == cur.top()
 616                                 && cur.boundary() == oldBoundary) {
 617                         cur.undispatched();
 618                         cmd = FuncRequest(LFUN_FINISHED_FORWARD);
 619
 620                         // we will probably be moving out the inset, so we should execute
 621                         // the depm-mechanism, but only when the cursor has a place to
 622                         // go outside this inset, i.e. in a slice above.
 623                         if (cur.depth() > 1 && cur.pos() == cur.lastpos()
 624                                   && cur.pit() == cur.lastpit()) {
 625                                 // The cursor hasn't changed yet. To give the
 626                                 // DEPM the possibility of doing something we must
 627                                 // provide it with two different cursors.
 628                                 Cursor dummy = cur;
 629                                 dummy.pos() = dummy.pit() = 0;
 630                                 if (cur.bv().checkDepm(dummy, cur))
 631                                         cur.forceBufferUpdate();
 632                         }
 633                 }
 634                 break;
 635
 636         case LFUN_CHAR_BACKWARD:
 637         case LFUN_CHAR_BACKWARD_SELECT:
 638                 //lyxerr << "handle LFUN_CHAR_BACKWARD[_SELECT]:\n" << cur << endl;
 639                 needsUpdate |= cur.selHandle(act == LFUN_CHAR_BACKWARD_SELECT);
 640                 needsUpdate |= cursorBackward(cur);
 641
 642                 if (!needsUpdate && oldTopSlice == cur.top()
 643                         && cur.boundary() == oldBoundary) {
 644                         cur.undispatched();
 645                         cmd = FuncRequest(LFUN_FINISHED_BACKWARD);
 646
 647                         // we will probably be moving out the inset, so we should execute
 648                         // the depm-mechanism, but only when the cursor has a place to
 649                         // go outside this inset, i.e. in a slice above.
 650                         if (cur.depth() > 1 && cur.pos() == 0 && cur.pit() == 0) {
 651                                 // The cursor hasn't changed yet. To give the
 652                                 // DEPM the possibility of doing something we must
 653                                 // provide it with two different cursors.
 654                                 Cursor dummy = cur;
 655                                 dummy.pos() = cur.lastpos();
 656                                 dummy.pit() = cur.lastpit();
 657                                 if (cur.bv().checkDepm(dummy, cur))
 658                                         cur.forceBufferUpdate();
 659                         }
 660                 }
 661                 break;
 662
 663         case LFUN_CHAR_LEFT:
 664         case LFUN_CHAR_LEFT_SELECT:
 665                 if (lyxrc.visual_cursor) {
 666                         needsUpdate |= cur.selHandle(act == LFUN_CHAR_LEFT_SELECT);
 667                         needsUpdate |= cursorVisLeft(cur);
 668                         if (!needsUpdate && oldTopSlice == cur.top()
 669                                         && cur.boundary() == oldBoundary) {
 670                                 cur.undispatched();
 671                                 cmd = FuncRequest(LFUN_FINISHED_LEFT);
 672                         }
 673                 } else {
 674                         if (reverseDirectionNeeded(cur)) {
 675                                 cmd.setAction(cmd.action() == LFUN_CHAR_LEFT_SELECT ?
 676                                         LFUN_CHAR_FORWARD_SELECT : LFUN_CHAR_FORWARD);
 677                         } else {
 678                                 cmd.setAction(cmd.action() == LFUN_CHAR_LEFT_SELECT ?
 679                                         LFUN_CHAR_BACKWARD_SELECT : LFUN_CHAR_BACKWARD);
 680                         }
 681                         dispatch(cur, cmd);
 682                         return;
 683                 }
 684                 break;
 685
 686         case LFUN_CHAR_RIGHT:
 687         case LFUN_CHAR_RIGHT_SELECT:
 688                 if (lyxrc.visual_cursor) {
 689                         needsUpdate |= cur.selHandle(cmd.action() == LFUN_CHAR_RIGHT_SELECT);
 690                         needsUpdate |= cursorVisRight(cur);
 691                         if (!needsUpdate && oldTopSlice == cur.top()
 692                                         && cur.boundary() == oldBoundary) {
 693                                 cur.undispatched();
 694                                 cmd = FuncRequest(LFUN_FINISHED_RIGHT);
 695                         }
 696                 } else {
 697                         if (reverseDirectionNeeded(cur)) {
 698                                 cmd.setAction(cmd.action() == LFUN_CHAR_RIGHT_SELECT ?
 699                                         LFUN_CHAR_BACKWARD_SELECT : LFUN_CHAR_BACKWARD);
 700                         } else {
 701                                 cmd.setAction(cmd.action() == LFUN_CHAR_RIGHT_SELECT ?
 702                                         LFUN_CHAR_FORWARD_SELECT : LFUN_CHAR_FORWARD);
 703                         }
 704                         dispatch(cur, cmd);
 705                         return;
 706                 }
 707                 break;
 708
 709
 710         case LFUN_UP_SELECT:
 711         case LFUN_DOWN_SELECT:
 712         case LFUN_UP:
 713         case LFUN_DOWN: {
 714                 // stop/start the selection
 715                 bool select = cmd.action() == LFUN_DOWN_SELECT ||
 716                         cmd.action() == LFUN_UP_SELECT;
 717
 718                 // move cursor up/down
 719                 bool up = cmd.action() == LFUN_UP_SELECT || cmd.action() == LFUN_UP;
 720                 bool const atFirstOrLastRow = cur.atFirstOrLastRow(up);
 721
 722                 if (!atFirstOrLastRow) {
 723                         needsUpdate |= cur.selHandle(select);
 724                         cur.selHandle(select);
 725                         cur.upDownInText(up, needsUpdate);
 726                         needsUpdate |= cur.beforeDispatchCursor().inMathed();
 727                 } else {
 728                         // if the cursor cannot be moved up or down do not remove
 729                         // the selection right now, but wait for the next dispatch.
 730                         if (select)
 731                                 needsUpdate |= cur.selHandle(select);
 732                         cur.upDownInText(up, needsUpdate);
 733                         cur.undispatched();
 734                 }
 735
 736                 break;
 737         }
 738
 739         case LFUN_PARAGRAPH_UP:
 740         case LFUN_PARAGRAPH_UP_SELECT:
 741                 needsUpdate |= cur.selHandle(cmd.action() == LFUN_PARAGRAPH_UP_SELECT);
 742                 needsUpdate |= cursorUpParagraph(cur);
 743                 break;
 744
 745         case LFUN_PARAGRAPH_DOWN:
 746         case LFUN_PARAGRAPH_DOWN_SELECT:
 747                 needsUpdate |= cur.selHandle(cmd.action() == LFUN_PARAGRAPH_DOWN_SELECT);
 748                 needsUpdate |= cursorDownParagraph(cur);
 749                 break;
 750
 751         case LFUN_LINE_BEGIN:
 752         case LFUN_LINE_BEGIN_SELECT:
 753                 needsUpdate |= cur.selHandle(cmd.action() == LFUN_LINE_BEGIN_SELECT);
 754                 needsUpdate |= tm->cursorHome(cur);
 755                 break;
 756
 757         case LFUN_LINE_END:
 758         case LFUN_LINE_END_SELECT:
 759                 needsUpdate |= cur.selHandle(cmd.action() == LFUN_LINE_END_SELECT);
 760                 needsUpdate |= tm->cursorEnd(cur);
 761                 break;
 762
 763         case LFUN_SECTION_SELECT: {
 764                 Buffer const & buf = *cur.buffer();
 765                 pit_type const pit = cur.pit();
 766                 ParagraphList & pars = buf.text().paragraphs();
 767                 ParagraphList::iterator bgn = pars.begin();
 768                 // The first paragraph of the area to be selected:
 769                 ParagraphList::iterator start = boost::next(bgn, pit);
 770                 // The final paragraph of area to be selected:
 771                 ParagraphList::iterator finish = start;
 772                 ParagraphList::iterator end = pars.end();
 773
 774                 int const thistoclevel = start->layout().toclevel;
 775                 if (thistoclevel == Layout::NOT_IN_TOC)
 776                         break;
 777
 778                 cur.pos() = 0;
 779                 Cursor const old_cur = cur;
 780                 needsUpdate |= cur.selHandle(true);
 781
 782                 // Move out (down) from this section header
 783                 if (finish != end)
 784                         ++finish;
 785
 786                 // Seek the one (on same level) below
 787                 for (; finish != end; ++finish, ++cur.pit()) {
 788                         int const toclevel = finish->layout().toclevel;
 789                         if (toclevel != Layout::NOT_IN_TOC && toclevel <= thistoclevel)
 790                                 break;
 791                 }
 792                 cur.pos() = cur.lastpos();
 793
 794                 needsUpdate |= cur != old_cur;
 795                 break;
 796         }
 797
 798         case LFUN_WORD_RIGHT:
 799         case LFUN_WORD_RIGHT_SELECT:
 800                 if (lyxrc.visual_cursor) {
 801                         needsUpdate |= cur.selHandle(cmd.action() == LFUN_WORD_RIGHT_SELECT);
 802                         needsUpdate |= cursorVisRightOneWord(cur);
 803                         if (!needsUpdate && oldTopSlice == cur.top()
 804                                         && cur.boundary() == oldBoundary) {
 805                                 cur.undispatched();
 806                                 cmd = FuncRequest(LFUN_FINISHED_RIGHT);
 807                         }
 808                 } else {
 809                         if (reverseDirectionNeeded(cur)) {
 810                                 cmd.setAction(cmd.action() == LFUN_WORD_RIGHT_SELECT ?
 811                                                 LFUN_WORD_BACKWARD_SELECT : LFUN_WORD_BACKWARD);
 812                         } else {
 813                                 cmd.setAction(cmd.action() == LFUN_WORD_RIGHT_SELECT ?
 814                                                 LFUN_WORD_FORWARD_SELECT : LFUN_WORD_FORWARD);
 815                         }
 816                         dispatch(cur, cmd);
 817                         return;
 818                 }
 819                 break;
 820
 821         case LFUN_WORD_FORWARD:
 822         case LFUN_WORD_FORWARD_SELECT:
 823                 needsUpdate |= cur.selHandle(cmd.action() == LFUN_WORD_FORWARD_SELECT);
 824                 needsUpdate |= cursorForwardOneWord(cur);
 825
 826                 if (!needsUpdate && oldTopSlice == cur.top()
 827                                 && cur.boundary() == oldBoundary) {
 828                         cur.undispatched();
 829                         cmd = FuncRequest(LFUN_FINISHED_FORWARD);
 830
 831                         // we will probably be moving out the inset, so we should execute
 832                         // the depm-mechanism, but only when the cursor has a place to
 833                         // go outside this inset, i.e. in a slice above.
 834                         if (cur.depth() > 1 && cur.pos() == cur.lastpos()
 835                                   && cur.pit() == cur.lastpit()) {
 836                                 // The cursor hasn't changed yet. To give the
 837                                 // DEPM the possibility of doing something we must
 838                                 // provide it with two different cursors.
 839                                 Cursor dummy = cur;
 840                                 dummy.pos() = dummy.pit() = 0;
 841                                 if (cur.bv().checkDepm(dummy, cur))
 842                                         cur.forceBufferUpdate();
 843                         }
 844                 }
 845                 break;
 846
 847         case LFUN_WORD_LEFT:
 848         case LFUN_WORD_LEFT_SELECT:
 849                 if (lyxrc.visual_cursor) {
 850                         needsUpdate |= cur.selHandle(cmd.action() == LFUN_WORD_LEFT_SELECT);
 851                         needsUpdate |= cursorVisLeftOneWord(cur);
 852                         if (!needsUpdate && oldTopSlice == cur.top()
 853                                         && cur.boundary() == oldBoundary) {
 854                                 cur.undispatched();
 855                                 cmd = FuncRequest(LFUN_FINISHED_LEFT);
 856                         }
 857                 } else {
 858                         if (reverseDirectionNeeded(cur)) {
 859                                 cmd.setAction(cmd.action() == LFUN_WORD_LEFT_SELECT ?
 860                                                 LFUN_WORD_FORWARD_SELECT : LFUN_WORD_FORWARD);
 861                         } else {
 862                                 cmd.setAction(cmd.action() == LFUN_WORD_LEFT_SELECT ?
 863                                                 LFUN_WORD_BACKWARD_SELECT : LFUN_WORD_BACKWARD);
 864                         }
 865                         dispatch(cur, cmd);
 866                         return;
 867                 }
 868                 break;
 869
 870         case LFUN_WORD_BACKWARD:
 871         case LFUN_WORD_BACKWARD_SELECT:
 872                 needsUpdate |= cur.selHandle(cmd.action() == LFUN_WORD_BACKWARD_SELECT);
 873                 needsUpdate |= cursorBackwardOneWord(cur);
 874
 875                 if (!needsUpdate && oldTopSlice == cur.top()
 876                                 && cur.boundary() == oldBoundary) {
 877                         cur.undispatched();
 878                         cmd = FuncRequest(LFUN_FINISHED_BACKWARD);
 879
 880                         // we will probably be moving out the inset, so we should execute
 881                         // the depm-mechanism, but only when the cursor has a place to
 882                         // go outside this inset, i.e. in a slice above.
 883                         if (cur.depth() > 1 && cur.pos() == 0
 884                                   && cur.pit() == 0) {
 885                                 // The cursor hasn't changed yet. To give the
 886                                 // DEPM the possibility of doing something we must
 887                                 // provide it with two different cursors.
 888                                 Cursor dummy = cur;
 889                                 dummy.pos() = cur.lastpos();
 890                                 dummy.pit() = cur.lastpit();
 891                                 if (cur.bv().checkDepm(dummy, cur))
 892                                         cur.forceBufferUpdate();
 893                         }
 894                 }
 895                 break;
 896
 897         case LFUN_WORD_SELECT: {
 898                 selectWord(cur, WHOLE_WORD);
 899                 finishChange(cur, true);
 900                 break;
 901         }
 902
 903         case LFUN_NEWLINE_INSERT: {
 904                 InsetNewlineParams inp;
 905                 docstring arg = cmd.argument();
 906                 // this avoids a double undo
 907                 // FIXME: should not be needed, ideally
 908                 if (!cur.selection())
 909                         cur.recordUndo();
 910                 cap::replaceSelection(cur);
 911                 if (arg == "linebreak")
 912                         inp.kind = InsetNewlineParams::LINEBREAK;
 913                 else
 914                         inp.kind = InsetNewlineParams::NEWLINE;
 915                 cur.insert(new InsetNewline(inp));
 916                 cur.posForward();
 917                 moveCursor(cur, false);
 918                 break;
 919         }
 920
 921         case LFUN_TAB_INSERT: {
 922                 bool const multi_par_selection = cur.selection() &&
 923                         cur.selBegin().pit() != cur.selEnd().pit();
 924                 if (multi_par_selection) {
 925                         // If there is a multi-paragraph selection, a tab is inserted
 926                         // at the beginning of each paragraph.
 927                         cur.recordUndoSelection();
 928                         pit_type const pit_end = cur.selEnd().pit();
 929                         for (pit_type pit = cur.selBegin().pit(); pit <= pit_end; pit++) {
 930                                 pars_[pit].insertChar(0, '\t',
 931                                                       bv->buffer().params().trackChanges);
 932                                 // Update the selection pos to make sure the selection does not
 933                                 // change as the inserted tab will increase the logical pos.
 934                                 if (cur.realAnchor().pit() == pit)
 935                                         cur.realAnchor().forwardPos();
 936                                 if (cur.pit() == pit)
 937                                         cur.forwardPos();
 938                         }
 939                         cur.finishUndo();
 940                 } else {
 941                         // Maybe we shouldn't allow tabs within a line, because they
 942                         // are not (yet) aligned as one might do expect.
 943                         FuncRequest cmd(LFUN_SELF_INSERT, from_ascii("\t"));
 944                         dispatch(cur, cmd);
 945                 }
 946                 break;
 947         }
 948
 949         case LFUN_TAB_DELETE: {
 950                 bool const tc = bv->buffer().params().trackChanges;
 951                 if (cur.selection()) {
 952                         // If there is a selection, a tab (if present) is removed from
 953                         // the beginning of each paragraph.
 954                         cur.recordUndoSelection();
 955                         pit_type const pit_end = cur.selEnd().pit();
 956                         for (pit_type pit = cur.selBegin().pit(); pit <= pit_end; pit++) {
 957                                 Paragraph & par = paragraphs()[pit];
 958                                 if (par.empty())
 959                                         continue;
 960                                 char_type const c = par.getChar(0);
 961                                 if (c == '\t' || c == ' ') {
 962                                         // remove either 1 tab or 4 spaces.
 963                                         int const n = (c == ' ' ? 4 : 1);
 964                                         for (int i = 0; i < n
 965                                                   && !par.empty() && par.getChar(0) == c; ++i) {
 966                                                 if (cur.pit() == pit)
 967                                                         cur.posBackward();
 968                                                 if (cur.realAnchor().pit() == pit
 969                                                           && cur.realAnchor().pos() > 0 )
 970                                                         cur.realAnchor().backwardPos();
 971                                                 par.eraseChar(0, tc);
 972                                         }
 973                                 }
 974                         }
 975                         cur.finishUndo();
 976                 } else {
 977                         // If there is no selection, try to remove a tab or some spaces
 978                         // before the position of the cursor.
 979                         Paragraph & par = paragraphs()[cur.pit()];
 980                         pos_type const pos = cur.pos();
 981
 982                         if (pos == 0)
 983                                 break;
 984
 985                         char_type const c = par.getChar(pos - 1);
 986                         cur.recordUndo();
 987                         if (c == '\t') {
 988                                 cur.posBackward();
 989                                 par.eraseChar(cur.pos(), tc);
 990                         } else
 991                                 for (int n_spaces = 0;
 992                                      cur.pos() > 0
 993                                              && par.getChar(cur.pos() - 1) == ' '
 994                                              && n_spaces < 4;
 995                                      ++n_spaces) {
 996                                         cur.posBackward();
 997                                         par.eraseChar(cur.pos(), tc);
 998                                 }
 999                         cur.finishUndo();
1000                 }
1001                 break;
1002         }
1003
1004         case LFUN_CHAR_DELETE_FORWARD:
1005                 if (!cur.selection()) {
1006                         if (cur.pos() == cur.paragraph().size())
1007                                 // Par boundary, force full-screen update
1008                                 singleParUpdate = false;
1009                         needsUpdate |= erase(cur);
1010                         cur.resetAnchor();
1011                         // It is possible to make it a lot faster still
1012                         // just comment out the line below...
1013                 } else {
1014                         cutSelection(cur, true, false);
1015                         singleParUpdate = false;
1016                 }
1017                 moveCursor(cur, false);
1018                 break;
1019
1020         case LFUN_CHAR_DELETE_BACKWARD:
1021                 if (!cur.selection()) {
1022                         if (bv->getIntl().getTransManager().backspace()) {
1023                                 // Par boundary, full-screen update
1024                                 if (cur.pos() == 0)
1025                                         singleParUpdate = false;
1026                                 needsUpdate |= backspace(cur);
1027                                 cur.resetAnchor();
1028                                 // It is possible to make it a lot faster still
1029                                 // just comment out the line below...
1030                         }
1031                 } else {
1032                         cutSelection(cur, true, false);
1033                         singleParUpdate = false;
1034                 }
1035                 break;
1036
1037         case LFUN_BREAK_PARAGRAPH:
1038                 cap::replaceSelection(cur);
1039                 breakParagraph(cur, cmd.argument() == "inverse");
1040                 cur.resetAnchor();
1041                 break;
1042
1043         case LFUN_INSET_INSERT: {
1044                 cur.recordUndo();
1045
1046                 // We have to avoid triggering InstantPreview loading
1047                 // before inserting into the document. See bug #5626.
1048                 bool loaded = bv->buffer().isFullyLoaded();
1049                 bv->buffer().setFullyLoaded(false);
1050                 Inset * inset = createInset(&bv->buffer(), cmd);
1051                 bv->buffer().setFullyLoaded(loaded);
1052
1053                 if (inset) {
1054                         // FIXME (Abdel 01/02/2006):
1055                         // What follows would be a partial fix for bug 2154:
1056                         //   http://www.lyx.org/trac/ticket/2154
1057                         // This automatically put the label inset _after_ a
1058                         // numbered section. It should be possible to extend the mechanism
1059                         // to any kind of LateX environement.
1060                         // The correct way to fix that bug would be at LateX generation.
1061                         // I'll let the code here for reference as it could be used for some
1062                         // other feature like "automatic labelling".
1063                         /*
1064                         Paragraph & par = pars_[cur.pit()];
1065                         if (inset->lyxCode() == LABEL_CODE
1066                                 && par.layout().labeltype == LABEL_COUNTER) {
1067                                 // Go to the end of the paragraph
1068                                 // Warning: Because of Change-Tracking, the last
1069                                 // position is 'size()' and not 'size()-1':
1070                                 cur.pos() = par.size();
1071                                 // Insert a new paragraph
1072                                 FuncRequest fr(LFUN_BREAK_PARAGRAPH);
1073                                 dispatch(cur, fr);
1074                         }
1075                         */
1076                         if (cur.selection())
1077                                 cutSelection(cur, true, false);
1078                         cur.insert(inset);
1079                         if (inset->editable() && inset->asInsetText())
1080                                 inset->edit(cur, true);
1081                         else
1082                                 cur.posForward();
1083
1084                         // trigger InstantPreview now
1085                         if (inset->lyxCode() == EXTERNAL_CODE) {
1086                                 InsetExternal & ins =
1087                                         static_cast<InsetExternal &>(*inset);
1088                                 ins.updatePreview();
1089                         }
1090                 }
1091
1092                 break;
1093         }
1094
1095         case LFUN_INSET_DISSOLVE: {
1096                 if (dissolveInset(cur)) {
1097                         needsUpdate = true;
1098                         cur.forceBufferUpdate();
1099                 }
1100                 break;
1101         }
1102
1103         case LFUN_SET_GRAPHICS_GROUP: {
1104                 InsetGraphics * ins = graphics::getCurrentGraphicsInset(cur);
1105                 if (!ins)
1106                         break;
1107
1108                 cur.recordUndo();
1109
1110                 string id = to_utf8(cmd.argument());
1111                 string grp = graphics::getGroupParams(bv->buffer(), id);
1112                 InsetGraphicsParams tmp, inspar = ins->getParams();
1113
1114                 if (id.empty())
1115                         inspar.groupId = to_utf8(cmd.argument());
1116                 else {
1117                         InsetGraphics::string2params(grp, bv->buffer(), tmp);
1118                         tmp.filename = inspar.filename;
1119                         inspar = tmp;
1120                 }
1121
1122                 ins->setParams(inspar);
1123         }
1124
1125         case LFUN_SPACE_INSERT:
1126                 if (cur.paragraph().layout().free_spacing)
1127                         insertChar(cur, ' ');
1128                 else {
1129                         doInsertInset(cur, this, cmd, false, false);
1130                         cur.posForward();
1131                 }
1132                 moveCursor(cur, false);
1133                 break;
1134
1135         case LFUN_SPECIALCHAR_INSERT: {
1136                 string const name = to_utf8(cmd.argument());
1137                 if (name == "hyphenation")
1138                         specialChar(cur, InsetSpecialChar::HYPHENATION);
1139                 else if (name == "ligature-break")
1140                         specialChar(cur, InsetSpecialChar::LIGATURE_BREAK);
1141                 else if (name == "slash")
1142                         specialChar(cur, InsetSpecialChar::SLASH);
1143                 else if (name == "nobreakdash")
1144                         specialChar(cur, InsetSpecialChar::NOBREAKDASH);
1145                 else if (name == "dots")
1146                         specialChar(cur, InsetSpecialChar::LDOTS);
1147                 else if (name == "end-of-sentence")
1148                         specialChar(cur, InsetSpecialChar::END_OF_SENTENCE);
1149                 else if (name == "menu-separator")
1150                         specialChar(cur, InsetSpecialChar::MENU_SEPARATOR);
1151                 else if (name.empty())
1152                         lyxerr << "LyX function 'specialchar-insert' needs an argument." << endl;
1153                 else
1154                         lyxerr << "Wrong argument for LyX function 'specialchar-insert'." << endl;
1155                 break;
1156         }
1157
1158         case LFUN_WORD_UPCASE:
1159                 changeCase(cur, text_uppercase);
1160                 break;
1161
1162         case LFUN_WORD_LOWCASE:
1163                 changeCase(cur, text_lowercase);
1164                 break;
1165
1166         case LFUN_WORD_CAPITALIZE:
1167                 changeCase(cur, text_capitalization);
1168                 break;
1169
1170         case LFUN_CHARS_TRANSPOSE:
1171                 charsTranspose(cur);
1172                 break;
1173
1174         case LFUN_PASTE: {
1175                 cur.message(_("Paste"));
1176                 LASSERT(cur.selBegin().idx() == cur.selEnd().idx(), /**/);
1177                 cap::replaceSelection(cur);
1178
1179                 // without argument?
1180                 string const arg = to_utf8(cmd.argument());
1181                 if (arg.empty()) {
1182                         if (theClipboard().isInternal())
1183                                 pasteFromStack(cur, bv->buffer().errorList("Paste"), 0);
1184                         else if (theClipboard().hasGraphicsContents()
1185                                      && !theClipboard().hasTextContents())
1186                                 pasteClipboardGraphics(cur, bv->buffer().errorList("Paste"));
1187                         else
1188                                 pasteClipboardText(cur, bv->buffer().errorList("Paste"));
1189                 } else if (isStrUnsignedInt(arg)) {
1190                         // we have a numerical argument
1191                         pasteFromStack(cur, bv->buffer().errorList("Paste"),
1192                                        convert<unsigned int>(arg));
1193                 } else {
1194                         Clipboard::GraphicsType type = Clipboard::AnyGraphicsType;
1195                         if (arg == "pdf")
1196                                 type = Clipboard::PdfGraphicsType;
1197                         else if (arg == "png")
1198                                 type = Clipboard::PngGraphicsType;
1199                         else if (arg == "jpeg")
1200                                 type = Clipboard::JpegGraphicsType;
1201                         else if (arg == "linkback")
1202                                 type = Clipboard::LinkBackGraphicsType;
1203                         else if (arg == "emf")
1204                                 type = Clipboard::EmfGraphicsType;
1205                         else if (arg == "wmf")
1206                                 type = Clipboard::WmfGraphicsType;
1207
1208                         else
1209                                 LASSERT(false, /**/);
1210
1211                         pasteClipboardGraphics(cur, bv->buffer().errorList("Paste"), type);
1212                 }
1213
1214                 bv->buffer().errors("Paste");
1215                 cur.clearSelection(); // bug 393
1216                 cur.finishUndo();
1217                 break;
1218         }
1219
1220         case LFUN_CUT:
1221                 cutSelection(cur, true, true);
1222                 cur.message(_("Cut"));
1223                 break;
1224
1225         case LFUN_COPY:
1226                 copySelection(cur);
1227                 cur.message(_("Copy"));
1228                 break;
1229
1230         case LFUN_SERVER_GET_XY:
1231                 cur.message(from_utf8(
1232                         convert<string>(tm->cursorX(cur.top(), cur.boundary()))
1233                         + ' ' + convert<string>(tm->cursorY(cur.top(), cur.boundary()))));
1234                 break;
1235
1236         case LFUN_SERVER_SET_XY: {
1237                 int x = 0;
1238                 int y = 0;
1239                 istringstream is(to_utf8(cmd.argument()));
1240                 is >> x >> y;
1241                 if (!is)
1242                         lyxerr << "SETXY: Could not parse coordinates in '"
1243                                << to_utf8(cmd.argument()) << endl;
1244                 else
1245                         tm->setCursorFromCoordinates(cur, x, y);
1246                 break;
1247         }
1248
1249         case LFUN_SERVER_GET_LAYOUT:
1250                 cur.message(cur.paragraph().layout().name());
1251                 break;
1252
1253         case LFUN_LAYOUT: {
1254                 docstring layout = cmd.argument();
1255                 LYXERR(Debug::INFO, "LFUN_LAYOUT: (arg) " << to_utf8(layout));
1256
1257                 Paragraph const & para = cur.paragraph();
1258                 docstring const old_layout = para.layout().name();
1259                 DocumentClass const & tclass = bv->buffer().params().documentClass();
1260
1261                 if (layout.empty())
1262                         layout = tclass.defaultLayoutName();
1263
1264                 if (owner_->forcePlainLayout())
1265                         // in this case only the empty layout is allowed
1266                         layout = tclass.plainLayoutName();
1267                 else if (para.usePlainLayout()) {
1268                         // in this case, default layout maps to empty layout
1269                         if (layout == tclass.defaultLayoutName())
1270                                 layout = tclass.plainLayoutName();
1271                 } else {
1272                         // otherwise, the empty layout maps to the default
1273                         if (layout == tclass.plainLayoutName())
1274                                 layout = tclass.defaultLayoutName();
1275                 }
1276
1277                 bool hasLayout = tclass.hasLayout(layout);
1278
1279                 // If the entry is obsolete, use the new one instead.
1280                 if (hasLayout) {
1281                         docstring const & obs = tclass[layout].obsoleted_by();
1282                         if (!obs.empty())
1283                                 layout = obs;
1284                 }
1285
1286                 if (!hasLayout) {
1287                         cur.errorMessage(from_utf8(N_("Layout ")) + cmd.argument() +
1288                                 from_utf8(N_(" not known")));
1289                         break;
1290                 }
1291
1292                 bool change_layout = (old_layout != layout);
1293
1294                 if (!change_layout && cur.selection() &&
1295                         cur.selBegin().pit() != cur.selEnd().pit())
1296                 {
1297                         pit_type spit = cur.selBegin().pit();
1298                         pit_type epit = cur.selEnd().pit() + 1;
1299                         while (spit != epit) {
1300                                 if (pars_[spit].layout().name() != old_layout) {
1301                                         change_layout = true;
1302                                         break;
1303                                 }
1304                                 ++spit;
1305                         }
1306                 }
1307
1308                 if (change_layout)
1309                         setLayout(cur, layout);
1310
1311                 break;
1312         }
1313
1314         case LFUN_CLIPBOARD_PASTE:
1315                 cur.clearSelection();
1316                 pasteClipboardText(cur, bv->buffer().errorList("Paste"),
1317                                cmd.argument() == "paragraph");
1318                 bv->buffer().errors("Paste");
1319                 break;
1320
1321         case LFUN_PRIMARY_SELECTION_PASTE:
1322                 pasteString(cur, theSelection().get(),
1323                             cmd.argument() == "paragraph");
1324                 break;
1325
1326         case LFUN_SELECTION_PASTE:
1327                 // Copy the selection buffer to the clipboard stack,
1328                 // because we want it to appear in the "Edit->Paste
1329                 // recent" menu.
1330                 cap::copySelectionToStack();
1331                 cap::pasteSelection(bv->cursor(), bv->buffer().errorList("Paste"));
1332                 bv->buffer().errors("Paste");
1333                 break;
1334
1335         case LFUN_UNICODE_INSERT: {
1336                 if (cmd.argument().empty())
1337                         break;
1338                 docstring hexstring = cmd.argument();
1339                 if (isHex(hexstring)) {
1340                         char_type c = hexToInt(hexstring);
1341                         if (c >= 32 && c < 0x10ffff) {
1342                                 lyxerr << "Inserting c: " << c << endl;
1343                                 docstring s = docstring(1, c);
1344                                 lyx::dispatch(FuncRequest(LFUN_SELF_INSERT, s));
1345                         }
1346                 }
1347                 break;
1348         }
1349
1350         case LFUN_QUOTE_INSERT: {
1351                 // this avoids a double undo
1352                 // FIXME: should not be needed, ideally
1353                 if (!cur.selection())
1354                         cur.recordUndo();
1355                 cap::replaceSelection(cur);
1356
1357                 Paragraph const & par = cur.paragraph();
1358                 pos_type pos = cur.pos();
1359
1360                 BufferParams const & bufparams = bv->buffer().params();
1361                 bool const hebrew =
1362                         par.getFontSettings(bufparams, pos).language()->lang() == "hebrew";
1363                 bool const allow_inset_quote = !(par.isPassThru() || hebrew);
1364
1365                 if (allow_inset_quote) {
1366                         char_type c = ' ';
1367                         if (pos > 0 && (!cur.prevInset() || !cur.prevInset()->isSpace()))
1368                                 c = par.getChar(pos - 1);
1369                         string const arg = to_utf8(cmd.argument());
1370                         InsetQuotes::QuoteTimes const quote_type = (arg == "single")
1371                                 ? InsetQuotes::SingleQuotes : InsetQuotes::DoubleQuotes;
1372                         cur.insert(new InsetQuotes(cur.buffer(), c, quote_type));
1373                         cur.posForward();
1374                 } else {
1375                         // The cursor might have been invalidated by the replaceSelection.
1376                         cur.buffer()->changed(true);
1377                         lyx::dispatch(FuncRequest(LFUN_SELF_INSERT, "\""));
1378                 }
1379                 break;
1380         }
1381
1382         case LFUN_DATE_INSERT: {
1383                 string const format = cmd.argument().empty()
1384                         ? lyxrc.date_insert_format : to_utf8(cmd.argument());
1385                 string const time = formatted_time(current_time(), format);
1386                 lyx::dispatch(FuncRequest(LFUN_SELF_INSERT, time));
1387                 break;
1388         }
1389
1390         case LFUN_MOUSE_TRIPLE:
1391                 if (cmd.button() == mouse_button::button1) {
1392                         tm->cursorHome(cur);
1393                         cur.resetAnchor();
1394                         tm->cursorEnd(cur);
1395                         cur.setSelection();
1396                         bv->cursor() = cur;
1397                 }
1398                 break;
1399
1400         case LFUN_MOUSE_DOUBLE:
1401                 if (cmd.button() == mouse_button::button1) {
1402                         selectWord(cur, WHOLE_WORD_STRICT);
1403                         bv->cursor() = cur;
1404                 }
1405                 break;
1406
1407         // Single-click on work area
1408         case LFUN_MOUSE_PRESS: {
1409                 // We are not marking a selection with the keyboard in any case.
1410                 Cursor & bvcur = cur.bv().cursor();
1411                 bvcur.setMark(false);
1412                 switch (cmd.button()) {
1413                 case mouse_button::button1:
1414                         // Set the cursor
1415                         if (!bv->mouseSetCursor(cur, cmd.argument() == "region-select"))
1416                                 cur.screenUpdateFlags(Update::SinglePar | Update::FitCursor);
1417                         if (bvcur.wordSelection())
1418                                 selectWord(bvcur, WHOLE_WORD);
1419                         break;
1420
1421                 case mouse_button::button2:
1422                         // Middle mouse pasting.
1423                         bv->mouseSetCursor(cur);
1424                         lyx::dispatch(
1425                                 FuncRequest(LFUN_COMMAND_ALTERNATIVES,
1426                                             "selection-paste ; primary-selection-paste paragraph"));
1427                         cur.noScreenUpdate();
1428                         break;
1429
1430                 case mouse_button::button3: {
1431                         // Don't do anything if we right-click a
1432                         // selection, a context menu will popup.
1433                         if (bvcur.selection() && cur >= bvcur.selectionBegin()
1434                             && cur < bvcur.selectionEnd()) {
1435                                 cur.noScreenUpdate();
1436                                 return;
1437                         }
1438                         if (!bv->mouseSetCursor(cur, false))
1439                                 cur.screenUpdateFlags(Update::SinglePar | Update::FitCursor);
1440                         break;
1441                 }
1442
1443                 default:
1444                         break;
1445                 } // switch (cmd.button())
1446                 break;
1447         }
1448         case LFUN_MOUSE_MOTION: {
1449                 // Mouse motion with right or middle mouse do nothing for now.
1450                 if (cmd.button() != mouse_button::button1) {
1451                         cur.noScreenUpdate();
1452                         return;
1453                 }
1454                 // ignore motions deeper nested than the real anchor
1455                 Cursor & bvcur = cur.bv().cursor();
1456                 if (!bvcur.realAnchor().hasPart(cur)) {
1457                         cur.undispatched();
1458                         break;
1459                 }
1460                 CursorSlice old = bvcur.top();
1461
1462                 int const wh = bv->workHeight();
1463                 int const y = max(0, min(wh - 1, cmd.y()));
1464
1465                 tm->setCursorFromCoordinates(cur, cmd.x(), y);
1466                 cur.setTargetX(cmd.x());
1467                 if (cmd.y() >= wh)
1468                         lyx::dispatch(FuncRequest(LFUN_DOWN_SELECT));
1469                 else if (cmd.y() < 0)
1470                         lyx::dispatch(FuncRequest(LFUN_UP_SELECT));
1471                 // This is to allow jumping over large insets
1472                 if (cur.top() == old) {
1473                         if (cmd.y() >= wh)
1474                                 lyx::dispatch(FuncRequest(LFUN_DOWN_SELECT));
1475                         else if (cmd.y() < 0)
1476                                 lyx::dispatch(FuncRequest(LFUN_UP_SELECT));
1477                 }
1478                 // We continue with our existing selection or start a new one, so don't
1479                 // reset the anchor.
1480                 bvcur.setCursor(cur);
1481                 bvcur.setSelection(true);
1482                 if (cur.top() == old) {
1483                         // We didn't move one iota, so no need to update the screen.
1484                         cur.screenUpdateFlags(Update::SinglePar | Update::FitCursor);
1485                         //cur.noScreenUpdate();
1486                         return;
1487                 }
1488                 break;
1489         }
1490
1491         case LFUN_MOUSE_RELEASE:
1492                 switch (cmd.button()) {
1493                 case mouse_button::button1:
1494                         // Cursor was set at LFUN_MOUSE_PRESS or LFUN_MOUSE_MOTION time.
1495                         // If there is a new selection, update persistent selection;
1496                         // otherwise, single click does not clear persistent selection
1497                         // buffer.
1498                         if (cur.selection()) {
1499                                 // Finish selection. If double click,
1500                                 // cur is moved to the end of word by
1501                                 // selectWord but bvcur is current
1502                                 // mouse position.
1503                                 cur.bv().cursor().setSelection();
1504                                 // We might have removed an empty but drawn selection
1505                                 // (probably a margin)
1506                                 cur.screenUpdateFlags(Update::SinglePar | Update::FitCursor);
1507                         } else
1508                                 cur.noScreenUpdate();
1509                         // FIXME: We could try to handle drag and drop of selection here.
1510                         return;
1511
1512                 case mouse_button::button2:
1513                         // Middle mouse pasting is handled at mouse press time,
1514                         // see LFUN_MOUSE_PRESS.
1515                         cur.noScreenUpdate();
1516                         return;
1517
1518                 case mouse_button::button3:
1519                         // Cursor was set at LFUN_MOUSE_PRESS time.
1520                         // FIXME: If there is a selection we could try to handle a special
1521                         // drag & drop context menu.
1522                         cur.noScreenUpdate();
1523                         return;
1524
1525                 case mouse_button::none:
1526                 case mouse_button::button4:
1527                 case mouse_button::button5:
1528                         break;
1529                 } // switch (cmd.button())
1530
1531                 break;
1532
1533         case LFUN_SELF_INSERT: {
1534                 if (cmd.argument().empty())
1535                         break;
1536
1537                 // Automatically delete the currently selected
1538                 // text and replace it with what is being
1539                 // typed in now. Depends on lyxrc settings
1540                 // "auto_region_delete", which defaults to
1541                 // true (on).
1542
1543                 if (lyxrc.auto_region_delete && cur.selection())
1544                         cutSelection(cur, false, false);
1545
1546                 cur.clearSelection();
1547
1548                 docstring::const_iterator cit = cmd.argument().begin();
1549                 docstring::const_iterator const end = cmd.argument().end();
1550                 for (; cit != end; ++cit)
1551                         bv->translateAndInsert(*cit, this, cur);
1552
1553                 cur.resetAnchor();
1554                 moveCursor(cur, false);
1555                 cur.markNewWordPosition();
1556                 bv->bookmarkEditPosition();
1557                 break;
1558         }
1559
1560         case LFUN_HYPERLINK_INSERT: {
1561                 InsetCommandParams p(HYPERLINK_CODE);
1562                 docstring content;
1563                 if (cur.selection()) {
1564                         content = cur.selectionAsString(false);
1565                         cutSelection(cur, true, false);
1566                 }
1567                 p["target"] = (cmd.argument().empty()) ?
1568                         content : cmd.argument();
1569                 string const data = InsetCommand::params2string(p);
1570                 if (p["target"].empty()) {
1571                         bv->showDialog("href", data);
1572                 } else {
1573                         FuncRequest fr(LFUN_INSET_INSERT, data);
1574                         dispatch(cur, fr);
1575                 }
1576                 break;
1577         }
1578
1579         case LFUN_LABEL_INSERT: {
1580                 InsetCommandParams p(LABEL_CODE);
1581                 // Try to generate a valid label
1582                 p["name"] = (cmd.argument().empty()) ?
1583                         cur.getPossibleLabel() :
1584                         cmd.argument();
1585                 string const data = InsetCommand::params2string(p);
1586
1587                 if (cmd.argument().empty()) {
1588                         bv->showDialog("label", data);
1589                 } else {
1590                         FuncRequest fr(LFUN_INSET_INSERT, data);
1591                         dispatch(cur, fr);
1592                 }
1593                 break;
1594         }
1595
1596         case LFUN_INFO_INSERT: {
1597                 Inset * inset;
1598                 if (cmd.argument().empty() && cur.selection()) {
1599                         // if command argument is empty use current selection as parameter.
1600                         docstring ds = cur.selectionAsString(false);
1601                         cutSelection(cur, true, false);
1602                         FuncRequest cmd0(cmd, ds);
1603                         inset = createInset(cur.buffer(), cmd0);
1604                 } else {
1605                         inset = createInset(cur.buffer(), cmd);
1606                 }
1607                 if (!inset)
1608                         break;
1609                 cur.recordUndo();
1610                 insertInset(cur, inset);
1611                 cur.posForward();
1612                 break;
1613         }
1614         case LFUN_CAPTION_INSERT:
1615         case LFUN_FOOTNOTE_INSERT:
1616         case LFUN_NOTE_INSERT:
1617         case LFUN_FLEX_INSERT:
1618         case LFUN_BOX_INSERT:
1619         case LFUN_BRANCH_INSERT:
1620         case LFUN_PHANTOM_INSERT:
1621         case LFUN_ERT_INSERT:
1622         case LFUN_LISTING_INSERT:
1623         case LFUN_MARGINALNOTE_INSERT:
1624         case LFUN_ARGUMENT_INSERT:
1625         case LFUN_INDEX_INSERT:
1626         case LFUN_PREVIEW_INSERT:
1627         case LFUN_SCRIPT_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                 cur.forceBufferUpdate();
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                 cur.forceBufferUpdate();
1689                 cur.screenUpdateFlags(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(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(p);
1714                 FuncRequest fr(LFUN_INSET_INSERT, data);
1715                 dispatch(cur, fr);
1716                 break;
1717         }
1718
1719         case LFUN_NOMENCL_PRINT:
1720         case LFUN_NEWPAGE_INSERT:
1721                 // do nothing fancy
1722                 doInsertInset(cur, this, cmd, false, false);
1723                 cur.posForward();
1724                 break;
1725
1726         case LFUN_DEPTH_DECREMENT:
1727                 changeDepth(cur, DEC_DEPTH);
1728                 break;
1729
1730         case LFUN_DEPTH_INCREMENT:
1731                 changeDepth(cur, INC_DEPTH);
1732                 break;
1733
1734         case LFUN_MATH_DISPLAY:
1735                 mathDispatch(cur, cmd, true);
1736                 break;
1737
1738         case LFUN_REGEXP_MODE:
1739                 regexpDispatch(cur, cmd);
1740                 break;
1741
1742         case LFUN_MATH_MODE:
1743                 if (cmd.argument() == "on")
1744                         // don't pass "on" as argument
1745                         // (it would appear literally in the first cell)
1746                         mathDispatch(cur, FuncRequest(LFUN_MATH_MODE), false);
1747                 else
1748                         mathDispatch(cur, cmd, false);
1749                 break;
1750
1751         case LFUN_MATH_MACRO:
1752                 if (cmd.argument().empty())
1753                         cur.errorMessage(from_utf8(N_("Missing argument")));
1754                 else {
1755                         cur.recordUndo();
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(cur.buffer(),
1764                                 from_utf8(token(s, ' ', 0)), nargs, false, type);
1765                         inset->setBuffer(bv->buffer());
1766                         insertInset(cur, inset);
1767
1768                         // enter macro inset and select the name
1769                         cur.push(*inset);
1770                         cur.top().pos() = cur.top().lastpos();
1771                         cur.resetAnchor();
1772                         cur.setSelection(true);
1773                         cur.top().pos() = 0;
1774                 }
1775                 break;
1776
1777         // passthrough hat and underscore outside mathed:
1778         case LFUN_MATH_SUBSCRIPT:
1779                 mathDispatch(cur, FuncRequest(LFUN_SELF_INSERT, "_"), false);
1780                 break;
1781         case LFUN_MATH_SUPERSCRIPT:
1782                 mathDispatch(cur, FuncRequest(LFUN_SELF_INSERT, "^"), false);
1783                 break;
1784
1785         case LFUN_MATH_INSERT:
1786         case LFUN_MATH_AMS_MATRIX:
1787         case LFUN_MATH_MATRIX:
1788         case LFUN_MATH_DELIM:
1789         case LFUN_MATH_BIGDELIM: {
1790                 cur.recordUndo();
1791                 cap::replaceSelection(cur);
1792                 cur.insert(new InsetMathHull(cur.buffer(), hullSimple));
1793                 checkAndActivateInset(cur, true);
1794                 LASSERT(cur.inMathed(), /**/);
1795                 cur.dispatch(cmd);
1796                 break;
1797         }
1798
1799         case LFUN_FONT_EMPH: {
1800                 Font font(ignore_font, ignore_language);
1801                 font.fontInfo().setEmph(FONT_TOGGLE);
1802                 toggleAndShow(cur, this, font);
1803                 break;
1804         }
1805
1806         case LFUN_FONT_ITAL: {
1807                 Font font(ignore_font, ignore_language);
1808                 font.fontInfo().setShape(ITALIC_SHAPE);
1809                 toggleAndShow(cur, this, font);
1810                 break;
1811         }
1812
1813         case LFUN_FONT_BOLD:
1814         case LFUN_FONT_BOLDSYMBOL: {
1815                 Font font(ignore_font, ignore_language);
1816                 font.fontInfo().setSeries(BOLD_SERIES);
1817                 toggleAndShow(cur, this, font);
1818                 break;
1819         }
1820
1821         case LFUN_FONT_NOUN: {
1822                 Font font(ignore_font, ignore_language);
1823                 font.fontInfo().setNoun(FONT_TOGGLE);
1824                 toggleAndShow(cur, this, font);
1825                 break;
1826         }
1827
1828         case LFUN_FONT_TYPEWRITER: {
1829                 Font font(ignore_font, ignore_language);
1830                 font.fontInfo().setFamily(TYPEWRITER_FAMILY); // no good
1831                 toggleAndShow(cur, this, font);
1832                 break;
1833         }
1834
1835         case LFUN_FONT_SANS: {
1836                 Font font(ignore_font, ignore_language);
1837                 font.fontInfo().setFamily(SANS_FAMILY);
1838                 toggleAndShow(cur, this, font);
1839                 break;
1840         }
1841
1842         case LFUN_FONT_ROMAN: {
1843                 Font font(ignore_font, ignore_language);
1844                 font.fontInfo().setFamily(ROMAN_FAMILY);
1845                 toggleAndShow(cur, this, font);
1846                 break;
1847         }
1848
1849         case LFUN_FONT_DEFAULT: {
1850                 Font font(inherit_font, ignore_language);
1851                 toggleAndShow(cur, this, font);
1852                 break;
1853         }
1854
1855         case LFUN_FONT_STRIKEOUT: {
1856                 Font font(ignore_font, ignore_language);
1857                 font.fontInfo().setStrikeout(FONT_TOGGLE);
1858                 toggleAndShow(cur, this, font);
1859                 break;
1860         }
1861
1862         case LFUN_FONT_UULINE: {
1863                 Font font(ignore_font, ignore_language);
1864                 font.fontInfo().setUuline(FONT_TOGGLE);
1865                 toggleAndShow(cur, this, font);
1866                 break;
1867         }
1868
1869         case LFUN_FONT_UWAVE: {
1870                 Font font(ignore_font, ignore_language);
1871                 font.fontInfo().setUwave(FONT_TOGGLE);
1872                 toggleAndShow(cur, this, font);
1873                 break;
1874         }
1875
1876         case LFUN_FONT_UNDERLINE: {
1877                 Font font(ignore_font, ignore_language);
1878                 font.fontInfo().setUnderbar(FONT_TOGGLE);
1879                 toggleAndShow(cur, this, font);
1880                 break;
1881         }
1882
1883         case LFUN_FONT_SIZE: {
1884                 Font font(ignore_font, ignore_language);
1885                 setLyXSize(to_utf8(cmd.argument()), font.fontInfo());
1886                 toggleAndShow(cur, this, font);
1887                 break;
1888         }
1889
1890         case LFUN_LANGUAGE: {
1891                 Language const * lang = languages.getLanguage(to_utf8(cmd.argument()));
1892                 if (!lang)
1893                         break;
1894                 selectWordWhenUnderCursor(cur, WHOLE_WORD_STRICT);
1895                 Font font(ignore_font, lang);
1896                 toggleAndShow(cur, this, font);
1897                 break;
1898         }
1899
1900         case LFUN_TEXTSTYLE_APPLY:
1901                 toggleAndShow(cur, this, freefont, toggleall);
1902                 cur.message(_("Character set"));
1903                 break;
1904
1905         // Set the freefont using the contents of \param data dispatched from
1906         // the frontends and apply it at the current cursor location.
1907         case LFUN_TEXTSTYLE_UPDATE: {
1908                 Font font;
1909                 bool toggle;
1910                 if (font.fromString(to_utf8(cmd.argument()), toggle)) {
1911                         freefont = font;
1912                         toggleall = toggle;
1913                         toggleAndShow(cur, this, freefont, toggleall);
1914                         cur.message(_("Character set"));
1915                 } else {
1916                         lyxerr << "Argument not ok";
1917                 }
1918                 break;
1919         }
1920
1921         case LFUN_FINISHED_LEFT:
1922                 LYXERR(Debug::DEBUG, "handle LFUN_FINISHED_LEFT:\n" << cur);
1923                 // We're leaving an inset, going left. If the inset is LTR, we're
1924                 // leaving from the front, so we should not move (remain at --- but
1925                 // not in --- the inset). If the inset is RTL, move left, without
1926                 // entering the inset itself; i.e., move to after the inset.
1927                 if (cur.paragraph().getFontSettings(
1928                                 cur.bv().buffer().params(), cur.pos()).isRightToLeft())
1929                         cursorVisLeft(cur, true);
1930                 break;
1931
1932         case LFUN_FINISHED_RIGHT:
1933                 LYXERR(Debug::DEBUG, "handle LFUN_FINISHED_RIGHT:\n" << cur);
1934                 // We're leaving an inset, going right. If the inset is RTL, we're
1935                 // leaving from the front, so we should not move (remain at --- but
1936                 // not in --- the inset). If the inset is LTR, move right, without
1937                 // entering the inset itself; i.e., move to after the inset.
1938                 if (!cur.paragraph().getFontSettings(
1939                                 cur.bv().buffer().params(), cur.pos()).isRightToLeft())
1940                         cursorVisRight(cur, true);
1941                 break;
1942
1943         case LFUN_FINISHED_BACKWARD:
1944                 LYXERR(Debug::DEBUG, "handle LFUN_FINISHED_BACKWARD:\n" << cur);
1945                 break;
1946
1947         case LFUN_FINISHED_FORWARD:
1948                 LYXERR(Debug::DEBUG, "handle LFUN_FINISHED_FORWARD:\n" << cur);
1949                 ++cur.pos();
1950                 cur.setCurrentFont();
1951                 break;
1952
1953         case LFUN_LAYOUT_PARAGRAPH: {
1954                 string data;
1955                 params2string(cur.paragraph(), data);
1956                 data = "show\n" + data;
1957                 bv->showDialog("paragraph", data);
1958                 break;
1959         }
1960
1961         case LFUN_PARAGRAPH_UPDATE: {
1962                 string data;
1963                 params2string(cur.paragraph(), data);
1964
1965                 // Will the paragraph accept changes from the dialog?
1966                 bool const accept =
1967                         cur.inset().allowParagraphCustomization(cur.idx());
1968
1969                 data = "update " + convert<string>(accept) + '\n' + data;
1970                 bv->updateDialog("paragraph", data);
1971                 break;
1972         }
1973
1974         case LFUN_ACCENT_UMLAUT:
1975         case LFUN_ACCENT_CIRCUMFLEX:
1976         case LFUN_ACCENT_GRAVE:
1977         case LFUN_ACCENT_ACUTE:
1978         case LFUN_ACCENT_TILDE:
1979         case LFUN_ACCENT_CEDILLA:
1980         case LFUN_ACCENT_MACRON:
1981         case LFUN_ACCENT_DOT:
1982         case LFUN_ACCENT_UNDERDOT:
1983         case LFUN_ACCENT_UNDERBAR:
1984         case LFUN_ACCENT_CARON:
1985         case LFUN_ACCENT_BREVE:
1986         case LFUN_ACCENT_TIE:
1987         case LFUN_ACCENT_HUNGARIAN_UMLAUT:
1988         case LFUN_ACCENT_CIRCLE:
1989         case LFUN_ACCENT_OGONEK:
1990                 theApp()->handleKeyFunc(cmd.action());
1991                 if (!cmd.argument().empty())
1992                         // FIXME: Are all these characters encoded in one byte in utf8?
1993                         bv->translateAndInsert(cmd.argument()[0], this, cur);
1994                 cur.screenUpdateFlags(Update::FitCursor);
1995                 break;
1996
1997         case LFUN_FLOAT_LIST_INSERT: {
1998                 DocumentClass const & tclass = bv->buffer().params().documentClass();
1999                 if (tclass.floats().typeExist(to_utf8(cmd.argument()))) {
2000                         cur.recordUndo();
2001                         if (cur.selection())
2002                                 cutSelection(cur, true, false);
2003                         breakParagraph(cur);
2004
2005                         if (cur.lastpos() != 0) {
2006                                 cursorBackward(cur);
2007                                 breakParagraph(cur);
2008                         }
2009
2010                         docstring const laystr = cur.inset().usePlainLayout() ?
2011                                 tclass.plainLayoutName() :
2012                                 tclass.defaultLayoutName();
2013                         setLayout(cur, laystr);
2014                         ParagraphParameters p;
2015                         // FIXME If this call were replaced with one to clearParagraphParams(),
2016                         // then we could get rid of this method altogether.
2017                         setParagraphs(cur, p);
2018                         // FIXME This should be simplified when InsetFloatList takes a
2019                         // Buffer in its constructor.
2020                         InsetFloatList * ifl = new InsetFloatList(cur.buffer(), to_utf8(cmd.argument()));
2021                         ifl->setBuffer(bv->buffer());
2022                         insertInset(cur, ifl);
2023                         cur.posForward();
2024                 } else {
2025                         lyxerr << "Non-existent float type: "
2026                                << to_utf8(cmd.argument()) << endl;
2027                 }
2028                 break;
2029         }
2030
2031         case LFUN_CHANGE_ACCEPT: {
2032                 acceptOrRejectChanges(cur, ACCEPT);
2033                 break;
2034         }
2035
2036         case LFUN_CHANGE_REJECT: {
2037                 acceptOrRejectChanges(cur, REJECT);
2038                 break;
2039         }
2040
2041         case LFUN_THESAURUS_ENTRY: {
2042                 docstring arg = cmd.argument();
2043                 if (arg.empty()) {
2044                         arg = cur.selectionAsString(false);
2045                         // FIXME
2046                         if (arg.size() > 100 || arg.empty()) {
2047                                 // Get word or selection
2048                                 selectWordWhenUnderCursor(cur, WHOLE_WORD);
2049                                 arg = cur.selectionAsString(false);
2050                                 arg += " lang=" + from_ascii(cur.getFont().language()->lang());
2051                         }
2052                 }
2053                 bv->showDialog("thesaurus", to_utf8(arg));
2054                 break;
2055         }
2056
2057         case LFUN_SPELLING_ADD: {
2058                 docstring word = from_utf8(cmd.getArg(0));
2059                 Language * lang;
2060                 if (word.empty()) {
2061                         word = cur.selectionAsString(false);
2062                         // FIXME
2063                         if (word.size() > 100 || word.empty()) {
2064                                 // Get word or selection
2065                                 selectWordWhenUnderCursor(cur, WHOLE_WORD);
2066                                 word = cur.selectionAsString(false);
2067                         }
2068                         lang = const_cast<Language *>(cur.getFont().language());
2069                 } else
2070                         lang = const_cast<Language *>(languages.getLanguage(cmd.getArg(1)));
2071                 WordLangTuple wl(word, lang);
2072                 theSpellChecker()->insert(wl);
2073                 break;
2074         }
2075
2076         case LFUN_SPELLING_IGNORE: {
2077                 docstring word = from_utf8(cmd.getArg(0));
2078                 Language * lang;
2079                 if (word.empty()) {
2080                         word = cur.selectionAsString(false);
2081                         // FIXME
2082                         if (word.size() > 100 || word.empty()) {
2083                                 // Get word or selection
2084                                 selectWordWhenUnderCursor(cur, WHOLE_WORD);
2085                                 word = cur.selectionAsString(false);
2086                         }
2087                         lang = const_cast<Language *>(cur.getFont().language());
2088                 } else
2089                         lang = const_cast<Language *>(languages.getLanguage(cmd.getArg(1)));
2090                 WordLangTuple wl(word, lang);
2091                 theSpellChecker()->accept(wl);
2092                 break;
2093         }
2094
2095         case LFUN_SPELLING_REMOVE: {
2096                 docstring word = from_utf8(cmd.getArg(0));
2097                 Language * lang;
2098                 if (word.empty()) {
2099                         word = cur.selectionAsString(false);
2100                         // FIXME
2101                         if (word.size() > 100 || word.empty()) {
2102                                 // Get word or selection
2103                                 selectWordWhenUnderCursor(cur, WHOLE_WORD);
2104                                 word = cur.selectionAsString(false);
2105                         }
2106                         lang = const_cast<Language *>(cur.getFont().language());
2107                 } else
2108                         lang = const_cast<Language *>(languages.getLanguage(cmd.getArg(1)));
2109                 WordLangTuple wl(word, lang);
2110                 theSpellChecker()->remove(wl);
2111                 break;
2112         }
2113
2114         case LFUN_PARAGRAPH_PARAMS_APPLY: {
2115                 // Given data, an encoding of the ParagraphParameters
2116                 // generated in the Paragraph dialog, this function sets
2117                 // the current paragraph, or currently selected paragraphs,
2118                 // appropriately.
2119                 // NOTE: This function overrides all existing settings.
2120                 setParagraphs(cur, cmd.argument());
2121                 cur.message(_("Paragraph layout set"));
2122                 break;
2123         }
2124
2125         case LFUN_PARAGRAPH_PARAMS: {
2126                 // Given data, an encoding of the ParagraphParameters as we'd
2127                 // find them in a LyX file, this function modifies the current paragraph,
2128                 // or currently selected paragraphs.
2129                 // NOTE: This function only modifies, and does not override, existing
2130                 // settings.
2131                 setParagraphs(cur, cmd.argument(), true);
2132                 cur.message(_("Paragraph layout set"));
2133                 break;
2134         }
2135
2136         case LFUN_ESCAPE:
2137                 if (cur.selection()) {
2138                         cur.setSelection(false);
2139                 } else {
2140                         cur.undispatched();
2141                         // This used to be LFUN_FINISHED_RIGHT, I think FORWARD is more
2142                         // correct, but I'm not 100% sure -- dov, 071019
2143                         cmd = FuncRequest(LFUN_FINISHED_FORWARD);
2144                 }
2145                 break;
2146
2147         case LFUN_OUTLINE_UP:
2148                 outline(OutlineUp, cur);
2149                 setCursor(cur, cur.pit(), 0);
2150                 cur.forceBufferUpdate();
2151                 needsUpdate = true;
2152                 break;
2153
2154         case LFUN_OUTLINE_DOWN:
2155                 outline(OutlineDown, cur);
2156                 setCursor(cur, cur.pit(), 0);
2157                 cur.forceBufferUpdate();
2158                 needsUpdate = true;
2159                 break;
2160
2161         case LFUN_OUTLINE_IN:
2162                 outline(OutlineIn, cur);
2163                 cur.forceBufferUpdate();
2164                 needsUpdate = true;
2165                 break;
2166
2167         case LFUN_OUTLINE_OUT:
2168                 outline(OutlineOut, cur);
2169                 cur.forceBufferUpdate();
2170                 needsUpdate = true;
2171                 break;
2172
2173         default:
2174                 LYXERR(Debug::ACTION, "Command " << cmd << " not DISPATCHED by Text");
2175                 cur.undispatched();
2176                 break;
2177         }
2178
2179         needsUpdate |= (cur.pos() != cur.lastpos()) && cur.selection();
2180
2181         if (lyxrc.spellcheck_continuously && !needsUpdate) {
2182                 // Check for misspelled text
2183                 // The redraw is useful because of the painting of
2184                 // misspelled markers depends on the cursor position.
2185                 // Trigger a redraw for cursor moves inside misspelled text.
2186                 if (!cur.inTexted()) {
2187                         // move from regular text to math
2188                         needsUpdate = last_misspelled;
2189                 } else if (oldTopSlice != cur.top() || oldBoundary != cur.boundary()) {
2190                         // move inside regular text
2191                         needsUpdate = last_misspelled
2192                                 || cur.paragraph().isMisspelled(cur.pos(), true);
2193                 }
2194         }
2195
2196         // FIXME: The cursor flag is reset two lines below
2197         // so we need to check here if some of the LFUN did touch that.
2198         // for now only Text::erase() and Text::backspace() do that.
2199         // The plan is to verify all the LFUNs and then to remove this
2200         // singleParUpdate boolean altogether.
2201         if (cur.result().screenUpdate() & Update::Force) {
2202                 singleParUpdate = false;
2203                 needsUpdate = true;
2204         }
2205
2206         // FIXME: the following code should go in favor of fine grained
2207         // update flag treatment.
2208         if (singleParUpdate) {
2209                 // Inserting characters does not change par height in general. So, try
2210                 // to update _only_ this paragraph. BufferView will detect if a full
2211                 // metrics update is needed anyway.
2212                 cur.screenUpdateFlags(Update::SinglePar | Update::FitCursor);
2213                 return;
2214         }
2215         if (!needsUpdate
2216             && &oldTopSlice.inset() == &cur.inset()
2217             && oldTopSlice.idx() == cur.idx()
2218             && !oldSelection // oldSelection is a backup of cur.selection() at the beginning of the function.
2219             && !cur.selection())
2220                 // FIXME: it would be better if we could just do this
2221                 //
2222                 //if (cur.result().update() != Update::FitCursor)
2223                 //      cur.noScreenUpdate();
2224                 //
2225                 // But some LFUNs do not set Update::FitCursor when needed, so we
2226                 // do it for all. This is not very harmfull as FitCursor will provoke
2227                 // a full redraw only if needed but still, a proper review of all LFUN
2228                 // should be done and this needsUpdate boolean can then be removed.
2229                 cur.screenUpdateFlags(Update::FitCursor);
2230         else
2231                 cur.screenUpdateFlags(Update::Force | Update::FitCursor);
2232 }
2233
2234
2235 bool Text::getStatus(Cursor & cur, FuncRequest const & cmd,
2236                         FuncStatus & flag) const
2237 {
2238         LASSERT(cur.text() == this, /**/);
2239
2240         FontInfo const & fontinfo = cur.real_current_font.fontInfo();
2241         bool enable = true;
2242         InsetCode code = NO_CODE;
2243
2244         switch (cmd.action()) {
2245
2246         case LFUN_DEPTH_DECREMENT:
2247                 enable = changeDepthAllowed(cur, DEC_DEPTH);
2248                 break;
2249
2250         case LFUN_DEPTH_INCREMENT:
2251                 enable = changeDepthAllowed(cur, INC_DEPTH);
2252                 break;
2253
2254         case LFUN_APPENDIX:
2255                 flag.setOnOff(cur.paragraph().params().startOfAppendix());
2256                 break;
2257
2258         case LFUN_DIALOG_SHOW_NEW_INSET:
2259                 if (cmd.argument() == "bibitem")
2260                         code = BIBITEM_CODE;
2261                 else if (cmd.argument() == "bibtex") {
2262                         code = BIBTEX_CODE;
2263                         // not allowed in description items
2264                         enable = !inDescriptionItem(cur);
2265                 }
2266                 else if (cmd.argument() == "box")
2267                         code = BOX_CODE;
2268                 else if (cmd.argument() == "branch")
2269                         code = BRANCH_CODE;
2270                 else if (cmd.argument() == "citation")
2271                         code = CITE_CODE;
2272                 else if (cmd.argument() == "ert")
2273                         code = ERT_CODE;
2274                 else if (cmd.argument() == "external")
2275                         code = EXTERNAL_CODE;
2276                 else if (cmd.argument() == "float")
2277                         code = FLOAT_CODE;
2278                 else if (cmd.argument() == "graphics")
2279                         code = GRAPHICS_CODE;
2280                 else if (cmd.argument() == "href")
2281                         code = HYPERLINK_CODE;
2282                 else if (cmd.argument() == "include")
2283                         code = INCLUDE_CODE;
2284                 else if (cmd.argument() == "index")
2285                         code = INDEX_CODE;
2286                 else if (cmd.argument() == "index_print")
2287                         code = INDEX_PRINT_CODE;
2288                 else if (cmd.argument() == "nomenclature")
2289                         code = NOMENCL_CODE;
2290                 else if (cmd.argument() == "nomencl_print")
2291                         code = NOMENCL_PRINT_CODE;
2292                 else if (cmd.argument() == "label")
2293                         code = LABEL_CODE;
2294                 else if (cmd.argument() == "line")
2295                         code = LINE_CODE;
2296                 else if (cmd.argument() == "note")
2297                         code = NOTE_CODE;
2298                 else if (cmd.argument() == "phantom")
2299                         code = PHANTOM_CODE;
2300                 else if (cmd.argument() == "ref")
2301                         code = REF_CODE;
2302                 else if (cmd.argument() == "space")
2303                         code = SPACE_CODE;
2304                 else if (cmd.argument() == "toc")
2305                         code = TOC_CODE;
2306                 else if (cmd.argument() == "vspace")
2307                         code = VSPACE_CODE;
2308                 else if (cmd.argument() == "wrap")
2309                         code = WRAP_CODE;
2310                 else if (cmd.argument() == "listings")
2311                         code = LISTINGS_CODE;
2312                 break;
2313
2314         case LFUN_ERT_INSERT:
2315                 code = ERT_CODE;
2316                 break;
2317         case LFUN_LISTING_INSERT:
2318                 code = LISTINGS_CODE;
2319                 // not allowed in description items
2320                 enable = !inDescriptionItem(cur);
2321                 break;
2322         case LFUN_FOOTNOTE_INSERT:
2323                 code = FOOT_CODE;
2324                 break;
2325         case LFUN_TABULAR_INSERT:
2326                 code = TABULAR_CODE;
2327                 break;
2328         case LFUN_MARGINALNOTE_INSERT:
2329                 code = MARGIN_CODE;
2330                 break;
2331         case LFUN_FLOAT_INSERT:
2332         case LFUN_FLOAT_WIDE_INSERT:
2333                 // FIXME: If there is a selection, we should check whether there
2334                 // are floats in the selection, but this has performance issues, see
2335                 // LFUN_CHANGE_ACCEPT/REJECT.
2336                 code = FLOAT_CODE;
2337                 if (inDescriptionItem(cur))
2338                         // not allowed in description items
2339                         enable = false;
2340                 else {
2341                         InsetCode const inset_code = cur.inset().lyxCode();
2342
2343                         // algorithm floats cannot be put in another float
2344                         if (to_utf8(cmd.argument()) == "algorithm") {
2345                                 enable = inset_code != WRAP_CODE && inset_code != FLOAT_CODE;
2346                                 break;
2347                         }
2348
2349                         // for figures and tables: only allow in another
2350                         // float or wrap if it is of the same type and
2351                         // not a subfloat already
2352                         if(cur.inset().lyxCode() == code) {
2353                                 InsetFloat const & ins =
2354                                         static_cast<InsetFloat const &>(cur.inset());
2355                                 enable = ins.params().type == to_utf8(cmd.argument())
2356                                         && !ins.params().subfloat;
2357                         } else if(cur.inset().lyxCode() == WRAP_CODE) {
2358                                 InsetWrap const & ins =
2359                                         static_cast<InsetWrap const &>(cur.inset());
2360                                 enable = ins.params().type == to_utf8(cmd.argument());
2361                         }
2362                 }
2363                 break;
2364         case LFUN_WRAP_INSERT:
2365                 code = WRAP_CODE;
2366                 // not allowed in description items
2367                 enable = !inDescriptionItem(cur);
2368                 break;
2369         case LFUN_FLOAT_LIST_INSERT: {
2370                 code = FLOAT_LIST_CODE;
2371                 // not allowed in description items
2372                 enable = !inDescriptionItem(cur);
2373                 if (enable) {
2374                         FloatList const & floats = cur.buffer()->params().documentClass().floats();
2375                         FloatList::const_iterator cit = floats[to_ascii(cmd.argument())];
2376                         // make sure we know about such floats
2377                         if (cit == floats.end() ||
2378                                         // and that we know how to generate a list of them
2379                             (!cit->second.usesFloatPkg() && cit->second.listCommand().empty())) {
2380                                 flag.setUnknown(true);
2381                                 // probably not necessary, but...
2382                                 enable = false;
2383                         }
2384                 }
2385                 break;
2386         }
2387         case LFUN_CAPTION_INSERT:
2388                 code = CAPTION_CODE;
2389                 // not allowed in description items
2390                 enable = !inDescriptionItem(cur);
2391                 break;
2392         case LFUN_NOTE_INSERT:
2393                 code = NOTE_CODE;
2394                 // in commands (sections etc.) and description items,
2395                 // only Notes are allowed
2396                 enable = (cmd.argument().empty() || cmd.getArg(0) == "Note" ||
2397                           (!cur.paragraph().layout().isCommand()
2398                            && !inDescriptionItem(cur)));
2399                 break;
2400         case LFUN_FLEX_INSERT: {
2401                 code = FLEX_CODE;
2402                 string s = cmd.getArg(0);
2403                 InsetLayout il =
2404                         cur.buffer()->params().documentClass().insetLayout(from_utf8(s));
2405                 if (il.lyxtype() != InsetLayout::CHARSTYLE &&
2406                     il.lyxtype() != InsetLayout::CUSTOM &&
2407                     il.lyxtype() != InsetLayout::ELEMENT &&
2408                     il.lyxtype ()!= InsetLayout::STANDARD)
2409                         enable = false;
2410                 break;
2411                 }
2412         case LFUN_BOX_INSERT:
2413                 code = BOX_CODE;
2414                 break;
2415         case LFUN_BRANCH_INSERT:
2416                 code = BRANCH_CODE;
2417                 if (cur.buffer()->masterBuffer()->params().branchlist().empty()
2418                     && cur.buffer()->params().branchlist().empty())
2419                         enable = false;
2420                 break;
2421         case LFUN_PHANTOM_INSERT:
2422                 code = PHANTOM_CODE;
2423                 break;
2424         case LFUN_LABEL_INSERT:
2425                 code = LABEL_CODE;
2426                 break;
2427         case LFUN_INFO_INSERT:
2428                 code = INFO_CODE;
2429                 break;
2430         case LFUN_ARGUMENT_INSERT: {
2431                 code = ARG_CODE;
2432                 Layout const & lay = cur.paragraph().layout();
2433                 int const numargs = lay.reqargs + lay.optargs;
2434                 enable = cur.paragraph().insetList().count(ARG_CODE) < numargs;
2435                 break;
2436         }
2437         case LFUN_INDEX_INSERT:
2438                 code = INDEX_CODE;
2439                 break;
2440         case LFUN_INDEX_PRINT:
2441                 code = INDEX_PRINT_CODE;
2442                 // not allowed in description items
2443                 enable = !inDescriptionItem(cur);
2444                 break;
2445         case LFUN_NOMENCL_INSERT:
2446                 if (cur.selIsMultiCell() || cur.selIsMultiLine()) {
2447                         enable = false;
2448                         break;
2449                 }
2450                 code = NOMENCL_CODE;
2451                 break;
2452         case LFUN_NOMENCL_PRINT:
2453                 code = NOMENCL_PRINT_CODE;
2454                 // not allowed in description items
2455                 enable = !inDescriptionItem(cur);
2456                 break;
2457         case LFUN_HYPERLINK_INSERT:
2458                 if (cur.selIsMultiCell() || cur.selIsMultiLine()) {
2459                         enable = false;
2460                         break;
2461                 }
2462                 code = HYPERLINK_CODE;
2463                 break;
2464         case LFUN_QUOTE_INSERT:
2465                 // always allow this, since we will inset a raw quote
2466                 // if an inset is not allowed.
2467                 break;
2468         case LFUN_SPECIALCHAR_INSERT:
2469                 code = SPECIALCHAR_CODE;
2470                 break;
2471         case LFUN_SPACE_INSERT:
2472                 // slight hack: we know this is allowed in math mode
2473                 if (cur.inTexted())
2474                         code = SPACE_CODE;
2475                 break;
2476         case LFUN_PREVIEW_INSERT:
2477                 code = PREVIEW_CODE;
2478                 break;
2479         case LFUN_SCRIPT_INSERT:
2480                 code = SCRIPT_CODE;
2481                 break;
2482
2483         case LFUN_MATH_INSERT:
2484         case LFUN_MATH_AMS_MATRIX:
2485         case LFUN_MATH_MATRIX:
2486         case LFUN_MATH_DELIM:
2487         case LFUN_MATH_BIGDELIM:
2488         case LFUN_MATH_DISPLAY:
2489         case LFUN_MATH_MODE:
2490         case LFUN_MATH_MACRO:
2491         case LFUN_MATH_SUBSCRIPT:
2492         case LFUN_MATH_SUPERSCRIPT:
2493                 code = MATH_HULL_CODE;
2494                 break;
2495
2496         case LFUN_REGEXP_MODE:
2497                 code = MATH_HULL_CODE;
2498                 enable = cur.buffer()->isInternal() && !cur.inRegexped();
2499                 break;
2500
2501         case LFUN_INSET_MODIFY:
2502                 // We need to disable this, because we may get called for a
2503                 // tabular cell via
2504                 // InsetTabular::getStatus() -> InsetText::getStatus()
2505                 // and we don't handle LFUN_INSET_MODIFY.
2506                 enable = false;
2507                 break;
2508
2509         case LFUN_FONT_EMPH:
2510                 flag.setOnOff(fontinfo.emph() == FONT_ON);
2511                 enable = !cur.paragraph().isPassThru();
2512                 break;
2513
2514         case LFUN_FONT_ITAL:
2515                 flag.setOnOff(fontinfo.shape() == ITALIC_SHAPE);
2516                 enable = !cur.paragraph().isPassThru();
2517                 break;
2518
2519         case LFUN_FONT_NOUN:
2520                 flag.setOnOff(fontinfo.noun() == FONT_ON);
2521                 enable = !cur.paragraph().isPassThru();
2522                 break;
2523
2524         case LFUN_FONT_BOLD:
2525         case LFUN_FONT_BOLDSYMBOL:
2526                 flag.setOnOff(fontinfo.series() == BOLD_SERIES);
2527                 enable = !cur.paragraph().isPassThru();
2528                 break;
2529
2530         case LFUN_FONT_SANS:
2531                 flag.setOnOff(fontinfo.family() == SANS_FAMILY);
2532                 enable = !cur.paragraph().isPassThru();
2533                 break;
2534
2535         case LFUN_FONT_ROMAN:
2536                 flag.setOnOff(fontinfo.family() == ROMAN_FAMILY);
2537                 enable = !cur.paragraph().isPassThru();
2538                 break;
2539
2540         case LFUN_FONT_TYPEWRITER:
2541                 flag.setOnOff(fontinfo.family() == TYPEWRITER_FAMILY);
2542                 enable = !cur.paragraph().isPassThru();
2543                 break;
2544
2545         case LFUN_CUT:
2546         case LFUN_COPY:
2547                 enable = cur.selection();
2548                 break;
2549
2550         case LFUN_PASTE: {
2551                 if (cmd.argument().empty()) {
2552                         if (theClipboard().isInternal())
2553                                 enable = cap::numberOfSelections() > 0;
2554                         else
2555                                 enable = !theClipboard().empty();
2556                         break;
2557                 }
2558
2559                 // we have an argument
2560                 string const arg = to_utf8(cmd.argument());
2561                 if (isStrUnsignedInt(arg)) {
2562                         // it's a number and therefore means the internal stack
2563                         unsigned int n = convert<unsigned int>(arg);
2564                         enable = cap::numberOfSelections() > n;
2565                         break;
2566                 }
2567
2568                 // explicit graphics type?
2569                 Clipboard::GraphicsType type = Clipboard::AnyGraphicsType;
2570                 if ((arg == "pdf" && (type = Clipboard::PdfGraphicsType))
2571                           || (arg == "png" && (type = Clipboard::PngGraphicsType))
2572                           || (arg == "jpeg" && (type = Clipboard::JpegGraphicsType))
2573                           || (arg == "linkback" &&  (type = Clipboard::LinkBackGraphicsType))
2574                           || (arg == "emf" &&  (type = Clipboard::EmfGraphicsType))
2575                           || (arg == "wmf" &&  (type = Clipboard::WmfGraphicsType))) {
2576                         enable = theClipboard().hasGraphicsContents(type);
2577                         break;
2578                 }
2579
2580                 // unknown argument
2581                 enable = false;
2582                 break;
2583          }
2584
2585         case LFUN_CLIPBOARD_PASTE:
2586                 enable = !theClipboard().empty();
2587                 break;
2588
2589         case LFUN_PRIMARY_SELECTION_PASTE:
2590                 enable = cur.selection() || !theSelection().empty();
2591                 break;
2592
2593         case LFUN_SELECTION_PASTE:
2594                 enable = cap::selection();
2595                 break;
2596
2597         case LFUN_PARAGRAPH_MOVE_UP:
2598                 enable = cur.pit() > 0 && !cur.selection();
2599                 break;
2600
2601         case LFUN_PARAGRAPH_MOVE_DOWN:
2602                 enable = cur.pit() < cur.lastpit() && !cur.selection();
2603                 break;
2604
2605         case LFUN_CHANGE_ACCEPT:
2606         case LFUN_CHANGE_REJECT:
2607                 // In principle, these LFUNs should only be enabled if there
2608                 // is a change at the current position/in the current selection.
2609                 // However, without proper optimizations, this will inevitably
2610                 // result in unacceptable performance - just imagine a user who
2611                 // wants to select the complete content of a long document.
2612                 if (!cur.selection())
2613                         enable = cur.paragraph().isChanged(cur.pos());
2614                 else
2615                         // TODO: context-sensitive enabling of LFUN_CHANGE_ACCEPT/REJECT
2616                         // for selections.
2617                         enable = true;
2618                 break;
2619
2620         case LFUN_OUTLINE_UP:
2621         case LFUN_OUTLINE_DOWN:
2622         case LFUN_OUTLINE_IN:
2623         case LFUN_OUTLINE_OUT:
2624                 // FIXME: LyX is not ready for outlining within inset.
2625                 enable = isMainText()
2626                         && cur.paragraph().layout().toclevel != Layout::NOT_IN_TOC;
2627                 break;
2628
2629         case LFUN_NEWLINE_INSERT:
2630                 // LaTeX restrictions (labels or empty par)
2631                 enable = (cur.pos() > cur.paragraph().beginOfBody());
2632                 break;
2633
2634         case LFUN_TAB_INSERT:
2635         case LFUN_TAB_DELETE:
2636                 enable = cur.paragraph().isPassThru();
2637                 break;
2638
2639         case LFUN_SET_GRAPHICS_GROUP: {
2640                 InsetGraphics * ins = graphics::getCurrentGraphicsInset(cur);
2641                 if (!ins)
2642                         enable = false;
2643                 else
2644                         flag.setOnOff(to_utf8(cmd.argument()) == ins->getParams().groupId);
2645                 break;
2646         }
2647
2648         case LFUN_NEWPAGE_INSERT:
2649                 // not allowed in description items
2650                 code = NEWPAGE_CODE;
2651                 enable = !inDescriptionItem(cur);
2652                 break;
2653
2654         case LFUN_DATE_INSERT: {
2655                 string const format = cmd.argument().empty()
2656                         ? lyxrc.date_insert_format : to_utf8(cmd.argument());
2657                 enable = support::os::is_valid_strftime(format);
2658                 break;
2659         }
2660
2661         case LFUN_LANGUAGE:
2662                 enable = !cur.paragraph().isPassThru();
2663                 flag.setOnOff(to_utf8(cmd.argument()) == cur.real_current_font.language()->lang());
2664                 break;
2665
2666         case LFUN_BREAK_PARAGRAPH:
2667                 enable = cur.inset().getLayout().isMultiPar();
2668                 break;
2669
2670         case LFUN_SPELLING_ADD:
2671         case LFUN_SPELLING_IGNORE:
2672         case LFUN_SPELLING_REMOVE:
2673                 enable = theSpellChecker();
2674                 break;
2675
2676         case LFUN_LAYOUT:
2677                 enable = !cur.inset().forcePlainLayout();
2678                 break;
2679
2680         case LFUN_LAYOUT_PARAGRAPH:
2681         case LFUN_PARAGRAPH_PARAMS:
2682         case LFUN_PARAGRAPH_PARAMS_APPLY:
2683         case LFUN_PARAGRAPH_UPDATE:
2684                 enable = cur.inset().allowParagraphCustomization();
2685                 break;
2686
2687         // FIXME: why are accent lfuns forbidden with pass_thru layouts?
2688         case LFUN_ACCENT_ACUTE:
2689         case LFUN_ACCENT_BREVE:
2690         case LFUN_ACCENT_CARON:
2691         case LFUN_ACCENT_CEDILLA:
2692         case LFUN_ACCENT_CIRCLE:
2693         case LFUN_ACCENT_CIRCUMFLEX:
2694         case LFUN_ACCENT_DOT:
2695         case LFUN_ACCENT_GRAVE:
2696         case LFUN_ACCENT_HUNGARIAN_UMLAUT:
2697         case LFUN_ACCENT_MACRON:
2698         case LFUN_ACCENT_OGONEK:
2699         case LFUN_ACCENT_TIE:
2700         case LFUN_ACCENT_TILDE:
2701         case LFUN_ACCENT_UMLAUT:
2702         case LFUN_ACCENT_UNDERBAR:
2703         case LFUN_ACCENT_UNDERDOT:
2704         case LFUN_FONT_DEFAULT:
2705         case LFUN_FONT_FRAK:
2706         case LFUN_FONT_SIZE:
2707         case LFUN_FONT_STATE:
2708         case LFUN_FONT_UNDERLINE:
2709         case LFUN_FONT_STRIKEOUT:
2710         case LFUN_FONT_UULINE:
2711         case LFUN_FONT_UWAVE:
2712         case LFUN_TEXTSTYLE_APPLY:
2713         case LFUN_TEXTSTYLE_UPDATE:
2714                 enable = !cur.paragraph().isPassThru();
2715                 break;
2716
2717         case LFUN_WORD_DELETE_FORWARD:
2718         case LFUN_WORD_DELETE_BACKWARD:
2719         case LFUN_LINE_DELETE:
2720         case LFUN_WORD_FORWARD:
2721         case LFUN_WORD_BACKWARD:
2722         case LFUN_WORD_RIGHT:
2723         case LFUN_WORD_LEFT:
2724         case LFUN_CHAR_FORWARD:
2725         case LFUN_CHAR_FORWARD_SELECT:
2726         case LFUN_CHAR_BACKWARD:
2727         case LFUN_CHAR_BACKWARD_SELECT:
2728         case LFUN_CHAR_LEFT:
2729         case LFUN_CHAR_LEFT_SELECT:
2730         case LFUN_CHAR_RIGHT:
2731         case LFUN_CHAR_RIGHT_SELECT:
2732         case LFUN_UP:
2733         case LFUN_UP_SELECT:
2734         case LFUN_DOWN:
2735         case LFUN_DOWN_SELECT:
2736         case LFUN_PARAGRAPH_UP_SELECT:
2737         case LFUN_PARAGRAPH_DOWN_SELECT:
2738         case LFUN_LINE_BEGIN_SELECT:
2739         case LFUN_LINE_END_SELECT:
2740         case LFUN_WORD_FORWARD_SELECT:
2741         case LFUN_WORD_BACKWARD_SELECT:
2742         case LFUN_WORD_RIGHT_SELECT:
2743         case LFUN_WORD_LEFT_SELECT:
2744         case LFUN_WORD_SELECT:
2745         case LFUN_SECTION_SELECT:
2746         case LFUN_BUFFER_BEGIN:
2747         case LFUN_BUFFER_END:
2748         case LFUN_BUFFER_BEGIN_SELECT:
2749         case LFUN_BUFFER_END_SELECT:
2750         case LFUN_INSET_BEGIN:
2751         case LFUN_INSET_END:
2752         case LFUN_INSET_BEGIN_SELECT:
2753         case LFUN_INSET_END_SELECT:
2754         case LFUN_INSET_SELECT_ALL:
2755         case LFUN_PARAGRAPH_UP:
2756         case LFUN_PARAGRAPH_DOWN:
2757         case LFUN_LINE_BEGIN:
2758         case LFUN_LINE_END:
2759         case LFUN_CHAR_DELETE_FORWARD:
2760         case LFUN_CHAR_DELETE_BACKWARD:
2761         case LFUN_WORD_UPCASE:
2762         case LFUN_WORD_LOWCASE:
2763         case LFUN_WORD_CAPITALIZE:
2764         case LFUN_CHARS_TRANSPOSE:
2765         case LFUN_SERVER_GET_XY:
2766         case LFUN_SERVER_SET_XY:
2767         case LFUN_SERVER_GET_LAYOUT:
2768         case LFUN_SELF_INSERT:
2769         case LFUN_UNICODE_INSERT:
2770         case LFUN_THESAURUS_ENTRY:
2771         case LFUN_ESCAPE:
2772                 // these are handled in our dispatch()
2773                 enable = true;
2774                 break;
2775
2776         case LFUN_INSET_INSERT: {
2777                 string const type = cmd.getArg(0);
2778                 if (type == "toc") {
2779                         code = TOC_CODE;
2780                         // not allowed in description items
2781                         //FIXME: couldn't this be merged in Inset::insetAllowed()?
2782                         enable = !inDescriptionItem(cur);
2783                 } else {
2784                         enable = true;
2785                 }
2786                 break;
2787         }
2788
2789         default:
2790                 return false;
2791         }
2792
2793         if (code != NO_CODE
2794             && (cur.empty()
2795                 || !cur.inset().insetAllowed(code)
2796                 || cur.paragraph().layout().pass_thru))
2797                 enable = false;
2798
2799         flag.setEnabled(enable);
2800         return true;
2801 }
2802
2803
2804 void Text::pasteString(Cursor & cur, docstring const & clip,
2805                 bool asParagraphs)
2806 {
2807         cur.clearSelection();
2808         if (!clip.empty()) {
2809                 cur.recordUndo();
2810                 if (asParagraphs)
2811                         insertStringAsParagraphs(cur, clip, cur.current_font);
2812                 else
2813                         insertStringAsLines(cur, clip, cur.current_font);
2814         }
2815 }
2816
2817
2818 // FIXME: an item inset would make things much easier.
2819 bool Text::inDescriptionItem(Cursor & cur) const
2820 {
2821         Paragraph & par = cur.paragraph();
2822         pos_type const pos = cur.pos();
2823         pos_type const body_pos = par.beginOfBody();
2824
2825         if (par.layout().latextype != LATEX_LIST_ENVIRONMENT
2826             && (par.layout().latextype != LATEX_ITEM_ENVIRONMENT
2827                 || par.layout().margintype != MARGIN_FIRST_DYNAMIC))
2828                 return false;
2829
2830         return (pos < body_pos
2831                 || (pos == body_pos
2832                     && (pos == 0 || par.getChar(pos - 1) != ' ')));
2833 }
2834
2835 } // namespace lyx