src/text3.C

   1 /**
   2  * \file text3.C
   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 "lyxtext.h"
  19
  20 #include "BranchList.h"
  21 #include "FloatList.h"
  22 #include "FuncStatus.h"
  23 #include "buffer.h"
  24 #include "buffer_funcs.h"
  25 #include "bufferparams.h"
  26 #include "BufferView.h"
  27 #include "bufferview_funcs.h"
  28 #include "cursor.h"
  29 #include "coordcache.h"
  30 #include "CutAndPaste.h"
  31 #include "debug.h"
  32 #include "dispatchresult.h"
  33 #include "errorlist.h"
  34 #include "factory.h"
  35 #include "funcrequest.h"
  36 #include "gettext.h"
  37 #include "intl.h"
  38 #include "language.h"
  39 #include "LyXAction.h"
  40 #include "lyxfunc.h"
  41 #include "lyxlex.h"
  42 #include "lyxrc.h"
  43 #include "lyxrow.h"
  44 #include "paragraph.h"
  45 #include "paragraph_funcs.h"
  46 #include "ParagraphParameters.h"
  47 #include "undo.h"
  48 #include "vspace.h"
  49 #include "pariterator.h"
  50
  51 #include "frontends/Clipboard.h"
  52 #include "frontends/Selection.h"
  53
  54 #include "insets/insetcommand.h"
  55 #include "insets/insetfloatlist.h"
  56 #include "insets/insetnewline.h"
  57 #include "insets/insetquotes.h"
  58 #include "insets/insetspecialchar.h"
  59 #include "insets/insettext.h"
  60
  61 #include "support/lstrings.h"
  62 #include "support/lyxlib.h"
  63 #include "support/convert.h"
  64 #include "support/lyxtime.h"
  65
  66 #include "mathed/InsetMathHull.h"
  67 #include "mathed/MathMacroTemplate.h"
  68
  69 #include <boost/current_function.hpp>
  70
  71 #include <clocale>
  72 #include <sstream>
  73
  74
  75 namespace lyx {
  76
  77 using cap::copySelection;
  78 using cap::cutSelection;
  79 using cap::pasteSelection;
  80 using cap::replaceSelection;
  81
  82 using support::isStrUnsignedInt;
  83 using support::token;
  84
  85 using std::endl;
  86 using std::string;
  87 using std::istringstream;
  88 using std::ostringstream;
  89
  90
  91 extern string current_layout;
  92
  93
  94 namespace {
  95
  96         // globals...
  97         LyXFont freefont(LyXFont::ALL_IGNORE);
  98         bool toggleall = false;
  99
 100
 101         void toggleAndShow(LCursor & cur, LyXText * text,
 102                 LyXFont const & font, bool toggleall = true)
 103         {
 104                 text->toggleFree(cur, font, toggleall);
 105
 106                 if (font.language() != ignore_language ||
 107                                 font.number() != LyXFont::IGNORE) {
 108                         Paragraph & par = cur.paragraph();
 109                         text->bidi.computeTables(par, cur.buffer(), cur.textRow());
 110                         if (cur.boundary() !=
 111                                         text->bidi.isBoundary(cur.buffer(), par,
 112                                                         cur.pos(),
 113                                                         text->real_current_font))
 114                                 text->setCursor(cur, cur.pit(), cur.pos(),
 115                                                 false, !cur.boundary());
 116                 }
 117         }
 118
 119
 120         void moveCursor(LCursor & cur, bool selecting)
 121         {
 122                 if (selecting || cur.mark())
 123                         cur.setSelection();
 124                 if (!cur.selection())
 125                         theSelection().haveSelection(false);
 126                 cur.bv().switchKeyMap();
 127         }
 128
 129
 130         void finishChange(LCursor & cur, bool selecting)
 131         {
 132                 finishUndo();
 133                 moveCursor(cur, selecting);
 134         }
 135
 136
 137         void mathDispatch(LCursor & cur, FuncRequest const & cmd, bool display)
 138         {
 139                 recordUndo(cur);
 140                 docstring sel = cur.selectionAsString(false);
 141                 //lyxerr << "selection is: '" << sel << "'" << endl;
 142
 143                 // It may happen that sel is empty but there is a selection
 144                 replaceSelection(cur);
 145
 146                 if (sel.empty()) {
 147                         const int old_pos = cur.pos();
 148                         cur.insert(new InsetMathHull(hullSimple));
 149                         BOOST_ASSERT(old_pos == cur.pos());
 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("\\def")) == string::npos)
 168                         {
 169                                 InsetMathHull * formula = new InsetMathHull;
 170                                 istringstream is(to_utf8(sel));
 171                                 LyXLex lex(0, 0);
 172                                 lex.setStream(is);
 173                                 formula->read(cur.buffer(), lex);
 174                                 if (formula->getType() == hullNone)
 175                                         // Don't create pseudo formulas if
 176                                         // delimiters are left out
 177                                         formula->mutate(hullSimple);
 178                                 cur.insert(formula);
 179                         } else {
 180                                 cur.insert(new MathMacroTemplate(sel));
 181                         }
 182                 }
 183                 cur.message(from_utf8(N_("Math editor mode")));
 184         }
 185
 186 } // namespace anon
 187
 188
 189
 190 namespace bv_funcs {
 191
 192 string const freefont2string()
 193 {
 194         string data;
 195         if (font2string(freefont, toggleall, data))
 196                 return data;
 197         return string();
 198 }
 199
 200 }
 201
 202 void LyXText::cursorPrevious(LCursor & cur)
 203 {
 204         pos_type cpos = cur.pos();
 205         pit_type cpar = cur.pit();
 206
 207         int x = cur.x_target();
 208         setCursorFromCoordinates(cur, x, 0);
 209         cur.dispatch(FuncRequest(cur.selection()? LFUN_UP_SELECT: LFUN_UP));
 210
 211         if (cpar == cur.pit() && cpos == cur.pos())
 212                 // we have a row which is taller than the workarea. The
 213                 // simplest solution is to move to the previous row instead.
 214                 cur.dispatch(FuncRequest(cur.selection()? LFUN_UP_SELECT: LFUN_UP));
 215
 216         finishUndo();
 217         cur.updateFlags(Update::Force | Update::FitCursor);
 218 }
 219
 220
 221 void LyXText::cursorNext(LCursor & cur)
 222 {
 223         pos_type cpos = cur.pos();
 224         pit_type cpar = cur.pit();
 225
 226         int x = cur.x_target();
 227         setCursorFromCoordinates(cur, x, cur.bv().workHeight() - 1);
 228         cur.dispatch(FuncRequest(cur.selection()? LFUN_DOWN_SELECT: LFUN_DOWN));
 229
 230         if (cpar == cur.pit() && cpos == cur.pos())
 231                 // we have a row which is taller than the workarea. The
 232                 // simplest solution is to move to the next row instead.
 233                 cur.dispatch(
 234                         FuncRequest(cur.selection()? LFUN_DOWN_SELECT: LFUN_DOWN));
 235
 236         finishUndo();
 237         cur.updateFlags(Update::Force | Update::FitCursor);
 238 }
 239
 240
 241 namespace {
 242
 243 void specialChar(LCursor & cur, InsetSpecialChar::Kind kind)
 244 {
 245         cap::replaceSelection(cur);
 246         cur.insert(new InsetSpecialChar(kind));
 247         cur.posRight();
 248 }
 249
 250
 251 bool doInsertInset(LCursor & cur, LyXText * text,
 252         FuncRequest const & cmd, bool edit, bool pastesel)
 253 {
 254         InsetBase * inset = createInset(&cur.bv(), cmd);
 255         if (!inset)
 256                 return false;
 257
 258         recordUndo(cur);
 259         bool gotsel = false;
 260         if (cur.selection()) {
 261                 lyx::dispatch(FuncRequest(LFUN_CUT));
 262                 gotsel = true;
 263         }
 264         text->insertInset(cur, inset);
 265
 266         if (edit)
 267                 inset->edit(cur, true);
 268
 269         if (gotsel && pastesel) {
 270                 lyx::dispatch(FuncRequest(LFUN_PASTE));
 271                 // reset first par to default
 272                 if (cur.lastpit() != 0 || cur.lastpos() != 0) {
 273                         LyXLayout_ptr const layout =
 274                                 cur.buffer().params().getLyXTextClass().defaultLayout();
 275                         cur.text()->paragraphs().begin()->layout(layout);
 276                 }
 277         }
 278         return true;
 279 }
 280
 281
 282 } // anon namespace
 283
 284
 285 void LyXText::number(LCursor & cur)
 286 {
 287         LyXFont font(LyXFont::ALL_IGNORE);
 288         font.setNumber(LyXFont::TOGGLE);
 289         toggleAndShow(cur, this, font);
 290 }
 291
 292
 293 bool LyXText::isRTL(Buffer const & buffer, Paragraph const & par) const
 294 {
 295         return par.isRightToLeftPar(buffer.params());
 296 }
 297
 298
 299 void LyXText::dispatch(LCursor & cur, FuncRequest & cmd)
 300 {
 301         lyxerr[Debug::ACTION] << "LyXText::dispatch: cmd: " << cmd << endl;
 302
 303         // FIXME: We use the update flag to indicates wether a singlePar or a
 304         // full screen update is needed. We reset it here but shall we restore it
 305         // at the end?
 306         cur.noUpdate();
 307
 308         BOOST_ASSERT(cur.text() == this);
 309         BufferView * bv = &cur.bv();
 310         CursorSlice oldTopSlice = cur.top();
 311         bool oldBoundary = cur.boundary();
 312         bool sel = cur.selection();
 313         // Signals that, even if needsUpdate == false, an update of the
 314         // cursor paragraph is required
 315         bool singleParUpdate = lyxaction.funcHasFlag(cmd.action,
 316                 LyXAction::SingleParUpdate);
 317         // Signals that a full-screen update is required
 318         bool needsUpdate = !(lyxaction.funcHasFlag(cmd.action,
 319                 LyXAction::NoUpdate) || singleParUpdate);
 320         // Remember the old paragraph metric (_outer_ paragraph!)
 321         ParagraphMetrics const & pm = cur.bv().parMetrics(
 322                 cur.bottom().text(), cur.bottom().pit());
 323         Dimension olddim = pm.dim();
 324
 325         switch (cmd.action) {
 326
 327         case LFUN_PARAGRAPH_MOVE_DOWN: {
 328                 pit_type const pit = cur.pit();
 329                 recUndo(cur, pit, pit + 1);
 330                 finishUndo();
 331                 std::swap(pars_[pit], pars_[pit + 1]);
 332
 333                 ParIterator begin(cur);
 334                 ++cur.pit();
 335                 ParIterator end = boost::next(ParIterator(cur));
 336                 updateLabels(cur.buffer(), begin, end);
 337
 338                 needsUpdate = true;
 339                 break;
 340         }
 341
 342         case LFUN_PARAGRAPH_MOVE_UP: {
 343                 pit_type const pit = cur.pit();
 344                 recUndo(cur, pit - 1, pit);
 345                 finishUndo();
 346                 std::swap(pars_[pit], pars_[pit - 1]);
 347
 348                 ParIterator end = boost::next(ParIterator(cur));
 349                 --cur.pit();
 350                 ParIterator begin(cur);
 351                 updateLabels(cur.buffer(), begin, end);
 352
 353                 needsUpdate = true;
 354                 break;
 355         }
 356
 357         case LFUN_APPENDIX: {
 358                 Paragraph & par = cur.paragraph();
 359                 bool start = !par.params().startOfAppendix();
 360
 361 #ifdef WITH_WARNINGS
 362 #warning The code below only makes sense at top level.
 363 // Should LFUN_APPENDIX be restricted to top-level paragraphs?
 364 #endif
 365                 // ensure that we have only one start_of_appendix in this document
 366                 for (pit_type tmp = 0, end = pars_.size(); tmp != end; ++tmp) {
 367                         if (pars_[tmp].params().startOfAppendix()) {
 368                                 recUndo(cur, tmp);
 369                                 pars_[tmp].params().startOfAppendix(false);
 370                                 break;
 371                         }
 372                 }
 373
 374                 recordUndo(cur);
 375                 par.params().startOfAppendix(start);
 376
 377                 // we can set the refreshing parameters now
 378                 updateLabels(cur.buffer());
 379                 break;
 380         }
 381
 382         case LFUN_WORD_DELETE_FORWARD:
 383                 cur.clearSelection();
 384                 deleteWordForward(cur);
 385                 finishChange(cur, false);
 386                 break;
 387
 388         case LFUN_WORD_DELETE_BACKWARD:
 389                 cur.clearSelection();
 390                 deleteWordBackward(cur);
 391                 finishChange(cur, false);
 392                 break;
 393
 394         case LFUN_LINE_DELETE:
 395                 cur.clearSelection();
 396                 deleteLineForward(cur);
 397                 finishChange(cur, false);
 398                 break;
 399
 400         case LFUN_BUFFER_BEGIN:
 401         case LFUN_BUFFER_BEGIN_SELECT:
 402                 needsUpdate |= cur.selHandle(cmd.action == LFUN_BUFFER_BEGIN_SELECT);
 403                 if (cur.depth() == 1) {
 404                         needsUpdate |= cursorTop(cur);
 405                 } else {
 406                         cur.undispatched();
 407                 }
 408                 break;
 409
 410         case LFUN_BUFFER_END:
 411         case LFUN_BUFFER_END_SELECT:
 412                 needsUpdate |= cur.selHandle(cmd.action == LFUN_BUFFER_END_SELECT);
 413                 if (cur.depth() == 1) {
 414                         needsUpdate |= cursorBottom(cur);
 415                 } else {
 416                         cur.undispatched();
 417                 }
 418                 break;
 419
 420         case LFUN_CHAR_FORWARD:
 421         case LFUN_CHAR_FORWARD_SELECT:
 422                 //lyxerr << BOOST_CURRENT_FUNCTION
 423                 //       << " LFUN_CHAR_FORWARD[SEL]:\n" << cur << endl;
 424                 needsUpdate |= cur.selHandle(cmd.action == LFUN_CHAR_FORWARD_SELECT);
 425                 if (isRTL(*cur.bv().buffer(), cur.paragraph()))
 426                         needsUpdate |= cursorLeft(cur);
 427                 else
 428                         needsUpdate |= cursorRight(cur);
 429
 430                 if (!needsUpdate && oldTopSlice == cur.top()
 431                                 && cur.boundary() == oldBoundary) {
 432                         cur.undispatched();
 433                         cmd = FuncRequest(LFUN_FINISHED_RIGHT);
 434                 }
 435                 break;
 436
 437         case LFUN_CHAR_BACKWARD:
 438         case LFUN_CHAR_BACKWARD_SELECT:
 439                 //lyxerr << "handle LFUN_CHAR_BACKWARD[_SELECT]:\n" << cur << endl;
 440                 needsUpdate |= cur.selHandle(cmd.action == LFUN_CHAR_BACKWARD_SELECT);
 441                 if (isRTL(*cur.bv().buffer(), cur.paragraph()))
 442                         needsUpdate |= cursorRight(cur);
 443                 else
 444                         needsUpdate |= cursorLeft(cur);
 445
 446                 if (!needsUpdate && oldTopSlice == cur.top()
 447                         && cur.boundary() == oldBoundary) {
 448                         cur.undispatched();
 449                         cmd = FuncRequest(LFUN_FINISHED_LEFT);
 450                 }
 451                 break;
 452
 453         case LFUN_UP:
 454         case LFUN_UP_SELECT:
 455                 //lyxerr << "handle LFUN_UP[SEL]:\n" << cur << endl;
 456                 needsUpdate |= cur.selHandle(cmd.action == LFUN_UP_SELECT);
 457
 458                 needsUpdate |= cursorUp(cur);
 459
 460                 if (!needsUpdate && oldTopSlice == cur.top()
 461                           && cur.boundary() == oldBoundary) {
 462                         cur.undispatched();
 463                         cmd = FuncRequest(LFUN_FINISHED_UP);
 464                 }
 465                 break;
 466
 467         case LFUN_DOWN:
 468         case LFUN_DOWN_SELECT:
 469                 //lyxerr << "handle LFUN_DOWN[SEL]:\n" << cur << endl;
 470                 needsUpdate |= cur.selHandle(cmd.action == LFUN_DOWN_SELECT);
 471                 needsUpdate |= cursorDown(cur);
 472
 473                 if (!needsUpdate && oldTopSlice == cur.top() &&
 474                     cur.boundary() == oldBoundary)
 475                 {
 476                         cur.undispatched();
 477                         cmd = FuncRequest(LFUN_FINISHED_DOWN);
 478                 }
 479                 break;
 480
 481         case LFUN_PARAGRAPH_UP:
 482         case LFUN_PARAGRAPH_UP_SELECT:
 483                 needsUpdate |= cur.selHandle(cmd.action == LFUN_PARAGRAPH_UP_SELECT);
 484                 needsUpdate |= cursorUpParagraph(cur);
 485                 break;
 486
 487         case LFUN_PARAGRAPH_DOWN:
 488         case LFUN_PARAGRAPH_DOWN_SELECT:
 489                 needsUpdate |= cur.selHandle(cmd.action == LFUN_PARAGRAPH_DOWN_SELECT);
 490                 needsUpdate |= cursorDownParagraph(cur);
 491                 break;
 492
 493         case LFUN_SCREEN_UP:
 494         case LFUN_SCREEN_UP_SELECT:
 495                 needsUpdate |= cur.selHandle(cmd.action == LFUN_SCREEN_UP_SELECT);
 496                 if (cur.pit() == 0 && cur.textRow().pos() == 0) {
 497                         cur.undispatched();
 498                         cmd = FuncRequest(LFUN_FINISHED_UP);
 499                 } else {
 500                         cursorPrevious(cur);
 501                 }
 502                 break;
 503
 504         case LFUN_SCREEN_DOWN:
 505         case LFUN_SCREEN_DOWN_SELECT:
 506                 needsUpdate |= cur.selHandle(cmd.action == LFUN_SCREEN_DOWN_SELECT);
 507                 if (cur.pit() == cur.lastpit()
 508                           && cur.textRow().endpos() == cur.lastpos()) {
 509                         cur.undispatched();
 510                         cmd = FuncRequest(LFUN_FINISHED_DOWN);
 511                 } else {
 512                         cursorNext(cur);
 513                 }
 514                 break;
 515
 516         case LFUN_LINE_BEGIN:
 517         case LFUN_LINE_BEGIN_SELECT:
 518                 needsUpdate |= cur.selHandle(cmd.action == LFUN_LINE_BEGIN_SELECT);
 519                 needsUpdate |= cursorHome(cur);
 520                 break;
 521
 522         case LFUN_LINE_END:
 523         case LFUN_LINE_END_SELECT:
 524                 needsUpdate |= cur.selHandle(cmd.action == LFUN_LINE_END_SELECT);
 525                 needsUpdate |= cursorEnd(cur);
 526                 break;
 527
 528         case LFUN_WORD_FORWARD:
 529         case LFUN_WORD_FORWARD_SELECT:
 530                 needsUpdate |= cur.selHandle(cmd.action == LFUN_WORD_FORWARD_SELECT);
 531                 if (isRTL(*cur.bv().buffer(), cur.paragraph()))
 532                         needsUpdate |= cursorLeftOneWord(cur);
 533                 else
 534                         needsUpdate |= cursorRightOneWord(cur);
 535                 break;
 536
 537         case LFUN_WORD_BACKWARD:
 538         case LFUN_WORD_BACKWARD_SELECT:
 539                 needsUpdate |= cur.selHandle(cmd.action == LFUN_WORD_BACKWARD_SELECT);
 540                 if (isRTL(*cur.bv().buffer(), cur.paragraph()))
 541                         needsUpdate |= cursorRightOneWord(cur);
 542                 else
 543                         needsUpdate |= cursorLeftOneWord(cur);
 544                 break;
 545
 546         case LFUN_WORD_SELECT: {
 547                 selectWord(cur, WHOLE_WORD);
 548                 finishChange(cur, true);
 549                 break;
 550         }
 551
 552         case LFUN_BREAK_LINE: {
 553                 // Not allowed by LaTeX (labels or empty par)
 554                 if (cur.pos() > cur.paragraph().beginOfBody()) {
 555                         cap::replaceSelection(cur);
 556                         cur.insert(new InsetNewline);
 557                         cur.posRight();
 558                         moveCursor(cur, false);
 559                 }
 560                 break;
 561         }
 562
 563         case LFUN_CHAR_DELETE_FORWARD:
 564                 if (!cur.selection()) {
 565                         if (cur.pos() == cur.paragraph().size())
 566                                 // Par boundary, force full-screen update
 567                                 singleParUpdate = false;
 568                         needsUpdate |= erase(cur);
 569                         cur.resetAnchor();
 570                         // It is possible to make it a lot faster still
 571                         // just comment out the line below...
 572                 } else {
 573                         cutSelection(cur, true, false);
 574                         singleParUpdate = false;
 575                 }
 576                 moveCursor(cur, false);
 577                 break;
 578
 579         case LFUN_DELETE_FORWARD_SKIP:
 580                 // Reverse the effect of LFUN_BREAK_PARAGRAPH_SKIP.
 581                 if (!cur.selection()) {
 582                         if (cur.pos() == cur.lastpos()) {
 583                                 cursorRight(cur);
 584                                 cursorLeft(cur);
 585                         }
 586                         erase(cur);
 587                         cur.resetAnchor();
 588                 } else {
 589                         cutSelection(cur, true, false);
 590                 }
 591                 break;
 592
 593
 594         case LFUN_CHAR_DELETE_BACKWARD:
 595                 if (!cur.selection()) {
 596                         if (bv->getIntl().getTransManager().backspace()) {
 597                                 // Par boundary, full-screen update
 598                                 if (cur.pos() == 0)
 599                                         singleParUpdate = false;
 600                                 needsUpdate |= backspace(cur);
 601                                 cur.resetAnchor();
 602                                 // It is possible to make it a lot faster still
 603                                 // just comment out the line below...
 604                         }
 605                 } else {
 606                         cutSelection(cur, true, false);
 607                         singleParUpdate = false;
 608                 }
 609                 bv->switchKeyMap();
 610                 break;
 611
 612         case LFUN_DELETE_BACKWARD_SKIP:
 613                 // Reverse the effect of LFUN_BREAK_PARAGRAPH_SKIP.
 614                 if (!cur.selection()) {
 615 #ifdef WITH_WARNINGS
 616 #warning look here
 617 #endif
 618                         //CursorSlice cur = cursor();
 619                         backspace(cur);
 620                         //anchor() = cur;
 621                 } else {
 622                         cutSelection(cur, true, false);
 623                 }
 624                 break;
 625
 626         case LFUN_BREAK_PARAGRAPH:
 627                 cap::replaceSelection(cur);
 628                 breakParagraph(cur, 0);
 629                 cur.resetAnchor();
 630                 bv->switchKeyMap();
 631                 break;
 632
 633         case LFUN_BREAK_PARAGRAPH_KEEP_LAYOUT:
 634                 cap::replaceSelection(cur);
 635                 breakParagraph(cur, 1);
 636                 cur.resetAnchor();
 637                 bv->switchKeyMap();
 638                 break;
 639
 640         case LFUN_BREAK_PARAGRAPH_SKIP: {
 641                 // When at the beginning of a paragraph, remove
 642                 // indentation.  Otherwise, do the same as LFUN_BREAK_PARAGRAPH.
 643                 cap::replaceSelection(cur);
 644                 if (cur.pos() == 0)
 645                         cur.paragraph().params().labelWidthString(docstring());
 646                 else
 647                         breakParagraph(cur, 0);
 648                 cur.resetAnchor();
 649                 bv->switchKeyMap();
 650                 break;
 651         }
 652
 653         case LFUN_PARAGRAPH_SPACING: {
 654                 Paragraph & par = cur.paragraph();
 655                 Spacing::Space cur_spacing = par.params().spacing().getSpace();
 656                 string cur_value = "1.0";
 657                 if (cur_spacing == Spacing::Other)
 658                         cur_value = par.params().spacing().getValueAsString();
 659
 660                 istringstream is(to_utf8(cmd.argument()));
 661                 string tmp;
 662                 is >> tmp;
 663                 Spacing::Space new_spacing = cur_spacing;
 664                 string new_value = cur_value;
 665                 if (tmp.empty()) {
 666                         lyxerr << "Missing argument to `paragraph-spacing'"
 667                                << endl;
 668                 } else if (tmp == "single") {
 669                         new_spacing = Spacing::Single;
 670                 } else if (tmp == "onehalf") {
 671                         new_spacing = Spacing::Onehalf;
 672                 } else if (tmp == "double") {
 673                         new_spacing = Spacing::Double;
 674                 } else if (tmp == "other") {
 675                         new_spacing = Spacing::Other;
 676                         string tmpval = "0.0";
 677                         is >> tmpval;
 678                         lyxerr << "new_value = " << tmpval << endl;
 679                         if (tmpval != "0.0")
 680                                 new_value = tmpval;
 681                 } else if (tmp == "default") {
 682                         new_spacing = Spacing::Default;
 683                 } else {
 684                         lyxerr << to_utf8(_("Unknown spacing argument: "))
 685                                << to_utf8(cmd.argument()) << endl;
 686                 }
 687                 if (cur_spacing != new_spacing || cur_value != new_value)
 688                         par.params().spacing(Spacing(new_spacing, new_value));
 689                 break;
 690         }
 691
 692         case LFUN_INSET_INSERT: {
 693                 recordUndo(cur);
 694                 InsetBase * inset = createInset(bv, cmd);
 695                 if (inset) {
 696                         insertInset(cur, inset);
 697                         cur.posRight();
 698                 }
 699                 break;
 700         }
 701
 702         case LFUN_INSET_DISSOLVE:
 703                 needsUpdate |= dissolveInset(cur);
 704                 break;
 705
 706         case LFUN_INSET_SETTINGS:
 707                 cur.inset().showInsetDialog(bv);
 708                 break;
 709
 710         case LFUN_SPACE_INSERT:
 711                 if (cur.paragraph().layout()->free_spacing)
 712                         insertChar(cur, ' ');
 713                 else {
 714                         doInsertInset(cur, this, cmd, false, false);
 715                         cur.posRight();
 716                 }
 717                 moveCursor(cur, false);
 718                 break;
 719
 720         case LFUN_HYPHENATION_POINT_INSERT:
 721                 specialChar(cur, InsetSpecialChar::HYPHENATION);
 722                 break;
 723
 724         case LFUN_LIGATURE_BREAK_INSERT:
 725                 specialChar(cur, InsetSpecialChar::LIGATURE_BREAK);
 726                 break;
 727
 728         case LFUN_DOTS_INSERT:
 729                 specialChar(cur, InsetSpecialChar::LDOTS);
 730                 break;
 731
 732         case LFUN_END_OF_SENTENCE_PERIOD_INSERT:
 733                 specialChar(cur, InsetSpecialChar::END_OF_SENTENCE);
 734                 break;
 735
 736         case LFUN_MENU_SEPARATOR_INSERT:
 737                 specialChar(cur, InsetSpecialChar::MENU_SEPARATOR);
 738                 break;
 739
 740         case LFUN_WORD_UPCASE:
 741                 changeCase(cur, LyXText::text_uppercase);
 742                 break;
 743
 744         case LFUN_WORD_LOWCASE:
 745                 changeCase(cur, LyXText::text_lowercase);
 746                 break;
 747
 748         case LFUN_WORD_CAPITALIZE:
 749                 changeCase(cur, LyXText::text_capitalization);
 750                 break;
 751
 752         case LFUN_CHARS_TRANSPOSE:
 753                 charsTranspose(cur);
 754                 break;
 755
 756         case LFUN_PASTE:
 757                 cur.message(_("Paste"));
 758                 cap::replaceSelection(cur);
 759                 if (isStrUnsignedInt(to_utf8(cmd.argument())))
 760                         pasteSelection(cur, bv->buffer()->errorList("Paste"),
 761                         convert<unsigned int>(to_utf8(cmd.argument())));
 762                 else
 763                         pasteSelection(cur, bv->buffer()->errorList("Paste"),
 764                         0);
 765                 bv->buffer()->errors("Paste");
 766                 cur.clearSelection(); // bug 393
 767                 bv->switchKeyMap();
 768                 finishUndo();
 769                 break;
 770
 771         case LFUN_CUT:
 772                 cutSelection(cur, true, true);
 773                 cur.message(_("Cut"));
 774                 break;
 775
 776         case LFUN_COPY:
 777                 copySelection(cur);
 778                 cur.message(_("Copy"));
 779                 break;
 780
 781         case LFUN_SERVER_GET_XY:
 782                 cur.message(from_utf8(
 783                         convert<string>(cursorX(cur.bv(), cur.top(), cur.boundary()))
 784                         + ' ' + convert<string>(cursorY(cur.bv(), cur.top(), cur.boundary()))));
 785                 break;
 786
 787         case LFUN_SERVER_SET_XY: {
 788                 int x = 0;
 789                 int y = 0;
 790                 istringstream is(to_utf8(cmd.argument()));
 791                 is >> x >> y;
 792                 if (!is)
 793                         lyxerr << "SETXY: Could not parse coordinates in '"
 794                                << to_utf8(cmd.argument()) << std::endl;
 795                 else
 796                         setCursorFromCoordinates(cur, x, y);
 797                 break;
 798         }
 799
 800         case LFUN_SERVER_GET_FONT:
 801                 if (current_font.shape() == LyXFont::ITALIC_SHAPE)
 802                         cur.message(from_ascii("E"));
 803                 else if (current_font.shape() == LyXFont::SMALLCAPS_SHAPE)
 804                         cur.message(from_ascii("N"));
 805                 else
 806                         cur.message(from_ascii("0"));
 807                 break;
 808
 809         case LFUN_SERVER_GET_LAYOUT:
 810                 cur.message(from_utf8(cur.paragraph().layout()->name()));
 811                 break;
 812
 813         case LFUN_LAYOUT: {
 814                 string layout = to_ascii(cmd.argument());
 815                 lyxerr[Debug::INFO] << "LFUN_LAYOUT: (arg) " << layout << endl;
 816
 817                 // Derive layout number from given argument (string)
 818                 // and current buffer's textclass (number)
 819                 LyXTextClass const & tclass = bv->buffer()->params().getLyXTextClass();
 820                 if (layout.empty())
 821                         layout = tclass.defaultLayoutName();
 822                 bool hasLayout = tclass.hasLayout(layout);
 823
 824                 // If the entry is obsolete, use the new one instead.
 825                 if (hasLayout) {
 826                         string const & obs = tclass[layout]->obsoleted_by();
 827                         if (!obs.empty())
 828                                 layout = obs;
 829                 }
 830
 831                 if (!hasLayout) {
 832                         cur.errorMessage(from_utf8(N_("Layout ")) + cmd.argument() +
 833                                 from_utf8(N_(" not known")));
 834                         break;
 835                 }
 836
 837                 bool change_layout = (current_layout != layout);
 838
 839                 if (!change_layout && cur.selection() &&
 840                         cur.selBegin().pit() != cur.selEnd().pit())
 841                 {
 842                         pit_type spit = cur.selBegin().pit();
 843                         pit_type epit = cur.selEnd().pit() + 1;
 844                         while (spit != epit) {
 845                                 if (pars_[spit].layout()->name() != current_layout) {
 846                                         change_layout = true;
 847                                         break;
 848                                 }
 849                                 ++spit;
 850                         }
 851                 }
 852
 853                 if (change_layout) {
 854                         current_layout = layout;
 855                         setLayout(cur, layout);
 856                         // inform the GUI that the layout has changed.
 857                         bv->layoutChanged(layout);
 858                         bv->switchKeyMap();
 859                 }
 860                 break;
 861         }
 862
 863         case LFUN_CLIPBOARD_PASTE: {
 864                 cur.clearSelection();
 865                 docstring const clip = theClipboard().get();
 866                 if (!clip.empty()) {
 867                         recordUndo(cur);
 868                         if (cmd.argument() == "paragraph")
 869                                 insertStringAsParagraphs(cur, clip);
 870                         else
 871                                 insertStringAsLines(cur, clip);
 872                 }
 873                 break;
 874         }
 875
 876         case LFUN_PRIMARY_SELECTION_PASTE: {
 877                 cur.clearSelection();
 878                 docstring const clip = theSelection().get();
 879                 if (!clip.empty()) {
 880                         recordUndo(cur);
 881                         if (cmd.argument() == "paragraph")
 882                                 insertStringAsParagraphs(cur, clip);
 883                         else
 884                                 insertStringAsLines(cur, clip);
 885                 }
 886                 break;
 887         }
 888
 889         case LFUN_UNICODE_INSERT: {
 890                 if (cmd.argument().empty())
 891                         break;
 892                 docstring hexstring = cmd.argument();
 893                 if (lyx::support::isHex(hexstring)) {
 894                         char_type c = lyx::support::hexToInt(hexstring);
 895                         if (c > 32 && c < 0x10ffff) {
 896                                 lyxerr << "Inserting c: " << c << endl;
 897                                 docstring s = docstring(1, c);
 898                                 lyx::dispatch(FuncRequest(LFUN_SELF_INSERT, s));
 899                         }
 900                 }
 901                 break;
 902         }
 903
 904         case LFUN_QUOTE_INSERT: {
 905                 cap::replaceSelection(cur);
 906                 Paragraph & par = cur.paragraph();
 907                 pos_type pos = cur.pos();
 908                 char_type c;
 909                 if (pos == 0)
 910                         c = ' ';
 911                 else if (cur.prevInset() && cur.prevInset()->isSpace())
 912                         c = ' ';
 913                 else
 914                         c = par.getChar(pos - 1);
 915
 916                 LyXLayout_ptr const & style = par.layout();
 917
 918                 BufferParams const & bufparams = bv->buffer()->params();
 919                 if (!style->pass_thru
 920                     && par.getFontSettings(bufparams, pos).language()->lang() != "hebrew") {
 921                         string arg = to_utf8(cmd.argument());
 922                         if (arg == "single")
 923                                 cur.insert(new InsetQuotes(c,
 924                                     bufparams.quotes_language,
 925                                     InsetQuotes::SingleQ));
 926                         else
 927                                 cur.insert(new InsetQuotes(c,
 928                                     bufparams.quotes_language,
 929                                     InsetQuotes::DoubleQ));
 930                         cur.posRight();
 931                 }
 932                 else
 933                         lyx::dispatch(FuncRequest(LFUN_SELF_INSERT, "\""));
 934                 break;
 935         }
 936
 937         case LFUN_DATE_INSERT:
 938                 if (cmd.argument().empty())
 939                         lyx::dispatch(FuncRequest(LFUN_SELF_INSERT,
 940                                 formatted_time(current_time())));
 941                 else
 942                         lyx::dispatch(FuncRequest(LFUN_SELF_INSERT,
 943                                 formatted_time(current_time(), to_utf8(cmd.argument()))));
 944                 break;
 945
 946         case LFUN_MOUSE_TRIPLE:
 947                 if (cmd.button() == mouse_button::button1) {
 948                         cursorHome(cur);
 949                         cur.resetAnchor();
 950                         cursorEnd(cur);
 951                         cur.setSelection();
 952                         bv->cursor() = cur;
 953                         theSelection().haveSelection(cur.selection());
 954                 }
 955                 break;
 956
 957         case LFUN_MOUSE_DOUBLE:
 958                 if (cmd.button() == mouse_button::button1) {
 959                         selectWord(cur, WHOLE_WORD_STRICT);
 960                         bv->cursor() = cur;
 961                         theSelection().haveSelection(cur.selection());
 962                 }
 963                 break;
 964
 965         // Single-click on work area
 966         case LFUN_MOUSE_PRESS: {
 967                 // Right click on a footnote flag opens float menu
 968                 if (cmd.button() == mouse_button::button3)
 969                         cur.clearSelection();
 970
 971                 // Middle button press pastes if we have a selection
 972                 // We do this here as if the selection was inside an inset
 973                 // it could get cleared on the unlocking of the inset so
 974                 // we have to check this first
 975                 bool paste_internally = false;
 976                 if (cmd.button() == mouse_button::button2 && cur.selection()) {
 977                         lyx::dispatch(FuncRequest(LFUN_COPY));
 978                         paste_internally = true;
 979                 }
 980
 981                 // we have to update after dePM triggered
 982                 bool update = bv->mouseSetCursor(cur);
 983
 984                 // Insert primary selection with middle mouse
 985                 // if there is a local selection in the current buffer,
 986                 // insert this
 987                 if (cmd.button() == mouse_button::button2) {
 988                         if (paste_internally)
 989                                 lyx::dispatch(FuncRequest(LFUN_PASTE));
 990                         else
 991                                 lyx::dispatch(FuncRequest(LFUN_PRIMARY_SELECTION_PASTE, "paragraph"));
 992                 }
 993
 994                 if (!update && cmd.button() == mouse_button::button1) {
 995                         needsUpdate = false;
 996                         cur.noUpdate();
 997                 }
 998
 999                 break;
1000         }
1001
1002         case LFUN_MOUSE_MOTION: {
1003                 // Only use motion with button 1
1004                 //if (cmd.button() != mouse_button::button1)
1005                 //      return false;
1006
1007                 // ignore motions deeper nested than the real anchor
1008                 LCursor & bvcur = cur.bv().cursor();
1009                 if (bvcur.anchor_.hasPart(cur)) {
1010                         CursorSlice old = bvcur.top();
1011
1012                         int const wh = bv->workHeight();
1013                         int const y = std::max(0, std::min(wh - 1, cmd.y));
1014
1015                         setCursorFromCoordinates(cur, cmd.x, y);
1016                         cur.x_target() = cmd.x;
1017                         if (cmd.y >= wh)
1018                                 lyx::dispatch(FuncRequest(LFUN_DOWN_SELECT));
1019                         else if (cmd.y < 0)
1020                                 lyx::dispatch(FuncRequest(LFUN_UP_SELECT));
1021                         // This is to allow jumping over large insets
1022                         if (cur.top() == old) {
1023                                 if (cmd.y >= wh)
1024                                         lyx::dispatch(FuncRequest(LFUN_DOWN_SELECT));
1025                                 else if (cmd.y < 0)
1026                                         lyx::dispatch(FuncRequest(LFUN_UP_SELECT));
1027                         }
1028
1029                         if (cur.top() == old)
1030                                 cur.noUpdate();
1031                         else {
1032                                 // don't set anchor_
1033                                 bvcur.setCursor(cur);
1034                                 bvcur.selection() = true;
1035                                 //lyxerr << "MOTION: " << bv->cursor() << endl;
1036                         }
1037
1038                 } else
1039                         cur.undispatched();
1040                 break;
1041         }
1042
1043         case LFUN_MOUSE_RELEASE: {
1044                 if (cmd.button() == mouse_button::button2)
1045                         break;
1046
1047                 // finish selection
1048                 if (cmd.button() == mouse_button::button1) {
1049                         if (cur.selection())
1050                                 theSelection().haveSelection(cur.selection());
1051                         needsUpdate = false;
1052                         cur.noUpdate();
1053                 }
1054
1055                 bv->switchKeyMap();
1056                 break;
1057         }
1058
1059         case LFUN_SELF_INSERT: {
1060                 if (cmd.argument().empty())
1061                         break;
1062
1063                 // Automatically delete the currently selected
1064                 // text and replace it with what is being
1065                 // typed in now. Depends on lyxrc settings
1066                 // "auto_region_delete", which defaults to
1067                 // true (on).
1068
1069                 if (lyxrc.auto_region_delete) {
1070                         if (cur.selection())
1071                                 cutSelection(cur, false, false);
1072                         theSelection().haveSelection(false);
1073                 }
1074
1075                 cur.clearSelection();
1076                 LyXFont const old_font = real_current_font;
1077
1078                 docstring::const_iterator cit = cmd.argument().begin();
1079                 docstring::const_iterator end = cmd.argument().end();
1080                 for (; cit != end; ++cit)
1081 #if 0
1082                         bv->getIntl().getTransManager().
1083                                 translateAndInsert(*cit, this);
1084 #else
1085                         insertChar(bv->cursor(), *cit);
1086 #endif
1087
1088                 cur.resetAnchor();
1089                 moveCursor(cur, false);
1090                 break;
1091         }
1092
1093         case LFUN_URL_INSERT: {
1094                 InsetCommandParams p("url");
1095                 string const data = InsetCommandMailer::params2string("url", p);
1096                 bv->showInsetDialog("url", data, 0);
1097                 break;
1098         }
1099
1100         case LFUN_HTML_INSERT: {
1101                 InsetCommandParams p("htmlurl");
1102                 string const data = InsetCommandMailer::params2string("url", p);
1103                 bv->showInsetDialog("url", data, 0);
1104                 break;
1105         }
1106
1107         case LFUN_LABEL_INSERT: {
1108                 InsetCommandParams p("label");
1109                 // Try to generate a valid label
1110                 p["name"] = (cmd.argument().empty()) ?
1111                         cur.getPossibleLabel() :
1112                         cmd.argument();
1113                 string const data = InsetCommandMailer::params2string("label", p);
1114
1115                 if (cmd.argument().empty()) {
1116                         bv->showInsetDialog("label", data, 0);
1117                 } else {
1118                         FuncRequest fr(LFUN_INSET_INSERT, data);
1119                         dispatch(cur, fr);
1120                 }
1121                 break;
1122         }
1123
1124
1125 #if 0
1126         case LFUN_LIST_INSERT:
1127         case LFUN_THEOREM_INSERT:
1128         case LFUN_CAPTION_INSERT:
1129 #endif
1130         case LFUN_NOTE_INSERT:
1131         case LFUN_CHARSTYLE_INSERT:
1132         case LFUN_BOX_INSERT:
1133         case LFUN_BRANCH_INSERT:
1134         case LFUN_BIBITEM_INSERT:
1135         case LFUN_ERT_INSERT:
1136         case LFUN_FOOTNOTE_INSERT:
1137         case LFUN_MARGINALNOTE_INSERT:
1138         case LFUN_OPTIONAL_INSERT:
1139         case LFUN_ENVIRONMENT_INSERT:
1140                 // Open the inset, and move the current selection
1141                 // inside it.
1142                 doInsertInset(cur, this, cmd, true, true);
1143                 cur.posRight();
1144                 break;
1145
1146         case LFUN_TABULAR_INSERT:
1147                 // if there were no arguments, just open the dialog
1148                 if (doInsertInset(cur, this, cmd, false, true))
1149                         cur.posRight();
1150                 else
1151                         bv->showDialog("tabularcreate");
1152
1153                 break;
1154
1155         case LFUN_FLOAT_INSERT:
1156         case LFUN_FLOAT_WIDE_INSERT:
1157         case LFUN_WRAP_INSERT:
1158                 doInsertInset(cur, this, cmd, true, true);
1159                 cur.posRight();
1160                 // FIXME: the "Caption" name should not be hardcoded,
1161                 // but given by the float definition.
1162                 cur.dispatch(FuncRequest(LFUN_LAYOUT, "Caption"));
1163                 break;
1164
1165         case LFUN_INDEX_INSERT:
1166         case LFUN_NOMENCL_INSERT: {
1167                 InsetBase * inset = createInset(&cur.bv(), cmd);
1168                 if (!inset)
1169                         break;
1170
1171                 recordUndo(cur);
1172                 cur.clearSelection();
1173                 insertInset(cur, inset);
1174                 inset->edit(cur, true);
1175                 // Show the dialog for the nomenclature entry, since the
1176                 // description entry still needs to be filled in.
1177                 if (cmd.action == LFUN_NOMENCL_INSERT)
1178                         InsetCommandMailer("nomenclature",
1179                                 *reinterpret_cast<InsetCommand *>(inset)).showDialog(&cur.bv());
1180                 cur.posRight();
1181                 break;
1182         }
1183
1184         case LFUN_INDEX_PRINT:
1185         case LFUN_NOMENCL_PRINT:
1186         case LFUN_TOC_INSERT:
1187         case LFUN_HFILL_INSERT:
1188         case LFUN_LINE_INSERT:
1189         case LFUN_PAGEBREAK_INSERT:
1190         case LFUN_CLEARPAGE_INSERT:
1191         case LFUN_CLEARDOUBLEPAGE_INSERT:
1192                 // do nothing fancy
1193                 doInsertInset(cur, this, cmd, false, false);
1194                 cur.posRight();
1195                 break;
1196
1197         case LFUN_DEPTH_DECREMENT:
1198                 changeDepth(cur, DEC_DEPTH);
1199                 break;
1200
1201         case LFUN_DEPTH_INCREMENT:
1202                 changeDepth(cur, INC_DEPTH);
1203                 break;
1204
1205         case LFUN_MATH_DISPLAY:
1206                 mathDispatch(cur, cmd, true);
1207                 break;
1208
1209         case LFUN_MATH_IMPORT_SELECTION:
1210         case LFUN_MATH_MODE:
1211                 if (cmd.argument() == "on")
1212                         // don't pass "on" as argument
1213                         mathDispatch(cur, FuncRequest(LFUN_MATH_MODE), false);
1214                 else
1215                         mathDispatch(cur, cmd, false);
1216                 break;
1217
1218         case LFUN_MATH_MACRO:
1219                 if (cmd.argument().empty())
1220                         cur.errorMessage(from_utf8(N_("Missing argument")));
1221                 else {
1222                         string s = to_utf8(cmd.argument());
1223                         string const s1 = token(s, ' ', 1);
1224                         int const nargs = s1.empty() ? 0 : convert<int>(s1);
1225                         string const s2 = token(s, ' ', 2);
1226                         string const type = s2.empty() ? "newcommand" : s2;
1227                         cur.insert(new MathMacroTemplate(from_utf8(token(s, ' ', 0)), nargs, from_utf8(type)));
1228                         //cur.nextInset()->edit(cur, true);
1229                 }
1230                 break;
1231
1232         // passthrough hat and underscore outside mathed:
1233         case LFUN_MATH_SUBSCRIPT:
1234                 mathDispatch(cur, FuncRequest(LFUN_SELF_INSERT, "_"), false);
1235                 break;
1236         case LFUN_MATH_SUPERSCRIPT:
1237                 mathDispatch(cur, FuncRequest(LFUN_SELF_INSERT, "^"), false);
1238                 break;
1239
1240         case LFUN_MATH_INSERT:
1241         case LFUN_MATH_MATRIX:
1242         case LFUN_MATH_DELIM:
1243         case LFUN_MATH_BIGDELIM: {
1244                 cur.insert(new InsetMathHull(hullSimple));
1245                 cur.dispatch(FuncRequest(LFUN_CHAR_FORWARD));
1246                 cur.dispatch(cmd);
1247                 break;
1248         }
1249
1250         case LFUN_FONT_EMPH: {
1251                 LyXFont font(LyXFont::ALL_IGNORE);
1252                 font.setEmph(LyXFont::TOGGLE);
1253                 toggleAndShow(cur, this, font);
1254                 break;
1255         }
1256
1257         case LFUN_FONT_BOLD: {
1258                 LyXFont font(LyXFont::ALL_IGNORE);
1259                 font.setSeries(LyXFont::BOLD_SERIES);
1260                 toggleAndShow(cur, this, font);
1261                 break;
1262         }
1263
1264         case LFUN_FONT_NOUN: {
1265                 LyXFont font(LyXFont::ALL_IGNORE);
1266                 font.setNoun(LyXFont::TOGGLE);
1267                 toggleAndShow(cur, this, font);
1268                 break;
1269         }
1270
1271         case LFUN_FONT_CODE: {
1272                 LyXFont font(LyXFont::ALL_IGNORE);
1273                 font.setFamily(LyXFont::TYPEWRITER_FAMILY); // no good
1274                 toggleAndShow(cur, this, font);
1275                 break;
1276         }
1277
1278         case LFUN_FONT_SANS: {
1279                 LyXFont font(LyXFont::ALL_IGNORE);
1280                 font.setFamily(LyXFont::SANS_FAMILY);
1281                 toggleAndShow(cur, this, font);
1282                 break;
1283         }
1284
1285         case LFUN_FONT_ROMAN: {
1286                 LyXFont font(LyXFont::ALL_IGNORE);
1287                 font.setFamily(LyXFont::ROMAN_FAMILY);
1288                 toggleAndShow(cur, this, font);
1289                 break;
1290         }
1291
1292         case LFUN_FONT_DEFAULT: {
1293                 LyXFont font(LyXFont::ALL_INHERIT, ignore_language);
1294                 toggleAndShow(cur, this, font);
1295                 break;
1296         }
1297
1298         case LFUN_FONT_UNDERLINE: {
1299                 LyXFont font(LyXFont::ALL_IGNORE);
1300                 font.setUnderbar(LyXFont::TOGGLE);
1301                 toggleAndShow(cur, this, font);
1302                 break;
1303         }
1304
1305         case LFUN_FONT_SIZE: {
1306                 LyXFont font(LyXFont::ALL_IGNORE);
1307                 font.setLyXSize(to_utf8(cmd.argument()));
1308                 toggleAndShow(cur, this, font);
1309                 break;
1310         }
1311
1312         case LFUN_LANGUAGE: {
1313                 Language const * lang = languages.getLanguage(to_utf8(cmd.argument()));
1314                 if (!lang)
1315                         break;
1316                 LyXFont font(LyXFont::ALL_IGNORE);
1317                 font.setLanguage(lang);
1318                 toggleAndShow(cur, this, font);
1319                 bv->switchKeyMap();
1320                 break;
1321         }
1322
1323         case LFUN_FONT_FREE_APPLY:
1324                 toggleAndShow(cur, this, freefont, toggleall);
1325                 cur.message(_("Character set"));
1326                 break;
1327
1328         // Set the freefont using the contents of \param data dispatched from
1329         // the frontends and apply it at the current cursor location.
1330         case LFUN_FONT_FREE_UPDATE: {
1331                 LyXFont font;
1332                 bool toggle;
1333                 if (bv_funcs::string2font(to_utf8(cmd.argument()), font, toggle)) {
1334                         freefont = font;
1335                         toggleall = toggle;
1336                         toggleAndShow(cur, this, freefont, toggleall);
1337                         cur.message(_("Character set"));
1338                 }
1339                 break;
1340         }
1341
1342         case LFUN_FINISHED_LEFT:
1343                 lyxerr[Debug::DEBUG] << "handle LFUN_FINISHED_LEFT:\n" << cur << endl;
1344                 break;
1345
1346         case LFUN_FINISHED_RIGHT:
1347                 lyxerr[Debug::DEBUG] << "handle LFUN_FINISHED_RIGHT:\n" << cur << endl;
1348                 ++cur.pos();
1349                 break;
1350
1351         case LFUN_FINISHED_UP:
1352                 lyxerr[Debug::DEBUG] << "handle LFUN_FINISHED_UP:\n" << cur << endl;
1353                 cursorUp(cur);
1354                 break;
1355
1356         case LFUN_FINISHED_DOWN:
1357                 lyxerr[Debug::DEBUG] << "handle LFUN_FINISHED_DOWN:\n" << cur << endl;
1358                 cursorDown(cur);
1359                 break;
1360
1361         case LFUN_LAYOUT_PARAGRAPH: {
1362                 string data;
1363                 params2string(cur.paragraph(), data);
1364                 data = "show\n" + data;
1365                 bv->showDialogWithData("paragraph", data);
1366                 break;
1367         }
1368
1369         case LFUN_PARAGRAPH_UPDATE: {
1370                 string data;
1371                 params2string(cur.paragraph(), data);
1372
1373                 // Will the paragraph accept changes from the dialog?
1374                 bool const accept = !cur.inset().forceDefaultParagraphs(cur.idx());
1375
1376                 data = "update " + convert<string>(accept) + '\n' + data;
1377                 bv->updateDialog("paragraph", data);
1378                 break;
1379         }
1380
1381         case LFUN_ACCENT_UMLAUT:
1382         case LFUN_ACCENT_CIRCUMFLEX:
1383         case LFUN_ACCENT_GRAVE:
1384         case LFUN_ACCENT_ACUTE:
1385         case LFUN_ACCENT_TILDE:
1386         case LFUN_ACCENT_CEDILLA:
1387         case LFUN_ACCENT_MACRON:
1388         case LFUN_ACCENT_DOT:
1389         case LFUN_ACCENT_UNDERDOT:
1390         case LFUN_ACCENT_UNDERBAR:
1391         case LFUN_ACCENT_CARON:
1392         case LFUN_ACCENT_SPECIAL_CARON:
1393         case LFUN_ACCENT_BREVE:
1394         case LFUN_ACCENT_TIE:
1395         case LFUN_ACCENT_HUNGARIAN_UMLAUT:
1396         case LFUN_ACCENT_CIRCLE:
1397         case LFUN_ACCENT_OGONEK:
1398                 theLyXFunc().handleKeyFunc(cmd.action);
1399                 if (!cmd.argument().empty())
1400                         // FIXME: Are all these characters encoded in one byte in utf8?
1401                         bv->getIntl().getTransManager()
1402                                 .translateAndInsert(cmd.argument()[0], this, cur);
1403                 break;
1404
1405         case LFUN_FLOAT_LIST: {
1406                 LyXTextClass const & tclass = bv->buffer()->params().getLyXTextClass();
1407                 if (tclass.floats().typeExist(to_utf8(cmd.argument()))) {
1408                         // not quite sure if we want this...
1409                         recordUndo(cur);
1410                         cur.clearSelection();
1411                         breakParagraph(cur);
1412
1413                         if (cur.lastpos() != 0) {
1414                                 cursorLeft(cur);
1415                                 breakParagraph(cur);
1416                         }
1417
1418                         setLayout(cur, tclass.defaultLayoutName());
1419                         setParagraph(cur, Spacing(), LYX_ALIGN_LAYOUT, docstring(), 0);
1420                         insertInset(cur, new InsetFloatList(to_utf8(cmd.argument())));
1421                         cur.posRight();
1422                 } else {
1423                         lyxerr << "Non-existent float type: "
1424                                << to_utf8(cmd.argument()) << endl;
1425                 }
1426                 break;
1427         }
1428
1429         case LFUN_CHANGE_ACCEPT: {
1430                 acceptChange(cur);
1431                 break;
1432         }
1433
1434         case LFUN_CHANGE_REJECT: {
1435                 rejectChange(cur);
1436                 break;
1437         }
1438
1439         case LFUN_THESAURUS_ENTRY: {
1440                 docstring arg = cmd.argument();
1441                 if (arg.empty()) {
1442                         arg = cur.selectionAsString(false);
1443                         // FIXME
1444                         if (arg.size() > 100 || arg.empty()) {
1445                                 // Get word or selection
1446                                 selectWordWhenUnderCursor(cur, WHOLE_WORD);
1447                                 arg = cur.selectionAsString(false);
1448                         }
1449                 }
1450                 bv->showDialogWithData("thesaurus", to_utf8(arg));
1451                 break;
1452         }
1453
1454         case LFUN_PARAGRAPH_PARAMS_APPLY: {
1455                 // Given data, an encoding of the ParagraphParameters
1456                 // generated in the Paragraph dialog, this function sets
1457                 // the current paragraph appropriately.
1458                 istringstream is(to_utf8(cmd.argument()));
1459                 LyXLex lex(0, 0);
1460                 lex.setStream(is);
1461                 ParagraphParameters params;
1462                 params.read(lex);
1463                 setParagraph(cur,
1464                              params.spacing(),
1465                              params.align(),
1466                              params.labelWidthString(),
1467                              params.noindent());
1468                 cur.message(_("Paragraph layout set"));
1469                 break;
1470         }
1471
1472         case LFUN_ESCAPE:
1473                 if (cur.selection()) {
1474                         cur.selection() = false;
1475                 } else {
1476                         cur.undispatched();
1477                         cmd = FuncRequest(LFUN_FINISHED_RIGHT);
1478                 }
1479                 break;
1480
1481         default:
1482                 lyxerr[Debug::ACTION]
1483                         << BOOST_CURRENT_FUNCTION
1484                         << ": Command " << cmd
1485                         << " not DISPATCHED by LyXText" << endl;
1486                 cur.undispatched();
1487                 break;
1488         }
1489
1490         needsUpdate |= (cur.pos() != cur.lastpos()) && cur.selection();
1491
1492         // FIXME: The cursor flag is reset two lines below
1493         // so we need to check here if some of the LFUN did touch that.
1494         // for now only LyXText::erase() and LyXText::backspace() do that.
1495         // The plan is to verify all the LFUNs and then to remove this
1496         // singleParUpdate boolean altogether.
1497         if (cur.result().update() & Update::Force) {
1498                 singleParUpdate = false;
1499                 needsUpdate = true;
1500         }
1501
1502         // FIXME: the following code should go in favor of fine grained
1503         // update flag treatment.
1504         if (singleParUpdate) {
1505                 // Inserting characters does not change par height
1506                 ParagraphMetrics const & pms
1507                         = cur.bv().parMetrics(cur.bottom().text(), cur.bottom().pit());
1508                 if (pms.dim().height()
1509                     == olddim.height()) {
1510                         // if so, update _only_ this paragraph
1511                         cur.updateFlags(Update::SinglePar |
1512                                 Update::FitCursor |
1513                                 Update::MultiParSel);
1514                         return;
1515                 } else
1516                         needsUpdate = true;
1517         }
1518
1519         if (!needsUpdate
1520             && &oldTopSlice.inset() == &cur.inset()
1521             && oldTopSlice.idx() == cur.idx()
1522             && !sel // sel is a backup of cur.selection() at the biginning of the function.
1523             && !cur.selection())
1524                 // FIXME: it would be better if we could just do this
1525                 //
1526                 //if (cur.result().update() != Update::FitCursor)
1527                 //      cur.noUpdate();
1528                 //
1529                 // But some LFUNs do not set Update::FitCursor when needed, so we
1530                 // do it for all. This is not very harmfull as FitCursor will provoke
1531                 // a full redraw only if needed but still, a proper review of all LFUN
1532                 // should be done and this needsUpdate boolean can then be removed.
1533                 cur.updateFlags(Update::FitCursor);
1534         else
1535                 cur.updateFlags(Update::Force | Update::FitCursor);
1536 }
1537
1538
1539 bool LyXText::getStatus(LCursor & cur, FuncRequest const & cmd,
1540                         FuncStatus & flag) const
1541 {
1542         BOOST_ASSERT(cur.text() == this);
1543
1544         LyXFont const & font = real_current_font;
1545         bool enable = true;
1546         InsetBase::Code code = InsetBase::NO_CODE;
1547
1548         switch (cmd.action) {
1549
1550         case LFUN_DEPTH_DECREMENT:
1551                 enable = changeDepthAllowed(cur, DEC_DEPTH);
1552                 break;
1553
1554         case LFUN_DEPTH_INCREMENT:
1555                 enable = changeDepthAllowed(cur, INC_DEPTH);
1556                 break;
1557
1558         case LFUN_APPENDIX:
1559                 flag.setOnOff(cur.paragraph().params().startOfAppendix());
1560                 return true;
1561
1562         case LFUN_BIBITEM_INSERT:
1563                 enable = (cur.paragraph().layout()->labeltype == LABEL_BIBLIO);
1564                 break;
1565
1566         case LFUN_DIALOG_SHOW_NEW_INSET:
1567                 if (cmd.argument() == "bibitem")
1568                         code = InsetBase::BIBITEM_CODE;
1569                 else if (cmd.argument() == "bibtex")
1570                         code = InsetBase::BIBTEX_CODE;
1571                 else if (cmd.argument() == "box")
1572                         code = InsetBase::BOX_CODE;
1573                 else if (cmd.argument() == "branch")
1574                         code = InsetBase::BRANCH_CODE;
1575                 else if (cmd.argument() == "citation")
1576                         code = InsetBase::CITE_CODE;
1577                 else if (cmd.argument() == "ert")
1578                         code = InsetBase::ERT_CODE;
1579                 else if (cmd.argument() == "external")
1580                         code = InsetBase::EXTERNAL_CODE;
1581                 else if (cmd.argument() == "float")
1582                         code = InsetBase::FLOAT_CODE;
1583                 else if (cmd.argument() == "graphics")
1584                         code = InsetBase::GRAPHICS_CODE;
1585                 else if (cmd.argument() == "include")
1586                         code = InsetBase::INCLUDE_CODE;
1587                 else if (cmd.argument() == "index")
1588                         code = InsetBase::INDEX_CODE;
1589                 else if (cmd.argument() == "nomenclature")
1590                         code = InsetBase::NOMENCL_CODE;
1591                 else if (cmd.argument() == "label")
1592                         code = InsetBase::LABEL_CODE;
1593                 else if (cmd.argument() == "note")
1594                         code = InsetBase::NOTE_CODE;
1595                 else if (cmd.argument() == "ref")
1596                         code = InsetBase::REF_CODE;
1597                 else if (cmd.argument() == "toc")
1598                         code = InsetBase::TOC_CODE;
1599                 else if (cmd.argument() == "url")
1600                         code = InsetBase::URL_CODE;
1601                 else if (cmd.argument() == "vspace")
1602                         code = InsetBase::VSPACE_CODE;
1603                 else if (cmd.argument() == "wrap")
1604                         code = InsetBase::WRAP_CODE;
1605                 break;
1606
1607         case LFUN_ERT_INSERT:
1608                 code = InsetBase::ERT_CODE;
1609                 break;
1610         case LFUN_FOOTNOTE_INSERT:
1611                 code = InsetBase::FOOT_CODE;
1612                 break;
1613         case LFUN_TABULAR_INSERT:
1614                 code = InsetBase::TABULAR_CODE;
1615                 break;
1616         case LFUN_MARGINALNOTE_INSERT:
1617                 code = InsetBase::MARGIN_CODE;
1618                 break;
1619         case LFUN_FLOAT_INSERT:
1620         case LFUN_FLOAT_WIDE_INSERT:
1621                 code = InsetBase::FLOAT_CODE;
1622                 break;
1623         case LFUN_WRAP_INSERT:
1624                 code = InsetBase::WRAP_CODE;
1625                 break;
1626         case LFUN_FLOAT_LIST:
1627                 code = InsetBase::FLOAT_LIST_CODE;
1628                 break;
1629 #if 0
1630         case LFUN_LIST_INSERT:
1631                 code = InsetBase::LIST_CODE;
1632                 break;
1633         case LFUN_THEOREM_INSERT:
1634                 code = InsetBase::THEOREM_CODE;
1635                 break;
1636 #endif
1637         case LFUN_CAPTION_INSERT:
1638                 code = InsetBase::CAPTION_CODE;
1639                 break;
1640         case LFUN_NOTE_INSERT:
1641                 code = InsetBase::NOTE_CODE;
1642                 break;
1643         case LFUN_CHARSTYLE_INSERT:
1644                 code = InsetBase::CHARSTYLE_CODE;
1645                 if (cur.buffer().params().getLyXTextClass().charstyles().empty())
1646                         enable = false;
1647                 break;
1648         case LFUN_BOX_INSERT:
1649                 code = InsetBase::BOX_CODE;
1650                 break;
1651         case LFUN_BRANCH_INSERT:
1652                 code = InsetBase::BRANCH_CODE;
1653                 if (cur.buffer().getMasterBuffer()->params().branchlist().empty())
1654                         enable = false;
1655                 break;
1656         case LFUN_LABEL_INSERT:
1657                 code = InsetBase::LABEL_CODE;
1658                 break;
1659         case LFUN_OPTIONAL_INSERT:
1660                 code = InsetBase::OPTARG_CODE;
1661                 enable = numberOfOptArgs(cur.paragraph())
1662                         < cur.paragraph().layout()->optionalargs;
1663                 break;
1664         case LFUN_ENVIRONMENT_INSERT:
1665                 code = InsetBase::BOX_CODE;
1666                 break;
1667         case LFUN_INDEX_INSERT:
1668                 code = InsetBase::INDEX_CODE;
1669                 break;
1670         case LFUN_INDEX_PRINT:
1671                 code = InsetBase::INDEX_PRINT_CODE;
1672                 break;
1673         case LFUN_NOMENCL_INSERT:
1674                 code = InsetBase::NOMENCL_CODE;
1675                 break;
1676         case LFUN_NOMENCL_PRINT:
1677                 code = InsetBase::NOMENCL_PRINT_CODE;
1678                 break;
1679         case LFUN_TOC_INSERT:
1680                 code = InsetBase::TOC_CODE;
1681                 break;
1682         case LFUN_HTML_INSERT:
1683         case LFUN_URL_INSERT:
1684                 code = InsetBase::URL_CODE;
1685                 break;
1686         case LFUN_QUOTE_INSERT:
1687                 // always allow this, since we will inset a raw quote
1688                 // if an inset is not allowed.
1689                 break;
1690         case LFUN_HYPHENATION_POINT_INSERT:
1691         case LFUN_LIGATURE_BREAK_INSERT:
1692         case LFUN_HFILL_INSERT:
1693         case LFUN_MENU_SEPARATOR_INSERT:
1694         case LFUN_DOTS_INSERT:
1695         case LFUN_END_OF_SENTENCE_PERIOD_INSERT:
1696                 code = InsetBase::SPECIALCHAR_CODE;
1697                 break;
1698         case LFUN_SPACE_INSERT:
1699                 // slight hack: we know this is allowed in math mode
1700                 if (cur.inTexted())
1701                         code = InsetBase::SPACE_CODE;
1702                 break;
1703
1704         case LFUN_INSET_MODIFY:
1705                 // We need to disable this, because we may get called for a
1706                 // tabular cell via
1707                 // InsetTabular::getStatus() -> InsetText::getStatus()
1708                 // and we don't handle LFUN_INSET_MODIFY.
1709                 enable = false;
1710                 break;
1711
1712         case LFUN_FONT_EMPH:
1713                 flag.setOnOff(font.emph() == LyXFont::ON);
1714                 return true;
1715
1716         case LFUN_FONT_NOUN:
1717                 flag.setOnOff(font.noun() == LyXFont::ON);
1718                 return true;
1719
1720         case LFUN_FONT_BOLD:
1721                 flag.setOnOff(font.series() == LyXFont::BOLD_SERIES);
1722                 return true;
1723
1724         case LFUN_FONT_SANS:
1725                 flag.setOnOff(font.family() == LyXFont::SANS_FAMILY);
1726                 return true;
1727
1728         case LFUN_FONT_ROMAN:
1729                 flag.setOnOff(font.family() == LyXFont::ROMAN_FAMILY);
1730                 return true;
1731
1732         case LFUN_FONT_CODE:
1733                 flag.setOnOff(font.family() == LyXFont::TYPEWRITER_FAMILY);
1734                 return true;
1735
1736         case LFUN_CUT:
1737         case LFUN_COPY:
1738                 enable = cur.selection();
1739                 break;
1740
1741         case LFUN_PASTE:
1742                 enable = cap::numberOfSelections() > 0;
1743                 break;
1744
1745         case LFUN_PARAGRAPH_MOVE_UP:
1746                 enable = cur.pit() > 0 && !cur.selection();
1747                 break;
1748
1749         case LFUN_PARAGRAPH_MOVE_DOWN:
1750                 enable = cur.pit() < cur.lastpit() && !cur.selection();
1751                 break;
1752
1753         case LFUN_INSET_DISSOLVE:
1754                 enable = !isMainText(*cur.bv().buffer()) && cur.inset().nargs() == 1;
1755                 break;
1756
1757         case LFUN_CHANGE_ACCEPT:
1758         case LFUN_CHANGE_REJECT:
1759                 // TODO: context-sensitive enabling of LFUN_CHANGE_ACCEPT/REJECT
1760                 // In principle, these LFUNs should only be enabled if there
1761                 // is a change at the current position/in the current selection.
1762                 // However, without proper optimizations, this will inevitably
1763                 // result in unacceptable performance - just imagine a user who
1764                 // wants to select the complete content of a long document.
1765                 enable = true;
1766                 break;
1767
1768         case LFUN_WORD_DELETE_FORWARD:
1769         case LFUN_WORD_DELETE_BACKWARD:
1770         case LFUN_LINE_DELETE:
1771         case LFUN_WORD_FORWARD:
1772         case LFUN_WORD_BACKWARD:
1773         case LFUN_CHAR_FORWARD:
1774         case LFUN_CHAR_FORWARD_SELECT:
1775         case LFUN_CHAR_BACKWARD:
1776         case LFUN_CHAR_BACKWARD_SELECT:
1777         case LFUN_UP:
1778         case LFUN_UP_SELECT:
1779         case LFUN_DOWN:
1780         case LFUN_DOWN_SELECT:
1781         case LFUN_PARAGRAPH_UP_SELECT:
1782         case LFUN_PARAGRAPH_DOWN_SELECT:
1783         case LFUN_SCREEN_UP_SELECT:
1784         case LFUN_SCREEN_DOWN_SELECT:
1785         case LFUN_LINE_BEGIN_SELECT:
1786         case LFUN_LINE_END_SELECT:
1787         case LFUN_WORD_FORWARD_SELECT:
1788         case LFUN_WORD_BACKWARD_SELECT:
1789         case LFUN_WORD_SELECT:
1790         case LFUN_PARAGRAPH_UP:
1791         case LFUN_PARAGRAPH_DOWN:
1792         case LFUN_SCREEN_UP:
1793         case LFUN_SCREEN_DOWN:
1794         case LFUN_LINE_BEGIN:
1795         case LFUN_LINE_END:
1796         case LFUN_BREAK_LINE:
1797         case LFUN_CHAR_DELETE_FORWARD:
1798         case LFUN_DELETE_FORWARD_SKIP:
1799         case LFUN_CHAR_DELETE_BACKWARD:
1800         case LFUN_DELETE_BACKWARD_SKIP:
1801         case LFUN_BREAK_PARAGRAPH:
1802         case LFUN_BREAK_PARAGRAPH_KEEP_LAYOUT:
1803         case LFUN_BREAK_PARAGRAPH_SKIP:
1804         case LFUN_PARAGRAPH_SPACING:
1805         case LFUN_INSET_INSERT:
1806         case LFUN_WORD_UPCASE:
1807         case LFUN_WORD_LOWCASE:
1808         case LFUN_WORD_CAPITALIZE:
1809         case LFUN_CHARS_TRANSPOSE:
1810         case LFUN_SERVER_GET_XY:
1811         case LFUN_SERVER_SET_XY:
1812         case LFUN_SERVER_GET_FONT:
1813         case LFUN_SERVER_GET_LAYOUT:
1814         case LFUN_LAYOUT:
1815         case LFUN_CLIPBOARD_PASTE:
1816         case LFUN_PRIMARY_SELECTION_PASTE:
1817         case LFUN_DATE_INSERT:
1818         case LFUN_SELF_INSERT:
1819         case LFUN_LINE_INSERT:
1820         case LFUN_PAGEBREAK_INSERT:
1821         case LFUN_CLEARPAGE_INSERT:
1822         case LFUN_CLEARDOUBLEPAGE_INSERT:
1823         case LFUN_MATH_DISPLAY:
1824         case LFUN_MATH_IMPORT_SELECTION:
1825         case LFUN_MATH_MODE:
1826         case LFUN_MATH_MACRO:
1827         case LFUN_MATH_MATRIX:
1828         case LFUN_MATH_DELIM:
1829         case LFUN_MATH_BIGDELIM:
1830         case LFUN_MATH_SUBSCRIPT:
1831         case LFUN_MATH_SUPERSCRIPT:
1832         case LFUN_FONT_DEFAULT:
1833         case LFUN_FONT_UNDERLINE:
1834         case LFUN_FONT_SIZE:
1835         case LFUN_LANGUAGE:
1836         case LFUN_FONT_FREE_APPLY:
1837         case LFUN_FONT_FREE_UPDATE:
1838         case LFUN_LAYOUT_PARAGRAPH:
1839         case LFUN_PARAGRAPH_UPDATE:
1840         case LFUN_ACCENT_UMLAUT:
1841         case LFUN_ACCENT_CIRCUMFLEX:
1842         case LFUN_ACCENT_GRAVE:
1843         case LFUN_ACCENT_ACUTE:
1844         case LFUN_ACCENT_TILDE:
1845         case LFUN_ACCENT_CEDILLA:
1846         case LFUN_ACCENT_MACRON:
1847         case LFUN_ACCENT_DOT:
1848         case LFUN_ACCENT_UNDERDOT:
1849         case LFUN_ACCENT_UNDERBAR:
1850         case LFUN_ACCENT_CARON:
1851         case LFUN_ACCENT_SPECIAL_CARON:
1852         case LFUN_ACCENT_BREVE:
1853         case LFUN_ACCENT_TIE:
1854         case LFUN_ACCENT_HUNGARIAN_UMLAUT:
1855         case LFUN_ACCENT_CIRCLE:
1856         case LFUN_ACCENT_OGONEK:
1857         case LFUN_THESAURUS_ENTRY:
1858         case LFUN_PARAGRAPH_PARAMS_APPLY:
1859         case LFUN_ESCAPE:
1860         case LFUN_BUFFER_END:
1861         case LFUN_BUFFER_BEGIN:
1862         case LFUN_BUFFER_BEGIN_SELECT:
1863         case LFUN_BUFFER_END_SELECT:
1864         case LFUN_UNICODE_INSERT:
1865                 // these are handled in our dispatch()
1866                 enable = true;
1867                 break;
1868
1869         default:
1870                 return false;
1871         }
1872
1873         if (code != InsetBase::NO_CODE
1874             && (cur.empty() || !cur.inset().insetAllowed(code)))
1875                 enable = false;
1876
1877         flag.enabled(enable);
1878         return true;
1879 }
1880
1881
1882 } // namespace lyx