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 "Cursor.h"
  29 #include "CutAndPaste.h"
  30 #include "support/debug.h"
  31 #include "DispatchResult.h"
  32 #include "ErrorList.h"
  33 #include "factory.h"
  34 #include "FuncRequest.h"
  35 #include "support/gettext.h"
  36 #include "InsetList.h"
  37 #include "Intl.h"
  38 #include "Language.h"
  39 #include "Layout.h"
  40 #include "LyXAction.h"
  41 #include "LyXFunc.h"
  42 #include "Lexer.h"
  43 #include "LyXRC.h"
  44 #include "Paragraph.h"
  45 #include "paragraph_funcs.h"
  46 #include "ParagraphParameters.h"
  47 #include "ParIterator.h"
  48 #include "TextClass.h"
  49 #include "TextMetrics.h"
  50 #include "VSpace.h"
  51
  52 #include "frontends/Clipboard.h"
  53 #include "frontends/Selection.h"
  54
  55 #include "insets/InsetCollapsable.h"
  56 #include "insets/InsetCommand.h"
  57 #include "insets/InsetFloatList.h"
  58 #include "insets/InsetNewline.h"
  59 #include "insets/InsetQuotes.h"
  60 #include "insets/InsetSpecialChar.h"
  61 #include "insets/InsetText.h"
  62 #include "insets/InsetInfo.h"
  63
  64 #include "support/lstrings.h"
  65 #include "support/convert.h"
  66 #include "support/lyxtime.h"
  67
  68 #include "mathed/InsetMathHull.h"
  69 #include "mathed/MathMacroTemplate.h"
  70
  71 #include <boost/next_prior.hpp>
  72
  73 #include <clocale>
  74 #include <sstream>
  75
  76 using namespace std;
  77 using namespace lyx::support;
  78
  79 namespace lyx {
  80
  81 using cap::copySelection;
  82 using cap::cutSelection;
  83 using cap::pasteFromStack;
  84 using cap::pasteClipboard;
  85 using cap::replaceSelection;
  86
  87 // globals...
  88 static Font freefont(ignore_font, ignore_language);
  89 static bool toggleall = false;
  90
  91 static void toggleAndShow(Cursor & cur, Text * text,
  92         Font const & font, bool toggleall = true)
  93 {
  94         text->toggleFree(cur, font, toggleall);
  95
  96         if (font.language() != ignore_language ||
  97             font.fontInfo().number() != FONT_IGNORE) {
  98                 TextMetrics const & tm = cur.bv().textMetrics(text);
  99                 if (cur.boundary() != tm.isRTLBoundary(cur.pit(), cur.pos(),
 100                                                        cur.real_current_font))
 101                         text->setCursor(cur, cur.pit(), cur.pos(),
 102                                         false, !cur.boundary());
 103         }
 104 }
 105
 106
 107 static void moveCursor(Cursor & cur, bool selecting)
 108 {
 109         if (selecting || cur.mark())
 110                 cur.setSelection();
 111 }
 112
 113
 114 static void finishChange(Cursor & cur, bool selecting)
 115 {
 116         cur.finishUndo();
 117         moveCursor(cur, selecting);
 118 }
 119
 120
 121 static void mathDispatch(Cursor & cur, FuncRequest const & cmd, bool display)
 122 {
 123         cur.recordUndo();
 124         docstring sel = cur.selectionAsString(false);
 125
 126         // It may happen that sel is empty but there is a selection
 127         replaceSelection(cur);
 128
 129         if (sel.empty()) {
 130 #ifdef ENABLE_ASSERTIONS
 131                 const int old_pos = cur.pos();
 132 #endif
 133                 cur.insert(new InsetMathHull(hullSimple));
 134                 BOOST_ASSERT(old_pos == cur.pos());
 135                 cur.nextInset()->edit(cur, true);
 136                 // don't do that also for LFUN_MATH_MODE
 137                 // unless you want end up with always changing
 138                 // to mathrm when opening an inlined inset --
 139                 // I really hate "LyXfunc overloading"...
 140                 if (display)
 141                         cur.dispatch(FuncRequest(LFUN_MATH_DISPLAY));
 142                 // Avoid an unnecessary undo step if cmd.argument
 143                 // is empty
 144                 if (!cmd.argument().empty())
 145                         cur.dispatch(FuncRequest(LFUN_MATH_INSERT,
 146                                                  cmd.argument()));
 147         } else {
 148                 // create a macro if we see "\\newcommand"
 149                 // somewhere, and an ordinary formula
 150                 // otherwise
 151                 if (sel.find(from_ascii("\\newcommand")) == string::npos
 152                                 && sel.find(from_ascii("\\newlyxcommand")) == string::npos
 153                                 && sel.find(from_ascii("\\def")) == string::npos)
 154                 {
 155                         InsetMathHull * formula = new InsetMathHull;
 156                         istringstream is(to_utf8(sel));
 157                         Lexer lex(0, 0);
 158                         lex.setStream(is);
 159                         formula->read(cur.buffer(), lex);
 160                         if (formula->getType() == hullNone)
 161                                 // Don't create pseudo formulas if
 162                                 // delimiters are left out
 163                                 formula->mutate(hullSimple);
 164                         cur.insert(formula);
 165                 } else {
 166                         cur.insert(new MathMacroTemplate(sel));
 167                 }
 168         }
 169         cur.message(from_utf8(N_("Math editor mode")));
 170 }
 171
 172
 173 static void specialChar(Cursor & cur, InsetSpecialChar::Kind kind)
 174 {
 175         cur.recordUndo();
 176         cap::replaceSelection(cur);
 177         cur.insert(new InsetSpecialChar(kind));
 178         cur.posForward();
 179 }
 180
 181
 182 static bool doInsertInset(Cursor & cur, Text * text,
 183         FuncRequest const & cmd, bool edit, bool pastesel)
 184 {
 185         Inset * inset = createInset(cur.bv().buffer(), cmd);
 186         if (!inset)
 187                 return false;
 188
 189         if (InsetCollapsable * ci = inset->asInsetCollapsable())
 190                 ci->setLayout(cur.bv().buffer().params());
 191
 192         cur.recordUndo();
 193         if (cmd.action == LFUN_INDEX_INSERT) {
 194                 docstring ds = subst(text->getStringToIndex(cur), '\n', ' ');
 195                 text->insertInset(cur, inset);
 196                 if (edit)
 197                         inset->edit(cur, true);
 198                 // Now put this into inset
 199                 static_cast<InsetCollapsable *>(inset)->text_.insertStringAsParagraphs(cur, ds);
 200         } else {
 201                 bool gotsel = false;
 202                 if (cur.selection()) {
 203                         lyx::dispatch(FuncRequest(LFUN_CUT));
 204                         gotsel = true;
 205                 }
 206                 text->insertInset(cur, inset);
 207
 208                 if (edit)
 209                         inset->edit(cur, true);
 210
 211                 if (gotsel && pastesel) {
 212                         lyx::dispatch(FuncRequest(LFUN_PASTE, "0"));
 213                         InsetText * insetText = dynamic_cast<InsetText *>(inset);
 214                         if (insetText && !insetText->allowMultiPar()
 215                             || cur.lastpit() == 0) {
 216                                 // reset first par to default
 217                                 LayoutPtr const layout =
 218                                         cur.buffer().params().getTextClass().defaultLayout();
 219                                 cur.text()->paragraphs().begin()->layout(layout);
 220                                 cur.pos() = 0;
 221                                 cur.pit() = 0;
 222                                 // Merge multiple paragraphs -- hack
 223                                 while (cur.lastpit() > 0) {
 224                                         mergeParagraph(cur.buffer().params(),
 225                                                 cur.text()->paragraphs(), 0);
 226                                 }
 227                         } else {
 228                                 // reset surrounding par to default
 229                                 docstring const layoutname =
 230                                         cur.buffer().params().getTextClass().defaultLayoutName();
 231                                 cur.leaveInset(*inset);
 232                                 text->setLayout(cur, layoutname);
 233                         }
 234                 }
 235         }
 236         return true;
 237 }
 238
 239
 240 string const freefont2string()
 241 {
 242         return freefont.toString(toggleall);
 243 }
 244
 245
 246 /// the type of outline operation
 247 enum OutlineOp {
 248         OutlineUp, // Move this header with text down
 249         OutlineDown,   // Move this header with text up
 250         OutlineIn, // Make this header deeper
 251         OutlineOut // Make this header shallower
 252 };
 253
 254
 255 static void outline(OutlineOp mode, Cursor & cur)
 256 {
 257         Buffer & buf = cur.buffer();
 258         pit_type & pit = cur.pit();
 259         ParagraphList & pars = buf.text().paragraphs();
 260         ParagraphList::iterator bgn = pars.begin();
 261         // The first paragraph of the area to be copied:
 262         ParagraphList::iterator start = boost::next(bgn, pit);
 263         // The final paragraph of area to be copied:
 264         ParagraphList::iterator finish = start;
 265         ParagraphList::iterator end = pars.end();
 266
 267         TextClass::const_iterator lit =
 268                 buf.params().getTextClass().begin();
 269         TextClass::const_iterator const lend =
 270                 buf.params().getTextClass().end();
 271
 272         int const thistoclevel = start->layout()->toclevel;
 273         int toclevel;
 274         switch (mode) {
 275                 case OutlineUp: {
 276                         // Move out (down) from this section header
 277                         if (finish != end)
 278                                 ++finish;
 279                         // Seek the one (on same level) below
 280                         for (; finish != end; ++finish) {
 281                                 toclevel = finish->layout()->toclevel;
 282                                 if (toclevel != Layout::NOT_IN_TOC
 283                                     && toclevel <= thistoclevel) {
 284                                         break;
 285                                 }
 286                         }
 287                         ParagraphList::iterator dest = start;
 288                         // Move out (up) from this header
 289                         if (dest == bgn)
 290                                 break;
 291                         // Search previous same-level header above
 292                         do {
 293                                 --dest;
 294                                 toclevel = dest->layout()->toclevel;
 295                         } while(dest != bgn
 296                                 && (toclevel == Layout::NOT_IN_TOC
 297                                     || toclevel > thistoclevel));
 298                         // Not found; do nothing
 299                         if (toclevel == Layout::NOT_IN_TOC || toclevel > thistoclevel)
 300                                 break;
 301                         pit_type const newpit = distance(bgn, dest);
 302                         pit_type const len = distance(start, finish);
 303                         pit_type const deletepit = pit + len;
 304                         buf.undo().recordUndo(cur, ATOMIC_UNDO, newpit, deletepit - 1);
 305                         pars.insert(dest, start, finish);
 306                         start = boost::next(pars.begin(), deletepit);
 307                         pit = newpit;
 308                         pars.erase(start, finish);
 309                         break;
 310                 }
 311                 case OutlineDown: {
 312                         // Go down out of current header:
 313                         if (finish != end)
 314                                 ++finish;
 315                         // Find next same-level header:
 316                         for (; finish != end; ++finish) {
 317                                 toclevel = finish->layout()->toclevel;
 318                                 if (toclevel != Layout::NOT_IN_TOC && toclevel <= thistoclevel)
 319                                         break;
 320                         }
 321                         ParagraphList::iterator dest = finish;
 322                         // Go one down from *this* header:
 323                         if (dest != end)
 324                                 ++dest;
 325                         else
 326                                 break;
 327                         // Go further down to find header to insert in front of:
 328                         for (; dest != end; ++dest) {
 329                                 toclevel = dest->layout()->toclevel;
 330                                 if (toclevel != Layout::NOT_IN_TOC && toclevel <= thistoclevel)
 331                                         break;
 332                         }
 333                         // One such was found:
 334                         pit_type newpit = distance(bgn, dest);
 335                         pit_type const len = distance(start, finish);
 336                         buf.undo().recordUndo(cur, ATOMIC_UNDO, pit, newpit - 1);
 337                         pars.insert(dest, start, finish);
 338                         start = boost::next(bgn, pit);
 339                         pit = newpit - len;
 340                         pars.erase(start, finish);
 341                         break;
 342                 }
 343                 case OutlineIn:
 344                         buf.undo().recordUndo(cur);
 345                         for (; lit != lend; ++lit) {
 346                                 if ((*lit)->toclevel == thistoclevel + 1 &&
 347                                     start->layout()->labeltype == (*lit)->labeltype) {
 348                                         start->layout((*lit));
 349                                         break;
 350                                 }
 351                         }
 352                         break;
 353                 case OutlineOut:
 354                         buf.undo().recordUndo(cur);
 355                         for (; lit != lend; ++lit) {
 356                                 if ((*lit)->toclevel == thistoclevel - 1 &&
 357                                     start->layout()->labeltype == (*lit)->labeltype) {
 358                                         start->layout((*lit));
 359                                         break;
 360                                 }
 361                         }
 362                         break;
 363                 default:
 364                         break;
 365         }
 366 }
 367
 368
 369 void Text::number(Cursor & cur)
 370 {
 371         FontInfo font = ignore_font;
 372         font.setNumber(FONT_TOGGLE);
 373         toggleAndShow(cur, this, Font(font));
 374 }
 375
 376
 377 bool Text::isRTL(Buffer const & buffer, Paragraph const & par) const
 378 {
 379         return par.isRTL(buffer.params());
 380 }
 381
 382
 383 void Text::dispatch(Cursor & cur, FuncRequest & cmd)
 384 {
 385         LYXERR(Debug::ACTION, "Text::dispatch: cmd: " << cmd);
 386
 387         // FIXME: We use the update flag to indicates wether a singlePar or a
 388         // full screen update is needed. We reset it here but shall we restore it
 389         // at the end?
 390         cur.noUpdate();
 391
 392         BOOST_ASSERT(cur.text() == this);
 393         BufferView * bv = &cur.bv();
 394         TextMetrics & tm = cur.bv().textMetrics(this);
 395         CursorSlice oldTopSlice = cur.top();
 396         bool oldBoundary = cur.boundary();
 397         bool sel = cur.selection();
 398         // Signals that, even if needsUpdate == false, an update of the
 399         // cursor paragraph is required
 400         bool singleParUpdate = lyxaction.funcHasFlag(cmd.action,
 401                 LyXAction::SingleParUpdate);
 402         // Signals that a full-screen update is required
 403         bool needsUpdate = !(lyxaction.funcHasFlag(cmd.action,
 404                 LyXAction::NoUpdate) || singleParUpdate);
 405         // Remember the old paragraph metric (_outer_ paragraph!)
 406         ParagraphMetrics const & pm = cur.bv().parMetrics(
 407                 cur.bottom().text(), cur.bottom().pit());
 408         Dimension olddim = pm.dim();
 409
 410         switch (cmd.action) {
 411
 412         case LFUN_PARAGRAPH_MOVE_DOWN: {
 413                 pit_type const pit = cur.pit();
 414                 recUndo(cur, pit, pit + 1);
 415                 cur.finishUndo();
 416                 swap(pars_[pit], pars_[pit + 1]);
 417                 updateLabels(cur.buffer());
 418                 needsUpdate = true;
 419                 ++cur.pit();
 420                 break;
 421         }
 422
 423         case LFUN_PARAGRAPH_MOVE_UP: {
 424                 pit_type const pit = cur.pit();
 425                 recUndo(cur, pit - 1, pit);
 426                 cur.finishUndo();
 427                 swap(pars_[pit], pars_[pit - 1]);
 428                 updateLabels(cur.buffer());
 429                 --cur.pit();
 430                 needsUpdate = true;
 431                 break;
 432         }
 433
 434         case LFUN_APPENDIX: {
 435                 Paragraph & par = cur.paragraph();
 436                 bool start = !par.params().startOfAppendix();
 437
 438 // FIXME: The code below only makes sense at top level.
 439 // Should LFUN_APPENDIX be restricted to top-level paragraphs?
 440                 // ensure that we have only one start_of_appendix in this document
 441                 // FIXME: this don't work for multipart document!
 442                 for (pit_type tmp = 0, end = pars_.size(); tmp != end; ++tmp) {
 443                         if (pars_[tmp].params().startOfAppendix()) {
 444                                 recUndo(cur, tmp);
 445                                 pars_[tmp].params().startOfAppendix(false);
 446                                 break;
 447                         }
 448                 }
 449
 450                 cur.recordUndo();
 451                 par.params().startOfAppendix(start);
 452
 453                 // we can set the refreshing parameters now
 454                 updateLabels(cur.buffer());
 455                 break;
 456         }
 457
 458         case LFUN_WORD_DELETE_FORWARD:
 459                 if (cur.selection()) {
 460                         cutSelection(cur, true, false);
 461                 } else
 462                         deleteWordForward(cur);
 463                 finishChange(cur, false);
 464                 break;
 465
 466         case LFUN_WORD_DELETE_BACKWARD:
 467                 if (cur.selection()) {
 468                         cutSelection(cur, true, false);
 469                 } else
 470                         deleteWordBackward(cur);
 471                 finishChange(cur, false);
 472                 break;
 473
 474         case LFUN_LINE_DELETE:
 475                 if (cur.selection()) {
 476                         cutSelection(cur, true, false);
 477                 } else
 478                         tm.deleteLineForward(cur);
 479                 finishChange(cur, false);
 480                 break;
 481
 482         case LFUN_BUFFER_BEGIN:
 483         case LFUN_BUFFER_BEGIN_SELECT:
 484                 needsUpdate |= cur.selHandle(cmd.action == LFUN_BUFFER_BEGIN_SELECT);
 485                 if (cur.depth() == 1) {
 486                         needsUpdate |= cursorTop(cur);
 487                 } else {
 488                         cur.undispatched();
 489                 }
 490                 cur.updateFlags(Update::FitCursor);
 491                 break;
 492
 493         case LFUN_BUFFER_END:
 494         case LFUN_BUFFER_END_SELECT:
 495                 needsUpdate |= cur.selHandle(cmd.action == LFUN_BUFFER_END_SELECT);
 496                 if (cur.depth() == 1) {
 497                         needsUpdate |= cursorBottom(cur);
 498                 } else {
 499                         cur.undispatched();
 500                 }
 501                 cur.updateFlags(Update::FitCursor);
 502                 break;
 503
 504         case LFUN_CHAR_FORWARD:
 505         case LFUN_CHAR_FORWARD_SELECT:
 506                 //LYXERR0(" LFUN_CHAR_FORWARD[SEL]:\n" << cur);
 507                 needsUpdate |= cur.selHandle(cmd.action == LFUN_CHAR_FORWARD_SELECT);
 508                 needsUpdate |= cursorForward(cur);
 509
 510                 if (!needsUpdate && oldTopSlice == cur.top()
 511                                 && cur.boundary() == oldBoundary) {
 512                         cur.undispatched();
 513                         cmd = FuncRequest(LFUN_FINISHED_FORWARD);
 514                 }
 515                 break;
 516
 517         case LFUN_CHAR_BACKWARD:
 518         case LFUN_CHAR_BACKWARD_SELECT:
 519                 //lyxerr << "handle LFUN_CHAR_BACKWARD[_SELECT]:\n" << cur << endl;
 520                 needsUpdate |= cur.selHandle(cmd.action == LFUN_CHAR_BACKWARD_SELECT);
 521                 needsUpdate |= cursorBackward(cur);
 522
 523                 if (!needsUpdate && oldTopSlice == cur.top()
 524                         && cur.boundary() == oldBoundary) {
 525                         cur.undispatched();
 526                         cmd = FuncRequest(LFUN_FINISHED_BACKWARD);
 527                 }
 528                 break;
 529
 530         case LFUN_CHAR_LEFT:
 531         case LFUN_CHAR_LEFT_SELECT:
 532                 //FIXME: for visual cursor, really move left
 533                 if (reverseDirectionNeeded(cur)) {
 534                         cmd.action = cmd.action == LFUN_CHAR_LEFT_SELECT ?
 535                                         LFUN_CHAR_FORWARD_SELECT : LFUN_CHAR_FORWARD;
 536                 } else {
 537                         cmd.action = cmd.action == LFUN_CHAR_LEFT_SELECT ?
 538                                         LFUN_CHAR_BACKWARD_SELECT : LFUN_CHAR_BACKWARD;
 539                 }
 540                 dispatch(cur, cmd);
 541                 return;
 542
 543         case LFUN_CHAR_RIGHT:
 544         case LFUN_CHAR_RIGHT_SELECT:
 545                 //FIXME: for visual cursor, really move right
 546                 if (reverseDirectionNeeded(cur)) {
 547                         cmd.action = cmd.action == LFUN_CHAR_RIGHT_SELECT ?
 548                                         LFUN_CHAR_BACKWARD_SELECT : LFUN_CHAR_BACKWARD;
 549                 } else {
 550                         cmd.action = cmd.action == LFUN_CHAR_RIGHT_SELECT ?
 551                                         LFUN_CHAR_FORWARD_SELECT : LFUN_CHAR_FORWARD;
 552                 }
 553                 dispatch(cur, cmd);
 554                 return;
 555
 556         case LFUN_UP_SELECT:
 557         case LFUN_DOWN_SELECT:
 558         case LFUN_UP:
 559         case LFUN_DOWN: {
 560                 // stop/start the selection
 561                 bool select = cmd.action == LFUN_DOWN_SELECT ||
 562                         cmd.action == LFUN_UP_SELECT;
 563                 cur.selHandle(select);
 564
 565                 // move cursor up/down
 566                 bool up = cmd.action == LFUN_UP_SELECT || cmd.action == LFUN_UP;
 567                 bool const successful = cur.upDownInText(up, needsUpdate);
 568                 if (successful) {
 569                         // notify insets which were left and get their update flags
 570                         notifyCursorLeaves(cur.beforeDispatchCursor(), cur);
 571                         cur.fixIfBroken();
 572
 573                         // redraw if you leave mathed (for the decorations)
 574                         needsUpdate |= cur.beforeDispatchCursor().inMathed();
 575                 } else
 576                         cur.undispatched();
 577
 578                 break;
 579         }
 580
 581         case LFUN_PARAGRAPH_UP:
 582         case LFUN_PARAGRAPH_UP_SELECT:
 583                 needsUpdate |= cur.selHandle(cmd.action == LFUN_PARAGRAPH_UP_SELECT);
 584                 needsUpdate |= cursorUpParagraph(cur);
 585                 break;
 586
 587         case LFUN_PARAGRAPH_DOWN:
 588         case LFUN_PARAGRAPH_DOWN_SELECT:
 589                 needsUpdate |= cur.selHandle(cmd.action == LFUN_PARAGRAPH_DOWN_SELECT);
 590                 needsUpdate |= cursorDownParagraph(cur);
 591                 break;
 592
 593         case LFUN_SCREEN_UP_SELECT:
 594                 needsUpdate |= cur.selHandle(true);
 595                 if (cur.pit() == 0 && cur.textRow().pos() == 0)
 596                         cur.undispatched();
 597                 else {
 598                         tm.cursorPrevious(cur);
 599                 }
 600                 break;
 601
 602         case LFUN_SCREEN_DOWN_SELECT:
 603                 needsUpdate |= cur.selHandle(true);
 604                 if (cur.pit() == cur.lastpit()
 605                           && cur.textRow().endpos() == cur.lastpos())
 606                         cur.undispatched();
 607                 else {
 608                         tm.cursorNext(cur);
 609                 }
 610                 break;
 611
 612         case LFUN_LINE_BEGIN:
 613         case LFUN_LINE_BEGIN_SELECT:
 614                 needsUpdate |= cur.selHandle(cmd.action == LFUN_LINE_BEGIN_SELECT);
 615                 needsUpdate |= tm.cursorHome(cur);
 616                 break;
 617
 618         case LFUN_LINE_END:
 619         case LFUN_LINE_END_SELECT:
 620                 needsUpdate |= cur.selHandle(cmd.action == LFUN_LINE_END_SELECT);
 621                 needsUpdate |= tm.cursorEnd(cur);
 622                 break;
 623
 624         case LFUN_WORD_RIGHT:
 625         case LFUN_WORD_RIGHT_SELECT:
 626                 //FIXME: for visual cursor mode, really move right
 627                 if (reverseDirectionNeeded(cur)) {
 628                         cmd.action = cmd.action == LFUN_WORD_RIGHT_SELECT ?
 629                                         LFUN_WORD_BACKWARD_SELECT : LFUN_WORD_BACKWARD;
 630                 } else {
 631                         cmd.action = cmd.action == LFUN_WORD_RIGHT_SELECT ?
 632                                         LFUN_WORD_FORWARD_SELECT : LFUN_WORD_FORWARD;
 633                 }
 634                 dispatch(cur, cmd);
 635                 return;
 636
 637         case LFUN_WORD_FORWARD:
 638         case LFUN_WORD_FORWARD_SELECT:
 639                 needsUpdate |= cur.selHandle(cmd.action == LFUN_WORD_FORWARD_SELECT);
 640                 needsUpdate |= cursorForwardOneWord(cur);
 641                 break;
 642
 643         case LFUN_WORD_LEFT:
 644         case LFUN_WORD_LEFT_SELECT:
 645                 //FIXME: for visual cursor mode, really move left
 646                 if (reverseDirectionNeeded(cur)) {
 647                         cmd.action = cmd.action == LFUN_WORD_LEFT_SELECT ?
 648                                         LFUN_WORD_FORWARD_SELECT : LFUN_WORD_FORWARD;
 649                 } else {
 650                         cmd.action = cmd.action == LFUN_WORD_LEFT_SELECT ?
 651                                         LFUN_WORD_BACKWARD_SELECT : LFUN_WORD_BACKWARD;
 652                 }
 653                 dispatch(cur, cmd);
 654                 return;
 655
 656         case LFUN_WORD_BACKWARD:
 657         case LFUN_WORD_BACKWARD_SELECT:
 658                 needsUpdate |= cur.selHandle(cmd.action == LFUN_WORD_BACKWARD_SELECT);
 659                 needsUpdate |= cursorBackwardOneWord(cur);
 660                 break;
 661
 662         case LFUN_WORD_SELECT: {
 663                 selectWord(cur, WHOLE_WORD);
 664                 finishChange(cur, true);
 665                 break;
 666         }
 667
 668         case LFUN_NEW_LINE: {
 669                 // Not allowed by LaTeX (labels or empty par)
 670                 if (cur.pos() > cur.paragraph().beginOfBody()) {
 671                         // this avoids a double undo
 672                         // FIXME: should not be needed, ideally
 673                         if (!cur.selection())
 674                                 cur.recordUndo();
 675                         cap::replaceSelection(cur);
 676                         cur.insert(new InsetNewline);
 677                         cur.posForward();
 678                         moveCursor(cur, false);
 679                 }
 680                 break;
 681         }
 682
 683         case LFUN_LINE_BREAK: {
 684                 // Not allowed by LaTeX (labels or empty par)
 685                 if (cur.pos() > cur.paragraph().beginOfBody()) {
 686                         // this avoids a double undo
 687                         // FIXME: should not be needed, ideally
 688                         if (!cur.selection())
 689                                 cur.recordUndo();
 690                         cap::replaceSelection(cur);
 691                         cur.insert(new InsetLinebreak);
 692                         cur.posForward();
 693                         moveCursor(cur, false);
 694                 }
 695                 break;
 696         }
 697
 698         case LFUN_CHAR_DELETE_FORWARD:
 699                 if (!cur.selection()) {
 700                         if (cur.pos() == cur.paragraph().size())
 701                                 // Par boundary, force full-screen update
 702                                 singleParUpdate = false;
 703                         needsUpdate |= erase(cur);
 704                         cur.resetAnchor();
 705                         // It is possible to make it a lot faster still
 706                         // just comment out the line below...
 707                 } else {
 708                         cutSelection(cur, true, false);
 709                         singleParUpdate = false;
 710                 }
 711                 moveCursor(cur, false);
 712                 break;
 713
 714         case LFUN_DELETE_FORWARD_SKIP:
 715                 // Reverse the effect of LFUN_BREAK_PARAGRAPH_SKIP.
 716                 if (!cur.selection()) {
 717                         if (cur.pos() == cur.lastpos()) {
 718                                 cursorForward(cur);
 719                                 cursorBackward(cur);
 720                         }
 721                         erase(cur);
 722                         cur.resetAnchor();
 723                 } else {
 724                         cutSelection(cur, true, false);
 725                 }
 726                 break;
 727
 728
 729         case LFUN_CHAR_DELETE_BACKWARD:
 730                 if (!cur.selection()) {
 731                         if (bv->getIntl().getTransManager().backspace()) {
 732                                 // Par boundary, full-screen update
 733                                 if (cur.pos() == 0)
 734                                         singleParUpdate = false;
 735                                 needsUpdate |= backspace(cur);
 736                                 cur.resetAnchor();
 737                                 // It is possible to make it a lot faster still
 738                                 // just comment out the line below...
 739                         }
 740                 } else {
 741                         cutSelection(cur, true, false);
 742                         singleParUpdate = false;
 743                 }
 744                 break;
 745
 746         case LFUN_DELETE_BACKWARD_SKIP:
 747                 // Reverse the effect of LFUN_BREAK_PARAGRAPH_SKIP.
 748                 if (!cur.selection()) {
 749                         // FIXME: look here
 750                         //CursorSlice cur = cursor();
 751                         backspace(cur);
 752                         //anchor() = cur;
 753                 } else {
 754                         cutSelection(cur, true, false);
 755                 }
 756                 break;
 757
 758         case LFUN_BREAK_PARAGRAPH:
 759                 cap::replaceSelection(cur);
 760                 breakParagraph(cur, cmd.argument() == "inverse");
 761                 cur.resetAnchor();
 762                 break;
 763
 764         case LFUN_BREAK_PARAGRAPH_SKIP: {
 765                 // When at the beginning of a paragraph, remove
 766                 // indentation.  Otherwise, do the same as LFUN_BREAK_PARAGRAPH.
 767                 cap::replaceSelection(cur);
 768                 if (cur.pos() == 0)
 769                         cur.paragraph().params().labelWidthString(docstring());
 770                 else
 771                         breakParagraph(cur, false);
 772                 cur.resetAnchor();
 773                 break;
 774         }
 775
 776         // TODO
 777         // With the creation of LFUN_PARAGRAPH_PARAMS, this is now redundant,
 778         // as its duties can be performed there. Should it be removed??
 779         // FIXME For now, it can just dispatch LFUN_PARAGRAPH_PARAMS...
 780         case LFUN_PARAGRAPH_SPACING: {
 781                 Paragraph & par = cur.paragraph();
 782                 Spacing::Space cur_spacing = par.params().spacing().getSpace();
 783                 string cur_value = "1.0";
 784                 if (cur_spacing == Spacing::Other)
 785                         cur_value = par.params().spacing().getValueAsString();
 786
 787                 istringstream is(to_utf8(cmd.argument()));
 788                 string tmp;
 789                 is >> tmp;
 790                 Spacing::Space new_spacing = cur_spacing;
 791                 string new_value = cur_value;
 792                 if (tmp.empty()) {
 793                         lyxerr << "Missing argument to `paragraph-spacing'"
 794                                << endl;
 795                 } else if (tmp == "single") {
 796                         new_spacing = Spacing::Single;
 797                 } else if (tmp == "onehalf") {
 798                         new_spacing = Spacing::Onehalf;
 799                 } else if (tmp == "double") {
 800                         new_spacing = Spacing::Double;
 801                 } else if (tmp == "other") {
 802                         new_spacing = Spacing::Other;
 803                         string tmpval = "0.0";
 804                         is >> tmpval;
 805                         lyxerr << "new_value = " << tmpval << endl;
 806                         if (tmpval != "0.0")
 807                                 new_value = tmpval;
 808                 } else if (tmp == "default") {
 809                         new_spacing = Spacing::Default;
 810                 } else {
 811                         lyxerr << to_utf8(_("Unknown spacing argument: "))
 812                                << to_utf8(cmd.argument()) << endl;
 813                 }
 814                 if (cur_spacing != new_spacing || cur_value != new_value)
 815                         par.params().spacing(Spacing(new_spacing, new_value));
 816                 break;
 817         }
 818
 819         case LFUN_INSET_INSERT: {
 820                 cur.recordUndo();
 821                 Inset * inset = createInset(bv->buffer(), cmd);
 822                 if (inset) {
 823                         // FIXME (Abdel 01/02/2006):
 824                         // What follows would be a partial fix for bug 2154:
 825                         //   http://bugzilla.lyx.org/show_bug.cgi?id=2154
 826                         // This automatically put the label inset _after_ a
 827                         // numbered section. It should be possible to extend the mechanism
 828                         // to any kind of LateX environement.
 829                         // The correct way to fix that bug would be at LateX generation.
 830                         // I'll let the code here for reference as it could be used for some
 831                         // other feature like "automatic labelling".
 832                         /*
 833                         Paragraph & par = pars_[cur.pit()];
 834                         if (inset->lyxCode() == LABEL_CODE
 835                                 && par.layout()->labeltype == LABEL_COUNTER) {
 836                                 // Go to the end of the paragraph
 837                                 // Warning: Because of Change-Tracking, the last
 838                                 // position is 'size()' and not 'size()-1':
 839                                 cur.pos() = par.size();
 840                                 // Insert a new paragraph
 841                                 FuncRequest fr(LFUN_BREAK_PARAGRAPH);
 842                                 dispatch(cur, fr);
 843                         }
 844                         */
 845                         if (cur.selection())
 846                                 cutSelection(cur, true, false);
 847                         insertInset(cur, inset);
 848                         cur.posForward();
 849                 }
 850                 break;
 851         }
 852
 853         case LFUN_INSET_DISSOLVE:
 854                 needsUpdate |= dissolveInset(cur);
 855                 break;
 856
 857         case LFUN_INSET_SETTINGS:
 858                 cur.inset().showInsetDialog(bv);
 859                 break;
 860
 861         case LFUN_SPACE_INSERT:
 862                 if (cur.paragraph().layout()->free_spacing)
 863                         insertChar(cur, ' ');
 864                 else {
 865                         doInsertInset(cur, this, cmd, false, false);
 866                         cur.posForward();
 867                 }
 868                 moveCursor(cur, false);
 869                 break;
 870
 871         case LFUN_SPECIALCHAR_INSERT: {
 872                 string const name = to_utf8(cmd.argument());
 873                 if (name == "hyphenation")
 874                         specialChar(cur, InsetSpecialChar::HYPHENATION);
 875                 else if (name == "ligature-break")
 876                         specialChar(cur, InsetSpecialChar::LIGATURE_BREAK);
 877                 else if (name == "slash")
 878                         specialChar(cur, InsetSpecialChar::SLASH);
 879                 else if (name == "nobreakdash")
 880                         specialChar(cur, InsetSpecialChar::NOBREAKDASH);
 881                 else if (name == "dots")
 882                         specialChar(cur, InsetSpecialChar::LDOTS);
 883                 else if (name == "end-of-sentence")
 884                         specialChar(cur, InsetSpecialChar::END_OF_SENTENCE);
 885                 else if (name == "menu-separator")
 886                         specialChar(cur, InsetSpecialChar::MENU_SEPARATOR);
 887                 else if (name.empty())
 888                         lyxerr << "LyX function 'specialchar-insert' needs an argument." << endl;
 889                 else
 890                         lyxerr << "Wrong argument for LyX function 'specialchar-insert'." << endl;
 891                 break;
 892         }
 893
 894         case LFUN_WORD_UPCASE:
 895                 changeCase(cur, text_uppercase);
 896                 break;
 897
 898         case LFUN_WORD_LOWCASE:
 899                 changeCase(cur, text_lowercase);
 900                 break;
 901
 902         case LFUN_WORD_CAPITALIZE:
 903                 changeCase(cur, text_capitalization);
 904                 break;
 905
 906         case LFUN_CHARS_TRANSPOSE:
 907                 charsTranspose(cur);
 908                 break;
 909
 910         case LFUN_PASTE:
 911                 cur.message(_("Paste"));
 912                 cap::replaceSelection(cur);
 913                 if (cmd.argument().empty() && !theClipboard().isInternal())
 914                         pasteClipboard(cur, bv->buffer().errorList("Paste"));
 915                 else {
 916                         string const arg(to_utf8(cmd.argument()));
 917                         pasteFromStack(cur, bv->buffer().errorList("Paste"),
 918                                         isStrUnsignedInt(arg) ?
 919                                                 convert<unsigned int>(arg) :
 920                                                 0);
 921                 }
 922                 bv->buffer().errors("Paste");
 923                 cur.clearSelection(); // bug 393
 924                 cur.finishUndo();
 925                 break;
 926
 927         case LFUN_CUT:
 928                 cutSelection(cur, true, true);
 929                 cur.message(_("Cut"));
 930                 break;
 931
 932         case LFUN_COPY:
 933                 copySelection(cur);
 934                 cur.message(_("Copy"));
 935                 break;
 936
 937         case LFUN_SERVER_GET_XY:
 938                 cur.message(from_utf8(
 939                         convert<string>(tm.cursorX(cur.top(), cur.boundary()))
 940                         + ' ' + convert<string>(tm.cursorY(cur.top(), cur.boundary()))));
 941                 break;
 942
 943         case LFUN_SERVER_SET_XY: {
 944                 int x = 0;
 945                 int y = 0;
 946                 istringstream is(to_utf8(cmd.argument()));
 947                 is >> x >> y;
 948                 if (!is)
 949                         lyxerr << "SETXY: Could not parse coordinates in '"
 950                                << to_utf8(cmd.argument()) << endl;
 951                 else
 952                         tm.setCursorFromCoordinates(cur, x, y);
 953                 break;
 954         }
 955
 956         case LFUN_SERVER_GET_FONT:
 957                 if (cur.current_font.fontInfo().shape() == ITALIC_SHAPE)
 958                         cur.message(from_ascii("E"));
 959                 else if (cur.current_font.fontInfo().shape() == SMALLCAPS_SHAPE)
 960                         cur.message(from_ascii("N"));
 961                 else
 962                         cur.message(from_ascii("0"));
 963                 break;
 964
 965         case LFUN_SERVER_GET_LAYOUT:
 966                 cur.message(cur.paragraph().layout()->name());
 967                 break;
 968
 969         case LFUN_LAYOUT: {
 970                 docstring layout = cmd.argument();
 971                 LYXERR(Debug::INFO, "LFUN_LAYOUT: (arg) " << to_utf8(layout));
 972
 973                 docstring const old_layout = cur.paragraph().layout()->name();
 974
 975                 // Derive layout number from given argument (string)
 976                 // and current buffer's textclass (number)
 977                 TextClass const & tclass = bv->buffer().params().getTextClass();
 978                 if (layout.empty())
 979                         layout = tclass.defaultLayoutName();
 980                 bool hasLayout = tclass.hasLayout(layout);
 981
 982                 // If the entry is obsolete, use the new one instead.
 983                 if (hasLayout) {
 984                         docstring const & obs = tclass[layout]->obsoleted_by();
 985                         if (!obs.empty())
 986                                 layout = obs;
 987                 }
 988
 989                 if (!hasLayout) {
 990                         cur.errorMessage(from_utf8(N_("Layout ")) + cmd.argument() +
 991                                 from_utf8(N_(" not known")));
 992                         break;
 993                 }
 994
 995                 bool change_layout = (old_layout != layout);
 996
 997                 if (!change_layout && cur.selection() &&
 998                         cur.selBegin().pit() != cur.selEnd().pit())
 999                 {
1000                         pit_type spit = cur.selBegin().pit();
1001                         pit_type epit = cur.selEnd().pit() + 1;
1002                         while (spit != epit) {
1003                                 if (pars_[spit].layout()->name() != old_layout) {
1004                                         change_layout = true;
1005                                         break;
1006                                 }
1007                                 ++spit;
1008                         }
1009                 }
1010
1011                 if (change_layout)
1012                         setLayout(cur, layout);
1013
1014                 break;
1015         }
1016
1017         case LFUN_CLIPBOARD_PASTE:
1018                 cur.clearSelection();
1019                 pasteClipboard(cur, bv->buffer().errorList("Paste"),
1020                                cmd.argument() == "paragraph");
1021                 bv->buffer().errors("Paste");
1022                 break;
1023
1024         case LFUN_PRIMARY_SELECTION_PASTE:
1025                 pasteString(cur, theSelection().get(),
1026                             cmd.argument() == "paragraph");
1027                 break;
1028
1029         case LFUN_UNICODE_INSERT: {
1030                 if (cmd.argument().empty())
1031                         break;
1032                 docstring hexstring = cmd.argument();
1033                 if (isHex(hexstring)) {
1034                         char_type c = hexToInt(hexstring);
1035                         if (c >= 32 && c < 0x10ffff) {
1036                                 lyxerr << "Inserting c: " << c << endl;
1037                                 docstring s = docstring(1, c);
1038                                 lyx::dispatch(FuncRequest(LFUN_SELF_INSERT, s));
1039                         }
1040                 }
1041                 break;
1042         }
1043
1044         case LFUN_QUOTE_INSERT: {
1045                 Paragraph & par = cur.paragraph();
1046                 pos_type pos = cur.pos();
1047                 BufferParams const & bufparams = bv->buffer().params();
1048                 LayoutPtr const & style = par.layout();
1049                 if (!style->pass_thru
1050                     && par.getFontSettings(bufparams, pos).language()->lang() != "hebrew") {
1051                         // this avoids a double undo
1052                         // FIXME: should not be needed, ideally
1053                         if (!cur.selection())
1054                                 cur.recordUndo();
1055                         cap::replaceSelection(cur);
1056                         pos = cur.pos();
1057                         char_type c;
1058                         if (pos == 0)
1059                                 c = ' ';
1060                         else if (cur.prevInset() && cur.prevInset()->isSpace())
1061                                 c = ' ';
1062                         else
1063                                 c = par.getChar(pos - 1);
1064                         string arg = to_utf8(cmd.argument());
1065                         if (arg == "single")
1066                                 cur.insert(new InsetQuotes(c,
1067                                     bufparams.quotes_language,
1068                                     InsetQuotes::SingleQ));
1069                         else
1070                                 cur.insert(new InsetQuotes(c,
1071                                     bufparams.quotes_language,
1072                                     InsetQuotes::DoubleQ));
1073                         cur.posForward();
1074                 }
1075                 else
1076                         lyx::dispatch(FuncRequest(LFUN_SELF_INSERT, "\""));
1077                 break;
1078         }
1079
1080         case LFUN_DATE_INSERT: {
1081                 string const format = cmd.argument().empty()
1082                         ? lyxrc.date_insert_format : to_utf8(cmd.argument());
1083                 string const time = formatted_time(current_time(), format);
1084                 lyx::dispatch(FuncRequest(LFUN_SELF_INSERT, time));
1085                 break;
1086         }
1087
1088         case LFUN_MOUSE_TRIPLE:
1089                 if (cmd.button() == mouse_button::button1) {
1090                         tm.cursorHome(cur);
1091                         cur.resetAnchor();
1092                         tm.cursorEnd(cur);
1093                         cur.setSelection();
1094                         bv->cursor() = cur;
1095                 }
1096                 break;
1097
1098         case LFUN_MOUSE_DOUBLE:
1099                 if (cmd.button() == mouse_button::button1) {
1100                         selectWord(cur, WHOLE_WORD_STRICT);
1101                         bv->cursor() = cur;
1102                 }
1103                 break;
1104
1105         // Single-click on work area
1106         case LFUN_MOUSE_PRESS: {
1107                 // Right click on a footnote flag opens float menu
1108                 // FIXME: Why should we clear the selection in this case?
1109                 if (cmd.button() == mouse_button::button3)
1110                         cur.clearSelection();
1111
1112                 bool do_selection = cmd.button() == mouse_button::button1
1113                         && cmd.argument() == "region-select";
1114                 // Set the cursor
1115                 bool update = bv->mouseSetCursor(cur, do_selection);
1116
1117                 // Insert primary selection with middle mouse
1118                 // if there is a local selection in the current buffer,
1119                 // insert this
1120                 if (cmd.button() == mouse_button::button2) {
1121                         if (cap::selection()) {
1122                                 // Copy the selection buffer to the clipboard
1123                                 // stack, because we want it to appear in the
1124                                 // "Edit->Paste recent" menu.
1125                                 cap::copySelectionToStack();
1126
1127                                 cap::pasteSelection(bv->cursor(),
1128                                                     bv->buffer().errorList("Paste"));
1129                                 bv->buffer().errors("Paste");
1130                                 bv->buffer().markDirty();
1131                                 bv->cursor().finishUndo();
1132                         } else {
1133                                 lyx::dispatch(FuncRequest(LFUN_PRIMARY_SELECTION_PASTE, "paragraph"));
1134                         }
1135                 }
1136
1137                 // we have to update after dEPM triggered
1138                 if (!update && cmd.button() == mouse_button::button1) {
1139                         needsUpdate = false;
1140                         cur.noUpdate();
1141                 }
1142
1143                 break;
1144         }
1145
1146         case LFUN_MOUSE_MOTION: {
1147                 // Only use motion with button 1
1148                 //if (cmd.button() != mouse_button::button1)
1149                 //      return false;
1150
1151                 // ignore motions deeper nested than the real anchor
1152                 Cursor & bvcur = cur.bv().cursor();
1153                 if (!bvcur.anchor_.hasPart(cur)) {
1154                         cur.undispatched();
1155                         break;
1156                 }
1157                 CursorSlice old = bvcur.top();
1158
1159                 int const wh = bv->workHeight();
1160                 int const y = max(0, min(wh - 1, cmd.y));
1161
1162                 tm.setCursorFromCoordinates(cur, cmd.x, y);
1163                 cur.setTargetX(cmd.x);
1164                 if (cmd.y >= wh)
1165                         lyx::dispatch(FuncRequest(LFUN_DOWN_SELECT));
1166                 else if (cmd.y < 0)
1167                         lyx::dispatch(FuncRequest(LFUN_UP_SELECT));
1168                 // This is to allow jumping over large insets
1169                 if (cur.top() == old) {
1170                         if (cmd.y >= wh)
1171                                 lyx::dispatch(FuncRequest(LFUN_DOWN_SELECT));
1172                         else if (cmd.y < 0)
1173                                 lyx::dispatch(FuncRequest(LFUN_UP_SELECT));
1174                 }
1175
1176                 if (cur.top() == old)
1177                         cur.noUpdate();
1178                 else {
1179                         // FIXME: This is brute force! But without it the selected
1180                         // area is not corrected updated while moving the mouse.
1181                         cur.updateFlags(Update::Force | Update::FitCursor);
1182                         // don't set anchor_
1183                         bvcur.setCursor(cur);
1184                         bvcur.selection() = true;
1185                         //lyxerr << "MOTION: " << bv->cursor() << endl;
1186                 }
1187                 break;
1188         }
1189
1190         case LFUN_MOUSE_RELEASE: {
1191                 if (cmd.button() == mouse_button::button2)
1192                         break;
1193
1194                 if (cmd.button() == mouse_button::button1) {
1195                         // if there is new selection, update persistent
1196                         // selection, otherwise, single click does not
1197                         // clear persistent selection buffer
1198                         if (cur.selection()) {
1199                                 // finish selection
1200                                 // if double click, cur is moved to the end of word by selectWord
1201                                 // but bvcur is current mouse position
1202                                 Cursor & bvcur = cur.bv().cursor();
1203                                 bvcur.selection() = true;
1204                         }
1205                         needsUpdate = false;
1206                         cur.noUpdate();
1207                 }
1208
1209                 break;
1210         }
1211
1212         case LFUN_SELF_INSERT: {
1213                 if (cmd.argument().empty())
1214                         break;
1215
1216                 // Automatically delete the currently selected
1217                 // text and replace it with what is being
1218                 // typed in now. Depends on lyxrc settings
1219                 // "auto_region_delete", which defaults to
1220                 // true (on).
1221
1222                 if (lyxrc.auto_region_delete && cur.selection())
1223                         cutSelection(cur, false, false);
1224
1225                 cur.clearSelection();
1226                 Font const old_font = cur.real_current_font;
1227
1228                 docstring::const_iterator cit = cmd.argument().begin();
1229                 docstring::const_iterator end = cmd.argument().end();
1230                 for (; cit != end; ++cit)
1231                         bv->translateAndInsert(*cit, this, cur);
1232
1233                 cur.resetAnchor();
1234                 moveCursor(cur, false);
1235                 break;
1236         }
1237
1238         case LFUN_HYPERLINK_INSERT: {
1239                 InsetCommandParams p(HYPERLINK_CODE);
1240                 docstring content;
1241                 if (cur.selection()) {
1242                         content = cur.selectionAsString(false);
1243                         cutSelection(cur, true, false);
1244                 }
1245                 p["target"] = (cmd.argument().empty()) ?
1246                         content : cmd.argument();
1247                 string const data = InsetCommandMailer::params2string("href", p);
1248                 if (p["target"].empty()) {
1249                         bv->showDialog("href", data);
1250                 } else {
1251                         FuncRequest fr(LFUN_INSET_INSERT, data);
1252                         dispatch(cur, fr);
1253                 }
1254                 break;
1255         }
1256
1257         case LFUN_LABEL_INSERT: {
1258                 InsetCommandParams p(LABEL_CODE);
1259                 // Try to generate a valid label
1260                 p["name"] = (cmd.argument().empty()) ?
1261                         cur.getPossibleLabel() :
1262                         cmd.argument();
1263                 string const data = InsetCommandMailer::params2string("label", p);
1264
1265                 if (cmd.argument().empty()) {
1266                         bv->showDialog("label", data);
1267                 } else {
1268                         FuncRequest fr(LFUN_INSET_INSERT, data);
1269                         dispatch(cur, fr);
1270                 }
1271                 break;
1272         }
1273
1274         case LFUN_INFO_INSERT: {
1275                 Inset * inset = createInset(cur.bv().buffer(), cmd);
1276                 if (!inset)
1277                         break;
1278                 // if an empty inset is created (cmd.argument() is empty)
1279                 // use current selection as parameter.
1280                 if (cmd.argument().empty() && cur.selection()) {
1281                         // use selected text as info to avoid a separate UI
1282                         docstring ds = cur.selectionAsString(false);
1283                         cutSelection(cur, true, false);
1284                         static_cast<InsetInfo *>(inset)->setInfo(to_utf8(ds));
1285                         static_cast<InsetInfo *>(inset)->updateInfo(cur.bv().buffer());
1286                 }
1287                 insertInset(cur, inset);
1288                 cur.posForward();
1289                 break;
1290         }
1291 #if 0
1292         case LFUN_LIST_INSERT:
1293         case LFUN_THEOREM_INSERT:
1294 #endif
1295         case LFUN_CAPTION_INSERT:
1296         case LFUN_FOOTNOTE_INSERT:
1297                 // Open the inset, and move the current selection
1298                 // inside it.
1299                 doInsertInset(cur, this, cmd, true, true);
1300                 cur.posForward();
1301                 // These insets are numbered.
1302                 updateLabels(bv->buffer());
1303                 break;
1304         case LFUN_NOTE_INSERT:
1305         case LFUN_FLEX_INSERT:
1306         case LFUN_BOX_INSERT:
1307         case LFUN_BRANCH_INSERT:
1308         case LFUN_BIBITEM_INSERT:
1309         case LFUN_ERT_INSERT:
1310         case LFUN_LISTING_INSERT:
1311         case LFUN_MARGINALNOTE_INSERT:
1312         case LFUN_OPTIONAL_INSERT:
1313         case LFUN_ENVIRONMENT_INSERT:
1314                 // Open the inset, and move the current selection
1315                 // inside it.
1316                 doInsertInset(cur, this, cmd, true, true);
1317                 cur.posForward();
1318                 break;
1319
1320         case LFUN_TABULAR_INSERT:
1321                 // if there were no arguments, just open the dialog
1322                 if (doInsertInset(cur, this, cmd, false, true))
1323                         cur.posForward();
1324                 else
1325                         bv->showDialog("tabularcreate");
1326
1327                 break;
1328
1329         case LFUN_FLOAT_INSERT:
1330         case LFUN_FLOAT_WIDE_INSERT:
1331         case LFUN_WRAP_INSERT: {
1332                 bool content = cur.selection();  // will some text be moved into the inset?
1333
1334                 doInsertInset(cur, this, cmd, true, true);
1335                 cur.posForward();
1336                 ParagraphList & pars = cur.text()->paragraphs();
1337
1338                 TextClass const & tclass = bv->buffer().params().getTextClass();
1339
1340                 // add a separate paragraph for the caption inset
1341                 pars.push_back(Paragraph());
1342                 pars.back().setInsetOwner(pars[0].inInset());
1343                 pars.back().layout(tclass.defaultLayout());
1344
1345                 int cap_pit = pars.size() - 1;
1346
1347                 // if an empty inset was created, we create an additional empty
1348                 // paragraph at the bottom so that the user can choose where to put
1349                 // the graphics (or table).
1350                 if (!content) {
1351                         pars.push_back(Paragraph());
1352                         pars.back().setInsetOwner(pars[0].inInset());
1353                         pars.back().layout(tclass.defaultLayout());
1354
1355                 }
1356
1357                 // reposition the cursor to the caption
1358                 cur.pit() = cap_pit;
1359                 cur.pos() = 0;
1360                 // FIXME: This Text/Cursor dispatch handling is a mess!
1361                 // We cannot use Cursor::dispatch here it needs access to up to
1362                 // date metrics.
1363                 FuncRequest cmd_caption(LFUN_CAPTION_INSERT);
1364                 cur.text()->dispatch(cur, cmd_caption);
1365                 cur.updateFlags(Update::Force);
1366                 // FIXME: When leaving the Float (or Wrap) inset we should
1367                 // delete any empty paragraph left above or below the
1368                 // caption.
1369                 break;
1370         }
1371
1372         case LFUN_INDEX_INSERT:
1373                 doInsertInset(cur, this, cmd, true, true);
1374                 cur.posForward();
1375                 break;
1376
1377         case LFUN_NOMENCL_INSERT: {
1378                 FuncRequest cmd1 = cmd;
1379                 if (cmd.argument().empty())
1380                         cmd1 = FuncRequest(cmd,
1381                                 bv->cursor().innerText()->getStringToIndex(bv->cursor()));
1382                 Inset * inset = createInset(cur.bv().buffer(), cmd1);
1383                 if (!inset)
1384                         break;
1385                 cur.recordUndo();
1386                 cur.clearSelection();
1387                 insertInset(cur, inset);
1388                 // Show the dialog for the nomenclature entry, since the
1389                 // description entry still needs to be filled in.
1390                 if (cmd.action == LFUN_NOMENCL_INSERT)
1391                         inset->edit(cur, true);
1392                 cur.posForward();
1393                 break;
1394         }
1395
1396         case LFUN_INDEX_PRINT:
1397         case LFUN_NOMENCL_PRINT:
1398         case LFUN_TOC_INSERT:
1399         case LFUN_HFILL_INSERT:
1400         case LFUN_LINE_INSERT:
1401         case LFUN_NEWPAGE_INSERT:
1402         case LFUN_PAGEBREAK_INSERT:
1403         case LFUN_CLEARPAGE_INSERT:
1404         case LFUN_CLEARDOUBLEPAGE_INSERT:
1405                 // do nothing fancy
1406                 doInsertInset(cur, this, cmd, false, false);
1407                 cur.posForward();
1408                 break;
1409
1410         case LFUN_DEPTH_DECREMENT:
1411                 changeDepth(cur, DEC_DEPTH);
1412                 break;
1413
1414         case LFUN_DEPTH_INCREMENT:
1415                 changeDepth(cur, INC_DEPTH);
1416                 break;
1417
1418         case LFUN_MATH_DISPLAY:
1419                 mathDispatch(cur, cmd, true);
1420                 break;
1421
1422         case LFUN_MATH_IMPORT_SELECTION:
1423         case LFUN_MATH_MODE:
1424                 if (cmd.argument() == "on")
1425                         // don't pass "on" as argument
1426                         mathDispatch(cur, FuncRequest(LFUN_MATH_MODE), false);
1427                 else
1428                         mathDispatch(cur, cmd, false);
1429                 break;
1430
1431         case LFUN_MATH_MACRO:
1432                 if (cmd.argument().empty())
1433                         cur.errorMessage(from_utf8(N_("Missing argument")));
1434                 else {
1435                         string s = to_utf8(cmd.argument());
1436                         string const s1 = token(s, ' ', 1);
1437                         int const nargs = s1.empty() ? 0 : convert<int>(s1);
1438                         string const s2 = token(s, ' ', 2);
1439                         MacroType type = MacroTypeNewcommand;
1440                         if (s2 == "def")
1441                                 type = MacroTypeDef;
1442                         cur.insert(new MathMacroTemplate(from_utf8(token(s, ' ', 0)), nargs, false, type));
1443                         //cur.nextInset()->edit(cur, true);
1444                 }
1445                 break;
1446
1447         // passthrough hat and underscore outside mathed:
1448         case LFUN_MATH_SUBSCRIPT:
1449                 mathDispatch(cur, FuncRequest(LFUN_SELF_INSERT, "_"), false);
1450                 break;
1451         case LFUN_MATH_SUPERSCRIPT:
1452                 mathDispatch(cur, FuncRequest(LFUN_SELF_INSERT, "^"), false);
1453                 break;
1454
1455         case LFUN_MATH_INSERT:
1456         case LFUN_MATH_MATRIX:
1457         case LFUN_MATH_DELIM:
1458         case LFUN_MATH_BIGDELIM: {
1459                 cap::replaceSelection(cur);
1460                 cur.insert(new InsetMathHull(hullSimple));
1461                 checkAndActivateInset(cur, true);
1462                 BOOST_ASSERT(cur.inMathed());
1463                 cur.dispatch(cmd);
1464                 break;
1465         }
1466
1467         case LFUN_FONT_EMPH: {
1468                 Font font(ignore_font, ignore_language);
1469                 font.fontInfo().setEmph(FONT_TOGGLE);
1470                 toggleAndShow(cur, this, font);
1471                 break;
1472         }
1473
1474         case LFUN_FONT_BOLD: {
1475                 Font font(ignore_font, ignore_language);
1476                 font.fontInfo().setSeries(BOLD_SERIES);
1477                 toggleAndShow(cur, this, font);
1478                 break;
1479         }
1480
1481         case LFUN_FONT_NOUN: {
1482                 Font font(ignore_font, ignore_language);
1483                 font.fontInfo().setNoun(FONT_TOGGLE);
1484                 toggleAndShow(cur, this, font);
1485                 break;
1486         }
1487
1488         case LFUN_FONT_TYPEWRITER: {
1489                 Font font(ignore_font, ignore_language);
1490                 font.fontInfo().setFamily(TYPEWRITER_FAMILY); // no good
1491                 toggleAndShow(cur, this, font);
1492                 break;
1493         }
1494
1495         case LFUN_FONT_SANS: {
1496                 Font font(ignore_font, ignore_language);
1497                 font.fontInfo().setFamily(SANS_FAMILY);
1498                 toggleAndShow(cur, this, font);
1499                 break;
1500         }
1501
1502         case LFUN_FONT_ROMAN: {
1503                 Font font(ignore_font, ignore_language);
1504                 font.fontInfo().setFamily(ROMAN_FAMILY);
1505                 toggleAndShow(cur, this, font);
1506                 break;
1507         }
1508
1509         case LFUN_FONT_DEFAULT: {
1510                 Font font(inherit_font, ignore_language);
1511                 toggleAndShow(cur, this, font);
1512                 break;
1513         }
1514
1515         case LFUN_FONT_UNDERLINE: {
1516                 Font font(ignore_font, ignore_language);
1517                 font.fontInfo().setUnderbar(FONT_TOGGLE);
1518                 toggleAndShow(cur, this, font);
1519                 break;
1520         }
1521
1522         case LFUN_FONT_SIZE: {
1523                 Font font(ignore_font, ignore_language);
1524                 setLyXSize(to_utf8(cmd.argument()), font.fontInfo());
1525                 toggleAndShow(cur, this, font);
1526                 break;
1527         }
1528
1529         case LFUN_LANGUAGE: {
1530                 Language const * lang = languages.getLanguage(to_utf8(cmd.argument()));
1531                 if (!lang)
1532                         break;
1533                 Font font(ignore_font, lang);
1534                 toggleAndShow(cur, this, font);
1535                 break;
1536         }
1537
1538         case LFUN_FONT_FREE_APPLY:
1539                 toggleAndShow(cur, this, freefont, toggleall);
1540                 cur.message(_("Character set"));
1541                 break;
1542
1543         // Set the freefont using the contents of \param data dispatched from
1544         // the frontends and apply it at the current cursor location.
1545         case LFUN_FONT_FREE_UPDATE: {
1546                 Font font;
1547                 bool toggle;
1548                 if (font.fromString(to_utf8(cmd.argument()), toggle)) {
1549                         freefont = font;
1550                         toggleall = toggle;
1551                         toggleAndShow(cur, this, freefont, toggleall);
1552                         cur.message(_("Character set"));
1553                 } else {
1554                         lyxerr << "Argument not ok";
1555                 }
1556                 break;
1557         }
1558
1559         case LFUN_FINISHED_LEFT:
1560                 LYXERR(Debug::DEBUG, "handle LFUN_FINISHED_LEFT:\n" << cur);
1561                 if (reverseDirectionNeeded(cur)) {
1562                         ++cur.pos();
1563                         cur.setCurrentFont();
1564                 }
1565                 break;
1566
1567         case LFUN_FINISHED_RIGHT:
1568                 LYXERR(Debug::DEBUG, "handle LFUN_FINISHED_RIGHT:\n" << cur);
1569                 if (!reverseDirectionNeeded(cur)) {
1570                         ++cur.pos();
1571                         cur.setCurrentFont();
1572                 }
1573                 break;
1574
1575         case LFUN_FINISHED_BACKWARD:
1576                 LYXERR(Debug::DEBUG, "handle LFUN_FINISHED_BACKWARD:\n" << cur);
1577                 break;
1578
1579         case LFUN_FINISHED_FORWARD:
1580                 LYXERR(Debug::DEBUG, "handle LFUN_FINISHED_FORWARD:\n" << cur);
1581                 ++cur.pos();
1582                 cur.setCurrentFont();
1583                 break;
1584
1585         case LFUN_LAYOUT_PARAGRAPH: {
1586                 string data;
1587                 params2string(cur.paragraph(), data);
1588                 data = "show\n" + data;
1589                 bv->showDialog("paragraph", data);
1590                 break;
1591         }
1592
1593         case LFUN_PARAGRAPH_UPDATE: {
1594                 string data;
1595                 params2string(cur.paragraph(), data);
1596
1597                 // Will the paragraph accept changes from the dialog?
1598                 bool const accept = !cur.inset().forceDefaultParagraphs(cur.idx());
1599
1600                 data = "update " + convert<string>(accept) + '\n' + data;
1601                 bv->updateDialog("paragraph", data);
1602                 break;
1603         }
1604
1605         case LFUN_ACCENT_UMLAUT:
1606         case LFUN_ACCENT_CIRCUMFLEX:
1607         case LFUN_ACCENT_GRAVE:
1608         case LFUN_ACCENT_ACUTE:
1609         case LFUN_ACCENT_TILDE:
1610         case LFUN_ACCENT_CEDILLA:
1611         case LFUN_ACCENT_MACRON:
1612         case LFUN_ACCENT_DOT:
1613         case LFUN_ACCENT_UNDERDOT:
1614         case LFUN_ACCENT_UNDERBAR:
1615         case LFUN_ACCENT_CARON:
1616         case LFUN_ACCENT_SPECIAL_CARON:
1617         case LFUN_ACCENT_BREVE:
1618         case LFUN_ACCENT_TIE:
1619         case LFUN_ACCENT_HUNGARIAN_UMLAUT:
1620         case LFUN_ACCENT_CIRCLE:
1621         case LFUN_ACCENT_OGONEK:
1622                 theLyXFunc().handleKeyFunc(cmd.action);
1623                 if (!cmd.argument().empty())
1624                         // FIXME: Are all these characters encoded in one byte in utf8?
1625                         bv->translateAndInsert(cmd.argument()[0], this, cur);
1626                 break;
1627
1628         case LFUN_FLOAT_LIST: {
1629                 TextClass const & tclass = bv->buffer().params().getTextClass();
1630                 if (tclass.floats().typeExist(to_utf8(cmd.argument()))) {
1631                         cur.recordUndo();
1632                         if (cur.selection())
1633                                 cutSelection(cur, true, false);
1634                         breakParagraph(cur);
1635
1636                         if (cur.lastpos() != 0) {
1637                                 cursorBackward(cur);
1638                                 breakParagraph(cur);
1639                         }
1640
1641                         setLayout(cur, tclass.defaultLayoutName());
1642                         ParagraphParameters p;
1643                         setParagraphs(cur, p);
1644                         insertInset(cur, new InsetFloatList(to_utf8(cmd.argument())));
1645                         cur.posForward();
1646                 } else {
1647                         lyxerr << "Non-existent float type: "
1648                                << to_utf8(cmd.argument()) << endl;
1649                 }
1650                 break;
1651         }
1652
1653         case LFUN_CHANGE_ACCEPT: {
1654                 acceptOrRejectChanges(cur, ACCEPT);
1655                 break;
1656         }
1657
1658         case LFUN_CHANGE_REJECT: {
1659                 acceptOrRejectChanges(cur, REJECT);
1660                 break;
1661         }
1662
1663         case LFUN_THESAURUS_ENTRY: {
1664                 docstring arg = cmd.argument();
1665                 if (arg.empty()) {
1666                         arg = cur.selectionAsString(false);
1667                         // FIXME
1668                         if (arg.size() > 100 || arg.empty()) {
1669                                 // Get word or selection
1670                                 selectWordWhenUnderCursor(cur, WHOLE_WORD);
1671                                 arg = cur.selectionAsString(false);
1672                         }
1673                 }
1674                 bv->showDialog("thesaurus", to_utf8(arg));
1675                 break;
1676         }
1677
1678         case LFUN_PARAGRAPH_PARAMS_APPLY: {
1679                 // Given data, an encoding of the ParagraphParameters
1680                 // generated in the Paragraph dialog, this function sets
1681                 // the current paragraph, or currently selected paragraphs,
1682                 // appropriately.
1683                 // NOTE: This function overrides all existing settings.
1684                 setParagraphs(cur, cmd.argument());
1685                 cur.message(_("Paragraph layout set"));
1686                 break;
1687         }
1688
1689         case LFUN_PARAGRAPH_PARAMS: {
1690                 // Given data, an encoding of the ParagraphParameters as we'd
1691                 // find them in a LyX file, this function modifies the current paragraph,
1692                 // or currently selected paragraphs.
1693                 // NOTE: This function only modifies, and does not override, existing
1694                 // settings.
1695                 setParagraphs(cur, cmd.argument(), true);
1696                 cur.message(_("Paragraph layout set"));
1697                 break;
1698         }
1699
1700         case LFUN_ESCAPE:
1701                 if (cur.selection()) {
1702                         cur.selection() = false;
1703                 } else {
1704                         cur.undispatched();
1705                         // This used to be LFUN_FINISHED_RIGHT, I think FORWARD is more
1706                         // correct, but I'm not 100% sure -- dov, 071019
1707                         cmd = FuncRequest(LFUN_FINISHED_FORWARD);
1708                 }
1709                 break;
1710
1711         case LFUN_OUTLINE_UP:
1712                 outline(OutlineUp, cur);
1713                 setCursor(cur, cur.pit(), 0);
1714                 updateLabels(cur.buffer());
1715                 needsUpdate = true;
1716                 break;
1717
1718         case LFUN_OUTLINE_DOWN:
1719                 outline(OutlineDown, cur);
1720                 setCursor(cur, cur.pit(), 0);
1721                 updateLabels(cur.buffer());
1722                 needsUpdate = true;
1723                 break;
1724
1725         case LFUN_OUTLINE_IN:
1726                 outline(OutlineIn, cur);
1727                 updateLabels(cur.buffer());
1728                 needsUpdate = true;
1729                 break;
1730
1731         case LFUN_OUTLINE_OUT:
1732                 outline(OutlineOut, cur);
1733                 updateLabels(cur.buffer());
1734                 needsUpdate = true;
1735                 break;
1736
1737         default:
1738                 LYXERR(Debug::ACTION, "Command " << cmd << " not DISPATCHED by Text");
1739                 cur.undispatched();
1740                 break;
1741         }
1742
1743         needsUpdate |= (cur.pos() != cur.lastpos()) && cur.selection();
1744
1745         // FIXME: The cursor flag is reset two lines below
1746         // so we need to check here if some of the LFUN did touch that.
1747         // for now only Text::erase() and Text::backspace() do that.
1748         // The plan is to verify all the LFUNs and then to remove this
1749         // singleParUpdate boolean altogether.
1750         if (cur.result().update() & Update::Force) {
1751                 singleParUpdate = false;
1752                 needsUpdate = true;
1753         }
1754
1755         // FIXME: the following code should go in favor of fine grained
1756         // update flag treatment.
1757         if (singleParUpdate) {
1758                 // Inserting characters does not change par height
1759                 ParagraphMetrics const & pms
1760                         = cur.bv().parMetrics(cur.bottom().text(), cur.bottom().pit());
1761                 if (pms.dim().height() == olddim.height()) {
1762                         // if so, update _only_ this paragraph
1763                         cur.updateFlags(Update::SinglePar |
1764                                 Update::FitCursor);
1765                         return;
1766                 }
1767                 needsUpdate = true;
1768         }
1769
1770         if (!needsUpdate
1771             && &oldTopSlice.inset() == &cur.inset()
1772             && oldTopSlice.idx() == cur.idx()
1773             && !sel // sel is a backup of cur.selection() at the biginning of the function.
1774             && !cur.selection())
1775                 // FIXME: it would be better if we could just do this
1776                 //
1777                 //if (cur.result().update() != Update::FitCursor)
1778                 //      cur.noUpdate();
1779                 //
1780                 // But some LFUNs do not set Update::FitCursor when needed, so we
1781                 // do it for all. This is not very harmfull as FitCursor will provoke
1782                 // a full redraw only if needed but still, a proper review of all LFUN
1783                 // should be done and this needsUpdate boolean can then be removed.
1784                 cur.updateFlags(Update::FitCursor);
1785         else
1786                 cur.updateFlags(Update::Force | Update::FitCursor);
1787 }
1788
1789
1790 bool Text::getStatus(Cursor & cur, FuncRequest const & cmd,
1791                         FuncStatus & flag) const
1792 {
1793         BOOST_ASSERT(cur.text() == this);
1794
1795         Font const & font = cur.real_current_font;
1796         FontInfo const & fontinfo = font.fontInfo();
1797         bool enable = true;
1798         InsetCode code = NO_CODE;
1799
1800         switch (cmd.action) {
1801
1802         case LFUN_DEPTH_DECREMENT:
1803                 enable = changeDepthAllowed(cur, DEC_DEPTH);
1804                 break;
1805
1806         case LFUN_DEPTH_INCREMENT:
1807                 enable = changeDepthAllowed(cur, INC_DEPTH);
1808                 break;
1809
1810         case LFUN_APPENDIX:
1811                 flag.setOnOff(cur.paragraph().params().startOfAppendix());
1812                 return true;
1813
1814         case LFUN_BIBITEM_INSERT:
1815                 enable = (cur.paragraph().layout()->labeltype == LABEL_BIBLIO
1816                           && cur.pos() == 0);
1817                 break;
1818
1819         case LFUN_DIALOG_SHOW_NEW_INSET:
1820                 if (cmd.argument() == "bibitem")
1821                         code = BIBITEM_CODE;
1822                 else if (cmd.argument() == "bibtex")
1823                         code = BIBTEX_CODE;
1824                 else if (cmd.argument() == "box")
1825                         code = BOX_CODE;
1826                 else if (cmd.argument() == "branch")
1827                         code = BRANCH_CODE;
1828                 else if (cmd.argument() == "citation")
1829                         code = CITE_CODE;
1830                 else if (cmd.argument() == "ert")
1831                         code = ERT_CODE;
1832                 else if (cmd.argument() == "external")
1833                         code = EXTERNAL_CODE;
1834                 else if (cmd.argument() == "float")
1835                         code = FLOAT_CODE;
1836                 else if (cmd.argument() == "graphics")
1837                         code = GRAPHICS_CODE;
1838                 else if (cmd.argument() == "href")
1839                         code = HYPERLINK_CODE;
1840                 else if (cmd.argument() == "include")
1841                         code = INCLUDE_CODE;
1842                 else if (cmd.argument() == "index")
1843                         code = INDEX_CODE;
1844                 else if (cmd.argument() == "nomenclature")
1845                         code = NOMENCL_CODE;
1846                 else if (cmd.argument() == "label")
1847                         code = LABEL_CODE;
1848                 else if (cmd.argument() == "note")
1849                         code = NOTE_CODE;
1850                 else if (cmd.argument() == "ref")
1851                         code = REF_CODE;
1852                 else if (cmd.argument() == "toc")
1853                         code = TOC_CODE;
1854                 else if (cmd.argument() == "vspace")
1855                         code = VSPACE_CODE;
1856                 else if (cmd.argument() == "wrap")
1857                         code = WRAP_CODE;
1858                 else if (cmd.argument() == "listings")
1859                         code = LISTINGS_CODE;
1860                 break;
1861
1862         case LFUN_ERT_INSERT:
1863                 code = ERT_CODE;
1864                 break;
1865         case LFUN_LISTING_INSERT:
1866             code = LISTINGS_CODE;
1867                 break;
1868         case LFUN_FOOTNOTE_INSERT:
1869                 code = FOOT_CODE;
1870                 break;
1871         case LFUN_TABULAR_INSERT:
1872                 code = TABULAR_CODE;
1873                 break;
1874         case LFUN_MARGINALNOTE_INSERT:
1875                 code = MARGIN_CODE;
1876                 break;
1877         case LFUN_FLOAT_INSERT:
1878         case LFUN_FLOAT_WIDE_INSERT:
1879                 code = FLOAT_CODE;
1880                 break;
1881         case LFUN_WRAP_INSERT:
1882                 code = WRAP_CODE;
1883                 break;
1884         case LFUN_FLOAT_LIST:
1885                 code = FLOAT_LIST_CODE;
1886                 break;
1887 #if 0
1888         case LFUN_LIST_INSERT:
1889                 code = LIST_CODE;
1890                 break;
1891         case LFUN_THEOREM_INSERT:
1892                 code = THEOREM_CODE;
1893                 break;
1894 #endif
1895         case LFUN_CAPTION_INSERT:
1896                 code = CAPTION_CODE;
1897                 break;
1898         case LFUN_NOTE_INSERT:
1899                 code = NOTE_CODE;
1900                 break;
1901         case LFUN_FLEX_INSERT: {
1902                 code = FLEX_CODE;
1903                 string s = cmd.getArg(0);
1904                 InsetLayout il =  cur.buffer().params().getTextClass().insetlayout(from_utf8(s));
1905                 if (il.lyxtype != "charstyle" &&
1906                     il.lyxtype != "custom" &&
1907                     il.lyxtype != "element" &&
1908                     il.lyxtype != "standard")
1909                         enable = false;
1910                 break;
1911                 }
1912         case LFUN_BOX_INSERT:
1913                 code = BOX_CODE;
1914                 break;
1915         case LFUN_BRANCH_INSERT:
1916                 code = BRANCH_CODE;
1917                 if (cur.buffer().masterBuffer()->params().branchlist().empty())
1918                         enable = false;
1919                 break;
1920         case LFUN_LABEL_INSERT:
1921                 code = LABEL_CODE;
1922                 break;
1923         case LFUN_INFO_INSERT:
1924                 code = INFO_CODE;
1925                 break;
1926         case LFUN_OPTIONAL_INSERT:
1927                 code = OPTARG_CODE;
1928                 enable = cur.paragraph().insetList().count(OPTARG_CODE)
1929                         < cur.paragraph().layout()->optionalargs;
1930                 break;
1931         case LFUN_ENVIRONMENT_INSERT:
1932                 code = BOX_CODE;
1933                 break;
1934         case LFUN_INDEX_INSERT:
1935                 code = INDEX_CODE;
1936                 break;
1937         case LFUN_INDEX_PRINT:
1938                 code = INDEX_PRINT_CODE;
1939                 break;
1940         case LFUN_NOMENCL_INSERT:
1941                 code = NOMENCL_CODE;
1942                 break;
1943         case LFUN_NOMENCL_PRINT:
1944                 code = NOMENCL_PRINT_CODE;
1945                 break;
1946         case LFUN_TOC_INSERT:
1947                 code = TOC_CODE;
1948                 break;
1949         case LFUN_HYPERLINK_INSERT:
1950                 code = HYPERLINK_CODE;
1951                 break;
1952         case LFUN_QUOTE_INSERT:
1953                 // always allow this, since we will inset a raw quote
1954                 // if an inset is not allowed.
1955                 break;
1956         case LFUN_HFILL_INSERT:
1957         case LFUN_SPECIALCHAR_INSERT:
1958                 code = SPECIALCHAR_CODE;
1959                 break;
1960         case LFUN_SPACE_INSERT:
1961                 // slight hack: we know this is allowed in math mode
1962                 if (cur.inTexted())
1963                         code = SPACE_CODE;
1964                 break;
1965
1966         case LFUN_INSET_MODIFY:
1967                 // We need to disable this, because we may get called for a
1968                 // tabular cell via
1969                 // InsetTabular::getStatus() -> InsetText::getStatus()
1970                 // and we don't handle LFUN_INSET_MODIFY.
1971                 enable = false;
1972                 break;
1973
1974         case LFUN_FONT_EMPH:
1975                 flag.setOnOff(fontinfo.emph() == FONT_ON);
1976                 return true;
1977
1978         case LFUN_FONT_NOUN:
1979                 flag.setOnOff(fontinfo.noun() == FONT_ON);
1980                 return true;
1981
1982         case LFUN_FONT_BOLD:
1983                 flag.setOnOff(fontinfo.series() == BOLD_SERIES);
1984                 return true;
1985
1986         case LFUN_FONT_SANS:
1987                 flag.setOnOff(fontinfo.family() == SANS_FAMILY);
1988                 return true;
1989
1990         case LFUN_FONT_ROMAN:
1991                 flag.setOnOff(fontinfo.family() == ROMAN_FAMILY);
1992                 return true;
1993
1994         case LFUN_FONT_TYPEWRITER:
1995                 flag.setOnOff(fontinfo.family() == TYPEWRITER_FAMILY);
1996                 return true;
1997
1998         case LFUN_CUT:
1999         case LFUN_COPY:
2000                 enable = cur.selection();
2001                 break;
2002
2003         case LFUN_PASTE:
2004                 if (cmd.argument().empty()) {
2005                         if (theClipboard().isInternal())
2006                                 enable = cap::numberOfSelections() > 0;
2007                         else
2008                                 enable = !theClipboard().empty();
2009                 } else {
2010                         string const arg = to_utf8(cmd.argument());
2011                         if (isStrUnsignedInt(arg)) {
2012                                 unsigned int n = convert<unsigned int>(arg);
2013                                 enable = cap::numberOfSelections() > n;
2014                         } else
2015                                 // unknown argument
2016                                 enable = false;
2017                 }
2018                 break;
2019
2020         case LFUN_CLIPBOARD_PASTE:
2021                 enable = !theClipboard().empty();
2022                 break;
2023
2024         case LFUN_PRIMARY_SELECTION_PASTE:
2025                 enable = cur.selection() || !theSelection().empty();
2026                 break;
2027
2028         case LFUN_PARAGRAPH_MOVE_UP:
2029                 enable = cur.pit() > 0 && !cur.selection();
2030                 break;
2031
2032         case LFUN_PARAGRAPH_MOVE_DOWN:
2033                 enable = cur.pit() < cur.lastpit() && !cur.selection();
2034                 break;
2035
2036         case LFUN_INSET_DISSOLVE:
2037                 if (!cmd.argument().empty()) {
2038                         InsetLayout il = cur.inset().getLayout(cur.buffer().params());
2039                         enable = cur.inset().lyxCode() == FLEX_CODE
2040                                  && il.lyxtype == to_utf8(cmd.argument());
2041                 } else {
2042                         enable = !isMainText(cur.bv().buffer())
2043                                  && cur.inset().nargs() == 1;
2044                 }
2045                 break;
2046
2047         case LFUN_CHANGE_ACCEPT:
2048         case LFUN_CHANGE_REJECT:
2049                 // TODO: context-sensitive enabling of LFUN_CHANGE_ACCEPT/REJECT
2050                 // In principle, these LFUNs should only be enabled if there
2051                 // is a change at the current position/in the current selection.
2052                 // However, without proper optimizations, this will inevitably
2053                 // result in unacceptable performance - just imagine a user who
2054                 // wants to select the complete content of a long document.
2055                 enable = true;
2056                 break;
2057
2058         case LFUN_OUTLINE_UP:
2059         case LFUN_OUTLINE_DOWN:
2060         case LFUN_OUTLINE_IN:
2061         case LFUN_OUTLINE_OUT:
2062                 enable = (cur.paragraph().layout()->toclevel != Layout::NOT_IN_TOC);
2063                 break;
2064
2065         case LFUN_WORD_DELETE_FORWARD:
2066         case LFUN_WORD_DELETE_BACKWARD:
2067         case LFUN_LINE_DELETE:
2068         case LFUN_WORD_FORWARD:
2069         case LFUN_WORD_BACKWARD:
2070         case LFUN_WORD_RIGHT:
2071         case LFUN_WORD_LEFT:
2072         case LFUN_CHAR_FORWARD:
2073         case LFUN_CHAR_FORWARD_SELECT:
2074         case LFUN_CHAR_BACKWARD:
2075         case LFUN_CHAR_BACKWARD_SELECT:
2076         case LFUN_CHAR_LEFT:
2077         case LFUN_CHAR_LEFT_SELECT:
2078         case LFUN_CHAR_RIGHT:
2079         case LFUN_CHAR_RIGHT_SELECT:
2080         case LFUN_UP:
2081         case LFUN_UP_SELECT:
2082         case LFUN_DOWN:
2083         case LFUN_DOWN_SELECT:
2084         case LFUN_PARAGRAPH_UP_SELECT:
2085         case LFUN_PARAGRAPH_DOWN_SELECT:
2086         case LFUN_SCREEN_UP_SELECT:
2087         case LFUN_SCREEN_DOWN_SELECT:
2088         case LFUN_LINE_BEGIN_SELECT:
2089         case LFUN_LINE_END_SELECT:
2090         case LFUN_WORD_FORWARD_SELECT:
2091         case LFUN_WORD_BACKWARD_SELECT:
2092         case LFUN_WORD_RIGHT_SELECT:
2093         case LFUN_WORD_LEFT_SELECT:
2094         case LFUN_WORD_SELECT:
2095         case LFUN_PARAGRAPH_UP:
2096         case LFUN_PARAGRAPH_DOWN:
2097         case LFUN_LINE_BEGIN:
2098         case LFUN_LINE_BREAK:
2099         case LFUN_LINE_END:
2100         case LFUN_NEW_LINE:
2101         case LFUN_CHAR_DELETE_FORWARD:
2102         case LFUN_DELETE_FORWARD_SKIP:
2103         case LFUN_CHAR_DELETE_BACKWARD:
2104         case LFUN_DELETE_BACKWARD_SKIP:
2105         case LFUN_BREAK_PARAGRAPH:
2106         case LFUN_BREAK_PARAGRAPH_SKIP:
2107         case LFUN_PARAGRAPH_SPACING:
2108         case LFUN_INSET_INSERT:
2109         case LFUN_WORD_UPCASE:
2110         case LFUN_WORD_LOWCASE:
2111         case LFUN_WORD_CAPITALIZE:
2112         case LFUN_CHARS_TRANSPOSE:
2113         case LFUN_SERVER_GET_XY:
2114         case LFUN_SERVER_SET_XY:
2115         case LFUN_SERVER_GET_FONT:
2116         case LFUN_SERVER_GET_LAYOUT:
2117         case LFUN_LAYOUT:
2118         case LFUN_DATE_INSERT:
2119         case LFUN_SELF_INSERT:
2120         case LFUN_LINE_INSERT:
2121         case LFUN_NEWPAGE_INSERT:
2122         case LFUN_PAGEBREAK_INSERT:
2123         case LFUN_CLEARPAGE_INSERT:
2124         case LFUN_CLEARDOUBLEPAGE_INSERT:
2125         case LFUN_MATH_DISPLAY:
2126         case LFUN_MATH_IMPORT_SELECTION:
2127         case LFUN_MATH_MODE:
2128         case LFUN_MATH_MACRO:
2129         case LFUN_MATH_MATRIX:
2130         case LFUN_MATH_DELIM:
2131         case LFUN_MATH_BIGDELIM:
2132         case LFUN_MATH_INSERT:
2133         case LFUN_MATH_SUBSCRIPT:
2134         case LFUN_MATH_SUPERSCRIPT:
2135         case LFUN_FONT_DEFAULT:
2136         case LFUN_FONT_UNDERLINE:
2137         case LFUN_FONT_SIZE:
2138         case LFUN_LANGUAGE:
2139         case LFUN_FONT_FREE_APPLY:
2140         case LFUN_FONT_FREE_UPDATE:
2141         case LFUN_LAYOUT_PARAGRAPH:
2142         case LFUN_PARAGRAPH_UPDATE:
2143         case LFUN_ACCENT_UMLAUT:
2144         case LFUN_ACCENT_CIRCUMFLEX:
2145         case LFUN_ACCENT_GRAVE:
2146         case LFUN_ACCENT_ACUTE:
2147         case LFUN_ACCENT_TILDE:
2148         case LFUN_ACCENT_CEDILLA:
2149         case LFUN_ACCENT_MACRON:
2150         case LFUN_ACCENT_DOT:
2151         case LFUN_ACCENT_UNDERDOT:
2152         case LFUN_ACCENT_UNDERBAR:
2153         case LFUN_ACCENT_CARON:
2154         case LFUN_ACCENT_SPECIAL_CARON:
2155         case LFUN_ACCENT_BREVE:
2156         case LFUN_ACCENT_TIE:
2157         case LFUN_ACCENT_HUNGARIAN_UMLAUT:
2158         case LFUN_ACCENT_CIRCLE:
2159         case LFUN_ACCENT_OGONEK:
2160         case LFUN_THESAURUS_ENTRY:
2161         case LFUN_PARAGRAPH_PARAMS_APPLY:
2162         case LFUN_PARAGRAPH_PARAMS:
2163         case LFUN_ESCAPE:
2164         case LFUN_BUFFER_END:
2165         case LFUN_BUFFER_BEGIN:
2166         case LFUN_BUFFER_BEGIN_SELECT:
2167         case LFUN_BUFFER_END_SELECT:
2168         case LFUN_UNICODE_INSERT:
2169                 // these are handled in our dispatch()
2170                 enable = true;
2171                 break;
2172
2173         default:
2174                 return false;
2175         }
2176
2177         if (code != NO_CODE
2178             && (cur.empty() || !cur.inset().insetAllowed(code)))
2179                 enable = false;
2180
2181         flag.enabled(enable);
2182         return true;
2183 }
2184
2185
2186 void Text::pasteString(Cursor & cur, docstring const & clip,
2187                 bool asParagraphs)
2188 {
2189         cur.clearSelection();
2190         if (!clip.empty()) {
2191                 cur.recordUndo();
2192                 if (asParagraphs)
2193                         insertStringAsParagraphs(cur, clip);
2194                 else
2195                         insertStringAsLines(cur, clip);
2196         }
2197 }
2198
2199 } // namespace lyx