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 "DispatchResult.h"
  31 #include "ErrorList.h"
  32 #include "factory.h"
  33 #include "FuncRequest.h"
  34 #include "InsetList.h"
  35 #include "Intl.h"
  36 #include "Language.h"
  37 #include "Layout.h"
  38 #include "LyXAction.h"
  39 #include "LyXFunc.h"
  40 #include "Lexer.h"
  41 #include "LyXRC.h"
  42 #include "Paragraph.h"
  43 #include "paragraph_funcs.h"
  44 #include "ParagraphParameters.h"
  45 #include "TextClass.h"
  46 #include "TextMetrics.h"
  47 #include "VSpace.h"
  48
  49 #include "frontends/Clipboard.h"
  50 #include "frontends/Selection.h"
  51
  52 #include "insets/InsetCollapsable.h"
  53 #include "insets/InsetCommand.h"
  54 #include "insets/InsetFloatList.h"
  55 #include "insets/InsetNewline.h"
  56 #include "insets/InsetQuotes.h"
  57 #include "insets/InsetSpecialChar.h"
  58 #include "insets/InsetText.h"
  59 #include "insets/InsetInfo.h"
  60
  61 #include "support/convert.h"
  62 #include "support/debug.h"
  63 #include "support/gettext.h"
  64 #include "support/lstrings.h"
  65 #include "support/lyxtime.h"
  66
  67 #include "mathed/InsetMathHull.h"
  68 #include "mathed/MathMacroTemplate.h"
  69
  70 #include <boost/next_prior.hpp>
  71
  72 #include <clocale>
  73 #include <sstream>
  74
  75 using namespace std;
  76 using namespace lyx::support;
  77
  78 namespace lyx {
  79
  80 using cap::copySelection;
  81 using cap::cutSelection;
  82 using cap::pasteFromStack;
  83 using cap::pasteClipboardText;
  84 using cap::pasteClipboardGraphics;
  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(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         Buffer & buffer = cur.bv().buffer();
 186         BufferParams const & bparams = buffer.params();
 187         Inset * inset = createInset(buffer, cmd);
 188         if (!inset)
 189                 return false;
 190
 191         if (InsetCollapsable * ci = inset->asInsetCollapsable())
 192                 ci->setLayout(bparams);
 193
 194         cur.recordUndo();
 195         if (cmd.action == LFUN_INDEX_INSERT) {
 196                 docstring ds = subst(text->getStringToIndex(cur), '\n', ' ');
 197                 text->insertInset(cur, inset);
 198                 if (edit)
 199                         inset->edit(cur, true);
 200                 // Now put this into inset
 201                 static_cast<InsetCollapsable *>(inset)->text_.insertStringAsParagraphs(cur, ds);
 202                 return true;
 203         }
 204
 205         bool gotsel = false;
 206         if (cur.selection()) {
 207                 lyx::dispatch(FuncRequest(LFUN_CUT));
 208                 gotsel = true;
 209         }
 210         text->insertInset(cur, inset);
 211
 212         if (edit)
 213                 inset->edit(cur, true);
 214
 215         if (!gotsel || !pastesel)
 216                 return true;
 217
 218         lyx::dispatch(FuncRequest(LFUN_PASTE, "0"));
 219         InsetText * insetText = dynamic_cast<InsetText *>(inset);
 220         if (insetText && !insetText->allowMultiPar() || cur.lastpit() == 0) {
 221                 // reset first par to default
 222                 cur.text()->paragraphs().begin()
 223                         ->setEmptyOrDefaultLayout(bparams.textClass());
 224                 cur.pos() = 0;
 225                 cur.pit() = 0;
 226                 // Merge multiple paragraphs -- hack
 227                 while (cur.lastpit() > 0)
 228                         mergeParagraph(bparams, cur.text()->paragraphs(), 0);
 229         } else {
 230                 // reset surrounding par to default
 231                 docstring const layoutname = insetText->useEmptyLayout()
 232                         ? bparams.textClass().emptyLayoutName()
 233                         : bparams.textClass().defaultLayoutName();
 234                 cur.leaveInset(*inset);
 235                 text->setLayout(cur, layoutname);
 236         }
 237
 238         return true;
 239 }
 240
 241
 242 string const freefont2string()
 243 {
 244         return freefont.toString(toggleall);
 245 }
 246
 247
 248 /// the type of outline operation
 249 enum OutlineOp {
 250         OutlineUp, // Move this header with text down
 251         OutlineDown,   // Move this header with text up
 252         OutlineIn, // Make this header deeper
 253         OutlineOut // Make this header shallower
 254 };
 255
 256
 257 static void outline(OutlineOp mode, Cursor & cur)
 258 {
 259         Buffer & buf = cur.buffer();
 260         pit_type & pit = cur.pit();
 261         ParagraphList & pars = buf.text().paragraphs();
 262         ParagraphList::iterator bgn = pars.begin();
 263         // The first paragraph of the area to be copied:
 264         ParagraphList::iterator start = boost::next(bgn, pit);
 265         // The final paragraph of area to be copied:
 266         ParagraphList::iterator finish = start;
 267         ParagraphList::iterator end = pars.end();
 268
 269         TextClass const & tc = buf.params().textClass();
 270
 271         int const thistoclevel = start->layout()->toclevel;
 272         int toclevel;
 273         switch (mode) {
 274                 case OutlineUp: {
 275                         // Move out (down) from this section header
 276                         if (finish != end)
 277                                 ++finish;
 278                         // Seek the one (on same level) below
 279                         for (; finish != end; ++finish) {
 280                                 toclevel = finish->layout()->toclevel;
 281                                 if (toclevel != Layout::NOT_IN_TOC
 282                                     && toclevel <= thistoclevel) {
 283                                         break;
 284                                 }
 285                         }
 286                         ParagraphList::iterator dest = start;
 287                         // Move out (up) from this header
 288                         if (dest == bgn)
 289                                 break;
 290                         // Search previous same-level header above
 291                         do {
 292                                 --dest;
 293                                 toclevel = dest->layout()->toclevel;
 294                         } while(dest != bgn
 295                                 && (toclevel == Layout::NOT_IN_TOC
 296                                     || toclevel > thistoclevel));
 297                         // Not found; do nothing
 298                         if (toclevel == Layout::NOT_IN_TOC || toclevel > thistoclevel)
 299                                 break;
 300                         pit_type const newpit = distance(bgn, dest);
 301                         pit_type const len = distance(start, finish);
 302                         pit_type const deletepit = pit + len;
 303                         buf.undo().recordUndo(cur, ATOMIC_UNDO, newpit, deletepit - 1);
 304                         pars.insert(dest, start, finish);
 305                         start = boost::next(pars.begin(), deletepit);
 306                         pit = newpit;
 307                         pars.erase(start, finish);
 308                         break;
 309                 }
 310                 case OutlineDown: {
 311                         // Go down out of current header:
 312                         if (finish != end)
 313                                 ++finish;
 314                         // Find next same-level header:
 315                         for (; finish != end; ++finish) {
 316                                 toclevel = finish->layout()->toclevel;
 317                                 if (toclevel != Layout::NOT_IN_TOC && toclevel <= thistoclevel)
 318                                         break;
 319                         }
 320                         ParagraphList::iterator dest = finish;
 321                         // Go one down from *this* header:
 322                         if (dest != end)
 323                                 ++dest;
 324                         else
 325                                 break;
 326                         // Go further down to find header to insert in front of:
 327                         for (; dest != end; ++dest) {
 328                                 toclevel = dest->layout()->toclevel;
 329                                 if (toclevel != Layout::NOT_IN_TOC && toclevel <= thistoclevel)
 330                                         break;
 331                         }
 332                         // One such was found:
 333                         pit_type newpit = distance(bgn, dest);
 334                         pit_type const len = distance(start, finish);
 335                         buf.undo().recordUndo(cur, ATOMIC_UNDO, pit, newpit - 1);
 336                         pars.insert(dest, start, finish);
 337                         start = boost::next(bgn, pit);
 338                         pit = newpit - len;
 339                         pars.erase(start, finish);
 340                         break;
 341                 }
 342                 case OutlineIn:
 343                         buf.undo().recordUndo(cur);
 344                         for (size_t i = 0; i != tc.layoutCount(); ++i) {
 345                                 LayoutPtr const & lt = tc.layout(i);
 346                                 if (lt->toclevel == thistoclevel + 1 &&
 347                                     start->layout()->labeltype == lt->labeltype) {
 348                                         start->setLayout(lt);
 349                                         break;
 350                                 }
 351                         }
 352                         break;
 353                 case OutlineOut:
 354                         buf.undo().recordUndo(cur);
 355                         for (size_t i = 0; i != tc.layoutCount(); ++i) {
 356                                 LayoutPtr const & lt = tc.layout(i);
 357                                 if (lt->toclevel == thistoclevel - 1 &&
 358                                     start->layout()->labeltype == lt->labeltype) {
 359                                         start->setLayout(lt);
 360                                         break;
 361                                 }
 362                         }
 363                         break;
 364                 default:
 365                         break;
 366         }
 367 }
 368
 369
 370 void Text::number(Cursor & cur)
 371 {
 372         FontInfo font = ignore_font;
 373         font.setNumber(FONT_TOGGLE);
 374         toggleAndShow(cur, this, Font(font, ignore_language));
 375 }
 376
 377
 378 bool Text::isRTL(Buffer const & buffer, Paragraph const & par) const
 379 {
 380         return par.isRTL(buffer.params());
 381 }
 382
 383
 384 void Text::dispatch(Cursor & cur, FuncRequest & cmd)
 385 {
 386         LYXERR(Debug::ACTION, "Text::dispatch: cmd: " << cmd);
 387
 388         BufferView * bv = &cur.bv();
 389         TextMetrics & tm = bv->textMetrics(this);
 390         if (!tm.has(cur.pit()))
 391                 lyx::dispatch(FuncRequest(LFUN_SCREEN_RECENTER));
 392
 393         // FIXME: We use the update flag to indicates wether a singlePar or a
 394         // full screen update is needed. We reset it here but shall we restore it
 395         // at the end?
 396         cur.noUpdate();
 397
 398         BOOST_ASSERT(cur.text() == this);
 399         CursorSlice oldTopSlice = cur.top();
 400         bool oldBoundary = cur.boundary();
 401         bool sel = cur.selection();
 402         // Signals that, even if needsUpdate == false, an update of the
 403         // cursor paragraph is required
 404         bool singleParUpdate = lyxaction.funcHasFlag(cmd.action,
 405                 LyXAction::SingleParUpdate);
 406         // Signals that a full-screen update is required
 407         bool needsUpdate = !(lyxaction.funcHasFlag(cmd.action,
 408                 LyXAction::NoUpdate) || singleParUpdate);
 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                 if (lyxrc.visual_cursor) {
 533                         needsUpdate |= cur.selHandle(cmd.action == LFUN_CHAR_LEFT_SELECT);
 534                         needsUpdate |= cursorVisLeft(cur);
 535                         if (!needsUpdate && oldTopSlice == cur.top()
 536                                         && cur.boundary() == oldBoundary) {
 537                                 cur.undispatched();
 538                                 cmd = FuncRequest(LFUN_FINISHED_LEFT);
 539                         }
 540                 } else {
 541                         if (reverseDirectionNeeded(cur)) {
 542                                 cmd.action = cmd.action == LFUN_CHAR_LEFT_SELECT ?
 543                                         LFUN_CHAR_FORWARD_SELECT : LFUN_CHAR_FORWARD;
 544                         } else {
 545                                 cmd.action = cmd.action == LFUN_CHAR_LEFT_SELECT ?
 546                                         LFUN_CHAR_BACKWARD_SELECT : LFUN_CHAR_BACKWARD;
 547                         }
 548                         dispatch(cur, cmd);
 549                         return;
 550                 }
 551                 break;
 552
 553         case LFUN_CHAR_RIGHT:
 554         case LFUN_CHAR_RIGHT_SELECT:
 555                 if (lyxrc.visual_cursor) {
 556                         needsUpdate |= cur.selHandle(cmd.action == LFUN_CHAR_RIGHT_SELECT);
 557                         needsUpdate |= cursorVisRight(cur);
 558                         if (!needsUpdate && oldTopSlice == cur.top()
 559                                         && cur.boundary() == oldBoundary) {
 560                                 cur.undispatched();
 561                                 cmd = FuncRequest(LFUN_FINISHED_RIGHT);
 562                         }
 563                 } else {
 564                         if (reverseDirectionNeeded(cur)) {
 565                                 cmd.action = cmd.action == LFUN_CHAR_RIGHT_SELECT ?
 566                                         LFUN_CHAR_BACKWARD_SELECT : LFUN_CHAR_BACKWARD;
 567                         } else {
 568                                 cmd.action = cmd.action == LFUN_CHAR_RIGHT_SELECT ?
 569                                         LFUN_CHAR_FORWARD_SELECT : LFUN_CHAR_FORWARD;
 570                         }
 571                         dispatch(cur, cmd);
 572                         return;
 573                 }
 574                 break;
 575
 576
 577         case LFUN_UP_SELECT:
 578         case LFUN_DOWN_SELECT:
 579         case LFUN_UP:
 580         case LFUN_DOWN: {
 581                 // stop/start the selection
 582                 bool select = cmd.action == LFUN_DOWN_SELECT ||
 583                         cmd.action == LFUN_UP_SELECT;
 584                 cur.selHandle(select);
 585
 586                 // move cursor up/down
 587                 bool up = cmd.action == LFUN_UP_SELECT || cmd.action == LFUN_UP;
 588                 bool const successful = cur.upDownInText(up, needsUpdate);
 589                 if (successful) {
 590                         // redraw if you leave mathed (for the decorations)
 591                         needsUpdate |= cur.beforeDispatchCursor().inMathed();
 592                 } else
 593                         cur.undispatched();
 594
 595                 break;
 596         }
 597
 598         case LFUN_PARAGRAPH_UP:
 599         case LFUN_PARAGRAPH_UP_SELECT:
 600                 needsUpdate |= cur.selHandle(cmd.action == LFUN_PARAGRAPH_UP_SELECT);
 601                 needsUpdate |= cursorUpParagraph(cur);
 602                 break;
 603
 604         case LFUN_PARAGRAPH_DOWN:
 605         case LFUN_PARAGRAPH_DOWN_SELECT:
 606                 needsUpdate |= cur.selHandle(cmd.action == LFUN_PARAGRAPH_DOWN_SELECT);
 607                 needsUpdate |= cursorDownParagraph(cur);
 608                 break;
 609
 610         case LFUN_SCREEN_UP_SELECT:
 611                 needsUpdate |= cur.selHandle(true);
 612                 if (cur.pit() == 0 && cur.textRow().pos() == 0)
 613                         cur.undispatched();
 614                 else {
 615                         tm.cursorPrevious(cur);
 616                 }
 617                 break;
 618
 619         case LFUN_SCREEN_DOWN_SELECT:
 620                 needsUpdate |= cur.selHandle(true);
 621                 if (cur.pit() == cur.lastpit()
 622                           && cur.textRow().endpos() == cur.lastpos())
 623                         cur.undispatched();
 624                 else {
 625                         tm.cursorNext(cur);
 626                 }
 627                 break;
 628
 629         case LFUN_LINE_BEGIN:
 630         case LFUN_LINE_BEGIN_SELECT:
 631                 needsUpdate |= cur.selHandle(cmd.action == LFUN_LINE_BEGIN_SELECT);
 632                 needsUpdate |= tm.cursorHome(cur);
 633                 break;
 634
 635         case LFUN_LINE_END:
 636         case LFUN_LINE_END_SELECT:
 637                 needsUpdate |= cur.selHandle(cmd.action == LFUN_LINE_END_SELECT);
 638                 needsUpdate |= tm.cursorEnd(cur);
 639                 break;
 640
 641         case LFUN_WORD_RIGHT:
 642         case LFUN_WORD_RIGHT_SELECT:
 643                 //FIXME: for visual cursor mode, really move right
 644                 if (reverseDirectionNeeded(cur)) {
 645                         cmd.action = cmd.action == LFUN_WORD_RIGHT_SELECT ?
 646                                         LFUN_WORD_BACKWARD_SELECT : LFUN_WORD_BACKWARD;
 647                 } else {
 648                         cmd.action = cmd.action == LFUN_WORD_RIGHT_SELECT ?
 649                                         LFUN_WORD_FORWARD_SELECT : LFUN_WORD_FORWARD;
 650                 }
 651                 dispatch(cur, cmd);
 652                 return;
 653
 654         case LFUN_WORD_FORWARD:
 655         case LFUN_WORD_FORWARD_SELECT:
 656                 needsUpdate |= cur.selHandle(cmd.action == LFUN_WORD_FORWARD_SELECT);
 657                 needsUpdate |= cursorForwardOneWord(cur);
 658                 break;
 659
 660         case LFUN_WORD_LEFT:
 661         case LFUN_WORD_LEFT_SELECT:
 662                 //FIXME: for visual cursor mode, really move left
 663                 if (reverseDirectionNeeded(cur)) {
 664                         cmd.action = cmd.action == LFUN_WORD_LEFT_SELECT ?
 665                                         LFUN_WORD_FORWARD_SELECT : LFUN_WORD_FORWARD;
 666                 } else {
 667                         cmd.action = cmd.action == LFUN_WORD_LEFT_SELECT ?
 668                                         LFUN_WORD_BACKWARD_SELECT : LFUN_WORD_BACKWARD;
 669                 }
 670                 dispatch(cur, cmd);
 671                 return;
 672
 673         case LFUN_WORD_BACKWARD:
 674         case LFUN_WORD_BACKWARD_SELECT:
 675                 needsUpdate |= cur.selHandle(cmd.action == LFUN_WORD_BACKWARD_SELECT);
 676                 needsUpdate |= cursorBackwardOneWord(cur);
 677                 break;
 678
 679         case LFUN_WORD_SELECT: {
 680                 selectWord(cur, WHOLE_WORD);
 681                 finishChange(cur, true);
 682                 break;
 683         }
 684
 685         case LFUN_NEW_LINE: {
 686                 // Not allowed by LaTeX (labels or empty par)
 687                 if (cur.pos() > cur.paragraph().beginOfBody()) {
 688                         // this avoids a double undo
 689                         // FIXME: should not be needed, ideally
 690                         if (!cur.selection())
 691                                 cur.recordUndo();
 692                         cap::replaceSelection(cur);
 693                         cur.insert(new InsetNewline);
 694                         cur.posForward();
 695                         moveCursor(cur, false);
 696                 }
 697                 break;
 698         }
 699
 700         case LFUN_LINE_BREAK: {
 701                 // Not allowed by LaTeX (labels or empty par)
 702                 if (cur.pos() > cur.paragraph().beginOfBody()) {
 703                         // this avoids a double undo
 704                         // FIXME: should not be needed, ideally
 705                         if (!cur.selection())
 706                                 cur.recordUndo();
 707                         cap::replaceSelection(cur);
 708                         cur.insert(new InsetLinebreak);
 709                         cur.posForward();
 710                         moveCursor(cur, false);
 711                 }
 712                 break;
 713         }
 714
 715         case LFUN_CHAR_DELETE_FORWARD:
 716                 if (!cur.selection()) {
 717                         if (cur.pos() == cur.paragraph().size())
 718                                 // Par boundary, force full-screen update
 719                                 singleParUpdate = false;
 720                         needsUpdate |= erase(cur);
 721                         cur.resetAnchor();
 722                         // It is possible to make it a lot faster still
 723                         // just comment out the line below...
 724                 } else {
 725                         cutSelection(cur, true, false);
 726                         singleParUpdate = false;
 727                 }
 728                 moveCursor(cur, false);
 729                 break;
 730
 731         case LFUN_DELETE_FORWARD_SKIP:
 732                 // Reverse the effect of LFUN_BREAK_PARAGRAPH_SKIP.
 733                 if (!cur.selection()) {
 734                         if (cur.pos() == cur.lastpos()) {
 735                                 cursorForward(cur);
 736                                 cursorBackward(cur);
 737                         }
 738                         erase(cur);
 739                         cur.resetAnchor();
 740                 } else {
 741                         cutSelection(cur, true, false);
 742                 }
 743                 break;
 744
 745
 746         case LFUN_CHAR_DELETE_BACKWARD:
 747                 if (!cur.selection()) {
 748                         if (bv->getIntl().getTransManager().backspace()) {
 749                                 // Par boundary, full-screen update
 750                                 if (cur.pos() == 0)
 751                                         singleParUpdate = false;
 752                                 needsUpdate |= backspace(cur);
 753                                 cur.resetAnchor();
 754                                 // It is possible to make it a lot faster still
 755                                 // just comment out the line below...
 756                         }
 757                 } else {
 758                         cutSelection(cur, true, false);
 759                         singleParUpdate = false;
 760                 }
 761                 break;
 762
 763         case LFUN_DELETE_BACKWARD_SKIP:
 764                 // Reverse the effect of LFUN_BREAK_PARAGRAPH_SKIP.
 765                 if (!cur.selection()) {
 766                         // FIXME: look here
 767                         //CursorSlice cur = cursor();
 768                         backspace(cur);
 769                         //anchor() = cur;
 770                 } else {
 771                         cutSelection(cur, true, false);
 772                 }
 773                 break;
 774
 775         case LFUN_BREAK_PARAGRAPH:
 776                 cap::replaceSelection(cur);
 777                 breakParagraph(cur, cmd.argument() == "inverse");
 778                 cur.resetAnchor();
 779                 break;
 780
 781         case LFUN_BREAK_PARAGRAPH_SKIP: {
 782                 // When at the beginning of a paragraph, remove
 783                 // indentation.  Otherwise, do the same as LFUN_BREAK_PARAGRAPH.
 784                 cap::replaceSelection(cur);
 785                 if (cur.pos() == 0)
 786                         cur.paragraph().params().labelWidthString(docstring());
 787                 else
 788                         breakParagraph(cur, false);
 789                 cur.resetAnchor();
 790                 break;
 791         }
 792
 793         // TODO
 794         // With the creation of LFUN_PARAGRAPH_PARAMS, this is now redundant,
 795         // as its duties can be performed there. Should it be removed??
 796         // FIXME For now, it can just dispatch LFUN_PARAGRAPH_PARAMS...
 797         case LFUN_PARAGRAPH_SPACING: {
 798                 Paragraph & par = cur.paragraph();
 799                 Spacing::Space cur_spacing = par.params().spacing().getSpace();
 800                 string cur_value = "1.0";
 801                 if (cur_spacing == Spacing::Other)
 802                         cur_value = par.params().spacing().getValueAsString();
 803
 804                 istringstream is(to_utf8(cmd.argument()));
 805                 string tmp;
 806                 is >> tmp;
 807                 Spacing::Space new_spacing = cur_spacing;
 808                 string new_value = cur_value;
 809                 if (tmp.empty()) {
 810                         lyxerr << "Missing argument to `paragraph-spacing'"
 811                                << endl;
 812                 } else if (tmp == "single") {
 813                         new_spacing = Spacing::Single;
 814                 } else if (tmp == "onehalf") {
 815                         new_spacing = Spacing::Onehalf;
 816                 } else if (tmp == "double") {
 817                         new_spacing = Spacing::Double;
 818                 } else if (tmp == "other") {
 819                         new_spacing = Spacing::Other;
 820                         string tmpval = "0.0";
 821                         is >> tmpval;
 822                         lyxerr << "new_value = " << tmpval << endl;
 823                         if (tmpval != "0.0")
 824                                 new_value = tmpval;
 825                 } else if (tmp == "default") {
 826                         new_spacing = Spacing::Default;
 827                 } else {
 828                         lyxerr << to_utf8(_("Unknown spacing argument: "))
 829                                << to_utf8(cmd.argument()) << endl;
 830                 }
 831                 if (cur_spacing != new_spacing || cur_value != new_value)
 832                         par.params().spacing(Spacing(new_spacing, new_value));
 833                 break;
 834         }
 835
 836         case LFUN_INSET_INSERT: {
 837                 cur.recordUndo();
 838                 Inset * inset = createInset(bv->buffer(), cmd);
 839                 if (inset) {
 840                         // FIXME (Abdel 01/02/2006):
 841                         // What follows would be a partial fix for bug 2154:
 842                         //   http://bugzilla.lyx.org/show_bug.cgi?id=2154
 843                         // This automatically put the label inset _after_ a
 844                         // numbered section. It should be possible to extend the mechanism
 845                         // to any kind of LateX environement.
 846                         // The correct way to fix that bug would be at LateX generation.
 847                         // I'll let the code here for reference as it could be used for some
 848                         // other feature like "automatic labelling".
 849                         /*
 850                         Paragraph & par = pars_[cur.pit()];
 851                         if (inset->lyxCode() == LABEL_CODE
 852                                 && par.layout()->labeltype == LABEL_COUNTER) {
 853                                 // Go to the end of the paragraph
 854                                 // Warning: Because of Change-Tracking, the last
 855                                 // position is 'size()' and not 'size()-1':
 856                                 cur.pos() = par.size();
 857                                 // Insert a new paragraph
 858                                 FuncRequest fr(LFUN_BREAK_PARAGRAPH);
 859                                 dispatch(cur, fr);
 860                         }
 861                         */
 862                         if (cur.selection())
 863                                 cutSelection(cur, true, false);
 864                         insertInset(cur, inset);
 865                         cur.posForward();
 866                 }
 867                 break;
 868         }
 869
 870         case LFUN_INSET_DISSOLVE:
 871                 needsUpdate |= dissolveInset(cur);
 872                 break;
 873
 874         case LFUN_INSET_SETTINGS:
 875                 cur.inset().showInsetDialog(bv);
 876                 break;
 877
 878         case LFUN_SPACE_INSERT:
 879                 if (cur.paragraph().layout()->free_spacing)
 880                         insertChar(cur, ' ');
 881                 else {
 882                         doInsertInset(cur, this, cmd, false, false);
 883                         cur.posForward();
 884                 }
 885                 moveCursor(cur, false);
 886                 break;
 887
 888         case LFUN_SPECIALCHAR_INSERT: {
 889                 string const name = to_utf8(cmd.argument());
 890                 if (name == "hyphenation")
 891                         specialChar(cur, InsetSpecialChar::HYPHENATION);
 892                 else if (name == "ligature-break")
 893                         specialChar(cur, InsetSpecialChar::LIGATURE_BREAK);
 894                 else if (name == "slash")
 895                         specialChar(cur, InsetSpecialChar::SLASH);
 896                 else if (name == "nobreakdash")
 897                         specialChar(cur, InsetSpecialChar::NOBREAKDASH);
 898                 else if (name == "dots")
 899                         specialChar(cur, InsetSpecialChar::LDOTS);
 900                 else if (name == "end-of-sentence")
 901                         specialChar(cur, InsetSpecialChar::END_OF_SENTENCE);
 902                 else if (name == "menu-separator")
 903                         specialChar(cur, InsetSpecialChar::MENU_SEPARATOR);
 904                 else if (name.empty())
 905                         lyxerr << "LyX function 'specialchar-insert' needs an argument." << endl;
 906                 else
 907                         lyxerr << "Wrong argument for LyX function 'specialchar-insert'." << endl;
 908                 break;
 909         }
 910
 911         case LFUN_WORD_UPCASE:
 912                 changeCase(cur, text_uppercase);
 913                 break;
 914
 915         case LFUN_WORD_LOWCASE:
 916                 changeCase(cur, text_lowercase);
 917                 break;
 918
 919         case LFUN_WORD_CAPITALIZE:
 920                 changeCase(cur, text_capitalization);
 921                 break;
 922
 923         case LFUN_CHARS_TRANSPOSE:
 924                 charsTranspose(cur);
 925                 break;
 926
 927         case LFUN_PASTE: {
 928                 cur.message(_("Paste"));
 929                 cap::replaceSelection(cur);
 930
 931                 // without argument?
 932                 string const arg = to_utf8(cmd.argument());
 933                 if (arg.empty()) {
 934                         if (theClipboard().isInternal())
 935                                 pasteFromStack(cur, bv->buffer().errorList("Paste"), 0);
 936                         else if (theClipboard().hasGraphicsContents())
 937                                 pasteClipboardGraphics(cur, bv->buffer().errorList("Paste"));
 938                         else
 939                                 pasteClipboardText(cur, bv->buffer().errorList("Paste"));
 940                 } else if (isStrUnsignedInt(arg)) {
 941                         // we have a numerical argument
 942                         pasteFromStack(cur, bv->buffer().errorList("Paste"),
 943                                        convert<unsigned int>(arg));
 944                 } else {
 945                         Clipboard::GraphicsType type;
 946                         if (arg == "pdf")
 947                                 type = Clipboard::PdfGraphicsType;
 948                         else if (arg == "png")
 949                                 type = Clipboard::PngGraphicsType;
 950                         else if (arg == "jpeg")
 951                                 type = Clipboard::JpegGraphicsType;
 952                         else if (arg == "linkback")
 953                                 type = Clipboard::LinkBackGraphicsType;
 954                         else
 955                                 BOOST_ASSERT(false);
 956
 957                         pasteClipboardGraphics(cur, bv->buffer().errorList("Paste"), type);
 958                 }
 959
 960                 bv->buffer().errors("Paste");
 961                 cur.clearSelection(); // bug 393
 962                 cur.finishUndo();
 963                 break;
 964         }
 965
 966         case LFUN_CUT:
 967                 cutSelection(cur, true, true);
 968                 cur.message(_("Cut"));
 969                 break;
 970
 971         case LFUN_COPY:
 972                 copySelection(cur);
 973                 cur.message(_("Copy"));
 974                 break;
 975
 976         case LFUN_SERVER_GET_XY:
 977                 cur.message(from_utf8(
 978                         convert<string>(tm.cursorX(cur.top(), cur.boundary()))
 979                         + ' ' + convert<string>(tm.cursorY(cur.top(), cur.boundary()))));
 980                 break;
 981
 982         case LFUN_SERVER_SET_XY: {
 983                 int x = 0;
 984                 int y = 0;
 985                 istringstream is(to_utf8(cmd.argument()));
 986                 is >> x >> y;
 987                 if (!is)
 988                         lyxerr << "SETXY: Could not parse coordinates in '"
 989                                << to_utf8(cmd.argument()) << endl;
 990                 else
 991                         tm.setCursorFromCoordinates(cur, x, y);
 992                 break;
 993         }
 994
 995         case LFUN_SERVER_GET_FONT:
 996                 if (cur.current_font.fontInfo().shape() == ITALIC_SHAPE)
 997                         cur.message(from_ascii("E"));
 998                 else if (cur.current_font.fontInfo().shape() == SMALLCAPS_SHAPE)
 999                         cur.message(from_ascii("N"));
1000                 else
1001                         cur.message(from_ascii("0"));
1002                 break;
1003
1004         case LFUN_SERVER_GET_LAYOUT:
1005                 cur.message(cur.paragraph().layout()->name());
1006                 break;
1007
1008         case LFUN_LAYOUT: {
1009                 docstring layout = cmd.argument();
1010                 LYXERR(Debug::INFO, "LFUN_LAYOUT: (arg) " << to_utf8(layout));
1011
1012                 Paragraph const & para = cur.paragraph();
1013                 docstring const old_layout = para.layout()->name();
1014                 TextClass const & tclass = bv->buffer().params().textClass();
1015
1016                 if (layout.empty())
1017                         layout = tclass.defaultLayoutName();
1018
1019                 if (para.forceEmptyLayout())
1020                         // in this case only the empty layout is allowed
1021                         layout = tclass.emptyLayoutName();
1022                 else if (para.useEmptyLayout()) {
1023                         // in this case, default layout maps to empty layout
1024                         if (layout == tclass.defaultLayoutName())
1025                                 layout = tclass.emptyLayoutName();
1026                 } else {
1027                         // otherwise, the empty layout maps to the default
1028                         if (layout == tclass.emptyLayoutName())
1029                                 layout = tclass.defaultLayoutName();
1030                 }
1031
1032                 bool hasLayout = tclass.hasLayout(layout);
1033
1034                 // If the entry is obsolete, use the new one instead.
1035                 if (hasLayout) {
1036                         docstring const & obs = tclass[layout]->obsoleted_by();
1037                         if (!obs.empty())
1038                                 layout = obs;
1039                 }
1040
1041                 if (!hasLayout) {
1042                         cur.errorMessage(from_utf8(N_("Layout ")) + cmd.argument() +
1043                                 from_utf8(N_(" not known")));
1044                         break;
1045                 }
1046
1047                 bool change_layout = (old_layout != layout);
1048
1049                 if (!change_layout && cur.selection() &&
1050                         cur.selBegin().pit() != cur.selEnd().pit())
1051                 {
1052                         pit_type spit = cur.selBegin().pit();
1053                         pit_type epit = cur.selEnd().pit() + 1;
1054                         while (spit != epit) {
1055                                 if (pars_[spit].layout()->name() != old_layout) {
1056                                         change_layout = true;
1057                                         break;
1058                                 }
1059                                 ++spit;
1060                         }
1061                 }
1062
1063                 if (change_layout)
1064                         setLayout(cur, layout);
1065
1066                 break;
1067         }
1068
1069         case LFUN_CLIPBOARD_PASTE:
1070                 cur.clearSelection();
1071                 pasteClipboardText(cur, bv->buffer().errorList("Paste"),
1072                                cmd.argument() == "paragraph");
1073                 bv->buffer().errors("Paste");
1074                 break;
1075
1076         case LFUN_PRIMARY_SELECTION_PASTE:
1077                 pasteString(cur, theSelection().get(),
1078                             cmd.argument() == "paragraph");
1079                 break;
1080
1081         case LFUN_UNICODE_INSERT: {
1082                 if (cmd.argument().empty())
1083                         break;
1084                 docstring hexstring = cmd.argument();
1085                 if (isHex(hexstring)) {
1086                         char_type c = hexToInt(hexstring);
1087                         if (c >= 32 && c < 0x10ffff) {
1088                                 lyxerr << "Inserting c: " << c << endl;
1089                                 docstring s = docstring(1, c);
1090                                 lyx::dispatch(FuncRequest(LFUN_SELF_INSERT, s));
1091                         }
1092                 }
1093                 break;
1094         }
1095
1096         case LFUN_QUOTE_INSERT: {
1097                 Paragraph & par = cur.paragraph();
1098                 pos_type pos = cur.pos();
1099                 BufferParams const & bufparams = bv->buffer().params();
1100                 LayoutPtr const & style = par.layout();
1101                 if (!style->pass_thru
1102                     && par.getFontSettings(bufparams, pos).language()->lang() != "hebrew") {
1103                         // this avoids a double undo
1104                         // FIXME: should not be needed, ideally
1105                         if (!cur.selection())
1106                                 cur.recordUndo();
1107                         cap::replaceSelection(cur);
1108                         pos = cur.pos();
1109                         char_type c;
1110                         if (pos == 0)
1111                                 c = ' ';
1112                         else if (cur.prevInset() && cur.prevInset()->isSpace())
1113                                 c = ' ';
1114                         else
1115                                 c = par.getChar(pos - 1);
1116                         string arg = to_utf8(cmd.argument());
1117                         if (arg == "single")
1118                                 cur.insert(new InsetQuotes(c,
1119                                     bufparams.quotes_language,
1120                                     InsetQuotes::SingleQ));
1121                         else
1122                                 cur.insert(new InsetQuotes(c,
1123                                     bufparams.quotes_language,
1124                                     InsetQuotes::DoubleQ));
1125                         cur.posForward();
1126                 }
1127                 else
1128                         lyx::dispatch(FuncRequest(LFUN_SELF_INSERT, "\""));
1129                 break;
1130         }
1131
1132         case LFUN_DATE_INSERT: {
1133                 string const format = cmd.argument().empty()
1134                         ? lyxrc.date_insert_format : to_utf8(cmd.argument());
1135                 string const time = formatted_time(current_time(), format);
1136                 lyx::dispatch(FuncRequest(LFUN_SELF_INSERT, time));
1137                 break;
1138         }
1139
1140         case LFUN_MOUSE_TRIPLE:
1141                 if (cmd.button() == mouse_button::button1) {
1142                         tm.cursorHome(cur);
1143                         cur.resetAnchor();
1144                         tm.cursorEnd(cur);
1145                         cur.setSelection();
1146                         bv->cursor() = cur;
1147                 }
1148                 break;
1149
1150         case LFUN_MOUSE_DOUBLE:
1151                 if (cmd.button() == mouse_button::button1) {
1152                         selectWord(cur, WHOLE_WORD_STRICT);
1153                         bv->cursor() = cur;
1154                 }
1155                 break;
1156
1157         // Single-click on work area
1158         case LFUN_MOUSE_PRESS: {
1159                 // Right click on a footnote flag opens float menu
1160                 // FIXME: Why should we clear the selection in this case?
1161                 if (cmd.button() == mouse_button::button3)
1162                         cur.clearSelection();
1163
1164                 bool do_selection = cmd.button() == mouse_button::button1
1165                         && cmd.argument() == "region-select";
1166                 // Set the cursor
1167                 bool update = bv->mouseSetCursor(cur, do_selection);
1168
1169                 // Insert primary selection with middle mouse
1170                 // if there is a local selection in the current buffer,
1171                 // insert this
1172                 if (cmd.button() == mouse_button::button2) {
1173                         if (cap::selection()) {
1174                                 // Copy the selection buffer to the clipboard
1175                                 // stack, because we want it to appear in the
1176                                 // "Edit->Paste recent" menu.
1177                                 cap::copySelectionToStack();
1178
1179                                 cap::pasteSelection(bv->cursor(),
1180                                                     bv->buffer().errorList("Paste"));
1181                                 bv->buffer().errors("Paste");
1182                                 bv->buffer().markDirty();
1183                                 bv->cursor().finishUndo();
1184                         } else {
1185                                 lyx::dispatch(FuncRequest(LFUN_PRIMARY_SELECTION_PASTE, "paragraph"));
1186                         }
1187                 }
1188
1189                 // we have to update after dEPM triggered
1190                 if (!update && cmd.button() == mouse_button::button1) {
1191                         needsUpdate = false;
1192                         cur.noUpdate();
1193                 }
1194
1195                 break;
1196         }
1197
1198         case LFUN_MOUSE_MOTION: {
1199                 // Only use motion with button 1
1200                 //if (cmd.button() != mouse_button::button1)
1201                 //      return false;
1202
1203                 // ignore motions deeper nested than the real anchor
1204                 Cursor & bvcur = cur.bv().cursor();
1205                 if (!bvcur.anchor_.hasPart(cur)) {
1206                         cur.undispatched();
1207                         break;
1208                 }
1209                 CursorSlice old = bvcur.top();
1210
1211                 int const wh = bv->workHeight();
1212                 int const y = max(0, min(wh - 1, cmd.y));
1213
1214                 tm.setCursorFromCoordinates(cur, cmd.x, y);
1215                 cur.setTargetX(cmd.x);
1216                 if (cmd.y >= wh)
1217                         lyx::dispatch(FuncRequest(LFUN_DOWN_SELECT));
1218                 else if (cmd.y < 0)
1219                         lyx::dispatch(FuncRequest(LFUN_UP_SELECT));
1220                 // This is to allow jumping over large insets
1221                 if (cur.top() == old) {
1222                         if (cmd.y >= wh)
1223                                 lyx::dispatch(FuncRequest(LFUN_DOWN_SELECT));
1224                         else if (cmd.y < 0)
1225                                 lyx::dispatch(FuncRequest(LFUN_UP_SELECT));
1226                 }
1227
1228                 if (cur.top() == old)
1229                         cur.noUpdate();
1230                 else {
1231                         // FIXME: This is brute force! But without it the selected
1232                         // area is not corrected updated while moving the mouse.
1233                         cur.updateFlags(Update::Force | Update::FitCursor);
1234                         // don't set anchor_
1235                         bvcur.setCursor(cur);
1236                         bvcur.selection() = true;
1237                         //lyxerr << "MOTION: " << bv->cursor() << endl;
1238                 }
1239                 break;
1240         }
1241
1242         case LFUN_MOUSE_RELEASE: {
1243                 if (cmd.button() == mouse_button::button2)
1244                         break;
1245
1246                 if (cmd.button() == mouse_button::button1) {
1247                         // if there is new selection, update persistent
1248                         // selection, otherwise, single click does not
1249                         // clear persistent selection buffer
1250                         if (cur.selection()) {
1251                                 // finish selection
1252                                 // if double click, cur is moved to the end of word by selectWord
1253                                 // but bvcur is current mouse position
1254                                 Cursor & bvcur = cur.bv().cursor();
1255                                 bvcur.selection() = true;
1256                         }
1257                         needsUpdate = false;
1258                         cur.noUpdate();
1259                 }
1260
1261                 break;
1262         }
1263
1264         case LFUN_SELF_INSERT: {
1265                 if (cmd.argument().empty())
1266                         break;
1267
1268                 // Automatically delete the currently selected
1269                 // text and replace it with what is being
1270                 // typed in now. Depends on lyxrc settings
1271                 // "auto_region_delete", which defaults to
1272                 // true (on).
1273
1274                 if (lyxrc.auto_region_delete && cur.selection())
1275                         cutSelection(cur, false, false);
1276
1277                 cur.clearSelection();
1278                 Font const old_font = cur.real_current_font;
1279
1280                 docstring::const_iterator cit = cmd.argument().begin();
1281                 docstring::const_iterator end = cmd.argument().end();
1282                 for (; cit != end; ++cit)
1283                         bv->translateAndInsert(*cit, this, cur);
1284
1285                 cur.resetAnchor();
1286                 moveCursor(cur, false);
1287                 break;
1288         }
1289
1290         case LFUN_HYPERLINK_INSERT: {
1291                 InsetCommandParams p(HYPERLINK_CODE);
1292                 docstring content;
1293                 if (cur.selection()) {
1294                         content = cur.selectionAsString(false);
1295                         cutSelection(cur, true, false);
1296                 }
1297                 p["target"] = (cmd.argument().empty()) ?
1298                         content : cmd.argument();
1299                 string const data = InsetCommandMailer::params2string("href", p);
1300                 if (p["target"].empty()) {
1301                         bv->showDialog("href", data);
1302                 } else {
1303                         FuncRequest fr(LFUN_INSET_INSERT, data);
1304                         dispatch(cur, fr);
1305                 }
1306                 break;
1307         }
1308
1309         case LFUN_LABEL_INSERT: {
1310                 InsetCommandParams p(LABEL_CODE);
1311                 // Try to generate a valid label
1312                 p["name"] = (cmd.argument().empty()) ?
1313                         cur.getPossibleLabel() :
1314                         cmd.argument();
1315                 string const data = InsetCommandMailer::params2string("label", p);
1316
1317                 if (cmd.argument().empty()) {
1318                         bv->showDialog("label", data);
1319                 } else {
1320                         FuncRequest fr(LFUN_INSET_INSERT, data);
1321                         dispatch(cur, fr);
1322                 }
1323                 break;
1324         }
1325
1326         case LFUN_INFO_INSERT: {
1327                 Inset * inset = createInset(cur.bv().buffer(), cmd);
1328                 if (!inset)
1329                         break;
1330                 // if an empty inset is created (cmd.argument() is empty)
1331                 // use current selection as parameter.
1332                 if (cmd.argument().empty() && cur.selection()) {
1333                         // use selected text as info to avoid a separate UI
1334                         docstring ds = cur.selectionAsString(false);
1335                         cutSelection(cur, true, false);
1336                         static_cast<InsetInfo *>(inset)->setInfo(to_utf8(ds));
1337                         static_cast<InsetInfo *>(inset)->updateInfo();
1338                 }
1339                 insertInset(cur, inset);
1340                 cur.posForward();
1341                 break;
1342         }
1343 #if 0
1344         case LFUN_LIST_INSERT:
1345         case LFUN_THEOREM_INSERT:
1346 #endif
1347         case LFUN_CAPTION_INSERT:
1348         case LFUN_FOOTNOTE_INSERT:
1349         case LFUN_NOTE_INSERT:
1350         case LFUN_FLEX_INSERT:
1351         case LFUN_BOX_INSERT:
1352         case LFUN_BRANCH_INSERT:
1353         case LFUN_BIBITEM_INSERT:
1354         case LFUN_ERT_INSERT:
1355         case LFUN_LISTING_INSERT:
1356         case LFUN_MARGINALNOTE_INSERT:
1357         case LFUN_OPTIONAL_INSERT:
1358         case LFUN_ENVIRONMENT_INSERT:
1359         case LFUN_INDEX_INSERT:
1360                 // Open the inset, and move the current selection
1361                 // inside it.
1362                 doInsertInset(cur, this, cmd, true, true);
1363                 cur.posForward();
1364                 // Some insets are numbered, others are shown in the outline pane so
1365                 // let's update the labels and the toc backend.
1366                 updateLabels(bv->buffer());
1367                 break;
1368
1369         case LFUN_TABULAR_INSERT:
1370                 // if there were no arguments, just open the dialog
1371                 if (doInsertInset(cur, this, cmd, false, true))
1372                         cur.posForward();
1373                 else
1374                         bv->showDialog("tabularcreate");
1375
1376                 break;
1377
1378         case LFUN_FLOAT_INSERT:
1379         case LFUN_FLOAT_WIDE_INSERT:
1380         case LFUN_WRAP_INSERT: {
1381                 bool content = cur.selection();  // will some text be moved into the inset?
1382
1383                 doInsertInset(cur, this, cmd, true, true);
1384                 cur.posForward();
1385                 ParagraphList & pars = cur.text()->paragraphs();
1386
1387                 TextClass const & tclass = bv->buffer().params().textClass();
1388
1389                 // add a separate paragraph for the caption inset
1390                 pars.push_back(Paragraph());
1391                 pars.back().setInsetOwner(pars[0].inInset());
1392                 pars.back().setEmptyOrDefaultLayout(tclass);
1393                 int cap_pit = pars.size() - 1;
1394
1395                 // if an empty inset was created, we create an additional empty
1396                 // paragraph at the bottom so that the user can choose where to put
1397                 // the graphics (or table).
1398                 if (!content) {
1399                         pars.push_back(Paragraph());
1400                         pars.back().setInsetOwner(pars[0].inInset());
1401                         pars.back().setEmptyOrDefaultLayout(tclass);
1402                 }
1403
1404                 // reposition the cursor to the caption
1405                 cur.pit() = cap_pit;
1406                 cur.pos() = 0;
1407                 // FIXME: This Text/Cursor dispatch handling is a mess!
1408                 // We cannot use Cursor::dispatch here it needs access to up to
1409                 // date metrics.
1410                 FuncRequest cmd_caption(LFUN_CAPTION_INSERT);
1411                 cur.text()->dispatch(cur, cmd_caption);
1412                 cur.updateFlags(Update::Force);
1413                 // FIXME: When leaving the Float (or Wrap) inset we should
1414                 // delete any empty paragraph left above or below the
1415                 // caption.
1416                 break;
1417         }
1418
1419         case LFUN_NOMENCL_INSERT: {
1420                 FuncRequest cmd1 = cmd;
1421                 if (cmd.argument().empty())
1422                         cmd1 = FuncRequest(cmd,
1423                                 bv->cursor().innerText()->getStringToIndex(bv->cursor()));
1424                 Inset * inset = createInset(cur.bv().buffer(), cmd1);
1425                 if (!inset)
1426                         break;
1427                 cur.recordUndo();
1428                 cur.clearSelection();
1429                 insertInset(cur, inset);
1430                 // Show the dialog for the nomenclature entry, since the
1431                 // description entry still needs to be filled in.
1432                 if (cmd.action == LFUN_NOMENCL_INSERT)
1433                         inset->edit(cur, true);
1434                 cur.posForward();
1435                 break;
1436         }
1437
1438         case LFUN_INDEX_PRINT:
1439         case LFUN_NOMENCL_PRINT:
1440         case LFUN_TOC_INSERT:
1441         case LFUN_HFILL_INSERT:
1442         case LFUN_LINE_INSERT:
1443         case LFUN_NEWPAGE_INSERT:
1444         case LFUN_PAGEBREAK_INSERT:
1445         case LFUN_CLEARPAGE_INSERT:
1446         case LFUN_CLEARDOUBLEPAGE_INSERT:
1447                 // do nothing fancy
1448                 doInsertInset(cur, this, cmd, false, false);
1449                 cur.posForward();
1450                 break;
1451
1452         case LFUN_DEPTH_DECREMENT:
1453                 changeDepth(cur, DEC_DEPTH);
1454                 break;
1455
1456         case LFUN_DEPTH_INCREMENT:
1457                 changeDepth(cur, INC_DEPTH);
1458                 break;
1459
1460         case LFUN_MATH_DISPLAY:
1461                 mathDispatch(cur, cmd, true);
1462                 break;
1463
1464         case LFUN_MATH_IMPORT_SELECTION:
1465         case LFUN_MATH_MODE:
1466                 if (cmd.argument() == "on")
1467                         // don't pass "on" as argument
1468                         mathDispatch(cur, FuncRequest(LFUN_MATH_MODE), false);
1469                 else
1470                         mathDispatch(cur, cmd, false);
1471                 break;
1472
1473         case LFUN_MATH_MACRO:
1474                 if (cmd.argument().empty())
1475                         cur.errorMessage(from_utf8(N_("Missing argument")));
1476                 else {
1477                         string s = to_utf8(cmd.argument());
1478                         string const s1 = token(s, ' ', 1);
1479                         int const nargs = s1.empty() ? 0 : convert<int>(s1);
1480                         string const s2 = token(s, ' ', 2);
1481                         MacroType type = MacroTypeNewcommand;
1482                         if (s2 == "def")
1483                                 type = MacroTypeDef;
1484                         cur.insert(new MathMacroTemplate(from_utf8(token(s, ' ', 0)), nargs, false, type));
1485                         //cur.nextInset()->edit(cur, true);
1486                 }
1487                 break;
1488
1489         // passthrough hat and underscore outside mathed:
1490         case LFUN_MATH_SUBSCRIPT:
1491                 mathDispatch(cur, FuncRequest(LFUN_SELF_INSERT, "_"), false);
1492                 break;
1493         case LFUN_MATH_SUPERSCRIPT:
1494                 mathDispatch(cur, FuncRequest(LFUN_SELF_INSERT, "^"), false);
1495                 break;
1496
1497         case LFUN_MATH_INSERT:
1498         case LFUN_MATH_MATRIX:
1499         case LFUN_MATH_DELIM:
1500         case LFUN_MATH_BIGDELIM: {
1501                 cap::replaceSelection(cur);
1502                 cur.insert(new InsetMathHull(hullSimple));
1503                 checkAndActivateInset(cur, true);
1504                 BOOST_ASSERT(cur.inMathed());
1505                 cur.dispatch(cmd);
1506                 break;
1507         }
1508
1509         case LFUN_FONT_EMPH: {
1510                 Font font(ignore_font, ignore_language);
1511                 font.fontInfo().setEmph(FONT_TOGGLE);
1512                 toggleAndShow(cur, this, font);
1513                 break;
1514         }
1515
1516         case LFUN_FONT_BOLD: {
1517                 Font font(ignore_font, ignore_language);
1518                 font.fontInfo().setSeries(BOLD_SERIES);
1519                 toggleAndShow(cur, this, font);
1520                 break;
1521         }
1522
1523         case LFUN_FONT_NOUN: {
1524                 Font font(ignore_font, ignore_language);
1525                 font.fontInfo().setNoun(FONT_TOGGLE);
1526                 toggleAndShow(cur, this, font);
1527                 break;
1528         }
1529
1530         case LFUN_FONT_TYPEWRITER: {
1531                 Font font(ignore_font, ignore_language);
1532                 font.fontInfo().setFamily(TYPEWRITER_FAMILY); // no good
1533                 toggleAndShow(cur, this, font);
1534                 break;
1535         }
1536
1537         case LFUN_FONT_SANS: {
1538                 Font font(ignore_font, ignore_language);
1539                 font.fontInfo().setFamily(SANS_FAMILY);
1540                 toggleAndShow(cur, this, font);
1541                 break;
1542         }
1543
1544         case LFUN_FONT_ROMAN: {
1545                 Font font(ignore_font, ignore_language);
1546                 font.fontInfo().setFamily(ROMAN_FAMILY);
1547                 toggleAndShow(cur, this, font);
1548                 break;
1549         }
1550
1551         case LFUN_FONT_DEFAULT: {
1552                 Font font(inherit_font, ignore_language);
1553                 toggleAndShow(cur, this, font);
1554                 break;
1555         }
1556
1557         case LFUN_FONT_UNDERLINE: {
1558                 Font font(ignore_font, ignore_language);
1559                 font.fontInfo().setUnderbar(FONT_TOGGLE);
1560                 toggleAndShow(cur, this, font);
1561                 break;
1562         }
1563
1564         case LFUN_FONT_SIZE: {
1565                 Font font(ignore_font, ignore_language);
1566                 setLyXSize(to_utf8(cmd.argument()), font.fontInfo());
1567                 toggleAndShow(cur, this, font);
1568                 break;
1569         }
1570
1571         case LFUN_LANGUAGE: {
1572                 Language const * lang = languages.getLanguage(to_utf8(cmd.argument()));
1573                 if (!lang)
1574                         break;
1575                 Font font(ignore_font, lang);
1576                 toggleAndShow(cur, this, font);
1577                 break;
1578         }
1579
1580         case LFUN_FONT_FREE_APPLY:
1581                 toggleAndShow(cur, this, freefont, toggleall);
1582                 cur.message(_("Character set"));
1583                 break;
1584
1585         // Set the freefont using the contents of \param data dispatched from
1586         // the frontends and apply it at the current cursor location.
1587         case LFUN_FONT_FREE_UPDATE: {
1588                 Font font;
1589                 bool toggle;
1590                 if (font.fromString(to_utf8(cmd.argument()), toggle)) {
1591                         freefont = font;
1592                         toggleall = toggle;
1593                         toggleAndShow(cur, this, freefont, toggleall);
1594                         cur.message(_("Character set"));
1595                 } else {
1596                         lyxerr << "Argument not ok";
1597                 }
1598                 break;
1599         }
1600
1601         case LFUN_FINISHED_LEFT:
1602                 LYXERR(Debug::DEBUG, "handle LFUN_FINISHED_LEFT:\n" << cur);
1603                 // We're leaving an inset, going left. If the inset is LTR, we're
1604                 // leaving from the front, so we should not move (remain at --- but
1605                 // not in --- the inset). If the inset is RTL, move left, without
1606                 // entering the inset itself; i.e., move to after the inset.
1607                 if (cur.paragraph().getFontSettings(
1608                                 cur.bv().buffer().params(), cur.pos()).isRightToLeft())
1609                         cursorVisLeft(cur, true);
1610                 break;
1611
1612         case LFUN_FINISHED_RIGHT:
1613                 LYXERR(Debug::DEBUG, "handle LFUN_FINISHED_RIGHT:\n" << cur);
1614                 // We're leaving an inset, going right. If the inset is RTL, we're
1615                 // leaving from the front, so we should not move (remain at --- but
1616                 // not in --- the inset). If the inset is LTR, move right, without
1617                 // entering the inset itself; i.e., move to after the inset.
1618                 if (!cur.paragraph().getFontSettings(
1619                                 cur.bv().buffer().params(), cur.pos()).isRightToLeft())
1620                         cursorVisRight(cur, true);
1621                 break;
1622
1623         case LFUN_FINISHED_BACKWARD:
1624                 LYXERR(Debug::DEBUG, "handle LFUN_FINISHED_BACKWARD:\n" << cur);
1625                 break;
1626
1627         case LFUN_FINISHED_FORWARD:
1628                 LYXERR(Debug::DEBUG, "handle LFUN_FINISHED_FORWARD:\n" << cur);
1629                 ++cur.pos();
1630                 cur.setCurrentFont();
1631                 break;
1632
1633         case LFUN_LAYOUT_PARAGRAPH: {
1634                 string data;
1635                 params2string(cur.paragraph(), data);
1636                 data = "show\n" + data;
1637                 bv->showDialog("paragraph", data);
1638                 break;
1639         }
1640
1641         case LFUN_PARAGRAPH_UPDATE: {
1642                 string data;
1643                 params2string(cur.paragraph(), data);
1644
1645                 // Will the paragraph accept changes from the dialog?
1646                 bool const accept =
1647                         cur.inset().allowParagraphCustomization(cur.idx());
1648
1649                 data = "update " + convert<string>(accept) + '\n' + data;
1650                 bv->updateDialog("paragraph", data);
1651                 break;
1652         }
1653
1654         case LFUN_ACCENT_UMLAUT:
1655         case LFUN_ACCENT_CIRCUMFLEX:
1656         case LFUN_ACCENT_GRAVE:
1657         case LFUN_ACCENT_ACUTE:
1658         case LFUN_ACCENT_TILDE:
1659         case LFUN_ACCENT_CEDILLA:
1660         case LFUN_ACCENT_MACRON:
1661         case LFUN_ACCENT_DOT:
1662         case LFUN_ACCENT_UNDERDOT:
1663         case LFUN_ACCENT_UNDERBAR:
1664         case LFUN_ACCENT_CARON:
1665         case LFUN_ACCENT_SPECIAL_CARON:
1666         case LFUN_ACCENT_BREVE:
1667         case LFUN_ACCENT_TIE:
1668         case LFUN_ACCENT_HUNGARIAN_UMLAUT:
1669         case LFUN_ACCENT_CIRCLE:
1670         case LFUN_ACCENT_OGONEK:
1671                 theLyXFunc().handleKeyFunc(cmd.action);
1672                 if (!cmd.argument().empty())
1673                         // FIXME: Are all these characters encoded in one byte in utf8?
1674                         bv->translateAndInsert(cmd.argument()[0], this, cur);
1675                 break;
1676
1677         case LFUN_FLOAT_LIST: {
1678                 TextClass const & tclass = bv->buffer().params().textClass();
1679                 if (tclass.floats().typeExist(to_utf8(cmd.argument()))) {
1680                         cur.recordUndo();
1681                         if (cur.selection())
1682                                 cutSelection(cur, true, false);
1683                         breakParagraph(cur);
1684
1685                         if (cur.lastpos() != 0) {
1686                                 cursorBackward(cur);
1687                                 breakParagraph(cur);
1688                         }
1689
1690                         //FIXME Check if this should be emptyLayout()
1691                         setLayout(cur, tclass.defaultLayoutName());
1692                         ParagraphParameters p;
1693                         setParagraphs(cur, p);
1694                         insertInset(cur, new InsetFloatList(to_utf8(cmd.argument())));
1695                         cur.posForward();
1696                 } else {
1697                         lyxerr << "Non-existent float type: "
1698                                << to_utf8(cmd.argument()) << endl;
1699                 }
1700                 break;
1701         }
1702
1703         case LFUN_CHANGE_ACCEPT: {
1704                 acceptOrRejectChanges(cur, ACCEPT);
1705                 break;
1706         }
1707
1708         case LFUN_CHANGE_REJECT: {
1709                 acceptOrRejectChanges(cur, REJECT);
1710                 break;
1711         }
1712
1713         case LFUN_THESAURUS_ENTRY: {
1714                 docstring arg = cmd.argument();
1715                 if (arg.empty()) {
1716                         arg = cur.selectionAsString(false);
1717                         // FIXME
1718                         if (arg.size() > 100 || arg.empty()) {
1719                                 // Get word or selection
1720                                 selectWordWhenUnderCursor(cur, WHOLE_WORD);
1721                                 arg = cur.selectionAsString(false);
1722                         }
1723                 }
1724                 bv->showDialog("thesaurus", to_utf8(arg));
1725                 break;
1726         }
1727
1728         case LFUN_PARAGRAPH_PARAMS_APPLY: {
1729                 // Given data, an encoding of the ParagraphParameters
1730                 // generated in the Paragraph dialog, this function sets
1731                 // the current paragraph, or currently selected paragraphs,
1732                 // appropriately.
1733                 // NOTE: This function overrides all existing settings.
1734                 setParagraphs(cur, cmd.argument());
1735                 cur.message(_("Paragraph layout set"));
1736                 break;
1737         }
1738
1739         case LFUN_PARAGRAPH_PARAMS: {
1740                 // Given data, an encoding of the ParagraphParameters as we'd
1741                 // find them in a LyX file, this function modifies the current paragraph,
1742                 // or currently selected paragraphs.
1743                 // NOTE: This function only modifies, and does not override, existing
1744                 // settings.
1745                 setParagraphs(cur, cmd.argument(), true);
1746                 cur.message(_("Paragraph layout set"));
1747                 break;
1748         }
1749
1750         case LFUN_ESCAPE:
1751                 if (cur.selection()) {
1752                         cur.selection() = false;
1753                 } else {
1754                         cur.undispatched();
1755                         // This used to be LFUN_FINISHED_RIGHT, I think FORWARD is more
1756                         // correct, but I'm not 100% sure -- dov, 071019
1757                         cmd = FuncRequest(LFUN_FINISHED_FORWARD);
1758                 }
1759                 break;
1760
1761         case LFUN_OUTLINE_UP:
1762                 outline(OutlineUp, cur);
1763                 setCursor(cur, cur.pit(), 0);
1764                 updateLabels(cur.buffer());
1765                 needsUpdate = true;
1766                 break;
1767
1768         case LFUN_OUTLINE_DOWN:
1769                 outline(OutlineDown, cur);
1770                 setCursor(cur, cur.pit(), 0);
1771                 updateLabels(cur.buffer());
1772                 needsUpdate = true;
1773                 break;
1774
1775         case LFUN_OUTLINE_IN:
1776                 outline(OutlineIn, cur);
1777                 updateLabels(cur.buffer());
1778                 needsUpdate = true;
1779                 break;
1780
1781         case LFUN_OUTLINE_OUT:
1782                 outline(OutlineOut, cur);
1783                 updateLabels(cur.buffer());
1784                 needsUpdate = true;
1785                 break;
1786
1787         default:
1788                 LYXERR(Debug::ACTION, "Command " << cmd << " not DISPATCHED by Text");
1789                 cur.undispatched();
1790                 break;
1791         }
1792
1793         needsUpdate |= (cur.pos() != cur.lastpos()) && cur.selection();
1794
1795         // FIXME: The cursor flag is reset two lines below
1796         // so we need to check here if some of the LFUN did touch that.
1797         // for now only Text::erase() and Text::backspace() do that.
1798         // The plan is to verify all the LFUNs and then to remove this
1799         // singleParUpdate boolean altogether.
1800         if (cur.result().update() & Update::Force) {
1801                 singleParUpdate = false;
1802                 needsUpdate = true;
1803         }
1804
1805         // FIXME: the following code should go in favor of fine grained
1806         // update flag treatment.
1807         if (singleParUpdate) {
1808                 // Inserting characters does not change par height in general. So, try
1809                 // to update _only_ this paragraph. BufferView will detect if a full
1810                 // metrics update is needed anyway.
1811                 cur.updateFlags(Update::SinglePar | Update::FitCursor);
1812                 return;
1813         }
1814
1815         if (!needsUpdate
1816             && &oldTopSlice.inset() == &cur.inset()
1817             && oldTopSlice.idx() == cur.idx()
1818             && !sel // sel is a backup of cur.selection() at the biginning of the function.
1819             && !cur.selection())
1820                 // FIXME: it would be better if we could just do this
1821                 //
1822                 //if (cur.result().update() != Update::FitCursor)
1823                 //      cur.noUpdate();
1824                 //
1825                 // But some LFUNs do not set Update::FitCursor when needed, so we
1826                 // do it for all. This is not very harmfull as FitCursor will provoke
1827                 // a full redraw only if needed but still, a proper review of all LFUN
1828                 // should be done and this needsUpdate boolean can then be removed.
1829                 cur.updateFlags(Update::FitCursor);
1830         else
1831                 cur.updateFlags(Update::Force | Update::FitCursor);
1832 }
1833
1834
1835 bool Text::getStatus(Cursor & cur, FuncRequest const & cmd,
1836                         FuncStatus & flag) const
1837 {
1838         BOOST_ASSERT(cur.text() == this);
1839
1840         Font const & font = cur.real_current_font;
1841         FontInfo const & fontinfo = font.fontInfo();
1842         bool enable = true;
1843         InsetCode code = NO_CODE;
1844
1845         switch (cmd.action) {
1846
1847         case LFUN_DEPTH_DECREMENT:
1848                 enable = changeDepthAllowed(cur, DEC_DEPTH);
1849                 break;
1850
1851         case LFUN_DEPTH_INCREMENT:
1852                 enable = changeDepthAllowed(cur, INC_DEPTH);
1853                 break;
1854
1855         case LFUN_APPENDIX:
1856                 flag.setOnOff(cur.paragraph().params().startOfAppendix());
1857                 return true;
1858
1859         case LFUN_BIBITEM_INSERT:
1860                 enable = (cur.paragraph().layout()->labeltype == LABEL_BIBLIO
1861                           && cur.pos() == 0);
1862                 break;
1863
1864         case LFUN_DIALOG_SHOW_NEW_INSET:
1865                 if (cmd.argument() == "bibitem")
1866                         code = BIBITEM_CODE;
1867                 else if (cmd.argument() == "bibtex")
1868                         code = BIBTEX_CODE;
1869                 else if (cmd.argument() == "box")
1870                         code = BOX_CODE;
1871                 else if (cmd.argument() == "branch")
1872                         code = BRANCH_CODE;
1873                 else if (cmd.argument() == "citation")
1874                         code = CITE_CODE;
1875                 else if (cmd.argument() == "ert")
1876                         code = ERT_CODE;
1877                 else if (cmd.argument() == "external")
1878                         code = EXTERNAL_CODE;
1879                 else if (cmd.argument() == "float")
1880                         code = FLOAT_CODE;
1881                 else if (cmd.argument() == "graphics")
1882                         code = GRAPHICS_CODE;
1883                 else if (cmd.argument() == "href")
1884                         code = HYPERLINK_CODE;
1885                 else if (cmd.argument() == "include")
1886                         code = INCLUDE_CODE;
1887                 else if (cmd.argument() == "index")
1888                         code = INDEX_CODE;
1889                 else if (cmd.argument() == "nomenclature")
1890                         code = NOMENCL_CODE;
1891                 else if (cmd.argument() == "label")
1892                         code = LABEL_CODE;
1893                 else if (cmd.argument() == "note")
1894                         code = NOTE_CODE;
1895                 else if (cmd.argument() == "ref")
1896                         code = REF_CODE;
1897                 else if (cmd.argument() == "toc")
1898                         code = TOC_CODE;
1899                 else if (cmd.argument() == "vspace")
1900                         code = VSPACE_CODE;
1901                 else if (cmd.argument() == "wrap")
1902                         code = WRAP_CODE;
1903                 else if (cmd.argument() == "listings")
1904                         code = LISTINGS_CODE;
1905                 break;
1906
1907         case LFUN_ERT_INSERT:
1908                 code = ERT_CODE;
1909                 break;
1910         case LFUN_LISTING_INSERT:
1911             code = LISTINGS_CODE;
1912                 break;
1913         case LFUN_FOOTNOTE_INSERT:
1914                 code = FOOT_CODE;
1915                 break;
1916         case LFUN_TABULAR_INSERT:
1917                 code = TABULAR_CODE;
1918                 break;
1919         case LFUN_MARGINALNOTE_INSERT:
1920                 code = MARGIN_CODE;
1921                 break;
1922         case LFUN_FLOAT_INSERT:
1923         case LFUN_FLOAT_WIDE_INSERT:
1924                 code = FLOAT_CODE;
1925                 break;
1926         case LFUN_WRAP_INSERT:
1927                 code = WRAP_CODE;
1928                 break;
1929         case LFUN_FLOAT_LIST:
1930                 code = FLOAT_LIST_CODE;
1931                 break;
1932 #if 0
1933         case LFUN_LIST_INSERT:
1934                 code = LIST_CODE;
1935                 break;
1936         case LFUN_THEOREM_INSERT:
1937                 code = THEOREM_CODE;
1938                 break;
1939 #endif
1940         case LFUN_CAPTION_INSERT:
1941                 code = CAPTION_CODE;
1942                 break;
1943         case LFUN_NOTE_INSERT:
1944                 code = NOTE_CODE;
1945                 break;
1946         case LFUN_FLEX_INSERT: {
1947                 code = FLEX_CODE;
1948                 string s = cmd.getArg(0);
1949                 InsetLayout il =  cur.buffer().params().textClass().insetLayout(from_utf8(s));
1950                 if (il.lyxtype() != "charstyle" &&
1951                     il.lyxtype() != "custom" &&
1952                     il.lyxtype() != "element" &&
1953                     il.lyxtype ()!= "standard")
1954                         enable = false;
1955                 break;
1956                 }
1957         case LFUN_BOX_INSERT:
1958                 code = BOX_CODE;
1959                 break;
1960         case LFUN_BRANCH_INSERT:
1961                 code = BRANCH_CODE;
1962                 if (cur.buffer().masterBuffer()->params().branchlist().empty())
1963                         enable = false;
1964                 break;
1965         case LFUN_LABEL_INSERT:
1966                 code = LABEL_CODE;
1967                 break;
1968         case LFUN_INFO_INSERT:
1969                 code = INFO_CODE;
1970                 break;
1971         case LFUN_OPTIONAL_INSERT:
1972                 code = OPTARG_CODE;
1973                 enable = cur.paragraph().insetList().count(OPTARG_CODE)
1974                         < cur.paragraph().layout()->optionalargs;
1975                 break;
1976         case LFUN_ENVIRONMENT_INSERT:
1977                 code = BOX_CODE;
1978                 break;
1979         case LFUN_INDEX_INSERT:
1980                 code = INDEX_CODE;
1981                 break;
1982         case LFUN_INDEX_PRINT:
1983                 code = INDEX_PRINT_CODE;
1984                 break;
1985         case LFUN_NOMENCL_INSERT:
1986                 code = NOMENCL_CODE;
1987                 break;
1988         case LFUN_NOMENCL_PRINT:
1989                 code = NOMENCL_PRINT_CODE;
1990                 break;
1991         case LFUN_TOC_INSERT:
1992                 code = TOC_CODE;
1993                 break;
1994         case LFUN_HYPERLINK_INSERT:
1995                 code = HYPERLINK_CODE;
1996                 break;
1997         case LFUN_QUOTE_INSERT:
1998                 // always allow this, since we will inset a raw quote
1999                 // if an inset is not allowed.
2000                 break;
2001         case LFUN_HFILL_INSERT:
2002         case LFUN_SPECIALCHAR_INSERT:
2003                 code = SPECIALCHAR_CODE;
2004                 break;
2005         case LFUN_SPACE_INSERT:
2006                 // slight hack: we know this is allowed in math mode
2007                 if (cur.inTexted())
2008                         code = SPACE_CODE;
2009                 break;
2010
2011         case LFUN_INSET_MODIFY:
2012                 // We need to disable this, because we may get called for a
2013                 // tabular cell via
2014                 // InsetTabular::getStatus() -> InsetText::getStatus()
2015                 // and we don't handle LFUN_INSET_MODIFY.
2016                 enable = false;
2017                 break;
2018
2019         case LFUN_FONT_EMPH:
2020                 flag.setOnOff(fontinfo.emph() == FONT_ON);
2021                 return true;
2022
2023         case LFUN_FONT_NOUN:
2024                 flag.setOnOff(fontinfo.noun() == FONT_ON);
2025                 return true;
2026
2027         case LFUN_FONT_BOLD:
2028                 flag.setOnOff(fontinfo.series() == BOLD_SERIES);
2029                 return true;
2030
2031         case LFUN_FONT_SANS:
2032                 flag.setOnOff(fontinfo.family() == SANS_FAMILY);
2033                 return true;
2034
2035         case LFUN_FONT_ROMAN:
2036                 flag.setOnOff(fontinfo.family() == ROMAN_FAMILY);
2037                 return true;
2038
2039         case LFUN_FONT_TYPEWRITER:
2040                 flag.setOnOff(fontinfo.family() == TYPEWRITER_FAMILY);
2041                 return true;
2042
2043         case LFUN_CUT:
2044         case LFUN_COPY:
2045                 enable = cur.selection();
2046                 break;
2047
2048         case LFUN_PASTE: {
2049                 if (cmd.argument().empty()) {
2050                         if (theClipboard().isInternal())
2051                                 enable = cap::numberOfSelections() > 0;
2052                         else
2053                                 enable = !theClipboard().empty();
2054                         break;
2055                 }
2056
2057                 // we have an argument
2058                 string const arg = to_utf8(cmd.argument());
2059                 if (isStrUnsignedInt(arg)) {
2060                         // it's a number and therefore means the internal stack
2061                         unsigned int n = convert<unsigned int>(arg);
2062                         enable = cap::numberOfSelections() > n;
2063                         break;
2064                 }
2065
2066                 // explicit graphics type?
2067                 if ((arg == "pdf" && theClipboard().hasGraphicsContents(Clipboard::PdfGraphicsType))
2068                     || (arg == "png" && theClipboard().hasGraphicsContents(Clipboard::PngGraphicsType))
2069                     || (arg == "jpeg" && theClipboard().hasGraphicsContents(Clipboard::JpegGraphicsType))
2070                     || (arg == "linkback" && theClipboard().hasGraphicsContents(Clipboard::LinkBackGraphicsType))) {
2071                         enable = true;
2072                         break;
2073                 }
2074
2075                 // unknown argument
2076                 enable = false;
2077                 break;
2078          }
2079
2080         case LFUN_CLIPBOARD_PASTE:
2081                 enable = !theClipboard().empty();
2082                 break;
2083
2084         case LFUN_PRIMARY_SELECTION_PASTE:
2085                 enable = cur.selection() || !theSelection().empty();
2086                 break;
2087
2088         case LFUN_PARAGRAPH_MOVE_UP:
2089                 enable = cur.pit() > 0 && !cur.selection();
2090                 break;
2091
2092         case LFUN_PARAGRAPH_MOVE_DOWN:
2093                 enable = cur.pit() < cur.lastpit() && !cur.selection();
2094                 break;
2095
2096         case LFUN_INSET_DISSOLVE:
2097                 if (!cmd.argument().empty()) {
2098                         InsetLayout il = cur.inset().getLayout(cur.buffer().params());
2099                         enable = cur.inset().lyxCode() == FLEX_CODE
2100                                  && il.lyxtype() == to_utf8(cmd.argument());
2101                 } else {
2102                         enable = !isMainText(cur.bv().buffer())
2103                                  && cur.inset().nargs() == 1;
2104                 }
2105                 break;
2106
2107         case LFUN_CHANGE_ACCEPT:
2108         case LFUN_CHANGE_REJECT:
2109                 // TODO: context-sensitive enabling of LFUN_CHANGE_ACCEPT/REJECT
2110                 // In principle, these LFUNs should only be enabled if there
2111                 // is a change at the current position/in the current selection.
2112                 // However, without proper optimizations, this will inevitably
2113                 // result in unacceptable performance - just imagine a user who
2114                 // wants to select the complete content of a long document.
2115                 enable = true;
2116                 break;
2117
2118         case LFUN_OUTLINE_UP:
2119         case LFUN_OUTLINE_DOWN:
2120         case LFUN_OUTLINE_IN:
2121         case LFUN_OUTLINE_OUT:
2122                 enable = (cur.paragraph().layout()->toclevel != Layout::NOT_IN_TOC);
2123                 break;
2124
2125         case LFUN_WORD_DELETE_FORWARD:
2126         case LFUN_WORD_DELETE_BACKWARD:
2127         case LFUN_LINE_DELETE:
2128         case LFUN_WORD_FORWARD:
2129         case LFUN_WORD_BACKWARD:
2130         case LFUN_WORD_RIGHT:
2131         case LFUN_WORD_LEFT:
2132         case LFUN_CHAR_FORWARD:
2133         case LFUN_CHAR_FORWARD_SELECT:
2134         case LFUN_CHAR_BACKWARD:
2135         case LFUN_CHAR_BACKWARD_SELECT:
2136         case LFUN_CHAR_LEFT:
2137         case LFUN_CHAR_LEFT_SELECT:
2138         case LFUN_CHAR_RIGHT:
2139         case LFUN_CHAR_RIGHT_SELECT:
2140         case LFUN_UP:
2141         case LFUN_UP_SELECT:
2142         case LFUN_DOWN:
2143         case LFUN_DOWN_SELECT:
2144         case LFUN_PARAGRAPH_UP_SELECT:
2145         case LFUN_PARAGRAPH_DOWN_SELECT:
2146         case LFUN_SCREEN_UP_SELECT:
2147         case LFUN_SCREEN_DOWN_SELECT:
2148         case LFUN_LINE_BEGIN_SELECT:
2149         case LFUN_LINE_END_SELECT:
2150         case LFUN_WORD_FORWARD_SELECT:
2151         case LFUN_WORD_BACKWARD_SELECT:
2152         case LFUN_WORD_RIGHT_SELECT:
2153         case LFUN_WORD_LEFT_SELECT:
2154         case LFUN_WORD_SELECT:
2155         case LFUN_PARAGRAPH_UP:
2156         case LFUN_PARAGRAPH_DOWN:
2157         case LFUN_LINE_BEGIN:
2158         case LFUN_LINE_BREAK:
2159         case LFUN_LINE_END:
2160         case LFUN_NEW_LINE:
2161         case LFUN_CHAR_DELETE_FORWARD:
2162         case LFUN_DELETE_FORWARD_SKIP:
2163         case LFUN_CHAR_DELETE_BACKWARD:
2164         case LFUN_DELETE_BACKWARD_SKIP:
2165         case LFUN_BREAK_PARAGRAPH:
2166         case LFUN_BREAK_PARAGRAPH_SKIP:
2167         case LFUN_PARAGRAPH_SPACING:
2168         case LFUN_INSET_INSERT:
2169         case LFUN_WORD_UPCASE:
2170         case LFUN_WORD_LOWCASE:
2171         case LFUN_WORD_CAPITALIZE:
2172         case LFUN_CHARS_TRANSPOSE:
2173         case LFUN_SERVER_GET_XY:
2174         case LFUN_SERVER_SET_XY:
2175         case LFUN_SERVER_GET_FONT:
2176         case LFUN_SERVER_GET_LAYOUT:
2177         case LFUN_LAYOUT:
2178         case LFUN_DATE_INSERT:
2179         case LFUN_SELF_INSERT:
2180         case LFUN_LINE_INSERT:
2181         case LFUN_NEWPAGE_INSERT:
2182         case LFUN_PAGEBREAK_INSERT:
2183         case LFUN_CLEARPAGE_INSERT:
2184         case LFUN_CLEARDOUBLEPAGE_INSERT:
2185         case LFUN_MATH_DISPLAY:
2186         case LFUN_MATH_IMPORT_SELECTION:
2187         case LFUN_MATH_MODE:
2188         case LFUN_MATH_MACRO:
2189         case LFUN_MATH_MATRIX:
2190         case LFUN_MATH_DELIM:
2191         case LFUN_MATH_BIGDELIM:
2192         case LFUN_MATH_INSERT:
2193         case LFUN_MATH_SUBSCRIPT:
2194         case LFUN_MATH_SUPERSCRIPT:
2195         case LFUN_FONT_DEFAULT:
2196         case LFUN_FONT_UNDERLINE:
2197         case LFUN_FONT_SIZE:
2198         case LFUN_LANGUAGE:
2199         case LFUN_FONT_FREE_APPLY:
2200         case LFUN_FONT_FREE_UPDATE:
2201         case LFUN_LAYOUT_PARAGRAPH:
2202         case LFUN_PARAGRAPH_UPDATE:
2203         case LFUN_ACCENT_UMLAUT:
2204         case LFUN_ACCENT_CIRCUMFLEX:
2205         case LFUN_ACCENT_GRAVE:
2206         case LFUN_ACCENT_ACUTE:
2207         case LFUN_ACCENT_TILDE:
2208         case LFUN_ACCENT_CEDILLA:
2209         case LFUN_ACCENT_MACRON:
2210         case LFUN_ACCENT_DOT:
2211         case LFUN_ACCENT_UNDERDOT:
2212         case LFUN_ACCENT_UNDERBAR:
2213         case LFUN_ACCENT_CARON:
2214         case LFUN_ACCENT_SPECIAL_CARON:
2215         case LFUN_ACCENT_BREVE:
2216         case LFUN_ACCENT_TIE:
2217         case LFUN_ACCENT_HUNGARIAN_UMLAUT:
2218         case LFUN_ACCENT_CIRCLE:
2219         case LFUN_ACCENT_OGONEK:
2220         case LFUN_THESAURUS_ENTRY:
2221         case LFUN_PARAGRAPH_PARAMS_APPLY:
2222         case LFUN_PARAGRAPH_PARAMS:
2223         case LFUN_ESCAPE:
2224         case LFUN_BUFFER_END:
2225         case LFUN_BUFFER_BEGIN:
2226         case LFUN_BUFFER_BEGIN_SELECT:
2227         case LFUN_BUFFER_END_SELECT:
2228         case LFUN_UNICODE_INSERT:
2229                 // these are handled in our dispatch()
2230                 enable = true;
2231                 break;
2232
2233         default:
2234                 return false;
2235         }
2236
2237         if (code != NO_CODE
2238             && (cur.empty() || !cur.inset().insetAllowed(code)))
2239                 enable = false;
2240
2241         flag.enabled(enable);
2242         return true;
2243 }
2244
2245
2246 void Text::pasteString(Cursor & cur, docstring const & clip,
2247                 bool asParagraphs)
2248 {
2249         cur.clearSelection();
2250         if (!clip.empty()) {
2251                 cur.recordUndo();
2252                 if (asParagraphs)
2253                         insertStringAsParagraphs(cur, clip);
2254                 else
2255                         insertStringAsLines(cur, clip);
2256         }
2257 }
2258
2259 } // namespace lyx