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 #include "insets/InsetGraphics.h"
  61 #include "insets/InsetGraphicsParams.h"
  62
  63 #include "support/convert.h"
  64 #include "support/debug.h"
  65 #include "support/gettext.h"
  66 #include "support/lstrings.h"
  67 #include "support/lyxtime.h"
  68
  69 #include "mathed/InsetMathHull.h"
  70 #include "mathed/MathMacroTemplate.h"
  71
  72 #include <boost/next_prior.hpp>
  73
  74 #include <clocale>
  75 #include <sstream>
  76
  77 using namespace std;
  78 using namespace lyx::support;
  79
  80 namespace lyx {
  81
  82 using cap::copySelection;
  83 using cap::cutSelection;
  84 using cap::pasteFromStack;
  85 using cap::pasteClipboardText;
  86 using cap::pasteClipboardGraphics;
  87 using cap::replaceSelection;
  88
  89 // globals...
  90 static Font freefont(ignore_font, ignore_language);
  91 static bool toggleall = false;
  92
  93 static void toggleAndShow(Cursor & cur, Text * text,
  94         Font const & font, bool toggleall = true)
  95 {
  96         text->toggleFree(cur, font, toggleall);
  97
  98         if (font.language() != ignore_language ||
  99             font.fontInfo().number() != FONT_IGNORE) {
 100                 TextMetrics const & tm = cur.bv().textMetrics(text);
 101                 if (cur.boundary() != tm.isRTLBoundary(cur.pit(), cur.pos(),
 102                                                        cur.real_current_font))
 103                         text->setCursor(cur, cur.pit(), cur.pos(),
 104                                         false, !cur.boundary());
 105         }
 106 }
 107
 108
 109 static void moveCursor(Cursor & cur, bool selecting)
 110 {
 111         if (selecting || cur.mark())
 112                 cur.setSelection();
 113 }
 114
 115
 116 static void finishChange(Cursor & cur, bool selecting)
 117 {
 118         cur.finishUndo();
 119         moveCursor(cur, selecting);
 120 }
 121
 122
 123 static void mathDispatch(Cursor & cur, FuncRequest const & cmd, bool display)
 124 {
 125         cur.recordUndo();
 126         docstring sel = cur.selectionAsString(false);
 127
 128         // It may happen that sel is empty but there is a selection
 129         replaceSelection(cur);
 130
 131         if (sel.empty()) {
 132 #ifdef ENABLE_ASSERTIONS
 133                 const int old_pos = cur.pos();
 134 #endif
 135                 cur.insert(new InsetMathHull(hullSimple));
 136 #ifdef ENABLE_ASSERTIONS
 137                 LASSERT(old_pos == cur.pos(), /**/);
 138 #endif
 139                 cur.nextInset()->edit(cur, true);
 140                 // don't do that also for LFUN_MATH_MODE
 141                 // unless you want end up with always changing
 142                 // to mathrm when opening an inlined inset --
 143                 // I really hate "LyXfunc overloading"...
 144                 if (display)
 145                         cur.dispatch(FuncRequest(LFUN_MATH_DISPLAY));
 146                 // Avoid an unnecessary undo step if cmd.argument
 147                 // is empty
 148                 if (!cmd.argument().empty())
 149                         cur.dispatch(FuncRequest(LFUN_MATH_INSERT,
 150                                                  cmd.argument()));
 151         } else {
 152                 // create a macro if we see "\\newcommand"
 153                 // somewhere, and an ordinary formula
 154                 // otherwise
 155                 if (sel.find(from_ascii("\\newcommand")) == string::npos
 156                                 && sel.find(from_ascii("\\newlyxcommand")) == string::npos
 157                                 && sel.find(from_ascii("\\def")) == string::npos)
 158                 {
 159                         InsetMathHull * formula = new InsetMathHull;
 160                         istringstream is(to_utf8(sel));
 161                         Lexer lex;
 162                         lex.setStream(is);
 163                         formula->read(lex);
 164                         if (formula->getType() == hullNone)
 165                                 // Don't create pseudo formulas if
 166                                 // delimiters are left out
 167                                 formula->mutate(hullSimple);
 168                         cur.insert(formula);
 169                 } else {
 170                         cur.insert(new MathMacroTemplate(sel));
 171                 }
 172         }
 173         cur.message(from_utf8(N_("Math editor mode")));
 174 }
 175
 176
 177 static void specialChar(Cursor & cur, InsetSpecialChar::Kind kind)
 178 {
 179         cur.recordUndo();
 180         cap::replaceSelection(cur);
 181         cur.insert(new InsetSpecialChar(kind));
 182         cur.posForward();
 183 }
 184
 185
 186 static bool doInsertInset(Cursor & cur, Text * text,
 187         FuncRequest const & cmd, bool edit, bool pastesel)
 188 {
 189         Buffer & buffer = cur.bv().buffer();
 190         BufferParams const & bparams = buffer.params();
 191         Inset * inset = createInset(buffer, cmd);
 192         if (!inset)
 193                 return false;
 194
 195         if (InsetCollapsable * ci = inset->asInsetCollapsable())
 196                 ci->setLayout(bparams);
 197
 198         cur.recordUndo();
 199         if (cmd.action == LFUN_INDEX_INSERT) {
 200                 docstring ds = subst(text->getStringToIndex(cur), '\n', ' ');
 201                 text->insertInset(cur, inset);
 202                 if (edit)
 203                         inset->edit(cur, true);
 204                 // Now put this into inset
 205                 static_cast<InsetCollapsable *>(inset)->text().insertStringAsParagraphs(cur, ds);
 206                 return true;
 207         }
 208
 209         bool gotsel = false;
 210         if (cur.selection()) {
 211                 cutSelection(cur, false, pastesel);
 212                 cur.clearSelection();
 213                 gotsel = true;
 214         }
 215         text->insertInset(cur, inset);
 216
 217         if (edit)
 218                 inset->edit(cur, true);
 219
 220         if (!gotsel || !pastesel)
 221                 return true;
 222
 223         pasteFromStack(cur, cur.buffer().errorList("Paste"), 0);
 224         cur.buffer().errors("Paste");
 225         cur.clearSelection(); // bug 393
 226         cur.finishUndo();
 227         InsetText * insetText = dynamic_cast<InsetText *>(inset);
 228         if (insetText && !insetText->allowMultiPar() || cur.lastpit() == 0) {
 229                 // reset first par to default
 230                 cur.text()->paragraphs().begin()
 231                         ->setPlainOrDefaultLayout(bparams.documentClass());
 232                 cur.pos() = 0;
 233                 cur.pit() = 0;
 234                 // Merge multiple paragraphs -- hack
 235                 while (cur.lastpit() > 0)
 236                         mergeParagraph(bparams, cur.text()->paragraphs(), 0);
 237                 cur.leaveInset(*inset);
 238         } else {
 239                 cur.leaveInset(*inset);
 240                 // reset surrounding par to default
 241                 docstring const layoutname = insetText->usePlainLayout()
 242                         ? bparams.documentClass().plainLayoutName()
 243                         : bparams.documentClass().defaultLayoutName();
 244                 text->setLayout(cur, layoutname);
 245         }
 246
 247         return true;
 248 }
 249
 250
 251 string const freefont2string()
 252 {
 253         return freefont.toString(toggleall);
 254 }
 255
 256
 257 /// the type of outline operation
 258 enum OutlineOp {
 259         OutlineUp, // Move this header with text down
 260         OutlineDown,   // Move this header with text up
 261         OutlineIn, // Make this header deeper
 262         OutlineOut // Make this header shallower
 263 };
 264
 265
 266 static void outline(OutlineOp mode, Cursor & cur)
 267 {
 268         Buffer & buf = cur.buffer();
 269         pit_type & pit = cur.pit();
 270         ParagraphList & pars = buf.text().paragraphs();
 271         ParagraphList::iterator bgn = pars.begin();
 272         // The first paragraph of the area to be copied:
 273         ParagraphList::iterator start = boost::next(bgn, pit);
 274         // The final paragraph of area to be copied:
 275         ParagraphList::iterator finish = start;
 276         ParagraphList::iterator end = pars.end();
 277
 278         DocumentClass const & tc = buf.params().documentClass();
 279
 280         int const thistoclevel = start->layout().toclevel;
 281         int toclevel;
 282
 283         // Move out (down) from this section header
 284         if (finish != end)
 285                 ++finish;
 286         // Seek the one (on same level) below
 287         for (; finish != end; ++finish) {
 288                 toclevel = finish->layout().toclevel;
 289                 if (toclevel != Layout::NOT_IN_TOC && toclevel <= thistoclevel) {
 290                         break;
 291                 }
 292         }
 293
 294         switch (mode) {
 295                 case OutlineUp: {
 296                         if (start == pars.begin())
 297                                 // Nothing to move.
 298                                 return;
 299                         ParagraphList::iterator dest = start;
 300                         // Move out (up) from this header
 301                         if (dest == bgn)
 302                                 return;
 303                         // Search previous same-level header above
 304                         do {
 305                                 --dest;
 306                                 toclevel = dest->layout().toclevel;
 307                         } while(dest != bgn
 308                                 && (toclevel == Layout::NOT_IN_TOC
 309                                     || toclevel > thistoclevel));
 310                         // Not found; do nothing
 311                         if (toclevel == Layout::NOT_IN_TOC || toclevel > thistoclevel)
 312                                 return;
 313                         pit_type const newpit = distance(bgn, dest);
 314                         pit_type const len = distance(start, finish);
 315                         pit_type const deletepit = pit + len;
 316                         buf.undo().recordUndo(cur, ATOMIC_UNDO, newpit, deletepit - 1);
 317                         pars.insert(dest, start, finish);
 318                         start = boost::next(pars.begin(), deletepit);
 319                         pit = newpit;
 320                         pars.erase(start, finish);
 321                         return;
 322                 }
 323                 case OutlineDown: {
 324                         if (finish == end)
 325                                 // Nothing to move.
 326                                 return;
 327                         // Go one down from *this* header:
 328                         ParagraphList::iterator dest = boost::next(finish, 1);
 329                         // Go further down to find header to insert in front of:
 330                         for (; dest != end; ++dest) {
 331                                 toclevel = dest->layout().toclevel;
 332                                 if (toclevel != Layout::NOT_IN_TOC
 333                                     && toclevel <= thistoclevel) {
 334                                         break;
 335                                 }
 336                         }
 337                         // One such was found:
 338                         pit_type newpit = distance(bgn, dest);
 339                         pit_type const len = distance(start, finish);
 340                         buf.undo().recordUndo(cur, ATOMIC_UNDO, pit, newpit - 1);
 341                         pars.insert(dest, start, finish);
 342                         start = boost::next(bgn, pit);
 343                         pit = newpit - len;
 344                         pars.erase(start, finish);
 345                         return;
 346                 }
 347                 case OutlineIn: {
 348                         pit_type const len = distance(start, finish);
 349                         buf.undo().recordUndo(cur, ATOMIC_UNDO, pit, pit + len - 1);
 350                         for (; start != finish; ++start) {
 351                                 toclevel = start->layout().toclevel;
 352                                 if (toclevel == Layout::NOT_IN_TOC)
 353                                         continue;
 354                                 DocumentClass::const_iterator lit = tc.begin();
 355                                 DocumentClass::const_iterator len = tc.end();
 356                                 for (; lit != len; ++lit) {
 357                                         if (lit->toclevel == toclevel + 1 &&
 358                                             start->layout().labeltype == lit->labeltype) {
 359                                                 start->setLayout(*lit);
 360                                                 break;
 361                                         }
 362                                 }
 363                         }
 364                         return;
 365                 }
 366                 case OutlineOut: {
 367                         pit_type const len = distance(start, finish);
 368                         buf.undo().recordUndo(cur, ATOMIC_UNDO, pit, pit + len - 1);
 369                         for (; start != finish; ++start) {
 370                                 toclevel = start->layout().toclevel;
 371                                 if (toclevel == Layout::NOT_IN_TOC)
 372                                         continue;
 373                                 DocumentClass::const_iterator lit = tc.begin();
 374                                 DocumentClass::const_iterator len = tc.end();
 375                                 for (; lit != len; ++lit) {
 376                                         if (lit->toclevel == toclevel - 1 &&
 377                                                 start->layout().labeltype == lit->labeltype) {
 378                                                         start->setLayout(*lit);
 379                                                         break;
 380                                         }
 381                                 }
 382                         }
 383                         return;
 384                 }
 385         }
 386 }
 387
 388
 389 void Text::number(Cursor & cur)
 390 {
 391         FontInfo font = ignore_font;
 392         font.setNumber(FONT_TOGGLE);
 393         toggleAndShow(cur, this, Font(font, ignore_language));
 394 }
 395
 396
 397 bool Text::isRTL(Buffer const & buffer, Paragraph const & par) const
 398 {
 399         return par.isRTL(buffer.params());
 400 }
 401
 402
 403 void Text::dispatch(Cursor & cur, FuncRequest & cmd)
 404 {
 405         LYXERR(Debug::ACTION, "Text::dispatch: cmd: " << cmd);
 406
 407         BufferView * bv = &cur.bv();
 408         TextMetrics & tm = bv->textMetrics(this);
 409         if (!tm.contains(cur.pit()))
 410                 lyx::dispatch(FuncRequest(LFUN_SCREEN_RECENTER));
 411
 412         // FIXME: We use the update flag to indicates wether a singlePar or a
 413         // full screen update is needed. We reset it here but shall we restore it
 414         // at the end?
 415         cur.noUpdate();
 416
 417         LASSERT(cur.text() == this, /**/);
 418         CursorSlice oldTopSlice = cur.top();
 419         bool oldBoundary = cur.boundary();
 420         bool sel = cur.selection();
 421         // Signals that, even if needsUpdate == false, an update of the
 422         // cursor paragraph is required
 423         bool singleParUpdate = lyxaction.funcHasFlag(cmd.action,
 424                 LyXAction::SingleParUpdate);
 425         // Signals that a full-screen update is required
 426         bool needsUpdate = !(lyxaction.funcHasFlag(cmd.action,
 427                 LyXAction::NoUpdate) || singleParUpdate);
 428
 429         switch (cmd.action) {
 430
 431         case LFUN_PARAGRAPH_MOVE_DOWN: {
 432                 pit_type const pit = cur.pit();
 433                 recUndo(cur, pit, pit + 1);
 434                 cur.finishUndo();
 435                 swap(pars_[pit], pars_[pit + 1]);
 436                 updateLabels(cur.buffer());
 437                 needsUpdate = true;
 438                 ++cur.pit();
 439                 break;
 440         }
 441
 442         case LFUN_PARAGRAPH_MOVE_UP: {
 443                 pit_type const pit = cur.pit();
 444                 recUndo(cur, pit - 1, pit);
 445                 cur.finishUndo();
 446                 swap(pars_[pit], pars_[pit - 1]);
 447                 updateLabels(cur.buffer());
 448                 --cur.pit();
 449                 needsUpdate = true;
 450                 break;
 451         }
 452
 453         case LFUN_APPENDIX: {
 454                 Paragraph & par = cur.paragraph();
 455                 bool start = !par.params().startOfAppendix();
 456
 457 // FIXME: The code below only makes sense at top level.
 458 // Should LFUN_APPENDIX be restricted to top-level paragraphs?
 459                 // ensure that we have only one start_of_appendix in this document
 460                 // FIXME: this don't work for multipart document!
 461                 for (pit_type tmp = 0, end = pars_.size(); tmp != end; ++tmp) {
 462                         if (pars_[tmp].params().startOfAppendix()) {
 463                                 recUndo(cur, tmp);
 464                                 pars_[tmp].params().startOfAppendix(false);
 465                                 break;
 466                         }
 467                 }
 468
 469                 cur.recordUndo();
 470                 par.params().startOfAppendix(start);
 471
 472                 // we can set the refreshing parameters now
 473                 updateLabels(cur.buffer());
 474                 break;
 475         }
 476
 477         case LFUN_WORD_DELETE_FORWARD:
 478                 if (cur.selection()) {
 479                         cutSelection(cur, true, false);
 480                 } else
 481                         deleteWordForward(cur);
 482                 finishChange(cur, false);
 483                 break;
 484
 485         case LFUN_WORD_DELETE_BACKWARD:
 486                 if (cur.selection()) {
 487                         cutSelection(cur, true, false);
 488                 } else
 489                         deleteWordBackward(cur);
 490                 finishChange(cur, false);
 491                 break;
 492
 493         case LFUN_LINE_DELETE:
 494                 if (cur.selection()) {
 495                         cutSelection(cur, true, false);
 496                 } else
 497                         tm.deleteLineForward(cur);
 498                 finishChange(cur, false);
 499                 break;
 500
 501         case LFUN_BUFFER_BEGIN:
 502         case LFUN_BUFFER_BEGIN_SELECT:
 503                 needsUpdate |= cur.selHandle(cmd.action == LFUN_BUFFER_BEGIN_SELECT);
 504                 if (cur.depth() == 1) {
 505                         needsUpdate |= cursorTop(cur);
 506                 } else {
 507                         cur.undispatched();
 508                 }
 509                 cur.updateFlags(Update::FitCursor);
 510                 break;
 511
 512         case LFUN_BUFFER_END:
 513         case LFUN_BUFFER_END_SELECT:
 514                 needsUpdate |= cur.selHandle(cmd.action == LFUN_BUFFER_END_SELECT);
 515                 if (cur.depth() == 1) {
 516                         needsUpdate |= cursorBottom(cur);
 517                 } else {
 518                         cur.undispatched();
 519                 }
 520                 cur.updateFlags(Update::FitCursor);
 521                 break;
 522
 523         case LFUN_CHAR_FORWARD:
 524         case LFUN_CHAR_FORWARD_SELECT:
 525                 //LYXERR0(" LFUN_CHAR_FORWARD[SEL]:\n" << cur);
 526                 needsUpdate |= cur.selHandle(cmd.action == LFUN_CHAR_FORWARD_SELECT);
 527                 needsUpdate |= cursorForward(cur);
 528
 529                 if (!needsUpdate && oldTopSlice == cur.top()
 530                                 && cur.boundary() == oldBoundary) {
 531                         cur.undispatched();
 532                         cmd = FuncRequest(LFUN_FINISHED_FORWARD);
 533                 }
 534                 break;
 535
 536         case LFUN_CHAR_BACKWARD:
 537         case LFUN_CHAR_BACKWARD_SELECT:
 538                 //lyxerr << "handle LFUN_CHAR_BACKWARD[_SELECT]:\n" << cur << endl;
 539                 needsUpdate |= cur.selHandle(cmd.action == LFUN_CHAR_BACKWARD_SELECT);
 540                 needsUpdate |= cursorBackward(cur);
 541
 542                 if (!needsUpdate && oldTopSlice == cur.top()
 543                         && cur.boundary() == oldBoundary) {
 544                         cur.undispatched();
 545                         cmd = FuncRequest(LFUN_FINISHED_BACKWARD);
 546                 }
 547                 break;
 548
 549         case LFUN_CHAR_LEFT:
 550         case LFUN_CHAR_LEFT_SELECT:
 551                 if (lyxrc.visual_cursor) {
 552                         needsUpdate |= cur.selHandle(cmd.action == LFUN_CHAR_LEFT_SELECT);
 553                         needsUpdate |= cursorVisLeft(cur);
 554                         if (!needsUpdate && oldTopSlice == cur.top()
 555                                         && cur.boundary() == oldBoundary) {
 556                                 cur.undispatched();
 557                                 cmd = FuncRequest(LFUN_FINISHED_LEFT);
 558                         }
 559                 } else {
 560                         if (reverseDirectionNeeded(cur)) {
 561                                 cmd.action = cmd.action == LFUN_CHAR_LEFT_SELECT ?
 562                                         LFUN_CHAR_FORWARD_SELECT : LFUN_CHAR_FORWARD;
 563                         } else {
 564                                 cmd.action = cmd.action == LFUN_CHAR_LEFT_SELECT ?
 565                                         LFUN_CHAR_BACKWARD_SELECT : LFUN_CHAR_BACKWARD;
 566                         }
 567                         dispatch(cur, cmd);
 568                         return;
 569                 }
 570                 break;
 571
 572         case LFUN_CHAR_RIGHT:
 573         case LFUN_CHAR_RIGHT_SELECT:
 574                 if (lyxrc.visual_cursor) {
 575                         needsUpdate |= cur.selHandle(cmd.action == LFUN_CHAR_RIGHT_SELECT);
 576                         needsUpdate |= cursorVisRight(cur);
 577                         if (!needsUpdate && oldTopSlice == cur.top()
 578                                         && cur.boundary() == oldBoundary) {
 579                                 cur.undispatched();
 580                                 cmd = FuncRequest(LFUN_FINISHED_RIGHT);
 581                         }
 582                 } else {
 583                         if (reverseDirectionNeeded(cur)) {
 584                                 cmd.action = cmd.action == LFUN_CHAR_RIGHT_SELECT ?
 585                                         LFUN_CHAR_BACKWARD_SELECT : LFUN_CHAR_BACKWARD;
 586                         } else {
 587                                 cmd.action = cmd.action == LFUN_CHAR_RIGHT_SELECT ?
 588                                         LFUN_CHAR_FORWARD_SELECT : LFUN_CHAR_FORWARD;
 589                         }
 590                         dispatch(cur, cmd);
 591                         return;
 592                 }
 593                 break;
 594
 595
 596         case LFUN_UP_SELECT:
 597         case LFUN_DOWN_SELECT:
 598         case LFUN_UP:
 599         case LFUN_DOWN: {
 600                 // stop/start the selection
 601                 bool select = cmd.action == LFUN_DOWN_SELECT ||
 602                         cmd.action == LFUN_UP_SELECT;
 603                 cur.selHandle(select);
 604
 605                 // move cursor up/down
 606                 bool up = cmd.action == LFUN_UP_SELECT || cmd.action == LFUN_UP;
 607                 bool const successful = cur.upDownInText(up, needsUpdate);
 608                 if (successful) {
 609                         // redraw if you leave mathed (for the decorations)
 610                         needsUpdate |= cur.beforeDispatchCursor().inMathed();
 611                 } else
 612                         cur.undispatched();
 613
 614                 break;
 615         }
 616
 617         case LFUN_PARAGRAPH_UP:
 618         case LFUN_PARAGRAPH_UP_SELECT:
 619                 needsUpdate |= cur.selHandle(cmd.action == LFUN_PARAGRAPH_UP_SELECT);
 620                 needsUpdate |= cursorUpParagraph(cur);
 621                 break;
 622
 623         case LFUN_PARAGRAPH_DOWN:
 624         case LFUN_PARAGRAPH_DOWN_SELECT:
 625                 needsUpdate |= cur.selHandle(cmd.action == LFUN_PARAGRAPH_DOWN_SELECT);
 626                 needsUpdate |= cursorDownParagraph(cur);
 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                 if (lyxrc.visual_cursor) {
 644                         needsUpdate |= cur.selHandle(cmd.action == LFUN_WORD_RIGHT_SELECT);
 645                         needsUpdate |= cursorVisRightOneWord(cur);
 646                         if (!needsUpdate && oldTopSlice == cur.top()
 647                                         && cur.boundary() == oldBoundary) {
 648                                 cur.undispatched();
 649                                 cmd = FuncRequest(LFUN_FINISHED_RIGHT);
 650                         }
 651                 } else {
 652                         if (reverseDirectionNeeded(cur)) {
 653                                 cmd.action = cmd.action == LFUN_WORD_RIGHT_SELECT ?
 654                                                 LFUN_WORD_BACKWARD_SELECT : LFUN_WORD_BACKWARD;
 655                         } else {
 656                                 cmd.action = cmd.action == LFUN_WORD_RIGHT_SELECT ?
 657                                                 LFUN_WORD_FORWARD_SELECT : LFUN_WORD_FORWARD;
 658                         }
 659                         dispatch(cur, cmd);
 660                         return;
 661                 }
 662                 break;
 663
 664         case LFUN_WORD_FORWARD:
 665         case LFUN_WORD_FORWARD_SELECT:
 666                 needsUpdate |= cur.selHandle(cmd.action == LFUN_WORD_FORWARD_SELECT);
 667                 needsUpdate |= cursorForwardOneWord(cur);
 668                 break;
 669
 670         case LFUN_WORD_LEFT:
 671         case LFUN_WORD_LEFT_SELECT:
 672                 if (lyxrc.visual_cursor) {
 673                         needsUpdate |= cur.selHandle(cmd.action == LFUN_WORD_LEFT_SELECT);
 674                         needsUpdate |= cursorVisLeftOneWord(cur);
 675                         if (!needsUpdate && oldTopSlice == cur.top()
 676                                         && cur.boundary() == oldBoundary) {
 677                                 cur.undispatched();
 678                                 cmd = FuncRequest(LFUN_FINISHED_LEFT);
 679                         }
 680                 } else {
 681                         if (reverseDirectionNeeded(cur)) {
 682                                 cmd.action = cmd.action == LFUN_WORD_LEFT_SELECT ?
 683                                                 LFUN_WORD_FORWARD_SELECT : LFUN_WORD_FORWARD;
 684                         } else {
 685                                 cmd.action = cmd.action == LFUN_WORD_LEFT_SELECT ?
 686                                                 LFUN_WORD_BACKWARD_SELECT : LFUN_WORD_BACKWARD;
 687                         }
 688                         dispatch(cur, cmd);
 689                         return;
 690                 }
 691                 break;
 692
 693         case LFUN_WORD_BACKWARD:
 694         case LFUN_WORD_BACKWARD_SELECT:
 695                 needsUpdate |= cur.selHandle(cmd.action == LFUN_WORD_BACKWARD_SELECT);
 696                 needsUpdate |= cursorBackwardOneWord(cur);
 697                 break;
 698
 699         case LFUN_WORD_SELECT: {
 700                 selectWord(cur, WHOLE_WORD);
 701                 finishChange(cur, true);
 702                 break;
 703         }
 704
 705         case LFUN_NEWLINE_INSERT: {
 706                 InsetNewlineParams inp;
 707                 docstring arg = cmd.argument();
 708                 // this avoids a double undo
 709                 // FIXME: should not be needed, ideally
 710                 if (!cur.selection())
 711                         cur.recordUndo();
 712                 cap::replaceSelection(cur);
 713                 if (arg == "linebreak")
 714                         inp.kind = InsetNewlineParams::LINEBREAK;
 715                 else
 716                         inp.kind = InsetNewlineParams::NEWLINE;
 717                 cur.insert(new InsetNewline(inp));
 718                 cur.posForward();
 719                 moveCursor(cur, false);
 720                 break;
 721         }
 722
 723         case LFUN_CHAR_DELETE_FORWARD:
 724                 if (!cur.selection()) {
 725                         if (cur.pos() == cur.paragraph().size())
 726                                 // Par boundary, force full-screen update
 727                                 singleParUpdate = false;
 728                         needsUpdate |= erase(cur);
 729                         cur.resetAnchor();
 730                         // It is possible to make it a lot faster still
 731                         // just comment out the line below...
 732                 } else {
 733                         cutSelection(cur, true, false);
 734                         singleParUpdate = false;
 735                 }
 736                 moveCursor(cur, false);
 737                 break;
 738
 739         case LFUN_CHAR_DELETE_BACKWARD:
 740                 if (!cur.selection()) {
 741                         if (bv->getIntl().getTransManager().backspace()) {
 742                                 // Par boundary, full-screen update
 743                                 if (cur.pos() == 0)
 744                                         singleParUpdate = false;
 745                                 needsUpdate |= backspace(cur);
 746                                 cur.resetAnchor();
 747                                 // It is possible to make it a lot faster still
 748                                 // just comment out the line below...
 749                         }
 750                 } else {
 751                         cutSelection(cur, true, false);
 752                         singleParUpdate = false;
 753                 }
 754                 break;
 755
 756         case LFUN_BREAK_PARAGRAPH:
 757                 cap::replaceSelection(cur);
 758                 breakParagraph(cur, cmd.argument() == "inverse");
 759                 cur.resetAnchor();
 760                 break;
 761
 762         // TODO
 763         // With the creation of LFUN_PARAGRAPH_PARAMS, this is now redundant,
 764         // as its duties can be performed there. Should it be removed??
 765         // FIXME For now, it can just dispatch LFUN_PARAGRAPH_PARAMS...
 766         case LFUN_PARAGRAPH_SPACING: {
 767                 Paragraph & par = cur.paragraph();
 768                 Spacing::Space cur_spacing = par.params().spacing().getSpace();
 769                 string cur_value = "1.0";
 770                 if (cur_spacing == Spacing::Other)
 771                         cur_value = par.params().spacing().getValueAsString();
 772
 773                 istringstream is(to_utf8(cmd.argument()));
 774                 string tmp;
 775                 is >> tmp;
 776                 Spacing::Space new_spacing = cur_spacing;
 777                 string new_value = cur_value;
 778                 if (tmp.empty()) {
 779                         lyxerr << "Missing argument to `paragraph-spacing'"
 780                                << endl;
 781                 } else if (tmp == "single") {
 782                         new_spacing = Spacing::Single;
 783                 } else if (tmp == "onehalf") {
 784                         new_spacing = Spacing::Onehalf;
 785                 } else if (tmp == "double") {
 786                         new_spacing = Spacing::Double;
 787                 } else if (tmp == "other") {
 788                         new_spacing = Spacing::Other;
 789                         string tmpval = "0.0";
 790                         is >> tmpval;
 791                         lyxerr << "new_value = " << tmpval << endl;
 792                         if (tmpval != "0.0")
 793                                 new_value = tmpval;
 794                 } else if (tmp == "default") {
 795                         new_spacing = Spacing::Default;
 796                 } else {
 797                         lyxerr << to_utf8(_("Unknown spacing argument: "))
 798                                << to_utf8(cmd.argument()) << endl;
 799                 }
 800                 if (cur_spacing != new_spacing || cur_value != new_value)
 801                         par.params().spacing(Spacing(new_spacing, new_value));
 802                 break;
 803         }
 804
 805         case LFUN_INSET_INSERT: {
 806                 cur.recordUndo();
 807                 Inset * inset = createInset(bv->buffer(), cmd);
 808                 if (inset) {
 809                         // FIXME (Abdel 01/02/2006):
 810                         // What follows would be a partial fix for bug 2154:
 811                         //   http://bugzilla.lyx.org/show_bug.cgi?id=2154
 812                         // This automatically put the label inset _after_ a
 813                         // numbered section. It should be possible to extend the mechanism
 814                         // to any kind of LateX environement.
 815                         // The correct way to fix that bug would be at LateX generation.
 816                         // I'll let the code here for reference as it could be used for some
 817                         // other feature like "automatic labelling".
 818                         /*
 819                         Paragraph & par = pars_[cur.pit()];
 820                         if (inset->lyxCode() == LABEL_CODE
 821                                 && par.layout().labeltype == LABEL_COUNTER) {
 822                                 // Go to the end of the paragraph
 823                                 // Warning: Because of Change-Tracking, the last
 824                                 // position is 'size()' and not 'size()-1':
 825                                 cur.pos() = par.size();
 826                                 // Insert a new paragraph
 827                                 FuncRequest fr(LFUN_BREAK_PARAGRAPH);
 828                                 dispatch(cur, fr);
 829                         }
 830                         */
 831                         if (cur.selection())
 832                                 cutSelection(cur, true, false);
 833                         cur.insert(inset);
 834                         cur.posForward();
 835                 }
 836                 break;
 837         }
 838
 839         case LFUN_INSET_DISSOLVE:
 840                 needsUpdate |= dissolveInset(cur);
 841                 break;
 842
 843         case LFUN_INSET_SETTINGS: {
 844                 Inset & inset = cur.inset();
 845                 if (cmd.getArg(0) == insetName(inset.lyxCode())) {
 846                         // This inset dialog has been explicitely requested.
 847                         inset.showInsetDialog(bv);
 848                         break;
 849                 }
 850                 // else, if there is an inset at the cursor, access this
 851                 Inset * next_inset = cur.nextInset();
 852                 if (next_inset) {
 853                         next_inset->showInsetDialog(bv);
 854                         break;
 855                 }
 856                 // if not then access the underlying inset.
 857                 inset.showInsetDialog(bv);
 858                 break;
 859         }
 860
 861         case LFUN_SET_GRAPHICS_GROUP: {
 862                 InsetGraphics * ins = graphics::getCurrentGraphicsInset(cur);
 863                 if (!ins)
 864                         break;
 865
 866                 cur.recordUndoFullDocument();
 867
 868                 string id = to_utf8(cmd.argument());
 869                 string grp = graphics::getGroupParams(bv->buffer(), id);
 870                 InsetGraphicsParams tmp, inspar = ins->getParams();
 871
 872                 if (id.empty())
 873                         inspar.groupId = to_utf8(cmd.argument());
 874                 else {
 875                         InsetGraphics::string2params(grp, bv->buffer(), tmp);
 876                         tmp.filename = inspar.filename;
 877                         inspar = tmp;
 878                 }
 879
 880                 ins->setParams(inspar);
 881         }
 882
 883         case LFUN_SPACE_INSERT:
 884                 if (cur.paragraph().layout().free_spacing)
 885                         insertChar(cur, ' ');
 886                 else {
 887                         doInsertInset(cur, this, cmd, false, false);
 888                         cur.posForward();
 889                 }
 890                 moveCursor(cur, false);
 891                 break;
 892
 893         case LFUN_SPECIALCHAR_INSERT: {
 894                 string const name = to_utf8(cmd.argument());
 895                 if (name == "hyphenation")
 896                         specialChar(cur, InsetSpecialChar::HYPHENATION);
 897                 else if (name == "ligature-break")
 898                         specialChar(cur, InsetSpecialChar::LIGATURE_BREAK);
 899                 else if (name == "slash")
 900                         specialChar(cur, InsetSpecialChar::SLASH);
 901                 else if (name == "nobreakdash")
 902                         specialChar(cur, InsetSpecialChar::NOBREAKDASH);
 903                 else if (name == "dots")
 904                         specialChar(cur, InsetSpecialChar::LDOTS);
 905                 else if (name == "end-of-sentence")
 906                         specialChar(cur, InsetSpecialChar::END_OF_SENTENCE);
 907                 else if (name == "menu-separator")
 908                         specialChar(cur, InsetSpecialChar::MENU_SEPARATOR);
 909                 else if (name.empty())
 910                         lyxerr << "LyX function 'specialchar-insert' needs an argument." << endl;
 911                 else
 912                         lyxerr << "Wrong argument for LyX function 'specialchar-insert'." << endl;
 913                 break;
 914         }
 915
 916         case LFUN_WORD_UPCASE:
 917                 changeCase(cur, text_uppercase);
 918                 break;
 919
 920         case LFUN_WORD_LOWCASE:
 921                 changeCase(cur, text_lowercase);
 922                 break;
 923
 924         case LFUN_WORD_CAPITALIZE:
 925                 changeCase(cur, text_capitalization);
 926                 break;
 927
 928         case LFUN_CHARS_TRANSPOSE:
 929                 charsTranspose(cur);
 930                 break;
 931
 932         case LFUN_PASTE: {
 933                 cur.message(_("Paste"));
 934                 cap::replaceSelection(cur);
 935
 936                 // without argument?
 937                 string const arg = to_utf8(cmd.argument());
 938                 if (arg.empty()) {
 939                         if (theClipboard().isInternal())
 940                                 pasteFromStack(cur, bv->buffer().errorList("Paste"), 0);
 941                         else if (theClipboard().hasGraphicsContents())
 942                                 pasteClipboardGraphics(cur, bv->buffer().errorList("Paste"));
 943                         else
 944                                 pasteClipboardText(cur, bv->buffer().errorList("Paste"));
 945                 } else if (isStrUnsignedInt(arg)) {
 946                         // we have a numerical argument
 947                         pasteFromStack(cur, bv->buffer().errorList("Paste"),
 948                                        convert<unsigned int>(arg));
 949                 } else {
 950                         Clipboard::GraphicsType type = Clipboard::AnyGraphicsType;
 951                         if (arg == "pdf")
 952                                 type = Clipboard::PdfGraphicsType;
 953                         else if (arg == "png")
 954                                 type = Clipboard::PngGraphicsType;
 955                         else if (arg == "jpeg")
 956                                 type = Clipboard::JpegGraphicsType;
 957                         else if (arg == "linkback")
 958                                 type = Clipboard::LinkBackGraphicsType;
 959                         else
 960                                 LASSERT(false, /**/);
 961
 962                         pasteClipboardGraphics(cur, bv->buffer().errorList("Paste"), type);
 963                 }
 964
 965                 bv->buffer().errors("Paste");
 966                 cur.clearSelection(); // bug 393
 967                 cur.finishUndo();
 968                 break;
 969         }
 970
 971         case LFUN_CUT:
 972                 cutSelection(cur, true, true);
 973                 cur.message(_("Cut"));
 974                 break;
 975
 976         case LFUN_COPY:
 977                 copySelection(cur);
 978                 cur.message(_("Copy"));
 979                 break;
 980
 981         case LFUN_SERVER_GET_XY:
 982                 cur.message(from_utf8(
 983                         convert<string>(tm.cursorX(cur.top(), cur.boundary()))
 984                         + ' ' + convert<string>(tm.cursorY(cur.top(), cur.boundary()))));
 985                 break;
 986
 987         case LFUN_SERVER_SET_XY: {
 988                 int x = 0;
 989                 int y = 0;
 990                 istringstream is(to_utf8(cmd.argument()));
 991                 is >> x >> y;
 992                 if (!is)
 993                         lyxerr << "SETXY: Could not parse coordinates in '"
 994                                << to_utf8(cmd.argument()) << endl;
 995                 else
 996                         tm.setCursorFromCoordinates(cur, x, y);
 997                 break;
 998         }
 999
1000         case LFUN_SERVER_GET_LAYOUT:
1001                 cur.message(cur.paragraph().layout().name());
1002                 break;
1003
1004         case LFUN_LAYOUT: {
1005                 docstring layout = cmd.argument();
1006                 LYXERR(Debug::INFO, "LFUN_LAYOUT: (arg) " << to_utf8(layout));
1007
1008                 Paragraph const & para = cur.paragraph();
1009                 docstring const old_layout = para.layout().name();
1010                 DocumentClass const & tclass = bv->buffer().params().documentClass();
1011
1012                 if (layout.empty())
1013                         layout = tclass.defaultLayoutName();
1014
1015                 if (para.forcePlainLayout())
1016                         // in this case only the empty layout is allowed
1017                         layout = tclass.plainLayoutName();
1018                 else if (para.usePlainLayout()) {
1019                         // in this case, default layout maps to empty layout
1020                         if (layout == tclass.defaultLayoutName())
1021                                 layout = tclass.plainLayoutName();
1022                 } else {
1023                         // otherwise, the empty layout maps to the default
1024                         if (layout == tclass.plainLayoutName())
1025                                 layout = tclass.defaultLayoutName();
1026                 }
1027
1028                 bool hasLayout = tclass.hasLayout(layout);
1029
1030                 // If the entry is obsolete, use the new one instead.
1031                 if (hasLayout) {
1032                         docstring const & obs = tclass[layout].obsoleted_by();
1033                         if (!obs.empty())
1034                                 layout = obs;
1035                 }
1036
1037                 if (!hasLayout) {
1038                         cur.errorMessage(from_utf8(N_("Layout ")) + cmd.argument() +
1039                                 from_utf8(N_(" not known")));
1040                         break;
1041                 }
1042
1043                 bool change_layout = (old_layout != layout);
1044
1045                 if (!change_layout && cur.selection() &&
1046                         cur.selBegin().pit() != cur.selEnd().pit())
1047                 {
1048                         pit_type spit = cur.selBegin().pit();
1049                         pit_type epit = cur.selEnd().pit() + 1;
1050                         while (spit != epit) {
1051                                 if (pars_[spit].layout().name() != old_layout) {
1052                                         change_layout = true;
1053                                         break;
1054                                 }
1055                                 ++spit;
1056                         }
1057                 }
1058
1059                 if (change_layout)
1060                         setLayout(cur, layout);
1061
1062                 break;
1063         }
1064
1065         case LFUN_CLIPBOARD_PASTE:
1066                 cur.clearSelection();
1067                 pasteClipboardText(cur, bv->buffer().errorList("Paste"),
1068                                cmd.argument() == "paragraph");
1069                 bv->buffer().errors("Paste");
1070                 break;
1071
1072         case LFUN_PRIMARY_SELECTION_PASTE:
1073                 pasteString(cur, theSelection().get(),
1074                             cmd.argument() == "paragraph");
1075                 break;
1076
1077         case LFUN_UNICODE_INSERT: {
1078                 if (cmd.argument().empty())
1079                         break;
1080                 docstring hexstring = cmd.argument();
1081                 if (isHex(hexstring)) {
1082                         char_type c = hexToInt(hexstring);
1083                         if (c >= 32 && c < 0x10ffff) {
1084                                 lyxerr << "Inserting c: " << c << endl;
1085                                 docstring s = docstring(1, c);
1086                                 lyx::dispatch(FuncRequest(LFUN_SELF_INSERT, s));
1087                         }
1088                 }
1089                 break;
1090         }
1091
1092         case LFUN_QUOTE_INSERT: {
1093                 Paragraph & par = cur.paragraph();
1094                 pos_type pos = cur.pos();
1095                 BufferParams const & bufparams = bv->buffer().params();
1096                 Layout const & style = par.layout();
1097                 if (!style.pass_thru
1098                     && par.getFontSettings(bufparams, pos).language()->lang() != "hebrew") {
1099                         // this avoids a double undo
1100                         // FIXME: should not be needed, ideally
1101                         if (!cur.selection())
1102                                 cur.recordUndo();
1103                         cap::replaceSelection(cur);
1104                         pos = cur.pos();
1105                         char_type c;
1106                         if (pos == 0)
1107                                 c = ' ';
1108                         else if (cur.prevInset() && cur.prevInset()->isSpace())
1109                                 c = ' ';
1110                         else
1111                                 c = par.getChar(pos - 1);
1112                         string arg = to_utf8(cmd.argument());
1113                         cur.insert(new InsetQuotes(c, bufparams.quotes_language,
1114                                 (arg == "single") ? InsetQuotes::SingleQuotes
1115                                         : InsetQuotes::DoubleQuotes));
1116                         cur.posForward();
1117                 }
1118                 else
1119                         lyx::dispatch(FuncRequest(LFUN_SELF_INSERT, "\""));
1120                 break;
1121         }
1122
1123         case LFUN_DATE_INSERT: {
1124                 string const format = cmd.argument().empty()
1125                         ? lyxrc.date_insert_format : to_utf8(cmd.argument());
1126                 string const time = formatted_time(current_time(), format);
1127                 lyx::dispatch(FuncRequest(LFUN_SELF_INSERT, time));
1128                 break;
1129         }
1130
1131         case LFUN_MOUSE_TRIPLE:
1132                 if (cmd.button() == mouse_button::button1) {
1133                         tm.cursorHome(cur);
1134                         cur.resetAnchor();
1135                         tm.cursorEnd(cur);
1136                         cur.setSelection();
1137                         bv->cursor() = cur;
1138                 }
1139                 break;
1140
1141         case LFUN_MOUSE_DOUBLE:
1142                 if (cmd.button() == mouse_button::button1) {
1143                         selectWord(cur, WHOLE_WORD_STRICT);
1144                         bv->cursor() = cur;
1145                 }
1146                 break;
1147
1148         // Single-click on work area
1149         case LFUN_MOUSE_PRESS:
1150                 // We are not marking a selection with the keyboard in any case.
1151                 cur.bv().cursor().mark() = false;
1152                 switch (cmd.button()) {
1153                 case mouse_button::button1:
1154                         // Set the cursor
1155                         if (!bv->mouseSetCursor(cur, cmd.argument() == "region-select"))
1156                                 cur.updateFlags(Update::SinglePar | Update::FitCursor);
1157                         break;
1158
1159                 case mouse_button::button2:
1160                         // Middle mouse pasting.
1161                         if (!cap::selection()) {
1162                                 // There is no local selection in the current buffer, so try to
1163                                 // paste primary selection instead.
1164                                 lyx::dispatch(FuncRequest(LFUN_PRIMARY_SELECTION_PASTE,
1165                                         "paragraph"));
1166                                 // Nothing else to do.
1167                                 cur.noUpdate();
1168                                 return;
1169                         }
1170                         // Copy the selection buffer to the clipboard stack, because we want it
1171                         // to appear in the "Edit->Paste recent" menu.
1172                         cap::copySelectionToStack();
1173                         cap::pasteSelection(bv->cursor(), bv->buffer().errorList("Paste"));
1174                         cur.updateFlags(Update::Force | Update::FitCursor);
1175                         bv->buffer().errors("Paste");
1176                         bv->buffer().markDirty();
1177                         bv->cursor().finishUndo();
1178                         break;
1179
1180                 case mouse_button::button3:
1181                         if (cur.selection()) {
1182                                 DocIterator const selbeg = cur.selectionBegin();
1183                                 DocIterator const selend = cur.selectionEnd();
1184                                 Cursor tmpcur = cur;
1185                                 tm.setCursorFromCoordinates(tmpcur, cmd.x, cmd.y);
1186                                 // Don't do anything if we right-click a selection, a selection
1187                                 // context menu should popup instead.
1188                                 if (tmpcur < selbeg || tmpcur >= selend) {
1189                                         cur.noUpdate();
1190                                         return;
1191                                 }
1192                         }
1193                         if (!bv->mouseSetCursor(cur, false)) {
1194                                 cur.updateFlags(Update::SinglePar | Update::FitCursor);
1195                                 break;
1196                         }
1197                 default:
1198                         break;
1199                 } // switch (cmd.button())
1200                 break;
1201
1202         case LFUN_MOUSE_MOTION: {
1203                 // Mouse motion with right or middle mouse do nothing for now.
1204                 if (cmd.button() != mouse_button::button1) {
1205                         cur.noUpdate();
1206                         return;
1207                 }
1208                 // ignore motions deeper nested than the real anchor
1209                 Cursor & bvcur = cur.bv().cursor();
1210                 if (!bvcur.anchor_.hasPart(cur)) {
1211                         cur.undispatched();
1212                         break;
1213                 }
1214                 CursorSlice old = bvcur.top();
1215
1216                 int const wh = bv->workHeight();
1217                 int const y = max(0, min(wh - 1, cmd.y));
1218
1219                 tm.setCursorFromCoordinates(cur, cmd.x, y);
1220                 cur.setTargetX(cmd.x);
1221                 if (cmd.y >= wh)
1222                         lyx::dispatch(FuncRequest(LFUN_DOWN_SELECT));
1223                 else if (cmd.y < 0)
1224                         lyx::dispatch(FuncRequest(LFUN_UP_SELECT));
1225                 // This is to allow jumping over large insets
1226                 if (cur.top() == old) {
1227                         if (cmd.y >= wh)
1228                                 lyx::dispatch(FuncRequest(LFUN_DOWN_SELECT));
1229                         else if (cmd.y < 0)
1230                                 lyx::dispatch(FuncRequest(LFUN_UP_SELECT));
1231                 }
1232                 // We continue with our existing selection or start a new one, so don't
1233                 // reset the anchor.
1234                 bvcur.setCursor(cur);
1235                 bvcur.selection() = true;
1236                 if (cur.top() == old) {
1237                         // We didn't move one iota, so no need to update the screen.
1238                         cur.updateFlags(Update::SinglePar | Update::FitCursor);
1239                         //cur.noUpdate();
1240                         return;
1241                 }
1242                 break;
1243         }
1244
1245         case LFUN_MOUSE_RELEASE:
1246                 switch (cmd.button()) {
1247                 case mouse_button::button1:
1248                         // Cursor was set at LFUN_MOUSE_PRESS or LFUN_MOUSE_MOTION time.
1249                         // If there is a new selection, update persistent selection;
1250                         // otherwise, single click does not clear persistent selection
1251                         // buffer.
1252                         if (cur.selection()) {
1253                                 // Finish selection.
1254                                 // If double click, cur is moved to the end of word by selectWord
1255                                 // but bvcur is current mouse position.
1256                                 cur.bv().cursor().selection() = true;
1257                         }
1258                         // FIXME: We could try to handle drag and drop of selection here.
1259                         cur.noUpdate();
1260                         return;
1261
1262                 case mouse_button::button2:
1263                         // Middle mouse pasting is handled at mouse press time,
1264                         // see LFUN_MOUSE_PRESS.
1265                         cur.noUpdate();
1266                         return;
1267
1268                 case mouse_button::button3:
1269                         // Cursor was set at LFUN_MOUSE_PRESS time.
1270                         // FIXME: If there is a selection we could try to handle a special
1271                         // drag & drop context menu.
1272                         cur.noUpdate();
1273                         return;
1274
1275                 case mouse_button::none:
1276                 case mouse_button::button4:
1277                 case mouse_button::button5:
1278                         break;
1279                 } // switch (cmd.button())
1280
1281                 break;
1282
1283         case LFUN_SELF_INSERT: {
1284                 if (cmd.argument().empty())
1285                         break;
1286
1287                 // Automatically delete the currently selected
1288                 // text and replace it with what is being
1289                 // typed in now. Depends on lyxrc settings
1290                 // "auto_region_delete", which defaults to
1291                 // true (on).
1292
1293                 if (lyxrc.auto_region_delete && cur.selection())
1294                         cutSelection(cur, false, false);
1295
1296                 cur.clearSelection();
1297                 Font const old_font = cur.real_current_font;
1298
1299                 docstring::const_iterator cit = cmd.argument().begin();
1300                 docstring::const_iterator end = cmd.argument().end();
1301                 for (; cit != end; ++cit)
1302                         bv->translateAndInsert(*cit, this, cur);
1303
1304                 cur.resetAnchor();
1305                 moveCursor(cur, false);
1306                 break;
1307         }
1308
1309         case LFUN_HYPERLINK_INSERT: {
1310                 InsetCommandParams p(HYPERLINK_CODE);
1311                 docstring content;
1312                 if (cur.selection()) {
1313                         content = cur.selectionAsString(false);
1314                         cutSelection(cur, true, false);
1315                 }
1316                 p["target"] = (cmd.argument().empty()) ?
1317                         content : cmd.argument();
1318                 string const data = InsetCommand::params2string("href", p);
1319                 if (p["target"].empty()) {
1320                         bv->showDialog("href", data);
1321                 } else {
1322                         FuncRequest fr(LFUN_INSET_INSERT, data);
1323                         dispatch(cur, fr);
1324                 }
1325                 break;
1326         }
1327
1328         case LFUN_LABEL_INSERT: {
1329                 InsetCommandParams p(LABEL_CODE);
1330                 // Try to generate a valid label
1331                 p["name"] = (cmd.argument().empty()) ?
1332                         cur.getPossibleLabel() :
1333                         cmd.argument();
1334                 string const data = InsetCommand::params2string("label", p);
1335
1336                 if (cmd.argument().empty()) {
1337                         bv->showDialog("label", data);
1338                 } else {
1339                         FuncRequest fr(LFUN_INSET_INSERT, data);
1340                         dispatch(cur, fr);
1341                 }
1342                 break;
1343         }
1344
1345         case LFUN_INFO_INSERT: {
1346                 Inset * inset;
1347                 if (cmd.argument().empty() && cur.selection()) {
1348                         // if command argument is empty use current selection as parameter.
1349                         docstring ds = cur.selectionAsString(false);
1350                         cutSelection(cur, true, false);
1351                         FuncRequest cmd0(cmd, ds);
1352                         inset = createInset(cur.bv().buffer(), cmd0);
1353                 } else {
1354                         inset = createInset(cur.bv().buffer(), cmd);
1355                 }
1356                 if (!inset)
1357                         break;
1358                 insertInset(cur, inset);
1359                 cur.posForward();
1360                 break;
1361         }
1362         case LFUN_CAPTION_INSERT:
1363         case LFUN_FOOTNOTE_INSERT:
1364         case LFUN_NOTE_INSERT:
1365         case LFUN_FLEX_INSERT:
1366         case LFUN_BOX_INSERT:
1367         case LFUN_BRANCH_INSERT:
1368         case LFUN_ERT_INSERT:
1369         case LFUN_LISTING_INSERT:
1370         case LFUN_MARGINALNOTE_INSERT:
1371         case LFUN_OPTIONAL_INSERT:
1372         case LFUN_INDEX_INSERT:
1373                 // Open the inset, and move the current selection
1374                 // inside it.
1375                 doInsertInset(cur, this, cmd, true, true);
1376                 cur.posForward();
1377                 // Some insets are numbered, others are shown in the outline pane so
1378                 // let's update the labels and the toc backend.
1379                 updateLabels(bv->buffer());
1380                 break;
1381
1382         case LFUN_TABULAR_INSERT:
1383                 // if there were no arguments, just open the dialog
1384                 if (doInsertInset(cur, this, cmd, false, true))
1385                         cur.posForward();
1386                 else
1387                         bv->showDialog("tabularcreate");
1388
1389                 break;
1390
1391         case LFUN_FLOAT_INSERT:
1392         case LFUN_FLOAT_WIDE_INSERT:
1393         case LFUN_WRAP_INSERT: {
1394                 bool content = cur.selection();  // will some text be moved into the inset?
1395
1396                 doInsertInset(cur, this, cmd, true, true);
1397                 cur.posForward();
1398                 ParagraphList & pars = cur.text()->paragraphs();
1399
1400                 DocumentClass const & tclass = bv->buffer().params().documentClass();
1401
1402                 // add a separate paragraph for the caption inset
1403                 pars.push_back(Paragraph());
1404                 pars.back().setInsetOwner(pars[0].inInset());
1405                 pars.back().setPlainOrDefaultLayout(tclass);
1406                 int cap_pit = pars.size() - 1;
1407
1408                 // if an empty inset was created, we create an additional empty
1409                 // paragraph at the bottom so that the user can choose where to put
1410                 // the graphics (or table).
1411                 if (!content) {
1412                         pars.push_back(Paragraph());
1413                         pars.back().setInsetOwner(pars[0].inInset());
1414                         pars.back().setPlainOrDefaultLayout(tclass);
1415                 }
1416
1417                 // reposition the cursor to the caption
1418                 cur.pit() = cap_pit;
1419                 cur.pos() = 0;
1420                 // FIXME: This Text/Cursor dispatch handling is a mess!
1421                 // We cannot use Cursor::dispatch here it needs access to up to
1422                 // date metrics.
1423                 FuncRequest cmd_caption(LFUN_CAPTION_INSERT);
1424                 cur.text()->dispatch(cur, cmd_caption);
1425                 cur.updateFlags(Update::Force);
1426                 // FIXME: When leaving the Float (or Wrap) inset we should
1427                 // delete any empty paragraph left above or below the
1428                 // caption.
1429                 break;
1430         }
1431
1432         case LFUN_NOMENCL_INSERT: {
1433                 FuncRequest cmd1 = cmd;
1434                 if (cmd.argument().empty())
1435                         cmd1 = FuncRequest(cmd,
1436                                 bv->cursor().innerText()->getStringToIndex(bv->cursor()));
1437                 Inset * inset = createInset(cur.bv().buffer(), cmd1);
1438                 if (!inset)
1439                         break;
1440                 cur.recordUndo();
1441                 cur.clearSelection();
1442                 insertInset(cur, inset);
1443                 // Show the dialog for the nomenclature entry, since the
1444                 // description entry still needs to be filled in.
1445                 if (cmd.action == LFUN_NOMENCL_INSERT)
1446                         inset->edit(cur, true);
1447                 cur.posForward();
1448                 break;
1449         }
1450
1451         case LFUN_INDEX_PRINT:
1452         case LFUN_NOMENCL_PRINT:
1453         case LFUN_TOC_INSERT:
1454         case LFUN_LINE_INSERT:
1455         case LFUN_NEWPAGE_INSERT:
1456                 // do nothing fancy
1457                 doInsertInset(cur, this, cmd, false, false);
1458                 cur.posForward();
1459                 break;
1460
1461         case LFUN_DEPTH_DECREMENT:
1462                 changeDepth(cur, DEC_DEPTH);
1463                 break;
1464
1465         case LFUN_DEPTH_INCREMENT:
1466                 changeDepth(cur, INC_DEPTH);
1467                 break;
1468
1469         case LFUN_MATH_DISPLAY:
1470                 mathDispatch(cur, cmd, true);
1471                 break;
1472
1473         case LFUN_MATH_MODE:
1474                 if (cmd.argument() == "on")
1475                         // don't pass "on" as argument
1476                         mathDispatch(cur, FuncRequest(LFUN_MATH_MODE), false);
1477                 else
1478                         mathDispatch(cur, cmd, false);
1479                 break;
1480
1481         case LFUN_MATH_MACRO:
1482                 if (cmd.argument().empty())
1483                         cur.errorMessage(from_utf8(N_("Missing argument")));
1484                 else {
1485                         string s = to_utf8(cmd.argument());
1486                         string const s1 = token(s, ' ', 1);
1487                         int const nargs = s1.empty() ? 0 : convert<int>(s1);
1488                         string const s2 = token(s, ' ', 2);
1489                         MacroType type = MacroTypeNewcommand;
1490                         if (s2 == "def")
1491                                 type = MacroTypeDef;
1492                         cur.insert(new MathMacroTemplate(from_utf8(token(s, ' ', 0)), nargs, false, type));
1493                         //cur.nextInset()->edit(cur, true);
1494                 }
1495                 break;
1496
1497         // passthrough hat and underscore outside mathed:
1498         case LFUN_MATH_SUBSCRIPT:
1499                 mathDispatch(cur, FuncRequest(LFUN_SELF_INSERT, "_"), false);
1500                 break;
1501         case LFUN_MATH_SUPERSCRIPT:
1502                 mathDispatch(cur, FuncRequest(LFUN_SELF_INSERT, "^"), false);
1503                 break;
1504
1505         case LFUN_MATH_INSERT:
1506         case LFUN_MATH_MATRIX:
1507         case LFUN_MATH_DELIM:
1508         case LFUN_MATH_BIGDELIM: {
1509                 cap::replaceSelection(cur);
1510                 cur.insert(new InsetMathHull(hullSimple));
1511                 checkAndActivateInset(cur, true);
1512                 LASSERT(cur.inMathed(), /**/);
1513                 cur.dispatch(cmd);
1514                 break;
1515         }
1516
1517         case LFUN_FONT_EMPH: {
1518                 Font font(ignore_font, ignore_language);
1519                 font.fontInfo().setEmph(FONT_TOGGLE);
1520                 toggleAndShow(cur, this, font);
1521                 break;
1522         }
1523
1524         case LFUN_FONT_BOLD: {
1525                 Font font(ignore_font, ignore_language);
1526                 font.fontInfo().setSeries(BOLD_SERIES);
1527                 toggleAndShow(cur, this, font);
1528                 break;
1529         }
1530
1531         case LFUN_FONT_NOUN: {
1532                 Font font(ignore_font, ignore_language);
1533                 font.fontInfo().setNoun(FONT_TOGGLE);
1534                 toggleAndShow(cur, this, font);
1535                 break;
1536         }
1537
1538         case LFUN_FONT_TYPEWRITER: {
1539                 Font font(ignore_font, ignore_language);
1540                 font.fontInfo().setFamily(TYPEWRITER_FAMILY); // no good
1541                 toggleAndShow(cur, this, font);
1542                 break;
1543         }
1544
1545         case LFUN_FONT_SANS: {
1546                 Font font(ignore_font, ignore_language);
1547                 font.fontInfo().setFamily(SANS_FAMILY);
1548                 toggleAndShow(cur, this, font);
1549                 break;
1550         }
1551
1552         case LFUN_FONT_ROMAN: {
1553                 Font font(ignore_font, ignore_language);
1554                 font.fontInfo().setFamily(ROMAN_FAMILY);
1555                 toggleAndShow(cur, this, font);
1556                 break;
1557         }
1558
1559         case LFUN_FONT_DEFAULT: {
1560                 Font font(inherit_font, ignore_language);
1561                 toggleAndShow(cur, this, font);
1562                 break;
1563         }
1564
1565         case LFUN_FONT_UNDERLINE: {
1566                 Font font(ignore_font, ignore_language);
1567                 font.fontInfo().setUnderbar(FONT_TOGGLE);
1568                 toggleAndShow(cur, this, font);
1569                 break;
1570         }
1571
1572         case LFUN_FONT_SIZE: {
1573                 Font font(ignore_font, ignore_language);
1574                 setLyXSize(to_utf8(cmd.argument()), font.fontInfo());
1575                 toggleAndShow(cur, this, font);
1576                 break;
1577         }
1578
1579         case LFUN_LANGUAGE: {
1580                 Language const * lang = languages.getLanguage(to_utf8(cmd.argument()));
1581                 if (!lang)
1582                         break;
1583                 Font font(ignore_font, lang);
1584                 toggleAndShow(cur, this, font);
1585                 break;
1586         }
1587
1588         case LFUN_TEXTSTYLE_APPLY:
1589                 toggleAndShow(cur, this, freefont, toggleall);
1590                 cur.message(_("Character set"));
1591                 break;
1592
1593         // Set the freefont using the contents of \param data dispatched from
1594         // the frontends and apply it at the current cursor location.
1595         case LFUN_TEXTSTYLE_UPDATE: {
1596                 Font font;
1597                 bool toggle;
1598                 if (font.fromString(to_utf8(cmd.argument()), toggle)) {
1599                         freefont = font;
1600                         toggleall = toggle;
1601                         toggleAndShow(cur, this, freefont, toggleall);
1602                         cur.message(_("Character set"));
1603                 } else {
1604                         lyxerr << "Argument not ok";
1605                 }
1606                 break;
1607         }
1608
1609         case LFUN_FINISHED_LEFT:
1610                 LYXERR(Debug::DEBUG, "handle LFUN_FINISHED_LEFT:\n" << cur);
1611                 // We're leaving an inset, going left. If the inset is LTR, we're
1612                 // leaving from the front, so we should not move (remain at --- but
1613                 // not in --- the inset). If the inset is RTL, move left, without
1614                 // entering the inset itself; i.e., move to after the inset.
1615                 if (cur.paragraph().getFontSettings(
1616                                 cur.bv().buffer().params(), cur.pos()).isRightToLeft())
1617                         cursorVisLeft(cur, true);
1618                 break;
1619
1620         case LFUN_FINISHED_RIGHT:
1621                 LYXERR(Debug::DEBUG, "handle LFUN_FINISHED_RIGHT:\n" << cur);
1622                 // We're leaving an inset, going right. If the inset is RTL, we're
1623                 // leaving from the front, so we should not move (remain at --- but
1624                 // not in --- the inset). If the inset is LTR, move right, without
1625                 // entering the inset itself; i.e., move to after the inset.
1626                 if (!cur.paragraph().getFontSettings(
1627                                 cur.bv().buffer().params(), cur.pos()).isRightToLeft())
1628                         cursorVisRight(cur, true);
1629                 break;
1630
1631         case LFUN_FINISHED_BACKWARD:
1632                 LYXERR(Debug::DEBUG, "handle LFUN_FINISHED_BACKWARD:\n" << cur);
1633                 break;
1634
1635         case LFUN_FINISHED_FORWARD:
1636                 LYXERR(Debug::DEBUG, "handle LFUN_FINISHED_FORWARD:\n" << cur);
1637                 ++cur.pos();
1638                 cur.setCurrentFont();
1639                 break;
1640
1641         case LFUN_LAYOUT_PARAGRAPH: {
1642                 string data;
1643                 params2string(cur.paragraph(), data);
1644                 data = "show\n" + data;
1645                 bv->showDialog("paragraph", data);
1646                 break;
1647         }
1648
1649         case LFUN_PARAGRAPH_UPDATE: {
1650                 string data;
1651                 params2string(cur.paragraph(), data);
1652
1653                 // Will the paragraph accept changes from the dialog?
1654                 bool const accept =
1655                         cur.inset().allowParagraphCustomization(cur.idx());
1656
1657                 data = "update " + convert<string>(accept) + '\n' + data;
1658                 bv->updateDialog("paragraph", data);
1659                 break;
1660         }
1661
1662         case LFUN_ACCENT_UMLAUT:
1663         case LFUN_ACCENT_CIRCUMFLEX:
1664         case LFUN_ACCENT_GRAVE:
1665         case LFUN_ACCENT_ACUTE:
1666         case LFUN_ACCENT_TILDE:
1667         case LFUN_ACCENT_CEDILLA:
1668         case LFUN_ACCENT_MACRON:
1669         case LFUN_ACCENT_DOT:
1670         case LFUN_ACCENT_UNDERDOT:
1671         case LFUN_ACCENT_UNDERBAR:
1672         case LFUN_ACCENT_CARON:
1673         case LFUN_ACCENT_BREVE:
1674         case LFUN_ACCENT_TIE:
1675         case LFUN_ACCENT_HUNGARIAN_UMLAUT:
1676         case LFUN_ACCENT_CIRCLE:
1677         case LFUN_ACCENT_OGONEK:
1678                 theLyXFunc().handleKeyFunc(cmd.action);
1679                 if (!cmd.argument().empty())
1680                         // FIXME: Are all these characters encoded in one byte in utf8?
1681                         bv->translateAndInsert(cmd.argument()[0], this, cur);
1682                 break;
1683
1684         case LFUN_FLOAT_LIST_INSERT: {
1685                 DocumentClass const & tclass = bv->buffer().params().documentClass();
1686                 if (tclass.floats().typeExist(to_utf8(cmd.argument()))) {
1687                         cur.recordUndo();
1688                         if (cur.selection())
1689                                 cutSelection(cur, true, false);
1690                         breakParagraph(cur);
1691
1692                         if (cur.lastpos() != 0) {
1693                                 cursorBackward(cur);
1694                                 breakParagraph(cur);
1695                         }
1696
1697                         docstring const laystr = cur.inset().usePlainLayout() ?
1698                                 tclass.plainLayoutName() :
1699                                 tclass.defaultLayoutName();
1700                         setLayout(cur, laystr);
1701                         ParagraphParameters p;
1702                         setParagraphs(cur, p);
1703                         // FIXME This should be simplified when InsetFloatList takes a
1704                         // Buffer in its constructor.
1705                         InsetFloatList * ifl = new InsetFloatList(to_utf8(cmd.argument()));
1706                         ifl->setBuffer(bv->buffer());
1707                         insertInset(cur, ifl);
1708                         cur.posForward();
1709                 } else {
1710                         lyxerr << "Non-existent float type: "
1711                                << to_utf8(cmd.argument()) << endl;
1712                 }
1713                 break;
1714         }
1715
1716         case LFUN_CHANGE_ACCEPT: {
1717                 acceptOrRejectChanges(cur, ACCEPT);
1718                 break;
1719         }
1720
1721         case LFUN_CHANGE_REJECT: {
1722                 acceptOrRejectChanges(cur, REJECT);
1723                 break;
1724         }
1725
1726         case LFUN_THESAURUS_ENTRY: {
1727                 docstring arg = cmd.argument();
1728                 if (arg.empty()) {
1729                         arg = cur.selectionAsString(false);
1730                         // FIXME
1731                         if (arg.size() > 100 || arg.empty()) {
1732                                 // Get word or selection
1733                                 selectWordWhenUnderCursor(cur, WHOLE_WORD);
1734                                 arg = cur.selectionAsString(false);
1735                         }
1736                 }
1737                 bv->showDialog("thesaurus", to_utf8(arg));
1738                 break;
1739         }
1740
1741         case LFUN_PARAGRAPH_PARAMS_APPLY: {
1742                 // Given data, an encoding of the ParagraphParameters
1743                 // generated in the Paragraph dialog, this function sets
1744                 // the current paragraph, or currently selected paragraphs,
1745                 // appropriately.
1746                 // NOTE: This function overrides all existing settings.
1747                 setParagraphs(cur, cmd.argument());
1748                 cur.message(_("Paragraph layout set"));
1749                 break;
1750         }
1751
1752         case LFUN_PARAGRAPH_PARAMS: {
1753                 // Given data, an encoding of the ParagraphParameters as we'd
1754                 // find them in a LyX file, this function modifies the current paragraph,
1755                 // or currently selected paragraphs.
1756                 // NOTE: This function only modifies, and does not override, existing
1757                 // settings.
1758                 setParagraphs(cur, cmd.argument(), true);
1759                 cur.message(_("Paragraph layout set"));
1760                 break;
1761         }
1762
1763         case LFUN_ESCAPE:
1764                 if (cur.selection()) {
1765                         cur.selection() = false;
1766                 } else {
1767                         cur.undispatched();
1768                         // This used to be LFUN_FINISHED_RIGHT, I think FORWARD is more
1769                         // correct, but I'm not 100% sure -- dov, 071019
1770                         cmd = FuncRequest(LFUN_FINISHED_FORWARD);
1771                 }
1772                 break;
1773
1774         case LFUN_OUTLINE_UP:
1775                 outline(OutlineUp, cur);
1776                 setCursor(cur, cur.pit(), 0);
1777                 updateLabels(cur.buffer());
1778                 needsUpdate = true;
1779                 break;
1780
1781         case LFUN_OUTLINE_DOWN:
1782                 outline(OutlineDown, cur);
1783                 setCursor(cur, cur.pit(), 0);
1784                 updateLabels(cur.buffer());
1785                 needsUpdate = true;
1786                 break;
1787
1788         case LFUN_OUTLINE_IN:
1789                 outline(OutlineIn, cur);
1790                 updateLabels(cur.buffer());
1791                 needsUpdate = true;
1792                 break;
1793
1794         case LFUN_OUTLINE_OUT:
1795                 outline(OutlineOut, cur);
1796                 updateLabels(cur.buffer());
1797                 needsUpdate = true;
1798                 break;
1799
1800         default:
1801                 LYXERR(Debug::ACTION, "Command " << cmd << " not DISPATCHED by Text");
1802                 cur.undispatched();
1803                 break;
1804         }
1805
1806         needsUpdate |= (cur.pos() != cur.lastpos()) && cur.selection();
1807
1808         // FIXME: The cursor flag is reset two lines below
1809         // so we need to check here if some of the LFUN did touch that.
1810         // for now only Text::erase() and Text::backspace() do that.
1811         // The plan is to verify all the LFUNs and then to remove this
1812         // singleParUpdate boolean altogether.
1813         if (cur.result().update() & Update::Force) {
1814                 singleParUpdate = false;
1815                 needsUpdate = true;
1816         }
1817
1818         // FIXME: the following code should go in favor of fine grained
1819         // update flag treatment.
1820         if (singleParUpdate) {
1821                 // Inserting characters does not change par height in general. So, try
1822                 // to update _only_ this paragraph. BufferView will detect if a full
1823                 // metrics update is needed anyway.
1824                 cur.updateFlags(Update::SinglePar | Update::FitCursor);
1825                 return;
1826         }
1827
1828         if (!needsUpdate
1829             && &oldTopSlice.inset() == &cur.inset()
1830             && oldTopSlice.idx() == cur.idx()
1831             && !sel // sel is a backup of cur.selection() at the biginning of the function.
1832             && !cur.selection())
1833                 // FIXME: it would be better if we could just do this
1834                 //
1835                 //if (cur.result().update() != Update::FitCursor)
1836                 //      cur.noUpdate();
1837                 //
1838                 // But some LFUNs do not set Update::FitCursor when needed, so we
1839                 // do it for all. This is not very harmfull as FitCursor will provoke
1840                 // a full redraw only if needed but still, a proper review of all LFUN
1841                 // should be done and this needsUpdate boolean can then be removed.
1842                 cur.updateFlags(Update::FitCursor);
1843         else
1844                 cur.updateFlags(Update::Force | Update::FitCursor);
1845 }
1846
1847
1848 bool Text::getStatus(Cursor & cur, FuncRequest const & cmd,
1849                         FuncStatus & flag) const
1850 {
1851         LASSERT(cur.text() == this, /**/);
1852
1853         Font const & font = cur.real_current_font;
1854         FontInfo const & fontinfo = font.fontInfo();
1855         bool enable = true;
1856         InsetCode code = NO_CODE;
1857
1858         switch (cmd.action) {
1859
1860         case LFUN_DEPTH_DECREMENT:
1861                 enable = changeDepthAllowed(cur, DEC_DEPTH);
1862                 break;
1863
1864         case LFUN_DEPTH_INCREMENT:
1865                 enable = changeDepthAllowed(cur, INC_DEPTH);
1866                 break;
1867
1868         case LFUN_APPENDIX:
1869                 flag.setOnOff(cur.paragraph().params().startOfAppendix());
1870                 break;
1871
1872         case LFUN_DIALOG_SHOW_NEW_INSET:
1873                 if (cmd.argument() == "bibitem")
1874                         code = BIBITEM_CODE;
1875                 else if (cmd.argument() == "bibtex")
1876                         code = BIBTEX_CODE;
1877                 else if (cmd.argument() == "box")
1878                         code = BOX_CODE;
1879                 else if (cmd.argument() == "branch")
1880                         code = BRANCH_CODE;
1881                 else if (cmd.argument() == "citation")
1882                         code = CITE_CODE;
1883                 else if (cmd.argument() == "ert")
1884                         code = ERT_CODE;
1885                 else if (cmd.argument() == "external")
1886                         code = EXTERNAL_CODE;
1887                 else if (cmd.argument() == "float")
1888                         code = FLOAT_CODE;
1889                 else if (cmd.argument() == "graphics")
1890                         code = GRAPHICS_CODE;
1891                 else if (cmd.argument() == "href")
1892                         code = HYPERLINK_CODE;
1893                 else if (cmd.argument() == "include")
1894                         code = INCLUDE_CODE;
1895                 else if (cmd.argument() == "index")
1896                         code = INDEX_CODE;
1897                 else if (cmd.argument() == "nomenclature")
1898                         code = NOMENCL_CODE;
1899                 else if (cmd.argument() == "label")
1900                         code = LABEL_CODE;
1901                 else if (cmd.argument() == "note")
1902                         code = NOTE_CODE;
1903                 else if (cmd.argument() == "ref")
1904                         code = REF_CODE;
1905                 else if (cmd.argument() == "space")
1906                         code = SPACE_CODE;
1907                 else if (cmd.argument() == "toc")
1908                         code = TOC_CODE;
1909                 else if (cmd.argument() == "vspace")
1910                         code = VSPACE_CODE;
1911                 else if (cmd.argument() == "wrap")
1912                         code = WRAP_CODE;
1913                 else if (cmd.argument() == "listings")
1914                         code = LISTINGS_CODE;
1915                 break;
1916
1917         case LFUN_ERT_INSERT:
1918                 code = ERT_CODE;
1919                 break;
1920         case LFUN_LISTING_INSERT:
1921                 code = LISTINGS_CODE;
1922                 break;
1923         case LFUN_FOOTNOTE_INSERT:
1924                 code = FOOT_CODE;
1925                 break;
1926         case LFUN_TABULAR_INSERT:
1927                 code = TABULAR_CODE;
1928                 break;
1929         case LFUN_MARGINALNOTE_INSERT:
1930                 code = MARGIN_CODE;
1931                 break;
1932         case LFUN_FLOAT_INSERT:
1933         case LFUN_FLOAT_WIDE_INSERT:
1934                 code = FLOAT_CODE;
1935                 break;
1936         case LFUN_WRAP_INSERT:
1937                 code = WRAP_CODE;
1938                 break;
1939         case LFUN_FLOAT_LIST_INSERT:
1940                 code = FLOAT_LIST_CODE;
1941                 break;
1942         case LFUN_CAPTION_INSERT:
1943                 code = CAPTION_CODE;
1944                 break;
1945         case LFUN_NOTE_INSERT:
1946                 code = NOTE_CODE;
1947                 // in commands (sections etc., only Notes are allowed)
1948                 enable = (cmd.argument().empty() || cmd.getArg(0) == "Note" ||
1949                           !cur.paragraph().layout().isCommand());
1950                 break;
1951         case LFUN_FLEX_INSERT: {
1952                 code = FLEX_CODE;
1953                 string s = cmd.getArg(0);
1954                 InsetLayout il =
1955                         cur.buffer().params().documentClass().insetLayout(from_utf8(s));
1956                 if (il.lyxtype() != "charstyle" &&
1957                     il.lyxtype() != "custom" &&
1958                     il.lyxtype() != "element" &&
1959                     il.lyxtype ()!= "standard")
1960                         enable = false;
1961                 break;
1962                 }
1963         case LFUN_BOX_INSERT:
1964                 code = BOX_CODE;
1965                 break;
1966         case LFUN_BRANCH_INSERT:
1967                 code = BRANCH_CODE;
1968                 if (cur.buffer().masterBuffer()->params().branchlist().empty())
1969                         enable = false;
1970                 break;
1971         case LFUN_LABEL_INSERT:
1972                 code = LABEL_CODE;
1973                 break;
1974         case LFUN_INFO_INSERT:
1975                 code = INFO_CODE;
1976                 break;
1977         case LFUN_OPTIONAL_INSERT:
1978                 code = OPTARG_CODE;
1979                 enable = cur.paragraph().insetList().count(OPTARG_CODE)
1980                         < cur.paragraph().layout().optionalargs;
1981                 break;
1982         case LFUN_INDEX_INSERT:
1983                 code = INDEX_CODE;
1984                 break;
1985         case LFUN_INDEX_PRINT:
1986                 code = INDEX_PRINT_CODE;
1987                 break;
1988         case LFUN_NOMENCL_INSERT:
1989                 code = NOMENCL_CODE;
1990                 break;
1991         case LFUN_NOMENCL_PRINT:
1992                 code = NOMENCL_PRINT_CODE;
1993                 break;
1994         case LFUN_TOC_INSERT:
1995                 code = TOC_CODE;
1996                 break;
1997         case LFUN_HYPERLINK_INSERT:
1998                 code = HYPERLINK_CODE;
1999                 break;
2000         case LFUN_QUOTE_INSERT:
2001                 // always allow this, since we will inset a raw quote
2002                 // if an inset is not allowed.
2003                 break;
2004         case LFUN_SPECIALCHAR_INSERT:
2005                 code = SPECIALCHAR_CODE;
2006                 break;
2007         case LFUN_SPACE_INSERT:
2008                 // slight hack: we know this is allowed in math mode
2009                 if (cur.inTexted())
2010                         code = SPACE_CODE;
2011                 break;
2012
2013         case LFUN_INSET_MODIFY:
2014                 // We need to disable this, because we may get called for a
2015                 // tabular cell via
2016                 // InsetTabular::getStatus() -> InsetText::getStatus()
2017                 // and we don't handle LFUN_INSET_MODIFY.
2018                 enable = false;
2019                 break;
2020
2021         case LFUN_FONT_EMPH:
2022                 flag.setOnOff(fontinfo.emph() == FONT_ON);
2023                 break;
2024
2025         case LFUN_FONT_NOUN:
2026                 flag.setOnOff(fontinfo.noun() == FONT_ON);
2027                 break;
2028
2029         case LFUN_FONT_BOLD:
2030                 flag.setOnOff(fontinfo.series() == BOLD_SERIES);
2031                 break;
2032
2033         case LFUN_FONT_SANS:
2034                 flag.setOnOff(fontinfo.family() == SANS_FAMILY);
2035                 break;
2036
2037         case LFUN_FONT_ROMAN:
2038                 flag.setOnOff(fontinfo.family() == ROMAN_FAMILY);
2039                 break;
2040
2041         case LFUN_FONT_TYPEWRITER:
2042                 flag.setOnOff(fontinfo.family() == TYPEWRITER_FAMILY);
2043                 break;
2044
2045         case LFUN_CUT:
2046         case LFUN_COPY:
2047                 enable = cur.selection();
2048                 break;
2049
2050         case LFUN_PASTE: {
2051                 if (cmd.argument().empty()) {
2052                         if (theClipboard().isInternal())
2053                                 enable = cap::numberOfSelections() > 0;
2054                         else
2055                                 enable = !theClipboard().empty();
2056                         break;
2057                 }
2058
2059                 // we have an argument
2060                 string const arg = to_utf8(cmd.argument());
2061                 if (isStrUnsignedInt(arg)) {
2062                         // it's a number and therefore means the internal stack
2063                         unsigned int n = convert<unsigned int>(arg);
2064                         enable = cap::numberOfSelections() > n;
2065                         break;
2066                 }
2067
2068                 // explicit graphics type?
2069                 if ((arg == "pdf" && theClipboard().hasGraphicsContents(Clipboard::PdfGraphicsType))
2070                     || (arg == "png" && theClipboard().hasGraphicsContents(Clipboard::PngGraphicsType))
2071                     || (arg == "jpeg" && theClipboard().hasGraphicsContents(Clipboard::JpegGraphicsType))
2072                     || (arg == "linkback" && theClipboard().hasGraphicsContents(Clipboard::LinkBackGraphicsType))) {
2073                         enable = true;
2074                         break;
2075                 }
2076
2077                 // unknown argument
2078                 enable = false;
2079                 break;
2080          }
2081
2082         case LFUN_CLIPBOARD_PASTE:
2083                 enable = !theClipboard().empty();
2084                 break;
2085
2086         case LFUN_PRIMARY_SELECTION_PASTE:
2087                 enable = cur.selection() || !theSelection().empty();
2088                 break;
2089
2090         case LFUN_PARAGRAPH_MOVE_UP:
2091                 enable = cur.pit() > 0 && !cur.selection();
2092                 break;
2093
2094         case LFUN_PARAGRAPH_MOVE_DOWN:
2095                 enable = cur.pit() < cur.lastpit() && !cur.selection();
2096                 break;
2097
2098         case LFUN_INSET_DISSOLVE:
2099                 if (!cmd.argument().empty()) {
2100                         InsetLayout il = cur.inset().getLayout(cur.buffer().params());
2101                         enable = cur.inset().lyxCode() == FLEX_CODE
2102                                  && il.lyxtype() == to_utf8(cmd.argument());
2103                 } else {
2104                         enable = !isMainText(cur.bv().buffer())
2105                                  && cur.inset().nargs() == 1;
2106                 }
2107                 break;
2108
2109         case LFUN_CHANGE_ACCEPT:
2110         case LFUN_CHANGE_REJECT:
2111                 // TODO: context-sensitive enabling of LFUN_CHANGE_ACCEPT/REJECT
2112                 // In principle, these LFUNs should only be enabled if there
2113                 // is a change at the current position/in the current selection.
2114                 // However, without proper optimizations, this will inevitably
2115                 // result in unacceptable performance - just imagine a user who
2116                 // wants to select the complete content of a long document.
2117                 enable = true;
2118                 break;
2119
2120         case LFUN_OUTLINE_UP:
2121         case LFUN_OUTLINE_DOWN:
2122         case LFUN_OUTLINE_IN:
2123         case LFUN_OUTLINE_OUT:
2124                 // FIXME: LyX is not ready for outlining within inset.
2125                 enable = isMainText(cur.bv().buffer())
2126                         && cur.paragraph().layout().toclevel != Layout::NOT_IN_TOC;
2127                 break;
2128
2129         case LFUN_NEWLINE_INSERT:
2130                 // LaTeX restrictions (labels or empty par)
2131                 enable = (cur.pos() > cur.paragraph().beginOfBody());
2132                 break;
2133
2134         case LFUN_SET_GRAPHICS_GROUP: {
2135                 InsetGraphics * ins = graphics::getCurrentGraphicsInset(cur);
2136                 if (!ins)
2137                         enable = false;
2138                 else
2139                         flag.setOnOff(to_utf8(cmd.argument()) == ins->getParams().groupId);
2140                 break;
2141         }
2142
2143         case LFUN_WORD_DELETE_FORWARD:
2144         case LFUN_WORD_DELETE_BACKWARD:
2145         case LFUN_LINE_DELETE:
2146         case LFUN_WORD_FORWARD:
2147         case LFUN_WORD_BACKWARD:
2148         case LFUN_WORD_RIGHT:
2149         case LFUN_WORD_LEFT:
2150         case LFUN_CHAR_FORWARD:
2151         case LFUN_CHAR_FORWARD_SELECT:
2152         case LFUN_CHAR_BACKWARD:
2153         case LFUN_CHAR_BACKWARD_SELECT:
2154         case LFUN_CHAR_LEFT:
2155         case LFUN_CHAR_LEFT_SELECT:
2156         case LFUN_CHAR_RIGHT:
2157         case LFUN_CHAR_RIGHT_SELECT:
2158         case LFUN_UP:
2159         case LFUN_UP_SELECT:
2160         case LFUN_DOWN:
2161         case LFUN_DOWN_SELECT:
2162         case LFUN_PARAGRAPH_UP_SELECT:
2163         case LFUN_PARAGRAPH_DOWN_SELECT:
2164         case LFUN_LINE_BEGIN_SELECT:
2165         case LFUN_LINE_END_SELECT:
2166         case LFUN_WORD_FORWARD_SELECT:
2167         case LFUN_WORD_BACKWARD_SELECT:
2168         case LFUN_WORD_RIGHT_SELECT:
2169         case LFUN_WORD_LEFT_SELECT:
2170         case LFUN_WORD_SELECT:
2171         case LFUN_PARAGRAPH_UP:
2172         case LFUN_PARAGRAPH_DOWN:
2173         case LFUN_LINE_BEGIN:
2174         case LFUN_LINE_END:
2175         case LFUN_CHAR_DELETE_FORWARD:
2176         case LFUN_CHAR_DELETE_BACKWARD:
2177         case LFUN_BREAK_PARAGRAPH:
2178         case LFUN_PARAGRAPH_SPACING:
2179         case LFUN_INSET_INSERT:
2180         case LFUN_WORD_UPCASE:
2181         case LFUN_WORD_LOWCASE:
2182         case LFUN_WORD_CAPITALIZE:
2183         case LFUN_CHARS_TRANSPOSE:
2184         case LFUN_SERVER_GET_XY:
2185         case LFUN_SERVER_SET_XY:
2186         case LFUN_SERVER_GET_LAYOUT:
2187         case LFUN_LAYOUT:
2188         case LFUN_DATE_INSERT:
2189         case LFUN_SELF_INSERT:
2190         case LFUN_LINE_INSERT:
2191         case LFUN_NEWPAGE_INSERT:
2192         case LFUN_MATH_DISPLAY:
2193         case LFUN_MATH_MODE:
2194         case LFUN_MATH_MACRO:
2195         case LFUN_MATH_MATRIX:
2196         case LFUN_MATH_DELIM:
2197         case LFUN_MATH_BIGDELIM:
2198         case LFUN_MATH_INSERT:
2199         case LFUN_MATH_SUBSCRIPT:
2200         case LFUN_MATH_SUPERSCRIPT:
2201         case LFUN_FONT_DEFAULT:
2202         case LFUN_FONT_UNDERLINE:
2203         case LFUN_FONT_SIZE:
2204         case LFUN_LANGUAGE:
2205         case LFUN_TEXTSTYLE_APPLY:
2206         case LFUN_TEXTSTYLE_UPDATE:
2207         case LFUN_LAYOUT_PARAGRAPH:
2208         case LFUN_PARAGRAPH_UPDATE:
2209         case LFUN_ACCENT_UMLAUT:
2210         case LFUN_ACCENT_CIRCUMFLEX:
2211         case LFUN_ACCENT_GRAVE:
2212         case LFUN_ACCENT_ACUTE:
2213         case LFUN_ACCENT_TILDE:
2214         case LFUN_ACCENT_CEDILLA:
2215         case LFUN_ACCENT_MACRON:
2216         case LFUN_ACCENT_DOT:
2217         case LFUN_ACCENT_UNDERDOT:
2218         case LFUN_ACCENT_UNDERBAR:
2219         case LFUN_ACCENT_CARON:
2220         case LFUN_ACCENT_BREVE:
2221         case LFUN_ACCENT_TIE:
2222         case LFUN_ACCENT_HUNGARIAN_UMLAUT:
2223         case LFUN_ACCENT_CIRCLE:
2224         case LFUN_ACCENT_OGONEK:
2225         case LFUN_THESAURUS_ENTRY:
2226         case LFUN_PARAGRAPH_PARAMS_APPLY:
2227         case LFUN_PARAGRAPH_PARAMS:
2228         case LFUN_ESCAPE:
2229         case LFUN_BUFFER_END:
2230         case LFUN_BUFFER_BEGIN:
2231         case LFUN_BUFFER_BEGIN_SELECT:
2232         case LFUN_BUFFER_END_SELECT:
2233         case LFUN_UNICODE_INSERT:
2234                 // these are handled in our dispatch()
2235                 enable = true;
2236                 break;
2237
2238         default:
2239                 return false;
2240         }
2241
2242         if (code != NO_CODE
2243             && (cur.empty() || !cur.inset().insetAllowed(code)))
2244                 enable = false;
2245
2246         flag.setEnabled(enable);
2247         return true;
2248 }
2249
2250
2251 void Text::pasteString(Cursor & cur, docstring const & clip,
2252                 bool asParagraphs)
2253 {
2254         cur.clearSelection();
2255         if (!clip.empty()) {
2256                 cur.recordUndo();
2257                 if (asParagraphs)
2258                         insertStringAsParagraphs(cur, clip);
2259                 else
2260                         insertStringAsLines(cur, clip);
2261         }
2262 }
2263
2264 } // namespace lyx