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/Application.h"
  50 #include "frontends/Clipboard.h"
  51 #include "frontends/LyXView.h"
  52 #include "frontends/Selection.h"
  53 #include "frontends/WorkArea.h"
  54
  55 #include "insets/InsetCollapsable.h"
  56 #include "insets/InsetCommand.h"
  57 #include "insets/InsetExternal.h"
  58 #include "insets/InsetFloatList.h"
  59 #include "insets/InsetGraphics.h"
  60 #include "insets/InsetGraphicsParams.h"
  61 #include "insets/InsetNewline.h"
  62 #include "insets/InsetQuotes.h"
  63 #include "insets/InsetSpecialChar.h"
  64 #include "insets/InsetText.h"
  65
  66 #include "support/convert.h"
  67 #include "support/debug.h"
  68 #include "support/gettext.h"
  69 #include "support/lstrings.h"
  70 #include "support/lyxtime.h"
  71
  72 #include "mathed/InsetMathHull.h"
  73 #include "mathed/MathMacroTemplate.h"
  74
  75 #include <boost/next_prior.hpp>
  76
  77 #include <clocale>
  78 #include <sstream>
  79
  80 using namespace std;
  81 using namespace lyx::support;
  82
  83 namespace lyx {
  84
  85 using cap::copySelection;
  86 using cap::cutSelection;
  87 using cap::pasteFromStack;
  88 using cap::pasteClipboardText;
  89 using cap::pasteClipboardGraphics;
  90 using cap::replaceSelection;
  91 using cap::grabAndEraseSelection;
  92 using cap::selClearOrDel;
  93
  94 // globals...
  95 static Font freefont(ignore_font, ignore_language);
  96 static bool toggleall = false;
  97
  98 static void toggleAndShow(Cursor & cur, Text * text,
  99         Font const & font, bool toggleall = true)
 100 {
 101         text->toggleFree(cur, font, toggleall);
 102
 103         if (font.language() != ignore_language ||
 104             font.fontInfo().number() != FONT_IGNORE) {
 105                 TextMetrics const & tm = cur.bv().textMetrics(text);
 106                 if (cur.boundary() != tm.isRTLBoundary(cur.pit(), cur.pos(),
 107                                                        cur.real_current_font))
 108                         text->setCursor(cur, cur.pit(), cur.pos(),
 109                                         false, !cur.boundary());
 110         }
 111 }
 112
 113
 114 static void moveCursor(Cursor & cur, bool selecting)
 115 {
 116         if (selecting || cur.mark())
 117                 cur.setSelection();
 118 }
 119
 120
 121 static void finishChange(Cursor & cur, bool selecting)
 122 {
 123         cur.finishUndo();
 124         moveCursor(cur, selecting);
 125 }
 126
 127
 128 static void mathDispatch(Cursor & cur, FuncRequest const & cmd, bool display)
 129 {
 130         cur.recordUndo();
 131         docstring sel = cur.selectionAsString(false);
 132
 133         // It may happen that sel is empty but there is a selection
 134         replaceSelection(cur);
 135
 136         // Is this a valid formula?
 137         bool valid = true;
 138
 139         if (sel.empty()) {
 140 #ifdef ENABLE_ASSERTIONS
 141                 const int old_pos = cur.pos();
 142 #endif
 143                 cur.insert(new InsetMathHull(hullSimple));
 144 #ifdef ENABLE_ASSERTIONS
 145                 LASSERT(old_pos == cur.pos(), /**/);
 146 #endif
 147                 cur.nextInset()->edit(cur, true);
 148                 // don't do that also for LFUN_MATH_MODE
 149                 // unless you want end up with always changing
 150                 // to mathrm when opening an inlined inset --
 151                 // I really hate "LyXfunc overloading"...
 152                 if (display)
 153                         cur.dispatch(FuncRequest(LFUN_MATH_DISPLAY));
 154                 // Avoid an unnecessary undo step if cmd.argument
 155                 // is empty
 156                 if (!cmd.argument().empty())
 157                         cur.dispatch(FuncRequest(LFUN_MATH_INSERT,
 158                                                  cmd.argument()));
 159         } else {
 160                 // create a macro if we see "\\newcommand"
 161                 // somewhere, and an ordinary formula
 162                 // otherwise
 163                 if (sel.find(from_ascii("\\newcommand")) == string::npos
 164                                 && sel.find(from_ascii("\\newlyxcommand")) == string::npos
 165                                 && sel.find(from_ascii("\\def")) == string::npos)
 166                 {
 167                         InsetMathHull * formula = new InsetMathHull;
 168                         string const selstr = to_utf8(sel);
 169                         istringstream is(selstr);
 170                         Lexer lex;
 171                         lex.setStream(is);
 172                         if (!formula->readQuiet(lex)) {
 173                                 // No valid formula, let's try with delims
 174                                 is.str("$" + selstr + "$");
 175                                 lex.setStream(is);
 176                                 if (!formula->readQuiet(lex)) {
 177                                         // Still not valid, leave it as is
 178                                         valid = false;
 179                                         delete formula;
 180                                         cur.insert(sel);
 181                                 } else
 182                                         cur.insert(formula);
 183                         } else
 184                                 cur.insert(formula);
 185                 } else {
 186                         cur.insert(new MathMacroTemplate(sel));
 187                 }
 188         }
 189         if (valid)
 190                 cur.message(from_utf8(N_("Math editor mode")));
 191         else
 192                 cur.message(from_utf8(N_("No valid math formula")));
 193 }
 194
 195
 196 void regexpDispatch(Cursor & cur, FuncRequest const & cmd)
 197 {
 198         BOOST_ASSERT(cmd.action == LFUN_REGEXP_MODE);
 199         if (cur.inRegexped()) {
 200                 cur.message(_("Already in regexp mode"));
 201                 return;
 202         }
 203         cur.recordUndo();
 204         docstring const save_selection = grabAndEraseSelection(cur);
 205         selClearOrDel(cur);
 206         // replaceSelection(cur);
 207
 208         cur.insert(new InsetMathHull(hullRegexp));
 209         cur.nextInset()->edit(cur, true);
 210         cur.niceInsert(save_selection);
 211
 212         cur.message(_("Regexp editor mode"));
 213 }
 214
 215
 216 static void specialChar(Cursor & cur, InsetSpecialChar::Kind kind)
 217 {
 218         cur.recordUndo();
 219         cap::replaceSelection(cur);
 220         cur.insert(new InsetSpecialChar(kind));
 221         cur.posForward();
 222 }
 223
 224
 225 static bool doInsertInset(Cursor & cur, Text * text,
 226         FuncRequest const & cmd, bool edit, bool pastesel)
 227 {
 228         Buffer & buffer = cur.bv().buffer();
 229         BufferParams const & bparams = buffer.params();
 230         Inset * inset = createInset(buffer, cmd);
 231         if (!inset)
 232                 return false;
 233
 234         if (InsetCollapsable * ci = inset->asInsetCollapsable())
 235                 ci->setLayout(bparams);
 236
 237         cur.recordUndo();
 238         if (cmd.action == LFUN_INDEX_INSERT) {
 239                 docstring ds = subst(text->getStringToIndex(cur), '\n', ' ');
 240                 text->insertInset(cur, inset);
 241                 if (edit)
 242                         inset->edit(cur, true);
 243                 // Now put this into inset
 244                 static_cast<InsetCollapsable *>(inset)->
 245                                 text().insertStringAsParagraphs(cur, ds);
 246                 return true;
 247         }
 248
 249         bool gotsel = false;
 250         if (cur.selection()) {
 251                 cutSelection(cur, false, pastesel);
 252                 cur.clearSelection();
 253                 gotsel = true;
 254         }
 255         text->insertInset(cur, inset);
 256
 257         if (edit)
 258                 inset->edit(cur, true);
 259
 260         if (!gotsel || !pastesel)
 261                 return true;
 262
 263         pasteFromStack(cur, cur.buffer()->errorList("Paste"), 0);
 264         cur.buffer()->errors("Paste");
 265         cur.clearSelection(); // bug 393
 266         cur.finishUndo();
 267         InsetText * insetText = dynamic_cast<InsetText *>(inset);
 268         if (insetText && (!insetText->allowMultiPar() || cur.lastpit() == 0)) {
 269                 // reset first par to default
 270                 cur.text()->paragraphs().begin()
 271                         ->setPlainOrDefaultLayout(bparams.documentClass());
 272                 cur.pos() = 0;
 273                 cur.pit() = 0;
 274                 // Merge multiple paragraphs -- hack
 275                 while (cur.lastpit() > 0)
 276                         mergeParagraph(bparams, cur.text()->paragraphs(), 0);
 277                 cur.leaveInset(*inset);
 278         } else {
 279                 cur.leaveInset(*inset);
 280                 // reset surrounding par to default
 281                 DocumentClass const & dc = bparams.documentClass();
 282                 docstring const layoutname = inset->usePlainLayout()
 283                         ? dc.plainLayoutName()
 284                         : dc.defaultLayoutName();
 285                 text->setLayout(cur, layoutname);
 286         }
 287
 288         return true;
 289 }
 290
 291
 292 string const freefont2string()
 293 {
 294         return freefont.toString(toggleall);
 295 }
 296
 297
 298 /// the type of outline operation
 299 enum OutlineOp {
 300         OutlineUp, // Move this header with text down
 301         OutlineDown,   // Move this header with text up
 302         OutlineIn, // Make this header deeper
 303         OutlineOut // Make this header shallower
 304 };
 305
 306
 307 static void outline(OutlineOp mode, Cursor & cur)
 308 {
 309         Buffer & buf = *cur.buffer();
 310         pit_type & pit = cur.pit();
 311         ParagraphList & pars = buf.text().paragraphs();
 312         ParagraphList::iterator bgn = pars.begin();
 313         // The first paragraph of the area to be copied:
 314         ParagraphList::iterator start = boost::next(bgn, pit);
 315         // The final paragraph of area to be copied:
 316         ParagraphList::iterator finish = start;
 317         ParagraphList::iterator end = pars.end();
 318
 319         DocumentClass const & tc = buf.params().documentClass();
 320
 321         int const thistoclevel = start->layout().toclevel;
 322         int toclevel;
 323
 324         // Move out (down) from this section header
 325         if (finish != end)
 326                 ++finish;
 327         // Seek the one (on same level) below
 328         for (; finish != end; ++finish) {
 329                 toclevel = finish->layout().toclevel;
 330                 if (toclevel != Layout::NOT_IN_TOC && toclevel <= thistoclevel) {
 331                         break;
 332                 }
 333         }
 334
 335         switch (mode) {
 336                 case OutlineUp: {
 337                         if (start == pars.begin())
 338                                 // Nothing to move.
 339                                 return;
 340                         ParagraphList::iterator dest = start;
 341                         // Move out (up) from this header
 342                         if (dest == bgn)
 343                                 return;
 344                         // Search previous same-level header above
 345                         do {
 346                                 --dest;
 347                                 toclevel = dest->layout().toclevel;
 348                         } while(dest != bgn
 349                                 && (toclevel == Layout::NOT_IN_TOC
 350                                     || toclevel > thistoclevel));
 351                         // Not found; do nothing
 352                         if (toclevel == Layout::NOT_IN_TOC || toclevel > thistoclevel)
 353                                 return;
 354                         pit_type const newpit = distance(bgn, dest);
 355                         pit_type const len = distance(start, finish);
 356                         pit_type const deletepit = pit + len;
 357                         buf.undo().recordUndo(cur, ATOMIC_UNDO, newpit, deletepit - 1);
 358                         pars.insert(dest, start, finish);
 359                         start = boost::next(pars.begin(), deletepit);
 360                         pit = newpit;
 361                         pars.erase(start, finish);
 362                         return;
 363                 }
 364                 case OutlineDown: {
 365                         if (finish == end)
 366                                 // Nothing to move.
 367                                 return;
 368                         // Go one down from *this* header:
 369                         ParagraphList::iterator dest = boost::next(finish, 1);
 370                         // Go further down to find header to insert in front of:
 371                         for (; dest != end; ++dest) {
 372                                 toclevel = dest->layout().toclevel;
 373                                 if (toclevel != Layout::NOT_IN_TOC
 374                                     && toclevel <= thistoclevel) {
 375                                         break;
 376                                 }
 377                         }
 378                         // One such was found:
 379                         pit_type newpit = distance(bgn, dest);
 380                         pit_type const len = distance(start, finish);
 381                         buf.undo().recordUndo(cur, ATOMIC_UNDO, pit, newpit - 1);
 382                         pars.insert(dest, start, finish);
 383                         start = boost::next(bgn, pit);
 384                         pit = newpit - len;
 385                         pars.erase(start, finish);
 386                         return;
 387                 }
 388                 case OutlineIn: {
 389                         pit_type const len = distance(start, finish);
 390                         buf.undo().recordUndo(cur, ATOMIC_UNDO, pit, pit + len - 1);
 391                         for (; start != finish; ++start) {
 392                                 toclevel = start->layout().toclevel;
 393                                 if (toclevel == Layout::NOT_IN_TOC)
 394                                         continue;
 395                                 DocumentClass::const_iterator lit = tc.begin();
 396                                 DocumentClass::const_iterator len = tc.end();
 397                                 for (; lit != len; ++lit) {
 398                                         if (lit->toclevel == toclevel + 1 &&
 399                                             start->layout().labeltype == lit->labeltype) {
 400                                                 start->setLayout(*lit);
 401                                                 break;
 402                                         }
 403                                 }
 404                         }
 405                         return;
 406                 }
 407                 case OutlineOut: {
 408                         pit_type const len = distance(start, finish);
 409                         buf.undo().recordUndo(cur, ATOMIC_UNDO, pit, pit + len - 1);
 410                         for (; start != finish; ++start) {
 411                                 toclevel = start->layout().toclevel;
 412                                 if (toclevel == Layout::NOT_IN_TOC)
 413                                         continue;
 414                                 DocumentClass::const_iterator lit = tc.begin();
 415                                 DocumentClass::const_iterator len = tc.end();
 416                                 for (; lit != len; ++lit) {
 417                                         if (lit->toclevel == toclevel - 1 &&
 418                                                 start->layout().labeltype == lit->labeltype) {
 419                                                         start->setLayout(*lit);
 420                                                         break;
 421                                         }
 422                                 }
 423                         }
 424                         return;
 425                 }
 426         }
 427 }
 428
 429
 430 void Text::number(Cursor & cur)
 431 {
 432         FontInfo font = ignore_font;
 433         font.setNumber(FONT_TOGGLE);
 434         toggleAndShow(cur, this, Font(font, ignore_language));
 435 }
 436
 437
 438 bool Text::isRTL(Buffer const & buffer, Paragraph const & par) const
 439 {
 440         return par.isRTL(buffer.params());
 441 }
 442
 443
 444 void Text::dispatch(Cursor & cur, FuncRequest & cmd)
 445 {
 446         LYXERR(Debug::ACTION, "Text::dispatch: cmd: " << cmd);
 447
 448         BufferView * bv = &cur.bv();
 449         TextMetrics & tm = bv->textMetrics(this);
 450         if (!tm.contains(cur.pit()))
 451                 lyx::dispatch(FuncRequest(LFUN_SCREEN_RECENTER));
 452
 453         // FIXME: We use the update flag to indicates wether a singlePar or a
 454         // full screen update is needed. We reset it here but shall we restore it
 455         // at the end?
 456         cur.noUpdate();
 457
 458         LASSERT(cur.text() == this, /**/);
 459         CursorSlice oldTopSlice = cur.top();
 460         bool oldBoundary = cur.boundary();
 461         bool sel = cur.selection();
 462         // Signals that, even if needsUpdate == false, an update of the
 463         // cursor paragraph is required
 464         bool singleParUpdate = lyxaction.funcHasFlag(cmd.action,
 465                 LyXAction::SingleParUpdate);
 466         // Signals that a full-screen update is required
 467         bool needsUpdate = !(lyxaction.funcHasFlag(cmd.action,
 468                 LyXAction::NoUpdate) || singleParUpdate);
 469
 470         switch (cmd.action) {
 471
 472         case LFUN_PARAGRAPH_MOVE_DOWN: {
 473                 pit_type const pit = cur.pit();
 474                 recUndo(cur, pit, pit + 1);
 475                 cur.finishUndo();
 476                 swap(pars_[pit], pars_[pit + 1]);
 477                 cur.buffer()->updateLabels();
 478                 needsUpdate = true;
 479                 ++cur.pit();
 480                 break;
 481         }
 482
 483         case LFUN_PARAGRAPH_MOVE_UP: {
 484                 pit_type const pit = cur.pit();
 485                 recUndo(cur, pit - 1, pit);
 486                 cur.finishUndo();
 487                 swap(pars_[pit], pars_[pit - 1]);
 488                 cur.buffer()->updateLabels();
 489                 --cur.pit();
 490                 needsUpdate = true;
 491                 break;
 492         }
 493
 494         case LFUN_APPENDIX: {
 495                 Paragraph & par = cur.paragraph();
 496                 bool start = !par.params().startOfAppendix();
 497
 498 // FIXME: The code below only makes sense at top level.
 499 // Should LFUN_APPENDIX be restricted to top-level paragraphs?
 500                 // ensure that we have only one start_of_appendix in this document
 501                 // FIXME: this don't work for multipart document!
 502                 for (pit_type tmp = 0, end = pars_.size(); tmp != end; ++tmp) {
 503                         if (pars_[tmp].params().startOfAppendix()) {
 504                                 recUndo(cur, tmp);
 505                                 pars_[tmp].params().startOfAppendix(false);
 506                                 break;
 507                         }
 508                 }
 509
 510                 cur.recordUndo();
 511                 par.params().startOfAppendix(start);
 512
 513                 // we can set the refreshing parameters now
 514                 cur.buffer()->updateLabels();
 515                 break;
 516         }
 517
 518         case LFUN_WORD_DELETE_FORWARD:
 519                 if (cur.selection())
 520                         cutSelection(cur, true, false);
 521                 else
 522                         deleteWordForward(cur);
 523                 finishChange(cur, false);
 524                 break;
 525
 526         case LFUN_WORD_DELETE_BACKWARD:
 527                 if (cur.selection())
 528                         cutSelection(cur, true, false);
 529                 else
 530                         deleteWordBackward(cur);
 531                 finishChange(cur, false);
 532                 break;
 533
 534         case LFUN_LINE_DELETE:
 535                 if (cur.selection())
 536                         cutSelection(cur, true, false);
 537                 else
 538                         tm.deleteLineForward(cur);
 539                 finishChange(cur, false);
 540                 break;
 541
 542         case LFUN_BUFFER_BEGIN:
 543         case LFUN_BUFFER_BEGIN_SELECT:
 544                 needsUpdate |= cur.selHandle(cmd.action == LFUN_BUFFER_BEGIN_SELECT);
 545                 if (cur.depth() == 1)
 546                         needsUpdate |= cursorTop(cur);
 547                 else
 548                         cur.undispatched();
 549                 cur.updateFlags(Update::FitCursor);
 550                 break;
 551
 552         case LFUN_BUFFER_END:
 553         case LFUN_BUFFER_END_SELECT:
 554                 needsUpdate |= cur.selHandle(cmd.action == LFUN_BUFFER_END_SELECT);
 555                 if (cur.depth() == 1)
 556                         needsUpdate |= cursorBottom(cur);
 557                 else
 558                         cur.undispatched();
 559                 cur.updateFlags(Update::FitCursor);
 560                 break;
 561
 562         case LFUN_CHAR_FORWARD:
 563         case LFUN_CHAR_FORWARD_SELECT:
 564                 //LYXERR0(" LFUN_CHAR_FORWARD[SEL]:\n" << cur);
 565                 needsUpdate |= cur.selHandle(cmd.action == LFUN_CHAR_FORWARD_SELECT);
 566                 needsUpdate |= cursorForward(cur);
 567
 568                 if (!needsUpdate && oldTopSlice == cur.top()
 569                                 && cur.boundary() == oldBoundary) {
 570                         cur.undispatched();
 571                         cmd = FuncRequest(LFUN_FINISHED_FORWARD);
 572                 }
 573                 break;
 574
 575         case LFUN_CHAR_BACKWARD:
 576         case LFUN_CHAR_BACKWARD_SELECT:
 577                 //lyxerr << "handle LFUN_CHAR_BACKWARD[_SELECT]:\n" << cur << endl;
 578                 needsUpdate |= cur.selHandle(cmd.action == LFUN_CHAR_BACKWARD_SELECT);
 579                 needsUpdate |= cursorBackward(cur);
 580
 581                 if (!needsUpdate && oldTopSlice == cur.top()
 582                         && cur.boundary() == oldBoundary) {
 583                         cur.undispatched();
 584                         cmd = FuncRequest(LFUN_FINISHED_BACKWARD);
 585                 }
 586                 break;
 587
 588         case LFUN_CHAR_LEFT:
 589         case LFUN_CHAR_LEFT_SELECT:
 590                 if (lyxrc.visual_cursor) {
 591                         needsUpdate |= cur.selHandle(cmd.action == LFUN_CHAR_LEFT_SELECT);
 592                         needsUpdate |= cursorVisLeft(cur);
 593                         if (!needsUpdate && oldTopSlice == cur.top()
 594                                         && cur.boundary() == oldBoundary) {
 595                                 cur.undispatched();
 596                                 cmd = FuncRequest(LFUN_FINISHED_LEFT);
 597                         }
 598                 } else {
 599                         if (reverseDirectionNeeded(cur)) {
 600                                 cmd.action = cmd.action == LFUN_CHAR_LEFT_SELECT ?
 601                                         LFUN_CHAR_FORWARD_SELECT : LFUN_CHAR_FORWARD;
 602                         } else {
 603                                 cmd.action = cmd.action == LFUN_CHAR_LEFT_SELECT ?
 604                                         LFUN_CHAR_BACKWARD_SELECT : LFUN_CHAR_BACKWARD;
 605                         }
 606                         dispatch(cur, cmd);
 607                         return;
 608                 }
 609                 break;
 610
 611         case LFUN_CHAR_RIGHT:
 612         case LFUN_CHAR_RIGHT_SELECT:
 613                 if (lyxrc.visual_cursor) {
 614                         needsUpdate |= cur.selHandle(cmd.action == LFUN_CHAR_RIGHT_SELECT);
 615                         needsUpdate |= cursorVisRight(cur);
 616                         if (!needsUpdate && oldTopSlice == cur.top()
 617                                         && cur.boundary() == oldBoundary) {
 618                                 cur.undispatched();
 619                                 cmd = FuncRequest(LFUN_FINISHED_RIGHT);
 620                         }
 621                 } else {
 622                         if (reverseDirectionNeeded(cur)) {
 623                                 cmd.action = cmd.action == LFUN_CHAR_RIGHT_SELECT ?
 624                                         LFUN_CHAR_BACKWARD_SELECT : LFUN_CHAR_BACKWARD;
 625                         } else {
 626                                 cmd.action = cmd.action == LFUN_CHAR_RIGHT_SELECT ?
 627                                         LFUN_CHAR_FORWARD_SELECT : LFUN_CHAR_FORWARD;
 628                         }
 629                         dispatch(cur, cmd);
 630                         return;
 631                 }
 632                 break;
 633
 634
 635         case LFUN_UP_SELECT:
 636         case LFUN_DOWN_SELECT:
 637         case LFUN_UP:
 638         case LFUN_DOWN: {
 639                 // stop/start the selection
 640                 bool select = cmd.action == LFUN_DOWN_SELECT ||
 641                         cmd.action == LFUN_UP_SELECT;
 642
 643                 // move cursor up/down
 644                 bool up = cmd.action == LFUN_UP_SELECT || cmd.action == LFUN_UP;
 645                 bool const atFirstOrLastRow = cur.atFirstOrLastRow(up);
 646
 647                 if (!atFirstOrLastRow) {
 648                         needsUpdate |= cur.selHandle(select);
 649                         cur.selHandle(select);
 650                         cur.upDownInText(up, needsUpdate);
 651                         needsUpdate |= cur.beforeDispatchCursor().inMathed();
 652                 } else {
 653                         // if the cursor cannot be moved up or down do not remove
 654                         // the selection right now, but wait for the next dispatch.
 655                         if (select)
 656                                 needsUpdate |= cur.selHandle(select);
 657                         cur.upDownInText(up, needsUpdate);
 658                         cur.undispatched();
 659                 }
 660
 661                 break;
 662         }
 663
 664         case LFUN_PARAGRAPH_UP:
 665         case LFUN_PARAGRAPH_UP_SELECT:
 666                 needsUpdate |= cur.selHandle(cmd.action == LFUN_PARAGRAPH_UP_SELECT);
 667                 needsUpdate |= cursorUpParagraph(cur);
 668                 break;
 669
 670         case LFUN_PARAGRAPH_DOWN:
 671         case LFUN_PARAGRAPH_DOWN_SELECT:
 672                 needsUpdate |= cur.selHandle(cmd.action == LFUN_PARAGRAPH_DOWN_SELECT);
 673                 needsUpdate |= cursorDownParagraph(cur);
 674                 break;
 675
 676         case LFUN_LINE_BEGIN:
 677         case LFUN_LINE_BEGIN_SELECT:
 678                 needsUpdate |= cur.selHandle(cmd.action == LFUN_LINE_BEGIN_SELECT);
 679                 needsUpdate |= tm.cursorHome(cur);
 680                 break;
 681
 682         case LFUN_LINE_END:
 683         case LFUN_LINE_END_SELECT:
 684                 needsUpdate |= cur.selHandle(cmd.action == LFUN_LINE_END_SELECT);
 685                 needsUpdate |= tm.cursorEnd(cur);
 686                 break;
 687
 688         case LFUN_WORD_RIGHT:
 689         case LFUN_WORD_RIGHT_SELECT:
 690                 if (lyxrc.visual_cursor) {
 691                         needsUpdate |= cur.selHandle(cmd.action == LFUN_WORD_RIGHT_SELECT);
 692                         needsUpdate |= cursorVisRightOneWord(cur);
 693                         if (!needsUpdate && oldTopSlice == cur.top()
 694                                         && cur.boundary() == oldBoundary) {
 695                                 cur.undispatched();
 696                                 cmd = FuncRequest(LFUN_FINISHED_RIGHT);
 697                         }
 698                 } else {
 699                         if (reverseDirectionNeeded(cur)) {
 700                                 cmd.action = cmd.action == LFUN_WORD_RIGHT_SELECT ?
 701                                                 LFUN_WORD_BACKWARD_SELECT : LFUN_WORD_BACKWARD;
 702                         } else {
 703                                 cmd.action = cmd.action == LFUN_WORD_RIGHT_SELECT ?
 704                                                 LFUN_WORD_FORWARD_SELECT : LFUN_WORD_FORWARD;
 705                         }
 706                         dispatch(cur, cmd);
 707                         return;
 708                 }
 709                 break;
 710
 711         case LFUN_WORD_FORWARD:
 712         case LFUN_WORD_FORWARD_SELECT:
 713                 needsUpdate |= cur.selHandle(cmd.action == LFUN_WORD_FORWARD_SELECT);
 714                 needsUpdate |= cursorForwardOneWord(cur);
 715                 break;
 716
 717         case LFUN_WORD_LEFT:
 718         case LFUN_WORD_LEFT_SELECT:
 719                 if (lyxrc.visual_cursor) {
 720                         needsUpdate |= cur.selHandle(cmd.action == LFUN_WORD_LEFT_SELECT);
 721                         needsUpdate |= cursorVisLeftOneWord(cur);
 722                         if (!needsUpdate && oldTopSlice == cur.top()
 723                                         && cur.boundary() == oldBoundary) {
 724                                 cur.undispatched();
 725                                 cmd = FuncRequest(LFUN_FINISHED_LEFT);
 726                         }
 727                 } else {
 728                         if (reverseDirectionNeeded(cur)) {
 729                                 cmd.action = cmd.action == LFUN_WORD_LEFT_SELECT ?
 730                                                 LFUN_WORD_FORWARD_SELECT : LFUN_WORD_FORWARD;
 731                         } else {
 732                                 cmd.action = cmd.action == LFUN_WORD_LEFT_SELECT ?
 733                                                 LFUN_WORD_BACKWARD_SELECT : LFUN_WORD_BACKWARD;
 734                         }
 735                         dispatch(cur, cmd);
 736                         return;
 737                 }
 738                 break;
 739
 740         case LFUN_WORD_BACKWARD:
 741         case LFUN_WORD_BACKWARD_SELECT:
 742                 needsUpdate |= cur.selHandle(cmd.action == LFUN_WORD_BACKWARD_SELECT);
 743                 needsUpdate |= cursorBackwardOneWord(cur);
 744                 break;
 745
 746         case LFUN_WORD_SELECT: {
 747                 selectWord(cur, WHOLE_WORD);
 748                 finishChange(cur, true);
 749                 break;
 750         }
 751
 752         case LFUN_NEWLINE_INSERT: {
 753                 InsetNewlineParams inp;
 754                 docstring arg = cmd.argument();
 755                 // this avoids a double undo
 756                 // FIXME: should not be needed, ideally
 757                 if (!cur.selection())
 758                         cur.recordUndo();
 759                 cap::replaceSelection(cur);
 760                 if (arg == "linebreak")
 761                         inp.kind = InsetNewlineParams::LINEBREAK;
 762                 else
 763                         inp.kind = InsetNewlineParams::NEWLINE;
 764                 cur.insert(new InsetNewline(inp));
 765                 cur.posForward();
 766                 moveCursor(cur, false);
 767                 break;
 768         }
 769
 770         case LFUN_CHAR_DELETE_FORWARD:
 771                 if (!cur.selection()) {
 772                         if (cur.pos() == cur.paragraph().size())
 773                                 // Par boundary, force full-screen update
 774                                 singleParUpdate = false;
 775                         needsUpdate |= erase(cur);
 776                         cur.resetAnchor();
 777                         // It is possible to make it a lot faster still
 778                         // just comment out the line below...
 779                 } else {
 780                         cutSelection(cur, true, false);
 781                         singleParUpdate = false;
 782                 }
 783                 moveCursor(cur, false);
 784                 break;
 785
 786         case LFUN_CHAR_DELETE_BACKWARD:
 787                 if (!cur.selection()) {
 788                         if (bv->getIntl().getTransManager().backspace()) {
 789                                 // Par boundary, full-screen update
 790                                 if (cur.pos() == 0)
 791                                         singleParUpdate = false;
 792                                 needsUpdate |= backspace(cur);
 793                                 cur.resetAnchor();
 794                                 // It is possible to make it a lot faster still
 795                                 // just comment out the line below...
 796                         }
 797                 } else {
 798                         cutSelection(cur, true, false);
 799                         singleParUpdate = false;
 800                 }
 801                 break;
 802
 803         case LFUN_BREAK_PARAGRAPH:
 804                 cap::replaceSelection(cur);
 805                 breakParagraph(cur, cmd.argument() == "inverse");
 806                 cur.resetAnchor();
 807                 break;
 808
 809         // TODO
 810         // With the creation of LFUN_PARAGRAPH_PARAMS, this is now redundant,
 811         // as its duties can be performed there. Should it be removed??
 812         // FIXME For now, it can just dispatch LFUN_PARAGRAPH_PARAMS...
 813         case LFUN_PARAGRAPH_SPACING: {
 814                 Paragraph & par = cur.paragraph();
 815                 Spacing::Space cur_spacing = par.params().spacing().getSpace();
 816                 string cur_value = "1.0";
 817                 if (cur_spacing == Spacing::Other)
 818                         cur_value = par.params().spacing().getValueAsString();
 819
 820                 istringstream is(to_utf8(cmd.argument()));
 821                 string tmp;
 822                 is >> tmp;
 823                 Spacing::Space new_spacing = cur_spacing;
 824                 string new_value = cur_value;
 825                 if (tmp.empty()) {
 826                         lyxerr << "Missing argument to `paragraph-spacing'"
 827                                << endl;
 828                 } else if (tmp == "single") {
 829                         new_spacing = Spacing::Single;
 830                 } else if (tmp == "onehalf") {
 831                         new_spacing = Spacing::Onehalf;
 832                 } else if (tmp == "double") {
 833                         new_spacing = Spacing::Double;
 834                 } else if (tmp == "other") {
 835                         new_spacing = Spacing::Other;
 836                         string tmpval = "0.0";
 837                         is >> tmpval;
 838                         lyxerr << "new_value = " << tmpval << endl;
 839                         if (tmpval != "0.0")
 840                                 new_value = tmpval;
 841                 } else if (tmp == "default") {
 842                         new_spacing = Spacing::Default;
 843                 } else {
 844                         lyxerr << to_utf8(_("Unknown spacing argument: "))
 845                                << to_utf8(cmd.argument()) << endl;
 846                 }
 847                 if (cur_spacing != new_spacing || cur_value != new_value)
 848                         par.params().spacing(Spacing(new_spacing, new_value));
 849                 break;
 850         }
 851
 852         case LFUN_INSET_INSERT: {
 853                 cur.recordUndo();
 854
 855                 // We have to avoid triggering InstantPreview loading
 856                 // before inserting into the document. See bug #5626.
 857                 bool loaded = bv->buffer().isFullyLoaded();
 858                 bv->buffer().setFullyLoaded(false);
 859                 Inset * inset = createInset(bv->buffer(), cmd);
 860                 bv->buffer().setFullyLoaded(loaded);
 861
 862                 if (inset) {
 863                         // FIXME (Abdel 01/02/2006):
 864                         // What follows would be a partial fix for bug 2154:
 865                         //   http://bugzilla.lyx.org/show_bug.cgi?id=2154
 866                         // This automatically put the label inset _after_ a
 867                         // numbered section. It should be possible to extend the mechanism
 868                         // to any kind of LateX environement.
 869                         // The correct way to fix that bug would be at LateX generation.
 870                         // I'll let the code here for reference as it could be used for some
 871                         // other feature like "automatic labelling".
 872                         /*
 873                         Paragraph & par = pars_[cur.pit()];
 874                         if (inset->lyxCode() == LABEL_CODE
 875                                 && par.layout().labeltype == LABEL_COUNTER) {
 876                                 // Go to the end of the paragraph
 877                                 // Warning: Because of Change-Tracking, the last
 878                                 // position is 'size()' and not 'size()-1':
 879                                 cur.pos() = par.size();
 880                                 // Insert a new paragraph
 881                                 FuncRequest fr(LFUN_BREAK_PARAGRAPH);
 882                                 dispatch(cur, fr);
 883                         }
 884                         */
 885                         if (cur.selection())
 886                                 cutSelection(cur, true, false);
 887                         cur.insert(inset);
 888                         cur.posForward();
 889
 890                         // trigger InstantPreview now
 891                         if (inset->lyxCode() == EXTERNAL_CODE) {
 892                                 InsetExternal & ins = static_cast<InsetExternal &>(*inset);
 893                                 ins.updatePreview();
 894                         }
 895                 }
 896
 897                 break;
 898         }
 899
 900         case LFUN_INSET_DISSOLVE: {
 901                 // first, try if there's an inset at cursor
 902                 // FIXME: this first part should be moved to
 903                 // a LFUN_NEXT_INSET_DISSOLVE, or be called via
 904                 // some generic "next-inset inset-dissolve"
 905                 Inset * inset = cur.nextInset();
 906                 if (inset && inset->isActive()) {
 907                         Cursor tmpcur = cur;
 908                         tmpcur.pushBackward(*inset);
 909                         inset->dispatch(tmpcur, cmd);
 910                         if (tmpcur.result().dispatched()) {
 911                                 cur.dispatched();
 912                                 break;
 913                         }
 914                 }
 915                 // if it did not work, try the underlying inset
 916                 if (dissolveInset(cur)) {
 917                         needsUpdate = true;
 918                         break;
 919                 }
 920                 // if it did not work, do nothing.
 921                 break;
 922         }
 923
 924         case LFUN_INSET_SETTINGS: {
 925                 Inset & inset = cur.inset();
 926                 if (cmd.getArg(0) == insetName(inset.lyxCode())) {
 927                         // This inset dialog has been explicitely requested.
 928                         inset.showInsetDialog(bv);
 929                         break;
 930                 }
 931                 // else, if there is an inset at the cursor, access this
 932                 Inset * next_inset = cur.nextInset();
 933                 if (next_inset) {
 934                         next_inset->showInsetDialog(bv);
 935                         break;
 936                 }
 937                 // if not then access the underlying inset.
 938                 inset.showInsetDialog(bv);
 939                 break;
 940         }
 941
 942         case LFUN_SET_GRAPHICS_GROUP: {
 943                 InsetGraphics * ins = graphics::getCurrentGraphicsInset(cur);
 944                 if (!ins)
 945                         break;
 946
 947                 cur.recordUndo();
 948
 949                 string id = to_utf8(cmd.argument());
 950                 string grp = graphics::getGroupParams(bv->buffer(), id);
 951                 InsetGraphicsParams tmp, inspar = ins->getParams();
 952
 953                 if (id.empty())
 954                         inspar.groupId = to_utf8(cmd.argument());
 955                 else {
 956                         InsetGraphics::string2params(grp, bv->buffer(), tmp);
 957                         tmp.filename = inspar.filename;
 958                         inspar = tmp;
 959                 }
 960
 961                 ins->setParams(inspar);
 962         }
 963
 964         case LFUN_SPACE_INSERT:
 965                 if (cur.paragraph().layout().free_spacing)
 966                         insertChar(cur, ' ');
 967                 else {
 968                         doInsertInset(cur, this, cmd, false, false);
 969                         cur.posForward();
 970                 }
 971                 moveCursor(cur, false);
 972                 break;
 973
 974         case LFUN_SPECIALCHAR_INSERT: {
 975                 string const name = to_utf8(cmd.argument());
 976                 if (name == "hyphenation")
 977                         specialChar(cur, InsetSpecialChar::HYPHENATION);
 978                 else if (name == "ligature-break")
 979                         specialChar(cur, InsetSpecialChar::LIGATURE_BREAK);
 980                 else if (name == "slash")
 981                         specialChar(cur, InsetSpecialChar::SLASH);
 982                 else if (name == "nobreakdash")
 983                         specialChar(cur, InsetSpecialChar::NOBREAKDASH);
 984                 else if (name == "dots")
 985                         specialChar(cur, InsetSpecialChar::LDOTS);
 986                 else if (name == "end-of-sentence")
 987                         specialChar(cur, InsetSpecialChar::END_OF_SENTENCE);
 988                 else if (name == "menu-separator")
 989                         specialChar(cur, InsetSpecialChar::MENU_SEPARATOR);
 990                 else if (name.empty())
 991                         lyxerr << "LyX function 'specialchar-insert' needs an argument." << endl;
 992                 else
 993                         lyxerr << "Wrong argument for LyX function 'specialchar-insert'." << endl;
 994                 break;
 995         }
 996
 997         case LFUN_WORD_UPCASE:
 998                 changeCase(cur, text_uppercase);
 999                 break;
1000
1001         case LFUN_WORD_LOWCASE:
1002                 changeCase(cur, text_lowercase);
1003                 break;
1004
1005         case LFUN_WORD_CAPITALIZE:
1006                 changeCase(cur, text_capitalization);
1007                 break;
1008
1009         case LFUN_CHARS_TRANSPOSE:
1010                 charsTranspose(cur);
1011                 break;
1012
1013         case LFUN_PASTE: {
1014                 cur.message(_("Paste"));
1015                 LASSERT(cur.selBegin().idx() == cur.selEnd().idx(), /**/);
1016                 cap::replaceSelection(cur);
1017
1018                 // without argument?
1019                 string const arg = to_utf8(cmd.argument());
1020                 if (arg.empty()) {
1021                         if (theClipboard().isInternal())
1022                                 pasteFromStack(cur, bv->buffer().errorList("Paste"), 0);
1023                         else if (theClipboard().hasGraphicsContents())
1024                                 pasteClipboardGraphics(cur, bv->buffer().errorList("Paste"));
1025                         else
1026                                 pasteClipboardText(cur, bv->buffer().errorList("Paste"));
1027                 } else if (isStrUnsignedInt(arg)) {
1028                         // we have a numerical argument
1029                         pasteFromStack(cur, bv->buffer().errorList("Paste"),
1030                                        convert<unsigned int>(arg));
1031                 } else {
1032                         Clipboard::GraphicsType type = Clipboard::AnyGraphicsType;
1033                         if (arg == "pdf")
1034                                 type = Clipboard::PdfGraphicsType;
1035                         else if (arg == "png")
1036                                 type = Clipboard::PngGraphicsType;
1037                         else if (arg == "jpeg")
1038                                 type = Clipboard::JpegGraphicsType;
1039                         else if (arg == "linkback")
1040                                 type = Clipboard::LinkBackGraphicsType;
1041                         else
1042                                 LASSERT(false, /**/);
1043
1044                         pasteClipboardGraphics(cur, bv->buffer().errorList("Paste"), type);
1045                 }
1046
1047                 bv->buffer().errors("Paste");
1048                 cur.clearSelection(); // bug 393
1049                 cur.finishUndo();
1050                 break;
1051         }
1052
1053         case LFUN_CUT:
1054                 cutSelection(cur, true, true);
1055                 cur.message(_("Cut"));
1056                 break;
1057
1058         case LFUN_COPY:
1059                 copySelection(cur);
1060                 cur.message(_("Copy"));
1061                 break;
1062
1063         case LFUN_SERVER_GET_XY:
1064                 cur.message(from_utf8(
1065                         convert<string>(tm.cursorX(cur.top(), cur.boundary()))
1066                         + ' ' + convert<string>(tm.cursorY(cur.top(), cur.boundary()))));
1067                 break;
1068
1069         case LFUN_SERVER_SET_XY: {
1070                 int x = 0;
1071                 int y = 0;
1072                 istringstream is(to_utf8(cmd.argument()));
1073                 is >> x >> y;
1074                 if (!is)
1075                         lyxerr << "SETXY: Could not parse coordinates in '"
1076                                << to_utf8(cmd.argument()) << endl;
1077                 else
1078                         tm.setCursorFromCoordinates(cur, x, y);
1079                 break;
1080         }
1081
1082         case LFUN_SERVER_GET_LAYOUT:
1083                 cur.message(cur.paragraph().layout().name());
1084                 break;
1085
1086         case LFUN_LAYOUT: {
1087                 docstring layout = cmd.argument();
1088                 LYXERR(Debug::INFO, "LFUN_LAYOUT: (arg) " << to_utf8(layout));
1089
1090                 Paragraph const & para = cur.paragraph();
1091                 docstring const old_layout = para.layout().name();
1092                 DocumentClass const & tclass = bv->buffer().params().documentClass();
1093
1094                 if (layout.empty())
1095                         layout = tclass.defaultLayoutName();
1096
1097                 if (para.forcePlainLayout())
1098                         // in this case only the empty layout is allowed
1099                         layout = tclass.plainLayoutName();
1100                 else if (para.usePlainLayout()) {
1101                         // in this case, default layout maps to empty layout
1102                         if (layout == tclass.defaultLayoutName())
1103                                 layout = tclass.plainLayoutName();
1104                 } else {
1105                         // otherwise, the empty layout maps to the default
1106                         if (layout == tclass.plainLayoutName())
1107                                 layout = tclass.defaultLayoutName();
1108                 }
1109
1110                 bool hasLayout = tclass.hasLayout(layout);
1111
1112                 // If the entry is obsolete, use the new one instead.
1113                 if (hasLayout) {
1114                         docstring const & obs = tclass[layout].obsoleted_by();
1115                         if (!obs.empty())
1116                                 layout = obs;
1117                 }
1118
1119                 if (!hasLayout) {
1120                         cur.errorMessage(from_utf8(N_("Layout ")) + cmd.argument() +
1121                                 from_utf8(N_(" not known")));
1122                         break;
1123                 }
1124
1125                 bool change_layout = (old_layout != layout);
1126
1127                 if (!change_layout && cur.selection() &&
1128                         cur.selBegin().pit() != cur.selEnd().pit())
1129                 {
1130                         pit_type spit = cur.selBegin().pit();
1131                         pit_type epit = cur.selEnd().pit() + 1;
1132                         while (spit != epit) {
1133                                 if (pars_[spit].layout().name() != old_layout) {
1134                                         change_layout = true;
1135                                         break;
1136                                 }
1137                                 ++spit;
1138                         }
1139                 }
1140
1141                 if (change_layout)
1142                         setLayout(cur, layout);
1143
1144                 break;
1145         }
1146
1147         case LFUN_CLIPBOARD_PASTE:
1148                 cur.clearSelection();
1149                 pasteClipboardText(cur, bv->buffer().errorList("Paste"),
1150                                cmd.argument() == "paragraph");
1151                 bv->buffer().errors("Paste");
1152                 break;
1153
1154         case LFUN_PRIMARY_SELECTION_PASTE:
1155                 pasteString(cur, theSelection().get(),
1156                             cmd.argument() == "paragraph");
1157                 break;
1158
1159         case LFUN_UNICODE_INSERT: {
1160                 if (cmd.argument().empty())
1161                         break;
1162                 docstring hexstring = cmd.argument();
1163                 if (isHex(hexstring)) {
1164                         char_type c = hexToInt(hexstring);
1165                         if (c >= 32 && c < 0x10ffff) {
1166                                 lyxerr << "Inserting c: " << c << endl;
1167                                 docstring s = docstring(1, c);
1168                                 lyx::dispatch(FuncRequest(LFUN_SELF_INSERT, s));
1169                         }
1170                 }
1171                 break;
1172         }
1173
1174         case LFUN_QUOTE_INSERT: {
1175                 Paragraph & par = cur.paragraph();
1176                 pos_type pos = cur.pos();
1177                 BufferParams const & bufparams = bv->buffer().params();
1178                 Layout const & style = par.layout();
1179                 if (!style.pass_thru
1180                     && par.getFontSettings(bufparams, pos).language()->lang() != "hebrew") {
1181                         // this avoids a double undo
1182                         // FIXME: should not be needed, ideally
1183                         if (!cur.selection())
1184                                 cur.recordUndo();
1185                         cap::replaceSelection(cur);
1186                         pos = cur.pos();
1187                         char_type c;
1188                         if (pos == 0)
1189                                 c = ' ';
1190                         else if (cur.prevInset() && cur.prevInset()->isSpace())
1191                                 c = ' ';
1192                         else
1193                                 c = par.getChar(pos - 1);
1194                         string arg = to_utf8(cmd.argument());
1195                         cur.insert(new InsetQuotes(bv->buffer(), c, (arg == "single")
1196                                 ? InsetQuotes::SingleQuotes : InsetQuotes::DoubleQuotes));
1197                         cur.posForward();
1198                 }
1199                 else
1200                         lyx::dispatch(FuncRequest(LFUN_SELF_INSERT, "\""));
1201                 break;
1202         }
1203
1204         case LFUN_DATE_INSERT: {
1205                 string const format = cmd.argument().empty()
1206                         ? lyxrc.date_insert_format : to_utf8(cmd.argument());
1207                 string const time = formatted_time(current_time(), format);
1208                 lyx::dispatch(FuncRequest(LFUN_SELF_INSERT, time));
1209                 break;
1210         }
1211
1212         case LFUN_MOUSE_TRIPLE:
1213                 if (cmd.button() == mouse_button::button1) {
1214                         tm.cursorHome(cur);
1215                         cur.resetAnchor();
1216                         tm.cursorEnd(cur);
1217                         cur.setSelection();
1218                         bv->cursor() = cur;
1219                 }
1220                 break;
1221
1222         case LFUN_MOUSE_DOUBLE:
1223                 if (cmd.button() == mouse_button::button1) {
1224                         selectWord(cur, WHOLE_WORD_STRICT);
1225                         bv->cursor() = cur;
1226                 }
1227                 break;
1228
1229         // Single-click on work area
1230         case LFUN_MOUSE_PRESS:
1231                 // We are not marking a selection with the keyboard in any case.
1232                 cur.bv().cursor().setMark(false);
1233                 switch (cmd.button()) {
1234                 case mouse_button::button1:
1235                         // Set the cursor
1236                         if (!bv->mouseSetCursor(cur, cmd.argument() == "region-select"))
1237                                 cur.updateFlags(Update::SinglePar | Update::FitCursor);
1238                         break;
1239
1240                 case mouse_button::button2:
1241                         // Middle mouse pasting.
1242                         bv->mouseSetCursor(cur);
1243                         if (!cap::selection()) {
1244                                 // There is no local selection in the current buffer, so try to
1245                                 // paste primary selection instead.
1246                                 lyx::dispatch(FuncRequest(LFUN_PRIMARY_SELECTION_PASTE,
1247                                         "paragraph"));
1248                                 // Nothing else to do.
1249                                 cur.noUpdate();
1250                                 return;
1251                         }
1252                         // Copy the selection buffer to the clipboard stack, because we want it
1253                         // to appear in the "Edit->Paste recent" menu.
1254                         cap::copySelectionToStack();
1255                         cap::pasteSelection(bv->cursor(), bv->buffer().errorList("Paste"));
1256                         cur.updateFlags(Update::Force | Update::FitCursor);
1257                         bv->buffer().errors("Paste");
1258                         bv->buffer().markDirty();
1259                         bv->cursor().finishUndo();
1260                         break;
1261
1262                 case mouse_button::button3: {
1263                         Cursor const & bvcur = cur.bv().cursor();
1264                         // Don't do anything if we right-click a
1265                         // selection, a context menu will popup.
1266                         if (bvcur.selection() && cur >= bvcur.selectionBegin()
1267                             && cur < bvcur.selectionEnd()) {
1268                                 cur.noUpdate();
1269                                 return;
1270                         }
1271                         if (!bv->mouseSetCursor(cur, false))
1272                                 cur.updateFlags(Update::SinglePar | Update::FitCursor);
1273                         break;
1274                 }
1275
1276                 default:
1277                         break;
1278                 } // switch (cmd.button())
1279                 break;
1280
1281         case LFUN_MOUSE_MOTION: {
1282                 // Mouse motion with right or middle mouse do nothing for now.
1283                 if (cmd.button() != mouse_button::button1) {
1284                         cur.noUpdate();
1285                         return;
1286                 }
1287                 // ignore motions deeper nested than the real anchor
1288                 Cursor & bvcur = cur.bv().cursor();
1289                 if (!bvcur.anchor_.hasPart(cur)) {
1290                         cur.undispatched();
1291                         break;
1292                 }
1293                 CursorSlice old = bvcur.top();
1294
1295                 int const wh = bv->workHeight();
1296                 int const y = max(0, min(wh - 1, cmd.y));
1297
1298                 tm.setCursorFromCoordinates(cur, cmd.x, y);
1299                 cur.setTargetX(cmd.x);
1300                 if (cmd.y >= wh)
1301                         lyx::dispatch(FuncRequest(LFUN_DOWN_SELECT));
1302                 else if (cmd.y < 0)
1303                         lyx::dispatch(FuncRequest(LFUN_UP_SELECT));
1304                 // This is to allow jumping over large insets
1305                 if (cur.top() == old) {
1306                         if (cmd.y >= wh)
1307                                 lyx::dispatch(FuncRequest(LFUN_DOWN_SELECT));
1308                         else if (cmd.y < 0)
1309                                 lyx::dispatch(FuncRequest(LFUN_UP_SELECT));
1310                 }
1311                 // We continue with our existing selection or start a new one, so don't
1312                 // reset the anchor.
1313                 bvcur.setCursor(cur);
1314                 bvcur.setSelection(true);
1315                 if (cur.top() == old) {
1316                         // We didn't move one iota, so no need to update the screen.
1317                         cur.updateFlags(Update::SinglePar | Update::FitCursor);
1318                         //cur.noUpdate();
1319                         return;
1320                 }
1321                 break;
1322         }
1323
1324         case LFUN_MOUSE_RELEASE:
1325                 switch (cmd.button()) {
1326                 case mouse_button::button1:
1327                         // Cursor was set at LFUN_MOUSE_PRESS or LFUN_MOUSE_MOTION time.
1328                         // If there is a new selection, update persistent selection;
1329                         // otherwise, single click does not clear persistent selection
1330                         // buffer.
1331                         if (cur.selection()) {
1332                                 // Finish selection. If double click,
1333                                 // cur is moved to the end of word by
1334                                 // selectWord but bvcur is current
1335                                 // mouse position.
1336                                 cur.bv().cursor().setSelection();
1337                                 // We might have removed an empty but drawn selection
1338                                 // (probably a margin)
1339                                 cur.updateFlags(Update::SinglePar | Update::FitCursor);
1340                         } else
1341                                 cur.noUpdate();
1342                         // FIXME: We could try to handle drag and drop of selection here.
1343                         return;
1344
1345                 case mouse_button::button2:
1346                         // Middle mouse pasting is handled at mouse press time,
1347                         // see LFUN_MOUSE_PRESS.
1348                         cur.noUpdate();
1349                         return;
1350
1351                 case mouse_button::button3:
1352                         // Cursor was set at LFUN_MOUSE_PRESS time.
1353                         // FIXME: If there is a selection we could try to handle a special
1354                         // drag & drop context menu.
1355                         cur.noUpdate();
1356                         return;
1357
1358                 case mouse_button::none:
1359                 case mouse_button::button4:
1360                 case mouse_button::button5:
1361                         break;
1362                 } // switch (cmd.button())
1363
1364                 break;
1365
1366         case LFUN_SELF_INSERT: {
1367                 if (cmd.argument().empty())
1368                         break;
1369
1370                 // Automatically delete the currently selected
1371                 // text and replace it with what is being
1372                 // typed in now. Depends on lyxrc settings
1373                 // "auto_region_delete", which defaults to
1374                 // true (on).
1375
1376                 if (lyxrc.auto_region_delete && cur.selection())
1377                         cutSelection(cur, false, false);
1378
1379                 cur.clearSelection();
1380
1381                 docstring::const_iterator cit = cmd.argument().begin();
1382                 docstring::const_iterator const end = cmd.argument().end();
1383                 for (; cit != end; ++cit)
1384                         bv->translateAndInsert(*cit, this, cur);
1385
1386                 cur.resetAnchor();
1387                 moveCursor(cur, false);
1388                 break;
1389         }
1390
1391         case LFUN_HYPERLINK_INSERT: {
1392                 InsetCommandParams p(HYPERLINK_CODE);
1393                 docstring content;
1394                 if (cur.selection()) {
1395                         content = cur.selectionAsString(false);
1396                         cutSelection(cur, true, false);
1397                 }
1398                 p["target"] = (cmd.argument().empty()) ?
1399                         content : cmd.argument();
1400                 string const data = InsetCommand::params2string("href", p);
1401                 if (p["target"].empty()) {
1402                         bv->showDialog("href", data);
1403                 } else {
1404                         FuncRequest fr(LFUN_INSET_INSERT, data);
1405                         dispatch(cur, fr);
1406                 }
1407                 break;
1408         }
1409
1410         case LFUN_LABEL_INSERT: {
1411                 InsetCommandParams p(LABEL_CODE);
1412                 // Try to generate a valid label
1413                 p["name"] = (cmd.argument().empty()) ?
1414                         cur.getPossibleLabel() :
1415                         cmd.argument();
1416                 string const data = InsetCommand::params2string("label", p);
1417
1418                 if (cmd.argument().empty()) {
1419                         bv->showDialog("label", data);
1420                 } else {
1421                         FuncRequest fr(LFUN_INSET_INSERT, data);
1422                         dispatch(cur, fr);
1423                 }
1424                 break;
1425         }
1426
1427         case LFUN_INFO_INSERT: {
1428                 Inset * inset;
1429                 if (cmd.argument().empty() && cur.selection()) {
1430                         // if command argument is empty use current selection as parameter.
1431                         docstring ds = cur.selectionAsString(false);
1432                         cutSelection(cur, true, false);
1433                         FuncRequest cmd0(cmd, ds);
1434                         inset = createInset(cur.bv().buffer(), cmd0);
1435                 } else {
1436                         inset = createInset(cur.bv().buffer(), cmd);
1437                 }
1438                 if (!inset)
1439                         break;
1440                 insertInset(cur, inset);
1441                 cur.posForward();
1442                 break;
1443         }
1444         case LFUN_CAPTION_INSERT:
1445         case LFUN_FOOTNOTE_INSERT:
1446         case LFUN_NOTE_INSERT:
1447         case LFUN_FLEX_INSERT:
1448         case LFUN_BOX_INSERT:
1449         case LFUN_BRANCH_INSERT:
1450         case LFUN_ERT_INSERT:
1451         case LFUN_LISTING_INSERT:
1452         case LFUN_MARGINALNOTE_INSERT:
1453         case LFUN_OPTIONAL_INSERT:
1454         case LFUN_INDEX_INSERT:
1455                 // Open the inset, and move the current selection
1456                 // inside it.
1457                 doInsertInset(cur, this, cmd, true, true);
1458                 cur.posForward();
1459                 // Some insets are numbered, others are shown in the outline pane so
1460                 // let's update the labels and the toc backend.
1461                 bv->buffer().updateLabels();
1462                 break;
1463
1464         case LFUN_TABULAR_INSERT:
1465                 // if there were no arguments, just open the dialog
1466                 if (doInsertInset(cur, this, cmd, false, true))
1467                         cur.posForward();
1468                 else
1469                         bv->showDialog("tabularcreate");
1470
1471                 break;
1472
1473         case LFUN_FLOAT_INSERT:
1474         case LFUN_FLOAT_WIDE_INSERT:
1475         case LFUN_WRAP_INSERT: {
1476                 // will some text be moved into the inset?
1477                 bool content = cur.selection();
1478
1479                 doInsertInset(cur, this, cmd, true, true);
1480                 cur.posForward();
1481
1482                 // If some text is moved into the inset, doInsertInset
1483                 // puts the cursor outside the inset. To insert the
1484                 // caption we put it back into the inset.
1485                 if (content)
1486                         cur.backwardPos();
1487
1488                 ParagraphList & pars = cur.text()->paragraphs();
1489
1490                 DocumentClass const & tclass = bv->buffer().params().documentClass();
1491
1492                 // add a separate paragraph for the caption inset
1493                 pars.push_back(Paragraph());
1494                 pars.back().setInsetOwner(&pars[0].inInset());
1495                 pars.back().setPlainOrDefaultLayout(tclass);
1496                 int cap_pit = pars.size() - 1;
1497
1498                 // if an empty inset was created, we create an additional empty
1499                 // paragraph at the bottom so that the user can choose where to put
1500                 // the graphics (or table).
1501                 if (!content) {
1502                         pars.push_back(Paragraph());
1503                         pars.back().setInsetOwner(&pars[0].inInset());
1504                         pars.back().setPlainOrDefaultLayout(tclass);
1505                 }
1506
1507                 // reposition the cursor to the caption
1508                 cur.pit() = cap_pit;
1509                 cur.pos() = 0;
1510                 // FIXME: This Text/Cursor dispatch handling is a mess!
1511                 // We cannot use Cursor::dispatch here it needs access to up to
1512                 // date metrics.
1513                 FuncRequest cmd_caption(LFUN_CAPTION_INSERT);
1514                 doInsertInset(cur, cur.text(), cmd_caption, true, false);
1515                 bv->buffer().updateLabels();
1516                 cur.updateFlags(Update::Force);
1517                 // FIXME: When leaving the Float (or Wrap) inset we should
1518                 // delete any empty paragraph left above or below the
1519                 // caption.
1520                 break;
1521         }
1522
1523         case LFUN_NOMENCL_INSERT: {
1524                 InsetCommandParams p(NOMENCL_CODE);
1525                 if (cmd.argument().empty())
1526                         p["symbol"] = bv->cursor().innerText()->getStringToIndex(bv->cursor());
1527                 else
1528                         p["symbol"] = cmd.argument();
1529                 string const data = InsetCommand::params2string("nomenclature", p);
1530                 bv->showDialog("nomenclature", data);
1531                 break;
1532         }
1533
1534         case LFUN_INDEX_PRINT:
1535         case LFUN_NOMENCL_PRINT:
1536         case LFUN_TOC_INSERT:
1537         case LFUN_LINE_INSERT:
1538         case LFUN_NEWPAGE_INSERT:
1539                 // do nothing fancy
1540                 doInsertInset(cur, this, cmd, false, false);
1541                 cur.posForward();
1542                 break;
1543
1544         case LFUN_DEPTH_DECREMENT:
1545                 changeDepth(cur, DEC_DEPTH);
1546                 break;
1547
1548         case LFUN_DEPTH_INCREMENT:
1549                 changeDepth(cur, INC_DEPTH);
1550                 break;
1551
1552         case LFUN_MATH_DISPLAY:
1553                 mathDispatch(cur, cmd, true);
1554                 break;
1555
1556         case LFUN_REGEXP_MODE:
1557                 regexpDispatch(cur, cmd);
1558                 break;
1559
1560         case LFUN_MATH_MODE:
1561                 if (cmd.argument() == "on")
1562                         // don't pass "on" as argument
1563                         mathDispatch(cur, FuncRequest(LFUN_MATH_MODE), false);
1564                 else
1565                         mathDispatch(cur, cmd, false);
1566                 break;
1567
1568         case LFUN_MATH_MACRO:
1569                 if (cmd.argument().empty())
1570                         cur.errorMessage(from_utf8(N_("Missing argument")));
1571                 else {
1572                         string s = to_utf8(cmd.argument());
1573                         string const s1 = token(s, ' ', 1);
1574                         int const nargs = s1.empty() ? 0 : convert<int>(s1);
1575                         string const s2 = token(s, ' ', 2);
1576                         MacroType type = MacroTypeNewcommand;
1577                         if (s2 == "def")
1578                                 type = MacroTypeDef;
1579                         MathMacroTemplate * inset = new MathMacroTemplate(from_utf8(token(s, ' ', 0)), nargs, false, type);
1580                         inset->setBuffer(bv->buffer());
1581                         insertInset(cur, inset);
1582
1583                         // enter macro inset and select the name
1584                         cur.push(*inset);
1585                         cur.top().pos() = cur.top().lastpos();
1586                         cur.resetAnchor();
1587                         cur.setSelection(true);
1588                         cur.top().pos() = 0;
1589                 }
1590                 break;
1591
1592         // passthrough hat and underscore outside mathed:
1593         case LFUN_MATH_SUBSCRIPT:
1594                 mathDispatch(cur, FuncRequest(LFUN_SELF_INSERT, "_"), false);
1595                 break;
1596         case LFUN_MATH_SUPERSCRIPT:
1597                 mathDispatch(cur, FuncRequest(LFUN_SELF_INSERT, "^"), false);
1598                 break;
1599
1600         case LFUN_MATH_INSERT:
1601         case LFUN_MATH_MATRIX:
1602         case LFUN_MATH_DELIM:
1603         case LFUN_MATH_BIGDELIM: {
1604                 cur.recordUndo();
1605                 cap::replaceSelection(cur);
1606                 cur.insert(new InsetMathHull(hullSimple));
1607                 checkAndActivateInset(cur, true);
1608                 LASSERT(cur.inMathed(), /**/);
1609                 cur.dispatch(cmd);
1610                 break;
1611         }
1612
1613         case LFUN_FONT_EMPH: {
1614                 Font font(ignore_font, ignore_language);
1615                 font.fontInfo().setEmph(FONT_TOGGLE);
1616                 toggleAndShow(cur, this, font);
1617                 break;
1618         }
1619
1620         case LFUN_FONT_ITAL: {
1621                 Font font(ignore_font, ignore_language);
1622                 font.fontInfo().setShape(ITALIC_SHAPE);
1623                 toggleAndShow(cur, this, font);
1624                 break;
1625         }
1626
1627         case LFUN_FONT_BOLD:
1628         case LFUN_FONT_BOLDSYMBOL: {
1629                 Font font(ignore_font, ignore_language);
1630                 font.fontInfo().setSeries(BOLD_SERIES);
1631                 toggleAndShow(cur, this, font);
1632                 break;
1633         }
1634
1635         case LFUN_FONT_NOUN: {
1636                 Font font(ignore_font, ignore_language);
1637                 font.fontInfo().setNoun(FONT_TOGGLE);
1638                 toggleAndShow(cur, this, font);
1639                 break;
1640         }
1641
1642         case LFUN_FONT_TYPEWRITER: {
1643                 Font font(ignore_font, ignore_language);
1644                 font.fontInfo().setFamily(TYPEWRITER_FAMILY); // no good
1645                 toggleAndShow(cur, this, font);
1646                 break;
1647         }
1648
1649         case LFUN_FONT_SANS: {
1650                 Font font(ignore_font, ignore_language);
1651                 font.fontInfo().setFamily(SANS_FAMILY);
1652                 toggleAndShow(cur, this, font);
1653                 break;
1654         }
1655
1656         case LFUN_FONT_ROMAN: {
1657                 Font font(ignore_font, ignore_language);
1658                 font.fontInfo().setFamily(ROMAN_FAMILY);
1659                 toggleAndShow(cur, this, font);
1660                 break;
1661         }
1662
1663         case LFUN_FONT_DEFAULT: {
1664                 Font font(inherit_font, ignore_language);
1665                 toggleAndShow(cur, this, font);
1666                 break;
1667         }
1668
1669         case LFUN_FONT_UNDERLINE: {
1670                 Font font(ignore_font, ignore_language);
1671                 font.fontInfo().setUnderbar(FONT_TOGGLE);
1672                 toggleAndShow(cur, this, font);
1673                 break;
1674         }
1675
1676         case LFUN_FONT_SIZE: {
1677                 Font font(ignore_font, ignore_language);
1678                 setLyXSize(to_utf8(cmd.argument()), font.fontInfo());
1679                 toggleAndShow(cur, this, font);
1680                 break;
1681         }
1682
1683         case LFUN_LANGUAGE: {
1684                 Language const * lang = languages.getLanguage(to_utf8(cmd.argument()));
1685                 if (!lang)
1686                         break;
1687                 Font font(ignore_font, lang);
1688                 toggleAndShow(cur, this, font);
1689                 break;
1690         }
1691
1692         case LFUN_TEXTSTYLE_APPLY:
1693                 toggleAndShow(cur, this, freefont, toggleall);
1694                 cur.message(_("Character set"));
1695                 break;
1696
1697         // Set the freefont using the contents of \param data dispatched from
1698         // the frontends and apply it at the current cursor location.
1699         case LFUN_TEXTSTYLE_UPDATE: {
1700                 Font font;
1701                 bool toggle;
1702                 if (font.fromString(to_utf8(cmd.argument()), toggle)) {
1703                         freefont = font;
1704                         toggleall = toggle;
1705                         toggleAndShow(cur, this, freefont, toggleall);
1706                         cur.message(_("Character set"));
1707                 } else {
1708                         lyxerr << "Argument not ok";
1709                 }
1710                 break;
1711         }
1712
1713         case LFUN_FINISHED_LEFT:
1714                 LYXERR(Debug::DEBUG, "handle LFUN_FINISHED_LEFT:\n" << cur);
1715                 // We're leaving an inset, going left. If the inset is LTR, we're
1716                 // leaving from the front, so we should not move (remain at --- but
1717                 // not in --- the inset). If the inset is RTL, move left, without
1718                 // entering the inset itself; i.e., move to after the inset.
1719                 if (cur.paragraph().getFontSettings(
1720                                 cur.bv().buffer().params(), cur.pos()).isRightToLeft())
1721                         cursorVisLeft(cur, true);
1722                 break;
1723
1724         case LFUN_FINISHED_RIGHT:
1725                 LYXERR(Debug::DEBUG, "handle LFUN_FINISHED_RIGHT:\n" << cur);
1726                 // We're leaving an inset, going right. If the inset is RTL, we're
1727                 // leaving from the front, so we should not move (remain at --- but
1728                 // not in --- the inset). If the inset is LTR, move right, without
1729                 // entering the inset itself; i.e., move to after the inset.
1730                 if (!cur.paragraph().getFontSettings(
1731                                 cur.bv().buffer().params(), cur.pos()).isRightToLeft())
1732                         cursorVisRight(cur, true);
1733                 break;
1734
1735         case LFUN_FINISHED_BACKWARD:
1736                 LYXERR(Debug::DEBUG, "handle LFUN_FINISHED_BACKWARD:\n" << cur);
1737                 break;
1738
1739         case LFUN_FINISHED_FORWARD:
1740                 LYXERR(Debug::DEBUG, "handle LFUN_FINISHED_FORWARD:\n" << cur);
1741                 ++cur.pos();
1742                 cur.setCurrentFont();
1743                 break;
1744
1745         case LFUN_LAYOUT_PARAGRAPH: {
1746                 string data;
1747                 params2string(cur.paragraph(), data);
1748                 data = "show\n" + data;
1749                 bv->showDialog("paragraph", data);
1750                 break;
1751         }
1752
1753         case LFUN_PARAGRAPH_UPDATE: {
1754                 string data;
1755                 params2string(cur.paragraph(), data);
1756
1757                 // Will the paragraph accept changes from the dialog?
1758                 bool const accept =
1759                         cur.inset().allowParagraphCustomization(cur.idx());
1760
1761                 data = "update " + convert<string>(accept) + '\n' + data;
1762                 bv->updateDialog("paragraph", data);
1763                 break;
1764         }
1765
1766         case LFUN_ACCENT_UMLAUT:
1767         case LFUN_ACCENT_CIRCUMFLEX:
1768         case LFUN_ACCENT_GRAVE:
1769         case LFUN_ACCENT_ACUTE:
1770         case LFUN_ACCENT_TILDE:
1771         case LFUN_ACCENT_CEDILLA:
1772         case LFUN_ACCENT_MACRON:
1773         case LFUN_ACCENT_DOT:
1774         case LFUN_ACCENT_UNDERDOT:
1775         case LFUN_ACCENT_UNDERBAR:
1776         case LFUN_ACCENT_CARON:
1777         case LFUN_ACCENT_BREVE:
1778         case LFUN_ACCENT_TIE:
1779         case LFUN_ACCENT_HUNGARIAN_UMLAUT:
1780         case LFUN_ACCENT_CIRCLE:
1781         case LFUN_ACCENT_OGONEK:
1782                 theLyXFunc().handleKeyFunc(cmd.action);
1783                 if (!cmd.argument().empty())
1784                         // FIXME: Are all these characters encoded in one byte in utf8?
1785                         bv->translateAndInsert(cmd.argument()[0], this, cur);
1786                 break;
1787
1788         case LFUN_FLOAT_LIST_INSERT: {
1789                 DocumentClass const & tclass = bv->buffer().params().documentClass();
1790                 if (tclass.floats().typeExist(to_utf8(cmd.argument()))) {
1791                         cur.recordUndo();
1792                         if (cur.selection())
1793                                 cutSelection(cur, true, false);
1794                         breakParagraph(cur);
1795
1796                         if (cur.lastpos() != 0) {
1797                                 cursorBackward(cur);
1798                                 breakParagraph(cur);
1799                         }
1800
1801                         docstring const laystr = cur.inset().usePlainLayout() ?
1802                                 tclass.plainLayoutName() :
1803                                 tclass.defaultLayoutName();
1804                         setLayout(cur, laystr);
1805                         ParagraphParameters p;
1806                         // FIXME If this call were replaced with one to clearParagraphParams(),
1807                         // then we could get rid of this method altogether.
1808                         setParagraphs(cur, p);
1809                         // FIXME This should be simplified when InsetFloatList takes a
1810                         // Buffer in its constructor.
1811                         InsetFloatList * ifl = new InsetFloatList(to_utf8(cmd.argument()));
1812                         ifl->setBuffer(bv->buffer());
1813                         insertInset(cur, ifl);
1814                         cur.posForward();
1815                 } else {
1816                         lyxerr << "Non-existent float type: "
1817                                << to_utf8(cmd.argument()) << endl;
1818                 }
1819                 break;
1820         }
1821
1822         case LFUN_CHANGE_ACCEPT: {
1823                 acceptOrRejectChanges(cur, ACCEPT);
1824                 break;
1825         }
1826
1827         case LFUN_CHANGE_REJECT: {
1828                 acceptOrRejectChanges(cur, REJECT);
1829                 break;
1830         }
1831
1832         case LFUN_THESAURUS_ENTRY: {
1833                 docstring arg = cmd.argument();
1834                 if (arg.empty()) {
1835                         arg = cur.selectionAsString(false);
1836                         // FIXME
1837                         if (arg.size() > 100 || arg.empty()) {
1838                                 // Get word or selection
1839                                 selectWordWhenUnderCursor(cur, WHOLE_WORD);
1840                                 arg = cur.selectionAsString(false);
1841                                 arg += " lang=" + from_ascii(cur.getFont().language()->lang());
1842                         }
1843                 }
1844                 bv->showDialog("thesaurus", to_utf8(arg));
1845                 break;
1846         }
1847
1848         case LFUN_PARAGRAPH_PARAMS_APPLY: {
1849                 // Given data, an encoding of the ParagraphParameters
1850                 // generated in the Paragraph dialog, this function sets
1851                 // the current paragraph, or currently selected paragraphs,
1852                 // appropriately.
1853                 // NOTE: This function overrides all existing settings.
1854                 setParagraphs(cur, cmd.argument());
1855                 cur.message(_("Paragraph layout set"));
1856                 break;
1857         }
1858
1859         case LFUN_PARAGRAPH_PARAMS: {
1860                 // Given data, an encoding of the ParagraphParameters as we'd
1861                 // find them in a LyX file, this function modifies the current paragraph,
1862                 // or currently selected paragraphs.
1863                 // NOTE: This function only modifies, and does not override, existing
1864                 // settings.
1865                 setParagraphs(cur, cmd.argument(), true);
1866                 cur.message(_("Paragraph layout set"));
1867                 break;
1868         }
1869
1870         case LFUN_ESCAPE:
1871                 if (cur.selection()) {
1872                         cur.setSelection(false);
1873                 } else {
1874                         cur.undispatched();
1875                         // This used to be LFUN_FINISHED_RIGHT, I think FORWARD is more
1876                         // correct, but I'm not 100% sure -- dov, 071019
1877                         cmd = FuncRequest(LFUN_FINISHED_FORWARD);
1878                 }
1879                 break;
1880
1881         case LFUN_OUTLINE_UP:
1882                 outline(OutlineUp, cur);
1883                 setCursor(cur, cur.pit(), 0);
1884                 cur.buffer()->updateLabels();
1885                 needsUpdate = true;
1886                 break;
1887
1888         case LFUN_OUTLINE_DOWN:
1889                 outline(OutlineDown, cur);
1890                 setCursor(cur, cur.pit(), 0);
1891                 cur.buffer()->updateLabels();
1892                 needsUpdate = true;
1893                 break;
1894
1895         case LFUN_OUTLINE_IN:
1896                 outline(OutlineIn, cur);
1897                 cur.buffer()->updateLabels();
1898                 needsUpdate = true;
1899                 break;
1900
1901         case LFUN_OUTLINE_OUT:
1902                 outline(OutlineOut, cur);
1903                 cur.buffer()->updateLabels();
1904                 needsUpdate = true;
1905                 break;
1906
1907         default:
1908                 LYXERR(Debug::ACTION, "Command " << cmd << " not DISPATCHED by Text");
1909                 cur.undispatched();
1910                 break;
1911         }
1912
1913         needsUpdate |= (cur.pos() != cur.lastpos()) && cur.selection();
1914
1915         // FIXME: The cursor flag is reset two lines below
1916         // so we need to check here if some of the LFUN did touch that.
1917         // for now only Text::erase() and Text::backspace() do that.
1918         // The plan is to verify all the LFUNs and then to remove this
1919         // singleParUpdate boolean altogether.
1920         if (cur.result().update() & Update::Force) {
1921                 singleParUpdate = false;
1922                 needsUpdate = true;
1923         }
1924
1925         // FIXME: the following code should go in favor of fine grained
1926         // update flag treatment.
1927         if (singleParUpdate) {
1928                 // Inserting characters does not change par height in general. So, try
1929                 // to update _only_ this paragraph. BufferView will detect if a full
1930                 // metrics update is needed anyway.
1931                 cur.updateFlags(Update::SinglePar | Update::FitCursor);
1932                 return;
1933         }
1934
1935         if (!needsUpdate
1936             && &oldTopSlice.inset() == &cur.inset()
1937             && oldTopSlice.idx() == cur.idx()
1938             && !sel // sel is a backup of cur.selection() at the biginning of the function.
1939             && !cur.selection())
1940                 // FIXME: it would be better if we could just do this
1941                 //
1942                 //if (cur.result().update() != Update::FitCursor)
1943                 //      cur.noUpdate();
1944                 //
1945                 // But some LFUNs do not set Update::FitCursor when needed, so we
1946                 // do it for all. This is not very harmfull as FitCursor will provoke
1947                 // a full redraw only if needed but still, a proper review of all LFUN
1948                 // should be done and this needsUpdate boolean can then be removed.
1949                 cur.updateFlags(Update::FitCursor);
1950         else
1951                 cur.updateFlags(Update::Force | Update::FitCursor);
1952 }
1953
1954
1955 bool Text::getStatus(Cursor & cur, FuncRequest const & cmd,
1956                         FuncStatus & flag) const
1957 {
1958         LASSERT(cur.text() == this, /**/);
1959
1960         FontInfo const & fontinfo = cur.real_current_font.fontInfo();
1961         bool enable = true;
1962         InsetCode code = NO_CODE;
1963
1964         switch (cmd.action) {
1965
1966         case LFUN_DEPTH_DECREMENT:
1967                 enable = changeDepthAllowed(cur, DEC_DEPTH);
1968                 break;
1969
1970         case LFUN_DEPTH_INCREMENT:
1971                 enable = changeDepthAllowed(cur, INC_DEPTH);
1972                 break;
1973
1974         case LFUN_APPENDIX:
1975                 flag.setOnOff(cur.paragraph().params().startOfAppendix());
1976                 break;
1977
1978         case LFUN_DIALOG_SHOW_NEW_INSET:
1979                 if (cmd.argument() == "bibitem")
1980                         code = BIBITEM_CODE;
1981                 else if (cmd.argument() == "bibtex")
1982                         code = BIBTEX_CODE;
1983                 else if (cmd.argument() == "box")
1984                         code = BOX_CODE;
1985                 else if (cmd.argument() == "branch")
1986                         code = BRANCH_CODE;
1987                 else if (cmd.argument() == "citation")
1988                         code = CITE_CODE;
1989                 else if (cmd.argument() == "ert")
1990                         code = ERT_CODE;
1991                 else if (cmd.argument() == "external")
1992                         code = EXTERNAL_CODE;
1993                 else if (cmd.argument() == "float")
1994                         code = FLOAT_CODE;
1995                 else if (cmd.argument() == "graphics")
1996                         code = GRAPHICS_CODE;
1997                 else if (cmd.argument() == "href")
1998                         code = HYPERLINK_CODE;
1999                 else if (cmd.argument() == "include")
2000                         code = INCLUDE_CODE;
2001                 else if (cmd.argument() == "index")
2002                         code = INDEX_CODE;
2003                 else if (cmd.argument() == "nomenclature")
2004                         code = NOMENCL_CODE;
2005                 else if (cmd.argument() == "label")
2006                         code = LABEL_CODE;
2007                 else if (cmd.argument() == "note")
2008                         code = NOTE_CODE;
2009                 else if (cmd.argument() == "ref")
2010                         code = REF_CODE;
2011                 else if (cmd.argument() == "space")
2012                         code = SPACE_CODE;
2013                 else if (cmd.argument() == "toc")
2014                         code = TOC_CODE;
2015                 else if (cmd.argument() == "vspace")
2016                         code = VSPACE_CODE;
2017                 else if (cmd.argument() == "wrap")
2018                         code = WRAP_CODE;
2019                 else if (cmd.argument() == "listings")
2020                         code = LISTINGS_CODE;
2021                 break;
2022
2023         case LFUN_ERT_INSERT:
2024                 code = ERT_CODE;
2025                 break;
2026         case LFUN_LISTING_INSERT:
2027                 code = LISTINGS_CODE;
2028                 // not allowed in description items
2029                 enable = !inDescriptionItem(cur);
2030                 break;
2031         case LFUN_FOOTNOTE_INSERT:
2032                 code = FOOT_CODE;
2033                 break;
2034         case LFUN_TABULAR_INSERT:
2035                 code = TABULAR_CODE;
2036                 break;
2037         case LFUN_MARGINALNOTE_INSERT:
2038                 code = MARGIN_CODE;
2039                 break;
2040         case LFUN_FLOAT_INSERT:
2041         case LFUN_FLOAT_WIDE_INSERT:
2042                 code = FLOAT_CODE;
2043                 // not allowed in description items
2044                 enable = !inDescriptionItem(cur);
2045                 break;
2046         case LFUN_WRAP_INSERT:
2047                 code = WRAP_CODE;
2048                 // not allowed in description items
2049                 enable = !inDescriptionItem(cur);
2050                 break;
2051         case LFUN_FLOAT_LIST_INSERT:
2052                 code = FLOAT_LIST_CODE;
2053                 break;
2054         case LFUN_CAPTION_INSERT:
2055                 code = CAPTION_CODE;
2056                 // not allowed in description items
2057                 enable = !inDescriptionItem(cur);
2058                 break;
2059         case LFUN_NOTE_INSERT:
2060                 code = NOTE_CODE;
2061                 // in commands (sections etc.) and description items,
2062                 // only Notes are allowed
2063                 enable = (cmd.argument().empty() || cmd.getArg(0) == "Note" ||
2064                           (!cur.paragraph().layout().isCommand()
2065                            && !inDescriptionItem(cur)));
2066                 break;
2067         case LFUN_FLEX_INSERT: {
2068                 code = FLEX_CODE;
2069                 string s = cmd.getArg(0);
2070                 InsetLayout il =
2071                         cur.buffer()->params().documentClass().insetLayout(from_utf8(s));
2072                 if (il.lyxtype() != InsetLayout::CHARSTYLE &&
2073                     il.lyxtype() != InsetLayout::CUSTOM &&
2074                     il.lyxtype() != InsetLayout::ELEMENT &&
2075                     il.lyxtype ()!= InsetLayout::STANDARD)
2076                         enable = false;
2077                 break;
2078                 }
2079         case LFUN_BOX_INSERT:
2080                 code = BOX_CODE;
2081                 break;
2082         case LFUN_BRANCH_INSERT:
2083                 code = BRANCH_CODE;
2084                 if (cur.buffer()->masterBuffer()->params().branchlist().empty())
2085                         enable = false;
2086                 break;
2087         case LFUN_LABEL_INSERT:
2088                 code = LABEL_CODE;
2089                 break;
2090         case LFUN_INFO_INSERT:
2091                 code = INFO_CODE;
2092                 break;
2093         case LFUN_OPTIONAL_INSERT:
2094                 code = OPTARG_CODE;
2095                 enable = cur.paragraph().insetList().count(OPTARG_CODE)
2096                         < cur.paragraph().layout().optionalargs;
2097                 break;
2098         case LFUN_INDEX_INSERT:
2099                 code = INDEX_CODE;
2100                 break;
2101         case LFUN_INDEX_PRINT:
2102                 code = INDEX_PRINT_CODE;
2103                 break;
2104         case LFUN_NOMENCL_INSERT:
2105                 if (cur.selIsMultiCell() || cur.selIsMultiLine()) {
2106                         enable = false;
2107                         break;
2108                 }
2109                 code = NOMENCL_CODE;
2110                 break;
2111         case LFUN_NOMENCL_PRINT:
2112                 code = NOMENCL_PRINT_CODE;
2113                 break;
2114         case LFUN_TOC_INSERT:
2115                 code = TOC_CODE;
2116                 break;
2117         case LFUN_HYPERLINK_INSERT:
2118                 if (cur.selIsMultiCell() || cur.selIsMultiLine()) {
2119                         enable = false;
2120                         break;
2121                 }
2122                 code = HYPERLINK_CODE;
2123                 break;
2124         case LFUN_QUOTE_INSERT:
2125                 // always allow this, since we will inset a raw quote
2126                 // if an inset is not allowed.
2127                 break;
2128         case LFUN_SPECIALCHAR_INSERT:
2129                 code = SPECIALCHAR_CODE;
2130                 break;
2131         case LFUN_SPACE_INSERT:
2132                 // slight hack: we know this is allowed in math mode
2133                 if (cur.inTexted())
2134                         code = SPACE_CODE;
2135                 break;
2136
2137         case LFUN_INSET_MODIFY:
2138                 // We need to disable this, because we may get called for a
2139                 // tabular cell via
2140                 // InsetTabular::getStatus() -> InsetText::getStatus()
2141                 // and we don't handle LFUN_INSET_MODIFY.
2142                 enable = false;
2143                 break;
2144
2145         case LFUN_FONT_EMPH:
2146                 flag.setOnOff(fontinfo.emph() == FONT_ON);
2147                 break;
2148
2149         case LFUN_FONT_ITAL:
2150                 flag.setOnOff(fontinfo.shape() == ITALIC_SHAPE);
2151                 break;
2152
2153         case LFUN_FONT_NOUN:
2154                 flag.setOnOff(fontinfo.noun() == FONT_ON);
2155                 break;
2156
2157         case LFUN_FONT_BOLD:
2158         case LFUN_FONT_BOLDSYMBOL:
2159                 flag.setOnOff(fontinfo.series() == BOLD_SERIES);
2160                 break;
2161
2162         case LFUN_FONT_SANS:
2163                 flag.setOnOff(fontinfo.family() == SANS_FAMILY);
2164                 break;
2165
2166         case LFUN_FONT_ROMAN:
2167                 flag.setOnOff(fontinfo.family() == ROMAN_FAMILY);
2168                 break;
2169
2170         case LFUN_FONT_TYPEWRITER:
2171                 flag.setOnOff(fontinfo.family() == TYPEWRITER_FAMILY);
2172                 break;
2173
2174         case LFUN_CUT:
2175         case LFUN_COPY:
2176                 enable = cur.selection();
2177                 break;
2178
2179         case LFUN_PASTE: {
2180                 if (cmd.argument().empty()) {
2181                         if (theClipboard().isInternal())
2182                                 enable = cap::numberOfSelections() > 0;
2183                         else
2184                                 enable = !theClipboard().empty();
2185                         break;
2186                 }
2187
2188                 // we have an argument
2189                 string const arg = to_utf8(cmd.argument());
2190                 if (isStrUnsignedInt(arg)) {
2191                         // it's a number and therefore means the internal stack
2192                         unsigned int n = convert<unsigned int>(arg);
2193                         enable = cap::numberOfSelections() > n;
2194                         break;
2195                 }
2196
2197                 // explicit graphics type?
2198                 if ((arg == "pdf" && theClipboard().hasGraphicsContents(Clipboard::PdfGraphicsType))
2199                     || (arg == "png" && theClipboard().hasGraphicsContents(Clipboard::PngGraphicsType))
2200                     || (arg == "jpeg" && theClipboard().hasGraphicsContents(Clipboard::JpegGraphicsType))
2201                     || (arg == "linkback" && theClipboard().hasGraphicsContents(Clipboard::LinkBackGraphicsType))) {
2202                         enable = true;
2203                         break;
2204                 }
2205
2206                 // unknown argument
2207                 enable = false;
2208                 break;
2209          }
2210
2211         case LFUN_CLIPBOARD_PASTE:
2212                 enable = !theClipboard().empty();
2213                 break;
2214
2215         case LFUN_PRIMARY_SELECTION_PASTE:
2216                 enable = cur.selection() || !theSelection().empty();
2217                 break;
2218
2219         case LFUN_PARAGRAPH_MOVE_UP:
2220                 enable = cur.pit() > 0 && !cur.selection();
2221                 break;
2222
2223         case LFUN_PARAGRAPH_MOVE_DOWN:
2224                 enable = cur.pit() < cur.lastpit() && !cur.selection();
2225                 break;
2226
2227         case LFUN_INSET_DISSOLVE:
2228                 if (!cmd.argument().empty()) {
2229                         InsetLayout const & il = cur.inset().getLayout(cur.buffer()->params());
2230                         InsetLayout::InsetLyXType const type =
2231                                         translateLyXType(to_utf8(cmd.argument()));
2232                         enable = cur.inset().lyxCode() == FLEX_CODE
2233                                  && il.lyxtype() == type;
2234                 } else {
2235                         enable = ((!isMainText(cur.bv().buffer())
2236                                       && cur.inset().nargs() == 1)
2237                                   || (cur.nextInset()
2238                                       && cur.nextInset()->nargs() == 1));
2239                 }
2240                 break;
2241
2242         case LFUN_CHANGE_ACCEPT:
2243         case LFUN_CHANGE_REJECT:
2244                 // TODO: context-sensitive enabling of LFUN_CHANGE_ACCEPT/REJECT
2245                 // In principle, these LFUNs should only be enabled if there
2246                 // is a change at the current position/in the current selection.
2247                 // However, without proper optimizations, this will inevitably
2248                 // result in unacceptable performance - just imagine a user who
2249                 // wants to select the complete content of a long document.
2250                 enable = true;
2251                 break;
2252
2253         case LFUN_OUTLINE_UP:
2254         case LFUN_OUTLINE_DOWN:
2255         case LFUN_OUTLINE_IN:
2256         case LFUN_OUTLINE_OUT:
2257                 // FIXME: LyX is not ready for outlining within inset.
2258                 enable = isMainText(cur.bv().buffer())
2259                         && cur.paragraph().layout().toclevel != Layout::NOT_IN_TOC;
2260                 break;
2261
2262         case LFUN_NEWLINE_INSERT:
2263                 // LaTeX restrictions (labels or empty par)
2264                 enable = (cur.pos() > cur.paragraph().beginOfBody());
2265                 break;
2266
2267         case LFUN_SET_GRAPHICS_GROUP: {
2268                 InsetGraphics * ins = graphics::getCurrentGraphicsInset(cur);
2269                 if (!ins)
2270                         enable = false;
2271                 else
2272                         flag.setOnOff(to_utf8(cmd.argument()) == ins->getParams().groupId);
2273                 break;
2274         }
2275
2276         case LFUN_NEWPAGE_INSERT:
2277                 // not allowed in description items
2278                 enable = !inDescriptionItem(cur);
2279                 break;
2280
2281         case LFUN_WORD_DELETE_FORWARD:
2282         case LFUN_WORD_DELETE_BACKWARD:
2283         case LFUN_LINE_DELETE:
2284         case LFUN_WORD_FORWARD:
2285         case LFUN_WORD_BACKWARD:
2286         case LFUN_WORD_RIGHT:
2287         case LFUN_WORD_LEFT:
2288         case LFUN_CHAR_FORWARD:
2289         case LFUN_CHAR_FORWARD_SELECT:
2290         case LFUN_CHAR_BACKWARD:
2291         case LFUN_CHAR_BACKWARD_SELECT:
2292         case LFUN_CHAR_LEFT:
2293         case LFUN_CHAR_LEFT_SELECT:
2294         case LFUN_CHAR_RIGHT:
2295         case LFUN_CHAR_RIGHT_SELECT:
2296         case LFUN_UP:
2297         case LFUN_UP_SELECT:
2298         case LFUN_DOWN:
2299         case LFUN_DOWN_SELECT:
2300         case LFUN_PARAGRAPH_UP_SELECT:
2301         case LFUN_PARAGRAPH_DOWN_SELECT:
2302         case LFUN_LINE_BEGIN_SELECT:
2303         case LFUN_LINE_END_SELECT:
2304         case LFUN_WORD_FORWARD_SELECT:
2305         case LFUN_WORD_BACKWARD_SELECT:
2306         case LFUN_WORD_RIGHT_SELECT:
2307         case LFUN_WORD_LEFT_SELECT:
2308         case LFUN_WORD_SELECT:
2309         case LFUN_PARAGRAPH_UP:
2310         case LFUN_PARAGRAPH_DOWN:
2311         case LFUN_LINE_BEGIN:
2312         case LFUN_LINE_END:
2313         case LFUN_CHAR_DELETE_FORWARD:
2314         case LFUN_CHAR_DELETE_BACKWARD:
2315         case LFUN_BREAK_PARAGRAPH:
2316         case LFUN_PARAGRAPH_SPACING:
2317         case LFUN_INSET_INSERT:
2318         case LFUN_WORD_UPCASE:
2319         case LFUN_WORD_LOWCASE:
2320         case LFUN_WORD_CAPITALIZE:
2321         case LFUN_CHARS_TRANSPOSE:
2322         case LFUN_SERVER_GET_XY:
2323         case LFUN_SERVER_SET_XY:
2324         case LFUN_SERVER_GET_LAYOUT:
2325         case LFUN_LAYOUT:
2326         case LFUN_DATE_INSERT:
2327         case LFUN_SELF_INSERT:
2328         case LFUN_LINE_INSERT:
2329         case LFUN_MATH_DISPLAY:
2330         case LFUN_MATH_MODE:
2331         case LFUN_MATH_MACRO:
2332         case LFUN_MATH_MATRIX:
2333         case LFUN_MATH_DELIM:
2334         case LFUN_MATH_BIGDELIM:
2335         case LFUN_MATH_INSERT:
2336         case LFUN_MATH_SUBSCRIPT:
2337         case LFUN_MATH_SUPERSCRIPT:
2338         case LFUN_FONT_DEFAULT:
2339         case LFUN_FONT_UNDERLINE:
2340         case LFUN_FONT_SIZE:
2341         case LFUN_LANGUAGE:
2342         case LFUN_TEXTSTYLE_APPLY:
2343         case LFUN_TEXTSTYLE_UPDATE:
2344         case LFUN_LAYOUT_PARAGRAPH:
2345         case LFUN_PARAGRAPH_UPDATE:
2346         case LFUN_ACCENT_UMLAUT:
2347         case LFUN_ACCENT_CIRCUMFLEX:
2348         case LFUN_ACCENT_GRAVE:
2349         case LFUN_ACCENT_ACUTE:
2350         case LFUN_ACCENT_TILDE:
2351         case LFUN_ACCENT_CEDILLA:
2352         case LFUN_ACCENT_MACRON:
2353         case LFUN_ACCENT_DOT:
2354         case LFUN_ACCENT_UNDERDOT:
2355         case LFUN_ACCENT_UNDERBAR:
2356         case LFUN_ACCENT_CARON:
2357         case LFUN_ACCENT_BREVE:
2358         case LFUN_ACCENT_TIE:
2359         case LFUN_ACCENT_HUNGARIAN_UMLAUT:
2360         case LFUN_ACCENT_CIRCLE:
2361         case LFUN_ACCENT_OGONEK:
2362         case LFUN_THESAURUS_ENTRY:
2363         case LFUN_PARAGRAPH_PARAMS_APPLY:
2364         case LFUN_PARAGRAPH_PARAMS:
2365         case LFUN_ESCAPE:
2366         case LFUN_BUFFER_END:
2367         case LFUN_BUFFER_BEGIN:
2368         case LFUN_BUFFER_BEGIN_SELECT:
2369         case LFUN_BUFFER_END_SELECT:
2370         case LFUN_UNICODE_INSERT:
2371                 // these are handled in our dispatch()
2372                 enable = true;
2373                 break;
2374
2375         default:
2376                 return false;
2377         }
2378
2379         if (code != NO_CODE
2380             && (cur.empty() || !cur.inset().insetAllowed(code)))
2381                 enable = false;
2382
2383         flag.setEnabled(enable);
2384         return true;
2385 }
2386
2387
2388 void Text::pasteString(Cursor & cur, docstring const & clip,
2389                 bool asParagraphs)
2390 {
2391         cur.clearSelection();
2392         if (!clip.empty()) {
2393                 cur.recordUndo();
2394                 if (asParagraphs)
2395                         insertStringAsParagraphs(cur, clip);
2396                 else
2397                         insertStringAsLines(cur, clip);
2398         }
2399 }
2400
2401
2402 // FIXME: an item inset would make things much easier.
2403 bool Text::inDescriptionItem(Cursor & cur) const
2404 {
2405         Paragraph & par = cur.paragraph();
2406         pos_type const pos = cur.pos();
2407         pos_type const body_pos = par.beginOfBody();
2408
2409         if (par.layout().latextype != LATEX_LIST_ENVIRONMENT
2410             && (par.layout().latextype != LATEX_ITEM_ENVIRONMENT
2411                 || par.layout().margintype != MARGIN_FIRST_DYNAMIC))
2412                 return false;
2413
2414         return (pos < body_pos
2415                 || (pos == body_pos
2416                     && (pos == 0 || par.getChar(pos - 1) != ' ')));
2417 }
2418
2419 } // namespace lyx