src/Text3.cpp

   1 /**
   2  * \file text3.cpp
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author Asger Alstrup
   7  * \author Lars Gullik Bjønnes
   8  * \author Alfredo Braunstein
   9  * \author Angus Leeming
  10  * \author John Levon
  11  * \author André Pönitz
  12  *
  13  * Full author contact details are available in file CREDITS.
  14  */
  15
  16 #include <config.h>
  17
  18 #include "Text.h"
  19
  20 #include "Bidi.h"
  21 #include "BranchList.h"
  22 #include "FloatList.h"
  23 #include "FuncStatus.h"
  24 #include "Buffer.h"
  25 #include "buffer_funcs.h"
  26 #include "BufferParams.h"
  27 #include "BufferView.h"
  28 #include "Cursor.h"
  29 #include "CutAndPaste.h"
  30 #include "DispatchResult.h"
  31 #include "ErrorList.h"
  32 #include "factory.h"
  33 #include "FuncRequest.h"
  34 #include "InsetList.h"
  35 #include "Intl.h"
  36 #include "Language.h"
  37 #include "Layout.h"
  38 #include "LyXAction.h"
  39 #include "LyXFunc.h"
  40 #include "Lexer.h"
  41 #include "LyXRC.h"
  42 #include "Paragraph.h"
  43 #include "paragraph_funcs.h"
  44 #include "ParagraphParameters.h"
  45 #include "TextClass.h"
  46 #include "TextMetrics.h"
  47 #include "VSpace.h"
  48
  49 #include "frontends/Clipboard.h"
  50 #include "frontends/Selection.h"
  51
  52 #include "insets/InsetCollapsable.h"
  53 #include "insets/InsetCommand.h"
  54 #include "insets/InsetFloatList.h"
  55 #include "insets/InsetNewline.h"
  56 #include "insets/InsetQuotes.h"
  57 #include "insets/InsetSpecialChar.h"
  58 #include "insets/InsetText.h"
  59 #include "insets/InsetGraphics.h"
  60 #include "insets/InsetGraphicsParams.h"
  61
  62 #include "support/convert.h"
  63 #include "support/debug.h"
  64 #include "support/gettext.h"
  65 #include "support/lstrings.h"
  66 #include "support/lyxtime.h"
  67
  68 #include "mathed/InsetMathHull.h"
  69 #include "mathed/MathMacroTemplate.h"
  70
  71 #include <boost/next_prior.hpp>
  72
  73 #include <clocale>
  74 #include <sstream>
  75
  76 using namespace std;
  77 using namespace lyx::support;
  78
  79 namespace lyx {
  80
  81 using cap::copySelection;
  82 using cap::cutSelection;
  83 using cap::pasteFromStack;
  84 using cap::pasteClipboardText;
  85 using cap::pasteClipboardGraphics;
  86 using cap::replaceSelection;
  87
  88 // globals...
  89 static Font freefont(ignore_font, ignore_language);
  90 static bool toggleall = false;
  91
  92 static void toggleAndShow(Cursor & cur, Text * text,
  93         Font const & font, bool toggleall = true)
  94 {
  95         text->toggleFree(cur, font, toggleall);
  96
  97         if (font.language() != ignore_language ||
  98             font.fontInfo().number() != FONT_IGNORE) {
  99                 TextMetrics const & tm = cur.bv().textMetrics(text);
 100                 if (cur.boundary() != tm.isRTLBoundary(cur.pit(), cur.pos(),
 101                                                        cur.real_current_font))
 102                         text->setCursor(cur, cur.pit(), cur.pos(),
 103                                         false, !cur.boundary());
 104         }
 105 }
 106
 107
 108 static void moveCursor(Cursor & cur, bool selecting)
 109 {
 110         if (selecting || cur.mark())
 111                 cur.setSelection();
 112 }
 113
 114
 115 static void finishChange(Cursor & cur, bool selecting)
 116 {
 117         cur.finishUndo();
 118         moveCursor(cur, selecting);
 119 }
 120
 121
 122 static void mathDispatch(Cursor & cur, FuncRequest const & cmd, bool display)
 123 {
 124         cur.recordUndo();
 125         docstring sel = cur.selectionAsString(false);
 126
 127         // It may happen that sel is empty but there is a selection
 128         replaceSelection(cur);
 129
 130         // Is this a valid formula?
 131         bool valid = true;
 132
 133         if (sel.empty()) {
 134 #ifdef ENABLE_ASSERTIONS
 135                 const int old_pos = cur.pos();
 136 #endif
 137                 cur.insert(new InsetMathHull(hullSimple));
 138 #ifdef ENABLE_ASSERTIONS
 139                 LASSERT(old_pos == cur.pos(), /**/);
 140 #endif
 141                 cur.nextInset()->edit(cur, true);
 142                 // don't do that also for LFUN_MATH_MODE
 143                 // unless you want end up with always changing
 144                 // to mathrm when opening an inlined inset --
 145                 // I really hate "LyXfunc overloading"...
 146                 if (display)
 147                         cur.dispatch(FuncRequest(LFUN_MATH_DISPLAY));
 148                 // Avoid an unnecessary undo step if cmd.argument
 149                 // is empty
 150                 if (!cmd.argument().empty())
 151                         cur.dispatch(FuncRequest(LFUN_MATH_INSERT,
 152                                                  cmd.argument()));
 153         } else {
 154                 // create a macro if we see "\\newcommand"
 155                 // somewhere, and an ordinary formula
 156                 // otherwise
 157                 if (sel.find(from_ascii("\\newcommand")) == string::npos
 158                                 && sel.find(from_ascii("\\newlyxcommand")) == string::npos
 159                                 && sel.find(from_ascii("\\def")) == string::npos)
 160                 {
 161                         InsetMathHull * formula = new InsetMathHull;
 162                         string const selstr = to_utf8(sel);
 163                         istringstream is(selstr);
 164                         Lexer lex;
 165                         lex.setStream(is);
 166                         if (!formula->readQuiet(lex)) {
 167                                 // No valid formula, let's try with delims
 168                                 is.str("$" + selstr + "$");
 169                                 lex.setStream(is);
 170                                 if (!formula->readQuiet(lex)) {
 171                                         // Still not valid, leave it as is
 172                                         valid = false;
 173                                         delete formula;
 174                                         cur.insert(sel);
 175                                 } else
 176                                         cur.insert(formula);
 177                         } else
 178                                 cur.insert(formula);
 179                 } else {
 180                         cur.insert(new MathMacroTemplate(sel));
 181                 }
 182         }
 183         if (valid)
 184                 cur.message(from_utf8(N_("Math editor mode")));
 185         else
 186                 cur.message(from_utf8(N_("No valid math formula")));
 187 }
 188
 189
 190 static void specialChar(Cursor & cur, InsetSpecialChar::Kind kind)
 191 {
 192         cur.recordUndo();
 193         cap::replaceSelection(cur);
 194         cur.insert(new InsetSpecialChar(kind));
 195         cur.posForward();
 196 }
 197
 198
 199 static bool doInsertInset(Cursor & cur, Text * text,
 200         FuncRequest const & cmd, bool edit, bool pastesel)
 201 {
 202         Buffer & buffer = cur.bv().buffer();
 203         BufferParams const & bparams = buffer.params();
 204         Inset * inset = createInset(buffer, cmd);
 205         if (!inset)
 206                 return false;
 207
 208         if (InsetCollapsable * ci = inset->asInsetCollapsable())
 209                 ci->setLayout(bparams);
 210
 211         cur.recordUndo();
 212         if (cmd.action == LFUN_INDEX_INSERT) {
 213                 docstring ds = subst(text->getStringToIndex(cur), '\n', ' ');
 214                 text->insertInset(cur, inset);
 215                 if (edit)
 216                         inset->edit(cur, true);
 217                 // Now put this into inset
 218                 static_cast<InsetCollapsable *>(inset)->
 219                                 text().insertStringAsParagraphs(cur, ds);
 220                 return true;
 221         }
 222
 223         bool gotsel = false;
 224         if (cur.selection()) {
 225                 cutSelection(cur, false, pastesel);
 226                 cur.clearSelection();
 227                 gotsel = true;
 228         }
 229         text->insertInset(cur, inset);
 230
 231         if (edit)
 232                 inset->edit(cur, true);
 233
 234         if (!gotsel || !pastesel)
 235                 return true;
 236
 237         pasteFromStack(cur, cur.buffer().errorList("Paste"), 0);
 238         cur.buffer().errors("Paste");
 239         cur.clearSelection(); // bug 393
 240         cur.finishUndo();
 241         InsetText * insetText = dynamic_cast<InsetText *>(inset);
 242         if (insetText && (!insetText->allowMultiPar() || cur.lastpit() == 0)) {
 243                 // reset first par to default
 244                 cur.text()->paragraphs().begin()
 245                         ->setPlainOrDefaultLayout(bparams.documentClass());
 246                 cur.pos() = 0;
 247                 cur.pit() = 0;
 248                 // Merge multiple paragraphs -- hack
 249                 while (cur.lastpit() > 0)
 250                         mergeParagraph(bparams, cur.text()->paragraphs(), 0);
 251                 cur.leaveInset(*inset);
 252         } else {
 253                 cur.leaveInset(*inset);
 254                 // reset surrounding par to default
 255                 DocumentClass const & dc = bparams.documentClass();
 256                 docstring const layoutname = inset->usePlainLayout()
 257                         ? dc.plainLayoutName()
 258                         : dc.defaultLayoutName();
 259                 text->setLayout(cur, layoutname);
 260         }
 261
 262         return true;
 263 }
 264
 265
 266 string const freefont2string()
 267 {
 268         return freefont.toString(toggleall);
 269 }
 270
 271
 272 /// the type of outline operation
 273 enum OutlineOp {
 274         OutlineUp, // Move this header with text down
 275         OutlineDown,   // Move this header with text up
 276         OutlineIn, // Make this header deeper
 277         OutlineOut // Make this header shallower
 278 };
 279
 280
 281 static void outline(OutlineOp mode, Cursor & cur)
 282 {
 283         Buffer & buf = cur.buffer();
 284         pit_type & pit = cur.pit();
 285         ParagraphList & pars = buf.text().paragraphs();
 286         ParagraphList::iterator bgn = pars.begin();
 287         // The first paragraph of the area to be copied:
 288         ParagraphList::iterator start = boost::next(bgn, pit);
 289         // The final paragraph of area to be copied:
 290         ParagraphList::iterator finish = start;
 291         ParagraphList::iterator end = pars.end();
 292
 293         DocumentClass const & tc = buf.params().documentClass();
 294
 295         int const thistoclevel = start->layout().toclevel;
 296         int toclevel;
 297
 298         // Move out (down) from this section header
 299         if (finish != end)
 300                 ++finish;
 301         // Seek the one (on same level) below
 302         for (; finish != end; ++finish) {
 303                 toclevel = finish->layout().toclevel;
 304                 if (toclevel != Layout::NOT_IN_TOC && toclevel <= thistoclevel) {
 305                         break;
 306                 }
 307         }
 308
 309         switch (mode) {
 310                 case OutlineUp: {
 311                         if (start == pars.begin())
 312                                 // Nothing to move.
 313                                 return;
 314                         ParagraphList::iterator dest = start;
 315                         // Move out (up) from this header
 316                         if (dest == bgn)
 317                                 return;
 318                         // Search previous same-level header above
 319                         do {
 320                                 --dest;
 321                                 toclevel = dest->layout().toclevel;
 322                         } while(dest != bgn
 323                                 && (toclevel == Layout::NOT_IN_TOC
 324                                     || toclevel > thistoclevel));
 325                         // Not found; do nothing
 326                         if (toclevel == Layout::NOT_IN_TOC || toclevel > thistoclevel)
 327                                 return;
 328                         pit_type const newpit = distance(bgn, dest);
 329                         pit_type const len = distance(start, finish);
 330                         pit_type const deletepit = pit + len;
 331                         buf.undo().recordUndo(cur, ATOMIC_UNDO, newpit, deletepit - 1);
 332                         pars.insert(dest, start, finish);
 333                         start = boost::next(pars.begin(), deletepit);
 334                         pit = newpit;
 335                         pars.erase(start, finish);
 336                         return;
 337                 }
 338                 case OutlineDown: {
 339                         if (finish == end)
 340                                 // Nothing to move.
 341                                 return;
 342                         // Go one down from *this* header:
 343                         ParagraphList::iterator dest = boost::next(finish, 1);
 344                         // Go further down to find header to insert in front of:
 345                         for (; dest != end; ++dest) {
 346                                 toclevel = dest->layout().toclevel;
 347                                 if (toclevel != Layout::NOT_IN_TOC
 348                                     && toclevel <= thistoclevel) {
 349                                         break;
 350                                 }
 351                         }
 352                         // One such was found:
 353                         pit_type newpit = distance(bgn, dest);
 354                         pit_type const len = distance(start, finish);
 355                         buf.undo().recordUndo(cur, ATOMIC_UNDO, pit, newpit - 1);
 356                         pars.insert(dest, start, finish);
 357                         start = boost::next(bgn, pit);
 358                         pit = newpit - len;
 359                         pars.erase(start, finish);
 360                         return;
 361                 }
 362                 case OutlineIn: {
 363                         pit_type const len = distance(start, finish);
 364                         buf.undo().recordUndo(cur, ATOMIC_UNDO, pit, pit + len - 1);
 365                         for (; start != finish; ++start) {
 366                                 toclevel = start->layout().toclevel;
 367                                 if (toclevel == Layout::NOT_IN_TOC)
 368                                         continue;
 369                                 DocumentClass::const_iterator lit = tc.begin();
 370                                 DocumentClass::const_iterator len = tc.end();
 371                                 for (; lit != len; ++lit) {
 372                                         if (lit->toclevel == toclevel + 1 &&
 373                                             start->layout().labeltype == lit->labeltype) {
 374                                                 start->setLayout(*lit);
 375                                                 break;
 376                                         }
 377                                 }
 378                         }
 379                         return;
 380                 }
 381                 case OutlineOut: {
 382                         pit_type const len = distance(start, finish);
 383                         buf.undo().recordUndo(cur, ATOMIC_UNDO, pit, pit + len - 1);
 384                         for (; start != finish; ++start) {
 385                                 toclevel = start->layout().toclevel;
 386                                 if (toclevel == Layout::NOT_IN_TOC)
 387                                         continue;
 388                                 DocumentClass::const_iterator lit = tc.begin();
 389                                 DocumentClass::const_iterator len = tc.end();
 390                                 for (; lit != len; ++lit) {
 391                                         if (lit->toclevel == toclevel - 1 &&
 392                                                 start->layout().labeltype == lit->labeltype) {
 393                                                         start->setLayout(*lit);
 394                                                         break;
 395                                         }
 396                                 }
 397                         }
 398                         return;
 399                 }
 400         }
 401 }
 402
 403
 404 void Text::number(Cursor & cur)
 405 {
 406         FontInfo font = ignore_font;
 407         font.setNumber(FONT_TOGGLE);
 408         toggleAndShow(cur, this, Font(font, ignore_language));
 409 }
 410
 411
 412 bool Text::isRTL(Buffer const & buffer, Paragraph const & par) const
 413 {
 414         return par.isRTL(buffer.params());
 415 }
 416
 417
 418 void Text::dispatch(Cursor & cur, FuncRequest & cmd)
 419 {
 420         LYXERR(Debug::ACTION, "Text::dispatch: cmd: " << cmd);
 421
 422         BufferView * bv = &cur.bv();
 423         TextMetrics & tm = bv->textMetrics(this);
 424         if (!tm.contains(cur.pit()))
 425                 lyx::dispatch(FuncRequest(LFUN_SCREEN_RECENTER));
 426
 427         // FIXME: We use the update flag to indicates wether a singlePar or a
 428         // full screen update is needed. We reset it here but shall we restore it
 429         // at the end?
 430         cur.noUpdate();
 431
 432         LASSERT(cur.text() == this, /**/);
 433         CursorSlice oldTopSlice = cur.top();
 434         bool oldBoundary = cur.boundary();
 435         bool sel = cur.selection();
 436         // Signals that, even if needsUpdate == false, an update of the
 437         // cursor paragraph is required
 438         bool singleParUpdate = lyxaction.funcHasFlag(cmd.action,
 439                 LyXAction::SingleParUpdate);
 440         // Signals that a full-screen update is required
 441         bool needsUpdate = !(lyxaction.funcHasFlag(cmd.action,
 442                 LyXAction::NoUpdate) || singleParUpdate);
 443
 444         switch (cmd.action) {
 445
 446         case LFUN_PARAGRAPH_MOVE_DOWN: {
 447                 pit_type const pit = cur.pit();
 448                 recUndo(cur, pit, pit + 1);
 449                 cur.finishUndo();
 450                 swap(pars_[pit], pars_[pit + 1]);
 451                 updateLabels(cur.buffer());
 452                 needsUpdate = true;
 453                 ++cur.pit();
 454                 break;
 455         }
 456
 457         case LFUN_PARAGRAPH_MOVE_UP: {
 458                 pit_type const pit = cur.pit();
 459                 recUndo(cur, pit - 1, pit);
 460                 cur.finishUndo();
 461                 swap(pars_[pit], pars_[pit - 1]);
 462                 updateLabels(cur.buffer());
 463                 --cur.pit();
 464                 needsUpdate = true;
 465                 break;
 466         }
 467
 468         case LFUN_APPENDIX: {
 469                 Paragraph & par = cur.paragraph();
 470                 bool start = !par.params().startOfAppendix();
 471
 472 // FIXME: The code below only makes sense at top level.
 473 // Should LFUN_APPENDIX be restricted to top-level paragraphs?
 474                 // ensure that we have only one start_of_appendix in this document
 475                 // FIXME: this don't work for multipart document!
 476                 for (pit_type tmp = 0, end = pars_.size(); tmp != end; ++tmp) {
 477                         if (pars_[tmp].params().startOfAppendix()) {
 478                                 recUndo(cur, tmp);
 479                                 pars_[tmp].params().startOfAppendix(false);
 480                                 break;
 481                         }
 482                 }
 483
 484                 cur.recordUndo();
 485                 par.params().startOfAppendix(start);
 486
 487                 // we can set the refreshing parameters now
 488                 updateLabels(cur.buffer());
 489                 break;
 490         }
 491
 492         case LFUN_WORD_DELETE_FORWARD:
 493                 if (cur.selection()) {
 494                         cutSelection(cur, true, false);
 495                 } else
 496                         deleteWordForward(cur);
 497                 finishChange(cur, false);
 498                 break;
 499
 500         case LFUN_WORD_DELETE_BACKWARD:
 501                 if (cur.selection()) {
 502                         cutSelection(cur, true, false);
 503                 } else
 504                         deleteWordBackward(cur);
 505                 finishChange(cur, false);
 506                 break;
 507
 508         case LFUN_LINE_DELETE:
 509                 if (cur.selection()) {
 510                         cutSelection(cur, true, false);
 511                 } else
 512                         tm.deleteLineForward(cur);
 513                 finishChange(cur, false);
 514                 break;
 515
 516         case LFUN_BUFFER_BEGIN:
 517         case LFUN_BUFFER_BEGIN_SELECT:
 518                 needsUpdate |= cur.selHandle(cmd.action == LFUN_BUFFER_BEGIN_SELECT);
 519                 if (cur.depth() == 1) {
 520                         needsUpdate |= cursorTop(cur);
 521                 } else {
 522                         cur.undispatched();
 523                 }
 524                 cur.updateFlags(Update::FitCursor);
 525                 break;
 526
 527         case LFUN_BUFFER_END:
 528         case LFUN_BUFFER_END_SELECT:
 529                 needsUpdate |= cur.selHandle(cmd.action == LFUN_BUFFER_END_SELECT);
 530                 if (cur.depth() == 1) {
 531                         needsUpdate |= cursorBottom(cur);
 532                 } else {
 533                         cur.undispatched();
 534                 }
 535                 cur.updateFlags(Update::FitCursor);
 536                 break;
 537
 538         case LFUN_CHAR_FORWARD:
 539         case LFUN_CHAR_FORWARD_SELECT:
 540                 //LYXERR0(" LFUN_CHAR_FORWARD[SEL]:\n" << cur);
 541                 needsUpdate |= cur.selHandle(cmd.action == LFUN_CHAR_FORWARD_SELECT);
 542                 needsUpdate |= cursorForward(cur);
 543
 544                 if (!needsUpdate && oldTopSlice == cur.top()
 545                                 && cur.boundary() == oldBoundary) {
 546                         cur.undispatched();
 547                         cmd = FuncRequest(LFUN_FINISHED_FORWARD);
 548                 }
 549                 break;
 550
 551         case LFUN_CHAR_BACKWARD:
 552         case LFUN_CHAR_BACKWARD_SELECT:
 553                 //lyxerr << "handle LFUN_CHAR_BACKWARD[_SELECT]:\n" << cur << endl;
 554                 needsUpdate |= cur.selHandle(cmd.action == LFUN_CHAR_BACKWARD_SELECT);
 555                 needsUpdate |= cursorBackward(cur);
 556
 557                 if (!needsUpdate && oldTopSlice == cur.top()
 558                         && cur.boundary() == oldBoundary) {
 559                         cur.undispatched();
 560                         cmd = FuncRequest(LFUN_FINISHED_BACKWARD);
 561                 }
 562                 break;
 563
 564         case LFUN_CHAR_LEFT:
 565         case LFUN_CHAR_LEFT_SELECT:
 566                 if (lyxrc.visual_cursor) {
 567                         needsUpdate |= cur.selHandle(cmd.action == LFUN_CHAR_LEFT_SELECT);
 568                         needsUpdate |= cursorVisLeft(cur);
 569                         if (!needsUpdate && oldTopSlice == cur.top()
 570                                         && cur.boundary() == oldBoundary) {
 571                                 cur.undispatched();
 572                                 cmd = FuncRequest(LFUN_FINISHED_LEFT);
 573                         }
 574                 } else {
 575                         if (reverseDirectionNeeded(cur)) {
 576                                 cmd.action = cmd.action == LFUN_CHAR_LEFT_SELECT ?
 577                                         LFUN_CHAR_FORWARD_SELECT : LFUN_CHAR_FORWARD;
 578                         } else {
 579                                 cmd.action = cmd.action == LFUN_CHAR_LEFT_SELECT ?
 580                                         LFUN_CHAR_BACKWARD_SELECT : LFUN_CHAR_BACKWARD;
 581                         }
 582                         dispatch(cur, cmd);
 583                         return;
 584                 }
 585                 break;
 586
 587         case LFUN_CHAR_RIGHT:
 588         case LFUN_CHAR_RIGHT_SELECT:
 589                 if (lyxrc.visual_cursor) {
 590                         needsUpdate |= cur.selHandle(cmd.action == LFUN_CHAR_RIGHT_SELECT);
 591                         needsUpdate |= cursorVisRight(cur);
 592                         if (!needsUpdate && oldTopSlice == cur.top()
 593                                         && cur.boundary() == oldBoundary) {
 594                                 cur.undispatched();
 595                                 cmd = FuncRequest(LFUN_FINISHED_RIGHT);
 596                         }
 597                 } else {
 598                         if (reverseDirectionNeeded(cur)) {
 599                                 cmd.action = cmd.action == LFUN_CHAR_RIGHT_SELECT ?
 600                                         LFUN_CHAR_BACKWARD_SELECT : LFUN_CHAR_BACKWARD;
 601                         } else {
 602                                 cmd.action = cmd.action == LFUN_CHAR_RIGHT_SELECT ?
 603                                         LFUN_CHAR_FORWARD_SELECT : LFUN_CHAR_FORWARD;
 604                         }
 605                         dispatch(cur, cmd);
 606                         return;
 607                 }
 608                 break;
 609
 610
 611         case LFUN_UP_SELECT:
 612         case LFUN_DOWN_SELECT:
 613         case LFUN_UP:
 614         case LFUN_DOWN: {
 615                 // stop/start the selection
 616                 bool select = cmd.action == LFUN_DOWN_SELECT ||
 617                         cmd.action == LFUN_UP_SELECT;
 618                 cur.selHandle(select);
 619
 620                 // move cursor up/down
 621                 bool up = cmd.action == LFUN_UP_SELECT || cmd.action == LFUN_UP;
 622                 bool const successful = cur.upDownInText(up, needsUpdate);
 623                 if (successful) {
 624                         // redraw if you leave mathed (for the decorations)
 625                         needsUpdate |= cur.beforeDispatchCursor().inMathed();
 626                 } else
 627                         cur.undispatched();
 628
 629                 break;
 630         }
 631
 632         case LFUN_PARAGRAPH_UP:
 633         case LFUN_PARAGRAPH_UP_SELECT:
 634                 needsUpdate |= cur.selHandle(cmd.action == LFUN_PARAGRAPH_UP_SELECT);
 635                 needsUpdate |= cursorUpParagraph(cur);
 636                 break;
 637
 638         case LFUN_PARAGRAPH_DOWN:
 639         case LFUN_PARAGRAPH_DOWN_SELECT:
 640                 needsUpdate |= cur.selHandle(cmd.action == LFUN_PARAGRAPH_DOWN_SELECT);
 641                 needsUpdate |= cursorDownParagraph(cur);
 642                 break;
 643
 644         case LFUN_LINE_BEGIN:
 645         case LFUN_LINE_BEGIN_SELECT:
 646                 needsUpdate |= cur.selHandle(cmd.action == LFUN_LINE_BEGIN_SELECT);
 647                 needsUpdate |= tm.cursorHome(cur);
 648                 break;
 649
 650         case LFUN_LINE_END:
 651         case LFUN_LINE_END_SELECT:
 652                 needsUpdate |= cur.selHandle(cmd.action == LFUN_LINE_END_SELECT);
 653                 needsUpdate |= tm.cursorEnd(cur);
 654                 break;
 655
 656         case LFUN_WORD_RIGHT:
 657         case LFUN_WORD_RIGHT_SELECT:
 658                 if (lyxrc.visual_cursor) {
 659                         needsUpdate |= cur.selHandle(cmd.action == LFUN_WORD_RIGHT_SELECT);
 660                         needsUpdate |= cursorVisRightOneWord(cur);
 661                         if (!needsUpdate && oldTopSlice == cur.top()
 662                                         && cur.boundary() == oldBoundary) {
 663                                 cur.undispatched();
 664                                 cmd = FuncRequest(LFUN_FINISHED_RIGHT);
 665                         }
 666                 } else {
 667                         if (reverseDirectionNeeded(cur)) {
 668                                 cmd.action = cmd.action == LFUN_WORD_RIGHT_SELECT ?
 669                                                 LFUN_WORD_BACKWARD_SELECT : LFUN_WORD_BACKWARD;
 670                         } else {
 671                                 cmd.action = cmd.action == LFUN_WORD_RIGHT_SELECT ?
 672                                                 LFUN_WORD_FORWARD_SELECT : LFUN_WORD_FORWARD;
 673                         }
 674                         dispatch(cur, cmd);
 675                         return;
 676                 }
 677                 break;
 678
 679         case LFUN_WORD_FORWARD:
 680         case LFUN_WORD_FORWARD_SELECT:
 681                 needsUpdate |= cur.selHandle(cmd.action == LFUN_WORD_FORWARD_SELECT);
 682                 needsUpdate |= cursorForwardOneWord(cur);
 683                 break;
 684
 685         case LFUN_WORD_LEFT:
 686         case LFUN_WORD_LEFT_SELECT:
 687                 if (lyxrc.visual_cursor) {
 688                         needsUpdate |= cur.selHandle(cmd.action == LFUN_WORD_LEFT_SELECT);
 689                         needsUpdate |= cursorVisLeftOneWord(cur);
 690                         if (!needsUpdate && oldTopSlice == cur.top()
 691                                         && cur.boundary() == oldBoundary) {
 692                                 cur.undispatched();
 693                                 cmd = FuncRequest(LFUN_FINISHED_LEFT);
 694                         }
 695                 } else {
 696                         if (reverseDirectionNeeded(cur)) {
 697                                 cmd.action = cmd.action == LFUN_WORD_LEFT_SELECT ?
 698                                                 LFUN_WORD_FORWARD_SELECT : LFUN_WORD_FORWARD;
 699                         } else {
 700                                 cmd.action = cmd.action == LFUN_WORD_LEFT_SELECT ?
 701                                                 LFUN_WORD_BACKWARD_SELECT : LFUN_WORD_BACKWARD;
 702                         }
 703                         dispatch(cur, cmd);
 704                         return;
 705                 }
 706                 break;
 707
 708         case LFUN_WORD_BACKWARD:
 709         case LFUN_WORD_BACKWARD_SELECT:
 710                 needsUpdate |= cur.selHandle(cmd.action == LFUN_WORD_BACKWARD_SELECT);
 711                 needsUpdate |= cursorBackwardOneWord(cur);
 712                 break;
 713
 714         case LFUN_WORD_SELECT: {
 715                 selectWord(cur, WHOLE_WORD);
 716                 finishChange(cur, true);
 717                 break;
 718         }
 719
 720         case LFUN_NEWLINE_INSERT: {
 721                 InsetNewlineParams inp;
 722                 docstring arg = cmd.argument();
 723                 // this avoids a double undo
 724                 // FIXME: should not be needed, ideally
 725                 if (!cur.selection())
 726                         cur.recordUndo();
 727                 cap::replaceSelection(cur);
 728                 if (arg == "linebreak")
 729                         inp.kind = InsetNewlineParams::LINEBREAK;
 730                 else
 731                         inp.kind = InsetNewlineParams::NEWLINE;
 732                 cur.insert(new InsetNewline(inp));
 733                 cur.posForward();
 734                 moveCursor(cur, false);
 735                 break;
 736         }
 737
 738         case LFUN_CHAR_DELETE_FORWARD:
 739                 if (!cur.selection()) {
 740                         if (cur.pos() == cur.paragraph().size())
 741                                 // Par boundary, force full-screen update
 742                                 singleParUpdate = false;
 743                         needsUpdate |= erase(cur);
 744                         cur.resetAnchor();
 745                         // It is possible to make it a lot faster still
 746                         // just comment out the line below...
 747                 } else {
 748                         cutSelection(cur, true, false);
 749                         singleParUpdate = false;
 750                 }
 751                 moveCursor(cur, false);
 752                 break;
 753
 754         case LFUN_CHAR_DELETE_BACKWARD:
 755                 if (!cur.selection()) {
 756                         if (bv->getIntl().getTransManager().backspace()) {
 757                                 // Par boundary, full-screen update
 758                                 if (cur.pos() == 0)
 759                                         singleParUpdate = false;
 760                                 needsUpdate |= backspace(cur);
 761                                 cur.resetAnchor();
 762                                 // It is possible to make it a lot faster still
 763                                 // just comment out the line below...
 764                         }
 765                 } else {
 766                         cutSelection(cur, true, false);
 767                         singleParUpdate = false;
 768                 }
 769                 break;
 770
 771         case LFUN_BREAK_PARAGRAPH:
 772                 cap::replaceSelection(cur);
 773                 breakParagraph(cur, cmd.argument() == "inverse");
 774                 cur.resetAnchor();
 775                 break;
 776
 777         // TODO
 778         // With the creation of LFUN_PARAGRAPH_PARAMS, this is now redundant,
 779         // as its duties can be performed there. Should it be removed??
 780         // FIXME For now, it can just dispatch LFUN_PARAGRAPH_PARAMS...
 781         case LFUN_PARAGRAPH_SPACING: {
 782                 Paragraph & par = cur.paragraph();
 783                 Spacing::Space cur_spacing = par.params().spacing().getSpace();
 784                 string cur_value = "1.0";
 785                 if (cur_spacing == Spacing::Other)
 786                         cur_value = par.params().spacing().getValueAsString();
 787
 788                 istringstream is(to_utf8(cmd.argument()));
 789                 string tmp;
 790                 is >> tmp;
 791                 Spacing::Space new_spacing = cur_spacing;
 792                 string new_value = cur_value;
 793                 if (tmp.empty()) {
 794                         lyxerr << "Missing argument to `paragraph-spacing'"
 795                                << endl;
 796                 } else if (tmp == "single") {
 797                         new_spacing = Spacing::Single;
 798                 } else if (tmp == "onehalf") {
 799                         new_spacing = Spacing::Onehalf;
 800                 } else if (tmp == "double") {
 801                         new_spacing = Spacing::Double;
 802                 } else if (tmp == "other") {
 803                         new_spacing = Spacing::Other;
 804                         string tmpval = "0.0";
 805                         is >> tmpval;
 806                         lyxerr << "new_value = " << tmpval << endl;
 807                         if (tmpval != "0.0")
 808                                 new_value = tmpval;
 809                 } else if (tmp == "default") {
 810                         new_spacing = Spacing::Default;
 811                 } else {
 812                         lyxerr << to_utf8(_("Unknown spacing argument: "))
 813                                << to_utf8(cmd.argument()) << endl;
 814                 }
 815                 if (cur_spacing != new_spacing || cur_value != new_value)
 816                         par.params().spacing(Spacing(new_spacing, new_value));
 817                 break;
 818         }
 819
 820         case LFUN_INSET_INSERT: {
 821                 cur.recordUndo();
 822                 Inset * inset = createInset(bv->buffer(), cmd);
 823                 if (inset) {
 824                         // FIXME (Abdel 01/02/2006):
 825                         // What follows would be a partial fix for bug 2154:
 826                         //   http://bugzilla.lyx.org/show_bug.cgi?id=2154
 827                         // This automatically put the label inset _after_ a
 828                         // numbered section. It should be possible to extend the mechanism
 829                         // to any kind of LateX environement.
 830                         // The correct way to fix that bug would be at LateX generation.
 831                         // I'll let the code here for reference as it could be used for some
 832                         // other feature like "automatic labelling".
 833                         /*
 834                         Paragraph & par = pars_[cur.pit()];
 835                         if (inset->lyxCode() == LABEL_CODE
 836                                 && par.layout().labeltype == LABEL_COUNTER) {
 837                                 // Go to the end of the paragraph
 838                                 // Warning: Because of Change-Tracking, the last
 839                                 // position is 'size()' and not 'size()-1':
 840                                 cur.pos() = par.size();
 841                                 // Insert a new paragraph
 842                                 FuncRequest fr(LFUN_BREAK_PARAGRAPH);
 843                                 dispatch(cur, fr);
 844                         }
 845                         */
 846                         if (cur.selection())
 847                                 cutSelection(cur, true, false);
 848                         cur.insert(inset);
 849                         cur.posForward();
 850                 }
 851                 break;
 852         }
 853
 854         case LFUN_INSET_DISSOLVE:
 855                 needsUpdate |= dissolveInset(cur);
 856                 break;
 857
 858         case LFUN_INSET_SETTINGS: {
 859                 Inset & inset = cur.inset();
 860                 if (cmd.getArg(0) == insetName(inset.lyxCode())) {
 861                         // This inset dialog has been explicitely requested.
 862                         inset.showInsetDialog(bv);
 863                         break;
 864                 }
 865                 // else, if there is an inset at the cursor, access this
 866                 Inset * next_inset = cur.nextInset();
 867                 if (next_inset) {
 868                         next_inset->showInsetDialog(bv);
 869                         break;
 870                 }
 871                 // if not then access the underlying inset.
 872                 inset.showInsetDialog(bv);
 873                 break;
 874         }
 875
 876         case LFUN_SET_GRAPHICS_GROUP: {
 877                 InsetGraphics * ins = graphics::getCurrentGraphicsInset(cur);
 878                 if (!ins)
 879                         break;
 880
 881                 cur.recordUndo();
 882
 883                 string id = to_utf8(cmd.argument());
 884                 string grp = graphics::getGroupParams(bv->buffer(), id);
 885                 InsetGraphicsParams tmp, inspar = ins->getParams();
 886
 887                 if (id.empty())
 888                         inspar.groupId = to_utf8(cmd.argument());
 889                 else {
 890                         InsetGraphics::string2params(grp, bv->buffer(), tmp);
 891                         tmp.filename = inspar.filename;
 892                         inspar = tmp;
 893                 }
 894
 895                 ins->setParams(inspar);
 896         }
 897
 898         case LFUN_SPACE_INSERT:
 899                 if (cur.paragraph().layout().free_spacing)
 900                         insertChar(cur, ' ');
 901                 else {
 902                         doInsertInset(cur, this, cmd, false, false);
 903                         cur.posForward();
 904                 }
 905                 moveCursor(cur, false);
 906                 break;
 907
 908         case LFUN_SPECIALCHAR_INSERT: {
 909                 string const name = to_utf8(cmd.argument());
 910                 if (name == "hyphenation")
 911                         specialChar(cur, InsetSpecialChar::HYPHENATION);
 912                 else if (name == "ligature-break")
 913                         specialChar(cur, InsetSpecialChar::LIGATURE_BREAK);
 914                 else if (name == "slash")
 915                         specialChar(cur, InsetSpecialChar::SLASH);
 916                 else if (name == "nobreakdash")
 917                         specialChar(cur, InsetSpecialChar::NOBREAKDASH);
 918                 else if (name == "dots")
 919                         specialChar(cur, InsetSpecialChar::LDOTS);
 920                 else if (name == "end-of-sentence")
 921                         specialChar(cur, InsetSpecialChar::END_OF_SENTENCE);
 922                 else if (name == "menu-separator")
 923                         specialChar(cur, InsetSpecialChar::MENU_SEPARATOR);
 924                 else if (name.empty())
 925                         lyxerr << "LyX function 'specialchar-insert' needs an argument." << endl;
 926                 else
 927                         lyxerr << "Wrong argument for LyX function 'specialchar-insert'." << endl;
 928                 break;
 929         }
 930
 931         case LFUN_WORD_UPCASE:
 932                 changeCase(cur, text_uppercase);
 933                 break;
 934
 935         case LFUN_WORD_LOWCASE:
 936                 changeCase(cur, text_lowercase);
 937                 break;
 938
 939         case LFUN_WORD_CAPITALIZE:
 940                 changeCase(cur, text_capitalization);
 941                 break;
 942
 943         case LFUN_CHARS_TRANSPOSE:
 944                 charsTranspose(cur);
 945                 break;
 946
 947         case LFUN_PASTE: {
 948                 cur.message(_("Paste"));
 949                 LASSERT(cur.selBegin().idx() == cur.selEnd().idx(), /**/);
 950                 cap::replaceSelection(cur);
 951
 952                 // without argument?
 953                 string const arg = to_utf8(cmd.argument());
 954                 if (arg.empty()) {
 955                         if (theClipboard().isInternal())
 956                                 pasteFromStack(cur, bv->buffer().errorList("Paste"), 0);
 957                         else if (theClipboard().hasGraphicsContents())
 958                                 pasteClipboardGraphics(cur, bv->buffer().errorList("Paste"));
 959                         else
 960                                 pasteClipboardText(cur, bv->buffer().errorList("Paste"));
 961                 } else if (isStrUnsignedInt(arg)) {
 962                         // we have a numerical argument
 963                         pasteFromStack(cur, bv->buffer().errorList("Paste"),
 964                                        convert<unsigned int>(arg));
 965                 } else {
 966                         Clipboard::GraphicsType type = Clipboard::AnyGraphicsType;
 967                         if (arg == "pdf")
 968                                 type = Clipboard::PdfGraphicsType;
 969                         else if (arg == "png")
 970                                 type = Clipboard::PngGraphicsType;
 971                         else if (arg == "jpeg")
 972                                 type = Clipboard::JpegGraphicsType;
 973                         else if (arg == "linkback")
 974                                 type = Clipboard::LinkBackGraphicsType;
 975                         else
 976                                 LASSERT(false, /**/);
 977
 978                         pasteClipboardGraphics(cur, bv->buffer().errorList("Paste"), type);
 979                 }
 980
 981                 bv->buffer().errors("Paste");
 982                 cur.clearSelection(); // bug 393
 983                 cur.finishUndo();
 984                 break;
 985         }
 986
 987         case LFUN_CUT:
 988                 cutSelection(cur, true, true);
 989                 cur.message(_("Cut"));
 990                 break;
 991
 992         case LFUN_COPY:
 993                 copySelection(cur);
 994                 cur.message(_("Copy"));
 995                 break;
 996
 997         case LFUN_SERVER_GET_XY:
 998                 cur.message(from_utf8(
 999                         convert<string>(tm.cursorX(cur.top(), cur.boundary()))
1000                         + ' ' + convert<string>(tm.cursorY(cur.top(), cur.boundary()))));
1001                 break;
1002
1003         case LFUN_SERVER_SET_XY: {
1004                 int x = 0;
1005                 int y = 0;
1006                 istringstream is(to_utf8(cmd.argument()));
1007                 is >> x >> y;
1008                 if (!is)
1009                         lyxerr << "SETXY: Could not parse coordinates in '"
1010                                << to_utf8(cmd.argument()) << endl;
1011                 else
1012                         tm.setCursorFromCoordinates(cur, x, y);
1013                 break;
1014         }
1015
1016         case LFUN_SERVER_GET_LAYOUT:
1017                 cur.message(cur.paragraph().layout().name());
1018                 break;
1019
1020         case LFUN_LAYOUT: {
1021                 docstring layout = cmd.argument();
1022                 LYXERR(Debug::INFO, "LFUN_LAYOUT: (arg) " << to_utf8(layout));
1023
1024                 Paragraph const & para = cur.paragraph();
1025                 docstring const old_layout = para.layout().name();
1026                 DocumentClass const & tclass = bv->buffer().params().documentClass();
1027
1028                 if (layout.empty())
1029                         layout = tclass.defaultLayoutName();
1030
1031                 if (para.forcePlainLayout())
1032                         // in this case only the empty layout is allowed
1033                         layout = tclass.plainLayoutName();
1034                 else if (para.usePlainLayout()) {
1035                         // in this case, default layout maps to empty layout
1036                         if (layout == tclass.defaultLayoutName())
1037                                 layout = tclass.plainLayoutName();
1038                 } else {
1039                         // otherwise, the empty layout maps to the default
1040                         if (layout == tclass.plainLayoutName())
1041                                 layout = tclass.defaultLayoutName();
1042                 }
1043
1044                 bool hasLayout = tclass.hasLayout(layout);
1045
1046                 // If the entry is obsolete, use the new one instead.
1047                 if (hasLayout) {
1048                         docstring const & obs = tclass[layout].obsoleted_by();
1049                         if (!obs.empty())
1050                                 layout = obs;
1051                 }
1052
1053                 if (!hasLayout) {
1054                         cur.errorMessage(from_utf8(N_("Layout ")) + cmd.argument() +
1055                                 from_utf8(N_(" not known")));
1056                         break;
1057                 }
1058
1059                 bool change_layout = (old_layout != layout);
1060
1061                 if (!change_layout && cur.selection() &&
1062                         cur.selBegin().pit() != cur.selEnd().pit())
1063                 {
1064                         pit_type spit = cur.selBegin().pit();
1065                         pit_type epit = cur.selEnd().pit() + 1;
1066                         while (spit != epit) {
1067                                 if (pars_[spit].layout().name() != old_layout) {
1068                                         change_layout = true;
1069                                         break;
1070                                 }
1071                                 ++spit;
1072                         }
1073                 }
1074
1075                 if (change_layout)
1076                         setLayout(cur, layout);
1077
1078                 break;
1079         }
1080
1081         case LFUN_CLIPBOARD_PASTE:
1082                 cur.clearSelection();
1083                 pasteClipboardText(cur, bv->buffer().errorList("Paste"),
1084                                cmd.argument() == "paragraph");
1085                 bv->buffer().errors("Paste");
1086                 break;
1087
1088         case LFUN_PRIMARY_SELECTION_PASTE:
1089                 pasteString(cur, theSelection().get(),
1090                             cmd.argument() == "paragraph");
1091                 break;
1092
1093         case LFUN_UNICODE_INSERT: {
1094                 if (cmd.argument().empty())
1095                         break;
1096                 docstring hexstring = cmd.argument();
1097                 if (isHex(hexstring)) {
1098                         char_type c = hexToInt(hexstring);
1099                         if (c >= 32 && c < 0x10ffff) {
1100                                 lyxerr << "Inserting c: " << c << endl;
1101                                 docstring s = docstring(1, c);
1102                                 lyx::dispatch(FuncRequest(LFUN_SELF_INSERT, s));
1103                         }
1104                 }
1105                 break;
1106         }
1107
1108         case LFUN_QUOTE_INSERT: {
1109                 Paragraph & par = cur.paragraph();
1110                 pos_type pos = cur.pos();
1111                 BufferParams const & bufparams = bv->buffer().params();
1112                 Layout const & style = par.layout();
1113                 if (!style.pass_thru
1114                     && par.getFontSettings(bufparams, pos).language()->lang() != "hebrew") {
1115                         // this avoids a double undo
1116                         // FIXME: should not be needed, ideally
1117                         if (!cur.selection())
1118                                 cur.recordUndo();
1119                         cap::replaceSelection(cur);
1120                         pos = cur.pos();
1121                         char_type c;
1122                         if (pos == 0)
1123                                 c = ' ';
1124                         else if (cur.prevInset() && cur.prevInset()->isSpace())
1125                                 c = ' ';
1126                         else
1127                                 c = par.getChar(pos - 1);
1128                         string arg = to_utf8(cmd.argument());
1129                         cur.insert(new InsetQuotes(bv->buffer(), c, (arg == "single")
1130                                 ? InsetQuotes::SingleQuotes : InsetQuotes::DoubleQuotes));
1131                         cur.posForward();
1132                 }
1133                 else
1134                         lyx::dispatch(FuncRequest(LFUN_SELF_INSERT, "\""));
1135                 break;
1136         }
1137
1138         case LFUN_DATE_INSERT: {
1139                 string const format = cmd.argument().empty()
1140                         ? lyxrc.date_insert_format : to_utf8(cmd.argument());
1141                 string const time = formatted_time(current_time(), format);
1142                 lyx::dispatch(FuncRequest(LFUN_SELF_INSERT, time));
1143                 break;
1144         }
1145
1146         case LFUN_MOUSE_TRIPLE:
1147                 if (cmd.button() == mouse_button::button1) {
1148                         tm.cursorHome(cur);
1149                         cur.resetAnchor();
1150                         tm.cursorEnd(cur);
1151                         cur.setSelection();
1152                         bv->cursor() = cur;
1153                 }
1154                 break;
1155
1156         case LFUN_MOUSE_DOUBLE:
1157                 if (cmd.button() == mouse_button::button1) {
1158                         selectWord(cur, WHOLE_WORD_STRICT);
1159                         bv->cursor() = cur;
1160                 }
1161                 break;
1162
1163         // Single-click on work area
1164         case LFUN_MOUSE_PRESS:
1165                 // We are not marking a selection with the keyboard in any case.
1166                 cur.bv().cursor().setMark(false);
1167                 switch (cmd.button()) {
1168                 case mouse_button::button1:
1169                         // Set the cursor
1170                         if (!bv->mouseSetCursor(cur, cmd.argument() == "region-select"))
1171                                 cur.updateFlags(Update::SinglePar | Update::FitCursor);
1172                         break;
1173
1174                 case mouse_button::button2:
1175                         // Middle mouse pasting.
1176                         bv->mouseSetCursor(cur);
1177                         if (!cap::selection()) {
1178                                 // There is no local selection in the current buffer, so try to
1179                                 // paste primary selection instead.
1180                                 lyx::dispatch(FuncRequest(LFUN_PRIMARY_SELECTION_PASTE,
1181                                         "paragraph"));
1182                                 // Nothing else to do.
1183                                 cur.noUpdate();
1184                                 return;
1185                         }
1186                         // Copy the selection buffer to the clipboard stack, because we want it
1187                         // to appear in the "Edit->Paste recent" menu.
1188                         cap::copySelectionToStack();
1189                         cap::pasteSelection(bv->cursor(), bv->buffer().errorList("Paste"));
1190                         cur.updateFlags(Update::Force | Update::FitCursor);
1191                         bv->buffer().errors("Paste");
1192                         bv->buffer().markDirty();
1193                         bv->cursor().finishUndo();
1194                         break;
1195
1196                 case mouse_button::button3: {
1197                         Cursor const & bvcur = cur.bv().cursor();
1198                         // Don't do anything if we right-click a
1199                         // selection, a context menu will popup.
1200                         if (bvcur.selection() && cur >= bvcur.selectionBegin()
1201                             && cur < bvcur.selectionEnd()) {
1202                                 cur.noUpdate();
1203                                 return;
1204                         }
1205                         if (!bv->mouseSetCursor(cur, false))
1206                                 cur.updateFlags(Update::SinglePar | Update::FitCursor);
1207                         break;
1208                 }
1209
1210                 default:
1211                         break;
1212                 } // switch (cmd.button())
1213                 break;
1214
1215         case LFUN_MOUSE_MOTION: {
1216                 // Mouse motion with right or middle mouse do nothing for now.
1217                 if (cmd.button() != mouse_button::button1) {
1218                         cur.noUpdate();
1219                         return;
1220                 }
1221                 // ignore motions deeper nested than the real anchor
1222                 Cursor & bvcur = cur.bv().cursor();
1223                 if (!bvcur.anchor_.hasPart(cur)) {
1224                         cur.undispatched();
1225                         break;
1226                 }
1227                 CursorSlice old = bvcur.top();
1228
1229                 int const wh = bv->workHeight();
1230                 int const y = max(0, min(wh - 1, cmd.y));
1231
1232                 tm.setCursorFromCoordinates(cur, cmd.x, y);
1233                 cur.setTargetX(cmd.x);
1234                 if (cmd.y >= wh)
1235                         lyx::dispatch(FuncRequest(LFUN_DOWN_SELECT));
1236                 else if (cmd.y < 0)
1237                         lyx::dispatch(FuncRequest(LFUN_UP_SELECT));
1238                 // This is to allow jumping over large insets
1239                 if (cur.top() == old) {
1240                         if (cmd.y >= wh)
1241                                 lyx::dispatch(FuncRequest(LFUN_DOWN_SELECT));
1242                         else if (cmd.y < 0)
1243                                 lyx::dispatch(FuncRequest(LFUN_UP_SELECT));
1244                 }
1245                 // We continue with our existing selection or start a new one, so don't
1246                 // reset the anchor.
1247                 bvcur.setCursor(cur);
1248                 bvcur.setSelection(true);
1249                 if (cur.top() == old) {
1250                         // We didn't move one iota, so no need to update the screen.
1251                         cur.updateFlags(Update::SinglePar | Update::FitCursor);
1252                         //cur.noUpdate();
1253                         return;
1254                 }
1255                 break;
1256         }
1257
1258         case LFUN_MOUSE_RELEASE:
1259                 switch (cmd.button()) {
1260                 case mouse_button::button1:
1261                         // Cursor was set at LFUN_MOUSE_PRESS or LFUN_MOUSE_MOTION time.
1262                         // If there is a new selection, update persistent selection;
1263                         // otherwise, single click does not clear persistent selection
1264                         // buffer.
1265                         if (cur.selection()) {
1266                                 // Finish selection. If double click,
1267                                 // cur is moved to the end of word by
1268                                 // selectWord but bvcur is current
1269                                 // mouse position.
1270                                 cur.bv().cursor().setSelection();
1271                                 // We might have removed an empty but drawn selection
1272                                 // (probably a margin)
1273                                 cur.updateFlags(Update::SinglePar | Update::FitCursor);
1274                         } else
1275                                 cur.noUpdate();
1276                         // FIXME: We could try to handle drag and drop of selection here.
1277                         return;
1278
1279                 case mouse_button::button2:
1280                         // Middle mouse pasting is handled at mouse press time,
1281                         // see LFUN_MOUSE_PRESS.
1282                         cur.noUpdate();
1283                         return;
1284
1285                 case mouse_button::button3:
1286                         // Cursor was set at LFUN_MOUSE_PRESS time.
1287                         // FIXME: If there is a selection we could try to handle a special
1288                         // drag & drop context menu.
1289                         cur.noUpdate();
1290                         return;
1291
1292                 case mouse_button::none:
1293                 case mouse_button::button4:
1294                 case mouse_button::button5:
1295                         break;
1296                 } // switch (cmd.button())
1297
1298                 break;
1299
1300         case LFUN_SELF_INSERT: {
1301                 if (cmd.argument().empty())
1302                         break;
1303
1304                 // Automatically delete the currently selected
1305                 // text and replace it with what is being
1306                 // typed in now. Depends on lyxrc settings
1307                 // "auto_region_delete", which defaults to
1308                 // true (on).
1309
1310                 if (lyxrc.auto_region_delete && cur.selection())
1311                         cutSelection(cur, false, false);
1312
1313                 cur.clearSelection();
1314
1315                 docstring::const_iterator cit = cmd.argument().begin();
1316                 docstring::const_iterator const end = cmd.argument().end();
1317                 for (; cit != end; ++cit)
1318                         bv->translateAndInsert(*cit, this, cur);
1319
1320                 cur.resetAnchor();
1321                 moveCursor(cur, false);
1322                 break;
1323         }
1324
1325         case LFUN_HYPERLINK_INSERT: {
1326                 InsetCommandParams p(HYPERLINK_CODE);
1327                 docstring content;
1328                 if (cur.selection()) {
1329                         content = cur.selectionAsString(false);
1330                         cutSelection(cur, true, false);
1331                 }
1332                 p["target"] = (cmd.argument().empty()) ?
1333                         content : cmd.argument();
1334                 string const data = InsetCommand::params2string("href", p);
1335                 if (p["target"].empty()) {
1336                         bv->showDialog("href", data);
1337                 } else {
1338                         FuncRequest fr(LFUN_INSET_INSERT, data);
1339                         dispatch(cur, fr);
1340                 }
1341                 break;
1342         }
1343
1344         case LFUN_LABEL_INSERT: {
1345                 InsetCommandParams p(LABEL_CODE);
1346                 // Try to generate a valid label
1347                 p["name"] = (cmd.argument().empty()) ?
1348                         cur.getPossibleLabel() :
1349                         cmd.argument();
1350                 string const data = InsetCommand::params2string("label", p);
1351
1352                 if (cmd.argument().empty()) {
1353                         bv->showDialog("label", data);
1354                 } else {
1355                         FuncRequest fr(LFUN_INSET_INSERT, data);
1356                         dispatch(cur, fr);
1357                 }
1358                 break;
1359         }
1360
1361         case LFUN_INFO_INSERT: {
1362                 Inset * inset;
1363                 if (cmd.argument().empty() && cur.selection()) {
1364                         // if command argument is empty use current selection as parameter.
1365                         docstring ds = cur.selectionAsString(false);
1366                         cutSelection(cur, true, false);
1367                         FuncRequest cmd0(cmd, ds);
1368                         inset = createInset(cur.bv().buffer(), cmd0);
1369                 } else {
1370                         inset = createInset(cur.bv().buffer(), cmd);
1371                 }
1372                 if (!inset)
1373                         break;
1374                 insertInset(cur, inset);
1375                 cur.posForward();
1376                 break;
1377         }
1378         case LFUN_CAPTION_INSERT:
1379         case LFUN_FOOTNOTE_INSERT:
1380         case LFUN_NOTE_INSERT:
1381         case LFUN_FLEX_INSERT:
1382         case LFUN_BOX_INSERT:
1383         case LFUN_BRANCH_INSERT:
1384         case LFUN_ERT_INSERT:
1385         case LFUN_LISTING_INSERT:
1386         case LFUN_MARGINALNOTE_INSERT:
1387         case LFUN_OPTIONAL_INSERT:
1388         case LFUN_INDEX_INSERT:
1389                 // Open the inset, and move the current selection
1390                 // inside it.
1391                 doInsertInset(cur, this, cmd, true, true);
1392                 cur.posForward();
1393                 // Some insets are numbered, others are shown in the outline pane so
1394                 // let's update the labels and the toc backend.
1395                 updateLabels(bv->buffer());
1396                 break;
1397
1398         case LFUN_TABULAR_INSERT:
1399                 // if there were no arguments, just open the dialog
1400                 if (doInsertInset(cur, this, cmd, false, true))
1401                         cur.posForward();
1402                 else
1403                         bv->showDialog("tabularcreate");
1404
1405                 break;
1406
1407         case LFUN_FLOAT_INSERT:
1408         case LFUN_FLOAT_WIDE_INSERT:
1409         case LFUN_WRAP_INSERT: {
1410                 // will some text be moved into the inset?
1411                 bool content = cur.selection();
1412
1413                 doInsertInset(cur, this, cmd, true, true);
1414                 cur.posForward();
1415
1416                 // If some text is moved into the inset, doInsertInset
1417                 // puts the cursor outside the inset. To insert the
1418                 // caption we put it back into the inset.
1419                 if (content)
1420                         cur.backwardPos();
1421
1422                 ParagraphList & pars = cur.text()->paragraphs();
1423
1424                 DocumentClass const & tclass = bv->buffer().params().documentClass();
1425
1426                 // add a separate paragraph for the caption inset
1427                 pars.push_back(Paragraph());
1428                 pars.back().setInsetOwner(&pars[0].inInset());
1429                 pars.back().setPlainOrDefaultLayout(tclass);
1430                 int cap_pit = pars.size() - 1;
1431
1432                 // if an empty inset was created, we create an additional empty
1433                 // paragraph at the bottom so that the user can choose where to put
1434                 // the graphics (or table).
1435                 if (!content) {
1436                         pars.push_back(Paragraph());
1437                         pars.back().setInsetOwner(&pars[0].inInset());
1438                         pars.back().setPlainOrDefaultLayout(tclass);
1439                 }
1440
1441                 // reposition the cursor to the caption
1442                 cur.pit() = cap_pit;
1443                 cur.pos() = 0;
1444                 // FIXME: This Text/Cursor dispatch handling is a mess!
1445                 // We cannot use Cursor::dispatch here it needs access to up to
1446                 // date metrics.
1447                 FuncRequest cmd_caption(LFUN_CAPTION_INSERT);
1448                 doInsertInset(cur, cur.text(), cmd_caption, true, false);
1449                 updateLabels(bv->buffer());
1450                 cur.updateFlags(Update::Force);
1451                 // FIXME: When leaving the Float (or Wrap) inset we should
1452                 // delete any empty paragraph left above or below the
1453                 // caption.
1454                 break;
1455         }
1456
1457         case LFUN_NOMENCL_INSERT: {
1458                 InsetCommandParams p(NOMENCL_CODE);
1459                 if (cmd.argument().empty())
1460                         p["symbol"] = bv->cursor().innerText()->getStringToIndex(bv->cursor());
1461                 else
1462                         p["symbol"] = cmd.argument();
1463                 string const data = InsetCommand::params2string("nomenclature", p);
1464                 bv->showDialog("nomenclature", data);
1465                 break;
1466         }
1467
1468         case LFUN_INDEX_PRINT:
1469         case LFUN_NOMENCL_PRINT:
1470         case LFUN_TOC_INSERT:
1471         case LFUN_LINE_INSERT:
1472         case LFUN_NEWPAGE_INSERT:
1473                 // do nothing fancy
1474                 doInsertInset(cur, this, cmd, false, false);
1475                 cur.posForward();
1476                 break;
1477
1478         case LFUN_DEPTH_DECREMENT:
1479                 changeDepth(cur, DEC_DEPTH);
1480                 break;
1481
1482         case LFUN_DEPTH_INCREMENT:
1483                 changeDepth(cur, INC_DEPTH);
1484                 break;
1485
1486         case LFUN_MATH_DISPLAY:
1487                 mathDispatch(cur, cmd, true);
1488                 break;
1489
1490         case LFUN_MATH_MODE:
1491                 if (cmd.argument() == "on")
1492                         // don't pass "on" as argument
1493                         mathDispatch(cur, FuncRequest(LFUN_MATH_MODE), false);
1494                 else
1495                         mathDispatch(cur, cmd, false);
1496                 break;
1497
1498         case LFUN_MATH_MACRO:
1499                 if (cmd.argument().empty())
1500                         cur.errorMessage(from_utf8(N_("Missing argument")));
1501                 else {
1502                         string s = to_utf8(cmd.argument());
1503                         string const s1 = token(s, ' ', 1);
1504                         int const nargs = s1.empty() ? 0 : convert<int>(s1);
1505                         string const s2 = token(s, ' ', 2);
1506                         MacroType type = MacroTypeNewcommand;
1507                         if (s2 == "def")
1508                                 type = MacroTypeDef;
1509                         MathMacroTemplate * inset = new MathMacroTemplate(from_utf8(token(s, ' ', 0)), nargs, false, type);
1510                         inset->setBuffer(bv->buffer());
1511                         insertInset(cur, inset);
1512
1513                         // enter macro inset and select the name
1514                         cur.push(*inset);
1515                         cur.top().pos() = cur.top().lastpos();
1516                         cur.resetAnchor();
1517                         cur.setSelection(true);
1518                         cur.top().pos() = 0;
1519                 }
1520                 break;
1521
1522         // passthrough hat and underscore outside mathed:
1523         case LFUN_MATH_SUBSCRIPT:
1524                 mathDispatch(cur, FuncRequest(LFUN_SELF_INSERT, "_"), false);
1525                 break;
1526         case LFUN_MATH_SUPERSCRIPT:
1527                 mathDispatch(cur, FuncRequest(LFUN_SELF_INSERT, "^"), false);
1528                 break;
1529
1530         case LFUN_MATH_INSERT:
1531         case LFUN_MATH_MATRIX:
1532         case LFUN_MATH_DELIM:
1533         case LFUN_MATH_BIGDELIM: {
1534                 cur.recordUndo();
1535                 cap::replaceSelection(cur);
1536                 cur.insert(new InsetMathHull(hullSimple));
1537                 checkAndActivateInset(cur, true);
1538                 LASSERT(cur.inMathed(), /**/);
1539                 cur.dispatch(cmd);
1540                 break;
1541         }
1542
1543         case LFUN_FONT_EMPH: {
1544                 Font font(ignore_font, ignore_language);
1545                 font.fontInfo().setEmph(FONT_TOGGLE);
1546                 toggleAndShow(cur, this, font);
1547                 break;
1548         }
1549
1550         case LFUN_FONT_BOLD:
1551         case LFUN_FONT_BOLDSYMBOL: {
1552                 Font font(ignore_font, ignore_language);
1553                 font.fontInfo().setSeries(BOLD_SERIES);
1554                 toggleAndShow(cur, this, font);
1555                 break;
1556         }
1557
1558         case LFUN_FONT_NOUN: {
1559                 Font font(ignore_font, ignore_language);
1560                 font.fontInfo().setNoun(FONT_TOGGLE);
1561                 toggleAndShow(cur, this, font);
1562                 break;
1563         }
1564
1565         case LFUN_FONT_TYPEWRITER: {
1566                 Font font(ignore_font, ignore_language);
1567                 font.fontInfo().setFamily(TYPEWRITER_FAMILY); // no good
1568                 toggleAndShow(cur, this, font);
1569                 break;
1570         }
1571
1572         case LFUN_FONT_SANS: {
1573                 Font font(ignore_font, ignore_language);
1574                 font.fontInfo().setFamily(SANS_FAMILY);
1575                 toggleAndShow(cur, this, font);
1576                 break;
1577         }
1578
1579         case LFUN_FONT_ROMAN: {
1580                 Font font(ignore_font, ignore_language);
1581                 font.fontInfo().setFamily(ROMAN_FAMILY);
1582                 toggleAndShow(cur, this, font);
1583                 break;
1584         }
1585
1586         case LFUN_FONT_DEFAULT: {
1587                 Font font(inherit_font, ignore_language);
1588                 toggleAndShow(cur, this, font);
1589                 break;
1590         }
1591
1592         case LFUN_FONT_UNDERLINE: {
1593                 Font font(ignore_font, ignore_language);
1594                 font.fontInfo().setUnderbar(FONT_TOGGLE);
1595                 toggleAndShow(cur, this, font);
1596                 break;
1597         }
1598
1599         case LFUN_FONT_SIZE: {
1600                 Font font(ignore_font, ignore_language);
1601                 setLyXSize(to_utf8(cmd.argument()), font.fontInfo());
1602                 toggleAndShow(cur, this, font);
1603                 break;
1604         }
1605
1606         case LFUN_LANGUAGE: {
1607                 Language const * lang = languages.getLanguage(to_utf8(cmd.argument()));
1608                 if (!lang)
1609                         break;
1610                 Font font(ignore_font, lang);
1611                 toggleAndShow(cur, this, font);
1612                 break;
1613         }
1614
1615         case LFUN_TEXTSTYLE_APPLY:
1616                 toggleAndShow(cur, this, freefont, toggleall);
1617                 cur.message(_("Character set"));
1618                 break;
1619
1620         // Set the freefont using the contents of \param data dispatched from
1621         // the frontends and apply it at the current cursor location.
1622         case LFUN_TEXTSTYLE_UPDATE: {
1623                 Font font;
1624                 bool toggle;
1625                 if (font.fromString(to_utf8(cmd.argument()), toggle)) {
1626                         freefont = font;
1627                         toggleall = toggle;
1628                         toggleAndShow(cur, this, freefont, toggleall);
1629                         cur.message(_("Character set"));
1630                 } else {
1631                         lyxerr << "Argument not ok";
1632                 }
1633                 break;
1634         }
1635
1636         case LFUN_FINISHED_LEFT:
1637                 LYXERR(Debug::DEBUG, "handle LFUN_FINISHED_LEFT:\n" << cur);
1638                 // We're leaving an inset, going left. If the inset is LTR, we're
1639                 // leaving from the front, so we should not move (remain at --- but
1640                 // not in --- the inset). If the inset is RTL, move left, without
1641                 // entering the inset itself; i.e., move to after the inset.
1642                 if (cur.paragraph().getFontSettings(
1643                                 cur.bv().buffer().params(), cur.pos()).isRightToLeft())
1644                         cursorVisLeft(cur, true);
1645                 break;
1646
1647         case LFUN_FINISHED_RIGHT:
1648                 LYXERR(Debug::DEBUG, "handle LFUN_FINISHED_RIGHT:\n" << cur);
1649                 // We're leaving an inset, going right. If the inset is RTL, we're
1650                 // leaving from the front, so we should not move (remain at --- but
1651                 // not in --- the inset). If the inset is LTR, move right, without
1652                 // entering the inset itself; i.e., move to after the inset.
1653                 if (!cur.paragraph().getFontSettings(
1654                                 cur.bv().buffer().params(), cur.pos()).isRightToLeft())
1655                         cursorVisRight(cur, true);
1656                 break;
1657
1658         case LFUN_FINISHED_BACKWARD:
1659                 LYXERR(Debug::DEBUG, "handle LFUN_FINISHED_BACKWARD:\n" << cur);
1660                 break;
1661
1662         case LFUN_FINISHED_FORWARD:
1663                 LYXERR(Debug::DEBUG, "handle LFUN_FINISHED_FORWARD:\n" << cur);
1664                 ++cur.pos();
1665                 cur.setCurrentFont();
1666                 break;
1667
1668         case LFUN_LAYOUT_PARAGRAPH: {
1669                 string data;
1670                 params2string(cur.paragraph(), data);
1671                 data = "show\n" + data;
1672                 bv->showDialog("paragraph", data);
1673                 break;
1674         }
1675
1676         case LFUN_PARAGRAPH_UPDATE: {
1677                 string data;
1678                 params2string(cur.paragraph(), data);
1679
1680                 // Will the paragraph accept changes from the dialog?
1681                 bool const accept =
1682                         cur.inset().allowParagraphCustomization(cur.idx());
1683
1684                 data = "update " + convert<string>(accept) + '\n' + data;
1685                 bv->updateDialog("paragraph", data);
1686                 break;
1687         }
1688
1689         case LFUN_ACCENT_UMLAUT:
1690         case LFUN_ACCENT_CIRCUMFLEX:
1691         case LFUN_ACCENT_GRAVE:
1692         case LFUN_ACCENT_ACUTE:
1693         case LFUN_ACCENT_TILDE:
1694         case LFUN_ACCENT_CEDILLA:
1695         case LFUN_ACCENT_MACRON:
1696         case LFUN_ACCENT_DOT:
1697         case LFUN_ACCENT_UNDERDOT:
1698         case LFUN_ACCENT_UNDERBAR:
1699         case LFUN_ACCENT_CARON:
1700         case LFUN_ACCENT_BREVE:
1701         case LFUN_ACCENT_TIE:
1702         case LFUN_ACCENT_HUNGARIAN_UMLAUT:
1703         case LFUN_ACCENT_CIRCLE:
1704         case LFUN_ACCENT_OGONEK:
1705                 theLyXFunc().handleKeyFunc(cmd.action);
1706                 if (!cmd.argument().empty())
1707                         // FIXME: Are all these characters encoded in one byte in utf8?
1708                         bv->translateAndInsert(cmd.argument()[0], this, cur);
1709                 break;
1710
1711         case LFUN_FLOAT_LIST_INSERT: {
1712                 DocumentClass const & tclass = bv->buffer().params().documentClass();
1713                 if (tclass.floats().typeExist(to_utf8(cmd.argument()))) {
1714                         cur.recordUndo();
1715                         if (cur.selection())
1716                                 cutSelection(cur, true, false);
1717                         breakParagraph(cur);
1718
1719                         if (cur.lastpos() != 0) {
1720                                 cursorBackward(cur);
1721                                 breakParagraph(cur);
1722                         }
1723
1724                         docstring const laystr = cur.inset().usePlainLayout() ?
1725                                 tclass.plainLayoutName() :
1726                                 tclass.defaultLayoutName();
1727                         setLayout(cur, laystr);
1728                         ParagraphParameters p;
1729                         // FIXME If this call were replaced with one to clearParagraphParams(),
1730                         // then we could get rid of this method altogether.
1731                         setParagraphs(cur, p);
1732                         // FIXME This should be simplified when InsetFloatList takes a
1733                         // Buffer in its constructor.
1734                         InsetFloatList * ifl = new InsetFloatList(to_utf8(cmd.argument()));
1735                         ifl->setBuffer(bv->buffer());
1736                         insertInset(cur, ifl);
1737                         cur.posForward();
1738                 } else {
1739                         lyxerr << "Non-existent float type: "
1740                                << to_utf8(cmd.argument()) << endl;
1741                 }
1742                 break;
1743         }
1744
1745         case LFUN_CHANGE_ACCEPT: {
1746                 acceptOrRejectChanges(cur, ACCEPT);
1747                 break;
1748         }
1749
1750         case LFUN_CHANGE_REJECT: {
1751                 acceptOrRejectChanges(cur, REJECT);
1752                 break;
1753         }
1754
1755         case LFUN_THESAURUS_ENTRY: {
1756                 docstring arg = cmd.argument();
1757                 if (arg.empty()) {
1758                         arg = cur.selectionAsString(false);
1759                         // FIXME
1760                         if (arg.size() > 100 || arg.empty()) {
1761                                 // Get word or selection
1762                                 selectWordWhenUnderCursor(cur, WHOLE_WORD);
1763                                 arg = cur.selectionAsString(false);
1764                         }
1765                 }
1766                 bv->showDialog("thesaurus", to_utf8(arg));
1767                 break;
1768         }
1769
1770         case LFUN_PARAGRAPH_PARAMS_APPLY: {
1771                 // Given data, an encoding of the ParagraphParameters
1772                 // generated in the Paragraph dialog, this function sets
1773                 // the current paragraph, or currently selected paragraphs,
1774                 // appropriately.
1775                 // NOTE: This function overrides all existing settings.
1776                 setParagraphs(cur, cmd.argument());
1777                 cur.message(_("Paragraph layout set"));
1778                 break;
1779         }
1780
1781         case LFUN_PARAGRAPH_PARAMS: {
1782                 // Given data, an encoding of the ParagraphParameters as we'd
1783                 // find them in a LyX file, this function modifies the current paragraph,
1784                 // or currently selected paragraphs.
1785                 // NOTE: This function only modifies, and does not override, existing
1786                 // settings.
1787                 setParagraphs(cur, cmd.argument(), true);
1788                 cur.message(_("Paragraph layout set"));
1789                 break;
1790         }
1791
1792         case LFUN_ESCAPE:
1793                 if (cur.selection()) {
1794                         cur.setSelection(false);
1795                 } else {
1796                         cur.undispatched();
1797                         // This used to be LFUN_FINISHED_RIGHT, I think FORWARD is more
1798                         // correct, but I'm not 100% sure -- dov, 071019
1799                         cmd = FuncRequest(LFUN_FINISHED_FORWARD);
1800                 }
1801                 break;
1802
1803         case LFUN_OUTLINE_UP:
1804                 outline(OutlineUp, cur);
1805                 setCursor(cur, cur.pit(), 0);
1806                 updateLabels(cur.buffer());
1807                 needsUpdate = true;
1808                 break;
1809
1810         case LFUN_OUTLINE_DOWN:
1811                 outline(OutlineDown, cur);
1812                 setCursor(cur, cur.pit(), 0);
1813                 updateLabels(cur.buffer());
1814                 needsUpdate = true;
1815                 break;
1816
1817         case LFUN_OUTLINE_IN:
1818                 outline(OutlineIn, cur);
1819                 updateLabels(cur.buffer());
1820                 needsUpdate = true;
1821                 break;
1822
1823         case LFUN_OUTLINE_OUT:
1824                 outline(OutlineOut, cur);
1825                 updateLabels(cur.buffer());
1826                 needsUpdate = true;
1827                 break;
1828
1829         default:
1830                 LYXERR(Debug::ACTION, "Command " << cmd << " not DISPATCHED by Text");
1831                 cur.undispatched();
1832                 break;
1833         }
1834
1835         needsUpdate |= (cur.pos() != cur.lastpos()) && cur.selection();
1836
1837         // FIXME: The cursor flag is reset two lines below
1838         // so we need to check here if some of the LFUN did touch that.
1839         // for now only Text::erase() and Text::backspace() do that.
1840         // The plan is to verify all the LFUNs and then to remove this
1841         // singleParUpdate boolean altogether.
1842         if (cur.result().update() & Update::Force) {
1843                 singleParUpdate = false;
1844                 needsUpdate = true;
1845         }
1846
1847         // FIXME: the following code should go in favor of fine grained
1848         // update flag treatment.
1849         if (singleParUpdate) {
1850                 // Inserting characters does not change par height in general. So, try
1851                 // to update _only_ this paragraph. BufferView will detect if a full
1852                 // metrics update is needed anyway.
1853                 cur.updateFlags(Update::SinglePar | Update::FitCursor);
1854                 return;
1855         }
1856
1857         if (!needsUpdate
1858             && &oldTopSlice.inset() == &cur.inset()
1859             && oldTopSlice.idx() == cur.idx()
1860             && !sel // sel is a backup of cur.selection() at the biginning of the function.
1861             && !cur.selection())
1862                 // FIXME: it would be better if we could just do this
1863                 //
1864                 //if (cur.result().update() != Update::FitCursor)
1865                 //      cur.noUpdate();
1866                 //
1867                 // But some LFUNs do not set Update::FitCursor when needed, so we
1868                 // do it for all. This is not very harmfull as FitCursor will provoke
1869                 // a full redraw only if needed but still, a proper review of all LFUN
1870                 // should be done and this needsUpdate boolean can then be removed.
1871                 cur.updateFlags(Update::FitCursor);
1872         else
1873                 cur.updateFlags(Update::Force | Update::FitCursor);
1874 }
1875
1876
1877 bool Text::getStatus(Cursor & cur, FuncRequest const & cmd,
1878                         FuncStatus & flag) const
1879 {
1880         LASSERT(cur.text() == this, /**/);
1881
1882         FontInfo const & fontinfo = cur.real_current_font.fontInfo();
1883         bool enable = true;
1884         InsetCode code = NO_CODE;
1885
1886         switch (cmd.action) {
1887
1888         case LFUN_DEPTH_DECREMENT:
1889                 enable = changeDepthAllowed(cur, DEC_DEPTH);
1890                 break;
1891
1892         case LFUN_DEPTH_INCREMENT:
1893                 enable = changeDepthAllowed(cur, INC_DEPTH);
1894                 break;
1895
1896         case LFUN_APPENDIX:
1897                 flag.setOnOff(cur.paragraph().params().startOfAppendix());
1898                 break;
1899
1900         case LFUN_DIALOG_SHOW_NEW_INSET:
1901                 if (cmd.argument() == "bibitem")
1902                         code = BIBITEM_CODE;
1903                 else if (cmd.argument() == "bibtex")
1904                         code = BIBTEX_CODE;
1905                 else if (cmd.argument() == "box")
1906                         code = BOX_CODE;
1907                 else if (cmd.argument() == "branch")
1908                         code = BRANCH_CODE;
1909                 else if (cmd.argument() == "citation")
1910                         code = CITE_CODE;
1911                 else if (cmd.argument() == "ert")
1912                         code = ERT_CODE;
1913                 else if (cmd.argument() == "external")
1914                         code = EXTERNAL_CODE;
1915                 else if (cmd.argument() == "float")
1916                         code = FLOAT_CODE;
1917                 else if (cmd.argument() == "graphics")
1918                         code = GRAPHICS_CODE;
1919                 else if (cmd.argument() == "href")
1920                         code = HYPERLINK_CODE;
1921                 else if (cmd.argument() == "include")
1922                         code = INCLUDE_CODE;
1923                 else if (cmd.argument() == "index")
1924                         code = INDEX_CODE;
1925                 else if (cmd.argument() == "nomenclature")
1926                         code = NOMENCL_CODE;
1927                 else if (cmd.argument() == "label")
1928                         code = LABEL_CODE;
1929                 else if (cmd.argument() == "note")
1930                         code = NOTE_CODE;
1931                 else if (cmd.argument() == "ref")
1932                         code = REF_CODE;
1933                 else if (cmd.argument() == "space")
1934                         code = SPACE_CODE;
1935                 else if (cmd.argument() == "toc")
1936                         code = TOC_CODE;
1937                 else if (cmd.argument() == "vspace")
1938                         code = VSPACE_CODE;
1939                 else if (cmd.argument() == "wrap")
1940                         code = WRAP_CODE;
1941                 else if (cmd.argument() == "listings")
1942                         code = LISTINGS_CODE;
1943                 break;
1944
1945         case LFUN_ERT_INSERT:
1946                 code = ERT_CODE;
1947                 break;
1948         case LFUN_LISTING_INSERT:
1949                 code = LISTINGS_CODE;
1950                 // not allowed in description items
1951                 enable = !inDescriptionItem(cur);
1952                 break;
1953         case LFUN_FOOTNOTE_INSERT:
1954                 code = FOOT_CODE;
1955                 break;
1956         case LFUN_TABULAR_INSERT:
1957                 code = TABULAR_CODE;
1958                 break;
1959         case LFUN_MARGINALNOTE_INSERT:
1960                 code = MARGIN_CODE;
1961                 break;
1962         case LFUN_FLOAT_INSERT:
1963         case LFUN_FLOAT_WIDE_INSERT:
1964                 code = FLOAT_CODE;
1965                 // not allowed in description items
1966                 enable = !inDescriptionItem(cur);
1967                 break;
1968         case LFUN_WRAP_INSERT:
1969                 code = WRAP_CODE;
1970                 // not allowed in description items
1971                 enable = !inDescriptionItem(cur);
1972                 break;
1973         case LFUN_FLOAT_LIST_INSERT:
1974                 code = FLOAT_LIST_CODE;
1975                 break;
1976         case LFUN_CAPTION_INSERT:
1977                 code = CAPTION_CODE;
1978                 // not allowed in description items
1979                 enable = !inDescriptionItem(cur);
1980                 break;
1981         case LFUN_NOTE_INSERT:
1982                 code = NOTE_CODE;
1983                 // in commands (sections etc.) and description items,
1984                 // only Notes are allowed
1985                 enable = (cmd.argument().empty() || cmd.getArg(0) == "Note" ||
1986                           (!cur.paragraph().layout().isCommand()
1987                            && !inDescriptionItem(cur)));
1988                 break;
1989         case LFUN_FLEX_INSERT: {
1990                 code = FLEX_CODE;
1991                 string s = cmd.getArg(0);
1992                 InsetLayout il =
1993                         cur.buffer().params().documentClass().insetLayout(from_utf8(s));
1994                 if (il.lyxtype() != InsetLayout::CHARSTYLE &&
1995                     il.lyxtype() != InsetLayout::CUSTOM &&
1996                     il.lyxtype() != InsetLayout::ELEMENT &&
1997                     il.lyxtype ()!= InsetLayout::STANDARD)
1998                         enable = false;
1999                 break;
2000                 }
2001         case LFUN_BOX_INSERT:
2002                 code = BOX_CODE;
2003                 break;
2004         case LFUN_BRANCH_INSERT:
2005                 code = BRANCH_CODE;
2006                 if (cur.buffer().masterBuffer()->params().branchlist().empty())
2007                         enable = false;
2008                 break;
2009         case LFUN_LABEL_INSERT:
2010                 code = LABEL_CODE;
2011                 break;
2012         case LFUN_INFO_INSERT:
2013                 code = INFO_CODE;
2014                 break;
2015         case LFUN_OPTIONAL_INSERT:
2016                 code = OPTARG_CODE;
2017                 enable = cur.paragraph().insetList().count(OPTARG_CODE)
2018                         < cur.paragraph().layout().optionalargs;
2019                 break;
2020         case LFUN_INDEX_INSERT:
2021                 code = INDEX_CODE;
2022                 break;
2023         case LFUN_INDEX_PRINT:
2024                 code = INDEX_PRINT_CODE;
2025                 break;
2026         case LFUN_NOMENCL_INSERT:
2027                 if (cur.selIsMultiCell() || cur.selIsMultiLine()) {
2028                         enable = false;
2029                         break;
2030                 }
2031                 code = NOMENCL_CODE;
2032                 break;
2033         case LFUN_NOMENCL_PRINT:
2034                 code = NOMENCL_PRINT_CODE;
2035                 break;
2036         case LFUN_TOC_INSERT:
2037                 code = TOC_CODE;
2038                 break;
2039         case LFUN_HYPERLINK_INSERT:
2040                 if (cur.selIsMultiCell() || cur.selIsMultiLine()) {
2041                         enable = false;
2042                         break;
2043                 }
2044                 code = HYPERLINK_CODE;
2045                 break;
2046         case LFUN_QUOTE_INSERT:
2047                 // always allow this, since we will inset a raw quote
2048                 // if an inset is not allowed.
2049                 break;
2050         case LFUN_SPECIALCHAR_INSERT:
2051                 code = SPECIALCHAR_CODE;
2052                 break;
2053         case LFUN_SPACE_INSERT:
2054                 // slight hack: we know this is allowed in math mode
2055                 if (cur.inTexted())
2056                         code = SPACE_CODE;
2057                 break;
2058
2059         case LFUN_INSET_MODIFY:
2060                 // We need to disable this, because we may get called for a
2061                 // tabular cell via
2062                 // InsetTabular::getStatus() -> InsetText::getStatus()
2063                 // and we don't handle LFUN_INSET_MODIFY.
2064                 enable = false;
2065                 break;
2066
2067         case LFUN_FONT_EMPH:
2068                 flag.setOnOff(fontinfo.emph() == FONT_ON);
2069                 break;
2070
2071         case LFUN_FONT_NOUN:
2072                 flag.setOnOff(fontinfo.noun() == FONT_ON);
2073                 break;
2074
2075         case LFUN_FONT_BOLD:
2076         case LFUN_FONT_BOLDSYMBOL:
2077                 flag.setOnOff(fontinfo.series() == BOLD_SERIES);
2078                 break;
2079
2080         case LFUN_FONT_SANS:
2081                 flag.setOnOff(fontinfo.family() == SANS_FAMILY);
2082                 break;
2083
2084         case LFUN_FONT_ROMAN:
2085                 flag.setOnOff(fontinfo.family() == ROMAN_FAMILY);
2086                 break;
2087
2088         case LFUN_FONT_TYPEWRITER:
2089                 flag.setOnOff(fontinfo.family() == TYPEWRITER_FAMILY);
2090                 break;
2091
2092         case LFUN_CUT:
2093         case LFUN_COPY:
2094                 enable = cur.selection();
2095                 break;
2096
2097         case LFUN_PASTE: {
2098                 if (cmd.argument().empty()) {
2099                         if (theClipboard().isInternal())
2100                                 enable = cap::numberOfSelections() > 0;
2101                         else
2102                                 enable = !theClipboard().empty();
2103                         break;
2104                 }
2105
2106                 // we have an argument
2107                 string const arg = to_utf8(cmd.argument());
2108                 if (isStrUnsignedInt(arg)) {
2109                         // it's a number and therefore means the internal stack
2110                         unsigned int n = convert<unsigned int>(arg);
2111                         enable = cap::numberOfSelections() > n;
2112                         break;
2113                 }
2114
2115                 // explicit graphics type?
2116                 if ((arg == "pdf" && theClipboard().hasGraphicsContents(Clipboard::PdfGraphicsType))
2117                     || (arg == "png" && theClipboard().hasGraphicsContents(Clipboard::PngGraphicsType))
2118                     || (arg == "jpeg" && theClipboard().hasGraphicsContents(Clipboard::JpegGraphicsType))
2119                     || (arg == "linkback" && theClipboard().hasGraphicsContents(Clipboard::LinkBackGraphicsType))) {
2120                         enable = true;
2121                         break;
2122                 }
2123
2124                 // unknown argument
2125                 enable = false;
2126                 break;
2127          }
2128
2129         case LFUN_CLIPBOARD_PASTE:
2130                 enable = !theClipboard().empty();
2131                 break;
2132
2133         case LFUN_PRIMARY_SELECTION_PASTE:
2134                 enable = cur.selection() || !theSelection().empty();
2135                 break;
2136
2137         case LFUN_PARAGRAPH_MOVE_UP:
2138                 enable = cur.pit() > 0 && !cur.selection();
2139                 break;
2140
2141         case LFUN_PARAGRAPH_MOVE_DOWN:
2142                 enable = cur.pit() < cur.lastpit() && !cur.selection();
2143                 break;
2144
2145         case LFUN_INSET_DISSOLVE:
2146                 if (!cmd.argument().empty()) {
2147                         InsetLayout const & il = cur.inset().getLayout(cur.buffer().params());
2148                         InsetLayout::InsetLyXType const type =
2149                                         translateLyXType(to_utf8(cmd.argument()));
2150                         enable = cur.inset().lyxCode() == FLEX_CODE
2151                                  && il.lyxtype() == type;
2152                 } else {
2153                         enable = !isMainText(cur.bv().buffer())
2154                                  && cur.inset().nargs() == 1;
2155                 }
2156                 break;
2157
2158         case LFUN_CHANGE_ACCEPT:
2159         case LFUN_CHANGE_REJECT:
2160                 // TODO: context-sensitive enabling of LFUN_CHANGE_ACCEPT/REJECT
2161                 // In principle, these LFUNs should only be enabled if there
2162                 // is a change at the current position/in the current selection.
2163                 // However, without proper optimizations, this will inevitably
2164                 // result in unacceptable performance - just imagine a user who
2165                 // wants to select the complete content of a long document.
2166                 enable = true;
2167                 break;
2168
2169         case LFUN_OUTLINE_UP:
2170         case LFUN_OUTLINE_DOWN:
2171         case LFUN_OUTLINE_IN:
2172         case LFUN_OUTLINE_OUT:
2173                 // FIXME: LyX is not ready for outlining within inset.
2174                 enable = isMainText(cur.bv().buffer())
2175                         && cur.paragraph().layout().toclevel != Layout::NOT_IN_TOC;
2176                 break;
2177
2178         case LFUN_NEWLINE_INSERT:
2179                 // LaTeX restrictions (labels or empty par)
2180                 enable = (cur.pos() > cur.paragraph().beginOfBody());
2181                 break;
2182
2183         case LFUN_SET_GRAPHICS_GROUP: {
2184                 InsetGraphics * ins = graphics::getCurrentGraphicsInset(cur);
2185                 if (!ins)
2186                         enable = false;
2187                 else
2188                         flag.setOnOff(to_utf8(cmd.argument()) == ins->getParams().groupId);
2189                 break;
2190         }
2191
2192         case LFUN_NEWPAGE_INSERT:
2193                 // not allowed in description items
2194                 enable = !inDescriptionItem(cur);
2195                 break;
2196
2197         case LFUN_WORD_DELETE_FORWARD:
2198         case LFUN_WORD_DELETE_BACKWARD:
2199         case LFUN_LINE_DELETE:
2200         case LFUN_WORD_FORWARD:
2201         case LFUN_WORD_BACKWARD:
2202         case LFUN_WORD_RIGHT:
2203         case LFUN_WORD_LEFT:
2204         case LFUN_CHAR_FORWARD:
2205         case LFUN_CHAR_FORWARD_SELECT:
2206         case LFUN_CHAR_BACKWARD:
2207         case LFUN_CHAR_BACKWARD_SELECT:
2208         case LFUN_CHAR_LEFT:
2209         case LFUN_CHAR_LEFT_SELECT:
2210         case LFUN_CHAR_RIGHT:
2211         case LFUN_CHAR_RIGHT_SELECT:
2212         case LFUN_UP:
2213         case LFUN_UP_SELECT:
2214         case LFUN_DOWN:
2215         case LFUN_DOWN_SELECT:
2216         case LFUN_PARAGRAPH_UP_SELECT:
2217         case LFUN_PARAGRAPH_DOWN_SELECT:
2218         case LFUN_LINE_BEGIN_SELECT:
2219         case LFUN_LINE_END_SELECT:
2220         case LFUN_WORD_FORWARD_SELECT:
2221         case LFUN_WORD_BACKWARD_SELECT:
2222         case LFUN_WORD_RIGHT_SELECT:
2223         case LFUN_WORD_LEFT_SELECT:
2224         case LFUN_WORD_SELECT:
2225         case LFUN_PARAGRAPH_UP:
2226         case LFUN_PARAGRAPH_DOWN:
2227         case LFUN_LINE_BEGIN:
2228         case LFUN_LINE_END:
2229         case LFUN_CHAR_DELETE_FORWARD:
2230         case LFUN_CHAR_DELETE_BACKWARD:
2231         case LFUN_BREAK_PARAGRAPH:
2232         case LFUN_PARAGRAPH_SPACING:
2233         case LFUN_INSET_INSERT:
2234         case LFUN_WORD_UPCASE:
2235         case LFUN_WORD_LOWCASE:
2236         case LFUN_WORD_CAPITALIZE:
2237         case LFUN_CHARS_TRANSPOSE:
2238         case LFUN_SERVER_GET_XY:
2239         case LFUN_SERVER_SET_XY:
2240         case LFUN_SERVER_GET_LAYOUT:
2241         case LFUN_LAYOUT:
2242         case LFUN_DATE_INSERT:
2243         case LFUN_SELF_INSERT:
2244         case LFUN_LINE_INSERT:
2245         case LFUN_MATH_DISPLAY:
2246         case LFUN_MATH_MODE:
2247         case LFUN_MATH_MACRO:
2248         case LFUN_MATH_MATRIX:
2249         case LFUN_MATH_DELIM:
2250         case LFUN_MATH_BIGDELIM:
2251         case LFUN_MATH_INSERT:
2252         case LFUN_MATH_SUBSCRIPT:
2253         case LFUN_MATH_SUPERSCRIPT:
2254         case LFUN_FONT_DEFAULT:
2255         case LFUN_FONT_UNDERLINE:
2256         case LFUN_FONT_SIZE:
2257         case LFUN_LANGUAGE:
2258         case LFUN_TEXTSTYLE_APPLY:
2259         case LFUN_TEXTSTYLE_UPDATE:
2260         case LFUN_LAYOUT_PARAGRAPH:
2261         case LFUN_PARAGRAPH_UPDATE:
2262         case LFUN_ACCENT_UMLAUT:
2263         case LFUN_ACCENT_CIRCUMFLEX:
2264         case LFUN_ACCENT_GRAVE:
2265         case LFUN_ACCENT_ACUTE:
2266         case LFUN_ACCENT_TILDE:
2267         case LFUN_ACCENT_CEDILLA:
2268         case LFUN_ACCENT_MACRON:
2269         case LFUN_ACCENT_DOT:
2270         case LFUN_ACCENT_UNDERDOT:
2271         case LFUN_ACCENT_UNDERBAR:
2272         case LFUN_ACCENT_CARON:
2273         case LFUN_ACCENT_BREVE:
2274         case LFUN_ACCENT_TIE:
2275         case LFUN_ACCENT_HUNGARIAN_UMLAUT:
2276         case LFUN_ACCENT_CIRCLE:
2277         case LFUN_ACCENT_OGONEK:
2278         case LFUN_THESAURUS_ENTRY:
2279         case LFUN_PARAGRAPH_PARAMS_APPLY:
2280         case LFUN_PARAGRAPH_PARAMS:
2281         case LFUN_ESCAPE:
2282         case LFUN_BUFFER_END:
2283         case LFUN_BUFFER_BEGIN:
2284         case LFUN_BUFFER_BEGIN_SELECT:
2285         case LFUN_BUFFER_END_SELECT:
2286         case LFUN_UNICODE_INSERT:
2287                 // these are handled in our dispatch()
2288                 enable = true;
2289                 break;
2290
2291         default:
2292                 return false;
2293         }
2294
2295         if (code != NO_CODE
2296             && (cur.empty() || !cur.inset().insetAllowed(code)))
2297                 enable = false;
2298
2299         flag.setEnabled(enable);
2300         return true;
2301 }
2302
2303
2304 void Text::pasteString(Cursor & cur, docstring const & clip,
2305                 bool asParagraphs)
2306 {
2307         cur.clearSelection();
2308         if (!clip.empty()) {
2309                 cur.recordUndo();
2310                 if (asParagraphs)
2311                         insertStringAsParagraphs(cur, clip);
2312                 else
2313                         insertStringAsLines(cur, clip);
2314         }
2315 }
2316
2317
2318 // FIXME: an item inset would make things much easier.
2319 bool Text::inDescriptionItem(Cursor & cur) const
2320 {
2321         Paragraph & par = cur.paragraph();
2322         pos_type const pos = cur.pos();
2323         pos_type const body_pos = par.beginOfBody();
2324
2325         if (par.layout().latextype != LATEX_LIST_ENVIRONMENT
2326             && (par.layout().latextype != LATEX_ITEM_ENVIRONMENT
2327                 || par.layout().margintype != MARGIN_FIRST_DYNAMIC))
2328                 return false;
2329
2330         return (pos < body_pos
2331                 || (pos == body_pos
2332                     && (pos == 0 || par.getChar(pos - 1) != ' ')));
2333 }
2334
2335 } // namespace lyx