src/Text3.cpp

   1 /**
   2  * \file text3.cpp
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author Asger Alstrup
   7  * \author Lars Gullik Bjønnes
   8  * \author Alfredo Braunstein
   9  * \author Angus Leeming
  10  * \author John Levon
  11  * \author André Pönitz
  12  *
  13  * Full author contact details are available in file CREDITS.
  14  */
  15
  16 #include <config.h>
  17
  18 #include "Text.h"
  19
  20 #include "Bidi.h"
  21 #include "BranchList.h"
  22 #include "FloatList.h"
  23 #include "FuncStatus.h"
  24 #include "Buffer.h"
  25 #include "buffer_funcs.h"
  26 #include "BufferParams.h"
  27 #include "BufferView.h"
  28 #include "Cursor.h"
  29 #include "CutAndPaste.h"
  30 #include "DispatchResult.h"
  31 #include "ErrorList.h"
  32 #include "factory.h"
  33 #include "FuncRequest.h"
  34 #include "InsetList.h"
  35 #include "Intl.h"
  36 #include "Language.h"
  37 #include "Layout.h"
  38 #include "LyXAction.h"
  39 #include "LyXFunc.h"
  40 #include "Lexer.h"
  41 #include "LyXRC.h"
  42 #include "Paragraph.h"
  43 #include "paragraph_funcs.h"
  44 #include "ParagraphParameters.h"
  45 #include "TextClass.h"
  46 #include "TextMetrics.h"
  47 #include "VSpace.h"
  48
  49 #include "frontends/Clipboard.h"
  50 #include "frontends/Selection.h"
  51
  52 #include "insets/InsetCollapsable.h"
  53 #include "insets/InsetCommand.h"
  54 #include "insets/InsetFloatList.h"
  55 #include "insets/InsetNewline.h"
  56 #include "insets/InsetQuotes.h"
  57 #include "insets/InsetSpecialChar.h"
  58 #include "insets/InsetText.h"
  59 #include "insets/InsetInfo.h"
  60
  61 #include "support/convert.h"
  62 #include "support/debug.h"
  63 #include "support/gettext.h"
  64 #include "support/lstrings.h"
  65 #include "support/lyxtime.h"
  66
  67 #include "mathed/InsetMathHull.h"
  68 #include "mathed/MathMacroTemplate.h"
  69
  70 #include <boost/next_prior.hpp>
  71
  72 #include <clocale>
  73 #include <sstream>
  74
  75 using namespace std;
  76 using namespace lyx::support;
  77
  78 namespace lyx {
  79
  80 using cap::copySelection;
  81 using cap::cutSelection;
  82 using cap::pasteFromStack;
  83 using cap::pasteClipboardText;
  84 using cap::pasteClipboardGraphics;
  85 using cap::replaceSelection;
  86
  87 // globals...
  88 static Font freefont(ignore_font, ignore_language);
  89 static bool toggleall = false;
  90
  91 static void toggleAndShow(Cursor & cur, Text * text,
  92         Font const & font, bool toggleall = true)
  93 {
  94         text->toggleFree(cur, font, toggleall);
  95
  96         if (font.language() != ignore_language ||
  97             font.fontInfo().number() != FONT_IGNORE) {
  98                 TextMetrics const & tm = cur.bv().textMetrics(text);
  99                 if (cur.boundary() != tm.isRTLBoundary(cur.pit(), cur.pos(),
 100                                                        cur.real_current_font))
 101                         text->setCursor(cur, cur.pit(), cur.pos(),
 102                                         false, !cur.boundary());
 103         }
 104 }
 105
 106
 107 static void moveCursor(Cursor & cur, bool selecting)
 108 {
 109         if (selecting || cur.mark())
 110                 cur.setSelection();
 111 }
 112
 113
 114 static void finishChange(Cursor & cur, bool selecting)
 115 {
 116         cur.finishUndo();
 117         moveCursor(cur, selecting);
 118 }
 119
 120
 121 static void mathDispatch(Cursor & cur, FuncRequest const & cmd, bool display)
 122 {
 123         cur.recordUndo();
 124         docstring sel = cur.selectionAsString(false);
 125
 126         // It may happen that sel is empty but there is a selection
 127         replaceSelection(cur);
 128
 129         if (sel.empty()) {
 130 #ifdef ENABLE_ASSERTIONS
 131                 const int old_pos = cur.pos();
 132 #endif
 133                 cur.insert(new InsetMathHull(hullSimple));
 134                 BOOST_ASSERT(old_pos == cur.pos());
 135                 cur.nextInset()->edit(cur, true);
 136                 // don't do that also for LFUN_MATH_MODE
 137                 // unless you want end up with always changing
 138                 // to mathrm when opening an inlined inset --
 139                 // I really hate "LyXfunc overloading"...
 140                 if (display)
 141                         cur.dispatch(FuncRequest(LFUN_MATH_DISPLAY));
 142                 // Avoid an unnecessary undo step if cmd.argument
 143                 // is empty
 144                 if (!cmd.argument().empty())
 145                         cur.dispatch(FuncRequest(LFUN_MATH_INSERT,
 146                                                  cmd.argument()));
 147         } else {
 148                 // create a macro if we see "\\newcommand"
 149                 // somewhere, and an ordinary formula
 150                 // otherwise
 151                 if (sel.find(from_ascii("\\newcommand")) == string::npos
 152                                 && sel.find(from_ascii("\\newlyxcommand")) == string::npos
 153                                 && sel.find(from_ascii("\\def")) == string::npos)
 154                 {
 155                         InsetMathHull * formula = new InsetMathHull;
 156                         istringstream is(to_utf8(sel));
 157                         Lexer lex(0, 0);
 158                         lex.setStream(is);
 159                         formula->read(lex);
 160                         if (formula->getType() == hullNone)
 161                                 // Don't create pseudo formulas if
 162                                 // delimiters are left out
 163                                 formula->mutate(hullSimple);
 164                         cur.insert(formula);
 165                 } else {
 166                         cur.insert(new MathMacroTemplate(sel));
 167                 }
 168         }
 169         cur.message(from_utf8(N_("Math editor mode")));
 170 }
 171
 172
 173 static void specialChar(Cursor & cur, InsetSpecialChar::Kind kind)
 174 {
 175         cur.recordUndo();
 176         cap::replaceSelection(cur);
 177         cur.insert(new InsetSpecialChar(kind));
 178         cur.posForward();
 179 }
 180
 181
 182 static bool doInsertInset(Cursor & cur, Text * text,
 183         FuncRequest const & cmd, bool edit, bool pastesel)
 184 {
 185         Buffer & buffer = cur.bv().buffer();
 186         BufferParams const & bparams = buffer.params();
 187         Inset * inset = createInset(buffer, cmd);
 188         if (!inset)
 189                 return false;
 190
 191         if (InsetCollapsable * ci = inset->asInsetCollapsable())
 192                 ci->setLayout(bparams);
 193
 194         cur.recordUndo();
 195         if (cmd.action == LFUN_INDEX_INSERT) {
 196                 docstring ds = subst(text->getStringToIndex(cur), '\n', ' ');
 197                 text->insertInset(cur, inset);
 198                 if (edit)
 199                         inset->edit(cur, true);
 200                 // Now put this into inset
 201                 static_cast<InsetCollapsable *>(inset)->text_.insertStringAsParagraphs(cur, ds);
 202                 return true;
 203         }
 204
 205         bool gotsel = false;
 206         if (cur.selection()) {
 207                 lyx::dispatch(FuncRequest(LFUN_CUT));
 208                 gotsel = true;
 209         }
 210         text->insertInset(cur, inset);
 211
 212         if (edit)
 213                 inset->edit(cur, true);
 214
 215         if (!gotsel || !pastesel)
 216                 return true;
 217
 218         lyx::dispatch(FuncRequest(LFUN_PASTE, "0"));
 219         InsetText * insetText = dynamic_cast<InsetText *>(inset);
 220         if (insetText && !insetText->allowMultiPar() || cur.lastpit() == 0) {
 221                 // reset first par to default
 222                 cur.text()->paragraphs().begin()
 223                         ->setEmptyOrDefaultLayout(bparams.documentClass());
 224                 cur.pos() = 0;
 225                 cur.pit() = 0;
 226                 // Merge multiple paragraphs -- hack
 227                 while (cur.lastpit() > 0)
 228                         mergeParagraph(bparams, cur.text()->paragraphs(), 0);
 229         } else {
 230                 // reset surrounding par to default
 231                 docstring const layoutname = insetText->useEmptyLayout()
 232                         ? bparams.documentClass().emptyLayoutName()
 233                         : bparams.documentClass().defaultLayoutName();
 234                 cur.leaveInset(*inset);
 235                 text->setLayout(cur, layoutname);
 236         }
 237
 238         return true;
 239 }
 240
 241
 242 string const freefont2string()
 243 {
 244         return freefont.toString(toggleall);
 245 }
 246
 247
 248 /// the type of outline operation
 249 enum OutlineOp {
 250         OutlineUp, // Move this header with text down
 251         OutlineDown,   // Move this header with text up
 252         OutlineIn, // Make this header deeper
 253         OutlineOut // Make this header shallower
 254 };
 255
 256
 257 static void outline(OutlineOp mode, Cursor & cur)
 258 {
 259         Buffer & buf = cur.buffer();
 260         pit_type & pit = cur.pit();
 261         ParagraphList & pars = buf.text().paragraphs();
 262         ParagraphList::iterator bgn = pars.begin();
 263         // The first paragraph of the area to be copied:
 264         ParagraphList::iterator start = boost::next(bgn, pit);
 265         // The final paragraph of area to be copied:
 266         ParagraphList::iterator finish = start;
 267         ParagraphList::iterator end = pars.end();
 268
 269         DocumentClass const & tc = buf.params().documentClass();
 270
 271         int const thistoclevel = start->layout().toclevel;
 272         int toclevel;
 273
 274         // Move out (down) from this section header
 275         if (finish != end)
 276                 ++finish;
 277         // Seek the one (on same level) below
 278         for (; finish != end; ++finish) {
 279                 toclevel = finish->layout().toclevel;
 280                 if (toclevel != Layout::NOT_IN_TOC && toclevel <= thistoclevel) {
 281                         break;
 282                 }
 283         }
 284
 285         switch (mode) {
 286                 case OutlineUp: {
 287                         ParagraphList::iterator dest = start;
 288                         // Move out (up) from this header
 289                         if (dest == bgn)
 290                                 return;
 291                         // Search previous same-level header above
 292                         do {
 293                                 --dest;
 294                                 toclevel = dest->layout().toclevel;
 295                         } while(dest != bgn
 296                                 && (toclevel == Layout::NOT_IN_TOC
 297                                     || toclevel > thistoclevel));
 298                         // Not found; do nothing
 299                         if (toclevel == Layout::NOT_IN_TOC || toclevel > thistoclevel)
 300                                 return;
 301                         pit_type const newpit = distance(bgn, dest);
 302                         pit_type const len = distance(start, finish);
 303                         pit_type const deletepit = pit + len;
 304                         buf.undo().recordUndo(cur, ATOMIC_UNDO, newpit, deletepit - 1);
 305                         pars.insert(dest, start, finish);
 306                         start = boost::next(pars.begin(), deletepit);
 307                         pit = newpit;
 308                         pars.erase(start, finish);
 309                         return;
 310                 }
 311                 case OutlineDown: {
 312                         ParagraphList::iterator dest = finish;
 313                         // One such was found:
 314                         pit_type newpit = distance(bgn, dest);
 315                         pit_type const len = distance(start, finish);
 316                         buf.undo().recordUndo(cur, ATOMIC_UNDO, pit, newpit - 1);
 317                         pars.insert(dest, start, finish);
 318                         start = boost::next(bgn, pit);
 319                         pit = newpit - len;
 320                         pars.erase(start, finish);
 321                         return;
 322                 }
 323                 case OutlineIn: {
 324                         pit_type const len = distance(start, finish);
 325                         buf.undo().recordUndo(cur, ATOMIC_UNDO, pit, pit + len - 1);
 326                         for (; start != finish; ++start) {
 327                                 toclevel = start->layout().toclevel;
 328                                 if (toclevel == Layout::NOT_IN_TOC)
 329                                         continue;
 330                                 DocumentClass::const_iterator lit = tc.begin();
 331                                 DocumentClass::const_iterator len = tc.end();
 332                                 for (; lit != len; ++lit) {
 333                                         if (lit->toclevel == toclevel + 1 &&
 334                                             start->layout().labeltype == lit->labeltype) {
 335                                                 start->setLayout(*lit);
 336                                                 break;
 337                                         }
 338                                 }
 339                         }
 340                         return;
 341                 }
 342                 case OutlineOut: {
 343                         pit_type const len = distance(start, finish);
 344                         buf.undo().recordUndo(cur, ATOMIC_UNDO, pit, pit + len - 1);
 345                         for (; start != finish; ++start) {
 346                                 toclevel = start->layout().toclevel;
 347                                 if (toclevel == Layout::NOT_IN_TOC)
 348                                         continue;
 349                                 DocumentClass::const_iterator lit = tc.begin();
 350                                 DocumentClass::const_iterator len = tc.end();
 351                                 for (; lit != len; ++lit) {
 352                                         if (lit->toclevel == toclevel - 1 &&
 353                                                 start->layout().labeltype == lit->labeltype) {
 354                                                         start->setLayout(*lit);
 355                                                         break;
 356                                         }
 357                                 }
 358                         }
 359                         return;
 360                 }
 361         }
 362 }
 363
 364
 365 void Text::number(Cursor & cur)
 366 {
 367         FontInfo font = ignore_font;
 368         font.setNumber(FONT_TOGGLE);
 369         toggleAndShow(cur, this, Font(font, ignore_language));
 370 }
 371
 372
 373 bool Text::isRTL(Buffer const & buffer, Paragraph const & par) const
 374 {
 375         return par.isRTL(buffer.params());
 376 }
 377
 378
 379 void Text::dispatch(Cursor & cur, FuncRequest & cmd)
 380 {
 381         LYXERR(Debug::ACTION, "Text::dispatch: cmd: " << cmd);
 382
 383         BufferView * bv = &cur.bv();
 384         TextMetrics & tm = bv->textMetrics(this);
 385         if (!tm.contains(cur.pit()))
 386                 lyx::dispatch(FuncRequest(LFUN_SCREEN_RECENTER));
 387
 388         // FIXME: We use the update flag to indicates wether a singlePar or a
 389         // full screen update is needed. We reset it here but shall we restore it
 390         // at the end?
 391         cur.noUpdate();
 392
 393         BOOST_ASSERT(cur.text() == this);
 394         CursorSlice oldTopSlice = cur.top();
 395         bool oldBoundary = cur.boundary();
 396         bool sel = cur.selection();
 397         // Signals that, even if needsUpdate == false, an update of the
 398         // cursor paragraph is required
 399         bool singleParUpdate = lyxaction.funcHasFlag(cmd.action,
 400                 LyXAction::SingleParUpdate);
 401         // Signals that a full-screen update is required
 402         bool needsUpdate = !(lyxaction.funcHasFlag(cmd.action,
 403                 LyXAction::NoUpdate) || singleParUpdate);
 404
 405         switch (cmd.action) {
 406
 407         case LFUN_PARAGRAPH_MOVE_DOWN: {
 408                 pit_type const pit = cur.pit();
 409                 recUndo(cur, pit, pit + 1);
 410                 cur.finishUndo();
 411                 swap(pars_[pit], pars_[pit + 1]);
 412                 updateLabels(cur.buffer());
 413                 needsUpdate = true;
 414                 ++cur.pit();
 415                 break;
 416         }
 417
 418         case LFUN_PARAGRAPH_MOVE_UP: {
 419                 pit_type const pit = cur.pit();
 420                 recUndo(cur, pit - 1, pit);
 421                 cur.finishUndo();
 422                 swap(pars_[pit], pars_[pit - 1]);
 423                 updateLabels(cur.buffer());
 424                 --cur.pit();
 425                 needsUpdate = true;
 426                 break;
 427         }
 428
 429         case LFUN_APPENDIX: {
 430                 Paragraph & par = cur.paragraph();
 431                 bool start = !par.params().startOfAppendix();
 432
 433 // FIXME: The code below only makes sense at top level.
 434 // Should LFUN_APPENDIX be restricted to top-level paragraphs?
 435                 // ensure that we have only one start_of_appendix in this document
 436                 // FIXME: this don't work for multipart document!
 437                 for (pit_type tmp = 0, end = pars_.size(); tmp != end; ++tmp) {
 438                         if (pars_[tmp].params().startOfAppendix()) {
 439                                 recUndo(cur, tmp);
 440                                 pars_[tmp].params().startOfAppendix(false);
 441                                 break;
 442                         }
 443                 }
 444
 445                 cur.recordUndo();
 446                 par.params().startOfAppendix(start);
 447
 448                 // we can set the refreshing parameters now
 449                 updateLabels(cur.buffer());
 450                 break;
 451         }
 452
 453         case LFUN_WORD_DELETE_FORWARD:
 454                 if (cur.selection()) {
 455                         cutSelection(cur, true, false);
 456                 } else
 457                         deleteWordForward(cur);
 458                 finishChange(cur, false);
 459                 break;
 460
 461         case LFUN_WORD_DELETE_BACKWARD:
 462                 if (cur.selection()) {
 463                         cutSelection(cur, true, false);
 464                 } else
 465                         deleteWordBackward(cur);
 466                 finishChange(cur, false);
 467                 break;
 468
 469         case LFUN_LINE_DELETE:
 470                 if (cur.selection()) {
 471                         cutSelection(cur, true, false);
 472                 } else
 473                         tm.deleteLineForward(cur);
 474                 finishChange(cur, false);
 475                 break;
 476
 477         case LFUN_BUFFER_BEGIN:
 478         case LFUN_BUFFER_BEGIN_SELECT:
 479                 needsUpdate |= cur.selHandle(cmd.action == LFUN_BUFFER_BEGIN_SELECT);
 480                 if (cur.depth() == 1) {
 481                         needsUpdate |= cursorTop(cur);
 482                 } else {
 483                         cur.undispatched();
 484                 }
 485                 cur.updateFlags(Update::FitCursor);
 486                 break;
 487
 488         case LFUN_BUFFER_END:
 489         case LFUN_BUFFER_END_SELECT:
 490                 needsUpdate |= cur.selHandle(cmd.action == LFUN_BUFFER_END_SELECT);
 491                 if (cur.depth() == 1) {
 492                         needsUpdate |= cursorBottom(cur);
 493                 } else {
 494                         cur.undispatched();
 495                 }
 496                 cur.updateFlags(Update::FitCursor);
 497                 break;
 498
 499         case LFUN_CHAR_FORWARD:
 500         case LFUN_CHAR_FORWARD_SELECT:
 501                 //LYXERR0(" LFUN_CHAR_FORWARD[SEL]:\n" << cur);
 502                 needsUpdate |= cur.selHandle(cmd.action == LFUN_CHAR_FORWARD_SELECT);
 503                 needsUpdate |= cursorForward(cur);
 504
 505                 if (!needsUpdate && oldTopSlice == cur.top()
 506                                 && cur.boundary() == oldBoundary) {
 507                         cur.undispatched();
 508                         cmd = FuncRequest(LFUN_FINISHED_FORWARD);
 509                 }
 510                 break;
 511
 512         case LFUN_CHAR_BACKWARD:
 513         case LFUN_CHAR_BACKWARD_SELECT:
 514                 //lyxerr << "handle LFUN_CHAR_BACKWARD[_SELECT]:\n" << cur << endl;
 515                 needsUpdate |= cur.selHandle(cmd.action == LFUN_CHAR_BACKWARD_SELECT);
 516                 needsUpdate |= cursorBackward(cur);
 517
 518                 if (!needsUpdate && oldTopSlice == cur.top()
 519                         && cur.boundary() == oldBoundary) {
 520                         cur.undispatched();
 521                         cmd = FuncRequest(LFUN_FINISHED_BACKWARD);
 522                 }
 523                 break;
 524
 525         case LFUN_CHAR_LEFT:
 526         case LFUN_CHAR_LEFT_SELECT:
 527                 if (lyxrc.visual_cursor) {
 528                         needsUpdate |= cur.selHandle(cmd.action == LFUN_CHAR_LEFT_SELECT);
 529                         needsUpdate |= cursorVisLeft(cur);
 530                         if (!needsUpdate && oldTopSlice == cur.top()
 531                                         && cur.boundary() == oldBoundary) {
 532                                 cur.undispatched();
 533                                 cmd = FuncRequest(LFUN_FINISHED_LEFT);
 534                         }
 535                 } else {
 536                         if (reverseDirectionNeeded(cur)) {
 537                                 cmd.action = cmd.action == LFUN_CHAR_LEFT_SELECT ?
 538                                         LFUN_CHAR_FORWARD_SELECT : LFUN_CHAR_FORWARD;
 539                         } else {
 540                                 cmd.action = cmd.action == LFUN_CHAR_LEFT_SELECT ?
 541                                         LFUN_CHAR_BACKWARD_SELECT : LFUN_CHAR_BACKWARD;
 542                         }
 543                         dispatch(cur, cmd);
 544                         return;
 545                 }
 546                 break;
 547
 548         case LFUN_CHAR_RIGHT:
 549         case LFUN_CHAR_RIGHT_SELECT:
 550                 if (lyxrc.visual_cursor) {
 551                         needsUpdate |= cur.selHandle(cmd.action == LFUN_CHAR_RIGHT_SELECT);
 552                         needsUpdate |= cursorVisRight(cur);
 553                         if (!needsUpdate && oldTopSlice == cur.top()
 554                                         && cur.boundary() == oldBoundary) {
 555                                 cur.undispatched();
 556                                 cmd = FuncRequest(LFUN_FINISHED_RIGHT);
 557                         }
 558                 } else {
 559                         if (reverseDirectionNeeded(cur)) {
 560                                 cmd.action = cmd.action == LFUN_CHAR_RIGHT_SELECT ?
 561                                         LFUN_CHAR_BACKWARD_SELECT : LFUN_CHAR_BACKWARD;
 562                         } else {
 563                                 cmd.action = cmd.action == LFUN_CHAR_RIGHT_SELECT ?
 564                                         LFUN_CHAR_FORWARD_SELECT : LFUN_CHAR_FORWARD;
 565                         }
 566                         dispatch(cur, cmd);
 567                         return;
 568                 }
 569                 break;
 570
 571
 572         case LFUN_UP_SELECT:
 573         case LFUN_DOWN_SELECT:
 574         case LFUN_UP:
 575         case LFUN_DOWN: {
 576                 // stop/start the selection
 577                 bool select = cmd.action == LFUN_DOWN_SELECT ||
 578                         cmd.action == LFUN_UP_SELECT;
 579                 cur.selHandle(select);
 580
 581                 // move cursor up/down
 582                 bool up = cmd.action == LFUN_UP_SELECT || cmd.action == LFUN_UP;
 583                 bool const successful = cur.upDownInText(up, needsUpdate);
 584                 if (successful) {
 585                         // redraw if you leave mathed (for the decorations)
 586                         needsUpdate |= cur.beforeDispatchCursor().inMathed();
 587                 } else
 588                         cur.undispatched();
 589
 590                 break;
 591         }
 592
 593         case LFUN_PARAGRAPH_UP:
 594         case LFUN_PARAGRAPH_UP_SELECT:
 595                 needsUpdate |= cur.selHandle(cmd.action == LFUN_PARAGRAPH_UP_SELECT);
 596                 needsUpdate |= cursorUpParagraph(cur);
 597                 break;
 598
 599         case LFUN_PARAGRAPH_DOWN:
 600         case LFUN_PARAGRAPH_DOWN_SELECT:
 601                 needsUpdate |= cur.selHandle(cmd.action == LFUN_PARAGRAPH_DOWN_SELECT);
 602                 needsUpdate |= cursorDownParagraph(cur);
 603                 break;
 604
 605         case LFUN_LINE_BEGIN:
 606         case LFUN_LINE_BEGIN_SELECT:
 607                 needsUpdate |= cur.selHandle(cmd.action == LFUN_LINE_BEGIN_SELECT);
 608                 needsUpdate |= tm.cursorHome(cur);
 609                 break;
 610
 611         case LFUN_LINE_END:
 612         case LFUN_LINE_END_SELECT:
 613                 needsUpdate |= cur.selHandle(cmd.action == LFUN_LINE_END_SELECT);
 614                 needsUpdate |= tm.cursorEnd(cur);
 615                 break;
 616
 617         case LFUN_WORD_RIGHT:
 618         case LFUN_WORD_RIGHT_SELECT:
 619                 //FIXME: for visual cursor mode, really move right
 620                 if (reverseDirectionNeeded(cur)) {
 621                         cmd.action = cmd.action == LFUN_WORD_RIGHT_SELECT ?
 622                                         LFUN_WORD_BACKWARD_SELECT : LFUN_WORD_BACKWARD;
 623                 } else {
 624                         cmd.action = cmd.action == LFUN_WORD_RIGHT_SELECT ?
 625                                         LFUN_WORD_FORWARD_SELECT : LFUN_WORD_FORWARD;
 626                 }
 627                 dispatch(cur, cmd);
 628                 return;
 629
 630         case LFUN_WORD_FORWARD:
 631         case LFUN_WORD_FORWARD_SELECT:
 632                 needsUpdate |= cur.selHandle(cmd.action == LFUN_WORD_FORWARD_SELECT);
 633                 needsUpdate |= cursorForwardOneWord(cur);
 634                 break;
 635
 636         case LFUN_WORD_LEFT:
 637         case LFUN_WORD_LEFT_SELECT:
 638                 //FIXME: for visual cursor mode, really move left
 639                 if (reverseDirectionNeeded(cur)) {
 640                         cmd.action = cmd.action == LFUN_WORD_LEFT_SELECT ?
 641                                         LFUN_WORD_FORWARD_SELECT : LFUN_WORD_FORWARD;
 642                 } else {
 643                         cmd.action = cmd.action == LFUN_WORD_LEFT_SELECT ?
 644                                         LFUN_WORD_BACKWARD_SELECT : LFUN_WORD_BACKWARD;
 645                 }
 646                 dispatch(cur, cmd);
 647                 return;
 648
 649         case LFUN_WORD_BACKWARD:
 650         case LFUN_WORD_BACKWARD_SELECT:
 651                 needsUpdate |= cur.selHandle(cmd.action == LFUN_WORD_BACKWARD_SELECT);
 652                 needsUpdate |= cursorBackwardOneWord(cur);
 653                 break;
 654
 655         case LFUN_WORD_SELECT: {
 656                 selectWord(cur, WHOLE_WORD);
 657                 finishChange(cur, true);
 658                 break;
 659         }
 660
 661         case LFUN_NEWLINE_INSERT: {
 662                 InsetNewlineParams inp;
 663                 docstring arg = cmd.argument();
 664                 // this avoids a double undo
 665                 // FIXME: should not be needed, ideally
 666                 if (!cur.selection())
 667                         cur.recordUndo();
 668                 cap::replaceSelection(cur);
 669                 if (arg == "linebreak")
 670                         inp.kind = InsetNewlineParams::LINEBREAK;
 671                 else
 672                         inp.kind = InsetNewlineParams::NEWLINE;
 673                 cur.insert(new InsetNewline(inp));
 674                 cur.posForward();
 675                 moveCursor(cur, false);
 676                 break;
 677         }
 678
 679         case LFUN_CHAR_DELETE_FORWARD:
 680                 if (!cur.selection()) {
 681                         if (cur.pos() == cur.paragraph().size())
 682                                 // Par boundary, force full-screen update
 683                                 singleParUpdate = false;
 684                         needsUpdate |= erase(cur);
 685                         cur.resetAnchor();
 686                         // It is possible to make it a lot faster still
 687                         // just comment out the line below...
 688                 } else {
 689                         cutSelection(cur, true, false);
 690                         singleParUpdate = false;
 691                 }
 692                 moveCursor(cur, false);
 693                 break;
 694
 695         case LFUN_DELETE_FORWARD_SKIP:
 696                 // Reverse the effect of LFUN_BREAK_PARAGRAPH_SKIP.
 697                 if (!cur.selection()) {
 698                         if (cur.pos() == cur.lastpos()) {
 699                                 cursorForward(cur);
 700                                 cursorBackward(cur);
 701                         }
 702                         erase(cur);
 703                         cur.resetAnchor();
 704                 } else {
 705                         cutSelection(cur, true, false);
 706                 }
 707                 break;
 708
 709
 710         case LFUN_CHAR_DELETE_BACKWARD:
 711                 if (!cur.selection()) {
 712                         if (bv->getIntl().getTransManager().backspace()) {
 713                                 // Par boundary, full-screen update
 714                                 if (cur.pos() == 0)
 715                                         singleParUpdate = false;
 716                                 needsUpdate |= backspace(cur);
 717                                 cur.resetAnchor();
 718                                 // It is possible to make it a lot faster still
 719                                 // just comment out the line below...
 720                         }
 721                 } else {
 722                         cutSelection(cur, true, false);
 723                         singleParUpdate = false;
 724                 }
 725                 break;
 726
 727         case LFUN_DELETE_BACKWARD_SKIP:
 728                 // Reverse the effect of LFUN_BREAK_PARAGRAPH_SKIP.
 729                 if (!cur.selection()) {
 730                         // FIXME: look here
 731                         //CursorSlice cur = cursor();
 732                         backspace(cur);
 733                         //anchor() = cur;
 734                 } else {
 735                         cutSelection(cur, true, false);
 736                 }
 737                 break;
 738
 739         case LFUN_BREAK_PARAGRAPH:
 740                 cap::replaceSelection(cur);
 741                 breakParagraph(cur, cmd.argument() == "inverse");
 742                 cur.resetAnchor();
 743                 break;
 744
 745         case LFUN_BREAK_PARAGRAPH_SKIP: {
 746                 // When at the beginning of a paragraph, remove
 747                 // indentation.  Otherwise, do the same as LFUN_BREAK_PARAGRAPH.
 748                 cap::replaceSelection(cur);
 749                 if (cur.pos() == 0)
 750                         cur.paragraph().params().labelWidthString(docstring());
 751                 else
 752                         breakParagraph(cur, false);
 753                 cur.resetAnchor();
 754                 break;
 755         }
 756
 757         // TODO
 758         // With the creation of LFUN_PARAGRAPH_PARAMS, this is now redundant,
 759         // as its duties can be performed there. Should it be removed??
 760         // FIXME For now, it can just dispatch LFUN_PARAGRAPH_PARAMS...
 761         case LFUN_PARAGRAPH_SPACING: {
 762                 Paragraph & par = cur.paragraph();
 763                 Spacing::Space cur_spacing = par.params().spacing().getSpace();
 764                 string cur_value = "1.0";
 765                 if (cur_spacing == Spacing::Other)
 766                         cur_value = par.params().spacing().getValueAsString();
 767
 768                 istringstream is(to_utf8(cmd.argument()));
 769                 string tmp;
 770                 is >> tmp;
 771                 Spacing::Space new_spacing = cur_spacing;
 772                 string new_value = cur_value;
 773                 if (tmp.empty()) {
 774                         lyxerr << "Missing argument to `paragraph-spacing'"
 775                                << endl;
 776                 } else if (tmp == "single") {
 777                         new_spacing = Spacing::Single;
 778                 } else if (tmp == "onehalf") {
 779                         new_spacing = Spacing::Onehalf;
 780                 } else if (tmp == "double") {
 781                         new_spacing = Spacing::Double;
 782                 } else if (tmp == "other") {
 783                         new_spacing = Spacing::Other;
 784                         string tmpval = "0.0";
 785                         is >> tmpval;
 786                         lyxerr << "new_value = " << tmpval << endl;
 787                         if (tmpval != "0.0")
 788                                 new_value = tmpval;
 789                 } else if (tmp == "default") {
 790                         new_spacing = Spacing::Default;
 791                 } else {
 792                         lyxerr << to_utf8(_("Unknown spacing argument: "))
 793                                << to_utf8(cmd.argument()) << endl;
 794                 }
 795                 if (cur_spacing != new_spacing || cur_value != new_value)
 796                         par.params().spacing(Spacing(new_spacing, new_value));
 797                 break;
 798         }
 799
 800         case LFUN_INSET_INSERT: {
 801                 cur.recordUndo();
 802                 Inset * inset = createInset(bv->buffer(), cmd);
 803                 if (inset) {
 804                         // FIXME (Abdel 01/02/2006):
 805                         // What follows would be a partial fix for bug 2154:
 806                         //   http://bugzilla.lyx.org/show_bug.cgi?id=2154
 807                         // This automatically put the label inset _after_ a
 808                         // numbered section. It should be possible to extend the mechanism
 809                         // to any kind of LateX environement.
 810                         // The correct way to fix that bug would be at LateX generation.
 811                         // I'll let the code here for reference as it could be used for some
 812                         // other feature like "automatic labelling".
 813                         /*
 814                         Paragraph & par = pars_[cur.pit()];
 815                         if (inset->lyxCode() == LABEL_CODE
 816                                 && par.layout().labeltype == LABEL_COUNTER) {
 817                                 // Go to the end of the paragraph
 818                                 // Warning: Because of Change-Tracking, the last
 819                                 // position is 'size()' and not 'size()-1':
 820                                 cur.pos() = par.size();
 821                                 // Insert a new paragraph
 822                                 FuncRequest fr(LFUN_BREAK_PARAGRAPH);
 823                                 dispatch(cur, fr);
 824                         }
 825                         */
 826                         if (cur.selection())
 827                                 cutSelection(cur, true, false);
 828                         cur.insert(inset);
 829                         cur.posForward();
 830                 }
 831                 break;
 832         }
 833
 834         case LFUN_INSET_DISSOLVE:
 835                 needsUpdate |= dissolveInset(cur);
 836                 break;
 837
 838         case LFUN_INSET_SETTINGS: {
 839                 // if there is an inset at cursor, access this
 840                 Inset * inset = cur.nextInset();
 841                 if (inset) {
 842                         inset->showInsetDialog(bv);
 843                         break;
 844                 }
 845                 // if not work, access the underlying inset.
 846                 cur.inset().showInsetDialog(bv);
 847                 break;
 848         }
 849
 850         case LFUN_SPACE_INSERT:
 851                 if (cur.paragraph().layout().free_spacing)
 852                         insertChar(cur, ' ');
 853                 else {
 854                         doInsertInset(cur, this, cmd, false, false);
 855                         cur.posForward();
 856                 }
 857                 moveCursor(cur, false);
 858                 break;
 859
 860         case LFUN_SPECIALCHAR_INSERT: {
 861                 string const name = to_utf8(cmd.argument());
 862                 if (name == "hyphenation")
 863                         specialChar(cur, InsetSpecialChar::HYPHENATION);
 864                 else if (name == "ligature-break")
 865                         specialChar(cur, InsetSpecialChar::LIGATURE_BREAK);
 866                 else if (name == "slash")
 867                         specialChar(cur, InsetSpecialChar::SLASH);
 868                 else if (name == "nobreakdash")
 869                         specialChar(cur, InsetSpecialChar::NOBREAKDASH);
 870                 else if (name == "dots")
 871                         specialChar(cur, InsetSpecialChar::LDOTS);
 872                 else if (name == "end-of-sentence")
 873                         specialChar(cur, InsetSpecialChar::END_OF_SENTENCE);
 874                 else if (name == "menu-separator")
 875                         specialChar(cur, InsetSpecialChar::MENU_SEPARATOR);
 876                 else if (name.empty())
 877                         lyxerr << "LyX function 'specialchar-insert' needs an argument." << endl;
 878                 else
 879                         lyxerr << "Wrong argument for LyX function 'specialchar-insert'." << endl;
 880                 break;
 881         }
 882
 883         case LFUN_WORD_UPCASE:
 884                 changeCase(cur, text_uppercase);
 885                 break;
 886
 887         case LFUN_WORD_LOWCASE:
 888                 changeCase(cur, text_lowercase);
 889                 break;
 890
 891         case LFUN_WORD_CAPITALIZE:
 892                 changeCase(cur, text_capitalization);
 893                 break;
 894
 895         case LFUN_CHARS_TRANSPOSE:
 896                 charsTranspose(cur);
 897                 break;
 898
 899         case LFUN_PASTE: {
 900                 cur.message(_("Paste"));
 901                 cap::replaceSelection(cur);
 902
 903                 // without argument?
 904                 string const arg = to_utf8(cmd.argument());
 905                 if (arg.empty()) {
 906                         if (theClipboard().isInternal())
 907                                 pasteFromStack(cur, bv->buffer().errorList("Paste"), 0);
 908                         else if (theClipboard().hasGraphicsContents())
 909                                 pasteClipboardGraphics(cur, bv->buffer().errorList("Paste"));
 910                         else
 911                                 pasteClipboardText(cur, bv->buffer().errorList("Paste"));
 912                 } else if (isStrUnsignedInt(arg)) {
 913                         // we have a numerical argument
 914                         pasteFromStack(cur, bv->buffer().errorList("Paste"),
 915                                        convert<unsigned int>(arg));
 916                 } else {
 917                         Clipboard::GraphicsType type = Clipboard::AnyGraphicsType;
 918                         if (arg == "pdf")
 919                                 type = Clipboard::PdfGraphicsType;
 920                         else if (arg == "png")
 921                                 type = Clipboard::PngGraphicsType;
 922                         else if (arg == "jpeg")
 923                                 type = Clipboard::JpegGraphicsType;
 924                         else if (arg == "linkback")
 925                                 type = Clipboard::LinkBackGraphicsType;
 926                         else
 927                                 BOOST_ASSERT(false);
 928
 929                         pasteClipboardGraphics(cur, bv->buffer().errorList("Paste"), type);
 930                 }
 931
 932                 bv->buffer().errors("Paste");
 933                 cur.clearSelection(); // bug 393
 934                 cur.finishUndo();
 935                 break;
 936         }
 937
 938         case LFUN_CUT:
 939                 cutSelection(cur, true, true);
 940                 cur.message(_("Cut"));
 941                 break;
 942
 943         case LFUN_COPY:
 944                 copySelection(cur);
 945                 cur.message(_("Copy"));
 946                 break;
 947
 948         case LFUN_SERVER_GET_XY:
 949                 cur.message(from_utf8(
 950                         convert<string>(tm.cursorX(cur.top(), cur.boundary()))
 951                         + ' ' + convert<string>(tm.cursorY(cur.top(), cur.boundary()))));
 952                 break;
 953
 954         case LFUN_SERVER_SET_XY: {
 955                 int x = 0;
 956                 int y = 0;
 957                 istringstream is(to_utf8(cmd.argument()));
 958                 is >> x >> y;
 959                 if (!is)
 960                         lyxerr << "SETXY: Could not parse coordinates in '"
 961                                << to_utf8(cmd.argument()) << endl;
 962                 else
 963                         tm.setCursorFromCoordinates(cur, x, y);
 964                 break;
 965         }
 966
 967         case LFUN_SERVER_GET_FONT:
 968                 if (cur.current_font.fontInfo().shape() == ITALIC_SHAPE)
 969                         cur.message(from_ascii("E"));
 970                 else if (cur.current_font.fontInfo().shape() == SMALLCAPS_SHAPE)
 971                         cur.message(from_ascii("N"));
 972                 else
 973                         cur.message(from_ascii("0"));
 974                 break;
 975
 976         case LFUN_SERVER_GET_LAYOUT:
 977                 cur.message(cur.paragraph().layout().name());
 978                 break;
 979
 980         case LFUN_LAYOUT: {
 981                 docstring layout = cmd.argument();
 982                 LYXERR(Debug::INFO, "LFUN_LAYOUT: (arg) " << to_utf8(layout));
 983
 984                 Paragraph const & para = cur.paragraph();
 985                 docstring const old_layout = para.layout().name();
 986                 DocumentClass const & tclass = bv->buffer().params().documentClass();
 987
 988                 if (layout.empty())
 989                         layout = tclass.defaultLayoutName();
 990
 991                 if (para.forceEmptyLayout())
 992                         // in this case only the empty layout is allowed
 993                         layout = tclass.emptyLayoutName();
 994                 else if (para.useEmptyLayout()) {
 995                         // in this case, default layout maps to empty layout
 996                         if (layout == tclass.defaultLayoutName())
 997                                 layout = tclass.emptyLayoutName();
 998                 } else {
 999                         // otherwise, the empty layout maps to the default
1000                         if (layout == tclass.emptyLayoutName())
1001                                 layout = tclass.defaultLayoutName();
1002                 }
1003
1004                 bool hasLayout = tclass.hasLayout(layout);
1005
1006                 // If the entry is obsolete, use the new one instead.
1007                 if (hasLayout) {
1008                         docstring const & obs = tclass[layout].obsoleted_by();
1009                         if (!obs.empty())
1010                                 layout = obs;
1011                 }
1012
1013                 if (!hasLayout) {
1014                         cur.errorMessage(from_utf8(N_("Layout ")) + cmd.argument() +
1015                                 from_utf8(N_(" not known")));
1016                         break;
1017                 }
1018
1019                 bool change_layout = (old_layout != layout);
1020
1021                 if (!change_layout && cur.selection() &&
1022                         cur.selBegin().pit() != cur.selEnd().pit())
1023                 {
1024                         pit_type spit = cur.selBegin().pit();
1025                         pit_type epit = cur.selEnd().pit() + 1;
1026                         while (spit != epit) {
1027                                 if (pars_[spit].layout().name() != old_layout) {
1028                                         change_layout = true;
1029                                         break;
1030                                 }
1031                                 ++spit;
1032                         }
1033                 }
1034
1035                 if (change_layout)
1036                         setLayout(cur, layout);
1037
1038                 break;
1039         }
1040
1041         case LFUN_CLIPBOARD_PASTE:
1042                 cur.clearSelection();
1043                 pasteClipboardText(cur, bv->buffer().errorList("Paste"),
1044                                cmd.argument() == "paragraph");
1045                 bv->buffer().errors("Paste");
1046                 break;
1047
1048         case LFUN_PRIMARY_SELECTION_PASTE:
1049                 pasteString(cur, theSelection().get(),
1050                             cmd.argument() == "paragraph");
1051                 break;
1052
1053         case LFUN_UNICODE_INSERT: {
1054                 if (cmd.argument().empty())
1055                         break;
1056                 docstring hexstring = cmd.argument();
1057                 if (isHex(hexstring)) {
1058                         char_type c = hexToInt(hexstring);
1059                         if (c >= 32 && c < 0x10ffff) {
1060                                 lyxerr << "Inserting c: " << c << endl;
1061                                 docstring s = docstring(1, c);
1062                                 lyx::dispatch(FuncRequest(LFUN_SELF_INSERT, s));
1063                         }
1064                 }
1065                 break;
1066         }
1067
1068         case LFUN_QUOTE_INSERT: {
1069                 Paragraph & par = cur.paragraph();
1070                 pos_type pos = cur.pos();
1071                 BufferParams const & bufparams = bv->buffer().params();
1072                 Layout const & style = par.layout();
1073                 if (!style.pass_thru
1074                     && par.getFontSettings(bufparams, pos).language()->lang() != "hebrew") {
1075                         // this avoids a double undo
1076                         // FIXME: should not be needed, ideally
1077                         if (!cur.selection())
1078                                 cur.recordUndo();
1079                         cap::replaceSelection(cur);
1080                         pos = cur.pos();
1081                         char_type c;
1082                         if (pos == 0)
1083                                 c = ' ';
1084                         else if (cur.prevInset() && cur.prevInset()->isSpace())
1085                                 c = ' ';
1086                         else
1087                                 c = par.getChar(pos - 1);
1088                         string arg = to_utf8(cmd.argument());
1089                         cur.insert(new InsetQuotes(c, bufparams.quotes_language,
1090                                 (arg == "single") ? InsetQuotes::SingleQuotes
1091                                         : InsetQuotes::DoubleQuotes));
1092                         cur.posForward();
1093                 }
1094                 else
1095                         lyx::dispatch(FuncRequest(LFUN_SELF_INSERT, "\""));
1096                 break;
1097         }
1098
1099         case LFUN_DATE_INSERT: {
1100                 string const format = cmd.argument().empty()
1101                         ? lyxrc.date_insert_format : to_utf8(cmd.argument());
1102                 string const time = formatted_time(current_time(), format);
1103                 lyx::dispatch(FuncRequest(LFUN_SELF_INSERT, time));
1104                 break;
1105         }
1106
1107         case LFUN_MOUSE_TRIPLE:
1108                 if (cmd.button() == mouse_button::button1) {
1109                         tm.cursorHome(cur);
1110                         cur.resetAnchor();
1111                         tm.cursorEnd(cur);
1112                         cur.setSelection();
1113                         bv->cursor() = cur;
1114                 }
1115                 break;
1116
1117         case LFUN_MOUSE_DOUBLE:
1118                 if (cmd.button() == mouse_button::button1) {
1119                         selectWord(cur, WHOLE_WORD_STRICT);
1120                         bv->cursor() = cur;
1121                 }
1122                 break;
1123
1124         // Single-click on work area
1125         case LFUN_MOUSE_PRESS:
1126                 // We are not marking a selection with the keyboard in any case.
1127                 cur.bv().cursor().mark() = false;
1128                 switch (cmd.button()) {
1129                 case mouse_button::button1:
1130                         // Set the cursor
1131                         if (!bv->mouseSetCursor(cur, cmd.argument() == "region-select"))
1132                                 cur.updateFlags(Update::SinglePar | Update::FitCursor);
1133                         break;
1134
1135                 case mouse_button::button2:
1136                         // Middle mouse pasting.
1137                         if (!cap::selection()) {
1138                                 // There is no local selection in the current buffer, so try to
1139                                 // paste primary selection instead.
1140                                 lyx::dispatch(FuncRequest(LFUN_PRIMARY_SELECTION_PASTE,
1141                                         "paragraph"));
1142                                 // Nothing else to do.
1143                                 cur.noUpdate();
1144                                 return;
1145                         }
1146                         // Copy the selection buffer to the clipboard stack, because we want it
1147                         // to appear in the "Edit->Paste recent" menu.
1148                         cap::copySelectionToStack();
1149                         cap::pasteSelection(bv->cursor(), bv->buffer().errorList("Paste"));
1150                         cur.updateFlags(Update::Force | Update::FitCursor);
1151                         bv->buffer().errors("Paste");
1152                         bv->buffer().markDirty();
1153                         bv->cursor().finishUndo();
1154                         break;
1155
1156                 case mouse_button::button3:
1157                         if (cur.selection()) {
1158                                 DocIterator const selbeg = cur.selectionBegin();
1159                                 DocIterator const selend = cur.selectionEnd();
1160                                 Cursor tmpcur = cur;
1161                                 tm.setCursorFromCoordinates(tmpcur, cmd.x, cmd.y);
1162                                 // Don't do anything if we right-click a selection, a selection
1163                                 // context menu should popup instead.
1164                                 if (tmpcur < selbeg || tmpcur >= selend) {
1165                                         cur.noUpdate();
1166                                         return;
1167                                 }
1168                         }
1169                         if (!bv->mouseSetCursor(cur, false)) {
1170                                 cur.updateFlags(Update::SinglePar | Update::FitCursor);
1171                                 break;
1172                         }
1173                 } // switch (cmd.button())
1174                 break;
1175
1176         case LFUN_MOUSE_MOTION: {
1177                 // Mouse motion with right or middle mouse do nothing for now.
1178                 if (cmd.button() != mouse_button::button1) {
1179                         cur.noUpdate();
1180                         return;
1181                 }
1182                 // ignore motions deeper nested than the real anchor
1183                 Cursor & bvcur = cur.bv().cursor();
1184                 if (!bvcur.anchor_.hasPart(cur)) {
1185                         cur.undispatched();
1186                         break;
1187                 }
1188                 CursorSlice old = bvcur.top();
1189
1190                 int const wh = bv->workHeight();
1191                 int const y = max(0, min(wh - 1, cmd.y));
1192
1193                 tm.setCursorFromCoordinates(cur, cmd.x, y);
1194                 cur.setTargetX(cmd.x);
1195                 if (cmd.y >= wh)
1196                         lyx::dispatch(FuncRequest(LFUN_DOWN_SELECT));
1197                 else if (cmd.y < 0)
1198                         lyx::dispatch(FuncRequest(LFUN_UP_SELECT));
1199                 // This is to allow jumping over large insets
1200                 if (cur.top() == old) {
1201                         if (cmd.y >= wh)
1202                                 lyx::dispatch(FuncRequest(LFUN_DOWN_SELECT));
1203                         else if (cmd.y < 0)
1204                                 lyx::dispatch(FuncRequest(LFUN_UP_SELECT));
1205                 }
1206                 // We continue with our existing selection or start a new one, so don't
1207                 // reset the anchor.
1208                 bvcur.setCursor(cur);
1209                 bvcur.selection() = true;
1210                 if (cur.top() == old) {
1211                         // We didn't move one iota, so no need to update the screen.
1212                         cur.updateFlags(Update::SinglePar | Update::FitCursor);
1213                         //cur.noUpdate();
1214                         return;
1215                 }
1216                 break;
1217         }
1218
1219         case LFUN_MOUSE_RELEASE:
1220                 switch (cmd.button()) {
1221                 case mouse_button::button1:
1222                         // Cursor was set at LFUN_MOUSE_PRESS or LFUN_MOUSE_MOTION time.
1223                         // If there is a new selection, update persistent selection;
1224                         // otherwise, single click does not clear persistent selection
1225                         // buffer.
1226                         if (cur.selection()) {
1227                                 // Finish selection.
1228                                 // If double click, cur is moved to the end of word by selectWord
1229                                 // but bvcur is current mouse position.
1230                                 cur.bv().cursor().selection() = true;
1231                         }
1232                         // FIXME: We could try to handle drag and drop of selection here.
1233                         cur.noUpdate();
1234                         return;
1235
1236                 case mouse_button::button2:
1237                         // Middle mouse pasting is handled at mouse press time,
1238                         // see LFUN_MOUSE_PRESS.
1239                         cur.noUpdate();
1240                         return;
1241
1242                 case mouse_button::button3:
1243                         // Cursor was set at LFUN_MOUSE_PRESS time.
1244                         // FIXME: If there is a selection we could try to handle a special
1245                         // drag & drop context menu.
1246                         cur.noUpdate();
1247                         return;
1248
1249                 } // switch (cmd.button())
1250
1251                 break;
1252
1253         case LFUN_SELF_INSERT: {
1254                 if (cmd.argument().empty())
1255                         break;
1256
1257                 // Automatically delete the currently selected
1258                 // text and replace it with what is being
1259                 // typed in now. Depends on lyxrc settings
1260                 // "auto_region_delete", which defaults to
1261                 // true (on).
1262
1263                 if (lyxrc.auto_region_delete && cur.selection())
1264                         cutSelection(cur, false, false);
1265
1266                 cur.clearSelection();
1267                 Font const old_font = cur.real_current_font;
1268
1269                 docstring::const_iterator cit = cmd.argument().begin();
1270                 docstring::const_iterator end = cmd.argument().end();
1271                 for (; cit != end; ++cit)
1272                         bv->translateAndInsert(*cit, this, cur);
1273
1274                 cur.resetAnchor();
1275                 moveCursor(cur, false);
1276                 break;
1277         }
1278
1279         case LFUN_HYPERLINK_INSERT: {
1280                 InsetCommandParams p(HYPERLINK_CODE);
1281                 docstring content;
1282                 if (cur.selection()) {
1283                         content = cur.selectionAsString(false);
1284                         cutSelection(cur, true, false);
1285                 }
1286                 p["target"] = (cmd.argument().empty()) ?
1287                         content : cmd.argument();
1288                 string const data = InsetCommandMailer::params2string("href", p);
1289                 if (p["target"].empty()) {
1290                         bv->showDialog("href", data);
1291                 } else {
1292                         FuncRequest fr(LFUN_INSET_INSERT, data);
1293                         dispatch(cur, fr);
1294                 }
1295                 break;
1296         }
1297
1298         case LFUN_LABEL_INSERT: {
1299                 InsetCommandParams p(LABEL_CODE);
1300                 // Try to generate a valid label
1301                 p["name"] = (cmd.argument().empty()) ?
1302                         cur.getPossibleLabel() :
1303                         cmd.argument();
1304                 string const data = InsetCommandMailer::params2string("label", p);
1305
1306                 if (cmd.argument().empty()) {
1307                         bv->showDialog("label", data);
1308                 } else {
1309                         FuncRequest fr(LFUN_INSET_INSERT, data);
1310                         dispatch(cur, fr);
1311                 }
1312                 break;
1313         }
1314
1315         case LFUN_INFO_INSERT: {
1316                 Inset * inset = createInset(cur.bv().buffer(), cmd);
1317                 if (!inset)
1318                         break;
1319                 // if an empty inset is created (cmd.argument() is empty)
1320                 // use current selection as parameter.
1321                 if (cmd.argument().empty() && cur.selection()) {
1322                         // use selected text as info to avoid a separate UI
1323                         docstring ds = cur.selectionAsString(false);
1324                         cutSelection(cur, true, false);
1325                         static_cast<InsetInfo *>(inset)->setInfo(to_utf8(ds));
1326                         static_cast<InsetInfo *>(inset)->updateInfo();
1327                 }
1328                 insertInset(cur, inset);
1329                 cur.posForward();
1330                 break;
1331         }
1332 #if 0
1333         case LFUN_LIST_INSERT:
1334 #endif
1335         case LFUN_CAPTION_INSERT:
1336         case LFUN_FOOTNOTE_INSERT:
1337         case LFUN_NOTE_INSERT:
1338         case LFUN_FLEX_INSERT:
1339         case LFUN_BOX_INSERT:
1340         case LFUN_BRANCH_INSERT:
1341         case LFUN_BIBITEM_INSERT:
1342         case LFUN_ERT_INSERT:
1343         case LFUN_LISTING_INSERT:
1344         case LFUN_MARGINALNOTE_INSERT:
1345         case LFUN_OPTIONAL_INSERT:
1346         case LFUN_ENVIRONMENT_INSERT:
1347         case LFUN_INDEX_INSERT:
1348                 // Open the inset, and move the current selection
1349                 // inside it.
1350                 doInsertInset(cur, this, cmd, true, true);
1351                 cur.posForward();
1352                 // Some insets are numbered, others are shown in the outline pane so
1353                 // let's update the labels and the toc backend.
1354                 updateLabels(bv->buffer());
1355                 break;
1356
1357         case LFUN_TABULAR_INSERT:
1358                 // if there were no arguments, just open the dialog
1359                 if (doInsertInset(cur, this, cmd, false, true))
1360                         cur.posForward();
1361                 else
1362                         bv->showDialog("tabularcreate");
1363
1364                 break;
1365
1366         case LFUN_FLOAT_INSERT:
1367         case LFUN_FLOAT_WIDE_INSERT:
1368         case LFUN_WRAP_INSERT: {
1369                 bool content = cur.selection();  // will some text be moved into the inset?
1370
1371                 doInsertInset(cur, this, cmd, true, true);
1372                 cur.posForward();
1373                 ParagraphList & pars = cur.text()->paragraphs();
1374
1375                 DocumentClass const & tclass = bv->buffer().params().documentClass();
1376
1377                 // add a separate paragraph for the caption inset
1378                 pars.push_back(Paragraph());
1379                 pars.back().setInsetOwner(pars[0].inInset());
1380                 pars.back().setEmptyOrDefaultLayout(tclass);
1381                 int cap_pit = pars.size() - 1;
1382
1383                 // if an empty inset was created, we create an additional empty
1384                 // paragraph at the bottom so that the user can choose where to put
1385                 // the graphics (or table).
1386                 if (!content) {
1387                         pars.push_back(Paragraph());
1388                         pars.back().setInsetOwner(pars[0].inInset());
1389                         pars.back().setEmptyOrDefaultLayout(tclass);
1390                 }
1391
1392                 // reposition the cursor to the caption
1393                 cur.pit() = cap_pit;
1394                 cur.pos() = 0;
1395                 // FIXME: This Text/Cursor dispatch handling is a mess!
1396                 // We cannot use Cursor::dispatch here it needs access to up to
1397                 // date metrics.
1398                 FuncRequest cmd_caption(LFUN_CAPTION_INSERT);
1399                 cur.text()->dispatch(cur, cmd_caption);
1400                 cur.updateFlags(Update::Force);
1401                 // FIXME: When leaving the Float (or Wrap) inset we should
1402                 // delete any empty paragraph left above or below the
1403                 // caption.
1404                 break;
1405         }
1406
1407         case LFUN_NOMENCL_INSERT: {
1408                 FuncRequest cmd1 = cmd;
1409                 if (cmd.argument().empty())
1410                         cmd1 = FuncRequest(cmd,
1411                                 bv->cursor().innerText()->getStringToIndex(bv->cursor()));
1412                 Inset * inset = createInset(cur.bv().buffer(), cmd1);
1413                 if (!inset)
1414                         break;
1415                 cur.recordUndo();
1416                 cur.clearSelection();
1417                 insertInset(cur, inset);
1418                 // Show the dialog for the nomenclature entry, since the
1419                 // description entry still needs to be filled in.
1420                 if (cmd.action == LFUN_NOMENCL_INSERT)
1421                         inset->edit(cur, true);
1422                 cur.posForward();
1423                 break;
1424         }
1425
1426         case LFUN_INDEX_PRINT:
1427         case LFUN_NOMENCL_PRINT:
1428         case LFUN_TOC_INSERT:
1429         case LFUN_LINE_INSERT:
1430         case LFUN_NEWPAGE_INSERT:
1431                 // do nothing fancy
1432                 doInsertInset(cur, this, cmd, false, false);
1433                 cur.posForward();
1434                 break;
1435
1436         case LFUN_DEPTH_DECREMENT:
1437                 changeDepth(cur, DEC_DEPTH);
1438                 break;
1439
1440         case LFUN_DEPTH_INCREMENT:
1441                 changeDepth(cur, INC_DEPTH);
1442                 break;
1443
1444         case LFUN_MATH_DISPLAY:
1445                 mathDispatch(cur, cmd, true);
1446                 break;
1447
1448         case LFUN_MATH_IMPORT_SELECTION:
1449         case LFUN_MATH_MODE:
1450                 if (cmd.argument() == "on")
1451                         // don't pass "on" as argument
1452                         mathDispatch(cur, FuncRequest(LFUN_MATH_MODE), false);
1453                 else
1454                         mathDispatch(cur, cmd, false);
1455                 break;
1456
1457         case LFUN_MATH_MACRO:
1458                 if (cmd.argument().empty())
1459                         cur.errorMessage(from_utf8(N_("Missing argument")));
1460                 else {
1461                         string s = to_utf8(cmd.argument());
1462                         string const s1 = token(s, ' ', 1);
1463                         int const nargs = s1.empty() ? 0 : convert<int>(s1);
1464                         string const s2 = token(s, ' ', 2);
1465                         MacroType type = MacroTypeNewcommand;
1466                         if (s2 == "def")
1467                                 type = MacroTypeDef;
1468                         cur.insert(new MathMacroTemplate(from_utf8(token(s, ' ', 0)), nargs, false, type));
1469                         //cur.nextInset()->edit(cur, true);
1470                 }
1471                 break;
1472
1473         // passthrough hat and underscore outside mathed:
1474         case LFUN_MATH_SUBSCRIPT:
1475                 mathDispatch(cur, FuncRequest(LFUN_SELF_INSERT, "_"), false);
1476                 break;
1477         case LFUN_MATH_SUPERSCRIPT:
1478                 mathDispatch(cur, FuncRequest(LFUN_SELF_INSERT, "^"), false);
1479                 break;
1480
1481         case LFUN_MATH_INSERT:
1482         case LFUN_MATH_MATRIX:
1483         case LFUN_MATH_DELIM:
1484         case LFUN_MATH_BIGDELIM: {
1485                 cap::replaceSelection(cur);
1486                 cur.insert(new InsetMathHull(hullSimple));
1487                 checkAndActivateInset(cur, true);
1488                 BOOST_ASSERT(cur.inMathed());
1489                 cur.dispatch(cmd);
1490                 break;
1491         }
1492
1493         case LFUN_FONT_EMPH: {
1494                 Font font(ignore_font, ignore_language);
1495                 font.fontInfo().setEmph(FONT_TOGGLE);
1496                 toggleAndShow(cur, this, font);
1497                 break;
1498         }
1499
1500         case LFUN_FONT_BOLD: {
1501                 Font font(ignore_font, ignore_language);
1502                 font.fontInfo().setSeries(BOLD_SERIES);
1503                 toggleAndShow(cur, this, font);
1504                 break;
1505         }
1506
1507         case LFUN_FONT_NOUN: {
1508                 Font font(ignore_font, ignore_language);
1509                 font.fontInfo().setNoun(FONT_TOGGLE);
1510                 toggleAndShow(cur, this, font);
1511                 break;
1512         }
1513
1514         case LFUN_FONT_TYPEWRITER: {
1515                 Font font(ignore_font, ignore_language);
1516                 font.fontInfo().setFamily(TYPEWRITER_FAMILY); // no good
1517                 toggleAndShow(cur, this, font);
1518                 break;
1519         }
1520
1521         case LFUN_FONT_SANS: {
1522                 Font font(ignore_font, ignore_language);
1523                 font.fontInfo().setFamily(SANS_FAMILY);
1524                 toggleAndShow(cur, this, font);
1525                 break;
1526         }
1527
1528         case LFUN_FONT_ROMAN: {
1529                 Font font(ignore_font, ignore_language);
1530                 font.fontInfo().setFamily(ROMAN_FAMILY);
1531                 toggleAndShow(cur, this, font);
1532                 break;
1533         }
1534
1535         case LFUN_FONT_DEFAULT: {
1536                 Font font(inherit_font, ignore_language);
1537                 toggleAndShow(cur, this, font);
1538                 break;
1539         }
1540
1541         case LFUN_FONT_UNDERLINE: {
1542                 Font font(ignore_font, ignore_language);
1543                 font.fontInfo().setUnderbar(FONT_TOGGLE);
1544                 toggleAndShow(cur, this, font);
1545                 break;
1546         }
1547
1548         case LFUN_FONT_SIZE: {
1549                 Font font(ignore_font, ignore_language);
1550                 setLyXSize(to_utf8(cmd.argument()), font.fontInfo());
1551                 toggleAndShow(cur, this, font);
1552                 break;
1553         }
1554
1555         case LFUN_LANGUAGE: {
1556                 Language const * lang = languages.getLanguage(to_utf8(cmd.argument()));
1557                 if (!lang)
1558                         break;
1559                 Font font(ignore_font, lang);
1560                 toggleAndShow(cur, this, font);
1561                 break;
1562         }
1563
1564         case LFUN_FONT_FREE_APPLY:
1565                 toggleAndShow(cur, this, freefont, toggleall);
1566                 cur.message(_("Character set"));
1567                 break;
1568
1569         // Set the freefont using the contents of \param data dispatched from
1570         // the frontends and apply it at the current cursor location.
1571         case LFUN_FONT_FREE_UPDATE: {
1572                 Font font;
1573                 bool toggle;
1574                 if (font.fromString(to_utf8(cmd.argument()), toggle)) {
1575                         freefont = font;
1576                         toggleall = toggle;
1577                         toggleAndShow(cur, this, freefont, toggleall);
1578                         cur.message(_("Character set"));
1579                 } else {
1580                         lyxerr << "Argument not ok";
1581                 }
1582                 break;
1583         }
1584
1585         case LFUN_FINISHED_LEFT:
1586                 LYXERR(Debug::DEBUG, "handle LFUN_FINISHED_LEFT:\n" << cur);
1587                 // We're leaving an inset, going left. If the inset is LTR, we're
1588                 // leaving from the front, so we should not move (remain at --- but
1589                 // not in --- the inset). If the inset is RTL, move left, without
1590                 // entering the inset itself; i.e., move to after the inset.
1591                 if (cur.paragraph().getFontSettings(
1592                                 cur.bv().buffer().params(), cur.pos()).isRightToLeft())
1593                         cursorVisLeft(cur, true);
1594                 break;
1595
1596         case LFUN_FINISHED_RIGHT:
1597                 LYXERR(Debug::DEBUG, "handle LFUN_FINISHED_RIGHT:\n" << cur);
1598                 // We're leaving an inset, going right. If the inset is RTL, we're
1599                 // leaving from the front, so we should not move (remain at --- but
1600                 // not in --- the inset). If the inset is LTR, move right, without
1601                 // entering the inset itself; i.e., move to after the inset.
1602                 if (!cur.paragraph().getFontSettings(
1603                                 cur.bv().buffer().params(), cur.pos()).isRightToLeft())
1604                         cursorVisRight(cur, true);
1605                 break;
1606
1607         case LFUN_FINISHED_BACKWARD:
1608                 LYXERR(Debug::DEBUG, "handle LFUN_FINISHED_BACKWARD:\n" << cur);
1609                 break;
1610
1611         case LFUN_FINISHED_FORWARD:
1612                 LYXERR(Debug::DEBUG, "handle LFUN_FINISHED_FORWARD:\n" << cur);
1613                 ++cur.pos();
1614                 cur.setCurrentFont();
1615                 break;
1616
1617         case LFUN_LAYOUT_PARAGRAPH: {
1618                 string data;
1619                 params2string(cur.paragraph(), data);
1620                 data = "show\n" + data;
1621                 bv->showDialog("paragraph", data);
1622                 break;
1623         }
1624
1625         case LFUN_PARAGRAPH_UPDATE: {
1626                 string data;
1627                 params2string(cur.paragraph(), data);
1628
1629                 // Will the paragraph accept changes from the dialog?
1630                 bool const accept =
1631                         cur.inset().allowParagraphCustomization(cur.idx());
1632
1633                 data = "update " + convert<string>(accept) + '\n' + data;
1634                 bv->updateDialog("paragraph", data);
1635                 break;
1636         }
1637
1638         case LFUN_ACCENT_UMLAUT:
1639         case LFUN_ACCENT_CIRCUMFLEX:
1640         case LFUN_ACCENT_GRAVE:
1641         case LFUN_ACCENT_ACUTE:
1642         case LFUN_ACCENT_TILDE:
1643         case LFUN_ACCENT_CEDILLA:
1644         case LFUN_ACCENT_MACRON:
1645         case LFUN_ACCENT_DOT:
1646         case LFUN_ACCENT_UNDERDOT:
1647         case LFUN_ACCENT_UNDERBAR:
1648         case LFUN_ACCENT_CARON:
1649         case LFUN_ACCENT_SPECIAL_CARON:
1650         case LFUN_ACCENT_BREVE:
1651         case LFUN_ACCENT_TIE:
1652         case LFUN_ACCENT_HUNGARIAN_UMLAUT:
1653         case LFUN_ACCENT_CIRCLE:
1654         case LFUN_ACCENT_OGONEK:
1655                 theLyXFunc().handleKeyFunc(cmd.action);
1656                 if (!cmd.argument().empty())
1657                         // FIXME: Are all these characters encoded in one byte in utf8?
1658                         bv->translateAndInsert(cmd.argument()[0], this, cur);
1659                 break;
1660
1661         case LFUN_FLOAT_LIST: {
1662                 DocumentClass const & tclass = bv->buffer().params().documentClass();
1663                 if (tclass.floats().typeExist(to_utf8(cmd.argument()))) {
1664                         cur.recordUndo();
1665                         if (cur.selection())
1666                                 cutSelection(cur, true, false);
1667                         breakParagraph(cur);
1668
1669                         if (cur.lastpos() != 0) {
1670                                 cursorBackward(cur);
1671                                 breakParagraph(cur);
1672                         }
1673
1674                         //FIXME Check if this should be emptyLayout()
1675                         setLayout(cur, tclass.defaultLayoutName());
1676                         ParagraphParameters p;
1677                         setParagraphs(cur, p);
1678                         insertInset(cur, new InsetFloatList(to_utf8(cmd.argument())));
1679                         cur.posForward();
1680                 } else {
1681                         lyxerr << "Non-existent float type: "
1682                                << to_utf8(cmd.argument()) << endl;
1683                 }
1684                 break;
1685         }
1686
1687         case LFUN_CHANGE_ACCEPT: {
1688                 acceptOrRejectChanges(cur, ACCEPT);
1689                 break;
1690         }
1691
1692         case LFUN_CHANGE_REJECT: {
1693                 acceptOrRejectChanges(cur, REJECT);
1694                 break;
1695         }
1696
1697         case LFUN_THESAURUS_ENTRY: {
1698                 docstring arg = cmd.argument();
1699                 if (arg.empty()) {
1700                         arg = cur.selectionAsString(false);
1701                         // FIXME
1702                         if (arg.size() > 100 || arg.empty()) {
1703                                 // Get word or selection
1704                                 selectWordWhenUnderCursor(cur, WHOLE_WORD);
1705                                 arg = cur.selectionAsString(false);
1706                         }
1707                 }
1708                 bv->showDialog("thesaurus", to_utf8(arg));
1709                 break;
1710         }
1711
1712         case LFUN_PARAGRAPH_PARAMS_APPLY: {
1713                 // Given data, an encoding of the ParagraphParameters
1714                 // generated in the Paragraph dialog, this function sets
1715                 // the current paragraph, or currently selected paragraphs,
1716                 // appropriately.
1717                 // NOTE: This function overrides all existing settings.
1718                 setParagraphs(cur, cmd.argument());
1719                 cur.message(_("Paragraph layout set"));
1720                 break;
1721         }
1722
1723         case LFUN_PARAGRAPH_PARAMS: {
1724                 // Given data, an encoding of the ParagraphParameters as we'd
1725                 // find them in a LyX file, this function modifies the current paragraph,
1726                 // or currently selected paragraphs.
1727                 // NOTE: This function only modifies, and does not override, existing
1728                 // settings.
1729                 setParagraphs(cur, cmd.argument(), true);
1730                 cur.message(_("Paragraph layout set"));
1731                 break;
1732         }
1733
1734         case LFUN_ESCAPE:
1735                 if (cur.selection()) {
1736                         cur.selection() = false;
1737                 } else {
1738                         cur.undispatched();
1739                         // This used to be LFUN_FINISHED_RIGHT, I think FORWARD is more
1740                         // correct, but I'm not 100% sure -- dov, 071019
1741                         cmd = FuncRequest(LFUN_FINISHED_FORWARD);
1742                 }
1743                 break;
1744
1745         case LFUN_OUTLINE_UP:
1746                 outline(OutlineUp, cur);
1747                 setCursor(cur, cur.pit(), 0);
1748                 updateLabels(cur.buffer());
1749                 needsUpdate = true;
1750                 break;
1751
1752         case LFUN_OUTLINE_DOWN:
1753                 outline(OutlineDown, cur);
1754                 setCursor(cur, cur.pit(), 0);
1755                 updateLabels(cur.buffer());
1756                 needsUpdate = true;
1757                 break;
1758
1759         case LFUN_OUTLINE_IN:
1760                 outline(OutlineIn, cur);
1761                 updateLabels(cur.buffer());
1762                 needsUpdate = true;
1763                 break;
1764
1765         case LFUN_OUTLINE_OUT:
1766                 outline(OutlineOut, cur);
1767                 updateLabels(cur.buffer());
1768                 needsUpdate = true;
1769                 break;
1770
1771         default:
1772                 LYXERR(Debug::ACTION, "Command " << cmd << " not DISPATCHED by Text");
1773                 cur.undispatched();
1774                 break;
1775         }
1776
1777         needsUpdate |= (cur.pos() != cur.lastpos()) && cur.selection();
1778
1779         // FIXME: The cursor flag is reset two lines below
1780         // so we need to check here if some of the LFUN did touch that.
1781         // for now only Text::erase() and Text::backspace() do that.
1782         // The plan is to verify all the LFUNs and then to remove this
1783         // singleParUpdate boolean altogether.
1784         if (cur.result().update() & Update::Force) {
1785                 singleParUpdate = false;
1786                 needsUpdate = true;
1787         }
1788
1789         // FIXME: the following code should go in favor of fine grained
1790         // update flag treatment.
1791         if (singleParUpdate) {
1792                 // Inserting characters does not change par height in general. So, try
1793                 // to update _only_ this paragraph. BufferView will detect if a full
1794                 // metrics update is needed anyway.
1795                 cur.updateFlags(Update::SinglePar | Update::FitCursor);
1796                 return;
1797         }
1798
1799         if (!needsUpdate
1800             && &oldTopSlice.inset() == &cur.inset()
1801             && oldTopSlice.idx() == cur.idx()
1802             && !sel // sel is a backup of cur.selection() at the biginning of the function.
1803             && !cur.selection())
1804                 // FIXME: it would be better if we could just do this
1805                 //
1806                 //if (cur.result().update() != Update::FitCursor)
1807                 //      cur.noUpdate();
1808                 //
1809                 // But some LFUNs do not set Update::FitCursor when needed, so we
1810                 // do it for all. This is not very harmfull as FitCursor will provoke
1811                 // a full redraw only if needed but still, a proper review of all LFUN
1812                 // should be done and this needsUpdate boolean can then be removed.
1813                 cur.updateFlags(Update::FitCursor);
1814         else
1815                 cur.updateFlags(Update::Force | Update::FitCursor);
1816 }
1817
1818
1819 bool Text::getStatus(Cursor & cur, FuncRequest const & cmd,
1820                         FuncStatus & flag) const
1821 {
1822         BOOST_ASSERT(cur.text() == this);
1823
1824         Font const & font = cur.real_current_font;
1825         FontInfo const & fontinfo = font.fontInfo();
1826         bool enable = true;
1827         InsetCode code = NO_CODE;
1828
1829         switch (cmd.action) {
1830
1831         case LFUN_DEPTH_DECREMENT:
1832                 enable = changeDepthAllowed(cur, DEC_DEPTH);
1833                 break;
1834
1835         case LFUN_DEPTH_INCREMENT:
1836                 enable = changeDepthAllowed(cur, INC_DEPTH);
1837                 break;
1838
1839         case LFUN_APPENDIX:
1840                 flag.setOnOff(cur.paragraph().params().startOfAppendix());
1841                 return true;
1842
1843         case LFUN_BIBITEM_INSERT:
1844                 enable = (cur.paragraph().layout().labeltype == LABEL_BIBLIO
1845                           && cur.pos() == 0);
1846                 break;
1847
1848         case LFUN_DIALOG_SHOW_NEW_INSET:
1849                 if (cmd.argument() == "bibitem")
1850                         code = BIBITEM_CODE;
1851                 else if (cmd.argument() == "bibtex")
1852                         code = BIBTEX_CODE;
1853                 else if (cmd.argument() == "box")
1854                         code = BOX_CODE;
1855                 else if (cmd.argument() == "branch")
1856                         code = BRANCH_CODE;
1857                 else if (cmd.argument() == "citation")
1858                         code = CITE_CODE;
1859                 else if (cmd.argument() == "ert")
1860                         code = ERT_CODE;
1861                 else if (cmd.argument() == "external")
1862                         code = EXTERNAL_CODE;
1863                 else if (cmd.argument() == "float")
1864                         code = FLOAT_CODE;
1865                 else if (cmd.argument() == "graphics")
1866                         code = GRAPHICS_CODE;
1867                 else if (cmd.argument() == "href")
1868                         code = HYPERLINK_CODE;
1869                 else if (cmd.argument() == "include")
1870                         code = INCLUDE_CODE;
1871                 else if (cmd.argument() == "index")
1872                         code = INDEX_CODE;
1873                 else if (cmd.argument() == "nomenclature")
1874                         code = NOMENCL_CODE;
1875                 else if (cmd.argument() == "label")
1876                         code = LABEL_CODE;
1877                 else if (cmd.argument() == "note")
1878                         code = NOTE_CODE;
1879                 else if (cmd.argument() == "ref")
1880                         code = REF_CODE;
1881                 else if (cmd.argument() == "space")
1882                         code = SPACE_CODE;
1883                 else if (cmd.argument() == "toc")
1884                         code = TOC_CODE;
1885                 else if (cmd.argument() == "vspace")
1886                         code = VSPACE_CODE;
1887                 else if (cmd.argument() == "wrap")
1888                         code = WRAP_CODE;
1889                 else if (cmd.argument() == "listings")
1890                         code = LISTINGS_CODE;
1891                 break;
1892
1893         case LFUN_ERT_INSERT:
1894                 code = ERT_CODE;
1895                 break;
1896         case LFUN_LISTING_INSERT:
1897                 code = LISTINGS_CODE;
1898                 break;
1899         case LFUN_FOOTNOTE_INSERT:
1900                 code = FOOT_CODE;
1901                 break;
1902         case LFUN_TABULAR_INSERT:
1903                 code = TABULAR_CODE;
1904                 break;
1905         case LFUN_MARGINALNOTE_INSERT:
1906                 code = MARGIN_CODE;
1907                 break;
1908         case LFUN_FLOAT_INSERT:
1909         case LFUN_FLOAT_WIDE_INSERT:
1910                 code = FLOAT_CODE;
1911                 break;
1912         case LFUN_WRAP_INSERT:
1913                 code = WRAP_CODE;
1914                 break;
1915         case LFUN_FLOAT_LIST:
1916                 code = FLOAT_LIST_CODE;
1917                 break;
1918 #if 0
1919         case LFUN_LIST_INSERT:
1920                 code = LIST_CODE;
1921                 break;
1922 #endif
1923         case LFUN_CAPTION_INSERT:
1924                 code = CAPTION_CODE;
1925                 break;
1926         case LFUN_NOTE_INSERT:
1927                 code = NOTE_CODE;
1928                 // in commands (sections etc., only Notes are allowed)
1929                 enable = (cmd.argument().empty() || cmd.getArg(0) == "Note" ||
1930                           !cur.paragraph().layout().isCommand());
1931                 break;
1932         case LFUN_FLEX_INSERT: {
1933                 code = FLEX_CODE;
1934                 string s = cmd.getArg(0);
1935                 InsetLayout il =
1936                         cur.buffer().params().documentClass().insetLayout(from_utf8(s));
1937                 if (il.lyxtype() != "charstyle" &&
1938                     il.lyxtype() != "custom" &&
1939                     il.lyxtype() != "element" &&
1940                     il.lyxtype ()!= "standard")
1941                         enable = false;
1942                 break;
1943                 }
1944         case LFUN_BOX_INSERT:
1945                 code = BOX_CODE;
1946                 break;
1947         case LFUN_BRANCH_INSERT:
1948                 code = BRANCH_CODE;
1949                 if (cur.buffer().masterBuffer()->params().branchlist().empty())
1950                         enable = false;
1951                 break;
1952         case LFUN_LABEL_INSERT:
1953                 code = LABEL_CODE;
1954                 break;
1955         case LFUN_INFO_INSERT:
1956                 code = INFO_CODE;
1957                 break;
1958         case LFUN_OPTIONAL_INSERT:
1959                 code = OPTARG_CODE;
1960                 enable = cur.paragraph().insetList().count(OPTARG_CODE)
1961                         < cur.paragraph().layout().optionalargs;
1962                 break;
1963         case LFUN_ENVIRONMENT_INSERT:
1964                 code = BOX_CODE;
1965                 break;
1966         case LFUN_INDEX_INSERT:
1967                 code = INDEX_CODE;
1968                 break;
1969         case LFUN_INDEX_PRINT:
1970                 code = INDEX_PRINT_CODE;
1971                 break;
1972         case LFUN_NOMENCL_INSERT:
1973                 code = NOMENCL_CODE;
1974                 break;
1975         case LFUN_NOMENCL_PRINT:
1976                 code = NOMENCL_PRINT_CODE;
1977                 break;
1978         case LFUN_TOC_INSERT:
1979                 code = TOC_CODE;
1980                 break;
1981         case LFUN_HYPERLINK_INSERT:
1982                 code = HYPERLINK_CODE;
1983                 break;
1984         case LFUN_QUOTE_INSERT:
1985                 // always allow this, since we will inset a raw quote
1986                 // if an inset is not allowed.
1987                 break;
1988         case LFUN_SPECIALCHAR_INSERT:
1989                 code = SPECIALCHAR_CODE;
1990                 break;
1991         case LFUN_SPACE_INSERT:
1992                 // slight hack: we know this is allowed in math mode
1993                 if (cur.inTexted())
1994                         code = SPACE_CODE;
1995                 break;
1996
1997         case LFUN_INSET_MODIFY:
1998                 // We need to disable this, because we may get called for a
1999                 // tabular cell via
2000                 // InsetTabular::getStatus() -> InsetText::getStatus()
2001                 // and we don't handle LFUN_INSET_MODIFY.
2002                 enable = false;
2003                 break;
2004
2005         case LFUN_FONT_EMPH:
2006                 flag.setOnOff(fontinfo.emph() == FONT_ON);
2007                 return true;
2008
2009         case LFUN_FONT_NOUN:
2010                 flag.setOnOff(fontinfo.noun() == FONT_ON);
2011                 return true;
2012
2013         case LFUN_FONT_BOLD:
2014                 flag.setOnOff(fontinfo.series() == BOLD_SERIES);
2015                 return true;
2016
2017         case LFUN_FONT_SANS:
2018                 flag.setOnOff(fontinfo.family() == SANS_FAMILY);
2019                 return true;
2020
2021         case LFUN_FONT_ROMAN:
2022                 flag.setOnOff(fontinfo.family() == ROMAN_FAMILY);
2023                 return true;
2024
2025         case LFUN_FONT_TYPEWRITER:
2026                 flag.setOnOff(fontinfo.family() == TYPEWRITER_FAMILY);
2027                 return true;
2028
2029         case LFUN_CUT:
2030         case LFUN_COPY:
2031                 enable = cur.selection();
2032                 break;
2033
2034         case LFUN_PASTE: {
2035                 if (cmd.argument().empty()) {
2036                         if (theClipboard().isInternal())
2037                                 enable = cap::numberOfSelections() > 0;
2038                         else
2039                                 enable = !theClipboard().empty();
2040                         break;
2041                 }
2042
2043                 // we have an argument
2044                 string const arg = to_utf8(cmd.argument());
2045                 if (isStrUnsignedInt(arg)) {
2046                         // it's a number and therefore means the internal stack
2047                         unsigned int n = convert<unsigned int>(arg);
2048                         enable = cap::numberOfSelections() > n;
2049                         break;
2050                 }
2051
2052                 // explicit graphics type?
2053                 if ((arg == "pdf" && theClipboard().hasGraphicsContents(Clipboard::PdfGraphicsType))
2054                     || (arg == "png" && theClipboard().hasGraphicsContents(Clipboard::PngGraphicsType))
2055                     || (arg == "jpeg" && theClipboard().hasGraphicsContents(Clipboard::JpegGraphicsType))
2056                     || (arg == "linkback" && theClipboard().hasGraphicsContents(Clipboard::LinkBackGraphicsType))) {
2057                         enable = true;
2058                         break;
2059                 }
2060
2061                 // unknown argument
2062                 enable = false;
2063                 break;
2064          }
2065
2066         case LFUN_CLIPBOARD_PASTE:
2067                 enable = !theClipboard().empty();
2068                 break;
2069
2070         case LFUN_PRIMARY_SELECTION_PASTE:
2071                 enable = cur.selection() || !theSelection().empty();
2072                 break;
2073
2074         case LFUN_PARAGRAPH_MOVE_UP:
2075                 enable = cur.pit() > 0 && !cur.selection();
2076                 break;
2077
2078         case LFUN_PARAGRAPH_MOVE_DOWN:
2079                 enable = cur.pit() < cur.lastpit() && !cur.selection();
2080                 break;
2081
2082         case LFUN_INSET_DISSOLVE:
2083                 if (!cmd.argument().empty()) {
2084                         InsetLayout il = cur.inset().getLayout(cur.buffer().params());
2085                         enable = cur.inset().lyxCode() == FLEX_CODE
2086                                  && il.lyxtype() == to_utf8(cmd.argument());
2087                 } else {
2088                         enable = !isMainText(cur.bv().buffer())
2089                                  && cur.inset().nargs() == 1;
2090                 }
2091                 break;
2092
2093         case LFUN_CHANGE_ACCEPT:
2094         case LFUN_CHANGE_REJECT:
2095                 // TODO: context-sensitive enabling of LFUN_CHANGE_ACCEPT/REJECT
2096                 // In principle, these LFUNs should only be enabled if there
2097                 // is a change at the current position/in the current selection.
2098                 // However, without proper optimizations, this will inevitably
2099                 // result in unacceptable performance - just imagine a user who
2100                 // wants to select the complete content of a long document.
2101                 enable = true;
2102                 break;
2103
2104         case LFUN_OUTLINE_UP:
2105         case LFUN_OUTLINE_DOWN:
2106         case LFUN_OUTLINE_IN:
2107         case LFUN_OUTLINE_OUT:
2108                 enable = (cur.paragraph().layout().toclevel != Layout::NOT_IN_TOC);
2109                 break;
2110
2111         case LFUN_NEWLINE_INSERT:
2112                 // LaTeX restrictions (labels or empty par)
2113                 enable = (cur.pos() > cur.paragraph().beginOfBody());
2114                 break;
2115
2116         case LFUN_WORD_DELETE_FORWARD:
2117         case LFUN_WORD_DELETE_BACKWARD:
2118         case LFUN_LINE_DELETE:
2119         case LFUN_WORD_FORWARD:
2120         case LFUN_WORD_BACKWARD:
2121         case LFUN_WORD_RIGHT:
2122         case LFUN_WORD_LEFT:
2123         case LFUN_CHAR_FORWARD:
2124         case LFUN_CHAR_FORWARD_SELECT:
2125         case LFUN_CHAR_BACKWARD:
2126         case LFUN_CHAR_BACKWARD_SELECT:
2127         case LFUN_CHAR_LEFT:
2128         case LFUN_CHAR_LEFT_SELECT:
2129         case LFUN_CHAR_RIGHT:
2130         case LFUN_CHAR_RIGHT_SELECT:
2131         case LFUN_UP:
2132         case LFUN_UP_SELECT:
2133         case LFUN_DOWN:
2134         case LFUN_DOWN_SELECT:
2135         case LFUN_PARAGRAPH_UP_SELECT:
2136         case LFUN_PARAGRAPH_DOWN_SELECT:
2137         case LFUN_LINE_BEGIN_SELECT:
2138         case LFUN_LINE_END_SELECT:
2139         case LFUN_WORD_FORWARD_SELECT:
2140         case LFUN_WORD_BACKWARD_SELECT:
2141         case LFUN_WORD_RIGHT_SELECT:
2142         case LFUN_WORD_LEFT_SELECT:
2143         case LFUN_WORD_SELECT:
2144         case LFUN_PARAGRAPH_UP:
2145         case LFUN_PARAGRAPH_DOWN:
2146         case LFUN_LINE_BEGIN:
2147         case LFUN_LINE_END:
2148         case LFUN_CHAR_DELETE_FORWARD:
2149         case LFUN_DELETE_FORWARD_SKIP:
2150         case LFUN_CHAR_DELETE_BACKWARD:
2151         case LFUN_DELETE_BACKWARD_SKIP:
2152         case LFUN_BREAK_PARAGRAPH:
2153         case LFUN_BREAK_PARAGRAPH_SKIP:
2154         case LFUN_PARAGRAPH_SPACING:
2155         case LFUN_INSET_INSERT:
2156         case LFUN_WORD_UPCASE:
2157         case LFUN_WORD_LOWCASE:
2158         case LFUN_WORD_CAPITALIZE:
2159         case LFUN_CHARS_TRANSPOSE:
2160         case LFUN_SERVER_GET_XY:
2161         case LFUN_SERVER_SET_XY:
2162         case LFUN_SERVER_GET_FONT:
2163         case LFUN_SERVER_GET_LAYOUT:
2164         case LFUN_LAYOUT:
2165         case LFUN_DATE_INSERT:
2166         case LFUN_SELF_INSERT:
2167         case LFUN_LINE_INSERT:
2168         case LFUN_NEWPAGE_INSERT:
2169         case LFUN_MATH_DISPLAY:
2170         case LFUN_MATH_IMPORT_SELECTION:
2171         case LFUN_MATH_MODE:
2172         case LFUN_MATH_MACRO:
2173         case LFUN_MATH_MATRIX:
2174         case LFUN_MATH_DELIM:
2175         case LFUN_MATH_BIGDELIM:
2176         case LFUN_MATH_INSERT:
2177         case LFUN_MATH_SUBSCRIPT:
2178         case LFUN_MATH_SUPERSCRIPT:
2179         case LFUN_FONT_DEFAULT:
2180         case LFUN_FONT_UNDERLINE:
2181         case LFUN_FONT_SIZE:
2182         case LFUN_LANGUAGE:
2183         case LFUN_FONT_FREE_APPLY:
2184         case LFUN_FONT_FREE_UPDATE:
2185         case LFUN_LAYOUT_PARAGRAPH:
2186         case LFUN_PARAGRAPH_UPDATE:
2187         case LFUN_ACCENT_UMLAUT:
2188         case LFUN_ACCENT_CIRCUMFLEX:
2189         case LFUN_ACCENT_GRAVE:
2190         case LFUN_ACCENT_ACUTE:
2191         case LFUN_ACCENT_TILDE:
2192         case LFUN_ACCENT_CEDILLA:
2193         case LFUN_ACCENT_MACRON:
2194         case LFUN_ACCENT_DOT:
2195         case LFUN_ACCENT_UNDERDOT:
2196         case LFUN_ACCENT_UNDERBAR:
2197         case LFUN_ACCENT_CARON:
2198         case LFUN_ACCENT_SPECIAL_CARON:
2199         case LFUN_ACCENT_BREVE:
2200         case LFUN_ACCENT_TIE:
2201         case LFUN_ACCENT_HUNGARIAN_UMLAUT:
2202         case LFUN_ACCENT_CIRCLE:
2203         case LFUN_ACCENT_OGONEK:
2204         case LFUN_THESAURUS_ENTRY:
2205         case LFUN_PARAGRAPH_PARAMS_APPLY:
2206         case LFUN_PARAGRAPH_PARAMS:
2207         case LFUN_ESCAPE:
2208         case LFUN_BUFFER_END:
2209         case LFUN_BUFFER_BEGIN:
2210         case LFUN_BUFFER_BEGIN_SELECT:
2211         case LFUN_BUFFER_END_SELECT:
2212         case LFUN_UNICODE_INSERT:
2213                 // these are handled in our dispatch()
2214                 enable = true;
2215                 break;
2216
2217         default:
2218                 return false;
2219         }
2220
2221         if (code != NO_CODE
2222             && (cur.empty() || !cur.inset().insetAllowed(code)))
2223                 enable = false;
2224
2225         flag.enabled(enable);
2226         return true;
2227 }
2228
2229
2230 void Text::pasteString(Cursor & cur, docstring const & clip,
2231                 bool asParagraphs)
2232 {
2233         cur.clearSelection();
2234         if (!clip.empty()) {
2235                 cur.recordUndo();
2236                 if (asParagraphs)
2237                         insertStringAsParagraphs(cur, clip);
2238                 else
2239                         insertStringAsLines(cur, clip);
2240         }
2241 }
2242
2243 } // namespace lyx