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 "BranchList.h"
  21 #include "FloatList.h"
  22 #include "FuncStatus.h"
  23 #include "Buffer.h"
  24 #include "buffer_funcs.h"
  25 #include "BufferParams.h"
  26 #include "BufferView.h"
  27 #include "bufferview_funcs.h"
  28 #include "Cursor.h"
  29 #include "CoordCache.h"
  30 #include "CutAndPaste.h"
  31 #include "debug.h"
  32 #include "DispatchResult.h"
  33 #include "ErrorList.h"
  34 #include "factory.h"
  35 #include "FuncRequest.h"
  36 #include "gettext.h"
  37 #include "Intl.h"
  38 #include "Language.h"
  39 #include "LyXAction.h"
  40 #include "LyXFunc.h"
  41 #include "Lexer.h"
  42 #include "LyXRC.h"
  43 #include "Row.h"
  44 #include "Paragraph.h"
  45 #include "paragraph_funcs.h"
  46 #include "ParagraphParameters.h"
  47 #include "Undo.h"
  48 #include "VSpace.h"
  49 #include "ParIterator.h"
  50
  51 #include "frontends/Clipboard.h"
  52 #include "frontends/Selection.h"
  53
  54 #include "insets/InsetCommand.h"
  55 #include "insets/InsetFloatList.h"
  56 #include "insets/InsetNewline.h"
  57 #include "insets/InsetQuotes.h"
  58 #include "insets/InsetSpecialChar.h"
  59 #include "insets/InsetText.h"
  60
  61 #include "support/lstrings.h"
  62 #include "support/lyxlib.h"
  63 #include "support/convert.h"
  64 #include "support/lyxtime.h"
  65
  66 #include "mathed/InsetMathHull.h"
  67 #include "mathed/MathMacroTemplate.h"
  68
  69 #include <boost/current_function.hpp>
  70
  71 #include <clocale>
  72 #include <sstream>
  73
  74
  75 namespace lyx {
  76
  77 using cap::copySelection;
  78 using cap::cutSelection;
  79 using cap::pasteFromStack;
  80 using cap::pasteClipboard;
  81 using cap::replaceSelection;
  82
  83 using support::isStrUnsignedInt;
  84 using support::token;
  85
  86 using std::endl;
  87 using std::string;
  88 using std::istringstream;
  89 using std::ostringstream;
  90
  91
  92 extern docstring current_layout;
  93
  94
  95 namespace {
  96
  97         // globals...
  98         Font freefont(Font::ALL_IGNORE);
  99         bool toggleall = false;
 100
 101         void toggleAndShow(Cursor & cur, Text * text,
 102                 Font const & font, bool toggleall = true)
 103         {
 104                 text->toggleFree(cur, font, toggleall);
 105
 106                 if (font.language() != ignore_language ||
 107                                 font.number() != Font::IGNORE) {
 108                         Paragraph & par = cur.paragraph();
 109                         if (cur.boundary() != text->isRTLBoundary(cur.buffer(), par,
 110                                                 cur.pos(), text->real_current_font))
 111                                 text->setCursor(cur, cur.pit(), cur.pos(),
 112                                                 false, !cur.boundary());
 113                 }
 114         }
 115
 116
 117         void moveCursor(Cursor & cur, bool selecting)
 118         {
 119                 if (selecting || cur.mark())
 120                         cur.setSelection();
 121         }
 122
 123
 124         void finishChange(Cursor & cur, bool selecting)
 125         {
 126                 finishUndo();
 127                 moveCursor(cur, selecting);
 128         }
 129
 130
 131         void mathDispatch(Cursor & cur, FuncRequest const & cmd, bool display)
 132         {
 133                 recordUndo(cur);
 134                 docstring sel = cur.selectionAsString(false);
 135
 136                 // It may happen that sel is empty but there is a selection
 137                 replaceSelection(cur);
 138
 139                 if (sel.empty()) {
 140 #ifdef ENABLE_ASSERTIONS
 141                         const int old_pos = cur.pos();
 142 #endif
 143                         cur.insert(new InsetMathHull(hullSimple));
 144                         BOOST_ASSERT(old_pos == cur.pos());
 145                         cur.nextInset()->edit(cur, true);
 146                         // don't do that also for LFUN_MATH_MODE
 147                         // unless you want end up with always changing
 148                         // to mathrm when opening an inlined inset --
 149                         // I really hate "LyXfunc overloading"...
 150                         if (display)
 151                                 cur.dispatch(FuncRequest(LFUN_MATH_DISPLAY));
 152                         // Avoid an unnecessary undo step if cmd.argument
 153                         // is empty
 154                         if (!cmd.argument().empty())
 155                                 cur.dispatch(FuncRequest(LFUN_MATH_INSERT,
 156                                                          cmd.argument()));
 157                 } else {
 158                         // create a macro if we see "\\newcommand"
 159                         // somewhere, and an ordinary formula
 160                         // otherwise
 161                         if (sel.find(from_ascii("\\newcommand")) == string::npos
 162                             && sel.find(from_ascii("\\def")) == string::npos)
 163                         {
 164                                 InsetMathHull * formula = new InsetMathHull;
 165                                 istringstream is(to_utf8(sel));
 166                                 Lexer lex(0, 0);
 167                                 lex.setStream(is);
 168                                 formula->read(cur.buffer(), lex);
 169                                 if (formula->getType() == hullNone)
 170                                         // Don't create pseudo formulas if
 171                                         // delimiters are left out
 172                                         formula->mutate(hullSimple);
 173                                 cur.insert(formula);
 174                         } else {
 175                                 cur.insert(new MathMacroTemplate(sel));
 176                         }
 177                 }
 178                 cur.message(from_utf8(N_("Math editor mode")));
 179         }
 180
 181 } // namespace anon
 182
 183
 184
 185 namespace bv_funcs {
 186
 187 string const freefont2string()
 188 {
 189         string data;
 190         if (font2string(freefont, toggleall, data))
 191                 return data;
 192         return string();
 193 }
 194
 195 }
 196
 197 void Text::cursorPrevious(Cursor & cur)
 198 {
 199         pos_type cpos = cur.pos();
 200         pit_type cpar = cur.pit();
 201
 202         int x = cur.x_target();
 203         setCursorFromCoordinates(cur, x, 0);
 204         cur.dispatch(FuncRequest(cur.selection()? LFUN_UP_SELECT: LFUN_UP));
 205
 206         if (cpar == cur.pit() && cpos == cur.pos())
 207                 // we have a row which is taller than the workarea. The
 208                 // simplest solution is to move to the previous row instead.
 209                 cur.dispatch(FuncRequest(cur.selection()? LFUN_UP_SELECT: LFUN_UP));
 210
 211         finishUndo();
 212         cur.updateFlags(Update::Force | Update::FitCursor);
 213 }
 214
 215
 216 void Text::cursorNext(Cursor & cur)
 217 {
 218         pos_type cpos = cur.pos();
 219         pit_type cpar = cur.pit();
 220
 221         int x = cur.x_target();
 222         setCursorFromCoordinates(cur, x, cur.bv().workHeight() - 1);
 223         cur.dispatch(FuncRequest(cur.selection()? LFUN_DOWN_SELECT: LFUN_DOWN));
 224
 225         if (cpar == cur.pit() && cpos == cur.pos())
 226                 // we have a row which is taller than the workarea. The
 227                 // simplest solution is to move to the next row instead.
 228                 cur.dispatch(
 229                         FuncRequest(cur.selection()? LFUN_DOWN_SELECT: LFUN_DOWN));
 230
 231         finishUndo();
 232         cur.updateFlags(Update::Force | Update::FitCursor);
 233 }
 234
 235
 236 namespace {
 237
 238 void specialChar(Cursor & cur, InsetSpecialChar::Kind kind)
 239 {
 240         recordUndo(cur);
 241         cap::replaceSelection(cur);
 242         cur.insert(new InsetSpecialChar(kind));
 243         cur.posRight();
 244 }
 245
 246
 247 bool doInsertInset(Cursor & cur, Text * text,
 248         FuncRequest const & cmd, bool edit, bool pastesel)
 249 {
 250         Inset * inset = createInset(&cur.bv(), cmd);
 251         if (!inset)
 252                 return false;
 253
 254         recordUndo(cur);
 255         bool gotsel = false;
 256         if (cur.selection()) {
 257                 lyx::dispatch(FuncRequest(LFUN_CUT));
 258                 gotsel = true;
 259         }
 260         text->insertInset(cur, inset);
 261
 262         if (edit)
 263                 inset->edit(cur, true);
 264
 265         if (gotsel && pastesel) {
 266                 lyx::dispatch(FuncRequest(LFUN_PASTE, "0"));
 267                 // reset first par to default
 268                 if (cur.lastpit() != 0 || cur.lastpos() != 0) {
 269                         Layout_ptr const layout =
 270                                 cur.buffer().params().getTextClass().defaultLayout();
 271                         cur.text()->paragraphs().begin()->layout(layout);
 272                 }
 273         }
 274         return true;
 275 }
 276
 277
 278 } // anon namespace
 279
 280
 281 void Text::number(Cursor & cur)
 282 {
 283         Font font(Font::ALL_IGNORE);
 284         font.setNumber(Font::TOGGLE);
 285         toggleAndShow(cur, this, font);
 286 }
 287
 288
 289 bool Text::isRTL(Buffer const & buffer, Paragraph const & par) const
 290 {
 291         return par.isRightToLeftPar(buffer.params());
 292 }
 293
 294
 295 bool Text::isRTL(Buffer const & buffer, CursorSlice const & sl, bool boundary) const
 296 {
 297         if (!lyxrc.rtl_support && !sl.text())
 298                 return false;
 299
 300         int correction = 0;
 301         if (boundary && sl.pos() > 0)
 302                 correction = -1;
 303
 304         Paragraph const & par = getPar(sl.pit());
 305         return getFont(buffer, par, sl.pos() + correction).isVisibleRightToLeft();
 306 }
 307
 308
 309 bool Text::isRTLBoundary(Buffer const & buffer, Paragraph const & par,
 310                          pos_type pos) const
 311 {
 312         if (!lyxrc.rtl_support)
 313                 return false;
 314
 315         // no RTL boundary at line start
 316         if (pos == 0)
 317                 return false;
 318
 319         bool left = getFont(buffer, par, pos - 1).isVisibleRightToLeft();
 320         bool right;
 321         if (pos == par.size())
 322                 right = par.isRightToLeftPar(buffer.params());
 323         else
 324                 right = getFont(buffer, par, pos).isVisibleRightToLeft();
 325         return left != right;
 326 }
 327
 328
 329 bool Text::isRTLBoundary(Buffer const & buffer, Paragraph const & par,
 330                          pos_type pos, Font const & font) const
 331 {
 332         if (!lyxrc.rtl_support)
 333                 return false;
 334
 335         bool left = font.isVisibleRightToLeft();
 336         bool right;
 337         if (pos == par.size())
 338                 right = par.isRightToLeftPar(buffer.params());
 339         else
 340                 right = getFont(buffer, par, pos).isVisibleRightToLeft();
 341         return left != right;
 342 }
 343
 344
 345 void Text::dispatch(Cursor & cur, FuncRequest & cmd)
 346 {
 347         LYXERR(Debug::ACTION) << "Text::dispatch: cmd: " << cmd << endl;
 348
 349         // FIXME: We use the update flag to indicates wether a singlePar or a
 350         // full screen update is needed. We reset it here but shall we restore it
 351         // at the end?
 352         cur.noUpdate();
 353
 354         BOOST_ASSERT(cur.text() == this);
 355         BufferView * bv = &cur.bv();
 356         CursorSlice oldTopSlice = cur.top();
 357         bool oldBoundary = cur.boundary();
 358         bool sel = cur.selection();
 359         // Signals that, even if needsUpdate == false, an update of the
 360         // cursor paragraph is required
 361         bool singleParUpdate = lyxaction.funcHasFlag(cmd.action,
 362                 LyXAction::SingleParUpdate);
 363         // Signals that a full-screen update is required
 364         bool needsUpdate = !(lyxaction.funcHasFlag(cmd.action,
 365                 LyXAction::NoUpdate) || singleParUpdate);
 366         // Remember the old paragraph metric (_outer_ paragraph!)
 367         ParagraphMetrics const & pm = cur.bv().parMetrics(
 368                 cur.bottom().text(), cur.bottom().pit());
 369         Dimension olddim = pm.dim();
 370
 371         switch (cmd.action) {
 372
 373         case LFUN_PARAGRAPH_MOVE_DOWN: {
 374                 pit_type const pit = cur.pit();
 375                 recUndo(cur, pit, pit + 1);
 376                 finishUndo();
 377                 std::swap(pars_[pit], pars_[pit + 1]);
 378                 updateLabels(cur.buffer());
 379                 needsUpdate = true;
 380                 ++cur.pit();
 381                 break;
 382         }
 383
 384         case LFUN_PARAGRAPH_MOVE_UP: {
 385                 pit_type const pit = cur.pit();
 386                 recUndo(cur, pit - 1, pit);
 387                 finishUndo();
 388                 std::swap(pars_[pit], pars_[pit - 1]);
 389                 updateLabels(cur.buffer());
 390                 --cur.pit();
 391                 needsUpdate = true;
 392                 break;
 393         }
 394
 395         case LFUN_APPENDIX: {
 396                 Paragraph & par = cur.paragraph();
 397                 bool start = !par.params().startOfAppendix();
 398
 399 #ifdef WITH_WARNINGS
 400 #warning The code below only makes sense at top level.
 401 // Should LFUN_APPENDIX be restricted to top-level paragraphs?
 402 #endif
 403                 // ensure that we have only one start_of_appendix in this document
 404                 // FIXME: this don't work for multipart document!
 405                 for (pit_type tmp = 0, end = pars_.size(); tmp != end; ++tmp) {
 406                         if (pars_[tmp].params().startOfAppendix()) {
 407                                 recUndo(cur, tmp);
 408                                 pars_[tmp].params().startOfAppendix(false);
 409                                 break;
 410                         }
 411                 }
 412
 413                 recordUndo(cur);
 414                 par.params().startOfAppendix(start);
 415
 416                 // we can set the refreshing parameters now
 417                 updateLabels(cur.buffer());
 418                 break;
 419         }
 420
 421         case LFUN_WORD_DELETE_FORWARD:
 422                 if (cur.selection()) {
 423                         cutSelection(cur, true, false);
 424                 } else
 425                         deleteWordForward(cur);
 426                 finishChange(cur, false);
 427                 break;
 428
 429         case LFUN_WORD_DELETE_BACKWARD:
 430                 if (cur.selection()) {
 431                         cutSelection(cur, true, false);
 432                 } else
 433                         deleteWordBackward(cur);
 434                 finishChange(cur, false);
 435                 break;
 436
 437         case LFUN_LINE_DELETE:
 438                 if (cur.selection()) {
 439                         cutSelection(cur, true, false);
 440                 } else
 441                         deleteLineForward(cur);
 442                 finishChange(cur, false);
 443                 break;
 444
 445         case LFUN_BUFFER_BEGIN:
 446         case LFUN_BUFFER_BEGIN_SELECT:
 447                 needsUpdate |= cur.selHandle(cmd.action == LFUN_BUFFER_BEGIN_SELECT);
 448                 if (cur.depth() == 1) {
 449                         needsUpdate |= cursorTop(cur);
 450                 } else {
 451                         cur.undispatched();
 452                 }
 453                 break;
 454
 455         case LFUN_BUFFER_END:
 456         case LFUN_BUFFER_END_SELECT:
 457                 needsUpdate |= cur.selHandle(cmd.action == LFUN_BUFFER_END_SELECT);
 458                 if (cur.depth() == 1) {
 459                         needsUpdate |= cursorBottom(cur);
 460                 } else {
 461                         cur.undispatched();
 462                 }
 463                 break;
 464
 465         case LFUN_CHAR_FORWARD:
 466         case LFUN_CHAR_FORWARD_SELECT:
 467                 //lyxerr << BOOST_CURRENT_FUNCTION
 468                 //       << " LFUN_CHAR_FORWARD[SEL]:\n" << cur << endl;
 469                 needsUpdate |= cur.selHandle(cmd.action == LFUN_CHAR_FORWARD_SELECT);
 470                 if (reverseDirectionNeeded(cur))
 471                         needsUpdate |= cursorLeft(cur);
 472                 else
 473                         needsUpdate |= cursorRight(cur);
 474
 475                 if (!needsUpdate && oldTopSlice == cur.top()
 476                                 && cur.boundary() == oldBoundary) {
 477                         cur.undispatched();
 478                         cmd = FuncRequest(LFUN_FINISHED_RIGHT);
 479                 }
 480                 break;
 481
 482         case LFUN_CHAR_BACKWARD:
 483         case LFUN_CHAR_BACKWARD_SELECT:
 484                 //lyxerr << "handle LFUN_CHAR_BACKWARD[_SELECT]:\n" << cur << endl;
 485                 needsUpdate |= cur.selHandle(cmd.action == LFUN_CHAR_BACKWARD_SELECT);
 486                 if (reverseDirectionNeeded(cur))
 487                         needsUpdate |= cursorRight(cur);
 488                 else
 489                         needsUpdate |= cursorLeft(cur);
 490
 491                 if (!needsUpdate && oldTopSlice == cur.top()
 492                         && cur.boundary() == oldBoundary) {
 493                         cur.undispatched();
 494                         cmd = FuncRequest(LFUN_FINISHED_LEFT);
 495                 }
 496                 break;
 497
 498         case LFUN_UP_SELECT:
 499         case LFUN_DOWN_SELECT:
 500         case LFUN_UP:
 501         case LFUN_DOWN: {
 502                 // stop/start the selection
 503                 bool select = cmd.action == LFUN_DOWN_SELECT ||
 504                         cmd.action == LFUN_UP_SELECT;
 505                 cur.selHandle(select);
 506
 507                 // move cursor up/down
 508                 bool up = cmd.action == LFUN_UP_SELECT || cmd.action == LFUN_UP;
 509                 bool const successful = cur.upDownInText(up, needsUpdate);
 510                 if (successful) {
 511                         // notify insets which were left and get their update flags
 512                         notifyCursorLeaves(cur.beforeDispatchCursor(), cur);
 513                         cur.fixIfBroken();
 514
 515                         // redraw if you leave mathed (for the decorations)
 516                         needsUpdate |= cur.beforeDispatchCursor().inMathed();
 517                 } else
 518                         cur.undispatched();
 519
 520                 break;
 521         }
 522
 523         case LFUN_PARAGRAPH_UP:
 524         case LFUN_PARAGRAPH_UP_SELECT:
 525                 needsUpdate |= cur.selHandle(cmd.action == LFUN_PARAGRAPH_UP_SELECT);
 526                 needsUpdate |= cursorUpParagraph(cur);
 527                 break;
 528
 529         case LFUN_PARAGRAPH_DOWN:
 530         case LFUN_PARAGRAPH_DOWN_SELECT:
 531                 needsUpdate |= cur.selHandle(cmd.action == LFUN_PARAGRAPH_DOWN_SELECT);
 532                 needsUpdate |= cursorDownParagraph(cur);
 533                 break;
 534
 535         case LFUN_SCREEN_UP:
 536         case LFUN_SCREEN_UP_SELECT:
 537                 needsUpdate |= cur.selHandle(cmd.action == LFUN_SCREEN_UP_SELECT);
 538                 if (cur.pit() == 0 && cur.textRow().pos() == 0)
 539                         cur.undispatched();
 540                 else {
 541                         cursorPrevious(cur);
 542                 }
 543                 break;
 544
 545         case LFUN_SCREEN_DOWN:
 546         case LFUN_SCREEN_DOWN_SELECT:
 547                 needsUpdate |= cur.selHandle(cmd.action == LFUN_SCREEN_DOWN_SELECT);
 548                 if (cur.pit() == cur.lastpit()
 549                           && cur.textRow().endpos() == cur.lastpos())
 550                         cur.undispatched();
 551                 else {
 552                         cursorNext(cur);
 553                 }
 554                 break;
 555
 556         case LFUN_LINE_BEGIN:
 557         case LFUN_LINE_BEGIN_SELECT:
 558                 needsUpdate |= cur.selHandle(cmd.action == LFUN_LINE_BEGIN_SELECT);
 559                 needsUpdate |= cursorHome(cur);
 560                 break;
 561
 562         case LFUN_LINE_END:
 563         case LFUN_LINE_END_SELECT:
 564                 needsUpdate |= cur.selHandle(cmd.action == LFUN_LINE_END_SELECT);
 565                 needsUpdate |= cursorEnd(cur);
 566                 break;
 567
 568         case LFUN_WORD_FORWARD:
 569         case LFUN_WORD_FORWARD_SELECT:
 570                 needsUpdate |= cur.selHandle(cmd.action == LFUN_WORD_FORWARD_SELECT);
 571                 if (reverseDirectionNeeded(cur))
 572                         needsUpdate |= cursorLeftOneWord(cur);
 573                 else
 574                         needsUpdate |= cursorRightOneWord(cur);
 575                 break;
 576
 577         case LFUN_WORD_BACKWARD:
 578         case LFUN_WORD_BACKWARD_SELECT:
 579                 needsUpdate |= cur.selHandle(cmd.action == LFUN_WORD_BACKWARD_SELECT);
 580                 if (reverseDirectionNeeded(cur))
 581                         needsUpdate |= cursorRightOneWord(cur);
 582                 else
 583                         needsUpdate |= cursorLeftOneWord(cur);
 584                 break;
 585
 586         case LFUN_WORD_SELECT: {
 587                 selectWord(cur, WHOLE_WORD);
 588                 finishChange(cur, true);
 589                 break;
 590         }
 591
 592         case LFUN_BREAK_LINE: {
 593                 // Not allowed by LaTeX (labels or empty par)
 594                 if (cur.pos() > cur.paragraph().beginOfBody()) {
 595                         // this avoids a double undo
 596                         // FIXME: should not be needed, ideally
 597                         if (!cur.selection())
 598                                 recordUndo(cur);
 599                         cap::replaceSelection(cur);
 600                         cur.insert(new InsetNewline);
 601                         cur.posRight();
 602                         moveCursor(cur, false);
 603                 }
 604                 break;
 605         }
 606
 607         case LFUN_CHAR_DELETE_FORWARD:
 608                 if (!cur.selection()) {
 609                         if (cur.pos() == cur.paragraph().size())
 610                                 // Par boundary, force full-screen update
 611                                 singleParUpdate = false;
 612                         needsUpdate |= erase(cur);
 613                         cur.resetAnchor();
 614                         // It is possible to make it a lot faster still
 615                         // just comment out the line below...
 616                 } else {
 617                         cutSelection(cur, true, false);
 618                         singleParUpdate = false;
 619                 }
 620                 moveCursor(cur, false);
 621                 break;
 622
 623         case LFUN_DELETE_FORWARD_SKIP:
 624                 // Reverse the effect of LFUN_BREAK_PARAGRAPH_SKIP.
 625                 if (!cur.selection()) {
 626                         if (cur.pos() == cur.lastpos()) {
 627                                 cursorRight(cur);
 628                                 cursorLeft(cur);
 629                         }
 630                         erase(cur);
 631                         cur.resetAnchor();
 632                 } else {
 633                         cutSelection(cur, true, false);
 634                 }
 635                 break;
 636
 637
 638         case LFUN_CHAR_DELETE_BACKWARD:
 639                 if (!cur.selection()) {
 640                         if (bv->getIntl().getTransManager().backspace()) {
 641                                 // Par boundary, full-screen update
 642                                 if (cur.pos() == 0)
 643                                         singleParUpdate = false;
 644                                 needsUpdate |= backspace(cur);
 645                                 cur.resetAnchor();
 646                                 // It is possible to make it a lot faster still
 647                                 // just comment out the line below...
 648                         }
 649                 } else {
 650                         cutSelection(cur, true, false);
 651                         singleParUpdate = false;
 652                 }
 653                 break;
 654
 655         case LFUN_DELETE_BACKWARD_SKIP:
 656                 // Reverse the effect of LFUN_BREAK_PARAGRAPH_SKIP.
 657                 if (!cur.selection()) {
 658 #ifdef WITH_WARNINGS
 659 #warning look here
 660 #endif
 661                         //CursorSlice cur = cursor();
 662                         backspace(cur);
 663                         //anchor() = cur;
 664                 } else {
 665                         cutSelection(cur, true, false);
 666                 }
 667                 break;
 668
 669         case LFUN_BREAK_PARAGRAPH:
 670                 cap::replaceSelection(cur);
 671                 breakParagraph(cur, 0);
 672                 cur.resetAnchor();
 673                 break;
 674
 675         case LFUN_BREAK_PARAGRAPH_KEEP_LAYOUT:
 676                 cap::replaceSelection(cur);
 677                 breakParagraph(cur, 1);
 678                 cur.resetAnchor();
 679                 break;
 680
 681         case LFUN_BREAK_PARAGRAPH_SKIP: {
 682                 // When at the beginning of a paragraph, remove
 683                 // indentation.  Otherwise, do the same as LFUN_BREAK_PARAGRAPH.
 684                 cap::replaceSelection(cur);
 685                 if (cur.pos() == 0)
 686                         cur.paragraph().params().labelWidthString(docstring());
 687                 else
 688                         breakParagraph(cur, 0);
 689                 cur.resetAnchor();
 690                 break;
 691         }
 692
 693         case LFUN_PARAGRAPH_SPACING: {
 694                 Paragraph & par = cur.paragraph();
 695                 Spacing::Space cur_spacing = par.params().spacing().getSpace();
 696                 string cur_value = "1.0";
 697                 if (cur_spacing == Spacing::Other)
 698                         cur_value = par.params().spacing().getValueAsString();
 699
 700                 istringstream is(to_utf8(cmd.argument()));
 701                 string tmp;
 702                 is >> tmp;
 703                 Spacing::Space new_spacing = cur_spacing;
 704                 string new_value = cur_value;
 705                 if (tmp.empty()) {
 706                         lyxerr << "Missing argument to `paragraph-spacing'"
 707                                << endl;
 708                 } else if (tmp == "single") {
 709                         new_spacing = Spacing::Single;
 710                 } else if (tmp == "onehalf") {
 711                         new_spacing = Spacing::Onehalf;
 712                 } else if (tmp == "double") {
 713                         new_spacing = Spacing::Double;
 714                 } else if (tmp == "other") {
 715                         new_spacing = Spacing::Other;
 716                         string tmpval = "0.0";
 717                         is >> tmpval;
 718                         lyxerr << "new_value = " << tmpval << endl;
 719                         if (tmpval != "0.0")
 720                                 new_value = tmpval;
 721                 } else if (tmp == "default") {
 722                         new_spacing = Spacing::Default;
 723                 } else {
 724                         lyxerr << to_utf8(_("Unknown spacing argument: "))
 725                                << to_utf8(cmd.argument()) << endl;
 726                 }
 727                 if (cur_spacing != new_spacing || cur_value != new_value)
 728                         par.params().spacing(Spacing(new_spacing, new_value));
 729                 break;
 730         }
 731
 732         case LFUN_INSET_INSERT: {
 733                 recordUndo(cur);
 734                 Inset * inset = createInset(bv, cmd);
 735                 if (inset) {
 736                         // FIXME (Abdel 01/02/2006):
 737                         // What follows would be a partial fix for bug 2154:
 738                         //   http://bugzilla.lyx.org/show_bug.cgi?id=2154
 739                         // This automatically put the label inset _after_ a
 740                         // numbered section. It should be possible to extend the mechanism
 741                         // to any kind of LateX environement.
 742                         // The correct way to fix that bug would be at LateX generation.
 743                         // I'll let the code here for reference as it could be used for some
 744                         // other feature like "automatic labelling".
 745                         /*
 746                         Paragraph & par = pars_[cur.pit()];
 747                         if (inset->lyxCode() == Inset::LABEL_CODE
 748                                 && par.layout()->labeltype == LABEL_COUNTER) {
 749                                 // Go to the end of the paragraph
 750                                 // Warning: Because of Change-Tracking, the last
 751                                 // position is 'size()' and not 'size()-1':
 752                                 cur.pos() = par.size();
 753                                 // Insert a new paragraph
 754                                 FuncRequest fr(LFUN_BREAK_PARAGRAPH);
 755                                 dispatch(cur, fr);
 756                         }
 757                         */
 758                         insertInset(cur, inset);
 759                         cur.posRight();
 760                 }
 761                 break;
 762         }
 763
 764         case LFUN_INSET_DISSOLVE:
 765                 needsUpdate |= dissolveInset(cur);
 766                 break;
 767
 768         case LFUN_INSET_SETTINGS:
 769                 cur.inset().showInsetDialog(bv);
 770                 break;
 771
 772         case LFUN_SPACE_INSERT:
 773                 if (cur.paragraph().layout()->free_spacing)
 774                         insertChar(cur, ' ');
 775                 else {
 776                         doInsertInset(cur, this, cmd, false, false);
 777                         cur.posRight();
 778                 }
 779                 moveCursor(cur, false);
 780                 break;
 781
 782         case LFUN_HYPHENATION_POINT_INSERT:
 783                 specialChar(cur, InsetSpecialChar::HYPHENATION);
 784                 break;
 785
 786         case LFUN_LIGATURE_BREAK_INSERT:
 787                 specialChar(cur, InsetSpecialChar::LIGATURE_BREAK);
 788                 break;
 789
 790         case LFUN_DOTS_INSERT:
 791                 specialChar(cur, InsetSpecialChar::LDOTS);
 792                 break;
 793
 794         case LFUN_END_OF_SENTENCE_PERIOD_INSERT:
 795                 specialChar(cur, InsetSpecialChar::END_OF_SENTENCE);
 796                 break;
 797
 798         case LFUN_MENU_SEPARATOR_INSERT:
 799                 specialChar(cur, InsetSpecialChar::MENU_SEPARATOR);
 800                 break;
 801
 802         case LFUN_WORD_UPCASE:
 803                 changeCase(cur, Text::text_uppercase);
 804                 break;
 805
 806         case LFUN_WORD_LOWCASE:
 807                 changeCase(cur, Text::text_lowercase);
 808                 break;
 809
 810         case LFUN_WORD_CAPITALIZE:
 811                 changeCase(cur, Text::text_capitalization);
 812                 break;
 813
 814         case LFUN_CHARS_TRANSPOSE:
 815                 charsTranspose(cur);
 816                 break;
 817
 818         case LFUN_PASTE:
 819                 cur.message(_("Paste"));
 820                 cap::replaceSelection(cur);
 821                 if (cmd.argument().empty() && !theClipboard().isInternal())
 822                         pasteClipboard(cur, bv->buffer()->errorList("Paste"));
 823                 else {
 824                         string const arg(to_utf8(cmd.argument()));
 825                         pasteFromStack(cur, bv->buffer()->errorList("Paste"),
 826                                         isStrUnsignedInt(arg) ?
 827                                                 convert<unsigned int>(arg) :
 828                                                 0);
 829                 }
 830                 bv->buffer()->errors("Paste");
 831                 cur.clearSelection(); // bug 393
 832                 finishUndo();
 833                 break;
 834
 835         case LFUN_CUT:
 836                 cutSelection(cur, true, true);
 837                 cur.message(_("Cut"));
 838                 break;
 839
 840         case LFUN_COPY:
 841                 copySelection(cur);
 842                 cur.message(_("Copy"));
 843                 break;
 844
 845         case LFUN_SERVER_GET_XY:
 846                 cur.message(from_utf8(
 847                         convert<string>(cursorX(cur.bv(), cur.top(), cur.boundary()))
 848                         + ' ' + convert<string>(cursorY(cur.bv(), cur.top(), cur.boundary()))));
 849                 break;
 850
 851         case LFUN_SERVER_SET_XY: {
 852                 int x = 0;
 853                 int y = 0;
 854                 istringstream is(to_utf8(cmd.argument()));
 855                 is >> x >> y;
 856                 if (!is)
 857                         lyxerr << "SETXY: Could not parse coordinates in '"
 858                                << to_utf8(cmd.argument()) << std::endl;
 859                 else
 860                         setCursorFromCoordinates(cur, x, y);
 861                 break;
 862         }
 863
 864         case LFUN_SERVER_GET_FONT:
 865                 if (current_font.shape() == Font::ITALIC_SHAPE)
 866                         cur.message(from_ascii("E"));
 867                 else if (current_font.shape() == Font::SMALLCAPS_SHAPE)
 868                         cur.message(from_ascii("N"));
 869                 else
 870                         cur.message(from_ascii("0"));
 871                 break;
 872
 873         case LFUN_SERVER_GET_LAYOUT:
 874                 cur.message(cur.paragraph().layout()->name());
 875                 break;
 876
 877         case LFUN_LAYOUT: {
 878                 docstring layout = cmd.argument();
 879                 LYXERR(Debug::INFO) << "LFUN_LAYOUT: (arg) " << to_utf8(layout) << endl;
 880
 881                 // Derive layout number from given argument (string)
 882                 // and current buffer's textclass (number)
 883                 TextClass const & tclass = bv->buffer()->params().getTextClass();
 884                 if (layout.empty())
 885                         layout = tclass.defaultLayoutName();
 886                 bool hasLayout = tclass.hasLayout(layout);
 887
 888                 // If the entry is obsolete, use the new one instead.
 889                 if (hasLayout) {
 890                         docstring const & obs = tclass[layout]->obsoleted_by();
 891                         if (!obs.empty())
 892                                 layout = obs;
 893                 }
 894
 895                 if (!hasLayout) {
 896                         cur.errorMessage(from_utf8(N_("Layout ")) + cmd.argument() +
 897                                 from_utf8(N_(" not known")));
 898                         break;
 899                 }
 900
 901                 bool change_layout = (current_layout != layout);
 902
 903                 if (!change_layout && cur.selection() &&
 904                         cur.selBegin().pit() != cur.selEnd().pit())
 905                 {
 906                         pit_type spit = cur.selBegin().pit();
 907                         pit_type epit = cur.selEnd().pit() + 1;
 908                         while (spit != epit) {
 909                                 if (pars_[spit].layout()->name() != current_layout) {
 910                                         change_layout = true;
 911                                         break;
 912                                 }
 913                                 ++spit;
 914                         }
 915                 }
 916
 917                 if (change_layout) {
 918                         setLayout(cur, layout);
 919                         // inform the GUI that the layout has changed.
 920                         bv->layoutChanged(layout);
 921                 }
 922                 break;
 923         }
 924
 925         case LFUN_CLIPBOARD_PASTE:
 926                 cur.clearSelection();
 927                 pasteClipboard(cur, bv->buffer()->errorList("Paste"),
 928                                cmd.argument() == "paragraph");
 929                 bv->buffer()->errors("Paste");
 930                 break;
 931
 932         case LFUN_PRIMARY_SELECTION_PASTE:
 933                 pasteString(cur, theSelection().get(),
 934                             cmd.argument() == "paragraph");
 935                 break;
 936
 937         case LFUN_UNICODE_INSERT: {
 938                 if (cmd.argument().empty())
 939                         break;
 940                 docstring hexstring = cmd.argument();
 941                 if (lyx::support::isHex(hexstring)) {
 942                         char_type c = lyx::support::hexToInt(hexstring);
 943                         if (c >= 32 && c < 0x10ffff) {
 944                                 lyxerr << "Inserting c: " << c << endl;
 945                                 docstring s = docstring(1, c);
 946                                 lyx::dispatch(FuncRequest(LFUN_SELF_INSERT, s));
 947                         }
 948                 }
 949                 break;
 950         }
 951
 952         case LFUN_QUOTE_INSERT: {
 953                 Paragraph & par = cur.paragraph();
 954                 pos_type pos = cur.pos();
 955                 BufferParams const & bufparams = bv->buffer()->params();
 956                 Layout_ptr const & style = par.layout();
 957                 if (!style->pass_thru
 958                     && par.getFontSettings(bufparams, pos).language()->lang() != "hebrew") {
 959                         // this avoids a double undo
 960                         // FIXME: should not be needed, ideally
 961                         if (!cur.selection())
 962                                 recordUndo(cur);
 963                         cap::replaceSelection(cur);
 964                         pos = cur.pos();
 965                         char_type c;
 966                         if (pos == 0)
 967                                 c = ' ';
 968                         else if (cur.prevInset() && cur.prevInset()->isSpace())
 969                                 c = ' ';
 970                         else
 971                                 c = par.getChar(pos - 1);
 972                         string arg = to_utf8(cmd.argument());
 973                         if (arg == "single")
 974                                 cur.insert(new InsetQuotes(c,
 975                                     bufparams.quotes_language,
 976                                     InsetQuotes::SingleQ));
 977                         else
 978                                 cur.insert(new InsetQuotes(c,
 979                                     bufparams.quotes_language,
 980                                     InsetQuotes::DoubleQ));
 981                         cur.posRight();
 982                 }
 983                 else
 984                         lyx::dispatch(FuncRequest(LFUN_SELF_INSERT, "\""));
 985                 break;
 986         }
 987
 988         case LFUN_DATE_INSERT:
 989                 if (cmd.argument().empty())
 990                         lyx::dispatch(FuncRequest(LFUN_SELF_INSERT,
 991                                 formatted_time(current_time())));
 992                 else
 993                         lyx::dispatch(FuncRequest(LFUN_SELF_INSERT,
 994                                 formatted_time(current_time(), to_utf8(cmd.argument()))));
 995                 break;
 996
 997         case LFUN_MOUSE_TRIPLE:
 998                 if (cmd.button() == mouse_button::button1) {
 999                         cursorHome(cur);
1000                         cur.resetAnchor();
1001                         cursorEnd(cur);
1002                         cur.setSelection();
1003                         bv->cursor() = cur;
1004                 }
1005                 break;
1006
1007         case LFUN_MOUSE_DOUBLE:
1008                 if (cmd.button() == mouse_button::button1) {
1009                         selectWord(cur, WHOLE_WORD_STRICT);
1010                         bv->cursor() = cur;
1011                 }
1012                 break;
1013
1014         // Single-click on work area
1015         case LFUN_MOUSE_PRESS: {
1016                 // Right click on a footnote flag opens float menu
1017                 if (cmd.button() == mouse_button::button3)
1018                         cur.clearSelection();
1019
1020                 // Middle button press pastes if we have a selection
1021                 // We do this here as if the selection was inside an inset
1022                 // it could get cleared on the unlocking of the inset so
1023                 // we have to check this first
1024                 bool paste_internally = false;
1025                 if (cmd.button() == mouse_button::button2 && cap::selection()) {
1026                         // Copy the selection buffer to the clipboard
1027                         // stack, because we want it to appear in the
1028                         // "Edit->Paste recent" menu.
1029                         cap::copySelectionToStack();
1030                         paste_internally = true;
1031                 }
1032
1033                 // Insert primary selection with middle mouse
1034                 // if there is a local selection in the current buffer,
1035                 // insert this
1036                 if (cmd.button() == mouse_button::button2) {
1037                         if (paste_internally) {
1038                                 cap::pasteSelection(cur, bv->buffer()->errorList("Paste"));
1039                                 bv->buffer()->errors("Paste");
1040                                 cur.clearSelection(); // bug 393
1041                                 bv->buffer()->markDirty();
1042                                 finishUndo();
1043                         } else {
1044                                 bv->mouseSetCursor(cur);
1045                                 lyx::dispatch(FuncRequest(LFUN_PRIMARY_SELECTION_PASTE, "paragraph"));
1046                         }
1047                 }
1048
1049                 // we have to update after dePM triggered
1050                 bool update = bv->mouseSetCursor(cur);
1051
1052                 if (!update && cmd.button() == mouse_button::button1) {
1053                         needsUpdate = false;
1054                         cur.noUpdate();
1055                 }
1056
1057                 break;
1058         }
1059
1060         case LFUN_MOUSE_MOTION: {
1061                 // Only use motion with button 1
1062                 //if (cmd.button() != mouse_button::button1)
1063                 //      return false;
1064
1065                 // ignore motions deeper nested than the real anchor
1066                 Cursor & bvcur = cur.bv().cursor();
1067                 if (bvcur.anchor_.hasPart(cur)) {
1068                         CursorSlice old = bvcur.top();
1069
1070                         int const wh = bv->workHeight();
1071                         int const y = std::max(0, std::min(wh - 1, cmd.y));
1072
1073                         setCursorFromCoordinates(cur, cmd.x, y);
1074                         cur.setTargetX(cmd.x);
1075                         if (cmd.y >= wh)
1076                                 lyx::dispatch(FuncRequest(LFUN_DOWN_SELECT));
1077                         else if (cmd.y < 0)
1078                                 lyx::dispatch(FuncRequest(LFUN_UP_SELECT));
1079                         // This is to allow jumping over large insets
1080                         if (cur.top() == old) {
1081                                 if (cmd.y >= wh)
1082                                         lyx::dispatch(FuncRequest(LFUN_DOWN_SELECT));
1083                                 else if (cmd.y < 0)
1084                                         lyx::dispatch(FuncRequest(LFUN_UP_SELECT));
1085                         }
1086
1087                         if (cur.top() == old)
1088                                 cur.noUpdate();
1089                         else {
1090                                 // don't set anchor_
1091                                 bvcur.setCursor(cur);
1092                                 bvcur.selection() = true;
1093                                 //lyxerr << "MOTION: " << bv->cursor() << endl;
1094                         }
1095
1096                 } else
1097                         cur.undispatched();
1098                 break;
1099         }
1100
1101         case LFUN_MOUSE_RELEASE: {
1102                 if (cmd.button() == mouse_button::button2)
1103                         break;
1104
1105                 if (cmd.button() == mouse_button::button1) {
1106                         // if there is new selection, update persistent
1107                         // selection, otherwise, single click does not
1108                         // clear persistent selection buffer
1109                         if (cur.selection()) {
1110                                 // finish selection
1111                                 // if double click, cur is moved to the end of word by selectWord
1112                                 // but bvcur is current mouse position
1113                                 Cursor & bvcur = cur.bv().cursor();
1114                                 bvcur.selection() = true;
1115                         }
1116                         needsUpdate = false;
1117                         cur.noUpdate();
1118                 }
1119
1120                 break;
1121         }
1122
1123         case LFUN_SELF_INSERT: {
1124                 if (cmd.argument().empty())
1125                         break;
1126
1127                 // Automatically delete the currently selected
1128                 // text and replace it with what is being
1129                 // typed in now. Depends on lyxrc settings
1130                 // "auto_region_delete", which defaults to
1131                 // true (on).
1132
1133                 if (lyxrc.auto_region_delete && cur.selection()) {
1134                         cutSelection(cur, false, false);
1135                         // When change tracking is set to off, the metrics update
1136                         // mechanism correctly detects if a full update is needed or not.
1137                         // This detection fails when a selection spans multiple rows and
1138                         // change tracking is enabled because the paragraph metrics stays
1139                         // the same. In this case, we force the full update:
1140                         // (see http://bugzilla.lyx.org/show_bug.cgi?id=3992)
1141                         if (cur.buffer().params().trackChanges)
1142                                 cur.updateFlags(Update::Force);
1143                 }
1144
1145                 cur.clearSelection();
1146                 Font const old_font = real_current_font;
1147
1148                 docstring::const_iterator cit = cmd.argument().begin();
1149                 docstring::const_iterator end = cmd.argument().end();
1150                 for (; cit != end; ++cit)
1151                         bv->translateAndInsert(*cit, this, cur);
1152
1153                 cur.resetAnchor();
1154                 moveCursor(cur, false);
1155                 break;
1156         }
1157
1158         case LFUN_URL_INSERT: {
1159                 InsetCommandParams p("url");
1160                 string const data = InsetCommandMailer::params2string("url", p);
1161                 bv->showInsetDialog("url", data, 0);
1162                 break;
1163         }
1164
1165         case LFUN_HTML_INSERT: {
1166                 InsetCommandParams p("htmlurl");
1167                 string const data = InsetCommandMailer::params2string("url", p);
1168                 bv->showInsetDialog("url", data, 0);
1169                 break;
1170         }
1171
1172         case LFUN_LABEL_INSERT: {
1173                 InsetCommandParams p("label");
1174                 // Try to generate a valid label
1175                 p["name"] = (cmd.argument().empty()) ?
1176                         cur.getPossibleLabel() :
1177                         cmd.argument();
1178                 string const data = InsetCommandMailer::params2string("label", p);
1179
1180                 if (cmd.argument().empty()) {
1181                         bv->showInsetDialog("label", data, 0);
1182                 } else {
1183                         FuncRequest fr(LFUN_INSET_INSERT, data);
1184                         dispatch(cur, fr);
1185                 }
1186                 break;
1187         }
1188
1189
1190 #if 0
1191         case LFUN_LIST_INSERT:
1192         case LFUN_THEOREM_INSERT:
1193 #endif
1194         case LFUN_CAPTION_INSERT:
1195                 // Open the inset, and move the current selection
1196                 // inside it.
1197                 doInsertInset(cur, this, cmd, true, true);
1198                 cur.posRight();
1199                 updateLabels(*bv->buffer());
1200                 break;
1201         case LFUN_NOTE_INSERT:
1202         case LFUN_CHARSTYLE_INSERT:
1203         case LFUN_BOX_INSERT:
1204         case LFUN_BRANCH_INSERT:
1205         case LFUN_BIBITEM_INSERT:
1206         case LFUN_ERT_INSERT:
1207         case LFUN_LISTING_INSERT:
1208         case LFUN_FOOTNOTE_INSERT:
1209         case LFUN_MARGINALNOTE_INSERT:
1210         case LFUN_OPTIONAL_INSERT:
1211         case LFUN_ENVIRONMENT_INSERT:
1212                 // Open the inset, and move the current selection
1213                 // inside it.
1214                 doInsertInset(cur, this, cmd, true, true);
1215                 cur.posRight();
1216                 break;
1217
1218         case LFUN_TABULAR_INSERT:
1219                 // if there were no arguments, just open the dialog
1220                 if (doInsertInset(cur, this, cmd, false, true))
1221                         cur.posRight();
1222                 else
1223                         bv->showDialog("tabularcreate");
1224
1225                 break;
1226
1227         case LFUN_FLOAT_INSERT:
1228         case LFUN_FLOAT_WIDE_INSERT:
1229         case LFUN_WRAP_INSERT: {
1230                 bool content = cur.selection();  // will some text be moved into the inset?
1231
1232                 doInsertInset(cur, this, cmd, true, true);
1233                 cur.posRight();
1234                 ParagraphList & pars = cur.text()->paragraphs();
1235
1236                 TextClass const & tclass = bv->buffer()->params().getTextClass();
1237
1238                 // add a separate paragraph for the caption inset
1239                 pars.push_back(Paragraph());
1240                 pars.back().setInsetOwner(pars[0].inInset());
1241                 pars.back().layout(tclass.defaultLayout());
1242
1243                 int cap_pit = pars.size() - 1;
1244
1245                 // if an empty inset was created, we create an additional empty
1246                 // paragraph at the bottom so that the user can choose where to put
1247                 // the graphics (or table).
1248                 if (!content) {
1249                         pars.push_back(Paragraph());
1250                         pars.back().setInsetOwner(pars[0].inInset());
1251                         pars.back().layout(tclass.defaultLayout());
1252
1253                 }
1254
1255                 // reposition the cursor to the caption
1256                 cur.pit() = cap_pit;
1257                 cur.pos() = 0;
1258                 cur.dispatch(FuncRequest(LFUN_CAPTION_INSERT));
1259                 // FIXME: When leaving the Float (or Wrap) inset we should
1260                 // delete any empty paragraph left above or below the
1261                 // caption.
1262                 break;
1263         }
1264
1265         case LFUN_INDEX_INSERT:
1266         case LFUN_NOMENCL_INSERT: {
1267                 Inset * inset = createInset(&cur.bv(), cmd);
1268                 if (!inset)
1269                         break;
1270                 recordUndo(cur);
1271                 cur.clearSelection();
1272                 insertInset(cur, inset);
1273                 inset->edit(cur, true);
1274                 // Show the dialog for the nomenclature entry, since the
1275                 // description entry still needs to be filled in.
1276                 if (cmd.action == LFUN_NOMENCL_INSERT)
1277                         InsetCommandMailer("nomenclature",
1278                                 *reinterpret_cast<InsetCommand *>(inset)).showDialog(&cur.bv());
1279                 cur.posRight();
1280                 break;
1281         }
1282
1283         case LFUN_INDEX_PRINT:
1284         case LFUN_NOMENCL_PRINT:
1285         case LFUN_TOC_INSERT:
1286         case LFUN_HFILL_INSERT:
1287         case LFUN_LINE_INSERT:
1288         case LFUN_PAGEBREAK_INSERT:
1289         case LFUN_CLEARPAGE_INSERT:
1290         case LFUN_CLEARDOUBLEPAGE_INSERT:
1291                 // do nothing fancy
1292                 doInsertInset(cur, this, cmd, false, false);
1293                 cur.posRight();
1294                 break;
1295
1296         case LFUN_DEPTH_DECREMENT:
1297                 changeDepth(cur, DEC_DEPTH);
1298                 break;
1299
1300         case LFUN_DEPTH_INCREMENT:
1301                 changeDepth(cur, INC_DEPTH);
1302                 break;
1303
1304         case LFUN_MATH_DISPLAY:
1305                 mathDispatch(cur, cmd, true);
1306                 break;
1307
1308         case LFUN_MATH_IMPORT_SELECTION:
1309         case LFUN_MATH_MODE:
1310                 if (cmd.argument() == "on")
1311                         // don't pass "on" as argument
1312                         mathDispatch(cur, FuncRequest(LFUN_MATH_MODE), false);
1313                 else
1314                         mathDispatch(cur, cmd, false);
1315                 break;
1316
1317         case LFUN_MATH_MACRO:
1318                 if (cmd.argument().empty())
1319                         cur.errorMessage(from_utf8(N_("Missing argument")));
1320                 else {
1321                         string s = to_utf8(cmd.argument());
1322                         string const s1 = token(s, ' ', 1);
1323                         int const nargs = s1.empty() ? 0 : convert<int>(s1);
1324                         string const s2 = token(s, ' ', 2);
1325                         string const type = s2.empty() ? "newcommand" : s2;
1326                         cur.insert(new MathMacroTemplate(from_utf8(token(s, ' ', 0)), nargs, from_utf8(type)));
1327                         //cur.nextInset()->edit(cur, true);
1328                 }
1329                 break;
1330
1331         // passthrough hat and underscore outside mathed:
1332         case LFUN_MATH_SUBSCRIPT:
1333                 mathDispatch(cur, FuncRequest(LFUN_SELF_INSERT, "_"), false);
1334                 break;
1335         case LFUN_MATH_SUPERSCRIPT:
1336                 mathDispatch(cur, FuncRequest(LFUN_SELF_INSERT, "^"), false);
1337                 break;
1338
1339         case LFUN_MATH_INSERT:
1340         case LFUN_MATH_MATRIX:
1341         case LFUN_MATH_DELIM:
1342         case LFUN_MATH_BIGDELIM: {
1343                 cur.insert(new InsetMathHull(hullSimple));
1344                 checkAndActivateInset(cur, true);
1345                 BOOST_ASSERT(cur.inMathed());
1346                 cur.dispatch(cmd);
1347                 break;
1348         }
1349
1350         case LFUN_FONT_EMPH: {
1351                 Font font(Font::ALL_IGNORE);
1352                 font.setEmph(Font::TOGGLE);
1353                 toggleAndShow(cur, this, font);
1354                 break;
1355         }
1356
1357         case LFUN_FONT_BOLD: {
1358                 Font font(Font::ALL_IGNORE);
1359                 font.setSeries(Font::BOLD_SERIES);
1360                 toggleAndShow(cur, this, font);
1361                 break;
1362         }
1363
1364         case LFUN_FONT_NOUN: {
1365                 Font font(Font::ALL_IGNORE);
1366                 font.setNoun(Font::TOGGLE);
1367                 toggleAndShow(cur, this, font);
1368                 break;
1369         }
1370
1371         case LFUN_FONT_CODE: {
1372                 Font font(Font::ALL_IGNORE);
1373                 font.setFamily(Font::TYPEWRITER_FAMILY); // no good
1374                 toggleAndShow(cur, this, font);
1375                 break;
1376         }
1377
1378         case LFUN_FONT_SANS: {
1379                 Font font(Font::ALL_IGNORE);
1380                 font.setFamily(Font::SANS_FAMILY);
1381                 toggleAndShow(cur, this, font);
1382                 break;
1383         }
1384
1385         case LFUN_FONT_ROMAN: {
1386                 Font font(Font::ALL_IGNORE);
1387                 font.setFamily(Font::ROMAN_FAMILY);
1388                 toggleAndShow(cur, this, font);
1389                 break;
1390         }
1391
1392         case LFUN_FONT_DEFAULT: {
1393                 Font font(Font::ALL_INHERIT, ignore_language);
1394                 toggleAndShow(cur, this, font);
1395                 break;
1396         }
1397
1398         case LFUN_FONT_UNDERLINE: {
1399                 Font font(Font::ALL_IGNORE);
1400                 font.setUnderbar(Font::TOGGLE);
1401                 toggleAndShow(cur, this, font);
1402                 break;
1403         }
1404
1405         case LFUN_FONT_SIZE: {
1406                 Font font(Font::ALL_IGNORE);
1407                 font.setLyXSize(to_utf8(cmd.argument()));
1408                 toggleAndShow(cur, this, font);
1409                 break;
1410         }
1411
1412         case LFUN_LANGUAGE: {
1413                 Language const * lang = languages.getLanguage(to_utf8(cmd.argument()));
1414                 if (!lang)
1415                         break;
1416                 Font font(Font::ALL_IGNORE);
1417                 font.setLanguage(lang);
1418                 toggleAndShow(cur, this, font);
1419                 break;
1420         }
1421
1422         case LFUN_FONT_FREE_APPLY:
1423                 toggleAndShow(cur, this, freefont, toggleall);
1424                 cur.message(_("Character set"));
1425                 break;
1426
1427         // Set the freefont using the contents of \param data dispatched from
1428         // the frontends and apply it at the current cursor location.
1429         case LFUN_FONT_FREE_UPDATE: {
1430                 Font font;
1431                 bool toggle;
1432                 if (bv_funcs::string2font(to_utf8(cmd.argument()), font, toggle)) {
1433                         freefont = font;
1434                         toggleall = toggle;
1435                         toggleAndShow(cur, this, freefont, toggleall);
1436                         cur.message(_("Character set"));
1437                 }
1438                 break;
1439         }
1440
1441         case LFUN_FINISHED_LEFT:
1442                 LYXERR(Debug::DEBUG) << "handle LFUN_FINISHED_LEFT:\n" << cur << endl;
1443                 if (reverseDirectionNeeded(cur))
1444                         ++cur.pos();
1445                 break;
1446
1447         case LFUN_FINISHED_RIGHT:
1448                 LYXERR(Debug::DEBUG) << "handle LFUN_FINISHED_RIGHT:\n" << cur << endl;
1449                 if (!reverseDirectionNeeded(cur))
1450                         ++cur.pos();
1451                 break;
1452
1453         case LFUN_LAYOUT_PARAGRAPH: {
1454                 string data;
1455                 params2string(cur.paragraph(), data);
1456                 data = "show\n" + data;
1457                 bv->showDialogWithData("paragraph", data);
1458                 break;
1459         }
1460
1461         case LFUN_PARAGRAPH_UPDATE: {
1462                 string data;
1463                 params2string(cur.paragraph(), data);
1464
1465                 // Will the paragraph accept changes from the dialog?
1466                 bool const accept = !cur.inset().forceDefaultParagraphs(cur.idx());
1467
1468                 data = "update " + convert<string>(accept) + '\n' + data;
1469                 bv->updateDialog("paragraph", data);
1470                 break;
1471         }
1472
1473         case LFUN_ACCENT_UMLAUT:
1474         case LFUN_ACCENT_CIRCUMFLEX:
1475         case LFUN_ACCENT_GRAVE:
1476         case LFUN_ACCENT_ACUTE:
1477         case LFUN_ACCENT_TILDE:
1478         case LFUN_ACCENT_CEDILLA:
1479         case LFUN_ACCENT_MACRON:
1480         case LFUN_ACCENT_DOT:
1481         case LFUN_ACCENT_UNDERDOT:
1482         case LFUN_ACCENT_UNDERBAR:
1483         case LFUN_ACCENT_CARON:
1484         case LFUN_ACCENT_SPECIAL_CARON:
1485         case LFUN_ACCENT_BREVE:
1486         case LFUN_ACCENT_TIE:
1487         case LFUN_ACCENT_HUNGARIAN_UMLAUT:
1488         case LFUN_ACCENT_CIRCLE:
1489         case LFUN_ACCENT_OGONEK:
1490                 theLyXFunc().handleKeyFunc(cmd.action);
1491                 if (!cmd.argument().empty())
1492                         // FIXME: Are all these characters encoded in one byte in utf8?
1493                         bv->translateAndInsert(cmd.argument()[0], this, cur);
1494                 break;
1495
1496         case LFUN_FLOAT_LIST: {
1497                 TextClass const & tclass = bv->buffer()->params().getTextClass();
1498                 if (tclass.floats().typeExist(to_utf8(cmd.argument()))) {
1499                         // not quite sure if we want this...
1500                         recordUndo(cur);
1501                         cur.clearSelection();
1502                         breakParagraph(cur);
1503
1504                         if (cur.lastpos() != 0) {
1505                                 cursorLeft(cur);
1506                                 breakParagraph(cur);
1507                         }
1508
1509                         setLayout(cur, tclass.defaultLayoutName());
1510                         setParagraph(cur, Spacing(), LYX_ALIGN_LAYOUT, docstring(), 0);
1511                         insertInset(cur, new InsetFloatList(to_utf8(cmd.argument())));
1512                         cur.posRight();
1513                 } else {
1514                         lyxerr << "Non-existent float type: "
1515                                << to_utf8(cmd.argument()) << endl;
1516                 }
1517                 break;
1518         }
1519
1520         case LFUN_CHANGE_ACCEPT: {
1521                 acceptOrRejectChanges(cur, ACCEPT);
1522                 break;
1523         }
1524
1525         case LFUN_CHANGE_REJECT: {
1526                 acceptOrRejectChanges(cur, REJECT);
1527                 break;
1528         }
1529
1530         case LFUN_THESAURUS_ENTRY: {
1531                 docstring arg = cmd.argument();
1532                 if (arg.empty()) {
1533                         arg = cur.selectionAsString(false);
1534                         // FIXME
1535                         if (arg.size() > 100 || arg.empty()) {
1536                                 // Get word or selection
1537                                 selectWordWhenUnderCursor(cur, WHOLE_WORD);
1538                                 arg = cur.selectionAsString(false);
1539                         }
1540                 }
1541                 bv->showDialogWithData("thesaurus", to_utf8(arg));
1542                 break;
1543         }
1544
1545         case LFUN_PARAGRAPH_PARAMS_APPLY: {
1546                 // Given data, an encoding of the ParagraphParameters
1547                 // generated in the Paragraph dialog, this function sets
1548                 // the current paragraph appropriately.
1549                 istringstream is(to_utf8(cmd.argument()));
1550                 Lexer lex(0, 0);
1551                 lex.setStream(is);
1552                 ParagraphParameters params;
1553                 params.read(lex);
1554                 setParagraph(cur,
1555                              params.spacing(),
1556                              params.align(),
1557                              params.labelWidthString(),
1558                              params.noindent());
1559                 cur.message(_("Paragraph layout set"));
1560                 break;
1561         }
1562
1563         case LFUN_ESCAPE:
1564                 if (cur.selection()) {
1565                         cur.selection() = false;
1566                 } else {
1567                         cur.undispatched();
1568                         cmd = FuncRequest(LFUN_FINISHED_RIGHT);
1569                 }
1570                 break;
1571
1572         default:
1573                 LYXERR(Debug::ACTION)
1574                         << BOOST_CURRENT_FUNCTION
1575                         << ": Command " << cmd
1576                         << " not DISPATCHED by Text" << endl;
1577                 cur.undispatched();
1578                 break;
1579         }
1580
1581         needsUpdate |= (cur.pos() != cur.lastpos()) && cur.selection();
1582
1583         // FIXME: The cursor flag is reset two lines below
1584         // so we need to check here if some of the LFUN did touch that.
1585         // for now only Text::erase() and Text::backspace() do that.
1586         // The plan is to verify all the LFUNs and then to remove this
1587         // singleParUpdate boolean altogether.
1588         if (cur.result().update() & Update::Force) {
1589                 singleParUpdate = false;
1590                 needsUpdate = true;
1591         }
1592
1593         // FIXME: the following code should go in favor of fine grained
1594         // update flag treatment.
1595         if (singleParUpdate) {
1596                 // Inserting characters does not change par height
1597                 ParagraphMetrics const & pms
1598                         = cur.bv().parMetrics(cur.bottom().text(), cur.bottom().pit());
1599                 if (pms.dim().height()
1600                     == olddim.height()) {
1601                         // if so, update _only_ this paragraph
1602                         cur.updateFlags(Update::SinglePar |
1603                                 Update::FitCursor |
1604                                 Update::MultiParSel);
1605                         return;
1606                 } else
1607                         needsUpdate = true;
1608         }
1609
1610         if (!needsUpdate
1611             && &oldTopSlice.inset() == &cur.inset()
1612             && oldTopSlice.idx() == cur.idx()
1613             && !sel // sel is a backup of cur.selection() at the biginning of the function.
1614             && !cur.selection())
1615                 // FIXME: it would be better if we could just do this
1616                 //
1617                 //if (cur.result().update() != Update::FitCursor)
1618                 //      cur.noUpdate();
1619                 //
1620                 // But some LFUNs do not set Update::FitCursor when needed, so we
1621                 // do it for all. This is not very harmfull as FitCursor will provoke
1622                 // a full redraw only if needed but still, a proper review of all LFUN
1623                 // should be done and this needsUpdate boolean can then be removed.
1624                 cur.updateFlags(Update::FitCursor);
1625         else
1626                 cur.updateFlags(Update::Force | Update::FitCursor);
1627 }
1628
1629
1630 bool Text::getStatus(Cursor & cur, FuncRequest const & cmd,
1631                         FuncStatus & flag) const
1632 {
1633         BOOST_ASSERT(cur.text() == this);
1634
1635         Font const & font = real_current_font;
1636         bool enable = true;
1637         Inset::Code code = Inset::NO_CODE;
1638
1639         switch (cmd.action) {
1640
1641         case LFUN_DEPTH_DECREMENT:
1642                 enable = changeDepthAllowed(cur, DEC_DEPTH);
1643                 break;
1644
1645         case LFUN_DEPTH_INCREMENT:
1646                 enable = changeDepthAllowed(cur, INC_DEPTH);
1647                 break;
1648
1649         case LFUN_APPENDIX:
1650                 flag.setOnOff(cur.paragraph().params().startOfAppendix());
1651                 return true;
1652
1653         case LFUN_BIBITEM_INSERT:
1654                 enable = (cur.paragraph().layout()->labeltype == LABEL_BIBLIO
1655                           && cur.pos() == 0);
1656                 break;
1657
1658         case LFUN_DIALOG_SHOW_NEW_INSET:
1659                 if (cmd.argument() == "bibitem")
1660                         code = Inset::BIBITEM_CODE;
1661                 else if (cmd.argument() == "bibtex")
1662                         code = Inset::BIBTEX_CODE;
1663                 else if (cmd.argument() == "box")
1664                         code = Inset::BOX_CODE;
1665                 else if (cmd.argument() == "branch")
1666                         code = Inset::BRANCH_CODE;
1667                 else if (cmd.argument() == "citation")
1668                         code = Inset::CITE_CODE;
1669                 else if (cmd.argument() == "ert")
1670                         code = Inset::ERT_CODE;
1671                 else if (cmd.argument() == "external")
1672                         code = Inset::EXTERNAL_CODE;
1673                 else if (cmd.argument() == "float")
1674                         code = Inset::FLOAT_CODE;
1675                 else if (cmd.argument() == "graphics")
1676                         code = Inset::GRAPHICS_CODE;
1677                 else if (cmd.argument() == "include")
1678                         code = Inset::INCLUDE_CODE;
1679                 else if (cmd.argument() == "index")
1680                         code = Inset::INDEX_CODE;
1681                 else if (cmd.argument() == "nomenclature")
1682                         code = Inset::NOMENCL_CODE;
1683                 else if (cmd.argument() == "label")
1684                         code = Inset::LABEL_CODE;
1685                 else if (cmd.argument() == "note")
1686                         code = Inset::NOTE_CODE;
1687                 else if (cmd.argument() == "ref")
1688                         code = Inset::REF_CODE;
1689                 else if (cmd.argument() == "toc")
1690                         code = Inset::TOC_CODE;
1691                 else if (cmd.argument() == "url")
1692                         code = Inset::URL_CODE;
1693                 else if (cmd.argument() == "vspace")
1694                         code = Inset::VSPACE_CODE;
1695                 else if (cmd.argument() == "wrap")
1696                         code = Inset::WRAP_CODE;
1697                 else if (cmd.argument() == "listings")
1698                         code = Inset::LISTINGS_CODE;
1699                 break;
1700
1701         case LFUN_ERT_INSERT:
1702                 code = Inset::ERT_CODE;
1703                 break;
1704         case LFUN_LISTING_INSERT:
1705             code = Inset::LISTINGS_CODE;
1706                 break;
1707         case LFUN_FOOTNOTE_INSERT:
1708                 code = Inset::FOOT_CODE;
1709                 break;
1710         case LFUN_TABULAR_INSERT:
1711                 code = Inset::TABULAR_CODE;
1712                 break;
1713         case LFUN_MARGINALNOTE_INSERT:
1714                 code = Inset::MARGIN_CODE;
1715                 break;
1716         case LFUN_FLOAT_INSERT:
1717         case LFUN_FLOAT_WIDE_INSERT:
1718                 code = Inset::FLOAT_CODE;
1719                 break;
1720         case LFUN_WRAP_INSERT:
1721                 code = Inset::WRAP_CODE;
1722                 break;
1723         case LFUN_FLOAT_LIST:
1724                 code = Inset::FLOAT_LIST_CODE;
1725                 break;
1726 #if 0
1727         case LFUN_LIST_INSERT:
1728                 code = Inset::LIST_CODE;
1729                 break;
1730         case LFUN_THEOREM_INSERT:
1731                 code = Inset::THEOREM_CODE;
1732                 break;
1733 #endif
1734         case LFUN_CAPTION_INSERT:
1735                 code = Inset::CAPTION_CODE;
1736                 break;
1737         case LFUN_NOTE_INSERT:
1738                 code = Inset::NOTE_CODE;
1739                 break;
1740         case LFUN_CHARSTYLE_INSERT:
1741                 code = Inset::CHARSTYLE_CODE;
1742                 if (cur.buffer().params().getTextClass().charstyles().empty())
1743                         enable = false;
1744                 break;
1745         case LFUN_BOX_INSERT:
1746                 code = Inset::BOX_CODE;
1747                 break;
1748         case LFUN_BRANCH_INSERT:
1749                 code = Inset::BRANCH_CODE;
1750                 if (cur.buffer().getMasterBuffer()->params().branchlist().empty())
1751                         enable = false;
1752                 break;
1753         case LFUN_LABEL_INSERT:
1754                 code = Inset::LABEL_CODE;
1755                 break;
1756         case LFUN_OPTIONAL_INSERT:
1757                 code = Inset::OPTARG_CODE;
1758                 enable = numberOfOptArgs(cur.paragraph())
1759                         < cur.paragraph().layout()->optionalargs;
1760                 break;
1761         case LFUN_ENVIRONMENT_INSERT:
1762                 code = Inset::BOX_CODE;
1763                 break;
1764         case LFUN_INDEX_INSERT:
1765                 code = Inset::INDEX_CODE;
1766                 break;
1767         case LFUN_INDEX_PRINT:
1768                 code = Inset::INDEX_PRINT_CODE;
1769                 break;
1770         case LFUN_NOMENCL_INSERT:
1771                 code = Inset::NOMENCL_CODE;
1772                 break;
1773         case LFUN_NOMENCL_PRINT:
1774                 code = Inset::NOMENCL_PRINT_CODE;
1775                 break;
1776         case LFUN_TOC_INSERT:
1777                 code = Inset::TOC_CODE;
1778                 break;
1779         case LFUN_HTML_INSERT:
1780         case LFUN_URL_INSERT:
1781                 code = Inset::URL_CODE;
1782                 break;
1783         case LFUN_QUOTE_INSERT:
1784                 // always allow this, since we will inset a raw quote
1785                 // if an inset is not allowed.
1786                 break;
1787         case LFUN_HYPHENATION_POINT_INSERT:
1788         case LFUN_LIGATURE_BREAK_INSERT:
1789         case LFUN_HFILL_INSERT:
1790         case LFUN_MENU_SEPARATOR_INSERT:
1791         case LFUN_DOTS_INSERT:
1792         case LFUN_END_OF_SENTENCE_PERIOD_INSERT:
1793                 code = Inset::SPECIALCHAR_CODE;
1794                 break;
1795         case LFUN_SPACE_INSERT:
1796                 // slight hack: we know this is allowed in math mode
1797                 if (cur.inTexted())
1798                         code = Inset::SPACE_CODE;
1799                 break;
1800
1801         case LFUN_INSET_MODIFY:
1802                 // We need to disable this, because we may get called for a
1803                 // tabular cell via
1804                 // InsetTabular::getStatus() -> InsetText::getStatus()
1805                 // and we don't handle LFUN_INSET_MODIFY.
1806                 enable = false;
1807                 break;
1808
1809         case LFUN_FONT_EMPH:
1810                 flag.setOnOff(font.emph() == Font::ON);
1811                 return true;
1812
1813         case LFUN_FONT_NOUN:
1814                 flag.setOnOff(font.noun() == Font::ON);
1815                 return true;
1816
1817         case LFUN_FONT_BOLD:
1818                 flag.setOnOff(font.series() == Font::BOLD_SERIES);
1819                 return true;
1820
1821         case LFUN_FONT_SANS:
1822                 flag.setOnOff(font.family() == Font::SANS_FAMILY);
1823                 return true;
1824
1825         case LFUN_FONT_ROMAN:
1826                 flag.setOnOff(font.family() == Font::ROMAN_FAMILY);
1827                 return true;
1828
1829         case LFUN_FONT_CODE:
1830                 flag.setOnOff(font.family() == Font::TYPEWRITER_FAMILY);
1831                 return true;
1832
1833         case LFUN_CUT:
1834         case LFUN_COPY:
1835                 enable = cur.selection();
1836                 break;
1837
1838         case LFUN_PASTE:
1839                 if (cmd.argument().empty()) {
1840                         if (theClipboard().isInternal())
1841                                 enable = cap::numberOfSelections() > 0;
1842                         else
1843                                 enable = !theClipboard().empty();
1844                 } else {
1845                         string const arg = to_utf8(cmd.argument());
1846                         if (isStrUnsignedInt(arg)) {
1847                                 unsigned int n = convert<unsigned int>(arg);
1848                                 enable = cap::numberOfSelections() > n;
1849                         } else
1850                                 // unknown argument
1851                                 enable = false;
1852                 }
1853                 break;
1854
1855         case LFUN_CLIPBOARD_PASTE:
1856                 enable = !theClipboard().empty();
1857                 break;
1858
1859         case LFUN_PRIMARY_SELECTION_PASTE:
1860                 enable = cur.selection() || !theSelection().empty();
1861                 break;
1862
1863         case LFUN_PARAGRAPH_MOVE_UP:
1864                 enable = cur.pit() > 0 && !cur.selection();
1865                 break;
1866
1867         case LFUN_PARAGRAPH_MOVE_DOWN:
1868                 enable = cur.pit() < cur.lastpit() && !cur.selection();
1869                 break;
1870
1871         case LFUN_INSET_DISSOLVE:
1872                 enable = !isMainText(*cur.bv().buffer()) && cur.inset().nargs() == 1;
1873                 break;
1874
1875         case LFUN_CHANGE_ACCEPT:
1876         case LFUN_CHANGE_REJECT:
1877                 // TODO: context-sensitive enabling of LFUN_CHANGE_ACCEPT/REJECT
1878                 // In principle, these LFUNs should only be enabled if there
1879                 // is a change at the current position/in the current selection.
1880                 // However, without proper optimizations, this will inevitably
1881                 // result in unacceptable performance - just imagine a user who
1882                 // wants to select the complete content of a long document.
1883                 enable = true;
1884                 break;
1885
1886         case LFUN_WORD_DELETE_FORWARD:
1887         case LFUN_WORD_DELETE_BACKWARD:
1888         case LFUN_LINE_DELETE:
1889         case LFUN_WORD_FORWARD:
1890         case LFUN_WORD_BACKWARD:
1891         case LFUN_CHAR_FORWARD:
1892         case LFUN_CHAR_FORWARD_SELECT:
1893         case LFUN_CHAR_BACKWARD:
1894         case LFUN_CHAR_BACKWARD_SELECT:
1895         case LFUN_UP:
1896         case LFUN_UP_SELECT:
1897         case LFUN_DOWN:
1898         case LFUN_DOWN_SELECT:
1899         case LFUN_PARAGRAPH_UP_SELECT:
1900         case LFUN_PARAGRAPH_DOWN_SELECT:
1901         case LFUN_SCREEN_UP_SELECT:
1902         case LFUN_SCREEN_DOWN_SELECT:
1903         case LFUN_LINE_BEGIN_SELECT:
1904         case LFUN_LINE_END_SELECT:
1905         case LFUN_WORD_FORWARD_SELECT:
1906         case LFUN_WORD_BACKWARD_SELECT:
1907         case LFUN_WORD_SELECT:
1908         case LFUN_PARAGRAPH_UP:
1909         case LFUN_PARAGRAPH_DOWN:
1910         case LFUN_SCREEN_UP:
1911         case LFUN_SCREEN_DOWN:
1912         case LFUN_LINE_BEGIN:
1913         case LFUN_LINE_END:
1914         case LFUN_BREAK_LINE:
1915         case LFUN_CHAR_DELETE_FORWARD:
1916         case LFUN_DELETE_FORWARD_SKIP:
1917         case LFUN_CHAR_DELETE_BACKWARD:
1918         case LFUN_DELETE_BACKWARD_SKIP:
1919         case LFUN_BREAK_PARAGRAPH:
1920         case LFUN_BREAK_PARAGRAPH_KEEP_LAYOUT:
1921         case LFUN_BREAK_PARAGRAPH_SKIP:
1922         case LFUN_PARAGRAPH_SPACING:
1923         case LFUN_INSET_INSERT:
1924         case LFUN_WORD_UPCASE:
1925         case LFUN_WORD_LOWCASE:
1926         case LFUN_WORD_CAPITALIZE:
1927         case LFUN_CHARS_TRANSPOSE:
1928         case LFUN_SERVER_GET_XY:
1929         case LFUN_SERVER_SET_XY:
1930         case LFUN_SERVER_GET_FONT:
1931         case LFUN_SERVER_GET_LAYOUT:
1932         case LFUN_LAYOUT:
1933         case LFUN_DATE_INSERT:
1934         case LFUN_SELF_INSERT:
1935         case LFUN_LINE_INSERT:
1936         case LFUN_PAGEBREAK_INSERT:
1937         case LFUN_CLEARPAGE_INSERT:
1938         case LFUN_CLEARDOUBLEPAGE_INSERT:
1939         case LFUN_MATH_DISPLAY:
1940         case LFUN_MATH_IMPORT_SELECTION:
1941         case LFUN_MATH_MODE:
1942         case LFUN_MATH_MACRO:
1943         case LFUN_MATH_MATRIX:
1944         case LFUN_MATH_DELIM:
1945         case LFUN_MATH_BIGDELIM:
1946         case LFUN_MATH_INSERT:
1947         case LFUN_MATH_SUBSCRIPT:
1948         case LFUN_MATH_SUPERSCRIPT:
1949         case LFUN_FONT_DEFAULT:
1950         case LFUN_FONT_UNDERLINE:
1951         case LFUN_FONT_SIZE:
1952         case LFUN_LANGUAGE:
1953         case LFUN_FONT_FREE_APPLY:
1954         case LFUN_FONT_FREE_UPDATE:
1955         case LFUN_LAYOUT_PARAGRAPH:
1956         case LFUN_PARAGRAPH_UPDATE:
1957         case LFUN_ACCENT_UMLAUT:
1958         case LFUN_ACCENT_CIRCUMFLEX:
1959         case LFUN_ACCENT_GRAVE:
1960         case LFUN_ACCENT_ACUTE:
1961         case LFUN_ACCENT_TILDE:
1962         case LFUN_ACCENT_CEDILLA:
1963         case LFUN_ACCENT_MACRON:
1964         case LFUN_ACCENT_DOT:
1965         case LFUN_ACCENT_UNDERDOT:
1966         case LFUN_ACCENT_UNDERBAR:
1967         case LFUN_ACCENT_CARON:
1968         case LFUN_ACCENT_SPECIAL_CARON:
1969         case LFUN_ACCENT_BREVE:
1970         case LFUN_ACCENT_TIE:
1971         case LFUN_ACCENT_HUNGARIAN_UMLAUT:
1972         case LFUN_ACCENT_CIRCLE:
1973         case LFUN_ACCENT_OGONEK:
1974         case LFUN_THESAURUS_ENTRY:
1975         case LFUN_PARAGRAPH_PARAMS_APPLY:
1976         case LFUN_ESCAPE:
1977         case LFUN_BUFFER_END:
1978         case LFUN_BUFFER_BEGIN:
1979         case LFUN_BUFFER_BEGIN_SELECT:
1980         case LFUN_BUFFER_END_SELECT:
1981         case LFUN_UNICODE_INSERT:
1982                 // these are handled in our dispatch()
1983                 enable = true;
1984                 break;
1985
1986         default:
1987                 return false;
1988         }
1989
1990         if (code != Inset::NO_CODE
1991             && (cur.empty() || !cur.inset().insetAllowed(code)))
1992                 enable = false;
1993
1994         flag.enabled(enable);
1995         return true;
1996 }
1997
1998
1999 void Text::pasteString(Cursor & cur, docstring const & clip,
2000                 bool asParagraphs)
2001 {
2002         cur.clearSelection();
2003         if (!clip.empty()) {
2004                 recordUndo(cur);
2005                 if (asParagraphs)
2006                         insertStringAsParagraphs(cur, clip);
2007                 else
2008                         insertStringAsLines(cur, clip);
2009         }
2010 }
2011
2012 } // namespace lyx