src/mathed/InsetMathNest.cpp

   1 /**
   2  * \file InsetMathNest.cpp
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author André Pönitz
   7  *
   8  * Full author contact details are available in file CREDITS.
   9  */
  10
  11 #include <config.h>
  12
  13 #include "InsetMathNest.h"
  14
  15 #include "InsetMathArray.h"
  16 #include "InsetMathAMSArray.h"
  17 #include "InsetMathBig.h"
  18 #include "InsetMathBox.h"
  19 #include "InsetMathBrace.h"
  20 #include "InsetMathChar.h"
  21 #include "InsetMathColor.h"
  22 #include "InsetMathComment.h"
  23 #include "InsetMathDelim.h"
  24 #include "InsetMathEnsureMath.h"
  25 #include "InsetMathHull.h"
  26 #include "InsetMathRef.h"
  27 #include "InsetMathScript.h"
  28 #include "InsetMathSpace.h"
  29 #include "InsetMathSymbol.h"
  30 #include "InsetMathUnknown.h"
  31 #include "MathAutoCorrect.h"
  32 #include "MathCompletionList.h"
  33 #include "MathData.h"
  34 #include "MathFactory.h"
  35 #include "MathMacro.h"
  36 #include "MathMacroArgument.h"
  37 #include "MathParser.h"
  38 #include "MathStream.h"
  39 #include "MathSupport.h"
  40
  41 #include "Buffer.h"
  42 #include "BufferParams.h"
  43 #include "BufferView.h"
  44 #include "CoordCache.h"
  45 #include "Cursor.h"
  46 #include "CutAndPaste.h"
  47 #include "DispatchResult.h"
  48 #include "Encoding.h"
  49 #include "FuncRequest.h"
  50 #include "FuncStatus.h"
  51 #include "LaTeXFeatures.h"
  52 #include "LyX.h"
  53 #include "LyXRC.h"
  54 #include "MetricsInfo.h"
  55 #include "OutputParams.h"
  56 #include "TexRow.h"
  57 #include "Text.h"
  58
  59 #include "frontends/Application.h"
  60 #include "frontends/Clipboard.h"
  61 #include "frontends/Painter.h"
  62 #include "frontends/Selection.h"
  63
  64 #include "support/debug.h"
  65 #include "support/docstream.h"
  66 #include "support/gettext.h"
  67 #include "support/lassert.h"
  68 #include "support/lstrings.h"
  69 #include "support/textutils.h"
  70
  71 #include <algorithm>
  72 #include <sstream>
  73
  74 using namespace std;
  75 using namespace lyx::support;
  76
  77 namespace lyx {
  78
  79 using cap::copySelection;
  80 using cap::grabAndEraseSelection;
  81 using cap::cutSelection;
  82 using cap::replaceSelection;
  83 using cap::selClearOrDel;
  84
  85
  86 InsetMathNest::InsetMathNest(Buffer * buf, idx_type nargs)
  87         : InsetMath(buf), cells_(nargs), lock_(false)
  88 {
  89         setBuffer(*buf);
  90 }
  91
  92
  93 InsetMathNest::InsetMathNest(InsetMathNest const & inset)
  94         : InsetMath(inset), cells_(inset.cells_), lock_(inset.lock_)
  95 {}
  96
  97
  98 InsetMathNest::~InsetMathNest()
  99 {
 100         map<BufferView const *, bool>::iterator it = mouse_hover_.begin();
 101         map<BufferView const *, bool>::iterator end = mouse_hover_.end();
 102         for (; it != end; ++it)
 103                 if (it->second)
 104                         it->first->clearLastInset(this);
 105 }
 106
 107
 108 InsetMathNest & InsetMathNest::operator=(InsetMathNest const & inset)
 109 {
 110         cells_ = inset.cells_;
 111         lock_ = inset.lock_;
 112         mouse_hover_.clear();
 113         InsetMath::operator=(inset);
 114         return *this;
 115 }
 116
 117
 118 void InsetMathNest::setBuffer(Buffer & buffer)
 119 {
 120         InsetMath::setBuffer(buffer);
 121         for (idx_type i = 0, n = nargs(); i != n; ++i) {
 122                 MathData & data = cell(i);
 123                 for (size_t j = 0; j != data.size(); ++j)
 124                         data[j].nucleus()->setBuffer(buffer);
 125         }
 126 }
 127
 128
 129 InsetMath::idx_type InsetMathNest::nargs() const
 130 {
 131         return cells_.size();
 132 }
 133
 134
 135 void InsetMathNest::cursorPos(BufferView const & bv,
 136                 CursorSlice const & sl, bool /*boundary*/,
 137                 int & x, int & y) const
 138 {
 139 // FIXME: This is a hack. Ideally, the coord cache should not store
 140 // absolute positions, but relative ones. This would mean to call
 141 // setXY() not in MathData::draw(), but in the parent insets' draw()
 142 // with the correctly adjusted x,y values. But this means that we'd have
 143 // to touch all (math)inset's draw() methods. Right now, we'll store
 144 // absolute value, and make them here relative, only to make them
 145 // absolute again when actually drawing the cursor. What a mess.
 146         LASSERT(&sl.inset() == this, return);
 147         MathData const & ar = sl.cell();
 148         CoordCache const & coord_cache = bv.coordCache();
 149         if (!coord_cache.getArrays().has(&ar)) {
 150                 // this can (semi-)legally happen if we just created this cell
 151                 // and it never has been drawn before. So don't ASSERT.
 152                 //lyxerr << "no cached data for array " << &ar << endl;
 153                 x = 0;
 154                 y = 0;
 155                 return;
 156         }
 157         Point const pt = coord_cache.getArrays().xy(&ar);
 158         if (!coord_cache.getInsets().has(this)) {
 159                 // same as above
 160                 //lyxerr << "no cached data for inset " << this << endl;
 161                 x = 0;
 162                 y = 0;
 163                 return;
 164         }
 165         Point const pt2 = coord_cache.getInsets().xy(this);
 166         //lyxerr << "retrieving position cache for MathData "
 167         //      << pt.x_ << ' ' << pt.y_ << endl;
 168         x = pt.x_ - pt2.x_ + ar.pos2x(&bv, sl.pos());
 169         y = pt.y_ - pt2.y_;
 170 //      lyxerr << "pt.y_ : " << pt.y_ << " pt2_.y_ : " << pt2.y_
 171 //              << " asc: " << ascent() << "  des: " << descent()
 172 //              << " ar.asc: " << ar.ascent() << " ar.des: " << ar.descent() << endl;
 173         // move cursor visually into empty cells ("blue rectangles");
 174         if (ar.empty())
 175                 x += 2;
 176 }
 177
 178
 179 void InsetMathNest::cellsMetrics(MetricsInfo const & mi) const
 180 {
 181         MetricsInfo m = mi;
 182         for (auto const & cell : cells_) {
 183                 Dimension dim;
 184                 cell.metrics(m, dim);
 185         }
 186 }
 187
 188
 189 void InsetMathNest::updateBuffer(ParIterator const & it, UpdateType utype)
 190 {
 191         for (idx_type i = 0, n = nargs(); i != n; ++i)
 192                 cell(i).updateBuffer(it, utype);
 193 }
 194
 195
 196
 197 bool InsetMathNest::idxNext(Cursor & cur) const
 198 {
 199         LASSERT(&cur.inset() == this, return false);
 200         if (cur.idx() == cur.lastidx())
 201                 return false;
 202         ++cur.idx();
 203         cur.pos() = 0;
 204         return true;
 205 }
 206
 207
 208 bool InsetMathNest::idxForward(Cursor & cur) const
 209 {
 210         return idxNext(cur);
 211 }
 212
 213
 214 bool InsetMathNest::idxPrev(Cursor & cur) const
 215 {
 216         LASSERT(&cur.inset() == this, return false);
 217         if (cur.idx() == 0)
 218                 return false;
 219         --cur.idx();
 220         cur.pos() = cur.lastpos();
 221         return true;
 222 }
 223
 224
 225 bool InsetMathNest::idxBackward(Cursor & cur) const
 226 {
 227         return idxPrev(cur);
 228 }
 229
 230
 231 bool InsetMathNest::idxFirst(Cursor & cur) const
 232 {
 233         LASSERT(&cur.inset() == this, return false);
 234         if (nargs() == 0)
 235                 return false;
 236         cur.idx() = 0;
 237         cur.pos() = 0;
 238         return true;
 239 }
 240
 241
 242 bool InsetMathNest::idxLast(Cursor & cur) const
 243 {
 244         LASSERT(&cur.inset() == this, return false);
 245         if (nargs() == 0)
 246                 return false;
 247         cur.idx() = cur.lastidx();
 248         cur.pos() = cur.lastpos();
 249         return true;
 250 }
 251
 252
 253 void InsetMathNest::dump() const
 254 {
 255         odocstringstream oss;
 256         otexrowstream ots(oss);
 257         WriteStream os(ots);
 258         os << "---------------------------------------------\n";
 259         write(os);
 260         os << "\n";
 261         for (idx_type i = 0, n = nargs(); i != n; ++i)
 262                 os << cell(i) << "\n";
 263         os << "---------------------------------------------\n";
 264         lyxerr << to_utf8(oss.str());
 265 }
 266
 267
 268 void InsetMathNest::draw(PainterInfo &, int, int) const
 269 {
 270 #if 0
 271         if (lock_)
 272                 pi.pain.fillRectangle(x, y - ascent(), width(), height(),
 273                                         Color_mathlockbg);
 274 #endif
 275 }
 276
 277
 278 void InsetMathNest::drawSelection(PainterInfo & pi, int x, int y) const
 279 {
 280         BufferView & bv = *pi.base.bv;
 281         // this should use the x/y values given, not the cached values
 282         Cursor & cur = bv.cursor();
 283         if (!cur.selection())
 284                 return;
 285         if (&cur.inset() != this)
 286                 return;
 287
 288         // FIXME: hack to get position cache warm
 289         bool const original_drawing_state = pi.pain.isDrawingEnabled();
 290         pi.pain.setDrawingEnabled(false);
 291         draw(pi, x, y);
 292         pi.pain.setDrawingEnabled(original_drawing_state);
 293
 294         CursorSlice s1 = cur.selBegin();
 295         CursorSlice s2 = cur.selEnd();
 296
 297         //lyxerr << "InsetMathNest::drawing selection: "
 298         //      << " s1: " << s1 << " s2: " << s2 << endl;
 299         if (s1.idx() == s2.idx()) {
 300                 MathData const & c = cell(s1.idx());
 301                 Geometry const & g = bv.coordCache().getArrays().geometry(&c);
 302                 int x1 = g.pos.x_ + c.pos2x(pi.base.bv, s1.pos());
 303                 int y1 = g.pos.y_ - g.dim.ascent();
 304                 int x2 = g.pos.x_ + c.pos2x(pi.base.bv, s2.pos());
 305                 int y2 = g.pos.y_ + g.dim.descent();
 306                 pi.pain.fillRectangle(x1, y1, x2 - x1, y2 - y1, Color_selection);
 307         //lyxerr << "InsetMathNest::drawing selection 3: "
 308         //      << " x1: " << x1 << " x2: " << x2
 309         //      << " y1: " << y1 << " y2: " << y2 << endl;
 310         } else {
 311                 for (idx_type i = 0; i < nargs(); ++i) {
 312                         if (idxBetween(i, s1.idx(), s2.idx())) {
 313                                 MathData const & c = cell(i);
 314                                 Geometry const & g = bv.coordCache().getArrays().geometry(&c);
 315                                 int x1 = g.pos.x_;
 316                                 int y1 = g.pos.y_ - g.dim.ascent();
 317                                 int x2 = g.pos.x_ + g.dim.width();
 318                                 int y2 = g.pos.y_ + g.dim.descent();
 319                                 pi.pain.fillRectangle(x1, y1, x2 - x1, y2 - y1, Color_selection);
 320                         }
 321                 }
 322         }
 323 }
 324
 325
 326 void InsetMathNest::validate(LaTeXFeatures & features) const
 327 {
 328         for (idx_type i = 0; i < nargs(); ++i)
 329                 cell(i).validate(features);
 330 }
 331
 332
 333 void InsetMathNest::replace(ReplaceData & rep)
 334 {
 335         for (idx_type i = 0; i < nargs(); ++i)
 336                 cell(i).replace(rep);
 337 }
 338
 339
 340 bool InsetMathNest::contains(MathData const & ar) const
 341 {
 342         for (idx_type i = 0; i < nargs(); ++i)
 343                 if (cell(i).contains(ar))
 344                         return true;
 345         return false;
 346 }
 347
 348
 349 bool InsetMathNest::lock() const
 350 {
 351         return lock_;
 352 }
 353
 354
 355 void InsetMathNest::lock(bool l)
 356 {
 357         lock_ = l;
 358 }
 359
 360
 361 bool InsetMathNest::isActive() const
 362 {
 363         return nargs() > 0;
 364 }
 365
 366
 367 MathData InsetMathNest::glue() const
 368 {
 369         MathData ar;
 370         for (size_t i = 0; i < nargs(); ++i)
 371                 ar.append(cell(i));
 372         return ar;
 373 }
 374
 375
 376 void InsetMathNest::write(WriteStream & os) const
 377 {
 378         MathEnsurer ensurer(os, currentMode() == MATH_MODE);
 379         ModeSpecifier specifier(os, currentMode(), lockedMode());
 380         docstring const latex_name = name();
 381         os << '\\' << latex_name;
 382         for (size_t i = 0; i < nargs(); ++i) {
 383                 Changer dummy = os.changeRowEntry(TexRow::mathEntry(id(),i));
 384                 os << '{' << cell(i) << '}';
 385         }
 386         if (nargs() == 0)
 387                 os.pendingSpace(true);
 388         if (lock_ && !os.latex()) {
 389                 os << "\\lyxlock";
 390                 os.pendingSpace(true);
 391         }
 392 }
 393
 394
 395 void InsetMathNest::normalize(NormalStream & os) const
 396 {
 397         os << '[' << name();
 398         for (size_t i = 0; i < nargs(); ++i)
 399                 os << ' ' << cell(i);
 400         os << ']';
 401 }
 402
 403
 404 void InsetMathNest::latex(otexstream & os, OutputParams const & runparams) const
 405 {
 406         WriteStream wi(os, runparams.moving_arg, true,
 407                         runparams.dryrun ? WriteStream::wsDryrun : WriteStream::wsDefault,
 408                         runparams.encoding);
 409         wi.strikeoutMath(runparams.inDeletedInset
 410                          && (!LaTeXFeatures::isAvailable("dvipost")
 411                                 || (runparams.flavor != OutputParams::LATEX
 412                                     && runparams.flavor != OutputParams::DVILUATEX)));
 413         if (runparams.inulemcmd) {
 414                 wi.ulemCmd(WriteStream::UNDERLINE);
 415                 if (runparams.local_font) {
 416                         FontInfo f = runparams.local_font->fontInfo();
 417                         if (f.strikeout() == FONT_ON)
 418                                 wi.ulemCmd(WriteStream::STRIKEOUT);
 419                 }
 420         }
 421         wi.canBreakLine(os.canBreakLine());
 422         Changer dummy = wi.changeRowEntry(TexRow::textEntry(runparams.lastid,
 423                                                             runparams.lastpos));
 424         write(wi);
 425         // Reset parbreak status after a math inset.
 426         os.lastChar(0);
 427         os.canBreakLine(wi.canBreakLine());
 428 }
 429
 430
 431 bool InsetMathNest::setMouseHover(BufferView const * bv, bool mouse_hover)
 432         const
 433 {
 434         mouse_hover_[bv] = mouse_hover;
 435         return true;
 436 }
 437
 438
 439 bool InsetMathNest::notifyCursorLeaves(Cursor const & /*old*/, Cursor & /*cur*/)
 440 {
 441         // FIXME: look here
 442 #if 0
 443         MathData & ar = cur.cell();
 444         // remove base-only "scripts"
 445         for (pos_type i = 0; i + 1 < ar.size(); ++i) {
 446                 InsetMathScript * p = operator[](i).nucleus()->asScriptInset();
 447                 if (p && p->nargs() == 1) {
 448                         MathData ar = p->nuc();
 449                         erase(i);
 450                         insert(i, ar);
 451                         cur.adjust(i, ar.size() - 1);
 452                 }
 453         }
 454
 455         // glue adjacent font insets of the same kind
 456         for (pos_type i = 0; i + 1 < size(); ++i) {
 457                 InsetMathFont * p = operator[](i).nucleus()->asFontInset();
 458                 InsetMathFont const * q = operator[](i + 1)->asFontInset();
 459                 if (p && q && p->name() == q->name()) {
 460                         p->cell(0).append(q->cell(0));
 461                         erase(i + 1);
 462                         cur.adjust(i, -1);
 463                 }
 464         }
 465 #endif
 466         return false;
 467 }
 468
 469
 470 void InsetMathNest::handleFont
 471         (Cursor & cur, docstring const & arg, char const * const font)
 472 {
 473         handleFont(cur, arg, from_ascii(font));
 474 }
 475
 476
 477 void InsetMathNest::handleFont(Cursor & cur, docstring const & arg,
 478         docstring const & font)
 479 {
 480         cur.recordUndoSelection();
 481
 482         // this whole function is a hack and won't work for incremental font
 483         // changes...
 484         if (cur.inset().asInsetMath()->name() == font)
 485                 cur.handleFont(to_utf8(font));
 486         else
 487                 handleNest(cur, createInsetMath(font, cur.buffer()), arg);
 488 }
 489
 490
 491 void InsetMathNest::handleNest(Cursor & cur, MathAtom const & nest)
 492 {
 493         handleNest(cur, nest, docstring());
 494 }
 495
 496
 497 void InsetMathNest::handleNest(Cursor & cur, MathAtom const & nest,
 498         docstring const & arg)
 499 {
 500         CursorSlice i1 = cur.selBegin();
 501         CursorSlice i2 = cur.selEnd();
 502         if (!i1.inset().asInsetMath())
 503                 return;
 504         if (i1.idx() == i2.idx()) {
 505                 // the easy case where only one cell is selected
 506                 cur.handleNest(nest);
 507                 cur.insert(arg);
 508                 return;
 509         }
 510
 511         // multiple selected cells in a simple non-grid inset
 512         if (i1.asInsetMath()->nrows() == 0 || i1.asInsetMath()->ncols() == 0) {
 513                 for (idx_type i = i1.idx(); i <= i2.idx(); ++i) {
 514                         // select cell
 515                         cur.idx() = i;
 516                         cur.pos() = 0;
 517                         cur.resetAnchor();
 518                         cur.pos() = cur.lastpos();
 519                         cur.setSelection();
 520
 521                         // change font of cell
 522                         cur.handleNest(nest);
 523                         cur.insert(arg);
 524
 525                         // cur is in the font inset now. If the loop continues,
 526                         // we need to get outside again for the next cell
 527                         if (i + 1 <= i2.idx())
 528                                 cur.pop_back();
 529                 }
 530                 return;
 531         }
 532
 533         // the complicated case with multiple selected cells in a grid
 534         row_type r1, r2;
 535         col_type c1, c2;
 536         cap::region(i1, i2, r1, r2, c1, c2);
 537         for (row_type row = r1; row <= r2; ++row) {
 538                 for (col_type col = c1; col <= c2; ++col) {
 539                         // select cell
 540                         cur.idx() = i1.asInsetMath()->index(row, col);
 541                         cur.pos() = 0;
 542                         cur.resetAnchor();
 543                         cur.pos() = cur.lastpos();
 544                         cur.setSelection();
 545
 546                         //
 547                         cur.handleNest(nest);
 548                         cur.insert(arg);
 549
 550                         // cur is in the font inset now. If the loop continues,
 551                         // we need to get outside again for the next cell
 552                         if (col + 1 <= c2 || row + 1 <= r2)
 553                                 cur.pop_back();
 554                 }
 555         }
 556 }
 557
 558
 559 void InsetMathNest::handleFont2(Cursor & cur, docstring const & arg)
 560 {
 561         cur.recordUndoSelection();
 562         Font font;
 563         bool b;
 564         font.fromString(to_utf8(arg), b);
 565         if (font.fontInfo().color() != Color_inherit &&
 566             font.fontInfo().color() != Color_ignore)
 567                 handleNest(cur, MathAtom(new InsetMathColor(buffer_, true, font.fontInfo().color())));
 568
 569         // FIXME: support other font changes here as well?
 570 }
 571
 572
 573 void InsetMathNest::doDispatch(Cursor & cur, FuncRequest & cmd)
 574 {
 575         //LYXERR0("InsetMathNest: request: " << cmd);
 576
 577         Parse::flags parseflg = Parse::QUIET | Parse::USETEXT;
 578
 579         FuncCode const act = cmd.action();
 580         switch (act) {
 581
 582         case LFUN_CLIPBOARD_PASTE:
 583                 parseflg |= Parse::VERBATIM;
 584                 // fall through
 585         case LFUN_PASTE: {
 586                 if (cur.currentMode() != MATH_MODE)
 587                         parseflg |= Parse::TEXTMODE;
 588                 cur.recordUndoSelection();
 589                 cur.message(_("Paste"));
 590                 replaceSelection(cur);
 591                 docstring topaste;
 592                 if (cmd.argument().empty() && !theClipboard().isInternal())
 593                         topaste = theClipboard().getAsText(frontend::Clipboard::PlainTextType);
 594                 else {
 595                         size_t n = 0;
 596                         idocstringstream is(cmd.argument());
 597                         is >> n;
 598                         topaste = cap::selection(n, buffer().params().documentClassPtr());
 599                 }
 600                 cur.niceInsert(topaste, parseflg, false);
 601                 cur.clearSelection(); // bug 393
 602                 cur.forceBufferUpdate();
 603                 cur.finishUndo();
 604                 break;
 605         }
 606
 607         case LFUN_CUT:
 608                 cur.recordUndo();
 609                 cutSelection(cur, true, true);
 610                 cur.message(_("Cut"));
 611                 // Prevent stale position >= size crash
 612                 // Probably not necessary anymore, see eraseSelection (gb 2005-10-09)
 613                 cur.normalize();
 614                 cur.forceBufferUpdate();
 615                 break;
 616
 617         case LFUN_COPY:
 618                 copySelection(cur);
 619                 cur.message(_("Copy"));
 620                 break;
 621
 622         case LFUN_MOUSE_PRESS:
 623                 lfunMousePress(cur, cmd);
 624                 break;
 625
 626         case LFUN_MOUSE_MOTION:
 627                 lfunMouseMotion(cur, cmd);
 628                 break;
 629
 630         case LFUN_MOUSE_RELEASE:
 631                 lfunMouseRelease(cur, cmd);
 632                 break;
 633
 634         case LFUN_FINISHED_LEFT: // in math, left is backwards
 635         case LFUN_FINISHED_BACKWARD:
 636                 cur.bv().cursor() = cur;
 637                 break;
 638
 639         case LFUN_FINISHED_RIGHT: // in math, right is forward
 640         case LFUN_FINISHED_FORWARD:
 641                 ++cur.pos();
 642                 cur.bv().cursor() = cur;
 643                 break;
 644
 645         case LFUN_WORD_RIGHT:
 646         case LFUN_WORD_LEFT:
 647         case LFUN_WORD_BACKWARD:
 648         case LFUN_WORD_FORWARD:
 649         case LFUN_CHAR_RIGHT:
 650         case LFUN_CHAR_LEFT:
 651         case LFUN_CHAR_BACKWARD:
 652         case LFUN_CHAR_FORWARD:
 653                 cur.screenUpdateFlags(Update::Decoration | Update::FitCursor);
 654                 // fall through
 655         case LFUN_WORD_RIGHT_SELECT:
 656         case LFUN_WORD_LEFT_SELECT:
 657         case LFUN_WORD_BACKWARD_SELECT:
 658         case LFUN_WORD_FORWARD_SELECT:
 659         case LFUN_CHAR_RIGHT_SELECT:
 660         case LFUN_CHAR_LEFT_SELECT:
 661         case LFUN_CHAR_BACKWARD_SELECT:
 662         case LFUN_CHAR_FORWARD_SELECT: {
 663                 // are we in a selection?
 664                 bool select = (act == LFUN_WORD_RIGHT_SELECT
 665                                            || act == LFUN_WORD_LEFT_SELECT
 666                                            || act == LFUN_WORD_BACKWARD_SELECT
 667                                            || act == LFUN_WORD_FORWARD_SELECT
 668                                || act == LFUN_CHAR_RIGHT_SELECT
 669                                            || act == LFUN_CHAR_LEFT_SELECT
 670                                            || act == LFUN_CHAR_BACKWARD_SELECT
 671                                            || act == LFUN_CHAR_FORWARD_SELECT);
 672                 // select words
 673                 bool word = (act == LFUN_WORD_RIGHT_SELECT
 674                              || act == LFUN_WORD_LEFT_SELECT
 675                              || act == LFUN_WORD_BACKWARD_SELECT
 676                              || act == LFUN_WORD_FORWARD_SELECT
 677                              || act == LFUN_WORD_RIGHT
 678                              || act == LFUN_WORD_LEFT
 679                              || act == LFUN_WORD_BACKWARD
 680                              || act == LFUN_WORD_FORWARD);
 681                 // are we moving forward or backwards?
 682                 // If the command was RIGHT or LEFT, then whether we're moving forward
 683                 // or backwards depends on the cursor movement mode (logical or visual):
 684                 //  * in visual mode, since math is always LTR, right -> forward,
 685                 //    left -> backwards
 686                 //  * in logical mode, the mapping is determined by the
 687                 //    reverseDirectionNeeded() function
 688
 689                 bool forward;
 690                 FuncCode finish_lfun;
 691
 692                 if (act == LFUN_CHAR_FORWARD
 693                     || act == LFUN_CHAR_FORWARD_SELECT
 694                     || act == LFUN_WORD_FORWARD
 695                     || act == LFUN_WORD_FORWARD_SELECT) {
 696                         forward = true;
 697                         finish_lfun = LFUN_FINISHED_FORWARD;
 698                 }
 699                 else if (act == LFUN_CHAR_BACKWARD
 700                          || act == LFUN_CHAR_BACKWARD_SELECT
 701                          || act == LFUN_WORD_BACKWARD
 702                          || act == LFUN_WORD_BACKWARD_SELECT) {
 703                         forward = false;
 704                         finish_lfun = LFUN_FINISHED_BACKWARD;
 705                 }
 706                 else {
 707                         bool right = (act == LFUN_CHAR_RIGHT_SELECT
 708                                                   || act == LFUN_CHAR_RIGHT
 709                                       || act == LFUN_WORD_RIGHT_SELECT
 710                                       || act == LFUN_WORD_RIGHT);
 711                         if (lyxrc.visual_cursor || !cur.reverseDirectionNeeded())
 712                                 forward = right;
 713                         else
 714                                 forward = !right;
 715
 716                         if (right)
 717                                 finish_lfun = LFUN_FINISHED_RIGHT;
 718                         else
 719                                 finish_lfun = LFUN_FINISHED_LEFT;
 720                 }
 721                 // Now that we know exactly what we want to do, let's do it!
 722                 cur.selHandle(select);
 723                 cur.clearTargetX();
 724                 cur.macroModeClose();
 725                 // try moving forward or backwards as necessary...
 726                 if (!(forward ? cur.mathForward(word) : cur.mathBackward(word))) {
 727                         // ... and if movement failed, then finish forward or backwards
 728                         // as necessary
 729                         cmd = FuncRequest(finish_lfun);
 730                         cur.undispatched();
 731                 }
 732                 break;
 733         }
 734
 735         case LFUN_DOWN:
 736         case LFUN_UP:
 737         case LFUN_PARAGRAPH_UP:
 738         case LFUN_PARAGRAPH_DOWN:
 739                 cur.screenUpdateFlags(Update::Decoration | Update::FitCursor);
 740                 // fall through
 741         case LFUN_DOWN_SELECT:
 742         case LFUN_UP_SELECT:
 743         case LFUN_PARAGRAPH_UP_SELECT:
 744         case LFUN_PARAGRAPH_DOWN_SELECT: {
 745                 // close active macro
 746                 if (cur.inMacroMode()) {
 747                         cur.macroModeClose();
 748                         break;
 749                 }
 750
 751                 // stop/start the selection
 752                 bool select = act == LFUN_DOWN_SELECT
 753                         || act == LFUN_UP_SELECT
 754                         || act == LFUN_PARAGRAPH_DOWN_SELECT
 755                         || act == LFUN_PARAGRAPH_UP_SELECT;
 756                 cur.selHandle(select);
 757
 758                 // handle autocorrect:
 759                 if (lyxrc.autocorrection_math && cur.autocorrect()) {
 760                         cur.autocorrect() = false;
 761                         cur.message(_("Autocorrect Off ('!' to enter)"));
 762                 }
 763
 764                 // go up/down
 765                 bool up = act == LFUN_UP || act == LFUN_UP_SELECT
 766                         || act == LFUN_PARAGRAPH_UP || act == LFUN_PARAGRAPH_UP_SELECT;
 767                 bool successful = cur.upDownInMath(up);
 768                 if (successful)
 769                         break;
 770
 771                 if (cur.fixIfBroken())
 772                         // FIXME: Something bad happened. We pass the corrected Cursor
 773                         // instead of letting things go worse.
 774                         break;
 775
 776                 // We did not manage to move the cursor.
 777                 cur.undispatched();
 778                 break;
 779         }
 780
 781         case LFUN_MOUSE_DOUBLE:
 782         case LFUN_WORD_SELECT:
 783                 cur.pos() = 0;
 784                 cur.resetAnchor();
 785                 cur.selection(true);
 786                 cur.pos() = cur.lastpos();
 787                 cur.bv().cursor() = cur;
 788                 break;
 789
 790         case LFUN_MOUSE_TRIPLE:
 791                 cur.idx() = 0;
 792                 cur.pos() = 0;
 793                 cur.resetAnchor();
 794                 cur.selection(true);
 795                 cur.idx() = cur.lastidx();
 796                 cur.pos() = cur.lastpos();
 797                 cur.bv().cursor() = cur;
 798                 break;
 799
 800         case LFUN_LINE_BEGIN:
 801                 cur.screenUpdateFlags(Update::Decoration | Update::FitCursor);
 802                 // fall through
 803         case LFUN_LINE_BEGIN_SELECT:
 804                 cur.selHandle(act == LFUN_WORD_BACKWARD_SELECT ||
 805                                 act == LFUN_WORD_LEFT_SELECT ||
 806                                 act == LFUN_LINE_BEGIN_SELECT);
 807                 cur.macroModeClose();
 808                 if (cur.pos() != 0) {
 809                         cur.pos() = 0;
 810                 } else if (cur.col() != 0) {
 811                         cur.idx() -= cur.col();
 812                         cur.pos() = 0;
 813                 } else if (cur.idx() != 0) {
 814                         cur.idx() = 0;
 815                         cur.pos() = 0;
 816                 } else {
 817                         cmd = FuncRequest(LFUN_FINISHED_BACKWARD);
 818                         cur.undispatched();
 819                 }
 820                 break;
 821
 822         case LFUN_LINE_END:
 823                 cur.screenUpdateFlags(Update::Decoration | Update::FitCursor);
 824                 // fall through
 825         case LFUN_LINE_END_SELECT:
 826                 cur.selHandle(act == LFUN_WORD_FORWARD_SELECT ||
 827                                 act == LFUN_WORD_RIGHT_SELECT ||
 828                                 act == LFUN_LINE_END_SELECT);
 829                 cur.macroModeClose();
 830                 cur.clearTargetX();
 831                 if (cur.pos() != cur.lastpos()) {
 832                         cur.pos() = cur.lastpos();
 833                 } else if (ncols() && (cur.col() != cur.lastcol())) {
 834                         cur.idx() = cur.idx() - cur.col() + cur.lastcol();
 835                         cur.pos() = cur.lastpos();
 836                 } else if (cur.idx() != cur.lastidx()) {
 837                         cur.idx() = cur.lastidx();
 838                         cur.pos() = cur.lastpos();
 839                 } else {
 840                         cmd = FuncRequest(LFUN_FINISHED_FORWARD);
 841                         cur.undispatched();
 842                 }
 843                 break;
 844
 845         case LFUN_CELL_FORWARD:
 846                 cur.screenUpdateFlags(Update::Decoration | Update::FitCursor);
 847                 cur.inset().idxNext(cur);
 848                 break;
 849
 850         case LFUN_CELL_BACKWARD:
 851                 cur.screenUpdateFlags(Update::Decoration | Update::FitCursor);
 852                 cur.inset().idxPrev(cur);
 853                 break;
 854
 855         case LFUN_WORD_DELETE_BACKWARD:
 856         case LFUN_CHAR_DELETE_BACKWARD:
 857                 if (cur.pos() == 0)
 858                         // May affect external cell:
 859                         cur.recordUndoInset();
 860                 else if (!cur.inMacroMode())
 861                         cur.recordUndoSelection();
 862                 // if the inset can not be removed from within, delete it
 863                 if (!cur.backspace()) {
 864                         FuncRequest cmd = FuncRequest(LFUN_CHAR_DELETE_FORWARD);
 865                         cur.innerText()->dispatch(cur, cmd);
 866                 }
 867                 break;
 868
 869         case LFUN_WORD_DELETE_FORWARD:
 870         case LFUN_CHAR_DELETE_FORWARD:
 871                 if (cur.pos() == cur.lastpos())
 872                         // May affect external cell:
 873                         cur.recordUndoInset();
 874                 else
 875                         cur.recordUndoSelection();
 876                 // if the inset can not be removed from within, delete it
 877                 if (!cur.erase()) {
 878                         FuncRequest cmd = FuncRequest(LFUN_CHAR_DELETE_FORWARD);
 879                         cur.innerText()->dispatch(cur, cmd);
 880                 }
 881                 break;
 882
 883         case LFUN_ESCAPE:
 884                 if (cur.selection())
 885                         cur.clearSelection();
 886                 else  {
 887                         cmd = FuncRequest(LFUN_FINISHED_FORWARD);
 888                         cur.undispatched();
 889                 }
 890                 break;
 891
 892         // 'Locks' the math inset. A 'locked' math inset behaves as a unit
 893         // that is traversed by a single <CursorLeft>/<CursorRight>.
 894         case LFUN_INSET_TOGGLE:
 895                 cur.recordUndo();
 896                 lock(!lock());
 897                 cur.popForward();
 898                 break;
 899
 900         case LFUN_SELF_INSERT:
 901                 if (cmd.argument().size() != 1) {
 902                         cur.recordUndoSelection();
 903                         docstring const arg = cmd.argument();
 904                         if (!interpretString(cur, arg))
 905                                 cur.insert(arg);
 906                         break;
 907                 }
 908                 // Don't record undo steps if we are in macro mode and thus
 909                 // cmd.argument is the next character of the macro name.
 910                 // Otherwise we'll get an invalid cursor if we undo after
 911                 // the macro was finished and the macro is a known command,
 912                 // e.g. sqrt. Cursor::macroModeClose replaces in this case
 913                 // the InsetMathUnknown with name "frac" by an empty
 914                 // InsetMathFrac -> a pos value > 0 is invalid.
 915                 // A side effect is that an undo before the macro is finished
 916                 // undoes the complete macro, not only the last character.
 917                 // At the time we hit '\' we are not in macro mode, still.
 918                 if (!cur.inMacroMode())
 919                         cur.recordUndoSelection();
 920
 921                 // spacial handling of space. If we insert an inset
 922                 // via macro mode, we want to put the cursor inside it
 923                 // if relevant. Think typing "\frac<space>".
 924                 if (cmd.argument()[0] == ' '
 925                     && cur.inMacroMode() && cur.macroName() != "\\"
 926                     && cur.macroModeClose() && cur.pos() > 0) {
 927                         MathAtom const atom = cur.prevAtom();
 928                         if (atom->asNestInset() && atom->isActive()) {
 929                                 cur.posBackward();
 930                                 cur.pushBackward(*cur.nextInset());
 931                         }
 932                 } else if (!interpretChar(cur, cmd.argument()[0])) {
 933                         cmd = FuncRequest(LFUN_FINISHED_FORWARD);
 934                         cur.undispatched();
 935                 }
 936                 break;
 937
 938         //case LFUN_SERVER_GET_XY:
 939         //      break;
 940
 941         case LFUN_SERVER_SET_XY: {
 942                 lyxerr << "LFUN_SERVER_SET_XY broken!" << endl;
 943                 int x = 0;
 944                 int y = 0;
 945                 istringstream is(to_utf8(cmd.argument()));
 946                 is >> x >> y;
 947                 cur.setScreenPos(x, y);
 948                 break;
 949         }
 950
 951         // Special casing for superscript in case of LyX handling
 952         // dead-keys:
 953         case LFUN_ACCENT_CIRCUMFLEX:
 954                 if (cmd.argument().empty()) {
 955                         // do superscript if LyX handles
 956                         // deadkeys
 957                         cur.recordUndoSelection();
 958                         script(cur, true, grabAndEraseSelection(cur));
 959                 }
 960                 break;
 961
 962         case LFUN_ACCENT_UMLAUT:
 963         case LFUN_ACCENT_ACUTE:
 964         case LFUN_ACCENT_GRAVE:
 965         case LFUN_ACCENT_BREVE:
 966         case LFUN_ACCENT_DOT:
 967         case LFUN_ACCENT_MACRON:
 968         case LFUN_ACCENT_CARON:
 969         case LFUN_ACCENT_TILDE:
 970         case LFUN_ACCENT_CEDILLA:
 971         case LFUN_ACCENT_CIRCLE:
 972         case LFUN_ACCENT_UNDERDOT:
 973         case LFUN_ACCENT_TIE:
 974         case LFUN_ACCENT_OGONEK:
 975         case LFUN_ACCENT_HUNGARIAN_UMLAUT:
 976                 break;
 977
 978         //  Math fonts
 979         case LFUN_TEXTSTYLE_APPLY:
 980         case LFUN_TEXTSTYLE_UPDATE:
 981                 handleFont2(cur, cmd.argument());
 982                 break;
 983
 984         case LFUN_FONT_BOLD:
 985                 if (currentMode() != MATH_MODE)
 986                         handleFont(cur, cmd.argument(), "textbf");
 987                 else
 988                         handleFont(cur, cmd.argument(), "mathbf");
 989                 break;
 990         case LFUN_FONT_BOLDSYMBOL:
 991                 if (currentMode() != MATH_MODE)
 992                         handleFont(cur, cmd.argument(), "textbf");
 993                 else
 994                         handleFont(cur, cmd.argument(), "boldsymbol");
 995                 break;
 996         case LFUN_FONT_SANS:
 997                 if (currentMode() != MATH_MODE)
 998                         handleFont(cur, cmd.argument(), "textsf");
 999                 else
1000                         handleFont(cur, cmd.argument(), "mathsf");
1001                 break;
1002         case LFUN_FONT_EMPH:
1003                 if (currentMode() != MATH_MODE)
1004                         handleFont(cur, cmd.argument(), "emph");
1005                 else
1006                         handleFont(cur, cmd.argument(), "mathcal");
1007                 break;
1008         case LFUN_FONT_ROMAN:
1009                 if (currentMode() != MATH_MODE)
1010                         handleFont(cur, cmd.argument(), "textrm");
1011                 else
1012                         handleFont(cur, cmd.argument(), "mathrm");
1013                 break;
1014         case LFUN_FONT_TYPEWRITER:
1015                 if (currentMode() != MATH_MODE)
1016                         handleFont(cur, cmd.argument(), "texttt");
1017                 else
1018                         handleFont(cur, cmd.argument(), "mathtt");
1019                 break;
1020         case LFUN_FONT_FRAK:
1021                 handleFont(cur, cmd.argument(), "mathfrak");
1022                 break;
1023         case LFUN_FONT_ITAL:
1024                 if (currentMode() != MATH_MODE)
1025                         handleFont(cur, cmd.argument(), "textit");
1026                 else
1027                         handleFont(cur, cmd.argument(), "mathit");
1028                 break;
1029         case LFUN_FONT_NOUN:
1030                 if (currentMode() != MATH_MODE)
1031                         // FIXME: should be "noun"
1032                         handleFont(cur, cmd.argument(), "textsc");
1033                 else
1034                         handleFont(cur, cmd.argument(), "mathbb");
1035                 break;
1036         case LFUN_FONT_DEFAULT:
1037                 handleFont(cur, cmd.argument(), "textnormal");
1038                 break;
1039         case LFUN_FONT_UNDERLINE:
1040                 cur.recordUndo();
1041                 cur.handleNest(createInsetMath("underline", cur.buffer()));
1042                 break;
1043
1044         case LFUN_MATH_MODE: {
1045 #if 1
1046                 // ignore math-mode on when already in math mode
1047                 if (currentMode() == Inset::MATH_MODE && cmd.argument() == "on")
1048                         break;
1049                 cur.recordUndoSelection();
1050                 cur.macroModeClose();
1051                 docstring const save_selection = grabAndEraseSelection(cur);
1052                 selClearOrDel(cur);
1053                 if (currentMode() != Inset::MATH_MODE)
1054                         cur.plainInsert(MathAtom(new InsetMathEnsureMath(buffer_)));
1055                 else
1056                         cur.plainInsert(createInsetMath("text", buffer_));
1057                 cur.posBackward();
1058                 cur.pushBackward(*cur.nextInset());
1059                 cur.niceInsert(save_selection);
1060                 cur.forceBufferUpdate();
1061 #else
1062                 if (currentMode() == Inset::TEXT_MODE) {
1063                         cur.recordUndoSelection();
1064                         cur.niceInsert(MathAtom(new InsetMathHull("simple", cur.buffer())));
1065                         cur.message(_("create new math text environment ($...$)"));
1066                 } else {
1067                         handleFont(cur, cmd.argument(), "textrm");
1068                         cur.message(_("entered math text mode (textrm)"));
1069                 }
1070 #endif
1071                 break;
1072         }
1073
1074         case LFUN_REGEXP_MODE: {
1075                 InsetMath * im = cur.inset().asInsetMath();
1076                 if (im) {
1077                         InsetMathHull * i = im->asHullInset();
1078                         if (i && i->getType() == hullRegexp) {
1079                                 cur.message(_("Already in regular expression mode"));
1080                                 break;
1081                         }
1082                 }
1083                 cur.macroModeClose();
1084                 docstring const save_selection = grabAndEraseSelection(cur);
1085                 selClearOrDel(cur);
1086                 cur.plainInsert(MathAtom(new InsetMathHull(buffer_, hullRegexp)));
1087                 cur.posBackward();
1088                 cur.pushBackward(*cur.nextInset());
1089                 cur.niceInsert(save_selection);
1090                 cur.message(_("Regular expression editor mode"));
1091                 break;
1092         }
1093
1094         case LFUN_MATH_FONT_STYLE: {
1095                 FuncRequest fr = FuncRequest(LFUN_MATH_INSERT, '\\' + cmd.argument());
1096                 doDispatch(cur, fr);
1097                 break;
1098         }
1099
1100         case LFUN_MATH_SIZE: {
1101                 FuncRequest fr = FuncRequest(LFUN_MATH_INSERT, cmd.argument());
1102                 doDispatch(cur, fr);
1103                 break;
1104         }
1105
1106         case LFUN_MATH_MATRIX: {
1107                 cur.recordUndo();
1108                 unsigned int m = 1;
1109                 unsigned int n = 1;
1110                 docstring v_align;
1111                 docstring h_align;
1112                 idocstringstream is(cmd.argument());
1113                 is >> m >> n >> v_align >> h_align;
1114                 if (m < 1)
1115                         m = 1;
1116                 if (n < 1)
1117                         n = 1;
1118                 v_align += 'c';
1119                 cur.niceInsert(MathAtom(new InsetMathArray(buffer_,
1120                         from_ascii("array"), m, n, (char)v_align[0], h_align)));
1121                 break;
1122         }
1123
1124         case LFUN_MATH_AMS_MATRIX: {
1125                 cur.recordUndo();
1126                 unsigned int m = 1;
1127                 unsigned int n = 1;
1128                 docstring name = from_ascii("matrix");
1129                 idocstringstream is(cmd.argument());
1130                 is >> m >> n >> name;
1131                 if (m < 1)
1132                         m = 1;
1133                 if (n < 1)
1134                         n = 1;
1135                 // check if we have a valid decoration
1136                 if (name != "pmatrix" && name != "bmatrix"
1137                         && name != "Bmatrix" && name != "vmatrix"
1138                         && name != "Vmatrix" && name != "matrix")
1139                         name = from_ascii("matrix");
1140
1141                 cur.niceInsert(
1142                         MathAtom(new InsetMathAMSArray(buffer_, name, m, n)));
1143                 break;
1144         }
1145
1146         case LFUN_MATH_DELIM: {
1147                 docstring ls;
1148                 docstring rs = split(cmd.argument(), ls, ' ');
1149                 // Reasonable default values
1150                 if (ls.empty())
1151                         ls = '(';
1152                 if (rs.empty())
1153                         rs = ')';
1154                 cur.recordUndo();
1155                 cur.handleNest(MathAtom(new InsetMathDelim(buffer_, ls, rs)));
1156                 break;
1157         }
1158
1159         case LFUN_MATH_BIGDELIM: {
1160                 docstring const lname  = from_utf8(cmd.getArg(0));
1161                 docstring const ldelim = from_utf8(cmd.getArg(1));
1162                 docstring const rname  = from_utf8(cmd.getArg(2));
1163                 docstring const rdelim = from_utf8(cmd.getArg(3));
1164                 latexkeys const * l = in_word_set(lname);
1165                 bool const have_l = l && l->inset == "big" &&
1166                                     InsetMathBig::isBigInsetDelim(ldelim);
1167                 l = in_word_set(rname);
1168                 bool const have_r = l && l->inset == "big" &&
1169                                     InsetMathBig::isBigInsetDelim(rdelim);
1170                 // We mimic LFUN_MATH_DELIM in case we have an empty left
1171                 // or right delimiter.
1172                 if (have_l || have_r) {
1173                         cur.recordUndo();
1174                         docstring const selection = grabAndEraseSelection(cur);
1175                         selClearOrDel(cur);
1176                         if (have_l)
1177                                 cur.insert(MathAtom(new InsetMathBig(lname,
1178                                                                 ldelim)));
1179                         // first insert the right delimiter and then go back
1180                         // and re-insert the selection (bug 7088)
1181                         if (have_r) {
1182                                 cur.insert(MathAtom(new InsetMathBig(rname,
1183                                                                 rdelim)));
1184                                 cur.posBackward();
1185                         }
1186                         cur.niceInsert(selection);
1187                 }
1188                 // Don't call cur.undispatched() if we did nothing, this would
1189                 // lead to infinite recursion via Text::dispatch().
1190                 break;
1191         }
1192
1193         case LFUN_SPACE_INSERT: {
1194                 cur.recordUndoSelection();
1195                 string const name = cmd.getArg(0);
1196                 if (name == "normal")
1197                         cur.insert(MathAtom(new InsetMathSpace(" ", "")));
1198                 else if (name == "protected")
1199                         cur.insert(MathAtom(new InsetMathSpace("~", "")));
1200                 else if (name == "thin" || name == "med" || name == "thick")
1201                         cur.insert(MathAtom(new InsetMathSpace(name + "space", "")));
1202                 else if (name == "hfill*")
1203                         cur.insert(MathAtom(new InsetMathSpace("hspace*{\\fill}", "")));
1204                 else if (name == "quad" || name == "qquad" ||
1205                          name == "enspace" || name == "enskip" ||
1206                          name == "negthinspace" || name == "negmedspace" ||
1207                          name == "negthickspace" || name == "hfill")
1208                         cur.insert(MathAtom(new InsetMathSpace(name, "")));
1209                 else if (name == "hspace" || name == "hspace*") {
1210                         string const len = cmd.getArg(1);
1211                         if (len.empty() || !isValidLength(len)) {
1212                                 lyxerr << "LyX function 'space-insert " << name << "' "
1213                                           "needs a valid length argument." << endl;
1214                                 break;
1215                         }
1216                         cur.insert(MathAtom(new InsetMathSpace(name, len)));
1217                 } else
1218                         cur.insert(MathAtom(new InsetMathSpace));
1219                 break;
1220         }
1221
1222         case LFUN_MATH_SPACE:
1223                 cur.recordUndoSelection();
1224                 if (cmd.argument().empty())
1225                         cur.insert(MathAtom(new InsetMathSpace));
1226                 else {
1227                         string const name = cmd.getArg(0);
1228                         string const len = cmd.getArg(1);
1229                         cur.insert(MathAtom(new InsetMathSpace(name, len)));
1230                 }
1231                 break;
1232
1233         case LFUN_ERT_INSERT:
1234                 // interpret this as if a backslash was typed
1235                 cur.recordUndo();
1236                 interpretChar(cur, '\\');
1237                 break;
1238
1239         case LFUN_MATH_SUBSCRIPT:
1240                 // interpret this as if a _ was typed
1241                 cur.recordUndoSelection();
1242                 interpretChar(cur, '_');
1243                 break;
1244
1245         case LFUN_MATH_SUPERSCRIPT:
1246                 // interpret this as if a ^ was typed
1247                 cur.recordUndoSelection();
1248                 interpretChar(cur, '^');
1249                 break;
1250
1251         case LFUN_MATH_MACRO_FOLD:
1252         case LFUN_MATH_MACRO_UNFOLD: {
1253                 Cursor it = cur;
1254                 bool fold = act == LFUN_MATH_MACRO_FOLD;
1255                 bool found = findMacroToFoldUnfold(it, fold);
1256                 if (found) {
1257                         MathMacro * macro = it.nextInset()->asInsetMath()->asMacro();
1258                         cur.recordUndoInset();
1259                         if (fold)
1260                                 macro->fold(cur);
1261                         else
1262                                 macro->unfold(cur);
1263                 }
1264                 break;
1265         }
1266
1267         case LFUN_QUOTE_INSERT:
1268                 // interpret this as if a straight " was typed
1269                 cur.recordUndoSelection();
1270                 interpretChar(cur, '\"');
1271                 break;
1272
1273 // FIXME: We probably should swap parts of "math-insert" and "self-insert"
1274 // handling such that "self-insert" works on "arbitrary stuff" too, and
1275 // math-insert only handles special math things like "matrix".
1276         case LFUN_MATH_INSERT: {
1277                 cur.recordUndoSelection();
1278                 if (cmd.argument() == "^" || cmd.argument() == "_")
1279                         interpretChar(cur, cmd.argument()[0]);
1280                 else {
1281                         MathData ar;
1282                         asArray(cmd.argument(), ar);
1283                         if (cur.selection() && ar.size() == 1
1284                             && ar[0]->asNestInset()
1285                             && ar[0]->asNestInset()->nargs() > 1)
1286                                 handleNest(cur, ar[0]);
1287                         else
1288                                 cur.niceInsert(cmd.argument());
1289                 }
1290                 break;
1291         }
1292
1293         case LFUN_UNICODE_INSERT: {
1294                 if (cmd.argument().empty())
1295                         break;
1296                 docstring hexstring = cmd.argument();
1297                 if (isHex(hexstring)) {
1298                         char_type c = hexToInt(hexstring);
1299                         if (c >= 32 && c < 0x10ffff) {
1300                                 docstring s = docstring(1, c);
1301                                 FuncCode code = currentMode() == MATH_MODE ?
1302                                         LFUN_MATH_INSERT : LFUN_SELF_INSERT;
1303                                 lyx::dispatch(FuncRequest(code, s));
1304                         }
1305                 }
1306                 break;
1307         }
1308
1309         case LFUN_DIALOG_SHOW_NEW_INSET: {
1310                 docstring const & name = cmd.argument();
1311                 string data;
1312                 if (name == "ref") {
1313                         InsetMathRef tmp(buffer_, name);
1314                         data = tmp.createDialogStr();
1315                         cur.bv().showDialog(to_utf8(name), data);
1316                 } else if (name == "mathspace") {
1317                         cur.bv().showDialog(to_utf8(name));
1318                 }
1319                 break;
1320         }
1321
1322         case LFUN_INSET_INSERT: {
1323                 MathData ar;
1324                 if (createInsetMath_fromDialogStr(cmd.argument(), ar)) {
1325                         cur.recordUndoSelection();
1326                         cur.insert(ar);
1327                         cur.forceBufferUpdate();
1328                 } else
1329                         cur.undispatched();
1330                 break;
1331         }
1332         case LFUN_INSET_DISSOLVE:
1333                 if (!asHullInset()) {
1334                         cur.recordUndoInset();
1335                         cur.pullArg();
1336                 }
1337                 break;
1338
1339         default:
1340                 InsetMath::doDispatch(cur, cmd);
1341                 break;
1342         }
1343 }
1344
1345
1346 bool InsetMathNest::findMacroToFoldUnfold(Cursor & it, bool fold) const {
1347         // look for macro to open/close, but stay in mathed
1348         for (; !it.empty(); it.pop_back()) {
1349
1350                 // go backward through the current cell
1351                 Inset * inset = it.nextInset();
1352                 while (inset && inset->asInsetMath()) {
1353                         MathMacro * macro = inset->asInsetMath()->asMacro();
1354                         if (macro) {
1355                                 // found the an macro to open/close?
1356                                 if (macro->folded() != fold)
1357                                         return true;
1358
1359                                 // Wrong folding state.
1360                                 // If this was the first we see in this slice, look further left,
1361                                 // otherwise go up.
1362                                 if (inset != it.nextInset())
1363                                         break;
1364                         }
1365
1366                         // go up if this was the left most position
1367                         if (it.pos() == 0)
1368                                 break;
1369
1370                         // go left
1371                         it.pos()--;
1372                         inset = it.nextInset();
1373                 }
1374         }
1375
1376         return false;
1377 }
1378
1379
1380 bool InsetMathNest::getStatus(Cursor & cur, FuncRequest const & cmd,
1381                 FuncStatus & flag) const
1382 {
1383         // the font related toggles
1384         //string tc = "mathnormal";
1385         bool ret = true;
1386         string const arg = to_utf8(cmd.argument());
1387         switch (cmd.action()) {
1388         case LFUN_INSET_MODIFY:
1389                 flag.setEnabled(false);
1390                 break;
1391 #if 0
1392         case LFUN_INSET_MODIFY:
1393                 // FIXME: check temporarily disabled
1394                 // valign code
1395                 char align = mathcursor::valign();
1396                 if (align == '\0') {
1397                         enable = false;
1398                         break;
1399                 }
1400                 if (cmd.argument().empty()) {
1401                         flag.clear();
1402                         break;
1403                 }
1404                 if (!contains("tcb", cmd.argument()[0])) {
1405                         enable = false;
1406                         break;
1407                 }
1408                 flag.setOnOff(cmd.argument()[0] == align);
1409                 break;
1410 #endif
1411         /// We have to handle them since 1.4 blocks all unhandled actions
1412         case LFUN_FONT_ITAL:
1413         case LFUN_FONT_BOLD:
1414         case LFUN_FONT_BOLDSYMBOL:
1415         case LFUN_FONT_SANS:
1416         case LFUN_FONT_EMPH:
1417         case LFUN_FONT_TYPEWRITER:
1418         case LFUN_FONT_NOUN:
1419         case LFUN_FONT_ROMAN:
1420         case LFUN_FONT_DEFAULT:
1421                 flag.setEnabled(true);
1422                 break;
1423
1424         // we just need to be in math mode to enable that
1425         case LFUN_MATH_SIZE:
1426         case LFUN_MATH_SPACE:
1427         case LFUN_MATH_EXTERN:
1428                 flag.setEnabled(true);
1429                 break;
1430
1431         case LFUN_FONT_UNDERLINE:
1432         case LFUN_FONT_FRAK:
1433                 flag.setEnabled(currentMode() != TEXT_MODE);
1434                 break;
1435
1436         case LFUN_MATH_FONT_STYLE: {
1437                 bool const textarg =
1438                         arg == "textbf"   || arg == "textsf" ||
1439                         arg == "textrm"   || arg == "textmd" ||
1440                         arg == "textit"   || arg == "textsc" ||
1441                         arg == "textsl"   || arg == "textup" ||
1442                         arg == "texttt"   || arg == "textbb" ||
1443                         arg == "textnormal";
1444                 flag.setEnabled(currentMode() != TEXT_MODE || textarg);
1445                 break;
1446         }
1447
1448         case LFUN_MATH_MODE:
1449                 // forbid "math-mode on" in math mode to prevent irritating
1450                 // behaviour of menu entries (bug 6709)
1451                 flag.setEnabled(currentMode() == TEXT_MODE || arg != "on");
1452                 break;
1453
1454         case LFUN_MATH_INSERT:
1455                 flag.setEnabled(currentMode() != TEXT_MODE);
1456                 break;
1457
1458         case LFUN_MATH_AMS_MATRIX:
1459         case LFUN_MATH_MATRIX:
1460                 flag.setEnabled(currentMode() == MATH_MODE);
1461                 break;
1462
1463         case LFUN_INSET_INSERT: {
1464                 // Don't test createMathInset_fromDialogStr(), since
1465                 // getStatus is not called with a valid reference and the
1466                 // dialog would not be applyable.
1467                 string const name = cmd.getArg(0);
1468                 flag.setEnabled(name == "ref" || name == "mathspace");
1469                 break;
1470         }
1471
1472         case LFUN_DIALOG_SHOW_NEW_INSET: {
1473                 docstring const & name = cmd.argument();
1474                 if (name == "space")
1475                         flag.setEnabled(false);
1476                 break;
1477         }
1478
1479
1480         case LFUN_MATH_DELIM:
1481         case LFUN_MATH_BIGDELIM:
1482                 // Don't do this with multi-cell selections
1483                 flag.setEnabled(cur.selBegin().idx() == cur.selEnd().idx());
1484                 break;
1485
1486         case LFUN_MATH_MACRO_FOLD:
1487         case LFUN_MATH_MACRO_UNFOLD: {
1488                 Cursor it = cur;
1489                 bool found = findMacroToFoldUnfold(it, cmd.action() == LFUN_MATH_MACRO_FOLD);
1490                 flag.setEnabled(found);
1491                 break;
1492         }
1493
1494         case LFUN_SPECIALCHAR_INSERT:
1495         case LFUN_SCRIPT_INSERT:
1496                 // FIXME: These would probably make sense in math-text mode
1497                 flag.setEnabled(false);
1498                 break;
1499
1500         case LFUN_CAPTION_INSERT:
1501                 flag.setEnabled(false);
1502                 break;
1503
1504         case LFUN_SPACE_INSERT: {
1505                 docstring const & name = cmd.argument();
1506                 if (name == "visible")
1507                         flag.setEnabled(false);
1508                 break;
1509         }
1510
1511         case LFUN_INSET_DISSOLVE:
1512                 flag.setEnabled(!asHullInset());
1513                 break;
1514
1515         case LFUN_PASTE: {
1516                 docstring const & name = cmd.argument();
1517                 if (name == "html" || name == "latex")
1518                         flag.setEnabled(false);
1519                 break;
1520         }
1521
1522         default:
1523                 ret = false;
1524                 break;
1525         }
1526         return ret;
1527 }
1528
1529
1530 void InsetMathNest::edit(Cursor & cur, bool front, EntryDirection entry_from)
1531 {
1532         cur.push(*this);
1533         bool enter_front = (entry_from == Inset::ENTRY_DIRECTION_RIGHT ||
1534                 (entry_from == Inset::ENTRY_DIRECTION_IGNORE && front));
1535         cur.idx() = enter_front ? 0 : cur.lastidx();
1536         cur.pos() = enter_front ? 0 : cur.lastpos();
1537         cur.resetAnchor();
1538         //lyxerr << "InsetMathNest::edit, cur:\n" << cur << endl;
1539 }
1540
1541
1542 Inset * InsetMathNest::editXY(Cursor & cur, int x, int y)
1543 {
1544         int idx_min = 0;
1545         int dist_min = 1000000;
1546         for (idx_type i = 0, n = nargs(); i != n; ++i) {
1547                 int const d = cell(i).dist(cur.bv(), x, y);
1548                 if (d < dist_min) {
1549                         dist_min = d;
1550                         idx_min = i;
1551                 }
1552         }
1553         MathData & ar = cell(idx_min);
1554         cur.push(*this);
1555         cur.idx() = idx_min;
1556         cur.pos() = ar.x2pos(&cur.bv(), x - ar.xo(cur.bv()));
1557
1558         //lyxerr << "found cell : " << idx_min << " pos: " << cur.pos() << endl;
1559         if (dist_min == 0) {
1560                 // hit inside cell
1561                 for (pos_type i = 0, n = ar.size(); i < n; ++i)
1562                         if (ar[i]->covers(cur.bv(), x, y))
1563                                 return ar[i].nucleus()->editXY(cur, x, y);
1564         }
1565         return this;
1566 }
1567
1568
1569 void InsetMathNest::lfunMousePress(Cursor & cur, FuncRequest & cmd)
1570 {
1571         //lyxerr << "## lfunMousePress: buttons: " << cmd.button() << endl;
1572         BufferView & bv = cur.bv();
1573         if (cmd.button() == mouse_button::button3) {
1574                 // Don't do anything if we right-click a
1575                 // selection, a context menu will popup.
1576                 if (bv.cursor().selection() && cur >= bv.cursor().selectionBegin()
1577                       && cur < bv.cursor().selectionEnd()) {
1578                         cur.noScreenUpdate();
1579                         return;
1580                 }
1581         }
1582         bool do_selection = cmd.button() == mouse_button::button1
1583                 && cmd.modifier() == ShiftModifier;
1584         bv.mouseSetCursor(cur, do_selection);
1585         if (cmd.button() == mouse_button::button1) {
1586                 //lyxerr << "## lfunMousePress: setting cursor to: " << cur << endl;
1587                 // Update the cursor update flags as needed:
1588                 //
1589                 // Update::Decoration: tells to update the decoration
1590                 //                     (visual box corners that define
1591                 //                     the inset)/
1592                 // Update::FitCursor: adjust the screen to the cursor
1593                 //                    position if needed
1594                 // cur.result().update(): don't overwrite previously set flags.
1595                 cur.screenUpdateFlags(Update::Decoration | Update::FitCursor
1596                                 | cur.result().screenUpdate());
1597         } else if (cmd.button() == mouse_button::button2 && lyxrc.mouse_middlebutton_paste) {
1598                 if (cap::selection()) {
1599                         // See comment in Text::dispatch why we do this
1600                         cap::copySelectionToStack();
1601                         cmd = FuncRequest(LFUN_PASTE, "0");
1602                         doDispatch(bv.cursor(), cmd);
1603                 } else {
1604                         MathData ar;
1605                         asArray(theSelection().get(), ar);
1606                         bv.cursor().insert(ar);
1607                 }
1608         }
1609 }
1610
1611
1612 void InsetMathNest::lfunMouseMotion(Cursor & cur, FuncRequest & cmd)
1613 {
1614         // only select with button 1
1615         if (cmd.button() != mouse_button::button1)
1616                 return;
1617
1618         Cursor & bvcur = cur.bv().cursor();
1619
1620         // ignore motions deeper nested than the real anchor
1621         if (!bvcur.realAnchor().hasPart(cur)) {
1622                 cur.undispatched();
1623                 return;
1624         }
1625
1626         CursorSlice old = bvcur.top();
1627
1628         // We continue with our existing selection or start a new one, so don't
1629         // reset the anchor.
1630         bvcur.setCursor(cur);
1631         // Did we actually move?
1632         if (cur.top() == old)
1633                 // We didn't move one iota, so no need to change selection status
1634                 // or update the screen.
1635                 cur.screenUpdateFlags(Update::SinglePar | Update::FitCursor);
1636         else
1637                 bvcur.setSelection();
1638 }
1639
1640
1641 void InsetMathNest::lfunMouseRelease(Cursor & cur, FuncRequest & cmd)
1642 {
1643         //lyxerr << "## lfunMouseRelease: buttons: " << cmd.button() << endl;
1644
1645         if (cmd.button() == mouse_button::button1) {
1646                 if (!cur.selection())
1647                         cur.noScreenUpdate();
1648                 else {
1649                         Cursor & bvcur = cur.bv().cursor();
1650                         bvcur.selection(true);
1651                 }
1652                 return;
1653         }
1654
1655         cur.undispatched();
1656 }
1657
1658
1659 bool InsetMathNest::interpretChar(Cursor & cur, char_type const c)
1660 {
1661         //lyxerr << "interpret 2: '" << c << "'" << endl;
1662         docstring save_selection;
1663         if (c == '^' || c == '_')
1664                 save_selection = grabAndEraseSelection(cur);
1665
1666         cur.clearTargetX();
1667         Buffer * buf = cur.buffer();
1668
1669         // handle macroMode
1670         if (cur.inMacroMode()) {
1671                 docstring name = cur.macroName();
1672
1673                 /// are we currently typing '#1' or '#2' or...?
1674                 if (name == "\\#") {
1675                         cur.backspace();
1676                         int n = c - '0';
1677                         if (n >= 1 && n <= 9)
1678                                 cur.insert(new MathMacroArgument(n));
1679                         return true;
1680                 }
1681
1682                 // do not finish macro for known * commands
1683                 bool star_macro = c == '*'
1684                         && (in_word_set(name.substr(1) + '*')
1685                             || cur.buffer()->getMacro(name.substr(1) + "*", cur, true));
1686                 if (isAlphaASCII(c) || star_macro) {
1687                         cur.activeMacro()->setName(name + docstring(1, c));
1688                         return true;
1689                 }
1690
1691                 // handle 'special char' macros
1692                 if (name == "\\") {
1693                         // remove the '\\'
1694                         if (c == '\\') {
1695                                 cur.backspace();
1696                                 if (currentMode() != InsetMath::MATH_MODE)
1697                                         cur.niceInsert(createInsetMath("textbackslash", buf));
1698                                 else
1699                                         cur.niceInsert(createInsetMath("backslash", buf));
1700                         } else if (c == '^' && currentMode() == InsetMath::MATH_MODE) {
1701                                 cur.backspace();
1702                                 cur.niceInsert(createInsetMath("mathcircumflex", buf));
1703                         } else if (c == '{' || c == '%') {
1704                                 //using the saved selection as argument
1705                                 InsetMathUnknown * p = cur.activeMacro();
1706                                 p->finalize();
1707                                 MathData sel(cur.buffer());
1708                                 asArray(p->selection(), sel);
1709                                 cur.backspace();
1710                                 if (c == '{')
1711                                         cur.niceInsert(MathAtom(new InsetMathBrace(sel)));
1712                                 else
1713                                         cur.niceInsert(MathAtom(new InsetMathComment(sel)));
1714                         } else if (c == '#') {
1715                                 LASSERT(cur.activeMacro(), return false);
1716                                 cur.activeMacro()->setName(name + docstring(1, c));
1717                         } else {
1718                                 cur.backspace();
1719                                 cur.niceInsert(createInsetMath(docstring(1, c), buf));
1720                         }
1721                         return true;
1722                 }
1723
1724                 // One character big delimiters. The others are handled in
1725                 // interpretString().
1726                 latexkeys const * l = in_word_set(name.substr(1));
1727                 if (name[0] == '\\' && l && l->inset == "big") {
1728                         docstring delim;
1729                         switch (c) {
1730                         case '{':
1731                                 delim = from_ascii("\\{");
1732                                 break;
1733                         case '}':
1734                                 delim = from_ascii("\\}");
1735                                 break;
1736                         default:
1737                                 delim = docstring(1, c);
1738                                 break;
1739                         }
1740                         if (InsetMathBig::isBigInsetDelim(delim)) {
1741                                 // name + delim ared a valid InsetMathBig.
1742                                 // We can't use cur.macroModeClose() because
1743                                 // it does not handle delim.
1744                                 InsetMathUnknown * p = cur.activeMacro();
1745                                 p->finalize();
1746                                 --cur.pos();
1747                                 cur.cell().erase(cur.pos());
1748                                 cur.plainInsert(MathAtom(
1749                                         new InsetMathBig(name.substr(1), delim)));
1750                                 return true;
1751                         }
1752                 } else if (name == "\\smash" && c == '[') {
1753                         // We can't use cur.macroModeClose() because
1754                         // it would create an InsetMathPhantom
1755                         InsetMathUnknown * p = cur.activeMacro();
1756                         p->finalize();
1757                         interpretChar(cur, c);
1758                         return true;
1759                 }
1760
1761                 // leave macro mode and try again if necessary
1762                 if (cur.macroModeClose()) {
1763                         MathAtom const atom = cur.prevAtom();
1764                         if (atom->asNestInset() && atom->isActive()) {
1765                                 cur.posBackward();
1766                                 cur.pushBackward(*cur.nextInset());
1767                         }
1768                 }
1769                 if (c == '{')
1770                         cur.niceInsert(MathAtom(new InsetMathBrace(buf)));
1771                 else if (c != ' ')
1772                         interpretChar(cur, c);
1773                 return true;
1774         }
1775
1776
1777         // leave autocorrect mode if necessary
1778         if (lyxrc.autocorrection_math && c == ' ' && cur.autocorrect()) {
1779                 cur.autocorrect() = false;
1780                 cur.message(_("Autocorrect Off ('!' to enter)"));
1781                 return true;
1782         }
1783         if (lyxrc.autocorrection_math && c == '!' && !cur.autocorrect()) {
1784                 cur.autocorrect() = true;
1785                 cur.message(_("Autocorrect On (<space> to exit)"));
1786                 return true;
1787         }
1788
1789         // just clear selection on pressing the space bar
1790         if (cur.selection() && c == ' ') {
1791                 cur.selection(false);
1792                 return true;
1793         }
1794
1795         if (c == '\\') {
1796                 //lyxerr << "starting with macro" << endl;
1797                 bool reduced = cap::reduceSelectionToOneCell(cur);
1798                 if (reduced || !cur.selection()) {
1799                         cur.recordUndoInset();
1800                         docstring const safe = cap::grabAndEraseSelection(cur);
1801                         if (!cur.inRegexped())
1802                                 cur.insert(MathAtom(new InsetMathUnknown(from_ascii("\\"), safe, false)));
1803                         else
1804                                 cur.niceInsert(createInsetMath("backslash", buf));
1805                 }
1806                 return true;
1807         }
1808
1809         selClearOrDel(cur);
1810
1811         if (c == '\n') {
1812                 if (currentMode() != InsetMath::MATH_MODE)
1813                         cur.insert(c);
1814                 return true;
1815         }
1816
1817         if (c == ' ') {
1818                 if (currentMode() != InsetMath::MATH_MODE) {
1819                         // insert spaces in text or undecided mode,
1820                         // but suppress direct insertion of two spaces in a row
1821                         // the still allows typing  '<space>a<space>' and deleting the 'a', but
1822                         // it is better than nothing...
1823                         if (cur.pos() == 0 || cur.prevAtom()->getChar() != ' ') {
1824                                 cur.insert(c);
1825                                 // FIXME: we have to enable full redraw here because of the
1826                                 // visual box corners that define the inset. If we know for
1827                                 // sure that we stay within the same cell we can optimize for
1828                                 // that using:
1829                                 //cur.screenUpdateFlags(Update::SinglePar | Update::FitCursor);
1830                         }
1831                         return true;
1832                 }
1833                 if (cur.pos() != 0 && cur.prevAtom()->asSpaceInset()) {
1834                         cur.prevAtom().nucleus()->asSpaceInset()->incSpace();
1835                         // FIXME: we have to enable full redraw here because of the
1836                         // visual box corners that define the inset. If we know for
1837                         // sure that we stay within the same cell we can optimize for
1838                         // that using:
1839                         //cur.screenUpdateFlags(Update::SinglePar | Update::FitCursor);
1840                         return true;
1841                 }
1842
1843                 if (cur.popForward()) {
1844                         // FIXME: we have to enable full redraw here because of the
1845                         // visual box corners that define the inset. If we know for
1846                         // sure that we stay within the same cell we can optimize for
1847                         // that using:
1848                         //cur.screenUpdateFlags(Update::FitCursor);
1849                         return true;
1850                 }
1851
1852                 // if we are at the very end, leave the formula
1853                 return cur.pos() != cur.lastpos();
1854         }
1855
1856         // These should be treated differently when not in text mode:
1857         if (cur.inRegexped()) {
1858                 switch (c) {
1859                 case '^':
1860                         cur.niceInsert(createInsetMath("mathcircumflex", buf));
1861                         break;
1862                 case '{':
1863                 case '}':
1864                 case '#':
1865                 case '%':
1866                 case '_':
1867                         cur.niceInsert(createInsetMath(docstring(1, c), buf));
1868                         break;
1869                 case '~':
1870                         cur.niceInsert(createInsetMath("sim", buf));
1871                         break;
1872                 default:
1873                         cur.insert(c);
1874                 }
1875                 return true;
1876         } else if (currentMode() != InsetMath::TEXT_MODE) {
1877                 if (c == '_') {
1878                         script(cur, false, save_selection);
1879                         return true;
1880                 }
1881                 if (c == '^') {
1882                         script(cur, true, save_selection);
1883                         return true;
1884                 }
1885                 if (c == '~') {
1886                         cur.niceInsert(createInsetMath("sim", buf));
1887                         return true;
1888                 }
1889                 if (currentMode() == InsetMath::MATH_MODE && Encodings::isUnicodeTextOnly(c)) {
1890                         MathAtom at = createInsetMath("text", buf);
1891                         at.nucleus()->cell(0).push_back(MathAtom(new InsetMathChar(c)));
1892                         cur.niceInsert(at);
1893                         cur.posForward();
1894                         return true;
1895                 }
1896         } else {
1897                 if (c == '^') {
1898                         cur.niceInsert(createInsetMath("textasciicircum", buf));
1899                         return true;
1900                 }
1901                 if (c == '~') {
1902                         cur.niceInsert(createInsetMath("textasciitilde", buf));
1903                         return true;
1904                 }
1905         }
1906
1907         if (c == '{' || c == '}' || c == '&' || c == '$' || c == '#' ||
1908             c == '%' || c == '_') {
1909                 cur.niceInsert(createInsetMath(docstring(1, c), buf));
1910                 return true;
1911         }
1912
1913
1914         // try auto-correction
1915         if (lyxrc.autocorrection_math && cur.autocorrect() && cur.pos() != 0
1916                   && math_autocorrect(cur.prevAtom(), c))
1917                 return true;
1918
1919         // no special circumstances, so insert the character without any fuss
1920         cur.insert(c);
1921         if (lyxrc.autocorrection_math) {
1922                 if (!cur.autocorrect())
1923                         cur.message(_("Autocorrect Off ('!' to enter)"));
1924                 else
1925                         cur.message(_("Autocorrect On (<space> to exit)"));
1926         }
1927         return true;
1928 }
1929
1930
1931 bool InsetMathNest::interpretString(Cursor & cur, docstring const & str)
1932 {
1933         // Create a InsetMathBig from cur.cell()[cur.pos() - 1] and t if
1934         // possible
1935         if (!cur.empty() && cur.pos() > 0 &&
1936             cur.cell()[cur.pos() - 1]->asUnknownInset()) {
1937                 if (InsetMathBig::isBigInsetDelim(str)) {
1938                         docstring prev = asString(cur.cell()[cur.pos() - 1]);
1939                         if (prev[0] == '\\') {
1940                                 prev = prev.substr(1);
1941                                 latexkeys const * l = in_word_set(prev);
1942                                 if (l && l->inset == "big") {
1943                                         cur.cell()[cur.pos() - 1] =
1944                                                 MathAtom(new InsetMathBig(prev, str));
1945                                         return true;
1946                                 }
1947                         }
1948                 }
1949         }
1950         return false;
1951 }
1952
1953
1954 bool InsetMathNest::script(Cursor & cur, bool up)
1955 {
1956         return script(cur, up, docstring());
1957 }
1958
1959
1960 bool InsetMathNest::script(Cursor & cur, bool up,
1961                 docstring const & save_selection)
1962 {
1963         // Hack to get \^ and \_ working
1964         //lyxerr << "handling script: up: " << up << endl;
1965         if (cur.inMacroMode() && cur.macroName() == "\\") {
1966                 if (up)
1967                         cur.niceInsert(createInsetMath("mathcircumflex", cur.buffer()));
1968                 else
1969                         interpretChar(cur, '_');
1970                 return true;
1971         }
1972
1973         cur.macroModeClose();
1974         if (asScriptInset() && cur.idx() == 0) {
1975                 // we are in a nucleus of a script inset, move to _our_ script
1976                 InsetMathScript * inset = asScriptInset();
1977                 //lyxerr << " going to cell " << inset->idxOfScript(up) << endl;
1978                 inset->ensure(up);
1979                 cur.idx() = inset->idxOfScript(up);
1980                 cur.pos() = 0;
1981         } else if (cur.pos() != 0 && cur.prevAtom()->asScriptInset()) {
1982                 --cur.pos();
1983                 InsetMathScript * inset = cur.nextAtom().nucleus()->asScriptInset();
1984                 cur.push(*inset);
1985                 inset->ensure(up);
1986                 cur.idx() = inset->idxOfScript(up);
1987                 cur.pos() = cur.lastpos();
1988         } else {
1989                 // convert the thing to our left to a scriptinset or create a new
1990                 // one if in the very first position of the array
1991                 if (cur.pos() == 0) {
1992                         //lyxerr << "new scriptinset" << endl;
1993                         cur.insert(new InsetMathScript(buffer_, up));
1994                 } else {
1995                         //lyxerr << "converting prev atom " << endl;
1996                         cur.prevAtom() = MathAtom(new InsetMathScript(buffer_, cur.prevAtom(), up));
1997                 }
1998                 --cur.pos();
1999                 InsetMathScript * inset = cur.nextAtom().nucleus()->asScriptInset();
2000                 // See comment in MathParser.cpp for special handling of {}-bases
2001
2002                 cur.push(*inset);
2003                 cur.idx() = 1;
2004                 cur.pos() = 0;
2005         }
2006         //lyxerr << "inserting selection 1:\n" << save_selection << endl;
2007         cur.niceInsert(save_selection);
2008         cur.resetAnchor();
2009         //lyxerr << "inserting selection 2:\n" << save_selection << endl;
2010         return true;
2011 }
2012
2013
2014 bool InsetMathNest::completionSupported(Cursor const & cur) const
2015 {
2016         return cur.inMacroMode();
2017 }
2018
2019
2020 bool InsetMathNest::inlineCompletionSupported(Cursor const & cur) const
2021 {
2022         return cur.inMacroMode();
2023 }
2024
2025
2026 bool InsetMathNest::automaticInlineCompletion() const
2027 {
2028         return lyxrc.completion_inline_math;
2029 }
2030
2031
2032 bool InsetMathNest::automaticPopupCompletion() const
2033 {
2034         return lyxrc.completion_popup_math;
2035 }
2036
2037
2038 CompletionList const *
2039 InsetMathNest::createCompletionList(Cursor const & cur) const
2040 {
2041         if (!cur.inMacroMode())
2042                 return 0;
2043
2044         return new MathCompletionList(cur);
2045 }
2046
2047
2048 docstring InsetMathNest::completionPrefix(Cursor const & cur) const
2049 {
2050         if (!cur.inMacroMode())
2051                 return docstring();
2052
2053         return cur.activeMacro()->name();
2054 }
2055
2056
2057 bool InsetMathNest::insertCompletion(Cursor & cur, docstring const & s,
2058                                      bool finished)
2059 {
2060         if (!cur.inMacroMode())
2061                 return false;
2062
2063         // append completion to active macro
2064         InsetMathUnknown * inset = cur.activeMacro();
2065         inset->setName(inset->name() + s);
2066
2067         // finish macro
2068         if (finished) {
2069 #if 0
2070                 // FIXME: this creates duplicates in the completion popup
2071                 // which looks ugly. Moreover the changes the list lengths
2072                 // which seems to
2073                 confuse the popup as well.
2074                 MathCompletionList::addToFavorites(inset->name());
2075 #endif
2076                 lyx::dispatch(FuncRequest(LFUN_SELF_INSERT, " "));
2077         }
2078
2079         return true;
2080 }
2081
2082
2083 void InsetMathNest::completionPosAndDim(Cursor const & cur, int & x, int & y,
2084                                         Dimension & dim) const
2085 {
2086         Inset const * inset = cur.activeMacro();
2087         if (!inset)
2088                 return;
2089
2090         // get inset dimensions
2091         dim = cur.bv().coordCache().insets().dim(inset);
2092         // FIXME: these 3 are no accurate, but should depend on the font.
2093         // Now the popup jumps down if you enter a char with descent > 0.
2094         dim.des += 3;
2095         dim.asc += 3;
2096
2097         // and position
2098         Point xy = cur.bv().coordCache().insets().xy(inset);
2099         x = xy.x_;
2100         y = xy.y_;
2101 }
2102
2103
2104 ////////////////////////////////////////////////////////////////////
2105
2106 MathCompletionList::MathCompletionList(Cursor const & cur)
2107 {
2108         // fill it with macros from the buffer
2109         MacroNameSet macros;
2110         cur.buffer()->listMacroNames(macros);
2111         MacroNameSet::const_iterator it;
2112         for (it = macros.begin(); it != macros.end(); ++it) {
2113                 if (cur.buffer()->getMacro(*it, cur, false))
2114                         locals.push_back("\\" + *it);
2115         }
2116         sort(locals.begin(), locals.end());
2117
2118         if (!globals.empty())
2119                 return;
2120
2121         // fill in global macros
2122         macros.clear();
2123         MacroTable::globalMacros().getMacroNames(macros, false);
2124         //lyxerr << "Globals completion macros: ";
2125         for (it = macros.begin(); it != macros.end(); ++it) {
2126                 //lyxerr << "\\" + *it << " ";
2127                 globals.push_back("\\" + *it);
2128         }
2129         //lyxerr << std::endl;
2130
2131         // fill in global commands
2132         globals.push_back(from_ascii("\\boxed"));
2133         globals.push_back(from_ascii("\\fbox"));
2134         globals.push_back(from_ascii("\\framebox"));
2135         globals.push_back(from_ascii("\\makebox"));
2136         globals.push_back(from_ascii("\\kern"));
2137         globals.push_back(from_ascii("\\xhookrightarrow"));
2138         globals.push_back(from_ascii("\\xhookleftarrow"));
2139         globals.push_back(from_ascii("\\xrightarrow"));
2140         globals.push_back(from_ascii("\\xRightarrow"));
2141         globals.push_back(from_ascii("\\xrightharpoondown"));
2142         globals.push_back(from_ascii("\\xrightharpoonup"));
2143         globals.push_back(from_ascii("\\xrightleftharpoons"));
2144         globals.push_back(from_ascii("\\xleftarrow"));
2145         globals.push_back(from_ascii("\\xLeftarrow"));
2146         globals.push_back(from_ascii("\\xleftharpoondown"));
2147         globals.push_back(from_ascii("\\xleftharpoonup"));
2148         globals.push_back(from_ascii("\\xleftrightarrow"));
2149         globals.push_back(from_ascii("\\xLeftrightarrow"));
2150         globals.push_back(from_ascii("\\xleftrightharpoons"));
2151         globals.push_back(from_ascii("\\xmapsto"));
2152         globals.push_back(from_ascii("\\split"));
2153         globals.push_back(from_ascii("\\gathered"));
2154         globals.push_back(from_ascii("\\aligned"));
2155         globals.push_back(from_ascii("\\alignedat"));
2156         globals.push_back(from_ascii("\\cases"));
2157         globals.push_back(from_ascii("\\substack"));
2158         globals.push_back(from_ascii("\\xymatrix"));
2159         globals.push_back(from_ascii("\\Diagram"));
2160         globals.push_back(from_ascii("\\subarray"));
2161         globals.push_back(from_ascii("\\array"));
2162         globals.push_back(from_ascii("\\sqrt"));
2163         globals.push_back(from_ascii("\\root"));
2164         globals.push_back(from_ascii("\\tabular"));
2165         globals.push_back(from_ascii("\\sideset"));
2166         globals.push_back(from_ascii("\\stackrel"));
2167         globals.push_back(from_ascii("\\stackrelthree"));
2168         globals.push_back(from_ascii("\\binom"));
2169         globals.push_back(from_ascii("\\choose"));
2170         globals.push_back(from_ascii("\\brace"));
2171         globals.push_back(from_ascii("\\brack"));
2172         globals.push_back(from_ascii("\\frac"));
2173         globals.push_back(from_ascii("\\over"));
2174         globals.push_back(from_ascii("\\nicefrac"));
2175         globals.push_back(from_ascii("\\unitfrac"));
2176         globals.push_back(from_ascii("\\unitfracthree"));
2177         globals.push_back(from_ascii("\\unitone"));
2178         globals.push_back(from_ascii("\\unittwo"));
2179         globals.push_back(from_ascii("\\infer"));
2180         globals.push_back(from_ascii("\\atop"));
2181         globals.push_back(from_ascii("\\lefteqn"));
2182         globals.push_back(from_ascii("\\boldsymbol"));
2183         globals.push_back(from_ascii("\\bm"));
2184         globals.push_back(from_ascii("\\color"));
2185         globals.push_back(from_ascii("\\normalcolor"));
2186         globals.push_back(from_ascii("\\textcolor"));
2187         globals.push_back(from_ascii("\\cfrac"));
2188         globals.push_back(from_ascii("\\cfracleft"));
2189         globals.push_back(from_ascii("\\cfracright"));
2190         globals.push_back(from_ascii("\\dfrac"));
2191         globals.push_back(from_ascii("\\tfrac"));
2192         globals.push_back(from_ascii("\\dbinom"));
2193         globals.push_back(from_ascii("\\tbinom"));
2194         globals.push_back(from_ascii("\\hphantom"));
2195         globals.push_back(from_ascii("\\phantom"));
2196         globals.push_back(from_ascii("\\vphantom"));
2197         globals.push_back(from_ascii("\\cancel"));
2198         globals.push_back(from_ascii("\\bcancel"));
2199         globals.push_back(from_ascii("\\xcancel"));
2200         globals.push_back(from_ascii("\\cancelto"));
2201         globals.push_back(from_ascii("\\smash"));
2202         globals.push_back(from_ascii("\\mathclap"));
2203         globals.push_back(from_ascii("\\mathllap"));
2204         globals.push_back(from_ascii("\\mathrlap"));
2205         globals.push_back(from_ascii("\\ensuremath"));
2206         MathWordList const & words = mathedWordList();
2207         MathWordList::const_iterator it2;
2208         //lyxerr << "Globals completion commands: ";
2209         for (it2 = words.begin(); it2 != words.end(); ++it2) {
2210                 if (it2->second.inset != "macro" && !it2->second.hidden) {
2211                         // macros are already read from MacroTable::globalMacros()
2212                         globals.push_back('\\' + it2->first);
2213                         //lyxerr << '\\' + it2->first << ' ';
2214                 }
2215         }
2216         //lyxerr << std::endl;
2217         sort(globals.begin(), globals.end());
2218 }
2219
2220
2221 MathCompletionList::~MathCompletionList()
2222 {
2223 }
2224
2225
2226 size_type MathCompletionList::size() const
2227 {
2228         return locals.size() + globals.size();
2229 }
2230
2231
2232 docstring const & MathCompletionList::data(size_t idx) const
2233 {
2234         size_t lsize = locals.size();
2235         if (idx >= lsize)
2236                 return globals[idx - lsize];
2237         else
2238                 return locals[idx];
2239 }
2240
2241
2242 std::string MathCompletionList::icon(size_t idx) const
2243 {
2244         // get the latex command
2245         docstring cmd;
2246         size_t lsize = locals.size();
2247         if (idx >= lsize)
2248                 cmd = globals[idx - lsize];
2249         else
2250                 cmd = locals[idx];
2251
2252         // get the icon resource name by stripping the backslash
2253         docstring icon_name = frontend::Application::mathIcon(cmd.substr(1));
2254         if (icon_name.empty())
2255                 return std::string();
2256         return "images/math/" + to_utf8(icon_name);
2257 }
2258
2259 std::vector<docstring> MathCompletionList::globals;
2260
2261 } // namespace lyx