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