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