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