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