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 "InsetMathMacro.h"
  36 #include "InsetMathMacroArgument.h"
  37 #include "MathParser.h"
  38 #include "MathStream.h"
  39 #include "MathSupport.h"
  40
  41 #include "Buffer.h"
  42 #include "BufferParams.h"
  43 #include "BufferView.h"
  44 #include "CoordCache.h"
  45 #include "Cursor.h"
  46 #include "CutAndPaste.h"
  47 #include "DispatchResult.h"
  48 #include "Encoding.h"
  49 #include "FuncRequest.h"
  50 #include "FuncStatus.h"
  51 #include "LaTeXFeatures.h"
  52 #include "LyX.h"
  53 #include "LyXRC.h"
  54 #include "MetricsInfo.h"
  55 #include "OutputParams.h"
  56 #include "TexRow.h"
  57 #include "Text.h"
  58
  59 #include "frontends/Application.h"
  60 #include "frontends/Clipboard.h"
  61 #include "frontends/Painter.h"
  62 #include "frontends/Selection.h"
  63
  64 #include "support/debug.h"
  65 #include "support/docstream.h"
  66 #include "support/gettext.h"
  67 #include "support/lassert.h"
  68 #include "support/lstrings.h"
  69 #include "support/textutils.h"
  70
  71 #include <algorithm>
  72 #include <sstream>
  73
  74 using namespace std;
  75 using namespace lyx::support;
  76
  77 namespace lyx {
  78
  79 using cap::copySelection;
  80 using cap::grabAndEraseSelection;
  81 using cap::cutSelection;
  82 using cap::replaceSelection;
  83 using cap::selClearOrDel;
  84
  85
  86 InsetMathNest::InsetMathNest(Buffer * buf, idx_type nargs)
  87         : InsetMath(buf), cells_(nargs), lock_(false)
  88 {
  89         setBuffer(*buf);
  90 }
  91
  92
  93 InsetMathNest::InsetMathNest(InsetMathNest const & inset)
  94         : InsetMath(inset), cells_(inset.cells_), lock_(inset.lock_)
  95 {}
  96
  97
  98 InsetMathNest::~InsetMathNest()
  99 {
 100         map<BufferView const *, bool>::iterator it = mouse_hover_.begin();
 101         map<BufferView const *, bool>::iterator end = mouse_hover_.end();
 102         for (; it != end; ++it)
 103                 if (it->second)
 104                         it->first->clearLastInset(this);
 105 }
 106
 107
 108 InsetMathNest & InsetMathNest::operator=(InsetMathNest const & inset)
 109 {
 110         cells_ = inset.cells_;
 111         lock_ = inset.lock_;
 112         mouse_hover_.clear();
 113         InsetMath::operator=(inset);
 114         return *this;
 115 }
 116
 117
 118 void InsetMathNest::setBuffer(Buffer & buffer)
 119 {
 120         InsetMath::setBuffer(buffer);
 121         for (MathData & data : cells_)
 122                 data.setBuffer(buffer);
 123 }
 124
 125
 126 InsetMath::idx_type InsetMathNest::nargs() const
 127 {
 128         return cells_.size();
 129 }
 130
 131
 132 void InsetMathNest::cursorPos(BufferView const & bv,
 133                 CursorSlice const & sl, bool /*boundary*/,
 134                 int & x, int & y) const
 135 {
 136 // FIXME: This is a hack. Ideally, the coord cache should not store
 137 // absolute positions, but relative ones. This would mean to call
 138 // setXY() not in MathData::draw(), but in the parent insets' draw()
 139 // with the correctly adjusted x,y values. But this means that we'd have
 140 // to touch all (math)inset's draw() methods. Right now, we'll store
 141 // absolute value, and make them here relative, only to make them
 142 // absolute again when actually drawing the cursor. What a mess.
 143         LASSERT(&sl.inset() == this, return);
 144         MathData const & ar = sl.cell();
 145         CoordCache const & coord_cache = bv.coordCache();
 146         if (!coord_cache.getArrays().has(&ar)) {
 147                 // this can (semi-)legally happen if we just created this cell
 148                 // and it never has been drawn before. So don't ASSERT.
 149                 //lyxerr << "no cached data for array " << &ar << endl;
 150                 x = 0;
 151                 y = 0;
 152                 return;
 153         }
 154         Point const pt = coord_cache.getArrays().xy(&ar);
 155         if (!coord_cache.getInsets().has(this)) {
 156                 // same as above
 157                 //lyxerr << "no cached data for inset " << this << endl;
 158                 x = 0;
 159                 y = 0;
 160                 return;
 161         }
 162         Point const pt2 = coord_cache.getInsets().xy(this);
 163         //lyxerr << "retrieving position cache for MathData "
 164         //      << pt.x_ << ' ' << pt.y_ << endl;
 165         x = pt.x_ - pt2.x_ + ar.pos2x(&bv, sl.pos());
 166         y = pt.y_ - pt2.y_;
 167 //      lyxerr << "pt.y_ : " << pt.y_ << " pt2_.y_ : " << pt2.y_
 168 //              << " asc: " << ascent() << "  des: " << descent()
 169 //              << " ar.asc: " << ar.ascent() << " ar.des: " << ar.descent() << endl;
 170         // move cursor visually into empty cells ("blue rectangles");
 171         if (ar.empty()) {
 172                 Dimension const dim = coord_cache.getArrays().dim(&ar);
 173                 x += dim.wid / 3;
 174         }
 175 }
 176
 177
 178 void InsetMathNest::cellsMetrics(MetricsInfo const & mi) const
 179 {
 180         MetricsInfo m = mi;
 181         for (auto const & cell : cells_) {
 182                 Dimension dim;
 183                 cell.metrics(m, dim);
 184         }
 185 }
 186
 187
 188 void InsetMathNest::updateBuffer(ParIterator const & it, UpdateType utype)
 189 {
 190         for (idx_type i = 0, n = nargs(); i != n; ++i)
 191                 cell(i).updateBuffer(it, utype);
 192 }
 193
 194
 195
 196 bool InsetMathNest::idxNext(Cursor & cur) const
 197 {
 198         LASSERT(&cur.inset() == this, return false);
 199         if (cur.idx() == cur.lastidx())
 200                 return false;
 201         ++cur.idx();
 202         cur.pos() = 0;
 203         return true;
 204 }
 205
 206
 207 bool InsetMathNest::idxForward(Cursor & cur) const
 208 {
 209         return idxNext(cur);
 210 }
 211
 212
 213 bool InsetMathNest::idxPrev(Cursor & cur) const
 214 {
 215         LASSERT(&cur.inset() == this, return false);
 216         if (cur.idx() == 0)
 217                 return false;
 218         --cur.idx();
 219         cur.pos() = lyxrc.mac_like_cursor_movement ? cur.lastpos() : 0;
 220         return true;
 221 }
 222
 223
 224 bool InsetMathNest::idxBackward(Cursor & cur) const
 225 {
 226         return idxPrev(cur);
 227 }
 228
 229
 230 bool InsetMathNest::idxFirst(Cursor & cur) const
 231 {
 232         LASSERT(&cur.inset() == this, return false);
 233         if (nargs() == 0)
 234                 return false;
 235         cur.idx() = firstIdx();
 236         cur.pos() = 0;
 237         return true;
 238 }
 239
 240
 241 bool InsetMathNest::idxLast(Cursor & cur) const
 242 {
 243         LASSERT(&cur.inset() == this, return false);
 244         if (nargs() == 0)
 245                 return false;
 246         cur.idx() = lastIdx();
 247         cur.pos() = cur.lastpos();
 248         return true;
 249 }
 250
 251
 252 void InsetMathNest::dump() const
 253 {
 254         odocstringstream oss;
 255         otexrowstream ots(oss);
 256         WriteStream os(ots);
 257         os << "---------------------------------------------\n";
 258         write(os);
 259         os << "\n";
 260         for (idx_type i = 0, n = nargs(); i != n; ++i)
 261                 os << cell(i) << "\n";
 262         os << "---------------------------------------------\n";
 263         lyxerr << to_utf8(oss.str());
 264 }
 265
 266
 267 void InsetMathNest::draw(PainterInfo &, int, int) const
 268 {
 269 #if 0
 270         if (lock_)
 271                 pi.pain.fillRectangle(x, y - ascent(), width(), height(),
 272                                         Color_mathlockbg);
 273 #endif
 274 }
 275
 276
 277 void InsetMathNest::validate(LaTeXFeatures & features) const
 278 {
 279         for (idx_type i = 0; i < nargs(); ++i)
 280                 cell(i).validate(features);
 281 }
 282
 283
 284 void InsetMathNest::replace(ReplaceData & rep)
 285 {
 286         for (idx_type i = 0; i < nargs(); ++i)
 287                 cell(i).replace(rep);
 288 }
 289
 290
 291 bool InsetMathNest::contains(MathData const & ar) const
 292 {
 293         for (idx_type i = 0; i < nargs(); ++i)
 294                 if (cell(i).contains(ar))
 295                         return true;
 296         return false;
 297 }
 298
 299
 300 bool InsetMathNest::lock() const
 301 {
 302         return lock_;
 303 }
 304
 305
 306 void InsetMathNest::lock(bool l)
 307 {
 308         lock_ = l;
 309 }
 310
 311
 312 bool InsetMathNest::isActive() const
 313 {
 314         return nargs() > 0;
 315 }
 316
 317
 318 MathData InsetMathNest::glue() const
 319 {
 320         MathData ar;
 321         for (size_t i = 0; i < nargs(); ++i)
 322                 ar.append(cell(i));
 323         return ar;
 324 }
 325
 326
 327 void InsetMathNest::write(WriteStream & os) const
 328 {
 329         MathEnsurer ensurer(os, currentMode() == MATH_MODE);
 330         ModeSpecifier specifier(os, currentMode(), lockedMode());
 331         docstring const latex_name = name();
 332         os << '\\' << latex_name;
 333         for (size_t i = 0; i < nargs(); ++i) {
 334                 Changer dummy = os.changeRowEntry(TexRow::mathEntry(id(),i));
 335                 os << '{' << cell(i) << '}';
 336         }
 337         if (nargs() == 0)
 338                 os.pendingSpace(true);
 339         if (lock_ && !os.latex()) {
 340                 os << "\\lyxlock";
 341                 os.pendingSpace(true);
 342         }
 343 }
 344
 345
 346 void InsetMathNest::normalize(NormalStream & os) const
 347 {
 348         os << '[' << name();
 349         for (size_t i = 0; i < nargs(); ++i)
 350                 os << ' ' << cell(i);
 351         os << ']';
 352 }
 353
 354
 355 void InsetMathNest::latex(otexstream & os, OutputParams const & runparams) const
 356 {
 357         WriteStream wi(os, runparams.moving_arg, true,
 358                         runparams.dryrun ? WriteStream::wsDryrun : WriteStream::wsDefault,
 359                         runparams.encoding);
 360         wi.strikeoutMath(runparams.inDeletedInset);
 361         if (runparams.inulemcmd) {
 362                 wi.ulemCmd(WriteStream::UNDERLINE);
 363                 if (runparams.local_font) {
 364                         FontInfo f = runparams.local_font->fontInfo();
 365                         if (f.strikeout() == FONT_ON)
 366                                 wi.ulemCmd(WriteStream::STRIKEOUT);
 367                 }
 368         }
 369         wi.canBreakLine(os.canBreakLine());
 370         Changer dummy = wi.changeRowEntry(TexRow::textEntry(runparams.lastid,
 371                                                             runparams.lastpos));
 372         write(wi);
 373         // Reset parbreak and command termination status after a math inset.
 374         os.lastChar(0);
 375         os.canBreakLine(wi.canBreakLine());
 376         os.terminateCommand(false);
 377 }
 378
 379
 380 bool InsetMathNest::setMouseHover(BufferView const * bv, bool mouse_hover)
 381         const
 382 {
 383         mouse_hover_[bv] = mouse_hover;
 384         return true;
 385 }
 386
 387
 388 bool InsetMathNest::notifyCursorLeaves(Cursor const & /*old*/, Cursor & /*cur*/)
 389 {
 390         // FIXME: look here
 391 #if 0
 392         MathData & ar = cur.cell();
 393         // remove base-only "scripts"
 394         for (pos_type i = 0; i + 1 < ar.size(); ++i) {
 395                 InsetMathScript * p = operator[](i).nucleus()->asScriptInset();
 396                 if (p && p->nargs() == 1) {
 397                         MathData ar = p->nuc();
 398                         erase(i);
 399                         insert(i, ar);
 400                         cur.adjust(i, ar.size() - 1);
 401                 }
 402         }
 403
 404         // glue adjacent font insets of the same kind
 405         for (pos_type i = 0; i + 1 < size(); ++i) {
 406                 InsetMathFont * p = operator[](i).nucleus()->asFontInset();
 407                 InsetMathFont const * q = operator[](i + 1)->asFontInset();
 408                 if (p && q && p->name() == q->name()) {
 409                         p->cell(0).append(q->cell(0));
 410                         erase(i + 1);
 411                         cur.adjust(i, -1);
 412                 }
 413         }
 414 #endif
 415         return false;
 416 }
 417
 418
 419 void InsetMathNest::handleFont
 420         (Cursor & cur, docstring const & arg, char const * const font)
 421 {
 422         handleFont(cur, arg, from_ascii(font));
 423 }
 424
 425
 426 void InsetMathNest::handleFont(Cursor & cur, docstring const & arg,
 427         docstring const & font)
 428 {
 429         cur.recordUndoSelection();
 430
 431         // this whole function is a hack and won't work for incremental font
 432         // changes...
 433         if (cur.inset().asInsetMath()->name() == font)
 434                 cur.handleFont(to_utf8(font));
 435         else
 436                 handleNest(cur, createInsetMath(font, cur.buffer()), arg);
 437 }
 438
 439
 440 void InsetMathNest::handleNest(Cursor & cur, MathAtom const & nest)
 441 {
 442         handleNest(cur, nest, docstring());
 443 }
 444
 445
 446 void InsetMathNest::handleNest(Cursor & cur, MathAtom const & nest,
 447         docstring const & arg)
 448 {
 449         CursorSlice i1 = cur.selBegin();
 450         CursorSlice i2 = cur.selEnd();
 451         if (!i1.inset().asInsetMath())
 452                 return;
 453         if (i1.idx() == i2.idx()) {
 454                 // the easy case where only one cell is selected
 455                 cur.handleNest(nest);
 456                 cur.insert(arg);
 457                 return;
 458         }
 459
 460         // multiple selected cells in a simple non-grid inset
 461         if (i1.asInsetMath()->nrows() == 0 || i1.asInsetMath()->ncols() == 0) {
 462                 for (idx_type i = i1.idx(); i <= i2.idx(); ++i) {
 463                         // select cell
 464                         cur.idx() = i;
 465                         cur.pos() = 0;
 466                         cur.resetAnchor();
 467                         cur.pos() = cur.lastpos();
 468                         cur.setSelection();
 469
 470                         // change font of cell
 471                         cur.handleNest(nest);
 472                         cur.insert(arg);
 473
 474                         // cur is in the font inset now. If the loop continues,
 475                         // we need to get outside again for the next cell
 476                         if (i + 1 <= i2.idx())
 477                                 cur.pop_back();
 478                 }
 479                 return;
 480         }
 481
 482         // the complicated case with multiple selected cells in a grid
 483         row_type r1, r2;
 484         col_type c1, c2;
 485         cap::region(i1, i2, r1, r2, c1, c2);
 486         for (row_type row = r1; row <= r2; ++row) {
 487                 for (col_type col = c1; col <= c2; ++col) {
 488                         // select cell
 489                         cur.idx() = i1.asInsetMath()->index(row, col);
 490                         cur.pos() = 0;
 491                         cur.resetAnchor();
 492                         cur.pos() = cur.lastpos();
 493                         cur.setSelection();
 494
 495                         //
 496                         cur.handleNest(nest);
 497                         cur.insert(arg);
 498
 499                         // cur is in the font inset now. If the loop continues,
 500                         // we need to get outside again for the next cell
 501                         if (col + 1 <= c2 || row + 1 <= r2)
 502                                 cur.pop_back();
 503                 }
 504         }
 505 }
 506
 507
 508 void InsetMathNest::handleFont2(Cursor & cur, docstring const & arg)
 509 {
 510         cur.recordUndoSelection();
 511         Font font;
 512         bool b;
 513         font.fromString(to_utf8(arg), b);
 514         if (font.fontInfo().color() != Color_inherit &&
 515             font.fontInfo().color() != Color_ignore)
 516                 handleNest(cur, MathAtom(new InsetMathColor(buffer_, true, font.fontInfo().color())));
 517
 518         // FIXME: support other font changes here as well?
 519 }
 520
 521
 522 void InsetMathNest::doDispatch(Cursor & cur, FuncRequest & cmd)
 523 {
 524         //LYXERR0("InsetMathNest: request: " << cmd);
 525
 526         Parse::flags parseflg = Parse::QUIET | Parse::USETEXT;
 527
 528         FuncCode const act = cmd.action();
 529         switch (act) {
 530
 531         case LFUN_CLIPBOARD_PASTE:
 532                 parseflg |= Parse::VERBATIM;
 533                 // fall through
 534         case LFUN_PASTE: {
 535                 if (cur.currentMode() != MATH_MODE)
 536                         parseflg |= Parse::TEXTMODE;
 537                 cur.recordUndoSelection();
 538                 cur.message(_("Paste"));
 539                 replaceSelection(cur);
 540                 docstring topaste;
 541                 if (cmd.argument().empty() && !theClipboard().isInternal())
 542                         topaste = theClipboard().getAsText(frontend::Clipboard::PlainTextType);
 543                 else {
 544                         size_t n = 0;
 545                         idocstringstream is(cmd.argument());
 546                         is >> n;
 547                         topaste = cap::selection(n, buffer().params().documentClassPtr());
 548                 }
 549                 cur.niceInsert(topaste, parseflg, false);
 550                 cur.clearSelection(); // bug 393
 551                 cur.forceBufferUpdate();
 552                 cur.finishUndo();
 553                 break;
 554         }
 555
 556         case LFUN_CUT:
 557                 cur.recordUndo();
 558                 cutSelection(cur, true);
 559                 cur.message(_("Cut"));
 560                 // Prevent stale position >= size crash
 561                 // Probably not necessary anymore, see eraseSelection (gb 2005-10-09)
 562                 cur.normalize();
 563                 cur.forceBufferUpdate();
 564                 break;
 565
 566         case LFUN_COPY:
 567                 copySelection(cur);
 568                 cur.message(_("Copy"));
 569                 break;
 570
 571         case LFUN_MOUSE_PRESS:
 572                 lfunMousePress(cur, cmd);
 573                 break;
 574
 575         case LFUN_MOUSE_MOTION:
 576                 lfunMouseMotion(cur, cmd);
 577                 break;
 578
 579         case LFUN_MOUSE_RELEASE:
 580                 lfunMouseRelease(cur, cmd);
 581                 break;
 582
 583         case LFUN_FINISHED_LEFT: // in math, left is backwards
 584         case LFUN_FINISHED_BACKWARD:
 585                 cur.bv().cursor() = cur;
 586                 break;
 587
 588         case LFUN_FINISHED_RIGHT: // in math, right is forward
 589         case LFUN_FINISHED_FORWARD:
 590                 ++cur.pos();
 591                 cur.bv().cursor() = cur;
 592                 break;
 593
 594         case LFUN_WORD_RIGHT:
 595         case LFUN_WORD_LEFT:
 596         case LFUN_WORD_BACKWARD:
 597         case LFUN_WORD_FORWARD:
 598         case LFUN_CHAR_RIGHT:
 599         case LFUN_CHAR_LEFT:
 600         case LFUN_CHAR_BACKWARD:
 601         case LFUN_CHAR_FORWARD:
 602                 cur.screenUpdateFlags(Update::Decoration | Update::FitCursor);
 603                 // fall through
 604         case LFUN_WORD_RIGHT_SELECT:
 605         case LFUN_WORD_LEFT_SELECT:
 606         case LFUN_WORD_BACKWARD_SELECT:
 607         case LFUN_WORD_FORWARD_SELECT:
 608         case LFUN_CHAR_RIGHT_SELECT:
 609         case LFUN_CHAR_LEFT_SELECT:
 610         case LFUN_CHAR_BACKWARD_SELECT:
 611         case LFUN_CHAR_FORWARD_SELECT: {
 612                 // are we in a selection?
 613                 bool select = (act == LFUN_WORD_RIGHT_SELECT
 614                                            || act == LFUN_WORD_LEFT_SELECT
 615                                            || act == LFUN_WORD_BACKWARD_SELECT
 616                                            || act == LFUN_WORD_FORWARD_SELECT
 617                                || act == LFUN_CHAR_RIGHT_SELECT
 618                                            || act == LFUN_CHAR_LEFT_SELECT
 619                                            || act == LFUN_CHAR_BACKWARD_SELECT
 620                                            || act == LFUN_CHAR_FORWARD_SELECT);
 621                 // select words
 622                 bool word = (act == LFUN_WORD_RIGHT_SELECT
 623                              || act == LFUN_WORD_LEFT_SELECT
 624                              || act == LFUN_WORD_BACKWARD_SELECT
 625                              || act == LFUN_WORD_FORWARD_SELECT
 626                              || act == LFUN_WORD_RIGHT
 627                              || act == LFUN_WORD_LEFT
 628                              || act == LFUN_WORD_BACKWARD
 629                              || act == LFUN_WORD_FORWARD);
 630                 // are we moving forward or backwards?
 631                 // If the command was RIGHT or LEFT, then whether we're moving forward
 632                 // or backwards depends on the cursor movement mode (logical or visual):
 633                 //  * in visual mode, since math is always LTR, right -> forward,
 634                 //    left -> backwards
 635                 //  * in logical mode, the mapping is determined by the
 636                 //    reverseDirectionNeeded() function
 637
 638                 bool forward;
 639                 FuncCode finish_lfun;
 640
 641                 if (act == LFUN_CHAR_FORWARD
 642                     || act == LFUN_CHAR_FORWARD_SELECT
 643                     || act == LFUN_WORD_FORWARD
 644                     || act == LFUN_WORD_FORWARD_SELECT) {
 645                         forward = true;
 646                         finish_lfun = LFUN_FINISHED_FORWARD;
 647                 }
 648                 else if (act == LFUN_CHAR_BACKWARD
 649                          || act == LFUN_CHAR_BACKWARD_SELECT
 650                          || act == LFUN_WORD_BACKWARD
 651                          || act == LFUN_WORD_BACKWARD_SELECT) {
 652                         forward = false;
 653                         finish_lfun = LFUN_FINISHED_BACKWARD;
 654                 }
 655                 else {
 656                         bool right = (act == LFUN_CHAR_RIGHT_SELECT
 657                                                   || act == LFUN_CHAR_RIGHT
 658                                       || act == LFUN_WORD_RIGHT_SELECT
 659                                       || act == LFUN_WORD_RIGHT);
 660                         if (lyxrc.visual_cursor || !cur.reverseDirectionNeeded())
 661                                 forward = right;
 662                         else
 663                                 forward = !right;
 664
 665                         if (right)
 666                                 finish_lfun = LFUN_FINISHED_RIGHT;
 667                         else
 668                                 finish_lfun = LFUN_FINISHED_LEFT;
 669                 }
 670                 // Now that we know exactly what we want to do, let's do it!
 671                 cur.selHandle(select);
 672                 cur.clearTargetX();
 673                 cur.macroModeClose();
 674                 // try moving forward or backwards as necessary...
 675                 if (!(forward ? cur.mathForward(word) : cur.mathBackward(word))) {
 676                         // ... and if movement failed, then finish forward or backwards
 677                         // as necessary
 678                         cmd = FuncRequest(finish_lfun);
 679                         cur.undispatched();
 680                 }
 681                 break;
 682         }
 683
 684         case LFUN_DOWN:
 685         case LFUN_UP:
 686         case LFUN_PARAGRAPH_UP:
 687         case LFUN_PARAGRAPH_DOWN:
 688                 cur.screenUpdateFlags(Update::Decoration | Update::FitCursor);
 689                 // fall through
 690         case LFUN_DOWN_SELECT:
 691         case LFUN_UP_SELECT:
 692         case LFUN_PARAGRAPH_UP_SELECT:
 693         case LFUN_PARAGRAPH_DOWN_SELECT: {
 694                 // close active macro
 695                 if (cur.inMacroMode()) {
 696                         cur.macroModeClose();
 697                         break;
 698                 }
 699
 700                 // stop/start the selection
 701                 bool select = act == LFUN_DOWN_SELECT
 702                         || act == LFUN_UP_SELECT
 703                         || act == LFUN_PARAGRAPH_DOWN_SELECT
 704                         || act == LFUN_PARAGRAPH_UP_SELECT;
 705                 cur.selHandle(select);
 706
 707                 // go up/down
 708                 bool up = act == LFUN_UP || act == LFUN_UP_SELECT
 709                         || act == LFUN_PARAGRAPH_UP || act == LFUN_PARAGRAPH_UP_SELECT;
 710                 bool successful = cur.upDownInMath(up);
 711                 if (successful)
 712                         break;
 713
 714                 if (cur.fixIfBroken())
 715                         // FIXME: Something bad happened. We pass the corrected Cursor
 716                         // instead of letting things go worse.
 717                         break;
 718
 719                 // We did not manage to move the cursor.
 720                 cur.undispatched();
 721                 break;
 722         }
 723
 724         case LFUN_MOUSE_DOUBLE:
 725         case LFUN_WORD_SELECT:
 726                 cur.pos() = 0;
 727                 cur.bv().mouseSetCursor(cur);
 728                 cur.pos() = cur.lastpos();
 729                 cur.bv().mouseSetCursor(cur, true);
 730                 break;
 731
 732         case LFUN_MOUSE_TRIPLE:
 733                 cur.idx() = 0;
 734                 cur.pos() = 0;
 735                 cur.bv().mouseSetCursor(cur);
 736                 cur.idx() = cur.lastidx();
 737                 cur.pos() = cur.lastpos();
 738                 cur.bv().mouseSetCursor(cur, true);
 739                 break;
 740
 741         case LFUN_LINE_BEGIN:
 742                 cur.screenUpdateFlags(Update::Decoration | Update::FitCursor);
 743                 // fall through
 744         case LFUN_LINE_BEGIN_SELECT:
 745                 cur.selHandle(act == LFUN_WORD_BACKWARD_SELECT ||
 746                                 act == LFUN_WORD_LEFT_SELECT ||
 747                                 act == LFUN_LINE_BEGIN_SELECT);
 748                 cur.macroModeClose();
 749                 if (cur.pos() != 0) {
 750                         cur.pos() = 0;
 751                 } else if (cur.col() != 0) {
 752                         cur.idx() -= cur.col();
 753                         cur.pos() = 0;
 754                 } else if (cur.idx() != 0) {
 755                         cur.idx() = 0;
 756                         cur.pos() = 0;
 757                 } else {
 758                         cmd = FuncRequest(LFUN_FINISHED_BACKWARD);
 759                         cur.undispatched();
 760                 }
 761                 break;
 762
 763         case LFUN_LINE_END:
 764                 cur.screenUpdateFlags(Update::Decoration | Update::FitCursor);
 765                 // fall through
 766         case LFUN_LINE_END_SELECT:
 767                 cur.selHandle(act == LFUN_WORD_FORWARD_SELECT ||
 768                                 act == LFUN_WORD_RIGHT_SELECT ||
 769                                 act == LFUN_LINE_END_SELECT);
 770                 cur.macroModeClose();
 771                 cur.clearTargetX();
 772                 if (cur.pos() != cur.lastpos()) {
 773                         cur.pos() = cur.lastpos();
 774                 } else if (ncols() && (cur.col() != cur.lastcol())) {
 775                         cur.idx() = cur.idx() - cur.col() + cur.lastcol();
 776                         cur.pos() = cur.lastpos();
 777                 } else if (cur.idx() != cur.lastidx()) {
 778                         cur.idx() = cur.lastidx();
 779                         cur.pos() = cur.lastpos();
 780                 } else {
 781                         cmd = FuncRequest(LFUN_FINISHED_FORWARD);
 782                         cur.undispatched();
 783                 }
 784                 break;
 785
 786         case LFUN_CELL_FORWARD:
 787                 cur.screenUpdateFlags(Update::Decoration | Update::FitCursor);
 788                 cur.selHandle(false);
 789                 cur.clearTargetX();
 790                 cur.macroModeClose();
 791                 if (!cur.inset().idxNext(cur)) {
 792                         cur.idx() = firstIdx();
 793                         cur.pos() = 0;
 794                 }
 795                 break;
 796
 797         case LFUN_CELL_BACKWARD:
 798                 cur.screenUpdateFlags(Update::Decoration | Update::FitCursor);
 799                 cur.selHandle(false);
 800                 cur.clearTargetX();
 801                 cur.macroModeClose();
 802                 if (!cur.inset().idxPrev(cur)) {
 803                         cur.idx() = lastIdx();
 804                         cur.pos() = lyxrc.mac_like_cursor_movement ? cur.lastpos() : 0;
 805                 }
 806                 break;
 807
 808         case LFUN_WORD_DELETE_BACKWARD:
 809         case LFUN_CHAR_DELETE_BACKWARD:
 810                 if (cur.pos() == 0)
 811                         // May affect external cell:
 812                         cur.recordUndoInset();
 813                 else if (!cur.inMacroMode())
 814                         cur.recordUndoSelection();
 815                 // if the inset can not be removed from within, delete it
 816                 if (!cur.backspace(cmd.getArg(0) == "force")) {
 817                         FuncRequest newcmd = FuncRequest(LFUN_CHAR_DELETE_FORWARD, "force");
 818                         cur.innerText()->dispatch(cur, newcmd);
 819                 }
 820                 break;
 821
 822         case LFUN_WORD_DELETE_FORWARD:
 823         case LFUN_CHAR_DELETE_FORWARD:
 824                 if (cur.pos() == cur.lastpos())
 825                         // May affect external cell:
 826                         cur.recordUndoInset();
 827                 else
 828                         cur.recordUndoSelection();
 829                 // if the inset can not be removed from within, delete it
 830                 if (!cur.erase(cmd.getArg(0) == "force")) {
 831                         FuncRequest newcmd = FuncRequest(LFUN_CHAR_DELETE_FORWARD, "force");
 832                         cur.innerText()->dispatch(cur, newcmd);
 833                 }
 834                 break;
 835
 836         case LFUN_ESCAPE:
 837                 if (cur.selection())
 838                         cur.clearSelection();
 839                 else  {
 840                         if (cur.inMacroMode())
 841                                 cur.macroModeClose(true);
 842                         else {
 843                                 cmd = FuncRequest(LFUN_FINISHED_FORWARD);
 844                                 cur.undispatched();
 845                         }
 846                 }
 847                 break;
 848
 849         // 'Locks' the math inset. A 'locked' math inset behaves as a unit
 850         // that is traversed by a single <CursorLeft>/<CursorRight>.
 851         case LFUN_INSET_TOGGLE:
 852                 cur.recordUndo();
 853                 lock(!lock());
 854                 cur.popForward();
 855                 break;
 856
 857         case LFUN_SELF_INSERT:
 858                 // special case first for big delimiters
 859                 if (cmd.argument().size() != 1 && interpretString(cur, cmd.argument()))
 860                         break;
 861
 862                 for (char_type c : cmd.argument()) {
 863                         // Don't record undo steps if we are in macro mode and thus
 864                         // cmd.argument is the next character of the macro name.
 865                         // Otherwise we'll get an invalid cursor if we undo after
 866                         // the macro was finished and the macro is a known command,
 867                         // e.g. sqrt. Cursor::macroModeClose replaces in this case
 868                         // the InsetMathUnknown with name "frac" by an empty
 869                         // InsetMathFrac -> a pos value > 0 is invalid.
 870                         // A side effect is that an undo before the macro is finished
 871                         // undoes the complete macro, not only the last character.
 872                         // At the time we hit '\' we are not in macro mode, still.
 873                         if (!cur.inMacroMode())
 874                                 cur.recordUndoSelection();
 875
 876                         // special handling of space. If we insert an inset
 877                         // via macro mode, we want to put the cursor inside it
 878                         // if relevant. Think typing "\frac<space>".
 879                         if (c == ' '
 880                             && cur.inMacroMode() && cur.macroName() != "\\"
 881                             && cur.macroModeClose() && cur.pos() > 0)
 882                                 cur.editInsertedInset();
 883                         else if (!interpretChar(cur, c)) {
 884                                 cmd = FuncRequest(LFUN_FINISHED_FORWARD);
 885                                 cur.undispatched();
 886                                 // FIXME: can we avoid skipping the end of the string?
 887                                 break;
 888                         }
 889                 }
 890                 break;
 891
 892         //case LFUN_SERVER_GET_XY:
 893         //      break;
 894
 895         case LFUN_SERVER_SET_XY: {
 896                 lyxerr << "LFUN_SERVER_SET_XY broken!" << endl;
 897                 int x = 0;
 898                 int y = 0;
 899                 istringstream is(to_utf8(cmd.argument()));
 900                 is >> x >> y;
 901                 cur.setTargetX(x);
 902                 break;
 903         }
 904
 905         // Special casing for superscript in case of LyX handling
 906         // dead-keys:
 907         case LFUN_ACCENT_CIRCUMFLEX:
 908                 if (cmd.argument().empty()) {
 909                         // do superscript if LyX handles
 910                         // deadkeys
 911                         cur.recordUndoSelection();
 912                         script(cur, true, grabAndEraseSelection(cur));
 913                 }
 914                 break;
 915
 916         case LFUN_ACCENT_UMLAUT:
 917         case LFUN_ACCENT_ACUTE:
 918         case LFUN_ACCENT_GRAVE:
 919         case LFUN_ACCENT_BREVE:
 920         case LFUN_ACCENT_DOT:
 921         case LFUN_ACCENT_MACRON:
 922         case LFUN_ACCENT_CARON:
 923         case LFUN_ACCENT_TILDE:
 924         case LFUN_ACCENT_CEDILLA:
 925         case LFUN_ACCENT_CIRCLE:
 926         case LFUN_ACCENT_UNDERDOT:
 927         case LFUN_ACCENT_TIE:
 928         case LFUN_ACCENT_OGONEK:
 929         case LFUN_ACCENT_HUNGARIAN_UMLAUT:
 930                 break;
 931
 932         //  Math fonts
 933         case LFUN_TEXTSTYLE_APPLY:
 934         case LFUN_TEXTSTYLE_UPDATE:
 935                 handleFont2(cur, cmd.argument());
 936                 break;
 937
 938         case LFUN_FONT_BOLD:
 939                 if (currentMode() != MATH_MODE)
 940                         handleFont(cur, cmd.argument(), "textbf");
 941                 else
 942                         handleFont(cur, cmd.argument(), "mathbf");
 943                 break;
 944         case LFUN_FONT_BOLDSYMBOL:
 945                 if (currentMode() != MATH_MODE)
 946                         handleFont(cur, cmd.argument(), "textbf");
 947                 else
 948                         handleFont(cur, cmd.argument(), "boldsymbol");
 949                 break;
 950         case LFUN_FONT_SANS:
 951                 if (currentMode() != MATH_MODE)
 952                         handleFont(cur, cmd.argument(), "textsf");
 953                 else
 954                         handleFont(cur, cmd.argument(), "mathsf");
 955                 break;
 956         case LFUN_FONT_EMPH:
 957                 if (currentMode() != MATH_MODE)
 958                         handleFont(cur, cmd.argument(), "emph");
 959                 else
 960                         handleFont(cur, cmd.argument(), "mathcal");
 961                 break;
 962         case LFUN_FONT_ROMAN:
 963                 if (currentMode() != MATH_MODE)
 964                         handleFont(cur, cmd.argument(), "textrm");
 965                 else
 966                         handleFont(cur, cmd.argument(), "mathrm");
 967                 break;
 968         case LFUN_FONT_TYPEWRITER:
 969                 if (currentMode() != MATH_MODE)
 970                         handleFont(cur, cmd.argument(), "texttt");
 971                 else
 972                         handleFont(cur, cmd.argument(), "mathtt");
 973                 break;
 974         case LFUN_FONT_FRAK:
 975                 handleFont(cur, cmd.argument(), "mathfrak");
 976                 break;
 977         case LFUN_FONT_ITAL:
 978                 if (currentMode() != MATH_MODE)
 979                         handleFont(cur, cmd.argument(), "textit");
 980                 else
 981                         handleFont(cur, cmd.argument(), "mathit");
 982                 break;
 983         case LFUN_FONT_NOUN:
 984                 if (currentMode() != MATH_MODE)
 985                         // FIXME: should be "noun"
 986                         handleFont(cur, cmd.argument(), "textsc");
 987                 else
 988                         handleFont(cur, cmd.argument(), "mathbb");
 989                 break;
 990         case LFUN_FONT_DEFAULT:
 991                 handleFont(cur, cmd.argument(), "textnormal");
 992                 break;
 993         case LFUN_FONT_UNDERLINE:
 994                 cur.recordUndo();
 995                 cur.handleNest(createInsetMath("underline", cur.buffer()));
 996                 break;
 997
 998         case LFUN_MATH_MODE: {
 999 #if 1
1000                 // ignore math-mode on when already in math mode
1001                 if (currentMode() == Inset::MATH_MODE && cmd.argument() == "on")
1002                         break;
1003                 cur.recordUndoSelection();
1004                 cur.macroModeClose();
1005                 docstring const save_selection = grabAndEraseSelection(cur);
1006                 selClearOrDel(cur);
1007                 if (currentMode() != Inset::MATH_MODE)
1008                         cur.plainInsert(MathAtom(new InsetMathEnsureMath(buffer_)));
1009                 else
1010                         cur.plainInsert(createInsetMath("text", buffer_));
1011                 cur.posBackward();
1012                 cur.pushBackward(*cur.nextInset());
1013                 cur.niceInsert(save_selection);
1014                 cur.forceBufferUpdate();
1015 #else
1016                 if (currentMode() == Inset::TEXT_MODE) {
1017                         cur.recordUndoSelection();
1018                         cur.niceInsert(MathAtom(new InsetMathHull("simple", cur.buffer())));
1019                         cur.message(_("create new math text environment ($...$)"));
1020                 } else {
1021                         handleFont(cur, cmd.argument(), "textrm");
1022                         cur.message(_("entered math text mode (textrm)"));
1023                 }
1024 #endif
1025                 break;
1026         }
1027
1028         case LFUN_REGEXP_MODE: {
1029                 InsetMath * im = cur.inset().asInsetMath();
1030                 if (im) {
1031                         InsetMathHull * i = im->asHullInset();
1032                         if (i && i->getType() == hullRegexp) {
1033                                 cur.message(_("Already in regular expression mode"));
1034                                 break;
1035                         }
1036                 }
1037                 cur.macroModeClose();
1038                 docstring const save_selection = grabAndEraseSelection(cur);
1039                 selClearOrDel(cur);
1040                 cur.plainInsert(MathAtom(new InsetMathHull(buffer_, hullRegexp)));
1041                 cur.posBackward();
1042                 cur.pushBackward(*cur.nextInset());
1043                 cur.niceInsert(save_selection);
1044                 cur.message(_("Regular expression editor mode"));
1045                 break;
1046         }
1047
1048         case LFUN_MATH_FONT_STYLE: {
1049                 FuncRequest fr = FuncRequest(LFUN_MATH_INSERT, '\\' + cmd.argument());
1050                 doDispatch(cur, fr);
1051                 break;
1052         }
1053
1054         case LFUN_MATH_SIZE: {
1055                 FuncRequest fr = FuncRequest(LFUN_MATH_INSERT, cmd.argument());
1056                 doDispatch(cur, fr);
1057                 break;
1058         }
1059
1060         case LFUN_MATH_MATRIX: {
1061                 cur.recordUndo();
1062                 unsigned int m = 1;
1063                 unsigned int n = 1;
1064                 docstring v_align;
1065                 docstring h_align;
1066                 idocstringstream is(cmd.argument());
1067                 is >> m >> n >> v_align >> h_align;
1068                 if (m < 1)
1069                         m = 1;
1070                 if (n < 1)
1071                         n = 1;
1072                 v_align += 'c';
1073                 cur.niceInsert(MathAtom(new InsetMathArray(buffer_,
1074                         from_ascii("array"), m, n, (char)v_align[0], h_align)));
1075                 break;
1076         }
1077
1078         case LFUN_MATH_AMS_MATRIX: {
1079                 cur.recordUndo();
1080                 unsigned int m = 1;
1081                 unsigned int n = 1;
1082                 docstring name = from_ascii("matrix");
1083                 idocstringstream is(cmd.argument());
1084                 is >> m >> n >> name;
1085                 if (m < 1)
1086                         m = 1;
1087                 if (n < 1)
1088                         n = 1;
1089                 // check if we have a valid decoration
1090                 if (name != "pmatrix" && name != "bmatrix"
1091                         && name != "Bmatrix" && name != "vmatrix"
1092                         && name != "Vmatrix" && name != "matrix"
1093                         && name != "smallmatrix")
1094                         name = from_ascii("matrix");
1095
1096                 cur.niceInsert(
1097                         MathAtom(new InsetMathAMSArray(buffer_, name, m, n)));
1098                 break;
1099         }
1100
1101         case LFUN_MATH_DELIM: {
1102                 docstring ls;
1103                 docstring rs = split(cmd.argument(), ls, ' ');
1104                 // Reasonable default values
1105                 if (ls.empty())
1106                         ls = '(';
1107                 if (rs.empty())
1108                         rs = ')';
1109                 cur.recordUndo();
1110                 cur.handleNest(MathAtom(new InsetMathDelim(buffer_, ls, rs)));
1111                 break;
1112         }
1113
1114         case LFUN_MATH_BIGDELIM: {
1115                 docstring const lname  = from_utf8(cmd.getArg(0));
1116                 docstring const ldelim = from_utf8(cmd.getArg(1));
1117                 docstring const rname  = from_utf8(cmd.getArg(2));
1118                 docstring const rdelim = from_utf8(cmd.getArg(3));
1119                 latexkeys const * l = in_word_set(lname);
1120                 bool const have_l = l && l->inset == "big" &&
1121                                     InsetMathBig::isBigInsetDelim(ldelim);
1122                 l = in_word_set(rname);
1123                 bool const have_r = l && l->inset == "big" &&
1124                                     InsetMathBig::isBigInsetDelim(rdelim);
1125                 // We mimic LFUN_MATH_DELIM in case we have an empty left
1126                 // or right delimiter.
1127                 if (have_l || have_r) {
1128                         cur.recordUndo();
1129                         docstring const selection = grabAndEraseSelection(cur);
1130                         selClearOrDel(cur);
1131                         if (have_l)
1132                                 cur.insert(MathAtom(new InsetMathBig(lname,
1133                                                                 ldelim)));
1134                         // first insert the right delimiter and then go back
1135                         // and re-insert the selection (bug 7088)
1136                         if (have_r) {
1137                                 cur.insert(MathAtom(new InsetMathBig(rname,
1138                                                                 rdelim)));
1139                                 cur.posBackward();
1140                         }
1141                         cur.niceInsert(selection);
1142                 }
1143                 // Don't call cur.undispatched() if we did nothing, this would
1144                 // lead to infinite recursion via Text::dispatch().
1145                 break;
1146         }
1147
1148         case LFUN_SPACE_INSERT: {
1149                 cur.recordUndoSelection();
1150                 string const name = cmd.getArg(0);
1151                 if (name == "normal")
1152                         cur.insert(MathAtom(new InsetMathSpace(" ", "")));
1153                 else if (name == "protected")
1154                         cur.insert(MathAtom(new InsetMathSpace("~", "")));
1155                 else if (name == "thin" || name == "med" || name == "thick")
1156                         cur.insert(MathAtom(new InsetMathSpace(name + "space", "")));
1157                 else if (name == "hfill*")
1158                         cur.insert(MathAtom(new InsetMathSpace("hspace*{\\fill}", "")));
1159                 else if (name == "quad" || name == "qquad" ||
1160                          name == "enspace" || name == "enskip" ||
1161                          name == "negthinspace" || name == "negmedspace" ||
1162                          name == "negthickspace" || name == "hfill")
1163                         cur.insert(MathAtom(new InsetMathSpace(name, "")));
1164                 else if (name == "hspace" || name == "hspace*") {
1165                         string const len = cmd.getArg(1);
1166                         if (len.empty() || !isValidLength(len)) {
1167                                 lyxerr << "LyX function 'space-insert " << name << "' "
1168                                           "needs a valid length argument." << endl;
1169                                 break;
1170                         }
1171                         cur.insert(MathAtom(new InsetMathSpace(name, len)));
1172                 } else
1173                         cur.insert(MathAtom(new InsetMathSpace));
1174                 break;
1175         }
1176
1177         case LFUN_MATH_SPACE:
1178                 cur.recordUndoSelection();
1179                 if (cmd.argument().empty())
1180                         cur.insert(MathAtom(new InsetMathSpace));
1181                 else {
1182                         string const name = cmd.getArg(0);
1183                         string const len = cmd.getArg(1);
1184                         cur.insert(MathAtom(new InsetMathSpace(name, len)));
1185                 }
1186                 break;
1187
1188         case LFUN_ERT_INSERT:
1189                 // interpret this as if a backslash was typed
1190                 cur.recordUndo();
1191                 interpretChar(cur, '\\');
1192                 break;
1193
1194         case LFUN_MATH_SUBSCRIPT:
1195                 // interpret this as if a _ was typed
1196                 cur.recordUndoSelection();
1197                 interpretChar(cur, '_');
1198                 break;
1199
1200         case LFUN_MATH_SUPERSCRIPT:
1201                 // interpret this as if a ^ was typed
1202                 cur.recordUndoSelection();
1203                 interpretChar(cur, '^');
1204                 break;
1205
1206         case LFUN_MATH_MACRO_FOLD:
1207         case LFUN_MATH_MACRO_UNFOLD: {
1208                 Cursor it = cur;
1209                 bool fold = act == LFUN_MATH_MACRO_FOLD;
1210                 bool found = findMacroToFoldUnfold(it, fold);
1211                 if (found) {
1212                         InsetMathMacro * macro = it.nextInset()->asInsetMath()->asMacro();
1213                         cur.recordUndoInset();
1214                         if (fold)
1215                                 macro->fold(cur);
1216                         else
1217                                 macro->unfold(cur);
1218                 }
1219                 break;
1220         }
1221
1222         case LFUN_QUOTE_INSERT:
1223                 // interpret this as if a straight " was typed
1224                 cur.recordUndoSelection();
1225                 interpretChar(cur, '\"');
1226                 break;
1227
1228 // FIXME: We probably should swap parts of "math-insert" and "self-insert"
1229 // handling such that "self-insert" works on "arbitrary stuff" too, and
1230 // math-insert only handles special math things like "matrix".
1231         case LFUN_MATH_INSERT: {
1232                 cur.recordUndoSelection();
1233                 if (cmd.argument() == "^" || cmd.argument() == "_")
1234                         interpretChar(cur, cmd.argument()[0]);
1235                 else {
1236                         MathData ar;
1237                         asArray(cmd.argument(), ar);
1238                         if (cur.selection() && ar.size() == 1
1239                             && ar[0]->asNestInset()
1240                             && ar[0]->asNestInset()->nargs() > 1)
1241                                 handleNest(cur, ar[0]);
1242                         else
1243                                 cur.niceInsert(cmd.argument());
1244                 }
1245                 break;
1246         }
1247
1248         case LFUN_DIALOG_SHOW_NEW_INSET: {
1249                 docstring const & name = cmd.argument();
1250                 string data;
1251                 if (name == "ref") {
1252                         InsetMathRef tmp(buffer_, name);
1253                         data = tmp.createDialogStr();
1254                         cur.bv().showDialog(to_utf8(name), data);
1255                 } else if (name == "mathspace") {
1256                         cur.bv().showDialog(to_utf8(name));
1257                 }
1258                 break;
1259         }
1260
1261         case LFUN_INSET_INSERT: {
1262                 MathData ar;
1263                 if (createInsetMath_fromDialogStr(cmd.argument(), ar)) {
1264                         cur.recordUndoSelection();
1265                         cur.insert(ar);
1266                         cur.forceBufferUpdate();
1267                 } else
1268                         cur.undispatched();
1269                 break;
1270         }
1271         case LFUN_INSET_DISSOLVE:
1272                 if (!asHullInset()) {
1273                         cur.recordUndoInset();
1274                         cur.pullArg();
1275                 }
1276                 break;
1277
1278         default:
1279                 InsetMath::doDispatch(cur, cmd);
1280                 break;
1281         }
1282 }
1283
1284
1285 bool InsetMathNest::findMacroToFoldUnfold(Cursor & it, bool fold) const {
1286         // look for macro to open/close, but stay in mathed
1287         for (; !it.empty(); it.pop_back()) {
1288
1289                 // go backward through the current cell
1290                 Inset * inset = it.nextInset();
1291                 while (inset && inset->asInsetMath()) {
1292                         InsetMathMacro * macro = inset->asInsetMath()->asMacro();
1293                         if (macro) {
1294                                 // found the an macro to open/close?
1295                                 if (macro->folded() != fold)
1296                                         return true;
1297
1298                                 // Wrong folding state.
1299                                 // If this was the first we see in this slice, look further left,
1300                                 // otherwise go up.
1301                                 if (inset != it.nextInset())
1302                                         break;
1303                         }
1304
1305                         // go up if this was the left most position
1306                         if (it.pos() == 0)
1307                                 break;
1308
1309                         // go left
1310                         it.pos()--;
1311                         inset = it.nextInset();
1312                 }
1313         }
1314
1315         return false;
1316 }
1317
1318
1319 bool InsetMathNest::getStatus(Cursor & cur, FuncRequest const & cmd,
1320                 FuncStatus & flag) const
1321 {
1322         // the font related toggles
1323         //string tc = "mathnormal";
1324         bool ret = true;
1325         string const arg = to_utf8(cmd.argument());
1326         switch (cmd.action()) {
1327         case LFUN_INSET_MODIFY:
1328                 flag.setEnabled(false);
1329                 break;
1330 #if 0
1331         case LFUN_INSET_MODIFY:
1332                 // FIXME: check temporarily disabled
1333                 // valign code
1334                 char align = mathcursor::valign();
1335                 if (align == '\0') {
1336                         enable = false;
1337                         break;
1338                 }
1339                 if (cmd.argument().empty()) {
1340                         flag.clear();
1341                         break;
1342                 }
1343                 if (!contains("tcb", cmd.argument()[0])) {
1344                         enable = false;
1345                         break;
1346                 }
1347                 flag.setOnOff(cmd.argument()[0] == align);
1348                 break;
1349 #endif
1350         /// We have to handle them since 1.4 blocks all unhandled actions
1351         case LFUN_FONT_ITAL:
1352         case LFUN_FONT_BOLD:
1353         case LFUN_FONT_BOLDSYMBOL:
1354         case LFUN_FONT_SANS:
1355         case LFUN_FONT_EMPH:
1356         case LFUN_FONT_TYPEWRITER:
1357         case LFUN_FONT_NOUN:
1358         case LFUN_FONT_ROMAN:
1359         case LFUN_FONT_DEFAULT:
1360                 flag.setEnabled(true);
1361                 break;
1362
1363         // we just need to be in math mode to enable that
1364         case LFUN_MATH_SIZE:
1365         case LFUN_MATH_SPACE:
1366         case LFUN_MATH_EXTERN:
1367                 flag.setEnabled(true);
1368                 break;
1369
1370         case LFUN_FONT_UNDERLINE:
1371         case LFUN_FONT_FRAK:
1372                 flag.setEnabled(currentMode() != TEXT_MODE);
1373                 break;
1374
1375         case LFUN_MATH_FONT_STYLE: {
1376                 bool const textarg =
1377                         arg == "textbf"   || arg == "textsf" ||
1378                         arg == "textrm"   || arg == "textmd" ||
1379                         arg == "textit"   || arg == "textsc" ||
1380                         arg == "textsl"   || arg == "textup" ||
1381                         arg == "texttt"   || arg == "textbb" ||
1382                         arg == "textnormal";
1383                 flag.setEnabled(currentMode() != TEXT_MODE || textarg);
1384                 break;
1385         }
1386
1387         case LFUN_MATH_MODE:
1388                 // forbid "math-mode on" in math mode to prevent irritating
1389                 // behaviour of menu entries (bug 6709)
1390                 flag.setEnabled(currentMode() == TEXT_MODE || arg != "on");
1391                 break;
1392
1393         case LFUN_MATH_INSERT:
1394                 flag.setEnabled(currentMode() != TEXT_MODE);
1395                 break;
1396
1397         case LFUN_MATH_AMS_MATRIX:
1398         case LFUN_MATH_MATRIX:
1399                 flag.setEnabled(currentMode() == MATH_MODE);
1400                 break;
1401
1402         case LFUN_INSET_INSERT: {
1403                 // Don't test createMathInset_fromDialogStr(), since
1404                 // getStatus is not called with a valid reference and the
1405                 // dialog would not be applyable.
1406                 string const name = cmd.getArg(0);
1407                 flag.setEnabled(name == "ref" || name == "mathspace");
1408                 break;
1409         }
1410
1411         case LFUN_DIALOG_SHOW_NEW_INSET: {
1412                 docstring const & name = cmd.argument();
1413                 if (name == "space")
1414                         flag.setEnabled(false);
1415                 break;
1416         }
1417
1418
1419         case LFUN_MATH_DELIM:
1420         case LFUN_MATH_BIGDELIM:
1421                 // Don't do this with multi-cell selections
1422                 flag.setEnabled(cur.selBegin().idx() == cur.selEnd().idx());
1423                 break;
1424
1425         case LFUN_MATH_MACRO_FOLD:
1426         case LFUN_MATH_MACRO_UNFOLD: {
1427                 Cursor it = cur;
1428                 bool found = findMacroToFoldUnfold(it, cmd.action() == LFUN_MATH_MACRO_FOLD);
1429                 flag.setEnabled(found);
1430                 break;
1431         }
1432
1433         case LFUN_SPECIALCHAR_INSERT:
1434         case LFUN_SCRIPT_INSERT:
1435                 // FIXME: These would probably make sense in math-text mode
1436                 flag.setEnabled(false);
1437                 break;
1438
1439         case LFUN_CAPTION_INSERT:
1440                 flag.setEnabled(false);
1441                 break;
1442
1443         case LFUN_SPACE_INSERT: {
1444                 docstring const & name = cmd.argument();
1445                 if (name == "visible")
1446                         flag.setEnabled(false);
1447                 break;
1448         }
1449
1450         case LFUN_INSET_DISSOLVE:
1451                 flag.setEnabled(!asHullInset());
1452                 break;
1453
1454         case LFUN_PASTE: {
1455                 docstring const & name = cmd.argument();
1456                 if (name == "html" || name == "latex")
1457                         flag.setEnabled(false);
1458                 break;
1459         }
1460
1461         default:
1462                 ret = false;
1463                 break;
1464         }
1465         return ret;
1466 }
1467
1468
1469 void InsetMathNest::edit(Cursor & cur, bool front, EntryDirection entry_from)
1470 {
1471         cur.push(*this);
1472         bool enter_front = (entry_from == Inset::ENTRY_DIRECTION_LEFT ||
1473                 (entry_from == Inset::ENTRY_DIRECTION_IGNORE && front));
1474         enter_front ? idxFirst(cur) : idxLast(cur);
1475         cur.resetAnchor();
1476         //lyxerr << "InsetMathNest::edit, cur:\n" << cur << endl;
1477 }
1478
1479
1480 Inset * InsetMathNest::editXY(Cursor & cur, int x, int y)
1481 {
1482         int idx_min = -1;
1483         int dist_min = 1000000;
1484         for (idx_type i = 0, n = nargs(); i != n; ++i) {
1485                 int const d = cell(i).dist(cur.bv(), x, y);
1486                 if (d < dist_min) {
1487                         dist_min = d;
1488                         idx_min = i;
1489                 }
1490         }
1491         if (idx_min == -1)
1492                 return this;
1493
1494         MathData & ar = cell(idx_min);
1495         cur.push(*this);
1496         cur.idx() = idx_min;
1497         cur.pos() = ar.x2pos(&cur.bv(), x - ar.xo(cur.bv()));
1498
1499         //lyxerr << "found cell : " << idx_min << " pos: " << cur.pos() << endl;
1500         if (dist_min == 0) {
1501                 // hit inside cell
1502                 for (pos_type i = 0, n = ar.size(); i < n; ++i)
1503                         if (ar[i]->covers(cur.bv(), x, y))
1504                                 return ar[i].nucleus()->editXY(cur, x, y);
1505         }
1506         return this;
1507 }
1508
1509
1510 void InsetMathNest::lfunMousePress(Cursor & cur, FuncRequest & cmd)
1511 {
1512         //lyxerr << "## lfunMousePress: buttons: " << cmd.button() << endl;
1513         BufferView & bv = cur.bv();
1514         if (cmd.button() == mouse_button::button3) {
1515                 // Don't do anything if we right-click a
1516                 // selection, a context menu will popup.
1517                 if (bv.cursor().selection() && cur >= bv.cursor().selectionBegin()
1518                       && cur < bv.cursor().selectionEnd()) {
1519                         cur.noScreenUpdate();
1520                         return;
1521                 }
1522         }
1523
1524         // set cursor after the inset if x is nearer to that position (bug 9748)
1525         cur.moveToClosestEdge(cmd.x(), true);
1526
1527         bool do_selection = cmd.button() == mouse_button::button1
1528                 && cmd.modifier() == ShiftModifier;
1529         bv.mouseSetCursor(cur, do_selection);
1530         if (cmd.button() == mouse_button::button1) {
1531                 //lyxerr << "## lfunMousePress: setting cursor to: " << cur << endl;
1532                 // Update the cursor update flags as needed:
1533                 //
1534                 // Update::Decoration: tells to update the decoration
1535                 //                     (visual box corners that define
1536                 //                     the inset)/
1537                 // Update::FitCursor: adjust the screen to the cursor
1538                 //                    position if needed
1539                 // cur.result().update(): don't overwrite previously set flags.
1540                 cur.screenUpdateFlags(Update::Decoration | Update::FitCursor
1541                                 | cur.result().screenUpdate());
1542         } else if (cmd.button() == mouse_button::button2 && lyxrc.mouse_middlebutton_paste) {
1543                 if (cap::selection()) {
1544                         // See comment in Text::dispatch why we do this
1545                         cap::copySelectionToStack();
1546                         cmd = FuncRequest(LFUN_PASTE, "0");
1547                         doDispatch(bv.cursor(), cmd);
1548                 } else {
1549                         MathData ar;
1550                         asArray(theSelection().get(), ar);
1551                         bv.cursor().insert(ar);
1552                 }
1553         }
1554 }
1555
1556
1557 void InsetMathNest::lfunMouseMotion(Cursor & cur, FuncRequest & cmd)
1558 {
1559         // only select with button 1
1560         if (cmd.button() != mouse_button::button1)
1561                 return;
1562
1563         Cursor & bvcur = cur.bv().cursor();
1564
1565         // ignore motions deeper nested than the real anchor
1566         if (!bvcur.realAnchor().hasPart(cur)) {
1567                 cur.undispatched();
1568                 return;
1569         }
1570
1571         // set cursor after the inset if x is nearer to that position (bug 9748)
1572         cur.moveToClosestEdge(cmd.x());
1573
1574         CursorSlice old = bvcur.top();
1575
1576         // We continue with our existing selection or start a new one, so don't
1577         // reset the anchor.
1578         bvcur.setCursor(cur);
1579         // Did we actually move?
1580         if (cur.top() == old)
1581                 // We didn't move one iota, so no need to change selection status
1582                 // or update the screen.
1583                 cur.screenUpdateFlags(Update::SinglePar | Update::FitCursor);
1584         else
1585                 bvcur.setSelection();
1586 }
1587
1588
1589 void InsetMathNest::lfunMouseRelease(Cursor & cur, FuncRequest & cmd)
1590 {
1591         //lyxerr << "## lfunMouseRelease: buttons: " << cmd.button() << endl;
1592
1593         if (cmd.button() == mouse_button::button1) {
1594                 if (!cur.selection())
1595                         cur.noScreenUpdate();
1596                 else {
1597                         Cursor & bvcur = cur.bv().cursor();
1598                         bvcur.selection(true);
1599                 }
1600                 return;
1601         }
1602
1603         cur.undispatched();
1604 }
1605
1606
1607 bool InsetMathNest::interpretChar(Cursor & cur, char_type const c)
1608 {
1609         // try auto-correction
1610         if (lyxrc.autocorrection_math && cur.pos() != 0
1611                   && math_autocorrect(cur, c))
1612                 return true;
1613
1614         //lyxerr << "interpret 2: '" << c << "'" << endl;
1615         docstring save_selection;
1616         if (c == '^' || c == '_')
1617                 save_selection = grabAndEraseSelection(cur);
1618
1619         cur.clearTargetX();
1620         Buffer * buf = cur.buffer();
1621
1622         // handle macroMode
1623         if (cur.inMacroMode()) {
1624                 docstring name = cur.macroName();
1625
1626                 /// are we currently typing '#1' or '#2' or...?
1627                 if (name == "\\#") {
1628                         cur.backspace();
1629                         int n = c - '0';
1630                         if (n >= 1 && n <= 9)
1631                                 cur.insert(new InsetMathMacroArgument(n));
1632                         return true;
1633                 }
1634
1635                 // do not finish macro for known * commands
1636                 bool star_macro = c == '*'
1637                         && (in_word_set(name.substr(1) + '*')
1638                             || cur.buffer()->getMacro(name.substr(1) + "*", cur, true));
1639                 if (isAlphaASCII(c) || star_macro) {
1640                         cur.activeMacro()->setName(name + docstring(1, c));
1641                         return true;
1642                 }
1643
1644                 // handle 'special char' macros
1645                 if (name == "\\") {
1646                         // remove the '\\'
1647                         if (c == '\\') {
1648                                 cur.backspace();
1649                                 if (currentMode() != InsetMath::MATH_MODE)
1650                                         cur.niceInsert(createInsetMath("textbackslash", buf));
1651                                 else
1652                                         cur.niceInsert(createInsetMath("backslash", buf));
1653                         } else if (c == '^' && currentMode() == InsetMath::MATH_MODE) {
1654                                 cur.backspace();
1655                                 cur.niceInsert(createInsetMath("mathcircumflex", buf));
1656                         } else if (c == '{' || c == '%') {
1657                                 //using the saved selection as argument
1658                                 InsetMathUnknown * p = cur.activeMacro();
1659                                 p->finalize();
1660                                 MathData sel(cur.buffer());
1661                                 asArray(p->selection(), sel);
1662                                 cur.backspace();
1663                                 if (c == '{')
1664                                         cur.niceInsert(MathAtom(new InsetMathBrace(sel)));
1665                                 else
1666                                         cur.niceInsert(MathAtom(new InsetMathComment(sel)));
1667                         } else if (c == '#') {
1668                                 LASSERT(cur.activeMacro(), return false);
1669                                 cur.activeMacro()->setName(name + docstring(1, c));
1670                         } else {
1671                                 cur.backspace();
1672                                 cur.niceInsert(createInsetMath(docstring(1, c), buf));
1673                         }
1674                         return true;
1675                 }
1676
1677                 // One character big delimiters. The others are handled in
1678                 // interpretString().
1679                 latexkeys const * l = in_word_set(name.substr(1));
1680                 if (name[0] == '\\' && l && l->inset == "big") {
1681                         docstring delim;
1682                         switch (c) {
1683                         case '{':
1684                                 delim = from_ascii("\\{");
1685                                 break;
1686                         case '}':
1687                                 delim = from_ascii("\\}");
1688                                 break;
1689                         default:
1690                                 delim = docstring(1, c);
1691                                 break;
1692                         }
1693                         if (InsetMathBig::isBigInsetDelim(delim)) {
1694                                 // name + delim ared a valid InsetMathBig.
1695                                 // We can't use cur.macroModeClose() because
1696                                 // it does not handle delim.
1697                                 InsetMathUnknown * p = cur.activeMacro();
1698                                 p->finalize();
1699                                 --cur.pos();
1700                                 cur.cell().erase(cur.pos());
1701                                 cur.plainInsert(MathAtom(
1702                                         new InsetMathBig(name.substr(1), delim)));
1703                                 return true;
1704                         }
1705                 } else if (name == "\\smash" && c == '[') {
1706                         // We can't use cur.macroModeClose() because
1707                         // it would create an InsetMathPhantom
1708                         InsetMathUnknown * p = cur.activeMacro();
1709                         p->finalize();
1710                         interpretChar(cur, c);
1711                         return true;
1712                 }
1713
1714                 // leave macro mode and try again if necessary
1715                 if (cur.macroModeClose()) {
1716                         MathAtom const atom = cur.prevAtom();
1717                         if (atom->asNestInset() && atom->isActive()) {
1718                                 cur.posBackward();
1719                                 cur.nextInset()->edit(cur, true);
1720                         }
1721                 }
1722                 if (c == '{')
1723                         cur.niceInsert(MathAtom(new InsetMathBrace(buf)));
1724                 else if (c != ' ')
1725                         interpretChar(cur, c);
1726                 return true;
1727         }
1728
1729
1730         // just clear selection on pressing the space bar
1731         if (cur.selection() && c == ' ') {
1732                 cur.selection(false);
1733                 return true;
1734         }
1735
1736         if (c == '\\') {
1737                 //lyxerr << "starting with macro" << endl;
1738                 bool reduced = cap::reduceSelectionToOneCell(cur);
1739                 if (reduced || !cur.selection()) {
1740                         cur.recordUndoInset();
1741                         docstring const safe = cap::grabAndEraseSelection(cur);
1742                         if (!cur.inRegexped())
1743                                 cur.insert(MathAtom(new InsetMathUnknown(from_ascii("\\"), safe, false)));
1744                         else
1745                                 cur.niceInsert(createInsetMath("backslash", buf));
1746                 }
1747                 return true;
1748         }
1749
1750         selClearOrDel(cur);
1751
1752         if (c == '\n') {
1753                 if (currentMode() != InsetMath::MATH_MODE)
1754                         cur.insert(c);
1755                 return true;
1756         }
1757
1758         if (c == ' ') {
1759                 if (currentMode() != InsetMath::MATH_MODE) {
1760                         // insert spaces in text or undecided mode,
1761                         // but suppress direct insertion of two spaces in a row
1762                         // the still allows typing  '<space>a<space>' and deleting the 'a', but
1763                         // it is better than nothing...
1764                         if (cur.pos() == 0 || cur.prevAtom()->getChar() != ' ') {
1765                                 cur.insert(c);
1766                                 // FIXME: we have to enable full redraw here because of the
1767                                 // visual box corners that define the inset. If we know for
1768                                 // sure that we stay within the same cell we can optimize for
1769                                 // that using:
1770                                 //cur.screenUpdateFlags(Update::SinglePar | Update::FitCursor);
1771                         }
1772                         return true;
1773                 }
1774                 if (cur.pos() != 0 && cur.prevAtom()->asSpaceInset()) {
1775                         cur.prevAtom().nucleus()->asSpaceInset()->incSpace();
1776                         // FIXME: we have to enable full redraw here because of the
1777                         // visual box corners that define the inset. If we know for
1778                         // sure that we stay within the same cell we can optimize for
1779                         // that using:
1780                         //cur.screenUpdateFlags(Update::SinglePar | Update::FitCursor);
1781                         return true;
1782                 }
1783
1784                 if (cur.popForward()) {
1785                         // FIXME: we have to enable full redraw here because of the
1786                         // visual box corners that define the inset. If we know for
1787                         // sure that we stay within the same cell we can optimize for
1788                         // that using:
1789                         //cur.screenUpdateFlags(Update::FitCursor);
1790                         return true;
1791                 }
1792
1793                 // if we are at the very end, leave the formula
1794                 return cur.pos() != cur.lastpos();
1795         }
1796
1797         // These should be treated differently when not in text mode:
1798         if (cur.inRegexped()) {
1799                 switch (c) {
1800                 case '^':
1801                         cur.niceInsert(createInsetMath("mathcircumflex", buf));
1802                         break;
1803                 case '{':
1804                 case '}':
1805                 case '#':
1806                 case '%':
1807                 case '_':
1808                         cur.niceInsert(createInsetMath(docstring(1, c), buf));
1809                         break;
1810                 case '~':
1811                         cur.niceInsert(createInsetMath("sim", buf));
1812                         break;
1813                 default:
1814                         cur.insert(c);
1815                 }
1816                 return true;
1817         } else if (currentMode() != InsetMath::TEXT_MODE) {
1818                 if (c == '_') {
1819                         script(cur, false, save_selection);
1820                         return true;
1821                 }
1822                 if (c == '^') {
1823                         script(cur, true, save_selection);
1824                         return true;
1825                 }
1826                 if (c == '~') {
1827                         cur.niceInsert(createInsetMath("sim", buf));
1828                         return true;
1829                 }
1830                 if (currentMode() == InsetMath::MATH_MODE && Encodings::isUnicodeTextOnly(c)) {
1831                         MathAtom at = createInsetMath("text", buf);
1832                         at.nucleus()->cell(0).push_back(MathAtom(new InsetMathChar(c)));
1833                         cur.insert(at);
1834                         cur.posForward();
1835                         return true;
1836                 }
1837         } else {
1838                 if (c == '^') {
1839                         cur.niceInsert(createInsetMath("textasciicircum", buf));
1840                         return true;
1841                 }
1842                 if (c == '~') {
1843                         cur.niceInsert(createInsetMath("textasciitilde", buf));
1844                         return true;
1845                 }
1846         }
1847
1848         if (c == '{' || c == '}' || c == '&' || c == '$' || c == '#' ||
1849             c == '%' || c == '_') {
1850                 cur.niceInsert(createInsetMath(docstring(1, c), buf));
1851                 return true;
1852         }
1853
1854         // no special circumstances, so insert the character without any fuss
1855         cur.insert(c);
1856         return true;
1857 }
1858
1859
1860 bool InsetMathNest::interpretString(Cursor & cur, docstring const & str)
1861 {
1862         // Create a InsetMathBig from cur.cell()[cur.pos() - 1] and t if
1863         // possible
1864         if (!cur.empty() && cur.pos() > 0 &&
1865             cur.cell()[cur.pos() - 1]->asUnknownInset()) {
1866                 if (InsetMathBig::isBigInsetDelim(str)) {
1867                         docstring prev = asString(cur.cell()[cur.pos() - 1]);
1868                         if (prev[0] == '\\') {
1869                                 prev = prev.substr(1);
1870                                 latexkeys const * l = in_word_set(prev);
1871                                 if (l && l->inset == "big") {
1872                                         cur.recordUndoSelection();
1873                                         cur.cell()[cur.pos() - 1] =
1874                                                 MathAtom(new InsetMathBig(prev, str));
1875                                         return true;
1876                                 }
1877                         }
1878                 }
1879         }
1880         return false;
1881 }
1882
1883
1884 bool InsetMathNest::script(Cursor & cur, bool up)
1885 {
1886         return script(cur, up, docstring());
1887 }
1888
1889
1890 bool InsetMathNest::script(Cursor & cur, bool up,
1891                 docstring const & save_selection)
1892 {
1893         // Hack to get \^ and \_ working
1894         //lyxerr << "handling script: up: " << up << endl;
1895         if (cur.inMacroMode() && cur.macroName() == "\\") {
1896                 if (up)
1897                         cur.niceInsert(createInsetMath("mathcircumflex", cur.buffer()));
1898                 else
1899                         interpretChar(cur, '_');
1900                 return true;
1901         }
1902
1903         cur.macroModeClose();
1904         if (asScriptInset() && cur.idx() == 0) {
1905                 // we are in a nucleus of a script inset, move to _our_ script
1906                 InsetMathScript * inset = asScriptInset();
1907                 //lyxerr << " going to cell " << inset->idxOfScript(up) << endl;
1908                 inset->ensure(up);
1909                 cur.idx() = inset->idxOfScript(up);
1910                 cur.pos() = 0;
1911         } else if (cur.pos() != 0 && cur.prevAtom()->asScriptInset()) {
1912                 --cur.pos();
1913                 InsetMathScript * inset = cur.nextAtom().nucleus()->asScriptInset();
1914                 cur.push(*inset);
1915                 inset->ensure(up);
1916                 cur.idx() = inset->idxOfScript(up);
1917                 cur.pos() = cur.lastpos();
1918         } else {
1919                 // convert the thing to our left to a scriptinset or create a new
1920                 // one if in the very first position of the array
1921                 if (cur.pos() == 0) {
1922                         //lyxerr << "new scriptinset" << endl;
1923                         cur.insert(new InsetMathScript(buffer_, up));
1924                 } else {
1925                         //lyxerr << "converting prev atom " << endl;
1926                         cur.prevAtom() = MathAtom(new InsetMathScript(buffer_, cur.prevAtom(), up));
1927                 }
1928                 --cur.pos();
1929                 InsetMathScript * inset = cur.nextAtom().nucleus()->asScriptInset();
1930                 // See comment in MathParser.cpp for special handling of {}-bases
1931
1932                 cur.push(*inset);
1933                 cur.idx() = 1;
1934                 cur.pos() = 0;
1935         }
1936         //lyxerr << "inserting selection 1:\n" << save_selection << endl;
1937         cur.niceInsert(save_selection);
1938         cur.resetAnchor();
1939         //lyxerr << "inserting selection 2:\n" << save_selection << endl;
1940         return true;
1941 }
1942
1943
1944 bool InsetMathNest::completionSupported(Cursor const & cur) const
1945 {
1946         return cur.inMacroMode();
1947 }
1948
1949
1950 bool InsetMathNest::inlineCompletionSupported(Cursor const & cur) const
1951 {
1952         return cur.inMacroMode();
1953 }
1954
1955
1956 bool InsetMathNest::automaticInlineCompletion() const
1957 {
1958         return lyxrc.completion_inline_math;
1959 }
1960
1961
1962 bool InsetMathNest::automaticPopupCompletion() const
1963 {
1964         return lyxrc.completion_popup_math;
1965 }
1966
1967
1968 CompletionList const *
1969 InsetMathNest::createCompletionList(Cursor const & cur) const
1970 {
1971         if (!cur.inMacroMode())
1972                 return 0;
1973
1974         return new MathCompletionList(cur);
1975 }
1976
1977
1978 docstring InsetMathNest::completionPrefix(Cursor const & cur) const
1979 {
1980         if (!cur.inMacroMode())
1981                 return docstring();
1982
1983         return cur.activeMacro()->name();
1984 }
1985
1986
1987 bool InsetMathNest::insertCompletion(Cursor & cur, docstring const & s,
1988                                      bool finished)
1989 {
1990         if (!cur.inMacroMode())
1991                 return false;
1992
1993         // append completion to active macro
1994         InsetMathUnknown * inset = cur.activeMacro();
1995         inset->setName(inset->name() + s);
1996
1997         // finish macro
1998         if (finished) {
1999 #if 0
2000                 // FIXME: this creates duplicates in the completion popup
2001                 // which looks ugly. Moreover the changes the list lengths
2002                 // which seems to confuse the popup as well.
2003                 MathCompletionList::addToFavorites(inset->name());
2004 #endif
2005                 lyx::dispatch(FuncRequest(LFUN_SELF_INSERT, " "));
2006         }
2007
2008         return true;
2009 }
2010
2011
2012 void InsetMathNest::completionPosAndDim(Cursor const & cur, int & x, int & y,
2013                                         Dimension & dim) const
2014 {
2015         Inset const * inset = cur.activeMacro();
2016         if (!inset)
2017                 return;
2018
2019         // get inset dimensions
2020         dim = cur.bv().coordCache().insets().dim(inset);
2021         // FIXME: these 3 are no accurate, but should depend on the font.
2022         // Now the popup jumps down if you enter a char with descent > 0.
2023         dim.des += 3;
2024         dim.asc += 3;
2025
2026         // and position
2027         Point xy = cur.bv().coordCache().insets().xy(inset);
2028         x = xy.x_;
2029         y = xy.y_;
2030 }
2031
2032
2033 ////////////////////////////////////////////////////////////////////
2034
2035 MathCompletionList::MathCompletionList(Cursor const & cur)
2036 {
2037         // fill it with macros from the buffer
2038         MacroNameSet macros;
2039         cur.buffer()->listMacroNames(macros);
2040         MacroNameSet::const_iterator it;
2041         for (it = macros.begin(); it != macros.end(); ++it) {
2042                 if (cur.buffer()->getMacro(*it, cur, false))
2043                         locals.push_back("\\" + *it);
2044         }
2045         sort(locals.begin(), locals.end());
2046
2047         if (!globals.empty())
2048                 return;
2049
2050         // fill in global macros
2051         macros.clear();
2052         MacroTable::globalMacros().getMacroNames(macros, false);
2053         //lyxerr << "Globals completion macros: ";
2054         for (it = macros.begin(); it != macros.end(); ++it) {
2055                 //lyxerr << "\\" + *it << " ";
2056                 globals.push_back("\\" + *it);
2057         }
2058         //lyxerr << std::endl;
2059
2060         // fill in global commands
2061         globals.push_back(from_ascii("\\boxed"));
2062         globals.push_back(from_ascii("\\fbox"));
2063         globals.push_back(from_ascii("\\framebox"));
2064         globals.push_back(from_ascii("\\makebox"));
2065         globals.push_back(from_ascii("\\kern"));
2066         globals.push_back(from_ascii("\\xhookrightarrow"));
2067         globals.push_back(from_ascii("\\xhookleftarrow"));
2068         globals.push_back(from_ascii("\\xrightarrow"));
2069         globals.push_back(from_ascii("\\xRightarrow"));
2070         globals.push_back(from_ascii("\\xrightharpoondown"));
2071         globals.push_back(from_ascii("\\xrightharpoonup"));
2072         globals.push_back(from_ascii("\\xrightleftharpoons"));
2073         globals.push_back(from_ascii("\\xleftarrow"));
2074         globals.push_back(from_ascii("\\xLeftarrow"));
2075         globals.push_back(from_ascii("\\xleftharpoondown"));
2076         globals.push_back(from_ascii("\\xleftharpoonup"));
2077         globals.push_back(from_ascii("\\xleftrightarrow"));
2078         globals.push_back(from_ascii("\\xLeftrightarrow"));
2079         globals.push_back(from_ascii("\\xleftrightharpoons"));
2080         globals.push_back(from_ascii("\\xmapsto"));
2081         globals.push_back(from_ascii("\\split"));
2082         globals.push_back(from_ascii("\\gathered"));
2083         globals.push_back(from_ascii("\\aligned"));
2084         globals.push_back(from_ascii("\\alignedat"));
2085         globals.push_back(from_ascii("\\cases"));
2086         globals.push_back(from_ascii("\\substack"));
2087         globals.push_back(from_ascii("\\xymatrix"));
2088         globals.push_back(from_ascii("\\Diagram"));
2089         globals.push_back(from_ascii("\\subarray"));
2090         globals.push_back(from_ascii("\\array"));
2091         globals.push_back(from_ascii("\\sqrt"));
2092         globals.push_back(from_ascii("\\root"));
2093         globals.push_back(from_ascii("\\tabular"));
2094         globals.push_back(from_ascii("\\sideset"));
2095         globals.push_back(from_ascii("\\stackrel"));
2096         globals.push_back(from_ascii("\\stackrelthree"));
2097         globals.push_back(from_ascii("\\binom"));
2098         globals.push_back(from_ascii("\\choose"));
2099         globals.push_back(from_ascii("\\brace"));
2100         globals.push_back(from_ascii("\\brack"));
2101         globals.push_back(from_ascii("\\frac"));
2102         globals.push_back(from_ascii("\\over"));
2103         globals.push_back(from_ascii("\\nicefrac"));
2104         globals.push_back(from_ascii("\\unitfrac"));
2105         globals.push_back(from_ascii("\\unitfracthree"));
2106         globals.push_back(from_ascii("\\unitone"));
2107         globals.push_back(from_ascii("\\unittwo"));
2108         globals.push_back(from_ascii("\\infer"));
2109         globals.push_back(from_ascii("\\atop"));
2110         globals.push_back(from_ascii("\\lefteqn"));
2111         globals.push_back(from_ascii("\\boldsymbol"));
2112         globals.push_back(from_ascii("\\bm"));
2113         globals.push_back(from_ascii("\\color"));
2114         globals.push_back(from_ascii("\\normalcolor"));
2115         globals.push_back(from_ascii("\\textcolor"));
2116         globals.push_back(from_ascii("\\cfrac"));
2117         globals.push_back(from_ascii("\\cfracleft"));
2118         globals.push_back(from_ascii("\\cfracright"));
2119         globals.push_back(from_ascii("\\dfrac"));
2120         globals.push_back(from_ascii("\\tfrac"));
2121         globals.push_back(from_ascii("\\dbinom"));
2122         globals.push_back(from_ascii("\\tbinom"));
2123         globals.push_back(from_ascii("\\hphantom"));
2124         globals.push_back(from_ascii("\\phantom"));
2125         globals.push_back(from_ascii("\\vphantom"));
2126         globals.push_back(from_ascii("\\cancel"));
2127         globals.push_back(from_ascii("\\bcancel"));
2128         globals.push_back(from_ascii("\\xcancel"));
2129         globals.push_back(from_ascii("\\cancelto"));
2130         globals.push_back(from_ascii("\\smash"));
2131         globals.push_back(from_ascii("\\mathclap"));
2132         globals.push_back(from_ascii("\\mathllap"));
2133         globals.push_back(from_ascii("\\mathrlap"));
2134         globals.push_back(from_ascii("\\ensuremath"));
2135         MathWordList const & words = mathedWordList();
2136         MathWordList::const_iterator it2;
2137         //lyxerr << "Globals completion commands: ";
2138         for (it2 = words.begin(); it2 != words.end(); ++it2) {
2139                 if (it2->second.inset != "macro" && !it2->second.hidden) {
2140                         // macros are already read from MacroTable::globalMacros()
2141                         globals.push_back('\\' + it2->first);
2142                         //lyxerr << '\\' + it2->first << ' ';
2143                 }
2144         }
2145         //lyxerr << std::endl;
2146         sort(globals.begin(), globals.end());
2147 }
2148
2149
2150 MathCompletionList::~MathCompletionList()
2151 {
2152 }
2153
2154
2155 size_type MathCompletionList::size() const
2156 {
2157         return locals.size() + globals.size();
2158 }
2159
2160
2161 docstring const & MathCompletionList::data(size_t idx) const
2162 {
2163         size_t lsize = locals.size();
2164         if (idx >= lsize)
2165                 return globals[idx - lsize];
2166         else
2167                 return locals[idx];
2168 }
2169
2170
2171 std::string MathCompletionList::icon(size_t idx) const
2172 {
2173         // get the latex command
2174         docstring cmd;
2175         size_t lsize = locals.size();
2176         if (idx >= lsize)
2177                 cmd = globals[idx - lsize];
2178         else
2179                 cmd = locals[idx];
2180
2181         // get the icon resource name by stripping the backslash
2182         docstring icon_name = frontend::Application::mathIcon(cmd.substr(1));
2183         if (icon_name.empty())
2184                 return std::string();
2185         return "images/math/" + to_utf8(icon_name);
2186 }
2187
2188 std::vector<docstring> MathCompletionList::globals;
2189
2190 } // namespace lyx