src/mathed/formulabase.C

   1  /*
   2 *  File:        formula.C
   3 *  Purpose:     Implementation of formula inset
   4 *  Author:      Alejandro Aguilar Sierra <asierra@servidor.unam.mx>
   5 *  Created:     January 1996
   6 *  Description: Allows the edition of math paragraphs inside Lyx.
   7 *
   8 *  Copyright: 1996-1998 Alejandro Aguilar Sierra
   9 *
  10 *  Version: 0.4, Lyx project.
  11 *
  12 *   You are free to use and modify this code under the terms of
  13 *   the GNU General Public Licence version 2 or later.
  14 */
  15
  16 #include <config.h>
  17 #include <fstream>
  18
  19 #include "Lsstream.h"
  20
  21 #ifdef __GNUG__
  22 #pragma implementation
  23 #endif
  24
  25 #include "formula.h"
  26 #include "formulamacro.h"
  27 #include "commandtags.h"
  28 #include "math_cursor.h"
  29 #include "math_parser.h"
  30 #include "BufferView.h"
  31 #include "lyxtext.h"
  32 #include "lyxfunc.h"
  33 #include "gettext.h"
  34 #include "LaTeXFeatures.h"
  35 #include "debug.h"
  36 #include "support/LOstream.h"
  37 #include "LyXView.h"
  38 #include "Painter.h"
  39 #include "font.h"
  40 #include "math_arrayinset.h"
  41 #include "math_spaceinset.h"
  42 #include "support/lyxlib.h"
  43 #include "mathed/support.h"
  44 #include "undo_funcs.h"
  45
  46 using std::endl;
  47 using std::ostream;
  48 using std::vector;
  49
  50 extern char const * latex_special_chars;
  51
  52 int greek_kb_flag = 0;
  53 extern char const * latex_mathenv[];
  54 LyXFont           * Math_Fonts = 0;
  55 MathCursor        * mathcursor = 0;
  56
  57
  58 namespace {
  59
  60
  61 // local global
  62 int sel_x;
  63 int sel_y;
  64 bool sel_flag;
  65
  66 void mathed_init_fonts();
  67
  68 string nicelabel(string const & label)
  69 {
  70         return "(" + (label.empty() ? "#" : label) + ")";
  71 }
  72
  73 void handleFont(BufferView * bv, MathTextCodes t)
  74 {
  75         if (mathcursor->Selection())
  76                 bv->lockedInsetStoreUndo(Undo::EDIT);
  77         mathcursor->handleFont(t);
  78 }
  79
  80 void handleAccent(BufferView * bv, string const & name, int code)
  81 {
  82         bv->lockedInsetStoreUndo(Undo::EDIT);
  83         mathcursor->handleAccent(name, code);
  84 }
  85
  86 void handleDelim(BufferView * bv, int l, int r)
  87 {
  88         bv->lockedInsetStoreUndo(Undo::EDIT);
  89         mathcursor->handleDelim(l, r);
  90 }
  91
  92 bool openNewInset(BufferView * bv, UpdatableInset * new_inset)
  93 {
  94         LyXText * lt = bv->getLyXText();
  95
  96         bv->beforeChange(lt);
  97         finishUndo();
  98         if (!bv->insertInset(new_inset)) {
  99                 delete new_inset;
 100                 return false;
 101         }
 102         new_inset->edit(bv, 0, 0, 0);
 103         return true;
 104 }
 105
 106
 107 } // namespaces
 108
 109
 110
 111 LyXFont WhichFont(short type, int size)
 112 {
 113         LyXFont f;
 114
 115         if (!Math_Fonts)
 116                 mathed_init_fonts();
 117
 118         switch (type) {
 119         case LM_TC_SYMB:
 120                 f = Math_Fonts[2];
 121                 break;
 122
 123         case LM_TC_BSYM:
 124                 f = Math_Fonts[2];
 125                 break;
 126
 127         case LM_TC_VAR:
 128         case LM_TC_IT:
 129                 f = Math_Fonts[0];
 130                 break;
 131
 132         case LM_TC_BF:
 133                 f = Math_Fonts[3];
 134                 break;
 135
 136         case LM_TC_SF:
 137                 f = Math_Fonts[7];
 138                 break;
 139
 140         case LM_TC_CAL:
 141                 f = Math_Fonts[4];
 142                 break;
 143
 144         case LM_TC_TT:
 145                 f = Math_Fonts[5];
 146                 break;
 147
 148         case LM_TC_SPECIAL: //f = Math_Fonts[0]; break;
 149         case LM_TC_TEXTRM:
 150         case LM_TC_TEX:
 151         case LM_TC_RM:
 152                 f = Math_Fonts[6];
 153                 break;
 154
 155         default:
 156                 f = Math_Fonts[1];
 157                 break;
 158         }
 159
 160         switch (size) {
 161         case LM_ST_DISPLAY:
 162                 if (type == LM_TC_BSYM) {
 163                         f.incSize();
 164                         f.incSize();
 165                 }
 166                 break;
 167
 168         case LM_ST_TEXT:
 169                 break;
 170
 171         case LM_ST_SCRIPT:
 172                 f.decSize();
 173                 break;
 174
 175         case LM_ST_SCRIPTSCRIPT:
 176                 f.decSize();
 177                 f.decSize();
 178                 break;
 179
 180         default:
 181                 lyxerr << "Math Error: wrong font size: " << size << endl;
 182                 break;
 183         }
 184
 185         if (type != LM_TC_TEXTRM)
 186                 f.setColor(LColor::math);
 187
 188         if (type == LM_TC_TEX)
 189                 f.setColor(LColor::latex);
 190
 191         return f;
 192 }
 193
 194
 195 namespace {
 196
 197 void mathed_init_fonts()
 198 {
 199         Math_Fonts = new LyXFont[8]; //DEC cxx cannot initialize all fonts
 200         //at once (JMarc) rc
 201
 202         for (int i = 0 ; i < 8 ; ++i) {
 203                 Math_Fonts[i] = LyXFont(LyXFont::ALL_SANE);
 204         }
 205
 206         Math_Fonts[0].setShape(LyXFont::ITALIC_SHAPE);
 207
 208         Math_Fonts[1].setFamily(LyXFont::SYMBOL_FAMILY);
 209
 210         Math_Fonts[2].setFamily(LyXFont::SYMBOL_FAMILY);
 211         Math_Fonts[2].setShape(LyXFont::ITALIC_SHAPE);
 212
 213         Math_Fonts[3].setSeries(LyXFont::BOLD_SERIES);
 214
 215         Math_Fonts[4].setFamily(LyXFont::SANS_FAMILY);
 216         Math_Fonts[4].setShape(LyXFont::ITALIC_SHAPE);
 217
 218         Math_Fonts[5].setFamily(LyXFont::TYPEWRITER_FAMILY);
 219
 220         Math_Fonts[6].setFamily(LyXFont::ROMAN_FAMILY);
 221
 222         Math_Fonts[7].setFamily(LyXFont::SANS_FAMILY);
 223 }
 224
 225
 226 // returns the nearest enclosing matrix
 227 MathArrayInset * matrixpar(int & idx)
 228 {
 229         idx = 0;
 230         return
 231                 static_cast<MathArrayInset *>
 232                         (mathcursor ? mathcursor->enclosing(LM_OT_MATRIX, idx) : 0);
 233 }
 234
 235
 236 } // namespace anon
 237
 238
 239 InsetFormulaBase::InsetFormulaBase(MathInset * par)
 240         : par_(par)
 241 {}
 242
 243
 244 InsetFormulaBase::InsetFormulaBase(InsetFormulaBase const & f)
 245         : UpdatableInset(f), par_(static_cast<MathInset *>(f.par_->clone()))
 246 {}
 247
 248
 249 InsetFormulaBase::~InsetFormulaBase()
 250 {
 251 #ifdef WITH_WARNINGS
 252 #warning leak this for a while...
 253 #endif
 254         //delete par_;
 255 }
 256
 257
 258 void InsetFormulaBase::read(Buffer const *, LyXLex & lex)
 259 {
 260         read(lex);
 261 }
 262
 263 void InsetFormulaBase::write(Buffer const *, ostream & os) const
 264 {
 265         write(os);
 266 }
 267
 268 int InsetFormulaBase::latex(Buffer const *, ostream & os,
 269         bool fragile, bool spacing) const
 270 {
 271         return latex(os, fragile, spacing);
 272 }
 273
 274 int InsetFormulaBase::ascii(Buffer const *, ostream & os, int spacing) const
 275 {
 276         return ascii(os, spacing);
 277 }
 278
 279 int InsetFormulaBase::linuxdoc(Buffer const *, ostream & os) const
 280 {
 281         return linuxdoc(os);
 282 }
 283
 284 int InsetFormulaBase::docBook(Buffer const *, ostream & os) const
 285 {
 286         return docBook(os);
 287 }
 288
 289
 290
 291 // Check if uses AMS macros
 292 void InsetFormulaBase::validate(LaTeXFeatures &) const
 293 {}
 294
 295
 296 string const InsetFormulaBase::editMessage() const
 297 {
 298         return _("Math editor mode");
 299 }
 300
 301
 302 void InsetFormulaBase::edit(BufferView * bv, int x, int /*y*/, unsigned int)
 303 {
 304         mathcursor = new MathCursor(this);
 305
 306         if (!bv->lockInset(this))
 307                 lyxerr[Debug::MATHED] << "Cannot lock inset!!!" << endl;
 308
 309         Metrics();
 310         //bv->updateInset(this, false);
 311         if (x == 0)
 312                 mathcursor->first();
 313         else
 314                 mathcursor->last();
 315         sel_x = 0;
 316         sel_y = 0;
 317         sel_flag = false;
 318 }
 319
 320
 321 void InsetFormulaBase::insetUnlock(BufferView * bv)
 322 {
 323         if (mathcursor) {
 324                 if (mathcursor->InMacroMode()) {
 325                         mathcursor->MacroModeClose();
 326                         updateLocal(bv);
 327                 }
 328                 delete mathcursor;
 329         }
 330         mathcursor = 0;
 331         bv->updateInset(this, false);
 332 }
 333
 334
 335 void InsetFormulaBase::getCursorPos(BufferView *, int & x, int & y) const
 336 {
 337         mathcursor->GetPos(x, y);
 338         x -= par_->xo();
 339         y -= par_->yo();
 340 }
 341
 342
 343 void InsetFormulaBase::toggleInsetCursor(BufferView * bv)
 344 {
 345         if (!mathcursor)
 346                 return;
 347
 348         if (isCursorVisible())
 349                 bv->hideLockedInsetCursor();
 350         else {
 351                 int x;
 352                 int y;
 353                 mathcursor->GetPos(x, y);
 354                 //x -= par_->xo();
 355                 y -= par_->yo();
 356
 357                 LyXFont   font = WhichFont(LM_TC_TEXTRM, LM_ST_TEXT);
 358                 int const asc  = lyxfont::maxAscent(font);
 359                 int const desc = lyxfont::maxDescent(font);
 360
 361                 bv->showLockedInsetCursor(x, y, asc, desc);
 362         }
 363
 364         toggleCursorVisible();
 365 }
 366
 367
 368 void InsetFormulaBase::showInsetCursor(BufferView * bv, bool)
 369 {
 370         if (!isCursorVisible()) {
 371                 if (mathcursor) {
 372                         int x;
 373                         int y;
 374                         mathcursor->GetPos(x, y);
 375                         x -= par_->xo();
 376                         y -= par_->yo();
 377                         LyXFont font   = WhichFont(LM_TC_TEXTRM, LM_ST_TEXT);
 378                         int const asc  = lyxfont::maxAscent(font);
 379                         int const desc = lyxfont::maxDescent(font);
 380                         bv->fitLockedInsetCursor(x, y, asc, desc);
 381                 }
 382                 toggleInsetCursor(bv);
 383         }
 384 }
 385
 386
 387 void InsetFormulaBase::hideInsetCursor(BufferView * bv)
 388 {
 389         if (isCursorVisible())
 390                 toggleInsetCursor(bv);
 391 }
 392
 393
 394 void InsetFormulaBase::toggleInsetSelection(BufferView * bv)
 395 {
 396         if (!mathcursor)
 397                 return;
 398
 399         bv->updateInset(this, false);
 400 }
 401
 402
 403 vector<string> const InsetFormulaBase::getLabelList() const
 404 {
 405   return std::vector<string>();
 406 }
 407
 408
 409 void InsetFormulaBase::updateLocal(BufferView * bv)
 410 {
 411         Metrics();
 412         bv->updateInset(this, true);
 413 }
 414
 415
 416 void InsetFormulaBase::Metrics() const
 417 {
 418         const_cast<MathInset *>(par_)->Metrics(LM_ST_TEXT);
 419 }
 420
 421
 422 void InsetFormulaBase::insetButtonRelease(BufferView * bv,
 423                                           int x, int y, int /*button*/)
 424 {
 425         if (mathcursor) {
 426                 hideInsetCursor(bv);
 427                 x += par_->xo();
 428                 y += par_->yo();
 429                 mathcursor->SetPos(x, y);
 430                 showInsetCursor(bv);
 431                 if (sel_flag) {
 432                         sel_flag = false;
 433                         sel_x = 0;
 434                         sel_y = 0;
 435                 }
 436                 bv->updateInset(this, false);
 437         }
 438 }
 439
 440
 441 void InsetFormulaBase::insetButtonPress(BufferView * bv,
 442                                         int x, int y, int /*button*/)
 443 {
 444         sel_flag = false;
 445         sel_x = x;
 446         sel_y = y;
 447         if (mathcursor && mathcursor->Selection()) {
 448                 mathcursor->SelClear();
 449                 bv->updateInset(this, false);
 450         }
 451 }
 452
 453
 454 void InsetFormulaBase::insetMotionNotify(BufferView * bv,
 455                                          int x, int y, int /*button*/)
 456 {
 457         if (sel_x && sel_y && abs(x-sel_x) > 4 && !sel_flag) {
 458                 sel_flag = true;
 459                 hideInsetCursor(bv);
 460                 mathcursor->SetPos(sel_x + par_->xo(), sel_y + par_->yo());
 461                 mathcursor->SelStart();
 462                 showInsetCursor(bv);
 463                 mathcursor->GetPos(sel_x, sel_y);
 464         } else if (sel_flag) {
 465                 hideInsetCursor(bv);
 466                 x += par_->xo();
 467                 y += par_->yo();
 468                 mathcursor->SetPos(x, y);
 469                 showInsetCursor(bv);
 470                 mathcursor->GetPos(x, y);
 471                 if (sel_x != x || sel_y != y)
 472                         bv->updateInset(this, false);
 473                 sel_x = x;
 474                 sel_y = y;
 475         }
 476 }
 477
 478
 479 void InsetFormulaBase::insetKeyPress(XKeyEvent *)
 480 {
 481         lyxerr[Debug::MATHED]
 482                 << "Used InsetFormulaBase::InsetKeyPress." << endl;
 483 }
 484
 485
 486
 487 UpdatableInset::RESULT
 488 InsetFormulaBase::localDispatch(BufferView * bv, kb_action action,
 489                             string const & arg)
 490 {
 491         //lyxerr << "InsetFormulaBase::LocalDispatch: act: " << action
 492         //      << " arg: '" << arg << "' cursor: " << mathcursor << "\n";
 493
 494         if (!mathcursor)
 495                 return UNDISPATCHED;
 496
 497         MathTextCodes varcode = LM_TC_MIN;
 498         bool was_macro = mathcursor->InMacroMode();
 499         bool sel = false;
 500         bool was_selection = mathcursor->Selection();
 501         RESULT result = DISPATCHED;
 502
 503         hideInsetCursor(bv);
 504
 505         if (mathcursor->getLastCode() == LM_TC_TEX)
 506                 varcode = LM_TC_TEX;
 507
 508         mathcursor->normalize();
 509
 510         switch (action) {
 511
 512                 // --- Cursor Movements ---------------------------------------------
 513
 514         case LFUN_RIGHTSEL:
 515                 sel = true; // fall through...
 516
 517         case LFUN_RIGHT:
 518                 result = DISPATCH_RESULT(mathcursor->Right(sel));
 519                 updateLocal(bv);
 520                 break;
 521
 522
 523         case LFUN_LEFTSEL:
 524                 sel = true; // fall through
 525
 526         case LFUN_LEFT:
 527                 result = DISPATCH_RESULT(mathcursor->Left(sel));
 528                 updateLocal(bv);
 529                 break;
 530
 531
 532         case LFUN_UPSEL:
 533                 sel = true;
 534
 535         case LFUN_UP:
 536                 result = DISPATCH_RESULT(mathcursor->Up(sel));
 537                 updateLocal(bv);
 538                 break;
 539
 540
 541         case LFUN_DOWNSEL:
 542                 sel = true;
 543
 544         case LFUN_DOWN:
 545                 result = DISPATCH_RESULT(mathcursor->Down(sel));
 546                 updateLocal(bv);
 547                 break;
 548
 549         case LFUN_HOME:
 550                 mathcursor->Home();
 551                 updateLocal(bv);
 552                 break;
 553
 554         case LFUN_END:
 555                 mathcursor->End();
 556                 updateLocal(bv);
 557                 break;
 558
 559         case LFUN_DELETE_LINE_FORWARD:
 560                 bv->lockedInsetStoreUndo(Undo::DELETE);
 561                 mathcursor->DelLine();
 562                 updateLocal(bv);
 563                 break;
 564
 565         case LFUN_TAB:
 566                 mathcursor->idxNext();
 567                 updateLocal(bv);
 568                 break;
 569
 570         case LFUN_SHIFT_TAB:
 571                 mathcursor->idxPrev();
 572                 updateLocal(bv);
 573                 break;
 574
 575         case LFUN_TABINSERT:
 576                 bv->lockedInsetStoreUndo(Undo::EDIT);
 577                 mathcursor->splitCell();
 578                 updateLocal(bv);
 579                 break;
 580
 581         case LFUN_BACKSPACE:
 582                 // if (!mathcursor->InMacroMode() && mathcursor->pos() == 0)
 583                 if (mathcursor->pos() == 0) {
 584                         bv->lockedInsetStoreUndo(Undo::DELETE);
 585                         mathcursor->pullArg();
 586                         bv->updateInset(this, true);
 587                         break;
 588                 }
 589                 if (mathcursor->InMacroMode())
 590                         mathcursor->Left();
 591                 else
 592                         mathcursor->plainLeft();
 593                 // fall through...
 594
 595         case LFUN_DELETE:
 596                 bv->lockedInsetStoreUndo(Undo::DELETE);
 597                 mathcursor->Delete();
 598                 bv->updateInset(this, true);
 599                 break;
 600
 601                 //    case LFUN_GETXY:
 602                 //      sprintf(dispatch_buffer, "%d %d",);
 603                 //      dispatch_result = dispatch_buffer;
 604                 //      break;
 605         case LFUN_SETXY:
 606         {
 607                 lyxerr << "LFUN_SETXY broken!\n";
 608                 int x;
 609                 int y;
 610                 int x1;
 611                 int y1;
 612                 istringstream is(arg.c_str());
 613                 is >> x >> y;
 614                 par_->GetXY(x1, y1);
 615                 mathcursor->SetPos(x1 + x, y1 + y);
 616                 updateLocal(bv);
 617         }
 618         break;
 619
 620                 // cursor selection ----------------------------
 621
 622         case LFUN_PASTE:
 623                 if (was_macro)
 624                         mathcursor->MacroModeClose();
 625                 bv->lockedInsetStoreUndo(Undo::INSERT);
 626                 mathcursor->SelPaste();
 627                 updateLocal(bv);
 628                 break;
 629
 630         case LFUN_CUT:
 631                 bv->lockedInsetStoreUndo(Undo::DELETE);
 632                 mathcursor->SelCut();
 633                 updateLocal(bv);
 634                 break;
 635
 636         case LFUN_COPY:
 637                 mathcursor->SelCopy();
 638                 break;
 639
 640         case LFUN_HOMESEL:
 641         case LFUN_ENDSEL:
 642         case LFUN_WORDRIGHTSEL:
 643         case LFUN_WORDLEFTSEL:
 644                 break;
 645
 646                 // --- accented characters ------------------------------
 647
 648         case LFUN_UMLAUT:     handleAccent(bv, "ddot", LM_ddot); break;
 649         case LFUN_CIRCUMFLEX: handleAccent(bv, "hat", LM_hat); break;
 650         case LFUN_GRAVE:      handleAccent(bv, "grave", LM_grave); break;
 651         case LFUN_ACUTE:      handleAccent(bv, "acute", LM_acute); break;
 652         case LFUN_TILDE:      handleAccent(bv, "tilde", LM_tilde); break;
 653         case LFUN_MACRON:     handleAccent(bv, "bar", LM_bar); break;
 654         case LFUN_DOT:        handleAccent(bv, "dot", LM_dot); break;
 655         case LFUN_CARON:      handleAccent(bv, "check", LM_check); break;
 656         case LFUN_BREVE:      handleAccent(bv, "breve", LM_breve); break;
 657         case LFUN_VECTOR:     handleAccent(bv, "vec", LM_vec); break;
 658
 659                 // Greek mode
 660         case LFUN_GREEK:
 661                 if (!greek_kb_flag) {
 662                         greek_kb_flag = 1;
 663                         bv->owner()->message(_("Math greek mode on"));
 664                 } else
 665                         greek_kb_flag = 0;
 666                 break;
 667
 668                 // Greek keyboard
 669         case LFUN_GREEK_TOGGLE:
 670                 greek_kb_flag = greek_kb_flag ? 0 : 2;
 671                 if (greek_kb_flag)
 672                         bv->owner()->message(_("Math greek keyboard on"));
 673                 else
 674                         bv->owner()->message(_("Math greek keyboard off"));
 675                 break;
 676
 677                 //  Math fonts
 678         case LFUN_BOLD:    handleFont(bv, LM_TC_BF); break;
 679         case LFUN_SANS:    handleFont(bv, LM_TC_SF); break;
 680         case LFUN_EMPH:    handleFont(bv, LM_TC_CAL); break;
 681         case LFUN_ROMAN:   handleFont(bv, LM_TC_RM); break;
 682         case LFUN_CODE:    handleFont(bv, LM_TC_TT); break;
 683         case LFUN_DEFAULT: handleFont(bv, LM_TC_VAR); break;
 684
 685         case LFUN_MATH_MODE:
 686                 handleFont(bv, LM_TC_TEXTRM);
 687                 //bv->owner()->message(_("math text mode toggled"));
 688                 break;
 689
 690 #ifndef NO_LATEX
 691         case LFUN_TEX:
 692                 if (!mathcursor->Selection()) {
 693                         mathcursor->handleFont(LM_TC_TEX);
 694                         //bv->owner()->message(_("TeX mode toggled"));
 695                 }
 696                 break;
 697 #endif
 698
 699         case LFUN_MATH_LIMITS:
 700                 bv->lockedInsetStoreUndo(Undo::INSERT);
 701                 if (mathcursor->toggleLimits())
 702                         updateLocal(bv);
 703                 break;
 704
 705         case LFUN_MATH_SIZE:
 706                 if (!arg.empty()) {
 707                         bv->lockedInsetStoreUndo(Undo::INSERT);
 708                         latexkeys const * l = in_word_set(arg);
 709                         mathcursor->SetSize(MathStyles(l ? l->id : static_cast<unsigned int>(-1)));
 710                         updateLocal(bv);
 711                 }
 712                 break;
 713
 714         case LFUN_INSERT_MATRIX:
 715                 if (!arg.empty()) {
 716                         bv->lockedInsetStoreUndo(Undo::INSERT);
 717                         mathcursor->Interpret("matrix " + arg);
 718                         updateLocal(bv);
 719                 }
 720                 break;
 721
 722         case LFUN_INSERT_MATH:
 723                 if (!arg.empty()) {
 724                         bv->lockedInsetStoreUndo(Undo::INSERT);
 725                         mathcursor->Interpret(arg);
 726                         updateLocal(bv);
 727                 }
 728                 break;
 729
 730         case LFUN_MATH_DELIM:
 731         {
 732                 bv->lockedInsetStoreUndo(Undo::INSERT);
 733                 int ilt = '(';
 734                 int irt = '.';
 735                 static const string vdelim("(){}[]./|");
 736                 //lyxerr << "formulabase::LFUN_MATH_DELIM, arg: '" << arg << "'\n";
 737
 738                 if (arg.empty())
 739                         break;
 740
 741                 istringstream is(arg.c_str());
 742                 string lt;
 743                 string rt;
 744                 is >> lt >> rt;
 745                 //lyxerr << "formulabase::LFUN_MATH_DELIM, lt: '" << lt << "'\n";
 746                 //lyxerr << "formulabase::LFUN_MATH_DELIM, rt: '" << rt << "'\n";
 747
 748                 if (lt.size() > 1) {
 749                         latexkeys const * l = in_word_set(lt);
 750                         if (l)
 751                                 ilt = l->id;
 752                 } else if (vdelim.find(lt[0]) != string::npos)
 753                                 ilt = lt[0];
 754
 755                 if (rt.size() > 1) {
 756                         latexkeys const * l = in_word_set(rt);
 757                         if (l)
 758                                 irt = l->id;
 759                 } else if (vdelim.find(rt[0]) != string::npos)
 760                                 irt = rt[0];
 761
 762                 handleDelim(bv, ilt, irt);
 763                 updateLocal(bv);
 764                 break;
 765         }
 766
 767         case LFUN_PROTECTEDSPACE:
 768                 bv->lockedInsetStoreUndo(Undo::INSERT);
 769                 mathcursor->insert(new MathSpaceInset(1));
 770                 updateLocal(bv);
 771                 break;
 772
 773         case LFUN_UNDO:
 774                 bv->owner()->message(_("Invalid action in math mode!"));
 775                 break;
 776
 777
 778         case LFUN_MATH_HALIGN:
 779         {
 780                 bv->lockedInsetStoreUndo(Undo::INSERT);
 781                 lyxerr << "handling halign '" << arg << "'\n";
 782                 int idx;
 783                 MathArrayInset * p = matrixpar(idx);
 784                 if (!p)
 785                         break;
 786                 p->halign(arg.size() ? arg[0] : 'c', p->col(idx));
 787                 updateLocal(bv);
 788                 break;
 789         }
 790
 791         case LFUN_MATH_VALIGN:
 792         {
 793                 bv->lockedInsetStoreUndo(Undo::INSERT);
 794                 lyxerr << "handling valign '" << arg << "'\n";
 795                 int idx;
 796                 MathArrayInset * p = matrixpar(idx);
 797                 if (!p)
 798                         break;
 799                 p->valign(arg.size() ? arg[0] : 'c');
 800                 updateLocal(bv);
 801                 break;
 802         }
 803
 804         case LFUN_MATH_ROW_INSERT:
 805         {
 806                 bv->lockedInsetStoreUndo(Undo::INSERT);
 807                 int idx;
 808                 MathArrayInset * p = matrixpar(idx);
 809                 lyxerr << " calling LFUN_MATH_ROW_INSERT on " << p << endl;
 810                 if (!p)
 811                         break;
 812                 p->addRow(p->row(idx));
 813                 updateLocal(bv);
 814                 break;
 815         }
 816
 817         case LFUN_MATH_ROW_DELETE:
 818         {
 819                 bv->lockedInsetStoreUndo(Undo::INSERT);
 820                 int idx;
 821                 MathArrayInset * p = matrixpar(idx);
 822                 lyxerr << " calling LFUN_MATH_ROW_DELETE on " << p << endl;
 823                 if (!p)
 824                         break;
 825                 p->delRow(p->row(idx));
 826                 updateLocal(bv);
 827                 break;
 828         }
 829
 830         case LFUN_MATH_COLUMN_INSERT:
 831         {
 832                 bv->lockedInsetStoreUndo(Undo::INSERT);
 833                 int idx;
 834                 MathArrayInset * p = matrixpar(idx);
 835                 if (!p)
 836                         break;
 837                 p->addCol(p->col(idx));
 838                 updateLocal(bv);
 839                 break;
 840         }
 841
 842         case LFUN_MATH_COLUMN_DELETE:
 843         {
 844                 bv->lockedInsetStoreUndo(Undo::INSERT);
 845                 int idx;
 846                 MathArrayInset * p = matrixpar(idx);
 847                 if (!p)
 848                         break;
 849                 p->delCol(p->col(idx));
 850                 updateLocal(bv);
 851                 break;
 852         }
 853
 854         case LFUN_EXEC_COMMAND:
 855                 result = UNDISPATCHED;
 856                 break;
 857
 858         default:
 859                 if ((action == -1 || action == LFUN_SELFINSERT) && !arg.empty()) {
 860                         unsigned char c = arg[0];
 861                         //lyxerr << "char: '" << c << "'  int: " << int(c) << endl;
 862                         //owner_->getIntl()->getTrans().TranslateAndInsert(c, lt);
 863                         //lyxerr << "trans: '" << c << "'  int: " << int(c) << endl;
 864                         bv->lockedInsetStoreUndo(Undo::INSERT);
 865
 866                         if (c == 0) {      // Dead key, do nothing
 867                                 //lyxerr << "deadkey" << endl;
 868                                 break;
 869                         }
 870
 871                         if (isalpha(c)) {
 872                                 if (mathcursor->getLastCode() == LM_TC_TEX) {
 873                                         mathcursor->MacroModeOpen();
 874                                         mathcursor->clearLastCode();
 875                                         varcode = LM_TC_MIN;
 876                                 } else if (!varcode) {
 877                                         short f = mathcursor->getLastCode() ?
 878                                                 mathcursor->getLastCode() :
 879                                                 mathcursor->nextCode();
 880                                         varcode = MathIsAlphaFont(f) ?
 881                                                 static_cast<MathTextCodes>(f) :
 882                                                 LM_TC_VAR;
 883                                 }
 884
 885                                 //           lyxerr << "Varcode << vardoce;
 886                                 MathTextCodes char_code = varcode;
 887                                 if (greek_kb_flag) {
 888                                         char greek[26] =
 889                                         {'A', 'B', 'X',  0 , 'E',  0 ,  0 , 'H', 'I',  0 ,
 890                                          'K',  0 , 'M', 'N', 'O',  0 ,  0 , 'P',  0 , 'T',
 891                                          'Y',  0,   0,   0,   0 , 'Z' };
 892
 893                                         if ('A' <= c && c <= 'Z' && greek[c - 'A']) {
 894                                                 char_code = LM_TC_RM;
 895                                                 c = greek[c - 'A'];
 896                                         } else
 897                                                 char_code = LM_TC_SYMB;
 898                                 }
 899
 900                                 mathcursor->insert(c, char_code);
 901
 902                                 if (greek_kb_flag && char_code == LM_TC_RM )
 903                                         mathcursor->setLastCode(LM_TC_VAR);
 904
 905                                 varcode = LM_TC_MIN;
 906
 907                                 if (greek_kb_flag < 2)
 908                                         greek_kb_flag = 0;
 909
 910                         } else if (strchr("!,:;{}", c) && (varcode == LM_TC_TEX||was_macro)) {
 911                                 mathcursor->insert(c, LM_TC_TEX);
 912                                 if (c == '{') {
 913                                         mathcursor->insert('}', LM_TC_TEX);
 914                                         mathcursor->Left();
 915                                 }
 916                                 mathcursor->clearLastCode();
 917                                 //             varcode = LM_TC_MIN;
 918                         } else if (c == '_' && varcode == LM_TC_TEX) {
 919                                 mathcursor->insert(c, LM_TC_SPECIAL);
 920                                 mathcursor->clearLastCode();
 921                                 //             varcode = LM_TC_MIN;
 922                         } else if ('0' <= c && c <= '9' && (varcode == LM_TC_TEX||was_macro)) {
 923                                 mathcursor->MacroModeOpen();
 924                                 mathcursor->clearLastCode();
 925                                 mathcursor->insert(c, LM_TC_MIN);
 926                         } else if (('0' <= c && c <= '9') || strchr(";:!|[]().,?", c)) {
 927                                 MathTextCodes code = mathcursor->getLastCode();
 928                                 if (code != LM_TC_TEXTRM)
 929                                         code = LM_TC_CONST;
 930                                 mathcursor->insert(c, code);
 931                         } else if (strchr("+/-*<>=", c)) {
 932                                 MathTextCodes code = mathcursor->getLastCode();
 933                                 if (code != LM_TC_TEXTRM)
 934                                         code = LM_TC_BOP;
 935                                 mathcursor->insert(c, code);
 936                         } else if (strchr(latex_special_chars, c) && c != '_') {
 937                                 MathTextCodes code = mathcursor->getLastCode();
 938                                 if (code != LM_TC_TEXTRM)
 939                                         code = LM_TC_SPECIAL;
 940                                 mathcursor->insert(c, code);
 941                         } else if (c == '_' || c == '^') {
 942                                 char s[2];
 943                                 s[0] = c;
 944                                 s[1] = 0;
 945                                 mathcursor->Interpret(s);
 946                         } else if (c == ' ') {
 947                                 if (!varcode) {
 948                                         short f = (mathcursor->getLastCode()) ?
 949                                                 mathcursor->getLastCode() :
 950                                                 mathcursor->nextCode();
 951                                         varcode = MathIsAlphaFont(f) ?
 952                                                 static_cast<MathTextCodes>(f) :
 953                                                 LM_TC_VAR;
 954                                 }
 955
 956                                 if (varcode == LM_TC_TEXTRM) {
 957                                         mathcursor->insert(c, LM_TC_TEXTRM);
 958                                 } else if (was_macro) {
 959                                         mathcursor->MacroModeClose();
 960                                 } else {
 961                                         if (!mathcursor->pop())
 962                                                 result = FINISHED;
 963                                         mathcursor->plainRight();
 964                                 }
 965                         } else if (c == '\'' || c == '@') {
 966                                 mathcursor->insert (c, LM_TC_VAR);
 967                         } else if (c == '\\') {
 968                                 if (was_macro)
 969                                         mathcursor->MacroModeClose();
 970                                 bv->owner()->message(_("TeX mode"));
 971                                 mathcursor->setLastCode(LM_TC_TEX);
 972                         }
 973                         updateLocal(bv);
 974                 } else if (action == LFUN_MATH_PANEL) {
 975                         result = UNDISPATCHED;
 976                 } else {
 977                         lyxerr << "Closed by action " << action << endl;
 978                         result =  FINISHED;
 979                 }
 980         }
 981
 982         mathcursor->normalize();
 983
 984         if (mathcursor && was_macro != mathcursor->InMacroMode()
 985                                 && action >= 0
 986                                 && action != LFUN_BACKSPACE)
 987                 updateLocal(bv);
 988
 989         //if (mathcursor)
 990         //              updateLocal(bv);
 991
 992         if (mathcursor && (mathcursor->Selection() || was_selection))
 993                 toggleInsetSelection(bv);
 994
 995         if (result == DISPATCHED || result == DISPATCHED_NOUPDATE ||
 996             result == UNDISPATCHED)
 997                 showInsetCursor(bv);
 998         else
 999                 bv->unlockInset(this);
1000
1001         return result;  // original version
1002 }
1003
1004
1005
1006 /* FIXME: math-greek-toggle seems to work OK, but math-greek doesn't turn
1007  * on greek mode */
1008 bool math_insert_greek(BufferView * bv, char c)
1009 {
1010         if (!bv->available())
1011                 return false;
1012
1013         if (!isalpha(c))
1014                 return false;
1015
1016         string tmp;
1017         tmp = c;
1018         if (!bv->theLockingInset() || bv->theLockingInset()->isTextInset()) {
1019                 int greek_kb_flag_save = greek_kb_flag;
1020                 InsetFormula * new_inset = new InsetFormula();
1021                 bv->beforeChange(bv->text);
1022                 if (!bv->insertInset(new_inset)) {
1023                         delete new_inset;
1024                         return false;
1025                 }
1026                 //Update(1);//BUG
1027                 new_inset->edit(bv, 0, 0, 0);
1028                 new_inset->localDispatch(bv, LFUN_SELFINSERT, tmp);
1029                 if (greek_kb_flag_save < 2) {
1030                         bv->unlockInset(new_inset); // bv->theLockingInset());
1031                         bv->text->cursorRight(bv, true);
1032                 }
1033         } else
1034                 if (bv->theLockingInset()->lyxCode() == Inset::MATH_CODE ||
1035                                 bv->theLockingInset()->lyxCode() == Inset::MATHMACRO_CODE)
1036                         static_cast<InsetFormula*>(bv->theLockingInset())->localDispatch(bv, LFUN_SELFINSERT, tmp);
1037                 else
1038                         lyxerr << "Math error: attempt to write on a wrong "
1039                                 "class of inset." << endl;
1040         return true;
1041 }
1042
1043
1044
1045 Inset::Code InsetFormulaBase::lyxCode() const
1046 {
1047         return Inset::MATH_CODE;
1048 }
1049
1050
1051 LyXFont const InsetFormulaBase::convertFont(LyXFont const & f) const
1052 {
1053         // We have already discussed what was here
1054         LyXFont font(f);
1055 #ifndef NO_LATEX
1056         font.setLatex(LyXFont::OFF);
1057 #endif
1058         return font;
1059 }
1060
1061 MathInset * InsetFormulaBase::par() const
1062 {
1063         return par_;
1064 }
1065
1066
1067 void mathDispatchCreation(BufferView * bv, string const & arg, bool display)
1068 {
1069         if (bv->available()) {
1070 // Feature "Read math inset from selection" disabled.
1071 //              // use selection if available..
1072 //              string sel;
1073 //              if (action == LFUN_MATH_IMPORT_SELECTION)
1074 //                      sel = "";
1075 //              else
1076 //                      sel = bv->getLyXText()->selectionAsString(bv->buffer());
1077
1078                         InsetFormula * f;
1079 //              if (sel.empty()) {
1080                                 f = new InsetFormula;
1081                                 if (openNewInset(bv, f)) {
1082                                         // don't do that also for LFUN_MATH_MODE unless you want end up with
1083                                         // always changing to mathrm when opening an inlined inset
1084                                         // -- I really hate "LyXfunc overloading"...
1085                                         if (display)
1086                                                 f->localDispatch(bv, LFUN_MATH_DISPLAY, string());
1087                                         f->localDispatch(bv, LFUN_INSERT_MATH, arg);
1088                                 }
1089 //              } else {
1090 //                      f = new InsetFormula(sel);
1091 //                      bv->getLyXText()->cutSelection(bv);
1092 //                      openNewInset(bv, f);
1093 //              }
1094         }
1095         bv->owner()->getLyXFunc()->setMessage(N_("Math editor mode"));
1096 }
1097
1098 void mathDispatchMathDisplay(BufferView * bv, string const & arg)
1099 {
1100         mathDispatchCreation(bv, arg, true);
1101 }
1102
1103 void mathDispatchMathMode(BufferView * bv, string const & arg)
1104 {
1105         mathDispatchCreation(bv, arg, false);
1106 }
1107
1108 void mathDispatchMathImportSelection(BufferView * bv, string const & arg)
1109 {
1110         mathDispatchCreation(bv, arg, true);
1111 }
1112
1113 void mathDispatchMathMacro(BufferView * bv, string const & arg)
1114 {
1115         if (bv->available()) {
1116                 string s(arg);
1117                 if (s.empty())
1118                         bv->owner()->getLyXFunc()->setErrorMessage(N_("Missing argument"));
1119                 else {
1120                         string const s1 = token(s, ' ', 1);
1121                         int const na = s1.empty() ? 0 : lyx::atoi(s1);
1122                         openNewInset(bv, new InsetFormulaMacro(token(s, ' ', 0), na));
1123                 }
1124         }
1125 }
1126
1127 void mathDispatchMathDelim(BufferView * bv, string const & arg)
1128 {
1129         if (bv->available()) {
1130                 if (openNewInset(bv, new InsetFormula))
1131                         bv->theLockingInset()->localDispatch(bv, LFUN_MATH_DELIM, arg);
1132         }
1133 }
1134
1135
1136 void mathDispatchInsertMatrix(BufferView * bv, string const & arg)
1137 {
1138         if (bv->available()) {
1139                 if (openNewInset(bv, new InsetFormula))
1140                         bv->theLockingInset()->localDispatch(bv, LFUN_INSERT_MATRIX, arg);
1141         }
1142 }
1143
1144 void mathDispatchInsertMath(BufferView * bv, string const & arg)
1145 {
1146         if (bv->available()) {
1147                 if (arg.size() && arg[0] == '\\') {
1148                         InsetFormula * f = new InsetFormula(arg);
1149                         openNewInset(bv, f);
1150                 } else {
1151                         mathDispatchMathMode(bv, arg);
1152                 }
1153         }
1154 }
1155