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