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