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