src/mathed/formulabase.C

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