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/lstrings.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 "math_macrotable.h"
  43 #include "support/lyxlib.h"
  44 #include "mathed/support.h"
  45 #include "undo_funcs.h"
  46
  47 using std::endl;
  48 using std::ostream;
  49 using std::vector;
  50
  51 extern char const * latex_special_chars;
  52
  53 extern char const * latex_mathenv[];
  54 MathCursor        * mathcursor = 0;
  55
  56
  57 namespace {
  58
  59
  60 // local global
  61 int sel_x;
  62 int sel_y;
  63 bool sel_flag;
  64
  65 void mathed_init_fonts();
  66
  67 string nicelabel(string const & label)
  68 {
  69         return "(" + (label.empty() ? "#" : label) + ")";
  70 }
  71
  72 void handleFont(BufferView * bv, MathTextCodes t)
  73 {
  74         if (mathcursor->selection())
  75                 bv->lockedInsetStoreUndo(Undo::EDIT);
  76         mathcursor->handleFont(t);
  77 }
  78
  79 void handleAccent(BufferView * bv, string const & name)
  80 {
  81         bv->lockedInsetStoreUndo(Undo::EDIT);
  82         mathcursor->handleAccent(name);
  83 }
  84
  85 void handleDelim(BufferView * bv, int l, int r)
  86 {
  87         bv->lockedInsetStoreUndo(Undo::EDIT);
  88         mathcursor->handleDelim(l, r);
  89 }
  90
  91 bool openNewInset(BufferView * bv, UpdatableInset * new_inset)
  92 {
  93         LyXText * lt = bv->getLyXText();
  94
  95         bv->beforeChange(lt);
  96         finishUndo();
  97         if (!bv->insertInset(new_inset)) {
  98                 delete new_inset;
  99                 return false;
 100         }
 101         new_inset->edit(bv, 0, 0, 0);
 102         return true;
 103 }
 104
 105
 106 // returns the nearest enclosing grid
 107 MathArrayInset * matrixpar(int & idx)
 108 {
 109         idx = 0;
 110         return (mathcursor ? mathcursor->enclosingArray(idx) : 0);
 111 }
 112
 113
 114 } // namespace anon
 115
 116
 117
 118 InsetFormulaBase::InsetFormulaBase()
 119 {
 120 #ifdef WITH_WARNINGS
 121 #warning This is needed as long the math parser is not re-entrant
 122 #endif
 123         MathMacroTable::builtinMacros();
 124         //lyxerr << "sizeof MathInset: " << sizeof(MathInset) << "\n";
 125 }
 126
 127
 128 void InsetFormulaBase::read(Buffer const *, LyXLex & lex)
 129 {
 130         read(lex);
 131 }
 132
 133
 134 void InsetFormulaBase::write(Buffer const *, ostream & os) const
 135 {
 136         write(os);
 137 }
 138
 139 int InsetFormulaBase::latex(Buffer const *, ostream & os,
 140         bool fragile, bool spacing) const
 141 {
 142         return latex(os, fragile, spacing);
 143 }
 144
 145 int InsetFormulaBase::ascii(Buffer const *, ostream & os, int spacing) const
 146 {
 147         return ascii(os, spacing);
 148 }
 149
 150 int InsetFormulaBase::linuxdoc(Buffer const *, ostream & os) const
 151 {
 152         return linuxdoc(os);
 153 }
 154
 155 int InsetFormulaBase::docBook(Buffer const *, ostream & os) const
 156 {
 157         return docBook(os);
 158 }
 159
 160
 161
 162 // Check if uses AMS macros
 163 void InsetFormulaBase::validate(LaTeXFeatures &) const
 164 {}
 165
 166
 167 string const InsetFormulaBase::editMessage() const
 168 {
 169         return _("Math editor mode");
 170 }
 171
 172
 173 void InsetFormulaBase::edit(BufferView * bv, int x, int /*y*/, unsigned int)
 174 {
 175         mathcursor = new MathCursor(this);
 176
 177         if (!bv->lockInset(this))
 178                 lyxerr[Debug::MATHED] << "Cannot lock inset!!!" << endl;
 179
 180         metrics();
 181         //bv->updateInset(this, false);
 182         if (x == 0)
 183                 mathcursor->first();
 184         else
 185                 mathcursor->last();
 186         sel_x = 0;
 187         sel_y = 0;
 188         sel_flag = false;
 189 }
 190
 191
 192 void InsetFormulaBase::edit(BufferView * bv, bool front)
 193 {
 194         edit(bv, front ? 0 : 1, 0, 0);
 195 }
 196
 197
 198 void InsetFormulaBase::insetUnlock(BufferView * bv)
 199 {
 200         if (mathcursor) {
 201                 if (mathcursor->inMacroMode()) {
 202                         mathcursor->macroModeClose();
 203                         updateLocal(bv, true);
 204                 }
 205                 delete mathcursor;
 206                 mathcursor = 0;
 207         }
 208         bv->updateInset(this, false);
 209 }
 210
 211
 212 void InsetFormulaBase::getCursorPos(BufferView *, int & x, int & y) const
 213 {
 214         mathcursor->getPos(x, y);
 215         x -= par()->xo();
 216         y -= par()->yo();
 217 }
 218
 219
 220 void InsetFormulaBase::toggleInsetCursor(BufferView * bv)
 221 {
 222         if (!mathcursor)
 223                 return;
 224
 225         if (isCursorVisible())
 226                 bv->hideLockedInsetCursor();
 227         else {
 228                 int x;
 229                 int y;
 230                 mathcursor->getPos(x, y);
 231                 //x -= par()->xo();
 232                 y -= par()->yo();
 233                 int asc;
 234                 int desc;
 235                 math_font_max_dim(LM_TC_TEXTRM, LM_ST_TEXT, asc, desc);
 236                 bv->showLockedInsetCursor(x, y, asc, desc);
 237         }
 238
 239         toggleCursorVisible();
 240 }
 241
 242
 243 void InsetFormulaBase::showInsetCursor(BufferView * bv, bool)
 244 {
 245         if (!isCursorVisible()) {
 246                 if (mathcursor) {
 247                         int x;
 248                         int y;
 249                         mathcursor->getPos(x, y);
 250                         x -= par()->xo();
 251                         y -= par()->yo();
 252                         int asc;
 253                         int desc;
 254                         math_font_max_dim(LM_TC_TEXTRM, LM_ST_TEXT, asc, desc);
 255                         bv->fitLockedInsetCursor(x, y, asc, desc);
 256                 }
 257                 toggleInsetCursor(bv);
 258         }
 259 }
 260
 261
 262 void InsetFormulaBase::hideInsetCursor(BufferView * bv)
 263 {
 264         if (isCursorVisible())
 265                 toggleInsetCursor(bv);
 266 }
 267
 268
 269 void InsetFormulaBase::toggleInsetSelection(BufferView * bv)
 270 {
 271         if (mathcursor)
 272                 bv->updateInset(this, false);
 273 }
 274
 275
 276 vector<string> const InsetFormulaBase::getLabelList() const
 277 {
 278   return std::vector<string>();
 279 }
 280
 281
 282 void InsetFormulaBase::updateLocal(BufferView * bv, bool dirty)
 283 {
 284         metrics();
 285         bv->updateInset(this, dirty);
 286 }
 287
 288
 289 void InsetFormulaBase::insetButtonRelease(BufferView * bv,
 290                                           int x, int y, int /*button*/)
 291 {
 292         if (mathcursor) {
 293                 hideInsetCursor(bv);
 294                 x += par()->xo();
 295                 y += par()->yo();
 296                 mathcursor->setPos(x, y);
 297                 showInsetCursor(bv);
 298                 if (sel_flag) {
 299                         sel_flag = false;
 300                         sel_x = 0;
 301                         sel_y = 0;
 302                 }
 303                 bv->updateInset(this, false);
 304         }
 305 }
 306
 307
 308 void InsetFormulaBase::insetButtonPress(BufferView * bv,
 309                                         int x, int y, int /*button*/)
 310 {
 311         sel_flag = false;
 312         sel_x = x;
 313         sel_y = y;
 314         if (mathcursor && mathcursor->selection()) {
 315                 mathcursor->selClear();
 316                 bv->updateInset(this, false);
 317         }
 318 }
 319
 320
 321 void InsetFormulaBase::insetMotionNotify(BufferView * bv,
 322                                          int x, int y, int /*button*/)
 323 {
 324         if (sel_x && sel_y && abs(x-sel_x) > 4 && !sel_flag) {
 325                 sel_flag = true;
 326                 hideInsetCursor(bv);
 327                 mathcursor->setPos(sel_x + par()->xo(), sel_y + par()->yo());
 328                 mathcursor->selStart();
 329                 showInsetCursor(bv);
 330                 mathcursor->getPos(sel_x, sel_y);
 331         } else if (sel_flag) {
 332                 hideInsetCursor(bv);
 333                 x += par()->xo();
 334                 y += par()->yo();
 335                 mathcursor->setPos(x, y);
 336                 showInsetCursor(bv);
 337                 mathcursor->getPos(x, y);
 338                 if (sel_x != x || sel_y != y)
 339                         bv->updateInset(this, false);
 340                 sel_x = x;
 341                 sel_y = y;
 342         }
 343 }
 344
 345
 346 void InsetFormulaBase::insetKeyPress(XKeyEvent *)
 347 {
 348         lyxerr[Debug::MATHED] << "Used InsetFormulaBase::InsetKeyPress." << endl;
 349 }
 350
 351
 352
 353 UpdatableInset::RESULT
 354 InsetFormulaBase::localDispatch(BufferView * bv, kb_action action,
 355                             string const & arg)
 356 {
 357         //lyxerr << "InsetFormulaBase::LocalDispatch: act: " << action
 358         //      << " arg: '" << arg << "' cursor: " << mathcursor << "\n";
 359
 360         static int greek_kb_flag = 0;
 361
 362         if (!mathcursor)
 363                 return UNDISPATCHED;
 364
 365         MathTextCodes varcode = LM_TC_MIN;
 366         bool was_macro = mathcursor->inMacroMode();
 367         bool sel = false;
 368         bool was_selection = mathcursor->selection();
 369         RESULT result = DISPATCHED;
 370
 371         hideInsetCursor(bv);
 372
 373         if (mathcursor->getLastCode() == LM_TC_TEX)
 374                 varcode = LM_TC_TEX;
 375
 376         mathcursor->normalize();
 377
 378         switch (action) {
 379
 380                 // --- Cursor Movements ---------------------------------------------
 381
 382         case LFUN_RIGHTSEL:
 383                 sel = true; // fall through...
 384
 385         case LFUN_RIGHT:
 386                 result = DISPATCH_RESULT(mathcursor->right(sel));
 387                 updateLocal(bv, false);
 388                 break;
 389
 390
 391         case LFUN_LEFTSEL:
 392                 sel = true; // fall through
 393
 394         case LFUN_LEFT:
 395                 result = DISPATCH_RESULT(mathcursor->left(sel));
 396                 updateLocal(bv, false);
 397                 break;
 398
 399
 400         case LFUN_UPSEL:
 401                 sel = true;
 402
 403         case LFUN_UP:
 404                 result = DISPATCH_RESULT(mathcursor->up(sel));
 405                 updateLocal(bv, false);
 406                 break;
 407
 408
 409         case LFUN_DOWNSEL:
 410                 sel = true;
 411
 412         case LFUN_DOWN:
 413                 result = DISPATCH_RESULT(mathcursor->down(sel));
 414                 updateLocal(bv, false);
 415                 break;
 416
 417         case LFUN_HOME:
 418                 mathcursor->home();
 419                 updateLocal(bv, false);
 420                 break;
 421
 422         case LFUN_END:
 423                 mathcursor->end();
 424                 updateLocal(bv, false);
 425                 break;
 426
 427         case LFUN_DELETE_LINE_FORWARD:
 428                 bv->lockedInsetStoreUndo(Undo::DELETE);
 429                 mathcursor->delLine();
 430                 updateLocal(bv, true);
 431                 break;
 432
 433         case LFUN_TAB:
 434                 mathcursor->idxNext();
 435                 updateLocal(bv, false);
 436                 break;
 437
 438         case LFUN_SHIFT_TAB:
 439                 mathcursor->idxPrev();
 440                 updateLocal(bv, false);
 441                 break;
 442
 443         case LFUN_TABINSERT:
 444                 bv->lockedInsetStoreUndo(Undo::EDIT);
 445                 mathcursor->splitCell();
 446                 updateLocal(bv, true);
 447                 break;
 448
 449         case LFUN_BACKSPACE:
 450                 bv->lockedInsetStoreUndo(Undo::DELETE);
 451                 mathcursor->backspace();
 452                 bv->updateInset(this, true);
 453                 break;
 454
 455         case LFUN_DELETE:
 456                 bv->lockedInsetStoreUndo(Undo::DELETE);
 457                 mathcursor->erase();
 458                 bv->updateInset(this, true);
 459                 break;
 460
 461                 //    case LFUN_GETXY:
 462                 //      sprintf(dispatch_buffer, "%d %d",);
 463                 //      dispatch_result = dispatch_buffer;
 464                 //      break;
 465         case LFUN_SETXY:
 466         {
 467                 lyxerr << "LFUN_SETXY broken!\n";
 468                 int x;
 469                 int y;
 470                 int x1;
 471                 int y1;
 472                 istringstream is(arg.c_str());
 473                 is >> x >> y;
 474                 par()->getXY(x1, y1);
 475                 mathcursor->setPos(x1 + x, y1 + y);
 476                 updateLocal(bv, false);
 477         }
 478         break;
 479
 480
 481         case LFUN_PASTE:
 482                 if (was_macro)
 483                         mathcursor->macroModeClose();
 484                 bv->lockedInsetStoreUndo(Undo::INSERT);
 485                 mathcursor->selPaste();
 486                 updateLocal(bv, true);
 487                 break;
 488
 489         case LFUN_CUT:
 490                 bv->lockedInsetStoreUndo(Undo::DELETE);
 491                 mathcursor->selCut();
 492                 updateLocal(bv, true);
 493                 break;
 494
 495         case LFUN_COPY:
 496                 mathcursor->selCopy();
 497                 break;
 498
 499         case LFUN_HOMESEL:
 500         case LFUN_ENDSEL:
 501         case LFUN_WORDRIGHTSEL:
 502         case LFUN_WORDLEFTSEL:
 503                 break;
 504
 505                 // --- accented characters ------------------------------
 506
 507         case LFUN_UMLAUT:     handleAccent(bv, "ddot"); break;
 508         case LFUN_CIRCUMFLEX: handleAccent(bv, "hat"); break;
 509         case LFUN_GRAVE:      handleAccent(bv, "grave"); break;
 510         case LFUN_ACUTE:      handleAccent(bv, "acute"); break;
 511         case LFUN_TILDE:      handleAccent(bv, "tilde"); break;
 512         case LFUN_MACRON:     handleAccent(bv, "bar"); break;
 513         case LFUN_DOT:        handleAccent(bv, "dot"); break;
 514         case LFUN_CARON:      handleAccent(bv, "check"); break;
 515         case LFUN_BREVE:      handleAccent(bv, "breve"); break;
 516         case LFUN_VECTOR:     handleAccent(bv, "vec"); break;
 517
 518                 // Greek mode
 519         case LFUN_GREEK:
 520                 if (!greek_kb_flag) {
 521                         greek_kb_flag = 1;
 522                         bv->owner()->message(_("Math greek mode on"));
 523                 } else
 524                         greek_kb_flag = 0;
 525                 break;
 526
 527                 // Greek keyboard
 528         case LFUN_GREEK_TOGGLE:
 529                 greek_kb_flag = greek_kb_flag ? 0 : 2;
 530                 if (greek_kb_flag)
 531                         bv->owner()->message(_("Math greek keyboard on"));
 532                 else
 533                         bv->owner()->message(_("Math greek keyboard off"));
 534                 break;
 535
 536                 //  Math fonts
 537         case LFUN_BOLD:    handleFont(bv, LM_TC_BF); break;
 538         case LFUN_SANS:    handleFont(bv, LM_TC_SF); break;
 539         case LFUN_EMPH:    handleFont(bv, LM_TC_CAL); break;
 540         case LFUN_ROMAN:   handleFont(bv, LM_TC_RM); break;
 541         case LFUN_CODE:    handleFont(bv, LM_TC_TT); break;
 542         case LFUN_DEFAULT: handleFont(bv, LM_TC_VAR); break;
 543
 544         case LFUN_MATH_MODE:
 545                 handleFont(bv, LM_TC_TEXTRM);
 546                 //bv->owner()->message(_("math text mode toggled"));
 547                 break;
 548
 549         case LFUN_MATH_LIMITS:
 550                 bv->lockedInsetStoreUndo(Undo::INSERT);
 551                 if (mathcursor->toggleLimits())
 552                         updateLocal(bv, true);
 553                 break;
 554
 555         case LFUN_MATH_SIZE:
 556                 if (!arg.empty()) {
 557                         bv->lockedInsetStoreUndo(Undo::INSERT);
 558                         latexkeys const * l = in_word_set(arg);
 559                         mathcursor->setSize(MathStyles(l ? l->id : static_cast<unsigned int>(-1)));
 560                         updateLocal(bv, true);
 561                 }
 562                 break;
 563
 564         case LFUN_INSERT_MATRIX:
 565                 if (!arg.empty()) {
 566                         bv->lockedInsetStoreUndo(Undo::INSERT);
 567                         mathcursor->interpret("matrix " + arg);
 568                         updateLocal(bv, true);
 569                 }
 570                 break;
 571
 572         case LFUN_INSERT_MATH:
 573                 if (!arg.empty()) {
 574                         bv->lockedInsetStoreUndo(Undo::INSERT);
 575                         mathcursor->interpret(arg);
 576                         updateLocal(bv, true);
 577                 }
 578                 break;
 579
 580         case LFUN_MATH_SPACE:
 581         {
 582                 bv->lockedInsetStoreUndo(Undo::EDIT);
 583                 MathSpaceInset * p = mathcursor->prevSpaceInset();
 584                 if (p)
 585                         p->incSpace();
 586                 else
 587                         mathcursor->insert(new MathSpaceInset(1));
 588                 updateLocal(bv, true);
 589                 break;
 590         }
 591
 592         case LFUN_MATH_DELIM:
 593         {
 594                 bv->lockedInsetStoreUndo(Undo::INSERT);
 595                 static const string vdelim("(){}[]./|");
 596                 //lyxerr << "formulabase::LFUN_MATH_DELIM, arg: '" << arg << "'\n";
 597
 598                 if (arg.empty())
 599                         break;
 600
 601                 // try to read integers first
 602                 int ilt = '(';
 603                 int irt = '.';
 604                 istringstream is(arg.c_str());
 605                 is >> ilt >> irt;
 606
 607                 if (!is) { // ok, the beasties are no integers... try something else
 608                         ilt = '(';
 609                         irt = '.';
 610
 611                         istringstream is(arg.c_str());
 612                         string lt;
 613                         string rt;
 614                         is >> lt >> rt;
 615                         //lyxerr << "formulabase::LFUN_MATH_DELIM, lt: '" << lt << "'\n";
 616                         //lyxerr << "formulabase::LFUN_MATH_DELIM, rt: '" << rt << "'\n";
 617
 618                         if (lt.size() > 1) {
 619                                 latexkeys const * l = in_word_set(lt);
 620                                 if (l)
 621                                         ilt = l->id;
 622                         } else if (vdelim.find(lt[0]) != string::npos)
 623                                         ilt = lt[0];
 624
 625                         if (rt.size() > 1) {
 626                                 latexkeys const * l = in_word_set(rt);
 627                                 if (l)
 628                                         irt = l->id;
 629                         } else if (vdelim.find(rt[0]) != string::npos)
 630                                         irt = rt[0];
 631                 }
 632
 633                 handleDelim(bv, ilt, irt);
 634                 updateLocal(bv, true);
 635                 break;
 636         }
 637
 638         case LFUN_PROTECTEDSPACE:
 639                 //lyxerr << " called LFUN_PROTECTEDSPACE\n";
 640                 bv->lockedInsetStoreUndo(Undo::INSERT);
 641                 mathcursor->insert(new MathSpaceInset(1));
 642                 updateLocal(bv, true);
 643                 break;
 644
 645         case LFUN_UNDO:
 646                 bv->owner()->message(_("Invalid action in math mode!"));
 647                 break;
 648
 649
 650         case LFUN_MATH_HALIGN:
 651         {
 652                 bv->lockedInsetStoreUndo(Undo::INSERT);
 653                 lyxerr << "handling halign '" << arg << "'\n";
 654                 int idx;
 655                 MathArrayInset * p = matrixpar(idx);
 656                 if (!p)
 657                         break;
 658                 p->halign(arg.size() ? arg[0] : 'c', p->col(idx));
 659                 updateLocal(bv, true);
 660                 break;
 661         }
 662
 663         case LFUN_MATH_VALIGN:
 664         {
 665                 bv->lockedInsetStoreUndo(Undo::INSERT);
 666                 lyxerr << "handling valign '" << arg << "'\n";
 667                 int idx;
 668                 MathArrayInset * p = matrixpar(idx);
 669                 if (!p)
 670                         break;
 671                 p->valign(arg.size() ? arg[0] : 'c');
 672                 updateLocal(bv, true);
 673                 break;
 674         }
 675
 676         case LFUN_MATH_ROW_INSERT:
 677         {
 678                 bv->lockedInsetStoreUndo(Undo::INSERT);
 679                 int idx;
 680                 MathArrayInset * p = matrixpar(idx);
 681                 lyxerr << " calling LFUN_MATH_ROW_INSERT on " << p << endl;
 682                 if (!p)
 683                         break;
 684                 p->addRow(p->row(idx));
 685                 updateLocal(bv, true);
 686                 break;
 687         }
 688
 689         case LFUN_MATH_ROW_DELETE:
 690         {
 691                 bv->lockedInsetStoreUndo(Undo::INSERT);
 692                 int idx;
 693                 MathArrayInset * p = matrixpar(idx);
 694                 lyxerr << " calling LFUN_MATH_ROW_DELETE on " << p << endl;
 695                 if (!p)
 696                         break;
 697                 p->delRow(p->row(idx));
 698                 updateLocal(bv, true);
 699                 break;
 700         }
 701
 702         case LFUN_MATH_COLUMN_INSERT:
 703         {
 704                 bv->lockedInsetStoreUndo(Undo::INSERT);
 705                 int idx;
 706                 MathArrayInset * p = matrixpar(idx);
 707                 if (!p)
 708                         break;
 709                 p->addCol(p->col(idx));
 710                 updateLocal(bv, true);
 711                 break;
 712         }
 713
 714         case LFUN_MATH_COLUMN_DELETE:
 715         {
 716                 bv->lockedInsetStoreUndo(Undo::INSERT);
 717                 int idx;
 718                 MathArrayInset * p = matrixpar(idx);
 719                 if (!p)
 720                         break;
 721                 p->delCol(p->col(idx));
 722                 updateLocal(bv, true);
 723                 break;
 724         }
 725
 726         case LFUN_EXEC_COMMAND:
 727                 result = UNDISPATCHED;
 728                 break;
 729
 730         default:
 731                 if ((action == -1 || action == LFUN_SELFINSERT) && !arg.empty()) {
 732                         unsigned char c = arg[0];
 733
 734                         lyxerr << "Action: " << action << endl;
 735
 736                         lyxerr << "char: '" << c << "'  int: " << int(c) << endl;
 737                         //owner_->getIntl()->getTrans().TranslateAndInsert(c, lt);
 738                         //lyxerr << "trans: '" << c << "'  int: " << int(c) << endl;
 739                         bv->lockedInsetStoreUndo(Undo::INSERT);
 740
 741                         if (c == 0) {      // Dead key, do nothing
 742                                 //lyxerr << "deadkey" << endl;
 743                                 break;
 744                         }
 745
 746                         if (isalpha(c)) {
 747                                 if (mathcursor->getLastCode() == LM_TC_TEX) {
 748                                         mathcursor->macroModeOpen();
 749                                         mathcursor->clearLastCode();
 750                                         varcode = LM_TC_MIN;
 751                                 } else if (!varcode) {
 752                                         MathTextCodes f = mathcursor->getLastCode() ?
 753                                                 mathcursor->getLastCode() :
 754                                                 mathcursor->nextCode();
 755                                         varcode = MathIsAlphaFont(f) ?
 756                                                 static_cast<MathTextCodes>(f) :
 757                                                 LM_TC_VAR;
 758                                 }
 759
 760                                 //           lyxerr << "Varcode << vardoce;
 761                                 MathTextCodes char_code = varcode;
 762                                 if (greek_kb_flag) {
 763                                         char greek[26] =
 764                                         {'A', 'B', 'X',  0 , 'E',  0 ,  0 , 'H', 'I',  0 ,
 765                                          'K',  0 , 'M', 'N', 'O',  0 ,  0 , 'P',  0 , 'T',
 766                                          0,  0,   0,   0,   0 , 'Z' };
 767
 768                                         if ('A' <= c && c <= 'Z' && greek[c - 'A']) {
 769                                                 char_code = LM_TC_RM;
 770                                                 c = greek[c - 'A'];
 771                                         } else
 772                                                 char_code = LM_TC_SYMB;
 773                                 }
 774
 775                                 mathcursor->insert(c, char_code);
 776
 777                                 if (greek_kb_flag && char_code == LM_TC_RM)
 778                                         mathcursor->setLastCode(LM_TC_VAR);
 779
 780                                 varcode = LM_TC_MIN;
 781
 782                                 if (greek_kb_flag < 2)
 783                                         greek_kb_flag = 0;
 784
 785                         } else if (strchr("!,:;{}", c) && (varcode == LM_TC_TEX||was_macro)) {
 786                                 mathcursor->insert(c, LM_TC_TEX);
 787                                 if (c == '{') {
 788                                         mathcursor->insert('}', LM_TC_TEX);
 789                                         mathcursor->left();
 790                                 }
 791                                 mathcursor->clearLastCode();
 792                                 //             varcode = LM_TC_MIN;
 793                         } else if (c == '_' && varcode == LM_TC_TEX) {
 794                                 mathcursor->insert(c, LM_TC_SPECIAL);
 795                                 mathcursor->clearLastCode();
 796                                 //             varcode = LM_TC_MIN;
 797                         } else if ('0' <= c && c <= '9' && (varcode == LM_TC_TEX||was_macro)) {
 798                                 mathcursor->macroModeOpen();
 799                                 mathcursor->clearLastCode();
 800                                 mathcursor->insert(c, LM_TC_MIN);
 801                         } else if (('0' <= c && c <= '9') || strchr(";:!|[]().,?", c)) {
 802                                 MathTextCodes code = mathcursor->getLastCode();
 803                                 if (code != LM_TC_TEXTRM)
 804                                         code = LM_TC_CONST;
 805                                 mathcursor->insert(c, code);
 806                         } else if (strchr("+/-*<>=", c)) {
 807                                 MathTextCodes code = mathcursor->getLastCode();
 808                                 if (code != LM_TC_TEXTRM)
 809                                         code = LM_TC_BOP;
 810                                 mathcursor->insert(c, code);
 811                         } else if (strchr(latex_special_chars, c) && c != '_') {
 812                                 MathTextCodes code = mathcursor->getLastCode();
 813                                 if (code != LM_TC_TEXTRM)
 814                                         code = LM_TC_SPECIAL;
 815                                 mathcursor->insert(c, code);
 816                         } else if (c == '_' || c == '^') {
 817                                 char s[2];
 818                                 s[0] = c;
 819                                 s[1] = 0;
 820                                 mathcursor->interpret(s);
 821                         } else if (c == ' ') {
 822                                 if (!varcode) {
 823                                         MathTextCodes f = (mathcursor->getLastCode()) ?
 824                                                 mathcursor->getLastCode() :
 825                                                 mathcursor->nextCode();
 826                                         varcode = MathIsAlphaFont(f) ? f : LM_TC_VAR;
 827                                 }
 828
 829                                 if (varcode == LM_TC_TEXTRM)
 830                                         mathcursor->insert(c, LM_TC_TEXTRM);
 831                                 else if (was_macro)
 832                                         mathcursor->macroModeClose();
 833                                 else if (mathcursor->pop())
 834                                         mathcursor->plainRight();
 835                                 else {
 836                                         // this would not work if the inset is in an table!
 837                                         //bv->text->cursorRight(bv, true);
 838                                         result = FINISHED;
 839                                 }
 840                         } else if (c == '\'' || c == '@') {
 841                                 mathcursor->insert(c, LM_TC_VAR);
 842                         } else if (c == '\\') {
 843                                 if (was_macro)
 844                                         mathcursor->macroModeClose();
 845                                 bv->owner()->message(_("TeX mode"));
 846                                 mathcursor->setLastCode(LM_TC_TEX);
 847                         }
 848                         updateLocal(bv, true);
 849                 } else if (action == LFUN_MATH_PANEL) {
 850                         result = UNDISPATCHED;
 851                 } else {
 852                         lyxerr << "Closed by action " << action << endl;
 853                         result =  FINISHED;
 854                 }
 855         }
 856
 857         mathcursor->normalize();
 858
 859         if (was_macro != mathcursor->inMacroMode()
 860                                 && action >= 0 && action != LFUN_BACKSPACE)
 861                 updateLocal(bv, true);
 862
 863         if (mathcursor->selection() || was_selection)
 864                 toggleInsetSelection(bv);
 865
 866         if (result == DISPATCHED || result == DISPATCHED_NOUPDATE ||
 867             result == UNDISPATCHED)
 868                 showInsetCursor(bv);
 869         else
 870                 bv->unlockInset(this);
 871
 872         return result;  // original version
 873 }
 874
 875
 876 Inset::Code InsetFormulaBase::lyxCode() const
 877 {
 878         return Inset::MATH_CODE;
 879 }
 880
 881
 882 void mathDispatchCreation(BufferView * bv, string const & arg, bool display)
 883 {
 884         if (bv->available()) {
 885 // Feature "Read math inset from selection" disabled.
 886 //              // use selection if available..
 887 //              string sel;
 888 //              if (action == LFUN_MATH_IMPORT_SELECTION)
 889 //                      sel = "";
 890 //              else
 891 //                      sel = bv->getLyXText()->selectionAsString(bv->buffer());
 892
 893                         InsetFormula * f;
 894 //              if (sel.empty()) {
 895                                 f = new InsetFormula;
 896                                 if (openNewInset(bv, f)) {
 897                                         // don't do that also for LFUN_MATH_MODE unless you want end up with
 898                                         // always changing to mathrm when opening an inlined inset
 899                                         // -- I really hate "LyXfunc overloading"...
 900                                         if (display)
 901                                                 f->localDispatch(bv, LFUN_MATH_DISPLAY, string());
 902                                         f->localDispatch(bv, LFUN_INSERT_MATH, arg);
 903                                 }
 904 //              } else {
 905 //                      f = new InsetFormula(sel);
 906 //                      bv->getLyXText()->cutSelection(bv);
 907 //                      openNewInset(bv, f);
 908 //              }
 909         }
 910         bv->owner()->getLyXFunc()->setMessage(N_("Math editor mode"));
 911 }
 912
 913 void mathDispatchMathDisplay(BufferView * bv, string const & arg)
 914 {
 915         mathDispatchCreation(bv, arg, true);
 916 }
 917
 918 void mathDispatchMathMode(BufferView * bv, string const & arg)
 919 {
 920         mathDispatchCreation(bv, arg, false);
 921 }
 922
 923 void mathDispatchMathImportSelection(BufferView * bv, string const & arg)
 924 {
 925         mathDispatchCreation(bv, arg, true);
 926 }
 927
 928 void mathDispatchMathMacro(BufferView * bv, string const & arg)
 929 {
 930         if (bv->available()) {
 931                 if (arg.empty())
 932                         bv->owner()->getLyXFunc()->setErrorMessage(N_("Missing argument"));
 933                 else {
 934                         string s(arg);
 935                         string const s1 = token(s, ' ', 1);
 936                         int const na = s1.empty() ? 0 : lyx::atoi(s1);
 937                         openNewInset(bv, new InsetFormulaMacro(token(s, ' ', 0), na));
 938                 }
 939         }
 940 }
 941
 942 void mathDispatchMathDelim(BufferView * bv, string const & arg)
 943 {
 944         if (bv->available()) {
 945                 if (openNewInset(bv, new InsetFormula))
 946                         bv->theLockingInset()->localDispatch(bv, LFUN_MATH_DELIM, arg);
 947         }
 948 }
 949
 950
 951 void mathDispatchInsertMatrix(BufferView * bv, string const & arg)
 952 {
 953         if (bv->available()) {
 954                 if (openNewInset(bv, new InsetFormula))
 955                         bv->theLockingInset()->localDispatch(bv, LFUN_INSERT_MATRIX, arg);
 956         }
 957 }
 958
 959 void mathDispatchInsertMath(BufferView * bv, string const & arg)
 960 {
 961         if (bv->available()) {
 962                 if (arg.size() && arg[0] == '\\')
 963                         openNewInset(bv, new InsetFormula(arg));
 964                 else
 965                         mathDispatchMathMode(bv, arg);
 966         }
 967 }
 968