src/mathed/formulabase.C

   1 /*
   2 *  File:        formulabase.C
   3 *  Purpose:     Implementation of common parts of the LyX  math insets
   4 *  Author:      Alejandro Aguilar Sierra <asierra@servidor.unam.mx>
   5 *  Created:     January 1996
   6 *
   7 *  Copyright: 1996-1998 Alejandro Aguilar Sierra
   8 *
   9 *  Version: 0.4, Lyx project.
  10 *
  11 *   You are free to use and modify this code under the terms of
  12 *   the GNU General Public Licence version 2 or later.
  13 */
  14
  15 #include <config.h>
  16 #include <fstream>
  17
  18 #include "Lsstream.h"
  19 #include "support/LAssert.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 "BufferView.h"
  29 #include "lyxtext.h"
  30 #include "lyxfunc.h"
  31 #include "gettext.h"
  32 #include "LaTeXFeatures.h"
  33 #include "debug.h"
  34 #include "math_support.h"
  35 #include "support/lstrings.h"
  36 #include "LyXView.h"
  37 #include "Painter.h"
  38 #include "font.h"
  39 #include "math_cursor.h"
  40 #include "math_arrayinset.h"
  41 #include "math_spaceinset.h"
  42 #include "math_macrotable.h"
  43 #include "math_factory.h"
  44 #include "math_parser.h"
  45 #include "undo_funcs.h"
  46
  47 using std::endl;
  48 using std::ostream;
  49 using std::vector;
  50
  51 MathCursor * mathcursor = 0;
  52
  53
  54 namespace {
  55
  56
  57 // local global
  58 int first_x;
  59 int first_y;
  60 int hack_x;
  61 int hack_y;
  62 int hack_button;
  63
  64
  65 void handleFont(BufferView * bv, MathTextCodes t)
  66 {
  67         if (mathcursor->selection())
  68                 bv->lockedInsetStoreUndo(Undo::EDIT);
  69         mathcursor->handleFont(t);
  70 }
  71
  72
  73 void handleAccent(BufferView * bv, string const & name)
  74 {
  75         bv->lockedInsetStoreUndo(Undo::EDIT);
  76         mathcursor->insert(createMathInset(name));
  77 }
  78
  79
  80 bool openNewInset(BufferView * bv, UpdatableInset * new_inset)
  81 {
  82         if (!bv->insertInset(new_inset)) {
  83                 delete new_inset;
  84                 return false;
  85         }
  86         new_inset->edit(bv, 0, 0, 0);
  87         return true;
  88 }
  89
  90
  91 } // namespace anon
  92
  93
  94
  95 InsetFormulaBase::InsetFormulaBase()
  96         : view_(0), font_(), xo_(0), yo_(0)
  97 {
  98         // This is needed as long the math parser is not re-entrant
  99         MathMacroTable::builtinMacros();
 100         //lyxerr << "sizeof MathInset: " << sizeof(MathInset) << "\n";
 101 }
 102
 103
 104 // Check if uses AMS macros
 105 void InsetFormulaBase::validate(LaTeXFeatures &) const
 106 {}
 107
 108
 109 void InsetFormulaBase::metrics(BufferView * bv, LyXFont const & f) const
 110 {
 111         font_ = f;
 112         metrics(bv);
 113 }
 114
 115 void InsetFormulaBase::metrics(BufferView * bv) const
 116 {
 117         if (bv)
 118                 view_ = bv;
 119         MathMetricsInfo mi(view_, font_, display() ? LM_ST_DISPLAY : LM_ST_TEXT);
 120         par()->metrics(mi);
 121 }
 122
 123
 124 string const InsetFormulaBase::editMessage() const
 125 {
 126         return _("Math editor mode");
 127 }
 128
 129
 130 void InsetFormulaBase::edit(BufferView * bv, int x, int /*y*/, unsigned int)
 131 {
 132         if (!bv->lockInset(this))
 133                 lyxerr[Debug::MATHED] << "Cannot lock inset!!!" << endl;
 134
 135         //lyxerr << "edit: " << x  << " " << y << " button: " << button << "\n";
 136         if (!mathcursor) {
 137                 mathcursor = new MathCursor(this, x == 0);
 138                 metrics(bv);
 139                 // handle ignored click
 140                 if (hack_x || hack_y) {
 141                         insetButtonPress(bv, hack_x, hack_y, hack_button);
 142                         hack_x = hack_y = 0;
 143                 }
 144         } else
 145                 metrics(bv);
 146         // if that is removed, we won't get the magenta box when entering an
 147         // inset for the first time
 148         bv->updateInset(this, false);
 149 }
 150
 151
 152 void InsetFormulaBase::edit(BufferView * bv, bool front)
 153 {
 154         // looks hackish but seems to work
 155         edit(bv, front ? 0 : 1, 0, 0);
 156 }
 157
 158
 159 void InsetFormulaBase::insetUnlock(BufferView * bv)
 160 {
 161         if (mathcursor) {
 162                 if (mathcursor->inMacroMode()) {
 163                         mathcursor->macroModeClose();
 164                         updateLocal(bv, true);
 165                 }
 166                 delete mathcursor;
 167                 mathcursor = 0;
 168         }
 169         bv->updateInset(this, false);
 170 }
 171
 172
 173 void InsetFormulaBase::getCursorPos(BufferView *, int & x, int & y) const
 174 {
 175         mathcursor->getPos(x, y);
 176         x += xo_;
 177         y += yo_;
 178         //lyxerr << "getCursorPos: " << x << " " << y << "\n";
 179 }
 180
 181
 182 void InsetFormulaBase::toggleInsetCursor(BufferView * bv)
 183 {
 184         if (!mathcursor)
 185                 return;
 186
 187         if (isCursorVisible())
 188                 bv->hideLockedInsetCursor();
 189         else {
 190                 metrics(bv);
 191                 int x;
 192                 int y;
 193                 mathcursor->getPos(x, y);
 194                 y -= yo_;
 195                 int asc = 0;
 196                 int des = 0;
 197                 MathMetricsInfo mi(bv, font_, display() ? LM_ST_DISPLAY : LM_ST_TEXT);
 198                 math_font_max_dim(LM_TC_TEXTRM, mi, asc, des);
 199                 bv->showLockedInsetCursor(x, y, asc, des);
 200                 //lyxerr << "toggleInsetCursor: " << x << " " << y << "\n";
 201         }
 202
 203         toggleCursorVisible();
 204 }
 205
 206
 207 void InsetFormulaBase::showInsetCursor(BufferView * bv, bool)
 208 {
 209         if (isCursorVisible())
 210                 return;
 211         if (mathcursor) {
 212                 int x;
 213                 int y;
 214                 mathcursor->getPos(x, y);
 215                 int asc = 0;
 216                 int des = 0;
 217                 MathMetricsInfo mi(bv, font_, display() ? LM_ST_DISPLAY : LM_ST_TEXT);
 218                 math_font_max_dim(LM_TC_TEXTRM, mi, asc, des);
 219                 //bv->fitLockedInsetCursor(x, y, asc, des);
 220                 //metrics(bv);
 221                 //lyxerr << "showInsetCursor: " << x << " " << y << "\n";
 222         }
 223         toggleInsetCursor(bv);
 224 }
 225
 226
 227 void InsetFormulaBase::hideInsetCursor(BufferView * bv)
 228 {
 229         if (isCursorVisible())
 230                 toggleInsetCursor(bv);
 231 }
 232
 233
 234 void InsetFormulaBase::toggleInsetSelection(BufferView * bv)
 235 {
 236         if (mathcursor)
 237                 bv->updateInset(this, false);
 238 }
 239
 240
 241 vector<string> const InsetFormulaBase::getLabelList() const
 242 {
 243   return std::vector<string>();
 244 }
 245
 246
 247 void InsetFormulaBase::updateLocal(BufferView * bv, bool dirty)
 248 {
 249         metrics(bv);
 250         bv->updateInset(this, dirty);
 251 }
 252
 253
 254 void InsetFormulaBase::insetButtonRelease(BufferView * bv,
 255                                           int /*x*/, int /*y*/, int /*button*/)
 256 {
 257         if (!mathcursor)
 258                 return;
 259         //lyxerr << "insetButtonRelease: " << x << " " << y << "\n";
 260         hideInsetCursor(bv);
 261         showInsetCursor(bv);
 262         bv->updateInset(this, false);
 263 }
 264
 265
 266 void InsetFormulaBase::insetButtonPress(BufferView * bv,
 267                                         int x, int y, int button)
 268 {
 269         // hack to cope with mouseclick that comes before the call to edit()
 270         if (!mathcursor) {
 271                 hack_x = x;
 272                 hack_y = y;
 273                 hack_button = button;
 274                 return;
 275         }
 276
 277         //lyxerr << "insetButtonPress: " << x + xo_ << " " << y + yo_
 278         //      << " but: " << button << "\n";
 279         switch (button) {
 280                 default:
 281                 case 1:
 282                         // just click
 283                         first_x = x;
 284                         first_y = y;
 285                         if (mathcursor) {
 286                                 mathcursor->selClear();
 287                                 mathcursor->setPos(x + xo_, y + yo_);
 288                         }
 289                         break;
 290 /*
 291                 case 2:
 292                         lyxerr << "insetButtonPress: 2\n";
 293                         // insert stuff
 294                         if (mathcursor) {
 295                                 bv->lockedInsetStoreUndo(Undo::EDIT);
 296                                 MathArray ar;
 297                                 mathcursor->selGet(ar);
 298                                 mathcursor->setPos(x + xo_, y + yo_);
 299                                 string sel =
 300                                         bv->getLyXText()->selectionAsString(bv->buffer(), false);
 301                                 mathed_parse_cell(ar, sel);
 302                                 mathcursor->insert(ar);
 303                         }
 304                         break;
 305 */
 306         }
 307         bv->updateInset(this, false);
 308 }
 309
 310
 311 void InsetFormulaBase::insetMotionNotify(BufferView * bv,
 312                                          int x, int y, int /*button*/)
 313 {
 314         if (!mathcursor)
 315                 return;
 316
 317         if (abs(x - first_x) < 2 && abs(y - first_y) < 2) {
 318                 //lyxerr << "insetMotionNotify: ignored\n";
 319                 return;
 320         }
 321         first_x = x;
 322         first_y = y;
 323
 324         if (!mathcursor->selection())
 325                 mathcursor->selStart();
 326
 327         //lyxerr << "insetMotionNotify: " << x + xo_ << ' ' << y + yo_
 328         //      << ' ' << button << "\n";
 329         hideInsetCursor(bv);
 330         mathcursor->setPos(x + xo_, y + yo_);
 331         showInsetCursor(bv);
 332         bv->updateInset(this, false);
 333 }
 334
 335
 336 void InsetFormulaBase::insetKeyPress(XKeyEvent *)
 337 {
 338         lyxerr[Debug::MATHED] << "Used InsetFormulaBase::InsetKeyPress." << endl;
 339 }
 340
 341
 342 UpdatableInset::RESULT
 343 InsetFormulaBase::localDispatch(BufferView * bv, kb_action action,
 344                             string const & arg)
 345 {
 346         //lyxerr << "InsetFormulaBase::localDispatch: act: " << action
 347         //      << " arg: '" << arg << "' cursor: " << mathcursor << "\n";
 348
 349         if (!mathcursor)
 350                 return UNDISPATCHED;
 351
 352         if (mathcursor->asHyperActiveInset()) {
 353                 lyxerr << " uurr.... getting dificult now\n";
 354                 return mathcursor->asHyperActiveInset()->localDispatch(bv, action, arg);
 355         }
 356
 357         RESULT result      = DISPATCHED;
 358         bool sel           = false;
 359         bool was_macro     = mathcursor->inMacroMode();
 360         bool was_selection = mathcursor->selection();
 361
 362         hideInsetCursor(bv);
 363
 364         mathcursor->normalize();
 365
 366         switch (action) {
 367
 368                 // --- Cursor Movements ---------------------------------------------
 369
 370         case LFUN_RIGHTSEL:
 371                 sel = true; // fall through...
 372
 373         case LFUN_RIGHT:
 374                 result = mathcursor->right(sel) ? DISPATCHED : FINISHED_RIGHT;
 375                 updateLocal(bv, false);
 376                 break;
 377
 378
 379         case LFUN_LEFTSEL:
 380                 sel = true; // fall through
 381
 382         case LFUN_LEFT:
 383                 result = mathcursor->left(sel) ? DISPATCHED : FINISHED;
 384                 updateLocal(bv, false);
 385                 break;
 386
 387
 388         case LFUN_UPSEL:
 389                 sel = true;
 390
 391         case LFUN_UP:
 392                 result = mathcursor->up(sel) ? DISPATCHED : FINISHED_UP;
 393                 updateLocal(bv, false);
 394                 break;
 395
 396
 397         case LFUN_DOWNSEL:
 398                 sel = true;
 399
 400         case LFUN_DOWN:
 401                 result = mathcursor->down(sel) ? DISPATCHED : FINISHED_DOWN;
 402                 updateLocal(bv, false);
 403                 break;
 404
 405         case LFUN_HOMESEL:
 406                 sel = true;
 407
 408         case LFUN_HOME:
 409                 mathcursor->home(sel);
 410                 updateLocal(bv, false);
 411                 break;
 412
 413         case LFUN_ENDSEL:
 414                 sel = true;
 415
 416         case LFUN_END:
 417                 mathcursor->end(sel);
 418                 updateLocal(bv, false);
 419                 break;
 420
 421         case LFUN_DELETE_LINE_FORWARD:
 422                 bv->lockedInsetStoreUndo(Undo::DELETE);
 423                 mathcursor->delLine();
 424                 updateLocal(bv, true);
 425                 break;
 426
 427         case LFUN_TAB:
 428                 mathcursor->idxNext();
 429                 updateLocal(bv, false);
 430                 break;
 431
 432         case LFUN_SHIFT_TAB:
 433                 mathcursor->idxPrev();
 434                 updateLocal(bv, false);
 435                 break;
 436
 437         case LFUN_TABINSERT:
 438                 bv->lockedInsetStoreUndo(Undo::EDIT);
 439                 mathcursor->splitCell();
 440                 updateLocal(bv, true);
 441                 break;
 442
 443         case LFUN_DELETE_WORD_BACKWARD:
 444         case LFUN_BACKSPACE:
 445                 bv->lockedInsetStoreUndo(Undo::DELETE);
 446                 mathcursor->backspace();
 447                 bv->updateInset(this, true);
 448                 break;
 449
 450         case LFUN_DELETE_WORD_FORWARD:
 451         case LFUN_DELETE:
 452                 bv->lockedInsetStoreUndo(Undo::DELETE);
 453                 mathcursor->erase();
 454                 bv->updateInset(this, true);
 455                 break;
 456
 457         //    case LFUN_GETXY:
 458         //      sprintf(dispatch_buffer, "%d %d",);
 459         //      dispatch_result = dispatch_buffer;
 460         //      break;
 461         case LFUN_SETXY: {
 462                 lyxerr << "LFUN_SETXY broken!\n";
 463                 int x = 0;
 464                 int y = 0;
 465                 istringstream is(arg.c_str());
 466                 is >> x >> y;
 467                 mathcursor->setPos(x, y);
 468                 updateLocal(bv, false);
 469                 break;
 470         }
 471
 472         case LFUN_PASTE:
 473                 if (was_macro)
 474                         mathcursor->macroModeClose();
 475                 bv->lockedInsetStoreUndo(Undo::EDIT);
 476                 mathcursor->selPaste();
 477                 updateLocal(bv, true);
 478                 break;
 479
 480         case LFUN_CUT:
 481                 bv->lockedInsetStoreUndo(Undo::DELETE);
 482                 mathcursor->selCut();
 483                 updateLocal(bv, true);
 484                 break;
 485
 486         case LFUN_COPY:
 487                 mathcursor->selCopy();
 488                 break;
 489
 490         case LFUN_WORDRIGHTSEL:
 491         case LFUN_WORDLEFTSEL:
 492                 break;
 493
 494                 // --- accented characters ------------------------------
 495
 496         case LFUN_UMLAUT:       handleAccent(bv, "ddot"); break;
 497         case LFUN_CIRCUMFLEX:   handleAccent(bv, "hat"); break;
 498         case LFUN_GRAVE:        handleAccent(bv, "grave"); break;
 499         case LFUN_ACUTE:        handleAccent(bv, "acute"); break;
 500         case LFUN_TILDE:        handleAccent(bv, "tilde"); break;
 501         case LFUN_MACRON:       handleAccent(bv, "bar"); break;
 502         case LFUN_DOT:          handleAccent(bv, "dot"); break;
 503         case LFUN_CARON:        handleAccent(bv, "check"); break;
 504         case LFUN_BREVE:        handleAccent(bv, "breve"); break;
 505         case LFUN_VECTOR:       handleAccent(bv, "vec"); break;
 506
 507         //  Math fonts
 508         case LFUN_GREEK_TOGGLE: handleFont(bv, LM_TC_GREEK); break;
 509         case LFUN_BOLD:         handleFont(bv, LM_TC_BF); break;
 510         case LFUN_SANS:         handleFont(bv, LM_TC_SF); break;
 511         case LFUN_EMPH:         handleFont(bv, LM_TC_CAL); break;
 512         case LFUN_ROMAN:        handleFont(bv, LM_TC_RM); break;
 513         case LFUN_CODE:         handleFont(bv, LM_TC_TT); break;
 514         case LFUN_NOUN:         handleFont(bv, LM_TC_BB); break;
 515         case LFUN_DEFAULT:      handleFont(bv, LM_TC_VAR); break;
 516
 517         case LFUN_GREEK:
 518                 handleFont(bv, LM_TC_GREEK1);
 519                 if (arg.size())
 520                         mathcursor->interpret(arg);
 521                 break;
 522
 523         case LFUN_MATH_MODE:
 524                 handleFont(bv, LM_TC_TEXTRM);
 525                 //bv->owner()->message(_("math text mode toggled"));
 526                 break;
 527
 528         case LFUN_MATH_LIMITS:
 529                 bv->lockedInsetStoreUndo(Undo::EDIT);
 530                 if (mathcursor->toggleLimits())
 531                         updateLocal(bv, true);
 532                 break;
 533
 534         case LFUN_MATH_SIZE:
 535 #if 0
 536                 if (!arg.empty()) {
 537                         bv->lockedInsetStoreUndo(Undo::EDIT);
 538                         mathcursor->setSize(arg);
 539                         updateLocal(bv, true);
 540                 }
 541 #endif
 542                 break;
 543
 544         case LFUN_INSERT_MATRIX:
 545                 if (!arg.empty()) {
 546                         bv->lockedInsetStoreUndo(Undo::EDIT);
 547                         mathcursor->interpret("matrix " + arg);
 548                         updateLocal(bv, true);
 549                 }
 550                 break;
 551
 552         case LFUN_MATH_SPACE:
 553         {
 554                 bv->lockedInsetStoreUndo(Undo::EDIT);
 555                 mathcursor->insert(MathAtom(new MathSpaceInset(1)));
 556                 updateLocal(bv, true);
 557                 break;
 558         }
 559
 560         case LFUN_SUPERSCRIPT:
 561         case LFUN_SUBSCRIPT:
 562         {
 563                 bv->lockedInsetStoreUndo(Undo::EDIT);
 564                 mathcursor->script((action == LFUN_SUPERSCRIPT));
 565                 updateLocal(bv, true);
 566                 break;
 567         }
 568
 569         case LFUN_MATH_DELIM:
 570         {
 571                 lyxerr << "formulabase::LFUN_MATH_DELIM, arg: '" << arg << "'\n";
 572                 string ls;
 573                 string rs;
 574                 istringstream is(arg.c_str());
 575                 is >> ls >> rs;
 576                 if (!is) {
 577                         lyxerr << "can't parse delimeters from '" << arg << "'\n";
 578                         break;
 579                 }
 580                 bv->lockedInsetStoreUndo(Undo::EDIT);
 581                 mathcursor->handleDelim(ls, rs);
 582                 updateLocal(bv, true);
 583                 break;
 584         }
 585
 586         case LFUN_PROTECTEDSPACE:
 587                 //lyxerr << " called LFUN_PROTECTEDSPACE\n";
 588                 bv->lockedInsetStoreUndo(Undo::EDIT);
 589                 mathcursor->insert(MathAtom(new MathSpaceInset(1)));
 590                 updateLocal(bv, true);
 591                 break;
 592
 593         case LFUN_UNDO:
 594                 bv->owner()->message(_("Invalid action in math mode!"));
 595                 break;
 596
 597
 598         case LFUN_MATH_HALIGN:
 599         case LFUN_MATH_VALIGN:
 600         case LFUN_MATH_ROW_INSERT:
 601         case LFUN_MATH_ROW_DELETE:
 602         case LFUN_MATH_COLUMN_INSERT:
 603         case LFUN_MATH_COLUMN_DELETE:
 604         {
 605                 MathInset::idx_type idx = 0;
 606                 MathGridInset * p = mathcursor ? mathcursor->enclosingGrid(idx) : 0;
 607                 if (p) {
 608                         bv->lockedInsetStoreUndo(Undo::EDIT);
 609                         char al = arg.size() ? arg[0] : 'c';
 610                         switch (action) {
 611                                 case LFUN_MATH_HALIGN: p->halign(al, p->col(idx)); break;
 612                                 case LFUN_MATH_VALIGN: p->valign(al); break;
 613                                 case LFUN_MATH_ROW_INSERT: p->addRow(p->row(idx)); break;
 614                                 case LFUN_MATH_ROW_DELETE: p->delRow(p->row(idx)); break;
 615                                 case LFUN_MATH_COLUMN_INSERT: p->addCol(p->col(idx)); break;
 616                                 case LFUN_MATH_COLUMN_DELETE: p->delCol(p->col(idx)); break;
 617                                 default: ;
 618                         }
 619                         updateLocal(bv, true);
 620                 }
 621                 break;
 622         }
 623
 624         case LFUN_EXEC_COMMAND:
 625                 result = UNDISPATCHED;
 626                 break;
 627
 628         case LFUN_BREAKPARAGRAPH:
 629         case LFUN_BREAKPARAGRAPHKEEPLAYOUT:
 630                 //lyxerr << "LFUN ignored\n";
 631                 break;
 632
 633         case LFUN_INSET_ERT:
 634                 // interpret this as if a backslash was typed
 635                 bv->lockedInsetStoreUndo(Undo::EDIT);
 636                 mathcursor->interpret("\\");
 637                 updateLocal(bv, true);
 638                 break;
 639
 640         case -1:
 641         case LFUN_INSERT_MATH:
 642         case LFUN_SELFINSERT:
 643                 if (!arg.empty()) {
 644                         bv->lockedInsetStoreUndo(Undo::EDIT);
 645                         result = mathcursor->interpret(arg) ? DISPATCHED : FINISHED_RIGHT;
 646                         updateLocal(bv, true);
 647                 }
 648                 break;
 649
 650         case LFUN_MATH_PANEL:
 651                 result = UNDISPATCHED;
 652                 break;
 653
 654         default:
 655                 result = UNDISPATCHED;
 656         }
 657
 658         mathcursor->normalize();
 659
 660         lyx::Assert(mathcursor);
 661
 662         if (mathcursor->selection() || was_selection)
 663                 toggleInsetSelection(bv);
 664
 665         if (result == DISPATCHED || result == DISPATCHED_NOUPDATE ||
 666             result == UNDISPATCHED)
 667                 showInsetCursor(bv);
 668         else
 669                 bv->unlockInset(this);
 670
 671         return result;  // original version
 672 }
 673
 674
 675 Inset::Code InsetFormulaBase::lyxCode() const
 676 {
 677         return Inset::MATH_CODE;
 678 }
 679
 680
 681 int InsetFormulaBase::ylow() const
 682 {
 683         return yo_ - ascent(view_, font_);
 684 }
 685
 686
 687 int InsetFormulaBase::yhigh() const
 688 {
 689         return yo_ + descent(view_, font_);
 690 }
 691
 692
 693 int InsetFormulaBase::xlow() const
 694 {
 695         return xo_;
 696 }
 697
 698
 699 int InsetFormulaBase::xhigh() const
 700 {
 701         return xo_ + width(view_, font_);
 702 }
 703
 704
 705 /////////////////////////////////////////////////////////////////////
 706
 707
 708 void mathDispatchCreation(BufferView * bv, string const & arg, bool display)
 709 {
 710         if (bv->available()) {
 711                 // use selection if available..
 712                 //string sel;
 713                 //if (action == LFUN_MATH_IMPORT_SELECTION)
 714                 //      sel = "";
 715                 //else
 716
 717                 string sel = bv->getLyXText()->selectionAsString(bv->buffer(), false);
 718
 719                 InsetFormulaBase * f;
 720                 if (sel.empty()) {
 721                         f = new InsetFormula;
 722                         if (openNewInset(bv, f)) {
 723                                 // don't do that also for LFUN_MATH_MODE unless you want end up with
 724                                 // always changing to mathrm when opening an inlined inset
 725                                 // -- I really hate "LyXfunc overloading"...
 726                                 if (display)
 727                                         f->localDispatch(bv, LFUN_MATH_DISPLAY, string());
 728                                 f->localDispatch(bv, LFUN_INSERT_MATH, arg);
 729                         }
 730                 } else {
 731                         // create a macro if we see "\\newcommand" somewhere, and an ordinary
 732                         // formula otherwise
 733                         if (sel.find("\\newcommand") == string::npos)
 734                                 f = new InsetFormula(sel);
 735                         else
 736                                 f = new InsetFormulaMacro(sel);
 737                         bv->getLyXText()->cutSelection(bv);
 738                         openNewInset(bv, f);
 739                 }
 740         }
 741         bv->owner()->getLyXFunc()->setMessage(N_("Math editor mode"));
 742 }
 743
 744
 745 void mathDispatchMathDisplay(BufferView * bv, string const & arg)
 746 {
 747         mathDispatchCreation(bv, arg, true);
 748 }
 749
 750
 751 void mathDispatchMathMode(BufferView * bv, string const & arg)
 752 {
 753         mathDispatchCreation(bv, arg, false);
 754 }
 755
 756
 757 void mathDispatchMathImportSelection(BufferView * bv, string const & arg)
 758 {
 759         mathDispatchCreation(bv, arg, true);
 760 }
 761
 762
 763 void mathDispatchMathMacro(BufferView * bv, string const & arg)
 764 {
 765         if (bv->available()) {
 766                 if (arg.empty())
 767                         bv->owner()->getLyXFunc()->setErrorMessage(N_("Missing argument"));
 768                 else {
 769                         string s(arg);
 770                         string const s1 = token(s, ' ', 1);
 771                         int const na = s1.empty() ? 0 : lyx::atoi(s1);
 772                         openNewInset(bv, new InsetFormulaMacro(token(s, ' ', 0), na));
 773                 }
 774         }
 775 }
 776
 777
 778 void mathDispatchMathDelim(BufferView * bv, string const & arg)
 779 {
 780         if (bv->available()) {
 781                 if (openNewInset(bv, new InsetFormula))
 782                         bv->theLockingInset()->localDispatch(bv, LFUN_MATH_DELIM, arg);
 783         }
 784 }
 785
 786
 787 void mathDispatchInsertMatrix(BufferView * bv, string const & arg)
 788 {
 789         if (bv->available()) {
 790                 if (openNewInset(bv, new InsetFormula))
 791                         bv->theLockingInset()->localDispatch(bv, LFUN_INSERT_MATRIX, arg);
 792         }
 793 }
 794
 795
 796 void mathDispatchInsertMath(BufferView * bv, string const & arg)
 797 {
 798         if (bv->available()) {
 799                 if (arg.size() && arg[0] == '\\') {
 800                         InsetFormula * f = new InsetFormula(arg);
 801                         if (!bv->insertInset(f))
 802                                 delete f;
 803                 } else
 804                         mathDispatchMathMode(bv, arg);
 805         }
 806 }
 807
 808
 809 void mathDispatchGreek(BufferView * bv, string const & arg)
 810 {
 811         if (bv->available()) {
 812                 InsetFormula * f = new InsetFormula;
 813                 if (openNewInset(bv, f)) {
 814                         bv->theLockingInset()->localDispatch(bv, LFUN_GREEK, arg);
 815                         bv->unlockInset(f);
 816                 }
 817         }
 818 }
 819
 820
 821 void mathDispatch(BufferView *, kb_action, string const &)
 822 {}