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 "Lsstream.h"
  40 #include "math_arrayinset.h"
  41 #include "math_charinset.h"
  42 #include "math_cursor.h"
  43 #include "math_factory.h"
  44 #include "math_hullinset.h"
  45 #include "math_iterator.h"
  46 #include "math_macrotable.h"
  47 #include "math_parser.h"
  48 #include "math_pos.h"
  49 #include "math_spaceinset.h"
  50 #include "undo_funcs.h"
  51 #include "textpainter.h"
  52 #include "frontends/Dialogs.h"
  53 #include "intl.h"
  54
  55 using std::endl;
  56 using std::ostream;
  57 using std::vector;
  58
  59 MathCursor * mathcursor = 0;
  60
  61
  62 namespace {
  63
  64
  65 // local global
  66 int first_x;
  67 int first_y;
  68
  69
  70 void handleFont(BufferView * bv, string const & arg, MathTextCodes t)
  71 {
  72         if (mathcursor->selection())
  73                 bv->lockedInsetStoreUndo(Undo::EDIT);
  74         mathcursor->handleFont(t);
  75         for (string::const_iterator it = arg.begin(); it != arg.end(); ++it)
  76                 mathcursor->insert(*it);
  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         //lyxerr << "sizeof(MathMetricsInfo): " << sizeof(MathMetricsInfo) << "\n";
 102         //lyxerr << "sizeof(MathCharInset): " << sizeof(MathCharInset) << "\n";
 103 }
 104
 105
 106 // simply scrap this function if you want
 107 void InsetFormulaBase::mutateToText()
 108 {
 109 #if 0
 110         // translate to latex
 111         ostringstream os;
 112         latex(NULL, os, false, false);
 113         string str = os.str();
 114
 115         // insert this text
 116         LyXText * lt = view_->getLyXText();
 117         string::const_iterator cit = str.begin();
 118         string::const_iterator end = str.end();
 119         for (; cit != end; ++cit)
 120                 view_->owner()->getIntl()->getTrans().TranslateAndInsert(*cit, lt);
 121
 122         // remove ourselves
 123         //view_->owner()->getLyXFunc()->dispatch(LFUN_ESCAPE);
 124 #endif
 125 }
 126
 127
 128 // Check if uses AMS macros
 129 void InsetFormulaBase::validate(LaTeXFeatures &) const
 130 {}
 131
 132
 133 void InsetFormulaBase::metrics(BufferView * bv, LyXFont const & f) const
 134 {
 135         font_ = f;
 136         metrics(bv);
 137 }
 138
 139
 140 void InsetFormulaBase::metrics(BufferView * bv) const
 141 {
 142         if (bv)
 143                 view_ = bv;
 144         MathMetricsInfo mi(view_, font_, display() ? LM_ST_DISPLAY : LM_ST_TEXT);
 145         par()->metrics(mi);
 146 }
 147
 148
 149 string const InsetFormulaBase::editMessage() const
 150 {
 151         return _("Math editor mode");
 152 }
 153
 154
 155 void InsetFormulaBase::edit(BufferView * bv, int x, int y, unsigned int)
 156 {
 157         if (!bv->lockInset(this))
 158                 lyxerr[Debug::MATHED] << "Cannot lock inset!!!" << endl;
 159         delete mathcursor;
 160         mathcursor = new MathCursor(this, true);
 161         metrics(bv);
 162         mathcursor->setPos(x, y);
 163         //lyxerr << "setting pos to " << x << "," << y << "\n";
 164
 165         // if that is removed, we won't get the magenta box when entering an
 166         // inset for the first time
 167         bv->updateInset(this, false);
 168 }
 169
 170
 171 void InsetFormulaBase::edit(BufferView * bv, bool front)
 172 {
 173         if (!bv->lockInset(this))
 174                 lyxerr[Debug::MATHED] << "Cannot lock inset!!!" << endl;
 175         delete mathcursor;
 176         mathcursor = new MathCursor(this, front);
 177         metrics(bv);
 178         bv->updateInset(this, false);
 179 }
 180
 181
 182 void InsetFormulaBase::insetUnlock(BufferView * bv)
 183 {
 184         if (mathcursor) {
 185                 if (mathcursor->inMacroMode()) {
 186                         mathcursor->macroModeClose();
 187                         updateLocal(bv, true);
 188                 }
 189                 delete mathcursor;
 190                 mathcursor = 0;
 191         }
 192         bv->updateInset(this, false);
 193 }
 194
 195
 196 void InsetFormulaBase::getCursorPos(BufferView *, int & x, int & y) const
 197 {
 198         mathcursor->getPos(x, y);
 199         //x -= xo_;
 200         y -= yo_;
 201         //lyxerr << "getCursorPos: " << x << " " << y << "\n";
 202 }
 203
 204
 205 void InsetFormulaBase::toggleInsetCursor(BufferView * bv)
 206 {
 207         if (!mathcursor)
 208                 return;
 209
 210         if (isCursorVisible())
 211                 bv->hideLockedInsetCursor();
 212         else {
 213                 metrics(bv);
 214                 int x;
 215                 int y;
 216                 mathcursor->getPos(x, y);
 217                 y -= yo_;
 218                 int asc = 0;
 219                 int des = 0;
 220                 math_font_max_dim(font_, asc, des);
 221                 bv->showLockedInsetCursor(x, y, asc, des);
 222                 //lyxerr << "toggleInsetCursor: " << x << " " << y << "\n";
 223         }
 224
 225         toggleCursorVisible();
 226 }
 227
 228
 229 void InsetFormulaBase::showInsetCursor(BufferView * bv, bool)
 230 {
 231         if (isCursorVisible())
 232                 return;
 233         if (mathcursor) {
 234                 metrics(bv);
 235                 int x;
 236                 int y;
 237                 mathcursor->getPos(x, y);
 238                 y -= yo_;
 239                 int asc = 0;
 240                 int des = 0;
 241                 math_font_max_dim(font_, asc, des);
 242                 bv->fitLockedInsetCursor(x, y, asc, des);
 243                 //lyxerr << "showInsetCursor: x: " << x << " y: " << y << " yo: " << yo_ << "\n";
 244         }
 245         toggleInsetCursor(bv);
 246 }
 247
 248
 249 void InsetFormulaBase::hideInsetCursor(BufferView * bv)
 250 {
 251         if (isCursorVisible())
 252                 toggleInsetCursor(bv);
 253 }
 254
 255
 256 void InsetFormulaBase::toggleInsetSelection(BufferView * bv)
 257 {
 258         if (mathcursor)
 259                 bv->updateInset(this, false);
 260 }
 261
 262
 263 vector<string> const InsetFormulaBase::getLabelList() const
 264 {
 265   return vector<string>();
 266 }
 267
 268
 269 void InsetFormulaBase::updateLocal(BufferView * bv, bool dirty)
 270 {
 271         metrics(bv);
 272         bv->updateInset(this, dirty);
 273 }
 274
 275
 276 bool InsetFormulaBase::insetButtonRelease(BufferView * bv,
 277                                           int /*x*/, int /*y*/, int button)
 278 {
 279         //lyxerr << "insetButtonRelease: " << x << " " << y << "\n";
 280
 281         if (!mathcursor)
 282                 return false;
 283         hideInsetCursor(bv);
 284         showInsetCursor(bv);
 285         bv->updateInset(this, false);
 286
 287         if (button == 3) {
 288                 // launch math panel for right mouse button
 289                 bv->owner()->getDialogs()->showMathPanel();
 290                 return true;
 291         }
 292         return false;
 293 }
 294
 295
 296 void InsetFormulaBase::insetButtonPress(BufferView * bv,
 297                                         int x, int y, int button)
 298 {
 299         //lyxerr << "insetButtonPress: "
 300         //      << x << " " << y << " but: " << button << "\n";
 301 #if 0
 302         switch (button) {
 303                 default:
 304                 case 1:
 305                         // left click
 306                         delete mathcursor;
 307                         mathcursor = new MathCursor(this, x == 0);
 308                         metrics(bv);
 309                         first_x = x;
 310                         first_y = y;
 311                         mathcursor->selClear();
 312                         mathcursor->setPos(x + xo_, y + yo_);
 313                         break;
 314 /*
 315                 case 2:
 316                         lyxerr << "insetButtonPress: 2\n";
 317                         // insert stuff
 318                         if (mathcursor) {
 319                                 bv->lockedInsetStoreUndo(Undo::EDIT);
 320                                 MathArray ar;
 321                                 mathcursor->selGet(ar);
 322                                 mathcursor->setPos(x + xo_, y + yo_);
 323                                 string sel =
 324                                         bv->getLyXText()->selectionAsString(bv->buffer(), false);
 325                                 mathed_parse_cell(ar, sel);
 326                                 mathcursor->insert(ar);
 327                         }
 328                         break;
 329 */
 330                 case 3:
 331                         // launch math panel for right mouse button
 332                         bv->owner()->getDialogs()->showMathPanel();
 333                         break;
 334         }
 335 #else
 336         if (button == 1 || !mathcursor) {
 337                 delete mathcursor;
 338                 mathcursor = new MathCursor(this, x == 0);
 339                 metrics(bv);
 340                 first_x = x;
 341                 first_y = y;
 342                 mathcursor->selClear();
 343                 mathcursor->setPos(x + xo_, y + yo_);
 344         }
 345 #if 0
 346 #warning Never launch a Dialog on "Press" event ONLY on "Release" event!
 347         if (button == 3) {
 348                 // launch math panel for right mouse button
 349                 bv->owner()->getDialogs()->showMathPanel();
 350         }
 351 #endif
 352 #endif
 353         bv->updateInset(this, false);
 354 }
 355
 356
 357 void InsetFormulaBase::insetMotionNotify(BufferView * bv,
 358                                          int x, int y, int /*button*/)
 359 {
 360         if (!mathcursor)
 361                 return;
 362
 363         if (abs(x - first_x) < 2 && abs(y - first_y) < 2) {
 364                 //lyxerr << "insetMotionNotify: ignored\n";
 365                 return;
 366         }
 367         first_x = x;
 368         first_y = y;
 369
 370         if (!mathcursor->selection())
 371                 mathcursor->selStart();
 372
 373         //lyxerr << "insetMotionNotify: " << x + xo_ << ' ' << y + yo_
 374         //      << ' ' << button << "\n";
 375         hideInsetCursor(bv);
 376         mathcursor->setPos(x + xo_, y + yo_);
 377         showInsetCursor(bv);
 378         bv->updateInset(this, false);
 379 }
 380
 381
 382 void InsetFormulaBase::insetKeyPress(XKeyEvent *)
 383 {
 384         lyxerr[Debug::MATHED] << "Used InsetFormulaBase::InsetKeyPress." << endl;
 385 }
 386
 387
 388 UpdatableInset::RESULT
 389 InsetFormulaBase::localDispatch(BufferView * bv, kb_action action,
 390                             string const & arg)
 391 {
 392         //lyxerr << "InsetFormulaBase::localDispatch: act: " << action
 393         //      << " arg: '" << arg << "' cursor: " << mathcursor << "\n";
 394
 395         if (!mathcursor)
 396                 return UNDISPATCHED;
 397
 398         RESULT result      = DISPATCHED;
 399         bool sel           = false;
 400         bool was_macro     = mathcursor->inMacroMode();
 401         bool was_selection = mathcursor->selection();
 402
 403         hideInsetCursor(bv);
 404
 405         mathcursor->normalize();
 406         mathcursor->touch();
 407
 408         switch (action) {
 409
 410                 // --- Cursor Movements ---------------------------------------------
 411
 412         case LFUN_RIGHTSEL:
 413                 sel = true; // fall through...
 414
 415         case LFUN_RIGHT:
 416                 result = mathcursor->right(sel) ? DISPATCHED : FINISHED_RIGHT;
 417                 //lyxerr << "calling scroll 20\n";
 418                 //scroll(bv, 20);
 419                 updateLocal(bv, false);
 420                 // write something to the minibuffer
 421                 //bv->owner()->message(mathcursor->info());
 422                 break;
 423
 424
 425         case LFUN_LEFTSEL:
 426                 sel = true; // fall through
 427
 428         case LFUN_LEFT:
 429                 result = mathcursor->left(sel) ? DISPATCHED : FINISHED;
 430                 updateLocal(bv, false);
 431                 break;
 432
 433
 434         case LFUN_UPSEL:
 435                 sel = true;
 436
 437         case LFUN_UP:
 438                 result = mathcursor->up(sel) ? DISPATCHED : FINISHED_UP;
 439                 updateLocal(bv, false);
 440                 break;
 441
 442
 443         case LFUN_DOWNSEL:
 444                 sel = true;
 445
 446         case LFUN_DOWN:
 447                 result = mathcursor->down(sel) ? DISPATCHED : FINISHED_DOWN;
 448                 updateLocal(bv, false);
 449                 break;
 450
 451         case LFUN_HOMESEL:
 452                 sel = true;
 453
 454         case LFUN_HOME:
 455                 mathcursor->home(sel);
 456                 updateLocal(bv, false);
 457                 break;
 458
 459         case LFUN_ENDSEL:
 460                 sel = true;
 461
 462         case LFUN_END:
 463                 mathcursor->end(sel);
 464                 updateLocal(bv, false);
 465                 break;
 466
 467         case LFUN_DELETE_LINE_FORWARD:
 468                 bv->lockedInsetStoreUndo(Undo::DELETE);
 469                 mathcursor->delLine();
 470                 updateLocal(bv, true);
 471                 break;
 472
 473         case LFUN_TAB:
 474                 mathcursor->idxNext();
 475                 updateLocal(bv, false);
 476                 break;
 477
 478         case LFUN_SHIFT_TAB:
 479                 mathcursor->idxPrev();
 480                 updateLocal(bv, false);
 481                 break;
 482
 483         case LFUN_TABINSERT:
 484                 bv->lockedInsetStoreUndo(Undo::EDIT);
 485                 mathcursor->splitCell();
 486                 updateLocal(bv, true);
 487                 break;
 488
 489         case LFUN_DELETE_WORD_BACKWARD:
 490         case LFUN_BACKSPACE:
 491                 bv->lockedInsetStoreUndo(Undo::DELETE);
 492                 mathcursor->backspace();
 493                 bv->updateInset(this, true);
 494                 break;
 495
 496         case LFUN_DELETE_WORD_FORWARD:
 497         case LFUN_DELETE:
 498                 bv->lockedInsetStoreUndo(Undo::DELETE);
 499                 mathcursor->erase();
 500                 bv->updateInset(this, true);
 501                 break;
 502
 503         //    case LFUN_GETXY:
 504         //      sprintf(dispatch_buffer, "%d %d",);
 505         //      dispatch_result = dispatch_buffer;
 506         //      break;
 507         case LFUN_SETXY: {
 508                 lyxerr << "LFUN_SETXY broken!\n";
 509                 int x = 0;
 510                 int y = 0;
 511                 istringstream is(arg.c_str());
 512                 is >> x >> y;
 513                 mathcursor->setPos(x, y);
 514                 updateLocal(bv, false);
 515                 break;
 516         }
 517
 518         case LFUN_PASTE:
 519                 if (was_macro)
 520                         mathcursor->macroModeClose();
 521                 bv->lockedInsetStoreUndo(Undo::EDIT);
 522                 mathcursor->selPaste();
 523                 updateLocal(bv, true);
 524                 break;
 525
 526         case LFUN_CUT:
 527                 bv->lockedInsetStoreUndo(Undo::DELETE);
 528                 mathcursor->selCut();
 529                 updateLocal(bv, true);
 530                 break;
 531
 532         case LFUN_COPY:
 533                 mathcursor->selCopy();
 534                 break;
 535
 536         case LFUN_WORDRIGHTSEL:
 537         case LFUN_WORDLEFTSEL:
 538                 break;
 539
 540         // Special casing for superscript in case of LyX handling
 541         // dead-keys:
 542         case LFUN_CIRCUMFLEX:
 543                 if (arg.empty()) {
 544                         // do superscript if LyX handles
 545                         // deadkeys
 546                         bv->lockedInsetStoreUndo(Undo::EDIT);
 547                         mathcursor->script(true);
 548                         updateLocal(bv, true);
 549                 }
 550                 break;
 551         case LFUN_UMLAUT:
 552         case LFUN_ACUTE:
 553         case LFUN_GRAVE:
 554         case LFUN_BREVE:
 555         case LFUN_DOT:
 556         case LFUN_MACRON:
 557         case LFUN_CARON:
 558         case LFUN_TILDE:
 559         case LFUN_CEDILLA:
 560         case LFUN_CIRCLE:
 561         case LFUN_UNDERDOT:
 562         case LFUN_TIE:
 563         case LFUN_OGONEK:
 564         case LFUN_HUNG_UMLAUT:
 565                 break;
 566
 567         //  Math fonts
 568         case LFUN_GREEK_TOGGLE: handleFont(bv, arg, LM_TC_GREEK); break;
 569         case LFUN_BOLD:         handleFont(bv, arg, LM_TC_BF); break;
 570         case LFUN_SANS:         handleFont(bv, arg, LM_TC_SF); break;
 571         case LFUN_EMPH:         handleFont(bv, arg, LM_TC_CAL); break;
 572         case LFUN_ROMAN:        handleFont(bv, arg, LM_TC_RM); break;
 573         case LFUN_CODE:         handleFont(bv, arg, LM_TC_TT); break;
 574         case LFUN_FRAK:         handleFont(bv, arg, LM_TC_EUFRAK); break;
 575         case LFUN_ITAL:         handleFont(bv, arg, LM_TC_IT); break;
 576         case LFUN_NOUN:         handleFont(bv, arg, LM_TC_BB); break;
 577         case LFUN_DEFAULT:      handleFont(bv, arg, LM_TC_VAR); break;
 578         case LFUN_FREE:         handleFont(bv, arg, LM_TC_TEXTRM); break;
 579
 580         case LFUN_GREEK:
 581                 handleFont(bv, arg, LM_TC_GREEK1);
 582                 if (arg.size())
 583                         mathcursor->interpret(arg);
 584                 break;
 585
 586         case LFUN_MATH_MODE:
 587 #if 1
 588                 handleFont(bv, arg, LM_TC_TEXTRM);
 589 #endif
 590
 591 #if 0
 592                 mathcursor->niceInsert(MathAtom(new MathHullInset(LM_OT_SIMPLE)));
 593                 updateLocal(bv, true);
 594 #endif
 595
 596                 //bv->owner()->message(_("math text mode toggled"));
 597                 break;
 598
 599         case LFUN_MATH_LIMITS:
 600                 bv->lockedInsetStoreUndo(Undo::EDIT);
 601                 if (mathcursor->toggleLimits())
 602                         updateLocal(bv, true);
 603                 break;
 604
 605         case LFUN_MATH_SIZE:
 606 #if 0
 607                 if (!arg.empty()) {
 608                         bv->lockedInsetStoreUndo(Undo::EDIT);
 609                         mathcursor->setSize(arg);
 610                         updateLocal(bv, true);
 611                 }
 612 #endif
 613                 break;
 614
 615         case LFUN_INSERT_MATRIX:
 616                 if (!arg.empty()) {
 617                         bv->lockedInsetStoreUndo(Undo::EDIT);
 618                         mathcursor->interpret("matrix " + arg);
 619                         updateLocal(bv, true);
 620                 }
 621                 break;
 622
 623         case LFUN_SUPERSCRIPT:
 624         case LFUN_SUBSCRIPT:
 625         {
 626                 bv->lockedInsetStoreUndo(Undo::EDIT);
 627                 mathcursor->script(action == LFUN_SUPERSCRIPT);
 628                 updateLocal(bv, true);
 629                 break;
 630         }
 631
 632         case LFUN_MATH_DELIM:
 633         {
 634                 //lyxerr << "formulabase::LFUN_MATH_DELIM, arg: '" << arg << "'\n";
 635                 string ls;
 636                 string rs = split(arg, ls, ' ');
 637                 // Reasonable default values
 638                 if (ls.empty())
 639                         ls = '(';
 640                 if (rs.empty())
 641                         rs = ')';
 642
 643                 bv->lockedInsetStoreUndo(Undo::EDIT);
 644                 mathcursor->handleDelim(ls, rs);
 645                 updateLocal(bv, true);
 646                 break;
 647         }
 648
 649         case LFUN_PROTECTEDSPACE:
 650         case LFUN_MATH_SPACE:
 651                 bv->lockedInsetStoreUndo(Undo::EDIT);
 652                 mathcursor->insert(MathAtom(new MathSpaceInset(1)));
 653                 updateLocal(bv, true);
 654                 break;
 655
 656         case LFUN_UNDO:
 657                 bv->owner()->message(_("Invalid action in math mode!"));
 658                 break;
 659
 660
 661         case LFUN_MATH_HALIGN:
 662         case LFUN_MATH_VALIGN:
 663         case LFUN_MATH_ROW_INSERT:
 664         case LFUN_MATH_ROW_DELETE:
 665         case LFUN_MATH_COLUMN_INSERT:
 666         case LFUN_MATH_COLUMN_DELETE:
 667         {
 668                 MathInset::idx_type idx = 0;
 669                 MathGridInset * p = mathcursor ? mathcursor->enclosingGrid(idx) : 0;
 670                 if (p) {
 671                         mathcursor->popToEnclosingGrid();
 672                         bv->lockedInsetStoreUndo(Undo::EDIT);
 673                         char align = arg.size() ? arg[0] : 'c';
 674                         switch (action) {
 675                                 case LFUN_MATH_HALIGN: p->halign(align, p->col(idx)); break;
 676                                 case LFUN_MATH_VALIGN: p->valign(align); break;
 677                                 case LFUN_MATH_ROW_INSERT: p->addRow(p->row(idx)); break;
 678                                 case LFUN_MATH_ROW_DELETE: p->delRow(p->row(idx)); break;
 679                                 case LFUN_MATH_COLUMN_INSERT: p->addCol(p->col(idx)); break;
 680                                 case LFUN_MATH_COLUMN_DELETE: p->delCol(p->col(idx)); break;
 681                                 default: ;
 682                         }
 683                         updateLocal(bv, true);
 684                 }
 685                 break;
 686         }
 687
 688         case LFUN_EXEC_COMMAND:
 689                 result = UNDISPATCHED;
 690                 break;
 691
 692         case LFUN_BREAKPARAGRAPH:
 693         case LFUN_BREAKPARAGRAPHKEEPLAYOUT:
 694                 //lyxerr << "LFUN ignored\n";
 695                 break;
 696
 697         case LFUN_INSET_ERT:
 698                 // interpret this as if a backslash was typed
 699                 bv->lockedInsetStoreUndo(Undo::EDIT);
 700                 mathcursor->interpret('\\');
 701                 updateLocal(bv, true);
 702                 break;
 703
 704         case -1:
 705         case LFUN_INSERT_MATH:
 706         case LFUN_SELFINSERT:
 707                 if (!arg.empty()) {
 708                         bv->lockedInsetStoreUndo(Undo::EDIT);
 709                         if (arg.size() == 1)
 710                                 result = mathcursor->interpret(arg[0]) ? DISPATCHED : FINISHED_RIGHT;
 711                         else
 712                                 result = mathcursor->interpret(arg) ? DISPATCHED : FINISHED_RIGHT;
 713                         updateLocal(bv, true);
 714                 }
 715                 break;
 716
 717         case LFUN_MATH_PANEL:
 718                 result = UNDISPATCHED;
 719                 break;
 720
 721         case LFUN_ESCAPE:
 722                 if (mathcursor->selection())
 723                         mathcursor->selClear();
 724                 else
 725                         result = UNDISPATCHED;
 726                 break;
 727
 728         default:
 729                 result = UNDISPATCHED;
 730         }
 731
 732         mathcursor->normalize();
 733         mathcursor->touch();
 734
 735         lyx::Assert(mathcursor);
 736
 737         if (mathcursor->selection() || was_selection)
 738                 toggleInsetSelection(bv);
 739
 740         if (result == DISPATCHED || result == DISPATCHED_NOUPDATE ||
 741             result == UNDISPATCHED)
 742                 showInsetCursor(bv);
 743         else
 744                 bv->unlockInset(this);
 745
 746         revealCodes(bv);
 747
 748         return result;  // original version
 749 }
 750
 751
 752 void InsetFormulaBase::revealCodes(BufferView * /*bv*/) const
 753 {
 754         if (!mathcursor)
 755                 return;
 756 #if 0
 757         // write something to the minibuffer
 758         // translate to latex
 759         mathcursor->markInsert();
 760         ostringstream os;
 761         write(NULL, os);
 762         string str = os.str();
 763         mathcursor->markErase();
 764         string::size_type pos = 0;
 765         string res;
 766         for (string::iterator it = str.begin(); it != str.end(); ++it) {
 767                 if (*it == '\n')
 768                         res += ' ';
 769                 else if (*it == '\0') {
 770                         res += "  -X-  ";
 771                         pos = it - str.begin();
 772                 }
 773                 else
 774                         res += *it;
 775         }
 776         if (pos > 30)
 777                 res = res.substr(pos - 30);
 778         if (res.size() > 60)
 779                 res = res.substr(0, 60);
 780         bv->owner()->message(res);
 781 #endif
 782 }
 783
 784
 785 Inset::Code InsetFormulaBase::lyxCode() const
 786 {
 787         return Inset::MATH_CODE;
 788 }
 789
 790
 791 int InsetFormulaBase::ylow() const
 792 {
 793         return yo_ - ascent(view_, font_);
 794 }
 795
 796
 797 int InsetFormulaBase::yhigh() const
 798 {
 799         return yo_ + descent(view_, font_);
 800 }
 801
 802
 803 int InsetFormulaBase::xlow() const
 804 {
 805         return xo_;
 806 }
 807
 808
 809 int InsetFormulaBase::xhigh() const
 810 {
 811         return xo_ + width(view_, font_);
 812 }
 813
 814
 815 /////////////////////////////////////////////////////////////////////
 816
 817
 818 bool InsetFormulaBase::searchForward(BufferView * bv, string const & str,
 819                                      bool, bool)
 820 {
 821 #ifdef WITH_WARNINGS
 822 #warning pretty ugly
 823 #endif
 824         static InsetFormulaBase * lastformula = 0;
 825         static MathIterator current = MathIterator(ibegin(par().nucleus()));
 826         static MathArray ar;
 827         static string laststr;
 828
 829         if (lastformula != this || laststr != str) {
 830                 //lyxerr << "reset lastformula to " << this << "\n";
 831                 lastformula = this;
 832                 laststr = str;
 833                 current = ibegin(par().nucleus());
 834                 ar.clear();
 835                 mathed_parse_cell(ar, str);
 836         } else {
 837                 ++current;
 838         }
 839         //lyxerr << "searching '" << str << "' in " << this << ar << endl;
 840
 841         for (MathIterator it = current; it != iend(par().nucleus()); ++it) {
 842                 if (it.cell().matchpart(ar, it.position().pos_)) {
 843                         mathcursor->setSelection(it.cursor(), ar.size());
 844                         current = it;
 845                         it.jump(ar.size());
 846                         // I guess some of the following can go
 847                         bv->toggleSelection(true);
 848                         hideInsetCursor(bv);
 849                         updateLocal(bv, true);
 850                         showInsetCursor(bv);
 851                         metrics(bv);
 852                         return true;
 853                 }
 854         }
 855
 856         //lyxerr << "not found!\n";
 857         lastformula = 0;
 858         // we have to unlock ourself in this function by default!
 859         // don't ask me why...
 860         bv->unlockInset(this);
 861         return false;
 862 }
 863
 864
 865 bool InsetFormulaBase::searchBackward(BufferView * bv, string const & what,
 866                                       bool a, bool b)
 867 {
 868         lyxerr << "searching backward not implemented in mathed" << endl;
 869         return searchForward(bv, what, a, b);
 870 }
 871
 872
 873 /////////////////////////////////////////////////////////////////////
 874
 875
 876 void mathDispatchCreation(BufferView * bv, string const & arg, bool display)
 877 {
 878         if (bv->available()) {
 879                 // use selection if available..
 880                 //string sel;
 881                 //if (action == LFUN_MATH_IMPORT_SELECTION)
 882                 //      sel = "";
 883                 //else
 884
 885                 string sel = bv->getLyXText()->selectionAsString(bv->buffer(), false);
 886
 887                 InsetFormulaBase * f;
 888                 if (sel.empty()) {
 889                         f = new InsetFormula;
 890                         if (openNewInset(bv, f)) {
 891                                 // don't do that also for LFUN_MATH_MODE unless you want end up with
 892                                 // always changing to mathrm when opening an inlined inset
 893                                 // -- I really hate "LyXfunc overloading"...
 894                                 if (display)
 895                                         f->localDispatch(bv, LFUN_MATH_DISPLAY, string());
 896                                 f->localDispatch(bv, LFUN_INSERT_MATH, arg);
 897                         }
 898                 } else {
 899                         // create a macro if we see "\\newcommand" somewhere, and an ordinary
 900                         // formula otherwise
 901                         if (sel.find("\\newcommand") == string::npos &&
 902                                   sel.find("\\def") == string::npos)
 903                                 f = new InsetFormula(sel);
 904                         else {
 905                                 string name;
 906                                 if (!mathed_parse_macro(name, sel))
 907                                         return;
 908                                 f = new InsetFormulaMacro(sel);
 909                         }
 910                         bv->getLyXText()->cutSelection(bv);
 911                         openNewInset(bv, f);
 912                 }
 913         }
 914         bv->owner()->getLyXFunc()->setMessage(N_("Math editor mode"));
 915 }
 916
 917
 918 void mathDispatchMathDisplay(BufferView * bv, string const & arg)
 919 {
 920         mathDispatchCreation(bv, arg, true);
 921 }
 922
 923
 924 void mathDispatchMathMode(BufferView * bv, string const & arg)
 925 {
 926         mathDispatchCreation(bv, arg, false);
 927 }
 928
 929
 930 void mathDispatchMathImportSelection(BufferView * bv, string const & arg)
 931 {
 932         mathDispatchCreation(bv, arg, true);
 933 }
 934
 935
 936 void mathDispatchMathMacro(BufferView * bv, string const & arg)
 937 {
 938         if (bv->available()) {
 939                 if (arg.empty())
 940                         bv->owner()->getLyXFunc()->setErrorMessage(N_("Missing argument"));
 941                 else {
 942                         string s = arg;
 943                         string const s1 = token(s, ' ', 1);
 944                         int const na = s1.empty() ? 0 : lyx::atoi(s1);
 945                         openNewInset(bv, new InsetFormulaMacro(token(s, ' ', 0), na));
 946                 }
 947         }
 948 }
 949
 950
 951 void mathDispatchMathDelim(BufferView * bv, string const & arg)
 952 {
 953         if (bv->available()) {
 954                 if (openNewInset(bv, new InsetFormula))
 955                         bv->theLockingInset()->localDispatch(bv, LFUN_MATH_DELIM, arg);
 956         }
 957 }
 958
 959
 960 void mathDispatchInsertMatrix(BufferView * bv, string const & arg)
 961 {
 962         if (bv->available()) {
 963                 if (openNewInset(bv, new InsetFormula))
 964                         bv->theLockingInset()->localDispatch(bv, LFUN_INSERT_MATRIX, arg);
 965         }
 966 }
 967
 968
 969 void mathDispatchInsertMath(BufferView * bv, string const & arg)
 970 {
 971         if (bv->available()) {
 972                 if (arg.size() && arg[0] == '\\') {
 973                         InsetFormula * f = new InsetFormula(arg);
 974                         if (!bv->insertInset(f))
 975                                 delete f;
 976                         else if (!mathcursor) // hotfix
 977                                 bv->getLyXText()->cursorRight(bv);
 978                 } else {
 979                         mathDispatchMathMode(bv, arg);
 980                 }
 981         }
 982 }
 983
 984
 985 void mathDispatchGreek(BufferView * bv, string const & arg)
 986 {
 987         if (bv->available()) {
 988                 InsetFormula * f = new InsetFormula;
 989                 if (openNewInset(bv, f)) {
 990                         bv->theLockingInset()->localDispatch(bv, LFUN_GREEK, arg);
 991                         bv->unlockInset(f);
 992                 }
 993         }
 994 }
 995
 996
 997 void mathDispatch(BufferView *, kb_action, string const &)
 998 {}